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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.36 by root, Mon Jan 30 17:43:20 2006 UTC vs.
Revision 1.65 by sasha, Fri Jun 8 20:04:12 2007 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}
210 265
211void 266void
212rxvt_screen::set (rxvt_display *disp, int bitdepth) 267rxvt_screen::select_visual (int bitdepth)
213{ 268{
214 set (disp);
215
216#if XFT 269#if XFT
217 XVisualInfo vinfo; 270 XVisualInfo vinfo;
218 271
219 if (XMatchVisualInfo (xdisp, display->screen, bitdepth, TrueColor, &vinfo)) 272 if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo))
220 { 273 {
221 depth = bitdepth; 274 depth = bitdepth;
222 visual = vinfo.visual; 275 visual = vinfo.visual;
223 cmap = XCreateColormap (xdisp, disp->root, visual, AllocNone); 276 cmap = XCreateColormap (dpy, display->root, visual, AllocNone);
224 } 277 }
225#endif 278#endif
226} 279}
227 280
228void 281void
229rxvt_screen::clear () 282rxvt_screen::clear ()
230{ 283{
284#if XFT
285 if (scratch_area)
286 {
287 XFreePixmap (dpy, scratch_area->drawable);
288 delete scratch_area;
289 }
290#endif
291
231 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (xdisp, display->screen))) 292 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (dpy, display->screen)))
232 XFreeColormap (xdisp, cmap); 293 XFreeColormap (dpy, cmap);
233} 294}
234 295
235///////////////////////////////////////////////////////////////////////////// 296/////////////////////////////////////////////////////////////////////////////
236 297
237rxvt_display::rxvt_display (const char *id) 298rxvt_display::rxvt_display (const char *id)
… …
240, selection_owner (0) 301, selection_owner (0)
241{ 302{
242} 303}
243 304
244XrmDatabase 305XrmDatabase
245rxvt_display::get_resources () 306rxvt_display::get_resources (bool refresh)
246{ 307{
247 char *homedir = (char *)getenv ("HOME"); 308 char *homedir = (char *)getenv ("HOME");
248 char fname[1024]; 309 char fname[1024];
249 310
250 /* 311 /*
251 * get resources using the X library function 312 * get resources using the X library function
252 */ 313 */
253 char *displayResource, *xe; 314 char *displayResource, *xe;
254 XrmDatabase database, rdb1; 315 XrmDatabase rdb1, database = 0;
255
256 database = NULL;
257 316
258 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20 317 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20
318 // as opposed to "standard practise", we always read in ~/.Xdefaults
259 319
260 // 6. System wide per application default file. 320 // 6. System wide per application default file.
261 321
262 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */ 322 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */
263 if ((xe = (char *)getenv ("XAPPLRESDIR"))) 323 if ((xe = (char *)getenv ("XAPPLRESDIR")))
… …
270 330
271 // 5. User's per application default file. 331 // 5. User's per application default file.
272 // none 332 // none
273 333
274 // 4. User's defaults file. 334 // 4. User's defaults file.
