X-Git-Url: http://git.hcoop.net/bpt/emacs.git/blobdiff_plain/ac1f48a4dc28f2634b482ef7adda0c8919d1a663..4336c70520accb670fa8dc472d04f0efaae9a77c:/src/xfns.c?ds=sidebyside diff --git a/src/xfns.c b/src/xfns.c index 5a25161292..dafee872a3 100644 --- a/src/xfns.c +++ b/src/xfns.c @@ -1,5 +1,6 @@ /* Functions for the X window system. - Copyright (C) 1989, 92, 93, 94, 95, 96, 1997 Free Software Foundation. + Copyright (C) 1989, 92, 93, 94, 95, 96, 1997, 1998, 1999 + Free Software Foundation. This file is part of GNU Emacs. @@ -18,14 +19,13 @@ along with GNU Emacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -/* Completely rewritten by Richard Stallman. */ - -/* Rewritten for X11 by Joseph Arceneaux */ - -#include #include +#include +#include +#include /* This makes the fields of a Display accessible, in Xlib header files. */ + #define XLIB_ILLEGAL_ACCESS #include "lisp.h" @@ -33,17 +33,25 @@ Boston, MA 02111-1307, USA. */ #include "frame.h" #include "window.h" #include "buffer.h" +#include "intervals.h" #include "dispextern.h" #include "keyboard.h" #include "blockinput.h" #include #include "charset.h" #include "fontset.h" +#include "systime.h" +#include "termhooks.h" +#include "atimer.h" #ifdef HAVE_X_WINDOWS -extern void abort (); + +#include +#include +#include /* On some systems, the character-composition stuff is broken in X11R5. */ + #if defined (HAVE_X11R5) && ! defined (HAVE_X11R6) #ifdef X11R5_INHIBIT_I18N #define X_I18N_INHIBITED @@ -80,15 +88,22 @@ extern void abort (); #include "../lwlib/lwlib.h" +#ifdef USE_MOTIF +#include +#include +#include +#endif + /* Do the EDITRES protocol if running X11R5 Exception: HP-UX (at least version A.09.05) has X11R5 without EditRes */ + #if (XtSpecificationRelease >= 5) && !defined(NO_EDITRES) #define HACK_EDITRES extern void _XEditResCheckMessages (); #endif /* R5 + Athena */ -/* Unique id counter for widgets created by the Lucid Widget - Library. */ +/* Unique id counter for widgets created by the Lucid Widget Library. */ + extern LWLIB_ID widget_id_tick; #ifdef USE_LUCID @@ -97,6 +112,8 @@ extern XFontStruct *xlwmenu_default_font; #endif extern void free_frame_menubar (); +extern double atof (); + #endif /* USE_X_TOOLKIT */ #define min(a,b) ((a) < (b) ? (a) : (b)) @@ -108,32 +125,55 @@ extern void free_frame_menubar (); #define MAXREQUEST(dpy) ((dpy)->max_request_size) #endif +/* The gray bitmap `bitmaps/gray'. This is done because xterm.c uses + it, and including `bitmaps/gray' more than once is a problem when + config.h defines `static' as an empty replacement string. */ + +int gray_bitmap_width = gray_width; +int gray_bitmap_height = gray_height; +unsigned char *gray_bitmap_bits = gray_bits; + /* The name we're using in resource queries. Most often "emacs". */ + Lisp_Object Vx_resource_name; /* The application class we're using in resource queries. Normally "Emacs". */ + Lisp_Object Vx_resource_class; +/* Non-zero means we're allowed to display a busy cursor. */ + +int display_busy_cursor_p; + /* The background and shape of the mouse pointer, and shape when not over text or in the modeline. */ + Lisp_Object Vx_pointer_shape, Vx_nontext_pointer_shape, Vx_mode_pointer_shape; +Lisp_Object Vx_busy_pointer_shape; + /* The shape when over mouse-sensitive text. */ + Lisp_Object Vx_sensitive_text_pointer_shape; /* Color of chars displayed in cursor box. */ + Lisp_Object Vx_cursor_fore_pixel; /* Nonzero if using X. */ + static int x_in_use; /* Non nil if no window manager is in use. */ + Lisp_Object Vx_no_window_manager; /* Search path for bitmap files. */ + Lisp_Object Vx_bitmap_file_path; /* Regexp matching a font name whose width is the same as `PIXEL_SIZE'. */ + Lisp_Object Vx_pixel_size_width_font_regexp; /* Evaluate this expression to rebuild the section of syms_of_xfns @@ -173,14 +213,12 @@ Lisp_Object Vx_pixel_size_width_font_regexp; /*&&& symbols declared here &&&*/ Lisp_Object Qauto_raise; Lisp_Object Qauto_lower; -Lisp_Object Qbackground_color; Lisp_Object Qbar; Lisp_Object Qborder_color; Lisp_Object Qborder_width; Lisp_Object Qbox; Lisp_Object Qcursor_color; Lisp_Object Qcursor_type; -Lisp_Object Qforeground_color; Lisp_Object Qgeometry; Lisp_Object Qicon_left; Lisp_Object Qicon_top; @@ -195,7 +233,7 @@ Lisp_Object Qouter_window_id; Lisp_Object Qparent_id; Lisp_Object Qscroll_bar_width; Lisp_Object Qsuppress_icon; -Lisp_Object Qtop; +extern Lisp_Object Qtop; Lisp_Object Qundefined_color; Lisp_Object Qvertical_scroll_bars; Lisp_Object Qvisibility; @@ -204,17 +242,23 @@ Lisp_Object Qx_frame_parameter; Lisp_Object Qx_resource_name; Lisp_Object Quser_position; Lisp_Object Quser_size; -Lisp_Object Qdisplay; +extern Lisp_Object Qdisplay; +Lisp_Object Qscroll_bar_foreground, Qscroll_bar_background; +Lisp_Object Qscreen_gamma; /* The below are defined in frame.c. */ + extern Lisp_Object Qheight, Qminibuffer, Qname, Qonly, Qwidth; extern Lisp_Object Qunsplittable, Qmenu_bar_lines, Qbuffer_predicate, Qtitle; +extern Lisp_Object Qtool_bar_lines; extern Lisp_Object Vwindow_system_version; Lisp_Object Qface_set_after_frame_default; + /* Error if we are not connected to X. */ + void check_x () { @@ -241,12 +285,9 @@ check_x_frame (frame) FRAME_PTR f; if (NILP (frame)) - f = selected_frame; - else - { - CHECK_LIVE_FRAME (frame, 0); - f = XFRAME (frame); - } + frame = selected_frame; + CHECK_LIVE_FRAME (frame, 0); + f = XFRAME (frame); if (! FRAME_X_P (f)) error ("Non-X frame used"); return f; @@ -262,9 +303,10 @@ check_x_display_info (frame) { if (NILP (frame)) { - if (FRAME_X_P (selected_frame) - && FRAME_LIVE_P (selected_frame)) - return FRAME_X_DISPLAY_INFO (selected_frame); + struct frame *sf = XFRAME (selected_frame); + + if (FRAME_X_P (sf) && FRAME_LIVE_P (sf)) + return FRAME_X_DISPLAY_INFO (sf); else if (x_display_list != 0) return x_display_list; else @@ -283,6 +325,7 @@ check_x_display_info (frame) return FRAME_X_DISPLAY_INFO (f); } } + /* Return the Emacs frame-object corresponding to an X window. It could be the frame's main window or an icon window. */ @@ -297,17 +340,22 @@ x_window_to_frame (dpyinfo, wdesc) Lisp_Object tail, frame; struct frame *f; - for (tail = Vframe_list; GC_CONSP (tail); tail = XCONS (tail)->cdr) + for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail)) { - frame = XCONS (tail)->car; + frame = XCAR (tail); if (!GC_FRAMEP (frame)) continue; f = XFRAME (frame); - if (f->output_data.nothing == 1 || FRAME_X_DISPLAY_INFO (f) != dpyinfo) + if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo) continue; + if (f->output_data.x->busy_window == wdesc) + return f; #ifdef USE_X_TOOLKIT if ((f->output_data.x->edit_widget && XtWindow (f->output_data.x->edit_widget) == wdesc) + /* A tooltip frame? */ + || (!f->output_data.x->edit_widget + && FRAME_X_WINDOW (f) == wdesc) || f->output_data.x->icon_desc == wdesc) return f; #else /* not USE_X_TOOLKIT */ @@ -329,28 +377,40 @@ x_any_window_to_frame (dpyinfo, wdesc) int wdesc; { Lisp_Object tail, frame; - struct frame *f; + struct frame *f, *found; struct x_output *x; - for (tail = Vframe_list; GC_CONSP (tail); tail = XCONS (tail)->cdr) + found = NULL; + for (tail = Vframe_list; GC_CONSP (tail) && !found; tail = XCDR (tail)) { - frame = XCONS (tail)->car; + frame = XCAR (tail); if (!GC_FRAMEP (frame)) continue; + f = XFRAME (frame); - if (f->output_data.nothing == 1 || FRAME_X_DISPLAY_INFO (f) != dpyinfo) - continue; - x = f->output_data.x; - /* This frame matches if the window is any of its widgets. */ - if (wdesc == XtWindow (x->widget) - || wdesc == XtWindow (x->column_widget) - || wdesc == XtWindow (x->edit_widget)) - return f; - /* Match if the window is this frame's menubar. */ - if (lw_window_is_in_menubar (wdesc, x->menubar_widget)) - return f; + if (FRAME_X_P (f) && FRAME_X_DISPLAY_INFO (f) == dpyinfo) + { + /* This frame matches if the window is any of its widgets. */ + x = f->output_data.x; + if (x->busy_window == wdesc) + found = f; + else if (x->widget) + { + if (wdesc == XtWindow (x->widget) + || wdesc == XtWindow (x->column_widget) + || wdesc == XtWindow (x->edit_widget)) + found = f; + /* Match if the window is this frame's menubar. */ + else if (lw_window_is_in_menubar (wdesc, x->menubar_widget)) + found = f; + } + else if (FRAME_X_WINDOW (f) == wdesc) + /* A tooltip frame. */ + found = f; + } } - return 0; + + return found; } /* Likewise, but exclude the menu bar widget. */ @@ -364,19 +424,27 @@ x_non_menubar_window_to_frame (dpyinfo, wdesc) struct frame *f; struct x_output *x; - for (tail = Vframe_list; GC_CONSP (tail); tail = XCONS (tail)->cdr) + for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail)) { - frame = XCONS (tail)->car; + frame = XCAR (tail); if (!GC_FRAMEP (frame)) continue; f = XFRAME (frame); - if (f->output_data.nothing == 1 || FRAME_X_DISPLAY_INFO (f) != dpyinfo) + if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo) continue; x = f->output_data.x; /* This frame matches if the window is any of its widgets. */ - if (wdesc == XtWindow (x->widget) - || wdesc == XtWindow (x->column_widget) - || wdesc == XtWindow (x->edit_widget)) + if (x->busy_window == wdesc) + return f; + else if (x->widget) + { + if (wdesc == XtWindow (x->widget) + || wdesc == XtWindow (x->column_widget) + || wdesc == XtWindow (x->edit_widget)) + return f; + } + else if (FRAME_X_WINDOW (f) == wdesc) + /* A tooltip frame. */ return f; } return 0; @@ -393,17 +461,18 @@ x_menubar_window_to_frame (dpyinfo, wdesc) struct frame *f; struct x_output *x; - for (tail = Vframe_list; GC_CONSP (tail); tail = XCONS (tail)->cdr) + for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail)) { - frame = XCONS (tail)->car; + frame = XCAR (tail); if (!GC_FRAMEP (frame)) continue; f = XFRAME (frame); - if (f->output_data.nothing == 1 || FRAME_X_DISPLAY_INFO (f) != dpyinfo) + if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo) continue; x = f->output_data.x; /* Match if the window is this frame's menubar. */ - if (lw_window_is_in_menubar (wdesc, x->menubar_widget)) + if (x->menubar_widget + && lw_window_is_in_menubar (wdesc, x->menubar_widget)) return f; } return 0; @@ -421,26 +490,33 @@ x_top_window_to_frame (dpyinfo, wdesc) struct frame *f; struct x_output *x; - for (tail = Vframe_list; GC_CONSP (tail); tail = XCONS (tail)->cdr) + for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail)) { - frame = XCONS (tail)->car; + frame = XCAR (tail); if (!GC_FRAMEP (frame)) continue; f = XFRAME (frame); - if (f->output_data.nothing == 1 || FRAME_X_DISPLAY_INFO (f) != dpyinfo) + if (!FRAME_X_P (f) || FRAME_X_DISPLAY_INFO (f) != dpyinfo) continue; x = f->output_data.x; - /* This frame matches if the window is its topmost widget. */ - if (wdesc == XtWindow (x->widget)) - return f; + + if (x->widget) + { + /* This frame matches if the window is its topmost widget. */ + if (wdesc == XtWindow (x->widget)) + return f; #if 0 /* I don't know why it did this, but it seems logically wrong, and it causes trouble for MapNotify events. */ - /* Match if the window is this frame's menubar. */ - if (x->menubar_widget - && wdesc == XtWindow (x->menubar_widget)) - return f; + /* Match if the window is this frame's menubar. */ + if (x->menubar_widget + && wdesc == XtWindow (x->menubar_widget)) + return f; #endif + } + else if (FRAME_X_WINDOW (f) == wdesc) + /* Tooltip frame. */ + return f; } return 0; } @@ -592,7 +668,7 @@ x_create_bitmap_from_file (f, file) /* XReadBitmapFile won't handle magic file names. */ if (fd == 0) return -1; - close (fd); + emacs_close (fd); filename = (char *) XSTRING (found)->data; @@ -632,7 +708,7 @@ x_destroy_bitmap (f, id) XFreePixmap (FRAME_X_DISPLAY (f), dpyinfo->bitmaps[id - 1].pixmap); if (dpyinfo->bitmaps[id - 1].file) { - free (dpyinfo->bitmaps[id - 1].file); + xfree (dpyinfo->bitmaps[id - 1].file); dpyinfo->bitmaps[id - 1].file = NULL; } UNBLOCK_INPUT; @@ -652,7 +728,7 @@ x_destroy_all_bitmaps (dpyinfo) { XFreePixmap (dpyinfo->display, dpyinfo->bitmaps[i].pixmap); if (dpyinfo->bitmaps[i].file) - free (dpyinfo->bitmaps[i].file); + xfree (dpyinfo->bitmaps[i].file); } dpyinfo->bitmaps_last = 0; } @@ -667,29 +743,43 @@ x_destroy_all_bitmaps (dpyinfo) struct x_frame_parm_table { char *name; - void (*setter)( /* struct frame *frame, Lisp_Object val, oldval */ ); + void (*setter) P_ ((struct frame *, Lisp_Object, Lisp_Object)); }; -void x_set_foreground_color (); -void x_set_background_color (); -void x_set_mouse_color (); -void x_set_cursor_color (); -void x_set_border_color (); -void x_set_cursor_type (); -void x_set_icon_type (); -void x_set_icon_name (); -void x_set_font (); -void x_set_border_width (); -void x_set_internal_border_width (); -void x_explicitly_set_name (); -void x_set_autoraise (); -void x_set_autolower (); -void x_set_vertical_scroll_bars (); -void x_set_visibility (); -void x_set_menu_bar_lines (); -void x_set_scroll_bar_width (); -void x_set_title (); -void x_set_unsplittable (); +static void x_create_im P_ ((struct frame *)); +void x_set_foreground_color P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_background_color P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_mouse_color P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_cursor_color P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_border_color P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_cursor_type P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_icon_type P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_icon_name P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_font P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_border_width P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_internal_border_width P_ ((struct frame *, Lisp_Object, + Lisp_Object)); +void x_explicitly_set_name P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_autoraise P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_autolower P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_vertical_scroll_bars P_ ((struct frame *, Lisp_Object, + Lisp_Object)); +void x_set_visibility P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_menu_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_scroll_bar_width P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_title P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_unsplittable P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_tool_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object)); +void x_set_scroll_bar_foreground P_ ((struct frame *, Lisp_Object, + Lisp_Object)); +void x_set_scroll_bar_background P_ ((struct frame *, Lisp_Object, + Lisp_Object)); +static Lisp_Object x_default_scroll_bar_color_parameter P_ ((struct frame *, + Lisp_Object, + Lisp_Object, + char *, char *, + int)); +static void x_set_screen_gamma P_ ((struct frame *, Lisp_Object, Lisp_Object)); static struct x_frame_parm_table x_frame_parms[] = { @@ -713,6 +803,10 @@ static struct x_frame_parm_table x_frame_parms[] = "unsplittable", x_set_unsplittable, "vertical-scroll-bars", x_set_vertical_scroll_bars, "visibility", x_set_visibility, + "tool-bar-lines", x_set_tool_bar_lines, + "scroll-bar-foreground", x_set_scroll_bar_foreground, + "scroll-bar-background", x_set_scroll_bar_background, + "screen-gamma", x_set_screen_gamma }; /* Attach the `x-frame-parameter' properties to @@ -753,7 +847,7 @@ x_set_frame_parameters (f, alist) /* Record in these vectors all the parms specified. */ Lisp_Object *parms; Lisp_Object *values; - int i; + int i, p; int left_no_change = 0, top_no_change = 0; int icon_left_no_change = 0, icon_top_no_change = 0; @@ -771,7 +865,7 @@ x_set_frame_parameters (f, alist) i = 0; for (tail = alist; CONSP (tail); tail = Fcdr (tail)) { - Lisp_Object elt, prop, val; + Lisp_Object elt; elt = Fcar (tail); parms[i] = Fcar (elt); @@ -801,6 +895,29 @@ x_set_frame_parameters (f, alist) else height = FRAME_HEIGHT (f); + /* Process foreground_color and background_color before anything else. + They are independent of other properties, but other properties (e.g., + cursor_color) are dependent upon them. */ + for (p = 0; p < i; p++) + { + Lisp_Object prop, val; + + prop = parms[p]; + val = values[p]; + if (EQ (prop, Qforeground_color) || EQ (prop, Qbackground_color)) + { + register Lisp_Object param_index, old_value; + + param_index = Fget (prop, Qx_frame_parameter); + old_value = get_frame_param (f, prop); + store_frame_param (f, prop, val); + if (NATNUMP (param_index) + && (XFASTINT (param_index) + < sizeof (x_frame_parms)/sizeof (x_frame_parms[0]))) + (*x_frame_parms[XINT (param_index)].setter)(f, val, old_value); + } + } + /* Now process them in reverse of specified order. */ for (i--; i >= 0; i--) { @@ -821,6 +938,9 @@ x_set_frame_parameters (f, alist) icon_top = val; else if (EQ (prop, Qicon_left)) icon_left = val; + else if (EQ (prop, Qforeground_color) || EQ (prop, Qbackground_color)) + /* Processed above. */ + continue; else { register Lisp_Object param_index, old_value; @@ -907,18 +1027,18 @@ x_set_frame_parameters (f, alist) if (leftpos < 0) f->output_data.x->size_hint_flags |= XNegative; } - else if (CONSP (left) && EQ (XCONS (left)->car, Qminus) - && CONSP (XCONS (left)->cdr) - && INTEGERP (XCONS (XCONS (left)->cdr)->car)) + else if (CONSP (left) && EQ (XCAR (left), Qminus) + && CONSP (XCDR (left)) + && INTEGERP (XCAR (XCDR (left)))) { - leftpos = - XINT (XCONS (XCONS (left)->cdr)->car); + leftpos = - XINT (XCAR (XCDR (left))); f->output_data.x->size_hint_flags |= XNegative; } - else if (CONSP (left) && EQ (XCONS (left)->car, Qplus) - && CONSP (XCONS (left)->cdr) - && INTEGERP (XCONS (XCONS (left)->cdr)->car)) + else if (CONSP (left) && EQ (XCAR (left), Qplus) + && CONSP (XCDR (left)) + && INTEGERP (XCAR (XCDR (left)))) { - leftpos = XINT (XCONS (XCONS (left)->cdr)->car); + leftpos = XINT (XCAR (XCDR (left))); } if (EQ (top, Qminus)) @@ -929,18 +1049,18 @@ x_set_frame_parameters (f, alist) if (toppos < 0) f->output_data.x->size_hint_flags |= YNegative; } - else if (CONSP (top) && EQ (XCONS (top)->car, Qminus) - && CONSP (XCONS (top)->cdr) - && INTEGERP (XCONS (XCONS (top)->cdr)->car)) + else if (CONSP (top) && EQ (XCAR (top), Qminus) + && CONSP (XCDR (top)) + && INTEGERP (XCAR (XCDR (top)))) { - toppos = - XINT (XCONS (XCONS (top)->cdr)->car); + toppos = - XINT (XCAR (XCDR (top))); f->output_data.x->size_hint_flags |= YNegative; } - else if (CONSP (top) && EQ (XCONS (top)->car, Qplus) - && CONSP (XCONS (top)->cdr) - && INTEGERP (XCONS (XCONS (top)->cdr)->car)) + else if (CONSP (top) && EQ (XCAR (top), Qplus) + && CONSP (XCDR (top)) + && INTEGERP (XCAR (XCDR (top)))) { - toppos = XINT (XCONS (XCONS (top)->cdr)->car); + toppos = XINT (XCAR (XCDR (top))); } @@ -978,7 +1098,9 @@ x_real_positions (f, xptr, yptr) the problem that arises when restarting window-managers. */ #ifdef USE_X_TOOLKIT - Window outer = XtWindow (f->output_data.x->widget); + Window outer = (f->output_data.x->widget + ? XtWindow (f->output_data.x->widget) + : FRAME_X_WINDOW (f)); #else Window outer = f->output_data.x->window_desc; #endif @@ -1031,8 +1153,8 @@ x_real_positions (f, xptr, yptr) x_uncatch_errors (FRAME_X_DISPLAY (f), count); } - *xptr = win_x - f->output_data.x->border_width; - *yptr = win_y - f->output_data.x->border_width; + *xptr = win_x; + *yptr = win_y; } /* Insert a description of internally-recorded parameters of frame X @@ -1070,7 +1192,11 @@ x_report_frame_params (f, alistptr) sprintf (buf, "%ld", (long) FRAME_X_WINDOW (f)); store_in_alist (alistptr, Qwindow_id, build_string (buf)); - sprintf (buf, "%ld", (long) FRAME_OUTER_WINDOW (f)); +#ifdef USE_X_TOOLKIT + /* Tooltip frame may not have this widget. */ + if (f->output_data.x->widget) +#endif + sprintf (buf, "%ld", (long) FRAME_OUTER_WINDOW (f)); store_in_alist (alistptr, Qouter_window_id, build_string (buf)); store_in_alist (alistptr, Qicon_name, f->icon_name); @@ -1079,7 +1205,7 @@ x_report_frame_params (f, alistptr) (FRAME_VISIBLE_P (f) ? Qt : FRAME_ICONIFIED_P (f) ? Qicon : Qnil)); store_in_alist (alistptr, Qdisplay, - XCONS (FRAME_X_DISPLAY_INFO (f)->name_list_element)->car); + XCAR (FRAME_X_DISPLAY_INFO (f)->name_list_element)); if (f->output_data.x->parent_desc == FRAME_X_DISPLAY_INFO (f)->root_window) tem = Qnil; @@ -1089,12 +1215,29 @@ x_report_frame_params (f, alistptr) } + +/* Gamma-correct COLOR on frame F. */ + +void +gamma_correct (f, color) + struct frame *f; + XColor *color; +{ + if (f->gamma) + { + color->red = pow (color->red / 65535.0, f->gamma) * 65535.0 + 0.5; + color->green = pow (color->green / 65535.0, f->gamma) * 65535.0 + 0.5; + color->blue = pow (color->blue / 65535.0, f->gamma) * 65535.0 + 0.5; + } +} + + /* Decide if color named COLOR is valid for the display associated with the selected frame; if so, return the rgb values in COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell. */ int -defined_color (f, color, color_def, alloc) +x_defined_color (f, color, color_def, alloc) FRAME_PTR f; char *color; XColor *color_def; @@ -1105,11 +1248,14 @@ defined_color (f, color, color_def, alloc) Display *display = FRAME_X_DISPLAY (f); BLOCK_INPUT; - screen_colormap = DefaultColormap (display, XDefaultScreen (display)); + screen_colormap = FRAME_X_COLORMAP (f); status = XParseColor (display, screen_colormap, color, color_def); if (status && alloc) { + /* Apply gamma correction. */ + gamma_correct (f, color_def); + status = XAllocColor (display, screen_colormap, color_def); if (!status) { @@ -1179,38 +1325,66 @@ defined_color (f, color, color_def, alloc) return 0; } -/* Given a string ARG naming a color, compute a pixel value from it - suitable for screen F. - If F is not a color screen, return DEF (default) regardless of what - ARG says. */ + +/* Return the pixel color value for color COLOR_NAME on frame F. If F + is a monochrome frame, return MONO_COLOR regardless of what ARG says. + Signal an error if color can't be allocated. */ int -x_decode_color (f, arg, def) +x_decode_color (f, color_name, mono_color) FRAME_PTR f; - Lisp_Object arg; - int def; + Lisp_Object color_name; + int mono_color; { XColor cdef; - CHECK_STRING (arg, 0); + CHECK_STRING (color_name, 0); - if (strcmp (XSTRING (arg)->data, "black") == 0) +#if 0 /* Don't do this. It's wrong when we're not using the default + colormap, it makes freeing difficult, and it's probably not + an important optimization. */ + if (strcmp (XSTRING (color_name)->data, "black") == 0) return BLACK_PIX_DEFAULT (f); - else if (strcmp (XSTRING (arg)->data, "white") == 0) + else if (strcmp (XSTRING (color_name)->data, "white") == 0) return WHITE_PIX_DEFAULT (f); +#endif + /* Return MONO_COLOR for monochrome frames. */ if (FRAME_X_DISPLAY_INFO (f)->n_planes == 1) - return def; + return mono_color; - /* defined_color is responsible for coping with failures + /* x_defined_color is responsible for coping with failures by looking for a near-miss. */ - if (defined_color (f, XSTRING (arg)->data, &cdef, 1)) + if (x_defined_color (f, XSTRING (color_name)->data, &cdef, 1)) return cdef.pixel; Fsignal (Qerror, Fcons (build_string ("undefined color"), - Fcons (arg, Qnil))); + Fcons (color_name, Qnil))); } + + +/* Change the `screen-gamma' frame parameter of frame F. OLD_VALUE is + the previous value of that parameter, NEW_VALUE is the new value. */ + +static void +x_set_screen_gamma (f, new_value, old_value) + struct frame *f; + Lisp_Object new_value, old_value; +{ + if (NILP (new_value)) + f->gamma = 0; + else if (NUMBERP (new_value) && XFLOATINT (new_value) > 0) + /* The value 0.4545 is the normal viewing gamma. */ + f->gamma = 1.0 / (0.4545 * XFLOATINT (new_value)); + else + Fsignal (Qerror, Fcons (build_string ("Illegal screen-gamma"), + Fcons (new_value, Qnil))); + + clear_face_cache (0); +} + + /* Functions called only from `x_set_frame_param' to set individual parameters. @@ -1227,10 +1401,7 @@ x_set_foreground_color (f, arg, oldval) unsigned long pixel = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f)); - if (f->output_data.x->foreground_pixel != f->output_data.x->mouse_pixel - && f->output_data.x->foreground_pixel != f->output_data.x->cursor_pixel - && f->output_data.x->foreground_pixel != f->output_data.x->cursor_foreground_pixel) - unload_color (f, f->output_data.x->foreground_pixel); + unload_color (f, f->output_data.x->foreground_pixel); f->output_data.x->foreground_pixel = pixel; if (FRAME_X_WINDOW (f) != 0) @@ -1241,7 +1412,7 @@ x_set_foreground_color (f, arg, oldval) XSetBackground (FRAME_X_DISPLAY (f), f->output_data.x->reverse_gc, f->output_data.x->foreground_pixel); UNBLOCK_INPUT; - recompute_basic_faces (f); + update_face_from_frame_parameter (f, Qforeground_color, arg); if (FRAME_VISIBLE_P (f)) redraw_frame (f); } @@ -1252,16 +1423,10 @@ x_set_background_color (f, arg, oldval) struct frame *f; Lisp_Object arg, oldval; { - Pixmap temp; - int mask; - unsigned long pixel = x_decode_color (f, arg, WHITE_PIX_DEFAULT (f)); - if (f->output_data.x->background_pixel != f->output_data.x->mouse_pixel - && f->output_data.x->background_pixel != f->output_data.x->cursor_pixel - && f->output_data.x->background_pixel != f->output_data.x->cursor_foreground_pixel) - unload_color (f, f->output_data.x->background_pixel); + unload_color (f, f->output_data.x->background_pixel); f->output_data.x->background_pixel = pixel; if (FRAME_X_WINDOW (f) != 0) @@ -1286,7 +1451,7 @@ x_set_background_color (f, arg, oldval) } UNBLOCK_INPUT; - recompute_basic_faces (f); + update_face_from_frame_parameter (f, Qbackground_color, arg); if (FRAME_VISIBLE_P (f)) redraw_frame (f); @@ -1299,24 +1464,17 @@ x_set_mouse_color (f, arg, oldval) Lisp_Object arg, oldval; { Cursor cursor, nontext_cursor, mode_cursor, cross_cursor; + Cursor busy_cursor; int count; - int mask_color; - unsigned long pixel = f->output_data.x->mouse_pixel; - - if (!EQ (Qnil, arg)) - pixel = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f)); + unsigned long pixel = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f)); + unsigned long mask_color = f->output_data.x->background_pixel; - mask_color = f->output_data.x->background_pixel; - /* No invisible pointers. */ + /* Don't let pointers be invisible. */ if (mask_color == pixel && mask_color == f->output_data.x->background_pixel) pixel = f->output_data.x->foreground_pixel; - if (f->output_data.x->background_pixel != f->output_data.x->mouse_pixel - && f->output_data.x->foreground_pixel != f->output_data.x->mouse_pixel - && f->output_data.x->cursor_pixel != f->output_data.x->mouse_pixel - && f->output_data.x->cursor_foreground_pixel != f->output_data.x->mouse_pixel) - unload_color (f, f->output_data.x->mouse_pixel); + unload_color (f, f->output_data.x->mouse_pixel); f->output_data.x->mouse_pixel = pixel; BLOCK_INPUT; @@ -1343,6 +1501,17 @@ x_set_mouse_color (f, arg, oldval) nontext_cursor = XCreateFontCursor (FRAME_X_DISPLAY (f), XC_left_ptr); x_check_errors (FRAME_X_DISPLAY (f), "bad nontext pointer cursor: %s"); + if (!EQ (Qnil, Vx_busy_pointer_shape)) + { + CHECK_NUMBER (Vx_busy_pointer_shape, 0); + busy_cursor = XCreateFontCursor (FRAME_X_DISPLAY (f), + XINT (Vx_busy_pointer_shape)); + } + else + busy_cursor = XCreateFontCursor (FRAME_X_DISPLAY (f), XC_watch); + x_check_errors (FRAME_X_DISPLAY (f), "bad busy pointer cursor: %s"); + + x_check_errors (FRAME_X_DISPLAY (f), "bad nontext pointer cursor: %s"); if (!EQ (Qnil, Vx_mode_pointer_shape)) { CHECK_NUMBER (Vx_mode_pointer_shape, 0); @@ -1372,13 +1541,9 @@ x_set_mouse_color (f, arg, oldval) fore_color.pixel = f->output_data.x->mouse_pixel; back_color.pixel = mask_color; - XQueryColor (FRAME_X_DISPLAY (f), - DefaultColormap (FRAME_X_DISPLAY (f), - DefaultScreen (FRAME_X_DISPLAY (f))), + XQueryColor (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), &fore_color); - XQueryColor (FRAME_X_DISPLAY (f), - DefaultColormap (FRAME_X_DISPLAY (f), - DefaultScreen (FRAME_X_DISPLAY (f))), + XQueryColor (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), &back_color); XRecolorCursor (FRAME_X_DISPLAY (f), cursor, &fore_color, &back_color); @@ -1388,12 +1553,12 @@ x_set_mouse_color (f, arg, oldval) &fore_color, &back_color); XRecolorCursor (FRAME_X_DISPLAY (f), cross_cursor, &fore_color, &back_color); + XRecolorCursor (FRAME_X_DISPLAY (f), busy_cursor, + &fore_color, &back_color); } if (FRAME_X_WINDOW (f) != 0) - { - XDefineCursor (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), cursor); - } + XDefineCursor (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), cursor); if (cursor != f->output_data.x->text_cursor && f->output_data.x->text_cursor != 0) XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->text_cursor); @@ -1404,10 +1569,16 @@ x_set_mouse_color (f, arg, oldval) XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->nontext_cursor); f->output_data.x->nontext_cursor = nontext_cursor; + if (busy_cursor != f->output_data.x->busy_cursor + && f->output_data.x->busy_cursor != 0) + XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->busy_cursor); + f->output_data.x->busy_cursor = busy_cursor; + if (mode_cursor != f->output_data.x->modeline_cursor && f->output_data.x->modeline_cursor != 0) XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->modeline_cursor); f->output_data.x->modeline_cursor = mode_cursor; + if (cross_cursor != f->output_data.x->cross_cursor && f->output_data.x->cross_cursor != 0) XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->cross_cursor); @@ -1415,6 +1586,8 @@ x_set_mouse_color (f, arg, oldval) XFlush (FRAME_X_DISPLAY (f)); UNBLOCK_INPUT; + + update_face_from_frame_parameter (f, Qmouse_color, arg); } void @@ -1439,18 +1612,10 @@ x_set_cursor_color (f, arg, oldval) fore_pixel = f->output_data.x->background_pixel; } - if (f->output_data.x->background_pixel != f->output_data.x->cursor_foreground_pixel - && f->output_data.x->foreground_pixel != f->output_data.x->cursor_foreground_pixel - && f->output_data.x->mouse_pixel != f->output_data.x->cursor_foreground_pixel - && f->output_data.x->cursor_pixel != f->output_data.x->cursor_foreground_pixel) - unload_color (f, f->output_data.x->cursor_foreground_pixel); + unload_color (f, f->output_data.x->cursor_foreground_pixel); f->output_data.x->cursor_foreground_pixel = fore_pixel; - if (f->output_data.x->background_pixel != f->output_data.x->cursor_pixel - && f->output_data.x->foreground_pixel != f->output_data.x->cursor_pixel - && f->output_data.x->mouse_pixel != f->output_data.x->cursor_pixel - && f->output_data.x->cursor_foreground_pixel != f->output_data.x->cursor_pixel) - unload_color (f, f->output_data.x->cursor_pixel); + unload_color (f, f->output_data.x->cursor_pixel); f->output_data.x->cursor_pixel = pixel; if (FRAME_X_WINDOW (f) != 0) @@ -1468,6 +1633,8 @@ x_set_cursor_color (f, arg, oldval) x_update_cursor (f, 1); } } + + update_face_from_frame_parameter (f, Qcursor_color, arg); } /* Set the border-color of frame F to value described by ARG. @@ -1486,15 +1653,12 @@ x_set_border_color (f, arg, oldval) struct frame *f; Lisp_Object arg, oldval; { - unsigned char *str; int pix; CHECK_STRING (arg, 0); - str = XSTRING (arg)->data; - pix = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f)); - x_set_border_pixel (f, pix); + update_face_from_frame_parameter (f, Qborder_color, arg); } /* Set the border-color of frame F to pixel value PIX. @@ -1511,9 +1675,6 @@ x_set_border_pixel (f, pix) if (FRAME_X_WINDOW (f) != 0 && f->output_data.x->border_width > 0) { - Pixmap temp; - int mask; - BLOCK_INPUT; XSetWindowBorder (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), (unsigned long)pix); @@ -1531,20 +1692,20 @@ x_set_cursor_type (f, arg, oldval) { if (EQ (arg, Qbar)) { - FRAME_DESIRED_CURSOR (f) = bar_cursor; + FRAME_DESIRED_CURSOR (f) = BAR_CURSOR; f->output_data.x->cursor_width = 2; } - else if (CONSP (arg) && EQ (XCONS (arg)->car, Qbar) - && INTEGERP (XCONS (arg)->cdr)) + else if (CONSP (arg) && EQ (XCAR (arg), Qbar) + && INTEGERP (XCDR (arg))) { - FRAME_DESIRED_CURSOR (f) = bar_cursor; - f->output_data.x->cursor_width = XINT (XCONS (arg)->cdr); + FRAME_DESIRED_CURSOR (f) = BAR_CURSOR; + f->output_data.x->cursor_width = XINT (XCDR (arg)); } else /* Treat anything unknown as "box cursor". It was bad to signal an error; people have trouble fixing .Xdefaults with Emacs, when it has something bad in it. */ - FRAME_DESIRED_CURSOR (f) = filled_box_cursor; + FRAME_DESIRED_CURSOR (f) = FILLED_BOX_CURSOR; /* Make sure the cursor gets redrawn. This is overkill, but how often do people change cursor types? */ @@ -1556,7 +1717,6 @@ x_set_icon_type (f, arg, oldval) struct frame *f; Lisp_Object arg, oldval; { - Lisp_Object tem; int result; if (STRINGP (arg)) @@ -1596,7 +1756,7 @@ x_icon_type (f) tem = assq_no_quit (Qicon_type, f->param_alist); if (CONSP (tem)) - return XCONS (tem)->cdr; + return XCDR (tem); else return Qnil; } @@ -1606,7 +1766,6 @@ x_set_icon_name (f, arg, oldval) struct frame *f; Lisp_Object arg, oldval; { - Lisp_Object tem; int result; if (STRINGP (arg)) @@ -1666,14 +1825,24 @@ x_set_font (f, arg, oldval) error ("The characters of the given font have varying widths"); else if (STRINGP (result)) { - recompute_basic_faces (f); store_frame_param (f, Qfont, result); + recompute_basic_faces (f); } else abort (); - XSETFRAME (frame, f); - call1 (Qface_set_after_frame_default, frame); + do_pending_window_change (0); + + /* Don't call `face-set-after-frame-default' when faces haven't been + initialized yet. This is the case when called from + Fx_create_frame. In that case, the X widget or window doesn't + exist either, and we can end up in x_report_frame_params with a + null widget which gives a segfault. */ + if (FRAME_FACE_CACHE (f)) + { + XSETFRAME (frame, f); + call1 (Qface_set_after_frame_default, frame); + } } void @@ -1697,7 +1866,6 @@ x_set_internal_border_width (f, arg, oldval) struct frame *f; Lisp_Object arg, oldval; { - int mask; int old = f->output_data.x->internal_border_width; CHECK_NUMBER (arg, 0); @@ -1715,14 +1883,9 @@ x_set_internal_border_width (f, arg, oldval) if (FRAME_X_WINDOW (f) != 0) { - BLOCK_INPUT; x_set_window_size (f, 0, f->width, f->height); -#if 0 - x_set_resize_hint (f); -#endif - XFlush (FRAME_X_DISPLAY (f)); - UNBLOCK_INPUT; SET_FRAME_GARBAGED (f); + do_pending_window_change (0); } } @@ -1752,6 +1915,11 @@ x_set_menu_bar_lines_1 (window, n) XSETFASTINT (w->top, XFASTINT (w->top) + n); XSETFASTINT (w->height, XFASTINT (w->height) - n); + if (INTEGERP (w->orig_top)) + XSETFASTINT (w->orig_top, XFASTINT (w->orig_top) + n); + if (INTEGERP (w->orig_height)) + XSETFASTINT (w->orig_height, XFASTINT (w->orig_height) - n); + /* Handle just the top child in a vertical split. */ if (!NILP (w->vchild)) x_set_menu_bar_lines_1 (w->vchild, n); @@ -1770,11 +1938,13 @@ x_set_menu_bar_lines (f, value, oldval) Lisp_Object value, oldval; { int nlines; +#ifndef USE_X_TOOLKIT int olines = FRAME_MENU_BAR_LINES (f); +#endif /* Right now, menu bars don't work properly in minibuf-only frames; most of the commands try to apply themselves to the minibuffer - frame itslef, and get an error because you can't switch buffers + frame itself, and get an error because you can't switch buffers in or split the minibuffer window. */ if (FRAME_MINIBUF_ONLY_P (f)) return; @@ -1808,7 +1978,108 @@ x_set_menu_bar_lines (f, value, oldval) FRAME_MENU_BAR_LINES (f) = nlines; x_set_menu_bar_lines_1 (f->root_window, nlines - olines); #endif /* not USE_X_TOOLKIT */ + adjust_glyphs (f); +} + + +/* Set the number of lines used for the tool bar of frame F to VALUE. + VALUE not an integer, or < 0 means set the lines to zero. OLDVAL + is the old number of tool bar lines. This function changes the + height of all windows on frame F to match the new tool bar height. + The frame's height doesn't change. */ + +void +x_set_tool_bar_lines (f, value, oldval) + struct frame *f; + Lisp_Object value, oldval; +{ + int delta, nlines; + + /* Use VALUE only if an integer >= 0. */ + if (INTEGERP (value) && XINT (value) >= 0) + nlines = XFASTINT (value); + else + nlines = 0; + + /* Make sure we redisplay all windows in this frame. */ + ++windows_or_buffers_changed; + + delta = nlines - FRAME_TOOL_BAR_LINES (f); + FRAME_TOOL_BAR_LINES (f) = nlines; + x_set_menu_bar_lines_1 (FRAME_ROOT_WINDOW (f), delta); + adjust_glyphs (f); +} + + +/* Set the foreground color for scroll bars on frame F to VALUE. + VALUE should be a string, a color name. If it isn't a string or + isn't a valid color name, do nothing. OLDVAL is the old value of + the frame parameter. */ + +void +x_set_scroll_bar_foreground (f, value, oldval) + struct frame *f; + Lisp_Object value, oldval; +{ + unsigned long pixel; + + if (STRINGP (value)) + pixel = x_decode_color (f, value, BLACK_PIX_DEFAULT (f)); + else + pixel = -1; + + if (f->output_data.x->scroll_bar_foreground_pixel != -1) + unload_color (f, f->output_data.x->scroll_bar_foreground_pixel); + + f->output_data.x->scroll_bar_foreground_pixel = pixel; + if (FRAME_X_WINDOW (f) && FRAME_VISIBLE_P (f)) + { + /* Remove all scroll bars because they have wrong colors. */ + if (condemn_scroll_bars_hook) + (*condemn_scroll_bars_hook) (f); + if (judge_scroll_bars_hook) + (*judge_scroll_bars_hook) (f); + + update_face_from_frame_parameter (f, Qscroll_bar_foreground, value); + redraw_frame (f); + } +} + + +/* Set the background color for scroll bars on frame F to VALUE VALUE + should be a string, a color name. If it isn't a string or isn't a + valid color name, do nothing. OLDVAL is the old value of the frame + parameter. */ + +void +x_set_scroll_bar_background (f, value, oldval) + struct frame *f; + Lisp_Object value, oldval; +{ + unsigned long pixel; + + if (STRINGP (value)) + pixel = x_decode_color (f, value, WHITE_PIX_DEFAULT (f)); + else + pixel = -1; + + if (f->output_data.x->scroll_bar_background_pixel != -1) + unload_color (f, f->output_data.x->scroll_bar_background_pixel); + + f->output_data.x->scroll_bar_background_pixel = pixel; + if (FRAME_X_WINDOW (f) && FRAME_VISIBLE_P (f)) + { + /* Remove all scroll bars because they have wrong colors. */ + if (condemn_scroll_bars_hook) + (*condemn_scroll_bars_hook) (f); + if (judge_scroll_bars_hook) + (*judge_scroll_bars_hook) (f); + + update_face_from_frame_parameter (f, Qscroll_bar_background, value); + redraw_frame (f); + } } + /* Change the name of frame F to NAME. If NAME is nil, set F's name to x_id_name. @@ -1938,9 +2209,9 @@ x_implicitly_set_name (f, arg, oldval) F->explicit_name is set, ignore the new name; otherwise, set it. */ void -x_set_title (f, name) +x_set_title (f, name, old_name) struct frame *f; - Lisp_Object name; + Lisp_Object name, old_name; { /* Don't change the title if it's already NAME. */ if (EQ (name, f->title)) @@ -2041,6 +2312,7 @@ x_set_vertical_scroll_bars (f, arg, oldval) call x_set_window_size. */ if (FRAME_X_WINDOW (f)) x_set_window_size (f, 0, FRAME_WIDTH (f), FRAME_HEIGHT (f)); + do_pending_window_change (0); } } @@ -2053,15 +2325,24 @@ x_set_scroll_bar_width (f, arg, oldval) if (NILP (arg)) { - /* Make the actual width at least 14 pixels - and a multiple of a character width. */ +#ifdef USE_TOOLKIT_SCROLL_BARS + /* A minimum width of 14 doesn't look good for toolkit scroll bars. */ + int width = 16 + 2 * VERTICAL_SCROLL_BAR_WIDTH_TRIM; + FRAME_SCROLL_BAR_COLS (f) = (width + wid - 1) / wid; + FRAME_SCROLL_BAR_PIXEL_WIDTH (f) = width; +#else + /* Make the actual width at least 14 pixels and a multiple of a + character width. */ FRAME_SCROLL_BAR_COLS (f) = (14 + wid - 1) / wid; - /* Use all of that space (aside from required margins) - for the scroll bar. */ + + /* Use all of that space (aside from required margins) for the + scroll bar. */ FRAME_SCROLL_BAR_PIXEL_WIDTH (f) = 0; +#endif if (FRAME_X_WINDOW (f)) x_set_window_size (f, 0, FRAME_WIDTH (f), FRAME_HEIGHT (f)); + do_pending_window_change (0); } else if (INTEGERP (arg) && XINT (arg) > 0 && XFASTINT (arg) != FRAME_SCROLL_BAR_PIXEL_WIDTH (f)) @@ -2075,9 +2356,12 @@ x_set_scroll_bar_width (f, arg, oldval) x_set_window_size (f, 0, FRAME_WIDTH (f), FRAME_HEIGHT (f)); } - change_frame_size (f, 0, FRAME_WIDTH (f), 0, 0); - FRAME_CURSOR_X (f) = FRAME_LEFT_SCROLL_BAR_WIDTH (f); + change_frame_size (f, 0, FRAME_WIDTH (f), 0, 0, 0); + XWINDOW (FRAME_SELECTED_WINDOW (f))->cursor.hpos = 0; + XWINDOW (FRAME_SELECTED_WINDOW (f))->cursor.x = 0; } + + /* Subroutines of creating an X frame. */ @@ -2087,7 +2371,7 @@ x_set_scroll_bar_width (f, arg, oldval) static void validate_x_resource_name () { - int len; + int len = 0; /* Number of valid characters in the resource name. */ int good_count = 0; /* Number of invalid characters in the resource name. */ @@ -2230,7 +2514,7 @@ and the class is `Emacs.CLASS.SUBCLASS'.") /* Get an X resource, like Fx_get_resource, but for display DPYINFO. */ -static Lisp_Object +Lisp_Object display_x_get_resource (dpyinfo, attribute, class, component, subclass) struct x_display_info *dpyinfo; Lisp_Object attribute, class, component, subclass; @@ -2239,8 +2523,6 @@ display_x_get_resource (dpyinfo, attribute, class, component, subclass) char *name_key; char *class_key; - check_x (); - CHECK_STRING (attribute, 0); CHECK_STRING (class, 0); @@ -2301,9 +2583,9 @@ char * x_get_resource_string (attribute, class) char *attribute, *class; { - register char *value; char *name_key; char *class_key; + struct frame *sf = SELECTED_FRAME (); /* Allocate space for the components, the dots which separate them, and the final '\0'. */ @@ -2317,15 +2599,19 @@ x_get_resource_string (attribute, class) attribute); sprintf (class_key, "%s.%s", EMACS_CLASS, class); - return x_get_string_resource (FRAME_X_DISPLAY_INFO (selected_frame)->xrdb, + return x_get_string_resource (FRAME_X_DISPLAY_INFO (sf)->xrdb, name_key, class_key); } /* Types we might convert a resource string into. */ enum resource_types - { - number, boolean, string, symbol - }; +{ + RES_TYPE_NUMBER, + RES_TYPE_FLOAT, + RES_TYPE_BOOLEAN, + RES_TYPE_STRING, + RES_TYPE_SYMBOL +}; /* Return the value of parameter PARAM. @@ -2366,10 +2652,13 @@ x_get_arg (dpyinfo, alist, param, attribute, class, type) switch (type) { - case number: + case RES_TYPE_NUMBER: return make_number (atoi (XSTRING (tem)->data)); - case boolean: + case RES_TYPE_FLOAT: + return make_float (atof (XSTRING (tem)->data)); + + case RES_TYPE_BOOLEAN: tem = Fdowncase (tem); if (!strcmp (XSTRING (tem)->data, "on") || !strcmp (XSTRING (tem)->data, "true")) @@ -2377,10 +2666,10 @@ x_get_arg (dpyinfo, alist, param, attribute, class, type) else return Qnil; - case string: + case RES_TYPE_STRING: return tem; - case symbol: + case RES_TYPE_SYMBOL: /* As a special case, we map the values `true' and `on' to Qt, and `false' and `off' to Qnil. */ { @@ -2450,6 +2739,62 @@ x_default_parameter (f, alist, prop, deflt, xprop, xclass, type) x_set_frame_parameters (f, Fcons (Fcons (prop, tem), Qnil)); return tem; } + + +/* Record in frame F the specified or default value according to ALIST + of the parameter named PROP (a Lisp symbol). If no value is + specified for PROP, look for an X default for XPROP on the frame + named NAME. If that is not found either, use the value DEFLT. */ + +static Lisp_Object +x_default_scroll_bar_color_parameter (f, alist, prop, xprop, xclass, + foreground_p) + struct frame *f; + Lisp_Object alist; + Lisp_Object prop; + char *xprop; + char *xclass; + int foreground_p; +{ + struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); + Lisp_Object tem; + + tem = x_get_arg (dpyinfo, alist, prop, xprop, xclass, RES_TYPE_STRING); + if (EQ (tem, Qunbound)) + { +#ifdef USE_TOOLKIT_SCROLL_BARS + + /* See if an X resource for the scroll bar color has been + specified. */ + tem = display_x_get_resource (dpyinfo, + build_string (foreground_p + ? "foreground" + : "background"), + build_string (""), + build_string ("verticalScrollBar"), + build_string ("")); + if (!STRINGP (tem)) + { + /* If nothing has been specified, scroll bars will use a + toolkit-dependent default. Because these defaults are + difficult to get at without actually creating a scroll + bar, use nil to indicate that no color has been + specified. */ + tem = Qnil; + } + +#else /* not USE_TOOLKIT_SCROLL_BARS */ + + tem = Qnil; + +#endif /* not USE_TOOLKIT_SCROLL_BARS */ + } + + x_set_frame_parameters (f, Fcons (Fcons (prop, tem), Qnil)); + return tem; +} + + DEFUN ("x-parse-geometry", Fx_parse_geometry, Sx_parse_geometry, 1, 1, 0, "Parse an X-style geometry string STRING.\n\ @@ -2524,8 +2869,6 @@ x_figure_window_size (f, parms) Lisp_Object parms; { register Lisp_Object tem0, tem1, tem2; - int height, width, left, top; - register int geometry; long window_prompting = 0; struct x_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f); @@ -2539,9 +2882,9 @@ x_figure_window_size (f, parms) f->output_data.x->top_pos = 0; f->output_data.x->left_pos = 0; - tem0 = x_get_arg (dpyinfo, parms, Qheight, 0, 0, number); - tem1 = x_get_arg (dpyinfo, parms, Qwidth, 0, 0, number); - tem2 = x_get_arg (dpyinfo, parms, Quser_size, 0, 0, number); + tem0 = x_get_arg (dpyinfo, parms, Qheight, 0, 0, RES_TYPE_NUMBER); + tem1 = x_get_arg (dpyinfo, parms, Qwidth, 0, 0, RES_TYPE_NUMBER); + tem2 = x_get_arg (dpyinfo, parms, Quser_size, 0, 0, RES_TYPE_NUMBER); if (! EQ (tem0, Qunbound) || ! EQ (tem1, Qunbound)) { if (!EQ (tem0, Qunbound)) @@ -2563,15 +2906,15 @@ x_figure_window_size (f, parms) f->output_data.x->vertical_scroll_bar_extra = (!FRAME_HAS_VERTICAL_SCROLL_BARS (f) ? 0 - : FRAME_SCROLL_BAR_PIXEL_WIDTH (f) > 0 - ? FRAME_SCROLL_BAR_PIXEL_WIDTH (f) : (FRAME_SCROLL_BAR_COLS (f) * FONT_WIDTH (f->output_data.x->font))); + f->output_data.x->flags_areas_extra + = FRAME_FLAGS_AREA_WIDTH (f); f->output_data.x->pixel_width = CHAR_TO_PIXEL_WIDTH (f, f->width); f->output_data.x->pixel_height = CHAR_TO_PIXEL_HEIGHT (f, f->height); - tem0 = x_get_arg (dpyinfo, parms, Qtop, 0, 0, number); - tem1 = x_get_arg (dpyinfo, parms, Qleft, 0, 0, number); - tem2 = x_get_arg (dpyinfo, parms, Quser_position, 0, 0, number); + tem0 = x_get_arg (dpyinfo, parms, Qtop, 0, 0, RES_TYPE_NUMBER); + tem1 = x_get_arg (dpyinfo, parms, Qleft, 0, 0, RES_TYPE_NUMBER); + tem2 = x_get_arg (dpyinfo, parms, Quser_position, 0, 0, RES_TYPE_NUMBER); if (! EQ (tem0, Qunbound) || ! EQ (tem1, Qunbound)) { if (EQ (tem0, Qminus)) @@ -2579,18 +2922,18 @@ x_figure_window_size (f, parms) f->output_data.x->top_pos = 0; window_prompting |= YNegative; } - else if (CONSP (tem0) && EQ (XCONS (tem0)->car, Qminus) - && CONSP (XCONS (tem0)->cdr) - && INTEGERP (XCONS (XCONS (tem0)->cdr)->car)) + else if (CONSP (tem0) && EQ (XCAR (tem0), Qminus) + && CONSP (XCDR (tem0)) + && INTEGERP (XCAR (XCDR (tem0)))) { - f->output_data.x->top_pos = - XINT (XCONS (XCONS (tem0)->cdr)->car); + f->output_data.x->top_pos = - XINT (XCAR (XCDR (tem0))); window_prompting |= YNegative; } - else if (CONSP (tem0) && EQ (XCONS (tem0)->car, Qplus) - && CONSP (XCONS (tem0)->cdr) - && INTEGERP (XCONS (XCONS (tem0)->cdr)->car)) + else if (CONSP (tem0) && EQ (XCAR (tem0), Qplus) + && CONSP (XCDR (tem0)) + && INTEGERP (XCAR (XCDR (tem0)))) { - f->output_data.x->top_pos = XINT (XCONS (XCONS (tem0)->cdr)->car); + f->output_data.x->top_pos = XINT (XCAR (XCDR (tem0))); } else if (EQ (tem0, Qunbound)) f->output_data.x->top_pos = 0; @@ -2607,18 +2950,18 @@ x_figure_window_size (f, parms) f->output_data.x->left_pos = 0; window_prompting |= XNegative; } - else if (CONSP (tem1) && EQ (XCONS (tem1)->car, Qminus) - && CONSP (XCONS (tem1)->cdr) - && INTEGERP (XCONS (XCONS (tem1)->cdr)->car)) + else if (CONSP (tem1) && EQ (XCAR (tem1), Qminus) + && CONSP (XCDR (tem1)) + && INTEGERP (XCAR (XCDR (tem1)))) { - f->output_data.x->left_pos = - XINT (XCONS (XCONS (tem1)->cdr)->car); + f->output_data.x->left_pos = - XINT (XCAR (XCDR (tem1))); window_prompting |= XNegative; } - else if (CONSP (tem1) && EQ (XCONS (tem1)->car, Qplus) - && CONSP (XCONS (tem1)->cdr) - && INTEGERP (XCONS (XCONS (tem1)->cdr)->car)) + else if (CONSP (tem1) && EQ (XCAR (tem1), Qplus) + && CONSP (XCDR (tem1)) + && INTEGERP (XCAR (XCDR (tem1)))) { - f->output_data.x->left_pos = XINT (XCONS (XCONS (tem1)->cdr)->car); + f->output_data.x->left_pos = XINT (XCAR (XCDR (tem1))); } else if (EQ (tem1, Qunbound)) f->output_data.x->left_pos = 0; @@ -2718,32 +3061,318 @@ hack_wm_protocols (f, widget) UNBLOCK_INPUT; } #endif + + -#ifdef USE_X_TOOLKIT +/* Support routines for XIC (X Input Context). */ -/* Create and set up the X widget for frame F. */ +#ifdef HAVE_X_I18N -static void -x_window (f, window_prompting, minibuffer_only) +static XFontSet xic_create_xfontset P_ ((struct frame *, char *)); +static XIMStyle best_xim_style P_ ((XIMStyles *, XIMStyles *)); + + +/* Supported XIM styles, ordered by preferenc. */ + +static XIMStyle supported_xim_styles[] = +{ + XIMPreeditPosition | XIMStatusArea, + XIMPreeditPosition | XIMStatusNothing, + XIMPreeditPosition | XIMStatusNone, + XIMPreeditNothing | XIMStatusArea, + XIMPreeditNothing | XIMStatusNothing, + XIMPreeditNothing | XIMStatusNone, + XIMPreeditNone | XIMStatusArea, + XIMPreeditNone | XIMStatusNothing, + XIMPreeditNone | XIMStatusNone, + 0, +}; + + +/* Create an X fontset on frame F with base font name + BASE_FONTNAME.. */ + +static XFontSet +xic_create_xfontset (f, base_fontname) struct frame *f; - long window_prompting; - int minibuffer_only; + char *base_fontname; { - XClassHint class_hints; - XSetWindowAttributes attributes; - unsigned long attribute_mask; + XFontSet xfs; + char **missing_list; + int missing_count; + char *def_string; + + xfs = XCreateFontSet (FRAME_X_DISPLAY (f), + base_fontname, &missing_list, + &missing_count, &def_string); + if (missing_list) + XFreeStringList (missing_list); + + /* No need to free def_string. */ + return xfs; +} - Widget shell_widget; - Widget pane_widget; - Widget frame_widget; - Arg al [25]; - int ac; - BLOCK_INPUT; +/* Value is the best input style, given user preferences USER (already + checked to be supported by Emacs), and styles supported by the + input method XIM. */ - /* Use the resource name as the top-level widget name - for looking up resources. Make a non-Lisp copy - for the window manager, so GC relocation won't bother it. +static XIMStyle +best_xim_style (user, xim) + XIMStyles *user; + XIMStyles *xim; +{ + int i, j; + + for (i = 0; i < user->count_styles; ++i) + for (j = 0; j < xim->count_styles; ++j) + if (user->supported_styles[i] == xim->supported_styles[j]) + return user->supported_styles[i]; + + /* Return the default style. */ + return XIMPreeditNothing | XIMStatusNothing; +} + +/* Create XIC for frame F. */ + +void +create_frame_xic (f) + struct frame *f; +{ +#ifndef X_I18N_INHIBITED + XIM xim; + XIC xic = NULL; + XFontSet xfs = NULL; + static XIMStyle xic_style; + + if (FRAME_XIC (f)) + return; + + xim = FRAME_X_XIM (f); + if (xim) + { + XRectangle s_area; + XPoint spot; + XVaNestedList preedit_attr; + XVaNestedList status_attr; + char *base_fontname; + int fontset; + + s_area.x = 0; s_area.y = 0; s_area.width = 1; s_area.height = 1; + spot.x = 0; spot.y = 1; + /* Create X fontset. */ + fontset = FRAME_FONTSET (f); + if (fontset < 0) + base_fontname = "-*-*-*-r-normal--14-*-*-*-*-*-*-*"; + else + { + struct fontset_info *fontsetp; + int len = 0; + int i; + + fontsetp = FRAME_FONTSET_DATA (f)->fontset_table[fontset]; + for (i = 0; i <= MAX_CHARSET; i++) + if (fontsetp->fontname[i]) + len += strlen (fontsetp->fontname[i]) + 1; + base_fontname = alloca (len); + strcpy (base_fontname, fontsetp->fontname[CHARSET_ASCII]); + for (i = MIN_CHARSET_OFFICIAL_DIMENSION1; i <= MAX_CHARSET; i++) + if (fontsetp->fontname[i]) + { + strcat (base_fontname, ","); + strcat (base_fontname, fontsetp->fontname[i]); + } + } + xfs = xic_create_xfontset (f, base_fontname); + + /* Determine XIC style. */ + if (xic_style == 0) + { + XIMStyles supported_list; + supported_list.count_styles = (sizeof supported_xim_styles + / sizeof supported_xim_styles[0]); + supported_list.supported_styles = supported_xim_styles; + xic_style = best_xim_style (&supported_list, + FRAME_X_XIM_STYLES (f)); + } + + preedit_attr = XVaCreateNestedList (0, + XNFontSet, xfs, + XNForeground, + FRAME_FOREGROUND_PIXEL (f), + XNBackground, + FRAME_BACKGROUND_PIXEL (f), + (xic_style & XIMPreeditPosition + ? XNSpotLocation + : NULL), + &spot, + NULL); + status_attr = XVaCreateNestedList (0, + XNArea, + &s_area, + XNFontSet, + xfs, + XNForeground, + FRAME_FOREGROUND_PIXEL (f), + XNBackground, + FRAME_BACKGROUND_PIXEL (f), + NULL); + + xic = XCreateIC (xim, + XNInputStyle, xic_style, + XNClientWindow, FRAME_X_WINDOW(f), + XNFocusWindow, FRAME_X_WINDOW(f), + XNStatusAttributes, status_attr, + XNPreeditAttributes, preedit_attr, + NULL); + XFree (preedit_attr); + XFree (status_attr); + } + + FRAME_XIC (f) = xic; + FRAME_XIC_STYLE (f) = xic_style; + FRAME_XIC_FONTSET (f) = xfs; +#else /* X_I18N_INHIBITED */ + FRAME_XIC (f) = NULL; + FRAME_XIC_STYLE (f) = 0; + FRAME_XIC_FONTSET (f) = NULL; +#endif /* X_I18N_INHIBITED */ +} + + +/* Destroy XIC and free XIC fontset of frame F, if any. */ + +void +free_frame_xic (f) + struct frame *f; +{ + if (FRAME_XIC (f) == NULL) + return; + + XDestroyIC (FRAME_XIC (f)); + if (FRAME_XIC_FONTSET (f)) + XFreeFontSet (FRAME_X_DISPLAY (f), FRAME_XIC_FONTSET (f)); + + FRAME_XIC (f) = NULL; + FRAME_XIC_FONTSET (f) = NULL; +} + + +/* Place preedit area for XIC of window W's frame to specified + pixel position X/Y. X and Y are relative to window W. */ + +void +xic_set_preeditarea (w, x, y) + struct window *w; + int x, y; +{ + struct frame *f = XFRAME (w->frame); + XVaNestedList attr; + XPoint spot; + + spot.x = WINDOW_TO_FRAME_PIXEL_X (w, x); + spot.y = WINDOW_TO_FRAME_PIXEL_Y (w, y) + FONT_BASE (FRAME_FONT (f)); + attr = XVaCreateNestedList (0, XNSpotLocation, &spot, NULL); + XSetICValues (FRAME_XIC (f), XNPreeditAttributes, attr, NULL); + XFree (attr); +} + + +/* Place status area for XIC in bottom right corner of frame F.. */ + +void +xic_set_statusarea (f) + struct frame *f; +{ + XIC xic = FRAME_XIC (f); + XVaNestedList attr; + XRectangle area; + XRectangle *needed; + + /* Negotiate geometry of status area. If input method has existing + status area, use its current size. */ + area.x = area.y = area.width = area.height = 0; + attr = XVaCreateNestedList (0, XNAreaNeeded, &area, NULL); + XSetICValues (xic, XNStatusAttributes, attr, NULL); + XFree (attr); + + attr = XVaCreateNestedList (0, XNAreaNeeded, &needed, NULL); + XGetICValues (xic, XNStatusAttributes, attr, NULL); + XFree (attr); + + if (needed->width == 0) /* Use XNArea instead of XNAreaNeeded */ + { + attr = XVaCreateNestedList (0, XNArea, &needed, NULL); + XGetICValues (xic, XNStatusAttributes, attr, NULL); + XFree (attr); + } + + area.width = needed->width; + area.height = needed->height; + area.x = PIXEL_WIDTH (f) - area.width - FRAME_INTERNAL_BORDER_WIDTH (f); + area.y = (PIXEL_HEIGHT (f) - area.height + - FRAME_MENUBAR_HEIGHT (f) - FRAME_INTERNAL_BORDER_WIDTH (f)); + XFree (needed); + + attr = XVaCreateNestedList (0, XNArea, &area, NULL); + XSetICValues(xic, XNStatusAttributes, attr, NULL); + XFree (attr); +} + + +/* Set X fontset for XIC of frame F, using base font name + BASE_FONTNAME. Called when a new Emacs fontset is chosen. */ + +void +xic_set_xfontset (f, base_fontname) + struct frame *f; + char *base_fontname; +{ + XVaNestedList attr; + XFontSet xfs; + + xfs = xic_create_xfontset (f, base_fontname); + + attr = XVaCreateNestedList (0, XNFontSet, xfs, NULL); + if (FRAME_XIC_STYLE (f) & XIMPreeditPosition) + XSetICValues (FRAME_XIC (f), XNPreeditAttributes, attr, NULL); + if (FRAME_XIC_STYLE (f) & XIMStatusArea) + XSetICValues (FRAME_XIC (f), XNStatusAttributes, attr, NULL); + XFree (attr); + + if (FRAME_XIC_FONTSET (f)) + XFreeFontSet (FRAME_X_DISPLAY (f), FRAME_XIC_FONTSET (f)); + FRAME_XIC_FONTSET (f) = xfs; +} + +#endif /* HAVE_X_I18N */ + + + +#ifdef USE_X_TOOLKIT + +/* Create and set up the X widget for frame F. */ + +static void +x_window (f, window_prompting, minibuffer_only) + struct frame *f; + long window_prompting; + int minibuffer_only; +{ + XClassHint class_hints; + XSetWindowAttributes attributes; + unsigned long attribute_mask; + Widget shell_widget; + Widget pane_widget; + Widget frame_widget; + Arg al [25]; + int ac; + + BLOCK_INPUT; + + /* Use the resource name as the top-level widget name + for looking up resources. Make a non-Lisp copy + for the window manager, so GC relocation won't bother it. Elsewhere we specify the window name for the window manager. */ @@ -2758,6 +3387,9 @@ x_window (f, window_prompting, minibuffer_only) XtSetArg (al[ac], XtNinput, 1); ac++; XtSetArg (al[ac], XtNmappedWhenManaged, 0); ac++; XtSetArg (al[ac], XtNborderWidth, f->output_data.x->border_width); ac++; + XtSetArg (al[ac], XtNvisual, FRAME_X_VISUAL (f)); ac++; + XtSetArg (al[ac], XtNdepth, FRAME_X_DISPLAY_INFO (f)->n_planes); ac++; + XtSetArg (al[ac], XtNcolormap, FRAME_X_COLORMAP (f)); ac++; shell_widget = XtAppCreateShell (f->namebuf, EMACS_CLASS, applicationShellWidgetClass, FRAME_X_DISPLAY (f), al, ac); @@ -2770,8 +3402,14 @@ x_window (f, window_prompting, minibuffer_only) shell_widget, False, (lw_callback) NULL, (lw_callback) NULL, + (lw_callback) NULL, (lw_callback) NULL); + ac = 0; + XtSetArg (al[ac], XtNvisual, FRAME_X_VISUAL (f)); ac++; + XtSetArg (al[ac], XtNdepth, FRAME_X_DISPLAY_INFO (f)->n_planes); ac++; + XtSetArg (al[ac], XtNcolormap, FRAME_X_COLORMAP (f)); ac++; + XtSetValues (pane_widget, al, ac); f->output_data.x->column_widget = pane_widget; /* mappedWhenManaged to false tells to the paned window to not map/unmap @@ -2783,9 +3421,11 @@ x_window (f, window_prompting, minibuffer_only) XtSetArg (al[ac], XtNallowResize, 1); ac++; XtSetArg (al[ac], XtNresizeToPreferred, 1); ac++; XtSetArg (al[ac], XtNemacsFrame, f); ac++; - frame_widget = XtCreateWidget (f->namebuf, - emacsFrameClass, - pane_widget, al, ac); + XtSetArg (al[ac], XtNvisual, FRAME_X_VISUAL (f)); ac++; + XtSetArg (al[ac], XtNdepth, FRAME_X_DISPLAY_INFO (f)->n_planes); ac++; + XtSetArg (al[ac], XtNcolormap, FRAME_X_COLORMAP (f)); ac++; + frame_widget = XtCreateWidget (f->namebuf, emacsFrameClass, pane_widget, + al, ac); f->output_data.x->edit_widget = frame_widget; @@ -2803,7 +3443,6 @@ x_window (f, window_prompting, minibuffer_only) ? (f->output_data.x->menubar_widget->core.height + f->output_data.x->menubar_widget->core.border_width) : 0); - extern char *lwlib_toolkit_type; #if 0 /* Experimentally, we now get the right results for -geometry -0-0 without this. 24 Aug 96, rms. */ @@ -2876,35 +3515,9 @@ x_window (f, window_prompting, minibuffer_only) XSetClassHint (FRAME_X_DISPLAY (f), XtWindow (shell_widget), &class_hints); #ifdef HAVE_X_I18N -#ifndef X_I18N_INHIBITED - { - XIM xim; - XIC xic = NULL; - - xim = XOpenIM (FRAME_X_DISPLAY (f), NULL, NULL, NULL); - - if (xim) - { - xic = XCreateIC (xim, - XNInputStyle, XIMPreeditNothing | XIMStatusNothing, - XNClientWindow, FRAME_X_WINDOW(f), - XNFocusWindow, FRAME_X_WINDOW(f), - NULL); - - if (xic == 0) - { - XCloseIM (xim); - xim = NULL; - } - } - FRAME_XIM (f) = xim; - FRAME_XIC (f) = xic; - } -#else /* X_I18N_INHIBITED */ - FRAME_XIM (f) = 0; - FRAME_XIC (f) = 0; -#endif /* X_I18N_INHIBITED */ -#endif /* HAVE_X_I18N */ + FRAME_XIC (f) = NULL; + create_frame_xic (f); +#endif f->output_data.x->wm_hints.input = True; f->output_data.x->wm_hints.flags |= InputHint; @@ -2918,7 +3531,7 @@ x_window (f, window_prompting, minibuffer_only) #endif /* Do a stupid property change to force the server to generate a - propertyNotify event so that the event_stream server timestamp will + PropertyNotify event so that the event_stream server timestamp will be initialized to something relevant to the time we created the window. */ XChangeProperty (XtDisplay (frame_widget), XtWindow (frame_widget), @@ -2926,8 +3539,19 @@ x_window (f, window_prompting, minibuffer_only) XA_ATOM, 32, PropModeAppend, (unsigned char*) NULL, 0); - /* Make all the standard events reach the Emacs frame. */ + /* Make all the standard events reach the Emacs frame. */ attributes.event_mask = STANDARD_EVENT_SET; + +#ifdef HAVE_X_I18N + if (FRAME_XIC (f)) + { + /* XIM server might require some X events. */ + unsigned long fevent = NoEventMask; + XGetICValues(FRAME_XIC (f), XNFilterEvents, &fevent, NULL); + attributes.event_mask |= fevent; + } +#endif /* HAVE_X_I18N */ + attribute_mask = CWEventMask; XChangeWindowAttributes (XtDisplay (shell_widget), XtWindow (shell_widget), attribute_mask, &attributes); @@ -2953,12 +3577,9 @@ x_window (f, window_prompting, minibuffer_only) UNBLOCK_INPUT; - if (!minibuffer_only && FRAME_EXTERNAL_MENU_BAR (f)) - initialize_frame_menubar (f); - lw_set_main_areas (pane_widget, f->output_data.x->menubar_widget, frame_widget); - - if (FRAME_X_WINDOW (f) == 0) - error ("Unable to create window"); + /* This is a no-op, except under Motif. Make sure main areas are + set to something reasonable, in case we get an error later. */ + lw_set_main_areas (pane_widget, 0, frame_widget); } #else /* not USE_X_TOOLKIT */ @@ -2980,11 +3601,9 @@ x_window (f) attributes.backing_store = NotUseful; attributes.save_under = True; attributes.event_mask = STANDARD_EVENT_SET; - attribute_mask = (CWBackPixel | CWBorderPixel | CWBitGravity -#if 0 - | CWBackingStore | CWSaveUnder -#endif - | CWEventMask); + attributes.colormap = FRAME_X_COLORMAP (f); + attribute_mask = (CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask + | CWColormap); BLOCK_INPUT; FRAME_X_WINDOW (f) @@ -2998,38 +3617,21 @@ x_window (f) InputOutput, /* class */ FRAME_X_DISPLAY_INFO (f)->visual, attribute_mask, &attributes); -#ifdef HAVE_X_I18N -#ifndef X_I18N_INHIBITED - { - XIM xim; - XIC xic = NULL; - - xim = XOpenIM (FRAME_X_DISPLAY(f), NULL, NULL, NULL); - - if (xim) - { - xic = XCreateIC (xim, - XNInputStyle, XIMPreeditNothing | XIMStatusNothing, - XNClientWindow, FRAME_X_WINDOW(f), - XNFocusWindow, FRAME_X_WINDOW(f), - NULL); - - if (!xic) - { - XCloseIM (xim); - xim = NULL; - } - } - FRAME_XIM (f) = xim; - FRAME_XIC (f) = xic; - } -#else /* X_I18N_INHIBITED */ - FRAME_XIM (f) = 0; - FRAME_XIC (f) = 0; -#endif /* X_I18N_INHIBITED */ +#ifdef HAVE_X_I18N + create_frame_xic (f); + if (FRAME_XIC (f)) + { + /* XIM server might require some X events. */ + unsigned long fevent = NoEventMask; + XGetICValues(FRAME_XIC (f), XNFilterEvents, &fevent, NULL); + attributes.event_mask |= fevent; + attribute_mask = CWEventMask; + XChangeWindowAttributes (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), + attribute_mask, &attributes); + } #endif /* HAVE_X_I18N */ - + validate_x_resource_name (); class_hints.res_name = (char *) XSTRING (Vx_resource_name)->data; @@ -3098,8 +3700,8 @@ x_icon (f, parms) /* Set the position of the icon. Note that twm groups all icons in an icon window. */ - icon_x = x_get_and_record_arg (f, parms, Qicon_left, 0, 0, number); - icon_y = x_get_and_record_arg (f, parms, Qicon_top, 0, 0, number); + icon_x = x_get_and_record_arg (f, parms, Qicon_left, 0, 0, RES_TYPE_NUMBER); + icon_y = x_get_and_record_arg (f, parms, Qicon_top, 0, 0, RES_TYPE_NUMBER); if (!EQ (icon_x, Qunbound) && !EQ (icon_y, Qunbound)) { CHECK_NUMBER (icon_x, 0); @@ -3115,7 +3717,8 @@ x_icon (f, parms) /* Start up iconic or window? */ x_wm_set_window_state - (f, (EQ (x_get_arg (dpyinfo, parms, Qvisibility, 0, 0, symbol), Qicon) + (f, (EQ (x_get_arg (dpyinfo, parms, Qvisibility, 0, 0, RES_TYPE_SYMBOL), + Qicon) ? IconicState : NormalState)); @@ -3143,8 +3746,6 @@ x_make_gc (f) struct frame *f; { XGCValues gc_values; - GC temp_gc; - XImage tileimage; BLOCK_INPUT; @@ -3185,6 +3786,10 @@ x_make_gc (f) | GCFillStyle /* | GCStipple */ | GCLineWidth), &gc_values); + /* Reliefs. */ + f->output_data.x->white_relief.gc = 0; + f->output_data.x->black_relief.gc = 0; + /* Create the gray border tile used when the pointer is not in the frame. Since this depends on the frame's pixel values, this must be done on a per-frame basis. */ @@ -3223,7 +3828,7 @@ This function is an internal primitive--use `make-frame' instead.") int count = specpdl_ptr - specpdl; struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; Lisp_Object display; - struct x_display_info *dpyinfo; + struct x_display_info *dpyinfo = NULL; Lisp_Object parent; struct kboard *kb; @@ -3233,7 +3838,7 @@ This function is an internal primitive--use `make-frame' instead.") until we know if this frame has a specified name. */ Vx_resource_name = Vinvocation_name; - display = x_get_arg (dpyinfo, parms, Qdisplay, 0, 0, string); + display = x_get_arg (dpyinfo, parms, Qdisplay, 0, 0, RES_TYPE_STRING); if (EQ (display, Qunbound)) display = Qnil; dpyinfo = check_x_display_info (display); @@ -3243,7 +3848,7 @@ This function is an internal primitive--use `make-frame' instead.") kb = &the_only_kboard; #endif - name = x_get_arg (dpyinfo, parms, Qname, "name", "Name", string); + name = x_get_arg (dpyinfo, parms, Qname, "name", "Name", RES_TYPE_STRING); if (!STRINGP (name) && ! EQ (name, Qunbound) && ! NILP (name)) @@ -3253,7 +3858,7 @@ This function is an internal primitive--use `make-frame' instead.") Vx_resource_name = name; /* See if parent window is specified. */ - parent = x_get_arg (dpyinfo, parms, Qparent_id, NULL, NULL, number); + parent = x_get_arg (dpyinfo, parms, Qparent_id, NULL, NULL, RES_TYPE_NUMBER); if (EQ (parent, Qunbound)) parent = Qnil; if (! NILP (parent)) @@ -3264,7 +3869,8 @@ This function is an internal primitive--use `make-frame' instead.") it to make_frame_without_minibuffer. */ frame = Qnil; GCPRO4 (parms, parent, name, frame); - tem = x_get_arg (dpyinfo, parms, Qminibuffer, "minibuffer", "Minibuffer", symbol); + tem = x_get_arg (dpyinfo, parms, Qminibuffer, "minibuffer", "Minibuffer", + RES_TYPE_SYMBOL); if (EQ (tem, Qnone) || NILP (tem)) f = make_frame_without_minibuffer (Qnil, kb, display); else if (EQ (tem, Qonly)) @@ -3287,9 +3893,12 @@ This function is an internal primitive--use `make-frame' instead.") bzero (f->output_data.x, sizeof (struct x_output)); f->output_data.x->icon_bitmap = -1; f->output_data.x->fontset = -1; + f->output_data.x->scroll_bar_foreground_pixel = -1; + f->output_data.x->scroll_bar_background_pixel = -1; f->icon_name - = x_get_arg (dpyinfo, parms, Qicon_name, "iconName", "Title", string); + = x_get_arg (dpyinfo, parms, Qicon_name, "iconName", "Title", + RES_TYPE_STRING); if (! STRINGP (f->icon_name)) f->icon_name = Qnil; @@ -3298,6 +3907,29 @@ This function is an internal primitive--use `make-frame' instead.") FRAME_KBOARD (f) = kb; #endif + /* These colors will be set anyway later, but it's important + to get the color reference counts right, so initialize them! */ + { + Lisp_Object black; + struct gcpro gcpro1; + + black = build_string ("black"); + GCPRO1 (black); + f->output_data.x->foreground_pixel + = x_decode_color (f, black, BLACK_PIX_DEFAULT (f)); + f->output_data.x->background_pixel + = x_decode_color (f, black, BLACK_PIX_DEFAULT (f)); + f->output_data.x->cursor_pixel + = x_decode_color (f, black, BLACK_PIX_DEFAULT (f)); + f->output_data.x->cursor_foreground_pixel + = x_decode_color (f, black, BLACK_PIX_DEFAULT (f)); + f->output_data.x->border_pixel + = x_decode_color (f, black, BLACK_PIX_DEFAULT (f)); + f->output_data.x->mouse_pixel + = x_decode_color (f, black, BLACK_PIX_DEFAULT (f)); + UNGCPRO; + } + /* Specify the parent under which to make this X window. */ if (!NILP (parent)) @@ -3311,9 +3943,6 @@ This function is an internal primitive--use `make-frame' instead.") f->output_data.x->explicit_parent = 0; } - /* Note that the frame has no physical cursor right now. */ - f->phys_cursor_x = -1; - /* Set the name; the functions to which we pass f expect the name to be set. */ if (EQ (name, Qunbound) || NILP (name)) @@ -3330,15 +3959,15 @@ This function is an internal primitive--use `make-frame' instead.") } /* Create fontsets from `global_fontset_alist' before handling fonts. */ - for (tem = Vglobal_fontset_alist; CONSP (tem); tem = XCONS (tem)->cdr) - fs_register_fontset (f, XCONS (tem)->car); + for (tem = Vglobal_fontset_alist; CONSP (tem); tem = XCDR (tem)) + fs_register_fontset (f, XCAR (tem)); /* Extract the window parameters from the supplied values that are needed to determine window geometry. */ { Lisp_Object font; - font = x_get_arg (dpyinfo, parms, Qfont, "font", "Font", string); + font = x_get_arg (dpyinfo, parms, Qfont, "font", "Font", RES_TYPE_STRING); BLOCK_INPUT; /* First, try whatever font the caller has specified. */ @@ -3350,7 +3979,10 @@ This function is an internal primitive--use `make-frame' instead.") else font = x_new_font (f, XSTRING (font)->data); } + /* Try out a font which we hope has bold and italic variations. */ + if (!STRINGP (font)) + font = x_new_font (f, "-adobe-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-1"); if (!STRINGP (font)) font = x_new_font (f, "-misc-fixed-medium-r-normal-*-*-140-*-*-c-*-iso8859-1"); if (! STRINGP (font)) @@ -3367,7 +3999,7 @@ This function is an internal primitive--use `make-frame' instead.") font = build_string ("fixed"); x_default_parameter (f, parms, Qfont, font, - "font", "Font", string); + "font", "Font", RES_TYPE_STRING); } #ifdef USE_LUCID @@ -3377,7 +4009,8 @@ This function is an internal primitive--use `make-frame' instead.") #endif x_default_parameter (f, parms, Qborder_width, make_number (2), - "borderWidth", "BorderWidth", number); + "borderWidth", "BorderWidth", RES_TYPE_NUMBER); + /* This defaults to 2 in order to match xterm. We recognize either internalBorderWidth or internalBorder (which is what xterm calls it). */ @@ -3386,36 +4019,56 @@ This function is an internal primitive--use `make-frame' instead.") Lisp_Object value; value = x_get_arg (dpyinfo, parms, Qinternal_border_width, - "internalBorder", "internalBorder", number); + "internalBorder", "internalBorder", RES_TYPE_NUMBER); if (! EQ (value, Qunbound)) parms = Fcons (Fcons (Qinternal_border_width, value), parms); } x_default_parameter (f, parms, Qinternal_border_width, make_number (1), - "internalBorderWidth", "internalBorderWidth", number); + "internalBorderWidth", "internalBorderWidth", + RES_TYPE_NUMBER); x_default_parameter (f, parms, Qvertical_scroll_bars, Qleft, - "verticalScrollBars", "ScrollBars", symbol); + "verticalScrollBars", "ScrollBars", + RES_TYPE_SYMBOL); /* Also do the stuff which must be set before the window exists. */ x_default_parameter (f, parms, Qforeground_color, build_string ("black"), - "foreground", "Foreground", string); + "foreground", "Foreground", RES_TYPE_STRING); x_default_parameter (f, parms, Qbackground_color, build_string ("white"), - "background", "Background", string); + "background", "Background", RES_TYPE_STRING); x_default_parameter (f, parms, Qmouse_color, build_string ("black"), - "pointerColor", "Foreground", string); + "pointerColor", "Foreground", RES_TYPE_STRING); x_default_parameter (f, parms, Qcursor_color, build_string ("black"), - "cursorColor", "Foreground", string); + "cursorColor", "Foreground", RES_TYPE_STRING); x_default_parameter (f, parms, Qborder_color, build_string ("black"), - "borderColor", "BorderColor", string); - + "borderColor", "BorderColor", RES_TYPE_STRING); + x_default_parameter (f, parms, Qscreen_gamma, Qnil, + "screenGamma", "ScreenGamma", RES_TYPE_FLOAT); + + x_default_scroll_bar_color_parameter (f, parms, Qscroll_bar_foreground, + "scrollBarForeground", + "ScrollBarForeground", 1); + x_default_scroll_bar_color_parameter (f, parms, Qscroll_bar_background, + "scrollBarBackground", + "ScrollBarBackground", 0); + + /* Init faces before x_default_parameter is called for scroll-bar + parameters because that function calls x_set_scroll_bar_width, + which calls change_frame_size, which calls Fset_window_buffer, + which runs hooks, which call Fvertical_motion. At the end, we + end up in init_iterator with a null face cache, which should not + happen. */ + init_frame_faces (f); + x_default_parameter (f, parms, Qmenu_bar_lines, make_number (1), - "menuBar", "MenuBar", number); - x_default_parameter (f, parms, Qscroll_bar_width, Qnil, - "scrollBarWidth", "ScrollBarWidth", number); + "menuBar", "MenuBar", RES_TYPE_NUMBER); + x_default_parameter (f, parms, Qtool_bar_lines, make_number (0), + "toolBar", "ToolBar", RES_TYPE_NUMBER); x_default_parameter (f, parms, Qbuffer_predicate, Qnil, - "bufferPredicate", "BufferPredicate", symbol); + "bufferPredicate", "BufferPredicate", + RES_TYPE_SYMBOL); x_default_parameter (f, parms, Qtitle, Qnil, - "title", "Title", string); + "title", "Title", RES_TYPE_STRING); f->output_data.x->parent_desc = FRAME_X_DISPLAY_INFO (f)->root_window; window_prompting = x_figure_window_size (f, parms); @@ -3437,26 +4090,44 @@ This function is an internal primitive--use `make-frame' instead.") f->output_data.x->size_hint_flags = window_prompting; + tem = x_get_arg (dpyinfo, parms, Qunsplittable, 0, 0, RES_TYPE_BOOLEAN); + f->no_split = minibuffer_only || EQ (tem, Qt); + + /* Create the X widget or window. Add the tool-bar height to the + initial frame height so that the user gets a text display area of + the size he specified with -g or via .Xdefaults. Later changes + of the tool-bar height don't change the frame size. This is done + so that users can create tall Emacs frames without having to + guess how tall the tool-bar will get. */ + f->height += FRAME_TOOL_BAR_LINES (f); + #ifdef USE_X_TOOLKIT x_window (f, window_prompting, minibuffer_only); #else x_window (f); #endif + x_icon (f, parms); x_make_gc (f); - init_frame_faces (f); + + /* Now consider the frame official. */ + FRAME_X_DISPLAY_INFO (f)->reference_count++; + Vframe_list = Fcons (frame, Vframe_list); /* We need to do this after creating the X window, so that the icon-creation functions can say whose icon they're describing. */ x_default_parameter (f, parms, Qicon_type, Qnil, - "bitmapIcon", "BitmapIcon", symbol); + "bitmapIcon", "BitmapIcon", RES_TYPE_SYMBOL); x_default_parameter (f, parms, Qauto_raise, Qnil, - "autoRaise", "AutoRaiseLower", boolean); + "autoRaise", "AutoRaiseLower", RES_TYPE_BOOLEAN); x_default_parameter (f, parms, Qauto_lower, Qnil, - "autoLower", "AutoRaiseLower", boolean); + "autoLower", "AutoRaiseLower", RES_TYPE_BOOLEAN); x_default_parameter (f, parms, Qcursor_type, Qbox, - "cursorType", "CursorType", symbol); + "cursorType", "CursorType", RES_TYPE_SYMBOL); + x_default_parameter (f, parms, Qscroll_bar_width, Qnil, + "scrollBarWidth", "ScrollBarWidth", + RES_TYPE_NUMBER); /* Dimensions, especially f->height, must be done via change_frame_size. Change will not be effected unless different from the current @@ -3465,37 +4136,43 @@ This function is an internal primitive--use `make-frame' instead.") height = f->height; f->height = 0; SET_FRAME_WIDTH (f, 0); - change_frame_size (f, height, width, 1, 0); + change_frame_size (f, height, width, 1, 0, 0); - /* Tell the server what size and position, etc, we want, - and how badly we want them. */ + /* Set up faces after all frame parameters are known. */ + call1 (Qface_set_after_frame_default, frame); + +#ifdef USE_X_TOOLKIT + /* Create the menu bar. */ + if (!minibuffer_only && FRAME_EXTERNAL_MENU_BAR (f)) + { + /* If this signals an error, we haven't set size hints for the + frame and we didn't make it visible. */ + initialize_frame_menubar (f); + + /* This is a no-op, except under Motif where it arranges the + main window for the widgets on it. */ + lw_set_main_areas (f->output_data.x->column_widget, + f->output_data.x->menubar_widget, + f->output_data.x->edit_widget); + } +#endif /* USE_X_TOOLKIT */ + + /* Tell the server what size and position, etc, we want, and how + badly we want them. This should be done after we have the menu + bar so that its size can be taken into account. */ BLOCK_INPUT; x_wm_set_size_hint (f, window_prompting, 0); UNBLOCK_INPUT; - tem = x_get_arg (dpyinfo, parms, Qunsplittable, 0, 0, boolean); - f->no_split = minibuffer_only || EQ (tem, Qt); - - UNGCPRO; - - /* It is now ok to make the frame official - even if we get an error below. - And the frame needs to be on Vframe_list - or making it visible won't work. */ - Vframe_list = Fcons (frame, Vframe_list); - - /* Now that the frame is official, it counts as a reference to - its display. */ - FRAME_X_DISPLAY_INFO (f)->reference_count++; - - /* Make the window appear on the frame and enable display, - unless the caller says not to. However, with explicit parent, - Emacs cannot control visibility, so don't try. */ + /* Make the window appear on the frame and enable display, unless + the caller says not to. However, with explicit parent, Emacs + cannot control visibility, so don't try. */ if (! f->output_data.x->explicit_parent) { Lisp_Object visibility; - visibility = x_get_arg (dpyinfo, parms, Qvisibility, 0, 0, symbol); + visibility = x_get_arg (dpyinfo, parms, Qvisibility, 0, 0, + RES_TYPE_SYMBOL); if (EQ (visibility, Qunbound)) visibility = Qt; @@ -3508,6 +4185,7 @@ This function is an internal primitive--use `make-frame' instead.") ; } + UNGCPRO; return unbind_to (count, frame); } @@ -3527,306 +4205,84 @@ x_get_focus_frame (frame) XSETFRAME (xfocus, dpyinfo->x_focus_frame); return xfocus; } + -#if 1 -#include "x-list-font.c" -#else -DEFUN ("x-list-fonts", Fx_list_fonts, Sx_list_fonts, 1, 4, 0, - "Return a list of the names of available fonts matching PATTERN.\n\ -If optional arguments FACE and FRAME are specified, return only fonts\n\ -the same size as FACE on FRAME.\n\ -\n\ -PATTERN is a string, perhaps with wildcard characters;\n\ - the * character matches any substring, and\n\ - the ? character matches any single character.\n\ - PATTERN is case-insensitive.\n\ -FACE is a face name--a symbol.\n\ -\n\ -The return value is a list of strings, suitable as arguments to\n\ -set-face-font.\n\ -\n\ -Fonts Emacs can't use (i.e. proportional fonts) may or may not be excluded\n\ -even if they match PATTERN and FACE.\n\ -\n\ -The optional fourth argument MAXIMUM sets a limit on how many\n\ -fonts to match. The first MAXIMUM fonts are reported.") - (pattern, face, frame, maximum) - Lisp_Object pattern, face, frame, maximum; -{ - int num_fonts; - char **names; -#ifndef BROKEN_XLISTFONTSWITHINFO - XFontStruct *info; -#endif - XFontStruct *size_ref; - Lisp_Object list; - FRAME_PTR f; - Lisp_Object key; - int maxnames; - int count; +DEFUN ("xw-color-defined-p", Fxw_color_defined_p, Sxw_color_defined_p, 1, 2, 0, + "Internal function called by `color-defined-p', which see.") + (color, frame) + Lisp_Object color, frame; +{ + XColor foo; + FRAME_PTR f = check_x_frame (frame); - check_x (); - CHECK_STRING (pattern, 0); - if (!NILP (face)) - CHECK_SYMBOL (face, 1); + CHECK_STRING (color, 1); - if (NILP (maximum)) - maxnames = 2000; + if (x_defined_color (f, XSTRING (color)->data, &foo, 0)) + return Qt; else - { - CHECK_NATNUM (maximum, 0); - maxnames = XINT (maximum); - } + return Qnil; +} - f = check_x_frame (frame); +DEFUN ("xw-color-values", Fxw_color_values, Sxw_color_values, 1, 2, 0, + "Internal function called by `color-values', which see.") + (color, frame) + Lisp_Object color, frame; +{ + XColor foo; + FRAME_PTR f = check_x_frame (frame); - /* Determine the width standard for comparison with the fonts we find. */ + CHECK_STRING (color, 1); - if (NILP (face)) - size_ref = 0; - else + if (x_defined_color (f, XSTRING (color)->data, &foo, 0)) { - int face_id; - - /* Don't die if we get called with a terminal frame. */ - if (! FRAME_X_P (f)) - error ("Non-X frame used in `x-list-fonts'"); - - face_id = face_name_id_number (f, face); + Lisp_Object rgb[3]; - if (face_id < 0 || face_id >= FRAME_N_PARAM_FACES (f) - || FRAME_PARAM_FACES (f) [face_id] == 0) - size_ref = f->output_data.x->font; - else - { - size_ref = FRAME_PARAM_FACES (f) [face_id]->font; - if (size_ref == (XFontStruct *) (~0)) - size_ref = f->output_data.x->font; - } + rgb[0] = make_number (foo.red); + rgb[1] = make_number (foo.green); + rgb[2] = make_number (foo.blue); + return Flist (3, rgb); } + else + return Qnil; +} - /* See if we cached the result for this particular query. */ - key = Fcons (pattern, maximum); - list = Fassoc (key, - XCONS (FRAME_X_DISPLAY_INFO (f)->name_list_element)->cdr); - - /* We have info in the cache for this PATTERN. */ - if (!NILP (list)) - { - Lisp_Object tem, newlist; +DEFUN ("xw-display-color-p", Fxw_display_color_p, Sxw_display_color_p, 0, 1, 0, + "Internal function called by `display-color-p', which see.") + (display) + Lisp_Object display; +{ + struct x_display_info *dpyinfo = check_x_display_info (display); - /* We have info about this pattern. */ - list = XCONS (list)->cdr; + if (dpyinfo->n_planes <= 2) + return Qnil; - if (size_ref == 0) - return list; + switch (dpyinfo->visual->class) + { + case StaticColor: + case PseudoColor: + case TrueColor: + case DirectColor: + return Qt; - BLOCK_INPUT; + default: + return Qnil; + } +} - /* Filter the cached info and return just the fonts that match FACE. */ - newlist = Qnil; - for (tem = list; CONSP (tem); tem = XCONS (tem)->cdr) - { - XFontStruct *thisinfo; +DEFUN ("x-display-grayscale-p", Fx_display_grayscale_p, Sx_display_grayscale_p, + 0, 1, 0, + "Return t if the X display supports shades of gray.\n\ +Note that color displays do support shades of gray.\n\ +The optional argument DISPLAY specifies which display to ask about.\n\ +DISPLAY should be either a frame or a display name (a string).\n\ +If omitted or nil, that stands for the selected frame's display.") + (display) + Lisp_Object display; +{ + struct x_display_info *dpyinfo = check_x_display_info (display); - count = x_catch_errors (FRAME_X_DISPLAY (f)); - - thisinfo = XLoadQueryFont (FRAME_X_DISPLAY (f), - XSTRING (XCONS (tem)->car)->data); - - x_check_errors (FRAME_X_DISPLAY (f), "XLoadQueryFont failure: %s"); - x_uncatch_errors (FRAME_X_DISPLAY (f), count); - - if (thisinfo && same_size_fonts (thisinfo, size_ref)) - newlist = Fcons (XCONS (tem)->car, newlist); - - if (thisinfo != 0) - XFreeFont (FRAME_X_DISPLAY (f), thisinfo); - } - - UNBLOCK_INPUT; - - return newlist; - } - - BLOCK_INPUT; - - count = x_catch_errors (FRAME_X_DISPLAY (f)); - - /* Solaris 2.3 has a bug in XListFontsWithInfo. */ -#ifndef BROKEN_XLISTFONTSWITHINFO - if (size_ref) - names = XListFontsWithInfo (FRAME_X_DISPLAY (f), - XSTRING (pattern)->data, - maxnames, - &num_fonts, /* count_return */ - &info); /* info_return */ - else -#endif - names = XListFonts (FRAME_X_DISPLAY (f), - XSTRING (pattern)->data, - maxnames, - &num_fonts); /* count_return */ - - x_check_errors (FRAME_X_DISPLAY (f), "XListFonts failure: %s"); - x_uncatch_errors (FRAME_X_DISPLAY (f), count); - - UNBLOCK_INPUT; - - list = Qnil; - - if (names) - { - int i; - Lisp_Object full_list; - - /* Make a list of all the fonts we got back. - Store that in the font cache for the display. */ - full_list = Qnil; - for (i = 0; i < num_fonts; i++) - full_list = Fcons (build_string (names[i]), full_list); - XCONS (FRAME_X_DISPLAY_INFO (f)->name_list_element)->cdr - = Fcons (Fcons (key, full_list), - XCONS (FRAME_X_DISPLAY_INFO (f)->name_list_element)->cdr); - - /* Make a list of the fonts that have the right width. */ - list = Qnil; - for (i = 0; i < num_fonts; i++) - { - int keeper; - - if (!size_ref) - keeper = 1; - else - { -#ifdef BROKEN_XLISTFONTSWITHINFO - XFontStruct *thisinfo; - - BLOCK_INPUT; - - count = x_catch_errors (FRAME_X_DISPLAY (f)); - thisinfo = XLoadQueryFont (FRAME_X_DISPLAY (f), names[i]); - x_check_errors (FRAME_X_DISPLAY (f), - "XLoadQueryFont failure: %s"); - x_uncatch_errors (FRAME_X_DISPLAY (f), count); - - UNBLOCK_INPUT; - - keeper = thisinfo && same_size_fonts (thisinfo, size_ref); - BLOCK_INPUT; - if (thisinfo && ! keeper) - XFreeFont (FRAME_X_DISPLAY (f), thisinfo); - else if (thisinfo) - XFreeFontInfo (NULL, thisinfo, 1); - UNBLOCK_INPUT; -#else - keeper = same_size_fonts (&info[i], size_ref); -#endif - } - if (keeper) - list = Fcons (build_string (names[i]), list); - } - list = Fnreverse (list); - - BLOCK_INPUT; -#ifndef BROKEN_XLISTFONTSWITHINFO - if (size_ref) - XFreeFontInfo (names, info, num_fonts); - else -#endif - XFreeFontNames (names); - UNBLOCK_INPUT; - } - - return list; -} -#endif - - -DEFUN ("x-color-defined-p", Fx_color_defined_p, Sx_color_defined_p, 1, 2, 0, - "Return non-nil if color COLOR is supported on frame FRAME.\n\ -If FRAME is omitted or nil, use the selected frame.") - (color, frame) - Lisp_Object color, frame; -{ - XColor foo; - FRAME_PTR f = check_x_frame (frame); - - CHECK_STRING (color, 1); - - if (defined_color (f, XSTRING (color)->data, &foo, 0)) - return Qt; - else - return Qnil; -} - -DEFUN ("x-color-values", Fx_color_values, Sx_color_values, 1, 2, 0, - "Return a description of the color named COLOR on frame FRAME.\n\ -The value is a list of integer RGB values--(RED GREEN BLUE).\n\ -These values appear to range from 0 to 65280 or 65535, depending\n\ -on the system; white is (65280 65280 65280) or (65535 65535 65535).\n\ -If FRAME is omitted or nil, use the selected frame.") - (color, frame) - Lisp_Object color, frame; -{ - XColor foo; - FRAME_PTR f = check_x_frame (frame); - - CHECK_STRING (color, 1); - - if (defined_color (f, XSTRING (color)->data, &foo, 0)) - { - Lisp_Object rgb[3]; - - rgb[0] = make_number (foo.red); - rgb[1] = make_number (foo.green); - rgb[2] = make_number (foo.blue); - return Flist (3, rgb); - } - else - return Qnil; -} - -DEFUN ("x-display-color-p", Fx_display_color_p, Sx_display_color_p, 0, 1, 0, - "Return t if the X display supports color.\n\ -The optional argument DISPLAY specifies which display to ask about.\n\ -DISPLAY should be either a frame or a display name (a string).\n\ -If omitted or nil, that stands for the selected frame's display.") - (display) - Lisp_Object display; -{ - struct x_display_info *dpyinfo = check_x_display_info (display); - - if (dpyinfo->n_planes <= 2) - return Qnil; - - switch (dpyinfo->visual->class) - { - case StaticColor: - case PseudoColor: - case TrueColor: - case DirectColor: - return Qt; - - default: - return Qnil; - } -} - -DEFUN ("x-display-grayscale-p", Fx_display_grayscale_p, Sx_display_grayscale_p, - 0, 1, 0, - "Return t if the X display supports shades of gray.\n\ -Note that color displays do support shades of gray.\n\ -The optional argument DISPLAY specifies which display to ask about.\n\ -DISPLAY should be either a frame or a display name (a string).