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 memset 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 */
105 event_timestamp (void)
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. */)
198 (Lisp_Object nbuttons
)
202 CHECK_NUMBER (nbuttons
);
205 xsignal2 (Qargs_out_of_range
,
206 build_string ("only 2 or 3 mouse buttons are supported"),
208 mouse_setup_buttons (n
);
213 mouse_get_xy (int *x
, int *y
)
218 int86 (0x33, ®s
, ®s
);
224 mouse_moveto (int x
, int y
)
227 struct tty_display_info
*tty
= CURTTY ();
230 fprintf (tty
->termscript
, "<M_XY=%dx%d>", x
, y
);
232 mouse_last_x
= regs
.x
.cx
= x
* 8;
233 mouse_last_y
= regs
.x
.dx
= y
* 8;
234 int86 (0x33, ®s
, ®s
);
238 mouse_pressed (int b
, int *xp
, int *yp
)
242 if (b
>= mouse_button_count
)
245 regs
.x
.bx
= mouse_button_translate
[b
];
246 int86 (0x33, ®s
, ®s
);
248 *xp
= regs
.x
.cx
/ 8, *yp
= regs
.x
.dx
/ 8;
249 return (regs
.x
.bx
!= 0);
253 mouse_released (int b
, int *xp
, int *yp
)
257 if (b
>= mouse_button_count
)
260 regs
.x
.bx
= mouse_button_translate
[b
];
261 int86 (0x33, ®s
, ®s
);
263 *xp
= regs
.x
.cx
/ 8, *yp
= regs
.x
.dx
/ 8;
264 return (regs
.x
.bx
!= 0);
268 mouse_button_depressed (int b
, int *xp
, int *yp
)
272 if (b
>= mouse_button_count
)
275 int86 (0x33, ®s
, ®s
);
276 if ((regs
.x
.bx
& (1 << mouse_button_translate
[b
])) != 0)
286 mouse_get_pos (FRAME_PTR
*f
, int insist
, Lisp_Object
*bar_window
,
287 enum scroll_bar_part
*part
, Lisp_Object
*x
, Lisp_Object
*y
,
291 Lisp_Object frame
, tail
;
293 /* Clear the mouse-moved flag for every frame on this display. */
294 FOR_EACH_FRAME (tail
, frame
)
295 XFRAME (frame
)->mouse_moved
= 0;
297 *f
= SELECTED_FRAME();
299 mouse_get_xy (&ix
, &iy
);
300 *time
= event_timestamp ();
301 *x
= make_number (mouse_last_x
= ix
);
302 *y
= make_number (mouse_last_y
= iy
);
306 mouse_check_moved (void)
310 mouse_get_xy (&x
, &y
);
311 SELECTED_FRAME()->mouse_moved
|= (x
!= mouse_last_x
|| y
!= mouse_last_y
);
316 /* Force the mouse driver to ``forget'' about any button clicks until
319 mouse_clear_clicks (void)
323 for (b
= 0; b
< mouse_button_count
; b
++)
325 int dummy_x
, dummy_y
;
327 (void) mouse_pressed (b
, &dummy_x
, &dummy_y
);
328 (void) mouse_released (b
, &dummy_x
, &dummy_y
);
336 struct tty_display_info
*tty
= CURTTY ();
339 fprintf (tty
->termscript
, "<M_INIT>");
342 int86 (0x33, ®s
, ®s
);
344 /* Reset the mouse last press/release info. It seems that Windows
345 doesn't do that automatically when function 21h is called, which
346 causes Emacs to ``remember'' the click that switched focus to the
347 window just before Emacs was started from that window. */
348 mouse_clear_clicks ();
352 regs
.x
.dx
= 8 * (ScreenCols () - 1);
353 int86 (0x33, ®s
, ®s
);
357 regs
.x
.dx
= 8 * (ScreenRows () - 1);
358 int86 (0x33, ®s
, ®s
);
364 /* ------------------------- Screen control ----------------------
368 static int internal_terminal
= 0;
370 #ifndef HAVE_X_WINDOWS
371 extern unsigned char ScreenAttrib
;
372 static int screen_face
;
374 static int screen_size_X
;
375 static int screen_size_Y
;
376 static int screen_size
;
378 static int current_pos_X
;
379 static int current_pos_Y
;
380 static int new_pos_X
;
381 static int new_pos_Y
;
383 static void *startup_screen_buffer
;
384 static int startup_screen_size_X
;
385 static int startup_screen_size_Y
;
386 static int startup_pos_X
;
387 static int startup_pos_Y
;
388 static unsigned char startup_screen_attrib
;
390 static clock_t startup_time
;
392 static int term_setup_done
;
394 static unsigned short outside_cursor
;
396 /* Similar to the_only_frame. */
397 struct tty_display_info the_only_display_info
;
399 /* Support for DOS/V (allows Japanese characters to be displayed on
400 standard, non-Japanese, ATs). Only supported for DJGPP v2 and later. */
402 /* Holds the address of the text-mode screen buffer. */
403 static unsigned long screen_old_address
= 0;
404 /* Segment and offset of the virtual screen. If 0, DOS/V is NOT loaded. */
405 static unsigned short screen_virtual_segment
= 0;
406 static unsigned short screen_virtual_offset
= 0;
407 /* A flag to control how to display unibyte 8-bit characters. */
408 extern int unibyte_display_via_language_environment
;
410 extern Lisp_Object Qcursor_type
;
411 extern Lisp_Object Qbar
, Qhbar
;
413 /* The screen colors of the current frame, which serve as the default
414 colors for newly-created frames. */
415 static int initial_screen_colors
[2];
417 /* Update the screen from a part of relocated DOS/V screen buffer which
418 begins at OFFSET and includes COUNT characters. */
420 dosv_refresh_virtual_screen (int offset
, int count
)
424 if (offset
< 0 || count
< 0) /* paranoia; invalid values crash DOS/V */
427 regs
.h
.ah
= 0xff; /* update relocated screen */
428 regs
.x
.es
= screen_virtual_segment
;
429 regs
.x
.di
= screen_virtual_offset
+ offset
;
431 __dpmi_int (0x10, ®s
);
435 dos_direct_output (int y
, int x
, char *buf
, int len
)
437 int t0
= 2 * (x
+ y
* screen_size_X
);
438 int t
= t0
+ (int) ScreenPrimary
;
441 /* This is faster. */
442 for (_farsetsel (_dos_ds
); --len
>= 0; t
+= 2, buf
++)
443 _farnspokeb (t
, *buf
);
445 if (screen_virtual_segment
)
446 dosv_refresh_virtual_screen (t0
, l0
);
450 #ifndef HAVE_X_WINDOWS
452 static int blink_bit
= -1; /* the state of the blink bit at startup */
454 /* Enable bright background colors. */
460 /* Remember the original state of the blink/bright-background bit.
461 It is stored at 0040:0065h in the BIOS data area. */
463 blink_bit
= (_farpeekb (_dos_ds
, 0x465) & 0x20) == 0x20;
467 int86 (0x10, ®s
, ®s
);
470 /* Disable bright background colors (and enable blinking) if we found
471 the video system in that state at startup. */
473 maybe_enable_blinking (void)
481 int86 (0x10, ®s
, ®s
);
485 /* Return non-zero if the system has a VGA adapter. */
492 int86 (0x10, ®s
, ®s
);
493 if (regs
.h
.al
== 0x1a && regs
.h
.bl
> 5 && regs
.h
.bl
< 13)
498 /* Set the screen dimensions so that it can show no less than
499 ROWS x COLS frame. */
502 dos_set_window_size (int *rows
, int *cols
)
506 Lisp_Object video_mode
;
507 int video_mode_value
, have_vga
= 0;
508 int current_rows
= ScreenRows (), current_cols
= ScreenCols ();
510 if (*rows
== current_rows
&& *cols
== current_cols
)
514 have_vga
= vga_installed ();
516 /* If the user specified a special video mode for these dimensions,
518 sprintf (video_name
, "screen-dimensions-%dx%d", *rows
, *cols
);
519 video_mode
= Fsymbol_value (Fintern_soft (build_string (video_name
), Qnil
));
521 if (INTEGERP (video_mode
)
522 && (video_mode_value
= XINT (video_mode
)) > 0)
524 regs
.x
.ax
= video_mode_value
;
525 int86 (0x10, ®s
, ®s
);
529 /* Must hardware-reset the mouse, or else it won't update
530 its notion of screen dimensions for some non-standard
531 video modes. This is *painfully* slow... */
533 int86 (0x33, ®s
, ®s
);
537 /* Find one of the dimensions supported by standard EGA/VGA
538 which gives us at least the required dimensions. */
543 } std_dimension
[] = {
553 while (i
< sizeof (std_dimension
) / sizeof (std_dimension
[0]))
555 if (std_dimension
[i
].need_vga
<= have_vga
556 && std_dimension
[i
].rows
>= *rows
)
558 if (std_dimension
[i
].rows
!= current_rows
559 || *cols
!= current_cols
)
560 _set_screen_lines (std_dimension
[i
].rows
);
574 /* Tell the caller what dimensions have been REALLY set. */
575 *rows
= ScreenRows ();
576 *cols
= ScreenCols ();
578 /* Update Emacs' notion of screen dimensions. */
579 screen_size_X
= *cols
;
580 screen_size_Y
= *rows
;
581 screen_size
= *cols
* *rows
;
583 /* If the dimensions changed, the mouse highlight info is invalid. */
584 if (current_rows
!= *rows
|| current_cols
!= *cols
)
586 struct frame
*f
= SELECTED_FRAME();
587 struct tty_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
588 Lisp_Object window
= dpyinfo
->mouse_face_window
;
590 if (! NILP (window
) && XFRAME (XWINDOW (window
)->frame
) == f
)
592 dpyinfo
->mouse_face_beg_row
= dpyinfo
->mouse_face_beg_col
= -1;
593 dpyinfo
->mouse_face_end_row
= dpyinfo
->mouse_face_end_col
= -1;
594 dpyinfo
->mouse_face_window
= Qnil
;
598 /* Enable bright background colors. */
601 /* FIXME: I'm not sure the above will run at all on DOS/V. But let's
602 be defensive anyway. */
603 if (screen_virtual_segment
)
604 dosv_refresh_virtual_screen (0, *cols
* *rows
);
607 /* If we write a character in the position where the mouse is,
608 the mouse cursor may need to be refreshed. */
611 mouse_off_maybe (void)
618 mouse_get_xy (&x
, &y
);
619 if (y
!= new_pos_Y
|| x
< new_pos_X
)
625 #define DEFAULT_CURSOR_START (-1)
626 #define DEFAULT_CURSOR_WIDTH (-1)
627 #define BOX_CURSOR_WIDTH (-32)
629 /* Set cursor to begin at scan line START_LINE in the character cell
630 and extend for WIDTH scan lines. Scan lines are counted from top
631 of the character cell, starting from zero. */
633 msdos_set_cursor_shape (struct frame
*f
, int start_line
, int width
)
635 unsigned desired_cursor
;
637 int max_line
, top_line
, bot_line
;
638 struct tty_display_info
*tty
= FRAME_TTY (f
);
640 /* Avoid the costly BIOS call if F isn't the currently selected
641 frame. Allow for NULL as unconditionally meaning the selected
643 if (f
&& f
!= SELECTED_FRAME())
647 fprintf (tty
->termscript
, "\nCURSOR SHAPE=(%d,%d)", start_line
, width
);
649 /* The character cell size in scan lines is stored at 40:85 in the
651 max_line
= _farpeekw (_dos_ds
, 0x485) - 1;
654 default: /* this relies on CGA cursor emulation being ON! */
671 if (width
== BOX_CURSOR_WIDTH
)
676 else if (start_line
!= DEFAULT_CURSOR_START
)
678 top_line
= start_line
;
679 bot_line
= top_line
- width
- 1;
681 else if (width
!= DEFAULT_CURSOR_WIDTH
)
684 bot_line
= -1 - width
;
687 top_line
= bot_line
+ 1;
691 /* [31, 0] seems to DTRT for all screen sizes. */
695 else /* WIDTH is positive */
697 if (start_line
!= DEFAULT_CURSOR_START
)
698 bot_line
= start_line
;
699 top_line
= bot_line
- (width
- 1);
702 /* If the current cursor shape is already what they want, we are
704 desired_cursor
= ((top_line
& 0x1f) << 8) | (bot_line
& 0x1f);
705 if (desired_cursor
== _farpeekw (_dos_ds
, 0x460))
709 regs
.x
.cx
= desired_cursor
;
710 __dpmi_int (0x10, ®s
);
714 IT_set_cursor_type (struct frame
*f
, Lisp_Object cursor_type
)
716 if (EQ (cursor_type
, Qbar
) || EQ (cursor_type
, Qhbar
))
718 /* Just BAR means the normal EGA/VGA cursor. */
719 msdos_set_cursor_shape (f
, DEFAULT_CURSOR_START
, DEFAULT_CURSOR_WIDTH
);
721 else if (CONSP (cursor_type
)
722 && (EQ (XCAR (cursor_type
), Qbar
)
723 || EQ (XCAR (cursor_type
), Qhbar
)))
725 Lisp_Object bar_parms
= XCDR (cursor_type
);
728 if (INTEGERP (bar_parms
))
730 /* Feature: negative WIDTH means cursor at the top
731 of the character cell, zero means invisible cursor. */
732 width
= XINT (bar_parms
);
733 msdos_set_cursor_shape (f
, width
>= 0 ? DEFAULT_CURSOR_START
: 0,
736 else if (CONSP (bar_parms
)
737 && INTEGERP (XCAR (bar_parms
))
738 && INTEGERP (XCDR (bar_parms
)))
740 int start_line
= XINT (XCDR (bar_parms
));
742 width
= XINT (XCAR (bar_parms
));
743 msdos_set_cursor_shape (f
, start_line
, width
);
748 /* Treat anything unknown as "box cursor". This includes nil, so
749 that a frame which doesn't specify a cursor type gets a box,
750 which is the default in Emacs. */
751 msdos_set_cursor_shape (f
, 0, BOX_CURSOR_WIDTH
);
756 IT_ring_bell (struct frame
*f
)
765 union REGS inregs
, outregs
;
768 intdos (&inregs
, &outregs
);
772 /* Given a face id FACE, extract the face parameters to be used for
773 display until the face changes. The face parameters (actually, its
774 color) are used to construct the video attribute byte for each
775 glyph during the construction of the buffer that is then blitted to
778 IT_set_face (int face
)
780 struct frame
*sf
= SELECTED_FRAME();
781 struct face
*fp
= FACE_FROM_ID (sf
, face
);
782 struct face
*dfp
= FACE_FROM_ID (sf
, DEFAULT_FACE_ID
);
783 unsigned long fg
, bg
, dflt_fg
, dflt_bg
;
784 struct tty_display_info
*tty
= FRAME_TTY (sf
);
789 /* The default face for the frame should always be realized and
797 dflt_fg
= dfp
->foreground
;
798 dflt_bg
= dfp
->background
;
800 /* Don't use invalid colors. In particular, FACE_TTY_DEFAULT_* colors
801 mean use the colors of the default face. Note that we assume all
802 16 colors to be available for the background, since Emacs switches
803 on this mode (and loses the blinking attribute) at startup. */
804 if (fg
== FACE_TTY_DEFAULT_COLOR
|| fg
== FACE_TTY_DEFAULT_FG_COLOR
)
805 fg
= FRAME_FOREGROUND_PIXEL (sf
);
806 else if (fg
== FACE_TTY_DEFAULT_BG_COLOR
)
807 fg
= FRAME_BACKGROUND_PIXEL (sf
);
808 if (bg
== FACE_TTY_DEFAULT_COLOR
|| bg
== FACE_TTY_DEFAULT_BG_COLOR
)
809 bg
= FRAME_BACKGROUND_PIXEL (sf
);
810 else if (bg
== FACE_TTY_DEFAULT_FG_COLOR
)
811 bg
= FRAME_FOREGROUND_PIXEL (sf
);
813 /* Make sure highlighted lines really stand out, come what may. */
814 if (fp
->tty_reverse_p
&& (fg
== dflt_fg
&& bg
== dflt_bg
))
816 unsigned long tem
= fg
;
821 /* If the user requested inverse video, obey. */
824 unsigned long tem2
= fg
;
830 fprintf (tty
->termscript
, "<FACE %d: %d/%d[FG:%d/BG:%d]>", face
,
831 fp
->foreground
, fp
->background
, fg
, bg
);
832 if (fg
>= 0 && fg
< 16)
834 ScreenAttrib
&= 0xf0;
837 if (bg
>= 0 && bg
< 16)
839 ScreenAttrib
&= 0x0f;
840 ScreenAttrib
|= ((bg
& 0x0f) << 4);
844 /* According to RBIL (INTERRUP.A, V-1000), 160 is the maximum possible
845 width of a DOS display in any known text mode. We multiply by 2 to
846 accomodate the screen attribute byte. */
847 #define MAX_SCREEN_BUF 160*2
849 Lisp_Object Vdos_unsupported_char_glyph
;
850 extern unsigned char *encode_terminal_code (struct glyph
*, int,
851 struct coding_system
*);
853 IT_write_glyphs (struct frame
*f
, struct glyph
*str
, int str_len
)
855 unsigned char screen_buf
[MAX_SCREEN_BUF
], *screen_bp
, *bp
;
856 int offset
= 2 * (new_pos_X
+ screen_size_X
* new_pos_Y
);
857 register int sl
= str_len
;
858 struct tty_display_info
*tty
= FRAME_TTY (f
);
860 unsigned char *conversion_buffer
;
862 /* Do we need to consider conversion of unibyte characters to
864 int convert_unibyte_characters
865 = (NILP (current_buffer
->enable_multibyte_characters
)
866 && unibyte_display_via_language_environment
);
868 /* If terminal_coding does any conversion, use it, otherwise use
869 safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here
870 because it always returns 1 if terminal_coding.src_multibyte is 1. */
871 struct coding_system
*coding
= FRAME_TERMINAL_CODING (f
);
873 if (!(coding
->common_flags
& CODING_REQUIRE_ENCODING_MASK
))
874 coding
= &safe_terminal_coding
;
876 if (str_len
<= 0) return;
878 sf
= SELECTED_FRAME();
880 /* Since faces get cached and uncached behind our back, we can't
881 rely on their indices in the cache being consistent across
882 invocations. So always reset the screen face to the default
883 face of the frame, before writing glyphs, and let the glyphs
884 set the right face if it's different from the default. */
885 IT_set_face (DEFAULT_FACE_ID
);
887 /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at
889 coding
->mode
&= ~CODING_MODE_LAST_BLOCK
;
890 screen_bp
= &screen_buf
[0];
896 /* If the face of this glyph is different from the current
897 screen face, update the screen attribute byte. */
899 if (cf
!= screen_face
)
900 IT_set_face (cf
); /* handles invalid faces gracefully */
902 /* Identify a run of glyphs with the same face. */
903 for (n
= 1; n
< sl
; ++n
)
904 if (str
[n
].face_id
!= cf
)
908 /* This is the last glyph. */
909 coding
->mode
|= CODING_MODE_LAST_BLOCK
;
911 conversion_buffer
= encode_terminal_code (str
, n
, coding
);
912 if (coding
->produced
> 0)
914 /* Copy the encoded bytes to the screen buffer. */
915 for (bp
= conversion_buffer
; coding
->produced
--; bp
++)
917 /* Paranoia: discard bytes that would overrun the end of
918 the screen buffer. */
919 if (screen_bp
- screen_buf
<= MAX_SCREEN_BUF
- 2)
921 *screen_bp
++ = (unsigned char)*bp
;
922 *screen_bp
++ = ScreenAttrib
;
925 fputc (*bp
, tty
->termscript
);
928 /* Update STR and its remaining length. */
933 /* Dump whatever we have in the screen buffer. */
935 dosmemput (screen_buf
, screen_bp
- screen_buf
, (int)ScreenPrimary
+ offset
);
936 if (screen_virtual_segment
)
937 dosv_refresh_virtual_screen (offset
, (screen_bp
- screen_buf
) / 2);
938 new_pos_X
+= (screen_bp
- screen_buf
) / 2;