335 if (homedir)
336 {
337 snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir);
338
339 if ((rdb1 = XrmGetFileDatabase (fname)))
340 XrmMergeDatabases (rdb1, &database);
341 }
342
275 /* Get any Xserver defaults */ 343 /* Get any Xserver defaults */
344 if (refresh)
345 {
346 // fucking xlib keeps a copy of the rm string
347 Atom actual_type;
348 int actual_format;
349 unsigned long nitems, nremaining;
350 char *val = 0;
351
352#if XLIB_ILLEGAL_ACCESS
353 if (dpy->xdefaults)
354 XFree (dpy->xdefaults);
355#endif
356
357 if (XGetWindowProperty (dpy, RootWindow (dpy, 0), XA_RESOURCE_MANAGER,
358 0L, 100000000L, False,
359 XA_STRING, &actual_type, &actual_format,
360 &nitems, &nremaining,
361 (unsigned char **)&val) == Success
362 && actual_type == XA_STRING
363 && actual_format == 8)
364 displayResource = val;
365 else
366 {
367 displayResource = 0;
368
369 if (val)
370 XFree(val);
371 }
372
373#if XLIB_ILLEGAL_ACCESS
374 dpy->xdefaults = displayResource;
375#endif
376 }
377 else
276 displayResource = XResourceManagerString (display); 378 displayResource = XResourceManagerString (dpy);
277 379
278 if (displayResource != NULL) 380 if (displayResource)
279 { 381 {
280 if ((rdb1 = XrmGetStringDatabase (displayResource))) 382 if ((rdb1 = XrmGetStringDatabase (displayResource)))
281 XrmMergeDatabases (rdb1, &database); 383 XrmMergeDatabases (rdb1, &database);
282 } 384 }
283 else if (homedir)
284 {
285 snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir);
286 385
287 if ((rdb1 = XrmGetFileDatabase (fname))) 386#if !XLIB_ILLEGAL_ACCESS
288 XrmMergeDatabases (rdb1, &database); 387 if (refresh && displayResource)
289 } 388 XFree (displayResource);
389#endif
290 390
291 /* Get screen specific resources */ 391 /* Get screen specific resources */
292 displayResource = XScreenResourceString (ScreenOfDisplay (display, screen)); 392 displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen));
293 393
294 if (displayResource != NULL) 394 if (displayResource)
295 { 395 {
296 if ((rdb1 = XrmGetStringDatabase (displayResource))) 396 if ((rdb1 = XrmGetStringDatabase (displayResource)))
297 /* Merge with screen-independent resources */ 397 /* Merge with screen-independent resources */
298 XrmMergeDatabases (rdb1, &database); 398 XrmMergeDatabases (rdb1, &database);
299 399
… …
327 if (id[0] == ':') 427 if (id[0] == ':')
328 { 428 {
329 val = rxvt_malloc (5 + strlen (id) + 1); 429 val = rxvt_malloc (5 + strlen (id) + 1);
330 strcpy (val, "unix/"); 430 strcpy (val, "unix/");
331 strcat (val, id); 431 strcat (val, id);
332 display = XOpenDisplay (val); 432 dpy = XOpenDisplay (val);
333 free (val); 433 free (val);
334 } 434 }
335 else 435 else
336#endif 436#endif
337 display = 0; 437 dpy = 0;
338 438
339 if (!display) 439 if (!dpy)
340 display = XOpenDisplay (id); 440 dpy = XOpenDisplay (id);
341 441
342 if (!display) 442 if (!dpy)
343 return false; 443 return false;
344 444
345 screen = DefaultScreen (display); 445 screen = DefaultScreen (dpy);
346 root = DefaultRootWindow (display); 446 root = DefaultRootWindow (dpy);
447
448#ifdef HAVE_AFTERIMAGE
449 ::dpy = dpy; /* init global var from libAfter... */
450 asv = create_asvisual_for_id( dpy, screen, DefaultDepth(dpy,screen), XVisualIDFromVisual(DefaultVisual(dpy,screen)), None, NULL );
451#endif
347 452
348 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA); 453 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
349 XInternAtoms (display, (char **)xa_names, NUM_XA, False, xa); 454 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
350 455
351 XrmSetDatabase (display, get_resources ()); 456 XrmSetDatabase (dpy, get_resources (false));
352 457
353#ifdef POINTER_BLANK 458#ifdef POINTER_BLANK
354 XColor blackcolour; 459 XColor blackcolour;
355 blackcolour.red = 0; 460 blackcolour.red = 0;
356 blackcolour.green = 0; 461 blackcolour.green = 0;
357 blackcolour.blue = 0; 462 blackcolour.blue = 0;
358 Font f = XLoadFont (display, "fixed"); 463 Font f = XLoadFont (dpy, "fixed");
359 blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', 464 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
360 &blackcolour, &blackcolour); 465 &blackcolour, &blackcolour);
361 XUnloadFont (display, f); 466 XUnloadFont (dpy, f);
362#endif 467#endif
363 468
364 int fd = XConnectionNumber (display); 469 int fd = XConnectionNumber (dpy);
365 470
366#ifndef NO_SLOW_LINK_SUPPORT
367 // try to detect wether we have a local connection. 471 // try to detect wether we have a local connection.
