/* Define frame-object for GNU Emacs.
- Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1994, 1999, 2000, 2001 Free Software Foundation, Inc.
This file is part of GNU Emacs.
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
+/* Don't multiply include: dispextern.h includes macterm.h which
+ includes frame.h some emacs source includes both dispextern.h and
+ frame.h */
+
+#ifndef EMACS_FRAME_H
+#define EMACS_FRAME_H
+
\f
/* Miscellanea. */
-/* Nonzero means don't assume anything about current
- contents of actual terminal frame */
+/* Nonzero means don't assume anything about current contents of
+ actual terminal frame */
+
extern int frame_garbaged;
/* Nonzero means FRAME_MESSAGE_BUF (selected_frame) is being used by
print. */
+
extern int message_buf_print;
\f
/* The structure representing a frame. */
enum output_method
-{ output_termcap, output_x_window, output_msdos_raw, output_w32 };
+{
+ output_termcap,
+ output_x_window,
+ output_msdos_raw,
+ output_w32,
+ output_mac
+};
enum vertical_scroll_bar_type
-{ vertical_scroll_bar_none, vertical_scroll_bar_left, vertical_scroll_bar_right };
+{
+ vertical_scroll_bar_none,
+ vertical_scroll_bar_left,
+ vertical_scroll_bar_right
+};
+
+#if !defined(MSDOS) && !defined(WINDOWSNT) && !defined(macintosh)
+
+#if !defined(HAVE_X_WINDOWS)
+
+#define PIX_TYPE int
+
+/* A (mostly empty) x_output structure definition for building Emacs
+ on Unix and GNU/Linux without X support. */
+struct x_output
+{
+ PIX_TYPE background_pixel;
+ PIX_TYPE foreground_pixel;
+};
+
+#define FRAME_INTERNAL_BORDER_WIDTH(f) 0
+
+#endif /* ! HAVE_X_WINDOWS */
+
+
+#define FRAME_FOREGROUND_PIXEL(f) ((f)->output_data.x->foreground_pixel)
+#define FRAME_BACKGROUND_PIXEL(f) ((f)->output_data.x->background_pixel)
+
+/* A structure describing a termcap frame display. */
+extern struct x_output tty_display;
+
+#endif /* ! MSDOS && ! WINDOWSNT && ! macintosh */
struct frame
{
/* List of buffers viewed in this frame, for other-buffer. */
Lisp_Object buffer_list;
+ /* A dummy window used to display menu bars under X when no X
+ toolkit support is available. */
+ Lisp_Object menu_bar_window;
+
+ /* A window used to display the tool-bar of a frame. */
+ Lisp_Object tool_bar_window;
+
+ /* Desired and current tool-bar items. */
+ Lisp_Object tool_bar_items;
+
+ /* Desired and current contents displayed in tool_bar_window. */
+ Lisp_Object desired_tool_bar_string, current_tool_bar_string;
+
/* beyond here, there should be no more Lisp_Object components. */
+ /* Cache of realized faces. */
+ struct face_cache *face_cache;
- /* A buffer to hold the frame's name. We can't use the Lisp string's
- pointer (`name', above) because it might get relocated. */
+ /* A buffer to hold the frame's name. We can't use the Lisp
+ string's pointer (`name', above) because it might get relocated. */
char *namebuf;
- /* glyphs as they appear on the frame */
- struct frame_glyphs *current_glyphs;
+ /* Glyph pool and matrix. */
+ struct glyph_pool *current_pool;
+ struct glyph_pool *desired_pool;
+ struct glyph_matrix *desired_matrix;
+ struct glyph_matrix *current_matrix;
+
+ /* 1 means that glyphs on this frame have been initialized so it can
+ be used for output. */
+ unsigned glyphs_initialized_p : 1;
- /* glyphs we'd like to appear on the frame */
- struct frame_glyphs *desired_glyphs;
+ /* Margin at the top of the frame. Used to display the tool-bar. */
+ int tool_bar_lines;
+
+ int n_tool_bar_items;
+
+ /* A buffer for decode_mode_line. */
+ char *decode_mode_spec_buffer;
/* See do_line_insertion_deletion_costs for info on these arrays. */
/* Cost of inserting 1 line on this frame */
/* Cost of deleting n lines on this frame */
int *delete_n_lines_cost;
- /* glyphs for the mode line */
- struct frame_glyphs *temp_glyphs;
-
- /* Intended cursor position of this frame.
