1 /* MS-DOS specific C utilities. -*- coding: raw-text -*-
2 Copyright (C) 1993, 94, 95, 96, 97, 1999, 2000, 2001
3 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
22 /* Contributed by Morten Welinder */
23 /* New display, keyboard, and mouse control by Kim F. Storm */
25 /* Note: some of the stuff here was taken from end of sysdep.c in demacs. */
34 #include <sys/param.h>
38 #include <string.h> /* for bzero and string functions */
39 #include <sys/stat.h> /* for _fixpath */
40 #include <unistd.h> /* for chdir, dup, dup2, etc. */
41 #include <dir.h> /* for getdisk */
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"
65 #include "blockinput.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
85 #include "syssignal.h"
91 /* If other `malloc' than ours is used, force our `sbrk' behave like
92 Unix programs expect (resize memory blocks to keep them contiguous).
93 If `sbrk' from `ralloc.c' is NOT used, also zero-out sbrk'ed memory,
94 because that's what `gmalloc' expects to get. */
98 int _crt0_startup_flags
= _CRT0_FLAG_UNIX_SBRK
;
99 #else /* not REL_ALLOC */
100 int _crt0_startup_flags
= (_CRT0_FLAG_UNIX_SBRK
| _CRT0_FLAG_FILL_SBRK_MEMORY
);
101 #endif /* not REL_ALLOC */
102 #endif /* GNU_MALLOC */
104 #endif /* not SYSTEM_MALLOC */
105 #endif /* __DJGPP__ > 1 */
124 /* ------------------------ Mouse control ---------------------------
126 * Coordinates are in screen positions and zero based.
127 * Mouse buttons are numbered from left to right and also zero based.
130 /* This used to be in termhooks.h, but mainstream Emacs code no longer
131 uses it, and it was removed... */
132 #define NUM_MOUSE_BUTTONS (5)
134 int have_mouse
; /* 0: no, 1: enabled, -1: disabled */
135 static int mouse_visible
;
137 static int mouse_last_x
;
138 static int mouse_last_y
;
140 static int mouse_button_translate
[NUM_MOUSE_BUTTONS
];
141 static int mouse_button_count
;
148 if (have_mouse
> 0 && !mouse_visible
)
151 fprintf (termscript
, "<M_ON>");
153 int86 (0x33, ®s
, ®s
);
163 if (have_mouse
> 0 && mouse_visible
)
166 fprintf (termscript
, "<M_OFF>");
168 int86 (0x33, ®s
, ®s
);
174 mouse_setup_buttons (int n_buttons
)
178 mouse_button_count
= 3;
179 mouse_button_translate
[0] = 0; /* Left */
180 mouse_button_translate
[1] = 2; /* Middle */
181 mouse_button_translate
[2] = 1; /* Right */
183 else /* two, what else? */
185 mouse_button_count
= 2;
186 mouse_button_translate
[0] = 0;
187 mouse_button_translate
[1] = 1;
191 DEFUN ("msdos-set-mouse-buttons", Fmsdos_set_mouse_buttons
, Smsdos_set_mouse_buttons
,
192 1, 1, "NSet number of mouse buttons to: ",
193 doc
: /* Set the number of mouse buttons to use by Emacs.
194 This is useful with mice that report the number of buttons inconsistently,
195 e.g., if the number of buttons is reported as 3, but Emacs only sees 2 of
196 them. This happens with wheeled mice on Windows 9X, for example. */)
198 Lisp_Object nbuttons
;
202 CHECK_NUMBER (nbuttons
);
205 Fsignal (Qargs_out_of_range
,
206 Fcons (build_string ("only 2 or 3 mouse buttons are supported"),
207 Fcons (nbuttons
, Qnil
)));
208 mouse_setup_buttons (n
);
213 mouse_get_xy (int *x
, int *y
)
218 int86 (0x33, ®s
, ®s
);
230 fprintf (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 (b
, xp
, yp
)
243 if (b
>= mouse_button_count
)
246 regs
.x
.bx
= mouse_button_translate
[b
];
247 int86 (0x33, ®s
, ®s
);
249 *xp
= regs
.x
.cx
/ 8, *yp
= regs
.x
.dx
/ 8;
250 return (regs
.x
.bx
!= 0);
254 mouse_released (b
, xp
, yp
)
259 if (b
>= mouse_button_count
)
262 regs
.x
.bx
= mouse_button_translate
[b
];
263 int86 (0x33, ®s
, ®s
);
265 *xp
= regs
.x
.cx
/ 8, *yp
= regs
.x
.dx
/ 8;
266 return (regs
.x
.bx
!= 0);
270 mouse_button_depressed (b
, xp
, yp
)
275 if (b
>= mouse_button_count
)
278 int86 (0x33, ®s
, ®s
);
279 if ((regs
.x
.bx
& (1 << mouse_button_translate
[b
])) != 0)
289 mouse_get_pos (f
, insist
, bar_window
, part
, x
, y
, time
)
292 Lisp_Object
*bar_window
, *x
, *y
;
293 enum scroll_bar_part
*part
;
297 Lisp_Object frame
, tail
;
299 /* Clear the mouse-moved flag for every frame on this display. */
300 FOR_EACH_FRAME (tail
, frame
)
301 XFRAME (frame
)->mouse_moved
= 0;
303 *f
= SELECTED_FRAME();
305 mouse_get_xy (&ix
, &iy
);
306 *time
= event_timestamp ();
307 *x
= make_number (mouse_last_x
= ix
);
308 *y
= make_number (mouse_last_y
= iy
);
316 mouse_get_xy (&x
, &y
);
317 SELECTED_FRAME()->mouse_moved
|= (x
!= mouse_last_x
|| y
!= mouse_last_y
);
322 /* Force the mouse driver to ``forget'' about any button clicks until
325 mouse_clear_clicks (void)
329 for (b
= 0; b
< mouse_button_count
; b
++)
331 int dummy_x
, dummy_y
;
333 (void) mouse_pressed (b
, &dummy_x
, &dummy_y
);
334 (void) mouse_released (b
, &dummy_x
, &dummy_y
);
344 fprintf (termscript
, "<M_INIT>");
347 int86 (0x33, ®s
, ®s
);
349 /* Reset the mouse last press/release info. It seems that Windows
350 doesn't do that automatically when function 21h is called, which
351 causes Emacs to ``remember'' the click that switched focus to the
352 window just before Emacs was started from that window. */
353 mouse_clear_clicks ();
357 regs
.x
.dx
= 8 * (ScreenCols () - 1);
358 int86 (0x33, ®s
, ®s
);
362 regs
.x
.dx
= 8 * (ScreenRows () - 1);
363 int86 (0x33, ®s
, ®s
);
369 /* ------------------------- Screen control ----------------------
373 static int internal_terminal
= 0;
375 #ifndef HAVE_X_WINDOWS
376 extern unsigned char ScreenAttrib
;
377 static int screen_face
;
379 static int screen_size_X
;
380 static int screen_size_Y
;
381 static int screen_size
;
383 static int current_pos_X
;
384 static int current_pos_Y
;
385 static int new_pos_X
;
386 static int new_pos_Y
;
388 static void *startup_screen_buffer
;
389 static int startup_screen_size_X
;
390 static int startup_screen_size_Y
;
391 static int startup_pos_X
;
392 static int startup_pos_Y
;
393 static unsigned char startup_screen_attrib
;
395 static clock_t startup_time
;
397 static int term_setup_done
;
399 static unsigned short outside_cursor
;
401 /* Similar to the_only_frame. */
402 struct x_output the_only_x_display
;
404 /* Support for DOS/V (allows Japanese characters to be displayed on
405 standard, non-Japanese, ATs). Only supported for DJGPP v2 and later. */
407 /* Holds the address of the text-mode screen buffer. */
408 static unsigned long screen_old_address
= 0;
409 /* Segment and offset of the virtual screen. If 0, DOS/V is NOT loaded. */
410 static unsigned short screen_virtual_segment
= 0;
411 static unsigned short screen_virtual_offset
= 0;
412 /* A flag to control how to display unibyte 8-bit characters. */
413 extern int unibyte_display_via_language_environment
;
417 /* The screen colors of the curent frame, which serve as the default
418 colors for newly-created frames. */
419 static int initial_screen_colors
[2];
422 /* Update the screen from a part of relocated DOS/V screen buffer which
423 begins at OFFSET and includes COUNT characters. */
425 dosv_refresh_virtual_screen (int offset
, int count
)
429 if (offset
< 0 || count
< 0) /* paranoia; invalid values crash DOS/V */
432 regs
.h
.ah
= 0xff; /* update relocated screen */
433 regs
.x
.es
= screen_virtual_segment
;
434 regs
.x
.di
= screen_virtual_offset
+ offset
;
436 __dpmi_int (0x10, ®s
);
441 dos_direct_output (y
, x
, buf
, len
)
447 int t0
= 2 * (x
+ y
* screen_size_X
);
448 int t
= t0
+ (int) ScreenPrimary
;
453 dosmemput (buf
++, 1, t
);
457 /* This is faster. */
458 for (_farsetsel (_dos_ds
); --len
>= 0; t
+= 2, buf
++)
459 _farnspokeb (t
, *buf
);
461 if (screen_virtual_segment
)
462 dosv_refresh_virtual_screen (t0
, l0
);
467 /* Flash the screen as a substitute for BEEPs. */
471 do_visible_bell (xorattr
)
472 unsigned char xorattr
;
477 movl _ScreenPrimary,%%eax \n\
484 xorb %%al,%%gs:(%%ebx) \n\
487 jne visible_bell_1 \n\
489 jne visible_bell_3 \n\
491 movzwl %%ax,%%eax \n\
492 movzwl %%ax,%%eax \n\
493 movzwl %%ax,%%eax \n\
494 movzwl %%ax,%%eax \n\
496 jne visible_bell_2 \n\
497 jmp visible_bell_0 \n\
500 : "m" (xorattr
), "g" (screen_size
)
501 : "%eax", "%ebx", /* "%gs",*/ "%ecx", "%edx");
505 ScreenVisualBell (void)
507 /* This creates an xor-mask that will swap the default fore- and
508 background colors. */
509 do_visible_bell (((the_only_x_display
.foreground_pixel
510 ^ the_only_x_display
.background_pixel
)
515 #ifndef HAVE_X_WINDOWS
517 static int blink_bit
= -1; /* the state of the blink bit at startup */
519 /* Enable bright background colors. */
525 /* Remember the original state of the blink/bright-background bit.
526 It is stored at 0040:0065h in the BIOS data area. */
528 blink_bit
= (_farpeekb (_dos_ds
, 0x465) & 0x20) == 0x20;
532 int86 (0x10, ®s
, ®s
);
535 /* Disable bright background colors (and enable blinking) if we found
536 the video system in that state at startup. */
538 maybe_enable_blinking (void)
546 int86 (0x10, ®s
, ®s
);
550 /* Return non-zero if the system has a VGA adapter. */
557 int86 (0x10, ®s
, ®s
);
558 if (regs
.h
.al
== 0x1a && regs
.h
.bl
> 5 && regs
.h
.bl
< 13)
563 /* Set the screen dimensions so that it can show no less than
564 ROWS x COLS frame. */
567 dos_set_window_size (rows
, cols
)
571 Lisp_Object video_mode
;
572 int video_mode_value
;
575 int current_rows
= ScreenRows (), current_cols
= ScreenCols ();
577 if (*rows
== current_rows
&& *cols
== current_cols
)
581 have_vga
= vga_installed ();
583 /* If the user specified a special video mode for these dimensions,
585 sprintf (video_name
, "screen-dimensions-%dx%d", *rows
, *cols
);
586 video_mode
= XSYMBOL (Fintern_soft (build_string (video_name
),
589 if (INTEGERP (video_mode
)
590 && (video_mode_value
= XINT (video_mode
)) > 0)
592 regs
.x
.ax
= video_mode_value
;
593 int86 (0x10, ®s
, ®s
);
597 /* Must hardware-reset the mouse, or else it won't update
598 its notion of screen dimensions for some non-standard
599 video modes. This is *painfully* slow... */
601 int86 (0x33, ®s
, ®s
);
605 /* Find one of the dimensions supported by standard EGA/VGA
606 which gives us at least the required dimensions. */
615 } std_dimension
[] = {
625 while (i
< sizeof (std_dimension
) / sizeof (std_dimension
[0]))
627 if (std_dimension
[i
].need_vga
<= have_vga
628 && std_dimension
[i
].rows
>= *rows
)
630 if (std_dimension
[i
].rows
!= current_rows
631 || *cols
!= current_cols
)
632 _set_screen_lines (std_dimension
[i
].rows
);
639 #else /* not __DJGPP__ > 1 */
641 else if (*rows
<= 25)
643 if (current_rows
!= 25 || current_cols
!= 80)
646 int86 (0x10, ®s
, ®s
);
649 int86 (0x10, ®s
, ®s
);
652 int86 (0x10, ®s
, ®s
);
654 int86 (0x10, ®s
, ®s
);
657 else if (*rows
<= 50)
658 if (have_vga
&& (current_rows
!= 50 || current_cols
!= 80)
659 || *rows
<= 43 && (current_rows
!= 43 || current_cols
!= 80))
662 int86 (0x10, ®s
, ®s
);
665 int86 (0x10, ®s
, ®s
);
668 int86 (0x10, ®s
, ®s
);
671 int86 (0x10, ®s
, ®s
);
673 #endif /* not __DJGPP__ > 1 */
681 /* Tell the caller what dimensions have been REALLY set. */
682 *rows
= ScreenRows ();
683 *cols
= ScreenCols ();
685 /* Update Emacs' notion of screen dimensions. */
686 screen_size_X
= *cols
;
687 screen_size_Y
= *rows
;
688 screen_size
= *cols
* *rows
;
691 /* If the dimensions changed, the mouse highlight info is invalid. */
692 if (current_rows
!= *rows
|| current_cols
!= *cols
)
694 struct frame
*f
= SELECTED_FRAME();
695 struct display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
696 Lisp_Object window
= dpyinfo
->mouse_face_window
;
698 if (! NILP (window
) && XFRAME (XWINDOW (window
)->frame
) == f
)
700 dpyinfo
->mouse_face_beg_row
= dpyinfo
->mouse_face_beg_col
= -1;
701 dpyinfo
->mouse_face_end_row
= dpyinfo
->mouse_face_end_col
= -1;
702 dpyinfo
->mouse_face_window
= Qnil
;
707 /* Enable bright background colors. */
710 /* FIXME: I'm not sure the above will run at all on DOS/V. But let's
711 be defensive anyway. */
712 if (screen_virtual_segment
)
713 dosv_refresh_virtual_screen (0, *cols
* *rows
);
716 /* If we write a character in the position where the mouse is,
717 the mouse cursor may need to be refreshed. */
727 mouse_get_xy (&x
, &y
);
728 if (y
!= new_pos_Y
|| x
< new_pos_X
)
734 #define DEFAULT_CURSOR_START (-1)
735 #define DEFAULT_CURSOR_WIDTH (-1)
736 #define BOX_CURSOR_WIDTH (-32)
738 /* Set cursor to begin at scan line START_LINE in the character cell
739 and extend for WIDTH scan lines. Scan lines are counted from top
740 of the character cell, starting from zero. */
742 msdos_set_cursor_shape (struct frame
*f
, int start_line
, int width
)
745 unsigned desired_cursor
;
747 int max_line
, top_line
, bot_line
;
749 /* Avoid the costly BIOS call if F isn't the currently selected
750 frame. Allow for NULL as unconditionally meaning the selected
752 if (f
&& f
!= SELECTED_FRAME())
755 /* The character cell size in scan lines is stored at 40:85 in the
757 max_line
= _farpeekw (_dos_ds
, 0x485) - 1;
760 default: /* this relies on CGA cursor emulation being ON! */
777 if (width
== BOX_CURSOR_WIDTH
)
782 else if (start_line
!= DEFAULT_CURSOR_START
)
784 top_line
= start_line
;
785 bot_line
= top_line
- width
- 1;
787 else if (width
!= DEFAULT_CURSOR_WIDTH
)
790 bot_line
= -1 - width
;
793 top_line
= bot_line
+ 1;
797 /* [31, 0] seems to DTRT for all screen sizes. */
801 else /* WIDTH is positive */
803 if (start_line
!= DEFAULT_CURSOR_START
)
804 bot_line
= start_line
;
805 top_line
= bot_line
- (width
- 1);
808 /* If the current cursor shape is already what they want, we are
810 desired_cursor
= ((top_line
& 0x1f) << 8) | (bot_line
& 0x1f);
811 if (desired_cursor
== _farpeekw (_dos_ds
, 0x460))
815 regs
.x
.cx
= desired_cursor
;
816 __dpmi_int (0x10, ®s
);
817 #endif /* __DJGPP__ > 1 */
821 IT_set_cursor_type (struct frame
*f
, Lisp_Object cursor_type
)
823 if (EQ (cursor_type
, Qbar
))
825 /* Just BAR means the normal EGA/VGA cursor. */
826 msdos_set_cursor_shape (f
, DEFAULT_CURSOR_START
, DEFAULT_CURSOR_WIDTH
);
828 else if (CONSP (cursor_type
) && EQ (XCAR (cursor_type
), Qbar
))
830 Lisp_Object bar_parms
= XCDR (cursor_type
);
833 if (INTEGERP (bar_parms
))
835 /* Feature: negative WIDTH means cursor at the top
836 of the character cell, zero means invisible cursor. */
837 width
= XINT (bar_parms
);
838 msdos_set_cursor_shape (f
, width
>= 0 ? DEFAULT_CURSOR_START
: 0,
841 else if (CONSP (bar_parms
)
842 && INTEGERP (XCAR (bar_parms
))
843 && INTEGERP (XCDR (bar_parms
)))
845 int start_line
= XINT (XCDR (bar_parms
));
847 width
= XINT (XCAR (bar_parms
));
848 msdos_set_cursor_shape (f
, start_line
, width
);
852 /* Treat anything unknown as "box cursor". This includes nil, so
853 that a frame which doesn't specify a cursor type gets a box,
854 which is the default in Emacs. */
855 msdos_set_cursor_shape (f
, 0, BOX_CURSOR_WIDTH
);
868 union REGS inregs
, outregs
;
871 intdos (&inregs
, &outregs
);
875 /* Given a face id FACE, extract the face parameters to be used for
876 display until the face changes. The face parameters (actually, its
877 color) are used to construct the video attribute byte for each
878 glyph during the construction of the buffer that is then blitted to
881 IT_set_face (int face
)
883 struct frame
*sf
= SELECTED_FRAME();
884 struct face
*fp
= FACE_FROM_ID (sf
, face
);
885 struct face
*dfp
= FACE_FROM_ID (sf
, DEFAULT_FACE_ID
);
886 unsigned long fg
, bg
, dflt_fg
, dflt_bg
;
891 /* The default face for the frame should always be realized and
899 dflt_fg
= dfp
->foreground
;
900 dflt_bg
= dfp
->background
;
902 /* Don't use invalid colors. In particular, FACE_TTY_DEFAULT_* colors
903 mean use the colors of the default face. Note that we assume all
904 16 colors to be available for the background, since Emacs switches
905 on this mode (and loses the blinking attribute) at startup. */
906 if (fg
== FACE_TTY_DEFAULT_COLOR
|| fg
== FACE_TTY_DEFAULT_FG_COLOR
)
907 fg
= FRAME_FOREGROUND_PIXEL (sf
);
908 else if (fg
== FACE_TTY_DEFAULT_BG_COLOR
)
909 fg
= FRAME_BACKGROUND_PIXEL (sf
);
910 if (bg
== FACE_TTY_DEFAULT_COLOR
|| bg
== FACE_TTY_DEFAULT_BG_COLOR
)
911 bg
= FRAME_BACKGROUND_PIXEL (sf
);
912 else if (bg
== FACE_TTY_DEFAULT_FG_COLOR
)
913 bg
= FRAME_FOREGROUND_PIXEL (sf
);
915 /* Make sure highlighted lines really stand out, come what may. */
916 if (fp
->tty_reverse_p
&& (fg
== dflt_fg
&& bg
== dflt_bg
))
918 unsigned long tem
= fg
;
923 /* If the user requested inverse video, obey. */
926 unsigned long tem2
= fg
;
932 fprintf (termscript
, "<FACE %d: %d/%d[FG:%d/BG:%d]>", face
,
933 fp
->foreground
, fp
->background
, fg
, bg
);
934 if (fg
>= 0 && fg
< 16)
936 ScreenAttrib
&= 0xf0;
939 if (bg
>= 0 && bg
< 16)
941 ScreenAttrib
&= 0x0f;
942 ScreenAttrib
|= ((bg
& 0x0f) << 4);
946 Lisp_Object Vdos_unsupported_char_glyph
;
949 IT_write_glyphs (struct glyph
*str
, int str_len
)
951 unsigned char *screen_buf
, *screen_bp
, *screen_buf_end
, *bp
;
952 int unsupported_face
= FAST_GLYPH_FACE (Vdos_unsupported_char_glyph
);
953 unsigned unsupported_char
= FAST_GLYPH_CHAR (Vdos_unsupported_char_glyph
);
954 int offset
= 2 * (new_pos_X
+ screen_size_X
* new_pos_Y
);
955 register int sl
= str_len
;
956 register int tlen
= GLYPH_TABLE_LENGTH
;
957 register Lisp_Object
*tbase
= GLYPH_TABLE_BASE
;
959 /* If terminal_coding does any conversion, use it, otherwise use
960 safe_terminal_coding. We can't use CODING_REQUIRE_ENCODING here
961 because it always returns 1 if terminal_coding.src_multibyte is 1. */
962 struct coding_system
*coding
=
963 (terminal_coding
.common_flags
& CODING_REQUIRE_ENCODING_MASK
965 : &safe_terminal_coding
);
968 /* Do we need to consider conversion of unibyte characters to
970 int convert_unibyte_characters
971 = (NILP (current_buffer
->enable_multibyte_characters
)
972 && unibyte_display_via_language_environment
);
974 unsigned char conversion_buffer
[256];
975 int conversion_buffer_size
= sizeof conversion_buffer
;
977 if (str_len
<= 0) return;
979 screen_buf
= screen_bp
= alloca (str_len
* 2);
980 screen_buf_end
= screen_buf
+ str_len
* 2;
981 sf
= SELECTED_FRAME();
983 /* Since faces get cached and uncached behind our back, we can't
984 rely on their indices in the cache being consistent across
985 invocations. So always reset the screen face to the default
986 face of the frame, before writing glyphs, and let the glyphs
987 set the right face if it's different from the default. */
988 IT_set_face (DEFAULT_FACE_ID
);
990 /* The mode bit CODING_MODE_LAST_BLOCK should be set to 1 only at
992 terminal_coding
.mode
&= ~CODING_MODE_LAST_BLOCK
;
995 int cf
, chlen
, enclen
;
996 unsigned char workbuf
[MAX_MULTIBYTE_LENGTH
], *buf
;
999 /* Glyphs with GLYPH_MASK_PADDING bit set are actually there
1000 only for the redisplay code to know how many columns does
1001 this character occupy on the screen. Skip padding glyphs. */
1002 if (CHAR_GLYPH_PADDING_P (*str
))
1009 register GLYPH g
= GLYPH_FROM_CHAR_GLYPH (*str
);
1010 int glyph_not_in_table
= 0;
1012 /* If g is negative, it means we have a multibyte character
1013 in *str. That's what GLYPH_FROM_CHAR_GLYPH returns for
1014 multibyte characters. */
1015 if (g
< 0 || g
>= tlen
)
1017 /* This glyph doesn't have an entry in Vglyph_table. */
1019 glyph_not_in_table
= 1;
1023 /* This glyph has an entry in Vglyph_table, so process
1024 any aliases before testing for simpleness. */
1025 GLYPH_FOLLOW_ALIASES (tbase
, tlen
, g
);
1026 ch
= FAST_GLYPH_CHAR (g
);
1029 /* Convert the character code to multibyte, if they
1030 requested display via language environment. We only want
1031 to convert unibyte characters to multibyte in unibyte
1032 buffers! Otherwise, the 8-bit value in CH came from the
1033 display table set up to display foreign characters. */
1034 if (SINGLE_BYTE_CHAR_P (ch
) && convert_unibyte_characters
1036 || (ch
>= 0200 && !NILP (Vnonascii_translation_table
))))
1037 ch
= unibyte_char_to_multibyte (ch
);
1039 /* Invalid characters are displayed with a special glyph. */
1040 if (! CHAR_VALID_P (ch
, 0))
1042 g
= !NILP (Vdos_unsupported_char_glyph
)
1043 ? Vdos_unsupported_char_glyph
1044 : MAKE_GLYPH (sf
, '\177', GLYPH_FACE (sf
, g
));
1045 ch
= FAST_GLYPH_CHAR (g
);
1048 /* If the face of this glyph is different from the current
1049 screen face, update the screen attribute byte. */
1051 if (cf
!= screen_face
)
1052 IT_set_face (cf
); /* handles invalid faces gracefully */
1054 if (glyph_not_in_table
|| GLYPH_SIMPLE_P (tbase
, tlen
, g
))
1056 /* We generate the multi-byte form of CH in WORKBUF. */
1057 chlen
= CHAR_STRING (ch
, workbuf
);
1062 /* We have a string in Vglyph_table. */
1063 chlen
= GLYPH_LENGTH (tbase
, g
);
1064 buf
= GLYPH_STRING (tbase
, g
);
1067 /* If the character is not multibyte, don't bother converting it. */
1070 *conversion_buffer
= (unsigned char)ch
;
1076 coding
->src_multibyte
= 1;
1077 encode_coding (coding
, buf
, conversion_buffer
, chlen
,
1078 conversion_buffer_size
);
1079 chlen
-= coding
->consumed
;
1080 enclen
= coding
->produced
;
1082 /* Replace glyph codes that cannot be converted by
1083 terminal_coding with Vdos_unsupported_char_glyph. */
1084 if (*conversion_buffer
== '?')
