1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: x11.c,v 2.32 2004/03/30 16:13:01 schorsch Exp $"; |
3 |
#endif |
4 |
/* |
5 |
* x11.c - driver for X-windows version 11 |
6 |
*/ |
7 |
|
8 |
#include "copyright.h" |
9 |
|
10 |
#include "standard.h" |
11 |
#include <sys/ioctl.h> |
12 |
#if !defined(FNDELAY) && defined(O_NONBLOCK) |
13 |
#define FNDELAY O_NONBLOCK |
14 |
#endif |
15 |
|
16 |
#include <X11/Xlib.h> |
17 |
#include <X11/cursorfont.h> |
18 |
#include <X11/Xutil.h> |
19 |
|
20 |
#include "platform.h" |
21 |
#include "color.h" |
22 |
#include "driver.h" |
23 |
#include "x11twind.h" |
24 |
#include "x11icon.h" |
25 |
|
26 |
#define GAMMA 2.2 /* default exponent correction */ |
27 |
|
28 |
#define MINWIDTH (32*COMCW) /* minimum graphics window width */ |
29 |
#define MINHEIGHT (MINWIDTH/2) /* minimum graphics window height */ |
30 |
|
31 |
#define BORWIDTH 5 /* border width */ |
32 |
#define COMHEIGHT (COMLH*COMCH) /* command line height (pixels) */ |
33 |
|
34 |
#define COMFN "8x13" /* command line font name */ |
35 |
#define COMLH 3 /* number of command lines */ |
36 |
#define COMCW 8 /* approx. character width (pixels) */ |
37 |
#define COMCH 14 /* approx. character height (pixels) */ |
38 |
|
39 |
#define ourscreen DefaultScreen(ourdisplay) |
40 |
#define ourroot RootWindow(ourdisplay,ourscreen) |
41 |
|
42 |
#define levptr(etype) ((etype *)¤tevent) |
43 |
|
44 |
static XEvent currentevent; /* current event */ |
45 |
|
46 |
static int ncolors = 0; /* color table size */ |
47 |
static int mapped = 0; /* window is mapped? */ |
48 |
static unsigned long *pixval = NULL; /* allocated pixels */ |
49 |
static unsigned long ourblack=0, ourwhite=1; |
50 |
|
51 |
static Display *ourdisplay = NULL; /* our display */ |
52 |
|
53 |
static XVisualInfo ourvinfo; /* our visual information */ |
54 |
|
55 |
static Window gwind = 0; /* our graphics window */ |
56 |
|
57 |
static Cursor pickcursor = 0; /* cursor used for picking */ |
58 |
|
59 |
static int gwidth, gheight; /* graphics window size */ |
60 |
|
61 |
static int comheight; /* desired comline height */ |
62 |
static TEXTWIND *comline = NULL; /* our command line */ |
63 |
|
64 |
static char c_queue[64]; /* input queue */ |
65 |
static int c_first = 0; /* first character in queue */ |
66 |
static int c_last = 0; /* last character in queue */ |
67 |
|
68 |
static GC ourgc = 0; /* our graphics context for drawing */ |
69 |
|
70 |
static Colormap ourmap = 0; /* our color map */ |
71 |
|
72 |
#define IC_X11 0 |
73 |
#define IC_IOCTL 1 |
74 |
#define IC_READ 2 |
75 |
|
76 |
static int inpcheck; /* whence to check input */ |
77 |
|
78 |
static void x11_errout(char *msg); |
79 |
|
80 |
static dr_closef_t x11_close; |
81 |
static dr_clearf_t x11_clear; |
82 |
static dr_paintrf_t x11_paintr; |
83 |
static dr_getcurf_t x11_getcur; |
84 |
static dr_comoutf_t x11_comout; |
