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emacs/src/msdos.c
Richard M. Stallman bba35edee6 (sys_select): Check timer once even if input is pending.
1995-11-27 20:05:44 +00:00

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/* MS-DOS specific C utilities.
Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Contributed by Morten Welinder */
/* New display, keyboard, and mouse control by Kim F. Storm */
/* Note: some of the stuff here was taken from end of sysdep.c in demacs. */
#include <config.h>
#ifdef MSDOS
#include "lisp.h"
#include <stdio.h>
#include <stdlib.h>
#include <sys/param.h>
#include <sys/time.h>
#include <dos.h>
#include "dosfns.h"
#include "msdos.h"
#include "systime.h"
#include "termhooks.h"
#include "dispextern.h"
#include "termopts.h"
#include "frame.h"
#include "window.h"
#include <go32.h>
#include <pc.h>
#include <ctype.h>
/* #include <process.h> */
/* Damn that local process.h! Instead we can define P_WAIT ourselves. */
#define P_WAIT 1
static unsigned long
event_timestamp ()
{
struct time t;
unsigned long s;
gettime (&t);
s = t.ti_min;
s *= 60;
s += t.ti_sec;
s *= 1000;
s += t.ti_hund * 10;
return s;
}
/* ------------------------ Mouse control ---------------------------
*
* Coordinates are in screen positions and zero based.
* Mouse buttons are numbered from left to right and also zero based.
*/
int have_mouse; /* 0: no, 1: enabled, -1: disabled */
static int mouse_visible;
static int mouse_last_x;
static int mouse_last_y;
static int mouse_button_translate[NUM_MOUSE_BUTTONS];
static int mouse_button_count;
void
mouse_on ()
{
union REGS regs;
if (have_mouse > 0 && !mouse_visible)
{
if (termscript)
fprintf (termscript, "<M_ON>");
regs.x.ax = 0x0001;
int86 (0x33, &regs, &regs);
mouse_visible = 1;
}
}
void
mouse_off ()
{
union REGS regs;
if (have_mouse > 0 && mouse_visible)
{
if (termscript)
fprintf (termscript, "<M_OFF>");
regs.x.ax = 0x0002;
int86 (0x33, &regs, &regs);
mouse_visible = 0;
}
}
void
mouse_moveto (x, y)
int x, y;
{
union REGS regs;
if (termscript)
fprintf (termscript, "<M_XY=%dx%d>", x, y);
regs.x.ax = 0x0004;
mouse_last_x = regs.x.cx = x * 8;
mouse_last_y = regs.x.dx = y * 8;
int86 (0x33, &regs, &regs);
}
static int
mouse_pressed (b, xp, yp)
int b, *xp, *yp;
{
union REGS regs;
if (b >= mouse_button_count)
return 0;
regs.x.ax = 0x0005;
regs.x.bx = mouse_button_translate[b];
int86 (0x33, &regs, &regs);
if (regs.x.bx)
*xp = regs.x.cx / 8, *yp = regs.x.dx / 8;
return (regs.x.bx != 0);
}
static int
mouse_released (b, xp, yp)
int b, *xp, *yp;
{
union REGS regs;
if (b >= mouse_button_count)
return 0;
regs.x.ax = 0x0006;
regs.x.bx = mouse_button_translate[b];
int86 (0x33, &regs, &regs);
if (regs.x.bx)
*xp = regs.x.cx / 8, *yp = regs.x.dx / 8;
return (regs.x.bx != 0);
}
static void
mouse_get_xy (int *x, int *y)
{
union REGS regs;
regs.x.ax = 0x0003;
int86 (0x33, &regs, &regs);
*x = regs.x.cx / 8;
*y = regs.x.dx / 8;
}
void
mouse_get_pos (f, insist, bar_window, part, x, y, time)
FRAME_PTR *f;
int insist;
Lisp_Object *bar_window, *x, *y;
enum scroll_bar_part *part;
unsigned long *time;
{
int ix, iy;
union REGS regs;
regs.x.ax = 0x0003;
int86 (0x33, &regs, &regs);
*f = selected_frame;
*bar_window = Qnil;
mouse_get_xy (&ix, &iy);
selected_frame->mouse_moved = 0;
*x = make_number (ix);
*y = make_number (iy);
*time = event_timestamp ();
}
static void
mouse_check_moved ()
{
int x, y;
mouse_get_xy (&x, &y);
selected_frame->mouse_moved |= (x != mouse_last_x || y != mouse_last_y);
mouse_last_x = x;
mouse_last_y = y;
}
void
mouse_init ()
{
union REGS regs;
if (termscript)
fprintf (termscript, "<M_INIT>");
regs.x.ax = 0x0021;
int86 (0x33, &regs, &regs);
regs.x.ax = 0x0007;
regs.x.cx = 0;
regs.x.dx = 8 * (ScreenCols () - 1);
int86 (0x33, &regs, &regs);
regs.x.ax = 0x0008;
regs.x.cx = 0;
regs.x.dx = 8 * (ScreenRows () - 1);
int86 (0x33, &regs, &regs);
mouse_moveto (0, 0);
mouse_visible = 0;
}
/* ------------------------- Screen control ----------------------
*
*/
static int internal_terminal = 0;
#ifndef HAVE_X_WINDOWS
extern unsigned char ScreenAttrib;
static int screen_face;
static int highlight;
static int screen_size_X;
static int screen_size_Y;
static int screen_size;
static int current_pos_X;
static int current_pos_Y;
static int new_pos_X;
static int new_pos_Y;
static void *startup_screen_buffer;
static int startup_screen_size_X;
static int startup_screen_size_Y;
static int startup_pos_X;
static int startup_pos_Y;
static int term_setup_done;
/* Similar to the_only_frame. */
struct x_output the_only_x_display;
/* This is never dereferenced. */
Display *x_current_display;
#define SCREEN_SET_CURSOR() \
if (current_pos_X != new_pos_X || current_pos_Y != new_pos_Y) \
ScreenSetCursor (current_pos_Y = new_pos_Y, current_pos_X = new_pos_X)
static
dos_direct_output (y, x, buf, len)
int y;
int x;
char *buf;
int len;
{
int t = (int) ScreenPrimary + 2 * (x + y * screen_size_X);
while (--len >= 0) {
dosmemput (buf++, 1, t);
t += 2;
}
}
#endif
/* Flash the screen as a substitute for BEEPs. */
#if (__DJGPP__ < 2)
static void
do_visible_bell (xorattr)
unsigned char xorattr;
{
asm volatile
(" movb $1,%%dl
visible_bell_0:
movl _ScreenPrimary,%%eax
call dosmemsetup
movl %%eax,%%ebx
movl %1,%%ecx
movb %0,%%al
incl %%ebx
visible_bell_1:
xorb %%al,%%gs:(%%ebx)
addl $2,%%ebx
decl %%ecx
jne visible_bell_1
decb %%dl
jne visible_bell_3
visible_bell_2:
movzwl %%ax,%%eax
movzwl %%ax,%%eax
movzwl %%ax,%%eax
movzwl %%ax,%%eax
decw %%cx
jne visible_bell_2
jmp visible_bell_0
visible_bell_3:"
: /* no output */
: "m" (xorattr), "g" (screen_size)
: "%eax", "%ebx", /* "%gs",*/ "%ecx", "%edx");
}
static void
ScreenVisualBell (void)
{
/* This creates an xor-mask that will swap the default fore- and
background colors. */
do_visible_bell (((the_only_x_display.foreground_pixel
^ the_only_x_display.background_pixel)
* 0x11) & 0x7f);
}
#endif
#ifndef HAVE_X_WINDOWS
/*
* If we write a character in the position where the mouse is,
* the mouse cursor may need to be refreshed.