1086 unsigned char *cbp
= conversion_buffer
;
1088 while (cbp
< conversion_buffer
+ enclen
&& *cbp
== '?')
1089 *cbp
++ = unsupported_char
;
1090 if (unsupported_face
!= screen_face
)
1091 IT_set_face (unsupported_face
);
1095 if (enclen
+ chlen
> screen_buf_end
- screen_bp
)
1097 /* The allocated buffer for screen writes is too small.
1098 Flush it and loop again without incrementing STR, so
1099 that the next loop will begin with the same glyph. */
1100 int nbytes
= screen_bp
- screen_buf
;
1103 dosmemput (screen_buf
, nbytes
, (int)ScreenPrimary
+ offset
);
1104 if (screen_virtual_segment
)
1105 dosv_refresh_virtual_screen (offset
, nbytes
/ 2);
1106 new_pos_X
+= nbytes
/ 2;
1109 /* Prepare to reuse the same buffer again. */
1110 screen_bp
= screen_buf
;
1114 /* There's enough place in the allocated buffer to add
1115 the encoding of this glyph. */
1117 /* First, copy the encoded bytes. */
1118 for (bp
= conversion_buffer
; enclen
--; bp
++)
1120 *screen_bp
++ = (unsigned char)*bp
;
1121 *screen_bp
++ = ScreenAttrib
;
1123 fputc (*bp
, termscript
);
1126 /* Now copy the bytes not consumed by the encoding. */
1129 buf
+= coding
->consumed
;
1133 fputc (*buf
, termscript
);
1134 *screen_bp
++ = (unsigned char)*buf
++;
1135 *screen_bp
++ = ScreenAttrib
;
1139 /* Update STR and its remaining length. */
1146 /* Dump whatever is left in the screen buffer. */
1148 dosmemput (screen_buf
, screen_bp
- screen_buf
, (int)ScreenPrimary
+ offset
);
1149 if (screen_virtual_segment
)
1150 dosv_refresh_virtual_screen (offset
, (screen_bp
- screen_buf
) / 2);
1151 new_pos_X
+= (screen_bp
- screen_buf
) / 2;
1153 /* We may have to output some codes to terminate the writing. */
1154 if (CODING_REQUIRE_FLUSHING (coding
))
1156 coding
->mode
|= CODING_MODE_LAST_BLOCK
;
1157 encode_coding (coding
, "", conversion_buffer
, 0, conversion_buffer_size
);
1158 if (coding
->produced
> 0)
1160 screen_buf
= alloca (coding
->produced
* 2);
1161 for (screen_bp
= screen_buf
, bp
= conversion_buffer
;
1162 coding
->produced
--; bp
++)
1164 *screen_bp
++ = (unsigned char)*bp
;
1165 *screen_bp
++ = ScreenAttrib
;
1167 fputc (*bp
, termscript
);
1169 offset
+= screen_bp
- screen_buf
;
1171 dosmemput (screen_buf
, screen_bp
- screen_buf
,
1172 (int)ScreenPrimary
+ offset
);
1173 if (screen_virtual_segment
)
1174 dosv_refresh_virtual_screen (offset
, (screen_bp
- screen_buf
) / 2);
1175 new_pos_X
+= (screen_bp
- screen_buf
) / 2;
1180 /************************************************************************
1181 Mouse Highlight (and friends..)
1182 ************************************************************************/
1184 /* If non-nil, dos_rawgetc generates an event to display that string.
1185 (The display is done in keyboard.c:read_char, by calling
1187 static Lisp_Object help_echo
;
1188 static Lisp_Object previous_help_echo
; /* a helper temporary variable */
1190 /* These record the window, the object and the position where the help
1191 echo string was generated. */
1192 static Lisp_Object help_echo_window
;
1193 static Lisp_Object help_echo_object
;
1194 static int help_echo_pos
;
1196 /* Non-zero means automatically select any window when the mouse
1197 cursor moves into it. */
1198 int x_autoselect_window_p
;
1200 /* Last window where we saw the mouse. Used by x-autoselect-window. */
1201 static Lisp_Object last_mouse_window
;
1203 static int mouse_preempted
= 0; /* non-zero when XMenu gobbles mouse events */
1205 /* Set the mouse pointer shape according to whether it is in the
1206 area where the mouse highlight is in effect. */
1208 IT_set_mouse_pointer (int mode
)
1210 /* A no-op for now. DOS text-mode mouse pointer doesn't offer too
1211 many possibilities to change its shape, and the available
1212 functionality pretty much sucks (e.g., almost every reasonable
1213 shape will conceal the character it is on). Since the color of
1214 the pointer changes in the highlighted area, it is not clear to
1215 me whether anything else is required, anyway. */
1218 /* Display the active region described by mouse_face_*
1219 in its mouse-face if HL > 0, in its normal face if HL = 0. */
1221 show_mouse_face (struct display_info
*dpyinfo
, int hl
)
1223 struct window
*w
= XWINDOW (dpyinfo
->mouse_face_window
);
1224 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
1229 /* If window is in the process of being destroyed, don't bother
1231 if (w
->current_matrix
== NULL
)
1232 goto set_cursor_shape
;
1234 /* Recognize when we are called to operate on rows that don't exist
1235 anymore. This can happen when a window is split. */
1236 if (dpyinfo
->mouse_face_end_row
>= w
->current_matrix
->nrows
)
1237 goto set_cursor_shape
;
1239 /* There's no sense to do anything if the mouse face isn't realized. */
1242 if (dpyinfo
->mouse_face_hidden
)
1243 goto set_cursor_shape
;
1245 fp
= FACE_FROM_ID (SELECTED_FRAME(), dpyinfo
->mouse_face_face_id
);
1247 goto set_cursor_shape
;
1250 /* Note that mouse_face_beg_row etc. are window relative. */
1251 for (i
= dpyinfo
->mouse_face_beg_row
;
1252 i
<= dpyinfo
->mouse_face_end_row
;
1255 int start_hpos
, end_hpos
;
1256 struct glyph_row
*row
= MATRIX_ROW (w
->current_matrix
, i
);
1258 /* Don't do anything if row doesn't have valid contents. */
1259 if (!row
->enabled_p
)
1262 /* For all but the first row, the highlight starts at column 0. */
1263 if (i
== dpyinfo
->mouse_face_beg_row
)
1264 start_hpos
= dpyinfo
->mouse_face_beg_col
;
1268 if (i
== dpyinfo
->mouse_face_end_row
)
1269 end_hpos
= dpyinfo
->mouse_face_end_col
;
1271 end_hpos
= row
->used
[TEXT_AREA
];
1273 if (end_hpos
<= start_hpos
)
1275 /* Record that some glyphs of this row are displayed in
1277 row
->mouse_face_p
= hl
> 0;
1280 int vpos
= row
->y
+ WINDOW_DISPLAY_TOP_EDGE_PIXEL_Y (w
);
1281 int kstart
= start_hpos
+ WINDOW_DISPLAY_LEFT_EDGE_PIXEL_X (w
);
1282 int nglyphs
= end_hpos
- start_hpos
;
1283 int offset
= ScreenPrimary
+ 2*(vpos
*screen_size_X
+ kstart
) + 1;
1284 int start_offset
= offset
;
1287 fprintf (termscript
, "\n<MH+ %d-%d:%d>",
1288 kstart
, kstart
+ nglyphs
- 1, vpos
);
1291 IT_set_face (dpyinfo
->mouse_face_face_id
);
1292 /* Since we are going to change only the _colors_ of the
1293 displayed text, there's no need to go through all the
1294 pain of generating and encoding the text from the glyphs.
1295 Instead, we simply poke the attribute byte of each
1296 affected position in video memory with the colors
1297 computed by IT_set_face! */
1298 _farsetsel (_dos_ds
);
1301 _farnspokeb (offset
, ScreenAttrib
);
1304 if (screen_virtual_segment
)
1305 dosv_refresh_virtual_screen (start_offset
, end_hpos
- start_hpos
);
1310 /* We are removing a previously-drawn mouse highlight. The
1311 safest way to do so is to redraw the glyphs anew, since
1312 all kinds of faces and display tables could have changed
1314 int nglyphs
= end_hpos
- start_hpos
;
1315 int save_x
= new_pos_X
, save_y
= new_pos_Y
;
1317 if (end_hpos
>= row
->used
[TEXT_AREA
])
1318 nglyphs
= row
->used
[TEXT_AREA
] - start_hpos
;
1320 /* IT_write_glyphs writes at cursor position, so we need to
1321 temporarily move cursor coordinates to the beginning of
1322 the highlight region. */
1323 new_pos_X
= start_hpos
+ WINDOW_DISPLAY_LEFT_EDGE_PIXEL_X (w
);
1324 new_pos_Y
= row
->y
+ WINDOW_DISPLAY_TOP_EDGE_PIXEL_Y (w
);
1327 fprintf (termscript
, "<MH- %d-%d:%d>",
1328 new_pos_X
, new_pos_X
+ nglyphs
- 1, new_pos_Y
);
1329 IT_write_glyphs (row
->glyphs
[TEXT_AREA
] + start_hpos
, nglyphs
);
1331 fputs ("\n", termscript
);
1339 /* Change the mouse pointer shape. */
1340 IT_set_mouse_pointer (hl
);
1343 /* Clear out the mouse-highlighted active region.
1344 Redraw it un-highlighted first. */
1346 clear_mouse_face (struct display_info
*dpyinfo
)
1348 if (! NILP (dpyinfo
->mouse_face_window
))
1349 show_mouse_face (dpyinfo
, 0);
1351 dpyinfo
->mouse_face_beg_row
= dpyinfo
->mouse_face_beg_col
= -1;
1352 dpyinfo
->mouse_face_end_row
= dpyinfo
->mouse_face_end_col
= -1;
1353 dpyinfo
->mouse_face_window
= Qnil
;
1356 /* Find the glyph matrix position of buffer position POS in window W.
1357 *HPOS and *VPOS are set to the positions found. W's current glyphs
1358 must be up to date. If POS is above window start return (0, 0).
1359 If POS is after end of W, return end of last line in W. */
1361 fast_find_position (struct window
*w
, int pos
, int *hpos
, int *vpos
)
1365 int maybe_next_line_p
= 0;
1366 int line_start_position
;
1367 int yb
= window_text_bottom_y (w
);
1368 struct glyph_row
*row
= MATRIX_ROW (w
->current_matrix
, 0);
1369 struct glyph_row
*best_row
= row
;
1373 if (row
->used
[TEXT_AREA
])
1374 line_start_position
= row
->glyphs
[TEXT_AREA
]->charpos
;
1376 line_start_position
= 0;
1378 if (line_start_position
> pos
)
1380 /* If the position sought is the end of the buffer,
1381 don't include the blank lines at the bottom of the window. */
1382 else if (line_start_position
== pos
1383 && pos
== BUF_ZV (XBUFFER (w
->buffer
)))
1385 maybe_next_line_p
= 1;
1388 else if (line_start_position
> 0)
1391 /* Don't overstep the last matrix row, lest we get into the
1392 never-never land... */
1393 if (row
->y
+ 1 >= yb
)
1399 /* Find the right column within BEST_ROW. */
1402 for (i
= 0; i
< row
->used
[TEXT_AREA
]; i
++)
1404 struct glyph
*glyph
= row
->glyphs
[TEXT_AREA
] + i
;
1407 charpos
= glyph
->charpos
;
1414 else if (charpos
> pos
)
1416 else if (charpos
> 0)
1420 /* If we're looking for the end of the buffer,
1421 and we didn't find it in the line we scanned,
1422 use the start of the following line. */
1423 if (maybe_next_line_p
)
1430 *hpos
= lastcol
+ 1;
1434 /* Take proper action when mouse has moved to the mode or top line of
1435 window W, x-position X. MODE_LINE_P non-zero means mouse is on the
1436 mode line. X is relative to the start of the text display area of
1437 W, so the width of fringes and scroll bars must be subtracted
1438 to get a position relative to the start of the mode line. */
1440 IT_note_mode_line_highlight (struct window
*w
, int x
, int mode_line_p
)
1442 struct frame
*f
= XFRAME (w
->frame
);
1443 struct display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
1444 struct glyph_row
*row
;
1447 row
= MATRIX_MODE_LINE_ROW (w
->current_matrix
);
1449 row
= MATRIX_HEADER_LINE_ROW (w
->current_matrix
);
1453 extern Lisp_Object Qhelp_echo
;
1454 struct glyph
*glyph
, *end
;
1455 Lisp_Object help
, map
;
1457 /* Find the glyph under X. */
1458 glyph
= row
->glyphs
[TEXT_AREA
]
1459 + x
- FRAME_LEFT_SCROLL_BAR_WIDTH (f
) * CANON_X_UNIT (f
);
1460 end
= glyph
+ row
->used
[TEXT_AREA
];
1462 && STRINGP (glyph
->object
)
1463 && XSTRING (glyph
->object
)->intervals
1464 && glyph
->charpos
>= 0
1465 && glyph
->charpos
< XSTRING (glyph
->object
)->size
)
1467 /* If we're on a string with `help-echo' text property,
1468 arrange for the help to be displayed. This is done by
1469 setting the global variable help_echo to the help string. */
1470 help
= Fget_text_property (make_number (glyph
->charpos
),
1471 Qhelp_echo
, glyph
->object
);
1475 XSETWINDOW (help_echo_window
, w
);
1476 help_echo_object
= glyph
->object
;
1477 help_echo_pos
= glyph
->charpos
;
1483 /* Take proper action when the mouse has moved to position X, Y on
1484 frame F as regards highlighting characters that have mouse-face
1485 properties. Also de-highlighting chars where the mouse was before.
