1 /* X Communication module for terminals which understand the X protocol.
2 Copyright (C) 1989 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 1, 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.
34 /* On 4.3 this loses if it comes after xterm.h. */
37 /* This may include sys/types.h, and that somehow loses
38 if this is not done before the other system files. */
41 /* Load sys/types.h if not already loaded.
42 In some systems loading it twice is suicidal. */
44 #include <sys/types.h>
48 #include <sys/ioctl.h>
51 #include <sys/termio.h>
55 /* Allow m- file to inhibit use of FIONREAD. */
56 #ifdef BROKEN_FIONREAD
60 /* We are unable to use interrupts if FIONREAD is not available,
61 so flush SIGIO so we won't try. */
76 #include <sys/param.h>
78 #include "dispextern.h"
79 #include "termhooks.h"
92 #define XMapWindow XMapRaised /* Raise them when mapping. */
94 #include <X/Xkeyboard.h>
95 /*#include <X/Xproto.h> */
98 /* For sending Meta-characters. Do we need this? */
101 #define min(a,b) ((a)<(b) ? (a) : (b))
102 #define max(a,b) ((a)>(b) ? (a) : (b))
104 /* Nonzero means we must reprint all windows
105 because 1) we received an ExposeWindow event
106 or 2) we received too many ExposeRegion events to record. */
108 static int expose_all_windows
;
110 /* Nonzero means we must reprint all icon windows. */
112 static int expose_all_icons
;
115 /* ExposeRegion events, when received, are copied into this queue
116 for later processing. */
118 static struct event_queue x_expose_queue
;
120 /* ButtonPressed and ButtonReleased events, when received,
121 are copied into this queue for later processing. */
123 struct event_queue x_mouse_queue
;
126 /* Nonzero after BLOCK_INPUT; prevents input events from being
127 processed until later. */
131 #if defined (SIGIO) && defined (FIONREAD)
132 int BLOCK_INPUT_mask
;
135 /* Nonzero if input events came in while x_input_blocked was nonzero.
136 UNBLOCK_INPUT checks for this. */
140 /* Nonzero if in redisplay (); prevents us from calling it recursively */
144 /* The id of a bitmap used for icon windows.
145 One such map is shared by all Emacs icon windows.
146 This is zero if we have not yet had a need to create the bitmap. */
148 static Bitmap icon_bitmap
;
150 /* Font used for text icons. */
152 static FONT_TYPE
*icon_font_info
;
154 /* Stuff for dealing with the main icon title. */
156 extern Lisp_Object Vcommand_line_args
;
157 char *hostname
, *x_id_name
;
158 Lisp_Object invocation_name
;
160 /* This is the X connection that we are using. */
162 Display
*x_current_display
;
164 /* Screen being updated by update_screen. */
165 /* This is set by XTupdate_begin and looked at by all the
166 XT functions. It is zero while not inside an update.
167 In that case, the XT functions assume that `selected_screen'
168 is the screen to apply to. */
170 static struct screen
*updating_screen
;
172 /* The screen (if any) which has the X window that has keyboard focus.
173 Zero if none. This is examined by Ffocus_screen in screen.c. */
174 struct screen
*x_focus_screen
;
176 /* The screen which currently has the visual highlight, and should get
177 keyboard input (other sorts of input have the screen encoded in the
178 event). It points to the X focus screen's selected window's
179 screen. It differs from x_focus_screen when we're using a global
181 static struct screen
*x_highlight_screen
;
183 /* From .Xdefaults, the value of "emacs.WarpMouse". If non-zero,
184 mouse is moved to inside of screen when screen is de-iconified. */
186 static int warp_mouse_on_deiconify
;
188 /* During an update, maximum vpos for ins/del line operations to affect. */
190 static int flexlines
;
192 /* During an update, nonzero if chars output now should be highlighted. */
194 static int highlight
;
196 /* Nominal cursor position -- where to draw output.
197 During an update, these are different from the cursor-box position. */
203 /* `t' if a mouse button is depressed. */
205 extern Lisp_Object Vmouse_depressed
;
207 /* Tells if a window manager is present or not. */
209 extern Lisp_Object Vx_no_window_manager
;
211 /* Timestamp that we requested selection data was made. */
212 extern Time requestor_time
;
214 /* ID of the window requesting selection data. */
215 extern Window requestor_window
;
217 /* Nonzero enables some debugging for the X interface code. */
220 #else /* X10 stuff */
222 /* Bit patterns for the mouse cursor. */
224 short MouseCursor
[] = {
225 0x0000, 0x0008, 0x0018, 0x0038,
226 0x0078, 0x00f8, 0x01f8, 0x03f8,
227 0x07f8, 0x00f8, 0x00d8, 0x0188,
228 0x0180, 0x0300, 0x0300, 0x0000};
230 short MouseMask
[] = {
231 0x000c, 0x001c, 0x003c, 0x007c,
232 0x00fc, 0x01fc, 0x03fc, 0x07fc,
233 0x0ffc, 0x0ffc, 0x01fc, 0x03dc,
234 0x03cc, 0x0780, 0x0780, 0x0300};
236 static short grey_bits
[] = {
237 0x0005, 0x000a, 0x0005, 0x000a};
239 static Pixmap GreyPixmap
= 0;
240 #endif /* X10 stuff */
242 /* From time to time we get info on an Emacs window, here. */
244 static WINDOWINFO_TYPE windowinfo
;
248 extern Display
*XOpenDisplay ();
249 extern Window
XCreateWindow ();
251 extern Cursor
XCreateCursor ();
252 extern FONT_TYPE
*XOpenFont ();
254 static void flashback ();
257 static void dumpqueue ();
261 static XTcursor_to ();
262 static XTclear_end_of_line ();
264 /* These hooks are called by update_screen at the beginning and end
265 of a screen update. We record in `updating_screen' the identity
266 of the screen being updated, so that the XT... functions do not
267 need to take a screen as argument. Most of the XT... functions
268 should never be called except during an update, the only exceptions
269 being XTcursor_to, XTwrite_char and XTreassert_line_highlight. */
271 extern int mouse_track_top
, mouse_track_left
, mouse_track_width
;
283 flexlines
= s
->height
;
293 static void x_do_pending_expose ();
301 if (updating_screen
== 0
302 || updating_screen
!= s
)
309 adjust_scrollbars (s
);
310 x_do_pending_expose ();
312 x_display_cursor (s
, 1);
319 /* External interface to control of standout mode.
320 Call this when about to modify line at position VPOS
321 and not change whether it is highlighted. */
323 XTreassert_line_highlight (new, vpos
)
329 /* Call this when about to modify line at position VPOS
330 and change whether it is highlighted. */
333 XTchange_line_highlight (new_highlight
, vpos
, first_unused_hpos
)
334 int new_highlight
, vpos
, first_unused_hpos
;
336 highlight
= new_highlight
;
337 XTcursor_to (vpos
, 0);
338 XTclear_end_of_line (updating_screen
->width
);
341 /* This is used when starting Emacs and when restarting after suspend.
342 When starting Emacs, no X window is mapped. And nothing must be done
343 to Emacs's own window if it is suspended (though that rarely happens). */
346 XTset_terminal_modes ()
350 /* This is called when exiting or suspending Emacs.
351 Exiting will make the X-windows go away, and suspending
352 requires no action. */
355 XTreset_terminal_modes ()
357 /* XTclear_screen (); */
360 /* Set the nominal cursor position of the screen:
361 where display update commands will take effect.
362 This does not affect the place where the cursor-box is displayed. */
365 XTcursor_to (row
, col
)
366 register int row
, col
;
374 if (updating_screen
== 0)
377 x_display_cursor (selected_screen
, 1);
383 /* Display a sequence of N glyphs found at GP.
384 WINDOW is the x-window to output to. LEFT and TOP are starting coords.
385 HL is 1 if this text is highlighted, 2 if the cursor is on it.
387 FONT is the default font to use (for glyphs whose font-code is 0). */
390 dumpglyphs (s
, left
, top
, gp
, n
, hl
, font
)
393 register GLYPH
*gp
; /* Points to first GLYPH. */
394 register int n
; /* Number of glyphs to display. */
399 Window window
= s
->display
.x
->window_desc
;
400 GC drawing_gc
= (hl
== 2 ? s
->display
.x
->cursor_gc
401 : (hl
? s
->display
.x
->reverse_gc
402 : s
->display
.x
->normal_gc
));
404 if (sizeof (GLYPH
) == sizeof (XChar2b
))
405 XDrawImageString16 (x_current_display
, window
, drawing_gc
,
406 left
, top
+ FONT_BASE (font
), (XChar2b
*) gp
, n
);
407 else if (sizeof (GLYPH
) == sizeof (unsigned char))
408 XDrawImageString (x_current_display
, window
, drawing_gc
,
409 left
, top
+ FONT_BASE (font
), (char *) gp
, n
);
411 /* What size of glyph ARE you using? And does X have a function to
418 dumpglyphs (s
, left
, top
, gp
, n
, hl
, font
)
421 register GLYPH
*gp
; /* Points to first GLYPH. */
422 register int n
; /* Number of glyphs to display. */
426 char buf
[s
->width
]; /* Holds characters to be displayed. */
427 register char *cp
; /* Steps through buf[]. */
428 register int tlen
= GLYPH_TABLE_LENGTH
;
429 register Lisp_Object
*tbase
= GLYPH_TABLE_BASE
;
430 Window window
= s
->display
.x
->window_desc
;
431 int cursor_pixel
= s
->display
.x
->cursor_pixel
;
432 int fg_pixel
= s
->display
.x
->foreground_pixel
;
433 int bg_pixel
= s
->display
.x
->background_pixel
;
434 int intborder
= s
->display
.x
->internal_border_width
;
438 /* Get the face-code of the next GLYPH. */
442 while (GLYPH_ALIAS_P (tbase
, tlen
, g
))
443 g
= GLYPH_ALIAS (tbase
, g
);
447 /* Find the run of consecutive glyphs with the same face-code.
448 Extract their character codes into BUF. */
453 while (GLYPH_ALIAS_P (tbase
, tlen
, g
))
454 g
= GLYPH_ALIAS (tbase
, g
);
463 /* LEN gets the length of the run. */
466 /* Now output this run of chars, with the font and pixel values
467 determined by the face code CF. */
471 GC GC_cursor
= s
->display
.x
->cursor_gc
;
472 GC GC_reverse
= s
->display
.x
->reverse_gc
;
473 GC GC_normal
= s
->display
.x
->normal_gc
;
475 XDrawImageString (x_current_display
, window
,
478 : (hl
? GC_reverse
: GC_normal
)),
479 left
, top
+ FONT_BASE (font
), buf
, len
);
481 XText (window
, left
, top
,
486 ? (cursor_pixel
== fg_pixel
? bg_pixel
: fg_pixel
)
487 : hl
? bg_pixel
: fg_pixel
),
488 (hl
== 2 ? cursor_pixel
489 : hl
? fg_pixel
: bg_pixel
));
490 #endif /* HAVE_X11 */
495 if (FACE_IS_FONT (cf
))
496 XDrawImageString (x_current_display
, s
->display
.x
->window_desc
,
498 left
, top
+ FONT_BASE (FACE_FONT (cf
)),
500 else if (FACE_IS_IMAGE (cf
))
501 XCopyPlane (x_current_display
, FACE_IMAGE (cf
),
502 s
->display
.x
->window_desc
,
503 s
->display
.x
->normal_gc
,
505 FACE_IMAGE_WIDTH (cf
),
506 FACE_IMAGE_HEIGHT (cf
), left
, top
);
510 register struct face
*fp
= x_face_table
[cf
];
512 XText (window
, left
, top
,
517 ? (cursor_pixel
== fp
->fg
? fp
->bg
: fp
->fg
)
518 : hl
? fp
->bg
: fp
->fg
),
519 (hl
== 2 ? cursor_pixel
520 : hl
? fp
->fg
: fp
->bg
));
521 #endif /* HAVE_X11 */
523 left
+= len
* FONT_WIDTH (font
);
528 /* Output some text at the nominal screen cursor position,
529 advancing the cursor over the text.
