1 /* MS-DOS specific C utilities. -*- coding: raw-text -*-
2 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002,
3 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
4 Free Software Foundation, Inc.
6 This file is part of GNU Emacs.
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
21 /* Contributed by Morten Welinder */
22 /* New display, keyboard, and mouse control by Kim F. Storm */
24 /* Note: some of the stuff here was taken from end of sysdep.c in demacs. */
34 #include <sys/param.h>
38 #include <string.h> /* for bzero and string functions */
39 #include <sys/stat.h> /* for _fixpath */
40 #include <unistd.h> /* for chdir, dup, dup2, etc. */
41 #include <dir.h> /* for getdisk */
42 #pragma pack(0) /* dir.h does a pack(4), which isn't GCC's default */
44 #include <io.h> /* for setmode */
45 #include <dpmi.h> /* for __dpmi_xxx stuff */
46 #include <sys/farptr.h> /* for _farsetsel, _farnspokeb */
47 #include <libc/dosio.h> /* for _USE_LFN */
48 #include <conio.h> /* for cputs */
53 #include "termhooks.h"
55 #include "dispextern.h"
58 #include "character.h"
64 #include "blockinput.h"
66 #include "intervals.h"
70 /* #include <process.h> */
71 /* Damn that local process.h! Instead we can define P_WAIT ourselves. */
79 #define _dos_ds _go32_info_block.selector_for_linear_memory
83 #include "syssignal.h"
89 /* If other `malloc' than ours is used, force our `sbrk' behave like
90 Unix programs expect (resize memory blocks to keep them contiguous).
91 If `sbrk' from `ralloc.c' is NOT used, also zero-out sbrk'ed memory,
92 because that's what `gmalloc' expects to get. */
96 int _crt0_startup_flags
= _CRT0_FLAG_UNIX_SBRK
;
97 #else /* not REL_ALLOC */
98 int _crt0_startup_flags
= (_CRT0_FLAG_UNIX_SBRK
| _CRT0_FLAG_FILL_SBRK_MEMORY
);
99 #endif /* not REL_ALLOC */
100 #endif /* GNU_MALLOC */
102 #endif /* not SYSTEM_MALLOC */
121 /* ------------------------ Mouse control ---------------------------
123 * Coordinates are in screen positions and zero based.
124 * Mouse buttons are numbered from left to right and also zero based.
127 /* This used to be in termhooks.h, but mainstream Emacs code no longer
128 uses it, and it was removed... */
129 #define NUM_MOUSE_BUTTONS (5)
131 int have_mouse
; /* 0: no, 1: enabled, -1: disabled */
132 static int mouse_visible
;
134 static int mouse_last_x
;
135 static int mouse_last_y
;
137 static int mouse_button_translate
[NUM_MOUSE_BUTTONS
];
138 static int mouse_button_count
;
145 if (have_mouse
> 0 && !mouse_visible
)
147 struct tty_display_info
*tty
= CURTTY ();
150 fprintf (tty
->termscript
, "<M_ON>");
152 int86 (0x33, ®s
, ®s
);
162 if (have_mouse
> 0 && mouse_visible
)
164 struct tty_display_info
*tty
= CURTTY ();
167 fprintf (tty
->termscript
, "<M_OFF>");
169 int86 (0x33, ®s
, ®s
);
175 mouse_setup_buttons (int n_buttons
)
179 mouse_button_count
= 3;
180 mouse_button_translate
[0] = 0; /* Left */
181 mouse_button_translate
[1] = 2; /* Middle */
182 mouse_button_translate
[2] = 1; /* Right */
184 else /* two, what else? */
186 mouse_button_count
= 2;
187 mouse_button_translate
[0] = 0;
188 mouse_button_translate
[1] = 1;
192 DEFUN ("msdos-set-mouse-buttons", Fmsdos_set_mouse_buttons
, Smsdos_set_mouse_buttons
,
193 1, 1, "NSet number of mouse buttons to: ",
194 doc
: /* Set the number of mouse buttons to use by Emacs.
195 This is useful with mice that report the number of buttons inconsistently,
196 e.g., if the number of buttons is reported as 3, but Emacs only sees 2 of
197 them. This happens with wheeled mice on Windows 9X, for example. */)
199 Lisp_Object nbuttons
;
203 CHECK_NUMBER (nbuttons
);
206 xsignal2 (Qargs_out_of_range
,
207 build_string ("only 2 or 3 mouse buttons are supported"),
209 mouse_setup_buttons (n
);
214 mouse_get_xy (int *x
, int *y
)
219 int86 (0x33, ®s
, ®s
);
229 struct tty_display_info
*tty
= CURTTY ();
232 fprintf (tty
->termscript
, "<M_XY=%dx%d>", x
, y
);
234 mouse_last_x
= regs
.x
.cx
= x
* 8;
235 mouse_last_y
= regs
.x
.dx
= y
* 8;
236 int86 (0x33, ®s
, ®s
);
240 mouse_pressed (b
, xp
, yp
)
245 if (b
>= mouse_button_count
)
248 regs
.x
.bx
= mouse_button_translate
[b
];
249 int86 (0x33, ®s
, ®s
);
251 *xp
= regs
.x
.cx
/ 8, *yp
= regs
.x
.dx
/ 8;
252 return (regs
.x
.bx
!= 0);
256 mouse_released (b
, xp
, yp
)
261 if (b
>= mouse_button_count
)
264 regs
.x
.bx
= mouse_button_translate
[b
];
265 int86 (0x33, ®s
, ®s
);
267 *xp
= regs
.x
.cx
/ 8, *yp
= regs
.x
.dx
/ 8;
268 return (regs
.x
.bx
!= 0);
272 mouse_button_depressed (b
, xp
, yp
)
277 if (b
>= mouse_button_count
)
280 int86 (0x33, ®s
, ®s
);
281 if ((regs
.x
.bx
& (1 << mouse_button_translate
[b
])) != 0)
291 mouse_get_pos (f
, insist
, bar_window
, part
, x
, y
, time
)
294 Lisp_Object
*bar_window
, *x
, *y
;
295 enum scroll_bar_part
*part
;
299 Lisp_Object frame
, tail
;
301 /* Clear the mouse-moved flag for every frame on this display. */
302 FOR_EACH_FRAME (tail
, frame
)
303 XFRAME (frame
)->mouse_moved
= 0;
305 *f
= SELECTED_FRAME();
307 mouse_get_xy (&ix
, &iy
);
308 *time
= event_timestamp ();
309 *x
= make_number (mouse_last_x
= ix
);
310 *y
= make_number (mouse_last_y
= iy
);
318 mouse_get_xy (&x
, &y
);
319 SELECTED_FRAME()->mouse_moved
|= (x
!= mouse_last_x
|| y
!= mouse_last_y
);
324 /* Force the mouse driver to ``forget'' about any button clicks until
327 mouse_clear_clicks (void)
331 for (b
= 0; b
< mouse_button_count
; b
++)
333 int dummy_x
, dummy_y
;
335 (void) mouse_pressed (b
, &dummy_x
, &dummy_y
);
336 (void) mouse_released (b
, &dummy_x
, &dummy_y
);
344 struct tty_display_info
*tty
= CURTTY ();
347 fprintf (tty
->termscript
, "<M_INIT>");
350 int86 (0x33, ®s
, ®s
);
352 /* Reset the mouse last press/release info. It seems that Windows
353 doesn't do that automatically when function 21h is called, which
354 causes Emacs to ``remember'' the click that switched focus to the
355 window just before Emacs was started from that window. */
356 mouse_clear_clicks ();
360 regs
.x
.dx
= 8 * (ScreenCols () - 1);
361 int86 (0x33, ®s
, ®s
);
365 regs
.x
.dx
= 8 * (ScreenRows () - 1);
366 int86 (0x33, ®s
, ®s
);
372 /* ------------------------- Screen control ----------------------
376 static int internal_terminal
= 0;
378 #ifndef HAVE_X_WINDOWS
379 extern unsigned char ScreenAttrib
;
380 static int screen_face
;
382 static int screen_size_X
;
383 static int screen_size_Y
;
384 static int screen_size
;
386 static int current_pos_X
;
387 static int current_pos_Y
;
388 static int new_pos_X
;
389 static int new_pos_Y
;
391 static void *startup_screen_buffer
;
392 static int startup_screen_size_X
;
393 static int startup_screen_size_Y
;
394 static int startup_pos_X
;
395 static int startup_pos_Y
;
396 static unsigned char startup_screen_attrib
;
398 static clock_t startup_time
;
400 static int term_setup_done
;
402 static unsigned short outside_cursor
;
404 /* Similar to the_only_frame. */
405 struct tty_display_info the_only_display_info
;
407 /* Support for DOS/V (allows Japanese characters to be displayed on
408 standard, non-Japanese, ATs). Only supported for DJGPP v2 and later. */
410 /* Holds the address of the text-mode screen buffer. */
411 static unsigned long screen_old_address
= 0;
412 /* Segment and offset of the virtual screen. If 0, DOS/V is NOT loaded. */
413 static unsigned short screen_virtual_segment
= 0;
414 static unsigned short screen_virtual_offset
= 0;
415 /* A flag to control how to display unibyte 8-bit characters. */
416 extern int unibyte_display_via_language_environment
;
418 extern Lisp_Object Qcursor_type
;
419 extern Lisp_Object Qbar
, Qhbar
;
421 /* The screen colors of the current frame, which serve as the default
422 colors for newly-created frames. */
423 static int initial_screen_colors
[2];
425 /* Update the screen from a part of relocated DOS/V screen buffer which
426 begins at OFFSET and includes COUNT characters. */
428 dosv_refresh_virtual_screen (int offset
, int count
)
432 if (offset
< 0 || count
< 0) /* paranoia; invalid values crash DOS/V */
435 regs
.h
.ah
= 0xff; /* update relocated screen */
436 regs
.x
.es
= screen_virtual_segment
;
437 regs
.x
.di
= screen_virtual_offset
+ offset
;
439 __dpmi_int (0x10, ®s
);
443 dos_direct_output (y
, x
, buf
, len
)
448 int t0
= 2 * (x
+ y
* screen_size_X
);
449 int t
= t0
+ (int) ScreenPrimary
;
452 /* This is faster. */
453 for (_farsetsel (_dos_ds
); --len
>= 0; t
+= 2, buf
++)
454 _farnspokeb (t
, *buf
);
456 if (screen_virtual_segment
)
457 dosv_refresh_virtual_screen (t0
, l0
);
461 #ifndef HAVE_X_WINDOWS
463 static int blink_bit
= -1; /* the state of the blink bit at startup */
465 /* Enable bright background colors. */
471 /* Remember the original state of the blink/bright-background bit.
472 It is stored at 0040:0065h in the BIOS data area. */
474 blink_bit
= (_farpeekb (_dos_ds
, 0x465) & 0x20) == 0x20;
478 int86 (0x10, ®s
, ®s
);
481 /* Disable bright background colors (and enable blinking) if we found
482 the video system in that state at startup. */
484 maybe_enable_blinking (void)
492 int86 (0x10, ®s
, ®s
);
496 /* Return non-zero if the system has a VGA adapter. */
503 int86 (0x10, ®s
, ®s
);
504 if (regs
.h
.al
== 0x1a && regs
.h
.bl
> 5 && regs
.h
.bl
< 13)
509 /* Set the screen dimensions so that it can show no less than
510 ROWS x COLS frame. */
513 dos_set_window_size (rows
, cols
)
518 Lisp_Object video_mode
;
519 int video_mode_value
, have_vga
= 0;
520 int current_rows
= ScreenRows (), current_cols
= ScreenCols ();
522 if (*rows
== current_rows
&& *cols
== current_cols
)
526 have_vga
= vga_installed ();
528 /* If the user specified a special video mode for these dimensions,
530 sprintf (video_name
, "screen-dimensions-%dx%d", *rows
, *cols
);
531 video_mode
= Fsymbol_value (Fintern_soft (build_string (video_name
), Qnil
));
533 if (INTEGERP (video_mode
)
534 && (video_mode_value
= XINT (video_mode
)) > 0)
536 regs
.x
.ax
= video_mode_value
;
537 int86 (0x10, ®s
, ®s
);
541 /* Must hardware-reset the mouse, or else it won't update
542 its notion of screen dimensions for some non-standard
543 video modes. This is *painfully* slow... */
545 int86 (0x33, ®s
, ®s
);
549 /* Find one of the dimensions supported by standard EGA/VGA
550 which gives us at least the required dimensions. */
555 } std_dimension
[] = {
565 while (i
< sizeof (std_dimension
) / sizeof (std_dimension
[0]))
567 if (std_dimension
[i
].need_vga
<= have_vga
568 && std_dimension
[i
].rows
>= *rows
)
570 if (std_dimension
[i
].rows
!= current_rows
571 || *cols
!= current_cols
)
572 _set_screen_lines (std_dimension
[i
].rows
);
586 /* Tell the caller what dimensions have been REALLY set. */
587 *rows
= ScreenRows ();
588 *cols
= ScreenCols ();
590 /* Update Emacs' notion of screen dimensions. */
591 screen_size_X
= *cols
;
592 screen_size_Y
= *rows
;
593 screen_size
= *cols
* *rows
;
595 /* If the dimensions changed, the mouse highlight info is invalid. */
596 if (current_rows
!= *rows
|| current_cols
!= *cols
)
598 struct frame
*f
= SELECTED_FRAME();
599 struct tty_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
600 Lisp_Object window
= dpyinfo
->mouse_face_window
;
602 if (! NILP (window
) && XFRAME (XWINDOW (window
)->frame
) == f
)
604 dpyinfo
->mouse_face_beg_row
= dpyinfo
->mouse_face_beg_col
= -1;
605 dpyinfo
->mouse_face_end_row
= dpyinfo
->mouse_face_end_col
= -1;
606 dpyinfo
->mouse_face_window
= Qnil
;
610 /* Enable bright background colors. */
613 /* FIXME: I'm not sure the above will run at all on DOS/V. But let's
614 be defensive anyway. */
615 if (screen_virtual_segment
)
616 dosv_refresh_virtual_screen (0, *cols
* *rows
);
619 /* If we write a character in the position where the mouse is,
620 the mouse cursor may need to be refreshed. */
630 mouse_get_xy (&x
, &y
);
631 if (y
!= new_pos_Y
|| x
< new_pos_X
)
637 #define DEFAULT_CURSOR_START (-1)
638 #define DEFAULT_CURSOR_WIDTH (-1)
639 #define BOX_CURSOR_WIDTH (-32)
641 /* Set cursor to begin at scan line START_LINE in the character cell
642 and extend for WIDTH scan lines. Scan lines are counted from top
643 of the character cell, starting from zero. */
645 msdos_set_cursor_shape (struct frame
*f
, int start_line
, int width
)
647 unsigned desired_cursor
;
649 int max_line
, top_line
, bot_line
;
650 struct tty_display_info
*tty
= FRAME_TTY (f
);
652 /* Avoid the costly BIOS call if F isn't the currently selected
653 frame. Allow for NULL as unconditionally meaning the selected
655 if (f
&& f
!= SELECTED_FRAME())
659 fprintf (tty
->termscript
, "\nCURSOR SHAPE=(%d,%d)", start_line
, width
);
661 /* The character cell size in scan lines is stored at 40:85 in the
663 max_line
= _farpeekw (_dos_ds
, 0x485) - 1;
666 default: /* this relies on CGA cursor emulation being ON! */
683 if (width
== BOX_CURSOR_WIDTH
)
688 else if (start_line
!= DEFAULT_CURSOR_START
)
690 top_line
= start_line
;
691 bot_line
= top_line
- width
- 1;
693 else if (width
!= DEFAULT_CURSOR_WIDTH
)
696 bot_line
= -1 - width
;
699 top_line
= bot_line
+ 1;
703 /* [31, 0] seems to DTRT for all screen sizes. */
707 else /* WIDTH is positive */
709 if (start_line
!= DEFAULT_CURSOR_START
)
710 bot_line
= start_line
;
711 top_line
= bot_line
- (width
- 1);
714 /* If the current cursor shape is already what they want, we are
716 desired_cursor
= ((top_line
& 0x1f) << 8) | (bot_line
& 0x1f);
717 if (desired_cursor
== _farpeekw (_dos_ds
, 0x460))
721 regs
.x
.cx
= desired_cursor
;
722 __dpmi_int (0x10, ®s
);
726 IT_set_cursor_type (struct frame
*f
, Lisp_Object cursor_type
)
728 if (EQ (cursor_type
, Qbar
) || EQ (cursor_type
, Qhbar
))
730 /* Just BAR means the normal EGA/VGA cursor. */
731 msdos_set_cursor_shape (f
, DEFAULT_CURSOR_START
, DEFAULT_CURSOR_WIDTH
);
733 else if (CONSP (cursor_type
)
734 && (EQ (XCAR (cursor_type
), Qbar
)
735 || EQ (XCAR (cursor_type
), Qhbar
)))
737 Lisp_Object bar_parms
= XCDR (cursor_type
);
740 if (INTEGERP (bar_parms
))
742 /* Feature: negative WIDTH means cursor at the top
743 of the character cell, zero means invisible cursor. */
744 width
= XINT (bar_parms
);
745 msdos_set_cursor_shape (f
, width
>= 0 ? DEFAULT_CURSOR_START
: 0,
748 else if (CONSP (bar_parms
)
749 && INTEGERP (XCAR (bar_parms
))
750 && INTEGERP (XCDR (bar_parms
)))
752 int start_line
= XINT (XCDR (bar_parms
));
754 width
= XINT (XCAR (bar_parms
));
755 msdos_set_cursor_shape (f
, start_line
, width
);
760 /* Treat anything unknown as "box cursor". This includes nil, so
761 that a frame which doesn't specify a cursor type gets a box,
762 which is the default in Emacs. */
763 msdos_set_cursor_shape (f
, 0, BOX_CURSOR_WIDTH
);
768 IT_ring_bell (struct frame
*f
)
777 union REGS inregs
, outregs
;
780 intdos (&inregs
, &outregs
);
784 /* Given a face id FACE, extract the face parameters to be used for
785 display until the face changes. The face parameters (actually, its
786 color) are used to construct the video attribute byte for each
787 glyph during the construction of the buffer that is then blitted to
790 IT_set_face (int face
)
792 struct frame
*sf
= SELECTED_FRAME();
793 struct face
*fp
= FACE_FROM_ID (sf
, face
);
794 struct face
*dfp
= FACE_FROM_ID (sf
, DEFAULT_FACE_ID
);
795 unsigned long fg
, bg
, dflt_fg
, dflt_bg
;
796 struct tty_display_info
*tty
= FRAME_TTY (sf
);
801 /* The default face for the frame should always be realized and
809 dflt_fg
= dfp
->foreground
;
810 dflt_bg
= dfp
->background
;
812 /* Don't use invalid colors. In particular, FACE_TTY_DEFAULT_* colors
813 mean use the colors of the default face. Note that we assume all
814 16 colors to be available for the background, since Emacs switches
815 on this mode (and loses the blinking attribute) at startup. */
816 if (fg
== FACE_TTY_DEFAULT_COLOR
|| fg
== FACE_TTY_DEFAULT_FG_COLOR
)
817 fg
= FRAME_FOREGROUND_PIXEL (sf
);
818 else if (fg
== FACE_TTY_DEFAULT_BG_COLOR
)
819 fg
= FRAME_BACKGROUND_PIXEL (sf
);
820 if (bg
== FACE_TTY_DEFAULT_COLOR
|| bg
== FACE_TTY_DEFAULT_BG_COLOR
)
821 bg
= FRAME_BACKGROUND_PIXEL (sf
);
822 else if (bg
== FACE_TTY_DEFAULT_FG_COLOR
)
823 bg
= FRAME_FOREGROUND_PIXEL (sf
);
825 /* Make sure highlighted lines really stand out, come what may. */
826 if (fp
->tty_reverse_p
&& (fg
== dflt_fg
&& bg
== dflt_bg
))
828 unsigned long tem
= fg
;
833 /* If the user requested inverse video, obey. */
836 unsigned long tem2
= fg
;
842 fprintf (tty
->termscript
, "<FACE %d: %d/%d[FG:%d/BG:%d]>", face
,
843 fp
->foreground
, fp
->background
, fg
, bg
);
844 if (fg
>= 0 && fg
< 16)
846 ScreenAttrib
&= 0xf0;
849 if (bg
>= 0 && bg
< 16)
851 ScreenAttrib
&= 0x0f;
852 ScreenAttrib
|= ((bg
& 0x0f) << 4);
856 /* According to RBIL (INTERRUP.A, V-1000), 160 is the maximum possible
857 width of a DOS display in any known text mode. We multiply by 2 to
858 accomodate the screen attribute byte. */
859 #define MAX_SCREEN_BUF 160*2
861 Lisp_Object Vdos_unsupported_char_glyph
;
862 extern unsigned char *encode_terminal_code (struct glyph
*, int,
863 struct coding_system
*);
865 IT_write_glyphs (struct frame
*f
, struct glyph
*str
, int str_len
)
867 unsigned char screen_buf
[MAX_SCREEN_BUF
], *screen_bp
, *bp
;
868 int offset
= 2 * (new_pos_X
+ screen_size_X
* new_pos_Y
);
869 register int sl
= str_len
;
870 struct tty_display_info
*tty
= FRAME_TTY (f
);
872 unsigned char *conversion_buffer
;
874 /* Do we need to consider conversion of unibyte characters to
876 int convert_unibyte_characters
877 = (NILP (current_buffer
->enable_multibyte_characters
)
878 && unibyte_display_via_language_environment
);
880 /* If terminal_coding does any conversion, use it, otherwise use
881 safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here
882 because it always returns 1 if terminal_coding.src_multibyte is 1. */
883 struct coding_system
*coding
= FRAME_TERMINAL_CODING (f
);
885 if (!(coding
->common_flags
& CODING_REQUIRE_ENCODING_MASK
))
886 coding
= &safe_terminal_coding
;
888 if (str_len
<= 0) return;
890 sf
= SELECTED_FRAME();
892 /* Since faces get cached and uncached behind our back, we can't
893 rely on their indices in the cache being consistent across
894 invocations. So always reset the screen face to the default
895 face of the frame, before writing glyphs, and let the glyphs
896 set the right face if it's different from the default. */
897 IT_set_face (DEFAULT_FACE_ID
);
899 /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at
901 coding
->mode
&= ~CODING_MODE_LAST_BLOCK
;
902 screen_bp
= &screen_buf
[0];
908 /* If the face of this glyph is different from the current
909 screen face, update the screen attribute byte. */
911 if (cf
!= screen_face
)
912 IT_set_face (cf
); /* handles invalid faces gracefully */
914 /* Identify a run of glyphs with the same face. */
915 for (n
= 1; n
< sl
; ++n
)
916 if (str
[n
].face_id
!= cf
)
920 /* This is the last glyph. */
921 coding
->mode
|= CODING_MODE_LAST_BLOCK
;
923 conversion_buffer
= encode_terminal_code (str
, n
, coding
);
924 if (coding
->produced
> 0)
926 /* Copy the encoded bytes to the screen buffer. */
927 for (bp
= conversion_buffer
; coding
->produced
--; bp
++)
929 /* Paranoia: discard bytes that would overrun the end of
930 the screen buffer. */
931 if (screen_bp
- screen_buf
<= MAX_SCREEN_BUF
- 2)
933 *screen_bp
++ = (unsigned char)*bp
;
934 *screen_bp
++ = ScreenAttrib
;
937 fputc (*bp
, tty
->termscript
);
940 /* Update STR and its remaining length. */
945 /* Dump whatever we have in the screen buffer. */
947 dosmemput (screen_buf
, screen_bp
- screen_buf
, (int)ScreenPrimary
+ offset
);
948 if (screen_virtual_segment
)
949 dosv_refresh_virtual_screen (offset
, (screen_bp
- screen_buf
) / 2);
950 new_pos_X
+= (screen_bp
- screen_buf
) / 2;