\n\ -If omitted or nil, that stands for the selected frame's display.") - (display) - Lisp_Object display; -{ - struct x_display_info *dpyinfo = check_x_display_info (display); - - if (dpyinfo->n_planes <= 1) - return Qnil; + if (dpyinfo->n_planes <= 1) + return Qnil; switch (dpyinfo->visual->class) { @@ -4316,6 +4772,7 @@ selected frame.") { register int x0, y0, x1, y1; register struct frame *f = selected_frame; + struct window *w = XWINDOW (FRAME_SELECTED_WINDOW (f)); register int p1, p2; CHECK_CONS (event, 0); @@ -4327,8 +4784,9 @@ selected frame.") /* If the mouse is past the end of the line, don't that area. */ /* ReWrite this... */ - x1 = f->cursor_x; - y1 = f->cursor_y; + /* Where the cursor is. */ + x1 = WINDOW_TO_FRAME_PIXEL_X (w, w->cursor.x); + y1 = WINDOW_TO_FRAME_PIXEL_Y (w, w->cursor.y); if (y1 > y0) /* point below mouse */ outline_region (f, f->output_data.x->cursor_gc, @@ -4360,12 +4818,13 @@ at X, Y on the selected frame.") { register int x0, y0, x1, y1; register struct frame *f = selected_frame; + struct window *w = XWINDOW (FRAME_SELECTED_WINDOW (f)); BLOCK_INPUT; x0 = XINT (Fcar (Fcar (event))); y0 = XINT (Fcar (Fcdr (Fcar (event)))); - x1 = f->cursor_x; - y1 = f->cursor_y; + x1 = WINDOW_TO_FRAME_PIXEL_X (w, w->cursor.x); + y1 = WINDOW_TO_FRAME_PIXEL_Y (w, w->cursor.y); if (y1 > y0) /* point below mouse */ outline_region (f, f->output_data.x->reverse_gc, @@ -4468,8 +4927,9 @@ DEFUN ("x-select-region", Fx_select_region, Sx_select_region, 1, 1, "e", Lisp_Object event; { register struct frame *f = selected_frame; - register int point_x = f->cursor_x; - register int point_y = f->cursor_y; + struct window *w = XWINDOW (FRAME_SELECTED_WINDOW (f)); + register int point_x = WINDOW_TO_FRAME_PIXEL_X (w, w->cursor.x); + register int point_y = WINDOW_TO_FRAME_PIXEL_Y (w, w->cursor.y); register int mouse_below_point; register Lisp_Object obj; register int x_contour_x, x_contour_y; @@ -4998,71 +5458,145 @@ See the documentation of `x-rebind-key' for more information.") } #endif /* HAVE_X11 */ #endif /* 0 */ + +/************************************************************************ + X Displays + ************************************************************************/ + + +/* Mapping visual names to visuals. */ + +static struct visual_class +{ + char *name; + int class; +} +visual_classes[] = +{ + {"StaticGray", StaticGray}, + {"GrayScale", GrayScale}, + {"StaticColor", StaticColor}, + {"PseudoColor", PseudoColor}, + {"TrueColor", TrueColor}, + {"DirectColor", DirectColor}, + NULL +}; + + #ifndef HAVE_XSCREENNUMBEROFSCREEN + +/* Value is the screen number of screen SCR. This is a substitute for + the X function with the same name when that doesn't exist. */ + int XScreenNumberOfScreen (scr) register Screen *scr; { - register Display *dpy; - register Screen *dpyscr; - register int i; - - dpy = scr->display; - dpyscr = dpy->screens; + Display *dpy = scr->display; + int i; - for (i = 0; i < dpy->nscreens; i++, dpyscr++) - if (scr == dpyscr) - return i; + for (i = 0; i < dpy->nscreens; ++i) + if (scr == dpy->screens[i]) + break; - return -1; + return i; } + #endif /* not HAVE_XSCREENNUMBEROFSCREEN */ -Visual * -select_visual (dpy, screen, depth) - Display *dpy; - Screen *screen; - unsigned int *depth; -{ - Visual *v; - XVisualInfo *vinfo, vinfo_template; - int n_visuals; - v = DefaultVisualOfScreen (screen); +/* Select the visual that should be used on display DPYINFO. Set + members of DPYINFO appropriately. Called from x_term_init. */ -#ifdef HAVE_X11R4 - vinfo_template.visualid = XVisualIDFromVisual (v); -#else - vinfo_template.visualid = v->visualid; -#endif +void +select_visual (dpyinfo) + struct x_display_info *dpyinfo; +{ + Display *dpy = dpyinfo->display; + Screen *screen = dpyinfo->screen; + Lisp_Object value; - vinfo_template.screen = XScreenNumberOfScreen (screen); + /* See if a visual is specified. */ + value = display_x_get_resource (dpyinfo, + build_string ("visualClass"), + build_string ("VisualClass"), + Qnil, Qnil); + if (STRINGP (value)) + { + /* VALUE should be of the form CLASS-DEPTH, where CLASS is one + of `PseudoColor', `TrueColor' etc. and DEPTH is the color + depth, a decimal number. NAME is compared with case ignored. */ + char *s = (char *) alloca (STRING_BYTES (XSTRING (value)) + 1); + char *dash; + int i, class = -1; + XVisualInfo vinfo; + + strcpy (s, XSTRING (value)->data); + dash = index (s, '-'); + if (dash) + { + dpyinfo->n_planes = atoi (dash + 1); + *dash = '\0'; + } + else + /* We won't find a matching visual with depth 0, so that + an error will be printed below. */ + dpyinfo->n_planes = 0; - vinfo = XGetVisualInfo (dpy, - VisualIDMask | VisualScreenMask, &vinfo_template, - &n_visuals); - if (n_visuals != 1) - fatal ("Can't get proper X visual info"); + /* Determine the visual class. */ + for (i = 0; visual_classes[i].name; ++i) + if (xstricmp (s, visual_classes[i].name) == 0) + { + class = visual_classes[i].class; + break; + } - if ((1 << vinfo->depth) == vinfo->colormap_size) - *depth = vinfo->depth; + /* Look up a matching visual for the specified class. */ + if (class == -1 + || !XMatchVisualInfo (dpy, XScreenNumberOfScreen (screen), + dpyinfo->n_planes, class, &vinfo)) + fatal ("Invalid visual specification `%s'", XSTRING (value)->data); + + dpyinfo->visual = vinfo.visual; + } else { - int i = 0; - int n = vinfo->colormap_size - 1; - while (n) + int n_visuals; + XVisualInfo *vinfo, vinfo_template; + + dpyinfo->visual = DefaultVisualOfScreen (screen); + +#ifdef HAVE_X11R4 + vinfo_template.visualid = XVisualIDFromVisual (dpyinfo->visual); +#else + vinfo_template.visualid = dpyinfo->visual->visualid; +#endif + vinfo_template.screen = XScreenNumberOfScreen (screen); + vinfo = XGetVisualInfo (dpy, VisualIDMask | VisualScreenMask, + &vinfo_template, &n_visuals); + if (n_visuals != 1) + fatal ("Can't get proper X visual info"); + + if ((1 << vinfo->depth) == vinfo->colormap_size) + dpyinfo->n_planes = vinfo->depth; + else { - n = n >> 1; - i++; + int i = 0; + int n = vinfo->colormap_size - 1; + while (n) + { + n = n >> 1; + i++; + } + dpyinfo->n_planes = i; } - *depth = i; - } - XFree ((char *) vinfo); - return v; + XFree ((char *) vinfo); + } } + /* Return the X display structure for the display named NAME. Open a new connection if necessary. */ @@ -5080,10 +5614,10 @@ x_display_info_for_name (name) for (dpyinfo = x_display_list, names = x_display_name_list; dpyinfo; - dpyinfo = dpyinfo->next, names = XCONS (names)->cdr) + dpyinfo = dpyinfo->next, names = XCDR (names)) { Lisp_Object tem; - tem = Fstring_equal (XCONS (XCONS (names)->car)->car, name); + tem = Fstring_equal (XCAR (XCAR (names)), name); if (!NILP (tem)) return dpyinfo; } @@ -5105,6 +5639,7 @@ x_display_info_for_name (name) return dpyinfo; } + DEFUN ("x-open-connection", Fx_open_connection, Sx_open_connection, 1, 3, 0, "Open a connection to an X server.\n\ DISPLAY is the name of the display to connect to.\n\ @@ -5114,7 +5649,6 @@ terminate Emacs if we can't open the connection.") (display, xrm_string, must_succeed) Lisp_Object display, xrm_string, must_succeed; { - unsigned int n_planes; unsigned char *xrm_option; struct x_display_info *dpyinfo; @@ -5164,7 +5698,6 @@ If DISPLAY is nil, that stands for the selected frame's display.") Lisp_Object display; { struct x_display_info *dpyinfo = check_x_display_info (display); - struct x_display_info *tail; int i; if (dpyinfo->reference_count > 0) @@ -5173,13 +5706,14 @@ If DISPLAY is nil, that stands for the selected frame's display.") BLOCK_INPUT; /* Free the fonts in the font table. */ for (i = 0; i < dpyinfo->n_fonts; i++) - { - if (dpyinfo->font_table[i].name) - free (dpyinfo->font_table[i].name); - /* Don't free the full_name string; - it is always shared with something else. */ - XFreeFont (dpyinfo->display, dpyinfo->font_table[i].font); - } + if (dpyinfo->font_table[i].name) + { + xfree (dpyinfo->font_table[i].name); + /* Don't free the full_name string; + it is always shared with something else. */ + XFreeFont (dpyinfo->display, dpyinfo->font_table[i].font); + } + x_destroy_all_bitmaps (dpyinfo); XSetCloseDownMode (dpyinfo->display, DestroyAll); @@ -5202,8 +5736,8 @@ DEFUN ("x-display-list", Fx_display_list, Sx_display_list, 0, 0, 0, Lisp_Object tail, result; result = Qnil; - for (tail = x_display_name_list; ! NILP (tail); tail = XCONS (tail)->cdr) - result = Fcons (XCONS (XCONS (tail)->car)->car, result); + for (tail = x_display_name_list; ! NILP (tail); tail = XCDR (tail)) + result = Fcons (XCAR (XCAR (tail)), result); return result; } @@ -5237,107 +5771,5293 @@ x_sync (f) XSync (FRAME_X_DISPLAY (f), False); UNBLOCK_INPUT; } + -void -syms_of_xfns () -{ - /* This is zero if not using X windows. */ - x_in_use = 0; +/*********************************************************************** + Image types + ***********************************************************************/ - /* The section below is built by the lisp expression at the top of the file, - just above where these variables are declared. */ - /*&&& init symbols here &&&*/ - Qauto_raise = intern ("auto-raise"); - staticpro (&Qauto_raise); - Qauto_lower = intern ("auto-lower"); - staticpro (&Qauto_lower); - Qbackground_color = intern ("background-color"); - staticpro (&Qbackground_color); - Qbar = intern ("bar"); - staticpro (&Qbar); - Qborder_color = intern ("border-color"); - staticpro (&Qborder_color); - Qborder_width = intern ("border-width"); - staticpro (&Qborder_width); - Qbox = intern ("box"); - staticpro (&Qbox); - Qcursor_color = intern ("cursor-color"); - staticpro (&Qcursor_color); - Qcursor_type = intern ("cursor-type"); - staticpro (&Qcursor_type); - Qforeground_color = intern ("foreground-color"); - staticpro (&Qforeground_color); - Qgeometry = intern ("geometry"); - staticpro (&Qgeometry); - Qicon_left = intern ("icon-left"); - staticpro (&Qicon_left); - Qicon_top = intern ("icon-top"); - staticpro (&Qicon_top); - Qicon_type = intern ("icon-type"); - staticpro (&Qicon_type); - Qicon_name = intern ("icon-name"); - staticpro (&Qicon_name); - Qinternal_border_width = intern ("internal-border-width"); - staticpro (&Qinternal_border_width); - Qleft = intern ("left"); - staticpro (&Qleft); - Qright = intern ("right"); - staticpro (&Qright); - Qmouse_color = intern ("mouse-color"); - staticpro (&Qmouse_color); - Qnone = intern ("none"); - staticpro (&Qnone); - Qparent_id = intern ("parent-id"); - staticpro (&Qparent_id); - Qscroll_bar_width = intern ("scroll-bar-width"); - staticpro (&Qscroll_bar_width); - Qsuppress_icon = intern ("suppress-icon"); - staticpro (&Qsuppress_icon); - Qtop = intern ("top"); - staticpro (&Qtop); - Qundefined_color = intern ("undefined-color"); - staticpro (&Qundefined_color); - Qvertical_scroll_bars = intern ("vertical-scroll-bars"); - staticpro (&Qvertical_scroll_bars); - Qvisibility = intern ("visibility"); - staticpro (&Qvisibility); - Qwindow_id = intern ("window-id"); - staticpro (&Qwindow_id); - Qouter_window_id = intern ("outer-window-id"); - staticpro (&Qouter_window_id); - Qx_frame_parameter = intern ("x-frame-parameter"); - staticpro (&Qx_frame_parameter); - Qx_resource_name = intern ("x-resource-name"); - staticpro (&Qx_resource_name); - Quser_position = intern ("user-position"); - staticpro (&Quser_position); - Quser_size = intern ("user-size"); - staticpro (&Quser_size); - Qdisplay = intern ("display"); - staticpro (&Qdisplay); - /* This is the end of symbol initialization. */ +/* Value is the number of elements of vector VECTOR. */ - Qface_set_after_frame_default = intern ("face-set-after-frame-default"); - staticpro (&Qface_set_after_frame_default); +#define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR)) - Fput (Qundefined_color, Qerror_conditions, - Fcons (Qundefined_color, Fcons (Qerror, Qnil))); - Fput (Qundefined_color, Qerror_message, - build_string ("Undefined color")); +/* List of supported image types. Use define_image_type to add new + types. Use lookup_image_type to find a type for a given symbol. */ - init_x_parm_symbols (); +static struct image_type *image_types; - DEFVAR_LISP ("x-bitmap-file-path", &Vx_bitmap_file_path, - "List of directories to search for bitmap files for X."); - Vx_bitmap_file_path = decode_env_path ((char *) 0, PATH_BITMAPS); +/* A list of symbols, one for each supported image type. */ - DEFVAR_LISP ("x-pointer-shape", &Vx_pointer_shape, - "The shape of the pointer when over text.\n\ -Changing the value does not affect existing frames\n\ -unless you set the mouse color."); - Vx_pointer_shape = Qnil; +Lisp_Object Vimage_types; - DEFVAR_LISP ("x-resource-name", &Vx_resource_name, +/* The symbol `image' which is the car of the lists used to represent + images in Lisp. */ + +extern Lisp_Object Qimage; + +/* The symbol `xbm' which is used as the type symbol for XBM images. */ + +Lisp_Object Qxbm; + +/* Keywords. */ + +extern Lisp_Object QCwidth, QCheight, QCforeground, QCbackground, QCfile; +extern Lisp_Object QCdata; +Lisp_Object QCtype, QCascent, QCmargin, QCrelief; +Lisp_Object QCalgorithm, QCcolor_symbols, QCheuristic_mask; +Lisp_Object QCindex; + +/* Other symbols. */ + +Lisp_Object Qlaplace; + +/* Time in seconds after which images should be removed from the cache + if not displayed. */ + +Lisp_Object Vimage_cache_eviction_delay; + +/* Function prototypes. */ + +static void define_image_type P_ ((struct image_type *type)); +static struct image_type *lookup_image_type P_ ((Lisp_Object symbol)); +static void image_error P_ ((char *format, Lisp_Object, Lisp_Object)); +static void x_laplace P_ ((struct frame *, struct image *)); +static int x_build_heuristic_mask P_ ((struct frame *, struct image *, + Lisp_Object)); + + +/* Define a new image type from TYPE. This adds a copy of TYPE to + image_types and adds the symbol *TYPE->type to Vimage_types. */ + +static void +define_image_type (type) + struct image_type *type; +{ + /* Make a copy of TYPE to avoid a bus error in a dumped Emacs. + The initialized data segment is read-only. */ + struct image_type *p = (struct image_type *) xmalloc (sizeof *p); + bcopy (type, p, sizeof *p); + p->next = image_types; + image_types = p; + Vimage_types = Fcons (*p->type, Vimage_types); +} + + +/* Look up image type SYMBOL, and return a pointer to its image_type + structure. Value is null if SYMBOL is not a known image type. */ + +static INLINE struct image_type * +lookup_image_type (symbol) + Lisp_Object symbol; +{ + struct image_type *type; + + for (type = image_types; type; type = type->next) + if (EQ (symbol, *type->type)) + break; + + return type; +} + + +/* Value is non-zero if OBJECT is a valid Lisp image specification. A + valid image specification is a list whose car is the symbol + `image', and whose rest is a property list. The property list must + contain a value for key `:type'. That value must be the name of a + supported image type. The rest of the property list depends on the + image type. */ + +int +valid_image_p (object) + Lisp_Object object; +{ + int valid_p = 0; + + if (CONSP (object) && EQ (XCAR (object), Qimage)) + { + Lisp_Object symbol = Fplist_get (XCDR (object), QCtype); + struct image_type *type = lookup_image_type (symbol); + + if (type) + valid_p = type->valid_p (object); + } + + return valid_p; +} + + +/* Log error message with format string FORMAT and argument ARG. + Signaling an error, e.g. when an image cannot be loaded, is not a + good idea because this would interrupt redisplay, and the error + message display would lead to another redisplay. This function + therefore simply displays a message. */ + +static void +image_error (format, arg1, arg2) + char *format; + Lisp_Object arg1, arg2; +{ + add_to_log (format, arg1, arg2); +} + + + +/*********************************************************************** + Image specifications + ***********************************************************************/ + +enum image_value_type +{ + IMAGE_DONT_CHECK_VALUE_TYPE, + IMAGE_STRING_VALUE, + IMAGE_SYMBOL_VALUE, + IMAGE_POSITIVE_INTEGER_VALUE, + IMAGE_NON_NEGATIVE_INTEGER_VALUE, + IMAGE_INTEGER_VALUE, + IMAGE_FUNCTION_VALUE, + IMAGE_NUMBER_VALUE, + IMAGE_BOOL_VALUE +}; + +/* Structure used when parsing image specifications. */ + +struct image_keyword +{ + /* Name of keyword. */ + char *name; + + /* The type of value allowed. */ + enum image_value_type type; + + /* Non-zero means key must be present. */ + int mandatory_p; + + /* Used to recognize duplicate keywords in a property list. */ + int count; + + /* The value that was found. */ + Lisp_Object value; +}; + + +static int parse_image_spec P_ ((Lisp_Object, struct image_keyword *, + int, Lisp_Object)); +static Lisp_Object image_spec_value P_ ((Lisp_Object, Lisp_Object, int *)); + + +/* Parse image spec SPEC according to KEYWORDS. A valid image spec + has the format (image KEYWORD VALUE ...). One of the keyword/ + value pairs must be `:type TYPE'. KEYWORDS is a vector of + image_keywords structures of size NKEYWORDS describing other + allowed keyword/value pairs. Value is non-zero if SPEC is valid. */ + +static int +parse_image_spec (spec, keywords, nkeywords, type) + Lisp_Object spec; + struct image_keyword *keywords; + int nkeywords; + Lisp_Object type; +{ + int i; + Lisp_Object plist; + + if (!CONSP (spec) || !EQ (XCAR (spec), Qimage)) + return 0; + + plist = XCDR (spec); + while (CONSP (plist)) + { + Lisp_Object key, value; + + /* First element of a pair must be a symbol. */ + key = XCAR (plist); + plist = XCDR (plist); + if (!SYMBOLP (key)) + return 0; + + /* There must follow a value. */ + if (!CONSP (plist)) + return 0; + value = XCAR (plist); + plist = XCDR (plist); + + /* Find key in KEYWORDS. Error if not found. */ + for (i = 0; i < nkeywords; ++i) + if (strcmp (keywords[i].name, XSYMBOL (key)->name->data) == 0) + break; + + if (i == nkeywords) + continue; + + /* Record that we recognized the keyword. If a keywords + was found more than once, it's an error. */ + keywords[i].value = value; + ++keywords[i].count; + + if (keywords[i].count > 1) + return 0; + + /* Check type of value against allowed type. */ + switch (keywords[i].type) + { + case IMAGE_STRING_VALUE: + if (!STRINGP (value)) + return 0; + break; + + case IMAGE_SYMBOL_VALUE: + if (!SYMBOLP (value)) + return 0; + break; + + case IMAGE_POSITIVE_INTEGER_VALUE: + if (!INTEGERP (value) || XINT (value) <= 0) + return 0; + break; + + case IMAGE_NON_NEGATIVE_INTEGER_VALUE: + if (!INTEGERP (value) || XINT (value) < 0) + return 0; + break; + + case IMAGE_DONT_CHECK_VALUE_TYPE: + break; + + case IMAGE_FUNCTION_VALUE: + value = indirect_function (value); + if (SUBRP (value) + || COMPILEDP (value) + || (CONSP (value) && EQ (XCAR (value), Qlambda))) + break; + return 0; + + case IMAGE_NUMBER_VALUE: + if (!INTEGERP (value) && !FLOATP (value)) + return 0; + break; + + case IMAGE_INTEGER_VALUE: + if (!INTEGERP (value)) + return 0; + break; + + case IMAGE_BOOL_VALUE: + if (!NILP (value) && !EQ (value, Qt)) + return 0; + break; + + default: + abort (); + break; + } + + if (EQ (key, QCtype) && !EQ (type, value)) + return 0; + } + + /* Check that all mandatory fields are present. */ + for (i = 0; i < nkeywords; ++i) + if (keywords[i].mandatory_p && keywords[i].count == 0) + return 0; + + return NILP (plist); +} + + +/* Return the value of KEY in image specification SPEC. Value is nil + if KEY is not present in SPEC. if FOUND is not null, set *FOUND + to 1 if KEY was found in SPEC, set it to 0 otherwise. */ + +static Lisp_Object +image_spec_value (spec, key, found) + Lisp_Object spec, key; + int *found; +{ + Lisp_Object tail; + + xassert (valid_image_p (spec)); + + for (tail = XCDR (spec); + CONSP (tail) && CONSP (XCDR (tail)); + tail = XCDR (XCDR (tail))) + { + if (EQ (XCAR (tail), key)) + { + if (found) + *found = 1; + return XCAR (XCDR (tail)); + } + } + + if (found) + *found = 0; + return Qnil; +} + + + + +/*********************************************************************** + Image type independent image structures + ***********************************************************************/ + +static struct image *make_image P_ ((Lisp_Object spec, unsigned hash)); +static void free_image P_ ((struct frame *f, struct image *img)); + + +/* Allocate and return a new image structure for image specification + SPEC. SPEC has a hash value of HASH. */ + +static struct image * +make_image (spec, hash) + Lisp_Object spec; + unsigned hash; +{ + struct image *img = (struct image *) xmalloc (sizeof *img); + + xassert (valid_image_p (spec)); + bzero (img, sizeof *img); + img->type = lookup_image_type (image_spec_value (spec, QCtype, NULL)); + xassert (img->type != NULL); + img->spec = spec; + img->data.lisp_val = Qnil; + img->ascent = DEFAULT_IMAGE_ASCENT; + img->hash = hash; + return img; +} + + +/* Free image IMG which was used on frame F, including its resources. */ + +static void +free_image (f, img) + struct frame *f; + struct image *img; +{ + if (img) + { + struct image_cache *c = FRAME_X_IMAGE_CACHE (f); + + /* Remove IMG from the hash table of its cache. */ + if (img->prev) + img->prev->next = img->next; + else + c->buckets[img->hash % IMAGE_CACHE_BUCKETS_SIZE] = img->next; + + if (img->next) + img->next->prev = img->prev; + + c->images[img->id] = NULL; + + /* Free resources, then free IMG. */ + img->type->free (f, img); + xfree (img); + } +} + + +/* Prepare image IMG for display on frame F. Must be called before + drawing an image. */ + +void +prepare_image_for_display (f, img) + struct frame *f; + struct image *img; +{ + EMACS_TIME t; + + /* We're about to display IMG, so set its timestamp to `now'. */ + EMACS_GET_TIME (t); + img->timestamp = EMACS_SECS (t); + + /* If IMG doesn't have a pixmap yet, load it now, using the image + type dependent loader function. */ + if (img->pixmap == 0 && !img->load_failed_p) + img->load_failed_p = img->type->load (f, img) == 0; +} + + + +/*********************************************************************** + Helper functions for X image types + ***********************************************************************/ + +static void x_clear_image P_ ((struct frame *f, struct image *img)); +static unsigned long x_alloc_image_color P_ ((struct frame *f, + struct image *img, + Lisp_Object color_name, + unsigned long dflt)); + +/* Free X resources of image IMG which is used on frame F. */ + +static void +x_clear_image (f, img) + struct frame *f; + struct image *img; +{ + if (img->pixmap) + { + BLOCK_INPUT; + XFreePixmap (FRAME_X_DISPLAY (f), img->pixmap); + img->pixmap = 0; + UNBLOCK_INPUT; + } + + if (img->ncolors) + { + BLOCK_INPUT; + x_free_colors (f, img->colors, img->ncolors); + UNBLOCK_INPUT; + + xfree (img->colors); + img->colors = NULL; + img->ncolors = 0; + } +} + + +/* Allocate color COLOR_NAME for image IMG on frame F. If color + cannot be allocated, use DFLT. Add a newly allocated color to + IMG->colors, so that it can be freed again. Value is the pixel + color. */ + +static unsigned long +x_alloc_image_color (f, img, color_name, dflt) + struct frame *f; + struct image *img; + Lisp_Object color_name; + unsigned long dflt; +{ + XColor color; + unsigned long result; + + xassert (STRINGP (color_name)); + + if (x_defined_color (f, XSTRING (color_name)->data, &color, 1)) + { + /* This isn't called frequently so we get away with simply + reallocating the color vector to the needed size, here. */ + ++img->ncolors; + img->colors = + (unsigned long *) xrealloc (img->colors, + img->ncolors * sizeof *img->colors); + img->colors[img->ncolors - 1] = color.pixel; + result = color.pixel; + } + else + result = dflt; + + return result; +} + + + +/*********************************************************************** + Image Cache + ***********************************************************************/ + +static void cache_image P_ ((struct frame *f, struct image *img)); + + +/* Return a new, initialized image cache that is allocated from the + heap. Call free_image_cache to free an image cache. */ + +struct image_cache * +make_image_cache () +{ + struct image_cache *c = (struct image_cache *) xmalloc (sizeof *c); + int size; + + bzero (c, sizeof *c); + c->size = 50; + c->images = (struct image **) xmalloc (c->size * sizeof *c->images); + size = IMAGE_CACHE_BUCKETS_SIZE * sizeof *c->buckets; + c->buckets = (struct image **) xmalloc (size); + bzero (c->buckets, size); + return c; +} + + +/* Free image cache of frame F. Be aware that X frames share images + caches. */ + +void +free_image_cache (f) + struct frame *f; +{ + struct image_cache *c = FRAME_X_IMAGE_CACHE (f); + if (c) + { + int i; + + /* Cache should not be referenced by any frame when freed. */ + xassert (c->refcount == 0); + + for (i = 0; i < c->used; ++i) + free_image (f, c->images[i]); + xfree (c->images); + xfree (c); + xfree (c->buckets); + FRAME_X_IMAGE_CACHE (f) = NULL; + } +} + + +/* Clear image cache of frame F. FORCE_P non-zero means free all + images. FORCE_P zero means clear only images that haven't been + displayed for some time. Should be called from time to time to + reduce the number of loaded images. If image-eviction-seconds is + non-nil, this frees images in the cache which weren't displayed for + at least that many seconds. */ + +void +clear_image_cache (f, force_p) + struct frame *f; + int force_p; +{ + struct image_cache *c = FRAME_X_IMAGE_CACHE (f); + + if (c && INTEGERP (Vimage_cache_eviction_delay)) + { + EMACS_TIME t; + unsigned long old; + int i, any_freed_p = 0; + + EMACS_GET_TIME (t); + old = EMACS_SECS (t) - XFASTINT (Vimage_cache_eviction_delay); + + for (i = 0; i < c->used; ++i) + { + struct image *img = c->images[i]; + if (img != NULL + && (force_p + || (img->timestamp > old))) + { + free_image (f, img); + any_freed_p = 1; + } + } + + /* We may be clearing the image cache because, for example, + Emacs was iconified for a longer period of time. In that + case, current matrices may still contain references to + images freed above. So, clear these matrices. */ + if (any_freed_p) + { + clear_current_matrices (f); + ++windows_or_buffers_changed; + } + } +} + + +DEFUN ("clear-image-cache", Fclear_image_cache, Sclear_image_cache, + 0, 1, 0, + "Clear the image cache of FRAME.\n\ +FRAME nil or omitted means use the selected frame.\n\ +FRAME t means clear the image caches of all frames.") + (frame) + Lisp_Object frame; +{ + if (EQ (frame, Qt)) + { + Lisp_Object tail; + + FOR_EACH_FRAME (tail, frame) + if (FRAME_X_P (XFRAME (frame))) + clear_image_cache (XFRAME (frame), 1); + } + else + clear_image_cache (check_x_frame (frame), 1); + + return Qnil; +} + + +/* Return the id of image with Lisp specification SPEC on frame F. + SPEC must be a valid Lisp image specification (see valid_image_p). */ + +int +lookup_image (f, spec) + struct frame *f; + Lisp_Object spec; +{ + struct image_cache *c = FRAME_X_IMAGE_CACHE (f); + struct image *img; + int i; + unsigned hash; + struct gcpro gcpro1; + EMACS_TIME now; + + /* F must be a window-system frame, and SPEC must be a valid image + specification. */ + xassert (FRAME_WINDOW_P (f)); + xassert (valid_image_p (spec)); + + GCPRO1 (spec); + + /* Look up SPEC in the hash table of the image cache. */ + hash = sxhash (spec, 0); + i = hash % IMAGE_CACHE_BUCKETS_SIZE; + + for (img = c->buckets[i]; img; img = img->next) + if (img->hash == hash && !NILP (Fequal (img->spec, spec))) + break; + + /* If not found, create a new image and cache it. */ + if (img == NULL) + { + img = make_image (spec, hash); + cache_image (f, img); + img->load_failed_p = img->type->load (f, img) == 0; + xassert (!interrupt_input_blocked); + + /* If we can't load the image, and we don't have a width and + height, use some arbitrary width and height so that we can + draw a rectangle for it. */ + if (img->load_failed_p) + { + Lisp_Object value; + + value = image_spec_value (spec, QCwidth, NULL); + img->width = (INTEGERP (value) + ? XFASTINT (value) : DEFAULT_IMAGE_WIDTH); + value = image_spec_value (spec, QCheight, NULL); + img->height = (INTEGERP (value) + ? XFASTINT (value) : DEFAULT_IMAGE_HEIGHT); + } + else + { + /* Handle image type independent image attributes + `:ascent PERCENT', `:margin MARGIN', `:relief RELIEF'. */ + Lisp_Object ascent, margin, relief, algorithm, heuristic_mask; + Lisp_Object file; + + ascent = image_spec_value (spec, QCascent, NULL); + if (INTEGERP (ascent)) + img->ascent = XFASTINT (ascent); + + margin = image_spec_value (spec, QCmargin, NULL); + if (INTEGERP (margin) && XINT (margin) >= 0) + img->margin = XFASTINT (margin); + + relief = image_spec_value (spec, QCrelief, NULL); + if (INTEGERP (relief)) + { + img->relief = XINT (relief); + img->margin += abs (img->relief); + } + + /* Should we apply a Laplace edge-detection algorithm? */ + algorithm = image_spec_value (spec, QCalgorithm, NULL); + if (img->pixmap && EQ (algorithm, Qlaplace)) + x_laplace (f, img); + + /* Should we built a mask heuristically? */ + heuristic_mask = image_spec_value (spec, QCheuristic_mask, NULL); + if (img->pixmap && !img->mask && !NILP (heuristic_mask)) + x_build_heuristic_mask (f, img, heuristic_mask); + } + } + + /* We're using IMG, so set its timestamp to `now'. */ + EMACS_GET_TIME (now); + img->timestamp = EMACS_SECS (now); + + UNGCPRO; + + /* Value is the image id. */ + return img->id; +} + + +/* Cache image IMG in the image cache of frame F. */ + +static void +cache_image (f, img) + struct frame *f; + struct image *img; +{ + struct image_cache *c = FRAME_X_IMAGE_CACHE (f); + int i; + + /* Find a free slot in c->images. */ + for (i = 0; i < c->used; ++i) + if (c->images[i] == NULL) + break; + + /* If no free slot found, maybe enlarge c->images. */ + if (i == c->used && c->used == c->size) + { + c->size *= 2; + c->images = (struct image **) xrealloc (c->images, + c->size * sizeof *c->images); + } + + /* Add IMG to c->images, and assign IMG an id. */ + c->images[i] = img; + img->id = i; + if (i == c->used) + ++c->used; + + /* Add IMG to the cache's hash table. */ + i = img->hash % IMAGE_CACHE_BUCKETS_SIZE; + img->next = c->buckets[i]; + if (img->next) + img->next->prev = img; + img->prev = NULL; + c->buckets[i] = img; +} + + +/* Call FN on every image in the image cache of frame F. Used to mark + Lisp Objects in the image cache. */ + +void +forall_images_in_image_cache (f, fn) + struct frame *f; + void (*fn) P_ ((struct image *img)); +{ + if (FRAME_LIVE_P (f) && FRAME_X_P (f)) + { + struct image_cache *c = FRAME_X_IMAGE_CACHE (f); + if (c) + { + int i; + for (i = 0; i < c->used; ++i) + if (c->images[i]) + fn (c->images[i]); + } + } +} + + + +/*********************************************************************** + X support code + ***********************************************************************/ + +static int x_create_x_image_and_pixmap P_ ((struct frame *, int, int, int, + XImage **, Pixmap *)); +static void x_destroy_x_image P_ ((XImage *)); +static void x_put_x_image P_ ((struct frame *, XImage *, Pixmap, int, int)); + + +/* Create an XImage and a pixmap of size WIDTH x HEIGHT for use on + frame F. Set *XIMG and *PIXMAP to the XImage and Pixmap created. + Set (*XIMG)->data to a raster of WIDTH x HEIGHT pixels allocated + via xmalloc. Print error messages via image_error if an error + occurs. Value is non-zero if successful. */ + +static int +x_create_x_image_and_pixmap (f, width, height, depth, ximg, pixmap) + struct frame *f; + int width, height, depth; + XImage **ximg; + Pixmap *pixmap; +{ + Display *display = FRAME_X_DISPLAY (f); + Screen *screen = FRAME_X_SCREEN (f); + Window window = FRAME_X_WINDOW (f); + + xassert (interrupt_input_blocked); + + if (depth <= 0) + depth = DefaultDepthOfScreen (screen); + *ximg = XCreateImage (display, DefaultVisualOfScreen (screen), + depth, ZPixmap, 0, NULL, width, height, + depth > 16 ? 