1486 X and Y can be negative or out of range. */
1488 IT_note_mouse_highlight (struct frame
*f
, int x
, int y
)
1490 struct display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
1495 /* When a menu is active, don't highlight because this looks odd. */
1496 if (mouse_preempted
)
1499 if (NILP (Vmouse_highlight
)
1500 || !f
->glyphs_initialized_p
)
1503 dpyinfo
->mouse_face_mouse_x
= x
;
1504 dpyinfo
->mouse_face_mouse_y
= y
;
1505 dpyinfo
->mouse_face_mouse_frame
= f
;
1507 if (dpyinfo
->mouse_face_defer
)
1512 dpyinfo
->mouse_face_deferred_gc
= 1;
1516 /* Which window is that in? */
1517 window
= window_from_coordinates (f
, x
, y
, &portion
, 0);
1519 /* If we were displaying active text in another window, clear that. */
1520 if (! EQ (window
, dpyinfo
->mouse_face_window
))
1521 clear_mouse_face (dpyinfo
);
1523 /* Not on a window -> return. */
1524 if (!WINDOWP (window
))
1527 /* Convert to window-relative coordinates. */
1528 w
= XWINDOW (window
);
1529 x
-= WINDOW_DISPLAY_LEFT_EDGE_PIXEL_X (w
);
1530 y
-= WINDOW_DISPLAY_TOP_EDGE_PIXEL_Y (w
);
1532 if (portion
== 1 || portion
== 3)
1534 /* Mouse is on the mode or top line. */
1535 IT_note_mode_line_highlight (w
, x
, portion
== 1);
1539 IT_set_mouse_pointer (0);
1541 /* Are we in a window whose display is up to date?
1542 And verify the buffer's text has not changed. */
1543 if (/* Within text portion of the window. */
1545 && EQ (w
->window_end_valid
, w
->buffer
)
1546 && XFASTINT (w
->last_modified
) == BUF_MODIFF (XBUFFER (w
->buffer
))
1547 && (XFASTINT (w
->last_overlay_modified
)
1548 == BUF_OVERLAY_MODIFF (XBUFFER (w
->buffer
))))
1551 struct glyph_row
*row
;
1552 struct glyph
*glyph
;
1553 int nrows
= w
->current_matrix
->nrows
;
1555 /* Find the glyph under X/Y. */
1557 if (y
>= 0 && y
< nrows
)
1559 row
= MATRIX_ROW (w
->current_matrix
, y
);
1560 /* Give up if some row before the one we are looking for is
1562 for (i
= 0; i
<= y
; i
++)
1563 if (!MATRIX_ROW (w
->current_matrix
, i
)->enabled_p
)
1565 if (i
> y
/* all rows upto and including the one at Y are enabled */
1566 && row
->displays_text_p
1567 && x
< window_box_width (w
, TEXT_AREA
))
1569 glyph
= row
->glyphs
[TEXT_AREA
];
1570 if (x
>= row
->used
[TEXT_AREA
])
1575 if (!BUFFERP (glyph
->object
))
1581 /* Clear mouse face if X/Y not over text. */
1584 clear_mouse_face (dpyinfo
);
1588 if (!BUFFERP (glyph
->object
))
1590 pos
= glyph
->charpos
;
1592 /* Check for mouse-face and help-echo. */
1594 extern Lisp_Object Qmouse_face
;
1595 Lisp_Object mouse_face
, overlay
, position
;
1596 Lisp_Object
*overlay_vec
;
1598 struct buffer
*obuf
;
1601 /* If we get an out-of-range value, return now; avoid an error. */
1602 if (pos
> BUF_Z (XBUFFER (w
->buffer
)))
1605 /* Make the window's buffer temporarily current for
1606 overlays_at and compute_char_face. */
1607 obuf
= current_buffer
;
1608 current_buffer
= XBUFFER (w
->buffer
);
1614 /* Is this char mouse-active or does it have help-echo? */
1615 XSETINT (position
, pos
);
1617 /* Put all the overlays we want in a vector in overlay_vec.
1618 Store the length in len. If there are more than 10, make
1619 enough space for all, and try again. */
1621 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
1622 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
, NULL
, NULL
, 0);
1623 if (noverlays
> len
)
1626 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
1627 noverlays
= overlays_at (pos
,
1628 0, &overlay_vec
, &len
, NULL
, NULL
, 0);
1631 /* Sort overlays into increasing priority order. */
1632 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
1634 /* Check mouse-face highlighting. */
1635 if (! (EQ (window
, dpyinfo
->mouse_face_window
)
1636 && y
>= dpyinfo
->mouse_face_beg_row
1637 && y
<= dpyinfo
->mouse_face_end_row
1638 && (y
> dpyinfo
->mouse_face_beg_row
1639 || x
>= dpyinfo
->mouse_face_beg_col
)
1640 && (y
< dpyinfo
->mouse_face_end_row
1641 || x
< dpyinfo
->mouse_face_end_col
1642 || dpyinfo
->mouse_face_past_end
)))
1644 /* Clear the display of the old active region, if any. */
1645 clear_mouse_face (dpyinfo
);
1647 /* Find highest priority overlay that has a mouse-face prop. */
1649 for (i
= noverlays
- 1; i
>= 0; --i
)
1651 mouse_face
= Foverlay_get (overlay_vec
[i
], Qmouse_face
);
1652 if (!NILP (mouse_face
))
1654 overlay
= overlay_vec
[i
];
1659 /* If no overlay applies, get a text property. */
1661 mouse_face
= Fget_text_property (position
, Qmouse_face
,
1664 /* Handle the overlay case. */
1665 if (! NILP (overlay
))
1667 /* Find the range of text around this char that
1668 should be active. */
1669 Lisp_Object before
, after
;
1672 before
= Foverlay_start (overlay
);
1673 after
= Foverlay_end (overlay
);
1674 /* Record this as the current active region. */
1675 fast_find_position (w
, XFASTINT (before
),
1676 &dpyinfo
->mouse_face_beg_col
,
1677 &dpyinfo
->mouse_face_beg_row
);
1678 dpyinfo
->mouse_face_past_end
1679 = !fast_find_position (w
, XFASTINT (after
),
1680 &dpyinfo
->mouse_face_end_col
,
1681 &dpyinfo
->mouse_face_end_row
);
1682 dpyinfo
->mouse_face_window
= window
;
1683 dpyinfo
->mouse_face_face_id
1684 = face_at_buffer_position (w
, pos
, 0, 0,
1685 &ignore
, pos
+ 1, 1);
1687 /* Display it as active. */
1688 show_mouse_face (dpyinfo
, 1);
1690 /* Handle the text property case. */
1691 else if (! NILP (mouse_face
))
1693 /* Find the range of text around this char that
1694 should be active. */
1695 Lisp_Object before
, after
, beginning
, end
;
1698 beginning
= Fmarker_position (w
->start
);
1699 XSETINT (end
, (BUF_Z (XBUFFER (w
->buffer
))
1700 - XFASTINT (w
->window_end_pos
)));
1702 = Fprevious_single_property_change (make_number (pos
+ 1),
1704 w
->buffer
, beginning
);
1706 = Fnext_single_property_change (position
, Qmouse_face
,
1708 /* Record this as the current active region. */
1709 fast_find_position (w
, XFASTINT (before
),
1710 &dpyinfo
->mouse_face_beg_col
,
1711 &dpyinfo
->mouse_face_beg_row
);
1712 dpyinfo
->mouse_face_past_end
1713 = !fast_find_position (w
, XFASTINT (after
),
1714 &dpyinfo
->mouse_face_end_col
,
1715 &dpyinfo
->mouse_face_end_row
);
1716 dpyinfo
->mouse_face_window
= window
;
1717 dpyinfo
->mouse_face_face_id
1718 = face_at_buffer_position (w
, pos
, 0, 0,
1719 &ignore
, pos
+ 1, 1);
1721 /* Display it as active. */
1722 show_mouse_face (dpyinfo
, 1);
1726 /* Look for a `help-echo' property. */
1729 extern Lisp_Object Qhelp_echo
;
1731 /* Check overlays first. */
1733 for (i
= noverlays
- 1; i
>= 0 && NILP (help
); --i
)
1735 overlay
= overlay_vec
[i
];
1736 help
= Foverlay_get (overlay
, Qhelp_echo
);
1742 help_echo_window
= window
;
1743 help_echo_object
= overlay
;
1744 help_echo_pos
= pos
;
1746 /* Try text properties. */
1747 else if (NILP (help
)
1748 && ((STRINGP (glyph
->object
)
1749 && glyph
->charpos
>= 0
1750 && glyph
->charpos
< XSTRING (glyph
->object
)->size
)
1751 || (BUFFERP (glyph
->object
)
1752 && glyph
->charpos
>= BEGV
1753 && glyph
->charpos
< ZV
)))
1755 help
= Fget_text_property (make_number (glyph
->charpos
),
1756 Qhelp_echo
, glyph
->object
);
1760 help_echo_window
= window
;
1761 help_echo_object
= glyph
->object
;
1762 help_echo_pos
= glyph
->charpos
;
1769 current_buffer
= obuf
;
1775 IT_clear_end_of_line (int first_unused
)
1779 int offset
= 2 * (new_pos_X
+ screen_size_X
* new_pos_Y
);
1780 extern int fatal_error_in_progress
;
1782 if (new_pos_X
>= first_unused
|| fatal_error_in_progress
)
1786 i
= (j
= first_unused
- new_pos_X
) * 2;
1788 fprintf (termscript
, "<CLR:EOL[%d..%d)>", new_pos_X
, first_unused
);
1789 spaces
= sp
= alloca (i
);
1794 *sp
++ = ScreenAttrib
;
1798 dosmemput (spaces
, i
, (int)ScreenPrimary
+ offset
);
1799 if (screen_virtual_segment
)
1800 dosv_refresh_virtual_screen (offset
, i
/ 2);
1802 /* clear_end_of_line_raw on term.c leaves the cursor at first_unused.
1803 Let's follow their lead, in case someone relies on this. */
1804 new_pos_X
= first_unused
;
1808 IT_clear_screen (void)
1811 fprintf (termscript
, "<CLR:SCR>");
1812 /* We are sometimes called (from clear_garbaged_frames) when a new
1813 frame is being created, but its faces are not yet realized. In
1814 such a case we cannot call IT_set_face, since it will fail to find
1815 any valid faces and will abort. Instead, use the initial screen
1816 colors; that should mimic what a Unix tty does, which simply clears
1817 the screen with whatever default colors are in use. */
1818 if (FACE_FROM_ID (SELECTED_FRAME (), DEFAULT_FACE_ID
) == NULL
)
1819 ScreenAttrib
= (initial_screen_colors
[0] << 4) | initial_screen_colors
[1];
1824 if (screen_virtual_segment
)
1825 dosv_refresh_virtual_screen (0, screen_size
);
1826 new_pos_X
= new_pos_Y
= 0;
1830 IT_clear_to_end (void)
1833 fprintf (termscript
, "<CLR:EOS>");
1835 while (new_pos_Y
< screen_size_Y
) {
1837 IT_clear_end_of_line (screen_size_X
);
1843 IT_cursor_to (int y
, int x
)
1846 fprintf (termscript
, "\n<XY=%dx%d>", x
, y
);
1851 static int cursor_cleared
;
1854 IT_display_cursor (int on
)
1856 if (on
&& cursor_cleared
)
1858 ScreenSetCursor (current_pos_Y
, current_pos_X
);
1861 else if (!on
&& !cursor_cleared
)
1863 ScreenSetCursor (-1, -1);
1868 /* Emacs calls cursor-movement functions a lot when it updates the
1869 display (probably a legacy of old terminals where you cannot
1870 update a screen line without first moving the cursor there).
1871 However, cursor movement is expensive on MSDOS (it calls a slow
1872 BIOS function and requires 2 mode switches), while actual screen
1873 updates access the video memory directly and don't depend on
1874 cursor position. To avoid slowing down the redisplay, we cheat:
1875 all functions that move the cursor only set internal variables
1876 which record the cursor position, whereas the cursor is only
1877 moved to its final position whenever screen update is complete.
1879 `IT_cmgoto' is called from the keyboard reading loop and when the
1880 frame update is complete. This means that we are ready for user
1881 input, so we update the cursor position to show where the point is,
1882 and also make the mouse pointer visible.
1884 Special treatment is required when the cursor is in the echo area,
1885 to put the cursor at the end of the text displayed there. */
1888 IT_cmgoto (FRAME_PTR f
)
1890 /* Only set the cursor to where it should be if the display is
1891 already in sync with the window contents. */
1892 int update_cursor_pos
= 1; /* MODIFF == unchanged_modified; */
1894 /* FIXME: This needs to be rewritten for the new redisplay, or
1897 static int previous_pos_X
= -1;
1899 update_cursor_pos
= 1; /* temporary!!! */
1901 /* If the display is in sync, forget any previous knowledge about
1902 cursor position. This is primarily for unexpected events like
1903 C-g in the minibuffer. */
1904 if (update_cursor_pos
&& previous_pos_X
>= 0)
1905 previous_pos_X
= -1;
1906 /* If we are in the echo area, put the cursor at the
1907 end of the echo area message. */
1908 if (!update_cursor_pos
1909 && XFASTINT (XWINDOW (FRAME_MINIBUF_WINDOW (f
))->top
) <= new_pos_Y
)
1911 int tem_X
= current_pos_X
, dummy
;
1913 if (echo_area_glyphs
)
1915 tem_X
= echo_area_glyphs_length
;
1916 /* Save current cursor position, to be restored after the
1917 echo area message is erased. Only remember one level
1918 of previous cursor position. */
1919 if (previous_pos_X
== -1)
1920 ScreenGetCursor (&dummy
, &previous_pos_X
);
1922 else if (previous_pos_X
>= 0)
1924 /* We wind up here after the echo area message is erased.
1925 Restore the cursor position we remembered above. */
1926 tem_X
= previous_pos_X
;
1927 previous_pos_X
= -1;
1930 if (current_pos_X
!= tem_X
)
1933 update_cursor_pos
= 1;
1938 if (update_cursor_pos
1939 && (current_pos_X
!= new_pos_X
|| current_pos_Y
!= new_pos_Y
))
1941 ScreenSetCursor (current_pos_Y
= new_pos_Y
, current_pos_X
= new_pos_X
);
1943 fprintf (termscript
, "\n<CURSOR:%dx%d>", current_pos_X
, current_pos_Y
);
1946 /* Maybe cursor is invisible, so make it visible. */
1947 IT_display_cursor (1);
1949 /* Mouse pointer should be always visible if we are waiting for
1956 IT_update_begin (struct frame
*f
)
1958 struct display_info
*display_info
= FRAME_X_DISPLAY_INFO (f
);
1959 struct frame
*mouse_face_frame
= display_info
->mouse_face_mouse_frame
;
1963 if (f
&& f
== mouse_face_frame
)
1965 /* Don't do highlighting for mouse motion during the update. */
1966 display_info
->mouse_face_defer
= 1;
1968 /* If F needs to be redrawn, simply forget about any prior mouse
1970 if (FRAME_GARBAGED_P (f
))
1971 display_info
->mouse_face_window
= Qnil
;
1973 /* Can we tell that this update does not affect the window
1974 where the mouse highlight is? If so, no need to turn off.
1975 Likewise, don't do anything if none of the enabled rows
1976 contains glyphs highlighted in mouse face. */
1977 if (!NILP (display_info
->mouse_face_window
)
1978 && WINDOWP (display_info
->mouse_face_window
))
1980 struct window
*w
= XWINDOW (display_info
->mouse_face_window
);
1983 /* If the mouse highlight is in the window that was deleted
1984 (e.g., if it was popped by completion), clear highlight
1986 if (NILP (w
->buffer
))
1987 display_info
->mouse_face_window
= Qnil
;
1990 for (i
= 0; i
< w
->desired_matrix
->nrows
; ++i
)
1991 if (MATRIX_ROW_ENABLED_P (w
->desired_matrix
, i
)
1992 && MATRIX_ROW (w
->current_matrix
, i
)->mouse_face_p
)
1996 if (NILP (w
->buffer
) || i
< w
->desired_matrix
->nrows
)
1997 clear_mouse_face (display_info
);
2000 else if (mouse_face_frame
&& !FRAME_LIVE_P (mouse_face_frame
))
2002 /* If the frame with mouse highlight was deleted, invalidate the
2004 display_info
->mouse_face_beg_row
= display_info
->mouse_face_beg_col
= -1;
2005 display_info
->mouse_face_end_row
= display_info
->mouse_face_end_col
= -1;
2006 display_info
->mouse_face_window
= Qnil
;
2007 display_info
->mouse_face_deferred_gc
= 0;
2008 display_info
->mouse_face_mouse_frame
= NULL
;
2015 IT_update_end (struct frame
*f
)
2017 FRAME_X_DISPLAY_INFO (f
)->mouse_face_defer
= 0;
2020 Lisp_Object Qcursor_type
;
2023 IT_frame_up_to_date (struct frame
*f
)
2025 struct display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
2026 Lisp_Object new_cursor
, frame_desired_cursor
;
2029 if (dpyinfo
->mouse_face_deferred_gc
2030 || (f
&& f
== dpyinfo
->mouse_face_mouse_frame
))
2033 if (dpyinfo
->mouse_face_mouse_frame
)
2034 IT_note_mouse_highlight (dpyinfo
->mouse_face_mouse_frame
,
2035 dpyinfo
->mouse_face_mouse_x
,
2036 dpyinfo
->mouse_face_mouse_y
);
2037 dpyinfo
->mouse_face_deferred_gc
= 0;
2041 /* Set the cursor type to whatever they wanted. In a minibuffer
2042 window, we want the cursor to appear only if we are reading input
2043 from this window, and we want the cursor to be taken from the
2044 frame parameters. For the selected window, we use either its
2045 buffer-local value or the value from the frame parameters if the
2046 buffer doesn't define its local value for the cursor type. */
2047 sw
= XWINDOW (f
->selected_window
);
2048 frame_desired_cursor
= Fcdr (Fassq (Qcursor_type
, f
->param_alist
));
2049 if (cursor_in_echo_area
2050 && FRAME_HAS_MINIBUF_P (f
)
2051 && EQ (FRAME_MINIBUF_WINDOW (f
), echo_area_window
)
2052 && sw
== XWINDOW (echo_area_window
))
2053 new_cursor
= frame_desired_cursor
;
2056 struct buffer
*b
= XBUFFER (sw
->buffer
);
2058 if (EQ (b
->cursor_type
, Qt
))
2059 new_cursor
= frame_desired_cursor
;
2060 else if (NILP (b
->cursor_type
)) /* nil means no cursor */
2061 new_cursor
= Fcons (Qbar
, make_number (0));
2063 new_cursor
= b
->cursor_type
;
2066 IT_set_cursor_type (f
, new_cursor
);
2068 IT_cmgoto (f
); /* position cursor when update is done */
2071 /* Copy LEN glyphs displayed on a single line whose vertical position
2072 is YPOS, beginning at horizontal position XFROM to horizontal
2073 position XTO, by moving blocks in the video memory. Used by
2074 functions that insert and delete glyphs. */
2076 IT_copy_glyphs (int xfrom
, int xto
, size_t len
, int ypos
)
2078 /* The offsets of source and destination relative to the
2079 conventional memorty selector. */
2080 int from
= 2 * (xfrom
+ screen_size_X
* ypos
) + ScreenPrimary
;
2081 int to
= 2 * (xto
+ screen_size_X
* ypos
) + ScreenPrimary
;
2083 if (from
== to
|| len
<= 0)
2086 _farsetsel (_dos_ds
);
2088 /* The source and destination might overlap, so we need to move
2089 glyphs non-destructively. */
2092 for ( ; len
; from
+= 2, to
+= 2, len
--)
2093 _farnspokew (to
, _farnspeekw (from
));
2097 from
+= (len
- 1) * 2;
2098 to
+= (len
- 1) * 2;
2099 for ( ; len
; from
-= 2, to
-= 2, len
--)
2100 _farnspokew (to
, _farnspeekw (from
));
2102 if (screen_virtual_segment
)
2103 dosv_refresh_virtual_screen (ypos
* screen_size_X
* 2, screen_size_X
);
2106 /* Insert and delete glyphs. */
2108 IT_insert_glyphs (start
, len
)
2109 register struct glyph
*start
;
2112 int shift_by_width
= screen_size_X
- (new_pos_X
+ len
);
2114 /* Shift right the glyphs from the nominal cursor position to the
2115 end of this line. */
2116 IT_copy_glyphs (new_pos_X
, new_pos_X
+ len
, shift_by_width
, new_pos_Y
);
2118 /* Now write the glyphs to be inserted. */
2119 IT_write_glyphs (start
, len
);
2123 IT_delete_glyphs (n
)
2129 /* set-window-configuration on window.c needs this. */
2131 x_set_menu_bar_lines (f
, value
, oldval
)
2133 Lisp_Object value
, oldval
;
2135 set_menu_bar_lines (f
, value
, oldval
);
2138 /* This was copied from xfaces.c */
2140 extern Lisp_Object Qbackground_color
;
2141 extern Lisp_Object Qforeground_color
;
2142 Lisp_Object Qreverse
;
2143 extern Lisp_Object Qtitle
;
2145 /* IT_set_terminal_modes is called when emacs is started,
2146 resumed, and whenever the screen is redrawn! */
2149 IT_set_terminal_modes (void)
2152 fprintf (termscript
, "\n<SET_TERM>");
2154 screen_size_X
= ScreenCols ();
2155 screen_size_Y
= ScreenRows ();
2156 screen_size
= screen_size_X
* screen_size_Y
;
2158 new_pos_X
= new_pos_Y
= 0;
2159 current_pos_X
= current_pos_Y
= -1;
2161 if (term_setup_done
)
2163 term_setup_done
= 1;
2165 startup_screen_size_X
= screen_size_X
;
2166 startup_screen_size_Y
= screen_size_Y
;
2167 startup_screen_attrib
= ScreenAttrib
;
2170 /* Is DOS/V (or any other RSIS software which relocates
2171 the screen) installed? */
2173 unsigned short es_value
;
2176 regs
.h
.ah
= 0xfe; /* get relocated screen address */
2177 if (ScreenPrimary
== 0xb0000UL
|| ScreenPrimary
== 0xb8000UL
)
2178 regs
.x
.es
= (ScreenPrimary
>> 4) & 0xffff;
2179 else if (screen_old_address
) /* already switched to Japanese mode once */
2180 regs
.x
.es
= (screen_old_address
>> 4) & 0xffff;
2182 regs
.x
.es
= ScreenMode () == 7 ? 0xb000 : 0xb800;
2184 es_value
= regs
.x
.es
;
2185 __dpmi_int (0x10, ®s
);
2187 if (regs
.x
.es
!= es_value
)
2189 /* screen_old_address is only set if ScreenPrimary does NOT
2190 already point to the relocated buffer address returned by
2191 the Int 10h/AX=FEh call above. DJGPP v2.02 and later sets
2192 ScreenPrimary to that address at startup under DOS/V. */
2193 if (regs
.x
.es
!= (ScreenPrimary
>> 4) & 0xffff)
2194 screen_old_address
= ScreenPrimary
;
2195 screen_virtual_segment
= regs
.x
.es
;
2196 screen_virtual_offset
= regs
.x
.di
;
2197 ScreenPrimary
= (screen_virtual_segment
<< 4) + screen_virtual_offset
;
2200 #endif /* __DJGPP__ > 1 */
2202 ScreenGetCursor (&startup_pos_Y
, &startup_pos_X
);
2203 ScreenRetrieve (startup_screen_buffer
= xmalloc (screen_size
* 2));
2206 fprintf (termscript
, "<SCREEN SAVED (dimensions=%dx%d)>\n",
2207 screen_size_X
, screen_size_Y
);
2212 /* IT_reset_terminal_modes is called when emacs is
2213 suspended or killed. */
2216 IT_reset_terminal_modes (void)
2218 int display_row_start
= (int) ScreenPrimary
;
2219 int saved_row_len
= startup_screen_size_X
* 2;
2220 int update_row_len
= ScreenCols () * 2;
2221 int current_rows
= ScreenRows ();
2222 int to_next_row
= update_row_len
;
2223 unsigned char *saved_row
= startup_screen_buffer
;
2224 int cursor_pos_X
= ScreenCols () - 1;
2225 int cursor_pos_Y
= ScreenRows () - 1;
2228 fprintf (termscript
, "\n<RESET_TERM>");
2230 if (!term_setup_done
)
2235 /* Leave the video system in the same state as we found it,
2236 as far as the blink/bright-background bit is concerned. */
2237 maybe_enable_blinking ();
2239 /* We have a situation here.
