1 /* X Communication module for terminals which understand the X protocol.
2 Copyright (C) 1989, 1993 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
6 GNU Emacs is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Emacs; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
22 Kludge: dup2 is used to put the X-connection socket into desc # 0
23 so that wait_reading_process_input will wait for it in place of
24 actual terminal input.
28 #define NEW_SELECTIONS
30 /* On 4.3 these lose if they come after xterm.h. */
31 /* On HP-UX 8.0 signal.h loses if it comes after config.h. */
32 /* Putting these at the beginning seems to be standard for other .c files. */
41 #include "blockinput.h"
43 /* This may include sys/types.h, and that somehow loses
44 if this is not done before the other system files. */
46 #include <X11/cursorfont.h>
49 /* Load sys/types.h if not already loaded.
50 In some systems loading it twice is suicidal. */
52 #include <sys/types.h>
57 #include <sys/ioctl.h>
59 #else /* ! defined (BSD) */
63 #endif /* ! defined (BSD) */
73 #include <sys/param.h>
75 #include "dispextern.h"
76 #include "termhooks.h"
90 #define XMapWindow XMapRaised /* Raise them when mapping. */
91 #else /* ! defined (HAVE_X11) */
92 #include <X/Xkeyboard.h>
93 /*#include <X/Xproto.h> */
94 #endif /* ! defined (HAVE_X11) */
97 /* We could get this from param.h, but better not to depend on finding that.
98 And better not to risk that it might define other symbols used in this
101 #define MAXDESC FD_SETSIZE
105 #define SELECT_TYPE fd_set
106 #else /* no FD_SET */
108 #define SELECT_TYPE int
110 /* Define the macros to access a single-int bitmap of descriptors. */
111 #define FD_SET(n, p) (*(p) |= (1 << (n)))
112 #define FD_CLR(n, p) (*(p) &= ~(1 << (n)))
113 #define FD_ISSET(n, p) (*(p) & (1 << (n)))
114 #define FD_ZERO(p) (*(p) = 0)
115 #endif /* no FD_SET */
117 /* For sending Meta-characters. Do we need this? */
120 #define min(a,b) ((a)<(b) ? (a) : (b))
121 #define max(a,b) ((a)>(b) ? (a) : (b))
123 /* Nonzero means we must reprint all windows
124 because 1) we received an ExposeWindow event
125 or 2) we received too many ExposeRegion events to record.
127 This is never needed under X11. */
128 static int expose_all_windows
;
130 /* Nonzero means we must reprint all icon windows. */
132 static int expose_all_icons
;
135 /* ExposeRegion events, when received, are copied into this queue
136 for later processing. */
138 static struct event_queue x_expose_queue
;
140 /* ButtonPressed and ButtonReleased events, when received,
141 are copied into this queue for later processing. */
143 struct event_queue x_mouse_queue
;
144 #endif /* HAVE_X11 */
146 #if defined (SIGIO) && defined (FIONREAD)
147 int BLOCK_INPUT_mask
;
148 #endif /* ! defined (SIGIO) && defined (FIONREAD) */
150 /* The id of a bitmap used for icon windows.
151 One such map is shared by all Emacs icon windows.
152 This is zero if we have not yet had a need to create the bitmap. */
154 static Bitmap icon_bitmap
;
156 /* Font used for text icons. */
158 static FONT_TYPE
*icon_font_info
;
160 /* Stuff for dealing with the main icon title. */
162 extern Lisp_Object Vcommand_line_args
;
163 char *hostname
, *x_id_name
;
165 /* This is the X connection that we are using. */
167 Display
*x_current_display
;
169 /* The cursor to use for vertical scroll bars on x_current_display. */
170 static Cursor x_vertical_scroll_bar_cursor
;
172 /* Frame being updated by update_frame. This is declared in term.c.
173 This is set by update_begin and looked at by all the
174 XT functions. It is zero while not inside an update.
175 In that case, the XT functions assume that `selected_frame'
176 is the frame to apply to. */
177 extern struct frame
*updating_frame
;
179 /* The frame (if any) which has the X window that has keyboard focus.
180 Zero if none. This is examined by Ffocus_frame in frame.c. Note
181 that a mere EnterNotify event can set this; if you need to know the
182 last frame specified in a FocusIn or FocusOut event, use
183 x_focus_event_frame. */
184 struct frame
*x_focus_frame
;
186 /* The last frame mentioned in a FocusIn or FocusOut event. This is
187 separate from x_focus_frame, because whether or not LeaveNotify
188 events cause us to lose focus depends on whether or not we have
189 received a FocusIn event for it. */
190 struct frame
*x_focus_event_frame
;
192 /* The frame which currently has the visual highlight, and should get
193 keyboard input (other sorts of input have the frame encoded in the
194 event). It points to the X focus frame's selected window's
195 frame. It differs from x_focus_frame when we're using a global
197 static struct frame
*x_highlight_frame
;
199 /* From .Xdefaults, the value of "emacs.WarpMouse". If non-zero,
200 mouse is moved to inside of frame when frame is de-iconified. */
202 static int warp_mouse_on_deiconify
;
204 /* During an update, maximum vpos for ins/del line operations to affect. */
206 static int flexlines
;
208 /* During an update, nonzero if chars output now should be highlighted. */
210 static int highlight
;
212 /* Nominal cursor position -- where to draw output.
213 During an update, these are different from the cursor-box position. */
219 /* `t' if a mouse button is depressed. */
221 extern Lisp_Object Vmouse_depressed
;
223 /* Tells if a window manager is present or not. */
225 extern Lisp_Object Vx_no_window_manager
;
227 /* Timestamp that we requested selection data was made. */
228 extern Time requestor_time
;
230 /* ID of the window requesting selection data. */
231 extern Window requestor_window
;
233 /* Nonzero enables some debugging for the X interface code. */
236 #else /* ! defined (HAVE_X11) */
238 /* Bit patterns for the mouse cursor. */
240 short MouseCursor
[] = {
241 0x0000, 0x0008, 0x0018, 0x0038,
242 0x0078, 0x00f8, 0x01f8, 0x03f8,
243 0x07f8, 0x00f8, 0x00d8, 0x0188,
244 0x0180, 0x0300, 0x0300, 0x0000};
246 short MouseMask
[] = {
247 0x000c, 0x001c, 0x003c, 0x007c,
248 0x00fc, 0x01fc, 0x03fc, 0x07fc,
249 0x0ffc, 0x0ffc, 0x01fc, 0x03dc,
250 0x03cc, 0x0780, 0x0780, 0x0300};
252 static short grey_bits
[] = {
253 0x0005, 0x000a, 0x0005, 0x000a};
255 static Pixmap GreyPixmap
= 0;
256 #endif /* ! defined (HAVE_X11) */
258 /* From time to time we get info on an Emacs window, here. */
260 static WINDOWINFO_TYPE windowinfo
;
264 /* A mask of extra modifier bits to put into every keyboard char. */
265 extern int extra_keyboard_modifiers
;
267 extern Display
*XOpenDisplay ();
268 extern Window
XCreateWindow ();
270 extern Cursor
XCreateCursor ();
271 extern FONT_TYPE
*XOpenFont ();
273 static void flashback ();
276 static void dumpqueue ();
277 #endif /* HAVE_X11 */
280 static int XTcursor_to ();
281 static int XTclear_end_of_line ();
284 /* Starting and ending updates.
286 These hooks are called by update_frame at the beginning and end
287 of a frame update. We record in `updating_frame' the identity
288 of the frame being updated, so that the XT... functions do not
289 need to take a frame as argument. Most of the XT... functions
290 should never be called except during an update, the only exceptions
291 being XTcursor_to, XTwrite_char and XTreassert_line_highlight. */
293 extern int mouse_track_top
, mouse_track_left
, mouse_track_width
;
304 flexlines
= f
->height
;
310 #endif /* HAVE_X11 */
315 static void x_do_pending_expose ();
324 if (updating_frame
== 0
325 || updating_frame
!= f
)
331 x_do_pending_expose ();
332 #endif /* HAVE_X11 */
334 x_display_cursor (f
, 1);
340 /* External interface to control of standout mode.
341 Call this when about to modify line at position VPOS
342 and not change whether it is highlighted. */
344 XTreassert_line_highlight (new, vpos
)
350 /* Call this when about to modify line at position VPOS
351 and change whether it is highlighted. */
354 XTchange_line_highlight (new_highlight
, vpos
, first_unused_hpos
)
355 int new_highlight
, vpos
, first_unused_hpos
;
357 highlight
= new_highlight
;
358 XTcursor_to (vpos
, 0);
359 XTclear_end_of_line (updating_frame
->width
);
362 /* This is used when starting Emacs and when restarting after suspend.
363 When starting Emacs, no X window is mapped. And nothing must be done
364 to Emacs's own window if it is suspended (though that rarely happens). */
367 XTset_terminal_modes ()
371 /* This is called when exiting or suspending Emacs.
372 Exiting will make the X-windows go away, and suspending
373 requires no action. */
376 XTreset_terminal_modes ()
378 /* XTclear_frame (); */
381 /* Set the nominal cursor position of the frame.
382 This is where display update commands will take effect.
383 This does not affect the place where the cursor-box is displayed. */
386 XTcursor_to (row
, col
)
387 register int row
, col
;
395 if (updating_frame
== 0)
398 x_display_cursor (selected_frame
, 1);
404 /* Display a sequence of N glyphs found at GP.
405 WINDOW is the x-window to output to. LEFT and TOP are starting coords.
406 HL is 1 if this text is highlighted, 2 if the cursor is on it.
408 FONT is the default font to use (for glyphs whose font-code is 0).
410 Since the display generation code is responsible for calling
411 compute_char_face and compute_glyph_face on everything it puts in
412 the display structure, we can assume that the face code on each
413 glyph is a valid index into FRAME_COMPUTED_FACES (f), and the one
414 to which we can actually apply intern_face. */
417 /* This is the multi-face code. */
420 dumpglyphs (f
, left
, top
, gp
, n
, hl
)
423 register GLYPH
*gp
; /* Points to first GLYPH. */
424 register int n
; /* Number of glyphs to display. */
427 /* Holds characters to be displayed. */
428 char *buf
= (char *) alloca (f
->width
* sizeof (*buf
));
429 register char *cp
; /* Steps through buf[]. */
430 register int tlen
= GLYPH_TABLE_LENGTH
;
431 register Lisp_Object
*tbase
= GLYPH_TABLE_BASE
;
432 Window window
= FRAME_X_WINDOW (f
);
436 /* Get the face-code of the next GLYPH. */
440 GLYPH_FOLLOW_ALIASES (tbase
, tlen
, g
);
443 /* Find the run of consecutive glyphs with the same face-code.
444 Extract their character codes into BUF. */
449 GLYPH_FOLLOW_ALIASES (tbase
, tlen
, g
);
450 if (GLYPH_FACE (g
) != cf
)
453 *cp
++ = GLYPH_CHAR (g
);
458 /* LEN gets the length of the run. */
461 /* Now output this run of chars, with the font and pixel values
462 determined by the face code CF. */
464 struct face
*face
= FRAME_DEFAULT_FACE (f
);
465 FONT_TYPE
*font
= FACE_FONT (face
);
466 GC gc
= FACE_GC (face
);
468 int gc_temporary
= 0;
470 /* First look at the face of the text itself. */
473 /* The face codes on the glyphs must be valid indices into the
474 frame's face table. */
475 if (cf
< 0 || cf
>= FRAME_N_COMPUTED_FACES (f
)
476 || FRAME_COMPUTED_FACES (f
) [cf
] == 0)
480 face
= FRAME_MODE_LINE_FACE (f
);
482 face
= intern_face (f
, FRAME_COMPUTED_FACES (f
) [cf
]);
483 font
= FACE_FONT (face
);
488 /* Then comes the distinction between modeline and normal text. */
493 face
= FRAME_MODE_LINE_FACE (f
);
494 font
= FACE_FONT (face
);
499 #define FACE_DEFAULT (~0)
501 /* Now override that if the cursor's on this character. */
506 || (int) face
->font
== FACE_DEFAULT
)
508 gc
= f
->display
.x
->cursor_gc
;
510 /* Cursor on non-default face: must merge. */
516 xgcv
.background
= f
->display
.x
->cursor_pixel
;
517 xgcv
.foreground
= f
->display
.x
->cursor_foreground_pixel
;
518 xgcv
.font
= face
->font
->fid
;
519 xgcv
.graphics_exposures
= 0;
520 mask
= GCForeground
| GCBackground
| GCFont
| GCGraphicsExposures
;
521 gc
= XCreateGC (x_current_display
, FRAME_X_WINDOW (f
),
524 if (face
->stipple
&& face
->stipple
!= FACE_DEFAULT
)
525 XSetStipple (x_current_display
, gc
, face
->stipple
);
531 if ((int) font
== FACE_DEFAULT
)
532 font
= f
->display
.x
->font
;
534 XDrawImageString (x_current_display
, window
, gc
,
535 left
, top
+ FONT_BASE (font
), buf
, len
);
538 XFreeGC (x_current_display
, gc
);
540 /* We should probably check for XA_UNDERLINE_POSITION and
541 XA_UNDERLINE_THICKNESS properties on the font, but let's
542 just get the thing working, and come back to that. */
544 int underline_position
= 1;
546 if (font
->descent
<= underline_position
)
547 underline_position
= font
->descent
- 1;
550 XFillRectangle (x_current_display
, FRAME_X_WINDOW (f
),
554 + underline_position
),
555 len
* FONT_WIDTH (font
), 1);
558 left
+= len
* FONT_WIDTH (font
);
565 /* This is the old single-face code. */
568 dumpglyphs (f
, left
, top
, gp
, n
, hl
, font
)
571 register GLYPH
*gp
; /* Points to first GLYPH. */
572 register int n
; /* Number of glyphs to display. */
577 Window window
= FRAME_X_WINDOW (f
);
578 GC drawing_gc
= (hl
== 2 ? f
->display
.x
->cursor_gc
579 : (hl
? f
->display
.x
->reverse_gc
580 : f
->display
.x
->normal_gc
));
582 if (sizeof (GLYPH
) == sizeof (XChar2b
))
583 XDrawImageString16 (x_current_display
, window
, drawing_gc
,
584 left
, top
+ FONT_BASE (font
), (XChar2b
*) gp
, n
);
585 else if (sizeof (GLYPH
) == sizeof (unsigned char))
586 XDrawImageString (x_current_display
, window
, drawing_gc
,
587 left
, top
+ FONT_BASE (font
), (char *) gp
, n
);
589 /* What size of glyph ARE you using? And does X have a function to
595 /* Output some text at the nominal frame cursor position.
596 Advance the cursor over the text.
597 Output LEN glyphs at START.
599 `highlight', set up by XTreassert_line_highlight or XTchange_line_highlight,
600 controls the pixel values used for foreground and background. */
603 XTwrite_glyphs (start
, len
)
604 register GLYPH
*start
;
607 register int temp_length
;
617 /* If not within an update,
618 output at the frame's visible cursor. */
619 curs_x
= f
->cursor_x
;
620 curs_y
= f
->cursor_y
;
624 CHAR_TO_PIXEL_COL (f
, curs_x
),
625 CHAR_TO_PIXEL_ROW (f
, curs_y
),
626 start
, len
, highlight
);
628 /* If we drew on top of the cursor, note that it is turned off. */
629 if (curs_y
== f
->phys_cursor_y
630 && curs_x
<= f
->phys_cursor_x
631 && curs_x
+ len
> f
->phys_cursor_x
)
632 f
->phys_cursor_x
= -1;
634 if (updating_frame
== 0)
637 x_display_cursor (f
, 1);
646 /* Clear to the end of the line.
647 Erase the current text line from the nominal cursor position (inclusive)
648 to column FIRST_UNUSED (exclusive). The idea is that everything
649 from FIRST_UNUSED onward is already erased. */
652 XTclear_end_of_line (first_unused
)
653 register int first_unused
;
655 struct frame
*f
= updating_frame
;
661 if (curs_y
< 0 || curs_y
>= f
->height
)
663 if (first_unused
<= 0)
666 if (first_unused
>= f
->width
)
667 first_unused
= f
->width
;
671 /* Notice if the cursor will be cleared by this operation. */
672 if (curs_y
== f
->phys_cursor_y
673 && curs_x
<= f
->phys_cursor_x
674 && f
->phys_cursor_x
< first_unused
)
675 f
->phys_cursor_x
= -1;
678 XClearArea (x_current_display
, FRAME_X_WINDOW (f
),
679 CHAR_TO_PIXEL_COL (f
, curs_x
),
680 CHAR_TO_PIXEL_ROW (f
, curs_y
),
681 FONT_WIDTH (f
->display
.x
->font
) * (first_unused
- curs_x
),
682 FONT_HEIGHT (f
->display
.x
->font
), False
);
684 #else /* ! defined (HAVE_X11) */
685 XPixSet (FRAME_X_WINDOW (f
),
686 CHAR_TO_PIXEL_COL (f
, curs_x
),
687 CHAR_TO_PIXEL_ROW (f
, curs_y
),
688 FONT_WIDTH (f
->display
.x
->font
) * (first_unused
- curs_x
),
689 FONT_HEIGHT (f
->display
.x
->font
),
690 f
->display
.x
->background_pixel
);
691 #endif /* ! defined (HAVE_X11) */
700 struct frame
*f
= updating_frame
;
705 f
->phys_cursor_x
= -1; /* Cursor not visible. */
706 curs_x
= 0; /* Nominal cursor position is top left. */
711 XClear (FRAME_X_WINDOW (f
));
713 /* We have to clear the scroll bars, too. If we have changed
714 colors or something like that, then they should be notified. */
715 x_scroll_bar_clear (f
);
719 #endif /* HAVE_X11 */
725 /* Invert the middle quarter of the frame for .15 sec. */
727 /* We use the select system call to do the waiting, so we have to make sure
728 it's available. If it isn't, we just won't do visual bells. */
729 #if defined (HAVE_TIMEVAL) && defined (HAVE_SELECT)
731 /* Subtract the `struct timeval' values X and Y,
732 storing the result in RESULT.