953 /************************************************************************
954 Mouse Highlight (and friends..)
955 ************************************************************************/
957 /* Last window where we saw the mouse. Used by mouse-autoselect-window. */
958 static Lisp_Object last_mouse_window
;
960 static int mouse_preempted
= 0; /* non-zero when XMenu gobbles mouse events */
962 /* Set the mouse pointer shape according to whether it is in the
963 area where the mouse highlight is in effect. */
965 IT_set_mouse_pointer (int mode
)
967 /* A no-op for now. DOS text-mode mouse pointer doesn't offer too
968 many possibilities to change its shape, and the available
969 functionality pretty much sucks (e.g., almost every reasonable
970 shape will conceal the character it is on). Since the color of
971 the pointer changes in the highlighted area, it is not clear to
972 me whether anything else is required, anyway. */
975 /* Display the active region described by mouse_face_*
976 in its mouse-face if HL > 0, in its normal face if HL = 0. */
978 show_mouse_face (struct tty_display_info
*dpyinfo
, int hl
)
980 struct window
*w
= XWINDOW (dpyinfo
->mouse_face_window
);
981 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
984 struct tty_display_info
*tty
= FRAME_TTY (f
);
987 /* If window is in the process of being destroyed, don't bother
989 if (w
->current_matrix
== NULL
)
990 goto set_cursor_shape
;
992 /* Recognize when we are called to operate on rows that don't exist
993 anymore. This can happen when a window is split. */
994 if (dpyinfo
->mouse_face_end_row
>= w
->current_matrix
->nrows
)
995 goto set_cursor_shape
;
997 /* There's no sense to do anything if the mouse face isn't realized. */
1000 if (dpyinfo
->mouse_face_hidden
)
1001 goto set_cursor_shape
;
1003 fp
= FACE_FROM_ID (SELECTED_FRAME(), dpyinfo
->mouse_face_face_id
);
1005 goto set_cursor_shape
;
1008 /* Note that mouse_face_beg_row etc. are window relative. */
1009 for (i
= dpyinfo
->mouse_face_beg_row
;
1010 i
<= dpyinfo
->mouse_face_end_row
;
1013 int start_hpos
, end_hpos
;
1014 struct glyph_row
*row
= MATRIX_ROW (w
->current_matrix
, i
);
1016 /* Don't do anything if row doesn't have valid contents. */
1017 if (!row
->enabled_p
)
1020 /* For all but the first row, the highlight starts at column 0. */
1021 if (i
== dpyinfo
->mouse_face_beg_row
)
1022 start_hpos
= dpyinfo
->mouse_face_beg_col
;
1026 if (i
== dpyinfo
->mouse_face_end_row
)
1027 end_hpos
= dpyinfo
->mouse_face_end_col
;
1029 end_hpos
= row
->used
[TEXT_AREA
];
1031 if (end_hpos
<= start_hpos
)
1033 /* Record that some glyphs of this row are displayed in
1035 row
->mouse_face_p
= hl
> 0;
1038 int vpos
= row
->y
+ WINDOW_TOP_EDGE_Y (w
);
1039 int kstart
= start_hpos
+ WINDOW_LEFT_EDGE_X (w
);
1040 int nglyphs
= end_hpos
- start_hpos
;
1041 int offset
= ScreenPrimary
+ 2*(vpos
*screen_size_X
+ kstart
) + 1;
1042 int start_offset
= offset
;
1044 if (tty
->termscript
)
1045 fprintf (tty
->termscript
, "\n<MH+ %d-%d:%d>",
1046 kstart
, kstart
+ nglyphs
- 1, vpos
);
1049 IT_set_face (dpyinfo
->mouse_face_face_id
);
1050 /* Since we are going to change only the _colors_ of the
1051 displayed text, there's no need to go through all the
1052 pain of generating and encoding the text from the glyphs.
1053 Instead, we simply poke the attribute byte of each
1054 affected position in video memory with the colors
1055 computed by IT_set_face! */
1056 _farsetsel (_dos_ds
);
1059 _farnspokeb (offset
, ScreenAttrib
);
1062 if (screen_virtual_segment
)
1063 dosv_refresh_virtual_screen (start_offset
, end_hpos
- start_hpos
);
1068 /* We are removing a previously-drawn mouse highlight. The
1069 safest way to do so is to redraw the glyphs anew, since
1070 all kinds of faces and display tables could have changed
1072 int nglyphs
= end_hpos
- start_hpos
;
1073 int save_x
= new_pos_X
, save_y
= new_pos_Y
;
1075 if (end_hpos
>= row
->used
[TEXT_AREA
])
1076 nglyphs
= row
->used
[TEXT_AREA
] - start_hpos
;
1078 /* IT_write_glyphs writes at cursor position, so we need to
1079 temporarily move cursor coordinates to the beginning of
1080 the highlight region. */
1081 new_pos_X
= start_hpos
+ WINDOW_LEFT_EDGE_X (w
);
1082 new_pos_Y
= row
->y
+ WINDOW_TOP_EDGE_Y (w
);
1084 if (tty
->termscript
)
1085 fprintf (tty
->termscript
, "<MH- %d-%d:%d>",
1086 new_pos_X
, new_pos_X
+ nglyphs
- 1, new_pos_Y
);
1087 IT_write_glyphs (f
, row
->glyphs
[TEXT_AREA
] + start_hpos
, nglyphs
);
1088 if (tty
->termscript
)
1089 fputs ("\n", tty
->termscript
);
1096 /* Change the mouse pointer shape. */
1097 IT_set_mouse_pointer (hl
);
1100 /* Clear out the mouse-highlighted active region.
1101 Redraw it un-highlighted first. */
1103 clear_mouse_face (struct tty_display_info
*dpyinfo
)
1105 if (!dpyinfo
->mouse_face_hidden
&& ! NILP (dpyinfo
->mouse_face_window
))
1106 show_mouse_face (dpyinfo
, 0);
1108 dpyinfo
->mouse_face_beg_row
= dpyinfo
->mouse_face_beg_col
= -1;
1109 dpyinfo
->mouse_face_end_row
= dpyinfo
->mouse_face_end_col
= -1;
1110 dpyinfo
->mouse_face_window
= Qnil
;
1113 /* Find the glyph matrix position of buffer position POS in window W.
1114 *HPOS and *VPOS are set to the positions found. W's current glyphs
1115 must be up to date. If POS is above window start return (0, 0).
1116 If POS is after end of W, return end of last line in W. */
1118 fast_find_position (struct window
*w
, int pos
, int *hpos
, int *vpos
)
1120 int i
, lastcol
, line_start_position
, maybe_next_line_p
= 0;
1121 int yb
= window_text_bottom_y (w
);
1122 struct glyph_row
*row
= MATRIX_ROW (w
->current_matrix
, 0), *best_row
= row
;
1126 if (row
->used
[TEXT_AREA
])
1127 line_start_position
= row
->glyphs
[TEXT_AREA
]->charpos
;
1129 line_start_position
= 0;
1131 if (line_start_position
> pos
)
1133 /* If the position sought is the end of the buffer,
1134 don't include the blank lines at the bottom of the window. */
1135 else if (line_start_position
== pos
1136 && pos
== BUF_ZV (XBUFFER (w
->buffer
)))
1138 maybe_next_line_p
= 1;
1141 else if (line_start_position
> 0)
1144 /* Don't overstep the last matrix row, lest we get into the
1145 never-never land... */
1146 if (row
->y
+ 1 >= yb
)
1152 /* Find the right column within BEST_ROW. */
1155 for (i
= 0; i
< row
->used
[TEXT_AREA
]; i
++)
1157 struct glyph
*glyph
= row
->glyphs
[TEXT_AREA
] + i
;
1160 charpos
= glyph
->charpos
;
1167 else if (charpos
> pos
)
1169 else if (charpos
> 0)
1173 /* If we're looking for the end of the buffer,
1174 and we didn't find it in the line we scanned,
1175 use the start of the following line. */
1176 if (maybe_next_line_p
)
1183 *hpos
= lastcol
+ 1;
1187 /* Take proper action when mouse has moved to the mode or top line of
1188 window W, x-position X. MODE_LINE_P non-zero means mouse is on the
1189 mode line. X is relative to the start of the text display area of
1190 W, so the width of fringes and scroll bars must be subtracted
1191 to get a position relative to the start of the mode line. */
1193 IT_note_mode_line_highlight (struct window
*w
, int x
, int mode_line_p
)
1195 struct frame
*f
= XFRAME (w
->frame
);
1196 struct tty_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
1197 struct glyph_row
*row
;
1200 row
= MATRIX_MODE_LINE_ROW (w
->current_matrix
);
1202 row
= MATRIX_HEADER_LINE_ROW (w
->current_matrix
);
1206 extern Lisp_Object Qhelp_echo
;
1207 struct glyph
*glyph
, *end
;
1208 Lisp_Object help
, map
;
1210 /* Find the glyph under X. */
1211 glyph
= (row
->glyphs
[TEXT_AREA
]
1213 /* in case someone implements scroll bars some day... */
1214 - WINDOW_LEFT_SCROLL_BAR_AREA_WIDTH (w
));
1215 end
= glyph
+ row
->used
[TEXT_AREA
];
1217 && STRINGP (glyph
->object
)
1218 && STRING_INTERVALS (glyph
->object
)
1219 && glyph
->charpos
>= 0
1220 && glyph
->charpos
< SCHARS (glyph
->object
))
1222 /* If we're on a string with `help-echo' text property,
1223 arrange for the help to be displayed. This is done by
1224 setting the global variable help_echo to the help string. */
1225 help
= Fget_text_property (make_number (glyph
->charpos
),
1226 Qhelp_echo
, glyph
->object
);
1229 help_echo_string
= help
;
1230 XSETWINDOW (help_echo_window
, w
);
1231 help_echo_object
= glyph
->object
;
1232 help_echo_pos
= glyph
->charpos
;
1238 /* Take proper action when the mouse has moved to position X, Y on
1239 frame F as regards highlighting characters that have mouse-face
1240 properties. Also de-highlighting chars where the mouse was before.
1241 X and Y can be negative or out of range. */
1243 IT_note_mouse_highlight (struct frame
*f
, int x
, int y
)
1245 struct tty_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
1246 enum window_part part
= ON_NOTHING
;
1250 /* When a menu is active, don't highlight because this looks odd. */
1251 if (mouse_preempted
)
1254 if (NILP (Vmouse_highlight
)
1255 || !f
->glyphs_initialized_p
)
1258 dpyinfo
->mouse_face_mouse_x
= x
;
1259 dpyinfo
->mouse_face_mouse_y
= y
;
1260 dpyinfo
->mouse_face_mouse_frame
= f
;
1262 if (dpyinfo
->mouse_face_defer
)
1267 dpyinfo
->mouse_face_deferred_gc
= 1;
1271 /* Which window is that in? */
1272 window
= window_from_coordinates (f
, x
, y
, &part
, &x
, &y
, 0);
1274 /* If we were displaying active text in another window, clear that. */
1275 if (! EQ (window
, dpyinfo
->mouse_face_window
))
1276 clear_mouse_face (dpyinfo
);
1278 /* Not on a window -> return. */
1279 if (!WINDOWP (window
))
1282 /* Convert to window-relative coordinates. */
1283 w
= XWINDOW (window
);
1285 if (part
== ON_MODE_LINE
|| part
== ON_HEADER_LINE
)
1287 /* Mouse is on the mode or top line. */
1288 IT_note_mode_line_highlight (w
, x
, part
== ON_MODE_LINE
);
1292 IT_set_mouse_pointer (0);
1294 /* Are we in a window whose display is up to date?
