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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.23 by root, Wed Jan 11 00:59:58 2006 UTC vs.
Revision 1.52 by root, Sat Feb 18 15:48:23 2006 UTC

… …
26 26
27#include <unistd.h> 27#include <unistd.h>
28#include <fcntl.h> 28#include <fcntl.h>
29 29
30#include <sys/utsname.h> 30#include <sys/utsname.h>
31
32#ifndef NO_SLOW_LINK_SUPPORT
33# include <sys/socket.h> 31#include <sys/socket.h>
34# include <sys/un.h> 32#include <sys/un.h>
33
34#if XFT
35# include <X11/extensions/Xrender.h>
36#endif
37
38const char *const xa_names[] =
39{
40 "TEXT",
41 "COMPOUND_TEXT",
42 "UTF8_STRING",
43 "MULTIPLE",
44 "TARGETS",
45 "TIMESTAMP",
46 "VT_SELECTION",
47 "INCR",
48 "WM_PROTOCOLS",
49 "WM_DELETE_WINDOW",
50 "CLIPBOARD",
51 "AVERAGE_WIDTH",
52 "WEIGHT_NAME",
53 "SLANT",
54 "CHARSET_REGISTRY",
55 "CHARSET_ENCODING",
56#if ENABLE_FRILLS
57 "_MOTIF_WM_HINTS",
58#endif
59#if ENABLE_EWMH
60 "_NET_WM_PID",
61 "_NET_WM_NAME",
62 "_NET_WM_ICON_NAME",
63 "_NET_WM_PING",
64#endif
65#if USE_XIM
66 "WM_LOCALE_NAME",
67 "XIM_SERVERS",
68#endif
69#ifdef TRANSPARENT
70 "_XROOTPMAP_ID",
71 "ESETROOT_PMAP_ID",
72#endif
73#if ENABLE_XEMBED
74 "_XEMBED",
75 "_XEMBED_INFO",
76#endif
77#if !ENABLE_MINIMAL
78 "SCREEN_RESOURCES",
79 "XDCCC_LINEAR_RGB_CORRECTION",
80 "XDCCC_LINEAR_RGB_MATRICES",
81 "WM_COLORMAP_WINDOWS",
82 "WM_STATE",
83 "cursor",
84# if USE_XIM
85 "TRANSPORT",
86 "LOCALES",
87 "_XIM_PROTOCOL",
88 "_XIM_XCONNECT",
89 "_XIM_MOREDATA",
35#endif 90# endif
91#endif
92};
93
94/////////////////////////////////////////////////////////////////////////////
36 95
37refcounted::refcounted (const char *id) 96refcounted::refcounted (const char *id)
38{ 97{
39 this->id = strdup (id); 98 this->id = strdup (id);
40} 99}
… …
93} 152}
94 153
95///////////////////////////////////////////////////////////////////////////// 154/////////////////////////////////////////////////////////////////////////////
96 155
97#ifdef USE_XIM 156#ifdef USE_XIM
157
98static void 158static void
99#if XIMCB_PROTO_BROKEN 159#if XIMCB_PROTO_BROKEN
100im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3) 160im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3)
101#else 161#else
102im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3) 162im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3)
… …
114bool 174bool
115rxvt_xim::ref_init () 175rxvt_xim::ref_init ()
116{ 176{
117 display = GET_R->display; //HACK: TODO 177 display = GET_R->display; //HACK: TODO
118 178
119 xim = XOpenIM (display->display, NULL, NULL, NULL); 179 xim = XOpenIM (display->dpy, 0, 0, 0);
120 180
121 if (!xim) 181 if (!xim)
122 return false; 182 return false;
123 183
124 XIMCallback ximcallback; 184 XIMCallback ximcallback;
125 ximcallback.client_data = (XPointer)this; 185 ximcallback.client_data = (XPointer)this;
126 ximcallback.callback = im_destroy_cb; 186 ximcallback.callback = im_destroy_cb;
127 187
128 XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL); 188 XSetIMValues (xim, XNDestroyCallback, &ximcallback, 0);
129 189
130 return true; 190 return true;
131} 191}
132 192
133rxvt_xim::~rxvt_xim () 193rxvt_xim::~rxvt_xim ()
134{ 194{
135 if (xim) 195 if (xim)
136 XCloseIM (xim); 196 XCloseIM (xim);
137} 197}
198
138#endif 199#endif
200
201/////////////////////////////////////////////////////////////////////////////
202
203#if XFT
204rxvt_drawable::~rxvt_drawable ()
205{
206 if (xftdrawable)
207 XftDrawDestroy (xftdrawable);
208}
209
210rxvt_drawable::operator XftDraw *()
211{
212 if (!xftdrawable)
213 xftdrawable = XftDrawCreate (screen->dpy, drawable, screen->visual, screen->cmap);
214
215 return xftdrawable;
216}
217#endif
218
219/////////////////////////////////////////////////////////////////////////////
220
221#if XFT
222
223// not strictly necessary as it is only used with superclass of zero_initialised
224rxvt_screen::rxvt_screen ()
225: scratch_area (0)
226{
227}
228
229rxvt_drawable &rxvt_screen::scratch_drawable (int w, int h)
230{
231 // it's actually faster to re-allocate every time. don't ask me
232 // why, but its likely no big deal there are no roundtrips
233 // (I think/hope).