530 Output LEN glyphs at START.
532 `highlight', set up by XTreassert_line_highlight or XTchange_line_highlight,
533 controls the pixel values used for foreground and background. */
536 XTwrite_glyphs (start
, len
)
537 register GLYPH
*start
;
540 register int temp_length
;
550 /* If not within an update,
551 output at the screen's visible cursor. */
552 curs_x
= s
->cursor_x
;
553 curs_y
= s
->cursor_y
;
557 (curs_x
* FONT_WIDTH (s
->display
.x
->font
)
558 + s
->display
.x
->internal_border_width
),
559 (curs_y
* FONT_HEIGHT (s
->display
.x
->font
)
560 + s
->display
.x
->internal_border_width
),
561 start
, len
, highlight
, s
->display
.x
->font
);
563 /* If we drew on top of the cursor, note that it is turned off. */
564 if (curs_y
== s
->phys_cursor_y
565 && curs_x
<= s
->phys_cursor_x
566 && curs_x
+ len
> s
->phys_cursor_x
)
567 s
->phys_cursor_x
= -1;
569 if (updating_screen
== 0)
572 x_display_cursor (s
, 1);
581 /* Erase the current text line from the nominal cursor position (inclusive)
582 to column FIRST_UNUSED (exclusive). The idea is that everything
583 from FIRST_UNUSED onward is already erased. */
586 XTclear_end_of_line (first_unused
)
587 register int first_unused
;
589 struct screen
*s
= updating_screen
;
595 if (curs_y
< 0 || curs_y
>= s
->height
)
597 if (first_unused
<= 0)
600 if (first_unused
>= s
->width
)
601 first_unused
= s
->width
;
605 /* Notice if the cursor will be cleared by this operation. */
606 if (curs_y
== s
->phys_cursor_y
607 && curs_x
<= s
->phys_cursor_x
608 && s
->phys_cursor_x
< first_unused
)
609 s
->phys_cursor_x
= -1;
612 XClearArea (x_current_display
, s
->display
.x
->window_desc
,
613 curs_x
* FONT_WIDTH (s
->display
.x
->font
)
614 + s
->display
.x
->internal_border_width
,
615 curs_y
* FONT_HEIGHT (s
->display
.x
->font
)
616 + s
->display
.x
->internal_border_width
,
617 FONT_WIDTH (s
->display
.x
->font
) * (first_unused
- curs_x
),
618 FONT_HEIGHT (s
->display
.x
->font
), False
);
621 XPixSet (s
->display
.x
->window_desc
,
622 curs_x
* FONT_WIDTH (s
->display
.x
->font
) + s
->display
.x
->internal_border_width
,
623 curs_y
* FONT_HEIGHT (s
->display
.x
->font
) + s
->display
.x
->internal_border_width
,
624 FONT_WIDTH (s
->display
.x
->font
) * (first_unused
- curs_x
),
625 FONT_HEIGHT (s
->display
.x
->font
),
626 s
->display
.x
->background_pixel
);
627 #endif /* HAVE_X11 */
636 struct screen
*s
= updating_screen
;
641 s
->phys_cursor_x
= -1; /* Cursor not visible. */
642 curs_x
= 0; /* Nominal cursor position is top left. */
646 XClear (s
->display
.x
->window_desc
);
654 /* Paint horzontal bars down the screen for a visible bell.
655 Note that this may be way too slow on some machines. */
660 register struct screen_glyphs
*active_screen
= SCREEN_CURRENT_GLYPHS (s
);
664 if (updating_screen
!= 0)
670 for (i
= s
->height
* FONT_HEIGHT (s
->display
.x
->font
) - 10;
672 i
-= 100) /* Should be NO LOWER than 75 for speed reasons. */
673 XFillRectangle (x_current_display
, s
->display
.x
->window_desc
,
674 s
->display
.x
->cursor_gc
,
675 0, i
, s
->width
* FONT_WIDTH (s
->display
.x
->font
)
676 + 2 * s
->display
.x
->internal_border_width
, 25);
679 x
= (s
->width
* FONT_WIDTH (s
->display
.x
->font
)) / 4;
680 y
= (s
->height
* FONT_HEIGHT (s
->display
.x
->font
)) / 4;
681 XFillRectangle (x_current_display
, s
->display
.x
->window_desc
,
682 s
->display
.x
->cursor_gc
,
684 dumpglyphs (s
, (x
+ s
->display
.x
->internal_border_width
),
685 (y
+ s
->display
.x
->internal_border_width
),
686 &active_screen
->glyphs
[(s
->height
/ 4) + 1][(s
->width
/ 4)],
687 1, 0, s
->display
.x
->font
);
690 for (i
= s
->height
* FONT_HEIGHT (s
->display
.x
->font
) - 10;
693 XPixFill (s
->display
.x
->window_desc
, 0, i
,
694 s
->width
* FONT_WIDTH (s
->display
.x
->font
)
695 + 2 * s
->display
.x
->internal_border_width
, 10,
696 WHITE_PIX_DEFAULT
, ClipModeClipped
, GXinvert
, AllPlanes
);
703 /* Flip background and forground colors of the screen. */
710 unsigned long pix_temp
;
712 x_display_cursor (s
, 0);
713 XClearWindow (x_current_display
, s
->display
.x
->window_desc
);
714 temp
= s
->display
.x
->normal_gc
;
715 s
->display
.x
->normal_gc
= s
->display
.x
->reverse_gc
;
716 s
->display
.x
->reverse_gc
= temp
;
717 pix_temp
= s
->display
.x
->foreground_pixel
;
718 s
->display
.x
->foreground_pixel
= s
->display
.x
->background_pixel
;
719 s
->display
.x
->background_pixel
= pix_temp
;
721 XSetWindowBackground (x_current_display
, s
->display
.x
->window_desc
,
722 s
->display
.x
->background_pixel
);
723 if (s
->display
.x
->background_pixel
== s
->display
.x
->cursor_pixel
)
725 s
->display
.x
->cursor_pixel
= s
->display
.x
->foreground_pixel
;
726 XSetBackground (x_current_display
, s
->display
.x
->cursor_gc
,
727 s
->display
.x
->cursor_pixel
);
728 XSetForeground (x_current_display
, s
->display
.x
->cursor_gc
,
729 s
->display
.x
->background_pixel
);
735 /* Make audible bell. */
738 #define XRINGBELL XBell(x_current_display, 0)
740 #define XRINGBELL XFeep(0);
747 XTflash (selected_screen
);
750 x_invert_screen (selected_screen
);
751 x_invert_screen (selected_screen
);
762 /* Insert and delete character are not supposed to be used
763 because we are supposed to turn off the feature of using them. */
766 XTinsert_glyphs (start
, len
)
767 register char *start
;
780 /* Specify how many text lines, from the top of the window,
781 should be affected by insert-lines and delete-lines operations.
782 This, and those operations, are used only within an update
783 that is bounded by calls to XTupdate_begin and XTupdate_end. */
786 XTset_terminal_window (n
)
789 if (updating_screen
== 0)
792 if ((n
<= 0) || (n
> updating_screen
->height
))
793 flexlines
= updating_screen
->height
;
798 /* Perform an insert-lines operation, inserting N lines
799 at a vertical position curs_y. */
805 register int topregion
, bottomregion
;
806 register int length
, newtop
, mask
;
807 register struct screen
*s
= updating_screen
;
808 int intborder
= s
->display
.x
->internal_border_width
;
810 if (curs_y
>= flexlines
)
814 bottomregion
= flexlines
- (n
+ 1);
815 newtop
= topregion
+ n
;
816 length
= (bottomregion
- topregion
) + 1;
822 if ((length
> 0) && (newtop
<= flexlines
))
825 XCopyArea (x_current_display
, s
->display
.x
->window_desc
,
826 s
->display
.x
->window_desc
, s
->display
.x
->normal_gc
,
827 intborder
, topregion
* FONT_HEIGHT (s
->display
.x
->font
) + intborder
,
828 s
->width
* FONT_WIDTH (s
->display
.x
->font
),
829 length
* FONT_HEIGHT (s
->display
.x
->font
), intborder
,
830 newtop
* FONT_HEIGHT (s
->display
.x
->font
) + intborder
);
832 XMoveArea (s
->display
.x
->window_desc
,
833 intborder
, topregion
* FONT_HEIGHT (s
->display
.x
->font
) + intborder
,
834 intborder
, newtop
* FONT_HEIGHT (s
->display
.x
->font
) + intborder
,
835 s
->width
* FONT_WIDTH (s
->display
.x
->font
),
836 length
* FONT_HEIGHT (s
->display
.x
->font
));
837 /* Now we must process any ExposeRegion events that occur
838 if the area being copied from is obscured.
839 We can't let it wait because further i/d operations
840 may want to copy this area to another area. */
842 #endif /* HAVE_X11 */
845 newtop
= min (newtop
, (flexlines
- 1));
846 length
= newtop
- topregion
;
850 XClearArea (x_current_display
, s
->display
.x
->window_desc
, intborder
,
851 topregion
* FONT_HEIGHT (s
->display
.x
->font
) + intborder
,
852 s
->width
* FONT_WIDTH (s
->display
.x
->font
),
853 n
* FONT_HEIGHT (s
->display
.x
->font
), False
);
855 XPixSet (s
->display
.x
->window_desc
,
857 topregion
* FONT_HEIGHT (s
->display
.x
->font
) + intborder
,
858 s
->width
* FONT_WIDTH (s
->display
.x
->font
),
859 n
* FONT_HEIGHT (s
->display
.x
->font
),
860 s
->display
.x
->background_pixel
);
861 #endif /* HAVE_X11 */
865 /* Perform a delete-lines operation, deleting N lines
866 at a vertical position curs_y. */
873 register struct screen
*s
= updating_screen
;
874 int intborder
= s
->display
.x
->internal_border_width
;
876 if (curs_y
>= flexlines
)
883 if ((curs_y
+ n
) >= flexlines
)
885 if (flexlines
>= (curs_y
+ 1))
888 XClearArea (x_current_display
, s
->display
.x
->window_desc
, intborder
,
889 curs_y
* FONT_HEIGHT (s
->display
.x
->font
) + intborder
,
890 s
->width
* FONT_WIDTH (s
->display
.x
->font
),
891 (flexlines
- curs_y
) * FONT_HEIGHT (s
->display
.x
->font
), False
);
893 XPixSet (s
->display
.x
->window_desc
,
894 intborder
, curs_y
* FONT_HEIGHT (s
->display
.x
->font
) + intborder
,
895 s
->width
* FONT_WIDTH (s
->display
.x
->font
),
896 (flexlines
- curs_y
) * FONT_HEIGHT (s
->display
.x
->font
),
897 s
->display
.x
->background_pixel
);
898 #endif /* HAVE_X11 */
904 XCopyArea (x_current_display
, s
->display
.x
->window_desc
,
905 s
->display
.x
->window_desc
, s
->display
.x
->normal_gc
,
907 (curs_y
+ n
) * FONT_HEIGHT (s
->display
.x
->font
) + intborder
,
908 s
->width
* FONT_WIDTH (s
->display
.x
->font
),
909 (flexlines
- (curs_y
+ n
)) * FONT_HEIGHT (s
->display
.x
->font
),
910 intborder
, curs_y
* FONT_HEIGHT (s
->display
.x
->font
) + intborder
);
911 XClearArea (x_current_display
, s
->display
.x
->window_desc
,
913 (flexlines
- n
) * FONT_HEIGHT (s
->display
.x
->font
) + intborder
,
914 s
->width
* FONT_WIDTH (s
->display
.x
->font
),
915 n
* FONT_HEIGHT (s
->display
.x
->font
), False
);
917 XMoveArea (s
->display
.x
->window_desc
,
919 (curs_y
+ n
) * FONT_HEIGHT (s
->display
.x
->font
) + intborder
,
920 intborder
, curs_y
* FONT_HEIGHT (s
->display
.x
->font
) + intborder
,
921 s
->width
* FONT_WIDTH (s
->display
.x
->font
),
922 (flexlines
- (curs_y
+ n
)) * FONT_HEIGHT (s
->display
.x
->font
));
923 /* Now we must process any ExposeRegion events that occur
924 if the area being copied from is obscured.
925 We can't let it wait because further i/d operations
926 may want to copy this area to another area. */
928 XPixSet (s
->display
.x
->window_desc
, intborder
,
929 (flexlines
- n
) * FONT_HEIGHT (s
->display
.x
->font
) + intborder
,
930 s
->width
* FONT_WIDTH (s
->display
.x
->font
),
931 n
* FONT_HEIGHT (s
->display
.x
->font
), s
->display
.x
->background_pixel
);
932 #endif /* HAVE_X11 */
936 /* Perform an insert-lines or delete-lines operation,
937 inserting N lines or deleting -N lines at vertical position VPOS. */
939 XTins_del_lines (vpos
, n
)
942 if (updating_screen
== 0)
945 /* Hide the cursor. */
946 x_display_cursor (updating_screen
, 0);
948 XTcursor_to (vpos
, 0);
959 static void clear_cursor ();
961 /* Output into a rectangle of an X-window (for screen S)
962 the characters in s->phys_lines that overlap that rectangle.