368 // assume unix domains socket == local, everything else not 472 // assume unix domains socket == local, everything else not
369 // TODO: might want to check for inet/127.0.0.1 473 // TODO: might want to check for inet/127.0.0.1
370 is_local = 0; 474 is_local = 0;
371 sockaddr_un sa; 475 sockaddr_un sa;
372 socklen_t sl = sizeof (sa); 476 socklen_t sl = sizeof (sa);
373 477
374 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 478 if (!getsockname (fd, (sockaddr *)&sa, &sl))
375 is_local = sa.sun_family == AF_LOCAL; 479 is_local = sa.sun_family == AF_LOCAL;
376#endif
377 480
378 x_ev.start (fd, EVENT_READ); 481 x_ev.start (fd, EVENT_READ);
379 fcntl (fd, F_SETFD, FD_CLOEXEC); 482 fcntl (fd, F_SETFD, FD_CLOEXEC);
380 483
381 XSelectInput (display, root, PropertyChangeMask); 484 XSelectInput (dpy, root, PropertyChangeMask);
382 485
383 flush (); 486 flush ();
384 487
385 return true; 488 return true;
386} 489}
387 490
388void 491void
389rxvt_display::ref_next () 492rxvt_display::ref_next ()
390{ 493{
391 // TODO: somehow check wether the database files/resources changed 494 // TODO: somehow check wether the database files/resources changed
392 // before re-loading/parsing 495 // before affording re-loading/parsing
393 XrmDestroyDatabase (XrmGetDatabase (display)); 496 XrmDestroyDatabase (XrmGetDatabase (dpy));
394 XrmSetDatabase (display, get_resources ()); 497 XrmSetDatabase (dpy, get_resources (true));
395} 498}
396 499
397rxvt_display::~rxvt_display () 500rxvt_display::~rxvt_display ()
398{ 501{
399 if (!display) 502 if (!dpy)
400 return; 503 return;
401 504
402#ifdef POINTER_BLANK 505#ifdef POINTER_BLANK
403 XFreeCursor (display, blank_cursor); 506 XFreeCursor (dpy, blank_cursor);
404#endif 507#endif
405 x_ev.stop (); 508 x_ev.stop ();
406#ifdef USE_XIM 509#ifdef USE_XIM
407 xims.clear (); 510 xims.clear ();
408#endif 511#endif
409 XCloseDisplay (display); 512 XCloseDisplay (dpy);
410} 513}
411 514
412#ifdef USE_XIM 515#ifdef USE_XIM
413void rxvt_display::im_change_cb () 516void rxvt_display::im_change_cb ()
414{ 517{
… …
422 // registers, as xlib crashes due to a race otherwise. 525 // registers, as xlib crashes due to a race otherwise.