941 /************************************************************************
942 Mouse Highlight (and friends..)
943 ************************************************************************/
945 /* Last window where we saw the mouse. Used by mouse-autoselect-window. */
946 static Lisp_Object last_mouse_window
;
948 static int mouse_preempted
= 0; /* non-zero when XMenu gobbles mouse events */
950 /* Set the mouse pointer shape according to whether it is in the
951 area where the mouse highlight is in effect. */
953 IT_set_mouse_pointer (int mode
)
955 /* A no-op for now. DOS text-mode mouse pointer doesn't offer too
956 many possibilities to change its shape, and the available
957 functionality pretty much sucks (e.g., almost every reasonable
958 shape will conceal the character it is on). Since the color of
959 the pointer changes in the highlighted area, it is not clear to
960 me whether anything else is required, anyway. */
963 /* Display the active region described by mouse_face_*
964 in its mouse-face if HL > 0, in its normal face if HL = 0. */
966 show_mouse_face (struct tty_display_info
*dpyinfo
, int hl
)
968 struct window
*w
= XWINDOW (dpyinfo
->mouse_face_window
);
969 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
972 struct tty_display_info
*tty
= FRAME_TTY (f
);
975 /* If window is in the process of being destroyed, don't bother
977 if (w
->current_matrix
== NULL
)
978 goto set_cursor_shape
;
980 /* Recognize when we are called to operate on rows that don't exist
981 anymore. This can happen when a window is split. */
982 if (dpyinfo
->mouse_face_end_row
>= w
->current_matrix
->nrows
)
983 goto set_cursor_shape
;
985 /* There's no sense to do anything if the mouse face isn't realized. */
988 if (dpyinfo
->mouse_face_hidden
)
989 goto set_cursor_shape
;
991 fp
= FACE_FROM_ID (SELECTED_FRAME(), dpyinfo
->mouse_face_face_id
);
993 goto set_cursor_shape
;
996 /* Note that mouse_face_beg_row etc. are window relative. */
997 for (i
= dpyinfo
->mouse_face_beg_row
;
998 i
<= dpyinfo
->mouse_face_end_row
;
1001 int start_hpos
, end_hpos
;
1002 struct glyph_row
*row
= MATRIX_ROW (w
->current_matrix
, i
);
1004 /* Don't do anything if row doesn't have valid contents. */
1005 if (!row
->enabled_p
)
1008 /* For all but the first row, the highlight starts at column 0. */
1009 if (i
== dpyinfo
->mouse_face_beg_row
)
1010 start_hpos
= dpyinfo
->mouse_face_beg_col
;
1014 if (i
== dpyinfo
->mouse_face_end_row
)
1015 end_hpos
= dpyinfo
->mouse_face_end_col
;
1017 end_hpos
= row
->used
[TEXT_AREA
];
1019 if (end_hpos
<= start_hpos
)
1021 /* Record that some glyphs of this row are displayed in
1023 row
->mouse_face_p
= hl
> 0;
1026 int vpos
= row
->y
+ WINDOW_TOP_EDGE_Y (w
);
1027 int kstart
= start_hpos
+ WINDOW_LEFT_EDGE_X (w
);
1028 int nglyphs
= end_hpos
- start_hpos
;
1029 int offset
= ScreenPrimary
+ 2*(vpos
*screen_size_X
+ kstart
) + 1;
1030 int start_offset
= offset
;
1032 if (tty
->termscript
)
1033 fprintf (tty
->termscript
, "\n<MH+ %d-%d:%d>",
1034 kstart
, kstart
+ nglyphs
- 1, vpos
);
1037 IT_set_face (dpyinfo
->mouse_face_face_id
);
1038 /* Since we are going to change only the _colors_ of the
1039 displayed text, there's no need to go through all the
1040 pain of generating and encoding the text from the glyphs.
1041 Instead, we simply poke the attribute byte of each
1042 affected position in video memory with the colors
1043 computed by IT_set_face! */
1044 _farsetsel (_dos_ds
);
1047 _farnspokeb (offset
, ScreenAttrib
);
1050 if (screen_virtual_segment
)
1051 dosv_refresh_virtual_screen (start_offset
, end_hpos
- start_hpos
);
1056 /* We are removing a previously-drawn mouse highlight. The
1057 safest way to do so is to redraw the glyphs anew, since
1058 all kinds of faces and display tables could have changed
1060 int nglyphs
= end_hpos
- start_hpos
;
1061 int save_x
= new_pos_X
, save_y
= new_pos_Y
;
1063 if (end_hpos
>= row
->used
[TEXT_AREA
])
1064 nglyphs
= row
->used
[TEXT_AREA
] - start_hpos
;
1066 /* IT_write_glyphs writes at cursor position, so we need to
1067 temporarily move cursor coordinates to the beginning of
1068 the highlight region. */
1069 new_pos_X
= start_hpos
+ WINDOW_LEFT_EDGE_X (w
);
1070 new_pos_Y
= row
->y
+ WINDOW_TOP_EDGE_Y (w
);
1072 if (tty
->termscript
)
1073 fprintf (tty
->termscript
, "<MH- %d-%d:%d>",
1074 new_pos_X
, new_pos_X
+ nglyphs
- 1, new_pos_Y
);
1075 IT_write_glyphs (f
, row
->glyphs
[TEXT_AREA
] + start_hpos
, nglyphs
);
1076 if (tty
->termscript
)
1077 fputs ("\n", tty
->termscript
);
1084 /* Change the mouse pointer shape. */
1085 IT_set_mouse_pointer (hl
);
1088 /* Clear out the mouse-highlighted active region.
1089 Redraw it un-highlighted first. */
1091 clear_mouse_face (struct tty_display_info
*dpyinfo
)
1093 if (!dpyinfo
->mouse_face_hidden
&& ! NILP (dpyinfo
->mouse_face_window
))
1094 show_mouse_face (dpyinfo
, 0);
1096 dpyinfo
->mouse_face_beg_row
= dpyinfo
->mouse_face_beg_col
= -1;
1097 dpyinfo
->mouse_face_end_row
= dpyinfo
->mouse_face_end_col
= -1;
1098 dpyinfo
->mouse_face_window
= Qnil
;
1101 /* Find the glyph matrix position of buffer position POS in window W.
1102 *HPOS and *VPOS are set to the positions found. W's current glyphs
1103 must be up to date. If POS is above window start return (0, 0).
1104 If POS is after end of W, return end of last line in W. */
1106 fast_find_position (struct window
*w
, int pos
, int *hpos
, int *vpos
)
1108 int i
, lastcol
, line_start_position
, maybe_next_line_p
= 0;
1109 int yb
= window_text_bottom_y (w
);
1110 struct glyph_row
*row
= MATRIX_ROW (w
->current_matrix
, 0), *best_row
= row
;
1114 if (row
->used
[TEXT_AREA
])
1115 line_start_position
= row
->glyphs
[TEXT_AREA
]->charpos
;
1117 line_start_position
= 0;
1119 if (line_start_position
> pos
)
1121 /* If the position sought is the end of the buffer,
1122 don't include the blank lines at the bottom of the window. */
1123 else if (line_start_position
== pos
1124 && pos
== BUF_ZV (XBUFFER (w
->buffer
)))
1126 maybe_next_line_p
= 1;
1129 else if (line_start_position
> 0)
1132 /* Don't overstep the last matrix row, lest we get into the
1133 never-never land... */
1134 if (row
->y
+ 1 >= yb
)
1140 /* Find the right column within BEST_ROW. */
1143 for (i
= 0; i
< row
->used
[TEXT_AREA
]; i
++)
1145 struct glyph
*glyph
= row
->glyphs
[TEXT_AREA
] + i
;
1148 charpos
= glyph
->charpos
;
1155 else if (charpos
> pos
)
1157 else if (charpos
> 0)
1161 /* If we're looking for the end of the buffer,
1162 and we didn't find it in the line we scanned,
1163 use the start of the following line. */
1164 if (maybe_next_line_p
)
1171 *hpos
= lastcol
+ 1;
1175 /* Take proper action when mouse has moved to the mode or top line of
1176 window W, x-position X. MODE_LINE_P non-zero means mouse is on the
1177 mode line. X is relative to the start of the text display area of
1178 W, so the width of fringes and scroll bars must be subtracted
1179 to get a position relative to the start of the mode line. */
1181 IT_note_mode_line_highlight (struct window
*w
, int x
, int mode_line_p
)
1183 struct frame
*f
= XFRAME (w
->frame
);
1184 struct tty_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
1185 struct glyph_row
*row
;
1188 row
= MATRIX_MODE_LINE_ROW (w
->current_matrix
);
1190 row
= MATRIX_HEADER_LINE_ROW (w
->current_matrix
);
1194 struct glyph
*glyph
, *end
;
1195 Lisp_Object help
, map
;
1197 /* Find the glyph under X. */
1198 glyph
= (row
->glyphs
[TEXT_AREA
]
1200 /* in case someone implements scroll bars some day... */
1201 - WINDOW_LEFT_SCROLL_BAR_AREA_WIDTH (w
));
1202 end
= glyph
+ row
->used
[TEXT_AREA
];
1204 && STRINGP (glyph
->object
)
1205 && STRING_INTERVALS (glyph
->object
)
1206 && glyph
->charpos
>= 0
1207 && glyph
->charpos
< SCHARS (glyph
->object
))
1209 /* If we're on a string with `help-echo' text property,
1210 arrange for the help to be displayed. This is done by
1211 setting the global variable help_echo to the help string. */
1212 help
= Fget_text_property (make_number (glyph
->charpos
),
1213 Qhelp_echo
, glyph
->object
);
1216 help_echo_string
= help
;
1217 XSETWINDOW (help_echo_window
, w
);
1218 help_echo_object
= glyph
->object
;
1219 help_echo_pos
= glyph
->charpos
;
1225 /* Take proper action when the mouse has moved to position X, Y on
1226 frame F as regards highlighting characters that have mouse-face
1227 properties. Also de-highlighting chars where the mouse was before.
1228 X and Y can be negative or out of range. */
1230 IT_note_mouse_highlight (struct frame
*f
, int x
, int y
)
1232 struct tty_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
1233 enum window_part part
= ON_NOTHING
;
1237 /* When a menu is active, don't highlight because this looks odd. */
1238 if (mouse_preempted
)
1241 if (NILP (Vmouse_highlight
)
1242 || !f
->glyphs_initialized_p
)
1245 dpyinfo
->mouse_face_mouse_x
= x
;
1246 dpyinfo
->mouse_face_mouse_y
= y
;
1247 dpyinfo
->mouse_face_mouse_frame
= f
;
1249 if (dpyinfo
->mouse_face_defer
)
1254 dpyinfo
->mouse_face_deferred_gc
= 1;
1258 /* Which window is that in? */
1259 window
= window_from_coordinates (f
, x
, y
, &part
, &x
, &y
, 0);
1261 /* If we were displaying active text in another window, clear that. */
1262 if (! EQ (window
, dpyinfo
->mouse_face_window
))
1263 clear_mouse_face (dpyinfo
);
1265 /* Not on a window -> return. */
1266 if (!WINDOWP (window
))
1269 /* Convert to window-relative coordinates. */
1270 w
= XWINDOW (window
);
1272 if (part
== ON_MODE_LINE
|| part
== ON_HEADER_LINE
)
1274 /* Mouse is on the mode or top line. */
1275 IT_note_mode_line_highlight (w
, x
, part
== ON_MODE_LINE
);
1279 IT_set_mouse_pointer (0);
1281 /* Are we in a window whose display is up to date?
1282 And verify the buffer's text has not changed. */
1284 && EQ (w
->window_end_valid
, w
->buffer
)
1285 && XFASTINT (w
->last_modified
) == BUF_MODIFF (XBUFFER (w
->buffer
))
1286 && (XFASTINT (w
->last_overlay_modified
)
1287 == BUF_OVERLAY_MODIFF (XBUFFER (w
->buffer
))))
1289 int pos
, i
, nrows
= w
->current_matrix
->nrows
;
1290 struct glyph_row
*row
;
1291 struct glyph
*glyph
;
1293 /* Find the glyph under X/Y. */
1295 if (y
>= 0 && y
< nrows
)
1297 row
= MATRIX_ROW (w
->current_matrix
, y
);
1298 /* Give up if some row before the one we are looking for is
1300 for (i
= 0; i
<= y
; i
++)
1301 if (!MATRIX_ROW (w
->current_matrix
, i
)->enabled_p
)
1303 if (i
> y
/* all rows upto and including the one at Y are enabled */
1304 && row
->displays_text_p
1305 && x
< window_box_width (w
, TEXT_AREA
))
1307 glyph
= row
->glyphs
[TEXT_AREA
];
1308 if (x
>= row
->used
[TEXT_AREA
])
1313 if (!BUFFERP (glyph
->object
))
1319 /* Clear mouse face if X/Y not over text. */
1322 clear_mouse_face (dpyinfo
);
1326 if (!BUFFERP (glyph
->object
))
1328 pos
= glyph
->charpos
;
1330 /* Check for mouse-face and help-echo. */
1332 Lisp_Object mouse_face
, overlay
, position
, *overlay_vec
;
1333 int noverlays
, obegv
, ozv
;
1334 struct buffer
*obuf
;
1336 /* If we get an out-of-range value, return now; avoid an error. */
1337 if (pos
> BUF_Z (XBUFFER (w
->buffer
)))
1340 /* Make the window's buffer temporarily current for
1341 overlays_at and compute_char_face. */
1342 obuf
= current_buffer
;
1343 current_buffer
= XBUFFER (w
->buffer
);
1349 /* Is this char mouse-active or does it have help-echo? */
1350 XSETINT (position
, pos
);
1352 /* Put all the overlays we want in a vector in overlay_vec. */
1353 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, NULL
, 0);
1354 /* Sort overlays into increasing priority order. */
1355 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
1357 /* Check mouse-face highlighting. */
1358 if (! (EQ (window
, dpyinfo
->mouse_face_window
)
1359 && y
>= dpyinfo
->mouse_face_beg_row
1360 && y
<= dpyinfo
->mouse_face_end_row
1361 && (y
> dpyinfo
->mouse_face_beg_row
1362 || x
>= dpyinfo
->mouse_face_beg_col
)
1363 && (y
< dpyinfo
->mouse_face_end_row
1364 || x
< dpyinfo
->mouse_face_end_col
1365 || dpyinfo
->mouse_face_past_end
)))
1367 /* Clear the display of the old active region, if any. */
1368 clear_mouse_face (dpyinfo
);
1370 /* Find highest priority overlay that has a mouse-face prop. */
1372 for (i
= noverlays
- 1; i
>= 0; --i
)
1374 mouse_face
= Foverlay_get (overlay_vec
[i
], Qmouse_face
);
1375 if (!NILP (mouse_face
))
1377 overlay
= overlay_vec
[i
];
1382 /* If no overlay applies, get a text property. */
1384 mouse_face
= Fget_text_property (position
, Qmouse_face
,
1387 /* Handle the overlay case. */
1388 if (! NILP (overlay
))
1390 /* Find the range of text around this char that
1391 should be active. */
1392 Lisp_Object before
, after
;
1395 before
= Foverlay_start (overlay
);
1396 after
= Foverlay_end (overlay
);
1397 /* Record this as the current active region. */
1398 fast_find_position (w
, XFASTINT (before
),
1399 &dpyinfo
->mouse_face_beg_col
,
1400 &dpyinfo
->mouse_face_beg_row
);
1401 dpyinfo
->mouse_face_past_end
1402 = !fast_find_position (w
, XFASTINT (after
),
1403 &dpyinfo
->mouse_face_end_col
,
1404 &dpyinfo
->mouse_face_end_row
);
1405 dpyinfo
->mouse_face_window
= window
;
1406 dpyinfo
->mouse_face_face_id
1407 = face_at_buffer_position (w
, pos
, 0, 0,
1409 !dpyinfo
->mouse_face_hidden
,
1412 /* Display it as active. */
1413 show_mouse_face (dpyinfo
, 1);
1415 /* Handle the text property case. */
1416 else if (! NILP (mouse_face
))
1418 /* Find the range of text around this char that
1419 should be active. */
1420 Lisp_Object before
, after
, beginning
, end
;
1423 beginning
= Fmarker_position (w
->start
);
1424 XSETINT (end
, (BUF_Z (XBUFFER (w
->buffer
))
1425 - XFASTINT (w
->window_end_pos
)));
1427 = Fprevious_single_property_change (make_number (pos
+ 1),
1429 w
->buffer
, beginning
);
1431 = Fnext_single_property_change (position
, Qmouse_face
,
1433 /* Record this as the current active region. */
1434 fast_find_position (w
, XFASTINT (before
),
1435 &dpyinfo
->mouse_face_beg_col
,
1436 &dpyinfo
->mouse_face_beg_row
);
1437 dpyinfo
->mouse_face_past_end
1438 = !fast_find_position (w
, XFASTINT (after
),
1439 &dpyinfo
->mouse_face_end_col
,
1440 &dpyinfo
->mouse_face_end_row
);
1441 dpyinfo
->mouse_face_window
= window
;
1442 dpyinfo
->mouse_face_face_id
1443 = face_at_buffer_position (w
, pos
, 0, 0,
1445 !dpyinfo
->mouse_face_hidden
,
1448 /* Display it as active. */
1449 show_mouse_face (dpyinfo
, 1);
1453 /* Look for a `help-echo' property. */
1457 /* Check overlays first. */
1459 for (i
= noverlays
- 1; i
>= 0 && NILP (help
); --i
)
1461 overlay
= overlay_vec
[i
];
1462 help
= Foverlay_get (overlay
, Qhelp_echo
);
1467 help_echo_string
= help
;
1468 help_echo_window
= window
;
1469 help_echo_object
= overlay
;
1470 help_echo_pos
= pos
;
1472 /* Try text properties. */
1473 else if (NILP (help
)
1474 && ((STRINGP (glyph
->object
)
1475 && glyph
->charpos
>= 0
1476 && glyph
->charpos
< SCHARS (glyph
->object
))
1477 || (BUFFERP (glyph
->object
)
1478 && glyph
->charpos
>= BEGV
1479 && glyph
->charpos
< ZV
)))
1481 help
= Fget_text_property (make_number (glyph
->charpos
),
1482 Qhelp_echo
, glyph
->object
);
1485 help_echo_string
= help
;
1486 help_echo_window
= window
;
1487 help_echo_object
= glyph
->object
;
1488 help_echo_pos
= glyph
->charpos
;
1495 current_buffer
= obuf
;
1501 IT_clear_end_of_line (struct frame
*f
, int first_unused
)
1504 int i
, j
, offset
= 2 * (new_pos_X
+ screen_size_X
* new_pos_Y
);
1505 extern int fatal_error_in_progress
;
1506 struct tty_display_info
*tty
= FRAME_TTY (f
);
1508 if (new_pos_X
>= first_unused
|| fatal_error_in_progress
)
1512 i
= (j
= first_unused
- new_pos_X
) * 2;
1513 if (tty
->termscript
)
1514 fprintf (tty
->termscript
, "<CLR:EOL[%d..%d)>", new_pos_X
, first_unused
);
1515 spaces
= sp
= alloca (i
);
1520 *sp
++ = ScreenAttrib
;
1524 dosmemput (spaces
, i
, (int)ScreenPrimary
+ offset
);
1525 if (screen_virtual_segment
)
1526 dosv_refresh_virtual_screen (offset
, i
/ 2);
1528 /* clear_end_of_line_raw on term.c leaves the cursor at first_unused.