963 TOP and LEFT are the position of the upper left corner of the rectangle.
964 ROWS and COLS are the size of the rectangle. */
967 dumprectangle (s
, left
, top
, cols
, rows
)
969 register int left
, top
, cols
, rows
;
971 register struct screen_glyphs
*active_screen
= SCREEN_CURRENT_GLYPHS (s
);
972 int cursor_cleared
= 0;
976 if (SCREEN_GARBAGED_P (s
))
979 top
-= s
->display
.x
->internal_border_width
;
980 left
-= s
->display
.x
->internal_border_width
;
982 /* Express rectangle as four edges, instead of position-and-size. */
986 #ifndef HAVE_X11 /* Window manger does this for X11. */
987 /* If the rectangle includes any of the internal border area,
988 redisplay the border emphasis. */
989 if (top
< 0 || left
< 0
990 || bottom
> s
->height
* FONT_HEIGHT (s
->display
.x
->font
)
991 || right
> s
->width
* FONT_WIDTH (s
->display
.x
->font
))
993 #endif /* HAVE_X11 */
995 /* Convert rectangle edges in pixels to edges in chars.
996 Round down for left and top, up for right and bottom. */
997 top
/= FONT_HEIGHT (s
->display
.x
->font
);
998 left
/= FONT_WIDTH (s
->display
.x
->font
);
999 bottom
+= (FONT_HEIGHT (s
->display
.x
->font
) - 1);
1000 right
+= (FONT_WIDTH (s
->display
.x
->font
) - 1);
1001 bottom
/= FONT_HEIGHT (s
->display
.x
->font
);
1002 right
/= FONT_WIDTH (s
->display
.x
->font
);
1004 /* Clip the rectangle to what can be visible. */
1009 if (right
> s
->width
)
1011 if (bottom
> s
->height
)
1014 /* Get size in chars of the rectangle. */
1015 cols
= right
- left
;
1016 rows
= bottom
- top
;
1018 /* If rectangle has zero area, return. */
1019 if (rows
<= 0) return;
1020 if (cols
<= 0) return;
1022 /* Turn off the cursor if it is in the rectangle.
1023 We will turn it back on afterward. */
1024 if ((s
->phys_cursor_x
>= left
) && (s
->phys_cursor_x
< right
)
1025 && (s
->phys_cursor_y
>= top
) && (s
->phys_cursor_y
< bottom
))
1031 /* Display the text in the rectangle, one text line at a time. */
1033 for (y
= top
; y
< bottom
; y
++)
1035 GLYPH
*line
= &active_screen
->glyphs
[y
][left
];
1037 if (! active_screen
->enable
[y
] || left
> active_screen
->used
[y
])
1041 (left
* FONT_WIDTH (s
->display
.x
->font
)
1042 + s
->display
.x
->internal_border_width
),
1043 (y
* FONT_HEIGHT (s
->display
.x
->font
)
1044 + s
->display
.x
->internal_border_width
),
1045 line
, min (cols
, active_screen
->used
[y
] - left
),
1046 active_screen
->highlight
[y
], s
->display
.x
->font
);
1049 /* Turn the cursor on if we turned it off. */
1052 x_display_cursor (s
, 1);
1056 /* Process all queued ExposeRegion events. */
1062 XExposeRegionEvent r
;
1064 while (dequeue_event (&r
, &x_expose_queue
))
1066 struct screen
*s
= x_window_to_screen (r
.window
);
1067 if (s
->display
.x
->icon_desc
== r
.window
)
1070 dumprectangle (s
, r
.x
, r
.y
, r
.width
, r
.height
);
1076 /* Process all expose events that are pending.
1077 Redraws the cursor if necessary on any screen that
1078 is not in the process of being updated with update_screen. */
1081 x_do_pending_expose ()
1085 Lisp_Object tail
, screen
;
1087 if (expose_all_windows
)
1089 expose_all_windows
= 0;
1090 for (tail
= Vscreen_list
; CONSP (tail
); tail
= XCONS (tail
)->cdr
)
1092 register int temp_width
, temp_height
;
1095 screen
= XCONS (tail
)->car
;
1096 if (XTYPE (screen
) != Lisp_Screen
)
1098 s
= XSCREEN (screen
);
1099 if (! SCREEN_IS_X (s
))
1103 if (!s
->display
.x
->needs_exposure
)
1106 intborder
= s
->display
.x
->internal_border_width
;
1109 XGetWindowInfo (s
->display
.x
->window_desc
, &windowinfo
);
1110 temp_width
= ((windowinfo
.width
- 2 * intborder
1111 - s
->display
.x
->v_scrollbar_width
)
1112 / FONT_WIDTH (s
->display
.x
->font
));
1113 temp_height
= ((windowinfo
.height
- 2 * intborder
1114 - s
->display
.x
->h_scrollbar_height
)
1115 / FONT_HEIGHT (s
->display
.x
->font
));
1116 if (temp_width
!= s
->width
|| temp_height
!= s
->height
)
1118 change_screen_size (s
, max (1, temp_height
),
1119 max (1, temp_width
), 0);
1120 x_resize_scrollbars (s
);
1122 s
->display
.x
->left_pos
= windowinfo
.x
;
1123 s
->display
.x
->top_pos
= windowinfo
.y
;
1124 dumprectangle (s
, 0, 0, PIXEL_WIDTH (s
), PIXEL_HEIGHT (s
));
1128 s
->display
.x
->needs_exposure
= 0;
1129 if (updating_screen
!= s
)
1130 x_display_cursor (s
, 1);
1135 /* Handle any individual-rectangle expose events queued
1136 for various windows. */
1146 screen_highlight (screen
)
1147 struct screen
*screen
;
1149 if (! EQ (Vx_no_window_manager
, Qnil
))
1150 XSetWindowBorder (x_current_display
, screen
->display
.x
->window_desc
,
1151 screen
->display
.x
->border_pixel
);
1152 x_display_cursor (screen
, 1);
1156 screen_unhighlight (screen
)
1157 struct screen
*screen
;
1159 if (! EQ (Vx_no_window_manager
, Qnil
))
1160 XSetWindowBorderPixmap (x_current_display
, screen
->display
.x
->window_desc
,
1161 screen
->display
.x
->border_tile
);
1162 x_display_cursor (screen
, 1);
1165 /* Dump the border-emphasis of screen S.
1166 If S is selected, this is a lining of the same color as the border,
1167 just within the border, occupying a portion of the internal border.
1168 If S is not selected, it is background in the same place.
1169 If ALWAYS is 0, don't bother explicitly drawing if it's background.
1171 ALWAYS = 1 is used when a screen becomes selected or deselected.
1172 In that case, we also turn the cursor off and on again
1173 so it will appear in the proper shape (solid if selected; else hollow.) */
1176 dumpborder (s
, always
)
1180 int thickness
= s
->display
.x
->internal_border_width
/ 2;
1181 int width
= PIXEL_WIDTH (s
);
1182 int height
= PIXEL_HEIGHT (s
);
1185 if (s
!= selected_screen
)
1190 pixel
= s
->display
.x
->background_pixel
;
1194 pixel
= s
->display
.x
->border_pixel
;
1197 XPixSet (s
->display
.x
->window_desc
, 0, 0, width
, thickness
, pixel
);
1198 XPixSet (s
->display
.x
->window_desc
, 0, 0, thickness
, height
, pixel
);
1199 XPixSet (s
->display
.x
->window_desc
, 0, height
- thickness
, width
,
1201 XPixSet (s
->display
.x
->window_desc
, width
- thickness
, 0, thickness
,
1205 x_display_cursor (s
, 1);
1209 static void XTscreen_rehighlight ();
1211 /* The focus has changed. Update the screens as necessary to reflect
1212 the new situation. Note that we can't change the selected screen
1213 here, because the lisp code we are interrupting might become confused.
1214 Each event gets marked with the screen in which it occured, so the
1215 lisp code can tell when the switch took place by examining the events. */
1218 x_new_focus_screen (screen
)
1219 struct screen
*screen
;
1221 struct screen
*old_focus
= x_focus_screen
;
1222 int events_enqueued
= 0;
1224 if (screen
!= x_focus_screen
)
1226 /* Set this before calling other routines, so that they see
1227 the correct value of x_focus_screen. */
1228 x_focus_screen
= screen
;
1230 if (old_focus
&& old_focus
->auto_lower
)
1231 x_lower_screen (old_focus
);
1234 selected_screen
= screen
;
1235 XSET (XWINDOW (selected_screen
->selected_window
)->screen
,
1236 Lisp_Screen
, selected_screen
);
1237 Fselect_window (selected_screen
->selected_window
);
1238 choose_minibuf_screen ();
1241 if (x_focus_screen
&& x_focus_screen
->auto_raise
)
1242 x_raise_screen (x_focus_screen
);
1245 XTscreen_rehighlight ();
1249 /* The focus has changed, or we have make a screen's selected window
1250 point to a window on a different screen (this happens with global
1251 minibuffer screens). Shift the highlight as appropriate. */
1253 XTscreen_rehighlight ()
1255 struct screen
*old_highlight
= x_highlight_screen
;
1259 x_highlight_screen
= XSCREEN (SCREEN_FOCUS_SCREEN (x_focus_screen
));
1260 if (x_highlight_screen
->display
.nothing
== 0)
1261 XSET (SCREEN_FOCUS_SCREEN (x_focus_screen
), Lisp_Screen
,
1262 (x_highlight_screen
= x_focus_screen
));
1265 x_highlight_screen
= 0;
1267 if (x_highlight_screen
!= old_highlight
)
1270 screen_unhighlight (old_highlight
);
1271 if (x_highlight_screen
)
1272 screen_highlight (x_highlight_screen
);
1283 /* Position of the mouse in characters */
1284 unsigned int x_mouse_x
, x_mouse_y
;
1286 /* Offset in buffer of character under the pointer, or 0. */
1287 extern int mouse_buffer_offset
;
1289 extern int buffer_posn_from_coords ();
1291 /* Symbols from xfns.c to denote the different parts of a window. */
1292 extern Lisp_Object Qmodeline_part
, Qtext_part
;
1295 /* Set *RESULT to an emacs input_event corresponding to MOTION_EVENT.
1296 S is the screen in which the event occurred.
1298 WINDOW_TYPE says whether the event happened in a scrollbar window
1299 or a text window, affecting the format of the event created.
1301 PART specifies which part of the scrollbar the event happened in,
1302 if WINDOW_TYPE == scrollbar_window.
1304 If the mouse is over the same character as the last time we checked,
1305 don't return an event; set result->kind to no_event. */
1308 notice_mouse_movement (result
, motion_event
, s
, window_type
, part
)
1309 struct input_event
*result
;
1310 XMotionEvent motion_event
;
1315 int x
, y
, root_x
, root_y
, pix_x
, pix_y
;
1316 unsigned int keys_and_buttons
;
1317 Window w
, root_window
;
1319 /* Unless we decide otherwise below, return a non-event. */
1320 result
->kind
= no_event
;
1322 if (XQueryPointer (x_current_display
,
1323 s
->display
.x
->window_desc
,
1325 &root_x
, &root_y
, &pix_x
, &pix_y
,
1331 if (w
== None
) /* Mouse no longer in window. */
1335 pixel_to_glyph_translation (s
, pix_x
, pix_y
, &x
, &y
);
1336 if (x
== x_mouse_x
&& y
== x_mouse_y
)
1342 /* What sort of window are we in now? */
1343 if (window_type
== text_window
) /* Text part */
1347 Vmouse_window
= window_from_coordinates (s
, x
, y
, &modeline_p
);
1349 if (XTYPE (Vmouse_window
) == Lisp_Window
)
1351 = buffer_posn_from_coords (XWINDOW (Vmouse_window
), x
, y
);
1353 mouse_buffer_offset
= 0;
1355 if (EQ (Vmouse_window
, Qnil
))
1356 Vmouse_screen_part
= Qnil
;
1357 else if (modeline_p
)
1358 Vmouse_screen_part
= Qmodeline_part
;
1360 Vmouse_screen_part
= Qtext_part
;
1362 result
->kind
= window_sys_event
;
1363 result
->code
= Qmouse_moved
;
1367 else if (window_type
== scrollbar_window
) /* Scrollbar */
1369 Vmouse_window
= s
->selected_window
;
1370 mouse_buffer_offset
= 0;
1371 Vmouse_screen_part
= part
;
1373 result
->kind
= window_sys_event
;
1374 result
->code
= Qmouse_moved
;
1384 /* Mouse clicks and mouse movement. Rah. */
1387 /* Given a pixel position (PIX_X, PIX_Y) on the screen S, return
1388 glyph co-ordinates in (*X, *Y). Set *BOUNDS to the rectangle
1389 that the glyph at X, Y occupies, if BOUNDS != 0. */
1391 pixel_to_glyph_coords (s
, pix_x
, pix_y
, x
, y
, bounds
)
1393 register unsigned int pix_x
, pix_y
;
1394 register int *x
, *y
;
1397 int ibw
= s
->display
.x
->internal_border_width
;
1399 FONT_TYPE
*font
= s
->display
.x
->font
;
1401 width
= FONT_WIDTH (font
);
1402 height
= FONT_HEIGHT (font
);
1404 /* What line is it on? */
1407 else if (pix_y
> s
->display
.x
->pixel_height
- ibw
)
1408 *y
= SCREEN_HEIGHT (s
) - 1;
1410 *y
= (pix_y
- ibw
) / height
;
1412 /* And what column? */
1415 else if (pix_x
> s
->display
.x
->pixel_width
- ibw
)
1416 *x
= SCREEN_WIDTH (s
) - 1;
1418 *x
= (pix_x
- ibw
) / width
;
1422 bounds
->width
= width
;
1423 bounds
->height
= height
;
1424 bounds
->x
= ibw
+ (*x
* width
);
1425 bounds
->y
= ibw
+ (*y
* height
);
1429 /* Any buttons grabbed. */
1430 unsigned int x_mouse_grabbed
;
1432 /* Convert a set of X modifier bits to the proper form for a
1433 struct input_event modifiers value. */
1436 x_convert_modifiers (state
)
1439 return ( ((state
& (ShiftMask
| LockMask
)) ? shift_modifier
: 0)
1440 | ((state
& ControlMask
) ? ctrl_modifier
: 0)
1441 | ((state
& Mod1Mask
) ? meta_modifier
: 0));
1444 extern struct screen
*x_window_to_scrollbar ();
1445 extern Lisp_Object Vmouse_event
;
1447 /* Prepare a mouse-event in *RESULT for placement in the input queue.