2240 We cannot just do ScreenUpdate(startup_screen_buffer) because
2241 the luser could have changed screen dimensions inside Emacs
2242 and failed (or didn't want) to restore them before killing
2243 Emacs. ScreenUpdate() uses the *current* screen dimensions and
2244 thus will happily use memory outside what was allocated for
2245 `startup_screen_buffer'.
2246 Thus we only restore as much as the current screen dimensions
2247 can hold, and clear the rest (if the saved screen is smaller than
2248 the current) with the color attribute saved at startup. The cursor
2249 is also restored within the visible dimensions. */
2251 ScreenAttrib
= startup_screen_attrib
;
2253 /* Don't restore the screen if we are exiting less than 2 seconds
2254 after startup: we might be crashing, and the screen might show
2255 some vital clues to what's wrong. */
2256 if (clock () - startup_time
>= 2*CLOCKS_PER_SEC
)
2259 if (screen_virtual_segment
)
2260 dosv_refresh_virtual_screen (0, screen_size
);
2262 if (update_row_len
> saved_row_len
)
2263 update_row_len
= saved_row_len
;
2264 if (current_rows
> startup_screen_size_Y
)
2265 current_rows
= startup_screen_size_Y
;
2268 fprintf (termscript
, "<SCREEN RESTORED (dimensions=%dx%d)>\n",
2269 update_row_len
/ 2, current_rows
);
2271 while (current_rows
--)
2273 dosmemput (saved_row
, update_row_len
, display_row_start
);
2274 if (screen_virtual_segment
)
2275 dosv_refresh_virtual_screen (display_row_start
- ScreenPrimary
,
2276 update_row_len
/ 2);
2277 saved_row
+= saved_row_len
;
2278 display_row_start
+= to_next_row
;
2281 if (startup_pos_X
< cursor_pos_X
)
2282 cursor_pos_X
= startup_pos_X
;
2283 if (startup_pos_Y
< cursor_pos_Y
)
2284 cursor_pos_Y
= startup_pos_Y
;
2286 ScreenSetCursor (cursor_pos_Y
, cursor_pos_X
);
2287 xfree (startup_screen_buffer
);
2289 term_setup_done
= 0;
2293 IT_set_terminal_window (int foo
)
2297 /* Remember the screen colors of the curent frame, to serve as the
2298 default colors for newly-created frames. */
2299 DEFUN ("msdos-remember-default-colors", Fmsdos_remember_default_colors
,
2300 Smsdos_remember_default_colors
, 1, 1, 0,
2301 doc
: /* Remember the screen colors of the current frame. */)
2307 CHECK_FRAME (frame
);
2310 /* This function is called after applying default-frame-alist to the
2311 initial frame. At that time, if reverse-colors option was
2312 specified in default-frame-alist, it was already applied, and
2313 frame colors are reversed. We need to account for that. */
2314 if (EQ (Fcdr (Fassq (Qreverse
, f
->param_alist
)), Qt
))
2316 initial_screen_colors
[0] = FRAME_BACKGROUND_PIXEL (f
);
2317 initial_screen_colors
[1] = FRAME_FOREGROUND_PIXEL (f
);
2321 initial_screen_colors
[0] = FRAME_FOREGROUND_PIXEL (f
);
2322 initial_screen_colors
[1] = FRAME_BACKGROUND_PIXEL (f
);
2327 IT_set_frame_parameters (f
, alist
)
2332 int length
= XINT (Flength (alist
));
2335 = (Lisp_Object
*) alloca (length
* sizeof (Lisp_Object
));
2337 = (Lisp_Object
*) alloca (length
* sizeof (Lisp_Object
));
2338 /* Do we have to reverse the foreground and background colors? */
2339 int reverse
= EQ (Fcdr (Fassq (Qreverse
, f
->param_alist
)), Qt
);
2340 int was_reverse
= reverse
;
2341 int redraw
= 0, fg_set
= 0, bg_set
= 0;
2342 int need_to_reverse
;
2343 unsigned long orig_fg
;
2344 unsigned long orig_bg
;
2345 Lisp_Object frame_bg
, frame_fg
;
2346 extern Lisp_Object Qdefault
, QCforeground
, QCbackground
;
2348 /* If we are creating a new frame, begin with the original screen colors
2349 used for the initial frame. */
2350 if (alist
== Vdefault_frame_alist
2351 && initial_screen_colors
[0] != -1 && initial_screen_colors
[1] != -1)
2353 FRAME_FOREGROUND_PIXEL (f
) = initial_screen_colors
[0];
2354 FRAME_BACKGROUND_PIXEL (f
) = initial_screen_colors
[1];
2356 orig_fg
= FRAME_FOREGROUND_PIXEL (f
);
2357 orig_bg
= FRAME_BACKGROUND_PIXEL (f
);
2358 frame_fg
= Fcdr (Fassq (Qforeground_color
, f
->param_alist
));
2359 frame_bg
= Fcdr (Fassq (Qbackground_color
, f
->param_alist
));
2360 /* frame_fg and frame_bg could be nil if, for example,
2361 f->param_alist is nil, e.g. if we are called from
2362 Fmake_terminal_frame. */
2363 if (NILP (frame_fg
))
2364 frame_fg
= build_string (unspecified_fg
);
2365 if (NILP (frame_bg
))
2366 frame_bg
= build_string (unspecified_bg
);
2368 /* Extract parm names and values into those vectors. */
2370 for (tail
= alist
; CONSP (tail
); tail
= Fcdr (tail
))
2375 parms
[i
] = Fcar (elt
);
2376 CHECK_SYMBOL (parms
[i
]);
2377 values
[i
] = Fcdr (elt
);
2383 for (i
= 0; i
< j
; i
++)
2385 Lisp_Object prop
, val
;
2390 if (EQ (prop
, Qreverse
))
2391 reverse
= EQ (val
, Qt
);
2394 need_to_reverse
= reverse
&& !was_reverse
;
2395 if (termscript
&& need_to_reverse
)
2396 fprintf (termscript
, "<INVERSE-VIDEO>\n");
2398 /* Now process the alist elements in reverse of specified order. */
2399 for (i
--; i
>= 0; i
--)
2401 Lisp_Object prop
, val
;
2407 if (EQ (prop
, Qforeground_color
))
2409 unsigned long new_color
= load_color (f
, NULL
, val
, need_to_reverse
2410 ? LFACE_BACKGROUND_INDEX
2411 : LFACE_FOREGROUND_INDEX
);
2412 if (new_color
!= FACE_TTY_DEFAULT_COLOR
2413 && new_color
!= FACE_TTY_DEFAULT_FG_COLOR
2414 && new_color
!= FACE_TTY_DEFAULT_BG_COLOR
)
2416 FRAME_FOREGROUND_PIXEL (f
) = new_color
;
2417 /* Make sure the foreground of the default face for this
2418 frame is changed as well. */
2419 XSETFRAME (frame
, f
);
2420 if (need_to_reverse
)
2422 Finternal_set_lisp_face_attribute (Qdefault
, QCbackground
,
2424 prop
= Qbackground_color
;
2429 Finternal_set_lisp_face_attribute (Qdefault
, QCforeground
,
2435 fprintf (termscript
, "<FGCOLOR %lu>\n", new_color
);
2438 else if (EQ (prop
, Qbackground_color
))
2440 unsigned long new_color
= load_color (f
, NULL
, val
, need_to_reverse
2441 ? LFACE_FOREGROUND_INDEX
2442 : LFACE_BACKGROUND_INDEX
);
2443 if (new_color
!= FACE_TTY_DEFAULT_COLOR
2444 && new_color
!= FACE_TTY_DEFAULT_FG_COLOR
2445 && new_color
!= FACE_TTY_DEFAULT_BG_COLOR
)
2447 FRAME_BACKGROUND_PIXEL (f
) = new_color
;
2448 /* Make sure the background of the default face for this
2449 frame is changed as well. */
2450 XSETFRAME (frame
, f
);
2451 if (need_to_reverse
)
2453 Finternal_set_lisp_face_attribute (Qdefault
, QCforeground
,
2455 prop
= Qforeground_color
;
2460 Finternal_set_lisp_face_attribute (Qdefault
, QCbackground
,
2466 fprintf (termscript
, "<BGCOLOR %lu>\n", new_color
);
2469 else if (EQ (prop
, Qtitle
))
2471 x_set_title (f
, val
);
2473 fprintf (termscript
, "<TITLE: %s>\n", XSTRING (val
)->data
);
2475 else if (EQ (prop
, Qcursor_type
))
2477 IT_set_cursor_type (f
, val
);
2479 fprintf (termscript
, "<CTYPE: %s>\n",
2480 EQ (val
, Qbar
) || CONSP (val
) && EQ (XCAR (val
), Qbar
)
2483 store_frame_param (f
, prop
, val
);
2486 /* If they specified "reverse", but not the colors, we need to swap
2487 the current frame colors. */
2488 if (need_to_reverse
)
2494 XSETFRAME (frame
, f
);
2495 Finternal_set_lisp_face_attribute (Qdefault
, QCforeground
,
2496 tty_color_name (f
, orig_bg
),
2502 XSETFRAME (frame
, f
);
2503 Finternal_set_lisp_face_attribute (Qdefault
, QCbackground
,
2504 tty_color_name (f
, orig_fg
),
2512 face_change_count
++; /* forces xdisp.c to recompute basic faces */
2513 if (f
== SELECTED_FRAME())
2518 extern void init_frame_faces (FRAME_PTR
);
2520 #endif /* !HAVE_X_WINDOWS */
2523 /* Do we need the internal terminal? */
2526 internal_terminal_init ()
2528 char *term
= getenv ("TERM");
2530 struct frame
*sf
= SELECTED_FRAME();
2532 #ifdef HAVE_X_WINDOWS
2533 if (!inhibit_window_system
)
2538 = (!noninteractive
) && term
&& !strcmp (term
, "internal");
2540 if (getenv ("EMACSTEST"))
2541 termscript
= fopen (getenv ("EMACSTEST"), "wt");
2543 #ifndef HAVE_X_WINDOWS
2544 if (!internal_terminal
|| inhibit_window_system
)
2546 sf
->output_method
= output_termcap
;
2550 Vwindow_system
= intern ("pc");
2551 Vwindow_system_version
= make_number (1);
2552 sf
->output_method
= output_msdos_raw
;
2554 /* If Emacs was dumped on DOS/V machine, forget the stale VRAM address. */
2555 screen_old_address
= 0;
2557 /* Forget the stale screen colors as well. */
2558 initial_screen_colors
[0] = initial_screen_colors
[1] = -1;
2560 bzero (&the_only_x_display
, sizeof the_only_x_display
);
2561 the_only_x_display
.background_pixel
= 7; /* White */
2562 the_only_x_display
.foreground_pixel
= 0; /* Black */
2564 colors
= getenv ("EMACSCOLORS");
2565 if (colors
&& strlen (colors
) >= 2)
2567 /* The colors use 4 bits each (we enable bright background). */
2568 if (isdigit (colors
[0]))
2570 else if (isxdigit (colors
[0]))
2571 colors
[0] -= (isupper (colors
[0]) ? 'A' : 'a') - 10;
2572 if (colors
[0] >= 0 && colors
[0] < 16)
2573 the_only_x_display
.foreground_pixel
= colors
[0];
2574 if (isdigit (colors
[1]))
2576 else if (isxdigit (colors
[1]))
2577 colors
[1] -= (isupper (colors
[1]) ? 'A' : 'a') - 10;
2578 if (colors
[1] >= 0 && colors
[1] < 16)
2579 the_only_x_display
.background_pixel
= colors
[1];
2581 the_only_x_display
.line_height
= 1;
2582 the_only_x_display
.font
= (XFontStruct
*)1; /* must *not* be zero */
2583 the_only_x_display
.display_info
.mouse_face_mouse_frame
= NULL
;
2584 the_only_x_display
.display_info
.mouse_face_deferred_gc
= 0;
2585 the_only_x_display
.display_info
.mouse_face_beg_row
=
2586 the_only_x_display
.display_info
.mouse_face_beg_col
= -1;
2587 the_only_x_display
.display_info
.mouse_face_end_row
=
2588 the_only_x_display
.display_info
.mouse_face_end_col
= -1;
2589 the_only_x_display
.display_info
.mouse_face_face_id
= DEFAULT_FACE_ID
;
2590 the_only_x_display
.display_info
.mouse_face_window
= Qnil
;
2591 the_only_x_display
.display_info
.mouse_face_mouse_x
=
2592 the_only_x_display
.display_info
.mouse_face_mouse_y
= 0;
2593 the_only_x_display
.display_info
.mouse_face_defer
= 0;
2594 the_only_x_display
.display_info
.mouse_face_hidden
= 0;
2596 init_frame_faces (sf
);
2598 ring_bell_hook
= IT_ring_bell
;
2599 insert_glyphs_hook
= IT_insert_glyphs
;
2600 delete_glyphs_hook
= IT_delete_glyphs
;
2601 write_glyphs_hook
= IT_write_glyphs
;
2602 cursor_to_hook
= raw_cursor_to_hook
= IT_cursor_to
;
2603 clear_to_end_hook
= IT_clear_to_end
;
2604 clear_end_of_line_hook
= IT_clear_end_of_line
;
2605 clear_frame_hook
= IT_clear_screen
;
2606 update_begin_hook
= IT_update_begin
;
2607 update_end_hook
= IT_update_end
;
2608 frame_up_to_date_hook
= IT_frame_up_to_date
;
2610 /* These hooks are called by term.c without being checked. */
2611 set_terminal_modes_hook
= IT_set_terminal_modes
;
2612 reset_terminal_modes_hook
= IT_reset_terminal_modes
;
2613 set_terminal_window_hook
= IT_set_terminal_window
;
2614 char_ins_del_ok
= 0;
2618 dos_get_saved_screen (screen
, rows
, cols
)
2623 #ifndef HAVE_X_WINDOWS
2624 *screen
= startup_screen_buffer
;
2625 *cols
= startup_screen_size_X
;
2626 *rows
= startup_screen_size_Y
;
2627 return *screen
!= (char *)0;
2633 #ifndef HAVE_X_WINDOWS
2635 /* We are not X, but we can emulate it well enough for our needs... */
2639 if (! FRAME_MSDOS_P (SELECTED_FRAME()))
2640 error ("Not running under a window system");
2646 /* ----------------------- Keyboard control ----------------------
2648 * Keymaps reflect the following keyboard layout:
2650 * 0 1 2 3 4 5 6 7 8 9 10 11 12 BS
2651 * TAB 15 16 17 18 19 20 21 22 23 24 25 26 (41)
2652 * CLOK 30 31 32 33 34 35 36 37 38 39 40 (41) RET
2653 * SH () 45 46 47 48 49 50 51 52 53 54 SHIFT
2657 #define Ignore 0x0000
2658 #define Normal 0x0000 /* normal key - alt changes scan-code */
2659 #define FctKey 0x1000 /* func key if c == 0, else c */
2660 #define Special 0x2000 /* func key even if c != 0 */
2661 #define ModFct 0x3000 /* special if mod-keys, else 'c' */
2662 #define Map 0x4000 /* alt scan-code, map to unshift/shift key */
2663 #define KeyPad 0x5000 /* map to insert/kp-0 depending on c == 0xe0 */
2664 #define Grey 0x6000 /* Grey keypad key */
2666 #define Alt 0x0100 /* alt scan-code */
2667 #define Ctrl 0x0200 /* ctrl scan-code */
2668 #define Shift 0x0400 /* shift scan-code */
2670 static int extended_kbd
; /* 101 (102) keyboard present. */
2672 struct kbd_translate
{
2675 unsigned short code
;
2678 struct dos_keyboard_map
2683 struct kbd_translate
*translate_table
;
2687 static struct dos_keyboard_map us_keyboard
= {
2689 /* 01234567890123456789012345678901234567890 12345678901234 */
2690 "`1234567890-= qwertyuiop[] asdfghjkl;'\\ zxcvbnm,./ ",
2691 /* 0123456789012345678901234567890123456789 012345678901234 */
2692 "~!@#$%^&*()_+ QWERTYUIOP{} ASDFGHJKL:\"| ZXCVBNM<>? ",
2693 0, /* no Alt-Gr key */
2694 0 /* no translate table */
2697 static struct dos_keyboard_map fr_keyboard
= {
2699 /* 012 3456789012345678901234567890123456789012345678901234 */
2700 "ý&‚\",(-Š_€…)= azertyuiop^$ qsdfghjklm—* wxcvbnm;:! ",
2701 /* 0123456789012345678901234567890123456789012345678901234 */
2702 " 1234567890ø+ AZERTYUIOPùœ QSDFGHJKLM%æ WXCVBN?./õ ",
2703 /* 01234567 89012345678901234567890123456789012345678901234 */
2705 0 /* no translate table */
2709 * Italian keyboard support, country code 39.