*/
static void
mouse_off_maybe ()
{
int x, y;
if (!mouse_visible)
return;
mouse_get_xy (&x, &y);
if (y != new_pos_Y || x < new_pos_X)
return;
mouse_off ();
}
static
IT_ring_bell ()
{
if (visible_bell)
{
mouse_off ();
ScreenVisualBell ();
}
else
{
union REGS inregs, outregs;
inregs.h.ah = 2;
inregs.h.dl = 7;
intdos (&inregs, &outregs);
}
}
static void
IT_set_face (int face)
{
struct face *fp;
extern struct face *intern_face (/* FRAME_PTR, struct face * */);
if (face == 1 || (face == 0 && highlight))
fp = FRAME_MODE_LINE_FACE (foo);
else if (face <= 0 || face >= FRAME_N_COMPUTED_FACES (foo))
fp = FRAME_DEFAULT_FACE (foo);
else
fp = intern_face (selected_frame, FRAME_COMPUTED_FACES (foo)[face]);
if (termscript)
fprintf (termscript, "<FACE:%d:%d>", FACE_FOREGROUND (fp), FACE_BACKGROUND (fp));
screen_face = face;
ScreenAttrib = (FACE_BACKGROUND (fp) << 4) | FACE_FOREGROUND (fp);
}
static
IT_write_glyphs (GLYPH *str, int len)
{
int newface;
int ch, l = len;
unsigned char *buf, *bp;
if (len == 0) return;
buf = bp = alloca (len * 2);
while (--l >= 0)
{
newface = FAST_GLYPH_FACE (*str);
if (newface != screen_face)
IT_set_face (newface);
ch = FAST_GLYPH_CHAR (*str);
*bp++ = (unsigned char)ch;
*bp++ = ScreenAttrib;
if (termscript)
fputc (ch, termscript);
str++;
}
mouse_off_maybe ();
dosmemput (buf, 2 * len,
(int)ScreenPrimary + 2 * (new_pos_X + screen_size_X * new_pos_Y));
new_pos_X += len;
}
static
IT_clear_end_of_line (first_unused)
{
char *spaces, *sp;
int i, j;
IT_set_face (0);
if (termscript)
fprintf (termscript, "<CLR:EOL>");
i = (j = screen_size_X - new_pos_X) * 2;
spaces = sp = alloca (i);
while (--j >= 0)
{
*sp++ = ' ';
*sp++ = ScreenAttrib;
}
mouse_off_maybe ();
dosmemput (spaces, i,
(int)ScreenPrimary + 2 * (new_pos_X + screen_size_X * new_pos_Y));
}
static
IT_clear_screen (void)
{
if (termscript)
fprintf (termscript, "<CLR:SCR>");
IT_set_face (0);
mouse_off ();
ScreenClear ();
new_pos_X = new_pos_Y = 0;
}
static
IT_clear_to_end (void)
{
if (termscript)
fprintf (termscript, "<CLR:EOS>");
while (new_pos_Y < screen_size_Y) {
new_pos_X = 0;
IT_clear_end_of_line (0);
new_pos_Y++;
}
}
static
IT_cursor_to (int y, int x)
{
if (termscript)
fprintf (termscript, "\n<XY=%dx%d>", x, y);
new_pos_X = x;
new_pos_Y = y;
}
static
IT_reassert_line_highlight (new, vpos)
int new, vpos;
{
highlight = new;
IT_set_face (0); /* To possibly clear the highlighting. */
}
static
IT_change_line_highlight (new_highlight, vpos, first_unused_hpos)
{
highlight = new_highlight;
IT_set_face (0); /* To possibly clear the highlighting. */
IT_cursor_to (vpos, 0);
IT_clear_end_of_line (first_unused_hpos);
}
static
IT_update_begin ()
{
highlight = 0;
IT_set_face (0); /* To possibly clear the highlighting. */
screen_face = -1;
}
static
IT_update_end ()
{
}
/* This was more or less copied from xterm.c */
static void
IT_set_menu_bar_lines (window, n)
Lisp_Object window;
int n;
{
struct window *w = XWINDOW (window);
XSETFASTINT (w->last_modified, 0);
XSETFASTINT (w->top, XFASTINT (w->top) + n);
XSETFASTINT (w->height, XFASTINT (w->height) - n);
/* Handle just the top child in a vertical split. */
if (!NILP (w->vchild))
IT_set_menu_bar_lines (w->vchild, n);
/* Adjust all children in a horizontal split. */
for (window = w->hchild; !NILP (window); window = w->next)
{
w = XWINDOW (window);
IT_set_menu_bar_lines (window, n);
}
}
/*
* IT_set_terminal_modes is called when emacs is started,
* resumed, and whenever the screen is redrawn!
*/
static
IT_set_terminal_modes (void)
{
char *colors;
FRAME_PTR f;
struct face *fp;
if (termscript)
fprintf (termscript, "\n<SET_TERM>");
highlight = 0;
screen_size_X = ScreenCols ();
screen_size_Y = ScreenRows ();
screen_size = screen_size_X * screen_size_Y;
new_pos_X = new_pos_Y = 0;
current_pos_X = current_pos_Y = -1;
if (term_setup_done)
return;
term_setup_done = 1;
startup_screen_size_X = screen_size_X;
startup_screen_size_Y = screen_size_Y;
ScreenGetCursor (&startup_pos_Y, &startup_pos_X);
ScreenRetrieve (startup_screen_buffer = xmalloc (screen_size * 2));
if (termscript)
fprintf (termscript, "<SCREEN SAVED>\n");
}
/*
* IT_reset_terminal_modes is called when emacs is
* suspended or killed.
*/
static
IT_reset_terminal_modes (void)
{
if (termscript)
fprintf (termscript, "\n<RESET_TERM>");
highlight = 0;
if (!term_setup_done)
return;
ScreenUpdate (startup_screen_buffer);
ScreenSetCursor (startup_pos_Y, startup_pos_X);
xfree (startup_screen_buffer);
if (termscript)
fprintf (termscript, "<SCREEN RESTORED>\n");
term_setup_done = 0;
}
static
IT_set_terminal_window (void)
{
}
void
IT_set_frame_parameters (frame, alist)
FRAME_PTR frame;
Lisp_Object alist;
{
Lisp_Object tail;
int redraw;
extern unsigned long load_color ();
FRAME_PTR f = (FRAME_PTR) &the_only_frame;
redraw = 0;
for (tail = alist; CONSP (tail); tail = Fcdr (tail))
{
Lisp_Object elt, prop, val;
elt = Fcar (tail);
prop = Fcar (elt);
val = Fcdr (elt);
CHECK_SYMBOL (prop, 1);
if (EQ (prop, intern ("foreground-color")))
{
unsigned long new_color = load_color (f, val);
if (new_color != ~0)
{
FRAME_FOREGROUND_PIXEL (f) = new_color;
redraw = 1;
}
}
else if (EQ (prop, intern ("background-color")))
{
unsigned long new_color = load_color (f, val);
if (new_color != ~0)
{
FRAME_BACKGROUND_PIXEL (f) = new_color & ~8;
redraw = 1;
}
}
else if (EQ (prop, intern ("menu-bar-lines")))
{
int new;
int old = FRAME_MENU_BAR_LINES (the_only_frame);
if (INTEGERP (val))
new = XINT (val);
else
new = 0;
FRAME_MENU_BAR_LINES (f) = new;
IT_set_menu_bar_lines (the_only_frame.root_window, new - old);
}
}
if (redraw)
{
recompute_basic_faces (f);
Fredraw_frame (Fselected_frame ());
}
}
#endif /* !HAVE_X_WINDOWS */
/* Do we need the internal terminal? */
void
internal_terminal_init ()
{
char *term = getenv ("TERM");
char *colors;
#ifdef HAVE_X_WINDOWS
if (!inhibit_window_system)
return;
#endif
internal_terminal
= (!noninteractive) && term && !strcmp (term, "internal");
if (getenv ("EMACSTEST"))
termscript = fopen (getenv ("EMACSTEST"), "wt");
#ifndef HAVE_X_WINDOWS
if (!internal_terminal || inhibit_window_system)
{
the_only_frame.output_method = output_termcap;
return;
}
Vwindow_system = intern ("pc");
Vwindow_system_version = make_number (1);
bzero (&the_only_x_display, sizeof the_only_x_display);
the_only_x_display.background_pixel = 7; /* White */
the_only_x_display.foreground_pixel = 0; /* Black */
colors = getenv ("EMACSCOLORS");