1449 If the event is a button press, then note that we have grabbed
1452 If PART and PREFIX are 0, then the event occurred in the text part;
1453 otherwise it happened in a scrollbar. */
1456 construct_mouse_click (result
, event
, s
, part
, prefix
)
1457 struct input_event
*result
;
1458 XButtonEvent
*event
;
1463 /* Initialize those fields text and scrollbar clicks hold in common.
1464 Make the event type no_event; we'll change that when we decide
1466 result
->kind
= no_event
;
1467 XSET (result
->code
, Lisp_Int
, event
->button
);
1468 XSET (result
->timestamp
, Lisp_Int
, event
->time
);
1469 result
->modifiers
= (x_convert_modifiers (event
->state
)
1470 | (event
->type
== ButtonRelease
? up_modifier
: 0));
1471 XSET (result
->timestamp
, Lisp_Int
, (event
->time
& 0x7fffff));
1473 /* Notice if the mouse is still grabbed. */
1474 if (event
->type
== ButtonPress
)
1476 if (! x_mouse_grabbed
)
1477 Vmouse_depressed
= Qt
;
1478 x_mouse_grabbed
|= (1 << event
->button
);
1480 else if (event
->type
== ButtonRelease
)
1482 x_mouse_grabbed
&= ~(1 << event
->button
);
1483 if (!x_mouse_grabbed
)
1484 Vmouse_depressed
= Qnil
;
1487 if (part
) /* Scrollbar event */
1491 pos
= event
->y
- (s
->display
.x
->v_scrollbar_width
- 2);
1492 XSET (x_mouse_x
, Lisp_Int
, pos
);
1493 len
= ((FONT_HEIGHT (s
->display
.x
->font
) * s
->height
)
1494 + s
->display
.x
->internal_border_width
1495 - (2 * (s
->display
.x
->v_scrollbar_width
- 2)));
1496 XSET (x_mouse_y
, Lisp_Int
, len
);
1498 result
->kind
= scrollbar_click
;
1499 result
->part
= part
;
1500 XSET (result
->x
, Lisp_Int
, (s
->display
.x
->top_pos
- event
->y
));
1501 XSET (result
->y
, Lisp_Int
, s
->display
.x
->pixel_height
);
1504 else /* Text Window Event */
1508 pixel_to_glyph_coords (s
, event
->x
, event
->y
, &column
, &row
, NULL
);
1509 result
->kind
= mouse_click
;
1517 /* Mouse movement. Rah.
1519 In order to avoid asking for motion events and then throwing most
1520 of them away or busy-polling the server for mouse positions, we ask
1521 the server for pointer motion hints. This means that we get only
1522 one event per group of mouse movements. "Groups" are delimited by
1523 other kinds of events (focus changes and button clicks, for
1524 example), or by XQueryPointer calls; when one of these happens, we
1525 get another MotionNotify event the next time the mouse moves. This
1526 is at least as efficient than getting motion events when mouse
1527 tracking is on, and I suspect only negligibly worse when tracking
1530 The silly O'Reilly & Associates Nutshell guides barely document
1531 pointer motion hints at all (I think you have to infer how they
1532 work from an example), and the description of XQueryPointer doesn't
1533 mention that calling it causes you to get another motion hint from
1534 the server, which is very important. */
1536 /* Where the mouse was last time we reported a mouse event. */
1537 static SCREEN_PTR last_mouse_screen
;
1538 static XRectangle last_mouse_glyph
;
1540 /* Function to report a mouse movement to the mainstream Emacs code.
1541 The input handler calls this.
1543 We have received a mouse movement event, which is given in *event.
1544 If the mouse is over a different glyph than it was last time, tell
1545 the mainstream emacs code by setting mouse_moved. If not, ask for
1546 another motion event, so we can check again the next time it moves. */
1548 note_mouse_position (screen
, event
)
1550 XMotionEvent
*event
;
1553 /* Has the mouse moved off the glyph it was on at the last sighting? */
1554 if (event
->x
< last_mouse_glyph
.x
1555 || event
->x
>= last_mouse_glyph
.x
+ last_mouse_glyph
.width
1556 || event
->y
< last_mouse_glyph
.y
1557 || event
->y
>= last_mouse_glyph
.y
+ last_mouse_glyph
.height
)
1561 /* It's on the same glyph. Call XQueryPointer so we'll get an
1562 event the next time the mouse moves and we can see if it's
1563 *still* on the same glyph. */
1566 XQueryPointer (event
->display
, event
->window
,
1567 (Window
*) &dummy
, (Window
*) &dummy
,
1568 &dummy
, &dummy
, &dummy
, &dummy
,
1569 (unsigned int *) &dummy
);
1573 /* Return the current position of the mouse.
1575 This clears the mouse_moved flag, so we can wait for the next mouse
1576 position. This also calls XQueryPointer, which will cause the
1577 server to give us another MotionNotify when the mouse moves again.
1581 XTmouse_position (s
, x
, y
, time
)
1587 Display
*d
= x_current_display
;
1588 Window guess
, root
, child
;
1592 /* I would like to have an X function that just told me the
1593 innermost window containing the mouse.
1595 /* There doesn't seem to be any way to just get the innermost window
1596 containing the pointer, no matter what X screen it's on; you have
1597 to guess a window, and then X will tell you which one of that
1598 window's children it's in. If the pointer isn't in any of that
1599 window's children, it gives you a root window that contains it.
1601 So we start with the selected screen's window and chase down
1602 branches under the guidance of XQueryPointer until we hit a leaf
1603 (all of the Emacs windows we care about are leaf windows). If at
1604 any time XQueryPointer returns false, that means that the current
1605 window does not contain the pointer any more (perhaps it moved),
1606 so we start with the root window XQueryPointer has given us and
1609 guess
= selected_screen
->display
.x
->window_desc
;
1611 if (XQueryPointer (d
, guess
, &root
, &child
,
1612 &dummy
, &dummy
, &ix
, &iy
, (unsigned int *) &dummy
))
1615 /* Guess is a leaf window, and it contains the pointer. */
1621 /* When XQueryPointer returns False, the pointer isn't in guess
1622 anymore, but root is the root window of the screen we should
1626 *s
= last_mouse_screen
= x_window_to_screen (guess
);
1631 pixel_to_glyph_coords (*s
, ix
, iy
, &ix
, &iy
, &last_mouse_glyph
);
1632 XSET (*x
, Lisp_Int
, ix
);
1633 XSET (*y
, Lisp_Int
, iy
);
1638 /* I don't know how to find the time for the last movement; it seems
1639 like XQueryPointer ought to return it, but it doesn't. */
1646 static char *events
[] =
1686 #define XEvent XKeyPressedEvent
1687 #endif /* HAVE_X11 */
1689 /* Timestamp of enter window event. This is only used by XTread_socket,
1690 but we have to put it out here, since static variables within functions
1691 sometimes don't work. */
1692 static Time enter_timestamp
;
1694 /* Read events coming from the X server.
1695 This routine is called by the SIGIO handler.
1696 We return as soon as there are no more events to be read.
1698 Events representing keys are stored in buffer BUFP,
1699 which can hold up to NUMCHARS characters.
1700 We return the number of characters stored into the buffer,
1701 thus pretending to be `read'.
1703 WAITP is nonzero if we should block until input arrives.
1704 EXPECTED is nonzero if the caller knows input is available. */
1707 XTread_socket (sd
, bufp
, numchars
, waitp
, expected
)
1709 register struct input_event
*bufp
;
1710 register int numchars
;
1717 int items_pending
; /* How many items are in the X queue. */
1724 if (x_input_blocked
)
1726 x_pending_input
= 1;
1730 x_pending_input
= 0;
1734 abort (); /* Don't think this happens. */
1737 /* If available, Xlib uses FIOSNBIO to make the socket
1738 non-blocking, and then looks for EWOULDBLOCK. If O_NDELAY is set,
1739 FIOSNBIO is ignored, and instead of signalling EWOULDBLOCK,
1740 a read returns 0, which Xlib interprets as equivalent to EPIPE. */
1741 fcntl (fileno (stdin
), F_SETFL
, 0);
1746 if (! (fcntl (fileno (stdin
), F_GETFL
, 0) & O_NDELAY
))
1748 extern int read_alarm_should_throw
;
1749 read_alarm_should_throw
= 1;
1750 XPeekEvent (XDISPLAY
&event
);
1751 read_alarm_should_throw
= 0;
1756 while (XStuffPending () != 0)
1758 XNextEvent (XDISPLAY
&event
);
1765 case SelectionClear
: /* Someone has grabbed ownership. */
1766 x_disown_selection (event
.xselectionclear
.window
,
1767 event
.xselectionclear
.selection
,
1768 event
.xselectionclear
.time
);
1771 case SelectionRequest
: /* Someone wants our selection. */
1772 x_answer_selection_request (event
);
1775 case PropertyNotify
:
1776 /* If we were to do this synchronously, there'd be no worry
1777 about re-selecting. */
1778 x_send_incremental (event
);
1782 s
= x_window_to_screen (event
.xexpose
.window
);
1785 if (s
->visible
== 0)
1789 SET_SCREEN_GARBAGED (s
);
1792 dumprectangle (x_window_to_screen (event
.xexpose
.window
),
1793 event
.xexpose
.x
, event
.xexpose
.y
,
1794 event
.xexpose
.width
, event
.xexpose
.height
);
1798 case GraphicsExpose
: /* This occurs when an XCopyArea's
1799 source area was obscured or not
1801 dumprectangle (x_window_to_screen (event
.xgraphicsexpose
.drawable
),
1802 event
.xgraphicsexpose
.x
, event
.xgraphicsexpose
.y
,
1803 event
.xgraphicsexpose
.width
,
1804 event
.xgraphicsexpose
.height
);
1807 case NoExpose
: /* This occurs when an XCopyArea's
1808 source area was completely
1811 #else /* not HAVE_X11 */
1813 if (event
.subwindow
!= 0)
1814 break; /* duplicate event */
1815 s
= x_window_to_screen (event
.window
);
1816 if (event
.window
== s
->display
.x
->icon_desc
)
1821 if (event
.window
== s
->display
.x
->window_desc
)
1823 /* Say must check all windows' needs_exposure flags. */
1824 expose_all_windows
= 1;
1825 s
->display
.x
->needs_exposure
= 1;
1831 if (event
.subwindow
!= 0)
1832 break; /* duplicate event */
1833 s
= x_window_to_screen (event
.window
);
1834 if (event
.window
== s
->display
.x
->icon_desc
)
1839 /* If window already needs full redraw, ignore this rectangle. */
1840 if (expose_all_windows
&& s
->display
.x
->needs_exposure
)
1842 /* Put the event on the queue of rectangles to redraw. */
1843 if (enqueue_event (&event
, &x_expose_queue
))
1844 /* If it is full, we can't record the rectangle,
1845 so redraw this entire window. */