1295 And verify the buffer's text has not changed. */
1297 && EQ (w
->window_end_valid
, w
->buffer
)
1298 && XFASTINT (w
->last_modified
) == BUF_MODIFF (XBUFFER (w
->buffer
))
1299 && (XFASTINT (w
->last_overlay_modified
)
1300 == BUF_OVERLAY_MODIFF (XBUFFER (w
->buffer
))))
1302 int pos
, i
, nrows
= w
->current_matrix
->nrows
;
1303 struct glyph_row
*row
;
1304 struct glyph
*glyph
;
1306 /* Find the glyph under X/Y. */
1308 if (y
>= 0 && y
< nrows
)
1310 row
= MATRIX_ROW (w
->current_matrix
, y
);
1311 /* Give up if some row before the one we are looking for is
1313 for (i
= 0; i
<= y
; i
++)
1314 if (!MATRIX_ROW (w
->current_matrix
, i
)->enabled_p
)
1316 if (i
> y
/* all rows upto and including the one at Y are enabled */
1317 && row
->displays_text_p
1318 && x
< window_box_width (w
, TEXT_AREA
))
1320 glyph
= row
->glyphs
[TEXT_AREA
];
1321 if (x
>= row
->used
[TEXT_AREA
])
1326 if (!BUFFERP (glyph
->object
))
1332 /* Clear mouse face if X/Y not over text. */
1335 clear_mouse_face (dpyinfo
);
1339 if (!BUFFERP (glyph
->object
))
1341 pos
= glyph
->charpos
;
1343 /* Check for mouse-face and help-echo. */
1345 extern Lisp_Object Qmouse_face
;
1346 Lisp_Object mouse_face
, overlay
, position
, *overlay_vec
;
1347 int noverlays
, obegv
, ozv
;
1348 struct buffer
*obuf
;
1350 /* If we get an out-of-range value, return now; avoid an error. */
1351 if (pos
> BUF_Z (XBUFFER (w
->buffer
)))
1354 /* Make the window's buffer temporarily current for
1355 overlays_at and compute_char_face. */
1356 obuf
= current_buffer
;
1357 current_buffer
= XBUFFER (w
->buffer
);
1363 /* Is this char mouse-active or does it have help-echo? */
1364 XSETINT (position
, pos
);
1366 /* Put all the overlays we want in a vector in overlay_vec. */
1367 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, NULL
, 0);
1368 /* Sort overlays into increasing priority order. */
1369 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
1371 /* Check mouse-face highlighting. */
1372 if (! (EQ (window
, dpyinfo
->mouse_face_window
)
1373 && y
>= dpyinfo
->mouse_face_beg_row
1374 && y
<= dpyinfo
->mouse_face_end_row
1375 && (y
> dpyinfo
->mouse_face_beg_row
1376 || x
>= dpyinfo
->mouse_face_beg_col
)
1377 && (y
< dpyinfo
->mouse_face_end_row
1378 || x
< dpyinfo
->mouse_face_end_col
1379 || dpyinfo
->mouse_face_past_end
)))
1381 /* Clear the display of the old active region, if any. */
1382 clear_mouse_face (dpyinfo
);
1384 /* Find highest priority overlay that has a mouse-face prop. */
1386 for (i
= noverlays
- 1; i
>= 0; --i
)
1388 mouse_face
= Foverlay_get (overlay_vec
[i
], Qmouse_face
);
1389 if (!NILP (mouse_face
))
1391 overlay
= overlay_vec
[i
];
1396 /* If no overlay applies, get a text property. */
1398 mouse_face
= Fget_text_property (position
, Qmouse_face
,
1401 /* Handle the overlay case. */
1402 if (! NILP (overlay
))
1404 /* Find the range of text around this char that
1405 should be active. */
1406 Lisp_Object before
, after
;
1409 before
= Foverlay_start (overlay
);
1410 after
= Foverlay_end (overlay
);
1411 /* Record this as the current active region. */
1412 fast_find_position (w
, XFASTINT (before
),
1413 &dpyinfo
->mouse_face_beg_col
,
1414 &dpyinfo
->mouse_face_beg_row
);
1415 dpyinfo
->mouse_face_past_end
1416 = !fast_find_position (w
, XFASTINT (after
),
1417 &dpyinfo
->mouse_face_end_col
,
1418 &dpyinfo
->mouse_face_end_row
);
1419 dpyinfo
->mouse_face_window
= window
;
1420 dpyinfo
->mouse_face_face_id
1421 = face_at_buffer_position (w
, pos
, 0, 0,
1423 !dpyinfo
->mouse_face_hidden
,
1426 /* Display it as active. */
1427 show_mouse_face (dpyinfo
, 1);
1429 /* Handle the text property case. */
1430 else if (! NILP (mouse_face
))
1432 /* Find the range of text around this char that
1433 should be active. */
1434 Lisp_Object before
, after
, beginning
, end
;
1437 beginning
= Fmarker_position (w
->start
);
1438 XSETINT (end
, (BUF_Z (XBUFFER (w
->buffer
))
1439 - XFASTINT (w
->window_end_pos
)));
1441 = Fprevious_single_property_change (make_number (pos
+ 1),
1443 w
->buffer
, beginning
);
1445 = Fnext_single_property_change (position
, Qmouse_face
,
1447 /* Record this as the current active region. */
1448 fast_find_position (w
, XFASTINT (before
),
1449 &dpyinfo
->mouse_face_beg_col
,
1450 &dpyinfo
->mouse_face_beg_row
);
1451 dpyinfo
->mouse_face_past_end
1452 = !fast_find_position (w
, XFASTINT (after
),
1453 &dpyinfo
->mouse_face_end_col
,
1454 &dpyinfo
->mouse_face_end_row
);
1455 dpyinfo
->mouse_face_window
= window
;
1456 dpyinfo
->mouse_face_face_id
1457 = face_at_buffer_position (w
, pos
, 0, 0,
1459 !dpyinfo
->mouse_face_hidden
,
1462 /* Display it as active. */
1463 show_mouse_face (dpyinfo
, 1);
1467 /* Look for a `help-echo' property. */
1470 extern Lisp_Object Qhelp_echo
;
1472 /* Check overlays first. */
1474 for (i
= noverlays
- 1; i
>= 0 && NILP (help
); --i
)
1476 overlay
= overlay_vec
[i
];
1477 help
= Foverlay_get (overlay
, Qhelp_echo
);
1482 help_echo_string
= help
;
1483 help_echo_window
= window
;
1484 help_echo_object
= overlay
;
1485 help_echo_pos
= pos
;
1487 /* Try text properties. */
1488 else if (NILP (help
)
1489 && ((STRINGP (glyph
->object
)
1490 && glyph
->charpos
>= 0
1491 && glyph
->charpos
< SCHARS (glyph
->object
))
1492 || (BUFFERP (glyph
->object
)
1493 && glyph
->charpos
>= BEGV
1494 && glyph
->charpos
< ZV
)))
1496 help
= Fget_text_property (make_number (glyph
->charpos
),
1497 Qhelp_echo
, glyph
->object
);
1500 help_echo_string
= help
;
1501 help_echo_window
= window
;
1502 help_echo_object
= glyph
->object
;
1503 help_echo_pos
= glyph
->charpos
;
1510 current_buffer
= obuf
;
1516 IT_clear_end_of_line (struct frame
*f
, int first_unused
)
1519 int i
, j
, offset
= 2 * (new_pos_X
+ screen_size_X
* new_pos_Y
);
1520 extern int fatal_error_in_progress
;
1521 struct tty_display_info
*tty
= FRAME_TTY (f
);
1523 if (new_pos_X
>= first_unused
|| fatal_error_in_progress
)
1527 i
= (j
= first_unused
- new_pos_X
) * 2;
1528 if (tty
->termscript
)
1529 fprintf (tty
->termscript
, "<CLR:EOL[%d..%d)>", new_pos_X
, first_unused
);
1530 spaces
= sp
= alloca (i
);
1535 *sp
++ = ScreenAttrib
;
1539 dosmemput (spaces
, i
, (int)ScreenPrimary
+ offset
);
1540 if (screen_virtual_segment
)
1541 dosv_refresh_virtual_screen (offset
, i
/ 2);
1543 /* clear_end_of_line_raw on term.c leaves the cursor at first_unused.
1544 Let's follow their lead, in case someone relies on this. */
1545 new_pos_X
= first_unused
;
1549 IT_clear_screen (struct frame
*f
)
1551 struct tty_display_info
*tty
= FRAME_TTY (f
);
1553 if (tty
->termscript
)
1554 fprintf (tty
->termscript
, "<CLR:SCR>");
1555 /* We are sometimes called (from clear_garbaged_frames) when a new
1556 frame is being created, but its faces are not yet realized. In
1557 such a case we cannot call IT_set_face, since it will fail to find
1558 any valid faces and will abort. Instead, use the initial screen
1559 colors; that should mimic what a Unix tty does, which simply clears
1560 the screen with whatever default colors are in use. */
1561 if (FACE_FROM_ID (SELECTED_FRAME (), DEFAULT_FACE_ID
) == NULL
)
1562 ScreenAttrib
= (initial_screen_colors
[0] << 4) | initial_screen_colors
[1];
1567 if (screen_virtual_segment
)
1568 dosv_refresh_virtual_screen (0, screen_size
);
1569 new_pos_X
= new_pos_Y
= 0;
1573 IT_clear_to_end (struct frame
*f
)
1575 struct tty_display_info
*tty
= FRAME_TTY (f
);
1577 if (tty
->termscript
)
1578 fprintf (tty
->termscript
, "<CLR:EOS>");
1580 while (new_pos_Y
< screen_size_Y
) {
1582 IT_clear_end_of_line (f
, screen_size_X
);
1588 IT_cursor_to (struct frame
*f
, int y
, int x
)
1590 struct tty_display_info
*tty
= FRAME_TTY (f
);
1592 if (tty
->termscript
)
1593 fprintf (tty
->termscript
, "\n<XY=%dx%d>", x
, y
);
1598 static int cursor_cleared
;
1601 IT_display_cursor (int on
)
1603 struct tty_display_info
*tty
= CURTTY ();
1605 if (on
&& cursor_cleared
)
1607 ScreenSetCursor (current_pos_Y
, current_pos_X
);
1609 if (tty
->termscript
)
1610 fprintf (tty
->termscript
, "\nCURSOR ON");
1612 else if (!on
&& !cursor_cleared
)
1614 ScreenSetCursor (-1, -1);
1616 if (tty
->termscript
)
1617 fprintf (tty
->termscript
, "\nCURSOR OFF");
1621 /* Emacs calls cursor-movement functions a lot when it updates the
1622 display (probably a legacy of old terminals where you cannot
1623 update a screen line without first moving the cursor there).
1624 However, cursor movement is expensive on MSDOS (it calls a slow
1625 BIOS function and requires 2 mode switches), while actual screen
1626 updates access the video memory directly and don't depend on
1627 cursor position. To avoid slowing down the redisplay, we cheat:
1628 all functions that move the cursor only set internal variables
1629 which record the cursor position, whereas the cursor is only
1630 moved to its final position whenever screen update is complete.
1632 `IT_cmgoto' is called from the keyboard reading loop and when the
1633 frame update is complete. This means that we are ready for user
1634 input, so we update the cursor position to show where the point is,
1635 and also make the mouse pointer visible.
1637 Special treatment is required when the cursor is in the echo area,
1638 to put the cursor at the end of the text displayed there. */
1641 IT_cmgoto (FRAME_PTR f
)
1643 /* Only set the cursor to where it should be if the display is
1644 already in sync with the window contents. */
1645 int update_cursor_pos
= 1; /* MODIFF == unchanged_modified; */
1646 struct tty_display_info
*tty
= FRAME_TTY (f
);
1648 /* FIXME: This needs to be rewritten for the new redisplay, or
1651 static int previous_pos_X
= -1;
1653 update_cursor_pos
= 1; /* temporary!!! */
1655 /* If the display is in sync, forget any previous knowledge about
1656 cursor position. This is primarily for unexpected events like
1657 C-g in the minibuffer. */
1658 if (update_cursor_pos
&& previous_pos_X
>= 0)
1659 previous_pos_X
= -1;
1660 /* If we are in the echo area, put the cursor at the
1661 end of the echo area message. */
1662 if (!update_cursor_pos
1663 && WINDOW_TOP_EDGE_LINE (XWINDOW (FRAME_MINIBUF_WINDOW (f
))) <= new_pos_Y
)
1665 int tem_X
= current_pos_X
, dummy
;
1667 if (echo_area_glyphs
)
1669 tem_X
= echo_area_glyphs_length
;
1670 /* Save current cursor position, to be restored after the
1671 echo area message is erased. Only remember one level
1672 of previous cursor position. */
1673 if (previous_pos_X
== -1)
1674 ScreenGetCursor (&dummy
, &previous_pos_X
);
1676 else if (previous_pos_X
>= 0)
1678 /* We wind up here after the echo area message is erased.
1679 Restore the cursor position we remembered above. */
1680 tem_X
= previous_pos_X
;
1681 previous_pos_X
= -1;
1684 if (current_pos_X
!= tem_X
)
1687 update_cursor_pos
= 1;
1692 if (update_cursor_pos
1693 && (current_pos_X
!= new_pos_X
|| current_pos_Y
!= new_pos_Y
))
1695 ScreenSetCursor (current_pos_Y
= new_pos_Y
, current_pos_X
= new_pos_X
);
1696 if (tty
->termscript
)
1697 fprintf (tty
->termscript
, "\n<CURSOR:%dx%d>", current_pos_X
, current_pos_Y
);
1700 /* Maybe cursor is invisible, so make it visible. */
1701 IT_display_cursor (1);
1703 /* Mouse pointer should be always visible if we are waiting for
1710 IT_update_begin (struct frame
*f
)
1712 struct tty_display_info
*display_info
= FRAME_X_DISPLAY_INFO (f
);
1713 struct frame
*mouse_face_frame
= display_info
->mouse_face_mouse_frame
;
1715 if (display_info
->termscript
)
1716 fprintf (display_info
->termscript
, "\n\n<UPDATE_BEGIN");
1720 if (f
&& f
== mouse_face_frame
)
1722 /* Don't do highlighting for mouse motion during the update. */
1723 display_info
->mouse_face_defer
= 1;
1725 /* If F needs to be redrawn, simply forget about any prior mouse
1727 if (FRAME_GARBAGED_P (f
))
1728 display_info
->mouse_face_window
= Qnil
;
1730 /* Can we tell that this update does not affect the window
1731 where the mouse highlight is? If so, no need to turn off.
1732 Likewise, don't do anything if none of the enabled rows
1733 contains glyphs highlighted in mouse face. */
1734 if (!NILP (display_info
->mouse_face_window
)
1735 && WINDOWP (display_info
->mouse_face_window
))
1737 struct window
*w
= XWINDOW (display_info
->mouse_face_window
);
1740 /* If the mouse highlight is in the window that was deleted
1741 (e.g., if it was popped by completion), clear highlight
1743 if (NILP (w
->buffer
))
1744 display_info
->mouse_face_window
= Qnil
;
1747 for (i
= 0; i
< w
->desired_matrix
->nrows
; ++i
)
1748 if (MATRIX_ROW_ENABLED_P (w
->desired_matrix
, i
)
1749 && MATRIX_ROW (w
->current_matrix
, i
)->mouse_face_p
)
1753 if (NILP (w
->buffer
) || i
< w
->desired_matrix
->nrows
)
1754 clear_mouse_face (display_info
);
1757 else if (mouse_face_frame
&& !FRAME_LIVE_P (mouse_face_frame
))
1759 /* If the frame with mouse highlight was deleted, invalidate the
1761 display_info
->mouse_face_beg_row
= display_info
->mouse_face_beg_col
= -1;
1762 display_info
->mouse_face_end_row
= display_info
->mouse_face_end_col
= -1;
1763 display_info
->mouse_face_window
= Qnil
;
1764 display_info
->mouse_face_deferred_gc
= 0;
1765 display_info
->mouse_face_mouse_frame
= NULL
;
1772 IT_update_end (struct frame
*f
)
1774 struct tty_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
1776 if (dpyinfo
->termscript
)
1777 fprintf (dpyinfo
->termscript
, "\n<UPDATE_END\n");
1778 dpyinfo
->mouse_face_defer
= 0;
1782 IT_frame_up_to_date (struct frame
*f
)
1784 struct tty_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
1785 Lisp_Object new_cursor
, frame_desired_cursor
;
1788 if (dpyinfo
->mouse_face_deferred_gc
1789 || (f
&& f
== dpyinfo
->mouse_face_mouse_frame
))
1792 if (dpyinfo
->mouse_face_mouse_frame
)
1793 IT_note_mouse_highlight (dpyinfo
->mouse_face_mouse_frame
,
1794 dpyinfo
->mouse_face_mouse_x
,
1795 dpyinfo
->mouse_face_mouse_y
);
1796 dpyinfo
->mouse_face_deferred_gc
= 0;
1800 /* Set the cursor type to whatever they wanted. In a minibuffer
1801 window, we want the cursor to appear only if we are reading input
1802 from this window, and we want the cursor to be taken from the
1803 frame parameters. For the selected window, we use either its
1804 buffer-local value or the value from the frame parameters if the
1805 buffer doesn't define its local value for the cursor type. */
1806 sw
= XWINDOW (f
->selected_window
);
1807 frame_desired_cursor
= Fcdr (Fassq (Qcursor_type
, f
->param_alist
));
1808 if (cursor_in_echo_area
1809 && FRAME_HAS_MINIBUF_P (f
)
1810 && EQ (FRAME_MINIBUF_WINDOW (f
), echo_area_window
)
1811 && sw
== XWINDOW (echo_area_window
))
1812 new_cursor
= frame_desired_cursor
;
1815 struct buffer
*b
= XBUFFER (sw
->buffer
);
1817 if (EQ (b
->cursor_type
, Qt
))
1818 new_cursor
= frame_desired_cursor
;
1819 else if (NILP (b
->cursor_type
)) /* nil means no cursor */
1820 new_cursor
= Fcons (Qbar
, make_number (0));
1822 new_cursor
= b
->cursor_type
;
1825 IT_set_cursor_type (f
, new_cursor
);
1827 IT_cmgoto (f
); /* position cursor when update is done */
1830 /* Copy LEN glyphs displayed on a single line whose vertical position
1831 is YPOS, beginning at horizontal position XFROM to horizontal
1832 position XTO, by moving blocks in the video memory. Used by
1833 functions that insert and delete glyphs. */
1835 IT_copy_glyphs (int xfrom
, int xto
, size_t len
, int ypos
)
1837 /* The offsets of source and destination relative to the
1838 conventional memorty selector. */
1839 int from
= 2 * (xfrom
+ screen_size_X
* ypos
) + ScreenPrimary
;
1840 int to
= 2 * (xto
+ screen_size_X
* ypos
) + ScreenPrimary
;
1842 if (from
== to
|| len
<= 0)
1845 _farsetsel (_dos_ds
);
1847 /* The source and destination might overlap, so we need to move
1848 glyphs non-destructively. */
1851 for ( ; len
; from
+= 2, to
+= 2, len
--)
1852 _farnspokew (to
, _farnspeekw (from
));
1856 from
+= (len
- 1) * 2;
1857 to
+= (len
- 1) * 2;
1858 for ( ; len
; from
-= 2, to
-= 2, len
--)
1859 _farnspokew (to
, _farnspeekw (from
));
1861 if (screen_virtual_segment
)
1862 dosv_refresh_virtual_screen (ypos
* screen_size_X
* 2, screen_size_X
);
1865 /* Insert and delete glyphs. */
1867 IT_insert_glyphs (f
, start
, len
)
1869 register struct glyph
*start
;
1872 int shift_by_width
= screen_size_X
- (new_pos_X
+ len
);
1874 /* Shift right the glyphs from the nominal cursor position to the
1875 end of this line. */
1876 IT_copy_glyphs (new_pos_X
, new_pos_X
+ len
, shift_by_width
, new_pos_Y
);
1878 /* Now write the glyphs to be inserted. */
1879 IT_write_glyphs (f
, start
, len
);
1883 IT_delete_glyphs (f
, n
)
1890 /* set-window-configuration on window.c needs this. */
1892 x_set_menu_bar_lines (f
, value
, oldval
)
1894 Lisp_Object value
, oldval
;
1896 set_menu_bar_lines (f
, value
, oldval
);
1899 /* This was copied from xfaces.c */
1901 extern Lisp_Object Qbackground_color
;
1902 extern Lisp_Object Qforeground_color
;
1903 Lisp_Object Qreverse
;
1904 extern Lisp_Object Qtitle
;
1906 /* IT_set_terminal_modes is called when emacs is started,
1907 resumed, and whenever the screen is redrawn! */
1910 IT_set_terminal_modes (struct terminal
*term
)
1912 struct tty_display_info
*tty
;
1914 /* If called with initial terminal, it's too early to do anything
1916 if (term
->type
== output_initial
)
1919 tty
= term
->display_info
.tty
;
1921 if (tty
->termscript
)
1922 fprintf (tty
->termscript
, "\n<SET_TERM>");
1924 screen_size_X
= ScreenCols ();
1925 screen_size_Y
= ScreenRows ();
1926 screen_size
= screen_size_X
* screen_size_Y
;
1928 new_pos_X
= new_pos_Y
= 0;
1929 current_pos_X
= current_pos_Y
= -1;
1931 if (term_setup_done
)
1933 term_setup_done
= 1;
1935 startup_screen_size_X
= screen_size_X
;
1936 startup_screen_size_Y
= screen_size_Y
;
1937 startup_screen_attrib
= ScreenAttrib
;
1939 /* Is DOS/V (or any other RSIS software which relocates
1940 the screen) installed? */
1942 unsigned short es_value
;
1945 regs
.h
.ah
= 0xfe; /* get relocated screen address */
1946 if (ScreenPrimary
== 0xb0000UL
|| ScreenPrimary
== 0xb8000UL
)
1947 regs
.x
.es
= (ScreenPrimary
>> 4) & 0xffff;
1948 else if (screen_old_address
) /* already switched to Japanese mode once */
1949 regs
.x
.es
= (screen_old_address
>> 4) & 0xffff;
1951 regs
.x
.es
= ScreenMode () == 7 ? 0xb000 : 0xb800;
1953 es_value
= regs
.x
.es
;
1954 __dpmi_int (0x10, ®s
);
1956 if (regs
.x
.es
!= es_value
)
1958 /* screen_old_address is only set if ScreenPrimary does NOT
1959 already point to the relocated buffer address returned by
1960 the Int 10h/AX=FEh call above. DJGPP v2.02 and later sets
1961 ScreenPrimary to that address at startup under DOS/V. */
1962 if (regs
.x
.es
!= (ScreenPrimary
>> 4) & 0xffff)
1963 screen_old_address
= ScreenPrimary
;
1964 screen_virtual_segment
= regs
.x
.es
;
1965 screen_virtual_offset
= regs
.x
.di
;
1966 ScreenPrimary
= (screen_virtual_segment
<< 4) + screen_virtual_offset
;
1970 ScreenGetCursor (&startup_pos_Y
, &startup_pos_X
);
1971 ScreenRetrieve (startup_screen_buffer
= xmalloc (screen_size
* 2));
1976 /* IT_reset_terminal_modes is called when emacs is
1977 suspended or killed. */
1980 IT_reset_terminal_modes (struct terminal
*term
)
1982 int display_row_start
= (int) ScreenPrimary
;
1983 int saved_row_len
= startup_screen_size_X
* 2;
1984 int update_row_len
= ScreenCols () * 2, current_rows
= ScreenRows ();
1985 int to_next_row
= update_row_len
;
1986 unsigned char *saved_row
= startup_screen_buffer
;
1987 int cursor_pos_X
= ScreenCols () - 1, cursor_pos_Y
= ScreenRows () - 1;
1988 struct tty_display_info
*tty
= term
->display_info
.tty
;
1990 if (tty
->termscript
)
1991 fprintf (tty
->termscript
, "\n<RESET_TERM>");
1993 if (!term_setup_done
)
1998 /* Leave the video system in the same state as we found it,
1999 as far as the blink/bright-background bit is concerned. */
2000 maybe_enable_blinking ();
2002 /* We have a situation here.
