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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.34 by root, Mon Jan 30 02:21:20 2006 UTC vs.
Revision 1.67 by ayin, Mon Jun 25 23:27:18 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),
451 XVisualIDFromVisual (DefaultVisual (dpy, screen)), None, NULL);
452#endif
347 453
348 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA); 454 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
349 XInternAtoms (display, (char **)xa_names, NUM_XA, False, xa); 455 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
350 456
351 XrmSetDatabase (display, get_resources ()); 457 XrmSetDatabase (dpy, get_resources (false));
352 458
353#ifdef POINTER_BLANK 459#ifdef POINTER_BLANK
354 XColor blackcolour; 460 XColor blackcolour;
355 blackcolour.red = 0; 461 blackcolour.red = 0;
356 blackcolour.green = 0; 462 blackcolour.green = 0;
357 blackcolour.blue = 0; 463 blackcolour.blue = 0;
358 Font f = XLoadFont (display, "fixed"); 464 Font f = XLoadFont (dpy, "fixed");
359 blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', 465 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
360 &blackcolour, &blackcolour); 466 &blackcolour, &blackcolour);
361 XUnloadFont (display, f); 467 XUnloadFont (dpy, f);
362#endif 468#endif
363 469
364 int fd = XConnectionNumber (display); 470 int fd = XConnectionNumber (dpy);
365 471
366#ifndef NO_SLOW_LINK_SUPPORT
367 // try to detect wether we have a local connection. 472 // try to detect wether we have a local connection.
368 // assume unix domains socket == local, everything else not 473 // assume unix domains socket == local, everything else not
369 // TODO: might want to check for inet/127.0.0.1 474 // TODO: might want to check for inet/127.0.0.1
370 is_local = 0; 475 is_local = 0;
371 sockaddr_un sa; 476 sockaddr_un sa;
372 socklen_t sl = sizeof (sa); 477 socklen_t sl = sizeof (sa);
373 478
374 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 479 if (!getsockname (fd, (sockaddr *)&sa, &sl))
375 is_local = sa.sun_family == AF_LOCAL; 480 is_local = sa.sun_family == AF_UNIX;
376#endif
377 481
378 x_ev.start (fd, EVENT_READ); 482 x_ev.start (fd, EVENT_READ);
379 fcntl (fd, F_SETFD, FD_CLOEXEC); 483 fcntl (fd, F_SETFD, FD_CLOEXEC);
380 484
381 XSelectInput (display, root, PropertyChangeMask); 485 XSelectInput (dpy, root, PropertyChangeMask);
382 486
383 flush (); 487 flush ();
384 488
385 return true; 489 return true;
386} 490}
387 491
388void 492void
389rxvt_display::ref_next () 493rxvt_display::ref_next ()
390{ 494{
391 // TODO: somehow check wether the database files/resources changed 495 // TODO: somehow check wether the database files/resources changed
392 // before re-loading/parsing 496 // before affording re-loading/parsing
393 XrmDestroyDatabase (XrmGetDatabase (display)); 497 XrmDestroyDatabase (XrmGetDatabase (dpy));
394 XrmSetDatabase (display, get_resources ()); 498 XrmSetDatabase (dpy, get_resources (true));
395} 499}
396 500
397rxvt_display::~rxvt_display () 501rxvt_display::~rxvt_display ()
398{ 502{
399 if (!display) 503 if (!dpy)
400 return; 504 return;
401 505
402#ifdef POINTER_BLANK 506#ifdef POINTER_BLANK
403 XFreeCursor (display, blank_cursor); 507 XFreeCursor (dpy, blank_cursor);
404#endif 508#endif
405 x_ev.stop (); 509 x_ev.stop ();
406#ifdef USE_XIM 510#ifdef USE_XIM
407 xims.clear (); 511 xims.clear ();
408#endif 512#endif
409 XCloseDisplay (display); 513 XCloseDisplay (dpy);
410} 514}
411 515
412#ifdef USE_XIM 516#ifdef USE_XIM
413void rxvt_display::im_change_cb () 517void rxvt_display::im_change_cb ()
414{ 518{
… …
422 // registers, as xlib crashes due to a race otherwise. 526 // registers, as xlib crashes due to a race otherwise.