1847 /* Say must check all windows' needs_exposure flags. */
1848 expose_all_windows
= 1;
1849 s
->display
.x
->needs_exposure
= 1;
1854 /* This should happen only when we are expecting it,
1855 in x_read_exposes. */
1857 #endif /* not HAVE_X11 */
1864 s
= x_window_to_screen (event
.xunmap
.window
);
1865 if (s
) /* S may no longer exist if
1866 the screen was deleted. */
1868 /* While a screen is unmapped, display generation is
1869 disabled; you don't want to spend time updating a
1870 display that won't ever be seen. */
1872 x_mouse_x
= x_mouse_y
= -1;
1878 s
= x_window_to_screen (event
.xmap
.window
);
1884 /* wait_reading_process_input will notice this and update
1885 the screen's display structures. */
1886 SET_SCREEN_GARBAGED (s
);
1890 /* Turn off processing if we become fully obscured. */
1891 case VisibilityNotify
:
1896 s
= x_window_to_screen (event
.window
);
1897 if (event
.window
== s
->display
.x
->icon_desc
)
1899 if (event
.window
== s
->display
.x
->window_desc
)
1902 #endif /* HAVE_X11 */
1906 s
= x_window_to_screen (event
.xkey
.window
);
1910 XComposeStatus status
;
1911 char copy_buffer
[80];
1912 int modifiers
= event
.xkey
.state
;
1914 /* Some keyboards generate different characters
1915 depending on the state of the meta key, in an attempt
1916 to support non-English typists. It would be nice to
1917 keep this functionality somehow, but for now, we will
1918 just clear the meta-key flag to get the 'pure' character. */
1919 event
.xkey
.state
&= ~Mod1Mask
;
1921 /* This will have to go some day... */
1922 nbytes
= XLookupString (&event
.xkey
,
1928 /* Strip off the vendor-specific keysym bit, and take a shot
1929 at recognizing the codes. HP servers have extra keysyms
1930 that fit into the MiscFunctionKey category. */
1935 if (IsCursorKey (keysym
) /* 0xff50 <= x < 0xff60 */
1936 || IsMiscFunctionKey (keysym
) /* 0xff60 <= x < 0xff80 */
1937 || IsKeypadKey (keysym
) /* 0xff80 <= x < 0xffbe */
1938 || IsFunctionKey (keysym
)) /* 0xffbe <= x < 0xffe1 */
1940 bufp
->kind
= non_ascii_keystroke
;
1941 XSET (bufp
->code
, Lisp_Int
, (unsigned) keysym
- 0xff50);
1942 bufp
->screen
= XSCREEN (SCREEN_FOCUS_SCREEN (s
));
1943 bufp
->modifiers
= x_convert_modifiers (modifiers
);
1944 XSET (bufp
->timestamp
, Lisp_Int
, event
.xkey
.time
);
1949 else if (numchars
> nbytes
)
1955 if (modifiers
& Mod1Mask
)
1956 *copy_buffer
|= METABIT
;
1957 bufp
->kind
= ascii_keystroke
;
1958 bufp
->screen
= XSCREEN (SCREEN_FOCUS_SCREEN (s
));
1959 XSET (bufp
->code
, Lisp_Int
, *copy_buffer
);
1960 XSET (bufp
->timestamp
, Lisp_Int
, event
.xkey
.time
);
1964 for (i
= nbytes
- 1; i
> 1; i
--)
1966 bufp
->kind
= ascii_keystroke
;
1967 XSET (bufp
->code
, Lisp_Int
, copy_buffer
[i
]);
1968 XSET (bufp
->timestamp
, Lisp_Int
, event
.xkey
.time
);
1969 bufp
->screen
= XSCREEN (SCREEN_FOCUS_SCREEN (s
));
1982 register char *where_mapping
;
1984 s
= x_window_to_screen (event
.window
);
1985 /* Ignore keys typed on icon windows. */
1986 if (s
!= 0 && event
.window
== s
->display
.x
->icon_desc
)
1988 where_mapping
= XLookupMapping (&event
, &nbytes
);
1989 /* Nasty fix for arrow keys */
1990 if (!nbytes
&& IsCursorKey (event
.detail
& 0xff))
1992 switch (event
.detail
& 0xff)
1994 case KC_CURSOR_LEFT
:
1995 where_mapping
= "\002";
1997 case KC_CURSOR_RIGHT
:
1998 where_mapping
= "\006";
2001 where_mapping
= "\020";
2003 case KC_CURSOR_DOWN
:
2004 where_mapping
= "\016";
2009 if (numchars
- nbytes
> 0)
2013 for (i
= 0; i
< nbytes
; i
++)
2015 bufp
->kind
= ascii_keystroke
;
2016 XSET (bufp
->code
, Lisp_Int
, where_mapping
[i
]);
2017 XSET (bufp
->time
, Lisp_Int
, event
.xkey
.time
);
2018 bufp
->screen
= XSCREEN (SCREEN_FOCUS_SCREEN (s
));
2026 #endif /* HAVE_X11 */
2030 s
= x_window_to_screen (event
.xcrossing
.window
);
2032 if (event
.xcrossing
.detail
== NotifyInferior
) /* Left Scrollbar */
2034 else if (event
.xcrossing
.focus
) /* Entered Window */
2036 /* If we decide we want to generate an event to be seen
2037 by the rest of Emacs, we put it here. */
2038 struct input_event emacs_event
;
2039 emacs_event
.kind
= no_event
;
2041 /* Avoid nasty pop/raise loops. */
2042 if (s
&& (!(s
->auto_raise
)
2044 || (event
.xcrossing
.time
- enter_timestamp
) > 500))
2046 x_new_focus_screen (s
);
2047 enter_timestamp
= event
.xcrossing
.time
;
2050 else if ((s
= x_window_to_scrollbar (event
.xcrossing
.window
,
2052 /* Fake a motion event */
2053 notice_mouse_movement (&emacs_event
,
2054 event
.xmotion
, s
, scrollbar_window
,
2059 if (! EQ (Vx_send_mouse_movement_events
, Qnil
)
2061 && emacs_event
.kind
!= no_event
)
2063 bcopy (&emacs_event
, bufp
, sizeof (struct input_event
));
2070 else if (s
== x_focus_screen
)
2071 x_new_focus_screen (0);
2073 else if (s
= x_window_to_screen (event
.xcrossing
.window
))
2080 s
= x_window_to_screen (event
.xfocus
.window
);
2082 x_new_focus_screen (s
);
2086 if (event
.xcrossing
.detail
!= NotifyInferior
2087 && event
.xcrossing
.subwindow
== None
2088 && event
.xcrossing
.mode
== NotifyNormal
)
2090 s
= x_window_to_screen (event
.xcrossing
.window
);
2091 if (event
.xcrossing
.focus
)
2092 x_new_focus_screen (s
);
2093 else if (s
== x_focus_screen
)
2094 x_new_focus_screen (0);
2099 s
= x_window_to_screen (event
.xfocus
.window
);
2100 if (s
&& s
== x_focus_screen
)
2101 x_new_focus_screen (0);
2104 #else /* not HAVE_X11 */
2107 if ((event
.detail
& 0xFF) == 1)
2108 break; /* Coming from our own subwindow */
2109 if (event
.subwindow
!= 0)
2110 break; /* Entering our own subwindow. */
2113 extern int waiting_for_input
;
2114 struct screen
*old_s
= x_input_screen
;
2116 s
= x_window_to_screen (event
.window
);
2119 if (waiting_for_input
&& x_focus_screen
== 0)
2120 x_new_focus_screen (s
);
2125 if ((event
.detail
& 0xFF) == 1)
2126 break; /* Entering our own subwindow */
2127 if (event
.subwindow
!= 0)
2128 break; /* Leaving our own subwindow. */
2131 if (x_focus_screen
== 0
2132 && x_input_screen
!= 0
2133 && x_input_screen
== x_window_to_screen (event
.window
)
2134 && event
.window
== x_input_screen
->display
.x
->window_desc
)
2139 screen_unhighlight (s
);
2142 #endif /* not HAVE_X11 */
2147 s
= x_window_to_screen (event
.xmotion
.window
);
2149 note_mouse_position (s
, &event
.xmotion
);
2151 else if ((s
= x_window_to_scrollbar (event
.xmotion
.window
,
2154 What should go here
?
2160 case ConfigureNotify
:
2163 s
= x_window_to_screen (event
.xconfigure
.window
);
2167 columns
= ((event
.xconfigure
.width
-
2168 (2 * s
->display
.x
->internal_border_width
)
2169 - s
->display
.x
->v_scrollbar_width
)
2170 / FONT_WIDTH (s
->display
.x
->font
));
2171 rows
= ((event
.xconfigure
.height
-
2172 (2 * s
->display
.x
->internal_border_width
)
2173 - s
->display
.x
->h_scrollbar_height
)
2174 / FONT_HEIGHT (s
->display
.x
->font
));
2176 /* Even if the number of character rows and columns has
2177 not changed, the font size may have changed, so we need
2178 to check the pixel dimensions as well. */
2179 if (columns
!= s
->width
2180 || rows
!= s
->height
2181 || event
.xconfigure
.width
!= s
->display
.x
->pixel_width
2182 || event
.xconfigure
.height
!= s
->display
.x
->pixel_height
)
2184 change_screen_size (s
, rows
, columns
, 0);
2185 x_resize_scrollbars (s
);
2186 SET_SCREEN_GARBAGED (s
);
2189 s
->display
.x
->pixel_width
= event
.xconfigure
.width
;
2190 s
->display
.x
->pixel_height
= event
.xconfigure
.height
;
2191 s
->display
.x
->left_pos
= event
.xconfigure
.x
;
2192 s
->display
.x
->top_pos
= event
.xconfigure
.y
;
2199 /* If we decide we want to generate an event to be seen
2200 by the rest of Emacs, we put it here. */
2201 struct input_event emacs_event
;
2202 emacs_event
.kind
= no_event
;
2204 s
= x_window_to_screen (event
.xbutton
.window
);
2206 if (!x_focus_screen
|| (s
== x_focus_screen
))
2207 construct_mouse_click (&emacs_event
,
2212 if ((s
= x_window_to_scrollbar (event
.xbutton
.window
,
2215 if (!x_focus_screen
|| (selected_screen
== x_focus_screen
))
2216 construct_mouse_click (&emacs_event
,
2217 &event
, s
, part
, prefix
);
2222 if (numchars
>= 1 && emacs_event
.kind
!= no_event
)
2224 bcopy (&emacs_event
, bufp
, sizeof (struct input_event
));
2232 #else /* not HAVE_X11 */
2234 case ButtonReleased
:
2235 s
= x_window_to_screen (event
.window
);
2238 if (event
.window
== s
->display
.x
->icon_desc
)
2240 x_make_screen_visible (s
);
2242 if (warp_mouse_on_deiconify
)
2243 XWarpMouse (s
->display
.x
->window_desc
, 10, 10);
2246 if (event
.window
== s
->display
.x
->window_desc
)
2252 enqueue_event (&event
, &x_mouse_queue
);
2255 bufp
->kind
= ascii_keystroke
;
2256 bufp
->code
= (char) 'X' & 037; /* C-x */
2257 bufp
->screen
= XSCREEN (SCREEN_FOCUS_SCREEN (s
));
2258 XSET (bufp
->time
, Lisp_Int
, event
.xkey
.time
);
2261 bufp
->kind
= ascii_keystroke
;
2262 bufp
->code
= (char) 0; /* C-@ */
2263 bufp
->screen
= XSCREEN (SCREEN_FOCUS_SCREEN (s
));
2264 XSET (bufp
->time
, Lisp_Int
, event
.xkey
.time
);
2271 #endif /* not HAVE_X11 */
2275 case CirculateNotify
:
2277 case CirculateRequest
:
2280 #endif /* HAVE_X11 */
2283 if (event
.xmapping
.request
== MappingKeyboard
)
2284 /* Someone has changed the keyboard mapping - flush the
2286 XRefreshKeyboardMapping (&event
.xmapping
);
2296 if (expected
&& ! event_found
)
2298 /* AOJ 880406: if select returns true but XPending doesn't, it means that
2299 there is an EOF condition; in other words, that X has died.
2300 Act as if there had been a hangup. */
2302 int fd
= ConnectionNumber (x_current_display
);
2305 if (0 != select (fd
+ 1, &mask
, (long *) 0, (long *) 0,
2307 && !XStuffPending ())
2308 kill (getpid (), SIGHUP
);
2310 #endif /* HAVE_SELECT */
2313 if (updating_screen
== 0)
2314 x_do_pending_expose ();
2321 /* Read and process only Expose events
2322 until we get an ExposeCopy event; then return.
