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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.35 by root, Mon Jan 30 16:12:58 2006 UTC vs.
Revision 1.58 by root, Wed Jul 5 19:22:15 2006 UTC

1/*--------------------------------*-C-*---------------------------------* 1/*----------------------------------------------------------------------*
2 * File: rxvttoolkit.C 2 * File: rxvttoolkit.C
3 *----------------------------------------------------------------------* 3 *----------------------------------------------------------------------*
4 * 4 *
5 * All portions of code are copyright by their respective author/s. 5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 2003-2004 Marc Lehmann <pcg@goof.com> 6 * Copyright (c) 2003-2006 Marc Lehmann <pcg@goof.com>
7 * 7 *
8 * This program is free software; you can redistribute it and/or modify 8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by 9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version. 11 * (at your option) any later version.
… …
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>
35#endif
36 33
37#if XFT 34#if XFT
38# include <X11/extensions/Xrender.h> 35# include <X11/extensions/Xrender.h>
39#endif 36#endif
40 37
… …
81 "SCREEN_RESOURCES", 78 "SCREEN_RESOURCES",
82 "XDCCC_LINEAR_RGB_CORRECTION", 79 "XDCCC_LINEAR_RGB_CORRECTION",
83 "XDCCC_LINEAR_RGB_MATRICES", 80 "XDCCC_LINEAR_RGB_MATRICES",
84 "WM_COLORMAP_WINDOWS", 81 "WM_COLORMAP_WINDOWS",
85 "WM_STATE", 82 "WM_STATE",
83 "cursor",
84# if USE_XIM
85 "TRANSPORT",
86 "LOCALES",
87 "_XIM_PROTOCOL",
88 "_XIM_XCONNECT",
89 "_XIM_MOREDATA",
90# endif
86#endif 91#endif
87}; 92};
88 93
89///////////////////////////////////////////////////////////////////////////// 94/////////////////////////////////////////////////////////////////////////////
90 95
… …
169bool 174bool
170rxvt_xim::ref_init () 175rxvt_xim::ref_init ()
171{ 176{
172 display = GET_R->display; //HACK: TODO 177 display = GET_R->display; //HACK: TODO
173 178
174 xim = XOpenIM (display->display, NULL, NULL, NULL); 179 xim = XOpenIM (display->dpy, 0, 0, 0);
175 180
176 if (!xim) 181 if (!xim)
177 return false; 182 return false;
178 183
179 XIMCallback ximcallback; 184 XIMCallback ximcallback;
180 ximcallback.client_data = (XPointer)this; 185 ximcallback.client_data = (XPointer)this;
181 ximcallback.callback = im_destroy_cb; 186 ximcallback.callback = im_destroy_cb;
182 187
183 XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL); 188 XSetIMValues (xim, XNDestroyCallback, &ximcallback, 0);
184 189
185 return true; 190 return true;
186} 191}
187 192
188rxvt_xim::~rxvt_xim () 193rxvt_xim::~rxvt_xim ()
… …
193 198
194#endif 199#endif
195 200
196///////////////////////////////////////////////////////////////////////////// 201/////////////////////////////////////////////////////////////////////////////
197 202
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
198void 253void
199rxvt_screen::set (rxvt_display *disp) 254rxvt_screen::set (rxvt_display *disp)
200{ 255{
201 display = disp; 256 display = disp;
202 xdisp = disp->display; 257 dpy = disp->dpy;
203 258
204 Screen *screen = ScreenOfDisplay (xdisp, disp->screen); 259 Screen *screen = ScreenOfDisplay (dpy, disp->screen);
205 260
206 depth = DefaultDepthOfScreen (screen); 261 depth = DefaultDepthOfScreen (screen);
207 visual = DefaultVisualOfScreen (screen); 262 visual = DefaultVisualOfScreen (screen);
208 cmap = DefaultColormapOfScreen (screen); 263 cmap = DefaultColormapOfScreen (screen);
209} 264}
… …
214 set (disp); 269 set (disp);
215 270
216#if XFT 271#if XFT
217 XVisualInfo vinfo; 272 XVisualInfo vinfo;
218 273
219 if (XMatchVisualInfo (xdisp, display->screen, bitdepth, TrueColor, &vinfo)) 274 if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo))
220 { 275 {