2712 * added also {,},` as, respectively, AltGr-8, AltGr-9, AltGr-'
2713 * Donated by Stefano Brozzi <brozzis@mag00.cedi.unipr.it>
2716 static struct kbd_translate it_kbd_translate_table
[] = {
2717 { 0x56, 0x3c, Normal
| 13 },
2718 { 0x56, 0x3e, Normal
| 27 },
2721 static struct dos_keyboard_map it_keyboard
= {
2723 /* 0 123456789012345678901234567890123456789012345678901234 */
2724 "\\1234567890'�< qwertyuiopŠ+> asdfghjkl•…— zxcvbnm,.- ",
2725 /* 01 23456789012345678901234567890123456789012345678901234 */
2726 "|!\"œ$%&/()=?^> QWERTYUIOP‚* ASDFGHJKL‡øõ ZXCVBNM;:_ ",
2727 /* 0123456789012345678901234567890123456789012345678901234 */
2729 it_kbd_translate_table
2732 static struct dos_keyboard_map dk_keyboard
= {
2734 /* 0123456789012345678901234567890123456789012345678901234 */
2735 "«1234567890+| qwertyuiop†~ asdfghjkl‘›' zxcvbnm,.- ",
2736 /* 01 23456789012345678901234567890123456789012345678901234 */
2737 "õ!\"#$%&/()=?` QWERTYUIOP�^ ASDFGHJKL’�* ZXCVBNM;:_ ",
2738 /* 0123456789012345678901234567890123456789012345678901234 */
2740 0 /* no translate table */
2743 static struct kbd_translate jp_kbd_translate_table
[] = {
2744 { 0x73, 0x5c, Normal
| 0 },
2745 { 0x73, 0x5f, Normal
| 0 },
2746 { 0x73, 0x1c, Map
| 0 },
2747 { 0x7d, 0x5c, Normal
| 13 },
2748 { 0x7d, 0x7c, Normal
| 13 },
2749 { 0x7d, 0x1c, Map
| 13 },
2752 static struct dos_keyboard_map jp_keyboard
= {
2754 /* 0123456789012 345678901234567890123456789012345678901234 */
2755 "\\1234567890-^\\ qwertyuiop@[ asdfghjkl;:] zxcvbnm,./ ",
2756 /* 01 23456789012345678901234567890123456789012345678901234 */
2757 "_!\"#$%&'()~=~| QWERTYUIOP`{ ASDFGHJKL+*} ZXCVBNM<>? ",
2758 0, /* no Alt-Gr key */
2759 jp_kbd_translate_table
2762 static struct keyboard_layout_list
2765 struct dos_keyboard_map
*keyboard_map
;
2766 } keyboard_layout_list
[] =
2775 static struct dos_keyboard_map
*keyboard
;
2776 static int keyboard_map_all
;
2777 static int international_keyboard
;
2780 dos_set_keyboard (code
, always
)
2785 _go32_dpmi_registers regs
;
2787 /* See if Keyb.Com is installed (for international keyboard support).
2788 Note: calling Int 2Fh via int86 wedges the DOS box on some versions
2789 of Windows 9X! So don't do that! */
2791 regs
.x
.ss
= regs
.x
.sp
= regs
.x
.flags
= 0;
2792 _go32_dpmi_simulate_int (0x2f, ®s
);
2793 if (regs
.h
.al
== 0xff)
2794 international_keyboard
= 1;
2796 /* Initialize to US settings, for countries that don't have their own. */
2797 keyboard
= keyboard_layout_list
[0].keyboard_map
;
2798 keyboard_map_all
= always
;
2799 dos_keyboard_layout
= 1;
2801 for (i
= 0; i
< (sizeof (keyboard_layout_list
)/sizeof (struct keyboard_layout_list
)); i
++)
2802 if (code
== keyboard_layout_list
[i
].country_code
)
2804 keyboard
= keyboard_layout_list
[i
].keyboard_map
;
2805 keyboard_map_all
= always
;
2806 dos_keyboard_layout
= code
;
2814 unsigned char char_code
; /* normal code */
2815 unsigned char meta_code
; /* M- code */
2816 unsigned char keypad_code
; /* keypad code */
2817 unsigned char editkey_code
; /* edit key */
2818 } keypad_translate_map
[] = {
2819 '0', '0', 0xb0, /* kp-0 */ 0x63, /* insert */
2820 '1', '1', 0xb1, /* kp-1 */ 0x57, /* end */
2821 '2', '2', 0xb2, /* kp-2 */ 0x54, /* down */
2822 '3', '3', 0xb3, /* kp-3 */ 0x56, /* next */
2823 '4', '4', 0xb4, /* kp-4 */ 0x51, /* left */
2824 '5', '5', 0xb5, /* kp-5 */ 0xb5, /* kp-5 */
2825 '6', '6', 0xb6, /* kp-6 */ 0x53, /* right */
2826 '7', '7', 0xb7, /* kp-7 */ 0x50, /* home */
2827 '8', '8', 0xb8, /* kp-8 */ 0x52, /* up */
2828 '9', '9', 0xb9, /* kp-9 */ 0x55, /* prior */
2829 '.', '-', 0xae, /* kp-decimal */ 0xff /* delete */
2834 unsigned char char_code
; /* normal code */
2835 unsigned char keypad_code
; /* keypad code */
2836 } grey_key_translate_map
[] = {
2837 '/', 0xaf, /* kp-decimal */
2838 '*', 0xaa, /* kp-multiply */
2839 '-', 0xad, /* kp-subtract */
2840 '+', 0xab, /* kp-add */
2841 '\r', 0x8d /* kp-enter */
2844 static unsigned short
2845 ibmpc_translate_map
[] =
2847 /* --------------- 00 to 0f --------------- */
2848 Normal
| 0xff, /* Ctrl Break + Alt-NNN */
2849 Alt
| ModFct
| 0x1b, /* Escape */
2850 Normal
| 1, /* '1' */
2851 Normal
| 2, /* '2' */
2852 Normal
| 3, /* '3' */
2853 Normal
| 4, /* '4' */
2854 Normal
| 5, /* '5' */
2855 Normal
| 6, /* '6' */
2856 Normal
| 7, /* '7' */
2857 Normal
| 8, /* '8' */
2858 Normal
| 9, /* '9' */
2859 Normal
| 10, /* '0' */
2860 Normal
| 11, /* '-' */
2861 Normal
| 12, /* '=' */
2862 Special
| 0x08, /* Backspace */
2863 ModFct
| 0x74, /* Tab/Backtab */
2865 /* --------------- 10 to 1f --------------- */
2878 ModFct
| 0x0d, /* Return */
2883 /* --------------- 20 to 2f --------------- */
2892 Map
| 40, /* '\'' */
2894 Ignore
, /* Left shift */
2895 Map
| 41, /* '\\' */
2901 /* --------------- 30 to 3f --------------- */
2908 Ignore
, /* Right shift */
2909 Grey
| 1, /* Grey * */
2911 Normal
| 55, /* ' ' */
2912 Ignore
, /* Caps Lock */
2913 FctKey
| 0xbe, /* F1 */
2914 FctKey
| 0xbf, /* F2 */
2915 FctKey
| 0xc0, /* F3 */
2916 FctKey
| 0xc1, /* F4 */
2917 FctKey
| 0xc2, /* F5 */
2919 /* --------------- 40 to 4f --------------- */
2920 FctKey
| 0xc3, /* F6 */
2921 FctKey
| 0xc4, /* F7 */
2922 FctKey
| 0xc5, /* F8 */
2923 FctKey
| 0xc6, /* F9 */
2924 FctKey
| 0xc7, /* F10 */
2925 Ignore
, /* Num Lock */
2926 Ignore
, /* Scroll Lock */
2927 KeyPad
| 7, /* Home */
2928 KeyPad
| 8, /* Up */
2929 KeyPad
| 9, /* Page Up */
2930 Grey
| 2, /* Grey - */
2931 KeyPad
| 4, /* Left */
2932 KeyPad
| 5, /* Keypad 5 */
2933 KeyPad
| 6, /* Right */
2934 Grey
| 3, /* Grey + */
2935 KeyPad
| 1, /* End */
2937 /* --------------- 50 to 5f --------------- */
2938 KeyPad
| 2, /* Down */
2939 KeyPad
| 3, /* Page Down */
2940 KeyPad
| 0, /* Insert */
2941 KeyPad
| 10, /* Delete */
2942 Shift
| FctKey
| 0xbe, /* (Shift) F1 */
2943 Shift
| FctKey
| 0xbf, /* (Shift) F2 */
2944 Shift
| FctKey
| 0xc0, /* (Shift) F3 */
2945 Shift
| FctKey
| 0xc1, /* (Shift) F4 */
2946 Shift
| FctKey
| 0xc2, /* (Shift) F5 */
2947 Shift
| FctKey
| 0xc3, /* (Shift) F6 */
2948 Shift
| FctKey
| 0xc4, /* (Shift) F7 */
2949 Shift
| FctKey
| 0xc5, /* (Shift) F8 */
2950 Shift
| FctKey
| 0xc6, /* (Shift) F9 */
2951 Shift
| FctKey
| 0xc7, /* (Shift) F10 */
2952 Ctrl
| FctKey
| 0xbe, /* (Ctrl) F1 */
2953 Ctrl
| FctKey
| 0xbf, /* (Ctrl) F2 */
2955 /* --------------- 60 to 6f --------------- */
2956 Ctrl
| FctKey
| 0xc0, /* (Ctrl) F3 */
2957 Ctrl
| FctKey
| 0xc1, /* (Ctrl) F4 */
2958 Ctrl
| FctKey
| 0xc2, /* (Ctrl) F5 */
2959 Ctrl
| FctKey
| 0xc3, /* (Ctrl) F6 */
2960 Ctrl
| FctKey
| 0xc4, /* (Ctrl) F7 */
2961 Ctrl
| FctKey
| 0xc5, /* (Ctrl) F8 */
2962 Ctrl
| FctKey
| 0xc6, /* (Ctrl) F9 */
2963 Ctrl
| FctKey
| 0xc7, /* (Ctrl) F10 */
2964 Alt
| FctKey
| 0xbe, /* (Alt) F1 */
2965 Alt
| FctKey
| 0xbf, /* (Alt) F2 */
2966 Alt
| FctKey
| 0xc0, /* (Alt) F3 */
2967 Alt
| FctKey
| 0xc1, /* (Alt) F4 */
2968 Alt
| FctKey
| 0xc2, /* (Alt) F5 */
2969 Alt
| FctKey
| 0xc3, /* (Alt) F6 */
2970 Alt
| FctKey
| 0xc4, /* (Alt) F7 */
2971 Alt
| FctKey
| 0xc5, /* (Alt) F8 */
2973 /* --------------- 70 to 7f --------------- */
2974 Alt
| FctKey
| 0xc6, /* (Alt) F9 */
2975 Alt
| FctKey
| 0xc7, /* (Alt) F10 */
2976 Ctrl
| FctKey
| 0x6d, /* (Ctrl) Sys Rq */
2977 Ctrl
| KeyPad
| 4, /* (Ctrl) Left */
2978 Ctrl
| KeyPad
| 6, /* (Ctrl) Right */
2979 Ctrl
| KeyPad
| 1, /* (Ctrl) End */
2980 Ctrl
| KeyPad
| 3, /* (Ctrl) Page Down */
2981 Ctrl
| KeyPad
| 7, /* (Ctrl) Home */
2982 Alt
| Map
| 1, /* '1' */
2983 Alt
| Map
| 2, /* '2' */
2984 Alt
| Map
| 3, /* '3' */
2985 Alt
| Map
| 4, /* '4' */
2986 Alt
| Map
| 5, /* '5' */
2987 Alt
| Map
| 6, /* '6' */
2988 Alt
| Map
| 7, /* '7' */
2989 Alt
| Map
| 8, /* '8' */
2991 /* --------------- 80 to 8f --------------- */
2992 Alt
| Map
| 9, /* '9' */
2993 Alt
| Map
| 10, /* '0' */
2994 Alt
| Map
| 11, /* '-' */
2995 Alt
| Map
| 12, /* '=' */
2996 Ctrl
| KeyPad
| 9, /* (Ctrl) Page Up */
2997 FctKey
| 0xc8, /* F11 */
2998 FctKey
| 0xc9, /* F12 */
2999 Shift
| FctKey
| 0xc8, /* (Shift) F11 */
3000 Shift
| FctKey
| 0xc9, /* (Shift) F12 */
3001 Ctrl
| FctKey
| 0xc8, /* (Ctrl) F11 */
3002 Ctrl
| FctKey
| 0xc9, /* (Ctrl) F12 */
3003 Alt
| FctKey
| 0xc8, /* (Alt) F11 */
3004 Alt
| FctKey
| 0xc9, /* (Alt) F12 */
3005 Ctrl
| KeyPad
| 8, /* (Ctrl) Up */
3006 Ctrl
| Grey
| 2, /* (Ctrl) Grey - */
3007 Ctrl
| KeyPad
| 5, /* (Ctrl) Keypad 5 */
3009 /* --------------- 90 to 9f --------------- */
3010 Ctrl
| Grey
| 3, /* (Ctrl) Grey + */
3011 Ctrl
| KeyPad
| 2, /* (Ctrl) Down */
3012 Ctrl
| KeyPad
| 0, /* (Ctrl) Insert */
3013 Ctrl
| KeyPad
| 10, /* (Ctrl) Delete */
3014 Ctrl
| FctKey
| 0x09, /* (Ctrl) Tab */
3015 Ctrl
| Grey
| 0, /* (Ctrl) Grey / */
3016 Ctrl
| Grey
| 1, /* (Ctrl) Grey * */
3017 Alt
| FctKey
| 0x50, /* (Alt) Home */
3018 Alt
| FctKey
| 0x52, /* (Alt) Up */
3019 Alt
| FctKey
| 0x55, /* (Alt) Page Up */
3020 Ignore
, /* NO KEY */
3021 Alt
| FctKey
| 0x51, /* (Alt) Left */
3022 Ignore
, /* NO KEY */
3023 Alt
| FctKey
| 0x53, /* (Alt) Right */
3024 Ignore
, /* NO KEY */
3025 Alt
| FctKey
| 0x57, /* (Alt) End */
3027 /* --------------- a0 to af --------------- */
3028 Alt
| KeyPad
| 2, /* (Alt) Down */
3029 Alt
| KeyPad
| 3, /* (Alt) Page Down */
3030 Alt
| KeyPad
| 0, /* (Alt) Insert */
3031 Alt
| KeyPad
| 10, /* (Alt) Delete */
3032 Alt
| Grey
| 0, /* (Alt) Grey / */
3033 Alt
| FctKey
| 0x09, /* (Alt) Tab */
3034 Alt
| Grey
| 4 /* (Alt) Keypad Enter */
3037 /* These bit-positions corresponds to values returned by BIOS */
3038 #define SHIFT_P 0x0003 /* two bits! */
3039 #define CTRL_P 0x0004
3040 #define ALT_P 0x0008
3041 #define SCRLOCK_P 0x0010
3042 #define NUMLOCK_P 0x0020
3043 #define CAPSLOCK_P 0x0040
3044 #define ALT_GR_P 0x0800
3045 #define SUPER_P 0x4000 /* pseudo */
3046 #define HYPER_P 0x8000 /* pseudo */
3049 dos_get_modifiers (keymask
)
3056 /* Calculate modifier bits */
3057 regs
.h
.ah
= extended_kbd
? 0x12 : 0x02;
3058 int86 (0x16, ®s
, ®s
);
3062 mask
= regs
.h
.al
& (SHIFT_P
| CTRL_P
| ALT_P
|
3063 SCRLOCK_P
| NUMLOCK_P
| CAPSLOCK_P
);
3067 mask
= regs
.h
.al
& (SHIFT_P
|
3068 SCRLOCK_P
| NUMLOCK_P
| CAPSLOCK_P
);
3070 /* Do not break international keyboard support. */
3071 /* When Keyb.Com is loaded, the right Alt key is */
3072 /* used for accessing characters like { and } */
3073 if (regs
.h
.ah
& 2) /* Left ALT pressed ? */
3076 if ((regs
.h
.ah
& 8) != 0) /* Right ALT pressed ? */
3079 if (dos_hyper_key
== 1)
3082 modifiers
|= hyper_modifier
;
3084 else if (dos_super_key
== 1)
3087 modifiers
|= super_modifier
;
3089 else if (!international_keyboard
)
3091 /* If Keyb.Com is NOT installed, let Right Alt behave
3092 like the Left Alt. */
3098 if (regs
.h
.ah
& 1) /* Left CTRL pressed ? */
3101 if (regs
.h
.ah
& 4) /* Right CTRL pressed ? */
3103 if (dos_hyper_key
== 2)
3106 modifiers
|= hyper_modifier
;
3108 else if (dos_super_key
== 2)
3111 modifiers
|= super_modifier
;
3119 modifiers
|= shift_modifier
;
3121 modifiers
|= ctrl_modifier
;
3123 modifiers
|= meta_modifier
;
3130 #define NUM_RECENT_DOSKEYS (100)
3131 int recent_doskeys_index
; /* Index for storing next element into recent_doskeys */
3132 int total_doskeys
; /* Total number of elements stored into recent_doskeys */
3133 Lisp_Object recent_doskeys
; /* A vector, holding the last 100 keystrokes */
3135 DEFUN ("recent-doskeys", Frecent_doskeys
, Srecent_doskeys
, 0, 0, 0,
3136 doc
: /* Return vector of last 100 keyboard input values seen in dos_rawgetc.