2323 This is used in insert/delete line.
2324 We assume input is already blocked. */
2330 XKeyPressedEvent event
;
2334 /* while there are more events*/
2335 XMaskEvent (ExposeWindow
| ExposeRegion
| ExposeCopy
, &event
);
2339 if (event
.subwindow
!= 0)
2340 break; /* duplicate event */
2341 s
= x_window_to_screen (event
.window
);
2342 if (event
.window
== s
->display
.x
->icon_desc
)
2347 if (event
.window
== s
->display
.x
->window_desc
)
2349 expose_all_windows
= 1;
2350 s
->display
.x
->needs_exposure
= 1;
2356 if (event
.subwindow
!= 0)
2357 break; /* duplicate event */
2358 s
= x_window_to_screen (event
.window
);
2359 if (event
.window
== s
->display
.x
->icon_desc
)
2364 /* If window already needs full redraw, ignore this rectangle. */
2365 if (expose_all_windows
&& s
->display
.x
->needs_exposure
)
2367 /* Put the event on the queue of rectangles to redraw. */
2368 if (enqueue_event (&event
, &x_expose_queue
))
2369 /* If it is full, we can't record the rectangle,
2370 so redraw this entire window. */
2372 /* Say must check all windows' needs_exposure flags. */
2373 expose_all_windows
= 1;
2374 s
->display
.x
->needs_exposure
= 1;
2383 #endif /* HAVE_X11 */
2386 /* Draw a hollow box cursor. Don't change the inside of the box. */
2392 int left
= s
->cursor_x
* FONT_WIDTH (s
->display
.x
->font
)
2393 + s
->display
.x
->internal_border_width
;
2394 int top
= s
->cursor_y
* FONT_HEIGHT (s
->display
.x
->font
)
2395 + s
->display
.x
->internal_border_width
;
2396 int width
= FONT_WIDTH (s
->display
.x
->font
);
2397 int height
= FONT_HEIGHT (s
->display
.x
->font
);
2400 /* Perhaps we should subtract 1 from width and height... */
2401 XDrawRectangle (x_current_display
, s
->display
.x
->window_desc
,
2402 s
->display
.x
->cursor_gc
,
2403 left
, top
, width
- 1, height
- 1);
2405 XPixSet (s
->display
.x
->window_desc
,
2406 left
, top
, width
, 1,
2407 s
->display
.x
->cursor_pixel
);
2409 XPixSet (s
->display
.x
->window_desc
,
2410 left
, top
, 1, height
,
2411 s
->display
.x
->cursor_pixel
);
2413 XPixSet (s
->display
.x
->window_desc
,
2414 left
+width
-1, top
, 1, height
,
2415 s
->display
.x
->cursor_pixel
);
2417 XPixSet (s
->display
.x
->window_desc
,
2418 left
, top
+height
-1, width
, 1,
2419 s
->display
.x
->cursor_pixel
);
2420 #endif /* HAVE_X11 */
2423 /* Clear the cursor of screen S to background color,
2424 and mark the cursor as not shown.
2425 This is used when the text where the cursor is
2426 is about to be rewritten. */
2435 || s
->phys_cursor_x
< 0)
2439 x_display_cursor (s
, 0);
2441 XClearArea (x_current_display
, s
->display
.x
->window_desc
,
2442 s
->phys_cursor_x
* FONT_WIDTH (s
->display
.x
->font
)
2443 + s
->display
.x
->internal_border_width
,
2444 s
->phys_cursor_y
* FONT_HEIGHT (s
->display
.x
->font
)
2445 + s
->display
.x
->internal_border_width
,
2446 FONT_WIDTH (s
->display
.x
->font
) + 1, FONT_HEIGHT (s
->display
.x
->font
) + 1, False
);
2449 XPixSet (s
->display
.x
->window_desc
,
2450 s
->phys_cursor_x
* FONT_WIDTH (s
->display
.x
->font
) + s
->display
.x
->internal_border_width
,
2451 s
->phys_cursor_y
* FONT_HEIGHT (s
->display
.x
->font
) + s
->display
.x
->internal_border_width
,
2452 FONT_WIDTH (s
->display
.x
->font
), FONT_HEIGHT (s
->display
.x
->font
),
2453 s
->display
.x
->background_pixel
);
2454 #endif /* HAVE_X11 */
2455 s
->phys_cursor_x
= -1;
2459 x_display_bar_cursor (s
, on
)
2463 register int phys_x
= s
->phys_cursor_x
;
2464 register int phys_y
= s
->phys_cursor_y
;
2469 if (! s
->visible
|| (! on
&& s
->phys_cursor_x
< 0))
2474 (!on
|| phys_x
!= s
->cursor_x
|| phys_y
!= s
->cursor_y
))
2476 x1
= phys_x
* FONT_WIDTH (s
->display
.x
->font
)
2477 + s
->display
.x
->internal_border_width
;
2478 y1
= phys_y
* FONT_HEIGHT (s
->display
.x
->font
)
2479 + s
->display
.x
->internal_border_width
- 1;
2480 y2
= y1
+ FONT_HEIGHT (s
->display
.x
->font
) + 1;
2482 XDrawLine (x_current_display
, s
->display
.x
->window_desc
,
2483 s
->display
.x
->reverse_gc
, x1
, y1
, x1
, y2
);
2485 s
->phys_cursor_x
= phys_x
= -1;
2488 if (on
&& s
== x_highlight_screen
)
2490 x1
= s
->cursor_x
* FONT_WIDTH (s
->display
.x
->font
)
2491 + s
->display
.x
->internal_border_width
;
2492 y1
= s
->cursor_y
* FONT_HEIGHT (s
->display
.x
->font
)
2493 + s
->display
.x
->internal_border_width
- 1;
2494 y2
= y1
+ FONT_HEIGHT (s
->display
.x
->font
) + 1;
2496 XDrawLine (x_current_display
, s
->display
.x
->window_desc
,
2497 s
->display
.x
->cursor_gc
, x1
, y1
, x1
, y2
);
2499 s
->phys_cursor_x
= s
->cursor_x
;
2500 s
->phys_cursor_y
= s
->cursor_y
;
2508 /* Redraw the glyph at ROW, COLUMN on screen S, in the style
2509 HIGHLIGHT. HIGHLIGHT is as defined for dumpglyphs. Return the
2513 x_draw_single_glyph (s
, row
, column
, glyph
, highlight
)
2520 (column
* FONT_WIDTH (s
->display
.x
->font
)
2521 + s
->display
.x
->internal_border_width
),
2522 (row
* FONT_HEIGHT (s
->display
.x
->font
)
2523 + s
->display
.x
->internal_border_width
),
2524 &glyph
, 1, highlight
, s
->display
.x
->font
);
2527 /* Turn the displayed cursor of screen S on or off according to ON.
2528 If ON is nonzero, where to put the cursor is specified
2529 by S->cursor_x and S->cursor_y. */
2532 x_display_box_cursor (s
, on
)
2536 struct screen_glyphs
*current_glyphs
= SCREEN_CURRENT_GLYPHS (s
);
2541 /* If cursor is off and we want it off, return quickly. */
2542 if (!on
&& s
->phys_cursor_x
< 0)
2545 /* If cursor is currently being shown and we don't want it to be
2546 or it is in the wrong place,
2547 or we want a hollow box and it's not so, (pout!)
2549 if (s
->phys_cursor_x
>= 0
2551 || s
->phys_cursor_x
!= s
->cursor_x
2552 || s
->phys_cursor_y
!= s
->cursor_y
2553 || (s
->display
.x
->text_cursor_kind
!= hollow_box_cursor
2554 && (s
!= x_highlight_screen
))))
2556 /* Erase the cursor by redrawing the character underneath it. */
2557 x_draw_single_glyph (s
, s
->phys_cursor_y
, s
->phys_cursor_x
,
2558 s
->phys_cursor_glyph
,
2559 current_glyphs
->highlight
[s
->phys_cursor_y
]);
2560 s
->phys_cursor_x
= -1;
2563 /* If we want to show a cursor,
2564 or we want a box cursor and it's not so,
2565 write it in the right place. */
2567 && (s
->phys_cursor_x
< 0
2568 || (s
->display
.x
->text_cursor_kind
!= filled_box_cursor
2569 && s
== x_highlight_screen
)))
2571 s
->phys_cursor_glyph
2572 = ((current_glyphs
->enable
[s
->cursor_y
]
2573 && s
->cursor_x
< current_glyphs
->used
[s
->cursor_y
])
2574 ? current_glyphs
->glyphs
[s
->cursor_y
][s
->cursor_x
]
2576 if (s
!= x_highlight_screen
)
2579 s
->display
.x
->text_cursor_kind
= hollow_box_cursor
;
2583 x_draw_single_glyph (s
, s
->cursor_y
, s
->cursor_x
,
2584 s
->phys_cursor_glyph
, 2);
2585 s
->display
.x
->text_cursor_kind
= filled_box_cursor
;
2588 s
->phys_cursor_x
= s
->cursor_x
;
2589 s
->phys_cursor_y
= s
->cursor_y
;
2592 if (updating_screen
!= s
)
2596 extern Lisp_Object Vbar_cursor
;
2598 x_display_cursor (s
, on
)
2602 if (EQ (Vbar_cursor
, Qnil
))
2603 x_display_box_cursor (s
, on
);
2605 x_display_bar_cursor (s
, on
);
2610 /* Refresh bitmap kitchen sink icon for screen S
2611 when we get an expose event for it. */
2617 /* Normally, the window manager handles this function. */
2621 if (s
->display
.x
->icon_bitmap_flag
)
2622 XBitmapBitsPut (s
->display
.x
->icon_desc
, 0, 0, sink_width
, sink_height
,
2623 sink_bits
, BlackPixel
, WHITE_PIX_DEFAULT
,
2624 icon_bitmap
, GXcopy
, AllPlanes
);
2627 extern struct screen
*selected_screen
;
2628 struct Lisp_String
*str
;
2629 unsigned char *string
;
2632 = XSTRING (XBUFFER (XWINDOW (s
->selected_window
)->buffer
)->name
)->data
;
2634 if (s
->display
.x
->icon_label
!= string
)
2636 s
->display
.x
->icon_label
= string
;
2637 XChangeWindow (s
->display
.x
->icon_desc
,
2638 XQueryWidth (string
, icon_font_info
->id
) + 10,
2639 icon_font_info
->height
+ 10);
2642 XText (s
->display
.x
->icon_desc
, 5, 5, string
,
2643 str
->size
, icon_font_info
->id
,
2644 BLACK_PIX_DEFAULT
, WHITE_PIX_DEFAULT
);
2647 #endif /* HAVE_X11 */
2650 /* Make the x-window of screen S use the kitchen-sink icon
2651 that's a window generated by Emacs. */
2660 if (s
->display
.x
->window_desc
== 0)
2665 XFreePixmap (x_current_display
, icon_bitmap
);
2668 XCreateBitmapFromData (x_current_display
, s
->display
.x
->window_desc
,
2669 gnu_bits
, gnu_width
, gnu_height
);
2670 x_wm_set_icon_pixmap (s
, icon_bitmap
);
2671 s
->display
.x
->icon_bitmap_flag
= 1;
2673 if (s
->display
.x
->icon_desc
)
2675 XClearIconWindow (s
->display
.x
->window_desc
);
2676 XDestroyWindow (s
->display
.x
->icon_desc
);
2679 icon_window
= XCreateWindow (s
->display
.x
->parent_desc
,
2680 0, 0, sink_width
, sink_height
,
2681 2, WhitePixmap
, (Pixmap
) NULL
);
2683 if (icon_window
== 0)
2686 XSetIconWindow (s
->display
.x
->window_desc
, icon_window
);
2687 XSelectInput (icon_window
, ExposeWindow
| UnmapWindow
);
2689 s
->display
.x
->icon_desc
= icon_window
;
2690 s
->display
.x
->icon_bitmap_flag
= 1;
2692 if (icon_bitmap
== 0)
2694 = XStoreBitmap (sink_mask_width
, sink_mask_height
, sink_mask_bits
);
2695 #endif /* HAVE_X11 */
2701 /* Make the x-window of screen S use a rectangle with text. */
2704 x_text_icon (s
, icon_name
)
2712 char *X_DefaultValue
;
2716 #define WhitePixel 1
2720 #define BlackPixel 0
2722 #endif /* not HAVE_X11 */
2724 if (s
->display
.x
->window_desc
== 0)
2727 if (icon_font_info
== 0)
2729 = XGetFont (XGetDefault (XDISPLAY
2730 (char *) XSTRING (invocation_name
)->data
,
2735 s
->display
.x
->icon_label
= icon_name
;
2737 if (! s
->display
.x
->icon_label
)
2738 s
->display
.x
->icon_label
= " *emacs* ";
2740 XSetIconName (x_current_display
, s
->display
.x
->window_desc
,
2741 (char *) s
->display
.x
->icon_label
);
2743 s
->display
.x
->icon_bitmap_flag
= 0;
2745 if (s
->display
.x
->icon_desc
)
2747 XClearIconWindow (XDISPLAY s
->display
.x
->window_desc
);
2748 XDestroyWindow (XDISPLAY s
->display
.x
->icon_desc
);
2752 s
->display
.x
->icon_label
= (unsigned char *) icon_name
;
2754 if (! s
->display
.x
->icon_label
)
2755 s
->display
.x
->icon_label
= XSTRING (s
->name
)->data
;
2757 width
= XStringWidth (s
->display
.x
->icon_label
, icon_font_info
, 0, 0);
2758 icon_window
= XCreateWindow (s
->display
.x
->parent_desc
,
2759 s
->display
.x
->left_pos
,
2760 s
->display
.x
->top_pos
,
2761 width
+ 10, icon_font_info
->height
+ 10,
2762 2, BlackPixmap
, WhitePixmap
);
2764 if (icon_window
== 0)
2767 XSetIconWindow (s
->display
.x
->window_desc
, icon_window
);
2768 XSelectInput (icon_window
, ExposeWindow
| ExposeRegion
| UnmapWindow
| ButtonPressed
);
2770 s
->display
.x
->icon_desc
= icon_window
;
2771 s
->display
.x
->icon_bitmap_flag
= 0;
2772 s
->display
.x
->icon_label
= 0;
2773 #endif /* HAVE_X11 */
2778 static char *x_proto_requests
[] =
2781 "ChangeWindowAttributes",
2782 "GetWindowAttributes",
2784 "DestroySubwindows",
2801 "SetSelectionOwner",
2802 "GetSelectionOwner",
2809 "ChangeActivePointerGrab",
2829 "ListFontsWithInfo",
2838 "SetClipRectangles",
2849 "PolyFillRectangle",
2859 "CopyColormapAndFree",
2861 "UninstallColormap",
2862 "ListInstalledColormaps",
2873 "CreateGlyphCursor",
2879 "ChangeKeyboardMapping",
2880 "GetKeyboardMapping",
2881 "ChangeKeyboardControl",
2882 "GetKeyboardControl",
2884 "ChangePointerControl",
2885 "GetPointerControl",
2895 "SetPointerMapping",
2896 "GetPointerMapping",
2897 "SetModifierMapping",
2898 "GetModifierMapping",
2902 #define acceptable_x_error_p(type) ((type) == 94)
2904 x_handle_error_gracefully (event
)
2907 char error_ptr
[128];
2908 char *proto_ptr
= x_proto_requests
[event
->request_code
];
2911 XGetErrorText (x_current_display
, event
->error_code
, error_ptr
, 128);
2912 sprintf (str
, "X Protocol Error: %s on request: %s", error_ptr
, proto_ptr
);
2913 TOTALLY_UNBLOCK_INPUT
;
2918 extern int x_selection_alloc_error
;
2919 extern int x_converting_selection
;
2922 /* Handle X Errors. If the error is not traumatic,
2923 just call error (). Otherwise print a (hopefully) interesting
2926 The arg to Fkill_emacs is an exit status value
2927 and also prevents any questions. */
2929 x_error_handler (disp
, event
)
2934 #define XlibDisplayIOError (1L << 0)
2937 struct _XErrorEvent
*event
;
2940 /* Here we use the standard X handlers. */
2943 if (event
&& event
->type
== 0) /* 0 is the XError Event type. */
2947 if (event
->request_code
== BadAlloc
&& x_converting_selection
)
2948 x_selection_alloc_error
= 1;
2952 if (acceptable_x_error_p (event
->request_code
))
2953 x_handle_error_gracefully (event
);
2955 _XDefaultError (disp
, event
);
2959 disp
->flags
|= XlibDisplayIOError
;
2960 _XDefaultIOError (disp
);
2967 Fkill_emacs (make_number (70));
2970 /* Initialize communication with the X window server. */
2973 static unsigned int x_wire_count
;
2976 fprintf (stderr
, "Lib call: %d\n", ++x_wire_count
);
2981 /* Set the font of the x-window specified by screen S
2982 to the font named NEWNAME. This is safe to use
2983 even before S has an actual x-window. */
2987 /* A table of all the fonts we have already loaded. */
2988 static XFontStruct
**x_font_table
;
2990 /* The current capacity of x_font_table. */
2991 static int x_font_table_size
;
2993 /* The number of fonts actually stored in x_font_table.