1529 Let's follow their lead, in case someone relies on this. */
1530 new_pos_X
= first_unused
;
1534 IT_clear_screen (struct frame
*f
)
1536 struct tty_display_info
*tty
= FRAME_TTY (f
);
1538 if (tty
->termscript
)
1539 fprintf (tty
->termscript
, "<CLR:SCR>");
1540 /* We are sometimes called (from clear_garbaged_frames) when a new
1541 frame is being created, but its faces are not yet realized. In
1542 such a case we cannot call IT_set_face, since it will fail to find
1543 any valid faces and will abort. Instead, use the initial screen
1544 colors; that should mimic what a Unix tty does, which simply clears
1545 the screen with whatever default colors are in use. */
1546 if (FACE_FROM_ID (SELECTED_FRAME (), DEFAULT_FACE_ID
) == NULL
)
1547 ScreenAttrib
= (initial_screen_colors
[0] << 4) | initial_screen_colors
[1];
1552 if (screen_virtual_segment
)
1553 dosv_refresh_virtual_screen (0, screen_size
);
1554 new_pos_X
= new_pos_Y
= 0;
1558 IT_clear_to_end (struct frame
*f
)
1560 struct tty_display_info
*tty
= FRAME_TTY (f
);
1562 if (tty
->termscript
)
1563 fprintf (tty
->termscript
, "<CLR:EOS>");
1565 while (new_pos_Y
< screen_size_Y
) {
1567 IT_clear_end_of_line (f
, screen_size_X
);
1573 IT_cursor_to (struct frame
*f
, int y
, int x
)
1575 struct tty_display_info
*tty
= FRAME_TTY (f
);
1577 if (tty
->termscript
)
1578 fprintf (tty
->termscript
, "\n<XY=%dx%d>", x
, y
);
1583 static int cursor_cleared
;
1586 IT_display_cursor (int on
)
1588 struct tty_display_info
*tty
= CURTTY ();
1590 if (on
&& cursor_cleared
)
1592 ScreenSetCursor (current_pos_Y
, current_pos_X
);
1594 if (tty
->termscript
)
1595 fprintf (tty
->termscript
, "\nCURSOR ON (%dx%d)",
1596 current_pos_Y
, current_pos_X
);
1598 else if (!on
&& !cursor_cleared
)
1600 ScreenSetCursor (-1, -1);
1602 if (tty
->termscript
)
1603 fprintf (tty
->termscript
, "\nCURSOR OFF (%dx%d)",
1604 current_pos_Y
, current_pos_X
);
1608 /* Emacs calls cursor-movement functions a lot when it updates the
1609 display (probably a legacy of old terminals where you cannot
1610 update a screen line without first moving the cursor there).
1611 However, cursor movement is expensive on MSDOS (it calls a slow
1612 BIOS function and requires 2 mode switches), while actual screen
1613 updates access the video memory directly and don't depend on
1614 cursor position. To avoid slowing down the redisplay, we cheat:
1615 all functions that move the cursor only set internal variables
1616 which record the cursor position, whereas the cursor is only
1617 moved to its final position whenever screen update is complete.
1619 `IT_cmgoto' is called from the keyboard reading loop and when the
1620 frame update is complete. This means that we are ready for user
1621 input, so we update the cursor position to show where the point is,
1622 and also make the mouse pointer visible.
1624 Special treatment is required when the cursor is in the echo area,
1625 to put the cursor at the end of the text displayed there. */
1628 IT_cmgoto (FRAME_PTR f
)
1630 /* Only set the cursor to where it should be if the display is
1631 already in sync with the window contents. */
1632 int update_cursor_pos
= 1; /* MODIFF == unchanged_modified; */
1633 struct tty_display_info
*tty
= FRAME_TTY (f
);
1635 /* FIXME: This needs to be rewritten for the new redisplay, or
1638 static int previous_pos_X
= -1;
1640 update_cursor_pos
= 1; /* temporary!!! */
1642 /* If the display is in sync, forget any previous knowledge about
1643 cursor position. This is primarily for unexpected events like
1644 C-g in the minibuffer. */
1645 if (update_cursor_pos
&& previous_pos_X
>= 0)
1646 previous_pos_X
= -1;
1647 /* If we are in the echo area, put the cursor at the
1648 end of the echo area message. */
1649 if (!update_cursor_pos
1650 && WINDOW_TOP_EDGE_LINE (XWINDOW (FRAME_MINIBUF_WINDOW (f
))) <= new_pos_Y
)
1652 int tem_X
= current_pos_X
, dummy
;
1654 if (echo_area_glyphs
)
1656 tem_X
= echo_area_glyphs_length
;
1657 /* Save current cursor position, to be restored after the
1658 echo area message is erased. Only remember one level
1659 of previous cursor position. */
1660 if (previous_pos_X
== -1)
1661 ScreenGetCursor (&dummy
, &previous_pos_X
);
1663 else if (previous_pos_X
>= 0)
1665 /* We wind up here after the echo area message is erased.
1666 Restore the cursor position we remembered above. */
1667 tem_X
= previous_pos_X
;
1668 previous_pos_X
= -1;
1671 if (current_pos_X
!= tem_X
)
1674 update_cursor_pos
= 1;
1679 if (update_cursor_pos
1680 && (current_pos_X
!= new_pos_X
|| current_pos_Y
!= new_pos_Y
))
1682 ScreenSetCursor (current_pos_Y
= new_pos_Y
, current_pos_X
= new_pos_X
);
1683 if (tty
->termscript
)
1684 fprintf (tty
->termscript
, "\n<CURSOR:%dx%d>", current_pos_X
, current_pos_Y
);
1687 /* Maybe cursor is invisible, so make it visible. */
1688 IT_display_cursor (1);
1690 /* Mouse pointer should be always visible if we are waiting for
1697 IT_update_begin (struct frame
*f
)
1699 struct tty_display_info
*display_info
= FRAME_X_DISPLAY_INFO (f
);
1700 struct frame
*mouse_face_frame
= display_info
->mouse_face_mouse_frame
;
1702 if (display_info
->termscript
)
1703 fprintf (display_info
->termscript
, "\n\n<UPDATE_BEGIN");
1707 if (f
&& f
== mouse_face_frame
)
1709 /* Don't do highlighting for mouse motion during the update. */
1710 display_info
->mouse_face_defer
= 1;
1712 /* If F needs to be redrawn, simply forget about any prior mouse
1714 if (FRAME_GARBAGED_P (f
))
1715 display_info
->mouse_face_window
= Qnil
;
1717 /* Can we tell that this update does not affect the window
1718 where the mouse highlight is? If so, no need to turn off.
1719 Likewise, don't do anything if none of the enabled rows
1720 contains glyphs highlighted in mouse face. */
1721 if (!NILP (display_info
->mouse_face_window
)
1722 && WINDOWP (display_info
->mouse_face_window
))
1724 struct window
*w
= XWINDOW (display_info
->mouse_face_window
);
1727 /* If the mouse highlight is in the window that was deleted
1728 (e.g., if it was popped by completion), clear highlight
1730 if (NILP (w
->buffer
))
1731 display_info
->mouse_face_window
= Qnil
;
1734 for (i
= 0; i
< w
->desired_matrix
->nrows
; ++i
)
1735 if (MATRIX_ROW_ENABLED_P (w
->desired_matrix
, i
)
1736 && MATRIX_ROW (w
->current_matrix
, i
)->mouse_face_p
)
1740 if (NILP (w
->buffer
) || i
< w
->desired_matrix
->nrows
)
1741 clear_mouse_face (display_info
);
1744 else if (mouse_face_frame
&& !FRAME_LIVE_P (mouse_face_frame
))
1746 /* If the frame with mouse highlight was deleted, invalidate the
1748 display_info
->mouse_face_beg_row
= display_info
->mouse_face_beg_col
= -1;
1749 display_info
->mouse_face_end_row
= display_info
->mouse_face_end_col
= -1;
1750 display_info
->mouse_face_window
= Qnil
;
1751 display_info
->mouse_face_deferred_gc
= 0;
1752 display_info
->mouse_face_mouse_frame
= NULL
;
1759 IT_update_end (struct frame
*f
)
1761 struct tty_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
1763 if (dpyinfo
->termscript
)
1764 fprintf (dpyinfo
->termscript
, "\n<UPDATE_END\n");
1765 dpyinfo
->mouse_face_defer
= 0;
1769 IT_frame_up_to_date (struct frame
*f
)
1771 struct tty_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
1772 Lisp_Object new_cursor
, frame_desired_cursor
;
1775 if (dpyinfo
->mouse_face_deferred_gc
1776 || (f
&& f
== dpyinfo
->mouse_face_mouse_frame
))
1779 if (dpyinfo
->mouse_face_mouse_frame
)
1780 IT_note_mouse_highlight (dpyinfo
->mouse_face_mouse_frame
,
1781 dpyinfo
->mouse_face_mouse_x
,
1782 dpyinfo
->mouse_face_mouse_y
);
1783 dpyinfo
->mouse_face_deferred_gc
= 0;
1787 /* Set the cursor type to whatever they wanted. In a minibuffer
1788 window, we want the cursor to appear only if we are reading input
1789 from this window, and we want the cursor to be taken from the
1790 frame parameters. For the selected window, we use either its
1791 buffer-local value or the value from the frame parameters if the
1792 buffer doesn't define its local value for the cursor type. */
1793 sw
= XWINDOW (f
->selected_window
);
1794 frame_desired_cursor
= Fcdr (Fassq (Qcursor_type
, f
->param_alist
));
1795 if (cursor_in_echo_area
1796 && FRAME_HAS_MINIBUF_P (f
)
1797 && EQ (FRAME_MINIBUF_WINDOW (f
), echo_area_window
)
1798 && sw
== XWINDOW (echo_area_window
))
1799 new_cursor
= frame_desired_cursor
;
1802 struct buffer
*b
= XBUFFER (sw
->buffer
);
1804 if (EQ (b
->cursor_type
, Qt
))
1805 new_cursor
= frame_desired_cursor
;
1806 else if (NILP (b
->cursor_type
)) /* nil means no cursor */
1807 new_cursor
= Fcons (Qbar
, make_number (0));
1809 new_cursor
= b
->cursor_type
;
1812 IT_set_cursor_type (f
, new_cursor
);
1814 IT_cmgoto (f
); /* position cursor when update is done */
1817 /* Copy LEN glyphs displayed on a single line whose vertical position
1818 is YPOS, beginning at horizontal position XFROM to horizontal
1819 position XTO, by moving blocks in the video memory. Used by
1820 functions that insert and delete glyphs. */
1822 IT_copy_glyphs (int xfrom
, int xto
, size_t len
, int ypos
)
1824 /* The offsets of source and destination relative to the
1825 conventional memorty selector. */
1826 int from
= 2 * (xfrom
+ screen_size_X
* ypos
) + ScreenPrimary
;
1827 int to
= 2 * (xto
+ screen_size_X
* ypos
) + ScreenPrimary
;
1829 if (from
== to
|| len
<= 0)
1832 _farsetsel (_dos_ds
);
1834 /* The source and destination might overlap, so we need to move
1835 glyphs non-destructively. */
1838 for ( ; len
; from
+= 2, to
+= 2, len
--)
1839 _farnspokew (to
, _farnspeekw (from
));
1843 from
+= (len
- 1) * 2;
1844 to
+= (len
- 1) * 2;
1845 for ( ; len
; from
-= 2, to
-= 2, len
--)
1846 _farnspokew (to
, _farnspeekw (from
));
1848 if (screen_virtual_segment
)
1849 dosv_refresh_virtual_screen (ypos
* screen_size_X
* 2, screen_size_X
);
1852 /* Insert and delete glyphs. */
1854 IT_insert_glyphs (struct frame
*f
, struct glyph
*start
, int len
)
1856 int shift_by_width
= screen_size_X
- (new_pos_X
+ len
);
1858 /* Shift right the glyphs from the nominal cursor position to the
1859 end of this line. */
1860 IT_copy_glyphs (new_pos_X
, new_pos_X
+ len
, shift_by_width
, new_pos_Y
);
1862 /* Now write the glyphs to be inserted. */
1863 IT_write_glyphs (f
, start
, len
);
1867 IT_delete_glyphs (struct frame
*f
, int n
)
1872 /* set-window-configuration on window.c needs this. */
1874 x_set_menu_bar_lines (struct frame
*f
, Lisp_Object value
, Lisp_Object oldval
)
1876 set_menu_bar_lines (f
, value
, oldval
);
1879 /* This was copied from xfaces.c */
1881 extern Lisp_Object Qbackground_color
;
1882 extern Lisp_Object Qforeground_color
;
1883 Lisp_Object Qreverse
;
1884 extern Lisp_Object Qtitle
;
1886 /* IT_set_terminal_modes is called when emacs is started,
1887 resumed, and whenever the screen is redrawn! */
1890 IT_set_terminal_modes (struct terminal
*term
)
1892 struct tty_display_info
*tty
;
1894 /* If called with initial terminal, it's too early to do anything
1896 if (term
->type
== output_initial
)
1899 tty
= term
->display_info
.tty
;
1901 if (tty
->termscript
)
1902 fprintf (tty
->termscript
, "\n<SET_TERM>");
1904 screen_size_X
= ScreenCols ();
1905 screen_size_Y
= ScreenRows ();
1906 screen_size
= screen_size_X
* screen_size_Y
;
1908 new_pos_X
= new_pos_Y
= 0;
1909 current_pos_X
= current_pos_Y
= -1;
1911 if (term_setup_done
)
1913 term_setup_done
= 1;
1915 startup_screen_size_X
= screen_size_X
;
1916 startup_screen_size_Y
= screen_size_Y
;
1917 startup_screen_attrib
= ScreenAttrib
;
1919 /* Is DOS/V (or any other RSIS software which relocates
1920 the screen) installed? */
1922 unsigned short es_value
;
1925 regs
.h
.ah
= 0xfe; /* get relocated screen address */
1926 if (ScreenPrimary
== 0xb0000UL
|| ScreenPrimary
== 0xb8000UL
)
1927 regs
.x
.es
= (ScreenPrimary
>> 4) & 0xffff;
1928 else if (screen_old_address
) /* already switched to Japanese mode once */
1929 regs
.x
.es
= (screen_old_address
>> 4) & 0xffff;
1931 regs
.x
.es
= ScreenMode () == 7 ? 0xb000 : 0xb800;
1933 es_value
= regs
.x
.es
;
1934 __dpmi_int (0x10, ®s
);
1936 if (regs
.x
.es
!= es_value
)
1938 /* screen_old_address is only set if ScreenPrimary does NOT
1939 already point to the relocated buffer address returned by
1940 the Int 10h/AX=FEh call above. DJGPP v2.02 and later sets
1941 ScreenPrimary to that address at startup under DOS/V. */
1942 if (regs
.x
.es
!= (ScreenPrimary
>> 4) & 0xffff)
1943 screen_old_address
= ScreenPrimary
;
1944 screen_virtual_segment
= regs
.x
.es
;
1945 screen_virtual_offset
= regs
.x
.di
;
1946 ScreenPrimary
= (screen_virtual_segment
<< 4) + screen_virtual_offset
;
1950 ScreenGetCursor (&startup_pos_Y
, &startup_pos_X
);
1951 ScreenRetrieve (startup_screen_buffer
= xmalloc (screen_size
* 2));
1956 /* IT_reset_terminal_modes is called when emacs is
1957 suspended or killed. */
1960 IT_reset_terminal_modes (struct terminal
*term
)
1962 int display_row_start
= (int) ScreenPrimary
;
1963 int saved_row_len
= startup_screen_size_X
* 2;
1964 int update_row_len
= ScreenCols () * 2, current_rows
= ScreenRows ();
1965 int to_next_row
= update_row_len
;
1966 unsigned char *saved_row
= startup_screen_buffer
;
1967 int cursor_pos_X
= ScreenCols () - 1, cursor_pos_Y
= ScreenRows () - 1;
1968 struct tty_display_info
*tty
= term
->display_info
.tty
;
1970 if (tty
->termscript
)
1971 fprintf (tty
->termscript
, "\n<RESET_TERM>");
1973 if (!term_setup_done
)
1978 /* Leave the video system in the same state as we found it,
1979 as far as the blink/bright-background bit is concerned. */
1980 maybe_enable_blinking ();
1982 /* We have a situation here.