85 |
static dr_cominf_t x11_comin; |
86 |
static dr_flushf_t x11_flush; |
87 |
|
88 |
static dr_cominf_t std_comin; |
89 |
static dr_comoutf_t std_comout; |
90 |
|
91 |
static struct driver x11_driver = { |
92 |
x11_close, x11_clear, x11_paintr, x11_getcur, |
93 |
NULL, NULL, x11_flush, 1.0 |
94 |
}; |
95 |
|
96 |
static dr_getchf_t x11_getc; |
97 |
|
98 |
static void freepixels(void); |
99 |
static int getpixels(void); |
100 |
static dr_newcolrf_t xnewcolr; |
101 |
static unsigned long true_pixel(COLOR col); |
102 |
static void getevent(void); |
103 |
static void getkey(XKeyPressedEvent *ekey); |
104 |
static void fixwindow(XExposeEvent *eexp); |
105 |
static void resizewindow(XConfigureEvent *ersz); |
106 |
|
107 |
extern dr_initf_t x11_init; /* XXX this should be in a seperate header file */ |
108 |
|
109 |
|
110 |
extern struct driver * |
111 |
x11_init( /* initialize driver */ |
112 |
char *name, |
113 |
char *id |
114 |
) |
115 |
{ |
116 |
char *gv; |
117 |
int nplanes; |
118 |
XSetWindowAttributes ourwinattr; |
119 |
XWMHints ourxwmhints; |
120 |
XSizeHints oursizhints; |
121 |
/* open display server */ |
122 |
ourdisplay = XOpenDisplay(NULL); |
123 |
if (ourdisplay == NULL) { |
124 |
eputs("cannot open X-windows; DISPLAY variable set?\n"); |
125 |
return(NULL); |
126 |
} |
127 |
/* find a usable visual */ |
128 |
nplanes = DisplayPlanes(ourdisplay, ourscreen); |
129 |
if (XMatchVisualInfo(ourdisplay,ourscreen, |
130 |
nplanes>12?nplanes:24,TrueColor,&ourvinfo) || |
131 |
XMatchVisualInfo(ourdisplay,ourscreen, |
132 |
nplanes>12?nplanes:24,DirectColor,&ourvinfo)) { |
133 |
ourblack = 0; |
134 |
ourwhite = ourvinfo.red_mask | |
135 |
ourvinfo.green_mask | |
136 |
ourvinfo.blue_mask ; |
137 |
} else { |
138 |
if (nplanes < 4) { |
139 |
eputs("not enough colors\n"); |
140 |
return(NULL); |
141 |
} |
142 |
if (!XMatchVisualInfo(ourdisplay,ourscreen, |
143 |
nplanes,PseudoColor,&ourvinfo) && |
144 |
!XMatchVisualInfo(ourdisplay,ourscreen, |
145 |
nplanes,GrayScale,&ourvinfo)) { |
146 |
eputs("unsupported visual type\n"); |
147 |
return(NULL); |
148 |
} |
149 |
ourblack = BlackPixel(ourdisplay,ourscreen); |
150 |
ourwhite = WhitePixel(ourdisplay,ourscreen); |
151 |
} |
152 |
/* set gamma */ |
153 |
if ((gv = XGetDefault(ourdisplay, "radiance", "gamma")) != NULL |
154 |
|| (gv = getenv("DISPLAY_GAMMA")) != NULL) |
155 |
make_gmap(atof(gv)); |
156 |
else |
157 |
make_gmap(GAMMA); |
158 |
/* X11 command line or no? */ |
159 |
if (!strcmp(name, "x11")) |
160 |
comheight = COMHEIGHT; |
161 |
else /* "x11d" */ { |
162 |
comheight = 0; |
163 |
#ifndef FNDELAY |
164 |
eputs("warning: x11d driver not fully functional on this machine\n"); |
165 |
#endif |
166 |
} |
167 |
/* open window */ |
168 |
ourwinattr.background_pixel = ourblack; |
169 |
ourwinattr.border_pixel = ourblack; |
170 |
/* this is stupid */ |