- Measured in characters, counting from upper left corner
- within the frame. */
- int cursor_x;
- int cursor_y;
-
- /* Actual cursor position of this frame, and the character under it.
- (Not used for terminal frames.) */
- int phys_cursor_x;
- int phys_cursor_y;
- /* This is handy for undrawing the cursor, because current_glyphs is
- not always accurate when in do_scrolling. */
- GLYPH phys_cursor_glyph;
- /* Nonzero means the cursor is displayed. */
- int phys_cursor_on;
-
/* Size of this frame, in units of characters. */
EMACS_INT height;
EMACS_INT width;
EMACS_INT window_width;
+ EMACS_INT window_height;
/* New height and width for pending size change. 0 if no change pending. */
int new_height, new_width;
it is defined in xterm.h.
struct w32_output is used for W32 window frames;
it is defined in w32term.h. */
- union output_data { struct x_output *x; struct w32_output *w32; int nothing; } output_data;
+ union output_data
+ {
+ struct x_output *x;
+ struct w32_output *w32;
+ struct mac_output *mac;
+ EMACS_INT nothing;
+ }
+ output_data;
#ifdef MULTI_KBOARD
/* A pointer to the kboard structure associated with this frame.
/* Number of lines of menu bar. */
int menu_bar_lines;
-#if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI)
+#if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (macintosh)
/* Nonzero means using a menu bar that comes from the X toolkit. */
int external_menu_bar;
#endif
/* Asynchronous input handlers change these, and
FRAME_SAMPLE_VISIBILITY copies them into visible and iconified.
See FRAME_SAMPLE_VISIBILITY, below. */
-#ifdef __STDC__
- volatile
-#endif
- char async_visible, async_iconified;
+ volatile char async_visible, async_iconified;
/* Nonzero if this frame should be redrawn. */
-#ifdef __STDC__
- volatile
-#endif
- char garbaged;
+ volatile char garbaged;
/* True if frame actually has a minibuffer window on it.
0 if using a minibuffer window that isn't on this frame. */
/* The baud rate that was used to calculate costs for this frame. */
int cost_calculation_baud_rate;
- /* A pointer to the data structure containing all information of
- fontsets associated with this frame. See the comments in
- fontset.h for more detail. */
- struct fontset_data *fontset_data;
-
/* Nonzero if the mouse has moved on this display
since the last time we checked. */
char mouse_moved;
+
+ /* Exponent for gamma correction of colors. 1/(VIEWING_GAMMA *
+ SCREEN_GAMMA) where viewing_gamma is 0.4545 and SCREEN_GAMMA is a
+ frame parameter. 0 means don't do gamma correction. */
+ double gamma;
+
+ /* Additional space to put between text lines on this frame. */
+ int extra_line_spacing;
+
+ /* Set to non-zero in change_frame_size when size of frame changed
+ Clear the frame in clear_garbaged_frames if set. */
+ unsigned resized_p : 1;
};
#ifdef MULTI_KBOARD
typedef struct frame *FRAME_PTR;