423 Atom actual_type, *atoms; 526 Atom actual_type, *atoms;
424 int actual_format; 527 int actual_format;
425 unsigned long nitems, bytes_after; 528 unsigned long nitems, bytes_after;
426 529
427 if (XGetWindowProperty (display, root, xa[XA_XIM_SERVERS], 0L, 1000000L, 530 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
428 False, XA_ATOM, &actual_type, &actual_format, 531 False, XA_ATOM, &actual_type, &actual_format,
429 &nitems, &bytes_after, (unsigned char **)&atoms) 532 &nitems, &bytes_after, (unsigned char **)&atoms)
430 != Success ) 533 != Success )
431 return; 534 return;
432 535
433 if (actual_type == XA_ATOM && actual_format == 32) 536 if (actual_type == XA_ATOM && actual_format == 32)
434 for (int i = 0; i < nitems; i++) 537 for (int i = 0; i < nitems; i++)
435 if (XGetSelectionOwner (display, atoms[i])) 538 if (XGetSelectionOwner (dpy, atoms[i]))
436 { 539 {
437 im_change_cb (); 540 im_change_cb ();
438 break; 541 break;
439 } 542 }
440 543
… …
445void rxvt_display::x_cb (io_watcher &w, short revents) 548void rxvt_display::x_cb (io_watcher &w, short revents)
446{ 549{
447 do 550 do
448 { 551 {
449 XEvent xev; 552 XEvent xev;
450 XNextEvent (display, &xev); 553 XNextEvent (dpy, &xev);
451 554
452#ifdef USE_XIM 555#ifdef USE_XIM
453 if (!XFilterEvent (&xev, None)) 556 if (!XFilterEvent (&xev, None))
454 { 557 {
455 if (xev.type == PropertyNotify 558 if (xev.type == PropertyNotify
… …
466 } 569 }
467#ifdef USE_XIM 570#ifdef USE_XIM
468 } 571 }
469#endif 572#endif
470 } 573 }
471 while (XEventsQueued (display, QueuedAlready)); 574 while (XEventsQueued (dpy, QueuedAlready));
472 575
473 XFlush (display); 576 XFlush (dpy);
474} 577}
475 578
476void rxvt_display::flush () 579void rxvt_display::flush ()
477{ 580{
478 if (XEventsQueued (display, QueuedAlready)) 581 if (XEventsQueued (dpy, QueuedAlready))
479 x_cb (x_ev, EVENT_READ); 582 x_cb (x_ev, EVENT_READ);
480 583
481 XFlush (display); 584 XFlush (dpy);
482} 585}
483 586
484void rxvt_display::reg (xevent_watcher *w) 587void rxvt_display::reg (xevent_watcher *w)
485{ 588{
589 if (!w->active)
590 {
486 xw.push_back (w); 591 xw.push_back (w);
487 w->active = xw.size (); 592 w->active = xw.size ();
593 }
488} 594}
489 595
490void rxvt_display::unreg (xevent_watcher *w) 596void rxvt_display::unreg (xevent_watcher *w)
491{ 597{
492 if (w->active) 598 if (w->active)
599 {
493 xw[w->active - 1] = 0; 600 xw[w->active - 1] = 0;
601 w->active = 0;
602 }
494} 603}
495 604
496void rxvt_display::set_selection_owner (rxvt_term *owner) 605void rxvt_display::set_selection_owner (rxvt_term *owner)
497{ 606{
498 if (selection_owner && selection_owner != owner) 607 if (selection_owner && selection_owner != owner)
… …
500 609
501 selection_owner = owner; 610 selection_owner = owner;
502} 611}
503 612
504#ifdef USE_XIM 613#ifdef USE_XIM
614
505void rxvt_display::reg (im_watcher *w) 615void rxvt_display::reg (im_watcher *w)
506{ 616{
507 imw.push_back (w); 617 imw.push_back (w);
508} 618}
509 619
… …
533 return xim; 643 return xim;
534} 644}
535 645
536void rxvt_display::put_xim (rxvt_xim *xim) 646void rxvt_display::put_xim (rxvt_xim *xim)
537{ 647{
538#if XLIB_IS_RACEFREE 648# if XLIB_IS_RACEFREE
539 xims.put (xim); 649 xims.put (xim);
540#endif 650# endif
541} 651}
652
542#endif 653#endif
543 654
544Atom rxvt_display::atom (const char *name) 655Atom rxvt_display::atom (const char *name)
545{ 656{
546 return XInternAtom (display, name, False); 657 return XInternAtom (dpy, name, False);
547} 658}
548 659
549///////////////////////////////////////////////////////////////////////////// 660/////////////////////////////////////////////////////////////////////////////
550 661
551template class refcache<rxvt_display>; 662template class refcache<rxvt_display>;
552refcache<rxvt_display> displays; 663refcache<rxvt_display> displays;
553 664
554///////////////////////////////////////////////////////////////////////////// 665/////////////////////////////////////////////////////////////////////////////
555 666//
667
668static unsigned int
669insert_component (unsigned int value, unsigned int mask, unsigned int shift)
670{
671 return (value * (mask + 1) >> 16) << shift;
672}
673
674bool
675rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
676{
677#if XFT
678 XRenderPictFormat *format;
679
680 // FUCKING Xft gets it wrong, of course, so work around it.