171 |
ourwinattr.colormap = XCreateColormap(ourdisplay, ourroot, |
172 |
ourvinfo.visual, AllocNone); |
173 |
gwind = XCreateWindow(ourdisplay, ourroot, 0, 0, |
174 |
DisplayWidth(ourdisplay,ourscreen)-2*BORWIDTH, |
175 |
DisplayHeight(ourdisplay,ourscreen)-2*BORWIDTH, |
176 |
BORWIDTH, ourvinfo.depth, InputOutput, ourvinfo.visual, |
177 |
CWBackPixel|CWBorderPixel|CWColormap, &ourwinattr); |
178 |
if (gwind == 0) { |
179 |
eputs("cannot create window\n"); |
180 |
return(NULL); |
181 |
} |
182 |
XStoreName(ourdisplay, gwind, id); |
183 |
/* create a cursor */ |
184 |
pickcursor = XCreateFontCursor(ourdisplay, XC_diamond_cross); |
185 |
ourgc = XCreateGC(ourdisplay, gwind, 0, NULL); |
186 |
ourxwmhints.flags = InputHint|IconPixmapHint; |
187 |
ourxwmhints.input = True; |
188 |
ourxwmhints.icon_pixmap = XCreateBitmapFromData(ourdisplay, |
189 |
gwind, x11icon_bits, x11icon_width, x11icon_height); |
190 |
XSetWMHints(ourdisplay, gwind, &ourxwmhints); |
191 |
oursizhints.min_width = MINWIDTH; |
192 |
oursizhints.min_height = MINHEIGHT+comheight; |
193 |
oursizhints.flags = PMinSize; |
194 |
XSetNormalHints(ourdisplay, gwind, &oursizhints); |
195 |
XSelectInput(ourdisplay, gwind, ExposureMask); |
196 |
XMapWindow(ourdisplay, gwind); |
197 |
XWindowEvent(ourdisplay, gwind, ExposureMask, levptr(XEvent)); |
198 |
gwidth = levptr(XExposeEvent)->width; |
199 |
gheight = levptr(XExposeEvent)->height - comheight; |
200 |
x11_driver.xsiz = gwidth < MINWIDTH ? MINWIDTH : gwidth; |
201 |
x11_driver.ysiz = gheight < MINHEIGHT ? MINHEIGHT : gheight; |
202 |
x11_driver.inpready = 0; |
203 |
mapped = 1; |
204 |
/* set i/o vectors */ |
205 |
if (comheight) { |
206 |
x11_driver.comin = x11_comin; |
207 |
x11_driver.comout = x11_comout; |
208 |
erract[COMMAND].pf = x11_comout; |
209 |
if (erract[WARNING].pf != NULL) |
210 |
erract[WARNING].pf = x11_errout; |
211 |
inpcheck = IC_X11; |
212 |
} else { |
213 |
x11_driver.comin = std_comin; |
214 |
x11_driver.comout = std_comout; |
215 |
erract[COMMAND].pf = std_comout; |
216 |
inpcheck = IC_IOCTL; |
217 |
} |
218 |
return(&x11_driver); |
219 |
} |
220 |
|
221 |
|
222 |
static void |
223 |
x11_close(void) /* close our display */ |
224 |
{ |
225 |
erract[COMMAND].pf = NULL; /* reset error vectors */ |
226 |
if (erract[WARNING].pf != NULL) |
227 |
erract[WARNING].pf = wputs; |
228 |
if (ourdisplay == NULL) |
229 |
return; |
230 |
if (comline != NULL) { |
231 |
xt_close(comline); |
232 |
comline = NULL; |
233 |
} |
234 |
freepixels(); |
235 |
XFreeGC(ourdisplay, ourgc); |
236 |
XDestroyWindow(ourdisplay, gwind); |
237 |
gwind = 0; |
238 |
ourgc = 0; |
239 |
XFreeCursor(ourdisplay, pickcursor); |
240 |
XCloseDisplay(ourdisplay); |
241 |
ourdisplay = NULL; |
242 |
} |
243 |
|
244 |
|
245 |
static void |
246 |
x11_clear( /* clear our display */ |
247 |
int xres, |
248 |
int yres |
249 |