3137 Each input key receives two values in this vector: first the ASCII code,
3138 and then the scan code. */)
3141 Lisp_Object
*keys
= XVECTOR (recent_doskeys
)->contents
;
3144 if (total_doskeys
< NUM_RECENT_DOSKEYS
)
3145 return Fvector (total_doskeys
, keys
);
3148 val
= Fvector (NUM_RECENT_DOSKEYS
, keys
);
3149 bcopy (keys
+ recent_doskeys_index
,
3150 XVECTOR (val
)->contents
,
3151 (NUM_RECENT_DOSKEYS
- recent_doskeys_index
) * sizeof (Lisp_Object
));
3153 XVECTOR (val
)->contents
+ NUM_RECENT_DOSKEYS
- recent_doskeys_index
,
3154 recent_doskeys_index
* sizeof (Lisp_Object
));
3159 /* Get a char from keyboard. Function keys are put into the event queue. */
3163 struct input_event event
;
3165 struct display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (SELECTED_FRAME());
3167 #ifndef HAVE_X_WINDOWS
3168 /* Maybe put the cursor where it should be. */
3169 IT_cmgoto (SELECTED_FRAME());
3172 /* The following condition is equivalent to `kbhit ()', except that
3173 it uses the bios to do its job. This pleases DESQview/X. */
3174 while ((regs
.h
.ah
= extended_kbd
? 0x11 : 0x01),
3175 int86 (0x16, ®s
, ®s
),
3176 (regs
.x
.flags
& 0x40) == 0)
3179 register unsigned char c
;
3180 int sc
, code
= -1, mask
, kp_mode
;
3183 regs
.h
.ah
= extended_kbd
? 0x10 : 0x00;
3184 int86 (0x16, ®s
, ®s
);
3189 XVECTOR (recent_doskeys
)->contents
[recent_doskeys_index
++]
3191 if (recent_doskeys_index
== NUM_RECENT_DOSKEYS
)
3192 recent_doskeys_index
= 0;
3193 XVECTOR (recent_doskeys
)->contents
[recent_doskeys_index
++]
3195 if (recent_doskeys_index
== NUM_RECENT_DOSKEYS
)
3196 recent_doskeys_index
= 0;
3198 modifiers
= dos_get_modifiers (&mask
);
3200 #ifndef HAVE_X_WINDOWS
3201 if (!NILP (Vdos_display_scancodes
))
3204 sprintf (buf
, "%02x:%02x*%04x",
3205 (unsigned) (sc
&0xff), (unsigned) c
, mask
);
3206 dos_direct_output (screen_size_Y
- 2, screen_size_X
- 12, buf
, 10);
3214 case 10: /* Ctrl Grey Enter */
3215 code
= Ctrl
| Grey
| 4;
3217 case 13: /* Grey Enter */
3220 case '/': /* Grey / */
3230 /* Try the keyboard-private translation table first. */
3231 if (keyboard
->translate_table
)
3233 struct kbd_translate
*p
= keyboard
->translate_table
;
3237 if (p
->sc
== sc
&& p
->ch
== c
)
3245 /* If the private table didn't translate it, use the general
3249 if (sc
>= (sizeof (ibmpc_translate_map
) / sizeof (short)))
3251 if ((code
= ibmpc_translate_map
[sc
]) == Ignore
)
3258 /* We only look at the keyboard Ctrl/Shift/Alt keys when
3259 Emacs is ready to read a key. Therefore, if they press
3260 `Alt-x' when Emacs is busy, by the time we get to
3261 `dos_get_modifiers', they might have already released the
3262 Alt key, and Emacs gets just `x', which is BAD.
3263 However, for keys with the `Map' property set, the ASCII
3264 code returns zero iff Alt is pressed. So, when we DON'T
3265 have to support international_keyboard, we don't have to
3266 distinguish between the left and right Alt keys, and we
3267 can set the META modifier for any keys with the `Map'
3268 property if they return zero ASCII code (c = 0). */
3270 || ( (code
& 0xf000) == Map
&& !international_keyboard
))
3271 modifiers
|= meta_modifier
;
3273 modifiers
|= ctrl_modifier
;
3275 modifiers
|= shift_modifier
;
3278 switch (code
& 0xf000)
3281 if (c
&& !(mask
& (SHIFT_P
| ALT_P
| CTRL_P
| HYPER_P
| SUPER_P
)))
3283 c
= 0; /* Special */
3296 if (c
== 0) /* ctrl-break */
3298 return c
; /* ALT-nnn */
3300 if (!keyboard_map_all
)
3309 if (c
&& !(mask
& ALT_P
) && !((mask
& SHIFT_P
) && (mask
& CTRL_P
)))
3310 if (!keyboard_map_all
)
3314 if (mask
& ALT_P
&& code
<= 10 && code
> 0 && dos_keypad_mode
& 0x200)
3315 mask
|= SHIFT_P
; /* ALT-1 => M-! etc. */
3319 code
= keyboard
->shifted
[code
];
3321 modifiers
&= ~shift_modifier
;
3324 if ((mask
& ALT_GR_P
) && keyboard
->alt_gr
&& keyboard
->alt_gr
[code
] != ' ')
3325 code
= keyboard
->alt_gr
[code
];
3327 code
= keyboard
->unshifted
[code
];
3332 if (c
== 0xe0) /* edit key */
3335 if ((mask
& (NUMLOCK_P
|CTRL_P
|SHIFT_P
|ALT_P
)) == NUMLOCK_P
) /* numlock on */
3336 kp_mode
= dos_keypad_mode
& 0x03;
3338 kp_mode
= (dos_keypad_mode
>> 4) & 0x03;
3343 if (code
== 10 && dos_decimal_point
)
3344 return dos_decimal_point
;
3345 return keypad_translate_map
[code
].char_code
;
3348 code
= 0xff00 | keypad_translate_map
[code
].keypad_code
;
3352 code
= keypad_translate_map
[code
].meta_code
;
3353 modifiers
= meta_modifier
;
3357 code
= 0xff00 | keypad_translate_map
[code
].editkey_code
;
3364 kp_mode
= ((mask
& (NUMLOCK_P
|CTRL_P
|SHIFT_P
|ALT_P
)) == NUMLOCK_P
) ? 0x04 : 0x40;
3365 if (dos_keypad_mode
& kp_mode
)
3366 code
= 0xff00 | grey_key_translate_map
[code
].keypad_code
;
3368 code
= grey_key_translate_map
[code
].char_code
;
3376 if (!dpyinfo
->mouse_face_hidden
&& INTEGERP (Vmouse_highlight
))
3378 dpyinfo
->mouse_face_hidden
= 1;
3379 clear_mouse_face (dpyinfo
);
3383 event
.kind
= non_ascii_keystroke
;
3385 event
.kind
= ascii_keystroke
;
3387 event
.modifiers
= modifiers
;
3388 event
.frame_or_window
= selected_frame
;
3390 event
.timestamp
= event_timestamp ();
3391 kbd_buffer_store_event (&event
);
3394 if (have_mouse
> 0 && !mouse_preempted
)
3396 int but
, press
, x
, y
, ok
;
3397 int mouse_prev_x
= mouse_last_x
, mouse_prev_y
= mouse_last_y
;
3399 /* Check for mouse movement *before* buttons. */
3400 mouse_check_moved ();
3402 /* If the mouse moved from the spot of its last sighting, we
3403 might need to update mouse highlight. */
3404 if (mouse_last_x
!= mouse_prev_x
|| mouse_last_y
!= mouse_prev_y
)
3406 if (dpyinfo
->mouse_face_hidden
)
3408 dpyinfo
->mouse_face_hidden
= 0;
3409 clear_mouse_face (dpyinfo
);
3412 if (x_autoselect_window_p
)
3415 Lisp_Object mouse_window
;
3417 mouse_window
= window_from_coordinates (SELECTED_FRAME(),
3421 /* A window will be selected only when it is not
3422 selected now. A minubuffer window will be selected
3423 iff it is active. */
3424 if (!EQ (mouse_window
, last_mouse_window
)
3425 && !EQ (mouse_window
, selected_window
)
3426 && (!MINI_WINDOW_P (XWINDOW (mouse_window
))
3427 || (EQ (mouse_window
, minibuf_window
)
3428 && minibuf_level
> 0)))
3430 Fselect_window (mouse_window
);
3432 last_mouse_window
= mouse_window
;
3435 last_mouse_window
= Qnil
;
3437 previous_help_echo
= help_echo
;
3438 help_echo
= help_echo_object
= help_echo_window
= Qnil
;
3440 IT_note_mouse_highlight (SELECTED_FRAME(),
3441 mouse_last_x
, mouse_last_y
);
3442 /* If the contents of the global variable help_echo has
3443 changed, generate a HELP_EVENT. */
3444 if (!NILP (help_echo
) || !NILP (previous_help_echo
))
3446 /* HELP_EVENT takes 2 events in the event loop. */
3447 event
.kind
= HELP_EVENT
;
3448 event
.frame_or_window
= selected_frame
;
3449 event
.arg
= help_echo_object
;
3450 event
.x
= make_number (help_echo_pos
);
3451 event
.timestamp
= event_timestamp ();
3453 kbd_buffer_store_event (&event
);
3454 if (WINDOWP (help_echo_window
))
3455 event
.frame_or_window
= help_echo_window
;
3456 event
.arg
= help_echo
;
3458 kbd_buffer_store_event (&event
);
3462 for (but
= 0; but
< NUM_MOUSE_BUTTONS
; but
++)
3463 for (press
= 0; press
< 2; press
++)
3465 int button_num
= but
;
3468 ok
= mouse_pressed (but
, &x
, &y
);
3470 ok
= mouse_released (but
, &x
, &y
);
3473 /* Allow a simultaneous press/release of Mouse-1 and
3474 Mouse-2 to simulate Mouse-3 on two-button mice. */
3475 if (mouse_button_count
== 2 && but
< 2)
3477 int x2
, y2
; /* don't clobber original coordinates */
3479 /* If only one button is pressed, wait 100 msec and
3480 check again. This way, Speedy Gonzales isn't
3481 punished, while the slow get their chance. */
3482 if (press
&& mouse_pressed (1-but
, &x2
, &y2
)
3483 || !press
&& mouse_released (1-but
, &x2
, &y2
))
3488 if (press
&& mouse_pressed (1-but
, &x2
, &y2
)
3489 || !press
&& mouse_released (1-but
, &x2
, &y2
))
3494 event
.kind
= mouse_click
;
3495 event
.code
= button_num
;
3496 event
.modifiers
= dos_get_modifiers (0)
3497 | (press
? down_modifier
: up_modifier
);
3500 event
.frame_or_window
= selected_frame
;
3502 event
.timestamp
= event_timestamp ();
3503 kbd_buffer_store_event (&event
);
3511 static int prev_get_char
= -1;
3513 /* Return 1 if a key is ready to be read without suspending execution. */
3517 if (prev_get_char
!= -1)
3520 return ((prev_get_char
= dos_rawgetc ()) != -1);
3523 /* Read a key. Return -1 if no key is ready. */
3527 if (prev_get_char
!= -1)
3529 int c
= prev_get_char
;
3534 return dos_rawgetc ();
3537 #ifndef HAVE_X_WINDOWS
3538 /* See xterm.c for more info. */
3540 pixel_to_glyph_coords (f
, pix_x
, pix_y
, x
, y
, bounds
, noclip
)
3542 register int pix_x
, pix_y
;
3543 register int *x
, *y
;
3547 if (bounds
) abort ();
3549 /* Ignore clipping. */
3556 glyph_to_pixel_coords (f
, x
, y
, pix_x
, pix_y
)
3559 register int *pix_x
, *pix_y
;
3565 /* Simulation of X's menus. Nothing too fancy here -- just make it work
3568 Actually, I don't know the meaning of all the parameters of the functions
3569 here -- I only know how they are called by xmenu.c. I could of course
3570 grab the nearest Xlib manual (down the hall, second-to-last door on the
3571 left), but I don't think it's worth the effort. */
3573 /* These hold text of the current and the previous menu help messages. */
3574 static char *menu_help_message
, *prev_menu_help_message
;
3575 /* Pane number and item number of the menu item which generated the
3576 last menu help message. */
3577 static int menu_help_paneno
, menu_help_itemno
;
3584 menu
= (XMenu
*) xmalloc (sizeof (XMenu
));
3585 menu
->allocated
= menu
->count
= menu
->panecount
= menu
->width
= 0;
3589 /* Allocate some (more) memory for MENU ensuring that there is room for one
3593 IT_menu_make_room (XMenu
*menu
)
3595 if (menu
->allocated
== 0)
3597 int count
= menu
->allocated
= 10;
3598 menu
->text
= (char **) xmalloc (count
* sizeof (char *));
3599 menu
->submenu
= (XMenu
**) xmalloc (count
* sizeof (XMenu
*));
3600 menu
->panenumber
= (int *) xmalloc (count
* sizeof (int));
3601 menu
->help_text
= (char **) xmalloc (count
* sizeof (char *));
3603 else if (menu
->allocated
== menu
->count
)
3605 int count
= menu
->allocated
= menu
->allocated
+ 10;
3607 = (char **) xrealloc (menu
->text
, count
* sizeof (char *));
3609 = (XMenu
**) xrealloc (menu
->submenu
, count
* sizeof (XMenu
*));
3611 = (int *) xrealloc (menu
->panenumber
, count
* sizeof (int));
3613 = (char **) xrealloc (menu
->help_text
, count
* sizeof (char *));
3617 /* Search the given menu structure for a given pane number. */
3620 IT_menu_search_pane (XMenu
*menu
, int pane
)
3625 for (i
= 0; i
< menu
->count
; i
++)
3626 if (menu
->submenu
[i
])
3628 if (pane
== menu
->panenumber
[i
])
3629 return menu
->submenu
[i
];
3630 if ((try = IT_menu_search_pane (menu
->submenu
[i
], pane
)))
3636 /* Determine how much screen space a given menu needs. */
3639 IT_menu_calc_size (XMenu
*menu
, int *width
, int *height
)
3641 int i
, h2
, w2
, maxsubwidth
, maxheight
;
3644 maxheight
= menu
->count
;
3645 for (i
= 0; i
< menu
->count
; i
++)
3647 if (menu
->submenu
[i
])
3649 IT_menu_calc_size (menu
->submenu
[i
], &w2
, &h2
);
3650 if (w2
> maxsubwidth
) maxsubwidth
= w2
;
3651 if (i
+ h2
> maxheight
) maxheight
= i
+ h2
;
3654 *width
= menu
->width
+ maxsubwidth
;
3655 *height
= maxheight
;
3658 /* Display MENU at (X,Y) using FACES. */
3661 IT_menu_display (XMenu
*menu
, int y
, int x
, int pn
, int *faces
, int disp_help
)
3663 int i
, j
, face
, width
;
3664 struct glyph
*text
, *p
;
3667 int enabled
, mousehere
;
3669 struct frame
*sf
= SELECTED_FRAME();
3671 menu_help_message
= NULL
;
3673 width
= menu
->width
;
3674 text
= (struct glyph
*) xmalloc ((width
+ 2) * sizeof (struct glyph
));
3675 ScreenGetCursor (&row
, &col
);
3676 mouse_get_xy (&mx
, &my
);
3677 IT_update_begin (sf
);
3678 for (i
= 0; i
< menu
->count
; i
++)
3680 int max_width
= width
+ 2;
3682 IT_cursor_to (y
+ i
, x
);
3684 = (!menu
->submenu
[i
] && menu
->panenumber
[i
]) || (menu
->submenu
[i
]);
3685 mousehere
= (y
+ i
== my
&& x
<= mx
&& mx
< x
+ width
+ 2);
3686 face
= faces
[enabled
+ mousehere
* 2];
3687 /* The following if clause means that we display the menu help
3688 strings even if the menu item is currently disabled. */
3689 if (disp_help
&& enabled
+ mousehere
* 2 >= 2)
3691 menu_help_message
= menu
->help_text
[i
];
3692 menu_help_paneno
= pn
- 1;
3693 menu_help_itemno
= i
;
3696 SET_CHAR_GLYPH (*p
, ' ', face
, 0);
3698 for (j
= 0, q
= menu
->text
[i
]; *q
; j
++)
3702 SET_CHAR_GLYPH (*p
, *q
++, face
, 0);
3705 else /* make '^x' */
3707 SET_CHAR_GLYPH (*p
, '^', face
, 0);
3710 SET_CHAR_GLYPH (*p
, *q
++ + 64, face
, 0);
3714 /* Don't let the menu text overflow into the next screen row. */
3715 if (x
+ max_width
> screen_size_X
)
3717 max_width
= screen_size_X
- x
;
3718 text
[max_width
- 1].u
.ch
= '$'; /* indicate it's truncated */
3720 for (; j
< max_width
- 2; j
++, p
++)
3721 SET_CHAR_GLYPH (*p
, ' ', face
, 0);
3723 SET_CHAR_GLYPH (*p
, menu
->submenu
[i
] ? 16 : ' ', face
, 0);
3725 IT_write_glyphs (text
, max_width
);
3728 IT_cursor_to (row
, col
);
3732 /* --------------------------- X Menu emulation ---------------------- */
3734 /* Report availability of menus. */
3742 /* Create a brand new menu structure. */
3745 XMenuCreate (Display
*foo1
, Window foo2
, char *foo3
)
3747 return IT_menu_create ();
3750 /* Create a new pane and place it on the outer-most level. It is not
3751 clear that it should be placed out there, but I don't know what else
3755 XMenuAddPane (Display
*foo
, XMenu
*menu
, char *txt
, int enable
)
3763 IT_menu_make_room (menu
);
3764 menu
->submenu
[menu
->count
] = IT_menu_create ();
3765 menu
->text
[menu
->count
] = txt
;
3766 menu
->panenumber
[menu
->count
] = ++menu
->panecount
;
3767 menu
->help_text
[menu
->count
] = NULL
;
3770 /* Adjust length for possible control characters (which will
3771 be written as ^x). */
3772 for (len
= strlen (txt
), p
= txt
; *p
; p
++)
3776 if (len
> menu
->width
)
3779 return menu
->panecount
;
3782 /* Create a new item in a menu pane. */
3785 XMenuAddSelection (Display
*bar
, XMenu
*menu
, int pane
,
3786 int foo
, char *txt
, int enable
, char *help_text
)
3792 if (!(menu
= IT_menu_search_pane (menu
, pane
)))
3794 IT_menu_make_room (menu
);
3795 menu
->submenu
[menu
->count
] = (XMenu
*) 0;
3796 menu
->text
[menu
->count
] = txt
;
3797 menu
->panenumber
[menu
->count
] = enable
;
3798 menu
->help_text
[menu
->count
] = help_text
;
3801 /* Adjust length for possible control characters (which will
3802 be written as ^x). */
3803 for (len
= strlen (txt
), p
= txt
; *p
; p
++)
3807 if (len
> menu
->width
)
3813 /* Decide where the menu would be placed if requested at (X,Y). */
3816 XMenuLocate (Display
*foo0
, XMenu
*menu
, int foo1
, int foo2
, int x
, int y
,
3817 int *ulx
, int *uly
, int *width
, int *height
)
3819 IT_menu_calc_size (menu
, width
, height
);
3825 struct IT_menu_state
3827 void *screen_behind
;
3834 /* Display menu, wait for user's response, and return that response. */
3837 XMenuActivate (Display
*foo
, XMenu
*menu
, int *pane
, int *selidx
,
3838 int x0
, int y0
, unsigned ButtonMask
, char **txt
,
3839 void (*help_callback
)(char *, int, int))
3841 struct IT_menu_state
*state
;
3846 Lisp_Object selectface
;
3847 int leave
, result
, onepane
;
3848 int title_faces
[4]; /* face to display the menu title */
3849 int buffers_num_deleted
= 0;
3850 struct frame
*sf
= SELECTED_FRAME();
3851 Lisp_Object saved_echo_area_message
;
3853 /* Just in case we got here without a mouse present... */
3854 if (have_mouse
<= 0)
3855 return XM_IA_SELECT
;
3856 /* Don't allow non-positive x0 and y0, lest the menu will wrap
3857 around the display. */
3863 /* We will process all the mouse events directly, so we had
3864 better prevent dos_rawgetc from stealing them from us. */
3867 state
= alloca (menu
->panecount
* sizeof (struct IT_menu_state
));
3868 screensize
= screen_size
* 2;
3870 = lookup_derived_face (sf
, intern ("msdos-menu-passive-face"),
3873 = lookup_derived_face (sf
, intern ("msdos-menu-active-face"),
3875 selectface
= intern ("msdos-menu-select-face");
3876 faces
[2] = lookup_derived_face (sf
, selectface
,
3878 faces
[3] = lookup_derived_face (sf
, selectface
,
3881 /* Make sure the menu title is always displayed with
3882 `msdos-menu-active-face', no matter where the mouse pointer is. */
3883 for (i
= 0; i
< 4; i
++)
3884 title_faces
[i
] = faces
[3];
3888 /* Don't let the title for the "Buffers" popup menu include a
3889 digit (which is ugly).