if (colors && strlen (colors) >= 2)
{
the_only_x_display.foreground_pixel = colors[0] & 0x07;
the_only_x_display.background_pixel = colors[1] & 0x07;
}
the_only_x_display.line_height = 1;
the_only_frame.output_data.x = &the_only_x_display;
the_only_frame.output_method = output_msdos_raw;
the_only_x_display.font = (XFontStruct *)1; /* must *not* be zero */
init_frame_faces ((FRAME_PTR) &the_only_frame);
ring_bell_hook = IT_ring_bell;
write_glyphs_hook = IT_write_glyphs;
cursor_to_hook = raw_cursor_to_hook = IT_cursor_to;
clear_to_end_hook = IT_clear_to_end;
clear_end_of_line_hook = IT_clear_end_of_line;
clear_frame_hook = IT_clear_screen;
change_line_highlight_hook = IT_change_line_highlight;
update_begin_hook = IT_update_begin;
update_end_hook = IT_update_end;
reassert_line_highlight_hook = IT_reassert_line_highlight;
/* These hooks are called by term.c without being checked. */
set_terminal_modes_hook = IT_set_terminal_modes;
reset_terminal_modes_hook = IT_reset_terminal_modes;
set_terminal_window_hook = IT_set_terminal_window;
#endif
}
dos_get_saved_screen (screen, rows, cols)
char **screen;
int *rows;
int *cols;
{
#ifndef HAVE_X_WINDOWS
*screen = startup_screen_buffer;
*cols = startup_screen_size_X;
*rows = startup_screen_size_Y;
return 1;
#else
return 0;
#endif
}
/* ----------------------- Keyboard control ----------------------
*
* Keymaps reflect the following keyboard layout:
*
* 0 1 2 3 4 5 6 7 8 9 10 11 12 BS
* TAB 15 16 17 18 19 20 21 22 23 24 25 26 (41)
* CLOK 30 31 32 33 34 35 36 37 38 39 40 (41) RET
* SH () 45 46 47 48 49 50 51 52 53 54 SHIFT
* SPACE
*/
static int extended_kbd; /* 101 (102) keyboard present. */
struct dos_keyboard_map
{
char *unshifted;
char *shifted;
char *alt_gr;
};
static struct dos_keyboard_map us_keyboard = {
/* 0 1 2 3 4 5 */
/* 01234567890123456789012345678901234567890 12345678901234 */
"`1234567890-= qwertyuiop[] asdfghjkl;'\\ zxcvbnm,./ ",
/* 0123456789012345678901234567890123456789 012345678901234 */
"~!@#$%^&*()_+ QWERTYUIOP{} ASDFGHJKL:\"| ZXCVBNM<>? ",
0 /* no Alt-Gr key */
};
static struct dos_keyboard_map fr_keyboard = {
/* 0 1 2 3 4 5 */
/* 012 3456789012345678901234567890123456789012345678901234 */
"<EFBFBD>&<26>\",(-<2D>_<EFBFBD><5F>)= azertyuiop^$ qsdfghjklm<6C>* wxcvbnm;:! ",
/* 0123456789012345678901234567890123456789012345678901234 */
" 1234567890<39>+ AZERTYUIOP<4F><50> QSDFGHJKLM%<25> WXCVBN?./<2F> ",
/* 01234567 89012345678901234567890123456789012345678901234 */
" ~#{[|`\\^@]} <20> "
};
static struct dos_keyboard_map dk_keyboard = {
/* 0 1 2 3 4 5 */
/* 0123456789012345678901234567890123456789012345678901234 */
"<EFBFBD>1234567890+| qwertyuiop<6F>~ asdfghjkl<6B><6C>' zxcvbnm,.- ",
/* 01 23456789012345678901234567890123456789012345678901234 */
"<EFBFBD>!\"#$%&/()=?` QWERTYUIOP<4F>^ ASDFGHJKL<4B><4C>* ZXCVBNM;:_ ",
/* 0123456789012345678901234567890123456789012345678901234 */
" @<40>$ {[]} | "
};
static struct keyboard_layout_list
{
int country_code;
struct dos_keyboard_map *keyboard_map;
} keyboard_layout_list[] =
{
1, &us_keyboard,
33, &fr_keyboard,
45, &dk_keyboard
};
static struct dos_keyboard_map *keyboard;
static int keyboard_map_all;
int
dos_set_keyboard (code, always)
int code;
int always;
{
int i;
/* Initialize to US settings, for countries that don't have their own. */
keyboard = keyboard_layout_list[0].keyboard_map;
keyboard_map_all = always;
dos_keyboard_layout = 1;
for (i = 0; i < (sizeof (keyboard_layout_list)/sizeof (struct keyboard_layout_list)); i++)
if (code == keyboard_layout_list[i].country_code)
{
keyboard = keyboard_layout_list[i].keyboard_map;
keyboard_map_all = always;
dos_keyboard_layout = code;
return 1;
}
return 0;
}
#define Ignore 0x0000
#define Normal 0x0000 /* normal key - alt changes scan-code */
#define FctKey 0x1000 /* func key if c == 0, else c */
#define Special 0x2000 /* func key even if c != 0 */
#define ModFct 0x3000 /* special if mod-keys, else 'c' */
#define Map 0x4000 /* alt scan-code, map to unshift/shift key */
#define KeyPad 0x5000 /* map to insert/kp-0 depending on c == 0xe0 */
#define Grey 0x6000 /* Grey keypad key */
#define Alt 0x0100 /* alt scan-code */
#define Ctrl 0x0200 /* ctrl scan-code */
#define Shift 0x0400 /* shift scan-code */
static struct
{
unsigned char char_code; /* normal code */
unsigned char meta_code; /* M- code */
unsigned char keypad_code; /* keypad code */
unsigned char editkey_code; /* edit key */
} keypad_translate_map[] = {
'0', '0', 0xb0, /* kp-0 */ 0x63, /* insert */
'1', '1', 0xb1, /* kp-1 */ 0x57, /* end */
'2', '2', 0xb2, /* kp-2 */ 0x54, /* down */
'3', '3', 0xb3, /* kp-3 */ 0x56, /* next */
'4', '4', 0xb4, /* kp-4 */ 0x51, /* left */
'5', '5', 0xb5, /* kp-5 */ 0xb5, /* kp-5 */
'6', '6', 0xb6, /* kp-6 */ 0x53, /* right */
'7', '7', 0xb7, /* kp-7 */ 0x50, /* home */
'8', '8', 0xb8, /* kp-8 */ 0x52, /* up */
'9', '9', 0xb9, /* kp-9 */ 0x55, /* prior */
'.', '-', 0xae, /* kp-decimal */ 0xff /* delete */
};
static struct
{
unsigned char char_code; /* normal code */
unsigned char keypad_code; /* keypad code */
} grey_key_translate_map[] = {
'/', 0xaf, /* kp-decimal */
'*', 0xaa, /* kp-multiply */
'-', 0xad, /* kp-subtract */
'+', 0xab, /* kp-add */
'\r', 0x8d /* kp-enter */
};
static unsigned short
ibmpc_translate_map[] =
{
/* --------------- 00 to 0f --------------- */
Normal | 0xff, /* Ctrl Break + Alt-NNN */
Alt | ModFct | 0x1b, /* Escape */
Normal | 1, /* '1' */
Normal | 2, /* '2' */
Normal | 3, /* '3' */
Normal | 4, /* '4' */
Normal | 5, /* '5' */
Normal | 6, /* '6' */
Normal | 7, /* '7' */
Normal | 8, /* '8' */
Normal | 9, /* '9' */
Normal | 10, /* '0' */
Normal | 11, /* '-' */
Normal | 12, /* '=' */
Special | 0x08, /* Backspace */
ModFct | 0x74, /* Tab/Backtab */
/* --------------- 10 to 1f --------------- */
Map | 15, /* 'q' */
Map | 16, /* 'w' */
Map | 17, /* 'e' */
Map | 18, /* 'r' */
Map | 19, /* 't' */
Map | 20, /* 'y' */
Map | 21, /* 'u' */
Map | 22, /* 'i' */
Map | 23, /* 'o' */
Map | 24, /* 'p' */
Map | 25, /* '[' */
Map | 26, /* ']' */
ModFct | 0x0d, /* Return */
Ignore, /* Ctrl */
Map | 30, /* 'a' */
Map | 31, /* 's' */
/* --------------- 20 to 2f --------------- */
Map | 32, /* 'd' */
Map | 33, /* 'f' */
Map | 34, /* 'g' */
Map | 35, /* 'h' */
Map | 36, /* 'j' */
Map | 37, /* 'k' */
Map | 38, /* 'l' */
Map | 39, /* ';' */
Map | 40, /* '\'' */
Map | 0, /* '`' */
Ignore, /* Left shift */
Map | 41, /* '\\' */
