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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.24 by root, Wed Jan 25 00:42:21 2006 UTC vs.
Revision 1.55 by root, Sun Feb 19 16:55:03 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}
… …
115bool 174bool
116rxvt_xim::ref_init () 175rxvt_xim::ref_init ()
117{ 176{
118 display = GET_R->display; //HACK: TODO 177 display = GET_R->display; //HACK: TODO
119 178
120 xim = XOpenIM (display->display, NULL, NULL, NULL); 179 xim = XOpenIM (display->dpy, 0, 0, 0);
121 180
122 if (!xim) 181 if (!xim)
123 return false; 182 return false;
124 183
125 XIMCallback ximcallback; 184 XIMCallback ximcallback;
126 ximcallback.client_data = (XPointer)this; 185 ximcallback.client_data = (XPointer)this;
127 ximcallback.callback = im_destroy_cb; 186 ximcallback.callback = im_destroy_cb;
128 187
129 XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL); 188 XSetIMValues (xim, XNDestroyCallback, &ximcallback, 0);
130 189
131 return true; 190 return true;
132} 191}
133 192
134rxvt_xim::~rxvt_xim () 193rxvt_xim::~rxvt_xim ()
… …
136 if (xim) 195 if (xim)
137 XCloseIM (xim); 196 XCloseIM (xim);
138} 197}
139 198
140#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}
141 297
142///////////////////////////////////////////////////////////////////////////// 298/////////////////////////////////////////////////////////////////////////////
143 299
144rxvt_display::rxvt_display (const char *id) 300rxvt_display::rxvt_display (const char *id)
145: refcounted (id) 301: refcounted (id)
… …
147, selection_owner (0) 303, selection_owner (0)
148{ 304{
149} 305}
150 306
151XrmDatabase 307XrmDatabase
152rxvt_display::get_resources () 308rxvt_display::get_resources (bool refresh)
153{ 309{
154 char *homedir = (char *)getenv ("HOME"); 310 char *homedir = (char *)getenv ("HOME");
155 char fname[1024]; 311 char fname[1024];
156 312
157 /* 313 /*
158 * get resources using the X library function 314 * get resources using the X library function
159 */ 315 */
160 char *displayResource, *xe; 316 char *displayResource, *xe;
161 XrmDatabase database, rdb1; 317 XrmDatabase rdb1, database = 0;
162
163 database = NULL;
164 318
165 // 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
166 320
167 // 6. System wide per application default file. 321 // 6. System wide per application default file.
168 322
… …
178 // 5. User's per application default file. 332 // 5. User's per application default file.
179 // none 333 // none
180 334
181 // 4. User's defaults file. 335 // 4. User's defaults file.
182 /* 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, RootWindow (dpy, 0), 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
183 displayResource = XResourceManagerString (display); 370 displayResource = XResourceManagerString (dpy);
184 371
185 if (displayResource != NULL) 372 if (displayResource)
186 { 373 {
187 if ((rdb1 = XrmGetStringDatabase (displayResource))) 374 if ((rdb1 = XrmGetStringDatabase (displayResource)))
188 XrmMergeDatabases (rdb1, &database); 375 XrmMergeDatabases (rdb1, &database);
189 } 376 }
190 else if (homedir) 377 else if (homedir)
… …
193 380
194 if ((rdb1 = XrmGetFileDatabase (fname))) 381 if ((rdb1 = XrmGetFileDatabase (fname)))
195 XrmMergeDatabases (rdb1, &database); 382 XrmMergeDatabases (rdb1, &database);
196 } 383 }
197 384
385#if !XLIB_ILLEGAL_ACCESS
386 if (refresh && displayResource)
387 XFree (displayResource);
388#endif
389
198 /* Get screen specific resources */ 390 /* Get screen specific resources */
199 displayResource = XScreenResourceString (ScreenOfDisplay (display, screen)); 391 displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen));
200 392
201 if (displayResource != NULL) 393 if (displayResource)
202 { 394 {
203 if ((rdb1 = XrmGetStringDatabase (displayResource))) 395 if ((rdb1 = XrmGetStringDatabase (displayResource)))
204 /* Merge with screen-independent resources */ 396 /* Merge with screen-independent resources */
205 XrmMergeDatabases (rdb1, &database); 397 XrmMergeDatabases (rdb1, &database);
206 398
… …
234 if (id[0] == ':') 426 if (id[0] == ':')
235 { 427 {
236 val = rxvt_malloc (5 + strlen (id) + 1); 428 val = rxvt_malloc (5 + strlen (id) + 1);
237 strcpy (val, "unix/"); 429 strcpy (val, "unix/");
238 strcat (val, id); 430 strcat (val, id);
239 display = XOpenDisplay (val); 431 dpy = XOpenDisplay (val);