733 Return 1 if the difference is negative, otherwise 0. */
736 timeval_subtract (result
, x
, y
)
737 struct timeval
*result
, x
, y
;
739 /* Perform the carry for the later subtraction by updating y.
740 This is safer because on some systems
741 the tv_sec member is unsigned. */
742 if (x
.tv_usec
< y
.tv_usec
)
744 int nsec
= (y
.tv_usec
- x
.tv_usec
) / 1000000 + 1;
745 y
.tv_usec
-= 1000000 * nsec
;
748 if (x
.tv_usec
- y
.tv_usec
> 1000000)
750 int nsec
= (y
.tv_usec
- x
.tv_usec
) / 1000000;
751 y
.tv_usec
+= 1000000 * nsec
;
755 /* Compute the time remaining to wait. tv_usec is certainly positive. */
756 result
->tv_sec
= x
.tv_sec
- y
.tv_sec
;
757 result
->tv_usec
= x
.tv_usec
- y
.tv_usec
;
759 /* Return indication of whether the result should be considered negative. */
760 return x
.tv_sec
< y
.tv_sec
;
771 /* Create a GC that will use the GXxor function to flip foreground pixels
772 into background pixels. */
776 values
.function
= GXxor
;
777 values
.foreground
= (f
->display
.x
->foreground_pixel
778 ^ f
->display
.x
->background_pixel
);
780 gc
= XCreateGC (x_current_display
, FRAME_X_WINDOW (f
),
781 GCFunction
| GCForeground
, &values
);
785 int width
= PIXEL_WIDTH (f
);
786 int height
= PIXEL_HEIGHT (f
);
788 XFillRectangle (x_current_display
, FRAME_X_WINDOW (f
), gc
,
789 width
/4, height
/4, width
/2, height
/2);
790 XFlush (x_current_display
);
793 struct timeval wakeup
, now
;
795 gettimeofday (&wakeup
, (struct timezone
*) 0);
797 /* Compute time to wait until, propagating carry from usecs. */
798 wakeup
.tv_usec
+= 150000;
799 wakeup
.tv_sec
+= (wakeup
.tv_usec
/ 1000000);
800 wakeup
.tv_usec
%= 1000000;
802 /* Keep waiting until past the time wakeup. */
805 struct timeval timeout
;
807 gettimeofday (&timeout
, (struct timezone
*)0);
809 /* In effect, timeout = wakeup - timeout.
810 Break if result would be negative. */
811 if (timeval_subtract (&timeout
, wakeup
, timeout
))
814 /* Try to wait that long--but we might wake up sooner. */
815 select (0, 0, 0, 0, &timeout
);
819 XFillRectangle (x_current_display
, FRAME_X_WINDOW (f
), gc
,
820 width
/4, height
/4, width
/2, height
/2);
821 XFreeGC (x_current_display
, gc
);
822 XFlush (x_current_display
);
832 /* Make audible bell. */
835 #define XRINGBELL XBell(x_current_display, 0)
836 #else /* ! defined (HAVE_X11) */
837 #define XRINGBELL XFeep(0);
838 #endif /* ! defined (HAVE_X11) */
842 if (x_current_display
== 0)
845 #if defined (HAVE_TIMEVAL) && defined (HAVE_SELECT)
847 XTflash (selected_frame
);
858 /* Insert and delete character.
859 These are not supposed to be used because we are supposed to turn
860 off the feature of using them. */
863 XTinsert_glyphs (start
, len
)
864 register char *start
;
877 /* Specify how many text lines, from the top of the window,
878 should be affected by insert-lines and delete-lines operations.
879 This, and those operations, are used only within an update
880 that is bounded by calls to XTupdate_begin and XTupdate_end. */
883 XTset_terminal_window (n
)
886 if (updating_frame
== 0)
889 if ((n
<= 0) || (n
> updating_frame
->height
))
890 flexlines
= updating_frame
->height
;
895 /* Perform an insert-lines operation.
896 Insert N lines at a vertical position curs_y. */
902 register int topregion
, bottomregion
;
903 register int length
, newtop
, mask
;
904 register struct frame
*f
= updating_frame
;
905 int intborder
= f
->display
.x
->internal_border_width
;
907 if (curs_y
>= flexlines
)
911 bottomregion
= flexlines
- (n
+ 1);
912 newtop
= topregion
+ n
;
913 length
= (bottomregion
- topregion
) + 1;
917 #endif /* HAVE_X11 */
919 if ((length
> 0) && (newtop
<= flexlines
))
922 XCopyArea (x_current_display
, FRAME_X_WINDOW (f
),
923 FRAME_X_WINDOW (f
), f
->display
.x
->normal_gc
,
924 intborder
, CHAR_TO_PIXEL_ROW (f
, topregion
),
925 f
->width
* FONT_WIDTH (f
->display
.x
->font
),
926 length
* FONT_HEIGHT (f
->display
.x
->font
), intborder
,
927 CHAR_TO_PIXEL_ROW (f
, newtop
));
928 #else /* ! defined (HAVE_X11) */
929 XMoveArea (FRAME_X_WINDOW (f
),
930 intborder
, CHAR_TO_PIXEL_ROW (f
, topregion
),
931 intborder
, CHAR_TO_PIXEL_ROW (f
, newtop
),
932 f
->width
* FONT_WIDTH (f
->display
.x
->font
),
933 length
* FONT_HEIGHT (f
->display
.x
->font
));
934 /* Now we must process any ExposeRegion events that occur
935 if the area being copied from is obscured.
936 We can't let it wait because further i/d operations
937 may want to copy this area to another area. */
939 #endif /* ! defined (HAVE_X11) */
942 newtop
= min (newtop
, (flexlines
- 1));
943 length
= newtop
- topregion
;
947 XClearArea (x_current_display
, FRAME_X_WINDOW (f
), intborder
,
948 CHAR_TO_PIXEL_ROW (f
, topregion
),
949 f
->width
* FONT_WIDTH (f
->display
.x
->font
),
950 n
* FONT_HEIGHT (f
->display
.x
->font
), False
);
951 #else /* ! defined (HAVE_X11) */
952 XPixSet (FRAME_X_WINDOW (f
),
954 CHAR_TO_PIXEL_ROW (f
, topregion
),
955 f
->width
* FONT_WIDTH (f
->display
.x
->font
),
956 n
* FONT_HEIGHT (f
->display
.x
->font
),
957 f
->display
.x
->background_pixel
);
958 #endif /* ! defined (HAVE_X11) */
962 /* Perform a delete-lines operation, deleting N lines
963 at a vertical position curs_y. */
970 register struct frame
*f
= updating_frame
;
971 int intborder
= f
->display
.x
->internal_border_width
;
973 if (curs_y
>= flexlines
)
978 #endif /* HAVE_X11 */
980 if ((curs_y
+ n
) >= flexlines
)
982 if (flexlines
>= (curs_y
+ 1))
985 XClearArea (x_current_display
, FRAME_X_WINDOW (f
), intborder
,
986 CHAR_TO_PIXEL_ROW (f
, curs_y
),
987 f
->width
* FONT_WIDTH (f
->display
.x
->font
),
988 (flexlines
- curs_y
) * FONT_HEIGHT (f
->display
.x
->font
), False
);
989 #else /* ! defined (HAVE_X11) */
990 XPixSet (FRAME_X_WINDOW (f
),
991 intborder
, CHAR_TO_PIXEL_ROW (f
, curs_y
),
992 f
->width
* FONT_WIDTH (f
->display
.x
->font
),
993 (flexlines
- curs_y
) * FONT_HEIGHT (f
->display
.x
->font
),
994 f
->display
.x
->background_pixel
);
995 #endif /* ! defined (HAVE_X11) */
1001 XCopyArea (x_current_display
, FRAME_X_WINDOW (f
),
1002 FRAME_X_WINDOW (f
), f
->display
.x
->normal_gc
,
1004 CHAR_TO_PIXEL_ROW (f
, curs_y
+ n
),
1005 f
->width
* FONT_WIDTH (f
->display
.x
->font
),
1006 (flexlines
- (curs_y
+ n
)) * FONT_HEIGHT (f
->display
.x
->font
),
1007 intborder
, CHAR_TO_PIXEL_ROW (f
, curs_y
));
1008 XClearArea (x_current_display
, FRAME_X_WINDOW (f
),
1010 CHAR_TO_PIXEL_ROW (f
, flexlines
- n
),
1011 f
->width
* FONT_WIDTH (f
->display
.x
->font
),
1012 n
* FONT_HEIGHT (f
->display
.x
->font
), False
);
1013 #else /* ! defined (HAVE_X11) */
1014 XMoveArea (FRAME_X_WINDOW (f
),
1016 CHAR_TO_PIXEL_ROW (f
, curs_y
+ n
),
1017 intborder
, CHAR_TO_PIXEL_ROW (f
, curs_y
),
1018 f
->width
* FONT_WIDTH (f
->display
.x
->font
),
1019 (flexlines
- (curs_y
+ n
)) * FONT_HEIGHT (f
->display
.x
->font
));
1020 /* Now we must process any ExposeRegion events that occur
1021 if the area being copied from is obscured.
1022 We can't let it wait because further i/d operations
1023 may want to copy this area to another area. */
1025 XPixSet (FRAME_X_WINDOW (f
), intborder
,
1026 CHAR_TO_PIXEL_ROW (f
, flexlines
- n
),
1027 f
->width
* FONT_WIDTH (f
->display
.x
->font
),
1028 n
* FONT_HEIGHT (f
->display
.x
->font
), f
->display
.x
->background_pixel
);
1029 #endif /* ! defined (HAVE_X11) */
1033 /* Perform an insert-lines or delete-lines operation,
1034 inserting N lines or deleting -N lines at vertical position VPOS. */
1036 XTins_del_lines (vpos
, n
)
1039 if (updating_frame
== 0)
1042 /* Hide the cursor. */
1043 x_display_cursor (updating_frame
, 0);
1045 XTcursor_to (vpos
, 0);
1056 /* Support routines for exposure events. */
1057 static void clear_cursor ();
1059 /* Output into a rectangle of an X-window (for frame F)
1060 the characters in f->phys_lines that overlap that rectangle.
1061 TOP and LEFT are the position of the upper left corner of the rectangle.
1062 ROWS and COLS are the size of the rectangle. */
1065 dumprectangle (f
, left
, top
, cols
, rows
)
1067 register int left
, top
, cols
, rows
;
1069 register struct frame_glyphs
*active_frame
= FRAME_CURRENT_GLYPHS (f
);
1070 int cursor_cleared
= 0;
1074 if (FRAME_GARBAGED_P (f
))
1077 /* Express rectangle as four edges, instead of position-and-size. */
1078 bottom
= top
+ rows
;
1079 right
= left
+ cols
;
1081 #ifndef HAVE_X11 /* Window manger does this for X11. */
1083 int intborder
= f
->display
.x
->internal_border_width
;
1085 /* If the rectangle includes any of the internal border area,
1086 redisplay the border emphasis. */
1087 if (top
< intborder
|| left
< intborder
1088 || bottom
> intborder
+ f
->height
* FONT_HEIGHT (f
->display
.x
->font
)
1089 || right
> intborder
+ f
->width
* FONT_WIDTH (f
->display
.x
->font
))
1092 #endif /* HAVE_X11 Window manger does this for X11. */
1094 /* Convert rectangle edges in pixels to edges in chars.
1095 Round down for left and top, up for right and bottom. */
1096 top
= PIXEL_TO_CHAR_ROW (f
, top
);
1097 left
= PIXEL_TO_CHAR_COL (f
, left
);
1098 bottom
+= (FONT_HEIGHT (f
->display
.x
->font
) - 1);
1099 right
+= (FONT_WIDTH (f
->display
.x
->font
) - 1);
1100 bottom
= PIXEL_TO_CHAR_ROW (f
, bottom
);
1101 right
= PIXEL_TO_CHAR_COL (f
, right
);
1103 /* Clip the rectangle to what can be visible. */
1108 if (right
> f
->width
)
1110 if (bottom
> f
->height
)
1113 /* Get size in chars of the rectangle. */
1114 cols
= right
- left
;
1115 rows
= bottom
- top
;
1117 /* If rectangle has zero area, return. */
1118 if (rows
<= 0) return;
1119 if (cols
<= 0) return;
1121 /* Turn off the cursor if it is in the rectangle.
1122 We will turn it back on afterward. */
1123 if ((f
->phys_cursor_x
>= left
) && (f
->phys_cursor_x
< right
)
1124 && (f
->phys_cursor_y
>= top
) && (f
->phys_cursor_y
< bottom
))
1130 /* Display the text in the rectangle, one text line at a time. */
1132 for (y
= top
; y
< bottom
; y
++)
1134 GLYPH
*line
= &active_frame
->glyphs
[y
][left
];
1136 if (! active_frame
->enable
[y
] || left
> active_frame
->used
[y
])
1140 CHAR_TO_PIXEL_COL (f
, left
),
1141 CHAR_TO_PIXEL_ROW (f
, y
),
1142 line
, min (cols
, active_frame
->used
[y
] - left
),
1143 active_frame
->highlight
[y
]);
1146 /* Turn the cursor on if we turned it off. */
1149 x_display_cursor (f
, 1);
1153 /* Process all queued ExposeRegion events. */
1159 XExposeRegionEvent r
;
1161 while (dequeue_event (&r
, &x_expose_queue
))
1163 struct frame
*f
= x_window_to_frame (r
.window
);
1164 if (f
->display
.x
->icon_desc
== r
.window
)
1167 dumprectangle (f
, r
.x
, r
.y
, r
.width
, r
.height
);
1171 #endif /* HAVE_X11 */
1173 /* Process all expose events that are pending, for X10.
1174 Redraws the cursor if necessary on any frame that
1175 is not in the process of being updated with update_frame. */
1179 x_do_pending_expose ()
1183 Lisp_Object tail
, frame
;
1185 if (expose_all_windows
)
1187 expose_all_windows
= 0;
1188 for (tail
= Vframe_list
; CONSP (tail
); tail
= XCONS (tail
)->cdr
)
1190 register int temp_width
, temp_height
;
1193 frame
= XCONS (tail
)->car
;
1194 if (XGCTYPE (frame
) != Lisp_Frame
)
1197 if (! FRAME_X_P (f
))
1199 if (!f
->async_visible
)
1201 if (!f
->display
.x
->needs_exposure
)
1204 intborder
= f
->display
.x
->internal_border_width
;
1207 XGetWindowInfo (FRAME_X_WINDOW (f
), &windowinfo
);
1208 temp_width
= ((windowinfo
.width
- 2 * intborder
1209 - f
->display
.x
->v_scroll_bar_width
)
1210 / FONT_WIDTH (f
->display
.x
->font
));
1211 temp_height
= ((windowinfo
.height
- 2 * intborder
1212 - f
->display
.x
->h_scroll_bar_height
)
1213 / FONT_HEIGHT (f
->display
.x
->font
));
1214 if (temp_width
!= f
->width
|| temp_height
!= f
->height
)
1216 change_frame_size (f
, max (1, temp_height
),
1217 max (1, temp_width
), 0, 1);
1218 x_resize_scroll_bars (f
);
1220 f
->display
.x
->left_pos
= windowinfo
.x
;
1221 f
->display
.x
->top_pos
= windowinfo
.y
;
1222 dumprectangle (f
, 0, 0, PIXEL_WIDTH (f
), PIXEL_HEIGHT (f
));
1226 f
->display
.x
->needs_exposure
= 0;
1227 if (updating_frame
!= f
)
1228 x_display_cursor (f
, 1);
1233 /* Handle any individual-rectangle expose events queued
1234 for various windows. */
1237 #else /* ! defined (HAVE_X11) */
1239 #endif /* ! defined (HAVE_X11) */
1245 frame_highlight (frame
)
1246 struct frame
*frame
;
1248 if (! EQ (Vx_no_window_manager
, Qnil
))
1249 XSetWindowBorder (x_current_display
, FRAME_X_WINDOW (frame
),
1250 frame
->display
.x
->border_pixel
);
1251 x_display_cursor (frame
, 1);
1255 frame_unhighlight (frame
)
1256 struct frame
*frame
;
1258 if (! EQ (Vx_no_window_manager
, Qnil
))
1259 XSetWindowBorderPixmap (x_current_display
, FRAME_X_WINDOW (frame
),
1260 frame
->display
.x
->border_tile
);
1261 x_display_cursor (frame
, 1);
1263 #else /* ! defined (HAVE_X11) */
1264 /* Dump the border-emphasis of frame F.
1265 If F is selected, this is a lining of the same color as the border,
1266 just within the border, occupying a portion of the internal border.
1267 If F is not selected, it is background in the same place.
1268 If ALWAYS is 0, don't bother explicitly drawing if it's background.
1270 ALWAYS = 1 is used when a frame becomes selected or deselected.
1271 In that case, we also turn the cursor off and on again
1272 so it will appear in the proper shape (solid if selected; else hollow.) */
1275 dumpborder (f
, always
)
1279 int thickness
= f
->display
.x
->internal_border_width
/ 2;
1280 int width
= PIXEL_WIDTH (f
);
1281 int height
= PIXEL_HEIGHT (f
);
1284 if (f
!= selected_frame
)
1289 pixel
= f
->display
.x
->background_pixel
;
1293 pixel
= f
->display
.x
->border_pixel
;
1296 XPixSet (FRAME_X_WINDOW (f
), 0, 0, width
, thickness
, pixel
);
1297 XPixSet (FRAME_X_WINDOW (f
), 0, 0, thickness
, height
, pixel
);
1298 XPixSet (FRAME_X_WINDOW (f
), 0, height
- thickness
, width
,
1300 XPixSet (FRAME_X_WINDOW (f
), width
- thickness
, 0, thickness
,
1304 x_display_cursor (f
, 1);
1306 #endif /* ! defined (HAVE_X11) */
1308 static void XTframe_rehighlight ();
1310 /* The focus has changed. Update the frames as necessary to reflect
1311 the new situation. Note that we can't change the selected frame
1312 here, because the lisp code we are interrupting might become confused.