) |
250 |
{ |
251 |
/* check limits */ |
252 |
if (xres < MINWIDTH) |
253 |
xres = MINWIDTH; |
254 |
if (yres < MINHEIGHT) |
255 |
yres = MINHEIGHT; |
256 |
/* resize window */ |
257 |
if (xres != gwidth || yres != gheight) { |
258 |
XSelectInput(ourdisplay, gwind, 0); |
259 |
XResizeWindow(ourdisplay, gwind, xres, yres+comheight); |
260 |
gwidth = xres; |
261 |
gheight = yres; |
262 |
XFlush(ourdisplay); |
263 |
sleep(2); /* wait for window manager */ |
264 |
XSync(ourdisplay, 1); /* discard input */ |
265 |
} |
266 |
XClearWindow(ourdisplay, gwind); |
267 |
/* reinitialize color table */ |
268 |
if (ourvinfo.class == PseudoColor || ourvinfo.class == GrayScale) { |
269 |
if (getpixels() == 0) |
270 |
eputs("cannot allocate colors\n"); |
271 |
else |
272 |
new_ctab(ncolors); |
273 |
} |
274 |
/* get new command line */ |
275 |
if (comline != NULL) |
276 |
xt_close(comline); |
277 |
if (comheight) { |
278 |
comline = xt_open(ourdisplay, gwind, 0, gheight, gwidth, |
279 |
comheight, 0, ourblack, ourwhite, COMFN); |
280 |
if (comline == NULL) { |
281 |
eputs("cannot open command line window\n"); |
282 |
quit(1); |
283 |
} |
284 |
XSelectInput(ourdisplay, comline->w, ExposureMask); |
285 |
/* remove earmuffs */ |
286 |
XSelectInput(ourdisplay, gwind, |
287 |
StructureNotifyMask|ExposureMask|KeyPressMask|ButtonPressMask); |
288 |
} else /* remove earmuffs */ |
289 |
XSelectInput(ourdisplay, gwind, |
290 |
StructureNotifyMask|ExposureMask|ButtonPressMask); |
291 |
} |
292 |
|
293 |
|
294 |
static void |
295 |
x11_paintr( /* fill a rectangle */ |
296 |
COLOR col, |
297 |
int xmin, |
298 |
int ymin, |
299 |
int xmax, |
300 |
int ymax |
301 |
) |
302 |
{ |
303 |
unsigned long pixel; |
304 |
|
305 |
if (!mapped) |
306 |
return; |
307 |
if (ncolors > 0) |
308 |
pixel = pixval[get_pixel(col, xnewcolr)]; |
309 |
else |
310 |
pixel = true_pixel(col); |
311 |
XSetForeground(ourdisplay, ourgc, pixel); |
312 |
XFillRectangle(ourdisplay, gwind, |
313 |
ourgc, xmin, gheight-ymax, xmax-xmin, ymax-ymin); |
314 |
} |
315 |
|
316 |
|
317 |
static void |
318 |
x11_flush(void) /* flush output */ |
319 |
{ |
320 |
char buf[256]; |
321 |
int n; |
322 |
/* check for input */ |
323 |
XNoOp(ourdisplay); |
324 |
n = XPending(ourdisplay); /* from X server */ |
325 |
while (n-- > 0) |
326 |
getevent(); |
327 |
#ifdef FNDELAY |
328 |
if (inpcheck == IC_IOCTL) { /* from stdin */ |
329 |
#ifdef FIONREAD |
330 |
if (ioctl(fileno(stdin), FIONREAD, &n) < 0) { |
331 |
#else |
332 |
if (1) { |
333 |
#endif |
334 |
if (fcntl(fileno(stdin), F_SETFL, FNDELAY) < 0) { |
335 |
eputs("cannot change input mode\n"); |
336 |
quit(1); |
337 |
} |
338 |
inpcheck = IC_READ; |
339 |
} else |
340 |
x11_driver.inpready += n; |
341 |
} |
342 |
if (inpcheck == IC_READ) { |
343 |
n = read(fileno(stdin), buf, sizeof(buf)-1); |
344 |
if (n > 0) { |
345 |
buf[n] = '\0'; |