2003 We cannot just do ScreenUpdate(startup_screen_buffer) because
2004 the luser could have changed screen dimensions inside Emacs
2005 and failed (or didn't want) to restore them before killing
2006 Emacs. ScreenUpdate() uses the *current* screen dimensions and
2007 thus will happily use memory outside what was allocated for
2008 `startup_screen_buffer'.
2009 Thus we only restore as much as the current screen dimensions
2010 can hold, and clear the rest (if the saved screen is smaller than
2011 the current) with the color attribute saved at startup. The cursor
2012 is also restored within the visible dimensions. */
2014 ScreenAttrib
= startup_screen_attrib
;
2016 /* Don't restore the screen if we are exiting less than 2 seconds
2017 after startup: we might be crashing, and the screen might show
2018 some vital clues to what's wrong. */
2019 if (clock () - startup_time
>= 2*CLOCKS_PER_SEC
)
2022 if (screen_virtual_segment
)
2023 dosv_refresh_virtual_screen (0, screen_size
);
2025 if (update_row_len
> saved_row_len
)
2026 update_row_len
= saved_row_len
;
2027 if (current_rows
> startup_screen_size_Y
)
2028 current_rows
= startup_screen_size_Y
;
2030 if (tty
->termscript
)
2031 fprintf (tty
->termscript
, "<SCREEN RESTORED (dimensions=%dx%d)>\n",
2032 update_row_len
/ 2, current_rows
);
2034 while (current_rows
--)
2036 dosmemput (saved_row
, update_row_len
, display_row_start
);
2037 if (screen_virtual_segment
)
2038 dosv_refresh_virtual_screen (display_row_start
- ScreenPrimary
,
2039 update_row_len
/ 2);
2040 saved_row
+= saved_row_len
;
2041 display_row_start
+= to_next_row
;
2044 if (startup_pos_X
< cursor_pos_X
)
2045 cursor_pos_X
= startup_pos_X
;
2046 if (startup_pos_Y
< cursor_pos_Y
)
2047 cursor_pos_Y
= startup_pos_Y
;
2049 ScreenSetCursor (cursor_pos_Y
, cursor_pos_X
);
2050 xfree (startup_screen_buffer
);
2051 startup_screen_buffer
= NULL
;
2053 term_setup_done
= 0;
2057 IT_set_terminal_window (struct frame
*f
, int foo
)
2061 /* Remember the screen colors of the curent frame, to serve as the
2062 default colors for newly-created frames. */
2063 DEFUN ("msdos-remember-default-colors", Fmsdos_remember_default_colors
,
2064 Smsdos_remember_default_colors
, 1, 1, 0,
2065 doc
: /* Remember the screen colors of the current frame. */)
2071 CHECK_FRAME (frame
);
2074 /* This function is called after applying default-frame-alist to the
2075 initial frame. At that time, if reverse-colors option was
2076 specified in default-frame-alist, it was already applied, and
2077 frame colors are reversed. */
2078 initial_screen_colors
[0] = FRAME_FOREGROUND_PIXEL (f
);
2079 initial_screen_colors
[1] = FRAME_BACKGROUND_PIXEL (f
);
2083 IT_set_frame_parameters (f
, alist
)
2088 int i
, j
, length
= XINT (Flength (alist
));
2090 = (Lisp_Object
*) alloca (length
* sizeof (Lisp_Object
));
2092 = (Lisp_Object
*) alloca (length
* sizeof (Lisp_Object
));
2093 /* Do we have to reverse the foreground and background colors? */
2094 int reverse
= EQ (Fcdr (Fassq (Qreverse
, f
->param_alist
)), Qt
);
2095 int redraw
= 0, fg_set
= 0, bg_set
= 0;
2096 unsigned long orig_fg
, orig_bg
;
2097 Lisp_Object frame_bg
, frame_fg
;
2098 struct tty_display_info
*tty
= FRAME_TTY (f
);
2099 extern Lisp_Object Qmenu_bar_lines
;
2100 extern Lisp_Object Vmenu_bar_mode
;
2101 int menu_bar_lines_defined
=
2102 !NILP (Fassq (Qmenu_bar_lines
, Vdefault_frame_alist
));
2104 /* If we are creating a new frame, begin with the original screen colors
2105 used for the initial frame. */
2106 if (!f
->default_face_done_p
2107 && initial_screen_colors
[0] != -1 && initial_screen_colors
[1] != -1)
2109 FRAME_FOREGROUND_PIXEL (f
) = initial_screen_colors
[0];
2110 FRAME_BACKGROUND_PIXEL (f
) = initial_screen_colors
[1];
2111 init_frame_faces (f
);
2112 f
->default_face_done_p
= 1;
2114 orig_fg
= reverse
? FRAME_BACKGROUND_PIXEL (f
) : FRAME_FOREGROUND_PIXEL (f
);
2115 orig_bg
= reverse
? FRAME_FOREGROUND_PIXEL (f
) : FRAME_BACKGROUND_PIXEL (f
);
2117 /* Extract parm names and values into those vectors. */
2119 for (tail
= alist
; CONSP (tail
); tail
= Fcdr (tail
))
2124 parms
[i
] = Fcar (elt
);
2125 CHECK_SYMBOL (parms
[i
]);
2126 values
[i
] = Fcdr (elt
);
2132 for (i
= 0; i
< j
; i
++)
2134 Lisp_Object prop
, val
;
2139 if (EQ (prop
, Qreverse
))
2140 reverse
= EQ (val
, Qt
);
2141 else if (!menu_bar_lines_defined
&& EQ (prop
, Qmenu_bar_lines
))
2142 menu_bar_lines_defined
= 1;
2145 if (tty
->termscript
&& reverse
)
2146 fprintf (tty
->termscript
, "<INVERSE-VIDEO>\n");
2148 /* Now process the alist elements in reverse of specified order. */
2149 for (i
--; i
>= 0; i
--)
2151 Lisp_Object prop
, val
;
2156 if (EQ (prop
, Qforeground_color
))
2158 unsigned long new_color
= load_color (f
, NULL
, val
, reverse
2159 ? LFACE_BACKGROUND_INDEX
2160 : LFACE_FOREGROUND_INDEX
);
2161 if (new_color
!= FACE_TTY_DEFAULT_COLOR
2162 && new_color
!= FACE_TTY_DEFAULT_FG_COLOR
2163 && new_color
!= FACE_TTY_DEFAULT_BG_COLOR
)
2167 FRAME_FOREGROUND_PIXEL (f
) = new_color
;
2168 /* Make sure the foreground of the default face for
2169 this frame is changed as well. */
2170 update_face_from_frame_parameter (f
, Qforeground_color
, val
);
2172 if (tty
->termscript
)
2173 fprintf (tty
->termscript
, "<FGCOLOR %lu>\n", new_color
);
2177 FRAME_BACKGROUND_PIXEL (f
) = new_color
;
2178 update_face_from_frame_parameter (f
, Qbackground_color
, val
);
2180 if (tty
->termscript
)
2181 fprintf (tty
->termscript
, "<BGCOLOR %lu>\n", new_color
);
2186 else if (EQ (prop
, Qbackground_color
))
2188 unsigned long new_color
= load_color (f
, NULL
, val
, reverse
2189 ? LFACE_FOREGROUND_INDEX
2190 : LFACE_BACKGROUND_INDEX
);
2191 if (new_color
!= FACE_TTY_DEFAULT_COLOR
2192 && new_color
!= FACE_TTY_DEFAULT_FG_COLOR
2193 && new_color
!= FACE_TTY_DEFAULT_BG_COLOR
)
2197 FRAME_BACKGROUND_PIXEL (f
) = new_color
;
2198 /* Make sure the background of the default face for
2199 this frame is changed as well. */
2201 update_face_from_frame_parameter (f
, Qbackground_color
, val
);
2202 if (tty
->termscript
)
2203 fprintf (tty
->termscript
, "<BGCOLOR %lu>\n", new_color
);
2207 FRAME_FOREGROUND_PIXEL (f
) = new_color
;
2209 update_face_from_frame_parameter (f
, Qforeground_color
, val
);
2210 if (tty
->termscript
)
2211 fprintf (tty
->termscript
, "<FGCOLOR %lu>\n", new_color
);
2216 else if (EQ (prop
, Qtitle
))
2218 x_set_title (f
, val
);
2219 if (tty
->termscript
)
2220 fprintf (tty
->termscript
, "<TITLE: %s>\n", SDATA (val
));
2222 else if (EQ (prop
, Qcursor_type
))
2224 IT_set_cursor_type (f
, val
);
2225 if (tty
->termscript
)
2226 fprintf (tty
->termscript
, "<CTYPE: %s>\n",
2227 EQ (val
, Qbar
) || EQ (val
, Qhbar
)
2228 || CONSP (val
) && (EQ (XCAR (val
), Qbar
)
2229 || EQ (XCAR (val
), Qhbar
))
2232 else if (EQ (prop
, Qtty_type
))
2234 internal_terminal_init ();
2235 if (tty
->termscript
)
2236 fprintf (tty
->termscript
, "<TERM_INIT done, TTY_TYPE: %.*s>\n",
2237 SBYTES (val
), SDATA (val
));
2239 store_frame_param (f
, prop
, val
);
2242 /* If menu-bar-lines is neither in the frame parameters nor in
2243 default-frame-alist, set it according to menu-bar-mode. */
2244 if (!menu_bar_lines_defined
)
2246 store_frame_param (f
, Qmenu_bar_lines
,
2247 NILP (Vmenu_bar_mode
)
2248 ? make_number (0) : make_number (1));
2249 if (tty
->termscript
)
2250 fprintf (tty
->termscript
, "<MENU BAR LINES DEFAULTED: %d\n",
2251 !NILP (Vmenu_bar_mode
));
2254 /* If they specified "reverse", but not the colors, we need to swap
2255 the current frame colors. */
2262 FRAME_FOREGROUND_PIXEL (f
) = orig_bg
;
2263 update_face_from_frame_parameter (f
, Qforeground_color
,
2264 tty_color_name (f
, orig_bg
));
2269 FRAME_BACKGROUND_PIXEL (f
) = orig_fg
;
2270 update_face_from_frame_parameter (f
, Qbackground_color
,
2271 tty_color_name (f
, orig_fg
));
2278 face_change_count
++; /* forces xdisp.c to recompute basic faces */
2279 if (f
== SELECTED_FRAME())
2284 extern void init_frame_faces (FRAME_PTR
);
2286 #endif /* !HAVE_X_WINDOWS */
2289 /* Do we need the internal terminal? */
2292 internal_terminal_init ()
2294 static int init_needed
= 1;
2295 char *term
= getenv ("TERM"), *colors
;
2296 struct frame
*sf
= SELECTED_FRAME();
2297 struct tty_display_info
*tty
;
2299 #ifdef HAVE_X_WINDOWS
2300 if (!inhibit_window_system
)
2304 /* If this is the initial terminal, we are done here. */
2305 if (sf
->output_method
== output_initial
)
2309 = (!noninteractive
) && term
&& !strcmp (term
, "internal");
2311 #ifndef HAVE_X_WINDOWS
2312 if (!internal_terminal
|| inhibit_window_system
)
2314 sf
->output_method
= output_termcap
;
2318 tty
= FRAME_TTY (sf
);
2319 current_kboard
->Vwindow_system
= Qpc
;
2320 sf
->output_method
= output_msdos_raw
;
2323 if (!tty
->termscript
&& getenv ("EMACSTEST"))
2324 tty
->termscript
= fopen (getenv ("EMACSTEST"), "wt");
2325 if (tty
->termscript
)
2327 time_t now
= time (NULL
);
2328 struct tm
*tnow
= localtime (&now
);
2331 strftime (tbuf
, sizeof (tbuf
) - 1, "%a %b %e %Y %H:%M:%S %Z", tnow
);
2332 fprintf (tty
->termscript
, "\nEmacs session started at %s\n", tbuf
);
2333 fprintf (tty
->termscript
, "=====================\n\n");
2336 Vinitial_window_system
= Qpc
;
2337 Vwindow_system_version
= make_number (23); /* RE Emacs version */
2338 tty
->terminal
->type
= output_msdos_raw
;
2340 /* If Emacs was dumped on DOS/V machine, forget the stale VRAM
2342 screen_old_address
= 0;
2344 /* Forget the stale screen colors as well. */
2345 initial_screen_colors
[0] = initial_screen_colors
[1] = -1;
2347 FRAME_BACKGROUND_PIXEL (SELECTED_FRAME ()) = 7; /* White */
2348 FRAME_FOREGROUND_PIXEL (SELECTED_FRAME ()) = 0; /* Black */
2350 colors
= getenv ("EMACSCOLORS");
2351 if (colors
&& strlen (colors
) >= 2)
2353 /* The colors use 4 bits each (we enable bright background). */
2354 if (isdigit (colors
[0]))
2356 else if (isxdigit (colors
[0]))
2357 colors
[0] -= (isupper (colors
[0]) ? 'A' : 'a') - 10;
2358 if (colors
[0] >= 0 && colors
[0] < 16)
2359 FRAME_FOREGROUND_PIXEL (SELECTED_FRAME ()) = colors
[0];
2360 if (isdigit (colors
[1]))
2362 else if (isxdigit (colors
[1]))
2363 colors
[1] -= (isupper (colors
[1]) ? 'A' : 'a') - 10;
2364 if (colors
[1] >= 0 && colors
[1] < 16)
2365 FRAME_BACKGROUND_PIXEL (SELECTED_FRAME ()) = colors
[1];
2367 the_only_display_info
.mouse_face_mouse_frame
= NULL
;
2368 the_only_display_info
.mouse_face_deferred_gc
= 0;
2369 the_only_display_info
.mouse_face_beg_row
=
2370 the_only_display_info
.mouse_face_beg_col
= -1;
2371 the_only_display_info
.mouse_face_end_row
=
2372 the_only_display_info
.mouse_face_end_col
= -1;
2373 the_only_display_info
.mouse_face_face_id
= DEFAULT_FACE_ID
;
2374 the_only_display_info
.mouse_face_window
= Qnil
;
2375 the_only_display_info
.mouse_face_mouse_x
=
2376 the_only_display_info
.mouse_face_mouse_y
= 0;
2377 the_only_display_info
.mouse_face_defer
= 0;
2378 the_only_display_info
.mouse_face_hidden
= 0;
2380 if (have_mouse
) /* detected in dos_ttraw, which see */
2382 have_mouse
= 1; /* enable mouse */
2384 mouse_setup_buttons (mouse_button_count
);
2385 tty
->terminal
->mouse_position_hook
= &mouse_get_pos
;
2389 if (tty
->termscript
&& screen_size
)
2390 fprintf (tty
->termscript
, "<SCREEN SAVED (dimensions=%dx%d)>\n",
2391 screen_size_X
, screen_size_Y
);
2393 init_frame_faces (sf
);
2400 initialize_msdos_display (struct terminal
*term
)
2402 term
->rif
= 0; /* we don't support window-based display */
2403 term
->cursor_to_hook
= term
->raw_cursor_to_hook
= IT_cursor_to
;
2404 term
->clear_to_end_hook
= IT_clear_to_end
;
2405 term
->clear_frame_hook
= IT_clear_screen
;
2406 term
->clear_end_of_line_hook
= IT_clear_end_of_line
;
2407 term
->ins_del_lines_hook
= 0;
2408 term
->insert_glyphs_hook
= IT_insert_glyphs
;
2409 term
->write_glyphs_hook
= IT_write_glyphs
;
2410 term
->delete_glyphs_hook
= IT_delete_glyphs
;
2411 term
->ring_bell_hook
= IT_ring_bell
;
2412 term
->reset_terminal_modes_hook
= IT_reset_terminal_modes
;
2413 term
->set_terminal_modes_hook
= IT_set_terminal_modes
;
2414 term
->set_terminal_window_hook
= IT_set_terminal_window
;
2415 term
->update_begin_hook
= IT_update_begin
;
2416 term
->update_end_hook
= IT_update_end
;
2417 term
->frame_up_to_date_hook
= IT_frame_up_to_date
;
2418 term
->mouse_position_hook
= 0; /* set later by dos_ttraw */
2419 term
->frame_rehighlight_hook
= 0;
2420 term
->frame_raise_lower_hook
= 0;
2421 term
->set_vertical_scroll_bar_hook
= 0;
2422 term
->condemn_scroll_bars_hook
= 0;
2423 term
->redeem_scroll_bar_hook
= 0;
2424 term
->judge_scroll_bars_hook
= 0;
2425 term
->read_socket_hook
= &tty_read_avail_input
; /* from keyboard.c */
2428 dos_get_saved_screen (screen
, rows
, cols
)
2433 #ifndef HAVE_X_WINDOWS
2434 *screen
= startup_screen_buffer
;
2435 *cols
= startup_screen_size_X
;
2436 *rows
= startup_screen_size_Y
;
2437 return *screen
!= (char *)0;
2443 #ifndef HAVE_X_WINDOWS
2445 /* We are not X, but we can emulate it well enough for our needs... */
2449 if (! FRAME_MSDOS_P (SELECTED_FRAME()))
2450 error ("Not running under a window system");
2456 /* ----------------------- Keyboard control ----------------------
2458 * Keymaps reflect the following keyboard layout:
2460 * 0 1 2 3 4 5 6 7 8 9 10 11 12 BS
2461 * TAB 15 16 17 18 19 20 21 22 23 24 25 26 (41)
2462 * CLOK 30 31 32 33 34 35 36 37 38 39 40 (41) RET
2463 * SH () 45 46 47 48 49 50 51 52 53 54 SHIFT
2467 #define Ignore 0x0000
2468 #define Normal 0x0000 /* normal key - alt changes scan-code */
2469 #define FctKey 0x1000 /* func key if c == 0, else c */
2470 #define Special 0x2000 /* func key even if c != 0 */
2471 #define ModFct 0x3000 /* special if mod-keys, else 'c' */
2472 #define Map 0x4000 /* alt scan-code, map to unshift/shift key */
2473 #define KeyPad 0x5000 /* map to insert/kp-0 depending on c == 0xe0 */
2474 #define Grey 0x6000 /* Grey keypad key */
2476 #define Alt 0x0100 /* alt scan-code */
2477 #define Ctrl 0x0200 /* ctrl scan-code */
2478 #define Shift 0x0400 /* shift scan-code */
2480 static int extended_kbd
; /* 101 (102) keyboard present. */
2482 struct kbd_translate
{
2485 unsigned short code
;
2488 struct dos_keyboard_map
2493 struct kbd_translate
*translate_table
;
2497 static struct dos_keyboard_map us_keyboard
= {
2499 /* 01234567890123456789012345678901234567890 12345678901234 */
2500 "`1234567890-= qwertyuiop[] asdfghjkl;'\\ zxcvbnm,./ ",
2501 /* 0123456789012345678901234567890123456789 012345678901234 */
2502 "~!@#$%^&*()_+ QWERTYUIOP{} ASDFGHJKL:\"| ZXCVBNM<>? ",
2503 0, /* no Alt-Gr key */
2504 0 /* no translate table */
2507 static struct dos_keyboard_map fr_keyboard
= {
2509 /* 012 3456789012345678901234567890123456789012345678901234 */
2510 "ý&\82\",(-\8a_\80\85)= azertyuiop^$ qsdfghjklm\97* wxcvbnm;:! ",
2511 /* 0123456789012345678901234567890123456789012345678901234 */
2512 " 1234567890ø+ AZERTYUIOPù\9c QSDFGHJKLM%æ WXCVBN?./õ ",
2513 /* 01234567 89012345678901234567890123456789012345678901234 */
2515 0 /* no translate table */
2519 * Italian keyboard support, country code 39.