-#define XFRAME(p) ((struct frame *) XPNTR (p))
+#define XFRAME(p) (eassert (GC_FRAMEP(p)),(struct frame *) XPNTR (p))
#define XSETFRAME(a, b) (XSETPSEUDOVECTOR (a, b, PVEC_FRAME))
+/* Given a window, return its frame as a Lisp_Object. */
#define WINDOW_FRAME(w) (w)->frame
+/* Test a frame for particular kinds of display methods. */
+#define FRAME_TERMCAP_P(f) ((f)->output_method == output_termcap)
#define FRAME_X_P(f) ((f)->output_method == output_x_window)
#define FRAME_W32_P(f) ((f)->output_method == output_w32)
#define FRAME_MSDOS_P(f) ((f)->output_method == output_msdos_raw)
+#define FRAME_MAC_P(f) ((f)->output_method == output_mac)
/* FRAME_WINDOW_P tests whether the frame is a window, and is
defined to be the predicate for the window system being used. */
+
#ifdef HAVE_X_WINDOWS
#define FRAME_WINDOW_P(f) FRAME_X_P (f)
#endif
#ifdef HAVE_NTGUI
#define FRAME_WINDOW_P(f) FRAME_W32_P (f)
#endif
+#ifdef macintosh
+#define FRAME_WINDOW_P(f) FRAME_MAC_P (f)
+#endif
#ifndef FRAME_WINDOW_P
#define FRAME_WINDOW_P(f) (0)
#endif
+/* Nonzero if frame F is still alive (not deleted). */
#define FRAME_LIVE_P(f) ((f)->output_data.nothing != 0)
-#define FRAME_TERMCAP_P(f) ((f)->output_method == output_termcap)
+
+/* Nonzero if frame F is a minibuffer-only frame. */
#define FRAME_MINIBUF_ONLY_P(f) \
EQ (FRAME_ROOT_WINDOW (f), FRAME_MINIBUF_WINDOW (f))
+
+/* Nonzero if frame F contains a minibuffer window.
+ (If this is 0, F must use some other minibuffer window.) */
#define FRAME_HAS_MINIBUF_P(f) ((f)->has_minibuffer)
-#define FRAME_CURRENT_GLYPHS(f) (f)->current_glyphs
-#define FRAME_DESIRED_GLYPHS(f) (f)->desired_glyphs
-#define FRAME_TEMP_GLYPHS(f) (f)->temp_glyphs
#define FRAME_HEIGHT(f) (f)->height
+
+/* Width of frame F, measured in character columns,
+ not including scroll bars if any. */
#define FRAME_WIDTH(f) (f)->width
-#define FRAME_NEW_HEIGHT(f) (f)->new_height
-#define FRAME_NEW_WIDTH(f) (f)->new_width
+
+/* Number of lines of frame F used for menu bar.
+ This is relevant on terminal frames and on
+ X Windows when not using the X toolkit.
+ These lines are counted in FRAME_HEIGHT. */
#define FRAME_MENU_BAR_LINES(f) (f)->menu_bar_lines
-#if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI)
+
+/* Number of lines of frame F used for the tool-bar. */
+
+#define FRAME_TOOL_BAR_LINES(f) (f)->tool_bar_lines
+
+/* Lines above the top-most window in frame F. */
+
+#define FRAME_TOP_MARGIN(F) \
+ (FRAME_MENU_BAR_LINES (F) + FRAME_TOOL_BAR_LINES (F))
+
+/* Nonzero if this frame should display a menu bar
+ in a way that does not use any text lines. */
+#if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) || defined (macintosh)
#define FRAME_EXTERNAL_MENU_BAR(f) (f)->external_menu_bar
#else
#define FRAME_EXTERNAL_MENU_BAR(f) 0
#endif
-#define FRAME_CURSOR_X(f) (f)->cursor_x
-#define FRAME_CURSOR_Y(f) (f)->cursor_y