423 Atom actual_type, *atoms; 527 Atom actual_type, *atoms;
424 int actual_format; 528 int actual_format;
425 unsigned long nitems, bytes_after; 529 unsigned long nitems, bytes_after;
426 530
427 if (XGetWindowProperty (display, root, xa[XA_XIM_SERVERS], 0L, 1000000L, 531 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
428 False, XA_ATOM, &actual_type, &actual_format, 532 False, XA_ATOM, &actual_type, &actual_format,
429 &nitems, &bytes_after, (unsigned char **)&atoms) 533 &nitems, &bytes_after, (unsigned char **)&atoms)
430 != Success ) 534 != Success )
431 return; 535 return;
432 536
433 if (actual_type == XA_ATOM && actual_format == 32) 537 if (actual_type == XA_ATOM && actual_format == 32)
434 for (int i = 0; i < nitems; i++) 538 for (int i = 0; i < nitems; i++)
435 if (XGetSelectionOwner (display, atoms[i])) 539 if (XGetSelectionOwner (dpy, atoms[i]))
436 { 540 {
437 im_change_cb (); 541 im_change_cb ();
438 break; 542 break;
439 } 543 }
440 544
… …
445void rxvt_display::x_cb (io_watcher &w, short revents) 549void rxvt_display::x_cb (io_watcher &w, short revents)
446{ 550{
447 do 551 do
448 { 552 {
449 XEvent xev; 553 XEvent xev;
450 XNextEvent (display, &xev); 554 XNextEvent (dpy, &xev);
451 555
452#ifdef USE_XIM 556#ifdef USE_XIM
453 if (!XFilterEvent (&xev, None)) 557 if (!XFilterEvent (&xev, None))
454 { 558 {
455 if (xev.type == PropertyNotify 559 if (xev.type == PropertyNotify
… …
466 } 570 }
467#ifdef USE_XIM 571#ifdef USE_XIM
468 } 572 }
469#endif 573#endif
470 } 574 }
471 while (XEventsQueued (display, QueuedAlready)); 575 while (XEventsQueued (dpy, QueuedAlready));
472 576
473 XFlush (display); 577 XFlush (dpy);
474} 578}
475 579
476void rxvt_display::flush () 580void rxvt_display::flush ()
477{ 581{
478 if (XEventsQueued (display, QueuedAlready)) 582 if (XEventsQueued (dpy, QueuedAlready))
479 x_cb (x_ev, EVENT_READ); 583 x_cb (x_ev, EVENT_READ);
480 584
481 XFlush (display); 585 XFlush (dpy);
482} 586}
483 587
484void rxvt_display::reg (xevent_watcher *w) 588void rxvt_display::reg (xevent_watcher *w)
485{ 589{
590 if (!w->active)
591 {
486 xw.push_back (w); 592 xw.push_back (w);
487 w->active = xw.size (); 593 w->active = xw.size ();
594 }
488} 595}
489 596
490void rxvt_display::unreg (xevent_watcher *w) 597void rxvt_display::unreg (xevent_watcher *w)
491{ 598{
492 if (w->active) 599 if (w->active)
600 {
493 xw[w->active - 1] = 0; 601 xw[w->active - 1] = 0;
602 w->active = 0;
603 }
494} 604}
495 605
496void rxvt_display::set_selection_owner (rxvt_term *owner) 606void rxvt_display::set_selection_owner (rxvt_term *owner)
497{ 607{
498 if (selection_owner && selection_owner != owner) 608 if (selection_owner && selection_owner != owner)
… …
500 610
501 selection_owner = owner; 611 selection_owner = owner;
502} 612}
503 613
504#ifdef USE_XIM 614#ifdef USE_XIM
615
505void rxvt_display::reg (im_watcher *w) 616void rxvt_display::reg (im_watcher *w)
506{ 617{
507 imw.push_back (w); 618 imw.push_back (w);
508} 619}
509 620
… …
533 return xim; 644 return xim;
534} 645}
535 646
536void rxvt_display::put_xim (rxvt_xim *xim) 647void rxvt_display::put_xim (rxvt_xim *xim)
537{ 648{
538#if XLIB_IS_RACEFREE 649# if XLIB_IS_RACEFREE
539 xims.put (xim); 650 xims.put (xim);
540#endif 651# endif
541} 652}
653
542#endif 654#endif
543 655
544Atom rxvt_display::atom (const char *name) 656Atom rxvt_display::atom (const char *name)
545{ 657{
546 return XInternAtom (display, name, False); 658 return XInternAtom (dpy, name, False);
547} 659}
548 660
549///////////////////////////////////////////////////////////////////////////// 661/////////////////////////////////////////////////////////////////////////////
550 662
551template class refcache<rxvt_display>; 663template class refcache<rxvt_display>;
552refcache<rxvt_display> displays; 664refcache<rxvt_display> displays;
553 665
554///////////////////////////////////////////////////////////////////////////// 666/////////////////////////////////////////////////////////////////////////////
555 667//
668
669static unsigned int
670insert_component (unsigned int value, unsigned int mask, unsigned int shift)
671{
672 return (value * (mask + 1) >> 16) << shift;
673}
674
675bool
676rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
677{
678#if XFT
679 XRenderPictFormat *format;
680
681 // FUCKING Xft gets it wrong, of course, so work around it.