234 if (!scratch_area || w > scratch_w || h > scratch_h || 1/*D*/)
235 {
236 if (scratch_area)
237 {
238 XFreePixmap (dpy, scratch_area->drawable);
239 delete scratch_area;
240 }
241
242 Pixmap pm = XCreatePixmap (dpy, RootWindowOfScreen (ScreenOfDisplay (dpy, display->screen)),
243 scratch_w = w, scratch_h = h, depth);
244
245 scratch_area = new rxvt_drawable (this, pm);
246 }
247
248 return *scratch_area;
249}
250
251#endif
252
253void
254rxvt_screen::set (rxvt_display *disp)
255{
256 display = disp;
257 dpy = disp->dpy;
258
259 Screen *screen = ScreenOfDisplay (dpy, disp->screen);
260
261 depth = DefaultDepthOfScreen (screen);
262 visual = DefaultVisualOfScreen (screen);
263 cmap = DefaultColormapOfScreen (screen);
264}
265
266void
267rxvt_screen::set (rxvt_display *disp, int bitdepth)
268{
269 set (disp);
270
271#if XFT
272 XVisualInfo vinfo;
273
274 if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo))
275 {
276 depth = bitdepth;
277 visual = vinfo.visual;
278 cmap = XCreateColormap (dpy, disp->root, visual, AllocNone);
279 }
280#endif
281}
282
283void
284rxvt_screen::clear ()
285{
286#if XFT
287 if (scratch_area)
288 {
289 XFreePixmap (dpy, scratch_area->drawable);
290 delete scratch_area;
291 }
292#endif
293
294 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (dpy, display->screen)))
295 XFreeColormap (dpy, cmap);
296}
139 297
140///////////////////////////////////////////////////////////////////////////// 298/////////////////////////////////////////////////////////////////////////////
141 299
142rxvt_display::rxvt_display (const char *id) 300rxvt_display::rxvt_display (const char *id)
143: refcounted (id) 301: refcounted (id)
… …
145, selection_owner (0) 303, selection_owner (0)
146{ 304{
147} 305}
148 306
149XrmDatabase 307XrmDatabase
150rxvt_display::get_resources () 308rxvt_display::get_resources (bool refresh)
151{ 309{
152 char *homedir = (char *)getenv ("HOME"); 310 char *homedir = (char *)getenv ("HOME");
153 char fname[1024]; 311 char fname[1024];
154 312
155 /* 313 /*
156 * get resources using the X library function 314 * get resources using the X library function
157 */ 315 */
158 char *displayResource, *xe; 316 char *displayResource, *xe;
159 XrmDatabase database, rdb1; 317 XrmDatabase rdb1, database = 0;
160
161 database = NULL;
162 318
163 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20 319 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20
164 320
165 // 6. System wide per application default file. 321 // 6. System wide per application default file.
166 322
… …
176 // 5. User's per application default file. 332 // 5. User's per application default file.
177 // none 333 // none
178 334
179 // 4. User's defaults file. 335 // 4. User's defaults file.