#define FRAME_VISIBLE_P(f) ((f)->visible != 0)
+
+/* Nonzero if frame F is currently visible but hidden. */
#define FRAME_OBSCURED_P(f) ((f)->visible > 1)
+
+/* Nonzero if frame F is currently iconified. */
+#define FRAME_ICONIFIED_P(f) (f)->iconified
+
#define FRAME_SET_VISIBLE(f,p) \
((f)->async_visible = (p), FRAME_SAMPLE_VISIBILITY (f))
#define SET_FRAME_GARBAGED(f) (frame_garbaged = 1, f->garbaged = 1)
#define FRAME_GARBAGED_P(f) (f)->garbaged
+
+/* Nonzero means do not allow splitting this frame's window. */
#define FRAME_NO_SPLIT_P(f) (f)->no_split
+
+/* Not really implemented. */
#define FRAME_WANTS_MODELINE_P(f) (f)->wants_modeline
-#define FRAME_ICONIFIED_P(f) (f)->iconified
+
+/* Nonzero if a size change has been requested for frame F
+ but not yet really put into effect. This can be true temporarily
+ when an X event comes in at a bad time. */
#define FRAME_WINDOW_SIZES_CHANGED(f) (f)->window_sizes_changed
+/* When a size change is pending, these are the requested new sizes. */
+#define FRAME_NEW_HEIGHT(f) (f)->new_height
+#define FRAME_NEW_WIDTH(f) (f)->new_width
+
+/* The minibuffer window of frame F, if it has one; otherwise nil. */
#define FRAME_MINIBUF_WINDOW(f) (f)->minibuffer_window
+
+/* The root window of the window tree of frame F. */
#define FRAME_ROOT_WINDOW(f) (f)->root_window
+
+/* The currently selected window of the window tree of frame F. */
#define FRAME_SELECTED_WINDOW(f) (f)->selected_window
-#define SET_GLYPHS_FRAME(glyphs,frame) ((glyphs)->frame = (frame))
+
#define FRAME_INSERT_COST(f) (f)->insert_line_cost
#define FRAME_DELETE_COST(f) (f)->delete_line_cost
#define FRAME_INSERTN_COST(f) (f)->insert_n_lines_cost
#define FRAME_MESSAGE_BUF(f) (f)->message_buf
#define FRAME_SCROLL_BOTTOM_VPOS(f) (f)->scroll_bottom_vpos
#define FRAME_FOCUS_FRAME(f) (f)->focus_frame
+
+/* Nonzero if frame F supports scroll bars.
+ If this is zero, then it is impossible to enable scroll bars
+ on frame F. */
#define FRAME_CAN_HAVE_SCROLL_BARS(f) ((f)->can_have_scroll_bars)
+
+/* This frame slot says whether scroll bars are currently enabled for frame F,
+ and which side they are on. */
#define FRAME_VERTICAL_SCROLL_BAR_TYPE(f) ((f)->vertical_scroll_bar_type)
#define FRAME_HAS_VERTICAL_SCROLL_BARS(f) \
((f)->vertical_scroll_bar_type != vertical_scroll_bar_none)
((f)->vertical_scroll_bar_type == vertical_scroll_bar_left)
#define FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT(f) \
((f)->vertical_scroll_bar_type == vertical_scroll_bar_right)
+
+/* Width that a scroll bar in frame F should have, if there is one.
+ Measured in pixels.
+ If scroll bars are turned off, this is still nonzero. */
#define FRAME_SCROLL_BAR_PIXEL_WIDTH(f) ((f)->scroll_bar_pixel_width)
+
+/* Width that a scroll bar in frame F should have, if there is one.
+ Measured in columns (characters).