682 // Transparency users should eat shit and die, and then
683 // XRenderQueryPictIndexValues themselves plenty.
684 if ((screen->visual->c_class == TrueColor)
685 && (format = XRenderFindVisualFormat (screen->dpy, screen->visual)))
686 {
687 // the fun lies in doing everything manually...
688 c.color.red = color.r;
689 c.color.green = color.g;
690 c.color.blue = color.b;
691 c.color.alpha = color.a;
692
693 c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red )
694 | insert_component (color.g, format->direct.greenMask, format->direct.green)
695 | insert_component (color.b, format->direct.blueMask , format->direct.blue )
696 | insert_component (color.a, format->direct.alphaMask, format->direct.alpha);
697
698 return true;
699 }
700 else
701 {
702 XRenderColor d;
703
704 d.red = color.r;
705 d.green = color.g;
706 d.blue = color.b;
707 d.alpha = color.a;
708
709 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
710 }
711#else
712 c.red = color.r;
713 c.green = color.g;
714 c.blue = color.b;
715
716 if (screen->visual->c_class == TrueColor)
717 {
718 c.pixel = (color.r >> (16 - popcount (screen->visual->red_mask )) << ctz (screen->visual->red_mask ))
719 | (color.g >> (16 - popcount (screen->visual->green_mask)) << ctz (screen->visual->green_mask))
720 | (color.b >> (16 - popcount (screen->visual->blue_mask )) << ctz (screen->visual->blue_mask ));
721
722 return true;
723 }
724 else if (XAllocColor (screen->dpy, screen->cmap, &c))
725 return true;
726 else
727 c.pixel = (color.r + color.g + color.b) > 128*3
728 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
729 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
730#endif
731
732 return false;
733}
734
556bool 735bool
557rxvt_color::set (rxvt_screen *screen, const char *name) 736rxvt_color::set (rxvt_screen *screen, const char *name)
558{ 737{
738 rgba c;
739 char eos;
740 int skip;
741
742 // parse the nonstandard "[alphapercent]" prefix
743 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
744 {
745 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
746 name += skip;
747 }
748 else
749 c.a = rgba::MAX_CC;
750
751 // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format
752 if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos))
753 {
754 XColor xc, xc_exact;
755
756 if (XParseColor (screen->dpy, screen->cmap, name, &xc))
757 {
758 c.r = xc.red;
759 c.g = xc.green;
760 c.b = xc.blue;
761 }
762 else
763 {
764 c.r = 0xffff;
765 c.g = 0x6969;
766 c.b = 0xb4b4;
767
768 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
769 }
770 }
771
772 return set (screen, c);
773}
774
775bool
776rxvt_color::set (rxvt_screen *screen, const rgba &color)
777{
778 bool got = alloc (screen, color);
779
780#if !ENABLE_MINIMAL
781 int cmap_size = screen->visual->map_entries;
782
783 if (!got
784 && screen->visual->c_class == PseudoColor
785 && cmap_size < 4096)
786 {
787 XColor *colors = new XColor [screen->visual->map_entries];
788
789 for (int i = 0; i < cmap_size; i++)
790 colors [i].pixel = i;
791
792 // many kilobytes transfer per colour, but pseudocolor isn't worth
793 // many extra optimisations.