1983 We cannot just do ScreenUpdate(startup_screen_buffer) because
1984 the luser could have changed screen dimensions inside Emacs
1985 and failed (or didn't want) to restore them before killing
1986 Emacs. ScreenUpdate() uses the *current* screen dimensions and
1987 thus will happily use memory outside what was allocated for
1988 `startup_screen_buffer'.
1989 Thus we only restore as much as the current screen dimensions
1990 can hold, and clear the rest (if the saved screen is smaller than
1991 the current) with the color attribute saved at startup. The cursor
1992 is also restored within the visible dimensions. */
1994 ScreenAttrib
= startup_screen_attrib
;
1996 /* Don't restore the screen if we are exiting less than 2 seconds
1997 after startup: we might be crashing, and the screen might show
1998 some vital clues to what's wrong. */
1999 if (clock () - startup_time
>= 2*CLOCKS_PER_SEC
)
2002 if (screen_virtual_segment
)
2003 dosv_refresh_virtual_screen (0, screen_size
);
2005 if (update_row_len
> saved_row_len
)
2006 update_row_len
= saved_row_len
;
2007 if (current_rows
> startup_screen_size_Y
)
2008 current_rows
= startup_screen_size_Y
;
2010 if (tty
->termscript
)
2011 fprintf (tty
->termscript
, "<SCREEN RESTORED (dimensions=%dx%d)>\n",
2012 update_row_len
/ 2, current_rows
);
2014 while (current_rows
--)
2016 dosmemput (saved_row
, update_row_len
, display_row_start
);
2017 if (screen_virtual_segment
)
2018 dosv_refresh_virtual_screen (display_row_start
- ScreenPrimary
,
2019 update_row_len
/ 2);
2020 saved_row
+= saved_row_len
;
2021 display_row_start
+= to_next_row
;
2024 if (startup_pos_X
< cursor_pos_X
)
2025 cursor_pos_X
= startup_pos_X
;
2026 if (startup_pos_Y
< cursor_pos_Y
)
2027 cursor_pos_Y
= startup_pos_Y
;
2029 ScreenSetCursor (cursor_pos_Y
, cursor_pos_X
);
2030 xfree (startup_screen_buffer
);
2031 startup_screen_buffer
= NULL
;
2033 term_setup_done
= 0;
2037 IT_set_terminal_window (struct frame
*f
, int foo
)
2041 /* Remember the screen colors of the curent frame, to serve as the
2042 default colors for newly-created frames. */
2043 DEFUN ("msdos-remember-default-colors", Fmsdos_remember_default_colors
,
2044 Smsdos_remember_default_colors
, 1, 1, 0,
2045 doc
: /* Remember the screen colors of the current frame. */)
2050 CHECK_FRAME (frame
);
2053 /* This function is called after applying default-frame-alist to the
2054 initial frame. At that time, if reverse-colors option was
2055 specified in default-frame-alist, it was already applied, and
2056 frame colors are reversed. */
2057 initial_screen_colors
[0] = FRAME_FOREGROUND_PIXEL (f
);
2058 initial_screen_colors
[1] = FRAME_BACKGROUND_PIXEL (f
);
2062 IT_set_frame_parameters (struct frame
*f
, Lisp_Object alist
)
2065 int i
, j
, length
= XINT (Flength (alist
));
2067 = (Lisp_Object
*) alloca (length
* sizeof (Lisp_Object
));
2069 = (Lisp_Object
*) alloca (length
* sizeof (Lisp_Object
));
2070 /* Do we have to reverse the foreground and background colors? */
2071 int reverse
= EQ (Fcdr (Fassq (Qreverse
, f
->param_alist
)), Qt
);
2072 int redraw
= 0, fg_set
= 0, bg_set
= 0;
2073 unsigned long orig_fg
, orig_bg
;
2074 Lisp_Object frame_bg
, frame_fg
;
2075 struct tty_display_info
*tty
= FRAME_TTY (f
);
2077 /* If we are creating a new frame, begin with the original screen colors
2078 used for the initial frame. */
2079 if (!f
->default_face_done_p
2080 && initial_screen_colors
[0] != -1 && initial_screen_colors
[1] != -1)
2082 FRAME_FOREGROUND_PIXEL (f
) = initial_screen_colors
[0];
2083 FRAME_BACKGROUND_PIXEL (f
) = initial_screen_colors
[1];
2084 init_frame_faces (f
);
2085 f
->default_face_done_p
= 1;
2087 orig_fg
= reverse
? FRAME_BACKGROUND_PIXEL (f
) : FRAME_FOREGROUND_PIXEL (f
);
2088 orig_bg
= reverse
? FRAME_FOREGROUND_PIXEL (f
) : FRAME_BACKGROUND_PIXEL (f
);
2090 /* Extract parm names and values into those vectors. */
2092 for (tail
= alist
; CONSP (tail
); tail
= Fcdr (tail
))
2097 parms
[i
] = Fcar (elt
);
2098 CHECK_SYMBOL (parms
[i
]);
2099 values
[i
] = Fcdr (elt
);
2105 for (i
= 0; i
< j
; i
++)
2107 Lisp_Object prop
, val
;
2112 if (EQ (prop
, Qreverse
))
2113 reverse
= EQ (val
, Qt
);
2116 if (tty
->termscript
&& reverse
)
2117 fprintf (tty
->termscript
, "<INVERSE-VIDEO>\n");
2119 /* Now process the alist elements in reverse of specified order. */
2120 for (i
--; i
>= 0; i
--)
2122 Lisp_Object prop
, val
;
2127 if (EQ (prop
, Qforeground_color
))
2129 unsigned long new_color
= load_color (f
, NULL
, val
, reverse
2130 ? LFACE_BACKGROUND_INDEX
2131 : LFACE_FOREGROUND_INDEX
);
2132 if (new_color
!= FACE_TTY_DEFAULT_COLOR
2133 && new_color
!= FACE_TTY_DEFAULT_FG_COLOR
2134 && new_color
!= FACE_TTY_DEFAULT_BG_COLOR
)
2138 FRAME_FOREGROUND_PIXEL (f
) = new_color
;
2139 /* Make sure the foreground of the default face for
2140 this frame is changed as well. */
2141 update_face_from_frame_parameter (f
, Qforeground_color
, val
);
2143 if (tty
->termscript
)
2144 fprintf (tty
->termscript
, "<FGCOLOR %lu>\n", new_color
);
2148 FRAME_BACKGROUND_PIXEL (f
) = new_color
;
2149 update_face_from_frame_parameter (f
, Qbackground_color
, val
);
2151 if (tty
->termscript
)
2152 fprintf (tty
->termscript
, "<BGCOLOR %lu>\n", new_color
);
2157 else if (EQ (prop
, Qbackground_color
))
2159 unsigned long new_color
= load_color (f
, NULL
, val
, reverse
2160 ? LFACE_FOREGROUND_INDEX
2161 : LFACE_BACKGROUND_INDEX
);
2162 if (new_color
!= FACE_TTY_DEFAULT_COLOR
2163 && new_color
!= FACE_TTY_DEFAULT_FG_COLOR
2164 && new_color
!= FACE_TTY_DEFAULT_BG_COLOR
)
2168 FRAME_BACKGROUND_PIXEL (f
) = new_color
;
2169 /* Make sure the background of the default face for
2170 this frame is changed as well. */
2172 update_face_from_frame_parameter (f
, Qbackground_color
, val
);
2173 if (tty
->termscript
)
2174 fprintf (tty
->termscript
, "<BGCOLOR %lu>\n", new_color
);
2178 FRAME_FOREGROUND_PIXEL (f
) = new_color
;
2180 update_face_from_frame_parameter (f
, Qforeground_color
, val
);
2181 if (tty
->termscript
)
2182 fprintf (tty
->termscript
, "<FGCOLOR %lu>\n", new_color
);
2187 else if (EQ (prop
, Qtitle
))
2189 x_set_title (f
, val
);
2190 if (tty
->termscript
)
2191 fprintf (tty
->termscript
, "<TITLE: %s>\n", SDATA (val
));
2193 else if (EQ (prop
, Qcursor_type
))
2195 IT_set_cursor_type (f
, val
);
2196 if (tty
->termscript
)
2197 fprintf (tty
->termscript
, "<CTYPE: %s>\n",
2198 EQ (val
, Qbar
) || EQ (val
, Qhbar
)
2199 || CONSP (val
) && (EQ (XCAR (val
), Qbar
)
2200 || EQ (XCAR (val
), Qhbar
))
2203 else if (EQ (prop
, Qtty_type
))
2205 internal_terminal_init ();
2206 if (tty
->termscript
)
2207 fprintf (tty
->termscript
, "<TERM_INIT done, TTY_TYPE: %.*s>\n",
2208 SBYTES (val
), SDATA (val
));
2210 store_frame_param (f
, prop
, val
);
2213 /* If they specified "reverse", but not the colors, we need to swap
2214 the current frame colors. */
2221 FRAME_FOREGROUND_PIXEL (f
) = orig_bg
;
2222 update_face_from_frame_parameter (f
, Qforeground_color
,
2223 tty_color_name (f
, orig_bg
));
2228 FRAME_BACKGROUND_PIXEL (f
) = orig_fg
;
2229 update_face_from_frame_parameter (f
, Qbackground_color
,
2230 tty_color_name (f
, orig_fg
));
2237 face_change_count
++; /* forces xdisp.c to recompute basic faces */
2238 if (f
== SELECTED_FRAME())
2243 extern void init_frame_faces (FRAME_PTR
);
2245 #endif /* !HAVE_X_WINDOWS */
2248 /* Do we need the internal terminal? */
2251 internal_terminal_init (void)
2253 static int init_needed
= 1;
2254 char *term
= getenv ("TERM"), *colors
;
2255 struct frame
*sf
= SELECTED_FRAME();
2256 struct tty_display_info
*tty
;
2258 #ifdef HAVE_X_WINDOWS
2259 if (!inhibit_window_system
)
2263 /* If this is the initial terminal, we are done here. */
2264 if (sf
->output_method
== output_initial
)
2268 = (!noninteractive
) && term
&& !strcmp (term
, "internal");
2270 #ifndef HAVE_X_WINDOWS
2271 if (!internal_terminal
|| inhibit_window_system
)
2273 sf
->output_method
= output_termcap
;
2277 tty
= FRAME_TTY (sf
);
2278 current_kboard
->Vwindow_system
= Qpc
;
2279 sf
->output_method
= output_msdos_raw
;
2282 if (!tty
->termscript
&& getenv ("EMACSTEST"))
2283 tty
->termscript
= fopen (getenv ("EMACSTEST"), "wt");
2284 if (tty
->termscript
)
2286 time_t now
= time (NULL
);
2287 struct tm
*tnow
= localtime (&now
);
2290 strftime (tbuf
, sizeof (tbuf
) - 1, "%a %b %e %Y %H:%M:%S %Z", tnow
);
2291 fprintf (tty
->termscript
, "\nEmacs session started at %s\n", tbuf
);
2292 fprintf (tty
->termscript
, "=====================\n\n");
2295 Vinitial_window_system
= Qpc
;
2296 Vwindow_system_version
= make_number (23); /* RE Emacs version */
2297 tty
->terminal
->type
= output_msdos_raw
;
2299 /* If Emacs was dumped on DOS/V machine, forget the stale VRAM
2301 screen_old_address
= 0;
2303 /* Forget the stale screen colors as well. */
2304 initial_screen_colors
[0] = initial_screen_colors
[1] = -1;
2306 FRAME_BACKGROUND_PIXEL (SELECTED_FRAME ()) = 7; /* White */
2307 FRAME_FOREGROUND_PIXEL (SELECTED_FRAME ()) = 0; /* Black */
2309 colors
= getenv ("EMACSCOLORS");
2310 if (colors
&& strlen (colors
) >= 2)
2312 /* The colors use 4 bits each (we enable bright background). */
2313 if (isdigit (colors
[0]))
2315 else if (isxdigit (colors
[0]))
2316 colors
[0] -= (isupper (colors
[0]) ? 'A' : 'a') - 10;
2317 if (colors
[0] >= 0 && colors
[0] < 16)
2318 FRAME_FOREGROUND_PIXEL (SELECTED_FRAME ()) = colors
[0];
2319 if (isdigit (colors
[1]))
2321 else if (isxdigit (colors
[1]))
2322 colors
[1] -= (isupper (colors
[1]) ? 'A' : 'a') - 10;
2323 if (colors
[1] >= 0 && colors
[1] < 16)
2324 FRAME_BACKGROUND_PIXEL (SELECTED_FRAME ()) = colors
[1];
2326 the_only_display_info
.mouse_face_mouse_frame
= NULL
;
2327 the_only_display_info
.mouse_face_deferred_gc
= 0;
2328 the_only_display_info
.mouse_face_beg_row
=
2329 the_only_display_info
.mouse_face_beg_col
= -1;
2330 the_only_display_info
.mouse_face_end_row
=
2331 the_only_display_info
.mouse_face_end_col
= -1;
2332 the_only_display_info
.mouse_face_face_id
= DEFAULT_FACE_ID
;
2333 the_only_display_info
.mouse_face_window
= Qnil
;
2334 the_only_display_info
.mouse_face_mouse_x
=
2335 the_only_display_info
.mouse_face_mouse_y
= 0;
2336 the_only_display_info
.mouse_face_defer
= 0;
2337 the_only_display_info
.mouse_face_hidden
= 0;
2339 if (have_mouse
) /* detected in dos_ttraw, which see */
2341 have_mouse
= 1; /* enable mouse */
2343 mouse_setup_buttons (mouse_button_count
);
2344 tty
->terminal
->mouse_position_hook
= &mouse_get_pos
;
2348 if (tty
->termscript
&& screen_size
)
2349 fprintf (tty
->termscript
, "<SCREEN SAVED (dimensions=%dx%d)>\n",
2350 screen_size_X
, screen_size_Y
);
2352 init_frame_faces (sf
);
2359 initialize_msdos_display (struct terminal
*term
)
2361 term
->rif
= 0; /* we don't support window-based display */
2362 term
->cursor_to_hook
= term
->raw_cursor_to_hook
= IT_cursor_to
;
2363 term
->clear_to_end_hook
= IT_clear_to_end
;
2364 term
->clear_frame_hook
= IT_clear_screen
;
2365 term
->clear_end_of_line_hook
= IT_clear_end_of_line
;
2366 term
->ins_del_lines_hook
= 0;
2367 term
->insert_glyphs_hook
= IT_insert_glyphs
;
2368 term
->write_glyphs_hook
= IT_write_glyphs
;
2369 term
->delete_glyphs_hook
= IT_delete_glyphs
;
2370 term
->ring_bell_hook
= IT_ring_bell
;
2371 term
->reset_terminal_modes_hook
= IT_reset_terminal_modes
;
2372 term
->set_terminal_modes_hook
= IT_set_terminal_modes
;
2373 term
->set_terminal_window_hook
= IT_set_terminal_window
;
2374 term
->update_begin_hook
= IT_update_begin
;
2375 term
->update_end_hook
= IT_update_end
;
2376 term
->frame_up_to_date_hook
= IT_frame_up_to_date
;
2377 term
->mouse_position_hook
= 0; /* set later by dos_ttraw */
2378 term
->frame_rehighlight_hook
= 0;
2379 term
->frame_raise_lower_hook
= 0;
2380 term
->set_vertical_scroll_bar_hook
= 0;
2381 term
->condemn_scroll_bars_hook
= 0;
2382 term
->redeem_scroll_bar_hook
= 0;
2383 term
->judge_scroll_bars_hook
= 0;
2384 term
->read_socket_hook
= &tty_read_avail_input
; /* from keyboard.c */
2388 dos_get_saved_screen (char **screen
, int *rows
, int *cols
)
2390 #ifndef HAVE_X_WINDOWS
2391 *screen
= startup_screen_buffer
;
2392 *cols
= startup_screen_size_X
;
2393 *rows
= startup_screen_size_Y
;
2394 return *screen
!= (char *)0;
2400 #ifndef HAVE_X_WINDOWS
2402 /* We are not X, but we can emulate it well enough for our needs... */
2406 if (! FRAME_MSDOS_P (SELECTED_FRAME()))
2407 error ("Not running under a window system");
2413 /* ----------------------- Keyboard control ----------------------
2415 * Keymaps reflect the following keyboard layout:
2417 * 0 1 2 3 4 5 6 7 8 9 10 11 12 BS
2418 * TAB 15 16 17 18 19 20 21 22 23 24 25 26 (41)
2419 * CLOK 30 31 32 33 34 35 36 37 38 39 40 (41) RET
2420 * SH () 45 46 47 48 49 50 51 52 53 54 SHIFT
2424 #define Ignore 0x0000
2425 #define Normal 0x0000 /* normal key - alt changes scan-code */
2426 #define FctKey 0x1000 /* func key if c == 0, else c */
2427 #define Special 0x2000 /* func key even if c != 0 */
2428 #define ModFct 0x3000 /* special if mod-keys, else 'c' */
2429 #define Map 0x4000 /* alt scan-code, map to unshift/shift key */
2430 #define KeyPad 0x5000 /* map to insert/kp-0 depending on c == 0xe0 */
2431 #define Grey 0x6000 /* Grey keypad key */
2433 #define Alt 0x0100 /* alt scan-code */
2434 #define Ctrl 0x0200 /* ctrl scan-code */
2435 #define Shift 0x0400 /* shift scan-code */
2437 static int extended_kbd
; /* 101 (102) keyboard present. */
2439 struct kbd_translate
{
2442 unsigned short code
;
2445 struct dos_keyboard_map
2450 struct kbd_translate
*translate_table
;
2454 static struct dos_keyboard_map us_keyboard
= {
2456 /* 01234567890123456789012345678901234567890 12345678901234 */
2457 "`1234567890-= qwertyuiop[] asdfghjkl;'\\ zxcvbnm,./ ",
2458 /* 0123456789012345678901234567890123456789 012345678901234 */
2459 "~!@#$%^&*()_+ QWERTYUIOP{} ASDFGHJKL:\"| ZXCVBNM<>? ",
2460 0, /* no Alt-Gr key */
2461 0 /* no translate table */
2464 static struct dos_keyboard_map fr_keyboard
= {
2466 /* 012 3456789012345678901234567890123456789012345678901234 */
2467 "ý&\82\",(-\8a_\80\85)= azertyuiop^$ qsdfghjklm\97* wxcvbnm;:! ",
2468 /* 0123456789012345678901234567890123456789012345678901234 */
2469 " 1234567890ø+ AZERTYUIOPù\9c QSDFGHJKLM%æ WXCVBN?./õ ",
2470 /* 01234567 89012345678901234567890123456789012345678901234 */
2472 0 /* no translate table */
2476 * Italian keyboard support, country code 39.