180 /* Get any Xserver defaults */ 336 /* Get any Xserver defaults */
337 if (refresh)
338 {
339 // fucking xlib keeps a copy of the rm string
340 Atom actual_type;
341 int actual_format;
342 unsigned long nitems, nremaining;
343 char *val = 0;
344
345#if XLIB_ILLEGAL_ACCESS
346 if (dpy->xdefaults)
347 XFree (dpy->xdefaults);
348#endif
349
350 if (XGetWindowProperty (dpy, root, XA_RESOURCE_MANAGER,
351 0L, 100000000L, False,
352 XA_STRING, &actual_type, &actual_format,
353 &nitems, &nremaining,
354 (unsigned char **)&val) == Success
355 && actual_type == XA_STRING
356 && actual_format == 8)
357 displayResource = val;
358 else
359 {
360 displayResource = 0;
361 if (val)
362 XFree(val);
363 }
364
365#if XLIB_ILLEGAL_ACCESS
366 dpy->xdefaults = displayResource;
367#endif
368 }
369 else
181 displayResource = XResourceManagerString (display); 370 displayResource = XResourceManagerString (dpy);
182 371
183 if (displayResource != NULL) 372 if (displayResource)
184 { 373 {
185 if ((rdb1 = XrmGetStringDatabase (displayResource))) 374 if ((rdb1 = XrmGetStringDatabase (displayResource)))
186 XrmMergeDatabases (rdb1, &database); 375 XrmMergeDatabases (rdb1, &database);
187 } 376 }
188 else if (homedir) 377 else if (homedir)
… …
191 380
192 if ((rdb1 = XrmGetFileDatabase (fname))) 381 if ((rdb1 = XrmGetFileDatabase (fname)))
193 XrmMergeDatabases (rdb1, &database); 382 XrmMergeDatabases (rdb1, &database);
194 } 383 }
195 384
385#if !XLIB_ILLEGAL_ACCESS
386 if (refresh && displayResource)
387 XFree (displayResource);
388#endif
389
196 /* Get screen specific resources */ 390 /* Get screen specific resources */
197 displayResource = XScreenResourceString (ScreenOfDisplay (display, screen)); 391 displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen));
198 392
199 if (displayResource != NULL) 393 if (displayResource)
200 { 394 {
201 if ((rdb1 = XrmGetStringDatabase (displayResource))) 395 if ((rdb1 = XrmGetStringDatabase (displayResource)))
202 /* Merge with screen-independent resources */ 396 /* Merge with screen-independent resources */
203 XrmMergeDatabases (rdb1, &database); 397 XrmMergeDatabases (rdb1, &database);
204 398
… …
232 if (id[0] == ':') 426 if (id[0] == ':')
233 { 427 {
234 val = rxvt_malloc (5 + strlen (id) + 1); 428 val = rxvt_malloc (5 + strlen (id) + 1);
235 strcpy (val, "unix/"); 429 strcpy (val, "unix/");
236 strcat (val, id); 430 strcat (val, id);
237 display = XOpenDisplay (val); 431 dpy = XOpenDisplay (val);
238 free (val); 432 free (val);
239 } 433 }
240 else 434 else
241#endif 435#endif
242 display = 0; 436 dpy = 0;
243 437
244 if (!display) 438 if (!dpy)
245 display = XOpenDisplay (id); 439 dpy = XOpenDisplay (id);
246 440
247 if (!display) 441 if (!dpy)
248 return false; 442 return false;
249 443
250 screen = DefaultScreen (display); 444 screen = DefaultScreen (dpy);
251 root = DefaultRootWindow (display); 445 root = DefaultRootWindow (dpy);
252 visual = DefaultVisual (display, screen);
253 cmap = DefaultColormap (display, screen);
254 depth = DefaultDepth (display, screen);
255 446
447 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
448 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
449
256 XrmSetDatabase (display, get_resources ()); 450 XrmSetDatabase (dpy, get_resources (false));
257 451
258#ifdef POINTER_BLANK 452#ifdef POINTER_BLANK
259 XColor blackcolour; 453 XColor blackcolour;
260 blackcolour.red = 0; 454 blackcolour.red = 0;
261 blackcolour.green = 0; 455 blackcolour.green = 0;
262 blackcolour.blue = 0; 456 blackcolour.blue = 0;
263 Font f = XLoadFont (display, "fixed"); 457 Font f = XLoadFont (dpy, "fixed");
264 blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', 458 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
265 &blackcolour, &blackcolour); 459 &blackcolour, &blackcolour);
266 XUnloadFont (display, f); 460 XUnloadFont (dpy, f);
267#endif 461#endif
268 462
269#ifdef PREFER_24BIT
270 /*
271 * If depth is not 24, look for a 24bit visual.