Map | 45, /* 'z' */
Map | 46, /* 'x' */
Map | 47, /* 'c' */
Map | 48, /* 'v' */
/* --------------- 30 to 3f --------------- */
Map | 49, /* 'b' */
Map | 50, /* 'n' */
Map | 51, /* 'm' */
Map | 52, /* ',' */
Map | 53, /* '.' */
Map | 54, /* '/' */
Ignore, /* Right shift */
Grey | 1, /* Grey * */
Ignore, /* Alt */
Normal | ' ', /* ' ' */
Ignore, /* Caps Lock */
FctKey | 0xbe, /* F1 */
FctKey | 0xbf, /* F2 */
FctKey | 0xc0, /* F3 */
FctKey | 0xc1, /* F4 */
FctKey | 0xc2, /* F5 */
/* --------------- 40 to 4f --------------- */
FctKey | 0xc3, /* F6 */
FctKey | 0xc4, /* F7 */
FctKey | 0xc5, /* F8 */
FctKey | 0xc6, /* F9 */
FctKey | 0xc7, /* F10 */
Ignore, /* Num Lock */
Ignore, /* Scroll Lock */
KeyPad | 7, /* Home */
KeyPad | 8, /* Up */
KeyPad | 9, /* Page Up */
Grey | 2, /* Grey - */
KeyPad | 4, /* Left */
KeyPad | 5, /* Keypad 5 */
KeyPad | 6, /* Right */
Grey | 3, /* Grey + */
KeyPad | 1, /* End */
/* --------------- 50 to 5f --------------- */
KeyPad | 2, /* Down */
KeyPad | 3, /* Page Down */
KeyPad | 0, /* Insert */
KeyPad | 10, /* Delete */
Shift | FctKey | 0xbe, /* (Shift) F1 */
Shift | FctKey | 0xbf, /* (Shift) F2 */
Shift | FctKey | 0xc0, /* (Shift) F3 */
Shift | FctKey | 0xc1, /* (Shift) F4 */
Shift | FctKey | 0xc2, /* (Shift) F5 */
Shift | FctKey | 0xc3, /* (Shift) F6 */
Shift | FctKey | 0xc4, /* (Shift) F7 */
Shift | FctKey | 0xc5, /* (Shift) F8 */
Shift | FctKey | 0xc6, /* (Shift) F9 */
Shift | FctKey | 0xc7, /* (Shift) F10 */
Ctrl | FctKey | 0xbe, /* (Ctrl) F1 */
Ctrl | FctKey | 0xbf, /* (Ctrl) F2 */
/* --------------- 60 to 6f --------------- */
Ctrl | FctKey | 0xc0, /* (Ctrl) F3 */
Ctrl | FctKey | 0xc1, /* (Ctrl) F4 */
Ctrl | FctKey | 0xc2, /* (Ctrl) F5 */
Ctrl | FctKey | 0xc3, /* (Ctrl) F6 */
Ctrl | FctKey | 0xc4, /* (Ctrl) F7 */
Ctrl | FctKey | 0xc5, /* (Ctrl) F8 */
Ctrl | FctKey | 0xc6, /* (Ctrl) F9 */
Ctrl | FctKey | 0xc7, /* (Ctrl) F10 */
Alt | FctKey | 0xbe, /* (Alt) F1 */
Alt | FctKey | 0xbf, /* (Alt) F2 */
Alt | FctKey | 0xc0, /* (Alt) F3 */
Alt | FctKey | 0xc1, /* (Alt) F4 */
Alt | FctKey | 0xc2, /* (Alt) F5 */
Alt | FctKey | 0xc3, /* (Alt) F6 */
Alt | FctKey | 0xc4, /* (Alt) F7 */
Alt | FctKey | 0xc5, /* (Alt) F8 */
/* --------------- 70 to 7f --------------- */
Alt | FctKey | 0xc6, /* (Alt) F9 */
Alt | FctKey | 0xc7, /* (Alt) F10 */
Ctrl | FctKey | 0x6d, /* (Ctrl) Sys Rq */
Ctrl | KeyPad | 4, /* (Ctrl) Left */
Ctrl | KeyPad | 6, /* (Ctrl) Right */
Ctrl | KeyPad | 1, /* (Ctrl) End */
Ctrl | KeyPad | 3, /* (Ctrl) Page Down */
Ctrl | KeyPad | 7, /* (Ctrl) Home */
Alt | Map | 1, /* '1' */
Alt | Map | 2, /* '2' */
Alt | Map | 3, /* '3' */
Alt | Map | 4, /* '4' */
Alt | Map | 5, /* '5' */
Alt | Map | 6, /* '6' */
Alt | Map | 7, /* '7' */
Alt | Map | 8, /* '8' */
/* --------------- 80 to 8f --------------- */
Alt | Map | 9, /* '9' */
Alt | Map | 10, /* '0' */
Alt | Map | 11, /* '-' */
Alt | Map | 12, /* '=' */
Ctrl | KeyPad | 9, /* (Ctrl) Page Up */
FctKey | 0xc8, /* F11 */
FctKey | 0xc9, /* F12 */
Shift | FctKey | 0xc8, /* (Shift) F11 */
Shift | FctKey | 0xc9, /* (Shift) F12 */
Ctrl | FctKey | 0xc8, /* (Ctrl) F11 */
Ctrl | FctKey | 0xc9, /* (Ctrl) F12 */
Alt | FctKey | 0xc8, /* (Alt) F11 */
Alt | FctKey | 0xc9, /* (Alt) F12 */
Ctrl | KeyPad | 8, /* (Ctrl) Up */
Ctrl | Grey | 2, /* (Ctrl) Grey - */
Ctrl | KeyPad | 5, /* (Ctrl) Keypad 5 */
/* --------------- 90 to 9f --------------- */
Ctrl | Grey | 3, /* (Ctrl) Grey + */
Ctrl | KeyPad | 2, /* (Ctrl) Down */
Ctrl | KeyPad | 0, /* (Ctrl) Insert */
Ctrl | KeyPad | 10, /* (Ctrl) Delete */
Ctrl | FctKey | 0x09, /* (Ctrl) Tab */
Ctrl | Grey | 0, /* (Ctrl) Grey / */
Ctrl | Grey | 1, /* (Ctrl) Grey * */
Alt | FctKey | 0x50, /* (Alt) Home */
Alt | FctKey | 0x52, /* (Alt) Up */
Alt | FctKey | 0x55, /* (Alt) Page Up */
Ignore, /* NO KEY */
Alt | FctKey | 0x51, /* (Alt) Left */
Ignore, /* NO KEY */
Alt | FctKey | 0x53, /* (Alt) Right */
Ignore, /* NO KEY */
Alt | FctKey | 0x57, /* (Alt) End */
/* --------------- a0 to af --------------- */
Alt | KeyPad | 2, /* (Alt) Down */
Alt | KeyPad | 3, /* (Alt) Page Down */
Alt | KeyPad | 0, /* (Alt) Insert */
Alt | KeyPad | 10, /* (Alt) Delete */
Alt | Grey | 0, /* (Alt) Grey / */
Alt | FctKey | 0x09, /* (Alt) Tab */
Alt | Grey | 4 /* (Alt) Keypad Enter */
};
/* These bit-positions corresponds to values returned by BIOS */
#define SHIFT_P 0x0003 /* two bits! */
#define CTRL_P 0x0004
#define ALT_P 0x0008
#define SCRLOCK_P 0x0010
#define NUMLOCK_P 0x0020
#define CAPSLOCK_P 0x0040
#define ALT_GR_P 0x0800
#define SUPER_P 0x4000 /* pseudo */
#define HYPER_P 0x8000 /* pseudo */
static int
dos_get_modifiers (keymask)
int *keymask;
{
union REGS regs;
int mask;
int modifiers = 0;
/* Calculate modifier bits */
regs.h.ah = extended_kbd ? 0x12 : 0x02;
int86 (0x16, &regs, &regs);
if (!extended_kbd)
{
mask = regs.h.al & (SHIFT_P | CTRL_P | ALT_P |
SCRLOCK_P | NUMLOCK_P | CAPSLOCK_P);
}
else
{
mask = regs.h.al & (SHIFT_P |
SCRLOCK_P | NUMLOCK_P | CAPSLOCK_P);
/* Do not break international keyboard support. */
/* When Keyb.Com is loaded, the right Alt key is */
/* used for accessing characters like { and } */
if (regs.h.ah & 2) /* Left ALT pressed ? */
mask |= ALT_P;
if ((regs.h.ah & 8) != 0) /* Right ALT pressed ? */
{
mask |= ALT_GR_P;
if (dos_hyper_key == 1)
{
mask |= HYPER_P;
modifiers |= hyper_modifier;
}
else if (dos_super_key == 1)
{
mask |= SUPER_P;
modifiers |= super_modifier;
}
}
if (regs.h.ah & 1) /* Left CTRL pressed
mask |= CTRL_P;
if (regs.h.ah & 4) /* Right CTRL pressed ? */
{
if (dos_hyper_key == 2)
{
mask |= HYPER_P;
modifiers |= hyper_modifier;
}
else if (dos_super_key == 2)
{
mask |= SUPER_P;
modifiers |= super_modifier;
}
else
mask |= CTRL_P;
}
}
if (mask & SHIFT_P)
modifiers |= shift_modifier;
if (mask & CTRL_P)
modifiers |= ctrl_modifier;
if (mask & ALT_P)
modifiers |= meta_modifier;
if (keymask)
*keymask = mask;
return modifiers;
}
#define NUM_RECENT_DOSKEYS (100)
int recent_doskeys_index; /* Index for storing next element into recent_doskeys */
int total_doskeys; /* Total number of elements stored into recent_doskeys */
Lisp_Object recent_doskeys; /* A vector, holding the last 100 keystrokes */
DEFUN ("recent-doskeys", Frecent_doskeys, Srecent_doskeys, 0, 0, 0,
"Return vector of last 100 keyboard input values seen in dos_rawgetc.\n\
Each input key receives two values in this vector: first the ASCII code,\n\
and then the scan code.")