2522 * added also {,},` as, respectively, AltGr-8, AltGr-9, AltGr-'
2523 * Donated by Stefano Brozzi <brozzis@mag00.cedi.unipr.it>
2526 static struct kbd_translate it_kbd_translate_table
[] = {
2527 { 0x56, 0x3c, Normal
| 13 },
2528 { 0x56, 0x3e, Normal
| 27 },
2531 static struct dos_keyboard_map it_keyboard
= {
2533 /* 0 123456789012345678901234567890123456789012345678901234 */
2534 "\\1234567890'\8d< qwertyuiop\8a+> asdfghjkl\95\85\97 zxcvbnm,.- ",
2535 /* 01 23456789012345678901234567890123456789012345678901234 */
2536 "|!\"\9c$%&/()=?^> QWERTYUIOP\82* ASDFGHJKL\87øõ ZXCVBNM;:_ ",
2537 /* 0123456789012345678901234567890123456789012345678901234 */
2539 it_kbd_translate_table
2542 static struct dos_keyboard_map dk_keyboard
= {
2544 /* 0123456789012345678901234567890123456789012345678901234 */
2545 "«1234567890+| qwertyuiop\86~ asdfghjkl\91\9b' zxcvbnm,.- ",
2546 /* 01 23456789012345678901234567890123456789012345678901234 */
2547 "õ!\"#$%&/()=?` QWERTYUIOP\8f^ ASDFGHJKL\92\9d* ZXCVBNM;:_ ",
2548 /* 0123456789012345678901234567890123456789012345678901234 */
2550 0 /* no translate table */
2553 static struct kbd_translate jp_kbd_translate_table
[] = {
2554 { 0x73, 0x5c, Normal
| 0 },
2555 { 0x73, 0x5f, Normal
| 0 },
2556 { 0x73, 0x1c, Map
| 0 },
2557 { 0x7d, 0x5c, Normal
| 13 },
2558 { 0x7d, 0x7c, Normal
| 13 },
2559 { 0x7d, 0x1c, Map
| 13 },
2562 static struct dos_keyboard_map jp_keyboard
= {
2564 /* 0123456789012 345678901234567890123456789012345678901234 */
2565 "\\1234567890-^\\ qwertyuiop@[ asdfghjkl;:] zxcvbnm,./ ",
2566 /* 01 23456789012345678901234567890123456789012345678901234 */
2567 "_!\"#$%&'()~=~| QWERTYUIOP`{ ASDFGHJKL+*} ZXCVBNM<>? ",
2568 0, /* no Alt-Gr key */
2569 jp_kbd_translate_table
2572 static struct keyboard_layout_list
2575 struct dos_keyboard_map
*keyboard_map
;
2576 } keyboard_layout_list
[] =
2585 static struct dos_keyboard_map
*keyboard
;
2586 static int keyboard_map_all
;
2587 static int international_keyboard
;
2590 dos_set_keyboard (code
, always
)
2595 _go32_dpmi_registers regs
;
2597 /* See if Keyb.Com is installed (for international keyboard support).
2598 Note: calling Int 2Fh via int86 wedges the DOS box on some versions
2599 of Windows 9X! So don't do that! */
2601 regs
.x
.ss
= regs
.x
.sp
= regs
.x
.flags
= 0;
2602 _go32_dpmi_simulate_int (0x2f, ®s
);
2603 if (regs
.h
.al
== 0xff)
2604 international_keyboard
= 1;
2606 /* Initialize to US settings, for countries that don't have their own. */
2607 keyboard
= keyboard_layout_list
[0].keyboard_map
;
2608 keyboard_map_all
= always
;
2609 dos_keyboard_layout
= 1;
2611 for (i
= 0; i
< (sizeof (keyboard_layout_list
)/sizeof (struct keyboard_layout_list
)); i
++)
2612 if (code
== keyboard_layout_list
[i
].country_code
)
2614 keyboard
= keyboard_layout_list
[i
].keyboard_map
;
2615 keyboard_map_all
= always
;
2616 dos_keyboard_layout
= code
;
2624 unsigned char char_code
; /* normal code */
2625 unsigned char meta_code
; /* M- code */
2626 unsigned char keypad_code
; /* keypad code */
2627 unsigned char editkey_code
; /* edit key */
2628 } keypad_translate_map
[] = {
2629 '0', '0', 0xb0, /* kp-0 */ 0x63, /* insert */
2630 '1', '1', 0xb1, /* kp-1 */ 0x57, /* end */
2631 '2', '2', 0xb2, /* kp-2 */ 0x54, /* down */
2632 '3', '3', 0xb3, /* kp-3 */ 0x56, /* next */
2633 '4', '4', 0xb4, /* kp-4 */ 0x51, /* left */
2634 '5', '5', 0xb5, /* kp-5 */ 0xb5, /* kp-5 */
2635 '6', '6', 0xb6, /* kp-6 */ 0x53, /* right */
2636 '7', '7', 0xb7, /* kp-7 */ 0x50, /* home */
2637 '8', '8', 0xb8, /* kp-8 */ 0x52, /* up */
2638 '9', '9', 0xb9, /* kp-9 */ 0x55, /* prior */
2639 '.', '-', 0xae, /* kp-decimal */ 0xff /* delete */
2644 unsigned char char_code
; /* normal code */
2645 unsigned char keypad_code
; /* keypad code */
2646 } grey_key_translate_map
[] = {
2647 '/', 0xaf, /* kp-decimal */
2648 '*', 0xaa, /* kp-multiply */
2649 '-', 0xad, /* kp-subtract */
2650 '+', 0xab, /* kp-add */
2651 '\r', 0x8d /* kp-enter */
2654 static unsigned short
2655 ibmpc_translate_map
[] =
2657 /* --------------- 00 to 0f --------------- */
2658 Normal
| 0xff, /* Ctrl Break + Alt-NNN */
2659 Alt
| ModFct
| 0x1b, /* Escape */
2660 Normal
| 1, /* '1' */
2661 Normal
| 2, /* '2' */
2662 Normal
| 3, /* '3' */
2663 Normal
| 4, /* '4' */
2664 Normal
| 5, /* '5' */
2665 Normal
| 6, /* '6' */
2666 Normal
| 7, /* '7' */
2667 Normal
| 8, /* '8' */
2668 Normal
| 9, /* '9' */
2669 Normal
| 10, /* '0' */
2670 Normal
| 11, /* '-' */
2671 Normal
| 12, /* '=' */
2672 Special
| 0x08, /* Backspace */
2673 ModFct
| 0x74, /* Tab/Backtab */
2675 /* --------------- 10 to 1f --------------- */
2688 ModFct
| 0x0d, /* Return */
2693 /* --------------- 20 to 2f --------------- */
2702 Map
| 40, /* '\'' */
2704 Ignore
, /* Left shift */
2705 Map
| 41, /* '\\' */
2711 /* --------------- 30 to 3f --------------- */
2718 Ignore
, /* Right shift */
2719 Grey
| 1, /* Grey * */
2721 Normal
| 55, /* ' ' */
2722 Ignore
, /* Caps Lock */
2723 FctKey
| 0xbe, /* F1 */
2724 FctKey
| 0xbf, /* F2 */
2725 FctKey
| 0xc0, /* F3 */
2726 FctKey
| 0xc1, /* F4 */
2727 FctKey
| 0xc2, /* F5 */
2729 /* --------------- 40 to 4f --------------- */
2730 FctKey
| 0xc3, /* F6 */
2731 FctKey
| 0xc4, /* F7 */
2732 FctKey
| 0xc5, /* F8 */
2733 FctKey
| 0xc6, /* F9 */
2734 FctKey
| 0xc7, /* F10 */
2735 Ignore
, /* Num Lock */
2736 Ignore
, /* Scroll Lock */
2737 KeyPad
| 7, /* Home */
2738 KeyPad
| 8, /* Up */
2739 KeyPad
| 9, /* Page Up */
2740 Grey
| 2, /* Grey - */
2741 KeyPad
| 4, /* Left */
2742 KeyPad
| 5, /* Keypad 5 */
2743 KeyPad
| 6, /* Right */
2744 Grey
| 3, /* Grey + */
2745 KeyPad
| 1, /* End */
2747 /* --------------- 50 to 5f --------------- */
2748 KeyPad
| 2, /* Down */
2749 KeyPad
| 3, /* Page Down */
2750 KeyPad
| 0, /* Insert */
2751 KeyPad
| 10, /* Delete */
2752 Shift
| FctKey
| 0xbe, /* (Shift) F1 */
2753 Shift
| FctKey
| 0xbf, /* (Shift) F2 */
2754 Shift
| FctKey
| 0xc0, /* (Shift) F3 */
2755 Shift
| FctKey
| 0xc1, /* (Shift) F4 */
2756 Shift
| FctKey
| 0xc2, /* (Shift) F5 */
2757 Shift
| FctKey
| 0xc3, /* (Shift) F6 */
2758 Shift
| FctKey
| 0xc4, /* (Shift) F7 */
2759 Shift
| FctKey
| 0xc5, /* (Shift) F8 */
2760 Shift
| FctKey
| 0xc6, /* (Shift) F9 */
2761 Shift
| FctKey
| 0xc7, /* (Shift) F10 */
2762 Ctrl
| FctKey
| 0xbe, /* (Ctrl) F1 */
2763 Ctrl
| FctKey
| 0xbf, /* (Ctrl) F2 */
2765 /* --------------- 60 to 6f --------------- */
2766 Ctrl
| FctKey
| 0xc0, /* (Ctrl) F3 */
2767 Ctrl
| FctKey
| 0xc1, /* (Ctrl) F4 */
2768 Ctrl
| FctKey
| 0xc2, /* (Ctrl) F5 */
2769 Ctrl
| FctKey
| 0xc3, /* (Ctrl) F6 */
2770 Ctrl
| FctKey
| 0xc4, /* (Ctrl) F7 */
2771 Ctrl
| FctKey
| 0xc5, /* (Ctrl) F8 */
2772 Ctrl
| FctKey
| 0xc6, /* (Ctrl) F9 */
2773 Ctrl
| FctKey
| 0xc7, /* (Ctrl) F10 */
2774 Alt
| FctKey
| 0xbe, /* (Alt) F1 */
2775 Alt
| FctKey
| 0xbf, /* (Alt) F2 */
2776 Alt
| FctKey
| 0xc0, /* (Alt) F3 */
2777 Alt
| FctKey
| 0xc1, /* (Alt) F4 */
2778 Alt
| FctKey
| 0xc2, /* (Alt) F5 */
2779 Alt
| FctKey
| 0xc3, /* (Alt) F6 */
2780 Alt
| FctKey
| 0xc4, /* (Alt) F7 */
2781 Alt
| FctKey
| 0xc5, /* (Alt) F8 */
2783 /* --------------- 70 to 7f --------------- */
2784 Alt
| FctKey
| 0xc6, /* (Alt) F9 */
2785 Alt
| FctKey
| 0xc7, /* (Alt) F10 */
2786 Ctrl
| FctKey
| 0x6d, /* (Ctrl) Sys Rq */
2787 Ctrl
| KeyPad
| 4, /* (Ctrl) Left */
2788 Ctrl
| KeyPad
| 6, /* (Ctrl) Right */
2789 Ctrl
| KeyPad
| 1, /* (Ctrl) End */
2790 Ctrl
| KeyPad
| 3, /* (Ctrl) Page Down */
2791 Ctrl
| KeyPad
| 7, /* (Ctrl) Home */
2792 Alt
| Map
| 1, /* '1' */
2793 Alt
| Map
| 2, /* '2' */
2794 Alt
| Map
| 3, /* '3' */
2795 Alt
| Map
| 4, /* '4' */
2796 Alt
| Map
| 5, /* '5' */
2797 Alt
| Map
| 6, /* '6' */
2798 Alt
| Map
| 7, /* '7' */
2799 Alt
| Map
| 8, /* '8' */
2801 /* --------------- 80 to 8f --------------- */
2802 Alt
| Map
| 9, /* '9' */
2803 Alt
| Map
| 10, /* '0' */
2804 Alt
| Map
| 11, /* '-' */
2805 Alt
| Map
| 12, /* '=' */
2806 Ctrl
| KeyPad
| 9, /* (Ctrl) Page Up */
2807 FctKey
| 0xc8, /* F11 */
2808 FctKey
| 0xc9, /* F12 */
2809 Shift
| FctKey
| 0xc8, /* (Shift) F11 */
2810 Shift
| FctKey
| 0xc9, /* (Shift) F12 */
2811 Ctrl
| FctKey
| 0xc8, /* (Ctrl) F11 */
2812 Ctrl
| FctKey
| 0xc9, /* (Ctrl) F12 */
2813 Alt
| FctKey
| 0xc8, /* (Alt) F11 */
2814 Alt
| FctKey
| 0xc9, /* (Alt) F12 */
2815 Ctrl
| KeyPad
| 8, /* (Ctrl) Up */
2816 Ctrl
| Grey
| 2, /* (Ctrl) Grey - */
2817 Ctrl
| KeyPad
| 5, /* (Ctrl) Keypad 5 */
2819 /* --------------- 90 to 9f --------------- */
2820 Ctrl
| Grey
| 3, /* (Ctrl) Grey + */
2821 Ctrl
| KeyPad
| 2, /* (Ctrl) Down */
2822 Ctrl
| KeyPad
| 0, /* (Ctrl) Insert */
2823 Ctrl
| KeyPad
| 10, /* (Ctrl) Delete */
2824 Ctrl
| FctKey
| 0x09, /* (Ctrl) Tab */
2825 Ctrl
| Grey
| 0, /* (Ctrl) Grey / */
2826 Ctrl
| Grey
| 1, /* (Ctrl) Grey * */
2827 Alt
| FctKey
| 0x50, /* (Alt) Home */
2828 Alt
| FctKey
| 0x52, /* (Alt) Up */
2829 Alt
| FctKey
| 0x55, /* (Alt) Page Up */
2830 Ignore
, /* NO KEY */
2831 Alt
| FctKey
| 0x51, /* (Alt) Left */
2832 Ignore
, /* NO KEY */
2833 Alt
| FctKey
| 0x53, /* (Alt) Right */
2834 Ignore
, /* NO KEY */
2835 Alt
| FctKey
| 0x57, /* (Alt) End */
2837 /* --------------- a0 to af --------------- */
2838 Alt
| KeyPad
| 2, /* (Alt) Down */
2839 Alt
| KeyPad
| 3, /* (Alt) Page Down */
2840 Alt
| KeyPad
| 0, /* (Alt) Insert */
2841 Alt
| KeyPad
| 10, /* (Alt) Delete */
2842 Alt
| Grey
| 0, /* (Alt) Grey / */
2843 Alt
| FctKey
| 0x09, /* (Alt) Tab */
2844 Alt
| Grey
| 4 /* (Alt) Keypad Enter */
2847 /* These bit-positions corresponds to values returned by BIOS */
2848 #define SHIFT_P 0x0003 /* two bits! */
2849 #define CTRL_P 0x0004
2850 #define ALT_P 0x0008
2851 #define SCRLOCK_P 0x0010
2852 #define NUMLOCK_P 0x0020
2853 #define CAPSLOCK_P 0x0040
2854 #define ALT_GR_P 0x0800
2855 #define SUPER_P 0x4000 /* pseudo */
2856 #define HYPER_P 0x8000 /* pseudo */
2859 dos_get_modifiers (keymask
)
2863 int mask
, modifiers
= 0;
2865 /* Calculate modifier bits */
2866 regs
.h
.ah
= extended_kbd
? 0x12 : 0x02;
2867 int86 (0x16, ®s
, ®s
);
2871 mask
= regs
.h
.al
& (SHIFT_P
| CTRL_P
| ALT_P
|
2872 SCRLOCK_P
| NUMLOCK_P
| CAPSLOCK_P
);
2876 mask
= regs
.h
.al
& (SHIFT_P
|
2877 SCRLOCK_P
| NUMLOCK_P
| CAPSLOCK_P
);
2879 /* Do not break international keyboard support. */
2880 /* When Keyb.Com is loaded, the right Alt key is */
2881 /* used for accessing characters like { and } */
2882 if (regs
.h
.ah
& 2) /* Left ALT pressed ? */
2885 if ((regs
.h
.ah
& 8) != 0) /* Right ALT pressed ? */
2888 if (dos_hyper_key
== 1)
2891 modifiers
|= hyper_modifier
;
2893 else if (dos_super_key
== 1)
2896 modifiers
|= super_modifier
;
2898 else if (!international_keyboard
)
2900 /* If Keyb.Com is NOT installed, let Right Alt behave
2901 like the Left Alt. */
2907 if (regs
.h
.ah
& 1) /* Left CTRL pressed ? */
2910 if (regs
.h
.ah
& 4) /* Right CTRL pressed ? */
2912 if (dos_hyper_key
== 2)
2915 modifiers
|= hyper_modifier
;
2917 else if (dos_super_key
== 2)
2920 modifiers
|= super_modifier
;
2928 modifiers
|= shift_modifier
;
2930 modifiers
|= ctrl_modifier
;
2932 modifiers
|= meta_modifier
;
2939 #define NUM_RECENT_DOSKEYS (100)
2940 int recent_doskeys_index
; /* Index for storing next element into recent_doskeys */
2941 int total_doskeys
; /* Total number of elements stored into recent_doskeys */
2942 Lisp_Object recent_doskeys
; /* A vector, holding the last 100 keystrokes */
2944 DEFUN ("recent-doskeys", Frecent_doskeys
, Srecent_doskeys
, 0, 0, 0,
2945 doc
: /* Return vector of last 100 keyboard input values seen in dos_rawgetc.