272 */
273 if (depth != 24)
274 {
275 XVisualInfo vinfo;
276
277 if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo))
278 {
279 depth = 24;
280 visual = vinfo.visual;
281 cmap = XCreateColormap (display,
282 RootWindow (display, screen),
283 visual, AllocNone);
284 }
285 }
286#endif
287
288 int fd = XConnectionNumber (display); 463 int fd = XConnectionNumber (dpy);
289 464
290#ifndef NO_SLOW_LINK_SUPPORT
291 // try to detect wether we have a local connection. 465 // try to detect wether we have a local connection.
292 // assume unix domains socket == local, everything else not 466 // assume unix domains socket == local, everything else not
293 // TODO: might want to check for inet/127.0.0.1 467 // TODO: might want to check for inet/127.0.0.1
294 is_local = 0; 468 is_local = 0;
295 sockaddr_un sa; 469 sockaddr_un sa;
296 socklen_t sl = sizeof (sa); 470 socklen_t sl = sizeof (sa);
297 471
298 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 472 if (!getsockname (fd, (sockaddr *)&sa, &sl))
299 is_local = sa.sun_family == AF_LOCAL; 473 is_local = sa.sun_family == AF_LOCAL;
300#endif
301 474
302 x_ev.start (fd, EVENT_READ); 475 x_ev.start (fd, EVENT_READ);
303 fcntl (fd, F_SETFD, FD_CLOEXEC); 476 fcntl (fd, F_SETFD, FD_CLOEXEC);
304 477
305 XSelectInput (display, root, PropertyChangeMask); 478 XSelectInput (dpy, root, PropertyChangeMask);
306#ifdef USE_XIM
307 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0);
308#endif
309 479
310 flush (); 480 flush ();
311 481
312 return true; 482 return true;
313} 483}
314 484
315void 485void
316rxvt_display::ref_next () 486rxvt_display::ref_next ()
317{ 487{
318 // TODO: somehow check wether the database files/resources changed 488 // TODO: somehow check wether the database files/resources changed
319 // before re-loading/parsing 489 // before affording re-loading/parsing
320 XrmDestroyDatabase (XrmGetDatabase (display)); 490 XrmDestroyDatabase (XrmGetDatabase (dpy));
321 XrmSetDatabase (display, get_resources ()); 491 XrmSetDatabase (dpy, get_resources (true));
322} 492}
323 493
324rxvt_display::~rxvt_display () 494rxvt_display::~rxvt_display ()
325{ 495{
326 if (!display) 496 if (!dpy)
327 return; 497 return;
328 498
329#ifdef POINTER_BLANK 499#ifdef POINTER_BLANK
330 XFreeCursor (display, blank_cursor); 500 XFreeCursor (dpy, blank_cursor);
331#endif 501#endif
332 x_ev.stop (); 502 x_ev.stop ();
333#ifdef USE_XIM 503#ifdef USE_XIM
334 xims.clear (); 504 xims.clear ();
335#endif 505#endif
336 XCloseDisplay (display); 506 XCloseDisplay (dpy);
337} 507}
338 508
339#ifdef USE_XIM 509#ifdef USE_XIM
340void rxvt_display::im_change_cb () 510void rxvt_display::im_change_cb ()
341{ 511{
… …
349 // registers, as xlib crashes due to a race otherwise. 519 // registers, as xlib crashes due to a race otherwise.