681 // Transparency users should eat shit and die, and then
682 // XRenderQueryPictIndexValues themselves plenty.
683 if ((screen->visual->c_class == TrueColor)
684 && (format = XRenderFindVisualFormat (screen->dpy, screen->visual)))
685 {
686 // the fun lies in doing everything manually...
687 c.color.red = color.r;
688 c.color.green = color.g;
689 c.color.blue = color.b;
690 c.color.alpha = color.a;
691
692 c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red )
693 | insert_component (color.g, format->direct.greenMask, format->direct.green)
694 | insert_component (color.b, format->direct.blueMask , format->direct.blue )
695 | insert_component (color.a, format->direct.alphaMask, format->direct.alpha);
696
697 return true;
698 }
699 else
700 {
701 XRenderColor d;
702
703 d.red = color.r;
704 d.green = color.g;
705 d.blue = color.b;
706 d.alpha = color.a;
707
708 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
709 }
710#else
711 c.red = color.r;
712 c.green = color.g;
713 c.blue = color.b;
714
715 if (screen->visual->c_class == TrueColor)
716 {
717 c.pixel = (color.r >> (16 - popcount (screen->visual->red_mask )) << ctz (screen->visual->red_mask ))
718 | (color.g >> (16 - popcount (screen->visual->green_mask)) << ctz (screen->visual->green_mask))
719 | (color.b >> (16 - popcount (screen->visual->blue_mask )) << ctz (screen->visual->blue_mask ));
720
721 return true;
722 }
723 else if (XAllocColor (screen->dpy, screen->cmap, &c))
724 return true;
725 else
726 c.pixel = (color.r + color.g + color.b) > 128*3
727 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
728 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
729#endif
730
731 return false;
732}
733
556bool 734bool
557rxvt_color::set (rxvt_screen *screen, const char *name) 735rxvt_color::set (rxvt_screen *screen, const char *name)
558{ 736{
737 rgba c;
738 char eos;
739 int skip;
740
741 // parse the nonstandard "[alphapercent]" prefix
742 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
743 {
744 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
745 name += skip;
746 }
747 else
748 c.a = rgba::MAX_CC;
749
750 // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format
751 if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos))
752 {
753 XColor xc, xc_exact;
754
755 if (XParseColor (screen->dpy, screen->cmap, name, &xc))
756 {
757 c.r = xc.red;
758 c.g = xc.green;
759 c.b = xc.blue;
760 }
761 else
762 {
763 c.r = 0xffff;
764 c.g = 0x6969;
765 c.b = 0xb4b4;
766
767 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
768 }
769 }
770
771 return set (screen, c);
772}
773
774bool
775rxvt_color::set (rxvt_screen *screen, const rgba &color)
776{
777 bool got = alloc (screen, color);
778
779#if !ENABLE_MINIMAL
780 int cmap_size = screen->visual->map_entries;
781
782 if (!got
783 && screen->visual->c_class == PseudoColor
784 && cmap_size < 4096)
785 {
786 XColor *colors = new XColor [screen->visual->map_entries];
787
788 for (int i = 0; i < cmap_size; i++)
789 colors [i].pixel = i;
790
791 // many kilobytes transfer per colour, but pseudocolor isn't worth
792 // many extra optimisations.