2479 * added also {,},` as, respectively, AltGr-8, AltGr-9, AltGr-'
2480 * Donated by Stefano Brozzi <brozzis@mag00.cedi.unipr.it>
2483 static struct kbd_translate it_kbd_translate_table
[] = {
2484 { 0x56, 0x3c, Normal
| 13 },
2485 { 0x56, 0x3e, Normal
| 27 },
2488 static struct dos_keyboard_map it_keyboard
= {
2490 /* 0 123456789012345678901234567890123456789012345678901234 */
2491 "\\1234567890'\8d< qwertyuiop\8a+> asdfghjkl\95\85\97 zxcvbnm,.- ",
2492 /* 01 23456789012345678901234567890123456789012345678901234 */
2493 "|!\"\9c$%&/()=?^> QWERTYUIOP\82* ASDFGHJKL\87øõ ZXCVBNM;:_ ",
2494 /* 0123456789012345678901234567890123456789012345678901234 */
2496 it_kbd_translate_table
2499 static struct dos_keyboard_map dk_keyboard
= {
2501 /* 0123456789012345678901234567890123456789012345678901234 */
2502 "«1234567890+| qwertyuiop\86~ asdfghjkl\91\9b' zxcvbnm,.- ",
2503 /* 01 23456789012345678901234567890123456789012345678901234 */
2504 "õ!\"#$%&/()=?` QWERTYUIOP\8f^ ASDFGHJKL\92\9d* ZXCVBNM;:_ ",
2505 /* 0123456789012345678901234567890123456789012345678901234 */
2507 0 /* no translate table */
2510 static struct kbd_translate jp_kbd_translate_table
[] = {
2511 { 0x73, 0x5c, Normal
| 0 },
2512 { 0x73, 0x5f, Normal
| 0 },
2513 { 0x73, 0x1c, Map
| 0 },
2514 { 0x7d, 0x5c, Normal
| 13 },
2515 { 0x7d, 0x7c, Normal
| 13 },
2516 { 0x7d, 0x1c, Map
| 13 },
2519 static struct dos_keyboard_map jp_keyboard
= {
2521 /* 0123456789012 345678901234567890123456789012345678901234 */
2522 "\\1234567890-^\\ qwertyuiop@[ asdfghjkl;:] zxcvbnm,./ ",
2523 /* 01 23456789012345678901234567890123456789012345678901234 */
2524 "_!\"#$%&'()~=~| QWERTYUIOP`{ ASDFGHJKL+*} ZXCVBNM<>? ",
2525 0, /* no Alt-Gr key */
2526 jp_kbd_translate_table
2529 static struct keyboard_layout_list
2532 struct dos_keyboard_map
*keyboard_map
;
2533 } keyboard_layout_list
[] =
2542 static struct dos_keyboard_map
*keyboard
;
2543 static int keyboard_map_all
;
2544 static int international_keyboard
;
2547 dos_set_keyboard (int code
, int always
)
2550 _go32_dpmi_registers regs
;
2552 /* See if Keyb.Com is installed (for international keyboard support).
2553 Note: calling Int 2Fh via int86 wedges the DOS box on some versions
2554 of Windows 9X! So don't do that! */
2556 regs
.x
.ss
= regs
.x
.sp
= regs
.x
.flags
= 0;
2557 _go32_dpmi_simulate_int (0x2f, ®s
);
2558 if (regs
.h
.al
== 0xff)
2559 international_keyboard
= 1;
2561 /* Initialize to US settings, for countries that don't have their own. */
2562 keyboard
= keyboard_layout_list
[0].keyboard_map
;
2563 keyboard_map_all
= always
;
2564 dos_keyboard_layout
= 1;
2566 for (i
= 0; i
< (sizeof (keyboard_layout_list
)/sizeof (struct keyboard_layout_list
)); i
++)
2567 if (code
== keyboard_layout_list
[i
].country_code
)
2569 keyboard
= keyboard_layout_list
[i
].keyboard_map
;
2570 keyboard_map_all
= always
;
2571 dos_keyboard_layout
= code
;
2579 unsigned char char_code
; /* normal code */
2580 unsigned char meta_code
; /* M- code */
2581 unsigned char keypad_code
; /* keypad code */
2582 unsigned char editkey_code
; /* edit key */
2583 } keypad_translate_map
[] = {
2584 '0', '0', 0xb0, /* kp-0 */ 0x63, /* insert */
2585 '1', '1', 0xb1, /* kp-1 */ 0x57, /* end */
2586 '2', '2', 0xb2, /* kp-2 */ 0x54, /* down */
2587 '3', '3', 0xb3, /* kp-3 */ 0x56, /* next */
2588 '4', '4', 0xb4, /* kp-4 */ 0x51, /* left */
2589 '5', '5', 0xb5, /* kp-5 */ 0xb5, /* kp-5 */
2590 '6', '6', 0xb6, /* kp-6 */ 0x53, /* right */
2591 '7', '7', 0xb7, /* kp-7 */ 0x50, /* home */
2592 '8', '8', 0xb8, /* kp-8 */ 0x52, /* up */
2593 '9', '9', 0xb9, /* kp-9 */ 0x55, /* prior */
2594 '.', '-', 0xae, /* kp-decimal */ 0xff /* delete */
2599 unsigned char char_code
; /* normal code */
2600 unsigned char keypad_code
; /* keypad code */
2601 } grey_key_translate_map
[] = {
2602 '/', 0xaf, /* kp-decimal */
2603 '*', 0xaa, /* kp-multiply */
2604 '-', 0xad, /* kp-subtract */
2605 '+', 0xab, /* kp-add */
2606 '\r', 0x8d /* kp-enter */
2609 static unsigned short
2610 ibmpc_translate_map
[] =
2612 /* --------------- 00 to 0f --------------- */
2613 Normal
| 0xff, /* Ctrl Break + Alt-NNN */
2614 Alt
| ModFct
| 0x1b, /* Escape */
2615 Normal
| 1, /* '1' */
2616 Normal
| 2, /* '2' */
2617 Normal
| 3, /* '3' */
2618 Normal
| 4, /* '4' */
2619 Normal
| 5, /* '5' */
2620 Normal
| 6, /* '6' */
2621 Normal
| 7, /* '7' */
2622 Normal
| 8, /* '8' */
2623 Normal
| 9, /* '9' */
2624 Normal
| 10, /* '0' */
2625 Normal
| 11, /* '-' */
2626 Normal
| 12, /* '=' */
2627 Special
| 0x08, /* Backspace */
2628 ModFct
| 0x74, /* Tab/Backtab */
2630 /* --------------- 10 to 1f --------------- */
2643 ModFct
| 0x0d, /* Return */
2648 /* --------------- 20 to 2f --------------- */
2657 Map
| 40, /* '\'' */
2659 Ignore
, /* Left shift */
2660 Map
| 41, /* '\\' */
2666 /* --------------- 30 to 3f --------------- */
2673 Ignore
, /* Right shift */
2674 Grey
| 1, /* Grey * */
2676 Normal
| 55, /* ' ' */
2677 Ignore
, /* Caps Lock */
2678 FctKey
| 0xbe, /* F1 */
2679 FctKey
| 0xbf, /* F2 */
2680 FctKey
| 0xc0, /* F3 */
2681 FctKey
| 0xc1, /* F4 */
2682 FctKey
| 0xc2, /* F5 */
2684 /* --------------- 40 to 4f --------------- */
2685 FctKey
| 0xc3, /* F6 */
2686 FctKey
| 0xc4, /* F7 */
2687 FctKey
| 0xc5, /* F8 */
2688 FctKey
| 0xc6, /* F9 */
2689 FctKey
| 0xc7, /* F10 */
2690 Ignore
, /* Num Lock */
2691 Ignore
, /* Scroll Lock */
2692 KeyPad
| 7, /* Home */
2693 KeyPad
| 8, /* Up */
2694 KeyPad
| 9, /* Page Up */
2695 Grey
| 2, /* Grey - */
2696 KeyPad
| 4, /* Left */
2697 KeyPad
| 5, /* Keypad 5 */
2698 KeyPad
| 6, /* Right */
2699 Grey
| 3, /* Grey + */
2700 KeyPad
| 1, /* End */
2702 /* --------------- 50 to 5f --------------- */
2703 KeyPad
| 2, /* Down */
2704 KeyPad
| 3, /* Page Down */
2705 KeyPad
| 0, /* Insert */
2706 KeyPad
| 10, /* Delete */
2707 Shift
| FctKey
| 0xbe, /* (Shift) F1 */
2708 Shift
| FctKey
| 0xbf, /* (Shift) F2 */
2709 Shift
| FctKey
| 0xc0, /* (Shift) F3 */
2710 Shift
| FctKey
| 0xc1, /* (Shift) F4 */
2711 Shift
| FctKey
| 0xc2, /* (Shift) F5 */
2712 Shift
| FctKey
| 0xc3, /* (Shift) F6 */
2713 Shift
| FctKey
| 0xc4, /* (Shift) F7 */
2714 Shift
| FctKey
| 0xc5, /* (Shift) F8 */
2715 Shift
| FctKey
| 0xc6, /* (Shift) F9 */
2716 Shift
| FctKey
| 0xc7, /* (Shift) F10 */
2717 Ctrl
| FctKey
| 0xbe, /* (Ctrl) F1 */
2718 Ctrl
| FctKey
| 0xbf, /* (Ctrl) F2 */
2720 /* --------------- 60 to 6f --------------- */
2721 Ctrl
| FctKey
| 0xc0, /* (Ctrl) F3 */
2722 Ctrl
| FctKey
| 0xc1, /* (Ctrl) F4 */
2723 Ctrl
| FctKey
| 0xc2, /* (Ctrl) F5 */
2724 Ctrl
| FctKey
| 0xc3, /* (Ctrl) F6 */
2725 Ctrl
| FctKey
| 0xc4, /* (Ctrl) F7 */
2726 Ctrl
| FctKey
| 0xc5, /* (Ctrl) F8 */
2727 Ctrl
| FctKey
| 0xc6, /* (Ctrl) F9 */
2728 Ctrl
| FctKey
| 0xc7, /* (Ctrl) F10 */
2729 Alt
| FctKey
| 0xbe, /* (Alt) F1 */
2730 Alt
| FctKey
| 0xbf, /* (Alt) F2 */
2731 Alt
| FctKey
| 0xc0, /* (Alt) F3 */
2732 Alt
| FctKey
| 0xc1, /* (Alt) F4 */
2733 Alt
| FctKey
| 0xc2, /* (Alt) F5 */
2734 Alt
| FctKey
| 0xc3, /* (Alt) F6 */
2735 Alt
| FctKey
| 0xc4, /* (Alt) F7 */
2736 Alt
| FctKey
| 0xc5, /* (Alt) F8 */
2738 /* --------------- 70 to 7f --------------- */
2739 Alt
| FctKey
| 0xc6, /* (Alt) F9 */
2740 Alt
| FctKey
| 0xc7, /* (Alt) F10 */
2741 Ctrl
| FctKey
| 0x6d, /* (Ctrl) Sys Rq */
2742 Ctrl
| KeyPad
| 4, /* (Ctrl) Left */
2743 Ctrl
| KeyPad
| 6, /* (Ctrl) Right */
2744 Ctrl
| KeyPad
| 1, /* (Ctrl) End */
2745 Ctrl
| KeyPad
| 3, /* (Ctrl) Page Down */
2746 Ctrl
| KeyPad
| 7, /* (Ctrl) Home */
2747 Alt
| Map
| 1, /* '1' */
2748 Alt
| Map
| 2, /* '2' */
2749 Alt
| Map
| 3, /* '3' */
2750 Alt
| Map
| 4, /* '4' */
2751 Alt
| Map
| 5, /* '5' */
2752 Alt
| Map
| 6, /* '6' */
2753 Alt
| Map
| 7, /* '7' */
2754 Alt
| Map
| 8, /* '8' */
2756 /* --------------- 80 to 8f --------------- */
2757 Alt
| Map
| 9, /* '9' */
2758 Alt
| Map
| 10, /* '0' */
2759 Alt
| Map
| 11, /* '-' */
2760 Alt
| Map
| 12, /* '=' */
2761 Ctrl
| KeyPad
| 9, /* (Ctrl) Page Up */
2762 FctKey
| 0xc8, /* F11 */
2763 FctKey
| 0xc9, /* F12 */
2764 Shift
| FctKey
| 0xc8, /* (Shift) F11 */
2765 Shift
| FctKey
| 0xc9, /* (Shift) F12 */
2766 Ctrl
| FctKey
| 0xc8, /* (Ctrl) F11 */
2767 Ctrl
| FctKey
| 0xc9, /* (Ctrl) F12 */
2768 Alt
| FctKey
| 0xc8, /* (Alt) F11 */
2769 Alt
| FctKey
| 0xc9, /* (Alt) F12 */
2770 Ctrl
| KeyPad
| 8, /* (Ctrl) Up */
2771 Ctrl
| Grey
| 2, /* (Ctrl) Grey - */
2772 Ctrl
| KeyPad
| 5, /* (Ctrl) Keypad 5 */
2774 /* --------------- 90 to 9f --------------- */
2775 Ctrl
| Grey
| 3, /* (Ctrl) Grey + */
2776 Ctrl
| KeyPad
| 2, /* (Ctrl) Down */
2777 Ctrl
| KeyPad
| 0, /* (Ctrl) Insert */
2778 Ctrl
| KeyPad
| 10, /* (Ctrl) Delete */
2779 Ctrl
| FctKey
| 0x09, /* (Ctrl) Tab */
2780 Ctrl
| Grey
| 0, /* (Ctrl) Grey / */
2781 Ctrl
| Grey
| 1, /* (Ctrl) Grey * */
2782 Alt
| FctKey
| 0x50, /* (Alt) Home */
2783 Alt
| FctKey
| 0x52, /* (Alt) Up */
2784 Alt
| FctKey
| 0x55, /* (Alt) Page Up */
2785 Ignore
, /* NO KEY */
2786 Alt
| FctKey
| 0x51, /* (Alt) Left */
2787 Ignore
, /* NO KEY */
2788 Alt
| FctKey
| 0x53, /* (Alt) Right */
2789 Ignore
, /* NO KEY */
2790 Alt
| FctKey
| 0x57, /* (Alt) End */
2792 /* --------------- a0 to af --------------- */
2793 Alt
| KeyPad
| 2, /* (Alt) Down */
2794 Alt
| KeyPad
| 3, /* (Alt) Page Down */
2795 Alt
| KeyPad
| 0, /* (Alt) Insert */
2796 Alt
| KeyPad
| 10, /* (Alt) Delete */
2797 Alt
| Grey
| 0, /* (Alt) Grey / */
2798 Alt
| FctKey
| 0x09, /* (Alt) Tab */
2799 Alt
| Grey
| 4 /* (Alt) Keypad Enter */
2802 /* These bit-positions corresponds to values returned by BIOS */
2803 #define SHIFT_P 0x0003 /* two bits! */
2804 #define CTRL_P 0x0004
2805 #define ALT_P 0x0008
2806 #define SCRLOCK_P 0x0010
2807 #define NUMLOCK_P 0x0020
2808 #define CAPSLOCK_P 0x0040
2809 #define ALT_GR_P 0x0800
2810 #define SUPER_P 0x4000 /* pseudo */
2811 #define HYPER_P 0x8000 /* pseudo */
2814 dos_get_modifiers (int *keymask
)
2817 int mask
, modifiers
= 0;
2819 /* Calculate modifier bits */
2820 regs
.h
.ah
= extended_kbd
? 0x12 : 0x02;
2821 int86 (0x16, ®s
, ®s
);
2825 mask
= regs
.h
.al
& (SHIFT_P
| CTRL_P
| ALT_P
|
2826 SCRLOCK_P
| NUMLOCK_P
| CAPSLOCK_P
);
2830 mask
= regs
.h
.al
& (SHIFT_P
|
2831 SCRLOCK_P
| NUMLOCK_P
| CAPSLOCK_P
);
2833 /* Do not break international keyboard support. */
2834 /* When Keyb.Com is loaded, the right Alt key is */
2835 /* used for accessing characters like { and } */
2836 if (regs
.h
.ah
& 2) /* Left ALT pressed ? */
2839 if ((regs
.h
.ah
& 8) != 0) /* Right ALT pressed ? */
2842 if (dos_hyper_key
== 1)
2845 modifiers
|= hyper_modifier
;
2847 else if (dos_super_key
== 1)
2850 modifiers
|= super_modifier
;
2852 else if (!international_keyboard
)
2854 /* If Keyb.Com is NOT installed, let Right Alt behave
2855 like the Left Alt. */
2861 if (regs
.h
.ah
& 1) /* Left CTRL pressed ? */
2864 if (regs
.h
.ah
& 4) /* Right CTRL pressed ? */
2866 if (dos_hyper_key
== 2)
2869 modifiers
|= hyper_modifier
;
2871 else if (dos_super_key
== 2)
2874 modifiers
|= super_modifier
;
2882 modifiers
|= shift_modifier
;
2884 modifiers
|= ctrl_modifier
;
2886 modifiers
|= meta_modifier
;
2893 #define NUM_RECENT_DOSKEYS (100)
2894 int recent_doskeys_index
; /* Index for storing next element into recent_doskeys */
2895 int total_doskeys
; /* Total number of elements stored into recent_doskeys */
2896 Lisp_Object recent_doskeys
; /* A vector, holding the last 100 keystrokes */
2898 DEFUN ("recent-doskeys", Frecent_doskeys
, Srecent_doskeys
, 0, 0, 0,
2899 doc
: /* Return vector of last 100 keyboard input values seen in dos_rawgetc.