350 Atom actual_type, *atoms; 520 Atom actual_type, *atoms;
351 int actual_format; 521 int actual_format;
352 unsigned long nitems, bytes_after; 522 unsigned long nitems, bytes_after;
353 523
354 if (XGetWindowProperty (display, root, xa_xim_servers, 0L, 1000000L, 524 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
355 False, XA_ATOM, &actual_type, &actual_format, 525 False, XA_ATOM, &actual_type, &actual_format,
356 &nitems, &bytes_after, (unsigned char **)&atoms) 526 &nitems, &bytes_after, (unsigned char **)&atoms)
357 != Success ) 527 != Success )
358 return; 528 return;
359 529
360 if (actual_type == XA_ATOM && actual_format == 32) 530 if (actual_type == XA_ATOM && actual_format == 32)
361 for (int i = 0; i < nitems; i++) 531 for (int i = 0; i < nitems; i++)
362 if (XGetSelectionOwner (display, atoms[i])) 532 if (XGetSelectionOwner (dpy, atoms[i]))
363 { 533 {
364 im_change_cb (); 534 im_change_cb ();
365 break; 535 break;
366 } 536 }
367 537
… …
372void rxvt_display::x_cb (io_watcher &w, short revents) 542void rxvt_display::x_cb (io_watcher &w, short revents)
373{ 543{
374 do 544 do
375 { 545 {
376 XEvent xev; 546 XEvent xev;
377 XNextEvent (display, &xev); 547 XNextEvent (dpy, &xev);
378 548
379#ifdef USE_XIM 549#ifdef USE_XIM
380 if (!XFilterEvent (&xev, None)) 550 if (!XFilterEvent (&xev, None))
381 { 551 {
382 if (xev.type == PropertyNotify 552 if (xev.type == PropertyNotify
383 && xev.xany.window == root 553 && xev.xany.window == root
384 && xev.xproperty.atom == xa_xim_servers) 554 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
385 im_change_check (); 555 im_change_check ();
386#endif 556#endif
387 for (int i = xw.size (); i--; ) 557 for (int i = xw.size (); i--; )
388 { 558 {
389 if (!xw[i]) 559 if (!xw[i])
… …
393 } 563 }
394#ifdef USE_XIM 564#ifdef USE_XIM
395 } 565 }
396#endif 566#endif
397 } 567 }
398 while (XEventsQueued (display, QueuedAlready)); 568 while (XEventsQueued (dpy, QueuedAlready));
399 569
400 XFlush (display); 570 XFlush (dpy);
401} 571}
402 572
403void rxvt_display::flush () 573void rxvt_display::flush ()
404{ 574{
405 if (XEventsQueued (display, QueuedAlready)) 575 if (XEventsQueued (dpy, QueuedAlready))
406 x_cb (x_ev, EVENT_READ); 576 x_cb (x_ev, EVENT_READ);
407 577
408 XFlush (display); 578 XFlush (dpy);
409} 579}
410 580
411void rxvt_display::reg (xevent_watcher *w) 581void rxvt_display::reg (xevent_watcher *w)
412{ 582{
413 xw.push_back (w); 583 xw.push_back (w);
… …
427 597
428 selection_owner = owner; 598 selection_owner = owner;
429} 599}
430 600
431#ifdef USE_XIM 601#ifdef USE_XIM
602
432void rxvt_display::reg (im_watcher *w) 603void rxvt_display::reg (im_watcher *w)
433{ 604{
434 imw.push_back (w); 605 imw.push_back (w);
435} 606}
436 607
… …
460 return xim; 631 return xim;
461} 632}
462 633
463void rxvt_display::put_xim (rxvt_xim *xim) 634void rxvt_display::put_xim (rxvt_xim *xim)
464{ 635{
465#if XLIB_IS_RACEFREE 636# if XLIB_IS_RACEFREE
466 xims.put (xim); 637 xims.put (xim);
467#endif 638# endif
468} 639}
640
469#endif 641#endif
470 642
471Atom rxvt_display::atom (const char *name) 643Atom rxvt_display::atom (const char *name)
472{ 644{
473 return XInternAtom (display, name, False); 645 return XInternAtom (dpy, name, False);
474} 646}
475 647
476///////////////////////////////////////////////////////////////////////////// 648/////////////////////////////////////////////////////////////////////////////
477 649
478template class refcache<rxvt_display>; 650template class refcache<rxvt_display>;
479refcache<rxvt_display> displays; 651refcache<rxvt_display> displays;
480 652
481///////////////////////////////////////////////////////////////////////////// 653/////////////////////////////////////////////////////////////////////////////
482 654
483bool 655bool
484rxvt_color::set (rxvt_display *display, Pixel p) 656rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
485{ 657{
486#if XFT 658#if XFT
487 XColor xc; 659 XRenderPictFormat *format;
488 660
489 xc.pixel = p; 661 // FUCKING Xft gets it wrong, of course, so work around it.