1313 Each event gets marked with the frame in which it occurred, so the
1314 lisp code can tell when the switch took place by examining the events. */
1317 x_new_focus_frame (frame
)
1318 struct frame
*frame
;
1320 struct frame
*old_focus
= x_focus_frame
;
1321 int events_enqueued
= 0;
1323 if (frame
!= x_focus_frame
)
1325 /* Set this before calling other routines, so that they see
1326 the correct value of x_focus_frame. */
1327 x_focus_frame
= frame
;
1329 if (old_focus
&& old_focus
->auto_lower
)
1330 x_lower_frame (old_focus
);
1333 selected_frame
= frame
;
1334 XSET (XWINDOW (selected_frame
->selected_window
)->frame
,
1335 Lisp_Frame
, selected_frame
);
1336 Fselect_window (selected_frame
->selected_window
);
1337 choose_minibuf_frame ();
1340 if (x_focus_frame
&& x_focus_frame
->auto_raise
)
1341 x_raise_frame (x_focus_frame
);
1344 XTframe_rehighlight ();
1348 /* The focus has changed, or we have redirected a frame's focus to
1349 another frame (this happens when a frame uses a surrogate
1350 minibuffer frame). Shift the highlight as appropriate. */
1352 XTframe_rehighlight ()
1354 struct frame
*old_highlight
= x_highlight_frame
;
1359 ((XGCTYPE (FRAME_FOCUS_FRAME (x_focus_frame
)) == Lisp_Frame
)
1360 ? XFRAME (FRAME_FOCUS_FRAME (x_focus_frame
))
1362 if (! FRAME_LIVE_P (x_highlight_frame
))
1364 FRAME_FOCUS_FRAME (x_focus_frame
) = Qnil
;
1365 x_highlight_frame
= x_focus_frame
;
1369 x_highlight_frame
= 0;
1371 if (x_highlight_frame
!= old_highlight
)
1374 frame_unhighlight (old_highlight
);
1375 if (x_highlight_frame
)
1376 frame_highlight (x_highlight_frame
);
1380 /* Keyboard processing - modifier keys, vendor-specific keysyms, etc. */
1382 /* Which modifier keys are on which modifier bits?
1384 With each keystroke, X returns eight bits indicating which modifier
1385 keys were held down when the key was pressed. The interpretation
1386 of the top five modifier bits depends on what keys are attached
1387 to them. If the Meta_L and Meta_R keysyms are on mod5, then mod5
1390 x_meta_mod_mask is a mask containing the bits used for the meta key.
1391 It may have more than one bit set, if more than one modifier bit
1392 has meta keys on it. Basically, if EVENT is a KeyPress event,
1393 the meta key is pressed if (EVENT.state & x_meta_mod_mask) != 0.
1395 x_shift_lock_mask is LockMask if the XK_Shift_Lock keysym is on the
1396 lock modifier bit, or zero otherwise. Non-alphabetic keys should
1397 only be affected by the lock modifier bit if XK_Shift_Lock is in
1398 use; XK_Caps_Lock should only affect alphabetic keys. With this
1399 arrangement, the lock modifier should shift the character if
1400 (EVENT.state & x_shift_lock_mask) != 0. */
1401 static int x_meta_mod_mask
, x_shift_lock_mask
;
1403 /* These are like x_meta_mod_mask, but for different modifiers. */
1404 static int x_alt_mod_mask
, x_super_mod_mask
, x_hyper_mod_mask
;
1406 /* Initialize mode_switch_bit and modifier_meaning. */
1408 x_find_modifier_meanings ()
1410 int min_code
, max_code
;
1413 XModifierKeymap
*mods
;
1415 x_meta_mod_mask
= 0;
1416 x_shift_lock_mask
= 0;
1418 x_super_mod_mask
= 0;
1419 x_hyper_mod_mask
= 0;
1422 XDisplayKeycodes (x_current_display
, &min_code
, &max_code
);
1424 min_code
= x_current_display
->min_keycode
;
1425 max_code
= x_current_display
->max_keycode
;
1428 syms
= XGetKeyboardMapping (x_current_display
,
1429 min_code
, max_code
- min_code
+ 1,
1431 mods
= XGetModifierMapping (x_current_display
);
1433 /* Scan the modifier table to see which modifier bits the Meta and
1434 Alt keysyms are on. */
1436 int row
, col
; /* The row and column in the modifier table. */
1438 for (row
= 3; row
< 8; row
++)
1439 for (col
= 0; col
< mods
->max_keypermod
; col
++)
1442 mods
->modifiermap
[(row
* mods
->max_keypermod
) + col
];
1444 /* Are any of this keycode's keysyms a meta key? */
1448 for (code_col
= 0; code_col
< syms_per_code
; code_col
++)
1450 int sym
= syms
[((code
- min_code
) * syms_per_code
) + code_col
];
1456 x_meta_mod_mask
|= (1 << row
);
1461 x_alt_mod_mask
|= (1 << row
);
1466 x_hyper_mod_mask
|= (1 << row
);
1471 x_super_mod_mask
|= (1 << row
);
1475 /* Ignore this if it's not on the lock modifier. */
1476 if ((1 << row
) == LockMask
)
1477 x_shift_lock_mask
= LockMask
;
1485 /* If we couldn't find any meta keys, accept any alt keys as meta keys. */
1486 if (! x_meta_mod_mask
)
1488 x_meta_mod_mask
= x_alt_mod_mask
;
1492 /* If some keys are both alt and meta,
1493 make them just meta, not alt. */
1494 if (x_alt_mod_mask
& x_meta_mod_mask
)
1496 x_alt_mod_mask
&= ~x_meta_mod_mask
;
1499 XFree ((char *) syms
);
1500 XFreeModifiermap (mods
);
1504 /* Convert between the modifier bits X uses and the modifier bits
1507 x_x_to_emacs_modifiers (state
)
1510 return ( ((state
& (ShiftMask
| x_shift_lock_mask
)) ? shift_modifier
: 0)
1511 | ((state
& ControlMask
) ? ctrl_modifier
: 0)
1512 | ((state
& x_meta_mod_mask
) ? meta_modifier
: 0)
1513 | ((state
& x_alt_mod_mask
) ? alt_modifier
: 0)
1514 | ((state
& x_super_mod_mask
) ? super_modifier
: 0)
1515 | ((state
& x_hyper_mod_mask
) ? hyper_modifier
: 0));
1519 x_emacs_to_x_modifiers (state
)
1522 return ( ((state
& alt_modifier
) ? x_alt_mod_mask
: 0)
1523 | ((state
& super_modifier
) ? x_super_mod_mask
: 0)
1524 | ((state
& hyper_modifier
) ? x_hyper_mod_mask
: 0)
1525 | ((state
& shift_modifier
) ? ShiftMask
: 0)
1526 | ((state
& ctrl_modifier
) ? ControlMask
: 0)
1527 | ((state
& meta_modifier
) ? x_meta_mod_mask
: 0));
1530 /* Return true iff KEYSYM is a vendor-specific keysym that we should
1531 return as a function key. If you add a keysym to this, you should
1532 make sure that the tables make_lispy_event uses contain a suitable
1535 x_is_vendor_fkey (sym
)
1540 || (sym
== DXK_Remove
)
1546 /* Mouse clicks and mouse movement. Rah. */
1549 /* Given a pixel position (PIX_X, PIX_Y) on the frame F, return
1550 glyph co-ordinates in (*X, *Y). Set *BOUNDS to the rectangle
1551 that the glyph at X, Y occupies, if BOUNDS != 0. */
1553 pixel_to_glyph_coords (f
, pix_x
, pix_y
, x
, y
, bounds
)
1555 register unsigned int pix_x
, pix_y
;
1556 register int *x
, *y
;
1559 pix_x
= PIXEL_TO_CHAR_COL (f
, pix_x
);
1560 pix_y
= PIXEL_TO_CHAR_ROW (f
, pix_y
);
1564 bounds
->width
= FONT_WIDTH (f
->display
.x
->font
);
1565 bounds
->height
= FONT_HEIGHT (f
->display
.x
->font
);
1566 bounds
->x
= CHAR_TO_PIXEL_COL (f
, pix_x
);
1567 bounds
->y
= CHAR_TO_PIXEL_ROW (f
, pix_y
);
1570 if (pix_x
< 0) pix_x
= 0;
1571 else if (pix_x
> f
->width
) pix_x
= f
->width
;
1573 if (pix_y
< 0) pix_y
= 0;
1574 else if (pix_y
> f
->height
) pix_y
= f
->height
;
1580 /* Any buttons grabbed. */
1581 unsigned int x_mouse_grabbed
;
1583 /* Prepare a mouse-event in *RESULT for placement in the input queue.
1585 If the event is a button press, then note that we have grabbed
1589 construct_mouse_click (result
, event
, f
)
1590 struct input_event
*result
;
1591 XButtonEvent
*event
;
1594 /* Make the event type no_event; we'll change that when we decide
1596 result
->kind
= mouse_click
;
1597 XSET (result
->code
, Lisp_Int
, event
->button
- Button1
);
1598 result
->timestamp
= event
->time
;
1599 result
->modifiers
= (x_x_to_emacs_modifiers (event
->state
)
1600 | (event
->type
== ButtonRelease
1604 /* Notice if the mouse is still grabbed. */
1605 if (event
->type
== ButtonPress
)
1607 if (! x_mouse_grabbed
)
1608 Vmouse_depressed
= Qt
;
1609 x_mouse_grabbed
|= (1 << event
->button
);
1611 else if (event
->type
== ButtonRelease
)
1613 x_mouse_grabbed
&= ~(1 << event
->button
);
1614 if (!x_mouse_grabbed
)
1615 Vmouse_depressed
= Qnil
;
1621 pixel_to_glyph_coords (f
, event
->x
, event
->y
, &column
, &row
, NULL
);
1622 XFASTINT (result
->x
) = column
;
1623 XFASTINT (result
->y
) = row
;
1624 XSET (result
->frame_or_window
, Lisp_Frame
, f
);
1629 /* Mouse movement. Rah.
1631 In order to avoid asking for motion events and then throwing most
1632 of them away or busy-polling the server for mouse positions, we ask
1633 the server for pointer motion hints. This means that we get only
1634 one event per group of mouse movements. "Groups" are delimited by
1635 other kinds of events (focus changes and button clicks, for
1636 example), or by XQueryPointer calls; when one of these happens, we
1637 get another MotionNotify event the next time the mouse moves. This
1638 is at least as efficient as getting motion events when mouse
1639 tracking is on, and I suspect only negligibly worse when tracking
1642 The silly O'Reilly & Associates Nutshell guides barely document
1643 pointer motion hints at all (I think you have to infer how they
1644 work from an example), and the description of XQueryPointer doesn't
1645 mention that calling it causes you to get another motion hint from
1646 the server, which is very important. */
1648 /* Where the mouse was last time we reported a mouse event. */
1649 static FRAME_PTR last_mouse_frame
;
1650 static XRectangle last_mouse_glyph
;
1652 /* The scroll bar in which the last X motion event occurred.
1654 If the last X motion event occurred in a scroll bar, we set this
1655 so XTmouse_position can know whether to report a scroll bar motion or
1658 If the last X motion event didn't occur in a scroll bar, we set this
1659 to Qnil, to tell XTmouse_position to return an ordinary motion event. */
1660 static Lisp_Object last_mouse_scroll_bar
;
1662 /* This is a hack. We would really prefer that XTmouse_position would
1663 return the time associated with the position it returns, but there
1664 doesn't seem to be any way to wrest the timestamp from the server
1665 along with the position query. So, we just keep track of the time
1666 of the last movement we received, and return that in hopes that
1667 it's somewhat accurate. */
1668 static Time last_mouse_movement_time
;
1670 /* Function to report a mouse movement to the mainstream Emacs code.
1671 The input handler calls this.
1673 We have received a mouse movement event, which is given in *event.
1674 If the mouse is over a different glyph than it was last time, tell
1675 the mainstream emacs code by setting mouse_moved. If not, ask for
1676 another motion event, so we can check again the next time it moves. */
1678 note_mouse_movement (frame
, event
)
1680 XMotionEvent
*event
;
1683 last_mouse_movement_time
= event
->time
;
1685 /* Has the mouse moved off the glyph it was on at the last sighting? */
1686 if (event
->x
< last_mouse_glyph
.x
1687 || event
->x
>= last_mouse_glyph
.x
+ last_mouse_glyph
.width
1688 || event
->y
< last_mouse_glyph
.y
1689 || event
->y
>= last_mouse_glyph
.y
+ last_mouse_glyph
.height
)
1692 last_mouse_scroll_bar
= Qnil
;
1696 /* It's on the same glyph. Call XQueryPointer so we'll get an
1697 event the next time the mouse moves and we can see if it's
1698 *still* on the same glyph. */
1701 XQueryPointer (event
->display
, event
->window
,
1702 (Window
*) &dummy
, (Window
*) &dummy
,
1703 &dummy
, &dummy
, &dummy
, &dummy
,
1704 (unsigned int *) &dummy
);
1708 static struct scroll_bar
*x_window_to_scroll_bar ();
1709 static void x_scroll_bar_report_motion ();
1711 /* Return the current position of the mouse.
1713 If the mouse movement started in a scroll bar, set *f, *bar_window,
1714 and *part to the frame, window, and scroll bar part that the mouse
1715 is over. Set *x and *y to the portion and whole of the mouse's
1716 position on the scroll bar.
1718 If the mouse movement started elsewhere, set *f to the frame the
1719 mouse is on, *bar_window to nil, and *x and *y to the character cell
1722 Set *time to the server timestamp for the time at which the mouse
1723 was at this position.
1725 Don't store anything if we don't have a valid set of values to report.
1727 This clears the mouse_moved flag, so we can wait for the next mouse
1728 movement. This also calls XQueryPointer, which will cause the
1729 server to give us another MotionNotify when the mouse moves
1733 XTmouse_position (f
, bar_window
, part
, x
, y
, time
)
1735 Lisp_Object
*bar_window
;
1736 enum scroll_bar_part
*part
;
1738 unsigned long *time
;
1744 if (! NILP (last_mouse_scroll_bar
))
1745 x_scroll_bar_report_motion (f
, bar_window
, part
, x
, y
, time
);
1751 Window dummy_window
;
1755 last_mouse_scroll_bar
= Qnil
;
1757 /* Figure out which root window we're on. */
1758 XQueryPointer (x_current_display
,
1759 DefaultRootWindow (x_current_display
),
1761 /* The root window which contains the pointer. */
1764 /* Trash which we can't trust if the pointer is on
1765 a different screen. */
1768 /* The position on that root window. */
1771 /* More trash we can't trust. */
1774 /* Modifier keys and pointer buttons, about which
1776 (unsigned int *) &dummy
);
1778 /* Now we have a position on the root; find the innermost window
1779 containing the pointer. */
1783 int parent_x
, parent_y
;
1788 XTranslateCoordinates (x_current_display
,
1790 /* From-window, to-window. */
1793 /* From-position, to-position. */
1794 root_x
, root_y
, &win_x
, &win_y
,
1807 /* Now we know that:
1808 win is the innermost window containing the pointer
1809 (XTC says it has no child containing the pointer),
1810 win_x and win_y are the pointer's position in it
1811 (XTC did this the last time through), and
1812 parent_x and parent_y are the pointer's position in win's parent.
1813 (They are what win_x and win_y were when win was child.
1814 If win is the root window, it has no parent, and
1815 parent_{x,y} are invalid, but that's okay, because we'll
1816 never use them in that case.) */
1818 /* Is win one of our frames? */
1819 f1
= x_window_to_frame (win
);
1821 /* If not, is it one of our scroll bars? */
1824 struct scroll_bar
*bar
= x_window_to_scroll_bar (win
);
1828 f1
= XFRAME (WINDOW_FRAME (XWINDOW (bar
->window
)));
1836 /* Ok, we found a frame. Convert from pixels to characters
1837 and store all the values. */
1839 pixel_to_glyph_coords (f1
, win_x
, win_y
, &win_x
, &win_y
,
1845 XSET (*x
, Lisp_Int
, win_x
);
1846 XSET (*y
, Lisp_Int
, win_y
);
1847 *time
= last_mouse_movement_time
;
1855 #else /* ! defined (HAVE_X11) */
1856 #define XEvent XKeyPressedEvent
1857 #endif /* ! defined (HAVE_X11) */
1859 /* Scroll bar support. */
1861 /* Given an X window ID, find the struct scroll_bar which manages it.