2900 Each input key receives two values in this vector: first the ASCII code,
2901 and then the scan code. */)
2904 Lisp_Object val
, *keys
= XVECTOR (recent_doskeys
)->contents
;
2906 if (total_doskeys
< NUM_RECENT_DOSKEYS
)
2907 return Fvector (total_doskeys
, keys
);
2910 val
= Fvector (NUM_RECENT_DOSKEYS
, keys
);
2911 memcpy (XVECTOR (val
)->contents
, keys
+ recent_doskeys_index
,
2912 (NUM_RECENT_DOSKEYS
- recent_doskeys_index
) * sizeof (Lisp_Object
));
2913 memcpy (XVECTOR (val
)->contents
+ NUM_RECENT_DOSKEYS
- recent_doskeys_index
,
2914 keys
, recent_doskeys_index
* sizeof (Lisp_Object
));
2919 /* Get a char from keyboard. Function keys are put into the event queue. */
2923 struct input_event event
;
2925 struct tty_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (SELECTED_FRAME());
2928 #ifndef HAVE_X_WINDOWS
2929 /* Maybe put the cursor where it should be. */
2930 IT_cmgoto (SELECTED_FRAME());
2933 /* The following condition is equivalent to `kbhit ()', except that
2934 it uses the bios to do its job. This pleases DESQview/X. */
2935 while ((regs
.h
.ah
= extended_kbd
? 0x11 : 0x01),
2936 int86 (0x16, ®s
, ®s
),
2937 (regs
.x
.flags
& 0x40) == 0)
2940 register unsigned char c
;
2941 int modifiers
, sc
, code
= -1, mask
, kp_mode
;
2943 regs
.h
.ah
= extended_kbd
? 0x10 : 0x00;
2944 int86 (0x16, ®s
, ®s
);
2949 XVECTOR (recent_doskeys
)->contents
[recent_doskeys_index
++]
2951 if (recent_doskeys_index
== NUM_RECENT_DOSKEYS
)
2952 recent_doskeys_index
= 0;
2953 XVECTOR (recent_doskeys
)->contents
[recent_doskeys_index
++]
2955 if (recent_doskeys_index
== NUM_RECENT_DOSKEYS
)
2956 recent_doskeys_index
= 0;
2958 modifiers
= dos_get_modifiers (&mask
);
2960 #ifndef HAVE_X_WINDOWS
2961 if (!NILP (Vdos_display_scancodes
))
2964 sprintf (buf
, "%02x:%02x*%04x",
2965 (unsigned) (sc
&0xff), (unsigned) c
, mask
);
2966 dos_direct_output (screen_size_Y
- 2, screen_size_X
- 12, buf
, 10);
2974 case 10: /* Ctrl Grey Enter */
2975 code
= Ctrl
| Grey
| 4;
2977 case 13: /* Grey Enter */
2980 case '/': /* Grey / */
2990 /* Try the keyboard-private translation table first. */
2991 if (keyboard
->translate_table
)
2993 struct kbd_translate
*p
= keyboard
->translate_table
;
2997 if (p
->sc
== sc
&& p
->ch
== c
)
3005 /* If the private table didn't translate it, use the general
3009 if (sc
>= (sizeof (ibmpc_translate_map
) / sizeof (short)))
3011 if ((code
= ibmpc_translate_map
[sc
]) == Ignore
)
3018 /* We only look at the keyboard Ctrl/Shift/Alt keys when
3019 Emacs is ready to read a key. Therefore, if they press
3020 `Alt-x' when Emacs is busy, by the time we get to
3021 `dos_get_modifiers', they might have already released the
3022 Alt key, and Emacs gets just `x', which is BAD.
3023 However, for keys with the `Map' property set, the ASCII
3024 code returns zero only if Alt is pressed. So, when we DON'T
3025 have to support international_keyboard, we don't have to
3026 distinguish between the left and right Alt keys, and we
3027 can set the META modifier for any keys with the `Map'
3028 property if they return zero ASCII code (c = 0). */
3030 || ( (code
& 0xf000) == Map
&& !international_keyboard
))
3031 modifiers
|= meta_modifier
;
3033 modifiers
|= ctrl_modifier
;
3035 modifiers
|= shift_modifier
;
3038 switch (code
& 0xf000)
3041 if (c
&& !(mask
& (SHIFT_P
| ALT_P
| CTRL_P
| HYPER_P
| SUPER_P
)))
3043 c
= 0; /* Special */
3056 if (c
== 0) /* ctrl-break */
3058 return c
; /* ALT-nnn */
3060 if (!keyboard_map_all
)
3069 if (c
&& !(mask
& ALT_P
) && !((mask
& SHIFT_P
) && (mask
& CTRL_P
)))
3070 if (!keyboard_map_all
)
3074 if (mask
& ALT_P
&& code
<= 10 && code
> 0 && dos_keypad_mode
& 0x200)
3075 mask
|= SHIFT_P
; /* ALT-1 => M-! etc. */
3079 code
= keyboard
->shifted
[code
];
3081 modifiers
&= ~shift_modifier
;
3084 if ((mask
& ALT_GR_P
) && keyboard
->alt_gr
&& keyboard
->alt_gr
[code
] != ' ')
3085 code
= keyboard
->alt_gr
[code
];
3087 code
= keyboard
->unshifted
[code
];
3092 if (c
== 0xe0) /* edit key */
3095 if ((mask
& (NUMLOCK_P
|CTRL_P
|SHIFT_P
|ALT_P
)) == NUMLOCK_P
) /* numlock on */
3096 kp_mode
= dos_keypad_mode
& 0x03;
3098 kp_mode
= (dos_keypad_mode
>> 4) & 0x03;
3103 if (code
== 10 && dos_decimal_point
)
3104 return dos_decimal_point
;
3105 return keypad_translate_map
[code
].char_code
;
3108 code
= 0xff00 | keypad_translate_map
[code
].keypad_code
;
3112 code
= keypad_translate_map
[code
].meta_code
;
3113 modifiers
= meta_modifier
;
3117 code
= 0xff00 | keypad_translate_map
[code
].editkey_code
;
3124 kp_mode
= ((mask
& (NUMLOCK_P
|CTRL_P
|SHIFT_P
|ALT_P
)) == NUMLOCK_P
) ? 0x04 : 0x40;
3125 if (dos_keypad_mode
& kp_mode
)
3126 code
= 0xff00 | grey_key_translate_map
[code
].keypad_code
;
3128 code
= grey_key_translate_map
[code
].char_code
;
3136 if (!dpyinfo
->mouse_face_hidden
&& INTEGERP (Vmouse_highlight
))
3138 clear_mouse_face (dpyinfo
);
3139 dpyinfo
->mouse_face_hidden
= 1;
3143 event
.kind
= NON_ASCII_KEYSTROKE_EVENT
;
3145 event
.kind
= ASCII_KEYSTROKE_EVENT
;
3147 event
.modifiers
= modifiers
;
3148 event
.frame_or_window
= selected_frame
;
3150 event
.timestamp
= event_timestamp ();
3151 kbd_buffer_store_event (&event
);
3154 if (have_mouse
> 0 && !mouse_preempted
)
3156 int but
, press
, x
, y
, ok
;
3157 int mouse_prev_x
= mouse_last_x
, mouse_prev_y
= mouse_last_y
;
3158 Lisp_Object mouse_window
= Qnil
;
3160 /* Check for mouse movement *before* buttons. */
3161 mouse_check_moved ();
3163 /* If the mouse moved from the spot of its last sighting, we
3164 might need to update mouse highlight. */
3165 if (mouse_last_x
!= mouse_prev_x
|| mouse_last_y
!= mouse_prev_y
)
3167 if (dpyinfo
->mouse_face_hidden
)
3169 dpyinfo
->mouse_face_hidden
= 0;
3170 clear_mouse_face (dpyinfo
);
3173 /* Generate SELECT_WINDOW_EVENTs when needed. */
3174 if (!NILP (Vmouse_autoselect_window
))
3176 mouse_window
= window_from_coordinates (SELECTED_FRAME(),
3180 /* A window will be selected only when it is not
3181 selected now, and the last mouse movement event was
3182 not in it. A minibuffer window will be selected iff
3184 if (WINDOWP (mouse_window
)
3185 && !EQ (mouse_window
, last_mouse_window
)
3186 && !EQ (mouse_window
, selected_window
))
3188 event
.kind
= SELECT_WINDOW_EVENT
;
3189 event
.frame_or_window
= mouse_window
;
3191 event
.timestamp
= event_timestamp ();
3192 kbd_buffer_store_event (&event
);
3194 last_mouse_window
= mouse_window
;
3197 last_mouse_window
= Qnil
;
3199 previous_help_echo_string
= help_echo_string
;
3200 help_echo_string
= help_echo_object
= help_echo_window
= Qnil
;
3202 IT_note_mouse_highlight (SELECTED_FRAME(),
3203 mouse_last_x
, mouse_last_y
);
3204 /* If the contents of the global variable help_echo has
3205 changed, generate a HELP_EVENT. */
3206 if (!NILP (help_echo_string
) || !NILP (previous_help_echo_string
))
3208 event
.kind
= HELP_EVENT
;
3209 event
.frame_or_window
= selected_frame
;
3210 event
.arg
= help_echo_object
;
3211 event
.x
= WINDOWP (help_echo_window
)
3212 ? help_echo_window
: selected_frame
;
3213 event
.y
= help_echo_string
;
3214 event
.timestamp
= event_timestamp ();
3215 event
.code
= help_echo_pos
;
3216 kbd_buffer_store_event (&event
);
3220 for (but
= 0; but
< NUM_MOUSE_BUTTONS
; but
++)
3221 for (press
= 0; press
< 2; press
++)
3223 int button_num
= but
;
3226 ok
= mouse_pressed (but
, &x
, &y
);
3228 ok
= mouse_released (but
, &x
, &y
);
3231 /* Allow a simultaneous press/release of Mouse-1 and
3232 Mouse-2 to simulate Mouse-3 on two-button mice. */
3233 if (mouse_button_count
== 2 && but
< 2)
3235 int x2
, y2
; /* don't clobber original coordinates */
3237 /* If only one button is pressed, wait 100 msec and
3238 check again. This way, Speedy Gonzales isn't
3239 punished, while the slow get their chance. */
3240 if (press
&& mouse_pressed (1-but
, &x2
, &y2
)
3241 || !press
&& mouse_released (1-but
, &x2
, &y2
))
3246 if (press
&& mouse_pressed (1-but
, &x2
, &y2
)
3247 || !press
&& mouse_released (1-but
, &x2
, &y2
))
3252 event
.kind
= MOUSE_CLICK_EVENT
;
3253 event
.code
= button_num
;
3254 event
.modifiers
= dos_get_modifiers (0)
3255 | (press
? down_modifier
: up_modifier
);
3256 event
.x
= make_number (x
);
3257 event
.y
= make_number (y
);
3258 event
.frame_or_window
= selected_frame
;
3260 event
.timestamp
= event_timestamp ();
3261 kbd_buffer_store_event (&event
);
3269 static int prev_get_char
= -1;
3271 /* Return 1 if a key is ready to be read without suspending execution. */
3275 if (prev_get_char
!= -1)
3278 return ((prev_get_char
= dos_rawgetc ()) != -1);
3281 /* Read a key. Return -1 if no key is ready. */
3285 if (prev_get_char
!= -1)
3287 int c
= prev_get_char
;
3292 return dos_rawgetc ();
3295 #ifndef HAVE_X_WINDOWS
3297 /* Simulation of X's menus. Nothing too fancy here -- just make it work
3300 Actually, I don't know the meaning of all the parameters of the functions
3301 here -- I only know how they are called by xmenu.c. I could of course
3302 grab the nearest Xlib manual (down the hall, second-to-last door on the
3303 left), but I don't think it's worth the effort. */
3305 /* These hold text of the current and the previous menu help messages. */
3306 static char *menu_help_message
, *prev_menu_help_message
;
3307 /* Pane number and item number of the menu item which generated the
3308 last menu help message. */
3309 static int menu_help_paneno
, menu_help_itemno
;
3312 IT_menu_create (void)
3316 menu
= (XMenu
*) xmalloc (sizeof (XMenu
));
3317 menu
->allocated
= menu
->count
= menu
->panecount
= menu
->width
= 0;
3321 /* Allocate some (more) memory for MENU ensuring that there is room for one
3325 IT_menu_make_room (XMenu
*menu
)
3327 if (menu
->allocated
== 0)
3329 int count
= menu
->allocated
= 10;
3330 menu
->text
= (char **) xmalloc (count
* sizeof (char *));
3331 menu
->submenu
= (XMenu
**) xmalloc (count
* sizeof (XMenu
*));
3332 menu
->panenumber
= (int *) xmalloc (count
* sizeof (int));
3333 menu
->help_text
= (char **) xmalloc (count
* sizeof (char *));
3335 else if (menu
->allocated
== menu
->count
)
3337 int count
= menu
->allocated
= menu
->allocated
+ 10;
3339 = (char **) xrealloc (menu
->text
, count
* sizeof (char *));
3341 = (XMenu
**) xrealloc (menu
->submenu
, count
* sizeof (XMenu
*));
3343 = (int *) xrealloc (menu
->panenumber
, count
* sizeof (int));
3345 = (char **) xrealloc (menu
->help_text
, count
* sizeof (char *));
3349 /* Search the given menu structure for a given pane number. */
3352 IT_menu_search_pane (XMenu
*menu
, int pane
)
3357 for (i
= 0; i
< menu
->count
; i
++)
3358 if (menu
->submenu
[i
])
3360 if (pane
== menu
->panenumber
[i
])
3361 return menu
->submenu
[i
];
3362 if ((try = IT_menu_search_pane (menu
->submenu
[i
], pane
)))
3368 /* Determine how much screen space a given menu needs. */
3371 IT_menu_calc_size (XMenu
*menu
, int *width
, int *height
)
3373 int i
, h2
, w2
, maxsubwidth
, maxheight
;
3376 maxheight
= menu
->count
;
3377 for (i
= 0; i
< menu
->count
; i
++)
3379 if (menu
->submenu
[i
])
3381 IT_menu_calc_size (menu
->submenu
[i
], &w2
, &h2
);
3382 if (w2
> maxsubwidth
) maxsubwidth
= w2
;
3383 if (i
+ h2
> maxheight
) maxheight
= i
+ h2
;
3386 *width
= menu
->width
+ maxsubwidth
;
3387 *height
= maxheight
;
3390 /* Display MENU at (X,Y) using FACES. */
3392 #define BUILD_CHAR_GLYPH(GLYPH, CODE, FACE_ID, PADDING_P) \
3395 (GLYPH).type = CHAR_GLYPH; \
3396 SET_CHAR_GLYPH ((GLYPH), CODE, FACE_ID, PADDING_P); \
3397 (GLYPH).charpos = -1; \
3402 IT_menu_display (XMenu
*menu
, int y
, int x
, int pn
, int *faces
, int disp_help
)
3404 int i
, j
, face
, width
, mx
, my
, enabled
, mousehere
, row
, col
;
3405 struct glyph
*text
, *p
;
3406 const unsigned char *q
;
3407 struct frame
*sf
= SELECTED_FRAME();
3409 menu_help_message
= NULL
;
3411 width
= menu
->width
;
3412 /* We multiply width by 2 to account for possible control characters.