346 |
tocombuf(buf, &x11_driver); |
347 |
} |
348 |
} |
349 |
#endif |
350 |
} |
351 |
|
352 |
|
353 |
static void |
354 |
x11_comin( /* read in a command line */ |
355 |
char *inp, |
356 |
char *prompt |
357 |
) |
358 |
{ |
359 |
if (prompt != NULL) { |
360 |
x11_flush(); /* make sure we get everything */ |
361 |
if (fromcombuf(inp, &x11_driver)) |
362 |
return; |
363 |
xt_puts(prompt, comline); |
364 |
} |
365 |
xt_cursor(comline, TBLKCURS); |
366 |
editline(inp, x11_getc, x11_comout); |
367 |
xt_cursor(comline, TNOCURS); |
368 |
} |
369 |
|
370 |
|
371 |
static void |
372 |
x11_comout( /* output a string to command line */ |
373 |
char *outp |
374 |
) |
375 |
{ |
376 |
if (comline == NULL || outp == NULL || !outp[0]) |
377 |
return; |
378 |
xt_puts(outp, comline); |
379 |
if (outp[strlen(outp)-1] == '\n') |
380 |
XFlush(ourdisplay); |
381 |
} |
382 |
|
383 |
|
384 |
static void |
385 |
x11_errout( /* output an error message */ |
386 |
char *msg |
387 |
) |
388 |
{ |
389 |
eputs(msg); /* send to stderr also! */ |
390 |
x11_comout(msg); |
391 |
} |
392 |
|
393 |
|
394 |
static void |
395 |
std_comin( /* read in command line from stdin */ |
396 |
char *inp, |
397 |
char *prompt |
398 |
) |
399 |
{ |
400 |
if (prompt != NULL) { |
401 |
if (fromcombuf(inp, &x11_driver)) |
402 |
return; |
403 |
if (!x11_driver.inpready) |
404 |
std_comout(prompt); |
405 |
} |
406 |
#ifdef FNDELAY |
407 |
if (inpcheck == IC_READ) { /* turn off FNDELAY */ |
408 |
if (fcntl(fileno(stdin), F_SETFL, 0) < 0) { |
409 |
eputs("cannot change input mode\n"); |
410 |
quit(1); |
411 |
} |
412 |
inpcheck = IC_IOCTL; |
413 |
} |
414 |
#endif |
415 |
if (gets(inp) == NULL) { |
416 |
strcpy(inp, "quit"); |
417 |
return; |
418 |
} |
419 |
x11_driver.inpready -= strlen(inp) + 1; |
420 |
if (x11_driver.inpready < 0) |
421 |
x11_driver.inpready = 0; |
422 |
} |
423 |
|
424 |
|
425 |
static void |
426 |
std_comout( /* write out string to stdout */ |
427 |
char *outp |
428 |
) |
429 |
{ |
430 |
fputs(outp, stdout); |
431 |
fflush(stdout); |
432 |
} |
433 |
|
434 |
|
435 |
static int |
436 |
x11_getcur( /* get cursor position */ |
437 |
int *xp, |
438 |
int *yp |
439 |
) |
440 |
{ |
441 |
while (XGrabPointer(ourdisplay, gwind, True, ButtonPressMask, |
442 |
GrabModeAsync, GrabModeAsync, None, pickcursor, |
443 |
CurrentTime) != GrabSuccess) |
444 |
sleep(2); |
445 |
|
446 |
do |
447 |
getevent(); |
448 |
while (c_last <= c_first && levptr(XEvent)->type != ButtonPress); |
449 |
*xp = levptr(XButtonPressedEvent)->x; |
450 |
*yp = gheight-1 - levptr(XButtonPressedEvent)->y; |
451 |
XUngrabPointer(ourdisplay, CurrentTime); |
452 |
XFlush(ourdisplay); /* insure release */ |
453 |
if (c_last > c_first) /* key pressed */ |
454 |
return(x11_getc()); |
455 |
/* button pressed */ |
456 |
if (levptr(XButtonPressedEvent)->button == Button1) |
457 |
return(MB1); |