2946 Each input key receives two values in this vector: first the ASCII code,
2947 and then the scan code. */)
2950 Lisp_Object val
, *keys
= XVECTOR (recent_doskeys
)->contents
;
2952 if (total_doskeys
< NUM_RECENT_DOSKEYS
)
2953 return Fvector (total_doskeys
, keys
);
2956 val
= Fvector (NUM_RECENT_DOSKEYS
, keys
);
2957 bcopy (keys
+ recent_doskeys_index
,
2958 XVECTOR (val
)->contents
,
2959 (NUM_RECENT_DOSKEYS
- recent_doskeys_index
) * sizeof (Lisp_Object
));
2961 XVECTOR (val
)->contents
+ NUM_RECENT_DOSKEYS
- recent_doskeys_index
,
2962 recent_doskeys_index
* sizeof (Lisp_Object
));
2967 /* Get a char from keyboard. Function keys are put into the event queue. */
2971 struct input_event event
;
2973 struct tty_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (SELECTED_FRAME());
2976 #ifndef HAVE_X_WINDOWS
2977 /* Maybe put the cursor where it should be. */
2978 IT_cmgoto (SELECTED_FRAME());
2981 /* The following condition is equivalent to `kbhit ()', except that
2982 it uses the bios to do its job. This pleases DESQview/X. */
2983 while ((regs
.h
.ah
= extended_kbd
? 0x11 : 0x01),
2984 int86 (0x16, ®s
, ®s
),
2985 (regs
.x
.flags
& 0x40) == 0)
2988 register unsigned char c
;
2989 int modifiers
, sc
, code
= -1, mask
, kp_mode
;
2991 regs
.h
.ah
= extended_kbd
? 0x10 : 0x00;
2992 int86 (0x16, ®s
, ®s
);
2997 XVECTOR (recent_doskeys
)->contents
[recent_doskeys_index
++]
2999 if (recent_doskeys_index
== NUM_RECENT_DOSKEYS
)
3000 recent_doskeys_index
= 0;
3001 XVECTOR (recent_doskeys
)->contents
[recent_doskeys_index
++]
3003 if (recent_doskeys_index
== NUM_RECENT_DOSKEYS
)
3004 recent_doskeys_index
= 0;
3006 modifiers
= dos_get_modifiers (&mask
);
3008 #ifndef HAVE_X_WINDOWS
3009 if (!NILP (Vdos_display_scancodes
))
3012 sprintf (buf
, "%02x:%02x*%04x",
3013 (unsigned) (sc
&0xff), (unsigned) c
, mask
);
3014 dos_direct_output (screen_size_Y
- 2, screen_size_X
- 12, buf
, 10);
3022 case 10: /* Ctrl Grey Enter */
3023 code
= Ctrl
| Grey
| 4;
3025 case 13: /* Grey Enter */
3028 case '/': /* Grey / */
3038 /* Try the keyboard-private translation table first. */
3039 if (keyboard
->translate_table
)
3041 struct kbd_translate
*p
= keyboard
->translate_table
;
3045 if (p
->sc
== sc
&& p
->ch
== c
)
3053 /* If the private table didn't translate it, use the general
3057 if (sc
>= (sizeof (ibmpc_translate_map
) / sizeof (short)))
3059 if ((code
= ibmpc_translate_map
[sc
]) == Ignore
)
3066 /* We only look at the keyboard Ctrl/Shift/Alt keys when
3067 Emacs is ready to read a key. Therefore, if they press
3068 `Alt-x' when Emacs is busy, by the time we get to
3069 `dos_get_modifiers', they might have already released the
3070 Alt key, and Emacs gets just `x', which is BAD.
3071 However, for keys with the `Map' property set, the ASCII
3072 code returns zero only if Alt is pressed. So, when we DON'T
3073 have to support international_keyboard, we don't have to
3074 distinguish between the left and right Alt keys, and we
3075 can set the META modifier for any keys with the `Map'
3076 property if they return zero ASCII code (c = 0). */
3078 || ( (code
& 0xf000) == Map
&& !international_keyboard
))
3079 modifiers
|= meta_modifier
;
3081 modifiers
|= ctrl_modifier
;
3083 modifiers
|= shift_modifier
;
3086 switch (code
& 0xf000)
3089 if (c
&& !(mask
& (SHIFT_P
| ALT_P
| CTRL_P
| HYPER_P
| SUPER_P
)))
3091 c
= 0; /* Special */
3104 if (c
== 0) /* ctrl-break */
3106 return c
; /* ALT-nnn */
3108 if (!keyboard_map_all
)
3117 if (c
&& !(mask
& ALT_P
) && !((mask
& SHIFT_P
) && (mask
& CTRL_P
)))
3118 if (!keyboard_map_all
)
3122 if (mask
& ALT_P
&& code
<= 10 && code
> 0 && dos_keypad_mode
& 0x200)
3123 mask
|= SHIFT_P
; /* ALT-1 => M-! etc. */
3127 code
= keyboard
->shifted
[code
];
3129 modifiers
&= ~shift_modifier
;
3132 if ((mask
& ALT_GR_P
) && keyboard
->alt_gr
&& keyboard
->alt_gr
[code
] != ' ')
3133 code
= keyboard
->alt_gr
[code
];
3135 code
= keyboard
->unshifted
[code
];
3140 if (c
== 0xe0) /* edit key */
3143 if ((mask
& (NUMLOCK_P
|CTRL_P
|SHIFT_P
|ALT_P
)) == NUMLOCK_P
) /* numlock on */
3144 kp_mode
= dos_keypad_mode
& 0x03;
3146 kp_mode
= (dos_keypad_mode
>> 4) & 0x03;
3151 if (code
== 10 && dos_decimal_point
)
3152 return dos_decimal_point
;
3153 return keypad_translate_map
[code
].char_code
;
3156 code
= 0xff00 | keypad_translate_map
[code
].keypad_code
;
3160 code
= keypad_translate_map
[code
].meta_code
;
3161 modifiers
= meta_modifier
;
3165 code
= 0xff00 | keypad_translate_map
[code
].editkey_code
;
3172 kp_mode
= ((mask
& (NUMLOCK_P
|CTRL_P
|SHIFT_P
|ALT_P
)) == NUMLOCK_P
) ? 0x04 : 0x40;
3173 if (dos_keypad_mode
& kp_mode
)
3174 code
= 0xff00 | grey_key_translate_map
[code
].keypad_code
;
3176 code
= grey_key_translate_map
[code
].char_code
;
3184 if (!dpyinfo
->mouse_face_hidden
&& INTEGERP (Vmouse_highlight
))
3186 clear_mouse_face (dpyinfo
);
3187 dpyinfo
->mouse_face_hidden
= 1;
3191 event
.kind
= NON_ASCII_KEYSTROKE_EVENT
;
3193 event
.kind
= ASCII_KEYSTROKE_EVENT
;
3195 event
.modifiers
= modifiers
;
3196 event
.frame_or_window
= selected_frame
;
3198 event
.timestamp
= event_timestamp ();
3199 kbd_buffer_store_event (&event
);
3202 if (have_mouse
> 0 && !mouse_preempted
)
3204 int but
, press
, x
, y
, ok
;
3205 int mouse_prev_x
= mouse_last_x
, mouse_prev_y
= mouse_last_y
;
3206 Lisp_Object mouse_window
= Qnil
;
3208 /* Check for mouse movement *before* buttons. */
3209 mouse_check_moved ();
3211 /* If the mouse moved from the spot of its last sighting, we
3212 might need to update mouse highlight. */
3213 if (mouse_last_x
!= mouse_prev_x
|| mouse_last_y
!= mouse_prev_y
)
3215 if (dpyinfo
->mouse_face_hidden
)
3217 dpyinfo
->mouse_face_hidden
= 0;
3218 clear_mouse_face (dpyinfo
);
3221 /* Generate SELECT_WINDOW_EVENTs when needed. */
3222 if (!NILP (Vmouse_autoselect_window
))
3224 mouse_window
= window_from_coordinates (SELECTED_FRAME(),
3228 /* A window will be selected only when it is not
3229 selected now, and the last mouse movement event was
3230 not in it. A minibuffer window will be selected iff
3232 if (WINDOWP (mouse_window
)
3233 && !EQ (mouse_window
, last_mouse_window
)
3234 && !EQ (mouse_window
, selected_window
))
3236 event
.kind
= SELECT_WINDOW_EVENT
;
3237 event
.frame_or_window
= mouse_window
;
3239 event
.timestamp
= event_timestamp ();
3240 kbd_buffer_store_event (&event
);
3242 last_mouse_window
= mouse_window
;
3245 last_mouse_window
= Qnil
;
3247 previous_help_echo_string
= help_echo_string
;
3248 help_echo_string
= help_echo_object
= help_echo_window
= Qnil
;
3250 IT_note_mouse_highlight (SELECTED_FRAME(),
3251 mouse_last_x
, mouse_last_y
);
3252 /* If the contents of the global variable help_echo has
3253 changed, generate a HELP_EVENT. */
3254 if (!NILP (help_echo_string
) || !NILP (previous_help_echo_string
))
3256 event
.kind
= HELP_EVENT
;
3257 event
.frame_or_window
= selected_frame
;
3258 event
.arg
= help_echo_object
;
3259 event
.x
= WINDOWP (help_echo_window
)
3260 ? help_echo_window
: selected_frame
;
3261 event
.y
= help_echo_string
;
3262 event
.timestamp
= event_timestamp ();
3263 event
.code
= help_echo_pos
;
3264 kbd_buffer_store_event (&event
);
3268 for (but
= 0; but
< NUM_MOUSE_BUTTONS
; but
++)
3269 for (press
= 0; press
< 2; press
++)
3271 int button_num
= but
;
3274 ok
= mouse_pressed (but
, &x
, &y
);
3276 ok
= mouse_released (but
, &x
, &y
);
3279 /* Allow a simultaneous press/release of Mouse-1 and
3280 Mouse-2 to simulate Mouse-3 on two-button mice. */
3281 if (mouse_button_count
== 2 && but
< 2)
3283 int x2
, y2
; /* don't clobber original coordinates */
3285 /* If only one button is pressed, wait 100 msec and
3286 check again. This way, Speedy Gonzales isn't
3287 punished, while the slow get their chance. */
3288 if (press
&& mouse_pressed (1-but
, &x2
, &y2
)
3289 || !press
&& mouse_released (1-but
, &x2
, &y2
))
3294 if (press
&& mouse_pressed (1-but
, &x2
, &y2
)
3295 || !press
&& mouse_released (1-but
, &x2
, &y2
))
3300 event
.kind
= MOUSE_CLICK_EVENT
;
3301 event
.code
= button_num
;
3302 event
.modifiers
= dos_get_modifiers (0)
3303 | (press
? down_modifier
: up_modifier
);
3304 event
.x
= make_number (x
);
3305 event
.y
= make_number (y
);
3306 event
.frame_or_window
= selected_frame
;
3308 event
.timestamp
= event_timestamp ();
3309 kbd_buffer_store_event (&event
);
3317 static int prev_get_char
= -1;
3319 /* Return 1 if a key is ready to be read without suspending execution. */
3323 if (prev_get_char
!= -1)
3326 return ((prev_get_char
= dos_rawgetc ()) != -1);
3329 /* Read a key. Return -1 if no key is ready. */
3333 if (prev_get_char
!= -1)
3335 int c
= prev_get_char
;
3340 return dos_rawgetc ();
3343 #ifndef HAVE_X_WINDOWS
3345 /* Simulation of X's menus. Nothing too fancy here -- just make it work
3348 Actually, I don't know the meaning of all the parameters of the functions
3349 here -- I only know how they are called by xmenu.c. I could of course
3350 grab the nearest Xlib manual (down the hall, second-to-last door on the
3351 left), but I don't think it's worth the effort. */
3353 /* These hold text of the current and the previous menu help messages. */
3354 static char *menu_help_message
, *prev_menu_help_message
;
3355 /* Pane number and item number of the menu item which generated the
3356 last menu help message. */
3357 static int menu_help_paneno
, menu_help_itemno
;
3364 menu
= (XMenu
*) xmalloc (sizeof (XMenu
));
3365 menu
->allocated
= menu
->count
= menu
->panecount
= menu
->width
= 0;
3369 /* Allocate some (more) memory for MENU ensuring that there is room for one
3373 IT_menu_make_room (XMenu
*menu
)
3375 if (menu
->allocated
== 0)
3377 int count
= menu
->allocated
= 10;
3378 menu
->text
= (char **) xmalloc (count
* sizeof (char *));
3379 menu
->submenu
= (XMenu
**) xmalloc (count
* sizeof (XMenu
*));
3380 menu
->panenumber
= (int *) xmalloc (count
* sizeof (int));
3381 menu
->help_text
= (char **) xmalloc (count
* sizeof (char *));
3383 else if (menu
->allocated
== menu
->count
)
3385 int count
= menu
->allocated
= menu
->allocated
+ 10;
3387 = (char **) xrealloc (menu
->text
, count
* sizeof (char *));
3389 = (XMenu
**) xrealloc (menu
->submenu
, count
* sizeof (XMenu
*));
3391 = (int *) xrealloc (menu
->panenumber
, count
* sizeof (int));
3393 = (char **) xrealloc (menu
->help_text
, count
* sizeof (char *));
3397 /* Search the given menu structure for a given pane number. */
3400 IT_menu_search_pane (XMenu
*menu
, int pane
)
3405 for (i
= 0; i
< menu
->count
; i
++)
3406 if (menu
->submenu
[i
])
3408 if (pane
== menu
->panenumber
[i
])
3409 return menu
->submenu
[i
];
3410 if ((try = IT_menu_search_pane (menu
->submenu
[i
], pane
)))
3416 /* Determine how much screen space a given menu needs. */
3419 IT_menu_calc_size (XMenu
*menu
, int *width
, int *height
)
3421 int i
, h2
, w2
, maxsubwidth
, maxheight
;
3424 maxheight
= menu
->count
;
3425 for (i
= 0; i
< menu
->count
; i
++)
3427 if (menu
->submenu
[i
])
3429 IT_menu_calc_size (menu
->submenu
[i
], &w2
, &h2
);
3430 if (w2
> maxsubwidth
) maxsubwidth
= w2
;
3431 if (i
+ h2
> maxheight
) maxheight
= i
+ h2
;
3434 *width
= menu
->width
+ maxsubwidth
;
3435 *height
= maxheight
;
3438 /* Display MENU at (X,Y) using FACES. */
3440 #define BUILD_CHAR_GLYPH(GLYPH, CODE, FACE_ID, PADDING_P) \
3443 (GLYPH).type = CHAR_GLYPH; \
3444 SET_CHAR_GLYPH ((GLYPH), CODE, FACE_ID, PADDING_P); \
3445 (GLYPH).charpos = -1; \
3450 IT_menu_display (XMenu
*menu
, int y
, int x
, int pn
, int *faces
, int disp_help
)
3452 int i
, j
, face
, width
, mx
, my
, enabled
, mousehere
, row
, col
;
3453 struct glyph
*text
, *p
;
3454 const unsigned char *q
;
3455 struct frame
*sf
= SELECTED_FRAME();
3457 menu_help_message
= NULL
;
3459 width
= menu
->width
;
3460 /* We multiply width by 2 to account for possible control characters.