221 depth = bitdepth; 276 depth = bitdepth;
222 visual = vinfo.visual; 277 visual = vinfo.visual;
223 cmap = XCreateColormap (xdisp, disp->root, visual, AllocNone); 278 cmap = XCreateColormap (dpy, disp->root, visual, AllocNone);
224 } 279 }
225#endif 280#endif
226} 281}
227 282
228void 283void
229rxvt_screen::clear () 284rxvt_screen::clear ()
230{ 285{
286#if XFT
287 if (scratch_area)
288 {
289 XFreePixmap (dpy, scratch_area->drawable);
290 delete scratch_area;
291 }
292#endif
293
231 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (xdisp, display->screen))) 294 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (dpy, display->screen)))
232 XFreeColormap (xdisp, cmap); 295 XFreeColormap (dpy, cmap);
233} 296}
234 297
235///////////////////////////////////////////////////////////////////////////// 298/////////////////////////////////////////////////////////////////////////////
236 299
237rxvt_display::rxvt_display (const char *id) 300rxvt_display::rxvt_display (const char *id)
… …
240, selection_owner (0) 303, selection_owner (0)
241{ 304{
242} 305}
243 306
244XrmDatabase 307XrmDatabase
245rxvt_display::get_resources () 308rxvt_display::get_resources (bool refresh)
246{ 309{
247 char *homedir = (char *)getenv ("HOME"); 310 char *homedir = (char *)getenv ("HOME");
248 char fname[1024]; 311 char fname[1024];
249 312
250 /* 313 /*
251 * get resources using the X library function 314 * get resources using the X library function
252 */ 315 */
253 char *displayResource, *xe; 316 char *displayResource, *xe;
254 XrmDatabase database, rdb1; 317 XrmDatabase rdb1, database = 0;
255
256 database = NULL;
257 318
258 // 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
259 320
260 // 6. System wide per application default file. 321 // 6. System wide per application default file.
261 322
… …
271 // 5. User's per application default file. 332 // 5. User's per application default file.
272 // none 333 // none
273 334
274 // 4. User's defaults file. 335 // 4. User's defaults file.
275 /* 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
276 displayResource = XResourceManagerString (display); 370 displayResource = XResourceManagerString (dpy);
277 371
278 if (displayResource != NULL) 372 if (displayResource)
279 { 373 {
280 if ((rdb1 = XrmGetStringDatabase (displayResource))) 374 if ((rdb1 = XrmGetStringDatabase (displayResource)))
281 XrmMergeDatabases (rdb1, &database); 375 XrmMergeDatabases (rdb1, &database);
282 } 376 }
283 else if (homedir) 377 else if (homedir)
… …
286 380
287 if ((rdb1 = XrmGetFileDatabase (fname))) 381 if ((rdb1 = XrmGetFileDatabase (fname)))
288 XrmMergeDatabases (rdb1, &database); 382 XrmMergeDatabases (rdb1, &database);
289 } 383 }
290 384
385#if !XLIB_ILLEGAL_ACCESS
386 if (refresh && displayResource)
387 XFree (displayResource);
388#endif
389
291 /* Get screen specific resources */ 390 /* Get screen specific resources */
292 displayResource = XScreenResourceString (ScreenOfDisplay (display, screen)); 391 displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen));
293 392
294 if (displayResource != NULL) 393 if (displayResource)
295 { 394 {
296 if ((rdb1 = XrmGetStringDatabase (displayResource))) 395 if ((rdb1 = XrmGetStringDatabase (displayResource)))
297 /* Merge with screen-independent resources */ 396 /* Merge with screen-independent resources */
298 XrmMergeDatabases (rdb1, &database); 397 XrmMergeDatabases (rdb1, &database);
299 398
… …
327 if (id[0] == ':') 426 if (id[0] == ':')
328 { 427 {
329 val = rxvt_malloc (5 + strlen (id) + 1); 428 val = rxvt_malloc (5 + strlen (id) + 1);
330 strcpy (val, "unix/"); 429 strcpy (val, "unix/");
331 strcat (val, id); 430 strcat (val, id);
332 display = XOpenDisplay (val); 431 dpy = XOpenDisplay (val);
333 free (val); 432 free (val);
334 } 433 }