()
{
Lisp_Object *keys = XVECTOR (recent_doskeys)->contents;
Lisp_Object val;
if (total_doskeys < NUM_RECENT_DOSKEYS)
return Fvector (total_doskeys, keys);
else
{
val = Fvector (NUM_RECENT_DOSKEYS, keys);
bcopy (keys + recent_doskeys_index,
XVECTOR (val)->contents,
(NUM_RECENT_DOSKEYS - recent_doskeys_index) * sizeof (Lisp_Object));
bcopy (keys,
XVECTOR (val)->contents + NUM_RECENT_DOSKEYS - recent_doskeys_index,
recent_doskeys_index * sizeof (Lisp_Object));
return val;
}
}
/* Get a char from keyboard. Function keys are put into the event queue. */
static int
dos_rawgetc ()
{
struct input_event event;
union REGS regs;
#ifndef HAVE_X_WINDOWS
SCREEN_SET_CURSOR ();
if (!mouse_visible) mouse_on ();
#endif
/* The following condition is equivalent to `kbhit ()', except that
it uses the bios to do its job. This pleases DESQview/X. */
while ((regs.h.ah = extended_kbd ? 0x11 : 0x01),
int86 (0x16, &regs, &regs),
(regs.x.flags & 0x40) == 0)
{
union REGS regs;
register unsigned char c;
int sc, code, mask, kp_mode;
int modifiers;
regs.h.ah = extended_kbd ? 0x10 : 0x00;
int86 (0x16, &regs, &regs);
c = regs.h.al;
sc = regs.h.ah;
total_doskeys += 2;
XVECTOR (recent_doskeys)->contents[recent_doskeys_index++]
= make_number (c);
if (recent_doskeys_index == NUM_RECENT_DOSKEYS)
recent_doskeys_index = 0;
XVECTOR (recent_doskeys)->contents[recent_doskeys_index++]
= make_number (sc);
if (recent_doskeys_index == NUM_RECENT_DOSKEYS)
recent_doskeys_index = 0;
modifiers = dos_get_modifiers (&mask);
#ifndef HAVE_X_WINDOWS
if (!NILP (Vdos_display_scancodes))
{
char buf[10];
sprintf (buf, "%02x:%02x*%04x",
(unsigned) (sc&0xff), (unsigned) c, mask);
dos_direct_output (screen_size_Y - 2, screen_size_X - 12, buf, 10);
}
#endif
if (sc == 0xe0)
{
switch (c)
{
case 10: /* Ctrl Grey Enter */
code = Ctrl | Grey | 4;
break;
case 13: /* Grey Enter */
code = Grey | 4;
break;
case '/': /* Grey / */
code = Grey | 0;
break;
default:
continue;
};
c = 0;
}
else
{
if (sc >= (sizeof (ibmpc_translate_map) / sizeof (short)))
continue;
if ((code = ibmpc_translate_map[sc]) == Ignore)
continue;
}
if (c == 0)
{
if (code & Alt)
modifiers |= meta_modifier;
if (code & Ctrl)
modifiers |= ctrl_modifier;
if (code & Shift)
modifiers |= shift_modifier;
}
switch (code & 0xf000)
{
case ModFct:
if (c && !(mask & (SHIFT_P | ALT_P | CTRL_P | HYPER_P | SUPER_P)))
return c;
c = 0; /* Special */
case FctKey:
if (c != 0)
return c;
case Special:
code |= 0xff00;
break;
case Normal:
if (sc == 0)
{
if (c == 0) /* ctrl-break */
continue;
return c; /* ALT-nnn */
}
if (!keyboard_map_all)
{
if (c != ' ')
return c;
code = c;
break;
}
case Map:
if (c && !(mask & ALT_P) && !((mask & SHIFT_P) && (mask & CTRL_P)))
if (!keyboard_map_all)
return c;
code &= 0xff;
if (mask & ALT_P && code <= 10 && code > 0 && dos_keypad_mode & 0x200)
mask |= SHIFT_P; /* ALT-1 => M-! etc. */
if (mask & SHIFT_P)
{
code = keyboard->shifted[code];
mask -= SHIFT_P;
modifiers &= ~shift_modifier;
}
else
if ((mask & ALT_GR_P) && keyboard->alt_gr && keyboard->alt_gr[code] != ' ')
code = keyboard->alt_gr[code];
else
code = keyboard->unshifted[code];
break;
case KeyPad:
code &= 0xff;
if (c == 0xe0) /* edit key */
kp_mode = 3;
else
if ((mask & (NUMLOCK_P|CTRL_P|SHIFT_P|ALT_P)) == NUMLOCK_P) /* numlock on */
kp_mode = dos_keypad_mode & 0x03;
else
kp_mode = (dos_keypad_mode >> 4) & 0x03;
switch (kp_mode)
{
case 0:
if (code == 10 && dos_decimal_point)
return dos_decimal_point;
return keypad_translate_map[code].char_code;
case 1:
code = 0xff00 | keypad_translate_map[code].keypad_code;
break;
case 2:
code = keypad_translate_map[code].meta_code;
modifiers = meta_modifier;
break;
case 3:
code = 0xff00 | keypad_translate_map[code].editkey_code;
break;
}
break;
case Grey:
code &= 0xff;
kp_mode = ((mask & (NUMLOCK_P|CTRL_P|SHIFT_P|ALT_P)) == NUMLOCK_P) ? 0x04 : 0x40;
if (dos_keypad_mode & kp_mode)
code = 0xff00 | grey_key_translate_map[code].keypad_code;
else
code = grey_key_translate_map[code].char_code;
break;
}
make_event:
if (code == 0)
continue;
if (code >= 0x100)
event.kind = non_ascii_keystroke;
else
event.kind = ascii_keystroke;
event.code = code;
event.modifiers = modifiers;
XSETFRAME (event.frame_or_window, selected_frame);
event.timestamp = event_timestamp ();
kbd_buffer_store_event (&event);
}
if (have_mouse > 0)
{
int but, press, x, y, ok;
/* Check for mouse movement *before* buttons. */
mouse_check_moved ();
for (but = 0; but < NUM_MOUSE_BUTTONS; but++)
for (press = 0; press < 2; press++)
{
if (press)
ok = mouse_pressed (but, &x, &y);
else
ok = mouse_released (but, &x, &y);
if (ok)
{
event.kind = mouse_click;
event.code = but;
event.modifiers = dos_get_modifiers (0)
| (press ? down_modifier : up_modifier);
event.x = x;
event.y = y;
XSETFRAME (event.frame_or_window, selected_frame);
event.timestamp = event_timestamp ();
kbd_buffer_store_event (&event);
}
}
}
return -1;
}
static int prev_get_char = -1;
/* Return 1 if a key is ready to be read without suspending execution. */
dos_keysns ()
{
if (prev_get_char != -1)
return 1;
else
return ((prev_get_char = dos_rawgetc ()) != -1);
}
/* Read a key. Return -1 if no key is ready. */
dos_keyread ()
{
if (prev_get_char != -1)
{
int c = prev_get_char;
prev_get_char = -1;
return c;
}
else
return dos_rawgetc ();
}
#ifndef HAVE_X_WINDOWS
/* See xterm.c for more info. */
void
pixel_to_glyph_coords (f, pix_x, pix_y, x, y, bounds, noclip)
FRAME_PTR f;
register int pix_x, pix_y;
register int *x, *y;
void /* XRectangle */ *bounds;
int noclip;
{
if (bounds) abort ();
/* Ignore clipping. */
*x = pix_x;
*y = pix_y;
}
void
glyph_to_pixel_coords (f, x, y, pix_x, pix_y)
FRAME_PTR f;
register int x, y;
register int *pix_x, *pix_y;
{
*pix_x = x;
*pix_y = y;
}
/* Simulation of X's menus. Nothing too fancy here -- just make it work
for now.