32 : depth > 8 ? 16 : 8, 0); + if (*ximg == NULL) + { + image_error ("Unable to allocate X image", Qnil, Qnil); + return 0; + } + + /* Allocate image raster. */ + (*ximg)->data = (char *) xmalloc ((*ximg)->bytes_per_line * height); + + /* Allocate a pixmap of the same size. */ + *pixmap = XCreatePixmap (display, window, width, height, depth); + if (*pixmap == 0) + { + x_destroy_x_image (*ximg); + *ximg = NULL; + image_error ("Unable to create X pixmap", Qnil, Qnil); + return 0; + } + + return 1; +} + + +/* Destroy XImage XIMG. Free XIMG->data. */ + +static void +x_destroy_x_image (ximg) + XImage *ximg; +{ + xassert (interrupt_input_blocked); + if (ximg) + { + xfree (ximg->data); + ximg->data = NULL; + XDestroyImage (ximg); + } +} + + +/* Put XImage XIMG into pixmap PIXMAP on frame F. WIDTH and HEIGHT + are width and height of both the image and pixmap. */ + +static void +x_put_x_image (f, ximg, pixmap, width, height) + struct frame *f; + XImage *ximg; + Pixmap pixmap; +{ + GC gc; + + xassert (interrupt_input_blocked); + gc = XCreateGC (FRAME_X_DISPLAY (f), pixmap, 0, NULL); + XPutImage (FRAME_X_DISPLAY (f), pixmap, gc, ximg, 0, 0, 0, 0, width, height); + XFreeGC (FRAME_X_DISPLAY (f), gc); +} + + + +/*********************************************************************** + Searching files + ***********************************************************************/ + +static Lisp_Object x_find_image_file P_ ((Lisp_Object)); + +/* Find image file FILE. Look in data-directory, then + x-bitmap-file-path. Value is the full name of the file found, or + nil if not found. */ + +static Lisp_Object +x_find_image_file (file) + Lisp_Object file; +{ + Lisp_Object file_found, search_path; + struct gcpro gcpro1, gcpro2; + int fd; + + file_found = Qnil; + search_path = Fcons (Vdata_directory, Vx_bitmap_file_path); + GCPRO2 (file_found, search_path); + + /* Try to find FILE in data-directory, then x-bitmap-file-path. */ + fd = openp (search_path, file, "", &file_found, 0); + + if (fd < 0) + file_found = Qnil; + else + close (fd); + + UNGCPRO; + return file_found; +} + + + +/*********************************************************************** + XBM images + ***********************************************************************/ + +static int xbm_load P_ ((struct frame *f, struct image *img)); +static int xbm_load_image_from_file P_ ((struct frame *f, struct image *img, + Lisp_Object file)); +static int xbm_image_p P_ ((Lisp_Object object)); +static int xbm_read_bitmap_file_data P_ ((char *, int *, int *, + unsigned char **)); + + +/* Indices of image specification fields in xbm_format, below. */ + +enum xbm_keyword_index +{ + XBM_TYPE, + XBM_FILE, + XBM_WIDTH, + XBM_HEIGHT, + XBM_DATA, + XBM_FOREGROUND, + XBM_BACKGROUND, + XBM_ASCENT, + XBM_MARGIN, + XBM_RELIEF, + XBM_ALGORITHM, + XBM_HEURISTIC_MASK, + XBM_LAST +}; + +/* Vector of image_keyword structures describing the format + of valid XBM image specifications. */ + +static struct image_keyword xbm_format[XBM_LAST] = +{ + {":type", IMAGE_SYMBOL_VALUE, 1}, + {":file", IMAGE_STRING_VALUE, 0}, + {":width", IMAGE_POSITIVE_INTEGER_VALUE, 0}, + {":height", IMAGE_POSITIVE_INTEGER_VALUE, 0}, + {":data", IMAGE_DONT_CHECK_VALUE_TYPE, 0}, + {":foreground", IMAGE_STRING_VALUE, 0}, + {":background", IMAGE_STRING_VALUE, 0}, + {":ascent", IMAGE_NON_NEGATIVE_INTEGER_VALUE, 0}, + {":margin", IMAGE_POSITIVE_INTEGER_VALUE, 0}, + {":relief", IMAGE_INTEGER_VALUE, 0}, + {":algorithm", IMAGE_DONT_CHECK_VALUE_TYPE, 0}, + {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0} +}; + +/* Structure describing the image type XBM. */ + +static struct image_type xbm_type = +{ + &Qxbm, + xbm_image_p, + xbm_load, + x_clear_image, + NULL +}; + +/* Tokens returned from xbm_scan. */ + +enum xbm_token +{ + XBM_TK_IDENT = 256, + XBM_TK_NUMBER +}; + + +/* Return non-zero if OBJECT is a valid XBM-type image specification. + A valid specification is a list starting with the symbol `image' + The rest of the list is a property list which must contain an + entry `:type xbm.. + + If the specification specifies a file to load, it must contain + an entry `:file FILENAME' where FILENAME is a string. + + If the specification is for a bitmap loaded from memory it must + contain `:width WIDTH', `:height HEIGHT', and `:data DATA', where + WIDTH and HEIGHT are integers > 0. DATA may be: + + 1. a string large enough to hold the bitmap data, i.e. it must + have a size >= (WIDTH + 7) / 8 * HEIGHT + + 2. a bool-vector of size >= WIDTH * HEIGHT + + 3. a vector of strings or bool-vectors, one for each line of the + bitmap. + + Both the file and data forms may contain the additional entries + `:background COLOR' and `:foreground COLOR'. If not present, + foreground and background of the frame on which the image is + displayed, is used. */ + +static int +xbm_image_p (object) + Lisp_Object object; +{ + struct image_keyword kw[XBM_LAST]; + + bcopy (xbm_format, kw, sizeof kw); + if (!parse_image_spec (object, kw, XBM_LAST, Qxbm)) + return 0; + + xassert (EQ (kw[XBM_TYPE].value, Qxbm)); + + if (kw[XBM_FILE].count) + { + if (kw[XBM_WIDTH].count || kw[XBM_HEIGHT].count || kw[XBM_DATA].count) + return 0; + } + else + { + Lisp_Object data; + int width, height; + + /* Entries for `:width', `:height' and `:data' must be present. */ + if (!kw[XBM_WIDTH].count + || !kw[XBM_HEIGHT].count + || !kw[XBM_DATA].count) + return 0; + + data = kw[XBM_DATA].value; + width = XFASTINT (kw[XBM_WIDTH].value); + height = XFASTINT (kw[XBM_HEIGHT].value); + + /* Check type of data, and width and height against contents of + data. */ + if (VECTORP (data)) + { + int i; + + /* Number of elements of the vector must be >= height. */ + if (XVECTOR (data)->size < height) + return 0; + + /* Each string or bool-vector in data must be large enough + for one line of the image. */ + for (i = 0; i < height; ++i) + { + Lisp_Object elt = XVECTOR (data)->contents[i]; + + if (STRINGP (elt)) + { + if (XSTRING (elt)->size + < (width + BITS_PER_CHAR - 1) / BITS_PER_CHAR) + return 0; + } + else if (BOOL_VECTOR_P (elt)) + { + if (XBOOL_VECTOR (elt)->size < width) + return 0; + } + else + return 0; + } + } + else if (STRINGP (data)) + { + if (XSTRING (data)->size + < (width + BITS_PER_CHAR - 1) / BITS_PER_CHAR * height) + return 0; + } + else if (BOOL_VECTOR_P (data)) + { + if (XBOOL_VECTOR (data)->size < width * height) + return 0; + } + else + return 0; + } + + /* Baseline must be a value between 0 and 100 (a percentage). */ + if (kw[XBM_ASCENT].count + && XFASTINT (kw[XBM_ASCENT].value) > 100) + return 0; + + return 1; +} + + +/* Scan a bitmap file. FP is the stream to read from. Value is + either an enumerator from enum xbm_token, or a character for a + single-character token, or 0 at end of file. If scanning an + identifier, store the lexeme of the identifier in SVAL. If + scanning a number, store its value in *IVAL. */ + +static int +xbm_scan (fp, sval, ival) + FILE *fp; + char *sval; + int *ival; +{ + int c; + + /* Skip white space. */ + while ((c = fgetc (fp)) != EOF && isspace (c)) + ; + + if (c == EOF) + c = 0; + else if (isdigit (c)) + { + int value = 0, digit; + + if (c == '0') + { + c = fgetc (fp); + if (c == 'x' || c == 'X') + { + while ((c = fgetc (fp)) != EOF) + { + if (isdigit (c)) + digit = c - '0'; + else if (c >= 'a' && c <= 'f') + digit = c - 'a' + 10; + else if (c >= 'A' && c <= 'F') + digit = c - 'A' + 10; + else + break; + value = 16 * value + digit; + } + } + else if (isdigit (c)) + { + value = c - '0'; + while ((c = fgetc (fp)) != EOF + && isdigit (c)) + value = 8 * value + c - '0'; + } + } + else + { + value = c - '0'; + while ((c = fgetc (fp)) != EOF + && isdigit (c)) + value = 10 * value + c - '0'; + } + + if (c != EOF) + ungetc (c, fp); + *ival = value; + c = XBM_TK_NUMBER; + } + else if (isalpha (c) || c == '_') + { + *sval++ = c; + while ((c = fgetc (fp)) != EOF + && (isalnum (c) || c == '_')) + *sval++ = c; + *sval = 0; + if (c != EOF) + ungetc (c, fp); + c = XBM_TK_IDENT; + } + + return c; +} + + +/* Replacement for XReadBitmapFileData which isn't available under old + X versions. FILE is the name of the bitmap file to read. Set + *WIDTH and *HEIGHT to the width and height of the image. Return in + *DATA the bitmap data allocated with xmalloc. Value is non-zero if + successful. */ + +static int +xbm_read_bitmap_file_data (file, width, height, data) + char *file; + int *width, *height; + unsigned char **data; +{ + FILE *fp; + char buffer[BUFSIZ]; + int padding_p = 0; + int v10 = 0; + int bytes_per_line, i, nbytes; + unsigned char *p; + int value; + int LA1; + +#define match() \ + LA1 = xbm_scan (fp, buffer, &value) + +#define expect(TOKEN) \ + if (LA1 != (TOKEN)) \ + goto failure; \ + else \ + match () + +#define expect_ident(IDENT) \ + if (LA1 == XBM_TK_IDENT && strcmp (buffer, (IDENT)) == 0) \ + match (); \ + else \ + goto failure + + fp = fopen (file, "r"); + if (fp == NULL) + return 0; + + *width = *height = -1; + *data = NULL; + LA1 = xbm_scan (fp, buffer, &value); + + /* Parse defines for width, height and hot-spots. */ + while (LA1 == '#') + { + match (); + expect_ident ("define"); + expect (XBM_TK_IDENT); + + if (LA1 == XBM_TK_NUMBER); + { + char *p = strrchr (buffer, '_'); + p = p ? p + 1 : buffer; + if (strcmp (p, "width") == 0) + *width = value; + else if (strcmp (p, "height") == 0) + *height = value; + } + expect (XBM_TK_NUMBER); + } + + if (*width < 0 || *height < 0) + goto failure; + + /* Parse bits. Must start with `static'. */ + expect_ident ("static"); + if (LA1 == XBM_TK_IDENT) + { + if (strcmp (buffer, "unsigned") == 0) + { + match (); + expect_ident ("char"); + } + else if (strcmp (buffer, "short") == 0) + { + match (); + v10 = 1; + if (*width % 16 && *width % 16 < 9) + padding_p = 1; + } + else if (strcmp (buffer, "char") == 0) + match (); + else + goto failure; + } + else + goto failure; + + expect (XBM_TK_IDENT); + expect ('['); + expect (']'); + expect ('='); + expect ('{'); + + bytes_per_line = (*width + 7) / 8 + padding_p; + nbytes = bytes_per_line * *height; + p = *data = (char *) xmalloc (nbytes); + + if (v10) + { + + for (i = 0; i < nbytes; i += 2) + { + int val = value; + expect (XBM_TK_NUMBER); + + *p++ = val; + if (!padding_p || ((i + 2) % bytes_per_line)) + *p++ = value >> 8; + + if (LA1 == ',' || LA1 == '}') + match (); + else + goto failure; + } + } + else + { + for (i = 0; i < nbytes; ++i) + { + int val = value; + expect (XBM_TK_NUMBER); + + *p++ = val; + + if (LA1 == ',' || LA1 == '}') + match (); + else + goto failure; + } + } + + fclose (fp); + return 1; + + failure: + + fclose (fp); + if (*data) + { + xfree (*data); + *data = NULL; + } + return 0; + +#undef match +#undef expect +#undef expect_ident +} + + +/* Load XBM image IMG which will be displayed on frame F from file + SPECIFIED_FILE. Value is non-zero if successful. */ + +static int +xbm_load_image_from_file (f, img, specified_file) + struct frame *f; + struct image *img; + Lisp_Object specified_file; +{ + int rc; + unsigned char *data; + int success_p = 0; + Lisp_Object file; + struct gcpro gcpro1; + + xassert (STRINGP (specified_file)); + file = Qnil; + GCPRO1 (file); + + file = x_find_image_file (specified_file); + if (!STRINGP (file)) + { + image_error ("Cannot find image file `%s'", specified_file, Qnil); + UNGCPRO; + return 0; + } + + rc = xbm_read_bitmap_file_data (XSTRING (file)->data, &img->width, + &img->height, &data); + if (rc) + { + int depth = DefaultDepthOfScreen (FRAME_X_SCREEN (f)); + unsigned long foreground = FRAME_FOREGROUND_PIXEL (f); + unsigned long background = FRAME_BACKGROUND_PIXEL (f); + Lisp_Object value; + + xassert (img->width > 0 && img->height > 0); + + /* Get foreground and background colors, maybe allocate colors. */ + value = image_spec_value (img->spec, QCforeground, NULL); + if (!NILP (value)) + foreground = x_alloc_image_color (f, img, value, foreground); + + value = image_spec_value (img->spec, QCbackground, NULL); + if (!NILP (value)) + background = x_alloc_image_color (f, img, value, background); + + BLOCK_INPUT; + img->pixmap + = XCreatePixmapFromBitmapData (FRAME_X_DISPLAY (f), + FRAME_X_WINDOW (f), + data, + img->width, img->height, + foreground, background, + depth); + xfree (data); + + if (img->pixmap == 0) + { + x_clear_image (f, img); + image_error ("Unable to create X pixmap for `%s'", file, Qnil); + } + else + success_p = 1; + + UNBLOCK_INPUT; + } + else + image_error ("Error loading XBM image `%s'", img->spec, Qnil); + + UNGCPRO; + return success_p; +} + + +/* Fill image IMG which is used on frame F with pixmap data. Value is + non-zero if successful. */ + +static int +xbm_load (f, img) + struct frame *f; + struct image *img; +{ + int success_p = 0; + Lisp_Object file_name; + + xassert (xbm_image_p (img->spec)); + + /* If IMG->spec specifies a file name, create a non-file spec from it. */ + file_name = image_spec_value (img->spec, QCfile, NULL); + if (STRINGP (file_name)) + success_p = xbm_load_image_from_file (f, img, file_name); + else + { + struct image_keyword fmt[XBM_LAST]; + Lisp_Object data; + int depth; + unsigned long foreground = FRAME_FOREGROUND_PIXEL (f); + unsigned long background = FRAME_BACKGROUND_PIXEL (f); + char *bits; + int parsed_p; + + /* Parse the list specification. */ + bcopy (xbm_format, fmt, sizeof fmt); + parsed_p = parse_image_spec (img->spec, fmt, XBM_LAST, Qxbm); + xassert (parsed_p); + + /* Get specified width, and height. */ + img->width = XFASTINT (fmt[XBM_WIDTH].value); + img->height = XFASTINT (fmt[XBM_HEIGHT].value); + xassert (img->width > 0 && img->height > 0); + + BLOCK_INPUT; + + if (fmt[XBM_ASCENT].count) + img->ascent = XFASTINT (fmt[XBM_ASCENT].value); + + /* Get foreground and background colors, maybe allocate colors. */ + if (fmt[XBM_FOREGROUND].count) + foreground = x_alloc_image_color (f, img, fmt[XBM_FOREGROUND].value, + foreground); + if (fmt[XBM_BACKGROUND].count) + background = x_alloc_image_color (f, img, fmt[XBM_BACKGROUND].value, + background); + + /* Set bits to the bitmap image data. */ + data = fmt[XBM_DATA].value; + if (VECTORP (data)) + { + int i; + char *p; + int nbytes = (img->width + BITS_PER_CHAR - 1) / BITS_PER_CHAR; + + p = bits = (char *) alloca (nbytes * img->height); + for (i = 0; i < img->height; ++i, p += nbytes) + { + Lisp_Object line = XVECTOR (data)->contents[i]; + if (STRINGP (line)) + bcopy (XSTRING (line)->data, p, nbytes); + else + bcopy (XBOOL_VECTOR (line)->data, p, nbytes); + } + } + else if (STRINGP (data)) + bits = XSTRING (data)->data; + else + bits = XBOOL_VECTOR (data)->data; + + /* Create the pixmap. */ + depth = DefaultDepthOfScreen (FRAME_X_SCREEN (f)); + img->pixmap + = XCreatePixmapFromBitmapData (FRAME_X_DISPLAY (f), + FRAME_X_WINDOW (f), + bits, + img->width, img->height, + foreground, background, + depth); + if (img->pixmap) + success_p = 1; + else + { + image_error ("Unable to create pixmap for XBM image `%s'", + img->spec, Qnil); + x_clear_image (f, img); + } + + UNBLOCK_INPUT; + } + + return success_p; +} + + + +/*********************************************************************** + XPM images + ***********************************************************************/ + +#if HAVE_XPM + +static int xpm_image_p P_ ((Lisp_Object object)); +static int xpm_load P_ ((struct frame *f, struct image *img)); +static int xpm_valid_color_symbols_p P_ ((Lisp_Object)); + +#include "X11/xpm.h" + +/* The symbol `xpm' identifying XPM-format images. */ + +Lisp_Object Qxpm; + +/* Indices of image specification fields in xpm_format, below. */ + +enum xpm_keyword_index +{ + XPM_TYPE, + XPM_FILE, + XPM_DATA, + XPM_ASCENT, + XPM_MARGIN, + XPM_RELIEF, + XPM_ALGORITHM, + XPM_HEURISTIC_MASK, + XPM_COLOR_SYMBOLS, + XPM_LAST +}; + +/* Vector of image_keyword structures describing the format + of valid XPM image specifications. */ + +static struct image_keyword xpm_format[XPM_LAST] = +{ + {":type", IMAGE_SYMBOL_VALUE, 1}, + {":file", IMAGE_STRING_VALUE, 0}, + {":data", IMAGE_STRING_VALUE, 0}, + {":ascent", IMAGE_NON_NEGATIVE_INTEGER_VALUE, 0}, + {":margin", IMAGE_POSITIVE_INTEGER_VALUE, 0}, + {":relief", IMAGE_INTEGER_VALUE, 0}, + {":algorithm", IMAGE_DONT_CHECK_VALUE_TYPE, 0}, + {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0}, + {":color-symbols", IMAGE_DONT_CHECK_VALUE_TYPE, 0} +}; + +/* Structure describing the image type XBM. */ + +static struct image_type xpm_type = +{ + &Qxpm, + xpm_image_p, + xpm_load, + x_clear_image, + NULL +}; + + +/* Value is non-zero if COLOR_SYMBOLS is a valid color symbols list + for XPM images. Such a list must consist of conses whose car and + cdr are strings. */ + +static int +xpm_valid_color_symbols_p (color_symbols) + Lisp_Object color_symbols; +{ + while (CONSP (color_symbols)) + { + Lisp_Object sym = XCAR (color_symbols); + if (!CONSP (sym) + || !STRINGP (XCAR (sym)) + || !STRINGP (XCDR (sym))) + break; + color_symbols = XCDR (color_symbols); + } + + return NILP (color_symbols); +} + + +/* Value is non-zero if OBJECT is a valid XPM image specification. */ + +static int +xpm_image_p (object) + Lisp_Object object; +{ + struct image_keyword fmt[XPM_LAST]; + bcopy (xpm_format, fmt, sizeof fmt); + return (parse_image_spec (object, fmt, XPM_LAST, Qxpm) + /* Either `:file' or `:data' must be present. */ + && fmt[XPM_FILE].count + fmt[XPM_DATA].count == 1 + /* Either no `:color-symbols' or it's a list of conses + whose car and cdr are strings. */ + && (fmt[XPM_COLOR_SYMBOLS].count == 0 + || xpm_valid_color_symbols_p (fmt[XPM_COLOR_SYMBOLS].value)) + && (fmt[XPM_ASCENT].count == 0 + || XFASTINT (fmt[XPM_ASCENT].value) < 100)); +} + + +/* Load image IMG which will be displayed on frame F. Value is + non-zero if successful. */ + +static int +xpm_load (f, img) + struct frame *f; + struct image *img; +{ + int rc, i; + XpmAttributes attrs; + Lisp_Object specified_file, color_symbols; + + /* Configure the XPM lib. Use the visual of frame F. Allocate + close colors. Return colors allocated. */ + bzero (&attrs, sizeof attrs); + attrs.visual = FRAME_X_VISUAL (f); + attrs.colormap = FRAME_X_COLORMAP (f); + attrs.valuemask |= XpmVisual; + attrs.valuemask |= XpmColormap; + attrs.valuemask |= XpmReturnAllocPixels; +#ifdef XpmAllocCloseColors + attrs.alloc_close_colors = 1; + attrs.valuemask |= XpmAllocCloseColors; +#else + attrs.closeness = 600; + attrs.valuemask |= XpmCloseness; +#endif + + /* If image specification contains symbolic color definitions, add + these to `attrs'. */ + color_symbols = image_spec_value (img->spec, QCcolor_symbols, NULL); + if (CONSP (color_symbols)) + { + Lisp_Object tail; + XpmColorSymbol *xpm_syms; + int i, size; + + attrs.valuemask |= XpmColorSymbols; + + /* Count number of symbols. */ + attrs.numsymbols = 0; + for (tail = color_symbols; CONSP (tail); tail = XCDR (tail)) + ++attrs.numsymbols; + + /* Allocate an XpmColorSymbol array. */ + size = attrs.numsymbols * sizeof *xpm_syms; + xpm_syms = (XpmColorSymbol *) alloca (size); + bzero (xpm_syms, size); + attrs.colorsymbols = xpm_syms; + + /* Fill the color symbol array. */ + for (tail = color_symbols, i = 0; + CONSP (tail); + ++i, tail = XCDR (tail)) + { + Lisp_Object name = XCAR (XCAR (tail)); + Lisp_Object color = XCDR (XCAR (tail)); + xpm_syms[i].name = (char *) alloca (XSTRING (name)->size + 1); + strcpy (xpm_syms[i].name, XSTRING (name)->data); + xpm_syms[i].value = (char *) alloca (XSTRING (color)->size + 1); + strcpy (xpm_syms[i].value, XSTRING (color)->data); + } + } + + /* Create a pixmap for the image, either from a file, or from a + string buffer containing data in the same format as an XPM file. */ + BLOCK_INPUT; + specified_file = image_spec_value (img->spec, QCfile, NULL); + if (STRINGP (specified_file)) + { + Lisp_Object file = x_find_image_file (specified_file); + if (!STRINGP (file)) + { + image_error ("Cannot find image file `%s'", specified_file, Qnil); + UNBLOCK_INPUT; + return 0; + } + + rc = XpmReadFileToPixmap (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), + XSTRING (file)->data, &img->pixmap, &img->mask, + &attrs); + } + else + { + Lisp_Object buffer = image_spec_value (img->spec, QCdata, NULL); + rc = XpmCreatePixmapFromBuffer (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), + XSTRING (buffer)->data, + &img->pixmap, &img->mask, + &attrs); + } + UNBLOCK_INPUT; + + if (rc == XpmSuccess) + { + /* Remember allocated colors. */ + img->ncolors = attrs.nalloc_pixels; + img->colors = (unsigned long *) xmalloc (img->ncolors + * sizeof *img->colors); + for (i = 0; i < attrs.nalloc_pixels; ++i) + img->colors[i] = attrs.alloc_pixels[i]; + + img->width = attrs.width; + img->height = attrs.height; + xassert (img->width > 0 && img->height > 0); + + /* The call to XpmFreeAttributes below frees attrs.alloc_pixels. */ + BLOCK_INPUT; + XpmFreeAttributes (&attrs); + UNBLOCK_INPUT; + } + else + { + switch (rc) + { + case XpmOpenFailed: + image_error ("Error opening XPM file (%s)", img->spec, Qnil); + break; + + case XpmFileInvalid: + image_error ("Invalid XPM file (%s)", img->spec, Qnil); + break; + + case XpmNoMemory: + image_error ("Out of memory (%s)", img->spec, Qnil); + break; + + case XpmColorFailed: + image_error ("Color allocation error (%s)", img->spec, Qnil); + break; + + default: + image_error ("Unknown error (%s)", img->spec, Qnil); + break; + } + } + + return rc == XpmSuccess; +} + +#endif /* HAVE_XPM != 0 */ + + +/*********************************************************************** + Color table + ***********************************************************************/ + +/* An entry in the color table mapping an RGB color to a pixel color. */ + +struct ct_color +{ + int r, g, b; + unsigned long pixel; + + /* Next in color table collision list. */ + struct ct_color *next; +}; + +/* The bucket vector size to use. Must be prime. */ + +#define CT_SIZE 101 + +/* Value is a hash of the RGB color given by R, G, and B. */ + +#define CT_HASH_RGB(R, G, B) (((R) << 16) ^ ((G) << 8) ^ (B)) + +/* The color hash table. */ + +struct ct_color **ct_table; + +/* Number of entries in the color table. */ + +int ct_colors_allocated; + +/* Function prototypes. */ + +static void init_color_table P_ ((void)); +static void free_color_table P_ ((void)); +static unsigned long *colors_in_color_table P_ ((int *n)); +static unsigned long lookup_rgb_color P_ ((struct frame *f, int r, int g, int b)); +static unsigned long lookup_pixel_color P_ ((struct frame *f, unsigned long p)); + + +/* Initialize the color table. */ + +static void +init_color_table () +{ + int size = CT_SIZE * sizeof (*ct_table); + ct_table = (struct ct_color **) xmalloc (size); + bzero (ct_table, size); + ct_colors_allocated = 0; +} + + +/* Free memory associated with the color table. */ + +static void +free_color_table () +{ + int i; + struct ct_color *p, *next; + + for (i = 0; i < CT_SIZE; ++i) + for (p = ct_table[i]; p; p = next) + { + next = p->next; + xfree (p); + } + + xfree (ct_table); + ct_table = NULL; +} + + +/* Value is a pixel color for RGB color R, G, B on frame F. If an + entry for that color already is in the color table, return the + pixel color of that entry. Otherwise, allocate a new color for R, + G, B, and make an entry in the color table. */ + +static unsigned long +lookup_rgb_color (f, r, g, b) + struct frame *f; + int r, g, b; +{ + unsigned hash = CT_HASH_RGB (r, g, b); + int i = hash % CT_SIZE; + struct ct_color *p; + + for (p = ct_table[i]; p; p = p->next) + if (p->r == r && p->g == g && p->b == b) + break; + + if (p == NULL) + { + XColor color; + Colormap cmap; + int rc; + + color.red = r; + color.green = g; + color.blue = b; + + BLOCK_INPUT; + cmap = FRAME_X_COLORMAP (f); + rc = x_alloc_nearest_color (f, cmap, &color); + UNBLOCK_INPUT; + + if (rc) + { + ++ct_colors_allocated; + + p = (struct ct_color *) xmalloc (sizeof *p); + p->r = r; + p->g = g; + p->b = b; + p->pixel = color.pixel; + p->next = ct_table[i]; + ct_table[i] = p; + } + else + return FRAME_FOREGROUND_PIXEL (f); + } + + return p->pixel; +} + + +/* Look up pixel color PIXEL which is used on frame F in the color + table. If not already present, allocate it. Value is PIXEL. */ + +static unsigned long +lookup_pixel_color (f, pixel) + struct frame *f; + unsigned long pixel; +{ + int i = pixel % CT_SIZE; + struct ct_color *p; + + for (p = ct_table[i]; p; p = p->next) + if (p->pixel == pixel) + break; + + if (p == NULL) + { + XColor color; + Colormap cmap; + int rc; + + BLOCK_INPUT; + + cmap = FRAME_X_COLORMAP (f); + color.pixel = pixel; + XQueryColor (FRAME_X_DISPLAY (f), cmap, &color); + rc = x_alloc_nearest_color (f, cmap, &color); + UNBLOCK_INPUT; + + if (rc) + { + ++ct_colors_allocated; + + p = (struct ct_color *) xmalloc (sizeof *p); + p->r = color.red; + p->g = color.green; + p->b = color.blue; + p->pixel = pixel; + p->next = ct_table[i]; + ct_table[i] = p; + } + else + return FRAME_FOREGROUND_PIXEL (f); + } + + return p->pixel; +} + + +/* Value is a vector of all pixel colors contained in the color table, + allocated via xmalloc. Set *N to the number of colors. */ + +static unsigned long * +colors_in_color_table (n) + int *n; +{ + int i, j; + struct ct_color *p; + unsigned long *colors; + + if (ct_colors_allocated == 0) + { + *n = 0; + colors = NULL; + } + else + { + colors = (unsigned long *) xmalloc (ct_colors_allocated + * sizeof *colors); + *n = ct_colors_allocated; + + for (i = j = 0; i < CT_SIZE; ++i) + for (p = ct_table[i]; p; p = p->next) + colors[j++] = p->pixel; + } + + return colors; +} + + + +/*********************************************************************** + Algorithms + ***********************************************************************/ + +static void x_laplace_write_row P_ ((struct frame *, long *, + int, XImage *, int)); +static void x_laplace_read_row P_ ((struct frame *, Colormap, + XColor *, int, XImage *, int)); + + +/* Fill COLORS with RGB colors from row Y of image XIMG. F is the + frame we operate on, CMAP is the color-map in effect, and WIDTH is + the width of one row in the image. */ + +static void +x_laplace_read_row (f, cmap, colors, width, ximg, y) + struct frame *f; + Colormap cmap; + XColor *colors; + int width; + XImage *ximg; + int y; +{ + int x; + + for (x = 0; x < width; ++x) + colors[x].pixel = XGetPixel (ximg, x, y); + + XQueryColors (FRAME_X_DISPLAY (f), cmap, colors, width); +} + + +/* Write row Y of image XIMG. PIXELS is an array of WIDTH longs + containing the pixel colors to write. F is the frame we are + working on. */ + +static void +x_laplace_write_row (f, pixels, width, ximg, y) + struct frame *f; + long *pixels; + int width; + XImage *ximg; + int y; +{ + int x; + + for (x = 0; x < width; ++x) + XPutPixel (ximg, x, y, pixels[x]); +} + + +/* Transform image IMG which is used on frame F with a Laplace + edge-detection algorithm. The result is an image that can be used + to draw disabled buttons, for example. */ + +static void +x_laplace (f, img) + struct frame *f; + struct image *img; +{ + Colormap cmap = FRAME_X_COLORMAP (f); + XImage *ximg, *oimg; + XColor *in[3]; + long *out; + Pixmap pixmap; + int x, y, i; + long pixel; + int in_y, out_y, rc; + int mv2 = 45000; + + BLOCK_INPUT; + + /* Get the X image IMG->pixmap. */ + ximg = XGetImage (FRAME_X_DISPLAY (f), img->pixmap, + 0, 0, img->width, img->height, ~0, ZPixmap); + + /* Allocate 3 input rows, and one output row of colors. */ + for (i = 0; i < 3; ++i) + in[i] = (XColor *) alloca (img->width * sizeof (XColor)); + out = (long *) alloca (img->width * sizeof (long)); + + /* Create an X image for output. */ + rc = x_create_x_image_and_pixmap (f, img->width, img->height, 0, + &oimg, &pixmap); + + /* Fill first two rows. */ + x_laplace_read_row (f, cmap, in[0], img->width, ximg, 0); + x_laplace_read_row (f, cmap, in[1], img->width, ximg, 1); + in_y = 2; + + /* Write first row, all zeros. */ + init_color_table (); + pixel = lookup_rgb_color (f, 0, 0, 0); + for (x = 0; x < img->width; ++x) + out[x] = pixel; + x_laplace_write_row (f, out, img->width, oimg, 0); + out_y = 1; + + for (y = 2; y < img->height; ++y) + { + int rowa = y % 3; + int rowb = (y + 2) % 3; + + x_laplace_read_row (f, cmap, in[rowa], img->width, ximg, in_y++); + + for (x = 0; x < img->width - 2; ++x) + { + int r = in[rowa][x].red + mv2 - in[rowb][x + 2].red; + int g = in[rowa][x].green + mv2 - in[rowb][x + 2].green; + int b = in[rowa][x].blue + mv2 - in[rowb][x + 2].blue; + + out[x + 1] = lookup_rgb_color (f, r & 0xffff, g & 0xffff, + b & 0xffff); + } + + x_laplace_write_row (f, out, img->width, oimg, out_y++); + } + + /* Write last line, all zeros. */ + for (x = 0; x < img->width; ++x) + out[x] = pixel; + x_laplace_write_row (f, out, img->width, oimg, out_y); + + /* Free the input image, and free resources of IMG. */ + XDestroyImage (ximg); + x_clear_image (f, img); + + /* Put the output image into pixmap, and destroy it. */ + x_put_x_image (f, oimg, pixmap, img->width, img->height); + x_destroy_x_image (oimg); + + /* Remember new pixmap and colors in IMG. */ + img->pixmap = pixmap; + img->colors = colors_in_color_table (&img->ncolors); + free_color_table (); + + UNBLOCK_INPUT; +} + + +/* Build a mask for image IMG which is used on frame F. FILE is the + name of an image file, for error messages. HOW determines how to + determine the background color of IMG. If it is a list '(R G B)', + with R, G, and B being integers >= 0, take that as the color of the + background. Otherwise, determine the background color of IMG + heuristically. Value is non-zero if successful. */ + +static int +x_build_heuristic_mask (f, img, how) + struct frame *f; + struct image *img; + Lisp_Object how; +{ + Display *dpy = FRAME_X_DISPLAY (f); + XImage *ximg, *mask_img; + int x, y, rc, look_at_corners_p; + unsigned long bg; + + BLOCK_INPUT; + + /* Create an image and pixmap serving as mask. */ + rc = x_create_x_image_and_pixmap (f, img->width, img->height, 1, + &mask_img, &img->mask); + if (!rc) + { + UNBLOCK_INPUT; + return 0; + } + + /* Get the X image of IMG->pixmap. */ + ximg = XGetImage (dpy, img->pixmap, 0, 0, img->width, img->height, + ~0, ZPixmap); + + /* Determine the background color of ximg. If HOW is `(R G B)' + take that as color. Otherwise, try to determine the color + heuristically. */ + look_at_corners_p = 1; + + if (CONSP (how)) + { + int rgb[3], i = 0; + + while (i < 3 + && CONSP (how) + && NATNUMP (XCAR (how))) + { + rgb[i] = XFASTINT (XCAR (how)) & 0xffff; + how = XCDR (how); + } + + if (i == 3 && NILP (how)) + { + char color_name[30]; + XColor exact, color; + Colormap cmap; + + sprintf (color_name, "#%04x%04x%04x", rgb[0], rgb[1], rgb[2]); + + cmap = FRAME_X_COLORMAP (f); + if (XLookupColor (dpy, cmap, color_name, &exact, &color)) + { + bg = color.pixel; + look_at_corners_p = 0; + } + } + } + + if (look_at_corners_p) + { + unsigned long corners[4]; + int i, best_count; + + /* Get the colors at the corners of ximg. */ + corners[0] = XGetPixel (ximg, 0, 0); + corners[1] = XGetPixel (ximg, img->width - 1, 0); + corners[2] = XGetPixel (ximg, img->width - 1, img->height - 1); + corners[3] = XGetPixel (ximg, 0, img->height - 1); + + /* Choose the most frequently found color as background. */ + for (i = best_count = 0; i < 4; ++i) + { + int j, n; + + for (j = n = 0; j < 4; ++j) + if (corners[i] == corners[j]) + ++n; + + if (n > best_count) + bg = corners[i], best_count = n; + } + } + + /* Set all bits in mask_img to 1 whose color in ximg is different + from the background color bg. */ + for (y = 0; y < img->height; ++y) + for (x = 0; x < img->width; ++x) + XPutPixel (mask_img, x, y, XGetPixel (ximg, x, y) != bg); + + /* Put mask_img into img->mask. */ + x_put_x_image (f, mask_img, img->mask, img->width, img->height); + x_destroy_x_image (mask_img); + XDestroyImage (ximg); + + UNBLOCK_INPUT; + return 1; +} + + + +/*********************************************************************** + PBM (mono, gray, color) + ***********************************************************************/ + +static int pbm_image_p P_ ((Lisp_Object object)); +static int pbm_load P_ ((struct frame *f, struct image *img)); +static int pbm_scan_number P_ ((unsigned char **, unsigned char *)); + +/* The symbol `pbm' identifying images of this type. */ + +Lisp_Object Qpbm; + +/* Indices of image specification fields in gs_format, below. */ + +enum pbm_keyword_index +{ + PBM_TYPE, + PBM_FILE, + PBM_DATA, + PBM_ASCENT, + PBM_MARGIN, + PBM_RELIEF, + PBM_ALGORITHM, + PBM_HEURISTIC_MASK, + PBM_LAST +}; + +/* Vector of image_keyword structures describing the format + of valid user-defined image specifications. */ + +static struct image_keyword pbm_format[PBM_LAST] = +{ + {":type", IMAGE_SYMBOL_VALUE, 1}, + {":file", IMAGE_STRING_VALUE, 0}, + {":data", IMAGE_STRING_VALUE, 0}, + {":ascent", IMAGE_NON_NEGATIVE_INTEGER_VALUE, 0}, + {":margin", IMAGE_POSITIVE_INTEGER_VALUE, 0}, + {":relief", IMAGE_INTEGER_VALUE, 0}, + {":algorithm", IMAGE_DONT_CHECK_VALUE_TYPE, 0}, + {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0} +}; + +/* Structure describing the image type `pbm'. */ + +static struct image_type pbm_type = +{ + &Qpbm, + pbm_image_p, + pbm_load, + x_clear_image, + NULL +}; + + +/* Return non-zero if OBJECT is a valid PBM image specification. */ + +static int +pbm_image_p (object) + Lisp_Object object; +{ + struct image_keyword fmt[PBM_LAST]; + + bcopy (pbm_format, fmt, sizeof fmt); + + if (!parse_image_spec (object, fmt, PBM_LAST, Qpbm) + || (fmt[PBM_ASCENT].count + && XFASTINT (fmt[PBM_ASCENT].value) > 100)) + return 0; + + /* Must specify either :data or :file. */ + return fmt[PBM_DATA].count + fmt[PBM_FILE].count == 1; +} + + +/* Scan a decimal number from *S and return it. Advance *S while + reading the number. END is the end of the string. Value is -1 at + end of input. */ + +static int +pbm_scan_number (s, end) + unsigned char **s, *end; +{ + int c, val = -1; + + while (*s < end) + { + /* Skip white-space. */ + while (*s < end && (c = *(*s)++, isspace (c))) + ; + + if (c == '#') + { + /* Skip comment to end of line. */ + while (*s < end && (c = *(*s)++, c != '\n')) + ; + } + else if (isdigit (c)) + { + /* Read decimal number. */ + val = c - '0'; + while (*s < end && (c = *(*s)++, isdigit (c))) + val = 10 * val + c - '0'; + break; + } + else + break; + } + + return val; +} + + +/* Read FILE into memory. Value is a pointer to a buffer allocated + with xmalloc holding FILE's contents. Value is null if an error + occured. *SIZE is set to the size of the file. */ + +static char * +pbm_read_file (file, size) + Lisp_Object file; + int *size; +{ + FILE *fp = NULL; + char *buf = NULL; + struct stat st; + + if (stat (XSTRING (file)->data, &st) == 0 + && (fp = fopen (XSTRING (file)->data, "r")) != NULL + && (buf = (char *) xmalloc (st.st_size), + fread (buf, 1, st.st_size, fp) == st.st_size)) + { + *size = st.st_size; + fclose (fp); + } + else + { + if (fp) + fclose (fp); + if (buf) + { + xfree (buf); + buf = NULL; + } + } + + return buf; +} + + +/* Load PBM image IMG for use on frame F. */ + +static int +pbm_load (f, img) + struct frame *f; + struct image *img; +{ + int raw_p, x, y; + int width, height, max_color_idx = 0; + XImage *ximg; + Lisp_Object file, specified_file; + enum {PBM_MONO, PBM_GRAY, PBM_COLOR} type; + struct gcpro gcpro1; + unsigned char *contents = NULL; + unsigned char *end, *p; + int size; + + specified_file = image_spec_value (img->spec, QCfile, NULL); + file = Qnil; + GCPRO1 (file); + + if (STRINGP (specified_file)) + { + file = x_find_image_file (specified_file); + if (!STRINGP (file)) + { + image_error ("Cannot find image file `%s'", specified_file, Qnil); + UNGCPRO; + return 0; + } + + contents = pbm_read_file (file, &size); + if (contents == NULL) + { + image_error ("Error reading `%s'", file, Qnil); + UNGCPRO; + return 0; + } + + p = contents; + end = contents + size; + } + else + { + Lisp_Object data; + data = image_spec_value (img->spec, QCdata, NULL); + p = XSTRING (data)->data; + end = p + STRING_BYTES (XSTRING (data)); + } + + /* Check magic number. */ + if (end - p < 2 || *p++ != 'P') + { + image_error ("Not a PBM image: `%s'", img->spec, Qnil); + error: + xfree (contents); + UNGCPRO; + return 0; + } + + switch (*p++) + { + case '1': + raw_p = 0, type = PBM_MONO; + break; + + case '2': + raw_p = 0, type = PBM_GRAY; + break; + + case '3': + raw_p = 0, type = PBM_COLOR; + break; + + case '4': + raw_p = 1, type = PBM_MONO; + break; + + case '5': + raw_p = 1, type = PBM_GRAY; + break; + + case '6': + raw_p = 1, type = PBM_COLOR; + break; + + default: + image_error ("Not a PBM image: `%s'", img->spec, Qnil); + goto error; + } + + /* Read width, height, maximum color-component. Characters + starting with `#' up to the end of a line are ignored. */ + width = pbm_scan_number (&p, end); + height = pbm_scan_number (&p, end); + + if (type != PBM_MONO) + { + max_color_idx = pbm_scan_number (&p, end); + if (raw_p && max_color_idx > 255) + max_color_idx = 255; + } + + if (width < 0 + || height < 0 + || (type != PBM_MONO && max_color_idx < 0)) + goto error; + + BLOCK_INPUT; + if (!x_create_x_image_and_pixmap (f, width, height, 0, + &ximg, &img->pixmap)) + { + UNBLOCK_INPUT; + goto error; + } + + /* Initialize the color hash table. */ + init_color_table (); + + if (type == PBM_MONO) + { + int c = 0, g; + + for (y = 0; y < height; ++y) + for (x = 0; x < width; ++x) + { + if (raw_p) + { + if ((x & 7) == 0) + c = *p++; + g = c & 0x80; + c <<= 1; + } + else + g = pbm_scan_number (&p, end); + + XPutPixel (ximg, x, y, (g + ? FRAME_FOREGROUND_PIXEL (f) + : FRAME_BACKGROUND_PIXEL (f))); + } + } + else + { + for (y = 0; y < height; ++y) + for (x = 0; x < width; ++x) + { + int r, g, b; + + if (type == PBM_GRAY) + r = g = b = raw_p ? *p++ : pbm_scan_number (&p, end); + else if (raw_p) + { + r = *p++; + g = *p++; + b = *p++; + } + else + { + r = pbm_scan_number (&p, end); + g = pbm_scan_number (&p, end); + b = pbm_scan_number (&p, end); + } + + if (r < 0 || g < 0 || b < 0) + { + xfree (ximg->data); + ximg->data = NULL; + XDestroyImage (ximg); + UNBLOCK_INPUT; + image_error ("Invalid pixel value in image `%s'", + img->spec, Qnil); + goto error; + } + + /* RGB values are now in the range 0..max_color_idx. + Scale this to the range 0..0xffff supported by X. */ + r = (double) r * 65535 / max_color_idx; + g = (double) g * 65535 / max_color_idx; + b = (double) b * 65535 / max_color_idx; + XPutPixel (ximg, x, y, lookup_rgb_color (f, r, g, b)); + } + } + + /* Store in IMG->colors the colors allocated for the image, and + free the color table. */ + img->colors = colors_in_color_table (&img->ncolors); + free_color_table (); + + /* Put the image into a pixmap. */ + x_put_x_image (f, ximg, img->pixmap, width, height); + x_destroy_x_image (ximg); + UNBLOCK_INPUT; + + img->width = width; + img->height = height; + + UNGCPRO; + xfree (contents); + return 1; +} + + + +/*********************************************************************** + PNG + ***********************************************************************/ + +#if HAVE_PNG + +#include + +/* Function prototypes. */ + +static int png_image_p P_ ((Lisp_Object object)); +static int png_load P_ ((struct frame *f, struct image *img)); + +/* The symbol `png' identifying images of this type. */ + +Lisp_Object Qpng; + +/* Indices of image specification fields in png_format, below. */ + +enum png_keyword_index +{ + PNG_TYPE, + PNG_DATA, + PNG_FILE, + PNG_ASCENT, + PNG_MARGIN, + PNG_RELIEF, + PNG_ALGORITHM, + PNG_HEURISTIC_MASK, + PNG_LAST +}; + +/* Vector of image_keyword structures describing the format + of valid user-defined image specifications. */ + +static struct image_keyword png_format[PNG_LAST] = +{ + {":type", IMAGE_SYMBOL_VALUE, 1}, + {":data", IMAGE_STRING_VALUE, 0}, + {":file", IMAGE_STRING_VALUE, 0}, + {":ascent", IMAGE_NON_NEGATIVE_INTEGER_VALUE, 0}, + {":margin", IMAGE_POSITIVE_INTEGER_VALUE, 0}, + {":relief", IMAGE_INTEGER_VALUE, 0}, + {":algorithm", IMAGE_DONT_CHECK_VALUE_TYPE, 0}, + {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0} +}; + +/* Structure describing the image type `png'. */ + +static struct image_type png_type = +{ + &Qpng, + png_image_p, + png_load, + x_clear_image, + NULL +}; + + +/* Return non-zero if OBJECT is a valid PNG image specification. */ + +static int +png_image_p (object) + Lisp_Object object; +{ + struct image_keyword fmt[PNG_LAST]; + bcopy (png_format, fmt, sizeof fmt); + + if (!parse_image_spec (object, fmt, PNG_LAST, Qpng) + || (fmt[PNG_ASCENT].count + && XFASTINT (fmt[PNG_ASCENT].value) > 100)) + return 0; + + /* Must specify either the :data or :file keyword. */ + return fmt[PNG_FILE].count + fmt[PNG_DATA].count == 1; +} + + +/* Error and warning handlers installed when the PNG library + is initialized. */ + +static void +my_png_error (png_ptr, msg) + png_struct *png_ptr; + char *msg; +{ + xassert (png_ptr != NULL); + image_error ("PNG error: %s", build_string (msg), Qnil); + longjmp (png_ptr->jmpbuf, 1); +} + + +static void +my_png_warning (png_ptr, msg) + png_struct *png_ptr; + char *msg; +{ + xassert (png_ptr != NULL); + image_error ("PNG warning: %s", build_string (msg), Qnil); +} + +/* Memory source for PNG decoding. */ + +struct png_memory_storage +{ + unsigned char *bytes; /* The data */ + size_t len; /* How big is it? */ + int index; /* Where are we? */ +}; + + +/* Function set as reader function when reading PNG image from memory. + PNG_PTR is a pointer to the PNG control structure. Copy LENGTH + bytes from the input to DATA. */ + +static void +png_read_from_memory (png_ptr, data, length) + png_structp png_ptr; + png_bytep data; + png_size_t length; +{ + struct png_memory_storage *tbr + = (struct png_memory_storage *) png_get_io_ptr (png_ptr); + + if (length > tbr->len - tbr->index) + png_error (png_ptr, "Read error"); + + bcopy (tbr->bytes + tbr->index, data, length); + tbr->index = tbr->index + length; +} + +/* Load PNG image IMG for use on frame F. Value is non-zero if + successful. */ + +static int +png_load (f, img) + struct frame *f; + struct image *img; +{ + Lisp_Object file, specified_file; + Lisp_Object specified_data; + int x, y, i; + XImage *ximg, *mask_img = NULL; + struct gcpro gcpro1; + png_struct *png_ptr = NULL; + png_info *info_ptr = NULL, *end_info = NULL; + FILE *fp = NULL; + png_byte sig[8]; + png_byte *pixels = NULL; + png_byte **rows = NULL; + png_uint_32 width, height; + int bit_depth, color_type, interlace_type; + png_byte channels; + png_uint_32 row_bytes; + int transparent_p; + char *gamma_str; + double screen_gamma, image_gamma; + int intent; + struct png_memory_storage tbr; /* Data to be read */ + + /* Find out what file to load. */ + specified_file = image_spec_value (img->spec, QCfile, NULL); + specified_data = image_spec_value (img->spec, QCdata, NULL); + file = Qnil; + GCPRO1 (file); + + if (NILP (specified_data)) + { + file = x_find_image_file (specified_file); + if (!STRINGP (file)) + { + image_error ("Cannot find image file `%s'", specified_file, Qnil); + UNGCPRO; + return 0; + } + + /* Open the image file. */ + fp = fopen (XSTRING (file)->data, "rb"); + if (!fp) + { + image_error ("Cannot open image file `%s'", file, Qnil); + UNGCPRO; + fclose (fp); + return 0; + } + + /* Check PNG signature. */ + if (fread (sig, 1, sizeof sig, fp) != sizeof sig + || !png_check_sig (sig, sizeof sig)) + { + image_error ("Not a PNG file: `%s'", file, Qnil); + UNGCPRO; + fclose (fp); + return 0; + } + } + else + { + /* Read from memory. */ + tbr.bytes = XSTRING (specified_data)->data; + tbr.len = STRING_BYTES (XSTRING (specified_data)); + tbr.index = 0; + + /* Check PNG signature. */ + if (tbr.len < sizeof sig + || !png_check_sig (tbr.bytes, sizeof sig)) + { + image_error ("Not a PNG image: `%s'", img->spec, Qnil); + UNGCPRO; + return 0; + } + + /* Need to skip past the signature. */ + tbr.bytes += sizeof (sig); + } + + /* Initialize read and info structs for PNG lib. */ + png_ptr = png_create_read_struct (PNG_LIBPNG_VER_STRING, NULL, + my_png_error, my_png_warning); + if (!png_ptr) + { + if (fp) fclose (fp); + UNGCPRO; + return 0; + } + + info_ptr = png_create_info_struct (png_ptr); + if (!info_ptr) + { + png_destroy_read_struct (&png_ptr, NULL, NULL); + if (fp) fclose (fp); + UNGCPRO; + return 0; + } + + end_info = png_create_info_struct (png_ptr); + if (!end_info) + { + png_destroy_read_struct (&png_ptr, &info_ptr, NULL); + if (fp) fclose (fp); + UNGCPRO; + return 0; + } + + /* Set error jump-back. We come back here when the PNG library + detects an error. */ + if (setjmp (png_ptr->jmpbuf)) + { + error: + if (png_ptr) + png_destroy_read_struct (&png_ptr, &info_ptr, &end_info); + xfree (pixels); + xfree (rows); + if (fp) fclose (fp); + UNGCPRO; + return 0; + } + + /* Read image info. */ + if (!NILP (specified_data)) + png_set_read_fn (png_ptr, (void *) &tbr, png_read_from_memory); + else + png_init_io (png_ptr, fp); + + png_set_sig_bytes (png_ptr, sizeof sig); + png_read_info (png_ptr, info_ptr); + png_get_IHDR (png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, + &interlace_type, NULL, NULL); + + /* If image contains simply transparency data, we prefer to + construct a clipping mask. */ + if (png_get_valid (png_ptr, info_ptr, PNG_INFO_tRNS)) + transparent_p = 1; + else + transparent_p = 0; + + /* This function is easier to write if we only have to handle + one data format: RGB or RGBA with 8 bits per channel. Let's + transform other formats into that format. */ + + /* Strip more than 8 bits per channel. */ + if (bit_depth == 16) + png_set_strip_16 (png_ptr); + + /* Expand data to 24 bit RGB, or 8 bit grayscale, with alpha channel + if available. */ + png_set_expand (png_ptr); + + /* Convert grayscale images to RGB. */ + if (color_type == PNG_COLOR_TYPE_GRAY + || color_type == PNG_COLOR_TYPE_GRAY_ALPHA) + png_set_gray_to_rgb (png_ptr); + + /* The value 2.2 is a guess for PC monitors from PNG example.c. */ + gamma_str = getenv ("SCREEN_GAMMA"); + screen_gamma = gamma_str ? atof (gamma_str) : 2.2; + + /* Tell the PNG lib to handle gamma correction for us. */ + +#if defined(PNG_READ_sRGB_SUPPORTED) || defined(PNG_WRITE_sRGB_SUPPORTED) + if (png_get_sRGB (png_ptr, info_ptr, &intent)) + /* There is a special chunk in the image specifying the gamma. */ + png_set_sRGB (png_ptr, info_ptr, intent); + else +#endif + if (png_get_gAMA (png_ptr, info_ptr, &image_gamma)) + /* Image contains gamma information. */ + png_set_gamma (png_ptr, screen_gamma, image_gamma); + else + /* Use a default of 0.5 for the image gamma. */ + png_set_gamma (png_ptr, screen_gamma, 0.5); + + /* Handle alpha channel by combining the image with a background + color. Do this only if a real alpha channel is supplied. For + simple transparency, we prefer a clipping mask. */ + if (!transparent_p) + { + png_color_16 *image_background; + + if (png_get_bKGD (png_ptr, info_ptr, &image_background)) + /* Image contains a background color with which to + combine the image. */ + png_set_background (png_ptr, image_background, + PNG_BACKGROUND_GAMMA_FILE, 1, 1.0); + else + { + /* Image does not contain a background color with which + to combine the image data via an alpha channel. Use + the frame's background instead. */ + XColor color; + Colormap cmap; + png_color_16 frame_background; + + BLOCK_INPUT; + cmap = FRAME_X_COLORMAP (f); + color.pixel = FRAME_BACKGROUND_PIXEL (f); + XQueryColor (FRAME_X_DISPLAY (f), cmap, &color); + UNBLOCK_INPUT; + + bzero (&frame_background, sizeof frame_background); + frame_background.red = color.red; + frame_background.green = color.green; + frame_background.blue = color.blue; + + png_set_background (png_ptr, &frame_background, + PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0); + } + } + + /* Update info structure. */ + png_read_update_info (png_ptr, info_ptr); + + /* Get number of channels. Valid values are 1 for grayscale images + and images with a palette, 2 for grayscale images with transparency + information (alpha channel), 3 for RGB images, and 4 for RGB + images with alpha channel, i.e. RGBA. If conversions above were + sufficient we should only have 3 or 4 channels here. */ + channels = png_get_channels (png_ptr, info_ptr); + xassert (channels == 3 || channels == 4); + + /* Number of bytes needed for one row of the image. */ + row_bytes = png_get_rowbytes (png_ptr, info_ptr); + + /* Allocate memory for the image. */ + pixels = (png_byte *) xmalloc (row_bytes * height * sizeof *pixels); + rows = (png_byte **) xmalloc (height * sizeof *rows); + for (i = 0; i < height; ++i) + rows[i] = pixels + i * row_bytes; + + /* Read the entire image. */ + png_read_image (png_ptr, rows); + png_read_end (png_ptr, info_ptr); + if (fp) + { + fclose (fp); + fp = NULL; + } + + BLOCK_INPUT; + + /* Create the X image and pixmap. */ + if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, + &img->pixmap)) + { + UNBLOCK_INPUT; + goto error; + } + + /* Create an image and pixmap serving as mask if the PNG image + contains an alpha channel. */ + if (channels == 4 + && !transparent_p + && !x_create_x_image_and_pixmap (f, width, height, 1, + &mask_img, &img->mask)) + { + x_destroy_x_image (ximg); + XFreePixmap (FRAME_X_DISPLAY (f), img->pixmap); + img->pixmap = 0; + UNBLOCK_INPUT; + goto error; + } + + /* Fill the X image and mask from PNG data. */ + init_color_table (); + + for (y = 0; y < height; ++y) + { + png_byte *p = rows[y]; + + for (x = 0; x < width; ++x) + { + unsigned r, g, b; + + r = *p++ << 8; + g = *p++ << 8; + b = *p++ << 8; + XPutPixel (ximg, x, y, lookup_rgb_color (f, r, g, b)); + + /* An alpha channel, aka mask channel, associates variable + transparency with an image. Where other image formats + support binary transparency---fully transparent or fully + opaque---PNG allows up to 254 levels of partial transparency. + The PNG library implements partial transparency by combining + the image with a specified background color. + + I'm not sure how to handle this here nicely: because the + background on which the image is displayed may change, for + real alpha channel support, it would be necessary to create + a new image for each possible background. + + What I'm doing now is that a mask is created if we have + boolean transparency information. Otherwise I'm using + the frame's background color to combine the image with. */ + + if (channels == 4) + { + if (mask_img) + XPutPixel (mask_img, x, y, *p > 0); + ++p; + } + } + } + + /* Remember colors allocated for this image. */ + img->colors = colors_in_color_table (&img->ncolors); + free_color_table (); + + /* Clean up. */ + png_destroy_read_struct (&png_ptr, &info_ptr, &end_info); + xfree (rows); + xfree (pixels); + + img->width = width; + img->height = height; + + /* Put the image into the pixmap, then free the X image and its buffer. */ + x_put_x_image (f, ximg, img->pixmap, width, height); + x_destroy_x_image (ximg); + + /* Same for the mask. */ + if (mask_img) + { + x_put_x_image (f, mask_img, img->mask, img->width, img->height); + x_destroy_x_image (mask_img); + } + + UNBLOCK_INPUT; + UNGCPRO; + return 1; +} + +#endif /* HAVE_PNG != 0 */ + + + +/*********************************************************************** + JPEG + ***********************************************************************/ + +#if HAVE_JPEG + +/* Work around a warning about HAVE_STDLIB_H being redefined in + jconfig.h. */ +#ifdef HAVE_STDLIB_H +#define HAVE_STDLIB_H_1 +#undef HAVE_STDLIB_H +#endif /* HAVE_STLIB_H */ + +#include +#include +#include + +#ifdef HAVE_STLIB_H_1 +#define HAVE_STDLIB_H 1 +#endif + +static int jpeg_image_p P_ ((Lisp_Object object)); +static int jpeg_load P_ ((struct frame *f, struct image *img)); + +/* The symbol `jpeg' identifying images of this type. */ + +Lisp_Object Qjpeg; + +/* Indices of image specification fields in gs_format, below. */ + +enum jpeg_keyword_index +{ + JPEG_TYPE, + JPEG_DATA, + JPEG_FILE, + JPEG_ASCENT, + JPEG_MARGIN, + JPEG_RELIEF, + JPEG_ALGORITHM, + JPEG_HEURISTIC_MASK, + JPEG_LAST +}; + +/* Vector of image_keyword structures describing the format + of valid user-defined image specifications. */ + +static struct image_keyword jpeg_format[JPEG_LAST] = +{ + {":type", IMAGE_SYMBOL_VALUE, 1}, + {":data", IMAGE_STRING_VALUE, 0}, + {":file", IMAGE_STRING_VALUE, 0}, + {":ascent", IMAGE_NON_NEGATIVE_INTEGER_VALUE, 0}, + {":margin", IMAGE_POSITIVE_INTEGER_VALUE, 0}, + {":relief", IMAGE_INTEGER_VALUE, 0}, + {":algorithm", IMAGE_DONT_CHECK_VALUE_TYPE, 0}, + {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0} +}; + +/* Structure describing the image type `jpeg'. */ + +static struct image_type jpeg_type = +{ + &Qjpeg, + jpeg_image_p, + jpeg_load, + x_clear_image, + NULL +}; + + +/* Return non-zero if OBJECT is a valid JPEG image specification. */ + +static int +jpeg_image_p (object) + Lisp_Object object; +{ + struct image_keyword fmt[JPEG_LAST]; + + bcopy (jpeg_format, fmt, sizeof fmt); + + if (!parse_image_spec (object, fmt, JPEG_LAST, Qjpeg) + || (fmt[JPEG_ASCENT].count + && XFASTINT (fmt[JPEG_ASCENT].value) > 100)) + return 0; + + /* Must specify either the :data or :file keyword. */ + return fmt[JPEG_FILE].count + fmt[JPEG_DATA].count == 1; +} + + +struct my_jpeg_error_mgr +{ + struct jpeg_error_mgr pub; + jmp_buf setjmp_buffer; +}; + +static void +my_error_exit (cinfo) + j_common_ptr cinfo; +{ + struct my_jpeg_error_mgr *mgr = (struct my_jpeg_error_mgr *) cinfo->err; + longjmp (mgr->setjmp_buffer, 1); +} + +/* Init source method for JPEG data source manager. Called by + jpeg_read_header() before any data is actually read. See + libjpeg.doc from the JPEG lib distribution. */ + +static void +our_init_source (cinfo) + j_decompress_ptr cinfo; +{ +} + + +/* Fill input buffer method for JPEG data source manager. Called + whenever more data is needed. We read the whole image in one step, + so this only adds a fake end of input marker at the end. */ + +static boolean +our_fill_input_buffer (cinfo) + j_decompress_ptr cinfo; +{ + /* Insert a fake EOI marker. */ + struct jpeg_source_mgr *src = cinfo->src; + static JOCTET buffer[2]; + + buffer[0] = (JOCTET) 0xFF; + buffer[1] = (JOCTET) JPEG_EOI; + + src->next_input_byte = buffer; + src->bytes_in_buffer = 2; + return TRUE; +} + + +/* Method to skip over NUM_BYTES bytes in the image data. CINFO->src + is the JPEG data source manager. */ + +static void +our_skip_input_data (cinfo, num_bytes) + j_decompress_ptr cinfo; + long num_bytes; +{ + struct jpeg_source_mgr *src = (struct jpeg_source_mgr *) cinfo->src; + + if (src) + { + if (num_bytes > src->bytes_in_buffer) + ERREXIT (cinfo, JERR_INPUT_EOF); + + src->bytes_in_buffer -= num_bytes; + src->next_input_byte += num_bytes; + } +} + + +/* Method to terminate data source. Called by + jpeg_finish_decompress() after all data has been processed. */ + +static void +our_term_source (cinfo) + j_decompress_ptr cinfo; +{ +} + + +/* Set up the JPEG lib for reading an image from DATA which contains + LEN bytes. CINFO is the decompression info structure created for + reading the image. */ + +static void +jpeg_memory_src (cinfo, data, len) + j_decompress_ptr cinfo; + JOCTET *data; + unsigned int len; +{ + struct jpeg_source_mgr *src; + + if (cinfo->src == NULL) + { + /* First time for this JPEG object? */ + cinfo->src = (struct jpeg_source_mgr *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, + sizeof (struct jpeg_source_mgr)); + src = (struct jpeg_source_mgr *) cinfo->src; + src->next_input_byte = data; + } + + src = (struct jpeg_source_mgr *) cinfo->src; + src->init_source = our_init_source; + src->fill_input_buffer = our_fill_input_buffer; + src->skip_input_data = our_skip_input_data; + src->resync_to_restart = jpeg_resync_to_restart; /* Use default method. */ + src->term_source = our_term_source; + src->bytes_in_buffer = len; + src->next_input_byte = data; +} + + +/* Load image IMG for use on frame F. Patterned after example.c + from the JPEG lib. */ + +static int +jpeg_load (f, img) + struct frame *f; + struct image *img; +{ + struct jpeg_decompress_struct cinfo; + struct my_jpeg_error_mgr mgr; + Lisp_Object file, specified_file; + Lisp_Object specified_data; + FILE *fp = NULL; + JSAMPARRAY buffer; + int row_stride, x, y; + XImage *ximg = NULL; + int rc; + unsigned long *colors; + int width, height; + struct gcpro gcpro1; + + /* Open the JPEG file. */ + specified_file = image_spec_value (img->spec, QCfile, NULL); + specified_data = image_spec_value (img->spec, QCdata, NULL); + file = Qnil; + GCPRO1 (file); + + if (NILP (specified_data)) + { + file = x_find_image_file (specified_file); + if (!STRINGP (file)) + { + image_error ("Cannot find image file `%s'", specified_file, Qnil); + UNGCPRO; + return 0; + } + + fp = fopen (XSTRING (file)->data, "r"); + if (fp == NULL) + { + image_error ("Cannot open `%s'", file, Qnil); + UNGCPRO; + return 0; + } + } + + /* Customize libjpeg's error handling to call my_error_exit when an + error is detected. This function will perform a longjmp. */ + mgr.pub.error_exit = my_error_exit; + cinfo.err = jpeg_std_error (&mgr.pub); + + if ((rc = setjmp (mgr.setjmp_buffer)) != 0) + { + if (rc == 1) + { + /* Called from my_error_exit. Display a JPEG error. */ + char buffer[JMSG_LENGTH_MAX]; + cinfo.err->format_message ((j_common_ptr) &cinfo, buffer); + image_error ("Error reading JPEG image `%s': %s", img->spec, + build_string (buffer)); + } + + /* Close the input file and destroy the JPEG object. */ + if (fp) + fclose (fp); + jpeg_destroy_decompress (&cinfo); + + BLOCK_INPUT; + + /* If we already have an XImage, free that. */ + x_destroy_x_image (ximg); + + /* Free pixmap and colors. */ + x_clear_image (f, img); + + UNBLOCK_INPUT; + UNGCPRO; + return 0; + } + + /* Create the JPEG decompression object. Let it read from fp. + Read the JPEG image header. */ + jpeg_create_decompress (&cinfo); + + if (NILP (specified_data)) + jpeg_stdio_src (&cinfo, fp); + else + jpeg_memory_src (&cinfo, XSTRING (specified_data)->data, + STRING_BYTES (XSTRING (specified_data))); + + jpeg_read_header (&cinfo, TRUE); + + /* Customize decompression so that color quantization will be used. + Start decompression. */ + cinfo.quantize_colors = TRUE; + jpeg_start_decompress (&cinfo); + width = img->width = cinfo.output_width; + height = img->height = cinfo.output_height; + + BLOCK_INPUT; + + /* Create X image and pixmap. */ + if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, &img->pixmap)) + { + UNBLOCK_INPUT; + longjmp (mgr.setjmp_buffer, 2); + } + + /* Allocate colors. When color quantization is used, + cinfo.actual_number_of_colors has been set with the number of + colors generated, and cinfo.colormap is a two-dimensional array + of color indices in the range 0..cinfo.actual_number_of_colors. + No more than 255 colors will be generated. */ + { + int i, ir, ig, ib; + + if (cinfo.out_color_components > 2) + ir = 0, ig = 1, ib = 2; + else if (cinfo.out_color_components > 1) + ir = 0, ig = 