3413 FIXME: cater to non-ASCII characters in menus. */
3414 text
= (struct glyph
*) xmalloc ((width
* 2 + 2) * sizeof (struct glyph
));
3415 ScreenGetCursor (&row
, &col
);
3416 mouse_get_xy (&mx
, &my
);
3417 IT_update_begin (sf
);
3418 for (i
= 0; i
< menu
->count
; i
++)
3420 int max_width
= width
+ 2;
3422 IT_cursor_to (sf
, y
+ i
, x
);
3424 = (!menu
->submenu
[i
] && menu
->panenumber
[i
]) || (menu
->submenu
[i
]);
3425 mousehere
= (y
+ i
== my
&& x
<= mx
&& mx
< x
+ max_width
);
3426 face
= faces
[enabled
+ mousehere
* 2];
3427 /* The following if clause means that we display the menu help
3428 strings even if the menu item is currently disabled. */
3429 if (disp_help
&& enabled
+ mousehere
* 2 >= 2)
3431 menu_help_message
= menu
->help_text
[i
];
3432 menu_help_paneno
= pn
- 1;
3433 menu_help_itemno
= i
;
3436 BUILD_CHAR_GLYPH (*p
, ' ', face
, 0);
3438 for (j
= 0, q
= menu
->text
[i
]; *q
; j
++)
3440 unsigned c
= STRING_CHAR_ADVANCE (q
);
3444 BUILD_CHAR_GLYPH (*p
, c
, face
, 0);
3447 else /* make '^x' */
3449 BUILD_CHAR_GLYPH (*p
, '^', face
, 0);
3452 BUILD_CHAR_GLYPH (*p
, c
+ 64, face
, 0);
3456 /* Don't let the menu text overflow into the next screen row. */
3457 if (x
+ max_width
> screen_size_X
)
3459 max_width
= screen_size_X
- x
;
3460 text
[max_width
- 1].u
.ch
= '$'; /* indicate it's truncated */
3462 for (; j
< max_width
- 2; j
++, p
++)
3463 BUILD_CHAR_GLYPH (*p
, ' ', face
, 0);
3465 /* 16 is the character code of a character that on DOS terminal
3466 produces a nice-looking right-pointing arrow glyph. */
3467 BUILD_CHAR_GLYPH (*p
, menu
->submenu
[i
] ? 16 : ' ', face
, 0);
3469 IT_write_glyphs (sf
, text
, max_width
);
3472 IT_cursor_to (sf
, row
, col
);
3476 /* --------------------------- X Menu emulation ---------------------- */
3478 /* Report availability of menus. */
3481 have_menus_p (void) { return 1; }
3483 /* Create a brand new menu structure. */
3486 XMenuCreate (Display
*foo1
, Window foo2
, char *foo3
)
3488 return IT_menu_create ();
3491 /* Create a new pane and place it on the outer-most level. It is not
3492 clear that it should be placed out there, but I don't know what else
3496 XMenuAddPane (Display
*foo
, XMenu
*menu
, char *txt
, int enable
)
3504 IT_menu_make_room (menu
);
3505 menu
->submenu
[menu
->count
] = IT_menu_create ();
3506 menu
->text
[menu
->count
] = txt
;
3507 menu
->panenumber
[menu
->count
] = ++menu
->panecount
;
3508 menu
->help_text
[menu
->count
] = NULL
;
3511 /* Adjust length for possible control characters (which will
3512 be written as ^x). */
3513 for (len
= strlen (txt
), p
= txt
; *p
; p
++)
3517 if (len
> menu
->width
)
3520 return menu
->panecount
;
3523 /* Create a new item in a menu pane. */
3526 XMenuAddSelection (Display
*bar
, XMenu
*menu
, int pane
,
3527 int foo
, char *txt
, int enable
, char *help_text
)
3533 if (!(menu
= IT_menu_search_pane (menu
, pane
)))
3535 IT_menu_make_room (menu
);
3536 menu
->submenu
[menu
->count
] = (XMenu
*) 0;
3537 menu
->text
[menu
->count
] = txt
;
3538 menu
->panenumber
[menu
->count
] = enable
;
3539 menu
->help_text
[menu
->count
] = help_text
;
3542 /* Adjust length for possible control characters (which will
3543 be written as ^x). */
3544 for (len
= strlen (txt
), p
= txt
; *p
; p
++)
3548 if (len
> menu
->width
)
3554 /* Decide where the menu would be placed if requested at (X,Y). */
3557 XMenuLocate (Display
*foo0
, XMenu
*menu
, int foo1
, int foo2
, int x
, int y
,
3558 int *ulx
, int *uly
, int *width
, int *height
)
3560 IT_menu_calc_size (menu
, width
, height
);
3566 struct IT_menu_state
3568 void *screen_behind
;
3575 /* Display menu, wait for user's response, and return that response. */
3578 XMenuActivate (Display
*foo
, XMenu
*menu
, int *pane
, int *selidx
,
3579 int x0
, int y0
, unsigned ButtonMask
, char **txt
,
3580 void (*help_callback
)(char *, int, int))
3582 struct IT_menu_state
*state
;
3583 int statecount
, x
, y
, i
, b
, screensize
, leave
, result
, onepane
;
3584 int title_faces
[4]; /* face to display the menu title */
3585 int faces
[4], buffers_num_deleted
= 0;
3586 struct frame
*sf
= SELECTED_FRAME();
3587 Lisp_Object saved_echo_area_message
, selectface
;
3589 /* Just in case we got here without a mouse present... */
3590 if (have_mouse
<= 0)
3591 return XM_IA_SELECT
;
3592 /* Don't allow non-positive x0 and y0, lest the menu will wrap
3593 around the display. */
3599 /* We will process all the mouse events directly, so we had
3600 better prevent dos_rawgetc from stealing them from us. */
3603 state
= alloca (menu
->panecount
* sizeof (struct IT_menu_state
));
3604 screensize
= screen_size
* 2;
3606 = lookup_derived_face (sf
, intern ("msdos-menu-passive-face"),
3607 DEFAULT_FACE_ID
, 1);
3609 = lookup_derived_face (sf
, intern ("msdos-menu-active-face"),
3610 DEFAULT_FACE_ID
, 1);
3611 selectface
= intern ("msdos-menu-select-face");
3612 faces
[2] = lookup_derived_face (sf
, selectface
,
3614 faces
[3] = lookup_derived_face (sf
, selectface
,
3617 /* Make sure the menu title is always displayed with
3618 `msdos-menu-active-face', no matter where the mouse pointer is. */
3619 for (i
= 0; i
< 4; i
++)
3620 title_faces
[i
] = faces
[3];
3624 /* Don't let the title for the "Buffers" popup menu include a
3625 digit (which is ugly).
3627 This is a terrible kludge, but I think the "Buffers" case is
3628 the only one where the title includes a number, so it doesn't
3629 seem to be necessary to make this more general. */
3630 if (strncmp (menu
->text
[0], "Buffers 1", 9) == 0)
3632 menu
->text
[0][7] = '\0';
3633 buffers_num_deleted
= 1;
3636 /* We need to save the current echo area message, so that we could
3637 restore it below, before we exit. See the commentary below,
3638 before the call to message_with_string. */
3639 saved_echo_area_message
= Fcurrent_message ();
3640 state
[0].menu
= menu
;
3642 ScreenRetrieve (state
[0].screen_behind
= xmalloc (screensize
));
3644 /* Turn off the cursor. Otherwise it shows through the menu
3645 panes, which is ugly. */
3646 IT_display_cursor (0);
3648 /* Display the menu title. */
3649 IT_menu_display (menu
, y0
- 1, x0
- 1, 1, title_faces
, 0);
3650 if (buffers_num_deleted
)
3651 menu
->text
[0][7] = ' ';
3652 if ((onepane
= menu
->count
== 1 && menu
->submenu
[0]))
3654 menu
->width
= menu
->submenu
[0]->width
;
3655 state
[0].menu
= menu
->submenu
[0];
3659 state
[0].menu
= menu
;
3661 state
[0].x
= x0
- 1;
3663 state
[0].pane
= onepane
;
3665 mouse_last_x
= -1; /* A hack that forces display. */
3669 if (!mouse_visible
) mouse_on ();
3670 mouse_check_moved ();
3671 if (sf
->mouse_moved
)
3673 sf
->mouse_moved
= 0;
3674 result
= XM_IA_SELECT
;
3675 mouse_get_xy (&x
, &y
);
3676 for (i
= 0; i
< statecount
; i
++)
3677 if (state
[i
].x
<= x
&& x
< state
[i
].x
+ state
[i
].menu
->width
+ 2)
3679 int dy
= y
- state
[i
].y
;
3680 if (0 <= dy
&& dy
< state
[i
].menu
->count
)
3682 if (!state
[i
].menu
->submenu
[dy
])
3683 if (state
[i
].menu
->panenumber
[dy
])
3684 result
= XM_SUCCESS
;
3686 result
= XM_IA_SELECT
;
3687 *pane
= state
[i
].pane
- 1;
3689 /* We hit some part of a menu, so drop extra menus that
3690 have been opened. That does not include an open and
3692 if (i
!= statecount
- 2
3693 || state
[i
].menu
->submenu
[dy
] != state
[i
+1].menu
)
3694 while (i
!= statecount
- 1)
3698 ScreenUpdate (state
[statecount
].screen_behind
);
3699 if (screen_virtual_segment
)
3700 dosv_refresh_virtual_screen (0, screen_size
);
3701 xfree (state
[statecount
].screen_behind
);
3703 if (i
== statecount
- 1 && state
[i
].menu
->submenu
[dy
])
3705 IT_menu_display (state
[i
].menu
,
3710 state
[statecount
].menu
= state
[i
].menu
->submenu
[dy
];
3711 state
[statecount
].pane
= state
[i
].menu
->panenumber
[dy
];
3713 ScreenRetrieve (state
[statecount
].screen_behind
3714 = xmalloc (screensize
));
3716 = state
[i
].x
+ state
[i
].menu
->width
+ 2;
3717 state
[statecount
].y
= y
;
3722 IT_menu_display (state
[statecount
- 1].menu
,
3723 state
[statecount
- 1].y
,
3724 state
[statecount
- 1].x
,
3725 state
[statecount
- 1].pane
,
3730 if ((menu_help_message
|| prev_menu_help_message
)
3731 && menu_help_message
!= prev_menu_help_message
)
3733 help_callback (menu_help_message
,
3734 menu_help_paneno
, menu_help_itemno
);
3735 IT_display_cursor (0);
3736 prev_menu_help_message
= menu_help_message
;
3738 /* We are busy-waiting for the mouse to move, so let's be nice
3739 to other Windows applications by releasing our time slice. */
3742 for (b
= 0; b
< mouse_button_count
&& !leave
; b
++)
3744 /* Only leave if user both pressed and released the mouse, and in
3745 that order. This avoids popping down the menu pane unless
3746 the user is really done with it. */
3747 if (mouse_pressed (b
, &x
, &y
))
3749 while (mouse_button_depressed (b
, &x
, &y
))
3753 (void) mouse_released (b
, &x
, &y
);
3758 ScreenUpdate (state
[0].screen_behind
);
3759 if (screen_virtual_segment
)
3760 dosv_refresh_virtual_screen (0, screen_size
);
3762 /* We have a situation here. ScreenUpdate has just restored the
3763 screen contents as it was before we started drawing this menu.
3764 That includes any echo area message that could have been
3765 displayed back then. (In reality, that echo area message will
3766 almost always be the ``keystroke echo'' that echoes the sequence
3767 of menu items chosen by the user.) However, if the menu had some
3768 help messages, then displaying those messages caused Emacs to
3769 forget about the original echo area message. So when
3770 ScreenUpdate restored it, it created a discrepancy between the
3771 actual screen contents and what Emacs internal data structures
3774 To avoid this conflict, we force Emacs to restore the original
3775 echo area message as we found it when we entered this function.
3776 The irony of this is that we then erase the restored message
3777 right away, so the only purpose of restoring it is so that
3778 erasing it works correctly... */
3779 if (! NILP (saved_echo_area_message
))
3780 message_with_string ("%s", saved_echo_area_message
, 0);
3782 while (statecount
--)
3783 xfree (state
[statecount
].screen_behind
);
3784 IT_display_cursor (1); /* turn cursor back on */
3785 /* Clean up any mouse events that are waiting inside Emacs event queue.
3786 These events are likely to be generated before the menu was even
3787 displayed, probably because the user pressed and released the button
3788 (which invoked the menu) too quickly. If we don't remove these events,
3789 Emacs will process them after we return and surprise the user. */
3790 discard_mouse_events ();
3791 mouse_clear_clicks ();
3792 if (!kbd_buffer_events_waiting (1))
3793 clear_input_pending ();
3794 /* Allow mouse events generation by dos_rawgetc. */
3799 /* Dispose of a menu. */
3802 XMenuDestroy (Display
*foo
, XMenu
*menu
)
3805 if (menu
->allocated
)
3807 for (i
= 0; i
< menu
->count
; i
++)
3808 if (menu
->submenu
[i
])
3809 XMenuDestroy (foo
, menu
->submenu
[i
]);
3811 xfree (menu
->submenu
);
3812 xfree (menu
->panenumber
);
3813 xfree (menu
->help_text
);
3816 menu_help_message
= prev_menu_help_message
= NULL
;
3820 x_pixel_width (struct frame
*f
)
3822 return FRAME_COLS (f
);
3826 x_pixel_height (struct frame
*f
)
3828 return FRAME_LINES (f
);
3830 #endif /* !HAVE_X_WINDOWS */
3832 /* ----------------------- DOS / UNIX conversion --------------------- */
3834 void msdos_downcase_filename (unsigned char *);
3836 /* Destructively turn backslashes into slashes. */
3839 dostounix_filename (char *p
)
3841 msdos_downcase_filename (p
);
3851 /* Destructively turn slashes into backslashes. */
3854 unixtodos_filename (char *p
)
3856 if (p
[1] == ':' && *p
>= 'A' && *p
<= 'Z')
3870 /* Get the default directory for a given drive. 0=def, 1=A, 2=B, ... */
3873 getdefdir (int drive
, char *dst
)
3875 char in_path
[4], *p
= in_path
, e
= errno
;
3877 /* Generate "X:." (when drive is X) or "." (when drive is 0). */
3880 *p
++ = drive
+ 'A' - 1;
3887 _fixpath (in_path
, dst
);
3888 /* _fixpath can set errno to ENOSYS on non-LFN systems because
3889 it queries the LFN support, so ignore that error. */
3890 if ((errno
&& errno
!= ENOSYS
) || *dst
== '\0')
3893 msdos_downcase_filename (dst
);
3900 emacs_root_dir (void)
3902 static char root_dir
[4];
3904 sprintf (root_dir
, "%c:/", 'A' + getdisk ());
3905 root_dir
[0] = tolower (root_dir
[0]);
3909 /* Remove all CR's that are followed by a LF. */
3912 crlf_to_lf (int n
, unsigned char *buf
)
3914 unsigned char *np
= buf
, *startp
= buf
, *endp
= buf
+ n
;
3918 while (buf
< endp
- 1)
3922 if (*(++buf
) != 0x0a)
3933 DEFUN ("msdos-long-file-names", Fmsdos_long_file_names
, Smsdos_long_file_names
,
3935 doc
: /* Return non-nil if long file names are supported on MS-DOS. */)
3938 return (_USE_LFN
? Qt
: Qnil
);
3941 /* Convert alphabetic characters in a filename to lower-case. */
3944 msdos_downcase_filename (unsigned char *p
)
3946 /* Always lower-case drive letters a-z, even if the filesystem
3947 preserves case in filenames.
3948 This is so MSDOS filenames could be compared by string comparison
3949 functions that are case-sensitive. Even case-preserving filesystems
3950 do not distinguish case in drive letters. */
3951 if (p
[1] == ':' && *p
>= 'A' && *p
<= 'Z')
3957 /* Under LFN we expect to get pathnames in their true case. */
3958 if (NILP (Fmsdos_long_file_names ()))
3960 if (*p
>= 'A' && *p
<= 'Z')
3964 DEFUN ("msdos-downcase-filename", Fmsdos_downcase_filename
, Smsdos_downcase_filename
,
3966 doc
: /* Convert alphabetic characters in FILENAME to lower case and return that.
3967 When long filenames are supported, doesn't change FILENAME.
3968 If FILENAME is not a string, returns nil.
3969 The argument object is never altered--the value is a copy. */)
3970 (Lisp_Object filename
)
3974 if (! STRINGP (filename
))
3977 tem
= Fcopy_sequence (filename
);
3978 msdos_downcase_filename (SDATA (tem
));
3982 /* The Emacs root directory as determined by init_environment. */
3984 static char emacsroot
[MAXPATHLEN
];
3987 rootrelativepath (char *rel
)
3989 static char result
[MAXPATHLEN
+ 10];
3991 strcpy (result
, emacsroot
);
3992 strcat (result
, "/");
3993 strcat (result
, rel
);
3997 /* Define a lot of environment variables if not already defined. Don't
3998 remove anything unless you know what you're doing -- lots of code will
3999 break if one or more of these are missing. */
4002 init_environment (int argc
, char **argv
, int skip_args
)
4006 static const char * const tempdirs
[] = {
4007 "$TMPDIR", "$TEMP", "$TMP", "c:/"
4009 const int imax
= sizeof (tempdirs
) / sizeof (tempdirs
[0]);
4011 /* Make sure they have a usable $TMPDIR. Many Emacs functions use
4012 temporary files and assume "/tmp" if $TMPDIR is unset, which
4013 will break on DOS/Windows. Refuse to work if we cannot find
4014 a directory, not even "c:/", usable for that purpose. */
4015 for (i
= 0; i
< imax
; i
++)
4017 const char *tmp
= tempdirs
[i
];
4018 char buf
[FILENAME_MAX
];
4024 tmp
= getenv (tmp
+ 1);
4028 /* Some lusers set TMPDIR=e:, probably because some losing
4029 programs cannot handle multiple slashes if they use e:/.
4030 e: fails in `access' below, so we interpret e: as e:/. */
4031 tmp_len
= strlen(tmp
);
4032 if (tmp
[tmp_len
- 1] != '/' && tmp
[tmp_len
- 1] != '\\')
4035 buf
[tmp_len
++] = '/', buf
[tmp_len
] = 0;
4040 /* Note that `access' can lie to us if the directory resides on a
4041 read-only filesystem, like CD-ROM or a write-protected floppy.
4042 The only way to be really sure is to actually create a file and
4043 see if it succeeds. But I think that's too much to ask. */
4044 if (tmp
&& access (tmp
, D_OK
) == 0)
4046 setenv ("TMPDIR", tmp
, 1);
4053 Fcons (build_string ("no usable temporary directories found!!"),
4055 "While setting TMPDIR: ");
4057 /* Note the startup time, so we know not to clear the screen if we
4058 exit immediately; see IT_reset_terminal_modes.