793 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
794
795 int diff = 0x7fffffffUL;
796 XColor *best = colors;
797
798 for (int i = 0; i < cmap_size; i++)
799 {
800 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
801 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
802 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
803
804 if (d < diff)
805 {
806 diff = d;
807 best = colors + i;
808 }
809 }
810
811 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
812 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
813
814 got = alloc (screen, rgba (best->red, best->green, best->blue));
815
816 delete [] colors;
817 }
818#endif
819
820 return got;
821}
822
823void
824rxvt_color::get (rgba &color)
825{
559#if XFT 826#if XFT
560 int l = strlen (name); 827 color.r = c.color.red;
561 rxvt_rgba r; 828 color.g = c.color.green;
562 char eos; 829 color.b = c.color.blue;
563 int mult; 830 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 831#else
590 XColor xc; 832 color.r = c.red;
591 833 color.g = c.green;
592 if (XParseColor (screen->xdisp, screen->cmap, name, &xc)) 834 color.b = c.blue;
593 return set (screen, rxvt_rgba (xc.red, xc.green, xc.blue)); 835 color.a = rgba::MAX_CC;
594
595 return false;
596#endif 836#endif
597} 837}
598 838
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 * ((1 << screen->visual->bits_per_rgb) - 1)
641 / rxvt_rgba::MAX_CC) << ctz (screen->visual->red_mask ))
642 | ((rgba.g * ((1 << screen->visual->bits_per_rgb) - 1)
643 / rxvt_rgba::MAX_CC) << ctz (screen->visual->green_mask))
644 | ((rgba.b * ((1 << screen->visual->bits_per_rgb) - 1)
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 839void
670rxvt_color::get (rxvt_screen *screen, rxvt_rgba &rgba) 840rxvt_color::get (XColor &color)
671{ 841{
672#if XFT 842 rgba c;
673 rgba.r = c.color.red; 843 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;
679 844
680 c.pixel = p; 845 color.red = c.r;
681 XQueryColor (screen->xdisp, screen->cmap, &c); 846 color.green = c.g;
682 847 color.blue = c.b;
683 rgba.r = c.red; 848 color.pixel = (Pixel)*this;
684 rgba.g = c.green;
685 rgba.b = c.blue;
686 rgba.a = rxvt_rgba::MAX_CC;
687#endif
688} 849}
689 850
690void 851void
691rxvt_color::free (rxvt_screen *screen) 852rxvt_color::free (rxvt_screen *screen)
692{ 853{
854 if (screen->visual->c_class == TrueColor)
855 return; // nothing to do
856
693#if XFT 857#if XFT
694 XftColorFree (screen->xdisp, screen->visual, screen->cmap, &c); 858 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
695#else 859#else
696 XFreeColors (screen->xdisp, screen->cmap, &p, 1, AllPlanes); 860 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
697#endif 861#endif
698} 862}
699 863
700rxvt_color 864void
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) 865rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
719{ 866{
720 rxvt_rgba c, fc; 867 rgba c;
721 rxvt_color faded; 868 get (c);
722
723 get (screen, c);
724 fadeto.get (screen, fc);
725 869
726 faded.set ( 870 result.set (
727 screen, 871 screen,
728 rxvt_rgba ( 872 rgba (
729 lerp (fc.r, c.r, percent), 873 lerp (c.r, to.r, percent),
730 lerp (fc.g, c.g, percent), 874 lerp (c.g, to.g, percent),
731 lerp (fc.b, c.b, percent), 875 lerp (c.b, to.b, percent),
732 lerp (fc.a, c.a, percent) 876 lerp (c.a, to.a, percent)
733 ) 877 )
734 ); 878 );
735
736 return faded;
737} 879}
738 880

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