1, ib = 0; + else + ir = 0, ig = 0, ib = 0; + + /* Use the color table mechanism because it handles colors that + cannot be allocated nicely. Such colors will be replaced with + a default color, and we don't have to care about which colors + can be freed safely, and which can't. */ + init_color_table (); + colors = (unsigned long *) alloca (cinfo.actual_number_of_colors + * sizeof *colors); + + for (i = 0; i < cinfo.actual_number_of_colors; ++i) + { + /* Multiply RGB values with 255 because X expects RGB values + in the range 0..0xffff. */ + int r = cinfo.colormap[ir][i] << 8; + int g = cinfo.colormap[ig][i] << 8; + int b = cinfo.colormap[ib][i] << 8; + colors[i] = lookup_rgb_color (f, r, g, b); + } + + /* Remember those colors actually allocated. */ + img->colors = colors_in_color_table (&img->ncolors); + free_color_table (); + } + + /* Read pixels. */ + row_stride = width * cinfo.output_components; + buffer = cinfo.mem->alloc_sarray ((j_common_ptr) &cinfo, JPOOL_IMAGE, + row_stride, 1); + for (y = 0; y < height; ++y) + { + jpeg_read_scanlines (&cinfo, buffer, 1); + for (x = 0; x < cinfo.output_width; ++x) + XPutPixel (ximg, x, y, colors[buffer[0][x]]); + } + + /* Clean up. */ + jpeg_finish_decompress (&cinfo); + jpeg_destroy_decompress (&cinfo); + if (fp) + fclose (fp); + + /* Put the image into the pixmap. */ + x_put_x_image (f, ximg, img->pixmap, width, height); + x_destroy_x_image (ximg); + UNBLOCK_INPUT; + UNGCPRO; + return 1; +} + +#endif /* HAVE_JPEG */ + + + +/*********************************************************************** + TIFF + ***********************************************************************/ + +#if HAVE_TIFF + +#include + +static int tiff_image_p P_ ((Lisp_Object object)); +static int tiff_load P_ ((struct frame *f, struct image *img)); + +/* The symbol `tiff' identifying images of this type. */ + +Lisp_Object Qtiff; + +/* Indices of image specification fields in tiff_format, below. */ + +enum tiff_keyword_index +{ + TIFF_TYPE, + TIFF_DATA, + TIFF_FILE, + TIFF_ASCENT, + TIFF_MARGIN, + TIFF_RELIEF, + TIFF_ALGORITHM, + TIFF_HEURISTIC_MASK, + TIFF_LAST +}; + +/* Vector of image_keyword structures describing the format + of valid user-defined image specifications. */ + +static struct image_keyword tiff_format[TIFF_LAST] = +{ + {":type", IMAGE_SYMBOL_VALUE, 1}, + {":data", IMAGE_STRING_VALUE, 0}, + {":file", IMAGE_STRING_VALUE, 0}, + {":ascent", IMAGE_NON_NEGATIVE_INTEGER_VALUE, 0}, + {":margin", IMAGE_POSITIVE_INTEGER_VALUE, 0}, + {":relief", IMAGE_INTEGER_VALUE, 0}, + {":algorithm", IMAGE_DONT_CHECK_VALUE_TYPE, 0}, + {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0} +}; + +/* Structure describing the image type `tiff'. */ + +static struct image_type tiff_type = +{ + &Qtiff, + tiff_image_p, + tiff_load, + x_clear_image, + NULL +}; + + +/* Return non-zero if OBJECT is a valid TIFF image specification. */ + +static int +tiff_image_p (object) + Lisp_Object object; +{ + struct image_keyword fmt[TIFF_LAST]; + bcopy (tiff_format, fmt, sizeof fmt); + + if (!parse_image_spec (object, fmt, TIFF_LAST, Qtiff) + || (fmt[TIFF_ASCENT].count + && XFASTINT (fmt[TIFF_ASCENT].value) > 100)) + return 0; + + /* Must specify either the :data or :file keyword. */ + return fmt[TIFF_FILE].count + fmt[TIFF_DATA].count == 1; +} + + +/* Reading from a memory buffer for TIFF images Based on the PNG + memory source, but we have to provide a lot of extra functions. + Blah. + + We really only need to implement read and seek, but I am not + convinced that the TIFF library is smart enough not to destroy + itself if we only hand it the function pointers we need to + override. */ + +typedef struct +{ + unsigned char *bytes; + size_t len; + int index; +} +tiff_memory_source; + +static size_t +tiff_read_from_memory (data, buf, size) + thandle_t data; + tdata_t buf; + tsize_t size; +{ + tiff_memory_source *src = (tiff_memory_source *) data; + + if (size > src->len - src->index) + return (size_t) -1; + bcopy (src->bytes + src->index, buf, size); + src->index += size; + return size; +} + +static size_t +tiff_write_from_memory (data, buf, size) + thandle_t data; + tdata_t buf; + tsize_t size; +{ + return (size_t) -1; +} + +static toff_t +tiff_seek_in_memory (data, off, whence) + thandle_t data; + toff_t off; + int whence; +{ + tiff_memory_source *src = (tiff_memory_source *) data; + int idx; + + switch (whence) + { + case SEEK_SET: /* Go from beginning of source. */ + idx = off; + break; + + case SEEK_END: /* Go from end of source. */ + idx = src->len + off; + break; + + case SEEK_CUR: /* Go from current position. */ + idx = src->index + off; + break; + + default: /* Invalid `whence'. */ + return -1; + } + + if (idx > src->len || idx < 0) + return -1; + + src->index = idx; + return src->index; +} + +static int +tiff_close_memory (data) + thandle_t data; +{ + /* NOOP */ + return 0; +} + +static int +tiff_mmap_memory (data, pbase, psize) + thandle_t data; + tdata_t *pbase; + toff_t *psize; +{ + /* It is already _IN_ memory. */ + return 0; +} + +static void +tiff_unmap_memory (data, base, size) + thandle_t data; + tdata_t base; + toff_t size; +{ + /* We don't need to do this. */ +} + +static toff_t +tiff_size_of_memory (data) + thandle_t data; +{ + return ((tiff_memory_source *) data)->len; +} + +/* Load TIFF image IMG for use on frame F. Value is non-zero if + successful. */ + +static int +tiff_load (f, img) + struct frame *f; + struct image *img; +{ + Lisp_Object file, specified_file; + Lisp_Object specified_data; + TIFF *tiff; + int width, height, x, y; + uint32 *buf; + int rc; + XImage *ximg; + struct gcpro gcpro1; + tiff_memory_source memsrc; + + specified_file = image_spec_value (img->spec, QCfile, NULL); + specified_data = image_spec_value (img->spec, QCdata, NULL); + file = Qnil; + GCPRO1 (file); + + if (NILP (specified_data)) + { + /* Read from a file */ + file = x_find_image_file (specified_file); + if (!STRINGP (file)) + { + image_error ("Cannot find image file `%s'", file, Qnil); + UNGCPRO; + return 0; + } + + /* Try to open the image file. */ + tiff = TIFFOpen (XSTRING (file)->data, "r"); + if (tiff == NULL) + { + image_error ("Cannot open `%s'", file, Qnil); + UNGCPRO; + return 0; + } + } + else + { + /* Memory source! */ + memsrc.bytes = XSTRING (specified_data)->data; + memsrc.len = STRING_BYTES (XSTRING (specified_data)); + memsrc.index = 0; + + tiff = TIFFClientOpen ("memory_source", "r", &memsrc, + (TIFFReadWriteProc) tiff_read_from_memory, + (TIFFReadWriteProc) tiff_write_from_memory, + tiff_seek_in_memory, + tiff_close_memory, + tiff_size_of_memory, + tiff_mmap_memory, + tiff_unmap_memory); + + if (!tiff) + { + image_error ("Cannot open memory source for `%s'", img->spec, Qnil); + UNGCPRO; + return 0; + } + } + + /* Get width and height of the image, and allocate a raster buffer + of width x height 32-bit values. */ + TIFFGetField (tiff, TIFFTAG_IMAGEWIDTH, &width); + TIFFGetField (tiff, TIFFTAG_IMAGELENGTH, &height); + buf = (uint32 *) xmalloc (width * height * sizeof *buf); + + rc = TIFFReadRGBAImage (tiff, width, height, buf, 0); + TIFFClose (tiff); + if (!rc) + { + image_error ("Error reading TIFF image `%s'", img->spec, Qnil); + xfree (buf); + UNGCPRO; + return 0; + } + + BLOCK_INPUT; + + /* Create the X image and pixmap. */ + if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, &img->pixmap)) + { + UNBLOCK_INPUT; + xfree (buf); + UNGCPRO; + return 0; + } + + /* Initialize the color table. */ + init_color_table (); + + /* Process the pixel raster. Origin is in the lower-left corner. */ + for (y = 0; y < height; ++y) + { + uint32 *row = buf + y * width; + + for (x = 0; x < width; ++x) + { + uint32 abgr = row[x]; + int r = TIFFGetR (abgr) << 8; + int g = TIFFGetG (abgr) << 8; + int b = TIFFGetB (abgr) << 8; + XPutPixel (ximg, x, height - 1 - y, lookup_rgb_color (f, r, g, b)); + } + } + + /* Remember the colors allocated for the image. Free the color table. */ + img->colors = colors_in_color_table (&img->ncolors); + free_color_table (); + + /* Put the image into the pixmap, then free the X image and its buffer. */ + x_put_x_image (f, ximg, img->pixmap, width, height); + x_destroy_x_image (ximg); + xfree (buf); + UNBLOCK_INPUT; + + img->width = width; + img->height = height; + + UNGCPRO; + return 1; +} + +#endif /* HAVE_TIFF != 0 */ + + + +/*********************************************************************** + GIF + ***********************************************************************/ + +#if HAVE_GIF + +#include + +static int gif_image_p P_ ((Lisp_Object object)); +static int gif_load P_ ((struct frame *f, struct image *img)); + +/* The symbol `gif' identifying images of this type. */ + +Lisp_Object Qgif; + +/* Indices of image specification fields in gif_format, below. */ + +enum gif_keyword_index +{ + GIF_TYPE, + GIF_DATA, + GIF_FILE, + GIF_ASCENT, + GIF_MARGIN, + GIF_RELIEF, + GIF_ALGORITHM, + GIF_HEURISTIC_MASK, + GIF_IMAGE, + GIF_LAST +}; + +/* Vector of image_keyword structures describing the format + of valid user-defined image specifications. */ + +static struct image_keyword gif_format[GIF_LAST] = +{ + {":type", IMAGE_SYMBOL_VALUE, 1}, + {":data", IMAGE_STRING_VALUE, 0}, + {":file", IMAGE_STRING_VALUE, 0}, + {":ascent", IMAGE_NON_NEGATIVE_INTEGER_VALUE, 0}, + {":margin", IMAGE_POSITIVE_INTEGER_VALUE, 0}, + {":relief", IMAGE_INTEGER_VALUE, 0}, + {":algorithm", IMAGE_DONT_CHECK_VALUE_TYPE, 0}, + {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0}, + {":image", IMAGE_NON_NEGATIVE_INTEGER_VALUE, 0} +}; + +/* Structure describing the image type `gif'. */ + +static struct image_type gif_type = +{ + &Qgif, + gif_image_p, + gif_load, + x_clear_image, + NULL +}; + +/* Return non-zero if OBJECT is a valid GIF image specification. */ + +static int +gif_image_p (object) + Lisp_Object object; +{ + struct image_keyword fmt[GIF_LAST]; + bcopy (gif_format, fmt, sizeof fmt); + + if (!parse_image_spec (object, fmt, GIF_LAST, Qgif) + || (fmt[GIF_ASCENT].count + && XFASTINT (fmt[GIF_ASCENT].value) > 100)) + return 0; + + /* Must specify either the :data or :file keyword. */ + return fmt[GIF_FILE].count + fmt[GIF_DATA].count == 1; +} + +/* Reading a GIF image from memory + Based on the PNG memory stuff to a certain extent. */ + +typedef struct +{ + unsigned char *bytes; + size_t len; + int index; +} +gif_memory_source; + +/* Make the current memory source available to gif_read_from_memory. + It's done this way because not all versions of libungif support + a UserData field in the GifFileType structure. */ +static gif_memory_source *current_gif_memory_src; + +static int +gif_read_from_memory (file, buf, len) + GifFileType *file; + GifByteType *buf; + int len; +{ + gif_memory_source *src = current_gif_memory_src; + + if (len > src->len - src->index) + return -1; + + bcopy (src->bytes + src->index, buf, len); + src->index += len; + return len; +} + + +/* Load GIF image IMG for use on frame F. Value is non-zero if + successful. */ + +static int +gif_load (f, img) + struct frame *f; + struct image *img; +{ + Lisp_Object file, specified_file; + Lisp_Object specified_data; + int rc, width, height, x, y, i; + XImage *ximg; + ColorMapObject *gif_color_map; + unsigned long pixel_colors[256]; + GifFileType *gif; + struct gcpro gcpro1; + Lisp_Object image; + int ino, image_left, image_top, image_width, image_height; + gif_memory_source memsrc; + unsigned char *raster; + + specified_file = image_spec_value (img->spec, QCfile, NULL); + specified_data = image_spec_value (img->spec, QCdata, NULL); + file = Qnil; + GCPRO1 (file); + + if (NILP (specified_data)) + { + file = x_find_image_file (specified_file); + if (!STRINGP (file)) + { + image_error ("Cannot find image file `%s'", specified_file, Qnil); + UNGCPRO; + return 0; + } + + /* Open the GIF file. */ + gif = DGifOpenFileName (XSTRING (file)->data); + if (gif == NULL) + { + image_error ("Cannot open `%s'", file, Qnil); + UNGCPRO; + return 0; + } + } + else + { + /* Read from memory! */ + current_gif_memory_src = &memsrc; + memsrc.bytes = XSTRING (specified_data)->data; + memsrc.len = STRING_BYTES (XSTRING (specified_data)); + memsrc.index = 0; + + gif = DGifOpen(&memsrc, gif_read_from_memory); + if (!gif) + { + image_error ("Cannot open memory source `%s'", img->spec, Qnil); + UNGCPRO; + return 0; + } + } + + /* Read entire contents. */ + rc = DGifSlurp (gif); + if (rc == GIF_ERROR) + { + image_error ("Error reading `%s'", img->spec, Qnil); + DGifCloseFile (gif); + UNGCPRO; + return 0; + } + + image = image_spec_value (img->spec, QCindex, NULL); + ino = INTEGERP (image) ? XFASTINT (image) : 0; + if (ino >= gif->ImageCount) + { + image_error ("Invalid image number `%s' in image `%s'", + image, img->spec); + DGifCloseFile (gif); + UNGCPRO; + return 0; + } + + width = img->width = gif->SWidth; + height = img->height = gif->SHeight; + + BLOCK_INPUT; + + /* Create the X image and pixmap. */ + if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, &img->pixmap)) + { + UNBLOCK_INPUT; + DGifCloseFile (gif); + UNGCPRO; + return 0; + } + + /* Allocate colors. */ + gif_color_map = gif->SavedImages[ino].ImageDesc.ColorMap; + if (!gif_color_map) + gif_color_map = gif->SColorMap; + init_color_table (); + bzero (pixel_colors, sizeof pixel_colors); + + for (i = 0; i < gif_color_map->ColorCount; ++i) + { + int r = gif_color_map->Colors[i].Red << 8; + int g = gif_color_map->Colors[i].Green << 8; + int b = gif_color_map->Colors[i].Blue << 8; + pixel_colors[i] = lookup_rgb_color (f, r, g, b); + } + + img->colors = colors_in_color_table (&img->ncolors); + free_color_table (); + + /* Clear the part of the screen image that are not covered by + the image from the GIF file. Full animated GIF support + requires more than can be done here (see the gif89 spec, + disposal methods). Let's simply assume that the part + not covered by a sub-image is in the frame's background color. */ + image_top = gif->SavedImages[ino].ImageDesc.Top; + image_left = gif->SavedImages[ino].ImageDesc.Left; + image_width = gif->SavedImages[ino].ImageDesc.Width; + image_height = gif->SavedImages[ino].ImageDesc.Height; + + for (y = 0; y < image_top; ++y) + for (x = 0; x < width; ++x) + XPutPixel (ximg, x, y, FRAME_BACKGROUND_PIXEL (f)); + + for (y = image_top + image_height; y < height; ++y) + for (x = 0; x < width; ++x) + XPutPixel (ximg, x, y, FRAME_BACKGROUND_PIXEL (f)); + + for (y = image_top; y < image_top + image_height; ++y) + { + for (x = 0; x < image_left; ++x) + XPutPixel (ximg, x, y, FRAME_BACKGROUND_PIXEL (f)); + for (x = image_left + image_width; x < width; ++x) + XPutPixel (ximg, x, y, FRAME_BACKGROUND_PIXEL (f)); + } + + /* Read the GIF image into the X image. We use a local variable + `raster' here because RasterBits below is a char *, and invites + problems with bytes >= 0x80. */ + raster = (unsigned char *) gif->SavedImages[ino].RasterBits; + + if (gif->SavedImages[ino].ImageDesc.Interlace) + { + static int interlace_start[] = {0, 4, 2, 1}; + static int interlace_increment[] = {8, 8, 4, 2}; + int pass, inc; + int row = interlace_start[0]; + + pass = 0; + + for (y = 0; y < image_height; y++) + { + if (row >= image_height) + { + row = interlace_start[++pass]; + while (row >= image_height) + row = interlace_start[++pass]; + } + + for (x = 0; x < image_width; x++) + { + int i = raster[(y * image_width) + x]; + XPutPixel (ximg, x + image_left, row + image_top, + pixel_colors[i]); + } + + row += interlace_increment[pass]; + } + } + else + { + for (y = 0; y < image_height; ++y) + for (x = 0; x < image_width; ++x) + { + int i = raster[y * image_width + x]; + XPutPixel (ximg, x + image_left, y + image_top, pixel_colors[i]); + } + } + + DGifCloseFile (gif); + + /* Put the image into the pixmap, then free the X image and its buffer. */ + x_put_x_image (f, ximg, img->pixmap, width, height); + x_destroy_x_image (ximg); + UNBLOCK_INPUT; + + UNGCPRO; + return 1; +} + +#endif /* HAVE_GIF != 0 */ + + + +/*********************************************************************** + Ghostscript + ***********************************************************************/ + +static int gs_image_p P_ ((Lisp_Object object)); +static int gs_load P_ ((struct frame *f, struct image *img)); +static void gs_clear_image P_ ((struct frame *f, struct image *img)); + +/* The symbol `postscript' identifying images of this type. */ + +Lisp_Object Qpostscript; + +/* Keyword symbols. */ + +Lisp_Object QCloader, QCbounding_box, QCpt_width, QCpt_height; + +/* Indices of image specification fields in gs_format, below. */ + +enum gs_keyword_index +{ + GS_TYPE, + GS_PT_WIDTH, + GS_PT_HEIGHT, + GS_FILE, + GS_LOADER, + GS_BOUNDING_BOX, + GS_ASCENT, + GS_MARGIN, + GS_RELIEF, + GS_ALGORITHM, + GS_HEURISTIC_MASK, + GS_LAST +}; + +/* Vector of image_keyword structures describing the format + of valid user-defined image specifications. */ + +static struct image_keyword gs_format[GS_LAST] = +{ + {":type", IMAGE_SYMBOL_VALUE, 1}, + {":pt-width", IMAGE_POSITIVE_INTEGER_VALUE, 1}, + {":pt-height", IMAGE_POSITIVE_INTEGER_VALUE, 1}, + {":file", IMAGE_STRING_VALUE, 1}, + {":loader", IMAGE_FUNCTION_VALUE, 0}, + {":bounding-box", IMAGE_DONT_CHECK_VALUE_TYPE, 1}, + {":ascent", IMAGE_NON_NEGATIVE_INTEGER_VALUE, 0}, + {":margin", IMAGE_POSITIVE_INTEGER_VALUE, 0}, + {":relief", IMAGE_INTEGER_VALUE, 0}, + {":algorithm", IMAGE_DONT_CHECK_VALUE_TYPE, 0}, + {":heuristic-mask", IMAGE_DONT_CHECK_VALUE_TYPE, 0} +}; + +/* Structure describing the image type `ghostscript'. */ + +static struct image_type gs_type = +{ + &Qpostscript, + gs_image_p, + gs_load, + gs_clear_image, + NULL +}; + + +/* Free X resources of Ghostscript image IMG which is used on frame F. */ + +static void +gs_clear_image (f, img) + struct frame *f; + struct image *img; +{ + /* IMG->data.ptr_val may contain a recorded colormap. */ + xfree (img->data.ptr_val); + x_clear_image (f, img); +} + + +/* Return non-zero if OBJECT is a valid Ghostscript image + specification. */ + +static int +gs_image_p (object) + Lisp_Object object; +{ + struct image_keyword fmt[GS_LAST]; + Lisp_Object tem; + int i; + + bcopy (gs_format, fmt, sizeof fmt); + + if (!parse_image_spec (object, fmt, GS_LAST, Qpostscript) + || (fmt[GS_ASCENT].count + && XFASTINT (fmt[GS_ASCENT].value) > 100)) + return 0; + + /* Bounding box must be a list or vector containing 4 integers. */ + tem = fmt[GS_BOUNDING_BOX].value; + if (CONSP (tem)) + { + for (i = 0; i < 4; ++i, tem = XCDR (tem)) + if (!CONSP (tem) || !INTEGERP (XCAR (tem))) + return 0; + if (!NILP (tem)) + return 0; + } + else if (VECTORP (tem)) + { + if (XVECTOR (tem)->size != 4) + return 0; + for (i = 0; i < 4; ++i) + if (!INTEGERP (XVECTOR (tem)->contents[i])) + return 0; + } + else + return 0; + + return 1; +} + + +/* Load Ghostscript image IMG for use on frame F. Value is non-zero + if successful. */ + +static int +gs_load (f, img) + struct frame *f; + struct image *img; +{ + char buffer[100]; + Lisp_Object window_and_pixmap_id = Qnil, loader, pt_height, pt_width; + struct gcpro gcpro1, gcpro2; + Lisp_Object frame; + double in_width, in_height; + Lisp_Object pixel_colors = Qnil; + + /* Compute pixel size of pixmap needed from the given size in the + image specification. Sizes in the specification are in pt. 1 pt + = 1/72 in, xdpi and ydpi are stored in the frame's X display + info. */ + pt_width = image_spec_value (img->spec, QCpt_width, NULL); + in_width = XFASTINT (pt_width) / 72.0; + img->width = in_width * FRAME_X_DISPLAY_INFO (f)->resx; + pt_height = image_spec_value (img->spec, QCpt_height, NULL); + in_height = XFASTINT (pt_height) / 72.0; + img->height = in_height * FRAME_X_DISPLAY_INFO (f)->resy; + + /* Create the pixmap. */ + BLOCK_INPUT; + xassert (img->pixmap == 0); + img->pixmap = XCreatePixmap (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), + img->width, img->height, + DefaultDepthOfScreen (FRAME_X_SCREEN (f))); + UNBLOCK_INPUT; + + if (!img->pixmap) + { + image_error ("Unable to create pixmap for `%s'", img->spec, Qnil); + return 0; + } + + /* Call the loader to fill the pixmap. It returns a process object + if successful. We do not record_unwind_protect here because + other places in redisplay like calling window scroll functions + don't either. Let the Lisp loader use `unwind-protect' instead. */ + GCPRO2 (window_and_pixmap_id, pixel_colors); + + sprintf (buffer, "%lu %lu", + (unsigned long) FRAME_X_WINDOW (f), + (unsigned long) img->pixmap); + window_and_pixmap_id = build_string (buffer); + + sprintf (buffer, "%lu %lu", + FRAME_FOREGROUND_PIXEL (f), + FRAME_BACKGROUND_PIXEL (f)); + pixel_colors = build_string (buffer); + + XSETFRAME (frame, f); + loader = image_spec_value (img->spec, QCloader, NULL); + if (NILP (loader)) + loader = intern ("gs-load-image"); + + img->data.lisp_val = call6 (loader, frame, img->spec, + make_number (img->width), + make_number (img->height), + window_and_pixmap_id, + pixel_colors); + UNGCPRO; + return PROCESSP (img->data.lisp_val); +} + + +/* Kill the Ghostscript process that was started to fill PIXMAP on + frame F. Called from XTread_socket when receiving an event + telling Emacs that Ghostscript has finished drawing. */ + +void +x_kill_gs_process (pixmap, f) + Pixmap pixmap; + struct frame *f; +{ + struct image_cache *c = FRAME_X_IMAGE_CACHE (f); + int class, i; + struct image *img; + + /* Find the image containing PIXMAP. */ + for (i = 0; i < c->used; ++i) + if (c->images[i]->pixmap == pixmap) + break; + + /* Kill the GS process. We should have found PIXMAP in the image + cache and its image should contain a process object. */ + xassert (i < c->used); + img = c->images[i]; + xassert (PROCESSP (img->data.lisp_val)); + Fkill_process (img->data.lisp_val, Qnil); + img->data.lisp_val = Qnil; + + /* On displays with a mutable colormap, figure out the colors + allocated for the image by looking at the pixels of an XImage for + img->pixmap. */ + class = FRAME_X_DISPLAY_INFO (f)->visual->class; + if (class != StaticColor && class != StaticGray && class != TrueColor) + { + XImage *ximg; + + BLOCK_INPUT; + + /* Try to get an XImage for img->pixmep. */ + ximg = XGetImage (FRAME_X_DISPLAY (f), img->pixmap, + 0, 0, img->width, img->height, ~0, ZPixmap); + if (ximg) + { + int x, y; + + /* Initialize the color table. */ + init_color_table (); + + /* For each pixel of the image, look its color up in the + color table. After having done so, the color table will + contain an entry for each color used by the image. */ + for (y = 0; y < img->height; ++y) + for (x = 0; x < img->width; ++x) + { + unsigned long pixel = XGetPixel (ximg, x, y); + lookup_pixel_color (f, pixel); + } + + /* Record colors in the image. Free color table and XImage. */ + img->colors = colors_in_color_table (&img->ncolors); + free_color_table (); + XDestroyImage (ximg); + +#if 0 /* This doesn't seem to be the case. If we free the colors + here, we get a BadAccess later in x_clear_image when + freeing the colors. */ + /* We have allocated colors once, but Ghostscript has also + allocated colors on behalf of us. So, to get the + reference counts right, free them once. */ + if (img->ncolors) + x_free_colors (f, img->colors, img->ncolors); +#endif + } + else + image_error ("Cannot get X image of `%s'; colors will not be freed", + img->spec, Qnil); + + UNBLOCK_INPUT; + } +} + + + +/*********************************************************************** + Window properties + ***********************************************************************/ + +DEFUN ("x-change-window-property", Fx_change_window_property, + Sx_change_window_property, 2, 3, 0, + "Change window property PROP to VALUE on the X window of FRAME.\n\ +PROP and VALUE must be strings. FRAME nil or omitted means use the\n\ +selected frame. Value is VALUE.") + (prop, value, frame) + Lisp_Object frame, prop, value; +{ + struct frame *f = check_x_frame (frame); + Atom prop_atom; + + CHECK_STRING (prop, 1); + CHECK_STRING (value, 2); + + BLOCK_INPUT; + prop_atom = XInternAtom (FRAME_X_DISPLAY (f), XSTRING (prop)->data, False); + XChangeProperty (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), + prop_atom, XA_STRING, 8, PropModeReplace, + XSTRING (value)->data, XSTRING (value)->size); + + /* Make sure the property is set when we return. */ + XFlush (FRAME_X_DISPLAY (f)); + UNBLOCK_INPUT; + + return value; +} + + +DEFUN ("x-delete-window-property", Fx_delete_window_property, + Sx_delete_window_property, 1, 2, 0, + "Remove window property PROP from X window of FRAME.\n\ +FRAME nil or omitted means use the selected frame. Value is PROP.") + (prop, frame) + Lisp_Object prop, frame; +{ + struct frame *f = check_x_frame (frame); + Atom prop_atom; + + CHECK_STRING (prop, 1); + BLOCK_INPUT; + prop_atom = XInternAtom (FRAME_X_DISPLAY (f), XSTRING (prop)->data, False); + XDeleteProperty (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), prop_atom); + + /* Make sure the property is removed when we return. */ + XFlush (FRAME_X_DISPLAY (f)); + UNBLOCK_INPUT; + + return prop; +} + + +DEFUN ("x-window-property", Fx_window_property, Sx_window_property, + 1, 2, 0, + "Value is the value of window property PROP on FRAME.