+ If scroll bars are turned off, this is still nonzero. */
#define FRAME_SCROLL_BAR_COLS(f) ((f)->scroll_bar_cols)
-#define FRAME_LEFT_SCROLL_BAR_WIDTH(f) \
- (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f) \
- ? FRAME_SCROLL_BAR_COLS (f) \
+
+/* Width of a scroll bar in frame F, measured in columns (characters),
+ but only if scroll bars are on the left. If scroll bars are on
+ the right in this frame, or there are no scroll bars, value is 0. */
+
+#define FRAME_LEFT_SCROLL_BAR_WIDTH(f) \
+ (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f) \
+ ? FRAME_SCROLL_BAR_COLS (f) \
+ : 0)
+
+/* Width of a scroll bar in frame F, measured in columns (characters),
+ but only if scroll bars are on the right. If scroll bars are on
+ the left in this frame, or there are no scroll bars, value is 0. */
+
+#define FRAME_RIGHT_SCROLL_BAR_WIDTH(f) \
+ (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (f) \
+ ? FRAME_SCROLL_BAR_COLS (f) \
: 0)
+
+/* Width of a scroll bar in frame F, measured in columns (characters). */
#define FRAME_SCROLL_BAR_WIDTH(f) \
(FRAME_HAS_VERTICAL_SCROLL_BARS (f) \
? FRAME_SCROLL_BAR_COLS (f) \
: 0)
-#define FRAME_WINDOW_WIDTH_ARG(f, width) \
- ((width) + FRAME_SCROLL_BAR_WIDTH (f))
+
+/* Total width of frame F, in columns (characters),
+ including the width used by scroll bars if any. */
#define FRAME_WINDOW_WIDTH(f) ((f)->window_width)
-#define SET_FRAME_WIDTH(f,val) ((f)->width = (val), (f)->window_width = FRAME_WINDOW_WIDTH_ARG (f, (f)->width))
+
+/* Set the width of frame F to VAL.
+ VAL is the width of a full-frame window,
+ not including scroll bars. */
+#define SET_FRAME_WIDTH(f, val) \
+ ((f)->width = (val), \
+ (f)->window_width = FRAME_WINDOW_WIDTH_ARG (f, (f)->width))
+
+/* Given a value WIDTH for frame F's nominal width,
+ return the value that FRAME_WINDOW_WIDTH should have. */
+#define FRAME_WINDOW_WIDTH_ARG(f, width) \
+ ((width) \
+ + FRAME_SCROLL_BAR_WIDTH (f) \
+ + FRAME_FRINGE_COLS (f))
+
+/* Maximum + 1 legitimate value for FRAME_CURSOR_X. */
+#define FRAME_CURSOR_X_LIMIT(f) \
+ (FRAME_WIDTH (f) + FRAME_LEFT_SCROLL_BAR_WIDTH (f))
+
+/* Nonzero if frame F has scroll bars. */
#define FRAME_SCROLL_BARS(f) ((f)->scroll_bars)
+
#define FRAME_CONDEMNED_SCROLL_BARS(f) ((f)->condemned_scroll_bars)
#define FRAME_MENU_BAR_ITEMS(f) ((f)->menu_bar_items)
#define FRAME_COST_BAUD_RATE(f) ((f)->cost_calculation_baud_rate)
-#define FRAME_FONTSET_DATA(f) ((f)->fontset_data)
+
+/* Return a pointer to the face cache of frame F. */
+
+#define FRAME_FACE_CACHE(F) (F)->face_cache
/* Return the size of message_buf of the frame F. We multiply the
width of the frame by 4 because multi-byte form may require at most
4-byte for a character. */
+
#define FRAME_MESSAGE_BUF_SIZE(f) (((int) (f)->width) * 4)
/* Emacs's redisplay code could become confused if a frame's
Also, if a frame used to be invisible, but has just become visible,
it must be marked as garbaged, since redisplay hasn't been keeping
up its contents. */
+
#define FRAME_SAMPLE_VISIBILITY(f) \
(((f)->async_visible && (f)->visible != (f)->async_visible) ? \
SET_FRAME_GARBAGED (f) : 0, \