335 else 434 else
336#endif 435#endif
337 display = 0; 436 dpy = 0;
338 437
339 if (!display) 438 if (!dpy)
340 display = XOpenDisplay (id); 439 dpy = XOpenDisplay (id);
341 440
342 if (!display) 441 if (!dpy)
343 return false; 442 return false;
344 443
345 screen = DefaultScreen (display); 444 screen = DefaultScreen (dpy);
346 root = DefaultRootWindow (display); 445 root = DefaultRootWindow (dpy);
347 446
348 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA); 447 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
349 XInternAtoms (display, (char **)xa_names, NUM_XA, False, xa); 448 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
350 449
351 XrmSetDatabase (display, get_resources ()); 450 XrmSetDatabase (dpy, get_resources (false));
352 451
353#ifdef POINTER_BLANK 452#ifdef POINTER_BLANK
354 XColor blackcolour; 453 XColor blackcolour;
355 blackcolour.red = 0; 454 blackcolour.red = 0;
356 blackcolour.green = 0; 455 blackcolour.green = 0;
357 blackcolour.blue = 0; 456 blackcolour.blue = 0;
358 Font f = XLoadFont (display, "fixed"); 457 Font f = XLoadFont (dpy, "fixed");
359 blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', 458 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
360 &blackcolour, &blackcolour); 459 &blackcolour, &blackcolour);
361 XUnloadFont (display, f); 460 XUnloadFont (dpy, f);
362#endif 461#endif
363 462
364 int fd = XConnectionNumber (display); 463 int fd = XConnectionNumber (dpy);
365 464
366#ifndef NO_SLOW_LINK_SUPPORT
367 // try to detect wether we have a local connection. 465 // try to detect wether we have a local connection.
368 // assume unix domains socket == local, everything else not 466 // assume unix domains socket == local, everything else not
369 // TODO: might want to check for inet/127.0.0.1 467 // TODO: might want to check for inet/127.0.0.1
370 is_local = 0; 468 is_local = 0;
371 sockaddr_un sa; 469 sockaddr_un sa;
372 socklen_t sl = sizeof (sa); 470 socklen_t sl = sizeof (sa);
373 471
374 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 472 if (!getsockname (fd, (sockaddr *)&sa, &sl))
375 is_local = sa.sun_family == AF_LOCAL; 473 is_local = sa.sun_family == AF_LOCAL;
376#endif
377 474
378 x_ev.start (fd, EVENT_READ); 475 x_ev.start (fd, EVENT_READ);
379 fcntl (fd, F_SETFD, FD_CLOEXEC); 476 fcntl (fd, F_SETFD, FD_CLOEXEC);
380 477
381 XSelectInput (display, root, PropertyChangeMask); 478 XSelectInput (dpy, root, PropertyChangeMask);
382 479
383 flush (); 480 flush ();
384 481
385 return true; 482 return true;
386} 483}
387 484
388void 485void
389rxvt_display::ref_next () 486rxvt_display::ref_next ()
390{ 487{
391 // TODO: somehow check wether the database files/resources changed 488 // TODO: somehow check wether the database files/resources changed
392 // before re-loading/parsing 489 // before affording re-loading/parsing
393 XrmDestroyDatabase (XrmGetDatabase (display)); 490 XrmDestroyDatabase (XrmGetDatabase (dpy));
394 XrmSetDatabase (display, get_resources ()); 491 XrmSetDatabase (dpy, get_resources (true));
395} 492}
396 493
397rxvt_display::~rxvt_display () 494rxvt_display::~rxvt_display ()
398{ 495{
399 if (!display) 496 if (!dpy)
400 return; 497 return;
401 498
402#ifdef POINTER_BLANK 499#ifdef POINTER_BLANK
403 XFreeCursor (display, blank_cursor); 500 XFreeCursor (dpy, blank_cursor);
404#endif 501#endif
405 x_ev.stop (); 502 x_ev.stop ();
406#ifdef USE_XIM 503#ifdef USE_XIM
407 xims.clear (); 504 xims.clear ();
408#endif 505#endif
409 XCloseDisplay (display); 506 XCloseDisplay (dpy);
410} 507}
411 508
412#ifdef USE_XIM 509#ifdef USE_XIM
413void rxvt_display::im_change_cb () 510void rxvt_display::im_change_cb ()
414{ 511{
… …
422 // registers, as xlib crashes due to a race otherwise. 519 // registers, as xlib crashes due to a race otherwise.