240 free (val); 432 free (val);
241 } 433 }
242 else 434 else
243#endif 435#endif
244 display = 0; 436 dpy = 0;
245 437
246 if (!display) 438 if (!dpy)
247 display = XOpenDisplay (id); 439 dpy = XOpenDisplay (id);
248 440
249 if (!display) 441 if (!dpy)
250 return false; 442 return false;
251 443
252 screen = DefaultScreen (display); 444 screen = DefaultScreen (dpy);
253 root = DefaultRootWindow (display); 445 root = DefaultRootWindow (dpy);
254 visual = DefaultVisual (display, screen);
255 cmap = DefaultColormap (display, screen);
256 depth = DefaultDepth (display, screen);
257 446
447 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
448 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
449
258 XrmSetDatabase (display, get_resources ()); 450 XrmSetDatabase (dpy, get_resources (false));
259 451
260#ifdef POINTER_BLANK 452#ifdef POINTER_BLANK
261 XColor blackcolour; 453 XColor blackcolour;
262 blackcolour.red = 0; 454 blackcolour.red = 0;
263 blackcolour.green = 0; 455 blackcolour.green = 0;
264 blackcolour.blue = 0; 456 blackcolour.blue = 0;
265 Font f = XLoadFont (display, "fixed"); 457 Font f = XLoadFont (dpy, "fixed");
266 blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', 458 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
267 &blackcolour, &blackcolour); 459 &blackcolour, &blackcolour);
268 XUnloadFont (display, f); 460 XUnloadFont (dpy, f);
269#endif 461#endif
270 462
271#ifdef PREFER_24BIT
272 /*
273 * If depth is not 24, look for a 24bit visual.
274 */
275 if (depth != 24)
276 {
277 XVisualInfo vinfo;
278
279 if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo))
280 {
281 depth = 24;
282 visual = vinfo.visual;
283 cmap = XCreateColormap (display,
284 RootWindow (display, screen),
285 visual, AllocNone);
286 }
287 }
288#endif
289
290 int fd = XConnectionNumber (display); 463 int fd = XConnectionNumber (dpy);
291 464
292#ifndef NO_SLOW_LINK_SUPPORT
293 // try to detect wether we have a local connection. 465 // try to detect wether we have a local connection.
294 // assume unix domains socket == local, everything else not 466 // assume unix domains socket == local, everything else not
295 // TODO: might want to check for inet/127.0.0.1 467 // TODO: might want to check for inet/127.0.0.1
296 is_local = 0; 468 is_local = 0;
297 sockaddr_un sa; 469 sockaddr_un sa;
298 socklen_t sl = sizeof (sa); 470 socklen_t sl = sizeof (sa);
299 471
300 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 472 if (!getsockname (fd, (sockaddr *)&sa, &sl))
301 is_local = sa.sun_family == AF_LOCAL; 473 is_local = sa.sun_family == AF_LOCAL;
302#endif
303 474
304 x_ev.start (fd, EVENT_READ); 475 x_ev.start (fd, EVENT_READ);
305 fcntl (fd, F_SETFD, FD_CLOEXEC); 476 fcntl (fd, F_SETFD, FD_CLOEXEC);
306 477
307 XSelectInput (display, root, PropertyChangeMask); 478 XSelectInput (dpy, root, PropertyChangeMask);
308#ifdef USE_XIM
309 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0);
310#endif
311 479
312 flush (); 480 flush ();
313 481
314 return true; 482 return true;
315} 483}
316 484
317void 485void
318rxvt_display::ref_next () 486rxvt_display::ref_next ()
319{ 487{
320 // TODO: somehow check wether the database files/resources changed 488 // TODO: somehow check wether the database files/resources changed
321 // before re-loading/parsing 489 // before affording re-loading/parsing
322 XrmDestroyDatabase (XrmGetDatabase (display)); 490 XrmDestroyDatabase (XrmGetDatabase (dpy));
323 XrmSetDatabase (display, get_resources ()); 491 XrmSetDatabase (dpy, get_resources (true));
324} 492}
325 493
326rxvt_display::~rxvt_display () 494rxvt_display::~rxvt_display ()
327{ 495{
328 if (!display) 496 if (!dpy)
329 return; 497 return;
330 498
331#ifdef POINTER_BLANK 499#ifdef POINTER_BLANK
332 XFreeCursor (display, blank_cursor); 500 XFreeCursor (dpy, blank_cursor);
333#endif 501#endif
334 x_ev.stop (); 502 x_ev.stop ();
335#ifdef USE_XIM 503#ifdef USE_XIM
336 xims.clear (); 504 xims.clear ();
337#endif 505#endif
338 XCloseDisplay (display); 506 XCloseDisplay (dpy);
339} 507}
340 508
341#ifdef USE_XIM 509#ifdef USE_XIM
342void rxvt_display::im_change_cb () 510void rxvt_display::im_change_cb ()
343{ 511{
… …
351 // registers, as xlib crashes due to a race otherwise. 519 // registers, as xlib crashes due to a race otherwise.