(f)->visible = (f)->async_visible, \
(f)->iconified = (f)->async_iconified)
-#define CHECK_FRAME(x, i) \
- { \
- if (! FRAMEP (x)) \
- x = wrong_type_argument (Qframep, (x)); \
- }
+#define CHECK_FRAME(x) \
+ do { \
+ if (! FRAMEP (x)) \
+ x = wrong_type_argument (Qframep, (x)); \
+ } while (0)
-#define CHECK_LIVE_FRAME(x, i) \
- { \
- if (! FRAMEP (x) \
- || ! FRAME_LIVE_P (XFRAME (x))) \
- x = wrong_type_argument (Qframe_live_p, (x)); \
- }
+#define CHECK_LIVE_FRAME(x) \
+ do { \
+ if (! FRAMEP (x) \
+ || ! FRAME_LIVE_P (XFRAME (x))) \
+ x = wrong_type_argument (Qframe_live_p, (x)); \
+ } while (0)
/* FOR_EACH_FRAME (LIST_VAR, FRAME_VAR) followed by a statement is a
`for' loop which iterates over the elements of Vframe_list. The
This macro is a holdover from a time when multiple frames weren't always
supported. An alternate definition of the macro would expand to
something which executes the statement once. */
+
#define FOR_EACH_FRAME(list_var, frame_var) \
for ((list_var) = Vframe_list; \
(CONSP (list_var) \
- && (frame_var = XCONS (list_var)->car, 1)); \
- list_var = XCONS (list_var)->cdr)
+ && (frame_var = XCAR (list_var), 1)); \
+ list_var = XCDR (list_var))
extern Lisp_Object Qframep, Qframe_live_p, Qicon;
+extern Lisp_Object Qleft_fringe, Qright_fringe;
-extern struct frame *selected_frame;
extern struct frame *last_nonminibuf_frame;
-extern struct frame *make_terminal_frame ();
-extern struct frame *make_frame ();
-extern struct frame *make_minibuffer_frame ();
-extern struct frame *make_frame_without_minibuffer ();
+extern struct frame *make_terminal_frame P_ ((void));
+extern struct frame *make_frame P_ ((int));
+#ifdef HAVE_WINDOW_SYSTEM
+extern struct frame *make_minibuffer_frame P_ ((void));
+extern struct frame *make_frame_without_minibuffer P_ ((Lisp_Object,
+ struct kboard *,
+ Lisp_Object));
+#endif /* HAVE_WINDOW_SYSTEM */
+extern int other_visible_frames P_ ((struct frame *));
extern Lisp_Object Vframe_list;
extern Lisp_Object Vdefault_frame_alist;
use for text. If the window touches the right edge of the frame,
we have extra space allocated for it. Otherwise, the scroll bar
takes over the window's rightmost columns. */
+
#define WINDOW_VERTICAL_SCROLL_BAR_COLUMN(w) \
(FRAME_HAS_VERTICAL_SCROLL_BARS_ON_RIGHT (XFRAME (WINDOW_FRAME (w))) ? \
(((XINT ((w)->left) + XINT ((w)->width)) \
/* Return the height in lines of the vertical scroll bar in w. If the
window has a mode line, don't make the scroll bar extend that far. */
+
#define WINDOW_VERTICAL_SCROLL_BAR_HEIGHT(w) (window_internal_height (w))
+
+/* The currently selected frame. */
+
+extern Lisp_Object selected_frame;
+
+/* Value is a pointer to the selected frame. If the selected frame
+ isn't live, abort. */
+
+#define SELECTED_FRAME() \
+ ((FRAMEP (selected_frame) \
+ && FRAME_LIVE_P (XFRAME (selected_frame))) \
+ ? XFRAME (selected_frame) \
+ : (abort (), (struct frame *) 0))
+
+\f
+/***********************************************************************
+ Display-related Macros
+ ***********************************************************************/
+
+/* Canonical y-unit on frame F. This value currently equals the line