458 |
if (levptr(XButtonPressedEvent)->button == Button2) |
459 |
return(MB2); |
460 |
if (levptr(XButtonPressedEvent)->button == Button3) |
461 |
return(MB3); |
462 |
return(ABORT); |
463 |
} |
464 |
|
465 |
|
466 |
static void |
467 |
xnewcolr( /* enter a color into hardware table */ |
468 |
int ndx, |
469 |
int r, |
470 |
int g, |
471 |
int b |
472 |
) |
473 |
{ |
474 |
XColor xcolor; |
475 |
|
476 |
xcolor.pixel = pixval[ndx]; |
477 |
xcolor.red = r << 8; |
478 |
xcolor.green = g << 8; |
479 |
xcolor.blue = b << 8; |
480 |
xcolor.flags = DoRed|DoGreen|DoBlue; |
481 |
|
482 |
XStoreColor(ourdisplay, ourmap, &xcolor); |
483 |
} |
484 |
|
485 |
|
486 |
static int |
487 |
getpixels(void) /* get the color map */ |
488 |
{ |
489 |
XColor thiscolor; |
490 |
register int i, j; |
491 |
|
492 |
if (ncolors > 0) |
493 |
return(ncolors); |
494 |
if (ourvinfo.visual == DefaultVisual(ourdisplay,ourscreen)) { |
495 |
ourmap = DefaultColormap(ourdisplay,ourscreen); |
496 |
goto loop; |
497 |
} |
498 |
newmap: |
499 |
ourmap = XCreateColormap(ourdisplay,gwind,ourvinfo.visual,AllocNone); |
500 |
loop: |
501 |
for (ncolors = ourvinfo.colormap_size; |
502 |
ncolors > ourvinfo.colormap_size/3; |
503 |
ncolors = ncolors*.937) { |
504 |
pixval = (unsigned long *)malloc(ncolors*sizeof(unsigned long)); |
505 |
if (pixval == NULL) |
506 |
return(ncolors = 0); |
507 |
if (XAllocColorCells(ourdisplay,ourmap,0,NULL,0,pixval,ncolors)) |
508 |
break; |
509 |
free((void *)pixval); |
510 |
pixval = NULL; |
511 |
} |
512 |
if (pixval == NULL) { |
513 |
if (ourmap == DefaultColormap(ourdisplay,ourscreen)) |
514 |
goto newmap; /* try it with our map */ |
515 |
else |
516 |
return(ncolors = 0); /* failed */ |
517 |
} |
518 |
if (ourmap != DefaultColormap(ourdisplay,ourscreen)) |
519 |
for (i = 0; i < ncolors; i++) { /* reset black and white */ |
520 |
if (pixval[i] != ourblack && pixval[i] != ourwhite) |
521 |
continue; |
522 |
thiscolor.pixel = pixval[i]; |
523 |
thiscolor.flags = DoRed|DoGreen|DoBlue; |
524 |
XQueryColor(ourdisplay, |
525 |
DefaultColormap(ourdisplay,ourscreen), |
526 |
&thiscolor); |
527 |
XStoreColor(ourdisplay, ourmap, &thiscolor); |
528 |
for (j = i; j+1 < ncolors; j++) |
529 |
pixval[j] = pixval[j+1]; |
530 |
ncolors--; |
531 |
i--; |
532 |
} |
533 |
XSetWindowColormap(ourdisplay, gwind, ourmap); |
534 |
return(ncolors); |
535 |
} |
536 |
|
537 |
|
538 |
static void |
539 |
freepixels(void) /* free our pixels */ |
540 |
{ |
541 |
if (ncolors == 0) |
542 |
return; |
543 |
XFreeColors(ourdisplay,ourmap,pixval,ncolors,0L); |
544 |
free((void *)pixval); |
545 |
pixval = NULL; |
546 |
ncolors = 0; |
547 |
if (ourmap != DefaultColormap(ourdisplay,ourscreen)) |
548 |
XFreeColormap(ourdisplay, ourmap); |
549 |
ourmap = 0; |
550 |
} |
551 |
|
552 |
|
553 |
static unsigned long |
554 |
true_pixel( /* return true pixel value for color */ |