Actually, I don't know the meaning of all the parameters of the functions
here -- I only know how they are called by xmenu.c. I could of course
grab the nearest Xlib manual (down the hall, second-to-last door on the
left), but I don't think it's worth the effort. */
static XMenu *
IT_menu_create ()
{
XMenu *menu;
menu = (XMenu *) xmalloc (sizeof (XMenu));
menu->allocated = menu->count = menu->panecount = menu->width = 0;
return menu;
}
/* Allocate some (more) memory for MENU ensuring that there is room for one
for item. */
static void
IT_menu_make_room (XMenu *menu)
{
if (menu->allocated == 0)
{
int count = menu->allocated = 10;
menu->text = (char **) xmalloc (count * sizeof (char *));
menu->submenu = (XMenu **) xmalloc (count * sizeof (XMenu *));
menu->panenumber = (int *) xmalloc (count * sizeof (int));
}
else if (menu->allocated == menu->count)
{
int count = menu->allocated = menu->allocated + 10;
menu->text
= (char **) xrealloc (menu->text, count * sizeof (char *));
menu->submenu
= (XMenu **) xrealloc (menu->submenu, count * sizeof (XMenu *));
menu->panenumber
= (int *) xrealloc (menu->panenumber, count * sizeof (int));
}
}
/* Search the given menu structure for a given pane number. */
static XMenu *
IT_menu_search_pane (XMenu *menu, int pane)
{
int i;
XMenu *try;
for (i = 0; i < menu->count; i++)
if (menu->submenu[i])
{
if (pane == menu->panenumber[i])
return menu->submenu[i];
if ((try = IT_menu_search_pane (menu->submenu[i], pane)))
return try;
}
return (XMenu *) 0;
}
/* Determine how much screen space a given menu needs. */
static void
IT_menu_calc_size (XMenu *menu, int *width, int *height)
{
int i, h2, w2, maxsubwidth, maxheight;
maxsubwidth = 0;
maxheight = menu->count;
for (i = 0; i < menu->count; i++)
{
if (menu->submenu[i])
{
IT_menu_calc_size (menu->submenu[i], &w2, &h2);
if (w2 > maxsubwidth) maxsubwidth = w2;
if (i + h2 > maxheight) maxheight = i + h2;
}
}
*width = menu->width + maxsubwidth;
*height = maxheight;
}
/* Display MENU at (X,Y) using FACES. */
static void
IT_menu_display (XMenu *menu, int y, int x, int *faces)
{
int i, j, face, width;
GLYPH *text, *p;
char *q;
int mx, my;
int enabled, mousehere;
int row, col;
width = menu->width;
text = (GLYPH *) xmalloc ((width + 2) * sizeof (GLYPH));
ScreenGetCursor (&row, &col);
mouse_get_xy (&mx, &my);
IT_update_begin ();
for (i = 0; i < menu->count; i++)
{
IT_cursor_to (y + i, x);
enabled
= (!menu->submenu[i] && menu->panenumber[i]) || (menu->submenu[i]);
mousehere = (y + i == my && x <= mx && mx < x + width + 2);
face = faces[enabled + mousehere * 2];
p = text;
*p++ = FAST_MAKE_GLYPH (' ', face);
for (j = 0, q = menu->text[i]; *q; j++)
*p++ = FAST_MAKE_GLYPH (*q++, face);
for (; j < width; j++)
*p++ = FAST_MAKE_GLYPH (' ', face);
*p++ = FAST_MAKE_GLYPH (menu->submenu[i] ? 16 : ' ', face);
IT_write_glyphs (text, width + 2);
}
IT_update_end ();
IT_cursor_to (row, col);
xfree (text);
}
/* --------------------------- X Menu emulation ---------------------- */
/* Create a brand new menu structure. */
XMenu *
XMenuCreate (Display *foo1, Window foo2, char *foo3)
{
return IT_menu_create ();
}
/* Create a new pane and place it on the outer-most level. It is not
clear that it should be placed out there, but I don't know what else
to do. */
int
XMenuAddPane (Display *foo, XMenu *menu, char *txt, int enable)
{
int len;
if (!enable)
abort ();
IT_menu_make_room (menu);
menu->submenu[menu->count] = IT_menu_create ();
menu->text[menu->count] = txt;
menu->panenumber[menu->count] = ++menu->panecount;
menu->count++;
if ((len = strlen (txt)) > menu->width)
menu->width = len;
return menu->panecount;
}
/* Create a new item in a menu pane. */
int
XMenuAddSelection (Display *bar, XMenu *menu, int pane,
int foo, char *txt, int enable)
{
int len;
if (pane)
if (!(menu = IT_menu_search_pane (menu, pane)))
return XM_FAILURE;
IT_menu_make_room (menu);
menu->submenu[menu->count] = (XMenu *) 0;
menu->text[menu->count] = txt;
menu->panenumber[menu->count] = enable;
menu->count++;
if ((len = strlen (txt)) > menu->width)
menu->width = len;
return XM_SUCCESS;
}
/* Decide where the menu would be placed if requested at (X,Y). */
void
XMenuLocate (Display *foo0, XMenu *menu, int foo1, int foo2, int x, int y,
int *ulx, int *uly, int *width, int *height)
{
if (menu->count == 1 && menu->submenu[0])
/* Special case: the menu consists of only one pane. */
IT_menu_calc_size (menu->submenu[0], width, height);
else
IT_menu_calc_size (menu, width, height);
*ulx = x + 1;
*uly = y;
*width += 2;
}
struct IT_menu_state
{
void *screen_behind;
XMenu *menu;
int pane;
int x, y;
};
/* Display menu, wait for user's response, and return that response. */
int
XMenuActivate (Display *foo, XMenu *menu, int *pane, int *selidx,
int x0, int y0, unsigned ButtonMask, char **txt)
{
struct IT_menu_state *state;
int statecount;
int x, y, i, b;
int screensize;
int faces[4], selectface;
int leave, result, onepane;
/* Just in case we got here without a mouse present... */
if (have_mouse <= 0)
return XM_IA_SELECT;
state = alloca (menu->panecount * sizeof (struct IT_menu_state));
screensize = screen_size * 2;
faces[0]
= compute_glyph_face (&the_only_frame,
face_name_id_number
(&the_only_frame,
intern ("msdos-menu-passive-face")),
0);
faces[1]
= compute_glyph_face (&the_only_frame,
face_name_id_number
(&the_only_frame,
intern ("msdos-menu-active-face")),
0);
selectface
= face_name_id_number (&the_only_frame, intern ("msdos-menu-select-face"));
faces[2] = compute_glyph_face (&the_only_frame, selectface, faces[0]);
faces[3] = compute_glyph_face (&the_only_frame, selectface, faces[1]);
statecount = 1;
state[0].menu = menu;
mouse_off ();
ScreenRetrieve (state[0].screen_behind = xmalloc (screensize));
if ((onepane = menu->count == 1 && menu->submenu[0]))
{
menu->width = menu->submenu[0]->width;
state[0].menu = menu->submenu[0];
}
else
{
state[0].menu = menu;
}
state[0].x = x0 - 1;
state[0].y = y0;
state[0].pane = onepane;
mouse_last_x = -1; /* A hack that forces display. */
leave = 0;
while (!leave)
{
if (!mouse_visible) mouse_on ();
mouse_check_moved ();
if (selected_frame->mouse_moved)
{
selected_frame->mouse_moved = 0;
result = XM_IA_SELECT;
mouse_get_xy (&x, &y);
for (i = 0; i < statecount; i++)
if (state[i].x <= x && x < state[i].x + state[i].menu->width + 2)
{
int dy = y - state[i].y;
if (0 <= dy && dy < state[i].menu->count)
{
if (!state[i].menu->submenu[dy])
if (state[i].menu->panenumber[dy])
result = XM_SUCCESS;
else
result = XM_IA_SELECT;
*pane = state[i].pane - 1;
*selidx = dy;
/* We hit some part of a menu, so drop extra menues that
have been opened. That does not include an open and
active submenu. */
if (i != statecount - 2
|| state[i].menu->submenu[dy] != state[i+1].menu)
while (i != statecount - 1)
{
statecount--;
mouse_off ();
ScreenUpdate (state[statecount].screen_behind);
xfree (state[statecount].screen_behind);
}
if (i == statecount - 1 && state[i].menu->submenu[dy])
{
IT_menu_display (state[i].menu,
state[i].y,
state[i].x,
faces);
state[statecount].menu = state[i].menu->submenu[dy];
state[statecount].pane = state[i].menu->panenumber[dy];
mouse_off ();
ScreenRetrieve (state[statecount].screen_behind
= xmalloc (screensize));
state[statecount].x
= state[i].x + state[i].menu->width + 2;
state[statecount].y = y;
statecount++;
}
}
}
IT_menu_display (state[statecount - 1].menu,
state[statecount - 1].y,
state[statecount - 1].x,
faces);
}
for (b = 0; b < mouse_button_count; b++)
{
(void) mouse_pressed (b, &x, &y);
if (mouse_released (b, &x, &y))
leave = 1;
}
}
mouse_off ();
ScreenUpdate (state[0].screen_behind);
while (statecount--)
xfree (state[statecount].screen_behind);
return result;
}
/* Dispose of a menu. */
void
XMenuDestroy (Display *foo, XMenu *menu)
{
int i;