423 Atom actual_type, *atoms; 520 Atom actual_type, *atoms;
424 int actual_format; 521 int actual_format;
425 unsigned long nitems, bytes_after; 522 unsigned long nitems, bytes_after;
426 523
427 if (XGetWindowProperty (display, root, xa[XA_XIM_SERVERS], 0L, 1000000L, 524 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
428 False, XA_ATOM, &actual_type, &actual_format, 525 False, XA_ATOM, &actual_type, &actual_format,
429 &nitems, &bytes_after, (unsigned char **)&atoms) 526 &nitems, &bytes_after, (unsigned char **)&atoms)
430 != Success ) 527 != Success )
431 return; 528 return;
432 529
433 if (actual_type == XA_ATOM && actual_format == 32) 530 if (actual_type == XA_ATOM && actual_format == 32)
434 for (int i = 0; i < nitems; i++) 531 for (int i = 0; i < nitems; i++)
435 if (XGetSelectionOwner (display, atoms[i])) 532 if (XGetSelectionOwner (dpy, atoms[i]))
436 { 533 {
437 im_change_cb (); 534 im_change_cb ();
438 break; 535 break;
439 } 536 }
440 537
… …
445void rxvt_display::x_cb (io_watcher &w, short revents) 542void rxvt_display::x_cb (io_watcher &w, short revents)
446{ 543{
447 do 544 do
448 { 545 {
449 XEvent xev; 546 XEvent xev;
450 XNextEvent (display, &xev); 547 XNextEvent (dpy, &xev);
451 548
452#ifdef USE_XIM 549#ifdef USE_XIM
453 if (!XFilterEvent (&xev, None)) 550 if (!XFilterEvent (&xev, None))
454 { 551 {
455 if (xev.type == PropertyNotify 552 if (xev.type == PropertyNotify
… …
466 } 563 }
467#ifdef USE_XIM 564#ifdef USE_XIM
468 } 565 }
469#endif 566#endif
470 } 567 }
471 while (XEventsQueued (display, QueuedAlready)); 568 while (XEventsQueued (dpy, QueuedAlready));
472 569
473 XFlush (display); 570 XFlush (dpy);
474} 571}
475 572
476void rxvt_display::flush () 573void rxvt_display::flush ()
477{ 574{
478 if (XEventsQueued (display, QueuedAlready)) 575 if (XEventsQueued (dpy, QueuedAlready))
479 x_cb (x_ev, EVENT_READ); 576 x_cb (x_ev, EVENT_READ);
480 577
481 XFlush (display); 578 XFlush (dpy);
482} 579}
483 580
484void rxvt_display::reg (xevent_watcher *w) 581void rxvt_display::reg (xevent_watcher *w)
485{ 582{
486 xw.push_back (w); 583 xw.push_back (w);
… …
500 597
501 selection_owner = owner; 598 selection_owner = owner;
502} 599}
503 600
504#ifdef USE_XIM 601#ifdef USE_XIM
602
505void rxvt_display::reg (im_watcher *w) 603void rxvt_display::reg (im_watcher *w)
506{ 604{
507 imw.push_back (w); 605 imw.push_back (w);
508} 606}
509 607
… …
533 return xim; 631 return xim;
534} 632}
535 633
536void rxvt_display::put_xim (rxvt_xim *xim) 634void rxvt_display::put_xim (rxvt_xim *xim)
537{ 635{
538#if XLIB_IS_RACEFREE 636# if XLIB_IS_RACEFREE
539 xims.put (xim); 637 xims.put (xim);
540#endif 638# endif
541} 639}
640
542#endif 641#endif
543 642
544Atom rxvt_display::atom (const char *name) 643Atom rxvt_display::atom (const char *name)
545{ 644{
546 return XInternAtom (display, name, False); 645 return XInternAtom (dpy, name, False);
547} 646}
548 647
549///////////////////////////////////////////////////////////////////////////// 648/////////////////////////////////////////////////////////////////////////////
550 649
551template class refcache<rxvt_display>; 650template class refcache<rxvt_display>;
552refcache<rxvt_display> displays; 651refcache<rxvt_display> displays;
553 652
554///////////////////////////////////////////////////////////////////////////// 653/////////////////////////////////////////////////////////////////////////////
555 654//
655
656static unsigned int
657insert_component (unsigned int value, unsigned int mask, unsigned int shift)
658{
659 return (value * (mask + 1) >> 16) << shift;
660}
661
662bool
663rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
664{
665#if XFT
666 XRenderPictFormat *format;
667
668 // FUCKING Xft gets it wrong, of course, so work around it.