+ height of the frame. Terminal specific header files are expected
+ to define the macro FRAME_LINE_HEIGHT. */
+
+#define CANON_Y_UNIT(F) \
+ (FRAME_WINDOW_P (F) ? FRAME_LINE_HEIGHT (F) : 1)
+
+/* Canonical x-unit on frame F. This is currently equal to the width
+ of the default font of F. Terminal specific headers are expected
+ to define the macro FRAME_DEFAULT_FONT_WIDTH. */
+
+#define CANON_X_UNIT(F) \
+ (FRAME_WINDOW_P (F) ? FRAME_DEFAULT_FONT_WIDTH (F) : 1)
+
+/* Pixel width of areas used to display truncation marks, continuation
+ marks, overlay arrows. This is 0 for terminal frames. */
+
+#ifdef HAVE_WINDOW_SYSTEM
+
+#define FRAME_FRINGE_COLS(F) \
+ (FRAME_WINDOW_P (F) ? FRAME_X_FRINGE_COLS (F) : 0)
+#define FRAME_FRINGE_WIDTH(F) \
+ (FRAME_WINDOW_P (F) ? FRAME_X_FRINGE_WIDTH (F) : 0)
+#define FRAME_LEFT_FRINGE_WIDTH(F) \
+ (FRAME_WINDOW_P (F) ? FRAME_X_LEFT_FRINGE_WIDTH (F) : 0)
+#define FRAME_RIGHT_FRINGE_WIDTH(F) \
+ (FRAME_WINDOW_P (F) ? FRAME_X_RIGHT_FRINGE_WIDTH (F) : 0)
+
+#else /* not HAVE_WINDOW_SYSTEM */
+
+#define FRAME_FRINGE_WIDTH(F) 0
+#define FRAME_FRINGE_COLS(F) 0
+#define FRAME_LEFT_FRINGE_WIDTH(F) 0
+#define FRAME_RIGHT_FRINGE_WIDTH(F) 0
+
+#endif /* not HAVE_WINDOW_SYSTEM */
+
+
+
+\f
+/***********************************************************************
+ Conversion between canonical units and pixels
+ ***********************************************************************/
+
+/* Canonical x-values are fractions of CANON_X_UNIT, canonical y-unit
+ are fractions of CANON_Y_UNIT of a frame. Both are represented as
+ Lisp numbers, i.e. integers or floats. */
+
+/* Convert canonical value X to pixels. F is the frame whose
+ canonical char width is to be used. X must be a Lisp integer or
+ float. Value is a C integer. */
+
+#define PIXEL_X_FROM_CANON_X(F, X) \
+ (INTEGERP (X) \
+ ? XINT (X) * CANON_X_UNIT (F) \
+ : (int) (XFLOAT_DATA (X) * CANON_X_UNIT (F)))
+
+/* Convert canonical value Y to pixels. F is the frame whose
+ canonical character height is to be used. X must be a Lisp integer
+ or float. Value is a C integer. */
+
+#define PIXEL_Y_FROM_CANON_Y(F, Y) \
+ (INTEGERP (Y) \
+ ? XINT (Y) * CANON_Y_UNIT (F) \
+ : (int) (XFLOAT_DATA (Y) * CANON_Y_UNIT (F)))
+
+/* Convert pixel-value X to canonical units. F is the frame whose
+ canonical character width is to be used. X is a C integer. Result
+ is a Lisp float if X is not a multiple of the canon width,
+ otherwise it's a Lisp integer. */
+
+#define CANON_X_FROM_PIXEL_X(F, X) \
+ ((X) % CANON_X_UNIT (F) != 0 \
+ ? make_float ((double) (X) / CANON_X_UNIT (F)) \
+ : make_number ((X) / CANON_X_UNIT (F)))
+
+/* Convert pixel-value Y to canonical units. F is the frame whose
+ canonical character height is to be used. Y is a C integer.
+ Result is a Lisp float if Y is not a multiple of the canon width,
+ otherwise it's a Lisp integer. */
+
+#define CANON_Y_FROM_PIXEL_Y(F, Y) \
+ ((Y) % CANON_Y_UNIT (F) \
+ ? make_float ((double) (Y) / CANON_Y_UNIT (F)) \
+ : make_number ((Y) / CANON_Y_UNIT (F)))
+
+#endif /* not EMACS_FRAME_H */
HCoop / bpt / emacs.git / blobdiff