3461 FIXME: cater to non-ASCII characters in menus. */
3462 text
= (struct glyph
*) xmalloc ((width
* 2 + 2) * sizeof (struct glyph
));
3463 ScreenGetCursor (&row
, &col
);
3464 mouse_get_xy (&mx
, &my
);
3465 IT_update_begin (sf
);
3466 for (i
= 0; i
< menu
->count
; i
++)
3468 int max_width
= width
+ 2;
3470 IT_cursor_to (sf
, y
+ i
, x
);
3472 = (!menu
->submenu
[i
] && menu
->panenumber
[i
]) || (menu
->submenu
[i
]);
3473 mousehere
= (y
+ i
== my
&& x
<= mx
&& mx
< x
+ max_width
);
3474 face
= faces
[enabled
+ mousehere
* 2];
3475 /* The following if clause means that we display the menu help
3476 strings even if the menu item is currently disabled. */
3477 if (disp_help
&& enabled
+ mousehere
* 2 >= 2)
3479 menu_help_message
= menu
->help_text
[i
];
3480 menu_help_paneno
= pn
- 1;
3481 menu_help_itemno
= i
;
3484 BUILD_CHAR_GLYPH (*p
, ' ', face
, 0);
3486 for (j
= 0, q
= menu
->text
[i
]; *q
; j
++)
3488 unsigned c
= STRING_CHAR_ADVANCE (q
);
3492 BUILD_CHAR_GLYPH (*p
, c
, face
, 0);
3495 else /* make '^x' */
3497 BUILD_CHAR_GLYPH (*p
, '^', face
, 0);
3500 BUILD_CHAR_GLYPH (*p
, c
+ 64, face
, 0);
3504 /* Don't let the menu text overflow into the next screen row. */
3505 if (x
+ max_width
> screen_size_X
)
3507 max_width
= screen_size_X
- x
;
3508 text
[max_width
- 1].u
.ch
= '$'; /* indicate it's truncated */
3510 for (; j
< max_width
- 2; j
++, p
++)
3511 BUILD_CHAR_GLYPH (*p
, ' ', face
, 0);
3513 /* 16 is the character code of a character that on DOS terminal
3514 produces a nice-looking right-pointing arrow glyph. */
3515 BUILD_CHAR_GLYPH (*p
, menu
->submenu
[i
] ? 16 : ' ', face
, 0);
3517 IT_write_glyphs (sf
, text
, max_width
);
3520 IT_cursor_to (sf
, row
, col
);
3524 /* --------------------------- X Menu emulation ---------------------- */
3526 /* Report availability of menus. */
3529 have_menus_p () { return 1; }
3531 /* Create a brand new menu structure. */
3534 XMenuCreate (Display
*foo1
, Window foo2
, char *foo3
)
3536 return IT_menu_create ();
3539 /* Create a new pane and place it on the outer-most level. It is not
3540 clear that it should be placed out there, but I don't know what else
3544 XMenuAddPane (Display
*foo
, XMenu
*menu
, char *txt
, int enable
)
3552 IT_menu_make_room (menu
);
3553 menu
->submenu
[menu
->count
] = IT_menu_create ();
3554 menu
->text
[menu
->count
] = txt
;
3555 menu
->panenumber
[menu
->count
] = ++menu
->panecount
;
3556 menu
->help_text
[menu
->count
] = NULL
;
3559 /* Adjust length for possible control characters (which will
3560 be written as ^x). */
3561 for (len
= strlen (txt
), p
= txt
; *p
; p
++)
3565 if (len
> menu
->width
)
3568 return menu
->panecount
;
3571 /* Create a new item in a menu pane. */
3574 XMenuAddSelection (Display
*bar
, XMenu
*menu
, int pane
,
3575 int foo
, char *txt
, int enable
, char *help_text
)
3581 if (!(menu
= IT_menu_search_pane (menu
, pane
)))
3583 IT_menu_make_room (menu
);
3584 menu
->submenu
[menu
->count
] = (XMenu
*) 0;
3585 menu
->text
[menu
->count
] = txt
;
3586 menu
->panenumber
[menu
->count
] = enable
;
3587 menu
->help_text
[menu
->count
] = help_text
;
3590 /* Adjust length for possible control characters (which will
3591 be written as ^x). */
3592 for (len
= strlen (txt
), p
= txt
; *p
; p
++)
3596 if (len
> menu
->width
)
3602 /* Decide where the menu would be placed if requested at (X,Y). */
3605 XMenuLocate (Display
*foo0
, XMenu
*menu
, int foo1
, int foo2
, int x
, int y
,
3606 int *ulx
, int *uly
, int *width
, int *height
)
3608 IT_menu_calc_size (menu
, width
, height
);
3614 struct IT_menu_state
3616 void *screen_behind
;
3623 /* Display menu, wait for user's response, and return that response. */
3626 XMenuActivate (Display
*foo
, XMenu
*menu
, int *pane
, int *selidx
,
3627 int x0
, int y0
, unsigned ButtonMask
, char **txt
,
3628 void (*help_callback
)(char *, int, int))
3630 struct IT_menu_state
*state
;
3631 int statecount
, x
, y
, i
, b
, screensize
, leave
, result
, onepane
;
3632 int title_faces
[4]; /* face to display the menu title */
3633 int faces
[4], buffers_num_deleted
= 0;
3634 struct frame
*sf
= SELECTED_FRAME();
3635 Lisp_Object saved_echo_area_message
, selectface
;
3637 /* Just in case we got here without a mouse present... */
3638 if (have_mouse
<= 0)
3639 return XM_IA_SELECT
;
3640 /* Don't allow non-positive x0 and y0, lest the menu will wrap
3641 around the display. */
3647 /* We will process all the mouse events directly, so we had
3648 better prevent dos_rawgetc from stealing them from us. */
3651 state
= alloca (menu
->panecount
* sizeof (struct IT_menu_state
));
3652 screensize
= screen_size
* 2;
3654 = lookup_derived_face (sf
, intern ("msdos-menu-passive-face"),
3655 DEFAULT_FACE_ID
, 1);
3657 = lookup_derived_face (sf
, intern ("msdos-menu-active-face"),
3658 DEFAULT_FACE_ID
, 1);
3659 selectface
= intern ("msdos-menu-select-face");
3660 faces
[2] = lookup_derived_face (sf
, selectface
,
3662 faces
[3] = lookup_derived_face (sf
, selectface
,
3665 /* Make sure the menu title is always displayed with
3666 `msdos-menu-active-face', no matter where the mouse pointer is. */
3667 for (i
= 0; i
< 4; i
++)
3668 title_faces
[i
] = faces
[3];
3672 /* Don't let the title for the "Buffers" popup menu include a
3673 digit (which is ugly).
3675 This is a terrible kludge, but I think the "Buffers" case is
3676 the only one where the title includes a number, so it doesn't
3677 seem to be necessary to make this more general. */
3678 if (strncmp (menu
->text
[0], "Buffers 1", 9) == 0)
3680 menu
->text
[0][7] = '\0';
3681 buffers_num_deleted
= 1;
3684 /* We need to save the current echo area message, so that we could
3685 restore it below, before we exit. See the commentary below,
3686 before the call to message_with_string. */
3687 saved_echo_area_message
= Fcurrent_message ();
3688 state
[0].menu
= menu
;
3690 ScreenRetrieve (state
[0].screen_behind
= xmalloc (screensize
));
3692 /* Turn off the cursor. Otherwise it shows through the menu
3693 panes, which is ugly. */
3694 IT_display_cursor (0);
3696 /* Display the menu title. */
3697 IT_menu_display (menu
, y0
- 1, x0
- 1, 1, title_faces
, 0);
3698 if (buffers_num_deleted
)
3699 menu
->text
[0][7] = ' ';
3700 if ((onepane
= menu
->count
== 1 && menu
->submenu
[0]))
3702 menu
->width
= menu
->submenu
[0]->width
;
3703 state
[0].menu
= menu
->submenu
[0];
3707 state
[0].menu
= menu
;
3709 state
[0].x
= x0
- 1;
3711 state
[0].pane
= onepane
;
3713 mouse_last_x
= -1; /* A hack that forces display. */
3717 if (!mouse_visible
) mouse_on ();
3718 mouse_check_moved ();
3719 if (sf
->mouse_moved
)
3721 sf
->mouse_moved
= 0;
3722 result
= XM_IA_SELECT
;
3723 mouse_get_xy (&x
, &y
);
3724 for (i
= 0; i
< statecount
; i
++)
3725 if (state
[i
].x
<= x
&& x
< state
[i
].x
+ state
[i
].menu
->width
+ 2)
3727 int dy
= y
- state
[i
].y
;
3728 if (0 <= dy
&& dy
< state
[i
].menu
->count
)
3730 if (!state
[i
].menu
->submenu
[dy
])
3731 if (state
[i
].menu
->panenumber
[dy
])
3732 result
= XM_SUCCESS
;
3734 result
= XM_IA_SELECT
;
3735 *pane
= state
[i
].pane
- 1;
3737 /* We hit some part of a menu, so drop extra menus that
3738 have been opened. That does not include an open and
3740 if (i
!= statecount
- 2
3741 || state
[i
].menu
->submenu
[dy
] != state
[i
+1].menu
)
3742 while (i
!= statecount
- 1)
3746 ScreenUpdate (state
[statecount
].screen_behind
);
3747 if (screen_virtual_segment
)
3748 dosv_refresh_virtual_screen (0, screen_size
);
3749 xfree (state
[statecount
].screen_behind
);
3751 if (i
== statecount
- 1 && state
[i
].menu
->submenu
[dy
])
3753 IT_menu_display (state
[i
].menu
,
3758 state
[statecount
].menu
= state
[i
].menu
->submenu
[dy
];
3759 state
[statecount
].pane
= state
[i
].menu
->panenumber
[dy
];
3761 ScreenRetrieve (state
[statecount
].screen_behind
3762 = xmalloc (screensize
));
3764 = state
[i
].x
+ state
[i
].menu
->width
+ 2;
3765 state
[statecount
].y
= y
;
3770 IT_menu_display (state
[statecount
- 1].menu
,
3771 state
[statecount
- 1].y
,
3772 state
[statecount
- 1].x
,
3773 state
[statecount
- 1].pane
,
3778 if ((menu_help_message
|| prev_menu_help_message
)
3779 && menu_help_message
!= prev_menu_help_message
)
3781 help_callback (menu_help_message
,
3782 menu_help_paneno
, menu_help_itemno
);
3783 IT_display_cursor (0);
3784 prev_menu_help_message
= menu_help_message
;
3786 /* We are busy-waiting for the mouse to move, so let's be nice
3787 to other Windows applications by releasing our time slice. */
3790 for (b
= 0; b
< mouse_button_count
&& !leave
; b
++)
3792 /* Only leave if user both pressed and released the mouse, and in
3793 that order. This avoids popping down the menu pane unless
3794 the user is really done with it. */
3795 if (mouse_pressed (b
, &x
, &y
))
3797 while (mouse_button_depressed (b
, &x
, &y
))
3801 (void) mouse_released (b
, &x
, &y
);
3806 ScreenUpdate (state
[0].screen_behind
);
3807 if (screen_virtual_segment
)
3808 dosv_refresh_virtual_screen (0, screen_size
);
3810 /* We have a situation here. ScreenUpdate has just restored the
3811 screen contents as it was before we started drawing this menu.
3812 That includes any echo area message that could have been
3813 displayed back then. (In reality, that echo area message will
3814 almost always be the ``keystroke echo'' that echoes the sequence
3815 of menu items chosen by the user.) However, if the menu had some
3816 help messages, then displaying those messages caused Emacs to
3817 forget about the original echo area message. So when
3818 ScreenUpdate restored it, it created a discrepancy between the
3819 actual screen contents and what Emacs internal data structures
3822 To avoid this conflict, we force Emacs to restore the original
3823 echo area message as we found it when we entered this function.
3824 The irony of this is that we then erase the restored message
3825 right away, so the only purpose of restoring it is so that
3826 erasing it works correctly... */
3827 if (! NILP (saved_echo_area_message
))
3828 message_with_string ("%s", saved_echo_area_message
, 0);
3830 while (statecount
--)
3831 xfree (state
[statecount
].screen_behind
);
3832 IT_display_cursor (1); /* turn cursor back on */
3833 /* Clean up any mouse events that are waiting inside Emacs event queue.
3834 These events are likely to be generated before the menu was even
3835 displayed, probably because the user pressed and released the button
3836 (which invoked the menu) too quickly. If we don't remove these events,
3837 Emacs will process them after we return and surprise the user. */
3838 discard_mouse_events ();
3839 mouse_clear_clicks ();
3840 if (!kbd_buffer_events_waiting (1))
3841 clear_input_pending ();
3842 /* Allow mouse events generation by dos_rawgetc. */
3847 /* Dispose of a menu. */
3850 XMenuDestroy (Display
*foo
, XMenu
*menu
)
3853 if (menu
->allocated
)
3855 for (i
= 0; i
< menu
->count
; i
++)
3856 if (menu
->submenu
[i
])
3857 XMenuDestroy (foo
, menu
->submenu
[i
]);
3859 xfree (menu
->submenu
);
3860 xfree (menu
->panenumber
);
3861 xfree (menu
->help_text
);
3864 menu_help_message
= prev_menu_help_message
= NULL
;
3868 x_pixel_width (struct frame
*f
)
3870 return FRAME_COLS (f
);
3874 x_pixel_height (struct frame
*f
)
3876 return FRAME_LINES (f
);
3878 #endif /* !HAVE_X_WINDOWS */
3880 /* ----------------------- DOS / UNIX conversion --------------------- */
3882 void msdos_downcase_filename (unsigned char *);
3884 /* Destructively turn backslashes into slashes. */
3887 dostounix_filename (p
)
3890 msdos_downcase_filename (p
);
3900 /* Destructively turn slashes into backslashes. */
3903 unixtodos_filename (p
)
3906 if (p
[1] == ':' && *p
>= 'A' && *p
<= 'Z')
3920 /* Get the default directory for a given drive. 0=def, 1=A, 2=B, ... */
3923 getdefdir (drive
, dst
)
3927 char in_path
[4], *p
= in_path
, e
= errno
;
3929 /* Generate "X:." (when drive is X) or "." (when drive is 0). */
3932 *p
++ = drive
+ 'A' - 1;
3939 _fixpath (in_path
, dst
);
3940 /* _fixpath can set errno to ENOSYS on non-LFN systems because
3941 it queries the LFN support, so ignore that error. */
3942 if ((errno
&& errno
!= ENOSYS
) || *dst
== '\0')
3945 msdos_downcase_filename (dst
);
3952 emacs_root_dir (void)
3954 static char root_dir
[4];
3956 sprintf (root_dir
, "%c:/", 'A' + getdisk ());
3957 root_dir
[0] = tolower (root_dir
[0]);
3961 /* Remove all CR's that are followed by a LF. */
3966 register unsigned char *buf
;
3968 unsigned char *np
= buf
, *startp
= buf
, *endp
= buf
+ n
;
3972 while (buf
< endp
- 1)
3976 if (*(++buf
) != 0x0a)
3987 DEFUN ("msdos-long-file-names", Fmsdos_long_file_names
, Smsdos_long_file_names
,
3989 doc
: /* Return non-nil if long file names are supported on MS-DOS. */)
3992 return (_USE_LFN
? Qt
: Qnil
);
3995 /* Convert alphabetic characters in a filename to lower-case. */
3998 msdos_downcase_filename (p
)
3999 register unsigned char *p
;
4001 /* Always lower-case drive letters a-z, even if the filesystem
4002 preserves case in filenames.
4003 This is so MSDOS filenames could be compared by string comparison
4004 functions that are case-sensitive. Even case-preserving filesystems
4005 do not distinguish case in drive letters. */
4006 if (p
[1] == ':' && *p
>= 'A' && *p
<= 'Z')
4012 /* Under LFN we expect to get pathnames in their true case. */
4013 if (NILP (Fmsdos_long_file_names ()))
4015 if (*p
>= 'A' && *p
<= 'Z')
4019 DEFUN ("msdos-downcase-filename", Fmsdos_downcase_filename
, Smsdos_downcase_filename
,
4021 doc
: /* Convert alphabetic characters in FILENAME to lower case and return that.
4022 When long filenames are supported, doesn't change FILENAME.
4023 If FILENAME is not a string, returns nil.
4024 The argument object is never altered--the value is a copy. */)
4026 Lisp_Object filename
;
4030 if (! STRINGP (filename
))
4033 tem
= Fcopy_sequence (filename
);
4034 msdos_downcase_filename (SDATA (tem
));
4038 /* The Emacs root directory as determined by init_environment. */
4040 static char emacsroot
[MAXPATHLEN
];
4043 rootrelativepath (rel
)
4046 static char result
[MAXPATHLEN
+ 10];
4048 strcpy (result
, emacsroot
);
4049 strcat (result
, "/");
4050 strcat (result
, rel
);
4054 /* Define a lot of environment variables if not already defined. Don't
4055 remove anything unless you know what you're doing -- lots of code will
4056 break if one or more of these are missing. */
4059 init_environment (argc
, argv
, skip_args
)
4066 static const char * const tempdirs
[] = {
4067 "$TMPDIR", "$TEMP", "$TMP", "c:/"
4069 const int imax
= sizeof (tempdirs
) / sizeof (tempdirs
[0]);
4071 /* Make sure they have a usable $TMPDIR. Many Emacs functions use
4072 temporary files and assume "/tmp" if $TMPDIR is unset, which
4073 will break on DOS/Windows. Refuse to work if we cannot find
4074 a directory, not even "c:/", usable for that purpose. */
4075 for (i
= 0; i
< imax
; i
++)
4077 const char *tmp
= tempdirs
[i
];
4078 char buf
[FILENAME_MAX
];
4084 tmp
= getenv (tmp
+ 1);
4088 /* Some lusers set TMPDIR=e:, probably because some losing
4089 programs cannot handle multiple slashes if they use e:/.
4090 e: fails in `access' below, so we interpret e: as e:/. */
4091 tmp_len
= strlen(tmp
);
4092 if (tmp
[tmp_len
- 1] != '/' && tmp
[tmp_len
- 1] != '\\')
4095 buf
[tmp_len
++] = '/', buf
[tmp_len
] = 0;
4100 /* Note that `access' can lie to us if the directory resides on a
4101 read-only filesystem, like CD-ROM or a write-protected floppy.
4102 The only way to be really sure is to actually create a file and
4103 see if it succeeds. But I think that's too much to ask. */
4104 if (tmp
&& access (tmp
, D_OK
) == 0)
4106 setenv ("TMPDIR", tmp
, 1);
4113 Fcons (build_string ("no usable temporary directories found!!"),
4115 "While setting TMPDIR: ");
4117 /* Note the startup time, so we know not to clear the screen if we
4118 exit immediately; see IT_reset_terminal_modes.