352 Atom actual_type, *atoms; 520 Atom actual_type, *atoms;
353 int actual_format; 521 int actual_format;
354 unsigned long nitems, bytes_after; 522 unsigned long nitems, bytes_after;
355 523
356 if (XGetWindowProperty (display, root, xa_xim_servers, 0L, 1000000L, 524 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
357 False, XA_ATOM, &actual_type, &actual_format, 525 False, XA_ATOM, &actual_type, &actual_format,
358 &nitems, &bytes_after, (unsigned char **)&atoms) 526 &nitems, &bytes_after, (unsigned char **)&atoms)
359 != Success ) 527 != Success )
360 return; 528 return;
361 529
362 if (actual_type == XA_ATOM && actual_format == 32) 530 if (actual_type == XA_ATOM && actual_format == 32)
363 for (int i = 0; i < nitems; i++) 531 for (int i = 0; i < nitems; i++)
364 if (XGetSelectionOwner (display, atoms[i])) 532 if (XGetSelectionOwner (dpy, atoms[i]))
365 { 533 {
366 im_change_cb (); 534 im_change_cb ();
367 break; 535 break;
368 } 536 }
369 537
… …
374void rxvt_display::x_cb (io_watcher &w, short revents) 542void rxvt_display::x_cb (io_watcher &w, short revents)
375{ 543{
376 do 544 do
377 { 545 {
378 XEvent xev; 546 XEvent xev;
379 XNextEvent (display, &xev); 547 XNextEvent (dpy, &xev);
380 548
381#ifdef USE_XIM 549#ifdef USE_XIM
382 if (!XFilterEvent (&xev, None)) 550 if (!XFilterEvent (&xev, None))
383 { 551 {
384 if (xev.type == PropertyNotify 552 if (xev.type == PropertyNotify
385 && xev.xany.window == root 553 && xev.xany.window == root
386 && xev.xproperty.atom == xa_xim_servers) 554 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
387 im_change_check (); 555 im_change_check ();
388#endif 556#endif
389 for (int i = xw.size (); i--; ) 557 for (int i = xw.size (); i--; )
390 { 558 {
391 if (!xw[i]) 559 if (!xw[i])
… …
395 } 563 }
396#ifdef USE_XIM 564#ifdef USE_XIM
397 } 565 }
398#endif 566#endif
399 } 567 }
400 while (XEventsQueued (display, QueuedAlready)); 568 while (XEventsQueued (dpy, QueuedAlready));
401 569
402 XFlush (display); 570 XFlush (dpy);
403} 571}
404 572
405void rxvt_display::flush () 573void rxvt_display::flush ()
406{ 574{
407 if (XEventsQueued (display, QueuedAlready)) 575 if (XEventsQueued (dpy, QueuedAlready))
408 x_cb (x_ev, EVENT_READ); 576 x_cb (x_ev, EVENT_READ);
409 577
410 XFlush (display); 578 XFlush (dpy);
411} 579}
412 580
413void rxvt_display::reg (xevent_watcher *w) 581void rxvt_display::reg (xevent_watcher *w)
414{ 582{
415 xw.push_back (w); 583 xw.push_back (w);
… …
429 597
430 selection_owner = owner; 598 selection_owner = owner;
431} 599}
432 600
433#ifdef USE_XIM 601#ifdef USE_XIM
602
434void rxvt_display::reg (im_watcher *w) 603void rxvt_display::reg (im_watcher *w)
435{ 604{
436 imw.push_back (w); 605 imw.push_back (w);
437} 606}
438 607
… …
462 return xim; 631 return xim;
463} 632}
464 633
465void rxvt_display::put_xim (rxvt_xim *xim) 634void rxvt_display::put_xim (rxvt_xim *xim)
466{ 635{
467#if XLIB_IS_RACEFREE 636# if XLIB_IS_RACEFREE
468 xims.put (xim); 637 xims.put (xim);
469#endif 638# endif
470} 639}
640
471#endif 641#endif
472 642
473Atom rxvt_display::atom (const char *name) 643Atom rxvt_display::atom (const char *name)
474{ 644{
475 return XInternAtom (display, name, False); 645 return XInternAtom (dpy, name, False);
476} 646}
477 647
478///////////////////////////////////////////////////////////////////////////// 648/////////////////////////////////////////////////////////////////////////////
479 649
480template class refcache<rxvt_display>; 650template class refcache<rxvt_display>;
481refcache<rxvt_display> displays; 651refcache<rxvt_display> displays;
482 652
483///////////////////////////////////////////////////////////////////////////// 653/////////////////////////////////////////////////////////////////////////////
484 654
485bool 655bool
486rxvt_color::set (rxvt_display *display, Pixel p) 656rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
487{ 657{
488#if XFT 658#if XFT
489 XColor xc; 659 XRenderPictFormat *format;
490 660
491 xc.pixel = p; 661 // FUCKING Xft gets it wrong, of course, so work around it.