4059 (Yes, I know `clock' returns zero the first time it's called, but
4060 I do this anyway, in case some wiseguy changes that at some point.) */
4061 startup_time
= clock ();
4063 /* Find our root from argv[0]. Assuming argv[0] is, say,
4064 "c:/emacs/bin/emacs.exe" our root will be "c:/emacs". */
4065 root
= alloca (MAXPATHLEN
+ 20);
4066 _fixpath (argv
[0], root
);
4067 msdos_downcase_filename (root
);
4068 len
= strlen (root
);
4069 while (len
> 0 && root
[len
] != '/' && root
[len
] != ':')
4073 && (strcmp (root
+ len
- 4, "/bin") == 0
4074 || strcmp (root
+ len
- 4, "/src") == 0)) /* under a debugger */
4075 root
[len
- 4] = '\0';
4077 strcpy (root
, "c:/emacs"); /* let's be defensive */
4078 len
= strlen (root
);
4079 strcpy (emacsroot
, root
);
4081 /* We default HOME to our root. */
4082 setenv ("HOME", root
, 0);
4084 /* We default EMACSPATH to root + "/bin". */
4085 strcpy (root
+ len
, "/bin");
4086 setenv ("EMACSPATH", root
, 0);
4088 /* I don't expect anybody to ever use other terminals so the internal
4089 terminal is the default. */
4090 setenv ("TERM", "internal", 0);
4092 #ifdef HAVE_X_WINDOWS
4093 /* Emacs expects DISPLAY to be set. */
4094 setenv ("DISPLAY", "unix:0.0", 0);
4097 /* SHELL is a bit tricky -- COMSPEC is the closest we come, but we must
4098 downcase it and mirror the backslashes. */
4099 s
= getenv ("COMSPEC");
4100 if (!s
) s
= "c:/command.com";
4101 t
= alloca (strlen (s
) + 1);
4103 dostounix_filename (t
);
4104 setenv ("SHELL", t
, 0);
4106 /* PATH is also downcased and backslashes mirrored. */
4107 s
= getenv ("PATH");
4109 t
= alloca (strlen (s
) + 3);
4110 /* Current directory is always considered part of MsDos's path but it is
4111 not normally mentioned. Now it is. */
4112 strcat (strcpy (t
, ".;"), s
);
4113 dostounix_filename (t
); /* Not a single file name, but this should work. */
4114 setenv ("PATH", t
, 1);
4116 /* In some sense all dos users have root privileges, so... */
4117 setenv ("USER", "root", 0);
4118 setenv ("NAME", getenv ("USER"), 0);
4120 /* Time zone determined from country code. To make this possible, the
4121 country code may not span more than one time zone. In other words,
4122 in the USA, you lose. */
4124 switch (dos_country_code
)
4126 case 31: /* Belgium */
4127 case 32: /* The Netherlands */
4128 case 33: /* France */
4129 case 34: /* Spain */
4130 case 36: /* Hungary */
4131 case 38: /* Yugoslavia (or what's left of it?) */
4132 case 39: /* Italy */
4133 case 41: /* Switzerland */
4134 case 42: /* Tjekia */
4135 case 45: /* Denmark */
4136 case 46: /* Sweden */
4137 case 47: /* Norway */
4138 case 48: /* Poland */
4139 case 49: /* Germany */
4140 /* Daylight saving from last Sunday in March to last Sunday in
4141 September, both at 2AM. */
4142 setenv ("TZ", "MET-01METDST-02,M3.5.0/02:00,M9.5.0/02:00", 0);
4144 case 44: /* United Kingdom */
4145 case 351: /* Portugal */
4146 case 354: /* Iceland */
4147 setenv ("TZ", "GMT+00", 0);
4149 case 81: /* Japan */
4150 case 82: /* Korea */
4151 setenv ("TZ", "JST-09", 0);
4153 case 90: /* Turkey */
4154 case 358: /* Finland */
4155 setenv ("TZ", "EET-02", 0);
4157 case 972: /* Israel */
4158 /* This is an approximation. (For exact rules, use the
4159 `zoneinfo/israel' file which comes with DJGPP, but you need
4160 to install it in `/usr/share/zoneinfo/' directory first.) */
4161 setenv ("TZ", "IST-02IDT-03,M4.1.6/00:00,M9.5.6/01:00", 0);
4169 static int break_stat
; /* BREAK check mode status. */
4170 static int stdin_stat
; /* stdin IOCTL status. */
4172 /* Turn off Dos' Ctrl-C checking and inhibit interpretation of
4173 control chars by DOS. Determine the keyboard type. */
4176 dos_ttraw (struct tty_display_info
*tty
)
4178 union REGS inregs
, outregs
;
4179 static int first_time
= 1;
4181 /* If we are called for the initial terminal, it's too early to do
4182 anything, and termscript isn't set up. */
4183 if (tty
->terminal
->type
== output_initial
)
4186 break_stat
= getcbrk ();
4192 int86 (0x15, &inregs
, &outregs
);
4193 extended_kbd
= (!outregs
.x
.cflag
) && (outregs
.h
.ah
== 0);
4198 #ifdef HAVE_X_WINDOWS
4199 && inhibit_window_system
4203 inregs
.x
.ax
= 0x0021;
4204 int86 (0x33, &inregs
, &outregs
);
4205 have_mouse
= (outregs
.x
.ax
& 0xffff) == 0xffff;
4208 /* Reportedly, the above doesn't work for some mouse drivers. There
4209 is an additional detection method that should work, but might be
4210 a little slower. Use that as an alternative. */
4211 inregs
.x
.ax
= 0x0000;
4212 int86 (0x33, &inregs
, &outregs
);
4213 have_mouse
= (outregs
.x
.ax
& 0xffff) == 0xffff;
4216 mouse_button_count
= outregs
.x
.bx
;
4218 #ifndef HAVE_X_WINDOWS
4219 /* Save the cursor shape used outside Emacs. */
4220 outside_cursor
= _farpeekw (_dos_ds
, 0x460);
4226 stdin_stat
= setmode (fileno (stdin
), O_BINARY
);
4227 return (stdin_stat
!= -1);
4230 return (setmode (fileno (stdin
), O_BINARY
) != -1);
4233 /* Restore status of standard input and Ctrl-C checking. */
4238 union REGS inregs
, outregs
;
4240 setcbrk (break_stat
);
4243 #ifndef HAVE_X_WINDOWS
4244 /* Restore the cursor shape we found on startup. */
4248 inregs
.x
.cx
= outside_cursor
;
4249 int86 (0x10, &inregs
, &outregs
);
4253 return (setmode (fileno (stdin
), stdin_stat
) != -1);
4257 /* Run command as specified by ARGV in directory DIR.
4258 The command is run with input from TEMPIN, output to
4259 file TEMPOUT and stderr to TEMPERR. */
4262 run_msdos_command (unsigned char **argv
, const char *working_dir
,
4263 int tempin
, int tempout
, int temperr
, char **envv
)
4265 char *saveargv1
, *saveargv2
, *lowcase_argv0
, *pa
, *pl
;
4266 char oldwd
[MAXPATHLEN
+ 1]; /* Fixed size is safe on MSDOS. */
4267 int msshell
, result
= -1, inbak
, outbak
, errbak
, x
, y
;
4270 /* Get current directory as MSDOS cwd is not per-process. */
4273 /* If argv[0] is the shell, it might come in any lettercase.
4274 Since `Fmember' is case-sensitive, we need to downcase
4275 argv[0], even if we are on case-preserving filesystems. */
4276 lowcase_argv0
= alloca (strlen (argv
[0]) + 1);
4277 for (pa
= argv
[0], pl
= lowcase_argv0
; *pa
; pl
++)
4280 if (*pl
>= 'A' && *pl
<= 'Z')
4285 cmd
= Ffile_name_nondirectory (build_string (lowcase_argv0
));
4286 msshell
= !NILP (Fmember (cmd
, Fsymbol_value (intern ("msdos-shells"))))
4287 && !strcmp ("-c", argv
[1]);
4290 saveargv1
= argv
[1];
4291 saveargv2
= argv
[2];
4293 /* We only need to mirror slashes if a DOS shell will be invoked
4294 not via `system' (which does the mirroring itself). Yes, that
4295 means DJGPP v1.x will lose here. */
4296 if (argv
[2] && argv
[3])
4298 char *p
= alloca (strlen (argv
[2]) + 1);
4300 strcpy (argv
[2] = p
, saveargv2
);
4301 while (*p
&& isspace (*p
))
4313 chdir (working_dir
);
4317 if (inbak
< 0 || outbak
< 0 || errbak
< 0)
4318 goto done
; /* Allocation might fail due to lack of descriptors. */
4321 mouse_get_xy (&x
, &y
);
4323 if (!noninteractive
)
4324 dos_ttcooked (); /* do it here while 0 = stdin */
4330 if (msshell
&& !argv
[3])
4332 /* MS-DOS native shells are too restrictive. For starters, they
4333 cannot grok commands longer than 126 characters. In DJGPP v2
4334 and later, `system' is much smarter, so we'll call it instead. */
4338 /* A shell gets a single argument--its full command
4339 line--whose original was saved in `saveargv2'. */
4341 /* Don't let them pass empty command lines to `system', since
4342 with some shells it will try to invoke an interactive shell,
4343 which will hang Emacs. */
4344 for (cmnd
= saveargv2
; *cmnd
&& isspace (*cmnd
); cmnd
++)
4348 extern char **environ
;
4349 char **save_env
= environ
;
4350 int save_system_flags
= __system_flags
;
4352 /* Request the most powerful version of `system'. We need
4353 all the help we can get to avoid calling stock DOS shells. */
4354 __system_flags
= (__system_redirect
4355 | __system_use_shell
4356 | __system_allow_multiple_cmds
4357 | __system_allow_long_cmds
4358 | __system_handle_null_commands
4359 | __system_emulate_chdir
);
4362 result
= system (cmnd
);
4363 __system_flags
= save_system_flags
;
4367 result
= 0; /* emulate Unixy shell behavior with empty cmd line */
4370 result
= spawnve (P_WAIT
, argv
[0], argv
, envv
);
4375 emacs_close (inbak
);
4376 emacs_close (outbak
);
4377 emacs_close (errbak
);
4379 if (!noninteractive
)
4380 dos_ttraw (CURTTY ());
4384 mouse_moveto (x
, y
);
4387 /* Some programs might change the meaning of the highest bit of the
4388 text attribute byte, so we get blinking characters instead of the
4389 bright background colors. Restore that. */
4390 if (!noninteractive
)
4397 argv
[1] = saveargv1
;
4398 argv
[2] = saveargv2
;
4404 croak (char *badfunc
)
4406 fprintf (stderr
, "%s not yet implemented\r\n", badfunc
);
4407 reset_all_sys_modes ();
4412 * A few unimplemented functions that we silently ignore.
4414 int setpgrp (void) {return 0; }
4415 int setpriority (int x
, int y
, int z
) { return 0; }
4417 #if __DJGPP__ == 2 && __DJGPP_MINOR__ < 2
4419 /* Augment DJGPP library POSIX signal functions. This is needed
4420 as of DJGPP v2.01, but might be in the library in later releases. */
4422 #include <libc/bss.h>
4424 /* A counter to know when to re-initialize the static sets. */
4425 static int sigprocmask_count
= -1;
4427 /* Which signals are currently blocked (initially none). */
4428 static sigset_t current_mask
;
4430 /* Which signals are pending (initially none). */
4431 static sigset_t msdos_pending_signals
;
4433 /* Previous handlers to restore when the blocked signals are unblocked. */
4434 typedef void (*sighandler_t
)(int);
4435 static sighandler_t prev_handlers
[320];
4437 /* A signal handler which just records that a signal occurred
4438 (it will be raised later, if and when the signal is unblocked). */
4440 sig_suspender (int signo
)
4442 sigaddset (&msdos_pending_signals
, signo
);
4446 sigprocmask (int how
, const sigset_t
*new_set
, sigset_t
*old_set
)
4451 /* If called for the first time, initialize. */
4452 if (sigprocmask_count
!= __bss_count
)
4454 sigprocmask_count
= __bss_count
;
4455 sigemptyset (&msdos_pending_signals
);
4456 sigemptyset (¤t_mask
);
4457 for (signo
= 0; signo
< 320; signo
++)
4458 prev_handlers
[signo
] = SIG_ERR
;
4462 *old_set
= current_mask
;
4467 if (how
!= SIG_BLOCK
&& how
!= SIG_UNBLOCK
&& how
!= SIG_SETMASK
)
4473 sigemptyset (&new_mask
);
4475 /* DJGPP supports upto 320 signals. */
4476 for (signo
= 0; signo
< 320; signo
++)
4478 if (sigismember (¤t_mask
, signo
))
4479 sigaddset (&new_mask
, signo
);
4480 else if (sigismember (new_set
, signo
) && how
!= SIG_UNBLOCK
)
4482 sigaddset (&new_mask
, signo
);
4484 /* SIGKILL is silently ignored, as on other platforms. */
4485 if (signo
!= SIGKILL
&& prev_handlers
[signo
] == SIG_ERR
)
4486 prev_handlers
[signo
] = signal (signo
, sig_suspender
);
4488 if (( how
== SIG_UNBLOCK
4489 && sigismember (&new_mask
, signo
)
4490 && sigismember (new_set
, signo
))
4491 || (how
== SIG_SETMASK
4492 && sigismember (&new_mask
, signo
)
4493 && !sigismember (new_set
, signo
)))
4495 sigdelset (&new_mask
, signo
);
4496 if (prev_handlers
[signo
] != SIG_ERR
)
4498 signal (signo
, prev_handlers
[signo
]);
4499 prev_handlers
[signo
] = SIG_ERR
;
4501 if (sigismember (&msdos_pending_signals
, signo
))
4503 sigdelset (&msdos_pending_signals
, signo
);
4508 current_mask
= new_mask
;
4512 #endif /* not __DJGPP_MINOR__ < 2 */
4515 #include "sysselect.h"
4517 #ifndef EMACS_TIME_ZERO_OR_NEG_P
4518 #define EMACS_TIME_ZERO_OR_NEG_P(time) \
4519 ((long)(time).tv_sec < 0 \
4520 || ((time).tv_sec == 0 \
4521 && (long)(time).tv_usec <= 0))
4524 /* This yields the rest of the current time slice to the task manager.
4525 It should be called by any code which knows that it has nothing
4526 useful to do except idle.
4528 I don't use __dpmi_yield here, since versions of library before 2.02
4529 called Int 2Fh/AX=1680h there in a way that would wedge the DOS box
4530 on some versions of Windows 9X. */
4533 dos_yield_time_slice (void)
4535 _go32_dpmi_registers r
;
4538 r
.x
.ss
= r
.x
.sp
= r
.x
.flags
= 0;
4539 _go32_dpmi_simulate_int (0x2f, &r
);
4544 /* Only event queue is checked. */
4545 /* We don't have to call timer_check here
4546 because wait_reading_process_output takes care of that. */
4548 sys_select (int nfds
, SELECT_TYPE
*rfds
, SELECT_TYPE
*wfds
, SELECT_TYPE
*efds
,
4549 EMACS_TIME
*timeout
)
4557 check_input
= FD_ISSET (0, rfds
);
4568 /* If we are looking only for the terminal, with no timeout,
4569 just read it and wait -- that's more efficient. */
4572 while (!detect_input_pending ())
4574 dos_yield_time_slice ();
4579 EMACS_TIME clnow
, cllast
, cldiff
;
4582 EMACS_SET_SECS_USECS (cllast
, t
.ti_sec
, t
.ti_hund
* 10000L);
4584 while (!check_input
|| !detect_input_pending ())
4587 EMACS_SET_SECS_USECS (clnow
, t
.ti_sec
, t
.ti_hund
* 10000L);
4588 EMACS_SUB_TIME (cldiff
, clnow
, cllast
);
4590 /* When seconds wrap around, we assume that no more than
4591 1 minute passed since last `gettime'. */
4592 if (EMACS_TIME_NEG_P (cldiff
))
4593 EMACS_SET_SECS (cldiff
, EMACS_SECS (cldiff
) + 60);
4594 EMACS_SUB_TIME (*timeout
, *timeout
, cldiff
);
4596 /* Stop when timeout value crosses zero. */
4597 if (EMACS_TIME_ZERO_OR_NEG_P (*timeout
))
4600 dos_yield_time_slice ();
4610 * Define overlaid functions:
4612 * chdir -> sys_chdir
4613 * tzset -> init_gettimeofday
4614 * abort -> dos_abort
4619 extern int chdir (const char *);
4622 sys_chdir (const char *path
)
4624 int len
= strlen (path
);
4625 char *tmp
= (char *)path
;
4627 if (*tmp
&& tmp
[1] == ':')
4629 if (getdisk () != tolower (tmp
[0]) - 'a')
4630 setdisk (tolower (tmp
[0]) - 'a');
4631 tmp
+= 2; /* strip drive: KFS 1995-07-06 */
4635 if (len
> 1 && (tmp
[len
- 1] == '/'))
4637 char *tmp1
= (char *) alloca (len
+ 1);
4648 extern void tzset (void);
4651 init_gettimeofday (void)
4657 ltm
= gtm
= time (NULL
);
4658 ltm
= mktime (lstm
= localtime (<m
));
4659 gtm
= mktime (gmtime (>m
));
4660 time_rec
.tm_hour
= 99; /* force gettimeofday to get date */
4661 time_rec
.tm_isdst
= lstm
->tm_isdst
;
4662 dos_timezone_offset
= time_rec
.tm_gmtoff
= (int)(gtm
- ltm
) / 60;
4669 dos_abort (char *file
, int line
)
4671 char buffer1
[200], buffer2
[400];
4674 sprintf (buffer1
, "<EMACS FATAL ERROR IN %s LINE %d>", file
, line
);
4675 for (i
= j
= 0; buffer1
[i
]; i
++) {
4676 buffer2
[j
++] = buffer1
[i
];
4677 buffer2
[j
++] = 0x70;
4679 dosmemput (buffer2
, j
, (int)ScreenPrimary
);
4680 ScreenSetCursor (2, 0);
4688 ScreenSetCursor (10, 0);
4689 cputs ("\r\n\nEmacs aborted!\r\n");
4690 #if __DJGPP__ == 2 && __DJGPP_MINOR__ < 2
4691 if (screen_virtual_segment
)
4692 dosv_refresh_virtual_screen (2 * 10 * screen_size_X
, 4 * screen_size_X
);
4693 /* Generate traceback, so we could tell whodunit. */
4694 signal (SIGINT
, SIG_DFL
);
4695 __asm__
__volatile__ ("movb $0x1b,%al;call ___djgpp_hw_exception");
4696 #else /* __DJGPP_MINOR__ >= 2 */
4698 #endif /* __DJGPP_MINOR__ >= 2 */
4704 syms_of_msdos (void)
4706 recent_doskeys
= Fmake_vector (make_number (NUM_RECENT_DOSKEYS
), Qnil
);
4707 staticpro (&recent_doskeys
);
4709 #ifndef HAVE_X_WINDOWS
4711 /* The following two are from xfns.c: */
4712 Qreverse
= intern ("reverse");
4713 staticpro (&Qreverse
);
4715 DEFVAR_LISP ("dos-unsupported-char-glyph", &Vdos_unsupported_char_glyph
,
4716 doc
: /* *Glyph to display instead of chars not supported by current codepage.
4717 This variable is used only by MS-DOS terminals. */);
4718 Vdos_unsupported_char_glyph
= make_number ('\177');
4722 defsubr (&Srecent_doskeys
);
4723 defsubr (&Smsdos_long_file_names
);
4724 defsubr (&Smsdos_downcase_filename
);
4725 defsubr (&Smsdos_remember_default_colors
);
4726 defsubr (&Smsdos_set_mouse_buttons
);
4731 /* arch-tag: db404e92-52a5-475f-9eb2-1cb78dd05f30
4732 (do not change this comment) */