669 // Transparency users should eat shit and die, and then
670 // XRenderQueryPictIndexValues themselves plenty.
671 if ((screen->visual->c_class == TrueColor)
672 && (format = XRenderFindVisualFormat (screen->dpy, screen->visual)))
673 {
674 // the fun lies in doing everything manually...
675 c.color.red = color.r;
676 c.color.green = color.g;
677 c.color.blue = color.b;
678 c.color.alpha = color.a;
679
680 c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red )
681 | insert_component (color.g, format->direct.greenMask, format->direct.green)
682 | insert_component (color.b, format->direct.blueMask , format->direct.blue )
683 | insert_component (color.a, format->direct.alphaMask, format->direct.alpha);
684
685 return true;
686 }
687 else
688 {
689 XRenderColor d;
690
691 d.red = color.r;
692 d.green = color.g;
693 d.blue = color.b;
694 d.alpha = color.a;
695
696 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
697 }
698#else
699 c.red = color.r;
700 c.green = color.g;
701 c.blue = color.b;
702
703 if (screen->visual->c_class == TrueColor)
704 {
705 c.pixel = (color.r * (screen->visual->red_mask >> ctz (screen->visual->red_mask ))
706 / rgba::MAX_CC) << ctz (screen->visual->red_mask )
707 | (color.g * (screen->visual->green_mask >> ctz (screen->visual->green_mask))
708 / rgba::MAX_CC) << ctz (screen->visual->green_mask)
709 | (color.b * (screen->visual->blue_mask >> ctz (screen->visual->blue_mask ))
710 / rgba::MAX_CC) << ctz (screen->visual->blue_mask );
711
712 return true;
713 }
714 else if (XAllocColor (screen->dpy, screen->cmap, &c))
715 return true;
716 else
717 c.pixel = (color.r + color.g + color.b) > 128*3
718 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
719 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
720#endif
721
722 return false;
723}
724
556bool 725bool
557rxvt_color::set (rxvt_screen *screen, const char *name) 726rxvt_color::set (rxvt_screen *screen, const char *name)
558{ 727{
728 rgba c;
729 char eos;
730 int skip;
731
732 // parse the nonstandard "[alphapercent]" prefix
733 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
734 {
735 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
736 name += skip;
737 }
738 else
739 c.a = rgba::MAX_CC;
740
741 // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format
742 if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos))
743 {
744 XColor xc, xc_exact;
745
746 if (XParseColor (screen->dpy, screen->cmap, name, &xc))
747 {
748 c.r = xc.red;
749 c.g = xc.green;
750 c.b = xc.blue;
751 }
752 else
753 {
754 c.r = 0xffff;
755 c.g = 0x6969;
756 c.b = 0xb4b4;
757
758 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
759 }
760 }
761
762 return set (screen, c);
763}
764
765bool
766rxvt_color::set (rxvt_screen *screen, const rgba &color)
767{
768 bool got = alloc (screen, color);
769
770#if !ENABLE_MINIMAL
771 int cmap_size = screen->visual->map_entries;
772
773 if (!got
774 && screen->visual->c_class == PseudoColor
775 && cmap_size < 4096)
776 {
777 XColor *colors = new XColor [screen->visual->map_entries];
778
779 for (int i = 0; i < cmap_size; i++)
780 colors [i].pixel = i;
781
782 // many kilobytes transfer per colour, but pseudocolor isn't worth
783 // many extra optimisations.