1862 This can be called in GC, so we have to make sure to strip off mark
1864 static struct scroll_bar
*
1865 x_window_to_scroll_bar (window_id
)
1868 Lisp_Object tail
, frame
;
1870 for (tail
= Vframe_list
;
1871 XGCTYPE (tail
) == Lisp_Cons
;
1872 tail
= XCONS (tail
)->cdr
)
1874 Lisp_Object frame
= XCONS (tail
)->car
;
1875 Lisp_Object bar
, condemned
;
1877 /* All elements of Vframe_list should be frames. */
1878 if (XGCTYPE (frame
) != Lisp_Frame
)
1881 /* Scan this frame's scroll bar list for a scroll bar with the
1883 condemned
= FRAME_CONDEMNED_SCROLL_BARS (XFRAME (frame
));
1884 for (bar
= FRAME_SCROLL_BARS (XFRAME (frame
));
1885 /* This trick allows us to search both the ordinary and
1886 condemned scroll bar lists with one loop. */
1887 ! GC_NILP (bar
) || (bar
= condemned
,
1890 bar
= XSCROLL_BAR(bar
)->next
)
1891 if (SCROLL_BAR_X_WINDOW (XSCROLL_BAR (bar
)) == window_id
)
1892 return XSCROLL_BAR (bar
);
1898 /* Open a new X window to serve as a scroll bar, and return the
1899 scroll bar vector for it. */
1900 static struct scroll_bar
*
1901 x_scroll_bar_create (window
, top
, left
, width
, height
)
1902 struct window
*window
;
1903 int top
, left
, width
, height
;
1905 FRAME_PTR frame
= XFRAME (WINDOW_FRAME (window
));
1906 struct scroll_bar
*bar
=
1907 XSCROLL_BAR (Fmake_vector (make_number (SCROLL_BAR_VEC_SIZE
), Qnil
));
1912 XSetWindowAttributes a
;
1915 a
.background_pixel
= frame
->display
.x
->background_pixel
;
1916 a
.event_mask
= (ButtonPressMask
| ButtonReleaseMask
1917 | ButtonMotionMask
| PointerMotionHintMask
1919 a
.cursor
= x_vertical_scroll_bar_cursor
;
1921 mask
= (CWBackPixel
| CWEventMask
| CWCursor
);
1923 SET_SCROLL_BAR_X_WINDOW
1925 XCreateWindow (x_current_display
, FRAME_X_WINDOW (frame
),
1927 /* Position and size of scroll bar. */
1928 left
, top
, width
, height
,
1930 /* Border width, depth, class, and visual. */
1931 0, CopyFromParent
, CopyFromParent
, CopyFromParent
,
1937 XSET (bar
->window
, Lisp_Window
, window
);
1938 XSET (bar
->top
, Lisp_Int
, top
);
1939 XSET (bar
->left
, Lisp_Int
, left
);
1940 XSET (bar
->width
, Lisp_Int
, width
);
1941 XSET (bar
->height
, Lisp_Int
, height
);
1942 XSET (bar
->start
, Lisp_Int
, 0);
1943 XSET (bar
->end
, Lisp_Int
, 0);
1944 bar
->dragging
= Qnil
;
1946 /* Add bar to its frame's list of scroll bars. */
1947 bar
->next
= FRAME_SCROLL_BARS (frame
);
1949 XSET (FRAME_SCROLL_BARS (frame
), Lisp_Vector
, bar
);
1950 if (! NILP (bar
->next
))
1951 XSET (XSCROLL_BAR (bar
->next
)->prev
, Lisp_Vector
, bar
);
1953 XMapWindow (x_current_display
, SCROLL_BAR_X_WINDOW (bar
));
1960 /* Draw BAR's handle in the proper position.
1961 If the handle is already drawn from START to END, don't bother
1962 redrawing it, unless REBUILD is non-zero; in that case, always
1963 redraw it. (REBUILD is handy for drawing the handle after expose
1966 Normally, we want to constrain the start and end of the handle to
1967 fit inside its rectangle, but if the user is dragging the scroll bar
1968 handle, we want to let them drag it down all the way, so that the
1969 bar's top is as far down as it goes; otherwise, there's no way to
1970 move to the very end of the buffer. */
1972 x_scroll_bar_set_handle (bar
, start
, end
, rebuild
)
1973 struct scroll_bar
*bar
;
1977 int dragging
= ! NILP (bar
->dragging
);
1978 Window w
= SCROLL_BAR_X_WINDOW (bar
);
1979 GC gc
= XFRAME (WINDOW_FRAME (XWINDOW (bar
->window
)))->display
.x
->normal_gc
;
1981 /* If the display is already accurate, do nothing. */
1983 && start
== XINT (bar
->start
)
1984 && end
== XINT (bar
->end
))
1990 int inside_width
= VERTICAL_SCROLL_BAR_INSIDE_WIDTH (XINT (bar
->width
));
1991 int inside_height
= VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (XINT (bar
->height
));
1992 int top_range
= VERTICAL_SCROLL_BAR_TOP_RANGE (XINT (bar
->height
));
1994 /* Make sure the values are reasonable, and try to preserve
1995 the distance between start and end. */
1997 int length
= end
- start
;
2001 else if (start
> top_range
)
2003 end
= start
+ length
;
2007 else if (end
> top_range
&& ! dragging
)
2011 /* Store the adjusted setting in the scroll bar. */
2012 XSET (bar
->start
, Lisp_Int
, start
);
2013 XSET (bar
->end
, Lisp_Int
, end
);
2015 /* Clip the end position, just for display. */
2016 if (end
> top_range
)
2019 /* Draw bottom positions VERTICAL_SCROLL_BAR_MIN_HANDLE pixels
2020 below top positions, to make sure the handle is always at least
2021 that many pixels tall. */
2022 end
+= VERTICAL_SCROLL_BAR_MIN_HANDLE
;
2024 /* Draw the empty space above the handle. Note that we can't clear
2025 zero-height areas; that means "clear to end of window." */
2027 XClearArea (x_current_display
, w
,
2029 /* x, y, width, height, and exposures. */
2030 VERTICAL_SCROLL_BAR_LEFT_BORDER
,
2031 VERTICAL_SCROLL_BAR_TOP_BORDER
,
2032 inside_width
, start
,
2035 /* Draw the handle itself. */
2036 XFillRectangle (x_current_display
, w
, gc
,
2038 /* x, y, width, height */
2039 VERTICAL_SCROLL_BAR_LEFT_BORDER
,
2040 VERTICAL_SCROLL_BAR_TOP_BORDER
+ start
,
2041 inside_width
, end
- start
);
2044 /* Draw the empty space below the handle. Note that we can't
2045 clear zero-height areas; that means "clear to end of window." */
2046 if (end
< inside_height
)
2047 XClearArea (x_current_display
, w
,
2049 /* x, y, width, height, and exposures. */
2050 VERTICAL_SCROLL_BAR_LEFT_BORDER
,
2051 VERTICAL_SCROLL_BAR_TOP_BORDER
+ end
,
2052 inside_width
, inside_height
- end
,
2060 /* Move a scroll bar around on the screen, to accommodate changing
2061 window configurations. */
2063 x_scroll_bar_move (bar
, top
, left
, width
, height
)
2064 struct scroll_bar
*bar
;
2065 int top
, left
, width
, height
;
2071 unsigned int mask
= 0;
2078 if (left
!= XINT (bar
->left
)) mask
|= CWX
;
2079 if (top
!= XINT (bar
->top
)) mask
|= CWY
;
2080 if (width
!= XINT (bar
->width
)) mask
|= CWWidth
;
2081 if (height
!= XINT (bar
->height
)) mask
|= CWHeight
;
2084 XConfigureWindow (x_current_display
, SCROLL_BAR_X_WINDOW (bar
),
2088 XSET (bar
->left
, Lisp_Int
, left
);
2089 XSET (bar
->top
, Lisp_Int
, top
);
2090 XSET (bar
->width
, Lisp_Int
, width
);
2091 XSET (bar
->height
, Lisp_Int
, height
);
2096 /* Destroy the X window for BAR, and set its Emacs window's scroll bar
2099 x_scroll_bar_remove (bar
)
2100 struct scroll_bar
*bar
;
2102 FRAME_PTR f
= XFRAME (WINDOW_FRAME (XWINDOW (bar
->window
)));
2106 /* Destroy the window. */
2107 XDestroyWindow (x_current_display
, SCROLL_BAR_X_WINDOW (bar
));
2109 /* Disassociate this scroll bar from its window. */
2110 XWINDOW (bar
->window
)->vertical_scroll_bar
= Qnil
;
2115 /* Set the handle of the vertical scroll bar for WINDOW to indicate
2116 that we are displaying PORTION characters out of a total of WHOLE
2117 characters, starting at POSITION. If WINDOW has no scroll bar,
2120 XTset_vertical_scroll_bar (window
, portion
, whole
, position
)
2121 struct window
*window
;
2122 int portion
, whole
, position
;
2124 FRAME_PTR f
= XFRAME (WINDOW_FRAME (window
));
2125 int top
= XINT (window
->top
);
2126 int left
= WINDOW_VERTICAL_SCROLL_BAR_COLUMN (window
);
2127 int height
= WINDOW_VERTICAL_SCROLL_BAR_HEIGHT (window
);
2129 /* Where should this scroll bar be, pixelwise? */
2130 int pixel_top
= CHAR_TO_PIXEL_ROW (f
, top
);
2131 int pixel_left
= CHAR_TO_PIXEL_COL (f
, left
);
2132 int pixel_width
= VERTICAL_SCROLL_BAR_PIXEL_WIDTH (f
);
2133 int pixel_height
= VERTICAL_SCROLL_BAR_PIXEL_HEIGHT (f
, height
);
2135 struct scroll_bar
*bar
;
2137 /* Does the scroll bar exist yet? */
2138 if (NILP (window
->vertical_scroll_bar
))
2139 bar
= x_scroll_bar_create (window
,
2140 pixel_top
, pixel_left
,
2141 pixel_width
, pixel_height
);
2144 /* It may just need to be moved and resized. */
2145 bar
= XSCROLL_BAR (window
->vertical_scroll_bar
);
2146 x_scroll_bar_move (bar
, pixel_top
, pixel_left
, pixel_width
, pixel_height
);
2149 /* Set the scroll bar's current state, unless we're currently being
2151 if (NILP (bar
->dragging
))
2154 VERTICAL_SCROLL_BAR_TOP_RANGE (pixel_height
);
2157 x_scroll_bar_set_handle (bar
, 0, top_range
, 0);
2160 int start
= ((double) position
* top_range
) / whole
;
2161 int end
= ((double) (position
+ portion
) * top_range
) / whole
;
2163 x_scroll_bar_set_handle (bar
, start
, end
, 0);
2167 XSET (window
->vertical_scroll_bar
, Lisp_Vector
, bar
);
2171 /* The following three hooks are used when we're doing a thorough
2172 redisplay of the frame. We don't explicitly know which scroll bars
2173 are going to be deleted, because keeping track of when windows go
2174 away is a real pain - "Can you say set-window-configuration, boys
2175 and girls?" Instead, we just assert at the beginning of redisplay
2176 that *all* scroll bars are to be removed, and then save a scroll bar
2177 from the fiery pit when we actually redisplay its window. */
2179 /* Arrange for all scroll bars on FRAME to be removed at the next call
2180 to `*judge_scroll_bars_hook'. A scroll bar may be spared if
2181 `*redeem_scroll_bar_hook' is applied to its window before the judgement. */
2183 XTcondemn_scroll_bars (frame
)
2186 /* The condemned list should be empty at this point; if it's not,
2187 then the rest of Emacs isn't using the condemn/redeem/judge
2188 protocol correctly. */
2189 if (! NILP (FRAME_CONDEMNED_SCROLL_BARS (frame
)))
2192 /* Move them all to the "condemned" list. */
2193 FRAME_CONDEMNED_SCROLL_BARS (frame
) = FRAME_SCROLL_BARS (frame
);
2194 FRAME_SCROLL_BARS (frame
) = Qnil
;
2197 /* Unmark WINDOW's scroll bar for deletion in this judgement cycle.
2198 Note that WINDOW isn't necessarily condemned at all. */
2200 XTredeem_scroll_bar (window
)
2201 struct window
*window
;
2203 struct scroll_bar
*bar
;
2205 /* We can't redeem this window's scroll bar if it doesn't have one. */
2206 if (NILP (window
->vertical_scroll_bar
))
2209 bar
= XSCROLL_BAR (window
->vertical_scroll_bar
);
2211 /* Unlink it from the condemned list. */
2213 FRAME_PTR f
= XFRAME (WINDOW_FRAME (window
));
2215 if (NILP (bar
->prev
))
2217 /* If the prev pointer is nil, it must be the first in one of
2219 if (EQ (FRAME_SCROLL_BARS (f
), window
->vertical_scroll_bar
))
2220 /* It's not condemned. Everything's fine. */
2222 else if (EQ (FRAME_CONDEMNED_SCROLL_BARS (f
),
2223 window
->vertical_scroll_bar
))
2224 FRAME_CONDEMNED_SCROLL_BARS (f
) = bar
->next
;
2226 /* If its prev pointer is nil, it must be at the front of
2227 one or the other! */
2231 XSCROLL_BAR (bar
->prev
)->next
= bar
->next
;
2233 if (! NILP (bar
->next
))
2234 XSCROLL_BAR (bar
->next
)->prev
= bar
->prev
;
2236 bar
->next
= FRAME_SCROLL_BARS (f
);
2238 XSET (FRAME_SCROLL_BARS (f
), Lisp_Vector
, bar
);
2239 if (! NILP (bar
->next
))
2240 XSET (XSCROLL_BAR (bar
->next
)->prev
, Lisp_Vector
, bar
);
2244 /* Remove all scroll bars on FRAME that haven't been saved since the
2245 last call to `*condemn_scroll_bars_hook'. */
2247 XTjudge_scroll_bars (f
)
2250 Lisp_Object bar
, next
;
2252 bar
= FRAME_CONDEMNED_SCROLL_BARS (f
);
2254 /* Clear out the condemned list now so we won't try to process any
2255 more events on the hapless scroll bars. */
2256 FRAME_CONDEMNED_SCROLL_BARS (f
) = Qnil
;
2258 for (; ! NILP (bar
); bar
= next
)
2260 struct scroll_bar
*b
= XSCROLL_BAR (bar
);
2262 x_scroll_bar_remove (b
);
2265 b
->next
= b
->prev
= Qnil
;
2268 /* Now there should be no references to the condemned scroll bars,
2269 and they should get garbage-collected. */
2273 /* Handle an Expose or GraphicsExpose event on a scroll bar.
2275 This may be called from a signal handler, so we have to ignore GC
2278 x_scroll_bar_expose (bar
, event
)
2279 struct scroll_bar
*bar
;
2282 Window w
= SCROLL_BAR_X_WINDOW (bar
);
2283 GC gc
= XFRAME (WINDOW_FRAME (XWINDOW (bar
->window
)))->display
.x
->normal_gc
;
2287 x_scroll_bar_set_handle (bar
, XINT (bar
->start
), XINT (bar
->end
), 1);
2289 /* Draw a one-pixel border just inside the edges of the scroll bar. */
2290 XDrawRectangle (x_current_display
, w
, gc
,
2292 /* x, y, width, height */
2293 0, 0, XINT (bar
->width
) - 1, XINT (bar
->height
) - 1);
2295 /* Draw another line to make the extra-thick border on the right. */
2296 XFillRectangle (x_current_display
, w
, gc
,
2298 /* x, y, width, height */
2299 XINT (bar
->width
) - 2, 1, 1, XINT (bar
->height
) - 2);
2304 /* Handle a mouse click on the scroll bar BAR. If *EMACS_EVENT's kind
2305 is set to something other than no_event, it is enqueued.
2307 This may be called from a signal handler, so we have to ignore GC
2310 x_scroll_bar_handle_click (bar
, event
, emacs_event
)
2311 struct scroll_bar
*bar
;
2313 struct input_event
*emacs_event
;
2315 if (XGCTYPE (bar
->window
) != Lisp_Window
)
2318 emacs_event
->kind
= scroll_bar_click
;
2319 XSET (emacs_event
->code
, Lisp_Int
, event
->xbutton
.button
- Button1
);
2320 emacs_event
->modifiers
=
2321 (x_x_to_emacs_modifiers (event
->xbutton
.state
)
2322 | (event
->type
== ButtonRelease
2325 emacs_event
->frame_or_window
= bar
->window
;
2326 emacs_event
->timestamp
= event
->xbutton
.time
;
2328 int internal_height
=
2329 VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (XINT (bar
->height
));
2331 VERTICAL_SCROLL_BAR_TOP_RANGE (XINT (bar
->height
));
2332 int y
= event
->xbutton
.y
- VERTICAL_SCROLL_BAR_TOP_BORDER
;
2335 if (y
> top_range
) y
= top_range
;
2337 if (y
< XINT (bar
->start
))
2338 emacs_event
->part
= scroll_bar_above_handle
;
2339 else if (y
< XINT (bar
->end
) + VERTICAL_SCROLL_BAR_MIN_HANDLE
)
2340 emacs_event
->part
= scroll_bar_handle
;
2342 emacs_event
->part
= scroll_bar_below_handle
;
2344 /* Just because the user has clicked on the handle doesn't mean
2345 they want to drag it. Lisp code needs to be able to decide
2346 whether or not we're dragging. */
2348 /* If the user has just clicked on the handle, record where they're
2350 if (event
->type
== ButtonPress
2351 && emacs_event
->part
== scroll_bar_handle
)
2352 XSET (bar
->dragging
, Lisp_Int
, y
- XINT (bar
->start
));
2355 /* If the user has released the handle, set it to its final position. */
2356 if (event
->type
== ButtonRelease
2357 && ! NILP (bar
->dragging
))
2359 int new_start
= y
- XINT (bar
->dragging
);
2360 int new_end
= new_start
+ (XINT (bar
->end
) - XINT (bar
->start
));
2362 x_scroll_bar_set_handle (bar
, new_start
, new_end
, 0);
2363 bar
->dragging
= Qnil
;
2366 /* Same deal here as the other #if 0. */
2368 /* Clicks on the handle are always reported as occurring at the top of
2370 if (emacs_event
->part
== scroll_bar_handle
)
2371 emacs_event
->x
= bar
->start
;
2373 XSET (emacs_event
->x
, Lisp_Int
, y
);
2375 XSET (emacs_event
->x
, Lisp_Int
, y
);
2378 XSET (emacs_event
->y
, Lisp_Int
, top_range
);
2382 /* Handle some mouse motion while someone is dragging the scroll bar.