490 if (!XQueryColor (display->display, display->cmap, &xc)) 662 // Transparency users should eat shit and die, and then
491 return false; 663 // XRenderQueryPictIndexValues themselves plenty.
664 if ((screen->visual->c_class == TrueColor)
665 && (format = XRenderFindVisualFormat (screen->dpy, screen->visual)))
666 {
667 // the fun lies in doing everything manually...
668 c.color.red = color.r;
669 c.color.green = color.g;
670 c.color.blue = color.b;
671 c.color.alpha = color.a;
492 672
673 c.pixel = ((color.r * format->direct.redMask / rgba::MAX_CC) << format->direct.red )
674 | ((color.g * format->direct.greenMask / rgba::MAX_CC) << format->direct.green)
675 | ((color.b * format->direct.blueMask / rgba::MAX_CC) << format->direct.blue )
676 | ((color.a * format->direct.alphaMask / rgba::MAX_CC) << format->direct.alpha);
677
678 return true;
679 }
680 else
681 {
493 XRenderColor d; 682 XRenderColor d;
494 683
495 d.red = xc.red; 684 d.red = color.r;
496 d.green = xc.green; 685 d.green = color.g;
497 d.blue = xc.blue; 686 d.blue = color.b;
498 d.alpha = 0xffff; 687 d.alpha = color.a;
499 688
500 return 689 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
501 XftColorAllocValue (display->display, 690 }
502 display->visual,
503 display->cmap,
504 &d, &c);
505#else 691#else
506 this->p = p; 692 c.red = color.r;
507#endif 693 c.green = color.g;
694 c.blue = color.b;
508 695
696 if (screen->visual->c_class == TrueColor)
697 {
698 c.pixel = (color.r * (screen->visual->red_mask >> ctz (screen->visual->red_mask ))
699 / rgba::MAX_CC) << ctz (screen->visual->red_mask )
700 | (color.g * (screen->visual->green_mask >> ctz (screen->visual->green_mask))
701 / rgba::MAX_CC) << ctz (screen->visual->green_mask)
702 | (color.b * (screen->visual->blue_mask >> ctz (screen->visual->blue_mask ))
703 / rgba::MAX_CC) << ctz (screen->visual->blue_mask );
704
705 return true;
706 }
707 else if (XAllocColor (screen->dpy, screen->cmap, &c))
509 return true; 708 return true;
709 else
710 c.pixel = (color.r + color.g + color.b) > 128*3
711 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
712 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
713#endif
714
715 return false;
510} 716}
511 717
512bool 718bool
513rxvt_color::set (rxvt_display *display, const char *name) 719rxvt_color::set (rxvt_screen *screen, const char *name)
720{
721 rgba c;
722 char eos;
723 int skip;
724
725 // parse the nonstandard "[alphapercent]" prefix
726 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
727 {
728 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
729 name += skip;
730 }
731 else
732 c.a = rgba::MAX_CC;
733
734 // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format
735 if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos))
736 {
737 XColor xc, xc_exact;
738
739 if (XParseColor (screen->dpy, screen->cmap, name, &xc))
740 {
741 c.r = xc.red;
742 c.g = xc.green;
743 c.b = xc.blue;
744 }
745 else
746 {
747 c.r = 0xffff;
748 c.g = 0x6969;
749 c.b = 0xb4b4;
750
751 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
752 }
753 }
754
755 return set (screen, c);
756}
757
758bool
759rxvt_color::set (rxvt_screen *screen, const rgba &color)
760{
761 bool got = alloc (screen, color);
762
763#if !ENABLE_MINIMAL
764 int cmap_size = screen->visual->map_entries;
765
766 if (!got
767 && screen->visual->c_class == PseudoColor
768 && cmap_size < 4096)
769 {
770 XColor *colors = new XColor [screen->visual->map_entries];
771
772 for (int i = 0; i < cmap_size; i++)
773 colors [i].pixel = i;
774
775 // many kilobytes transfer per colour, but pseudocolor isn't worth
776 // many extra optimisations.