784 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
785
786 int diff = 0x7fffffffUL;
787 XColor *best = colors;
788
789 for (int i = 0; i < cmap_size; i++)
790 {
791 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
792 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
793 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
794
795 if (d < diff)
796 {
797 diff = d;
798 best = colors + i;
799 }
800 }
801
802 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
803 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
804
805 got = alloc (screen, rgba (best->red, best->green, best->blue));
806
807 delete colors;
808 }
809#endif
810
811 return got;
812}
813
814void
815rxvt_color::get (rgba &color)
816{
559#if XFT 817#if XFT
560 int l = strlen (name); 818 color.r = c.color.red;
561 rxvt_rgba r; 819 color.g = c.color.green;
562 char eos; 820 color.b = c.color.blue;
563 int mult; 821 color.a = c.color.alpha;
564
565 // shortcutting this saves countless server RTTs for the built-in colours
566 if (l == 3+3*3 && 3 == sscanf (name, "rgb:%hx/%hx/%hx/%hx%c", &r.r, &r.g, &r.b, &r.a, &eos))
567 {
568 r.a = rxvt_rgba::MAX_CC;
569 mult = rxvt_rgba::MAX_CC / 0x00ff;
570 }
571
572 // parse a number of non-standard ARGB colour specifications
573 else if ( l == 1+4*1 && 4 == sscanf (name, "#%1hx%1hx%1hx%1hx%c", &r.a, &r.r, &r.g, &r.b, &eos))
574 mult = rxvt_rgba::MAX_CC / 0x000f;
575 else if (l == 1+4*2 && 4 == sscanf (name, "#%2hx%2hx%2hx%2hx%c", &r.a, &r.r, &r.g, &r.b, &eos))
576 mult = rxvt_rgba::MAX_CC / 0x00ff;
577 else if (l == 1+4*4 && 4 == sscanf (name, "#%4hx%4hx%4hx%4hx%c", &r.a, &r.r, &r.g, &r.b, &eos))
578 mult = rxvt_rgba::MAX_CC / 0xffff;
579 else if (l == 4+5*4 && 4 == sscanf (name, "rgba:%hx/%hx/%hx/%hx%c", &r.r, &r.g, &r.b, &r.a, &eos))
580 mult = rxvt_rgba::MAX_CC / 0xffff;
581
582 // slow case: server round trip
583 else
584 return XftColorAllocName (screen->xdisp, screen->visual, screen->cmap, name, &c);
585
586 r.r *= mult; r.g *= mult; r.b *= mult; r.a *= mult;
587
588 return set (screen, r);
589#else 822#else
590 XColor xc; 823 color.r = c.red;
591 824 color.g = c.green;
592 if (XParseColor (screen->xdisp, screen->cmap, name, &xc)) 825 color.b = c.blue;
593 return set (screen, rxvt_rgba (xc.red, xc.green, xc.blue)); 826 color.a = rgba::MAX_CC;
594
595 return false;
596#endif 827#endif
597} 828}
598 829
599bool
600rxvt_color::set (rxvt_screen *screen, rxvt_rgba rgba)
601{
602#if XFT
603 XRenderPictFormat *format;
604
605 // FUCKING Xft gets it wrong, of course, so work around it
606 // transparency users should eat shit and die, and then
607 // XRenderQueryPictIndexValues themselves plenty.
608 if (screen->visual->c_class == TrueColor
609 && (format = XRenderFindVisualFormat (screen->xdisp, screen->visual)))
610 {
611 // the fun lies in doing everything manually...