2384 This may be called from a signal handler, so we have to ignore GC
2387 x_scroll_bar_note_movement (bar
, event
)
2388 struct scroll_bar
*bar
;
2391 last_mouse_movement_time
= event
->xmotion
.time
;
2394 XSET (last_mouse_scroll_bar
, Lisp_Vector
, bar
);
2396 /* If we're dragging the bar, display it. */
2397 if (! GC_NILP (bar
->dragging
))
2399 /* Where should the handle be now? */
2400 int new_start
= event
->xmotion
.y
- XINT (bar
->dragging
);
2402 if (new_start
!= XINT (bar
->start
))
2404 int new_end
= new_start
+ (XINT (bar
->end
) - XINT (bar
->start
));
2406 x_scroll_bar_set_handle (bar
, new_start
, new_end
, 0);
2410 /* Call XQueryPointer so we'll get an event the next time the mouse
2411 moves and we can see *still* on the same position. */
2415 XQueryPointer (event
->xmotion
.display
, event
->xmotion
.window
,
2416 (Window
*) &dummy
, (Window
*) &dummy
,
2417 &dummy
, &dummy
, &dummy
, &dummy
,
2418 (unsigned int *) &dummy
);
2422 /* Return information to the user about the current position of the mouse
2423 on the scroll bar. */
2425 x_scroll_bar_report_motion (f
, bar_window
, part
, x
, y
, time
)
2427 Lisp_Object
*bar_window
;
2428 enum scroll_bar_part
*part
;
2430 unsigned long *time
;
2432 struct scroll_bar
*bar
= XSCROLL_BAR (last_mouse_scroll_bar
);
2434 Window dummy_window
;
2436 unsigned int dummy_mask
;
2440 /* Get the mouse's position relative to the scroll bar window, and
2442 if (! XQueryPointer (x_current_display
,
2443 SCROLL_BAR_X_WINDOW (bar
),
2445 /* Root, child, root x and root y. */
2446 &dummy_window
, &dummy_window
,
2447 &dummy_coord
, &dummy_coord
,
2449 /* Position relative to scroll bar. */
2452 /* Mouse buttons and modifier keys. */
2458 = VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (XINT (bar
->height
));
2460 = VERTICAL_SCROLL_BAR_TOP_RANGE (XINT (bar
->height
));
2462 win_y
-= VERTICAL_SCROLL_BAR_TOP_BORDER
;
2464 if (! NILP (bar
->dragging
))
2465 win_y
-= XINT (bar
->dragging
);
2469 if (win_y
> top_range
)
2472 *f
= XFRAME (WINDOW_FRAME (XWINDOW (bar
->window
)));
2473 *bar_window
= bar
->window
;
2475 if (! NILP (bar
->dragging
))
2476 *part
= scroll_bar_handle
;
2477 else if (win_y
< XINT (bar
->start
))
2478 *part
= scroll_bar_above_handle
;
2479 else if (win_y
< XINT (bar
->end
) + VERTICAL_SCROLL_BAR_MIN_HANDLE
)
2480 *part
= scroll_bar_handle
;
2482 *part
= scroll_bar_below_handle
;
2484 XSET (*x
, Lisp_Int
, win_y
);
2485 XSET (*y
, Lisp_Int
, top_range
);
2488 last_mouse_scroll_bar
= Qnil
;
2491 *time
= last_mouse_movement_time
;
2497 /* The screen has been cleared so we may have changed foreground or
2498 background colors, and the scroll bars may need to be redrawn.
2499 Clear out the scroll bars, and ask for expose events, so we can
2502 x_scroll_bar_clear (f
)
2507 for (bar
= FRAME_SCROLL_BARS (f
);
2508 XTYPE (bar
) == Lisp_Vector
;
2509 bar
= XSCROLL_BAR (bar
)->next
)
2510 XClearArea (x_current_display
, SCROLL_BAR_X_WINDOW (XSCROLL_BAR (bar
)),
2516 /* The main X event-reading loop - XTread_socket. */
2518 /* Timestamp of enter window event. This is only used by XTread_socket,
2519 but we have to put it out here, since static variables within functions
2520 sometimes don't work. */
2521 static Time enter_timestamp
;
2523 /* This holds the state XLookupString needs to implement dead keys
2524 and other tricks known as "compose processing". _X Window System_
2525 says that a portable program can't use this, but Stephen Gildea assures
2526 me that letting the compiler initialize it to zeros will work okay.
2528 This must be defined outside of XTread_socket, for the same reasons
2529 given for enter_timestamp, above. */
2530 static XComposeStatus compose_status
;
2532 /* Communication with window managers. */
2533 Atom Xatom_wm_protocols
;
2535 /* Kinds of protocol things we may receive. */
2536 Atom Xatom_wm_take_focus
;
2537 Atom Xatom_wm_save_yourself
;
2538 Atom Xatom_wm_delete_window
;
2540 /* Other WM communication */
2541 Atom Xatom_wm_configure_denied
; /* When our config request is denied */
2542 Atom Xatom_wm_window_moved
; /* When the WM moves us. */
2544 /* Window manager communication. */
2545 Atom Xatom_wm_change_state
;
2547 /* Record the last 100 characters stored
2548 to help debug the loss-of-chars-during-GC problem. */
2550 short temp_buffer
[100];
2552 /* Read events coming from the X server.
2553 This routine is called by the SIGIO handler.
2554 We return as soon as there are no more events to be read.
2556 Events representing keys are stored in buffer BUFP,
2557 which can hold up to NUMCHARS characters.
2558 We return the number of characters stored into the buffer,
2559 thus pretending to be `read'.
2561 WAITP is nonzero if we should block until input arrives.
2562 EXPECTED is nonzero if the caller knows input is available. */
2565 XTread_socket (sd
, bufp
, numchars
, waitp
, expected
)
2567 register struct input_event
*bufp
;
2568 register int numchars
;
2575 int items_pending
; /* How many items are in the X queue. */
2582 if (interrupt_input_blocked
)
2584 interrupt_input_pending
= 1;
2588 interrupt_input_pending
= 0;
2592 abort (); /* Don't think this happens. */
2595 /* If available, Xlib uses FIOSNBIO to make the socket
2596 non-blocking, and then looks for EWOULDBLOCK. If O_NDELAY is set,
2597 FIOSNBIO is ignored, and instead of signalling EWOULDBLOCK,
2598 a read returns 0, which Xlib interprets as equivalent to EPIPE. */
2599 fcntl (fileno (stdin
), F_SETFL
, 0);
2600 #endif /* ! defined (FIOSNBIO) */
2604 if (! (fcntl (fileno (stdin
), F_GETFL
, 0) & O_NDELAY
))
2606 extern int read_alarm_should_throw
;
2607 read_alarm_should_throw
= 1;
2608 XPeekEvent (XDISPLAY
&event
);
2609 read_alarm_should_throw
= 0;
2611 #endif /* HAVE_SELECT */
2614 while (XStuffPending () != 0)
2616 XNextEvent (XDISPLAY
&event
);
2624 if (event
.xclient
.message_type
== Xatom_wm_protocols
2625 && event
.xclient
.format
== 32)
2627 if (event
.xclient
.data
.l
[0] == Xatom_wm_take_focus
)
2629 f
= x_window_to_frame (event
.xclient
.window
);
2631 x_focus_on_frame (f
);
2632 /* Not certain about handling scroll bars here */
2634 else if (event
.xclient
.data
.l
[0] == Xatom_wm_save_yourself
)
2636 /* Save state modify the WM_COMMAND property to
2637 something which can reinstate us. This notifies
2638 the session manager, who's looking for such a
2639 PropertyNotify. Can restart processing when
2640 a keyboard or mouse event arrives. */
2645 else if (event
.xclient
.data
.l
[0] == Xatom_wm_delete_window
)
2647 struct frame
*f
= x_window_to_frame (event
.xclient
.window
);
2655 else if (event
.xclient
.message_type
== Xatom_wm_configure_denied
)
2658 else if (event
.xclient
.message_type
== Xatom_wm_window_moved
)
2662 new_x
= event
.xclient
.data
.s
[0];
2663 new_y
= event
.xclient
.data
.s
[1];
2668 #ifdef NEW_SELECTIONS
2669 case SelectionNotify
:
2670 x_handle_selection_notify (&event
);
2674 case SelectionClear
: /* Someone has grabbed ownership. */
2675 #ifdef NEW_SELECTIONS
2677 XSelectionClearEvent
*eventp
= (XSelectionClearEvent
*) &event
;
2682 bufp
->kind
= selection_clear_event
;
2683 SELECTION_EVENT_DISPLAY (bufp
) = eventp
->display
;
2684 SELECTION_EVENT_SELECTION (bufp
) = eventp
->selection
;
2685 SELECTION_EVENT_TIME (bufp
) = eventp
->time
;
2692 x_disown_selection (event
.xselectionclear
.window
,
2693 event
.xselectionclear
.selection
,
2694 event
.xselectionclear
.time
);
2698 case SelectionRequest
: /* Someone wants our selection. */
2699 #ifdef NEW_SELECTIONS
2701 XSelectionRequestEvent
*eventp
= (XSelectionRequestEvent
*) &event
;
2706 bufp
->kind
= selection_request_event
;
2707 SELECTION_EVENT_DISPLAY (bufp
) = eventp
->display
;
2708 SELECTION_EVENT_REQUESTOR (bufp
) = eventp
->requestor
;
2709 SELECTION_EVENT_SELECTION (bufp
) = eventp
->selection
;
2710 SELECTION_EVENT_TARGET (bufp
) = eventp
->target
;
2711 SELECTION_EVENT_PROPERTY (bufp
) = eventp
->property
;
2712 SELECTION_EVENT_TIME (bufp
) = eventp
->time
;
2719 x_answer_selection_request (event
);
2723 case PropertyNotify
:
2724 #ifdef NEW_SELECTIONS
2725 x_handle_property_notify (&event
);
2727 /* If we're being told about a root window property, then it's
2728 a cut buffer change. */
2729 if (event
.xproperty
.window
== ROOT_WINDOW
)
2730 x_invalidate_cut_buffer_cache (&event
.xproperty
);
2732 /* Otherwise, we're probably handling an incremental
2733 selection transmission. */
2736 /* If we were to do this synchronously, there'd be no worry
2737 about re-selecting. */
2738 x_send_incremental (event
);
2743 case ReparentNotify
:
2744 f
= x_window_to_frame (event
.xreparent
.window
);
2746 f
->display
.x
->parent_desc
= event
.xreparent
.parent
;
2750 f
= x_window_to_frame (event
.xexpose
.window
);
2753 if (f
->async_visible
== 0)
2755 f
->async_visible
= 1;
2756 f
->async_iconified
= 0;
2757 SET_FRAME_GARBAGED (f
);
2761 dumprectangle (x_window_to_frame (event
.xexpose
.window
),
2762 event
.xexpose
.x
, event
.xexpose
.y
,
2763 event
.xexpose
.width
, event
.xexpose
.height
);
2768 struct scroll_bar
*bar
2769 = x_window_to_scroll_bar (event
.xexpose
.window
);
2772 x_scroll_bar_expose (bar
, &event
);
2776 case GraphicsExpose
: /* This occurs when an XCopyArea's
2777 source area was obscured or not
2779 f
= x_window_to_frame (event
.xgraphicsexpose
.drawable
);
2783 event
.xgraphicsexpose
.x
, event
.xgraphicsexpose
.y
,
2784 event
.xgraphicsexpose
.width
,
2785 event
.xgraphicsexpose
.height
);
2789 case NoExpose
: /* This occurs when an XCopyArea's
2790 source area was completely
2793 #else /* ! defined (HAVE_X11) */
2795 if (event
.subwindow
!= 0)
2796 break; /* duplicate event */
2797 f
= x_window_to_frame (event
.window
);
2798 if (event
.window
== f
->display
.x
->icon_desc
)
2801 f
->async_iconified
= 1;
2803 if (event
.window
== FRAME_X_WINDOW (f
))
2805 /* Say must check all windows' needs_exposure flags. */
2806 expose_all_windows
= 1;
2807 f
->display
.x
->needs_exposure
= 1;
2808 f
->async_visible
= 1;
2813 if (event
.subwindow
!= 0)
2814 break; /* duplicate event */
2815 f
= x_window_to_frame (event
.window
);
2816 if (event
.window
== f
->display
.x
->icon_desc
)
2821 /* If window already needs full redraw, ignore this rectangle. */
2822 if (expose_all_windows
&& f
->display
.x
->needs_exposure
)
2824 /* Put the event on the queue of rectangles to redraw. */
2825 if (enqueue_event (&event
, &x_expose_queue
))
2826 /* If it is full, we can't record the rectangle,
2827 so redraw this entire window. */
2829 /* Say must check all windows' needs_exposure flags. */
2830 expose_all_windows
= 1;
2831 f
->display
.x
->needs_exposure
= 1;
2836 /* This should happen only when we are expecting it,
2837 in x_read_exposes. */
2839 #endif /* ! defined (HAVE_X11) */
2843 f
= x_window_to_frame (event
.xunmap
.window
);
2844 if (f
) /* F may no longer exist if
2845 the frame was deleted. */
2847 /* While a frame is unmapped, display generation is
2848 disabled; you don't want to spend time updating a
2849 display that won't ever be seen. */
2850 f
->async_visible
= 0;
2851 /* The window manager never makes a window invisible
2852 ("withdrawn"); all it does is switch between visible
2853 and iconified. Frames get into the invisible state
2854 only through x_make_frame_invisible.
2855 if (FRAME_VISIBLE_P (f) || FRAME_ICONIFIED_P (f))
2856 f->async_iconified = 1;
2861 f = x_window_to_frame (event.xmap.window);
2864 f->async_visible = 1;
2865 f->async_iconified = 0;
2867 /* wait_reading_process_input will notice this and update
2868 the frame's display structures. */
2869 SET_FRAME_GARBAGED (f
);
2873 /* Turn off processing if we become fully obscured. */
2874 case VisibilityNotify
:
2877 #else /* ! defined (HAVE_X11) */
2879 f
= x_window_to_frame (event
.window
);
2880 if (event
.window
== f
->display
.x
->icon_desc
)
2881 f
->async_iconified
= 0;
2882 if (event
.window
== FRAME_X_WINDOW (f
))
2883 f
->async_visible
= 0;
2885 #endif /* ! defined (HAVE_X11) */
2889 f
= x_window_to_frame (event
.xkey
.window
);
2893 KeySym keysym
, orig_keysym
;
2894 char copy_buffer
[80];
2898 |= x_emacs_to_x_modifiers (extra_keyboard_modifiers
);
2899 modifiers
= event
.xkey
.state
;
2901 /* This will have to go some day... */
2903 /* make_lispy_event turns chars into control chars.
2904 Don't do it here because XLookupString is too eager. */
2905 event
.xkey
.state
&= ~ControlMask
;
2907 XLookupString (&event
.xkey
, copy_buffer
, 80, &keysym
,
2910 /* Strip off the vendor-specific keysym bit, and take a shot
2911 at recognizing the codes. HP servers have extra keysyms
2912 that fit into the MiscFunctionKey category. */
2913 orig_keysym
= keysym
;
2918 if (((keysym
>= XK_BackSpace
&& keysym
<= XK_Escape
)
2919 || keysym
== XK_Delete
2920 || IsCursorKey (keysym
) /* 0xff50 <= x < 0xff60 */
2921 || IsMiscFunctionKey (keysym
) /* 0xff60 <= x < VARIES */
2923 /* This recognizes the "extended function keys".