\n\ +If FRAME is nil or omitted, use the selected frame. Value is nil\n\ +if FRAME hasn't a property with name PROP or if PROP has no string\n\ +value.") + (prop, frame) + Lisp_Object prop, frame; +{ + struct frame *f = check_x_frame (frame); + Atom prop_atom; + int rc; + Lisp_Object prop_value = Qnil; + char *tmp_data = NULL; + Atom actual_type; + int actual_format; + unsigned long actual_size, bytes_remaining; + + CHECK_STRING (prop, 1); + BLOCK_INPUT; + prop_atom = XInternAtom (FRAME_X_DISPLAY (f), XSTRING (prop)->data, False); + rc = XGetWindowProperty (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), + prop_atom, 0, 0, False, XA_STRING, + &actual_type, &actual_format, &actual_size, + &bytes_remaining, (unsigned char **) &tmp_data); + if (rc == Success) + { + int size = bytes_remaining; + + XFree (tmp_data); + tmp_data = NULL; + + rc = XGetWindowProperty (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), + prop_atom, 0, bytes_remaining, + False, XA_STRING, + &actual_type, &actual_format, + &actual_size, &bytes_remaining, + (unsigned char **) &tmp_data); + if (rc == Success) + prop_value = make_string (tmp_data, size); + + XFree (tmp_data); + } + + UNBLOCK_INPUT; + return prop_value; +} + + + +/*********************************************************************** + Busy cursor + ***********************************************************************/ + +/* If non-null, an asynchronous timer that, when it expires, displays + a busy cursor on all frames. */ + +static struct atimer *busy_cursor_atimer; + +/* Non-zero means a busy cursor is currently shown. */ + +static int busy_cursor_shown_p; + +/* Number of seconds to wait before displaying a busy cursor. */ + +static Lisp_Object Vbusy_cursor_delay; + +/* Default number of seconds to wait before displaying a busy + cursor. */ + +#define DEFAULT_BUSY_CURSOR_DELAY 1 + +/* Function prototypes. */ + +static void show_busy_cursor P_ ((struct atimer *)); +static void hide_busy_cursor P_ ((void)); + + +/* Cancel a currently active busy-cursor timer, and start a new one. */ + +void +start_busy_cursor () +{ + EMACS_TIME delay; + int secs, usecs = 0; + + cancel_busy_cursor (); + + if (INTEGERP (Vbusy_cursor_delay) + && XINT (Vbusy_cursor_delay) > 0) + secs = XFASTINT (Vbusy_cursor_delay); + else if (FLOATP (Vbusy_cursor_delay) + && XFLOAT_DATA (Vbusy_cursor_delay) > 0) + { + Lisp_Object tem; + tem = Ftruncate (Vbusy_cursor_delay, Qnil); + secs = XFASTINT (tem); + usecs = (XFLOAT_DATA (Vbusy_cursor_delay) - secs) * 1000000; + } + else + secs = DEFAULT_BUSY_CURSOR_DELAY; + + EMACS_SET_SECS_USECS (delay, secs, usecs); + busy_cursor_atimer = start_atimer (ATIMER_RELATIVE, delay, + show_busy_cursor, NULL); +} + + +/* Cancel the busy cursor timer if active, hide a busy cursor if + shown. */ + +void +cancel_busy_cursor () +{ + if (busy_cursor_atimer) + { + cancel_atimer (busy_cursor_atimer); + busy_cursor_atimer = NULL; + } + + if (busy_cursor_shown_p) + hide_busy_cursor (); +} + + +/* Timer function of busy_cursor_atimer. TIMER is equal to + busy_cursor_atimer. + + Display a busy cursor on all frames by mapping the frames' + busy_window. Set the busy_p flag in the frames' output_data.x + structure to indicate that a busy cursor is shown on the + frames. */ + +static void +show_busy_cursor (timer) + struct atimer *timer; +{ + /* The timer implementation will cancel this timer automatically + after this function has run. Set busy_cursor_atimer to null + so that we know the timer doesn't have to be canceled. */ + busy_cursor_atimer = NULL; + + if (!busy_cursor_shown_p) + { + Lisp_Object rest, frame; + + BLOCK_INPUT; + + FOR_EACH_FRAME (rest, frame) + if (FRAME_X_P (XFRAME (frame))) + { + struct frame *f = XFRAME (frame); + + f->output_data.x->busy_p = 1; + + if (!f->output_data.x->busy_window) + { + unsigned long mask = CWCursor; + XSetWindowAttributes attrs; + + attrs.cursor = f->output_data.x->busy_cursor; + + f->output_data.x->busy_window + = XCreateWindow (FRAME_X_DISPLAY (f), + FRAME_OUTER_WINDOW (f), + 0, 0, 32000, 32000, 0, 0, + InputOnly, + CopyFromParent, + mask, &attrs); + } + + XMapRaised (FRAME_X_DISPLAY (f), f->output_data.x->busy_window); + XFlush (FRAME_X_DISPLAY (f)); + } + + busy_cursor_shown_p = 1; + UNBLOCK_INPUT; + } +} + + +/* Hide the busy cursor on all frames, if it is currently shown. */ + +static void +hide_busy_cursor () +{ + if (busy_cursor_shown_p) + { + Lisp_Object rest, frame; + + BLOCK_INPUT; + FOR_EACH_FRAME (rest, frame) + { + struct frame *f = XFRAME (frame); + + if (FRAME_X_P (f) + /* Watch out for newly created frames. */ + && f->output_data.x->busy_window) + { + XUnmapWindow (FRAME_X_DISPLAY (f), f->output_data.x->busy_window); + /* Sync here because XTread_socket looks at the busy_p flag + that is reset to zero below. */ + XSync (FRAME_X_DISPLAY (f), False); + f->output_data.x->busy_p = 0; + } + } + + busy_cursor_shown_p = 0; + UNBLOCK_INPUT; + } +} + + + +/*********************************************************************** + Tool tips + ***********************************************************************/ + +static Lisp_Object x_create_tip_frame P_ ((struct x_display_info *, + Lisp_Object)); + +/* The frame of a currently visible tooltip, or null. */ + +struct frame *tip_frame; + +/* If non-nil, a timer started that hides the last tooltip when it + fires. */ + +Lisp_Object tip_timer; +Window tip_window; + +/* Create a frame for a tooltip on the display described by DPYINFO. + PARMS is a list of frame parameters. Value is the frame. */ + +static Lisp_Object +x_create_tip_frame (dpyinfo, parms) + struct x_display_info *dpyinfo; + Lisp_Object parms; +{ + struct frame *f; + Lisp_Object frame, tem; + Lisp_Object name; + long window_prompting = 0; + int width, height; + int count = specpdl_ptr - specpdl; + struct gcpro gcpro1, gcpro2, gcpro3; + struct kboard *kb; + + check_x (); + + /* Use this general default value to start with until we know if + this frame has a specified name. */ + Vx_resource_name = Vinvocation_name; + +#ifdef MULTI_KBOARD + kb = dpyinfo->kboard; +#else + kb = &the_only_kboard; +#endif + + /* Get the name of the frame to use for resource lookup. */ + name = x_get_arg (dpyinfo, parms, Qname, "name", "Name", RES_TYPE_STRING); + if (!STRINGP (name) + && !EQ (name, Qunbound) + && !NILP (name)) + error ("Invalid frame name--not a string or nil"); + Vx_resource_name = name; + + frame = Qnil; + GCPRO3 (parms, name, frame); + tip_frame = f = make_frame (1); + XSETFRAME (frame, f); + FRAME_CAN_HAVE_SCROLL_BARS (f) = 0; + + f->output_method = output_x_window; + f->output_data.x = (struct x_output *) xmalloc (sizeof (struct x_output)); + bzero (f->output_data.x, sizeof (struct x_output)); + f->output_data.x->icon_bitmap = -1; + f->output_data.x->fontset = -1; + f->icon_name = Qnil; + FRAME_X_DISPLAY_INFO (f) = dpyinfo; +#ifdef MULTI_KBOARD + FRAME_KBOARD (f) = kb; +#endif + f->output_data.x->parent_desc = FRAME_X_DISPLAY_INFO (f)->root_window; + f->output_data.x->explicit_parent = 0; + + /* Set the name; the functions to which we pass f expect the name to + be set. */ + if (EQ (name, Qunbound) || NILP (name)) + { + f->name = build_string (dpyinfo->x_id_name); + f->explicit_name = 0; + } + else + { + f->name = name; + f->explicit_name = 1; + /* use the frame's title when getting resources for this frame. */ + specbind (Qx_resource_name, name); + } + + /* Create fontsets from `global_fontset_alist' before handling fonts. */ + for (tem = Vglobal_fontset_alist; CONSP (tem); tem = XCDR (tem)) + fs_register_fontset (f, XCAR (tem)); + + /* Extract the window parameters from the supplied values + that are needed to determine window geometry. */ + { + Lisp_Object font; + + font = x_get_arg (dpyinfo, parms, Qfont, "font", "Font", RES_TYPE_STRING); + + BLOCK_INPUT; + /* First, try whatever font the caller has specified. */ + if (STRINGP (font)) + { + tem = Fquery_fontset (font, Qnil); + if (STRINGP (tem)) + font = x_new_fontset (f, XSTRING (tem)->data); + else + font = x_new_font (f, XSTRING (font)->data); + } + + /* Try out a font which we hope has bold and italic variations. */ + if (!STRINGP (font)) + font = x_new_font (f, "-adobe-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-1"); + if (!STRINGP (font)) + font = x_new_font (f, "-misc-fixed-medium-r-normal-*-*-140-*-*-c-*-iso8859-1"); + if (! STRINGP (font)) + font = x_new_font (f, "-*-*-medium-r-normal-*-*-140-*-*-c-*-iso8859-1"); + if (! STRINGP (font)) + /* This was formerly the first thing tried, but it finds too many fonts + and takes too long. */ + font = x_new_font (f, "-*-*-medium-r-*-*-*-*-*-*-c-*-iso8859-1"); + /* If those didn't work, look for something which will at least work. */ + if (! STRINGP (font)) + font = x_new_font (f, "-*-fixed-*-*-*-*-*-140-*-*-c-*-iso8859-1"); + UNBLOCK_INPUT; + if (! STRINGP (font)) + font = build_string ("fixed"); + + x_default_parameter (f, parms, Qfont, font, + "font", "Font", RES_TYPE_STRING); + } + + x_default_parameter (f, parms, Qborder_width, make_number (2), + "borderWidth", "BorderWidth", RES_TYPE_NUMBER); + + /* This defaults to 2 in order to match xterm. We recognize either + internalBorderWidth or internalBorder (which is what xterm calls + it). */ + if (NILP (Fassq (Qinternal_border_width, parms))) + { + Lisp_Object value; + + value = x_get_arg (dpyinfo, parms, Qinternal_border_width, + "internalBorder", "internalBorder", RES_TYPE_NUMBER); + if (! EQ (value, Qunbound)) + parms = Fcons (Fcons (Qinternal_border_width, value), + parms); + } + + x_default_parameter (f, parms, Qinternal_border_width, make_number (1), + "internalBorderWidth", "internalBorderWidth", + RES_TYPE_NUMBER); + + /* Also do the stuff which must be set before the window exists. */ + x_default_parameter (f, parms, Qforeground_color, build_string ("black"), + "foreground", "Foreground", RES_TYPE_STRING); + x_default_parameter (f, parms, Qbackground_color, build_string ("white"), + "background", "Background", RES_TYPE_STRING); + x_default_parameter (f, parms, Qmouse_color, build_string ("black"), + "pointerColor", "Foreground", RES_TYPE_STRING); + x_default_parameter (f, parms, Qcursor_color, build_string ("black"), + "cursorColor", "Foreground", RES_TYPE_STRING); + x_default_parameter (f, parms, Qborder_color, build_string ("black"), + "borderColor", "BorderColor", RES_TYPE_STRING); + + /* Init faces before x_default_parameter is called for scroll-bar + parameters because that function calls x_set_scroll_bar_width, + which calls change_frame_size, which calls Fset_window_buffer, + which runs hooks, which call Fvertical_motion. At the end, we + end up in init_iterator with a null face cache, which should not + happen. */ + init_frame_faces (f); + + f->output_data.x->parent_desc = FRAME_X_DISPLAY_INFO (f)->root_window; + window_prompting = x_figure_window_size (f, parms); + + if (window_prompting & XNegative) + { + if (window_prompting & YNegative) + f->output_data.x->win_gravity = SouthEastGravity; + else + f->output_data.x->win_gravity = NorthEastGravity; + } + else + { + if (window_prompting & YNegative) + f->output_data.x->win_gravity = SouthWestGravity; + else + f->output_data.x->win_gravity = NorthWestGravity; + } + + f->output_data.x->size_hint_flags = window_prompting; + { + XSetWindowAttributes attrs; + unsigned long mask; + + BLOCK_INPUT; + mask = CWBackPixel | CWOverrideRedirect | CWSaveUnder | CWEventMask; + /* Window managers look at the override-redirect flag to determine + whether or net to give windows a decoration (Xlib spec, chapter + 3.2.8). */ + attrs.override_redirect = True; + attrs.save_under = True; + attrs.background_pixel = FRAME_BACKGROUND_PIXEL (f); + /* Arrange for getting MapNotify and UnmapNotify events. */ + attrs.event_mask = StructureNotifyMask; + tip_window + = FRAME_X_WINDOW (f) + = XCreateWindow (FRAME_X_DISPLAY (f), + FRAME_X_DISPLAY_INFO (f)->root_window, + /* x, y, width, height */ + 0, 0, 1, 1, + /* Border. */ + 1, + CopyFromParent, InputOutput, CopyFromParent, + mask, &attrs); + UNBLOCK_INPUT; + } + + x_make_gc (f); + + x_default_parameter (f, parms, Qauto_raise, Qnil, + "autoRaise", "AutoRaiseLower", RES_TYPE_BOOLEAN); + x_default_parameter (f, parms, Qauto_lower, Qnil, + "autoLower", "AutoRaiseLower", RES_TYPE_BOOLEAN); + x_default_parameter (f, parms, Qcursor_type, Qbox, + "cursorType", "CursorType", RES_TYPE_SYMBOL); + + /* Dimensions, especially f->height, must be done via change_frame_size. + Change will not be effected unless different from the current + f->height. */ + width = f->width; + height = f->height; + f->height = 0; + SET_FRAME_WIDTH (f, 0); + change_frame_size (f, height, width, 1, 0, 0); + + f->no_split = 1; + + UNGCPRO; + + /* It is now ok to make the frame official even if we get an error + below. And the frame needs to be on Vframe_list or making it + visible won't work. */ + Vframe_list = Fcons (frame, Vframe_list); + + /* Now that the frame is official, it counts as a reference to + its display. */ + FRAME_X_DISPLAY_INFO (f)->reference_count++; + + return unbind_to (count, frame); +} + + +DEFUN ("x-show-tip", Fx_show_tip, Sx_show_tip, 1, 4, 0, + "Show STRING in a \"tooltip\" window on frame FRAME.\n\ +A tooltip window is a small X window displaying STRING at\n\ +the current mouse position.\n\ +FRAME nil or omitted means use the selected frame.\n\ +PARMS is an optional list of frame parameters which can be\n\ +used to change the tooltip's appearance.\n\ +Automatically hide the tooltip after TIMEOUT seconds.\n\ +TIMEOUT nil means use the default timeout of 5 seconds.") + (string, frame, parms, timeout) + Lisp_Object string, frame, parms, timeout; +{ + struct frame *f; + struct window *w; + Window root, child; + Lisp_Object buffer; + struct buffer *old_buffer; + struct text_pos pos; + int i, width, height; + int root_x, root_y, win_x, win_y; + unsigned pmask; + struct gcpro gcpro1, gcpro2, gcpro3, gcpro4; + int old_windows_or_buffers_changed = windows_or_buffers_changed; + int count = specpdl_ptr - specpdl; + + specbind (Qinhibit_redisplay, Qt); + + GCPRO4 (string, parms, frame, timeout); + + CHECK_STRING (string, 0); + f = check_x_frame (frame); + if (NILP (timeout)) + timeout = make_number (5); + else + CHECK_NATNUM (timeout, 2); + + /* Hide a previous tip, if any. */ + Fx_hide_tip (); + + /* Add default values to frame parameters. */ + if (NILP (Fassq (Qname, parms))) + parms = Fcons (Fcons (Qname, build_string ("tooltip")), parms); + if (NILP (Fassq (Qinternal_border_width, parms))) + parms = Fcons (Fcons (Qinternal_border_width, make_number (3)), parms); + if (NILP (Fassq (Qborder_width, parms))) + parms = Fcons (Fcons (Qborder_width, make_number (1)), parms); + if (NILP (Fassq (Qborder_color, parms))) + parms = Fcons (Fcons (Qborder_color, build_string ("lightyellow")), parms); + if (NILP (Fassq (Qbackground_color, parms))) + parms = Fcons (Fcons (Qbackground_color, build_string ("lightyellow")), + parms); + + /* Create a frame for the tooltip, and record it in the global + variable tip_frame. */ + frame = x_create_tip_frame (FRAME_X_DISPLAY_INFO (f), parms); + tip_frame = f = XFRAME (frame); + + /* Set up the frame's root window. Currently we use a size of 80 + columns x 40 lines. If someone wants to show a larger tip, he + will loose. I don't think this is a realistic case. */ + w = XWINDOW (FRAME_ROOT_WINDOW (f)); + w->left = w->top = make_number (0); + w->width = 80; + w->height = 40; + adjust_glyphs (f); + w->pseudo_window_p = 1; + + /* Display the tooltip text in a temporary buffer. */ + buffer = Fget_buffer_create (build_string (" *tip*")); + Fset_window_buffer (FRAME_ROOT_WINDOW (f), buffer); + old_buffer = current_buffer; + set_buffer_internal_1 (XBUFFER (buffer)); + Ferase_buffer (); + Finsert (make_number (1), &string); + clear_glyph_matrix (w->desired_matrix); + clear_glyph_matrix (w->current_matrix); + SET_TEXT_POS (pos, BEGV, BEGV_BYTE); + try_window (FRAME_ROOT_WINDOW (f), pos); + + /* Compute width and height of the tooltip. */ + width = height = 0; + for (i = 0; i < w->desired_matrix->nrows; ++i) + { + struct glyph_row *row = &w->desired_matrix->rows[i]; + struct glyph *last; + int row_width; + + /* Stop at the first empty row at the end. */ + if (!row->enabled_p || !row->displays_text_p) + break; + + /* Let the row go over the full width of the frame. */ + row->full_width_p = 1; + + /* There's a glyph at the end of rows that is use to place + the cursor there. Don't include the width of this glyph. */ + if (row->used[TEXT_AREA]) + { + last = &row->glyphs[TEXT_AREA][row->used[TEXT_AREA] - 1]; + row_width = row->pixel_width - last->pixel_width; + } + else + row_width = row->pixel_width; + + height += row->height; + width = max (width, row_width); + } + + /* Add the frame's internal border to the width and height the X + window should have. */ + height += 2 * FRAME_INTERNAL_BORDER_WIDTH (f); + width += 2 * FRAME_INTERNAL_BORDER_WIDTH (f); + + /* Move the tooltip window where the mouse pointer is. Resize and + show it. */ + BLOCK_INPUT; + XQueryPointer (FRAME_X_DISPLAY (f), FRAME_X_DISPLAY_INFO (f)->root_window, + &root, &child, &root_x, &root_y, &win_x, &win_y, &pmask); + XMoveResizeWindow (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), + root_x + 5, root_y - height - 5, width, height); + XMapRaised (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f)); + UNBLOCK_INPUT; + + /* Draw into the window. */ + w->must_be_updated_p = 1; + update_single_window (w, 1); + + /* Restore original current buffer. */ + set_buffer_internal_1 (old_buffer); + windows_or_buffers_changed = old_windows_or_buffers_changed; + + /* Let the tip disappear after timeout seconds. */ + tip_timer = call3 (intern ("run-at-time"), timeout, Qnil, + intern ("x-hide-tip")); + + UNGCPRO; + return unbind_to (count, Qnil); +} + + +DEFUN ("x-hide-tip", Fx_hide_tip, Sx_hide_tip, 0, 0, 0, + "Hide the current tooltip window, if there is any.\n\ +Value is t is tooltip was open, nil otherwise.") + () +{ + int count = specpdl_ptr - specpdl; + int deleted_p = 0; + + specbind (Qinhibit_redisplay, Qt); + + if (!NILP (tip_timer)) + { + call1 (intern ("cancel-timer"), tip_timer); + tip_timer = Qnil; + } + + if (tip_frame) + { + Lisp_Object frame; + + XSETFRAME (frame, tip_frame); + Fdelete_frame (frame, Qt); + tip_frame = NULL; + deleted_p = 1; + } + + return unbind_to (count, deleted_p ? Qt : Qnil); +} + + + +/*********************************************************************** + File selection dialog + ***********************************************************************/ + +#ifdef USE_MOTIF + +/* Callback for "OK" and "Cancel" on file selection dialog. */ + +static void +file_dialog_cb (widget, client_data, call_data) + Widget widget; + XtPointer call_data, client_data; +{ + int *result = (int *) client_data; + XmAnyCallbackStruct *cb = (XmAnyCallbackStruct *) call_data; + *result = cb->reason; +} + + +DEFUN ("x-file-dialog", Fx_file_dialog, Sx_file_dialog, 2, 4, 0, + "Read file name, prompting with PROMPT in directory DIR.\n\ +Use a file selection dialog.\n\ +Select DEFAULT-FILENAME in the dialog's file selection box, if\n\ +specified. Don't let the user enter a file name in the file\n\ +selection dialog's entry field, if MUSTMATCH is non-nil.") + (prompt, dir, default_filename, mustmatch) + Lisp_Object prompt, dir, default_filename, mustmatch; +{ + int result; + struct frame *f = SELECTED_FRAME (); + Lisp_Object file = Qnil; + Widget dialog, text, list, help; + Arg al[10]; + int ac = 0; + extern XtAppContext Xt_app_con; + char *title; + XmString dir_xmstring, pattern_xmstring; + int popup_activated_flag; + int count = specpdl_ptr - specpdl; + struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5; + + GCPRO5 (prompt, dir, default_filename, mustmatch, file); + CHECK_STRING (prompt, 0); + CHECK_STRING (dir, 1); + + /* Prevent redisplay. */ + specbind (Qinhibit_redisplay, Qt); + + BLOCK_INPUT; + + /* Create the dialog with PROMPT as title, using DIR as initial + directory and using "*" as pattern. */ + dir = Fexpand_file_name (dir, Qnil); + dir_xmstring = XmStringCreateLocalized (XSTRING (dir)->data); + pattern_xmstring = XmStringCreateLocalized ("*"); + + XtSetArg (al[ac], XmNtitle, XSTRING (prompt)->data); ++ac; + XtSetArg (al[ac], XmNdirectory, dir_xmstring); ++ac; + XtSetArg (al[ac], XmNpattern, pattern_xmstring); ++ac; + XtSetArg (al[ac], XmNresizePolicy, XmRESIZE_GROW); ++ac; + XtSetArg (al[ac], XmNdialogStyle, XmDIALOG_APPLICATION_MODAL); ++ac; + dialog = XmCreateFileSelectionDialog (f->output_data.x->widget, + "fsb", al, ac); + XmStringFree (dir_xmstring); + XmStringFree (pattern_xmstring); + + /* Add callbacks for OK and Cancel. */ + XtAddCallback (dialog, XmNokCallback, file_dialog_cb, + (XtPointer) &result); + XtAddCallback (dialog, XmNcancelCallback, file_dialog_cb, + (XtPointer) &result); + + /* Disable the help button since we can't display help. */ + help = XmFileSelectionBoxGetChild (dialog, XmDIALOG_HELP_BUTTON); + XtSetSensitive (help, False); + + /* Mark OK button as default. */ + XtVaSetValues (XmFileSelectionBoxGetChild (dialog, XmDIALOG_OK_BUTTON), + XmNshowAsDefault, True, NULL); + + /* If MUSTMATCH is non-nil, disable the file entry field of the + dialog, so that the user must select a file from the files list + box. We can't remove it because we wouldn't have a way to get at + the result file name, then. */ + text = XmFileSelectionBoxGetChild (dialog, XmDIALOG_TEXT); + if (!NILP (mustmatch)) + { + Widget label; + label = XmFileSelectionBoxGetChild (dialog, XmDIALOG_SELECTION_LABEL); + XtSetSensitive (text, False); + XtSetSensitive (label, False); + } + + /* Manage the dialog, so that list boxes get filled. */ + XtManageChild (dialog); + + /* Select DEFAULT_FILENAME in the files list box. DEFAULT_FILENAME + must include the path for this to work. */ + list = XmFileSelectionBoxGetChild (dialog, XmDIALOG_LIST); + if (STRINGP (default_filename)) + { + XmString default_xmstring; + int item_pos; + + default_xmstring + = XmStringCreateLocalized (XSTRING (default_filename)->data); + + if (!XmListItemExists (list, default_xmstring)) + { + /* Add a new item if DEFAULT_FILENAME is not in the list. */ + XmListAddItem (list, default_xmstring, 0); + item_pos = 0; + } + else + item_pos = XmListItemPos (list, default_xmstring); + XmStringFree (default_xmstring); + + /* Select the item and scroll it into view. */ + XmListSelectPos (list, item_pos, True); + XmListSetPos (list, item_pos); + } + + /* Process all events until the user presses Cancel or OK. */ + for (result = 0; result == 0;) + { + XEvent event; + Widget widget, parent; + + XtAppNextEvent (Xt_app_con, &event); + + /* See if the receiver of the event is one of the widgets of + the file selection dialog. If so, dispatch it. If not, + discard it. */ + widget = XtWindowToWidget (event.xany.display, event.xany.window); + parent = widget; + while (parent && parent != dialog) + parent = XtParent (parent); + + if (parent == dialog + || (event.type == Expose + && !process_expose_from_menu (event))) + XtDispatchEvent (&event); + } + + /* Get the result. */ + if (result == XmCR_OK) + { + XmString text; + String data; + + XtVaGetValues (dialog, XmNtextString, &text, 0); + XmStringGetLtoR (text, XmFONTLIST_DEFAULT_TAG, &data); + XmStringFree (text); + file = build_string (data); + XtFree (data); + } + else + file = Qnil; + + /* Clean up. */ + XtUnmanageChild (dialog); + XtDestroyWidget (dialog); + UNBLOCK_INPUT; + UNGCPRO; + + /* Make "Cancel" equivalent to C-g. */ + if (NILP (file)) + Fsignal (Qquit, Qnil); + + return unbind_to (count, file); +} + +#endif /* USE_MOTIF */ + + +/*********************************************************************** + Tests + ***********************************************************************/ + +#if GLYPH_DEBUG + +DEFUN ("imagep", Fimagep, Simagep, 1, 1, 0, + "Value is non-nil if SPEC is a valid image specification.") + (spec) + Lisp_Object spec; +{ + return valid_image_p (spec) ? Qt : Qnil; +} + + +DEFUN ("lookup-image", Flookup_image, Slookup_image, 1, 1, 0, "") + (spec) + Lisp_Object spec; +{ + int id = -1; + + if (valid_image_p (spec)) + id = lookup_image (SELECTED_FRAME (), spec); + + debug_print (spec); + return make_number (id); +} + +#endif /* GLYPH_DEBUG != 0 */ + + + +/*********************************************************************** + Initialization + ***********************************************************************/ + +void +syms_of_xfns () +{ + /* This is zero if not using X windows. */ + x_in_use = 0; + + /* The section below is built by the lisp expression at the top of the file, + just above where these variables are declared. */ + /*&&& init symbols here &&&*/ + Qauto_raise = intern ("auto-raise"); + staticpro (&Qauto_raise); + Qauto_lower = intern ("auto-lower"); + staticpro (&Qauto_lower); + Qbar = intern ("bar"); + staticpro (&Qbar); + Qborder_color = intern ("border-color"); + staticpro (&Qborder_color); + Qborder_width = intern ("border-width"); + staticpro (&Qborder_width); + Qbox = intern ("box"); + staticpro (&Qbox); + Qcursor_color = intern ("cursor-color"); + staticpro (&Qcursor_color); + Qcursor_type = intern ("cursor-type"); + staticpro (&Qcursor_type); + Qgeometry = intern ("geometry"); + staticpro (&Qgeometry); + Qicon_left = intern ("icon-left"); + staticpro (&Qicon_left); + Qicon_top = intern ("icon-top"); + staticpro (&Qicon_top); + Qicon_type = intern ("icon-type"); + staticpro (&Qicon_type); + Qicon_name = intern ("icon-name"); + staticpro (&Qicon_name); + Qinternal_border_width = intern ("internal-border-width"); + staticpro (&Qinternal_border_width); + Qleft = intern ("left"); + staticpro (&Qleft); + Qright = intern ("right"); + staticpro (&Qright); + Qmouse_color = intern ("mouse-color"); + staticpro (&Qmouse_color); + Qnone = intern ("none"); + staticpro (&Qnone); + Qparent_id = intern ("parent-id"); + staticpro (&Qparent_id); + Qscroll_bar_width = intern ("scroll-bar-width"); + staticpro (&Qscroll_bar_width); + Qsuppress_icon = intern ("suppress-icon"); + staticpro (&Qsuppress_icon); + Qundefined_color = intern ("undefined-color"); + staticpro (&Qundefined_color); + Qvertical_scroll_bars = intern ("vertical-scroll-bars"); + staticpro (&Qvertical_scroll_bars); + Qvisibility = intern ("visibility"); + staticpro (&Qvisibility); + Qwindow_id = intern ("window-id"); + staticpro (&Qwindow_id); + Qouter_window_id = intern ("outer-window-id"); + staticpro (&Qouter_window_id); + Qx_frame_parameter = intern ("x-frame-parameter"); + staticpro (&Qx_frame_parameter); + Qx_resource_name = intern ("x-resource-name"); + staticpro (&Qx_resource_name); + Quser_position = intern ("user-position"); + staticpro (&Quser_position); + Quser_size = intern ("user-size"); + staticpro (&Quser_size); + Qscroll_bar_foreground = intern ("scroll-bar-foreground"); + staticpro (&Qscroll_bar_foreground); + Qscroll_bar_background = intern ("scroll-bar-background"); + staticpro (&Qscroll_bar_background); + Qscreen_gamma = intern ("screen-gamma"); + staticpro (&Qscreen_gamma); + /* This is the end of symbol initialization. */ + + /* Text property `display' should be nonsticky by default. */ + Vtext_property_default_nonsticky + = Fcons (Fcons (Qdisplay, Qt), Vtext_property_default_nonsticky); + + + Qlaplace = intern ("laplace"); + staticpro (&Qlaplace); + + Qface_set_after_frame_default = intern ("face-set-after-frame-default"); + staticpro (&Qface_set_after_frame_default); + + Fput (Qundefined_color, Qerror_conditions, + Fcons (Qundefined_color, Fcons (Qerror, Qnil))); + Fput (Qundefined_color, Qerror_message, + build_string ("Undefined color")); + + init_x_parm_symbols (); + + DEFVAR_LISP ("x-bitmap-file-path", &Vx_bitmap_file_path, + "List of directories to search for bitmap files for X."); + Vx_bitmap_file_path = decode_env_path ((char *) 0, PATH_BITMAPS); + + DEFVAR_LISP ("x-pointer-shape", &Vx_pointer_shape, + "The shape of the pointer when over text.\n\ +Changing the value does not affect existing frames\n\ +unless you set the mouse color."); + Vx_pointer_shape = Qnil; + + DEFVAR_LISP ("x-resource-name", &Vx_resource_name, "The name Emacs uses to look up X resources.\n\ `x-get-resource' uses this as the first component of the instance name\n\ when requesting resource values.\n\ @@ -5357,7 +11077,7 @@ Emacs initially sets `x-resource-class' to \"Emacs\".\n\ \n\ Setting this variable permanently is not a reasonable thing to do,\n\ but binding this variable locally around a call to `x-get-resource'\n\ -is a reasonabvle practice. See also the variable `x-resource-name'."); +is a reasonable practice. See also the variable `x-resource-name'."); Vx_resource_class = build_string (EMACS_CLASS); #if 0 /* This doesn't really do anything. */ @@ -5368,6 +11088,21 @@ or when you set the mouse color."); #endif Vx_nontext_pointer_shape = Qnil; + DEFVAR_LISP ("x-busy-pointer-shape", &Vx_busy_pointer_shape, + "The shape of the pointer when Emacs is busy.\n\ +This variable takes effect when you create a new frame\n\ +or when you set the mouse color."); + Vx_busy_pointer_shape = Qnil; + + DEFVAR_BOOL ("display-busy-cursor", &display_busy_cursor_p, + "Non-zero means Emacs displays a busy cursor on window systems."); + display_busy_cursor_p = 1; + + DEFVAR_LISP ("busy-cursor-delay", &Vbusy_cursor_delay, + "*Seconds to wait before displaying a busy-cursor.\n\ +Value must be an integer or float."); + Vbusy_cursor_delay = make_number (DEFAULT_BUSY_CURSOR_DELAY); + #if 0 /* This doesn't really do anything. */ DEFVAR_LISP ("x-mode-pointer-shape", &Vx_mode_pointer_shape, "The shape of the pointer when over the mode line.\n\ @@ -5405,6 +11140,18 @@ such a font. This is especially effective for such large fonts as\n\ Chinese, Japanese, and Korean."); Vx_pixel_size_width_font_regexp = Qnil; + DEFVAR_LISP ("image-cache-eviction-delay", &Vimage_cache_eviction_delay, + "Time after which cached images are removed from the cache.\n\ +When an image has not been displayed this many seconds, remove it\n\ +from the image cache. Value must be an integer or nil with nil\n\ +meaning don't clear the cache."); + Vimage_cache_eviction_delay = make_number (30 * 60); + + DEFVAR_LISP ("image-types", &Vimage_types, + "List of supported image types.\n\ +Each element of the list is a symbol for a supported image type."); + Vimage_types = Qnil; + #ifdef USE_X_TOOLKIT Fprovide (intern ("x-toolkit")); #endif @@ -5413,17 +11160,22 @@ Chinese, Japanese, and Korean."); #endif defsubr (&Sx_get_resource); + + /* X window properties. */ + defsubr (&Sx_change_window_property); + defsubr (&Sx_delete_window_property); + defsubr (&Sx_window_property); + #if 0 defsubr (&Sx_draw_rectangle); defsubr (&Sx_erase_rectangle); defsubr (&Sx_contour_region); defsubr (&Sx_uncontour_region); #endif - defsubr (&Sx_list_fonts); - defsubr (&Sx_display_color_p); + defsubr (&Sxw_display_color_p); defsubr (&Sx_display_grayscale_p); - defsubr (&Sx_color_defined_p); - defsubr (&Sx_color_values); + defsubr (&Sxw_color_defined_p); + defsubr (&Sxw_color_values); defsubr (&Sx_server_max_request_size); defsubr (&Sx_server_vendor); defsubr (&Sx_server_version); @@ -5456,12 +11208,125 @@ Chinese, Japanese, and Korean."); /* Setting callback functions for fontset handler. */ get_font_info_func = x_get_font_info; + +#if 0 /* This function pointer doesn't seem to be used anywhere. + And the pointer assigned has the wrong type, anyway. */ list_fonts_func = x_list_fonts; +#endif + load_font_func = x_load_font; find_ccl_program_func = x_find_ccl_program; query_font_func = x_query_font; set_frame_fontset_func = x_set_font; check_window_system_func = check_x; + + /* Images. */ + Qxbm = intern ("xbm"); + staticpro (&Qxbm); + QCtype = intern (":type"); + staticpro (&QCtype); + QCalgorithm = intern (":algorithm"); + staticpro (&QCalgorithm); + QCheuristic_mask = intern (":heuristic-mask"); + staticpro (&QCheuristic_mask); + QCcolor_symbols = intern (":color-symbols"); + staticpro (&QCcolor_symbols); + QCascent = intern (":ascent"); + staticpro (&QCascent); + QCmargin = intern (":margin"); + staticpro (&QCmargin); + QCrelief = intern (":relief"); + staticpro (&QCrelief); + Qpostscript = intern ("postscript"); + staticpro (&Qpostscript); + QCloader = intern (":loader"); + staticpro (&QCloader); + QCbounding_box = intern (":bounding-box"); + staticpro (&QCbounding_box); + QCpt_width = intern (":pt-width"); + staticpro (&QCpt_width); + QCpt_height = intern (":pt-height"); + staticpro (&QCpt_height); + QCindex = intern (":index"); + staticpro (&QCindex); + Qpbm = intern ("pbm"); + staticpro (&Qpbm); + +#if HAVE_XPM + Qxpm = intern ("xpm"); + staticpro (&Qxpm); +#endif + +#if HAVE_JPEG + Qjpeg = intern ("jpeg"); + staticpro (&Qjpeg); +#endif + +#if HAVE_TIFF + Qtiff = intern ("tiff"); + staticpro (&Qtiff); +#endif + +#if HAVE_GIF + Qgif = intern ("gif"); + staticpro (&Qgif); +#endif + +#if HAVE_PNG + Qpng = intern ("png"); + staticpro (&Qpng); +#endif + + defsubr (&Sclear_image_cache); + +#if GLYPH_DEBUG + defsubr (&Simagep); + defsubr (&Slookup_image); +#endif + + busy_cursor_atimer = NULL; + busy_cursor_shown_p = 0; + + defsubr (&Sx_show_tip); + defsubr (&Sx_hide_tip); + staticpro (&tip_timer); + tip_timer = Qnil; + +#ifdef USE_MOTIF + defsubr (&Sx_file_dialog); +#endif +} + + +void +init_xfns () +{ + image_types = NULL; + Vimage_types = Qnil; + + define_image_type (&xbm_type); + define_image_type (&gs_type); + define_image_type (&pbm_type); + +#if HAVE_XPM + define_image_type (&xpm_type); +#endif + +#if HAVE_JPEG + define_image_type (&jpeg_type); +#endif + +#if HAVE_TIFF + define_image_type (&tiff_type); +#endif + +#if HAVE_GIF + define_image_type (&gif_type); +#endif + +#if HAVE_PNG + define_image_type (&png_type); +#endif } #endif /* HAVE_X_WINDOWS */