2994 x_font_table[n] is used and valid iff 0 <= n < n_fonts.
2995 0 <= n_fonts <= x_font_table_size. */
2998 x_new_font (s
, fontname
)
3000 register char *fontname
;
3004 int n_matching_fonts
;
3005 XFontStruct
*font_info
;
3008 /* Get a list of all the fonts that match this name. Once we
3009 have a list of matching fonts, we compare them against the fonts
3010 we already have by comparing font ids. */
3011 font_names
= (char **) XListFontsWithInfo (x_current_display
, fontname
,
3012 1024, &n_matching_fonts
,
3014 /* If the server couldn't find any fonts whose named matched fontname,
3015 return an error code. */
3016 if (n_matching_fonts
== 0)
3019 /* See if we've already loaded a matching font. */
3024 for (i
= 0; i
< n_fonts
; i
++)
3025 for (j
= 0; j
< n_matching_fonts
; j
++)
3026 if (x_font_table
[i
]->fid
== font_info
[j
].fid
)
3034 /* If we have, just return it from the table. */
3036 s
->display
.x
->font
= x_font_table
[already_loaded
];
3038 /* Otherwise, load the font and add it to the table. */
3043 font
= (XFontStruct
*) XLoadQueryFont (x_current_display
, fontname
);
3047 /* Do we need to create the table? */
3048 if (x_font_table_size
== 0)
3050 x_font_table_size
= 16;
3052 = (XFontStruct
**) xmalloc (x_font_table_size
3053 * sizeof (x_font_table
[0]));
3055 /* Do we need to grow the table? */
3056 else if (n_fonts
>= x_font_table_size
)
3058 x_font_table_size
*= 2;
3060 = (XFontStruct
**) xrealloc (x_font_table
,
3062 * sizeof (x_font_table
[0])));
3065 s
->display
.x
->font
= x_font_table
[n_fonts
++] = font
;
3068 /* Free the information from XListFontsWithInfo. The data
3069 we actually retain comes from XLoadQueryFont. */
3070 XFreeFontInfo (font_names
, font_info
, n_matching_fonts
);
3072 /* Now make the screen display the given font. */
3073 if (s
->display
.x
->window_desc
!= 0)
3075 XSetFont (x_current_display
, s
->display
.x
->normal_gc
,
3076 s
->display
.x
->font
->fid
);
3077 XSetFont (x_current_display
, s
->display
.x
->reverse_gc
,
3078 s
->display
.x
->font
->fid
);
3079 XSetFont (x_current_display
, s
->display
.x
->cursor_gc
,
3080 s
->display
.x
->font
->fid
);
3082 x_set_window_size (s
, s
->width
, s
->height
);
3088 x_new_font (s
, newname
)
3090 register char *newname
;
3095 temp
= XGetFont (newname
);
3096 if (temp
== (FONT_TYPE
*) 0)
3099 if (s
->display
.x
->font
)
3100 XLoseFont (s
->display
.x
->font
);
3102 s
->display
.x
->font
= temp
;
3104 if (s
->display
.x
->window_desc
!= 0)
3105 x_set_window_size (s
, s
->width
, s
->height
);
3111 x_calc_absolute_position (s
)
3115 if (s
->display
.x
->left_pos
< 0)
3116 s
->display
.x
->left_pos
3117 = XINT (x_screen_width
) - PIXEL_WIDTH (s
) + s
->display
.x
->left_pos
;
3119 if (s
->display
.x
->top_pos
< 0)
3120 s
->display
.x
->top_pos
3121 = XINT (x_screen_height
) - PIXEL_HEIGHT (s
) + s
->display
.x
->top_pos
;
3123 WINDOWINFO_TYPE parentinfo
;
3125 XGetWindowInfo (s
->display
.x
->window_desc
, &parentinfo
);
3127 if (s
->display
.x
->left_pos
< 0)
3128 s
->display
.x
->left_pos
= parentinfo
.width
+ (s
->display
.x
->left_pos
+ 1)
3129 - PIXEL_WIDTH (s
) - 2 * s
->display
.x
->internal_border_width
;
3131 if (s
->display
.x
->top_pos
< 0)
3132 s
->display
.x
->top_pos
= parentinfo
.height
+ (s
->display
.x
->top_pos
+ 1)
3133 - PIXEL_HEIGHT (s
) - 2 * s
->display
.x
->internal_border_width
;
3137 x_set_offset (s
, xoff
, yoff
)
3139 register int xoff
, yoff
;
3141 s
->display
.x
->top_pos
= yoff
;
3142 s
->display
.x
->left_pos
= xoff
;
3143 x_calc_absolute_position (s
);
3146 XMoveWindow (XDISPLAY s
->display
.x
->window_desc
,
3147 s
->display
.x
->left_pos
, s
->display
.x
->top_pos
);
3149 x_wm_set_size_hint (s
, 0);
3154 /* Call this to change the size of screen S's x-window. */
3156 x_set_window_size (s
, cols
, rows
)
3158 register int cols
, rows
;
3160 int pixelwidth
, pixelheight
;
3162 int ibw
= s
->display
.x
->internal_border_width
;
3166 /* ??? Who DOES worry about minimum reasonable sizes? */
3167 pixelwidth
= (cols
* FONT_WIDTH (s
->display
.x
->font
) + 2 * ibw
3168 + s
->display
.x
->v_scrollbar_width
);
3169 pixelheight
= (rows
* FONT_HEIGHT (s
->display
.x
->font
) + 2 * ibw
3170 + s
->display
.x
->h_scrollbar_height
);
3173 x_wm_set_size_hint (s
, 0);
3174 #endif /* HAVE_X11 */
3175 XChangeWindowSize (s
->display
.x
->window_desc
, pixelwidth
, pixelheight
);
3181 x_set_resize_hint (s
)
3185 XSetResizeHint (s
->display
.x
->window_desc
, 2 * s
->display
.x
->internal_border_width
,
3186 2 * s
->display
.x
->internal_border_width
,
3187 FONT_WIDTH (s
->display
.x
->font
), FONT_HEIGHT (s
->display
.x
->font
));
3189 #endif /* not HAVE_X11 */
3192 x_set_mouse_position (s
, x
, y
)
3201 pix_x
= (SCREEN_WIDTH (s
)
3202 * FONT_WIDTH (s
->display
.x
->font
)
3203 + 2 * s
->display
.x
->internal_border_width
3204 + s
->display
.x
->v_scrollbar_width
) / 2;
3206 pix_x
= x
* FONT_WIDTH (s
->display
.x
->font
) + 2; /* add 2 pixels to each
3207 dimension to move the
3212 pix_y
= (SCREEN_HEIGHT (s
)
3213 * FONT_HEIGHT (s
->display
.x
->font
)
3214 + 2 * s
->display
.x
->internal_border_width
3215 + s
->display
.x
->h_scrollbar_height
) / 2;
3217 pix_y
= y
* FONT_HEIGHT (s
->display
.x
->font
) + 2;
3223 XWarpMousePointer (s
->display
.x
->window_desc
, pix_x
, pix_y
);
3228 x_focus_on_screen (s
)
3233 /* I don't think that the ICCCM allows programs to do things like this
3234 without the interaction of the window manager. Whatever you end up
3235 doing with this code, do it to x_unfocus_screen too. */
3236 XSetInputFocus (x_current_display
, s
->display
.x
->window_desc
,
3237 RevertToPointerRoot
, CurrentTime
);
3241 x_unfocus_screen (s
)
3245 /* Look at the remarks in x_focus_on_screen. */
3246 if (x_focus_screen
== s
)
3247 XSetInputFocus (x_current_display
, PointerRoot
,
3248 RevertToPointerRoot
, CurrentTime
);
3254 /* Raise screen S. */
3262 XRaiseWindow (XDISPLAY s
->display
.x
->window_desc
);
3268 /* Lower screen S. */
3276 XLowerWindow (XDISPLAY s
->display
.x
->window_desc
);
3282 /* Change from withdrawn state to mapped state. */
3284 x_make_screen_visible (s
)
3291 if (! SCREEN_VISIBLE_P (s
))
3294 if (! EQ (Vx_no_window_manager
, Qt
))
3295 x_wm_set_window_state (s
, NormalState
);
3297 XMapWindow (XDISPLAY s
->display
.x
->window_desc
);
3298 if (s
->display
.x
->v_scrollbar
!= 0 || s
->display
.x
->h_scrollbar
!= 0)
3299 XMapSubwindows (x_current_display
, s
->display
.x
->window_desc
);
3301 XMapWindow (XDISPLAY s
->display
.x
->window_desc
);
3302 if (s
->display
.x
->icon_desc
!= 0)
3303 XUnmapWindow (s
->display
.x
->icon_desc
);
3305 /* Handled by the MapNotify event for X11 */
3309 /* NOTE: this may cause problems for the first screen. */
3311 #endif /* not HAVE_X11 */
3319 /* Change from mapped state to withdrawn state. */
3321 x_make_screen_invisible (s
)
3332 if (! EQ (Vx_no_window_manager
, Qt
))
3336 unmap
.type
= UnmapNotify
;
3337 unmap
.window
= s
->display
.x
->window_desc
;
3338 unmap
.event
= DefaultRootWindow (x_current_display
);
3339 unmap
.from_configure
= False
;
3340 XSendEvent (x_current_display
, DefaultRootWindow (x_current_display
),
3341 False
, SubstructureRedirectMask
|SubstructureNotifyMask
,
3345 /* The new function below does the same as the above code, plus unmapping
3346 the window. Sending the event without actually unmapping can make
3347 the window manager start ignoring the window (i.e., no more title bar,
3348 icon manager stuff.) */
3351 /* New function available with R4 */
3352 if (! XWithdrawWindow (x_current_display
, s
->display
.x
->window_desc
,
3353 DefaultScreen (x_current_display
)))
3355 UNBLOCK_INPUT_RESIGNAL
;
3356 error ("Can't notify window manager of iconification.");
3360 XUnmapWindow (XDISPLAY s
->display
.x
->window_desc
);
3362 s
->visible
= 0; /* Handled by the UnMap event for X11 */
3363 if (s
->display
.x
->icon_desc
!= 0)
3364 XUnmapWindow (XDISPLAY s
->display
.x
->icon_desc
);
3365 #endif /* not HAVE_X11 */
3371 /* Window manager communication. Created in Fx_open_connection. */
3372 extern Atom Xatom_wm_change_state
;
3374 /* Change window state from mapped to iconified. */
3376 x_iconify_screen (s
)
3387 if (! EQ (Vx_no_window_manager
, Qt
))
3388 if (! XIconifyWindow (x_current_display
, s
->display
.x
->window_desc
,
3389 DefaultScreen (x_current_display
)))
3391 UNBLOCK_INPUT_RESIGNAL
;
3392 error ("Can't notify window manager of iconification.");
3399 XClientMessageEvent message
;
3401 message
.window
= s
->display
.x
->window_desc
;
3402 message
.type
= ClientMessage
;
3403 message
.message_type
= Xatom_wm_change_state
;
3404 message
.format
= 32;
3405 message
.data
.l
[0] = IconicState
;
3407 if (! XSendEvent (x_current_display
,
3408 DefaultRootWindow (x_current_display
),
3410 SubstructureRedirectMask
| SubstructureNotifyMask
,
3413 UNBLOCK_INPUT_RESIGNAL
;
3414 error ("Can't notify window manager of iconification.");
3419 XUnmapWindow (XDISPLAY s
->display
.x
->window_desc
);
3421 s
->visible
= 0; /* Handled in the UnMap event for X11. */
3422 if (s
->display
.x
->icon_desc
!= 0)
3424 XMapWindow (XDISPLAY s
->display
.x
->icon_desc
);
3433 /* Destroy the X window of screen S.