3891 This is a terrible kludge, but I think the "Buffers" case is
3892 the only one where the title includes a number, so it doesn't
3893 seem to be necessary to make this more general. */
3894 if (strncmp (menu
->text
[0], "Buffers 1", 9) == 0)
3896 menu
->text
[0][7] = '\0';
3897 buffers_num_deleted
= 1;
3900 /* We need to save the current echo area message, so that we could
3901 restore it below, before we exit. See the commentary below,
3902 before the call to message_with_string. */
3903 saved_echo_area_message
= Fcurrent_message ();
3904 state
[0].menu
= menu
;
3906 ScreenRetrieve (state
[0].screen_behind
= xmalloc (screensize
));
3908 /* Turn off the cursor. Otherwise it shows through the menu
3909 panes, which is ugly. */
3910 IT_display_cursor (0);
3912 /* Display the menu title. */
3913 IT_menu_display (menu
, y0
- 1, x0
- 1, 1, title_faces
, 0);
3914 if (buffers_num_deleted
)
3915 menu
->text
[0][7] = ' ';
3916 if ((onepane
= menu
->count
== 1 && menu
->submenu
[0]))
3918 menu
->width
= menu
->submenu
[0]->width
;
3919 state
[0].menu
= menu
->submenu
[0];
3923 state
[0].menu
= menu
;
3925 state
[0].x
= x0
- 1;
3927 state
[0].pane
= onepane
;
3929 mouse_last_x
= -1; /* A hack that forces display. */
3933 if (!mouse_visible
) mouse_on ();
3934 mouse_check_moved ();
3935 if (sf
->mouse_moved
)
3937 sf
->mouse_moved
= 0;
3938 result
= XM_IA_SELECT
;
3939 mouse_get_xy (&x
, &y
);
3940 for (i
= 0; i
< statecount
; i
++)
3941 if (state
[i
].x
<= x
&& x
< state
[i
].x
+ state
[i
].menu
->width
+ 2)
3943 int dy
= y
- state
[i
].y
;
3944 if (0 <= dy
&& dy
< state
[i
].menu
->count
)
3946 if (!state
[i
].menu
->submenu
[dy
])
3947 if (state
[i
].menu
->panenumber
[dy
])
3948 result
= XM_SUCCESS
;
3950 result
= XM_IA_SELECT
;
3951 *pane
= state
[i
].pane
- 1;
3953 /* We hit some part of a menu, so drop extra menus that
3954 have been opened. That does not include an open and
3956 if (i
!= statecount
- 2
3957 || state
[i
].menu
->submenu
[dy
] != state
[i
+1].menu
)
3958 while (i
!= statecount
- 1)
3962 ScreenUpdate (state
[statecount
].screen_behind
);
3963 if (screen_virtual_segment
)
3964 dosv_refresh_virtual_screen (0, screen_size
);
3965 xfree (state
[statecount
].screen_behind
);
3967 if (i
== statecount
- 1 && state
[i
].menu
->submenu
[dy
])
3969 IT_menu_display (state
[i
].menu
,
3974 state
[statecount
].menu
= state
[i
].menu
->submenu
[dy
];
3975 state
[statecount
].pane
= state
[i
].menu
->panenumber
[dy
];
3977 ScreenRetrieve (state
[statecount
].screen_behind
3978 = xmalloc (screensize
));
3980 = state
[i
].x
+ state
[i
].menu
->width
+ 2;
3981 state
[statecount
].y
= y
;
3986 IT_menu_display (state
[statecount
- 1].menu
,
3987 state
[statecount
- 1].y
,
3988 state
[statecount
- 1].x
,
3989 state
[statecount
- 1].pane
,
3994 if ((menu_help_message
|| prev_menu_help_message
)
3995 && menu_help_message
!= prev_menu_help_message
)
3997 help_callback (menu_help_message
,
3998 menu_help_paneno
, menu_help_itemno
);
3999 IT_display_cursor (0);
4000 prev_menu_help_message
= menu_help_message
;
4002 /* We are busy-waiting for the mouse to move, so let's be nice
4003 to other Windows applications by releasing our time slice. */
4006 for (b
= 0; b
< mouse_button_count
&& !leave
; b
++)
4008 /* Only leave if user both pressed and released the mouse, and in
4009 that order. This avoids popping down the menu pane unless
4010 the user is really done with it. */
4011 if (mouse_pressed (b
, &x
, &y
))
4013 while (mouse_button_depressed (b
, &x
, &y
))
4017 (void) mouse_released (b
, &x
, &y
);
4022 ScreenUpdate (state
[0].screen_behind
);
4023 if (screen_virtual_segment
)
4024 dosv_refresh_virtual_screen (0, screen_size
);
4026 /* We have a situation here. ScreenUpdate has just restored the
4027 screen contents as it was before we started drawing this menu.
4028 That includes any echo area message that could have been
4029 displayed back then. (In reality, that echo area message will
4030 almost always be the ``keystroke echo'' that echoes the sequence
4031 of menu items chosen by the user.) However, if the menu had some
4032 help messages, then displaying those messages caused Emacs to
4033 forget about the original echo area message. So when
4034 ScreenUpdate restored it, it created a discrepancy between the
4035 actual screen contents and what Emacs internal data structures
4038 To avoid this conflict, we force Emacs to restore the original
4039 echo area message as we found it when we entered this function.
4040 The irony of this is that we then erase the restored message
4041 right away, so the only purpose of restoring it is so that
4042 erasing it works correctly... */
4043 if (! NILP (saved_echo_area_message
))
4044 message_with_string ("%s", saved_echo_area_message
, 0);
4046 while (statecount
--)
4047 xfree (state
[statecount
].screen_behind
);
4048 IT_display_cursor (1); /* turn cursor back on */
4049 /* Clean up any mouse events that are waiting inside Emacs event queue.
4050 These events are likely to be generated before the menu was even
4051 displayed, probably because the user pressed and released the button
4052 (which invoked the menu) too quickly. If we don't remove these events,
4053 Emacs will process them after we return and surprise the user. */
4054 discard_mouse_events ();
4055 mouse_clear_clicks ();
4056 if (!kbd_buffer_events_waiting (1))
4057 clear_input_pending ();
4058 /* Allow mouse events generation by dos_rawgetc. */
4063 /* Dispose of a menu. */
4066 XMenuDestroy (Display
*foo
, XMenu
*menu
)
4069 if (menu
->allocated
)
4071 for (i
= 0; i
< menu
->count
; i
++)
4072 if (menu
->submenu
[i
])
4073 XMenuDestroy (foo
, menu
->submenu
[i
]);
4075 xfree (menu
->submenu
);
4076 xfree (menu
->panenumber
);
4077 xfree (menu
->help_text
);
4080 menu_help_message
= prev_menu_help_message
= NULL
;
4084 x_pixel_width (struct frame
*f
)
4086 return FRAME_WIDTH (f
);
4090 x_pixel_height (struct frame
*f
)
4092 return FRAME_HEIGHT (f
);
4094 #endif /* !HAVE_X_WINDOWS */
4096 /* ----------------------- DOS / UNIX conversion --------------------- */
4098 void msdos_downcase_filename (unsigned char *);
4100 /* Destructively turn backslashes into slashes. */
4103 dostounix_filename (p
)
4106 msdos_downcase_filename (p
);
4116 /* Destructively turn slashes into backslashes. */
4119 unixtodos_filename (p
)
4122 if (p
[1] == ':' && *p
>= 'A' && *p
<= 'Z')
4136 /* Get the default directory for a given drive. 0=def, 1=A, 2=B, ... */
4139 getdefdir (drive
, dst
)
4143 char in_path
[4], *p
= in_path
;
4146 /* Generate "X:." (when drive is X) or "." (when drive is 0). */
4149 *p
++ = drive
+ 'A' - 1;
4156 _fixpath (in_path
, dst
);
4157 /* _fixpath can set errno to ENOSYS on non-LFN systems because
4158 it queries the LFN support, so ignore that error. */
4159 if ((errno
&& errno
!= ENOSYS
) || *dst
== '\0')
4162 msdos_downcase_filename (dst
);
4169 emacs_root_dir (void)
4171 static char root_dir
[4];
4173 sprintf (root_dir
, "%c:/", 'A' + getdisk ());
4174 root_dir
[0] = tolower (root_dir
[0]);
4178 /* Remove all CR's that are followed by a LF. */
4183 register unsigned char *buf
;
4185 unsigned char *np
= buf
;
4186 unsigned char *startp
= buf
;
4187 unsigned char *endp
= buf
+ n
;
4191 while (buf
< endp
- 1)
4195 if (*(++buf
) != 0x0a)
4206 #if defined(__DJGPP__) && __DJGPP__ == 2 && __DJGPP_MINOR__ == 0
4208 /* In DJGPP v2.0, library `write' can call `malloc', which might
4209 cause relocation of the buffer whose address we get in ADDR.
4210 Here is a version of `write' that avoids calling `malloc',
4211 to serve us until such time as the library is fixed.
4212 Actually, what we define here is called `__write', because
4213 `write' is a stub that just jmp's to `__write' (to be
4214 POSIXLY-correct with respect to the global name-space). */
4216 #include <io.h> /* for _write */
4217 #include <libc/dosio.h> /* for __file_handle_modes[] */
4219 static char xbuf
[64 * 1024]; /* DOS cannot write more in one chunk */
4221 #define XBUF_END (xbuf + sizeof (xbuf) - 1)
4224 __write (int handle
, const void *buffer
, size_t count
)
4229 if(__file_handle_modes
[handle
] & O_BINARY
)
4230 return _write (handle
, buffer
, count
);
4234 const char *bp
= buffer
;
4235 int total_written
= 0;
4236 int nmoved
= 0, ncr
= 0;
4240 /* The next test makes sure there's space for at least 2 more
4241 characters in xbuf[], so both CR and LF can be put there. */
4253 if (xbp
>= XBUF_END
|| !count
)
4255 size_t to_write
= nmoved
+ ncr
;
4256 int written
= _write (handle
, xbuf
, to_write
);
4261 total_written
+= nmoved
; /* CRs aren't counted in ret value */
4263 /* If some, but not all were written (disk full?), return
4264 an estimate of the total written bytes not counting CRs. */
4265 if (written
< to_write
)
4266 return total_written
- (to_write
- written
) * nmoved
/to_write
;
4273 return total_written
;
4277 /* A low-level file-renaming function which works around Windows 95 bug.
4278 This is pulled directly out of DJGPP v2.01 library sources, and only
4279 used when you compile with DJGPP v2.0. */
4283 int _rename(const char *old
, const char *new)
4286 int olen
= strlen(old
) + 1;
4288 int use_lfn
= _USE_LFN
;
4289 char tempfile
[FILENAME_MAX
];
4290 const char *orig
= old
;
4293 r
.x
.dx
= __tb_offset
;
4294 r
.x
.di
= __tb_offset
+ olen
;
4295 r
.x
.ds
= r
.x
.es
= __tb_segment
;
4299 /* Windows 95 bug: for some filenames, when you rename
4300 file -> file~ (as in Emacs, to leave a backup), the
4301 short 8+3 alias doesn't change, which effectively
4302 makes OLD and NEW the same file. We must rename
4303 through a temporary file to work around this. */
4305 char *pbase
= 0, *p
;
4306 static char try_char
[] = "abcdefghijklmnopqrstuvwxyz012345789";
4307 int idx
= sizeof(try_char
) - 1;
4309 /* Generate a temporary name. Can't use `tmpnam', since $TMPDIR
4310 might point to another drive, which will fail the DOS call. */
4311 strcpy(tempfile
, old
);
4312 for (p
= tempfile
; *p
; p
++) /* ensure temporary is on the same drive */
4313 if (*p
== '/' || *p
== '\\' || *p
== ':')
4319 strcpy(pbase
, "X$$djren$$.$$temp$$");
4325 *pbase
= try_char
[--idx
];
4326 } while (_chmod(tempfile
, 0) != -1);
4329 _put_path2(tempfile
, olen
);
4331 __dpmi_int(0x21, &r
);
4334 errno
= __doserr_to_errno(r
.x
.ax
);
4338 /* Now create a file with the original name. This will
4339 ensure that NEW will always have a 8+3 alias
4340 different from that of OLD. (Seems to be required
4341 when NameNumericTail in the Registry is set to 0.) */
4342 lfn_fd
= _creat(old
, 0);
4344 olen
= strlen(tempfile
) + 1;
4346 r
.x
.di
= __tb_offset
+ olen
;
4355 _put_path2(new, olen
);
4357 __dpmi_int(0x21, &r
);
4360 if (r
.x
.ax
== 5 && i
== 0) /* access denied */
4361 remove(new); /* and try again */
4364 errno
= __doserr_to_errno(r
.x
.ax
);
4366 /* Restore to original name if we renamed it to temporary. */
4374 _put_path2(orig
, olen
);
4375 _put_path(tempfile
);
4377 __dpmi_int(0x21, &r
);
4386 /* Success. Delete the file possibly created to work
4387 around the Windows 95 bug. */
4389 return (_close (lfn_fd
) == 0) ? remove (orig
) : -1;
4393 #endif /* __DJGPP__ == 2 && __DJGPP_MINOR__ == 0 */
4395 DEFUN ("msdos-long-file-names", Fmsdos_long_file_names
, Smsdos_long_file_names
,
4397 doc
: /* Return non-nil if long file names are supported on MSDOS. */)
4400 return (_USE_LFN
? Qt
: Qnil
);
4403 /* Convert alphabetic characters in a filename to lower-case. */
4406 msdos_downcase_filename (p
)
4407 register unsigned char *p
;
4409 /* Always lower-case drive letters a-z, even if the filesystem
4410 preserves case in filenames.
4411 This is so MSDOS filenames could be compared by string comparison
4412 functions that are case-sensitive. Even case-preserving filesystems
4413 do not distinguish case in drive letters. */
4414 if (p
[1] == ':' && *p
>= 'A' && *p
<= 'Z')
4420 /* Under LFN we expect to get pathnames in their true case. */
4421 if (NILP (Fmsdos_long_file_names ()))
4423 if (*p
>= 'A' && *p
<= 'Z')
4427 DEFUN ("msdos-downcase-filename", Fmsdos_downcase_filename
, Smsdos_downcase_filename
,
4429 doc
: /* Convert alphabetic characters in FILENAME to lower case and return that.
4430 When long filenames are supported, doesn't change FILENAME.
4431 If FILENAME is not a string, returns nil.
4432 The argument object is never altered--the value is a copy. */)
4434 Lisp_Object filename
;
4438 if (! STRINGP (filename
))
4441 tem
= Fcopy_sequence (filename
);
4442 msdos_downcase_filename (XSTRING (tem
)->data
);
4446 /* The Emacs root directory as determined by init_environment. */
4448 static char emacsroot
[MAXPATHLEN
];
4451 rootrelativepath (rel
)
4454 static char result
[MAXPATHLEN
+ 10];
4456 strcpy (result
, emacsroot
);
4457 strcat (result
, "/");
4458 strcat (result
, rel
);
4462 /* Define a lot of environment variables if not already defined. Don't
4463 remove anything unless you know what you're doing -- lots of code will
4464 break if one or more of these are missing. */
4467 init_environment (argc
, argv
, skip_args
)
4474 static const char * const tempdirs
[] = {
4475 "$TMPDIR", "$TEMP", "$TMP", "c:/"
4478 const int imax
= sizeof (tempdirs
) / sizeof (tempdirs
[0]);
4480 /* Make sure they have a usable $TMPDIR. Many Emacs functions use
4481 temporary files and assume "/tmp" if $TMPDIR is unset, which
4482 will break on DOS/Windows. Refuse to work if we cannot find
4483 a directory, not even "c:/", usable for that purpose. */
4484 for (i
= 0; i
< imax
; i
++)
4486 const char *tmp
= tempdirs
[i
];
4489 tmp
= getenv (tmp
+ 1);
4490 /* Note that `access' can lie to us if the directory resides on a
4491 read-only filesystem, like CD-ROM or a write-protected floppy.
4492 The only way to be really sure is to actually create a file and
4493 see if it succeeds. But I think that's too much to ask. */
4494 if (tmp
&& access (tmp
, D_OK
) == 0)
4496 setenv ("TMPDIR", tmp
, 1);
4503 Fcons (build_string ("no usable temporary directories found!!"),
4505 "While setting TMPDIR: ");
4507 /* Note the startup time, so we know not to clear the screen if we
4508 exit immediately; see IT_reset_terminal_modes.
4509 (Yes, I know `clock' returns zero the first time it's called, but
4510 I do this anyway, in case some wiseguy changes that at some point.) */
4511 startup_time
= clock ();
4513 /* Find our root from argv[0]. Assuming argv[0] is, say,
4514 "c:/emacs/bin/emacs.exe" our root will be "c:/emacs". */
4515 root
= alloca (MAXPATHLEN
+ 20);
4516 _fixpath (argv
[0], root
);
4517 msdos_downcase_filename (root
);
4518 len
= strlen (root
);
4519 while (len
> 0 && root
[len
] != '/' && root
[len
] != ':')
4523 && (strcmp (root
+ len
- 4, "/bin") == 0
4524 || strcmp (root
+ len
- 4, "/src") == 0)) /* under a debugger */
4525 root
[len
- 4] = '\0';
4527 strcpy (root
, "c:/emacs"); /* let's be defensive */
4528 len
= strlen (root
);
4529 strcpy (emacsroot
, root
);
4531 /* We default HOME to our root. */
4532 setenv ("HOME", root
, 0);
4534 /* We default EMACSPATH to root + "/bin". */
4535 strcpy (root
+ len
, "/bin");
4536 setenv ("EMACSPATH", root
, 0);
4538 /* I don't expect anybody to ever use other terminals so the internal
4539 terminal is the default. */
4540 setenv ("TERM", "internal", 0);
4542 #ifdef HAVE_X_WINDOWS
4543 /* Emacs expects DISPLAY to be set. */
4544 setenv ("DISPLAY", "unix:0.0", 0);
4547 /* SHELL is a bit tricky -- COMSPEC is the closest we come, but we must
4548 downcase it and mirror the backslashes. */
4549 s
= getenv ("COMSPEC");
4550 if (!s
) s
= "c:/command.com";
4551 t
= alloca (strlen (s
) + 1);
4553 dostounix_filename (t
);
4554 setenv ("SHELL", t
, 0);
4556 /* PATH is also downcased and backslashes mirrored. */
4557 s
= getenv ("PATH");
4559 t
= alloca (strlen (s
) + 3);
4560 /* Current directory is always considered part of MsDos's path but it is
4561 not normally mentioned. Now it is. */
4562 strcat (strcpy (t
, ".;"), s
);
4563 dostounix_filename (t
); /* Not a single file name, but this should work. */
4564 setenv ("PATH", t
, 1);
4566 /* In some sense all dos users have root privileges, so... */
4567 setenv ("USER", "root", 0);
4568 setenv ("NAME", getenv ("USER"), 0);
4570 /* Time zone determined from country code. To make this possible, the
4571 country code may not span more than one time zone. In other words,
4572 in the USA, you lose. */
4574 switch (dos_country_code
)
4576 case 31: /* Belgium */
4577 case 32: /* The Netherlands */
4578 case 33: /* France */
4579 case 34: /* Spain */
4580 case 36: /* Hungary */
4581 case 38: /* Yugoslavia (or what's left of it?) */
4582 case 39: /* Italy */
4583 case 41: /* Switzerland */
4584 case 42: /* Tjekia */
4585 case 45: /* Denmark */
4586 case 46: /* Sweden */
4587 case 47: /* Norway */
4588 case 48: /* Poland */
4589 case 49: /* Germany */
4590 /* Daylight saving from last Sunday in March to last Sunday in
4591 September, both at 2AM. */
4592 setenv ("TZ", "MET-01METDST-02,M3.5.0/02:00,M9.5.0/02:00", 0);
4594 case 44: /* United Kingdom */
4595 case 351: /* Portugal */
4596 case 354: /* Iceland */
4597 setenv ("TZ", "GMT+00", 0);
4599 case 81: /* Japan */
4600 case 82: /* Korea */
4601 setenv ("TZ", "JST-09", 0);
4603 case 90: /* Turkey */
4604 case 358: /* Finland */
4605 setenv ("TZ", "EET-02", 0);
4607 case 972: /* Israel */
4608 /* This is an approximation. (For exact rules, use the
4609 `zoneinfo/israel' file which comes with DJGPP, but you need
4610 to install it in `/usr/share/zoneinfo/' directory first.) */
4611 setenv ("TZ", "IST-02IDT-03,M4.1.6/00:00,M9.5.6/01:00", 0);
4619 static int break_stat
; /* BREAK check mode status. */
4620 static int stdin_stat
; /* stdin IOCTL status. */
4624 /* These must be global. */
4625 static _go32_dpmi_seginfo ctrl_break_vector
;
4626 static _go32_dpmi_registers ctrl_break_regs
;
4627 static int ctrlbreakinstalled
= 0;
4629 /* Interrupt level detection of Ctrl-Break. Don't do anything fancy here! */
4632 ctrl_break_func (regs
)
4633 _go32_dpmi_registers
*regs
;
4639 install_ctrl_break_check ()
4641 if (!ctrlbreakinstalled
)
4643 /* Don't press Ctrl-Break if you don't have either DPMI or Emacs
4644 was compiler with Djgpp 1.11 maintenance level 5 or later! */
4645 ctrlbreakinstalled
= 1;
4646 ctrl_break_vector
.pm_offset
= (int) ctrl_break_func
;
4647 _go32_dpmi_allocate_real_mode_callback_iret (&ctrl_break_vector
,
4649 _go32_dpmi_set_real_mode_interrupt_vector (0x1b, &ctrl_break_vector
);
4653 #endif /* __DJGPP__ < 2 */
4655 /* Turn off Dos' Ctrl-C checking and inhibit interpretation of
4656 control chars by DOS. Determine the keyboard type. */
4661 union REGS inregs
, outregs
;
4662 static int first_time
= 1;
4664 break_stat
= getcbrk ();
4667 install_ctrl_break_check ();
4673 int86 (0x15, &inregs
, &outregs
);
4674 extended_kbd
= (!outregs
.x
.cflag
) && (outregs
.h
.ah
== 0);
4678 if (internal_terminal
4679 #ifdef HAVE_X_WINDOWS
4680 && inhibit_window_system
4684 inregs
.x
.ax
= 0x0021;
4685 int86 (0x33, &inregs
, &outregs
);
4686 have_mouse
= (outregs
.x
.ax
& 0xffff) == 0xffff;
4689 /* Reportedly, the above doesn't work for some mouse drivers. There
4690 is an additional detection method that should work, but might be
4691 a little slower. Use that as an alternative. */
4692 inregs
.x
.ax
= 0x0000;
4693 int86 (0x33, &inregs
, &outregs
);
4694 have_mouse
= (outregs
.x
.ax
& 0xffff) == 0xffff;
4699 have_mouse
= 1; /* enable mouse */
4701 mouse_setup_buttons (outregs
.x
.bx
);
4702 mouse_position_hook
= &mouse_get_pos
;
4706 #ifndef HAVE_X_WINDOWS
4708 /* Save the cursor shape used outside Emacs. */
4709 outside_cursor
= _farpeekw (_dos_ds
, 0x460);
4718 stdin_stat
= setmode (fileno (stdin
), O_BINARY
);
4719 return (stdin_stat
!= -1);
4722 return (setmode (fileno (stdin
), O_BINARY
) != -1);
4724 #else /* __DJGPP__ < 2 */
4728 /* I think it is wrong to overwrite `stdin_stat' every time
4729 but the first one this function is called, but I don't
4730 want to change the way it used to work in v1.x.--EZ */
4732 inregs
.x
.ax
= 0x4400; /* Get IOCTL status. */
4733 inregs
.x
.bx
= 0x00; /* 0 = stdin. */
4734 intdos (&inregs
, &outregs
);
4735 stdin_stat
= outregs
.h
.dl
;
4737 inregs
.x
.dx
= stdin_stat
| 0x0020; /* raw mode */
4738 inregs
.x
.ax
= 0x4401; /* Set IOCTL status */
4739 intdos (&inregs
, &outregs
);
4740 return !outregs
.x
.cflag
;
4742 #endif /* __DJGPP__ < 2 */
4745 /* Restore status of standard input and Ctrl-C checking. */
4750 union REGS inregs
, outregs
;
4752 setcbrk (break_stat
);
4757 #ifndef HAVE_X_WINDOWS
4758 /* Restore the cursor shape we found on startup. */
4762 inregs
.x
.cx
= outside_cursor
;
4763 int86 (0x10, &inregs
, &outregs
);
4767 return (setmode (fileno (stdin
), stdin_stat
) != -1);
4769 #else /* not __DJGPP__ >= 2 */
4771 inregs
.x
.ax
= 0x4401; /* Set IOCTL status. */
4772 inregs
.x
.bx
= 0x00; /* 0 = stdin. */
4773 inregs
.x
.dx
= stdin_stat
;
4774 intdos (&inregs
, &outregs
);
4775 return !outregs
.x
.cflag
;
4777 #endif /* not __DJGPP__ >= 2 */
4781 /* Run command as specified by ARGV in directory DIR.