492 if (!XQueryColor (display->display, display->cmap, &xc)) 662 // Transparency users should eat shit and die, and then
493 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;
494 672
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 {
495 XRenderColor d; 682 XRenderColor d;
496 683
497 d.red = xc.red; 684 d.red = color.r;
498 d.green = xc.green; 685 d.green = color.g;
499 d.blue = xc.blue; 686 d.blue = color.b;
500 d.alpha = 0xffff; 687 d.alpha = color.a;
501 688
502 return 689 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
503 XftColorAllocValue (display->display, 690 }
504 display->visual,
505 display->cmap,
506 &d, &c);
507#else 691#else
508 this->p = p; 692 c.red = color.r;
509#endif 693 c.green = color.g;
694 c.blue = color.b;
510 695
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))
511 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;
512} 716}
513 717
514bool 718bool
515rxvt_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)
516{ 809{
517#if XFT 810#if XFT
518 return XftColorAllocName (display->display, display->visual, display->cmap, 811 color.r = c.color.red;
519 name, &c); 812 color.g = c.color.green;
813 color.b = c.color.blue;
814 color.a = c.color.alpha;
520#else 815#else
521 XColor xc; 816 color.r = c.red;
522 817 color.g = c.green;
523 if (XParseColor (display->display, display->cmap, name, &xc)) 818 color.b = c.blue;
524 return set (display, xc.red, xc.green, xc.blue); 819 color.a = rgba::MAX_CC;
525
526 return false;
527#endif 820#endif
528} 821}
529 822
530bool 823void
531rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) 824rxvt_color::get (XColor &color)
532{ 825{
533 XColor xc; 826 rgba c;
827 get (c);
534 828
535 xc.red = cr; 829 color.red = c.r;
536 xc.green = cg; 830 color.green = c.g;
537 xc.blue = cb; 831 color.blue = c.b;
538 xc.flags = DoRed | DoGreen | DoBlue; 832 color.pixel = (Pixel)*this;
539
540 if (XAllocColor (display->display, display->cmap, &xc))
541 return set (display, xc.pixel);
542
543 return false;
544} 833}
545 834
546void 835void
547rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) 836rxvt_color::free (rxvt_screen *screen)
548{ 837{
838 if (screen->visual->c_class == TrueColor)
839 return; // nothing to do
840
549#if XFT 841#if XFT
550 cr = c.color.red; 842 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
551 cg = c.color.green;
552 cb = c.color.blue;
553#else 843#else
554 XColor c; 844 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
555
556 c.pixel = p;
557 XQueryColor (display->display, display->cmap, &c);
558
559 cr = c.red;
560 cg = c.green;
561 cb = c.blue;
562#endif 845#endif
563} 846}
564 847
565void 848void
566rxvt_color::free (rxvt_display *display) 849rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
567{ 850{
568#if XFT 851 rgba c;
569 XftColorFree (display->display, display->visual, display->cmap, &c); 852 get (c);
570#else
571 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
572#endif
573}
574 853
575rxvt_color 854 result.set (
576rxvt_color::fade (rxvt_display *display, int percent) 855 screen,
577{ 856 rgba (
578 percent = 100 - percent; 857 lerp (c.r, to.r, percent),
579 858 lerp (c.g, to.g, percent),
580 unsigned short cr, cg, cb; 859 lerp (c.b, to.b, percent),
581 rxvt_color faded; 860 lerp (c.a, to.a, percent)
582 861 )
583 get (display, cr, cg, cb);
584
585 faded.set (
586 display,
587 cr * percent / 100,
588 cg * percent / 100,
589 cb * percent / 100
590 ); 862 );
591
592 return faded;
593} 863}
594 864
595#define LERP(a,b,p) (a * p + b * (100 - p)) / 100
596
597rxvt_color
598rxvt_color::fade (rxvt_display *display, int percent, rxvt_color &fadeto)
599{
600 percent = 100 - percent;
601
602 unsigned short cr, cg, cb;
603 unsigned short fcr, fcg, fcb;
604 rxvt_color faded;
605
606 get (display, cr, cg, cb);
607 fadeto.get(display, fcr, fcg, fcb);
608
609 faded.set (
610 display,
611 LERP (cr, fcr, percent),
612 LERP (cg, fcg, percent),
613 LERP (cb, fcb, percent)
614 );
615
616 return faded;
617}
618

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