3434 DISPL is the former s->display (since s->display
3435 has already been nulled out). */
3437 x_destroy_window (s
, displ
)
3439 union display displ
;
3444 if (displ
.x
->icon_desc
!= 0)
3445 XDestroyWindow (XDISPLAY displ
.x
->icon_desc
);
3446 XDestroyWindow (XDISPLAY displ
.x
->window_desc
);
3451 if (s
== x_focus_screen
)
3453 if (s
== x_highlight_screen
)
3454 x_highlight_screen
= 0;
3459 /* Manage event queues.
3461 This code is only used by the X10 support.
3463 We cannot leave events in the X queue and get them when we are ready
3464 because X does not provide a subroutine to get only a certain kind
3465 of event but not block if there are no queued events of that kind.
3467 Therefore, we must examine events as they come in and copy events
3468 of certain kinds into our private queues.
3470 All ExposeRegion events are put in x_expose_queue.
3471 All ButtonPressed and ButtonReleased events are put in x_mouse_queue. */
3474 /* Write the event *P_XREP into the event queue *QUEUE.
3475 If the queue is full, do nothing, but return nonzero. */
3478 enqueue_event (p_xrep
, queue
)
3479 register XEvent
*p_xrep
;
3480 register struct event_queue
*queue
;
3482 int newindex
= queue
->windex
+ 1;
3483 if (newindex
== EVENT_BUFFER_SIZE
)
3485 if (newindex
== queue
->rindex
)
3487 queue
->xrep
[queue
->windex
] = *p_xrep
;
3488 queue
->windex
= newindex
;
3492 /* Fetch the next event from queue *QUEUE and store it in *P_XREP.
3493 If *QUEUE is empty, do nothing and return 0. */
3496 dequeue_event (p_xrep
, queue
)
3497 register XEvent
*p_xrep
;
3498 register struct event_queue
*queue
;
3500 if (queue
->windex
== queue
->rindex
)
3502 *p_xrep
= queue
->xrep
[queue
->rindex
++];
3503 if (queue
->rindex
== EVENT_BUFFER_SIZE
)
3508 /* Return the number of events buffered in *QUEUE. */
3511 queue_event_count (queue
)
3512 register struct event_queue
*queue
;
3514 int tem
= queue
->windex
- queue
->rindex
;
3517 return EVENT_BUFFER_SIZE
+ tem
;
3520 /* Return nonzero if mouse input is pending. */
3523 mouse_event_pending_p ()
3525 return queue_event_count (&x_mouse_queue
);
3531 x_wm_set_size_hint (s
, prompting
)
3535 XSizeHints size_hints
;
3536 Window window
= s
->display
.x
->window_desc
;
3538 size_hints
.flags
= PResizeInc
| PMinSize
| PMaxSize
;
3540 flexlines
= s
->height
;
3542 size_hints
.x
= s
->display
.x
->left_pos
;
3543 size_hints
.y
= s
->display
.x
->top_pos
;
3544 size_hints
.height
= PIXEL_HEIGHT (s
);
3545 size_hints
.width
= PIXEL_WIDTH (s
);
3546 size_hints
.width_inc
= FONT_WIDTH (s
->display
.x
->font
);
3547 size_hints
.height_inc
= FONT_HEIGHT (s
->display
.x
->font
);
3548 size_hints
.base_width
= (2 * s
->display
.x
->internal_border_width
)
3549 + s
->display
.x
->v_scrollbar_width
;
3550 size_hints
.base_height
= (2 * s
->display
.x
->internal_border_width
)
3551 + s
->display
.x
->h_scrollbar_height
;
3552 size_hints
.min_width
= size_hints
.base_width
+ size_hints
.width_inc
;
3553 size_hints
.min_height
= size_hints
.base_height
+ size_hints
.height_inc
;
3554 size_hints
.max_width
= x_screen_width
3555 - ((2 * s
->display
.x
->internal_border_width
)
3556 + s
->display
.x
->v_scrollbar_width
);
3557 size_hints
.max_height
= x_screen_height
3558 - ((2 * s
->display
.x
->internal_border_width
)
3559 + s
->display
.x
->h_scrollbar_height
);
3562 size_hints
.flags
|= prompting
;
3565 XSizeHints hints
; /* Sometimes I hate X Windows... */
3567 XGetNormalHints (x_current_display
, window
, &hints
);
3568 if (hints
.flags
& PSize
)
3569 size_hints
.flags
|= PSize
;
3570 if (hints
.flags
& PPosition
)
3571 size_hints
.flags
|= PPosition
;
3572 if (hints
.flags
& USPosition
)
3573 size_hints
.flags
|= USPosition
;
3574 if (hints
.flags
& USSize
)
3575 size_hints
.flags
|= USSize
;
3579 XSetNormalHints (x_current_display
, window
, &size_hints
);
3581 XSetWMNormalHints (x_current_display
, window
, &size_hints
);
3584 /* Used for IconicState or NormalState */
3585 x_wm_set_window_state (s
, state
)
3590 Window window
= s
->display
.x
->window_desc
;
3592 wm_hints
.flags
= StateHint
;
3593 wm_hints
.initial_state
= state
;
3594 XSetWMHints (x_current_display
, window
, &wm_hints
);
3597 x_wm_set_icon_pixmap (s
, icon_pixmap
)
3602 Window window
= s
->display
.x
->window_desc
;
3604 wm_hints
.flags
= IconPixmapHint
;
3605 wm_hints
.icon_pixmap
= icon_pixmap
;
3606 XSetWMHints (x_current_display
, window
, &wm_hints
);
3609 x_wm_set_icon_position (s
, icon_x
, icon_y
)
3614 Window window
= s
->display
.x
->window_desc
;
3616 wm_hints
.flags
= IconPositionHint
;
3617 wm_hints
.icon_x
= icon_x
;
3618 wm_hints
.icon_y
= icon_y
;
3619 XSetWMHints (x_current_display
, window
, &wm_hints
);
3624 x_term_init (display_name
)
3630 extern int old_fcntl_owner
;
3633 x_focus_screen
= x_highlight_screen
= 0;
3635 x_current_display
= XOpenDisplay (display_name
);
3636 if (x_current_display
== 0)
3637 fatal ("X server %s not responding; check the DISPLAY environment variable or use \"-d\"\n",
3642 int hostname_size
= MAXHOSTNAMELEN
+ 1;
3644 hostname
= (char *) xmalloc (hostname_size
);
3647 XSetAfterFunction (x_current_display
, x_trace_wire
);
3650 invocation_name
= Ffile_name_nondirectory (Fcar (Vcommand_line_args
));
3652 /* Try to get the host name; if the buffer is too short, try
3653 again. Apparently, the only indication gethostname gives of
3654 whether the buffer was large enough is the presence or absence
3655 of a '\0' in the string. Eech. */
3658 gethostname (hostname
, hostname_size
- 1);
3659 hostname
[hostname_size
- 1] = '\0';
3661 /* Was the buffer large enough for gethostname to store the '\0'? */
3662 if (strlen (hostname
) < hostname_size
- 1)
3665 hostname_size
<<= 1;
3666 hostname
= (char *) xrealloc (hostname
, hostname_size
);
3668 x_id_name
= (char *) xmalloc (XSTRING (invocation_name
)->size
3671 sprintf (x_id_name
, "%s@%s", XSTRING (invocation_name
)->data
, hostname
);
3674 dup2 (ConnectionNumber (x_current_display
), 0);
3676 #ifndef SYSV_STREAMS
3677 /* Streams somehow keeps track of which descriptor number
3678 is being used to talk to X. So it is not safe to substitute
3679 descriptor 0. But it is safe to make descriptor 0 a copy of it. */
3680 close (ConnectionNumber (x_current_display
));
3681 ConnectionNumber (x_current_display
) = 0; /* Looks a little strange?
3682 * check the def of the macro;
3683 * it is a genuine lvalue */
3684 #endif /* not SYSV_STREAMS */
3686 #endif /* HAVE_X11 */
3689 old_fcntl_owner
= fcntl (0, F_GETOWN
, 0);
3690 #ifdef F_SETOWN_SOCK_NEG
3691 fcntl (0, F_SETOWN
, -getpid ()); /* stdin is a socket here */
3693 fcntl (0, F_SETOWN
, getpid ());
3694 #endif /* F_SETOWN_SOCK_NEG */
3695 #endif /* F_SETOWN */
3701 /* Must use interrupt input because we cannot otherwise
3702 arrange for C-g to be noticed immediately.
3703 We cannot connect it to SIGINT. */
3704 Fset_input_mode (Qt
, Qnil
, Qt
, Qnil
);
3706 expose_all_windows
= 0;
3708 clear_screen_hook
= XTclear_screen
;
3709 clear_end_of_line_hook
= XTclear_end_of_line
;
3710 ins_del_lines_hook
= XTins_del_lines
;
3711 change_line_highlight_hook
= XTchange_line_highlight
;
3712 insert_glyphs_hook
= XTinsert_glyphs
;
3713 write_glyphs_hook
= XTwrite_glyphs
;
3714 delete_glyphs_hook
= XTdelete_glyphs
;
3715 ring_bell_hook
= XTring_bell
;
3716 reset_terminal_modes_hook
= XTreset_terminal_modes
;
3717 set_terminal_modes_hook
= XTset_terminal_modes
;
3718 update_begin_hook
= XTupdate_begin
;
3719 update_end_hook
= XTupdate_end
;
3720 set_terminal_window_hook
= XTset_terminal_window
;
3721 read_socket_hook
= XTread_socket
;
3722 cursor_to_hook
= XTcursor_to
;
3723 reassert_line_highlight_hook
= XTreassert_line_highlight
;
3724 screen_rehighlight_hook
= XTscreen_rehighlight
;
3725 mouse_position_hook
= XTmouse_position
;
3727 scroll_region_ok
= 1; /* we'll scroll partial screens */
3728 char_ins_del_ok
= 0; /* just as fast to write the line */
3729 line_ins_del_ok
= 1; /* we'll just blt 'em */
3730 fast_clear_end_of_line
= 1; /* X does this well */
3731 memory_below_screen
= 0; /* we don't remember what scrolls
3735 XHandleError (x_error_handler
);
3736 XHandleIOError (x_error_handler
);
3738 /* Disable Window Change signals; they are handled by X events. */
3740 signal (SIGWINCH
, SIG_DFL
);
3741 #endif /* SIGWINCH */
3743 signal (SIGPIPE
, x_error_handler
);
3749 staticpro (&invocation_name
);
3750 invocation_name
= Qnil
;
3752 #endif /* HAVE_X11 */
3753 #endif /* HAVE_X_WINDOWS */