4119 (Yes, I know `clock' returns zero the first time it's called, but
4120 I do this anyway, in case some wiseguy changes that at some point.) */
4121 startup_time
= clock ();
4123 /* Find our root from argv[0]. Assuming argv[0] is, say,
4124 "c:/emacs/bin/emacs.exe" our root will be "c:/emacs". */
4125 root
= alloca (MAXPATHLEN
+ 20);
4126 _fixpath (argv
[0], root
);
4127 msdos_downcase_filename (root
);
4128 len
= strlen (root
);
4129 while (len
> 0 && root
[len
] != '/' && root
[len
] != ':')
4133 && (strcmp (root
+ len
- 4, "/bin") == 0
4134 || strcmp (root
+ len
- 4, "/src") == 0)) /* under a debugger */
4135 root
[len
- 4] = '\0';
4137 strcpy (root
, "c:/emacs"); /* let's be defensive */
4138 len
= strlen (root
);
4139 strcpy (emacsroot
, root
);
4141 /* We default HOME to our root. */
4142 setenv ("HOME", root
, 0);
4144 /* We default EMACSPATH to root + "/bin". */
4145 strcpy (root
+ len
, "/bin");
4146 setenv ("EMACSPATH", root
, 0);
4148 /* I don't expect anybody to ever use other terminals so the internal
4149 terminal is the default. */
4150 setenv ("TERM", "internal", 0);
4152 #ifdef HAVE_X_WINDOWS
4153 /* Emacs expects DISPLAY to be set. */
4154 setenv ("DISPLAY", "unix:0.0", 0);
4157 /* SHELL is a bit tricky -- COMSPEC is the closest we come, but we must
4158 downcase it and mirror the backslashes. */
4159 s
= getenv ("COMSPEC");
4160 if (!s
) s
= "c:/command.com";
4161 t
= alloca (strlen (s
) + 1);
4163 dostounix_filename (t
);
4164 setenv ("SHELL", t
, 0);
4166 /* PATH is also downcased and backslashes mirrored. */
4167 s
= getenv ("PATH");
4169 t
= alloca (strlen (s
) + 3);
4170 /* Current directory is always considered part of MsDos's path but it is
4171 not normally mentioned. Now it is. */
4172 strcat (strcpy (t
, ".;"), s
);
4173 dostounix_filename (t
); /* Not a single file name, but this should work. */
4174 setenv ("PATH", t
, 1);
4176 /* In some sense all dos users have root privileges, so... */
4177 setenv ("USER", "root", 0);
4178 setenv ("NAME", getenv ("USER"), 0);
4180 /* Time zone determined from country code. To make this possible, the
4181 country code may not span more than one time zone. In other words,
4182 in the USA, you lose. */
4184 switch (dos_country_code
)
4186 case 31: /* Belgium */
4187 case 32: /* The Netherlands */
4188 case 33: /* France */
4189 case 34: /* Spain */
4190 case 36: /* Hungary */
4191 case 38: /* Yugoslavia (or what's left of it?) */
4192 case 39: /* Italy */
4193 case 41: /* Switzerland */
4194 case 42: /* Tjekia */
4195 case 45: /* Denmark */
4196 case 46: /* Sweden */
4197 case 47: /* Norway */
4198 case 48: /* Poland */
4199 case 49: /* Germany */
4200 /* Daylight saving from last Sunday in March to last Sunday in
4201 September, both at 2AM. */
4202 setenv ("TZ", "MET-01METDST-02,M3.5.0/02:00,M9.5.0/02:00", 0);
4204 case 44: /* United Kingdom */
4205 case 351: /* Portugal */
4206 case 354: /* Iceland */
4207 setenv ("TZ", "GMT+00", 0);
4209 case 81: /* Japan */
4210 case 82: /* Korea */
4211 setenv ("TZ", "JST-09", 0);
4213 case 90: /* Turkey */
4214 case 358: /* Finland */
4215 setenv ("TZ", "EET-02", 0);
4217 case 972: /* Israel */
4218 /* This is an approximation. (For exact rules, use the
4219 `zoneinfo/israel' file which comes with DJGPP, but you need
4220 to install it in `/usr/share/zoneinfo/' directory first.) */
4221 setenv ("TZ", "IST-02IDT-03,M4.1.6/00:00,M9.5.6/01:00", 0);
4229 static int break_stat
; /* BREAK check mode status. */
4230 static int stdin_stat
; /* stdin IOCTL status. */
4232 /* Turn off Dos' Ctrl-C checking and inhibit interpretation of
4233 control chars by DOS. Determine the keyboard type. */
4236 dos_ttraw (struct tty_display_info
*tty
)
4238 union REGS inregs
, outregs
;
4239 static int first_time
= 1;
4241 /* If we are called for the initial terminal, it's too early to do
4242 anything, and termscript isn't set up. */
4243 if (tty
->terminal
->type
== output_initial
)
4246 break_stat
= getcbrk ();
4252 int86 (0x15, &inregs
, &outregs
);
4253 extended_kbd
= (!outregs
.x
.cflag
) && (outregs
.h
.ah
== 0);
4258 #ifdef HAVE_X_WINDOWS
4259 && inhibit_window_system
4263 inregs
.x
.ax
= 0x0021;
4264 int86 (0x33, &inregs
, &outregs
);
4265 have_mouse
= (outregs
.x
.ax
& 0xffff) == 0xffff;
4268 /* Reportedly, the above doesn't work for some mouse drivers. There
4269 is an additional detection method that should work, but might be
4270 a little slower. Use that as an alternative. */
4271 inregs
.x
.ax
= 0x0000;
4272 int86 (0x33, &inregs
, &outregs
);
4273 have_mouse
= (outregs
.x
.ax
& 0xffff) == 0xffff;
4276 mouse_button_count
= outregs
.x
.bx
;
4278 #ifndef HAVE_X_WINDOWS
4279 /* Save the cursor shape used outside Emacs. */
4280 outside_cursor
= _farpeekw (_dos_ds
, 0x460);
4286 stdin_stat
= setmode (fileno (stdin
), O_BINARY
);
4287 return (stdin_stat
!= -1);
4290 return (setmode (fileno (stdin
), O_BINARY
) != -1);
4293 /* Restore status of standard input and Ctrl-C checking. */
4298 union REGS inregs
, outregs
;
4300 setcbrk (break_stat
);
4303 #ifndef HAVE_X_WINDOWS
4304 /* Restore the cursor shape we found on startup. */
4308 inregs
.x
.cx
= outside_cursor
;
4309 int86 (0x10, &inregs
, &outregs
);
4313 return (setmode (fileno (stdin
), stdin_stat
) != -1);
4317 /* Run command as specified by ARGV in directory DIR.
4318 The command is run with input from TEMPIN, output to
4319 file TEMPOUT and stderr to TEMPERR. */
4322 run_msdos_command (argv
, working_dir
, tempin
, tempout
, temperr
, envv
)
4323 unsigned char **argv
;
4324 const char *working_dir
;
4325 int tempin
, tempout
, temperr
;
4328 char *saveargv1
, *saveargv2
, *lowcase_argv0
, *pa
, *pl
;
4329 char oldwd
[MAXPATHLEN
+ 1]; /* Fixed size is safe on MSDOS. */
4330 int msshell
, result
= -1, inbak
, outbak
, errbak
, x
, y
;
4333 /* Get current directory as MSDOS cwd is not per-process. */
4336 /* If argv[0] is the shell, it might come in any lettercase.
4337 Since `Fmember' is case-sensitive, we need to downcase
4338 argv[0], even if we are on case-preserving filesystems. */
4339 lowcase_argv0
= alloca (strlen (argv
[0]) + 1);
4340 for (pa
= argv
[0], pl
= lowcase_argv0
; *pa
; pl
++)
4343 if (*pl
>= 'A' && *pl
<= 'Z')
4348 cmd
= Ffile_name_nondirectory (build_string (lowcase_argv0
));
4349 msshell
= !NILP (Fmember (cmd
, Fsymbol_value (intern ("msdos-shells"))))
4350 && !strcmp ("-c", argv
[1]);
4353 saveargv1
= argv
[1];
4354 saveargv2
= argv
[2];
4356 /* We only need to mirror slashes if a DOS shell will be invoked
4357 not via `system' (which does the mirroring itself). Yes, that
4358 means DJGPP v1.x will lose here. */
4359 if (argv
[2] && argv
[3])
4361 char *p
= alloca (strlen (argv
[2]) + 1);
4363 strcpy (argv
[2] = p
, saveargv2
);
4364 while (*p
&& isspace (*p
))
4376 chdir (working_dir
);
4380 if (inbak
< 0 || outbak
< 0 || errbak
< 0)
4381 goto done
; /* Allocation might fail due to lack of descriptors. */
4384 mouse_get_xy (&x
, &y
);
4386 if (!noninteractive
)
4387 dos_ttcooked (); /* do it here while 0 = stdin */
4393 if (msshell
&& !argv
[3])
4395 /* MS-DOS native shells are too restrictive. For starters, they
4396 cannot grok commands longer than 126 characters. In DJGPP v2
4397 and later, `system' is much smarter, so we'll call it instead. */
4401 /* A shell gets a single argument--its full command
4402 line--whose original was saved in `saveargv2'. */
4404 /* Don't let them pass empty command lines to `system', since
4405 with some shells it will try to invoke an interactive shell,
4406 which will hang Emacs. */
4407 for (cmnd
= saveargv2
; *cmnd
&& isspace (*cmnd
); cmnd
++)
4411 extern char **environ
;
4412 char **save_env
= environ
;
4413 int save_system_flags
= __system_flags
;
4415 /* Request the most powerful version of `system'. We need
4416 all the help we can get to avoid calling stock DOS shells. */
4417 __system_flags
= (__system_redirect
4418 | __system_use_shell
4419 | __system_allow_multiple_cmds
4420 | __system_allow_long_cmds
4421 | __system_handle_null_commands
4422 | __system_emulate_chdir
);
4425 result
= system (cmnd
);
4426 __system_flags
= save_system_flags
;
4430 result
= 0; /* emulate Unixy shell behavior with empty cmd line */
4433 result
= spawnve (P_WAIT
, argv
[0], argv
, envv
);
4438 emacs_close (inbak
);
4439 emacs_close (outbak
);
4440 emacs_close (errbak
);
4442 if (!noninteractive
)
4443 dos_ttraw (CURTTY ());
4447 mouse_moveto (x
, y
);
4450 /* Some programs might change the meaning of the highest bit of the
4451 text attribute byte, so we get blinking characters instead of the
4452 bright background colors. Restore that. */
4453 if (!noninteractive
)
4460 argv
[1] = saveargv1
;
4461 argv
[2] = saveargv2
;
4470 fprintf (stderr
, "%s not yet implemented\r\n", badfunc
);
4471 reset_all_sys_modes ();
4476 * A few unimplemented functions that we silently ignore.
4478 setpgrp () {return 0; }
4479 setpriority (x
,y
,z
) int x
,y
,z
; { return 0; }
4481 #if __DJGPP__ == 2 && __DJGPP_MINOR__ < 2
4483 /* Augment DJGPP library POSIX signal functions. This is needed
4484 as of DJGPP v2.01, but might be in the library in later releases. */
4486 #include <libc/bss.h>
4488 /* A counter to know when to re-initialize the static sets. */
4489 static int sigprocmask_count
= -1;
4491 /* Which signals are currently blocked (initially none). */
4492 static sigset_t current_mask
;
4494 /* Which signals are pending (initially none). */
4495 static sigset_t msdos_pending_signals
;
4497 /* Previous handlers to restore when the blocked signals are unblocked. */
4498 typedef void (*sighandler_t
)(int);
4499 static sighandler_t prev_handlers
[320];
4501 /* A signal handler which just records that a signal occurred
4502 (it will be raised later, if and when the signal is unblocked). */
4504 sig_suspender (signo
)
4507 sigaddset (&msdos_pending_signals
, signo
);
4511 sigprocmask (how
, new_set
, old_set
)
4513 const sigset_t
*new_set
;
4519 /* If called for the first time, initialize. */
4520 if (sigprocmask_count
!= __bss_count
)
4522 sigprocmask_count
= __bss_count
;
4523 sigemptyset (&msdos_pending_signals
);
4524 sigemptyset (¤t_mask
);
4525 for (signo
= 0; signo
< 320; signo
++)
4526 prev_handlers
[signo
] = SIG_ERR
;
4530 *old_set
= current_mask
;
4535 if (how
!= SIG_BLOCK
&& how
!= SIG_UNBLOCK
&& how
!= SIG_SETMASK
)
4541 sigemptyset (&new_mask
);
4543 /* DJGPP supports upto 320 signals. */
4544 for (signo
= 0; signo
< 320; signo
++)
4546 if (sigismember (¤t_mask
, signo
))
4547 sigaddset (&new_mask
, signo
);
4548 else if (sigismember (new_set
, signo
) && how
!= SIG_UNBLOCK
)
4550 sigaddset (&new_mask
, signo
);
4552 /* SIGKILL is silently ignored, as on other platforms. */
4553 if (signo
!= SIGKILL
&& prev_handlers
[signo
] == SIG_ERR
)
4554 prev_handlers
[signo
] = signal (signo
, sig_suspender
);
4556 if (( how
== SIG_UNBLOCK
4557 && sigismember (&new_mask
, signo
)
4558 && sigismember (new_set
, signo
))
4559 || (how
== SIG_SETMASK
4560 && sigismember (&new_mask
, signo
)
4561 && !sigismember (new_set
, signo
)))
4563 sigdelset (&new_mask
, signo
);
4564 if (prev_handlers
[signo
] != SIG_ERR
)
4566 signal (signo
, prev_handlers
[signo
]);
4567 prev_handlers
[signo
] = SIG_ERR
;
4569 if (sigismember (&msdos_pending_signals
, signo
))
4571 sigdelset (&msdos_pending_signals
, signo
);
4576 current_mask
= new_mask
;
4580 #endif /* not __DJGPP_MINOR__ < 2 */
4583 #include "sysselect.h"
4585 #ifndef EMACS_TIME_ZERO_OR_NEG_P
4586 #define EMACS_TIME_ZERO_OR_NEG_P(time) \
4587 ((long)(time).tv_sec < 0 \
4588 || ((time).tv_sec == 0 \
4589 && (long)(time).tv_usec <= 0))
4592 /* This yields the rest of the current time slice to the task manager.
4593 It should be called by any code which knows that it has nothing
4594 useful to do except idle.
4596 I don't use __dpmi_yield here, since versions of library before 2.02
4597 called Int 2Fh/AX=1680h there in a way that would wedge the DOS box
4598 on some versions of Windows 9X. */
4601 dos_yield_time_slice (void)
4603 _go32_dpmi_registers r
;
4606 r
.x
.ss
= r
.x
.sp
= r
.x
.flags
= 0;
4607 _go32_dpmi_simulate_int (0x2f, &r
);
4612 /* Only event queue is checked. */
4613 /* We don't have to call timer_check here
4614 because wait_reading_process_output takes care of that. */
4616 sys_select (nfds
, rfds
, wfds
, efds
, timeout
)
4618 SELECT_TYPE
*rfds
, *wfds
, *efds
;
4619 EMACS_TIME
*timeout
;
4627 check_input
= FD_ISSET (0, rfds
);
4638 /* If we are looking only for the terminal, with no timeout,
4639 just read it and wait -- that's more efficient. */
4642 while (!detect_input_pending ())
4644 dos_yield_time_slice ();
4649 EMACS_TIME clnow
, cllast
, cldiff
;
4652 EMACS_SET_SECS_USECS (cllast
, t
.ti_sec
, t
.ti_hund
* 10000L);
4654 while (!check_input
|| !detect_input_pending ())
4657 EMACS_SET_SECS_USECS (clnow
, t
.ti_sec
, t
.ti_hund
* 10000L);
4658 EMACS_SUB_TIME (cldiff
, clnow
, cllast
);
4660 /* When seconds wrap around, we assume that no more than
4661 1 minute passed since last `gettime'. */
4662 if (EMACS_TIME_NEG_P (cldiff
))
4663 EMACS_SET_SECS (cldiff
, EMACS_SECS (cldiff
) + 60);
4664 EMACS_SUB_TIME (*timeout
, *timeout
, cldiff
);
4666 /* Stop when timeout value crosses zero. */
4667 if (EMACS_TIME_ZERO_OR_NEG_P (*timeout
))
4670 dos_yield_time_slice ();
4680 * Define overlaid functions:
4682 * chdir -> sys_chdir
4683 * tzset -> init_gettimeofday
4684 * abort -> dos_abort
4689 extern int chdir ();
4695 int len
= strlen (path
);
4696 char *tmp
= (char *)path
;
4698 if (*tmp
&& tmp
[1] == ':')
4700 if (getdisk () != tolower (tmp
[0]) - 'a')
4701 setdisk (tolower (tmp
[0]) - 'a');
4702 tmp
+= 2; /* strip drive: KFS 1995-07-06 */
4706 if (len
> 1 && (tmp
[len
- 1] == '/'))
4708 char *tmp1
= (char *) alloca (len
+ 1);
4719 extern void tzset (void);
4722 init_gettimeofday ()
4728 ltm
= gtm
= time (NULL
);
4729 ltm
= mktime (lstm
= localtime (<m
));
4730 gtm
= mktime (gmtime (>m
));
4731 time_rec
.tm_hour
= 99; /* force gettimeofday to get date */
4732 time_rec
.tm_isdst
= lstm
->tm_isdst
;
4733 dos_timezone_offset
= time_rec
.tm_gmtoff
= (int)(gtm
- ltm
) / 60;
4740 dos_abort (file
, line
)
4744 char buffer1
[200], buffer2
[400];
4747 sprintf (buffer1
, "<EMACS FATAL ERROR IN %s LINE %d>", file
, line
);
4748 for (i
= j
= 0; buffer1
[i
]; i
++) {
4749 buffer2
[j
++] = buffer1
[i
];
4750 buffer2
[j
++] = 0x70;
4752 dosmemput (buffer2
, j
, (int)ScreenPrimary
);
4753 ScreenSetCursor (2, 0);
4761 ScreenSetCursor (10, 0);
4762 cputs ("\r\n\nEmacs aborted!\r\n");
4763 #if __DJGPP__ == 2 && __DJGPP_MINOR__ < 2
4764 if (screen_virtual_segment
)
4765 dosv_refresh_virtual_screen (2 * 10 * screen_size_X
, 4 * screen_size_X
);
4766 /* Generate traceback, so we could tell whodunit. */
4767 signal (SIGINT
, SIG_DFL
);
4768 __asm__
__volatile__ ("movb $0x1b,%al;call ___djgpp_hw_exception");
4769 #else /* __DJGPP_MINOR__ >= 2 */
4771 #endif /* __DJGPP_MINOR__ >= 2 */
4776 /* The following variables are required so that cus-start.el won't
4777 complain about unbound variables. */
4778 #ifndef subprocesses
4779 /* Nonzero means delete a process right away if it exits (process.c). */
4780 static int delete_exited_processes
;
4785 recent_doskeys
= Fmake_vector (make_number (NUM_RECENT_DOSKEYS
), Qnil
);
4786 staticpro (&recent_doskeys
);
4788 #ifndef HAVE_X_WINDOWS
4790 /* The following two are from xfns.c: */
4791 Qreverse
= intern ("reverse");
4792 staticpro (&Qreverse
);
4794 DEFVAR_LISP ("dos-unsupported-char-glyph", &Vdos_unsupported_char_glyph
,
4795 doc
: /* *Glyph to display instead of chars not supported by current codepage.
4796 This variable is used only by MS-DOS terminals. */);
4797 Vdos_unsupported_char_glyph
= make_number ('\177');
4800 #ifndef subprocesses
4801 DEFVAR_BOOL ("delete-exited-processes", &delete_exited_processes
,
4802 doc
: /* *Non-nil means delete processes immediately when they exit.
4803 A value of nil means don't delete them until `list-processes' is run. */);
4804 delete_exited_processes
= 0;
4807 defsubr (&Srecent_doskeys
);
4808 defsubr (&Smsdos_long_file_names
);
4809 defsubr (&Smsdos_downcase_filename
);
4810 defsubr (&Smsdos_remember_default_colors
);
4811 defsubr (&Smsdos_set_mouse_buttons
);
4816 /* arch-tag: db404e92-52a5-475f-9eb2-1cb78dd05f30
4817 (do not change this comment) */