777 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
778
779 int diff = 0x7fffffffUL;
780 XColor *best = colors;
781
782 for (int i = 0; i < cmap_size; i++)
783 {
784 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
785 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
786 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
787
788 if (d < diff)
789 {
790 diff = d;
791 best = colors + i;
792 }
793 }
794
795 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
796 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
797
798 got = alloc (screen, rgba (best->red, best->green, best->blue));
799
800 delete colors;
801 }
802#endif
803
804 return got;
805}
806
807void
808rxvt_color::get (rgba &color)
514{ 809{
515#if XFT 810#if XFT
516 return XftColorAllocName (display->display, display->visual, display->cmap, 811 color.r = c.color.red;
517 name, &c); 812 color.g = c.color.green;
813 color.b = c.color.blue;
814 color.a = c.color.alpha;
518#else 815#else
519 XColor xc; 816 color.r = c.red;
520 817 color.g = c.green;
521 if (XParseColor (display->display, display->cmap, name, &xc)) 818 color.b = c.blue;
522 return set (display, xc.red, xc.green, xc.blue); 819 color.a = rgba::MAX_CC;
523
524 return false;
525#endif 820#endif
526} 821}
527 822
528bool 823void
529rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) 824rxvt_color::get (XColor &color)
530{ 825{
531 XColor xc; 826 rgba c;
827 get (c);
532 828
533 xc.red = cr; 829 color.red = c.r;
534 xc.green = cg; 830 color.green = c.g;
535 xc.blue = cb; 831 color.blue = c.b;
536 xc.flags = DoRed | DoGreen | DoBlue; 832 color.pixel = (Pixel)*this;
537
538 if (XAllocColor (display->display, display->cmap, &xc))
539 return set (display, xc.pixel);
540
541 return false;
542} 833}
543 834
544void 835void
545rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) 836rxvt_color::free (rxvt_screen *screen)
546{ 837{
547#if XFT 838#if XFT
548 cr = c.color.red; 839 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
549 cg = c.color.green;
550 cb = c.color.blue;
551#else 840#else
552 XColor c; 841 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
553
554 c.pixel = p;
555 XQueryColor (display->display, display->cmap, &c);
556
557 cr = c.red;
558 cg = c.green;
559 cb = c.blue;
560#endif 842#endif
561} 843}
562 844
563void 845void
564rxvt_color::free (rxvt_display *display) 846rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
565{ 847{
566#if XFT 848 rgba c;
567 XftColorFree (display->display, display->visual, display->cmap, &c); 849 get (c);
568#else
569 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
570#endif
571}
572 850
573rxvt_color 851 result.set (
574rxvt_color::fade (rxvt_display *display, int percent) 852 screen,
575{ 853 rgba (
576 percent = 100 - percent; 854 lerp (c.r, to.r, percent),
577 855 lerp (c.g, to.g, percent),
578 unsigned short cr, cg, cb; 856 lerp (c.b, to.b, percent),
579 rxvt_color faded; 857 lerp (c.a, to.a, percent)
580 858 )
581 get (display, cr, cg, cb);
582
583 faded.set (
584 display,
585 cr * percent / 100,
586 cg * percent / 100,
587 cb * percent / 100
588 ); 859 );
589
590 return faded;
591} 860}
592 861
593#define LERP(a,b,p) (a * p + b * (100 - p)) / 100
594
595rxvt_color
596rxvt_color::fade (rxvt_display *display, int percent, rxvt_color &fadeto)
597{
598 percent = 100 - percent;
599
600 unsigned short cr, cg, cb;
601 unsigned short fcr, fcg, fcb;
602 rxvt_color faded;
603
604 get (display, cr, cg, cb);
605 fadeto.get(display, fcr, fcg, fcb);
606
607 faded.set (
608 display,
609 LERP (cr, fcr, percent),
610 LERP (cg, fcg, percent),
611 LERP (cb, fcb, percent)
612 );
613
614 return faded;
615}
616

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