2924 It seems there's no cleaner way.
2925 Test IsModifierKey to avoid handling mode_switch
2927 || ((unsigned) (keysym
) >= XK_Select
2928 && (unsigned)(keysym
) < XK_KP_Space
)
2930 || IsKeypadKey (keysym
) /* 0xff80 <= x < 0xffbe */
2931 || IsFunctionKey (keysym
) /* 0xffbe <= x < 0xffe1 */
2932 || x_is_vendor_fkey (orig_keysym
))
2933 && ! IsModifierKey (orig_keysym
)) /* wherever */
2935 if (temp_index
== sizeof temp_buffer
/ sizeof (short))
2937 temp_buffer
[temp_index
++] = keysym
;
2938 bufp
->kind
= non_ascii_keystroke
;
2939 XSET (bufp
->code
, Lisp_Int
, (unsigned) keysym
- 0xff00);
2940 XSET (bufp
->frame_or_window
, Lisp_Frame
, f
);
2941 bufp
->modifiers
= x_x_to_emacs_modifiers (modifiers
);
2942 bufp
->timestamp
= event
.xkey
.time
;
2947 else if (numchars
> nbytes
)
2951 for (i
= 0; i
< nbytes
; i
++)
2953 if (temp_index
== sizeof temp_buffer
/ sizeof (short))
2955 temp_buffer
[temp_index
++] = copy_buffer
[i
];
2956 bufp
->kind
= ascii_keystroke
;
2957 XSET (bufp
->code
, Lisp_Int
, copy_buffer
[i
]);
2958 XSET (bufp
->frame_or_window
, Lisp_Frame
, f
);
2959 bufp
->modifiers
= x_x_to_emacs_modifiers (modifiers
);
2960 bufp
->timestamp
= event
.xkey
.time
;
2974 #else /* ! defined (HAVE_X11) */
2977 register char *where_mapping
;
2979 f
= x_window_to_frame (event
.window
);
2980 /* Ignore keys typed on icon windows. */
2981 if (f
!= 0 && event
.window
== f
->display
.x
->icon_desc
)
2983 where_mapping
= XLookupMapping (&event
, &nbytes
);
2984 /* Nasty fix for arrow keys */
2985 if (!nbytes
&& IsCursorKey (event
.detail
& 0xff))
2987 switch (event
.detail
& 0xff)
2989 case KC_CURSOR_LEFT
:
2990 where_mapping
= "\002";
2992 case KC_CURSOR_RIGHT
:
2993 where_mapping
= "\006";
2996 where_mapping
= "\020";
2998 case KC_CURSOR_DOWN
:
2999 where_mapping
= "\016";
3004 if (numchars
- nbytes
> 0)
3008 for (i
= 0; i
< nbytes
; i
++)
3010 bufp
->kind
= ascii_keystroke
;
3011 XSET (bufp
->code
, Lisp_Int
, where_mapping
[i
]);
3012 XSET (bufp
->time
, Lisp_Int
, event
.xkey
.time
);
3013 XSET (bufp
->frame_or_window
, Lisp_Frame
, f
);
3021 #endif /* ! defined (HAVE_X11) */
3025 /* Here's a possible interpretation of the whole
3026 FocusIn-EnterNotify FocusOut-LeaveNotify mess. If you get a
3027 FocusIn event, you have to get a FocusOut event before you
3028 relinquish the focus. If you haven't received a FocusIn event,
3029 then a mere LeaveNotify is enough to free you. */
3032 f
= x_window_to_frame (event
.xcrossing
.window
);
3034 if (event
.xcrossing
.focus
) /* Entered Window */
3036 /* Avoid nasty pop/raise loops. */
3037 if (f
&& (!(f
->auto_raise
)
3039 || (event
.xcrossing
.time
- enter_timestamp
) > 500))
3041 x_new_focus_frame (f
);
3042 enter_timestamp
= event
.xcrossing
.time
;
3045 else if (f
== x_focus_frame
)
3046 x_new_focus_frame (0);
3051 f
= x_window_to_frame (event
.xfocus
.window
);
3052 if (event
.xfocus
.detail
!= NotifyPointer
)
3053 x_focus_event_frame
= f
;
3055 x_new_focus_frame (f
);
3060 f
= x_window_to_frame (event
.xcrossing
.window
);
3062 if (event
.xcrossing
.focus
)
3064 if (! x_focus_event_frame
)
3065 x_new_focus_frame (0);
3067 x_new_focus_frame (f
);
3071 if (f
== x_focus_event_frame
)
3072 x_focus_event_frame
= 0;
3073 if (f
== x_focus_frame
)
3074 x_new_focus_frame (0);
3079 f
= x_window_to_frame (event
.xfocus
.window
);
3080 if (event
.xfocus
.detail
!= NotifyPointer
3081 && f
== x_focus_event_frame
)
3082 x_focus_event_frame
= 0;
3083 if (f
&& f
== x_focus_frame
)
3084 x_new_focus_frame (0);
3087 #else /* ! defined (HAVE_X11) */
3090 if ((event
.detail
& 0xFF) == 1)
3091 break; /* Coming from our own subwindow */
3092 if (event
.subwindow
!= 0)
3093 break; /* Entering our own subwindow. */
3096 f
= x_window_to_frame (event
.window
);
3099 x_new_focus_frame (f
);
3104 if ((event
.detail
& 0xFF) == 1)
3105 break; /* Entering our own subwindow */
3106 if (event
.subwindow
!= 0)
3107 break; /* Leaving our own subwindow. */
3110 if (x_focus_frame
== 0
3111 && x_input_frame
!= 0
3112 && x_input_frame
== x_window_to_frame (event
.window
)
3113 && event
.window
== FRAME_X_WINDOW (x_input_frame
))
3118 frame_unhighlight (f
);
3121 #endif /* ! defined (HAVE_X11) */
3126 f
= x_window_to_frame (event
.xmotion
.window
);
3128 note_mouse_movement (f
, &event
.xmotion
);
3131 struct scroll_bar
*bar
=
3132 x_window_to_scroll_bar (event
.xmotion
.window
);
3135 x_scroll_bar_note_movement (bar
, &event
);
3140 case ConfigureNotify
:
3141 f
= x_window_to_frame (event
.xconfigure
.window
);
3144 int rows
= PIXEL_TO_CHAR_HEIGHT (f
, event
.xconfigure
.height
);
3145 int columns
= PIXEL_TO_CHAR_WIDTH (f
, event
.xconfigure
.width
);
3147 /* Even if the number of character rows and columns has
3148 not changed, the font size may have changed, so we need
3149 to check the pixel dimensions as well. */
3150 if (columns
!= f
->width
3151 || rows
!= f
->height
3152 || event
.xconfigure
.width
!= f
->display
.x
->pixel_width
3153 || event
.xconfigure
.height
!= f
->display
.x
->pixel_height
)
3155 change_frame_size (f
, rows
, columns
, 0, 1);
3156 SET_FRAME_GARBAGED (f
);
3159 if (! event
.xconfigure
.send_event
)
3164 /* Coords are relative to the parent.
3165 Convert them to root-relative. */
3166 XTranslateCoordinates (x_current_display
,
3168 /* From-window, to-window. */
3169 f
->display
.x
->parent_desc
,
3172 /* From-position, to-position. */
3179 event
.xconfigure
.x
= win_x
;
3180 event
.xconfigure
.y
= win_y
;
3183 f
->display
.x
->pixel_width
= event
.xconfigure
.width
;
3184 f
->display
.x
->pixel_height
= event
.xconfigure
.height
;
3185 f
->display
.x
->left_pos
= event
.xconfigure
.x
;
3186 f
->display
.x
->top_pos
= event
.xconfigure
.y
;
3193 /* If we decide we want to generate an event to be seen
3194 by the rest of Emacs, we put it here. */
3195 struct input_event emacs_event
;
3196 emacs_event
.kind
= no_event
;
3198 f
= x_window_to_frame (event
.xbutton
.window
);
3201 if (!x_focus_frame
|| (f
== x_focus_frame
))
3202 construct_mouse_click (&emacs_event
,
3207 struct scroll_bar
*bar
=
3208 x_window_to_scroll_bar (event
.xbutton
.window
);
3211 x_scroll_bar_handle_click (bar
, &event
, &emacs_event
);
3214 if (numchars
>= 1 && emacs_event
.kind
!= no_event
)
3216 bcopy (&emacs_event
, bufp
, sizeof (struct input_event
));
3224 #else /* ! defined (HAVE_X11) */
3226 case ButtonReleased
:
3227 f
= x_window_to_frame (event
.window
);
3230 if (event
.window
== f
->display
.x
->icon_desc
)
3232 x_make_frame_visible (f
);
3234 if (warp_mouse_on_deiconify
)
3235 XWarpMouse (FRAME_X_WINDOW (f
), 10, 10);
3238 if (event
.window
== FRAME_X_WINDOW (f
))
3244 enqueue_event (&event
, &x_mouse_queue
);
3247 bufp
->kind
= ascii_keystroke
;
3248 bufp
->code
= (char) 'X' & 037; /* C-x */
3249 XSET (bufp
->frame_or_window
, Lisp_Frame
, f
);
3250 XSET (bufp
->time
, Lisp_Int
, event
.xkey
.time
);
3253 bufp
->kind
= ascii_keystroke
;
3254 bufp
->code
= (char) 0; /* C-@ */
3255 XSET (bufp
->frame_or_window
, Lisp_Frame
, f
);
3256 XSET (bufp
->time
, Lisp_Int
, event
.xkey
.time
);
3263 #endif /* ! defined (HAVE_X11) */
3267 case CirculateNotify
:
3269 case CirculateRequest
:
3272 #endif /* ! defined (HAVE_X11) */
3275 /* Someone has changed the keyboard mapping - update the
3277 switch (event
.xmapping
.request
)
3279 case MappingModifier
:
3280 x_find_modifier_meanings ();
3281 /* This is meant to fall through. */
3282 case MappingKeyboard
:
3283 XRefreshKeyboardMapping (&event
.xmapping
);
3293 if (expected
&& ! event_found
)
3295 /* AOJ 880406: if select returns true but XPending doesn't, it means that
3296 there is an EOF condition; in other words, that X has died.
3297 Act as if there had been a hangup. */
3298 int fd
= ConnectionNumber (x_current_display
);
3302 if (0 != select (fd
+ 1, &mask
, (long *) 0, (long *) 0,
3304 && !XStuffPending ())
3305 kill (getpid (), SIGHUP
);
3307 #endif /* ! defined (HAVE_SELECT) */
3310 if (updating_frame
== 0)
3311 x_do_pending_expose ();
3319 /* Read and process only Expose events
3320 until we get an ExposeCopy event; then return.
3321 This is used in insert/delete line.
3322 We assume input is already blocked. */
3328 XKeyPressedEvent event
;
3332 /* while there are more events*/
3333 XMaskEvent (ExposeWindow
| ExposeRegion
| ExposeCopy
, &event
);
3337 if (event
.subwindow
!= 0)
3338 break; /* duplicate event */
3339 f
= x_window_to_frame (event
.window
);
3340 if (event
.window
== f
->display
.x
->icon_desc
)
3345 if (event
.window
== FRAME_X_WINDOW (f
))
3347 expose_all_windows
= 1;
3348 f
->display
.x
->needs_exposure
= 1;
3354 if (event
.subwindow
!= 0)
3355 break; /* duplicate event */
3356 f
= x_window_to_frame (event
.window
);
3357 if (event
.window
== f
->display
.x
->icon_desc
)
3362 /* If window already needs full redraw, ignore this rectangle. */
3363 if (expose_all_windows
&& f
->display
.x
->needs_exposure
)
3365 /* Put the event on the queue of rectangles to redraw. */
3366 if (enqueue_event (&event
, &x_expose_queue
))
3367 /* If it is full, we can't record the rectangle,
3368 so redraw this entire window. */
3370 /* Say must check all windows' needs_exposure flags. */
3371 expose_all_windows
= 1;
3372 f
->display
.x
->needs_exposure
= 1;
3381 #endif /* HAVE_X11 */
3384 /* Drawing the cursor. */
3387 /* Draw a hollow box cursor. Don't change the inside of the box. */
3393 int left
= CHAR_TO_PIXEL_COL (f
, f
->cursor_x
);
3394 int top
= CHAR_TO_PIXEL_ROW (f
, f
->cursor_y
);
3395 int width
= FONT_WIDTH (f
->display
.x
->font
);
3396 int height
= FONT_HEIGHT (f
->display
.x
->font
);
3399 XDrawRectangle (x_current_display
, FRAME_X_WINDOW (f
),
3400 f
->display
.x
->cursor_gc
,
3401 left
, top
, width
- 1, height
- 1);
3402 #else /* ! defined (HAVE_X11) */
3403 XPixSet (FRAME_X_WINDOW (f
),
3404 left
, top
, width
, 1,
3405 f
->display
.x
->cursor_pixel
);
3407 XPixSet (FRAME_X_WINDOW (f
),
3408 left
, top
, 1, height
,
3409 f
->display
.x
->cursor_pixel
);
3411 XPixSet (FRAME_X_WINDOW (f
),
3412 left
+width
-1, top
, 1, height
,
3413 f
->display
.x
->cursor_pixel
);
3415 XPixSet (FRAME_X_WINDOW (f
),
3416 left
, top
+height
-1, width
, 1,
3417 f
->display
.x
->cursor_pixel
);
3418 #endif /* ! defined (HAVE_X11) */
3421 /* Clear the cursor of frame F to background color,
3422 and mark the cursor as not shown.
3423 This is used when the text where the cursor is
3424 is about to be rewritten. */
3432 if (! FRAME_VISIBLE_P (f
)
3433 || f
->phys_cursor_x
< 0)
3437 x_display_cursor (f
, 0);
3438 #else /* ! defined (HAVE_X11) */
3439 XPixSet (FRAME_X_WINDOW (f
),
3440 CHAR_TO_PIXEL_COL (f
, f
->phys_cursor_x
),
3441 CHAR_TO_PIXEL_ROW (f
, f
->phys_cursor_y
),
3442 FONT_WIDTH (f
->display
.x
->font
), FONT_HEIGHT (f
->display
.x
->font
),
3443 f
->display
.x
->background_pixel
);
3444 #endif /* ! defined (HAVE_X11) */
3445 f
->phys_cursor_x
= -1;
3448 /* Redraw the glyph at ROW, COLUMN on frame F, in the style
3449 HIGHLIGHT. HIGHLIGHT is as defined for dumpglyphs. Return the
3453 x_draw_single_glyph (f
, row
, column
, glyph
, highlight
)
3460 CHAR_TO_PIXEL_COL (f
, column
),
3461 CHAR_TO_PIXEL_ROW (f
, row
),
3462 &glyph
, 1, highlight
);
3466 x_display_bar_cursor (f
, on
)
3470 struct frame_glyphs
*current_glyphs
= FRAME_CURRENT_GLYPHS (f
);
3472 /* This is pointless on invisible frames, and dangerous on garbaged
3473 frames; in the latter case, the frame may be in the midst of
3474 changing its size, and curs_x and curs_y may be off the frame. */
3475 if (! FRAME_VISIBLE_P (f
) || FRAME_GARBAGED_P (f
))
3478 if (! on
&& f
->phys_cursor_x
< 0)
3481 /* If we're not updating, then we want to use the current frame's
3482 cursor position, not our local idea of where the cursor ought to be. */
3483 if (f
!= updating_frame
)
3485 curs_x
= FRAME_CURSOR_X (f
);
3486 curs_y
= FRAME_CURSOR_Y (f
);
3489 /* If there is anything wrong with the current cursor state, remove it. */
3490 if (f
->phys_cursor_x
>= 0
3492 || f
->phys_cursor_x
!= curs_x
3493 || f
->phys_cursor_y
!= curs_y
3494 || f
->display
.x
->current_cursor
!= bar_cursor
))
3496 /* Erase the cursor by redrawing the character underneath it. */
3497 x_draw_single_glyph (f
, f
->phys_cursor_y
, f
->phys_cursor_x
,
3498 f
->phys_cursor_glyph
,
3499 current_glyphs
->highlight
[f
->phys_cursor_y
]);
3500 f
->phys_cursor_x
= -1;
3503 /* If we now need a cursor in the new place or in the new form, do it so. */
3505 && (f
->phys_cursor_x
< 0
3506 || (f
->display
.x
->current_cursor
!= bar_cursor
)))
3508 f
->phys_cursor_glyph
3509 = ((current_glyphs
->enable
[curs_y
]
3510 && curs_x
< current_glyphs
->used
[curs_y
])
3511 ? current_glyphs
->glyphs
[curs_y
][curs_x
]
3513 XFillRectangle (x_current_display
, FRAME_X_WINDOW (f
),
3514 f
->display
.x
->cursor_gc
,
3515 CHAR_TO_PIXEL_COL (f
, curs_x
),
3516 CHAR_TO_PIXEL_ROW (f
, curs_y
),
3517 1, FONT_HEIGHT (f
->display
.x
->font
));
3519 f
->phys_cursor_x
= curs_x
;
3520 f
->phys_cursor_y
= curs_y
;
3522 f
->display
.x
->current_cursor
= bar_cursor
;
3525 if (updating_frame
!= f
)
3530 /* Turn the displayed cursor of frame F on or off according to ON.
3531 If ON is nonzero, where to put the cursor is specified
3532 by F->cursor_x and F->cursor_y. */
3535 x_display_box_cursor (f
, on
)
3539 struct frame_glyphs
*current_glyphs
= FRAME_CURRENT_GLYPHS (f
);
3541 /* This is pointless on invisible frames, and dangerous on garbaged
3542 frames; in the latter case, the frame may be in the midst of
3543 changing its size, and curs_x and curs_y may be off the frame. */
3544 if (! FRAME_VISIBLE_P (f
) || FRAME_GARBAGED_P (f
))
3547 /* If cursor is off and we want it off, return quickly. */
3548 if (!on
&& f
->phys_cursor_x
< 0)
3551 /* If we're not updating, then we want to use the current frame's
3552 cursor position, not our local idea of where the cursor ought to be. */
3553 if (f
!= updating_frame
)
3555 curs_x
= FRAME_CURSOR_X (f
);
3556 curs_y
= FRAME_CURSOR_Y (f
);
3559 /* If cursor is currently being shown and we don't want it to be
3560 or it is in the wrong place,
3561 or we want a hollow box and it's not so, (pout!)