612 c.color.red = rgba.r;
613 c.color.green = rgba.g;
614 c.color.blue = rgba.b;
615 c.color.alpha = rgba.a;
616
617 c.pixel = ((rgba.r * format->direct.redMask / rxvt_rgba::MAX_CC) << format->direct.red )
618 | ((rgba.g * format->direct.greenMask / rxvt_rgba::MAX_CC) << format->direct.green)
619 | ((rgba.b * format->direct.blueMask / rxvt_rgba::MAX_CC) << format->direct.blue )
620 | ((rgba.a * format->direct.alphaMask / rxvt_rgba::MAX_CC) << format->direct.alpha);
621
622 return true;
623 }
624 else
625 {
626 XRenderColor d;
627
628 d.red = rgba.r;
629 d.green = rgba.g;
630 d.blue = rgba.b;
631 d.alpha = rgba.a;
632
633 return XftColorAllocValue (screen->xdisp, screen->visual, screen->cmap, &d, &c);
634 }
635
636 return false;
637#else
638 if (screen->visual->c_class == TrueColor)
639 {
640 p = (rgba.r * (screen->visual->red_mask >> ctz (screen->visual->red_mask ))
641 / rxvt_rgba::MAX_CC) << ctz (screen->visual->red_mask )
642 | (rgba.g * (screen->visual->green_mask >> ctz (screen->visual->green_mask))
643 / rxvt_rgba::MAX_CC) << ctz (screen->visual->green_mask)
644 | (rgba.b * (screen->visual->blue_mask >> ctz (screen->visual->blue_mask ))
645 / rxvt_rgba::MAX_CC) << ctz (screen->visual->blue_mask );
646
647 return true;
648 }
649 else
650 {
651 XColor xc;
652
653 xc.red = rgba.r;
654 xc.green = rgba.g;
655 xc.blue = rgba.b;
656 xc.flags = DoRed | DoGreen | DoBlue;
657
658 if (XAllocColor (screen->xdisp, screen->cmap, &xc))
659 {
660 p = xc.pixel;
661 return true;
662 }
663 }
664
665 return false;
666#endif
667}
668
669void 830void
670rxvt_color::get (rxvt_screen *screen, rxvt_rgba &rgba) 831rxvt_color::get (XColor &color)
671{ 832{
672#if XFT 833 rgba c;
673 rgba.r = c.color.red; 834 get (c);
674 rgba.g = c.color.green;
675 rgba.b = c.color.blue;
676 rgba.a = c.color.alpha;
677#else
678 XColor c;
679 835
680 c.pixel = p; 836 color.red = c.r;
681 XQueryColor (screen->xdisp, screen->cmap, &c); 837 color.green = c.g;
682 838 color.blue = c.b;
683 rgba.r = c.red; 839 color.pixel = (Pixel)*this;
684 rgba.g = c.green;
685 rgba.b = c.blue;
686 rgba.a = rxvt_rgba::MAX_CC;
687#endif
688} 840}
689 841
690void 842void
691rxvt_color::free (rxvt_screen *screen) 843rxvt_color::free (rxvt_screen *screen)
692{ 844{
845 if (screen->visual->c_class == TrueColor)
846 return; // nothing to do
847
693#if XFT 848#if XFT
694 XftColorFree (screen->xdisp, screen->visual, screen->cmap, &c); 849 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
695#else 850#else
696 XFreeColors (screen->xdisp, screen->cmap, &p, 1, AllPlanes); 851 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
697#endif 852#endif
698} 853}
699 854
700rxvt_color 855void
701rxvt_color::fade (rxvt_screen *screen, int percent)
702{
703 rxvt_color faded;
704
705 rxvt_rgba c;
706 get (screen, c);
707
708 c.r = lerp (0, c.r, percent);
709 c.g = lerp (0, c.g, percent);
710 c.b = lerp (0, c.b, percent);
711
712 faded.set (screen, c);
713
714 return faded;
715}
716
717rxvt_color
718rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &fadeto) 856rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
719{ 857{
720 rxvt_rgba c, fc; 858 rgba c;
721 rxvt_color faded; 859 get (c);
722
723 get (screen, c);
724 fadeto.get (screen, fc);
725 860
726 faded.set ( 861 result.set (
727 screen, 862 screen,
728 rxvt_rgba ( 863 rgba (
729 lerp (fc.r, c.r, percent), 864 lerp (c.r, to.r, percent),
730 lerp (fc.g, c.g, percent), 865 lerp (c.g, to.g, percent),
731 lerp (fc.b, c.b, percent), 866 lerp (c.b, to.b, percent),
732 lerp (fc.a, c.a, percent) 867 lerp (c.a, to.a, percent)
733 ) 868 )
734 ); 869 );
735
736 return faded;
737} 870}
738 871

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