if (menu->allocated)
{
for (i = 0; i < menu->count; i++)
if (menu->submenu[i])
XMenuDestroy (foo, menu->submenu[i]);
xfree (menu->text);
xfree (menu->submenu);
xfree (menu->panenumber);
}
xfree (menu);
}
int
x_pixel_width (struct frame *f)
{
return FRAME_WIDTH (f);
}
int
x_pixel_height (struct frame *f)
{
return FRAME_HEIGHT (f);
}
#endif /* !HAVE_X_WINDOWS */
/* ----------------------- DOS / UNIX conversion --------------------- */
/* Destructively turn backslashes into slashes. */
void
dostounix_filename (p)
register char *p;
{
while (*p)
{
if (*p == '\\')
*p = '/';
p++;
}
}
/* Destructively turn slashes into backslashes. */
void
unixtodos_filename (p)
register char *p;
{
while (*p)
{
if (*p == '/')
*p = '\\';
p++;
}
}
/* Get the default directory for a given drive. 0=def, 1=A, 2=B, ... */
int
getdefdir (drive, dst)
int drive;
char *dst;
{
union REGS regs;
*dst++ = '/';
regs.h.dl = drive;
regs.x.si = (int) dst;
regs.h.ah = 0x47;
intdos (&regs, &regs);
return !regs.x.cflag;
}
/* Remove all CR's that are followed by a LF. */
int
crlf_to_lf (n, buf)
register int n;
register unsigned char *buf;
{
unsigned char *np = buf;
unsigned char *startp = buf;
unsigned char *endp = buf + n;
unsigned char c;
if (n == 0)
return n;
while (buf < endp - 1)
{
if (*buf == 0x0d)
{
if (*(++buf) != 0x0a)
*np++ = 0x0d;
}
else
*np++ = *buf++;
}
if (buf < endp)
*np++ = *buf++;
return np - startp;
}
/* The Emacs root directory as determined by init_environment. */
static char emacsroot[MAXPATHLEN];
char *
rootrelativepath (rel)
char *rel;
{
static char result[MAXPATHLEN + 10];
strcpy (result, emacsroot);
strcat (result, "/");
strcat (result, rel);
return result;
}
/* Define a lot of environment variables if not already defined. Don't
remove anything unless you know what you're doing -- lots of code will
break if one or more of these are missing. */
void
init_environment (argc, argv, skip_args)
int argc;
char **argv;
int skip_args;
{
char *s, *t, *root;
int len;
/* Find our root from argv[0]. Assuming argv[0] is, say,
"c:/emacs/bin/emacs.exe" our root will be "c:/emacs". */
root = alloca (MAXPATHLEN + 20);
_fixpath (argv[0], root);
strlwr (root);
len = strlen (root);
while (len > 0 && root[len] != '/' && root[len] != ':')
len--;
root[len] = '\0';
if (len > 4 && strcmp (root + len - 4, "/bin") == 0)
root[len - 4] = '\0';
else
strcpy (root, "c:/emacs"); /* Only under debuggers, I think. */
len = strlen (root);
strcpy (emacsroot, root);
/* We default HOME to our root. */
setenv ("HOME", root, 0);
/* We default EMACSPATH to root + "/bin". */
strcpy (root + len, "/bin");
setenv ("EMACSPATH", root, 0);
/* I don't expect anybody to ever use other terminals so the internal
terminal is the default. */
setenv ("TERM", "internal", 0);
#ifdef HAVE_X_WINDOWS
/* Emacs expects DISPLAY to be set. */
setenv ("DISPLAY", "unix:0.0", 0);
#endif
/* SHELL is a bit tricky -- COMSPEC is the closest we come, but we must
downcase it and mirror the backslashes. */
s = getenv ("COMSPEC");
if (!s) s = "c:/command.com";
t = alloca (strlen (s) + 1);
strcpy (t, s);
strlwr (t);
dostounix_filename (t);
setenv ("SHELL", t, 0);
/* PATH is also downcased and backslashes mirrored. */
s = getenv ("PATH");
if (!s) s = "";
t = alloca (strlen (s) + 3);
/* Current directory is always considered part of MsDos's path but it is
not normally mentioned. Now it is. */
strcat (strcpy (t, ".;"), s);
strlwr (t);
dostounix_filename (t); /* Not a single file name, but this should work. */
setenv ("PATH", t, 1);
/* In some sense all dos users have root privileges, so... */
setenv ("USER", "root", 0);
setenv ("NAME", getenv ("USER"), 0);
/* Time zone determined from country code. To make this possible, the
country code may not span more than one time zone. In other words,
in the USA, you lose. */
if (!getenv ("TZ"))
switch (dos_country_code)
{
case 31: /* Belgium */
case 32: /* The Netherlands */
case 33: /* France */
case 34: /* Spain */
case 36: /* Hungary */
case 38: /* Yugoslavia (or what's left of it?) */
case 39: /* Italy */
case 41: /* Switzerland */
case 42: /* Tjekia */
case 45: /* Denmark */
case 46: /* Sweden */
case 47: /* Norway */
case 48: /* Poland */
case 49: /* Germany */
/* Daylight saving from last Sunday in March to last Sunday in
September, both at 2AM. */
setenv ("TZ", "MET-01METDST-02,M3.5.0/02:00,M9.5.0/02:00", 0);
break;
case 44: /* United Kingdom */
case 351: /* Portugal */
case 354: /* Iceland */
setenv ("TZ", "GMT+00", 0);
break;
case 81: /* Japan */
case 82: /* Korea */
setenv ("TZ", "JST-09", 0);
break;
case 90: /* Turkey */
case 358: /* Finland */
setenv ("TZ", "EET-02", 0);
break;
case 972: /* Israel */
/* This is an approximation. (For exact rules, use the
`zoneinfo/israel' file which comes with DJGPP, but you need
to install it in `/usr/share/zoneinfo/' directory first.) */
setenv ("TZ", "IST-02IDT-03,M4.1.6/00:00,M9.5.6/01:00", 0);
break;
}
init_gettimeofday ();
}
static int break_stat; /* BREAK check mode status. */
static int stdin_stat; /* stdin IOCTL status. */
/* These must be global. */
static _go32_dpmi_seginfo ctrl_break_vector;
static _go32_dpmi_registers ctrl_break_regs;
static int ctrlbreakinstalled = 0;
/* Interrupt level detection of Ctrl-Break. Don't do anything fancy here! */
void
ctrl_break_func (regs)
_go32_dpmi_registers *regs;
{
Vquit_flag = Qt;
}
void
install_ctrl_break_check ()
{
if (!ctrlbreakinstalled)
{
/* Don't press Ctrl-Break if you don't have either DPMI or Emacs
was compiler with Djgpp 1.11 maintenance level 5 or later! */
ctrlbreakinstalled = 1;
ctrl_break_vector.pm_offset = (int) ctrl_break_func;
_go32_dpmi_allocate_real_mode_callback_iret (&ctrl_break_vector,
&ctrl_break_regs);
_go32_dpmi_set_real_mode_interrupt_vector (0x1b, &ctrl_break_vector);
}
}
/*
* Turn off Dos' Ctrl-C checking and inhibit interpretation of
* control chars by Dos.
* Determine the keyboard type.
*/
int
dos_ttraw ()
{
union REGS inregs, outregs;
static int first_time = 1;
break_stat = getcbrk ();
setcbrk (0);
install_ctrl_break_check ();
if (first_time)
{
inregs.h.ah = 0xc0;
int86 (0x15, &inregs, &outregs);
extended_kbd = (!outregs.x.cflag) && (outregs.h.ah == 0);
have_mouse = 0;
if (internal_terminal
#ifdef HAVE_X_WINDOWS
&& inhibit_window_system
#endif
)
{
inregs.x.ax = 0x0021;
int86 (0x33, &inregs, &outregs);
have_mouse = (outregs.x.ax & 0xffff) == 0xffff;
if (!have_mouse)
{
/* Reportedly, the above doesn't work for some mouse drivers. There
is an additional detection method that should work, but might be
a little slower. Use that as an alternative. */
inregs.x.ax = 0x0000;
int86 (0x33, &inregs, &outregs);
have_mouse = (outregs.x.ax & 0xffff) == 0xffff;
}
if (have_mouse)
{
have_mouse = 1; /* enable mouse */
mouse_visible = 0;
if (outregs.x.bx == 3)
{
mouse_button_count = 3;
mouse_button_translate[0] = 0; /* Left */
mouse_button_translate[1] = 2; /* Middle */
mouse_button_translate[2] = 1; /* Right */
}
else
{
mouse_button_count = 2;
mouse_button_translate[0] = 0;
mouse_button_translate[1] = 1;
}
mouse_position_hook = &mouse_get_pos;
mouse_init ();
}
}
first_time = 0;
}
inregs.x.ax = 0x4400; /* Get IOCTL status. */
inregs.x.bx = 0x00; /* 0 = stdin. */
intdos (&inregs, &outregs);
stdin_stat = outregs.h.dl;
inregs.x.dx = stdin_stat | 0x0020; /* raw mode */
inregs.x.ax = 0x4401; /* Set IOCTL status */
intdos (&inregs, &outregs);
return !outregs.x.cflag;
}
/* Restore status of standard input and Ctrl-C checking. */
int
dos_ttcooked ()
{
union REGS inregs, outregs;
setcbrk (break_stat);
mouse_off ();
inregs.x.ax = 0x4401; /* Set IOCTL status. */
inregs.x.bx = 0x00; /* 0 = stdin. */
inregs.x.dx = stdin_stat;
intdos (&inregs, &outregs);
return !outregs.x.cflag;
}
/* Run command as specified by ARGV in directory DIR.