794 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
795
796 int diff = 0x7fffffffUL;
797 XColor *best = colors;
798
799 for (int i = 0; i < cmap_size; i++)
800 {
801 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
802 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
803 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
804
805 if (d < diff)
806 {
807 diff = d;
808 best = colors + i;
809 }
810 }
811
812 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
813 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
814
815 got = alloc (screen, rgba (best->red, best->green, best->blue));
816
817 delete [] colors;
818 }
819#endif
820
821 return got;
822}
823
824void
825rxvt_color::get (rgba &color)
826{
559#if XFT 827#if XFT
560 int l = strlen (name); 828 color.r = c.color.red;
561 rxvt_rgba r; 829 color.g = c.color.green;
562 char eos; 830 color.b = c.color.blue;
563 int mult; 831 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 832#else
590 XColor xc; 833 color.r = c.red;
591 834 color.g = c.green;
592 if (XParseColor (screen->xdisp, screen->cmap, name, &xc)) 835 color.b = c.blue;
593 return set (screen, rxvt_rgba (xc.red, xc.green, xc.blue)); 836 color.a = rgba::MAX_CC;
594
595 return false;
596#endif 837#endif
597} 838}
598 839
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 XColor xc;
639
640 xc.red = rgba.r;
641 xc.green = rgba.g;
642 xc.blue = rgba.b;
643 xc.flags = DoRed | DoGreen | DoBlue;
644
645 if (XAllocColor (screen->xdisp, screen->cmap, &xc))
646 {
647 p = xc.pixel;
648 return true;
649 }
650
651 return false;
652#endif
653}
654
655void 840void
656rxvt_color::get (rxvt_screen *screen, rxvt_rgba &rgba) 841rxvt_color::get (XColor &color)
657{ 842{
658#if XFT 843 rgba c;
659 rgba.r = c.color.red; 844 get (c);
660 rgba.g = c.color.green;
661 rgba.b = c.color.blue;
662 rgba.a = c.color.alpha;
663#else
664 XColor c;
665 845
666 c.pixel = p; 846 color.red = c.r;
667 XQueryColor (screen->xdisp, screen->cmap, &c); 847 color.green = c.g;
668 848 color.blue = c.b;
669 rgba.r = c.red; 849 color.pixel = (Pixel)*this;
670 rgba.g = c.green;
671 rgba.b = c.blue;
672 rgba.a = rxvt_rgba::MAX_CC;
673#endif
674} 850}
675 851
676void 852void
677rxvt_color::free (rxvt_screen *screen) 853rxvt_color::free (rxvt_screen *screen)
678{ 854{
855 if (screen->visual->c_class == TrueColor)
856 return; // nothing to do
857
679#if XFT 858#if XFT
680 XftColorFree (screen->xdisp, screen->visual, screen->cmap, &c); 859 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
681#else 860#else
682 XFreeColors (screen->xdisp, screen->cmap, &p, 1, AllPlanes); 861 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
683#endif 862#endif
684} 863}
685 864
686rxvt_color 865void
687rxvt_color::fade (rxvt_screen *screen, int percent)
688{
689 rxvt_color faded;
690
691 rxvt_rgba c;
692 get (screen, c);
693
694 c.r = lerp (0, c.r, percent);
695 c.g = lerp (0, c.g, percent);
696 c.b = lerp (0, c.b, percent);
697
698 faded.set (screen, c);
699
700 return faded;
701}
702
703rxvt_color
704rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &fadeto) 866rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
705{ 867{
706 rxvt_rgba c, fc; 868 rgba c;
707 rxvt_color faded; 869 get (c);
708
709 get (screen, c);
710 fadeto.get (screen, fc);
711 870
712 faded.set ( 871 result.set (
713 screen, 872 screen,
714 rxvt_rgba ( 873 rgba (
715 lerp (fc.r, c.r, percent), 874 lerp (c.r, to.r, percent),
716 lerp (fc.g, c.g, percent), 875 lerp (c.g, to.g, percent),
717 lerp (fc.b, c.b, percent), 876 lerp (c.b, to.b, percent),
718 lerp (fc.a, c.a, percent) 877 lerp (c.a, to.a, percent)
719 ) 878 )
720 ); 879 );
721
722 return faded;
723} 880}
724 881

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