3563 if (f
->phys_cursor_x
>= 0
3565 || f
->phys_cursor_x
!= curs_x
3566 || f
->phys_cursor_y
!= curs_y
3567 || (f
->display
.x
->current_cursor
!= hollow_box_cursor
3568 && (f
!= x_highlight_frame
))))
3570 /* Erase the cursor by redrawing the character underneath it. */
3571 x_draw_single_glyph (f
, f
->phys_cursor_y
, f
->phys_cursor_x
,
3572 f
->phys_cursor_glyph
,
3573 current_glyphs
->highlight
[f
->phys_cursor_y
]);
3574 f
->phys_cursor_x
= -1;
3577 /* If we want to show a cursor,
3578 or we want a box cursor and it's not so,
3579 write it in the right place. */
3581 && (f
->phys_cursor_x
< 0
3582 || (f
->display
.x
->current_cursor
!= filled_box_cursor
3583 && f
== x_highlight_frame
)))
3585 f
->phys_cursor_glyph
3586 = ((current_glyphs
->enable
[curs_y
]
3587 && curs_x
< current_glyphs
->used
[curs_y
])
3588 ? current_glyphs
->glyphs
[curs_y
][curs_x
]
3590 if (f
!= x_highlight_frame
)
3593 f
->display
.x
->current_cursor
= hollow_box_cursor
;
3597 x_draw_single_glyph (f
, curs_y
, curs_x
,
3598 f
->phys_cursor_glyph
, 2);
3599 f
->display
.x
->current_cursor
= filled_box_cursor
;
3602 f
->phys_cursor_x
= curs_x
;
3603 f
->phys_cursor_y
= curs_y
;
3606 if (updating_frame
!= f
)
3610 x_display_cursor (f
, on
)
3614 if (FRAME_DESIRED_CURSOR (f
) == filled_box_cursor
)
3615 x_display_box_cursor (f
, on
);
3616 else if (FRAME_DESIRED_CURSOR (f
) == bar_cursor
)
3617 x_display_bar_cursor (f
, on
);
3619 /* Those are the only two we have implemented! */
3625 /* Refresh bitmap kitchen sink icon for frame F
3626 when we get an expose event for it. */
3632 /* Normally, the window manager handles this function. */
3633 #else /* ! defined (HAVE_X11) */
3636 if (f
->display
.x
->icon_bitmap_flag
)
3637 XBitmapBitsPut (f
->display
.x
->icon_desc
, 0, 0, sink_width
, sink_height
,
3638 sink_bits
, BlackPixel
, WHITE_PIX_DEFAULT
,
3639 icon_bitmap
, GXcopy
, AllPlanes
);
3642 extern struct frame
*selected_frame
;
3643 struct Lisp_String
*str
;
3644 unsigned char *string
;
3647 = XSTRING (XBUFFER (XWINDOW (f
->selected_window
)->buffer
)->name
)->data
;
3649 if (f
->display
.x
->icon_label
!= string
)
3651 f
->display
.x
->icon_label
= string
;
3652 XChangeWindow (f
->display
.x
->icon_desc
,
3653 XQueryWidth (string
, icon_font_info
->id
) + 10,
3654 icon_font_info
->height
+ 10);
3657 XText (f
->display
.x
->icon_desc
, 5, 5, string
,
3658 str
->size
, icon_font_info
->id
,
3659 BLACK_PIX_DEFAULT
, WHITE_PIX_DEFAULT
);
3662 #endif /* ! defined (HAVE_X11) */
3665 /* Make the x-window of frame F use the gnu icon bitmap. */
3674 if (FRAME_X_WINDOW (f
) == 0)
3680 XCreateBitmapFromData (x_current_display
, FRAME_X_WINDOW (f
),
3681 gnu_bits
, gnu_width
, gnu_height
);
3682 x_wm_set_icon_pixmap (f
, icon_bitmap
);
3683 f
->display
.x
->icon_bitmap_flag
= 1;
3684 #else /* ! defined (HAVE_X11) */
3685 if (f
->display
.x
->icon_desc
)
3687 XClearIconWindow (FRAME_X_WINDOW (f
));
3688 XDestroyWindow (f
->display
.x
->icon_desc
);
3691 icon_window
= XCreateWindow (f
->display
.x
->parent_desc
,
3692 0, 0, sink_width
, sink_height
,
3693 2, WhitePixmap
, (Pixmap
) NULL
);
3695 if (icon_window
== 0)
3698 XSetIconWindow (FRAME_X_WINDOW (f
), icon_window
);
3699 XSelectInput (icon_window
, ExposeWindow
| UnmapWindow
);
3701 f
->display
.x
->icon_desc
= icon_window
;
3702 f
->display
.x
->icon_bitmap_flag
= 1;
3704 if (icon_bitmap
== 0)
3706 = XStoreBitmap (sink_mask_width
, sink_mask_height
, sink_mask_bits
);
3707 #endif /* ! defined (HAVE_X11) */
3713 /* Make the x-window of frame F use a rectangle with text. */
3716 x_text_icon (f
, icon_name
)
3724 char *X_DefaultValue
;
3728 #define WhitePixel 1
3729 #endif /* WhitePixel */
3732 #define BlackPixel 0
3733 #endif /* BlackPixel */
3734 #endif /* HAVE_X11 */
3736 if (FRAME_X_WINDOW (f
) == 0)
3741 f
->display
.x
->icon_label
= icon_name
;
3743 if (! f
->display
.x
->icon_label
)
3744 f
->display
.x
->icon_label
= " *emacs* ";
3747 XSetIconName (x_current_display
, FRAME_X_WINDOW (f
),
3748 (char *) f
->display
.x
->icon_label
);
3751 f
->display
.x
->icon_bitmap_flag
= 0;
3752 x_wm_set_icon_pixmap (f
, 0);
3753 #else /* ! defined (HAVE_X11) */
3754 if (icon_font_info
== 0)
3756 = XGetFont (XGetDefault (XDISPLAY
3757 (char *) XSTRING (Vinvocation_name
)->data
,
3760 if (f
->display
.x
->icon_desc
)
3762 XClearIconWindow (XDISPLAY
FRAME_X_WINDOW (f
));
3763 XDestroyWindow (XDISPLAY f
->display
.x
->icon_desc
);
3767 f
->display
.x
->icon_label
= (unsigned char *) icon_name
;
3769 if (! f
->display
.x
->icon_label
)
3770 f
->display
.x
->icon_label
= XSTRING (f
->name
)->data
;
3772 width
= XStringWidth (f
->display
.x
->icon_label
, icon_font_info
, 0, 0);
3773 icon_window
= XCreateWindow (f
->display
.x
->parent_desc
,
3774 f
->display
.x
->left_pos
,
3775 f
->display
.x
->top_pos
,
3776 width
+ 10, icon_font_info
->height
+ 10,
3777 2, BlackPixmap
, WhitePixmap
);
3779 if (icon_window
== 0)
3782 XSetIconWindow (FRAME_X_WINDOW (f
), icon_window
);
3783 XSelectInput (icon_window
, ExposeWindow
| ExposeRegion
| UnmapWindow
| ButtonPressed
);
3785 f
->display
.x
->icon_desc
= icon_window
;
3786 f
->display
.x
->icon_bitmap_flag
= 0;
3787 f
->display
.x
->icon_label
= 0;
3788 #endif /* ! defined (HAVE_X11) */
3793 /* Handling X errors. */
3795 /* Shut down Emacs in an orderly fashion, because of a SIGPIPE on the
3796 X server's connection, or an error reported via the X protocol. */
3799 x_connection_closed ()
3804 shut_down_emacs (0, 1, Qnil
);
3809 /* An X error handler which prints an error message and then kills
3810 Emacs. This is what's normally installed as Xlib's handler for
3813 x_error_quitter (display
, error
)
3819 /* Note that there is no real way portable across R3/R4 to get the
3820 original error handler. */
3822 XGetErrorText (display
, error
->error_code
, buf
, sizeof (buf
));
3823 fprintf (stderr
, "X protocol error: %s on protocol request %d\n",
3824 buf
, error
->request_code
);
3827 /* While we're testing Emacs 19, we'll just dump core whenever we
3828 get an X error, so we can figure out why it happened. */
3832 x_connection_closed ();
3835 /* A handler for X IO errors which prints an error message and then
3836 kills Emacs. This is what is always installed as Xlib's handler
3839 x_io_error_quitter (display
)
3842 fprintf (stderr
, "Connection to X server %s lost.\n",
3843 XDisplayName (DisplayString (display
)));
3846 /* While we're testing Emacs 19, we'll just dump core whenever we
3847 get an X error, so we can figure out why it happened. */
3851 x_connection_closed ();
3854 /* A buffer for storing X error messages. */
3855 static char *x_caught_error_message
;
3856 #define X_CAUGHT_ERROR_MESSAGE_SIZE 200
3858 /* An X error handler which stores the error message in
3859 x_caught_error_message. This is what's installed when
3860 x_catch_errors is in effect. */
3862 x_error_catcher (display
, error
)
3866 XGetErrorText (display
, error
->error_code
,
3867 x_caught_error_message
, X_CAUGHT_ERROR_MESSAGE_SIZE
);
3871 /* Begin trapping X errors.
3873 After calling this function, X protocol errors no longer cause
3874 Emacs to exit; instead, they are recorded in x_cfc_error_message.
3876 Calling x_check_errors signals an Emacs error if an X error has
3877 occurred since the last call to x_catch_errors or x_check_errors.
3879 Calling x_uncatch_errors resumes the normal error handling. */
3881 void x_catch_errors(), x_check_errors (), x_uncatch_errors ();
3886 /* Make sure any errors from previous requests have been dealt with. */
3887 XSync (x_current_display
, False
);
3889 /* Set up the error buffer. */
3890 x_caught_error_message
3891 = (char*) xmalloc (X_CAUGHT_ERROR_MESSAGE_SIZE
);
3892 x_caught_error_message
[0] = '\0';
3894 /* Install our little error handler. */
3895 XHandleError (x_error_catcher
);
3898 /* If any X protocol errors have arrived since the last call to
3899 x_catch_errors or x_check_errors, signal an Emacs error using
3900 sprintf (a buffer, FORMAT, the x error message text) as the text. */
3902 x_check_errors (format
)
3905 /* Make sure to catch any errors incurred so far. */
3906 XSync (x_current_display
, False
);
3908 if (x_caught_error_message
[0])
3910 char buf
[X_CAUGHT_ERROR_MESSAGE_SIZE
+ 56];
3912 sprintf (buf
, format
, x_caught_error_message
);
3913 x_uncatch_errors ();
3921 xfree (x_caught_error_message
);
3922 x_caught_error_message
= 0;
3923 XHandleError (x_error_quitter
);
3927 static unsigned int x_wire_count
;
3930 fprintf (stderr
, "Lib call: %d\n", ++x_wire_count
);
3935 /* Changing the font of the frame. */
3937 /* Set the font of the x-window specified by frame F
3938 to the font named NEWNAME. This is safe to use
3939 even before F has an actual x-window. */
3943 /* A table of all the fonts we have already loaded. */
3944 static XFontStruct
**x_font_table
;
3946 /* The current capacity of x_font_table. */
3947 static int x_font_table_size
;
3949 /* The number of fonts actually stored in x_font_table.
3950 x_font_table[n] is used and valid iff 0 <= n < n_fonts.
3951 0 <= n_fonts <= x_font_table_size. */
3955 x_new_font (f
, fontname
)
3957 register char *fontname
;
3960 int n_matching_fonts
;
3961 XFontStruct
*font_info
;
3964 /* Get a list of all the fonts that match this name. Once we
3965 have a list of matching fonts, we compare them against the fonts
3966 we already have by comparing font ids. */
3967 font_names
= (char **) XListFontsWithInfo (x_current_display
, fontname
,
3968 1024, &n_matching_fonts
,
3970 /* Apparently it doesn't set n_matching_fonts to zero when it can't
3971 find any matches; font_names == 0 is the only clue. */
3973 n_matching_fonts
= 0;
3975 /* Don't just give up if n_matching_fonts is 0.
3976 Apparently there's a bug on Suns: XListFontsWithInfo can
3977 fail to find a font, but XLoadQueryFont may still find it. */
3979 /* See if we've already loaded a matching font. */
3980 already_loaded
= -1;
3981 if (n_matching_fonts
!= 0)
3985 for (i
= 0; i
< n_fonts
; i
++)
3986 for (j
= 0; j
< n_matching_fonts
; j
++)
3987 if (x_font_table
[i
]->fid
== font_info
[j
].fid
)
3990 fontname
= font_names
[j
];
3996 /* If we have, just return it from the table. */
3997 if (already_loaded
> 0)
3998 f
->display
.x
->font
= x_font_table
[already_loaded
];
4000 /* Otherwise, load the font and add it to the table. */
4006 /* Try to find a character-cell font in the list. */
4008 /* A laudable goal, but this isn't how to do it. */
4009 for (i
= 0; i
< n_matching_fonts
; i
++)
4010 if (! font_info
[i
].per_char
)
4016 /* See comment above. */
4017 if (n_matching_fonts
!= 0)
4018 fontname
= font_names
[i
];
4020 font
= (XFontStruct
*) XLoadQueryFont (x_current_display
, fontname
);
4023 /* Free the information from XListFontsWithInfo. */
4024 if (n_matching_fonts
)
4025 XFreeFontInfo (font_names
, font_info
, n_matching_fonts
);
4029 /* Do we need to create the table? */
4030 if (x_font_table_size
== 0)
4032 x_font_table_size
= 16;
4034 = (XFontStruct
**) xmalloc (x_font_table_size
4035 * sizeof (x_font_table
[0]));
4037 /* Do we need to grow the table? */
4038 else if (n_fonts
>= x_font_table_size
)
4040 x_font_table_size
*= 2;
4042 = (XFontStruct
**) xrealloc (x_font_table
,
4044 * sizeof (x_font_table
[0])));
4047 f
->display
.x
->font
= x_font_table
[n_fonts
++] = font
;
4050 /* Now make the frame display the given font. */
4051 if (FRAME_X_WINDOW (f
) != 0)
4053 XSetFont (x_current_display
, f
->display
.x
->normal_gc
,
4054 f
->display
.x
->font
->fid
);
4055 XSetFont (x_current_display
, f
->display
.x
->reverse_gc
,
4056 f
->display
.x
->font
->fid
);
4057 XSetFont (x_current_display
, f
->display
.x
->cursor_gc
,
4058 f
->display
.x
->font
->fid
);
4060 x_set_window_size (f
, f
->width
, f
->height
);
4064 Lisp_Object lispy_name
= build_string (fontname
);
4067 /* Free the information from XListFontsWithInfo. The data
4068 we actually retain comes from XLoadQueryFont. */
4069 XFreeFontInfo (font_names
, font_info
, n_matching_fonts
);
4074 #else /* ! defined (HAVE_X11) */
4075 x_new_font (f
, newname
)
4077 register char *newname
;
4082 temp
= XGetFont (newname
);
4083 if (temp
== (FONT_TYPE
*) 0)
4086 if (f
->display
.x
->font
)
4087 XLoseFont (f
->display
.x
->font
);
4089 f
->display
.x
->font
= temp
;
4091 if (FRAME_X_WINDOW (f
) != 0)
4092 x_set_window_size (f
, f
->width
, f
->height
);
4096 #endif /* ! defined (HAVE_X11) */
4098 /* X Window sizes and positions. */
4100 x_calc_absolute_position (f
)
4104 if (f
->display
.x
->left_pos
< 0)
4105 f
->display
.x
->left_pos
= (x_screen_width
4106 - 2 * f
->display
.x
->border_width
4108 + f
->display
.x
->left_pos
);
4110 if (f
->display
.x
->top_pos
< 0)
4111 f
->display
.x
->top_pos
= (x_screen_height
4112 - 2 * f
->display
.x
->border_width
4114 + f
->display
.x
->top_pos
);
4115 #else /* ! defined (HAVE_X11) */
4116 WINDOWINFO_TYPE parentinfo
;
4118 XGetWindowInfo (FRAME_X_WINDOW (f
), &parentinfo
);
4120 if (f
->display
.x
->left_pos
< 0)
4121 f
->display
.x
->left_pos
= parentinfo
.width
+ (f
->display
.x
->left_pos
+ 1)
4122 - PIXEL_WIDTH (f
) - 2 * f
->display
.x
->internal_border_width
;
4124 if (f
->display
.x
->top_pos
< 0)
4125 f
->display
.x
->top_pos
= parentinfo
.height
+ (f
->display
.x
->top_pos
+ 1)
4126 - PIXEL_HEIGHT (f
) - 2 * f
->display
.x
->internal_border_width
;
4127 #endif /* ! defined (HAVE_X11) */
4130 x_set_offset (f
, xoff
, yoff
)
4132 register int xoff
, yoff
;
4134 f
->display
.x
->top_pos
= yoff
;
4135 f
->display
.x
->left_pos
= xoff
;
4136 x_calc_absolute_position (f
);
4139 XMoveWindow (XDISPLAY
FRAME_X_WINDOW (f
),
4140 f
->display
.x
->left_pos
, f
->display
.x
->top_pos
);
4142 x_wm_set_size_hint (f
, 0);
4143 #endif /* ! defined (HAVE_X11) */
4147 /* Call this to change the size of frame F's x-window. */
4149 x_set_window_size (f
, cols
, rows
)
4153 int pixelwidth
, pixelheight
;
4158 check_frame_size (f
, &rows
, &cols
);
4159 f
->display
.x
->vertical_scroll_bar_extra
=
4160 (FRAME_HAS_VERTICAL_SCROLL_BARS (f
)
4161 ? VERTICAL_SCROLL_BAR_PIXEL_WIDTH (f
)
4163 pixelwidth
= CHAR_TO_PIXEL_WIDTH (f
, cols
);
4164 pixelheight
= CHAR_TO_PIXEL_HEIGHT (f
, rows
);
4167 x_wm_set_size_hint (f
, 0);
4168 #endif /* ! defined (HAVE_X11) */
4169 XChangeWindowSize (FRAME_X_WINDOW (f
), pixelwidth
, pixelheight
);