The command is run with input from TEMPIN and output to file TEMPOUT. */
int
run_msdos_command (argv, dir, tempin, tempout)
unsigned char **argv;
Lisp_Object dir;
int tempin, tempout;
{
char *saveargv1, *saveargv2, **envv;
char oldwd[MAXPATHLEN + 1]; /* Fixed size is safe on MSDOS. */
int msshell, result = -1;
int in, out, inbak, outbak, errbak;
int x, y;
Lisp_Object cmd;
/* Get current directory as MSDOS cwd is not per-process. */
getwd (oldwd);
cmd = Ffile_name_nondirectory (build_string (argv[0]));
msshell = !NILP (Fmember (cmd, Fsymbol_value (intern ("msdos-shells"))))
&& !strcmp ("-c", argv[1]);
if (msshell)
{
saveargv1 = argv[1];
saveargv2 = argv[2];
argv[1] = "/c";
if (argv[2])
{
char *p = alloca (strlen (argv[2]) + 1);
strcpy (argv[2] = p, saveargv2);
while (*p && isspace (*p))
p++;
while (*p && !isspace (*p))
if (*p == '/')
*p++ = '\\';
else
p++;
}
}
/* Build the environment array. */
{
extern Lisp_Object Vprocess_environment;
Lisp_Object tmp, lst;
int i, len;
lst = Vprocess_environment;
len = XFASTINT (Flength (lst));
envv = alloca ((len + 1) * sizeof (char *));
for (i = 0; i < len; i++)
{
tmp = Fcar (lst);
lst = Fcdr (lst);
CHECK_STRING (tmp, 0);
envv[i] = alloca (XSTRING (tmp)->size + 1);
strcpy (envv[i], XSTRING (tmp)->data);
}
envv[len] = (char *) 0;
}
if (STRINGP (dir))
chdir (XSTRING (dir)->data);
inbak = dup (0);
outbak = dup (1);
errbak = dup (2);
if (inbak < 0 || outbak < 0 || errbak < 0)
goto done; /* Allocation might fail due to lack of descriptors. */
if (have_mouse > 0)
mouse_get_xy (&x, &y);
dos_ttcooked (); /* do it here while 0 = stdin */
dup2 (tempin, 0);
dup2 (tempout, 1);
dup2 (tempout, 2);
result = spawnve (P_WAIT, argv[0], argv, envv);
dup2 (inbak, 0);
dup2 (outbak, 1);
dup2 (errbak, 2);
close (inbak);
close (outbak);
close (errbak);
dos_ttraw ();
if (have_mouse > 0)
{
mouse_init ();
mouse_moveto (x, y);
}
done:
chdir (oldwd);
if (msshell)
{
argv[1] = saveargv1;
argv[2] = saveargv2;
}
return result;
}
croak (badfunc)
char *badfunc;
{
fprintf (stderr, "%s not yet implemented\r\n", badfunc);
reset_sys_modes ();
exit (1);
}
/* ------------------------- Compatibility functions -------------------
* gethostname
* gettimeofday
*/
/*
* Hostnames for a pc are not really funny,
* but they are used in change log so we emulate the best we can.
*/
gethostname (p, size)
char *p;
int size;
{
char *q = egetenv ("HOSTNAME");
if (!q) q = "pc";
strcpy (p, q);
return 0;
}
/* When time zones are set from Ms-Dos too many C-libraries are playing
tricks with time values. We solve this by defining our own version
of `gettimeofday' bypassing GO32. Our version needs to be initialized
once and after each call to `tzset' with TZ changed. That is
accomplished by aliasing tzset to init_gettimeofday. */
static struct tm time_rec;
int
gettimeofday (struct timeval *tp, struct timezone *tzp)
{
if (tp)
{
struct time t;
struct tm tm;
gettime (&t);
if (t.ti_hour < time_rec.tm_hour) /* midnight wrap */
{
struct date d;
getdate (&d);
time_rec.tm_year = d.da_year - 1900;
time_rec.tm_mon = d.da_mon - 1;
time_rec.tm_mday = d.da_day;
}
time_rec.tm_hour = t.ti_hour;
time_rec.tm_min = t.ti_min;
time_rec.tm_sec = t.ti_sec;
tm = time_rec;
tm.tm_gmtoff = dos_timezone_offset;
tp->tv_sec = mktime (&tm); /* may modify tm */
tp->tv_usec = t.ti_hund * (1000000 / 100);
}
/* Ignore tzp; it's obsolescent. */
return 0;
}
/*
* A list of unimplemented functions that we silently ignore.
*/
unsigned alarm (s) unsigned s; {}
fork () { return 0; }
int kill (x, y) int x, y; { return -1; }
nice (p) int p; {}
void volatile pause () {}
request_sigio () {}
setpgrp () {return 0; }
setpriority (x,y,z) int x,y,z; { return 0; }
sigsetmask (x) int x; { return 0; }
unrequest_sigio () {}
int run_dos_timer_hooks = 0;
#ifndef HAVE_SELECT
#include "sysselect.h"
static int last_ti_sec = -1;
static int dos_menubar_clock_displayed = 0;
static void
check_timer (t)
struct time *t;
{
gettime (t);
if (t->ti_sec == last_ti_sec)
return;
last_ti_sec = t->ti_sec;
if (!NILP (Vdos_menubar_clock))
{
char clock_str[16];
int len;
int min = t->ti_min;
int hour = t->ti_hour;
if (dos_timezone_offset)
{
int tz = dos_timezone_offset;
min -= tz % 60;
if (min < 0)
min += 60, hour--;
else
if (min >= 60)
min -= 60, hour++;
if ((hour -= (tz / 60)) < 0)
hour += 24;
else
hour %= 24;
}
if ((dos_country_info[0x11] & 0x01) == 0) /* 12 hour clock */
{
hour %= 12;
if (hour == 0) hour = 12;
}
len = sprintf (clock_str, "%2d.%02d.%02d", hour, min, t->ti_sec);
dos_direct_output (0, screen_size_X - len - 1, clock_str, len);
dos_menubar_clock_displayed = 1;
}
else if (dos_menubar_clock_displayed)
{
/* Erase last displayed time. */
dos_direct_output (0, screen_size_X - 9, " ", 8);
dos_menubar_clock_displayed = 0;
}
if (!NILP (Vdos_timer_hooks))
run_dos_timer_hooks++;
}
/* Only event queue is checked. */
int
sys_select (nfds, rfds, wfds, efds, timeout)
int nfds;
SELECT_TYPE *rfds, *wfds, *efds;
EMACS_TIME *timeout;
{
int check_input;
long timeoutval, clnow, cllast;
struct time t;
check_input = 0;
if (rfds)
{
check_input = FD_ISSET (0, rfds);
FD_ZERO (rfds);
}
if (wfds)
FD_ZERO (wfds);
if (efds)
FD_ZERO (efds);
if (nfds != 1)
abort ();
/* If we are looking only for the terminal, with no timeout,
just read it and wait -- that's more efficient. */
if (!timeout)
{
do
check_timer (&t); /* check timer even if some input is pending */
while (!detect_input_pending ());
}
else
{
timeoutval = EMACS_SECS (*timeout) * 100 + EMACS_USECS (*timeout) / 10000;
check_timer (&t);
cllast = t.ti_sec * 100 + t.ti_hund;
while (!check_input || !detect_input_pending ())
{
check_timer (&t);
clnow = t.ti_sec * 100 + t.ti_hund;
if (clnow < cllast) /* time wrap */
timeoutval -= clnow + 6000 - cllast;
else
timeoutval -= clnow - cllast;
if (timeoutval <= 0) /* Stop on timer being cleared */
return 0;
cllast = clnow;
}
}
FD_SET (0, rfds);
return 1;
}
#endif
/*
* Define overlayed functions:
*
* chdir -> sys_chdir
* tzset -> init_gettimeofday
* abort -> dos_abort
*/
#ifdef chdir
#undef chdir
extern int chdir ();
int
sys_chdir (path)
const char* path;
{
int len = strlen (path);
char *tmp = (char *)path;
if (*tmp && tmp[1] == ':')
{
if (getdisk () != tolower (tmp[0]) - 'a')
setdisk (tolower (tmp[0]) - 'a');
tmp += 2; /* strip drive: KFS 1995-07-06 */
len -= 2;
}
if (len > 1 && (tmp[len - 1] == '/'))
{
char *tmp1 = (char *) alloca (len + 1);
strcpy (tmp1, tmp);
tmp1[len - 1] = 0;
tmp = tmp1;
}
return chdir (tmp);
}
#endif
#ifdef tzset
#undef tzset
extern void tzset (void);
void
init_gettimeofday ()
{
time_t ltm, gtm;
struct tm *lstm;
tzset ();
ltm = gtm = time (NULL);
ltm = mktime (lstm = localtime (&ltm));
gtm = mktime (gmtime (&gtm));
time_rec.tm_hour = 99; /* force gettimeofday to get date */
time_rec.tm_isdst = lstm->tm_isdst;
dos_timezone_offset = time_rec.tm_gmtoff = (int)(gtm - ltm) / 60;
}
#endif
#ifdef abort
#undef abort
void
dos_abort (file, line)
char *file;
int line;
{
char buffer1[200], buffer2[400];
int i, j;
sprintf (buffer1, "<EMACS FATAL ERROR IN %s LINE %d>", file, line);
for (i = j = 0; buffer1[i]; i++) {
buffer2[j++] = buffer1[i];
buffer2[j++] = 0x70;
}
dosmemput (buffer2, j, (int)ScreenPrimary);
ScreenSetCursor (2, 0);
abort ();
}
#endif
syms_of_msdos ()
{
recent_doskeys = Fmake_vector (make_number (NUM_RECENT_DOSKEYS), Qnil);
staticpro (&recent_doskeys);
defsubr (&Srecent_doskeys);
}
#endif /* MSDOS */
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