4782 The command is run with input from TEMPIN, output to
4783 file TEMPOUT and stderr to TEMPERR. */
4786 run_msdos_command (argv
, working_dir
, tempin
, tempout
, temperr
, envv
)
4787 unsigned char **argv
;
4788 const char *working_dir
;
4789 int tempin
, tempout
, temperr
;
4792 char *saveargv1
, *saveargv2
, *lowcase_argv0
, *pa
, *pl
;
4793 char oldwd
[MAXPATHLEN
+ 1]; /* Fixed size is safe on MSDOS. */
4794 int msshell
, result
= -1;
4795 int inbak
, outbak
, errbak
;
4799 /* Get current directory as MSDOS cwd is not per-process. */
4802 /* If argv[0] is the shell, it might come in any lettercase.
4803 Since `Fmember' is case-sensitive, we need to downcase
4804 argv[0], even if we are on case-preserving filesystems. */
4805 lowcase_argv0
= alloca (strlen (argv
[0]) + 1);
4806 for (pa
= argv
[0], pl
= lowcase_argv0
; *pa
; pl
++)
4809 if (*pl
>= 'A' && *pl
<= 'Z')
4814 cmd
= Ffile_name_nondirectory (build_string (lowcase_argv0
));
4815 msshell
= !NILP (Fmember (cmd
, Fsymbol_value (intern ("msdos-shells"))))
4816 && !strcmp ("-c", argv
[1]);
4819 saveargv1
= argv
[1];
4820 saveargv2
= argv
[2];
4822 /* We only need to mirror slashes if a DOS shell will be invoked
4823 not via `system' (which does the mirroring itself). Yes, that
4824 means DJGPP v1.x will lose here. */
4825 if (argv
[2] && argv
[3])
4827 char *p
= alloca (strlen (argv
[2]) + 1);
4829 strcpy (argv
[2] = p
, saveargv2
);
4830 while (*p
&& isspace (*p
))
4842 chdir (working_dir
);
4846 if (inbak
< 0 || outbak
< 0 || errbak
< 0)
4847 goto done
; /* Allocation might fail due to lack of descriptors. */
4850 mouse_get_xy (&x
, &y
);
4852 dos_ttcooked (); /* do it here while 0 = stdin */
4860 if (msshell
&& !argv
[3])
4862 /* MS-DOS native shells are too restrictive. For starters, they
4863 cannot grok commands longer than 126 characters. In DJGPP v2
4864 and later, `system' is much smarter, so we'll call it instead. */
4868 /* A shell gets a single argument--its full command
4869 line--whose original was saved in `saveargv2'. */
4871 /* Don't let them pass empty command lines to `system', since
4872 with some shells it will try to invoke an interactive shell,
4873 which will hang Emacs. */
4874 for (cmnd
= saveargv2
; *cmnd
&& isspace (*cmnd
); cmnd
++)
4878 extern char **environ
;
4879 char **save_env
= environ
;
4880 int save_system_flags
= __system_flags
;
4882 /* Request the most powerful version of `system'. We need
4883 all the help we can get to avoid calling stock DOS shells. */
4884 __system_flags
= (__system_redirect
4885 | __system_use_shell
4886 | __system_allow_multiple_cmds
4887 | __system_allow_long_cmds
4888 | __system_handle_null_commands
4889 | __system_emulate_chdir
);
4892 result
= system (cmnd
);
4893 __system_flags
= save_system_flags
;
4897 result
= 0; /* emulate Unixy shell behavior with empty cmd line */
4901 #endif /* __DJGPP__ > 1 */
4903 result
= spawnve (P_WAIT
, argv
[0], argv
, envv
);
4908 emacs_close (inbak
);
4909 emacs_close (outbak
);
4910 emacs_close (errbak
);
4916 mouse_moveto (x
, y
);
4919 /* Some programs might change the meaning of the highest bit of the
4920 text attribute byte, so we get blinking characters instead of the
4921 bright background colors. Restore that. */
4928 argv
[1] = saveargv1
;
4929 argv
[2] = saveargv2
;
4937 fprintf (stderr
, "%s not yet implemented\r\n", badfunc
);
4944 /* ------------------------- Compatibility functions -------------------
4949 /* Hostnames for a pc are not really funny,
4950 but they are used in change log so we emulate the best we can. */
4952 gethostname (p
, size
)
4956 char *q
= egetenv ("HOSTNAME");
4963 /* When time zones are set from Ms-Dos too many C-libraries are playing
4964 tricks with time values. We solve this by defining our own version
4965 of `gettimeofday' bypassing GO32. Our version needs to be initialized
4966 once and after each call to `tzset' with TZ changed. That is
4967 accomplished by aliasing tzset to init_gettimeofday. */
4969 static struct tm time_rec
;
4972 gettimeofday (struct timeval
*tp
, struct timezone
*tzp
)
4980 if (t
.ti_hour
< time_rec
.tm_hour
) /* midnight wrap */
4984 time_rec
.tm_year
= d
.da_year
- 1900;
4985 time_rec
.tm_mon
= d
.da_mon
- 1;
4986 time_rec
.tm_mday
= d
.da_day
;
4989 time_rec
.tm_hour
= t
.ti_hour
;
4990 time_rec
.tm_min
= t
.ti_min
;
4991 time_rec
.tm_sec
= t
.ti_sec
;
4994 tm
.tm_gmtoff
= dos_timezone_offset
;
4996 tp
->tv_sec
= mktime (&tm
); /* may modify tm */
4997 tp
->tv_usec
= t
.ti_hund
* (1000000 / 100);
4999 /* Ignore tzp; it's obsolescent. */
5003 #endif /* __DJGPP__ < 2 */
5006 * A list of unimplemented functions that we silently ignore.
5010 unsigned alarm (s
) unsigned s
; {}
5011 fork () { return 0; }
5012 int kill (x
, y
) int x
, y
; { return -1; }
5014 void volatile pause () {}
5015 sigsetmask (x
) int x
; { return 0; }
5016 sigblock (mask
) int mask
; { return 0; }
5019 void request_sigio (void) {}
5020 setpgrp () {return 0; }
5021 setpriority (x
,y
,z
) int x
,y
,z
; { return 0; }
5022 void unrequest_sigio (void) {}
5026 #ifdef POSIX_SIGNALS
5028 /* Augment DJGPP library POSIX signal functions. This is needed
5029 as of DJGPP v2.01, but might be in the library in later releases. */
5031 #include <libc/bss.h>
5033 /* A counter to know when to re-initialize the static sets. */
5034 static int sigprocmask_count
= -1;
5036 /* Which signals are currently blocked (initially none). */
5037 static sigset_t current_mask
;
5039 /* Which signals are pending (initially none). */
5040 static sigset_t pending_signals
;
5042 /* Previous handlers to restore when the blocked signals are unblocked. */
5043 typedef void (*sighandler_t
)(int);
5044 static sighandler_t prev_handlers
[320];
5046 /* A signal handler which just records that a signal occured
5047 (it will be raised later, if and when the signal is unblocked). */
5049 sig_suspender (signo
)
5052 sigaddset (&pending_signals
, signo
);
5056 sigprocmask (how
, new_set
, old_set
)
5058 const sigset_t
*new_set
;
5064 /* If called for the first time, initialize. */
5065 if (sigprocmask_count
!= __bss_count
)
5067 sigprocmask_count
= __bss_count
;
5068 sigemptyset (&pending_signals
);
5069 sigemptyset (¤t_mask
);
5070 for (signo
= 0; signo
< 320; signo
++)
5071 prev_handlers
[signo
] = SIG_ERR
;
5075 *old_set
= current_mask
;
5080 if (how
!= SIG_BLOCK
&& how
!= SIG_UNBLOCK
&& how
!= SIG_SETMASK
)
5086 sigemptyset (&new_mask
);
5088 /* DJGPP supports upto 320 signals. */
5089 for (signo
= 0; signo
< 320; signo
++)
5091 if (sigismember (¤t_mask
, signo
))
5092 sigaddset (&new_mask
, signo
);
5093 else if (sigismember (new_set
, signo
) && how
!= SIG_UNBLOCK
)
5095 sigaddset (&new_mask
, signo
);
5097 /* SIGKILL is silently ignored, as on other platforms. */
5098 if (signo
!= SIGKILL
&& prev_handlers
[signo
] == SIG_ERR
)
5099 prev_handlers
[signo
] = signal (signo
, sig_suspender
);
5101 if (( how
== SIG_UNBLOCK
5102 && sigismember (&new_mask
, signo
)
5103 && sigismember (new_set
, signo
))
5104 || (how
== SIG_SETMASK
5105 && sigismember (&new_mask
, signo
)
5106 && !sigismember (new_set
, signo
)))
5108 sigdelset (&new_mask
, signo
);
5109 if (prev_handlers
[signo
] != SIG_ERR
)
5111 signal (signo
, prev_handlers
[signo
]);
5112 prev_handlers
[signo
] = SIG_ERR
;
5114 if (sigismember (&pending_signals
, signo
))
5116 sigdelset (&pending_signals
, signo
);
5121 current_mask
= new_mask
;
5125 #else /* not POSIX_SIGNALS */
5127 sigsetmask (x
) int x
; { return 0; }
5128 sigblock (mask
) int mask
; { return 0; }
5130 #endif /* not POSIX_SIGNALS */
5131 #endif /* __DJGPP__ > 1 */
5134 #include "sysselect.h"
5136 #ifndef EMACS_TIME_ZERO_OR_NEG_P
5137 #define EMACS_TIME_ZERO_OR_NEG_P(time) \
5138 ((long)(time).tv_sec < 0 \
5139 || ((time).tv_sec == 0 \
5140 && (long)(time).tv_usec <= 0))
5143 /* This yields the rest of the current time slice to the task manager.
5144 It should be called by any code which knows that it has nothing
5145 useful to do except idle.
5147 I don't use __dpmi_yield here, since versions of library before 2.02
5148 called Int 2Fh/AX=1680h there in a way that would wedge the DOS box
5149 on some versions of Windows 9X. */
5152 dos_yield_time_slice (void)
5154 _go32_dpmi_registers r
;
5157 r
.x
.ss
= r
.x
.sp
= r
.x
.flags
= 0;
5158 _go32_dpmi_simulate_int (0x2f, &r
);
5163 /* Only event queue is checked. */
5164 /* We don't have to call timer_check here
5165 because wait_reading_process_input takes care of that. */
5167 sys_select (nfds
, rfds
, wfds
, efds
, timeout
)
5169 SELECT_TYPE
*rfds
, *wfds
, *efds
;
5170 EMACS_TIME
*timeout
;
5178 check_input
= FD_ISSET (0, rfds
);
5189 /* If we are looking only for the terminal, with no timeout,
5190 just read it and wait -- that's more efficient. */
5193 while (!detect_input_pending ())
5195 dos_yield_time_slice ();
5200 EMACS_TIME clnow
, cllast
, cldiff
;
5203 EMACS_SET_SECS_USECS (cllast
, t
.ti_sec
, t
.ti_hund
* 10000L);
5205 while (!check_input
|| !detect_input_pending ())
5208 EMACS_SET_SECS_USECS (clnow
, t
.ti_sec
, t
.ti_hund
* 10000L);
5209 EMACS_SUB_TIME (cldiff
, clnow
, cllast
);
5211 /* When seconds wrap around, we assume that no more than
5212 1 minute passed since last `gettime'. */
5213 if (EMACS_TIME_NEG_P (cldiff
))
5214 EMACS_SET_SECS (cldiff
, EMACS_SECS (cldiff
) + 60);
5215 EMACS_SUB_TIME (*timeout
, *timeout
, cldiff
);
5217 /* Stop when timeout value crosses zero. */
5218 if (EMACS_TIME_ZERO_OR_NEG_P (*timeout
))
5221 dos_yield_time_slice ();
5231 * Define overlaid functions:
5233 * chdir -> sys_chdir
5234 * tzset -> init_gettimeofday
5235 * abort -> dos_abort
5240 extern int chdir ();
5246 int len
= strlen (path
);
5247 char *tmp
= (char *)path
;
5249 if (*tmp
&& tmp
[1] == ':')
5251 if (getdisk () != tolower (tmp
[0]) - 'a')
5252 setdisk (tolower (tmp
[0]) - 'a');
5253 tmp
+= 2; /* strip drive: KFS 1995-07-06 */
5257 if (len
> 1 && (tmp
[len
- 1] == '/'))
5259 char *tmp1
= (char *) alloca (len
+ 1);
5270 extern void tzset (void);
5273 init_gettimeofday ()
5279 ltm
= gtm
= time (NULL
);
5280 ltm
= mktime (lstm
= localtime (<m
));
5281 gtm
= mktime (gmtime (>m
));
5282 time_rec
.tm_hour
= 99; /* force gettimeofday to get date */
5283 time_rec
.tm_isdst
= lstm
->tm_isdst
;
5284 dos_timezone_offset
= time_rec
.tm_gmtoff
= (int)(gtm
- ltm
) / 60;
5291 dos_abort (file
, line
)
5295 char buffer1
[200], buffer2
[400];
5298 sprintf (buffer1
, "<EMACS FATAL ERROR IN %s LINE %d>", file
, line
);
5299 for (i
= j
= 0; buffer1
[i
]; i
++) {
5300 buffer2
[j
++] = buffer1
[i
];
5301 buffer2
[j
++] = 0x70;
5303 dosmemput (buffer2
, j
, (int)ScreenPrimary
);
5304 ScreenSetCursor (2, 0);
5312 ScreenSetCursor (10, 0);
5313 cputs ("\r\n\nEmacs aborted!\r\n");
5315 #if __DJGPP__ == 2 && __DJGPP_MINOR__ < 2
5316 if (screen_virtual_segment
)
5317 dosv_refresh_virtual_screen (2 * 10 * screen_size_X
, 4 * screen_size_X
);
5318 /* Generate traceback, so we could tell whodunit. */
5319 signal (SIGINT
, SIG_DFL
);
5320 __asm__
__volatile__ ("movb $0x1b,%al;call ___djgpp_hw_exception");
5321 #else /* __DJGPP_MINOR__ >= 2 */
5323 #endif /* __DJGPP_MINOR__ >= 2 */
5329 /* The following variables are required so that cus-start.el won't
5330 complain about unbound variables. */
5331 #ifndef subprocesses
5332 /* Nonzero means delete a process right away if it exits (process.c). */
5333 static int delete_exited_processes
;
5338 recent_doskeys
= Fmake_vector (make_number (NUM_RECENT_DOSKEYS
), Qnil
);
5339 staticpro (&recent_doskeys
);
5340 #ifndef HAVE_X_WINDOWS
5342 staticpro (&help_echo
);
5343 help_echo_object
= Qnil
;
5344 staticpro (&help_echo_object
);
5345 help_echo_window
= Qnil
;
5346 staticpro (&help_echo_window
);
5347 previous_help_echo
= Qnil
;
5348 staticpro (&previous_help_echo
);
5351 /* The following two are from xfns.c: */
5352 Qbar
= intern ("bar");
5354 Qcursor_type
= intern ("cursor-type");
5355 staticpro (&Qcursor_type
);
5356 Qreverse
= intern ("reverse");
5357 staticpro (&Qreverse
);
5359 DEFVAR_LISP ("dos-unsupported-char-glyph", &Vdos_unsupported_char_glyph
,
5360 doc
: /* *Glyph to display instead of chars not supported by current codepage.
5362 This variable is used only by MSDOS terminals. */);
5363 Vdos_unsupported_char_glyph
= '\177';
5365 DEFVAR_BOOL ("x-autoselect-window", &x_autoselect_window_p
,
5366 doc
: /* *Non-nil means autoselect window with mouse pointer. */);
5367 x_autoselect_window_p
= 0;
5369 #ifndef subprocesses
5370 DEFVAR_BOOL ("delete-exited-processes", &delete_exited_processes
,
5371 doc
: /* *Non-nil means delete processes immediately when they exit.
5372 nil means don't delete them until `list-processes' is run. */);
5373 delete_exited_processes
= 0;
5376 defsubr (&Srecent_doskeys
);
5377 defsubr (&Smsdos_long_file_names
);
5378 defsubr (&Smsdos_downcase_filename
);
5379 defsubr (&Smsdos_remember_default_colors
);
5380 defsubr (&Smsdos_set_mouse_buttons
);