4171 /* Now, strictly speaking, we can't be sure that this is accurate,
4172 but the window manager will get around to dealing with the size
4173 change request eventually, and we'll hear how it went when the
4174 ConfigureNotify event gets here.
4176 We could just not bother storing any of this information here,
4177 and let the ConfigureNotify event set everything up, but that
4178 might be kind of confusing to the lisp code, since size changes
4179 wouldn't be reported in the frame parameters until some random
4180 point in the future when the ConfigureNotify event arrives. */
4181 change_frame_size (f
, rows
, cols
, 0, 0);
4182 PIXEL_WIDTH (f
) = pixelwidth
;
4183 PIXEL_HEIGHT (f
) = pixelheight
;
4185 /* We've set {FRAME,PIXEL}_{WIDTH,HEIGHT} to the values we hope to
4186 receive in the ConfigureNotify event; if we get what we asked
4187 for, then the event won't cause the screen to become garbaged, so
4188 we have to make sure to do it here. */
4189 SET_FRAME_GARBAGED (f
);
4196 x_set_resize_hint (f
)
4199 XSetResizeHint (FRAME_X_WINDOW (f
),
4200 2 * f
->display
.x
->internal_border_width
,
4201 2 * f
->display
.x
->internal_border_width
,
4202 FONT_WIDTH (f
->display
.x
->font
),
4203 FONT_HEIGHT (f
->display
.x
->font
));
4205 #endif /* HAVE_X11 */
4207 /* Mouse warping, focus shifting, raising and lowering. */
4209 x_set_mouse_position (f
, x
, y
)
4217 pix_x
= CHAR_TO_PIXEL_COL (f
, x
) + FONT_WIDTH (f
->display
.x
->font
) / 2;
4218 pix_y
= CHAR_TO_PIXEL_ROW (f
, y
) + FONT_HEIGHT (f
->display
.x
->font
) / 2;
4220 if (pix_x
< 0) pix_x
= 0;
4221 if (pix_x
> PIXEL_WIDTH (f
)) pix_x
= PIXEL_WIDTH (f
);
4223 if (pix_y
< 0) pix_y
= 0;
4224 if (pix_y
> PIXEL_HEIGHT (f
)) pix_y
= PIXEL_HEIGHT (f
);
4228 XWarpMousePointer (FRAME_X_WINDOW (f
), pix_x
, pix_y
);
4233 x_focus_on_frame (f
)
4238 /* I don't think that the ICCCM allows programs to do things like this
4239 without the interaction of the window manager. Whatever you end up
4240 doing with this code, do it to x_unfocus_frame too. */
4241 XSetInputFocus (x_current_display
, FRAME_X_WINDOW (f
),
4242 RevertToPointerRoot
, CurrentTime
);
4250 /* Look at the remarks in x_focus_on_frame. */
4251 if (x_focus_frame
== f
)
4252 XSetInputFocus (x_current_display
, PointerRoot
,
4253 RevertToPointerRoot
, CurrentTime
);
4257 #endif /* ! defined (HAVE_X11) */
4259 /* Raise frame F. */
4264 if (f
->async_visible
)
4267 XRaiseWindow (XDISPLAY
FRAME_X_WINDOW (f
));
4273 /* Lower frame F. */
4278 if (f
->async_visible
)
4281 XLowerWindow (XDISPLAY
FRAME_X_WINDOW (f
));
4288 XTframe_raise_lower (f
, raise
)
4299 /* Change from withdrawn state to mapped state. */
4301 x_make_frame_visible (f
)
4308 if (! FRAME_VISIBLE_P (f
))
4311 if (! EQ (Vx_no_window_manager
, Qt
))
4312 x_wm_set_window_state (f
, NormalState
);
4314 XMapWindow (XDISPLAY
FRAME_X_WINDOW (f
));
4315 if (FRAME_HAS_VERTICAL_SCROLL_BARS (f
))
4316 XMapSubwindows (x_current_display
, FRAME_X_WINDOW (f
));
4317 #else /* ! defined (HAVE_X11) */
4318 XMapWindow (XDISPLAY
FRAME_X_WINDOW (f
));
4319 if (f
->display
.x
->icon_desc
!= 0)
4320 XUnmapWindow (f
->display
.x
->icon_desc
);
4322 /* Handled by the MapNotify event for X11 */
4323 f
->async_visible
= 1;
4324 f
->async_iconified
= 0;
4326 /* NOTE: this may cause problems for the first frame. */
4328 #endif /* ! defined (HAVE_X11) */
4336 /* Change from mapped state to withdrawn state. */
4338 x_make_frame_invisible (f
)
4343 /* Don't keep the highlight on an invisible frame. */
4344 if (x_highlight_frame
== f
)
4345 x_highlight_frame
= 0;
4347 if (! f
->async_visible
&& ! f
->async_iconified
)
4354 if (! XWithdrawWindow (x_current_display
, FRAME_X_WINDOW (f
),
4355 DefaultScreen (x_current_display
)))
4357 UNBLOCK_INPUT_RESIGNAL
;
4358 error ("can't notify window manager of window withdrawal");
4361 #else /* ! defined (HAVE_X11R4) */
4364 /* Tell the window manager what we're going to do. */
4365 if (! EQ (Vx_no_window_manager
, Qt
))
4369 unmap
.xunmap
.type
= UnmapNotify
;
4370 unmap
.xunmap
.window
= FRAME_X_WINDOW (f
);
4371 unmap
.xunmap
.event
= DefaultRootWindow (x_current_display
);
4372 unmap
.xunmap
.from_configure
= False
;
4373 if (! XSendEvent (x_current_display
,
4374 DefaultRootWindow (x_current_display
),
4376 SubstructureRedirectMask
|SubstructureNotifyMask
,
4379 UNBLOCK_INPUT_RESIGNAL
;
4380 error ("can't notify window manager of withdrawal");
4384 /* Unmap the window ourselves. Cheeky! */
4385 XUnmapWindow (x_current_display
, FRAME_X_WINDOW (f
));
4387 #else /* ! defined (HAVE_X11) */
4389 XUnmapWindow (FRAME_X_WINDOW (f
));
4390 f
->async_visible
= 0; /* Handled by the UnMap event for X11 */
4391 if (f
->display
.x
->icon_desc
!= 0)
4392 XUnmapWindow (f
->display
.x
->icon_desc
);
4394 #endif /* ! defined (HAVE_X11) */
4395 #endif /* ! defined (HAVE_X11R4) */
4401 /* Change window state from mapped to iconified. */
4408 /* Don't keep the highlight on an invisible frame. */
4409 if (x_highlight_frame
== f
)
4410 x_highlight_frame
= 0;
4412 if (f
->async_iconified
)
4418 /* Since we don't know which revision of X we're running, we'll use both
4419 the X11R3 and X11R4 techniques. I don't know if this is a good idea. */
4421 /* X11R4: send a ClientMessage to the window manager using the
4422 WM_CHANGE_STATE type. */
4426 message
.xclient
.window
= FRAME_X_WINDOW (f
);
4427 message
.xclient
.type
= ClientMessage
;
4428 message
.xclient
.message_type
= Xatom_wm_change_state
;
4429 message
.xclient
.format
= 32;
4430 message
.xclient
.data
.l
[0] = IconicState
;
4432 if (! XSendEvent (x_current_display
,
4433 DefaultRootWindow (x_current_display
),
4435 SubstructureRedirectMask
| SubstructureNotifyMask
,
4438 UNBLOCK_INPUT_RESIGNAL
;
4439 error ("Can't notify window manager of iconification.");
4443 /* X11R3: set the initial_state field of the window manager hints to
4445 x_wm_set_window_state (f
, IconicState
);
4447 f
->async_iconified
= 1;
4448 #else /* ! defined (HAVE_X11) */
4449 XUnmapWindow (XDISPLAY
FRAME_X_WINDOW (f
));
4451 f
->async_visible
= 0; /* Handled in the UnMap event for X11. */
4452 if (f
->display
.x
->icon_desc
!= 0)
4454 XMapWindow (XDISPLAY f
->display
.x
->icon_desc
);
4457 #endif /* ! defined (HAVE_X11) */
4463 /* Destroy the X window of frame F. */
4465 x_destroy_window (f
)
4470 if (f
->display
.x
->icon_desc
!= 0)
4471 XDestroyWindow (XDISPLAY f
->display
.x
->icon_desc
);
4472 XDestroyWindow (XDISPLAY f
->display
.x
->window_desc
);
4473 free_frame_faces (f
);
4476 xfree (f
->display
.x
);
4478 if (f
== x_focus_frame
)
4480 if (f
== x_highlight_frame
)
4481 x_highlight_frame
= 0;
4486 /* Manage event queues for X10. */
4490 /* Manage event queues.
4492 This code is only used by the X10 support.
4494 We cannot leave events in the X queue and get them when we are ready
4495 because X does not provide a subroutine to get only a certain kind
4496 of event but not block if there are no queued events of that kind.
4498 Therefore, we must examine events as they come in and copy events
4499 of certain kinds into our private queues.
4501 All ExposeRegion events are put in x_expose_queue.
4502 All ButtonPressed and ButtonReleased events are put in x_mouse_queue. */
4505 /* Write the event *P_XREP into the event queue *QUEUE.
4506 If the queue is full, do nothing, but return nonzero. */
4509 enqueue_event (p_xrep
, queue
)
4510 register XEvent
*p_xrep
;
4511 register struct event_queue
*queue
;
4513 int newindex
= queue
->windex
+ 1;
4514 if (newindex
== EVENT_BUFFER_SIZE
)
4516 if (newindex
== queue
->rindex
)
4518 queue
->xrep
[queue
->windex
] = *p_xrep
;
4519 queue
->windex
= newindex
;
4523 /* Fetch the next event from queue *QUEUE and store it in *P_XREP.
4524 If *QUEUE is empty, do nothing and return 0. */
4527 dequeue_event (p_xrep
, queue
)
4528 register XEvent
*p_xrep
;
4529 register struct event_queue
*queue
;
4531 if (queue
->windex
== queue
->rindex
)
4533 *p_xrep
= queue
->xrep
[queue
->rindex
++];
4534 if (queue
->rindex
== EVENT_BUFFER_SIZE
)
4539 /* Return the number of events buffered in *QUEUE. */
4542 queue_event_count (queue
)
4543 register struct event_queue
*queue
;
4545 int tem
= queue
->windex
- queue
->rindex
;
4548 return EVENT_BUFFER_SIZE
+ tem
;
4551 /* Return nonzero if mouse input is pending. */
4554 mouse_event_pending_p ()
4556 return queue_event_count (&x_mouse_queue
);
4558 #endif /* HAVE_X11 */
4560 /* Setting window manager hints. */
4564 x_wm_set_size_hint (f
, prompting
)
4568 XSizeHints size_hints
;
4569 Window window
= FRAME_X_WINDOW (f
);
4571 size_hints
.flags
= PResizeInc
| PMinSize
/* | PMaxSize */;
4573 flexlines
= f
->height
;
4575 size_hints
.x
= f
->display
.x
->left_pos
;
4576 size_hints
.y
= f
->display
.x
->top_pos
;
4577 size_hints
.height
= PIXEL_HEIGHT (f
);
4578 size_hints
.width
= PIXEL_WIDTH (f
);
4579 size_hints
.width_inc
= FONT_WIDTH (f
->display
.x
->font
);
4580 size_hints
.height_inc
= FONT_HEIGHT (f
->display
.x
->font
);
4582 size_hints
.max_width
= x_screen_width
- CHAR_TO_PIXEL_WIDTH (f
, 0);
4583 size_hints
.max_height
= x_screen_height
- CHAR_TO_PIXEL_HEIGHT (f
, 0);
4586 int base_width
, base_height
;
4588 base_width
= CHAR_TO_PIXEL_WIDTH (f
, 0);
4589 base_height
= CHAR_TO_PIXEL_HEIGHT (f
, 0);
4592 int min_rows
= 0, min_cols
= 0;
4593 check_frame_size (f
, &min_rows
, &min_cols
);
4595 /* The window manager uses the base width hints to calculate the
4596 current number of rows and columns in the frame while
4597 resizing; min_width and min_height aren't useful for this
4598 purpose, since they might not give the dimensions for a
4599 zero-row, zero-column frame.
4601 We use the base_width and base_height members if we have
4602 them; otherwise, we set the min_width and min_height members
4603 to the size for a zero x zero frame. */
4606 size_hints
.flags
|= PBaseSize
;
4607 size_hints
.base_width
= base_width
;
4608 size_hints
.base_height
= base_height
;
4609 size_hints
.min_width
= base_width
+ min_cols
* size_hints
.width_inc
;
4610 size_hints
.min_height
= base_height
+ min_rows
* size_hints
.height_inc
;
4612 size_hints
.min_width
= base_width
;
4613 size_hints
.min_height
= base_height
;
4620 size_hints
.flags
|= prompting
;
4623 XSizeHints hints
; /* Sometimes I hate X Windows... */
4625 if (XGetNormalHints (x_current_display
, window
, &hints
) == 0)
4627 if (hints
.flags
& PSize
)
4628 size_hints
.flags
|= PSize
;
4629 if (hints
.flags
& PPosition
)
4630 size_hints
.flags
|= PPosition
;
4631 if (hints
.flags
& USPosition
)
4632 size_hints
.flags
|= USPosition
;
4633 if (hints
.flags
& USSize
)
4634 size_hints
.flags
|= USSize
;
4638 XSetWMNormalHints (x_current_display
, window
, &size_hints
);
4640 XSetNormalHints (x_current_display
, window
, &size_hints
);
4644 /* Used for IconicState or NormalState */
4645 x_wm_set_window_state (f
, state
)
4649 Window window
= FRAME_X_WINDOW (f
);
4651 f
->display
.x
->wm_hints
.flags
|= StateHint
;
4652 f
->display
.x
->wm_hints
.initial_state
= state
;
4654 XSetWMHints (x_current_display
, window
, &f
->display
.x
->wm_hints
);
4657 x_wm_set_icon_pixmap (f
, icon_pixmap
)
4661 Window window
= FRAME_X_WINDOW (f
);
4665 f
->display
.x
->wm_hints
.icon_pixmap
= icon_pixmap
;
4666 f
->display
.x
->wm_hints
.flags
|= IconPixmapHint
;
4669 f
->display
.x
->wm_hints
.flags
&= ~IconPixmapHint
;
4671 XSetWMHints (x_current_display
, window
, &f
->display
.x
->wm_hints
);
4674 x_wm_set_icon_position (f
, icon_x
, icon_y
)
4678 Window window
= FRAME_X_WINDOW (f
);
4680 f
->display
.x
->wm_hints
.flags
|= IconPositionHint
;
4681 f
->display
.x
->wm_hints
.icon_x
= icon_x
;
4682 f
->display
.x
->wm_hints
.icon_y
= icon_y
;
4684 XSetWMHints (x_current_display
, window
, &f
->display
.x
->wm_hints
);
4688 /* Initialization. */
4691 x_term_init (display_name
)
4697 extern int old_fcntl_owner
;
4698 #endif /* ! defined (F_SETOWN) */
4700 x_focus_frame
= x_highlight_frame
= 0;
4702 x_current_display
= XOpenDisplay (display_name
);
4703 if (x_current_display
== 0)
4704 fatal ("X server %s not responding; check the DISPLAY environment variable or use \"-d\"\n",
4709 int hostname_size
= 256;
4711 hostname
= (char *) xmalloc (hostname_size
);
4714 XSetAfterFunction (x_current_display
, x_trace_wire
);
4717 /* Try to get the host name; if the buffer is too short, try
4718 again. Apparently, the only indication gethostname gives of
4719 whether the buffer was large enough is the presence or absence
4720 of a '\0' in the string. Eech. */
4723 gethostname (hostname
, hostname_size
- 1);
4724 hostname
[hostname_size
- 1] = '\0';
4726 /* Was the buffer large enough for gethostname to store the '\0'? */
4727 if (strlen (hostname
) < hostname_size
- 1)
4730 hostname_size
<<= 1;
4731 hostname
= (char *) xrealloc (hostname
, hostname_size
);
4733 x_id_name
= (char *) xmalloc (XSTRING (Vinvocation_name
)->size
4736 sprintf (x_id_name
, "%s@%s", XSTRING (Vinvocation_name
)->data
, hostname
);
4739 /* Figure out which modifier bits mean what. */
4740 x_find_modifier_meanings ();
4742 /* Get the scroll bar cursor. */
4743 x_vertical_scroll_bar_cursor
4744 = XCreateFontCursor (x_current_display
, XC_sb_v_double_arrow
);
4747 /* Watch for PropertyNotify events on the root window; we use them
4748 to figure out when to invalidate our cache of the cut buffers. */
4749 x_watch_cut_buffer_cache ();
4752 if (ConnectionNumber (x_current_display
) != 0)
4754 dup2 (ConnectionNumber (x_current_display
), 0);
4756 #ifndef SYSV_STREAMS
4757 /* Streams somehow keeps track of which descriptor number
4758 is being used to talk to X. So it is not safe to substitute
4759 descriptor 0. But it is safe to make descriptor 0 a copy of it. */
4760 close (ConnectionNumber (x_current_display
));
4761 ConnectionNumber (x_current_display
) = 0; /* Looks a little strange?
4762 * check the def of the macro;
4763 * it is a genuine lvalue */
4764 #endif /* SYSV_STREAMS */
4767 #endif /* ! defined (HAVE_X11) */
4770 old_fcntl_owner
= fcntl (0, F_GETOWN
, 0);
4771 #ifdef F_SETOWN_SOCK_NEG
4772 fcntl (0, F_SETOWN
, -getpid ()); /* stdin is a socket here */
4773 #else /* ! defined (F_SETOWN_SOCK_NEG) */
4774 fcntl (0, F_SETOWN
, getpid ());
4775 #endif /* ! defined (F_SETOWN_SOCK_NEG) */
4776 #endif /* ! defined (F_SETOWN) */
4780 #endif /* ! defined (SIGIO) */
4782 /* Must use interrupt input because we cannot otherwise
4783 arrange for C-g to be noticed immediately.
4784 We cannot connect it to SIGINT. */
4785 Fset_input_mode (Qt
, Qnil
, Qt
, Qnil
);
4787 expose_all_windows
= 0;
4789 clear_frame_hook
= XTclear_frame
;
4790 clear_end_of_line_hook
= XTclear_end_of_line
;
4791 ins_del_lines_hook
= XTins_del_lines
;
4792 change_line_highlight_hook
= XTchange_line_highlight
;
4793 insert_glyphs_hook
= XTinsert_glyphs
;
4794 write_glyphs_hook
= XTwrite_glyphs
;
4795 delete_glyphs_hook
= XTdelete_glyphs
;
4796 ring_bell_hook
= XTring_bell
;
4797 reset_terminal_modes_hook
= XTreset_terminal_modes
;
4798 set_terminal_modes_hook
= XTset_terminal_modes
;
4799 update_begin_hook
= XTupdate_begin
;
4800 update_end_hook
= XTupdate_end
;
4801 set_terminal_window_hook
= XTset_terminal_window
;
4802 read_socket_hook
= XTread_socket
;
4803 cursor_to_hook
= XTcursor_to
;
4804 reassert_line_highlight_hook
= XTreassert_line_highlight
;
4805 mouse_position_hook
= XTmouse_position
;
4806 frame_rehighlight_hook
= XTframe_rehighlight
;
4807 frame_raise_lower_hook
= XTframe_raise_lower
;
4808 set_vertical_scroll_bar_hook
= XTset_vertical_scroll_bar
;
4809 condemn_scroll_bars_hook
= XTcondemn_scroll_bars
;
4810 redeem_scroll_bar_hook
= XTredeem_scroll_bar
;
4811 judge_scroll_bars_hook
= XTjudge_scroll_bars
;
4813 scroll_region_ok
= 1; /* we'll scroll partial frames */
4814 char_ins_del_ok
= 0; /* just as fast to write the line */
4815 line_ins_del_ok
= 1; /* we'll just blt 'em */
4816 fast_clear_end_of_line
= 1; /* X does this well */
4817 memory_below_frame
= 0; /* we don't remember what scrolls
4821 /* Note that there is no real way portable across R3/R4 to get the
4822 original error handler. */
4823 XHandleError (x_error_quitter
);
4824 XHandleIOError (x_io_error_quitter
);
4826 /* Disable Window Change signals; they are handled by X events. */
4828 signal (SIGWINCH
, SIG_DFL
);
4829 #endif /* ! defined (SIGWINCH) */
4831 signal (SIGPIPE
, x_connection_closed
);
4837 staticpro (&last_mouse_scroll_bar
);
4839 #endif /* ! defined (HAVE_X11) */
4840 #endif /* ! defined (HAVE_X_WINDOWS) */