555 |
COLOR col |
556 |
) |
557 |
{ |
558 |
unsigned long rval; |
559 |
BYTE rgb[3]; |
560 |
|
561 |
map_color(rgb, col); |
562 |
rval = ourvinfo.red_mask*rgb[RED]/255 & ourvinfo.red_mask; |
563 |
rval |= ourvinfo.green_mask*rgb[GRN]/255 & ourvinfo.green_mask; |
564 |
rval |= ourvinfo.blue_mask*rgb[BLU]/255 & ourvinfo.blue_mask; |
565 |
return(rval); |
566 |
} |
567 |
|
568 |
|
569 |
static int |
570 |
x11_getc(void) /* get a command character */ |
571 |
{ |
572 |
while (c_last <= c_first) { |
573 |
c_first = c_last = 0; /* reset */ |
574 |
getevent(); /* wait for key */ |
575 |
} |
576 |
x11_driver.inpready--; |
577 |
return(c_queue[c_first++]); |
578 |
} |
579 |
|
580 |
|
581 |
static void |
582 |
getevent(void) /* get next event */ |
583 |
{ |
584 |
XNextEvent(ourdisplay, levptr(XEvent)); |
585 |
switch (levptr(XEvent)->type) { |
586 |
case ConfigureNotify: |
587 |
resizewindow(levptr(XConfigureEvent)); |
588 |
break; |
589 |
case UnmapNotify: |
590 |
mapped = 0; |
591 |
freepixels(); |
592 |
break; |
593 |
case MapNotify: |
594 |
if (ourvinfo.class == PseudoColor || |
595 |
ourvinfo.class == GrayScale) { |
596 |
if (getpixels() == 0) |
597 |
eputs("cannot allocate colors\n"); |
598 |
else |
599 |
new_ctab(ncolors); |
600 |
} |
601 |
mapped = 1; |
602 |
break; |
603 |
case Expose: |
604 |
fixwindow(levptr(XExposeEvent)); |
605 |
break; |
606 |
case KeyPress: |
607 |
getkey(levptr(XKeyPressedEvent)); |
608 |
break; |
609 |
case ButtonPress: |
610 |
break; |
611 |
} |
612 |
} |
613 |
|
614 |
|
615 |
static void |
616 |
getkey( /* get input key */ |
617 |
register XKeyPressedEvent *ekey |
618 |
) |
619 |
{ |
620 |
register int n; |
621 |
|
622 |
n = XLookupString(ekey, c_queue+c_last, sizeof(c_queue)-c_last, |
623 |
NULL, NULL); |
624 |
c_last += n; |
625 |
x11_driver.inpready += n; |
626 |
} |
627 |
|
628 |
|
629 |
static void |
630 |
fixwindow( /* repair damage to window */ |
631 |
register XExposeEvent *eexp |
632 |
) |
633 |
{ |
634 |
char buf[80]; |
635 |
|
636 |
if (eexp->window == gwind) { |
637 |
sprintf(buf, "repaint %d %d %d %d\n", |
638 |
eexp->x, gheight - eexp->y - eexp->height, |
639 |
eexp->x + eexp->width, gheight - eexp->y); |
640 |
tocombuf(buf, &x11_driver); |
641 |
} else if (eexp->window == comline->w) { |
642 |
if (eexp->count == 0) |
643 |
xt_redraw(comline); |
644 |
} |
645 |
} |
646 |
|
647 |
|
648 |
static void |
649 |
resizewindow( /* resize window */ |
650 |
register XConfigureEvent *ersz |
651 |
) |
652 |
{ |
653 |
if (ersz->width == gwidth && ersz->height-comheight == gheight) |
654 |
return; |
655 |
|
656 |
gwidth = ersz->width; |
657 |
gheight = ersz->height-comheight; |
658 |
x11_driver.xsiz = gwidth < MINWIDTH ? MINWIDTH : gwidth; |
659 |
x11_driver.ysiz = gheight < MINHEIGHT ? MINHEIGHT : gheight; |
660 |
|
661 |
tocombuf("new\n", &x11_driver); |
662 |
} |