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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.26 by root, Wed Jan 25 21:03:04 2006 UTC vs.
Revision 1.57 by root, Mon Feb 20 22:42:01 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>
33
34#if XFT
35# include <X11/extensions/Xrender.h>
35#endif 36#endif
36 37
37const char *const xa_names[] = 38const char *const xa_names[] =
38 { 39{
39 "TEXT", 40 "TEXT",
40 "COMPOUND_TEXT", 41 "COMPOUND_TEXT",
41 "UTF8_STRING", 42 "UTF8_STRING",
42 "MULTIPLE", 43 "MULTIPLE",
43 "TARGETS", 44 "TARGETS",
44 "TIMESTAMP", 45 "TIMESTAMP",
45 "VT_SELECTION", 46 "VT_SELECTION",
46 "INCR", 47 "INCR",
47 "WM_PROTOCOLS", 48 "WM_PROTOCOLS",
48 "WM_DELETE_WINDOW", 49 "WM_DELETE_WINDOW",
49 "CLIPBOARD", 50 "CLIPBOARD",
51 "AVERAGE_WIDTH",
52 "WEIGHT_NAME",
53 "SLANT",
54 "CHARSET_REGISTRY",
55 "CHARSET_ENCODING",
50#if ENABLE_FRILLS 56#if ENABLE_FRILLS
51 "_MOTIF_WM_HINTS", 57 "_MOTIF_WM_HINTS",
52#endif 58#endif
53#if ENABLE_EWMH 59#if ENABLE_EWMH
54 "_NET_WM_PID", 60 "_NET_WM_PID",
55 "_NET_WM_NAME", 61 "_NET_WM_NAME",
56 "_NET_WM_ICON_NAME", 62 "_NET_WM_ICON_NAME",
57 "_NET_WM_PING", 63 "_NET_WM_PING",
58#endif 64#endif
59#if USE_XIM 65#if USE_XIM
60 "WM_LOCALE_NAME", 66 "WM_LOCALE_NAME",
61 "XIM_SERVERS", 67 "XIM_SERVERS",
62#endif 68#endif
63#ifdef TRANSPARENT 69#ifdef TRANSPARENT
64 "_XROOTPMAP_ID", 70 "_XROOTPMAP_ID",
65 "ESETROOT_PMAP_ID", 71 "ESETROOT_PMAP_ID",
66#endif 72#endif
67#if ENABLE_XEMBED 73#if ENABLE_XEMBED
68 "_XEMBED", 74 "_XEMBED",
69 "_XEMBED_INFO", 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",
70#endif 90# endif
71 }; 91#endif
92};
72 93
73///////////////////////////////////////////////////////////////////////////// 94/////////////////////////////////////////////////////////////////////////////
74 95
75refcounted::refcounted (const char *id) 96refcounted::refcounted (const char *id)
76{ 97{
… …
153bool 174bool
154rxvt_xim::ref_init () 175rxvt_xim::ref_init ()
155{ 176{
156 display = GET_R->display; //HACK: TODO 177 display = GET_R->display; //HACK: TODO
157 178
158 xim = XOpenIM (display->display, NULL, NULL, NULL); 179 xim = XOpenIM (display->dpy, 0, 0, 0);
159 180
160 if (!xim) 181 if (!xim)
161 return false; 182 return false;
162 183
163 XIMCallback ximcallback; 184 XIMCallback ximcallback;
164 ximcallback.client_data = (XPointer)this; 185 ximcallback.client_data = (XPointer)this;
165 ximcallback.callback = im_destroy_cb; 186 ximcallback.callback = im_destroy_cb;
166 187
167 XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL); 188 XSetIMValues (xim, XNDestroyCallback, &ximcallback, 0);
168 189
169 return true; 190 return true;
170} 191}
171 192
172rxvt_xim::~rxvt_xim () 193rxvt_xim::~rxvt_xim ()
… …
177 198
178#endif 199#endif
179 200
180///////////////////////////////////////////////////////////////////////////// 201/////////////////////////////////////////////////////////////////////////////
181 202
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
182void 253void
183rxvt_screen::set (rxvt_display *disp) 254rxvt_screen::set (rxvt_display *disp)
184{ 255{
185 display = disp; 256 display = disp;
186
187 xdisp = disp->display; 257 dpy = disp->dpy;
188 258
189 Screen *screen = ScreenOfDisplay (xdisp, disp->screen); 259 Screen *screen = ScreenOfDisplay (dpy, disp->screen);
190 260
191 depth = DefaultDepthOfScreen (screen); 261 depth = DefaultDepthOfScreen (screen);
192 visual = DefaultVisualOfScreen (screen); 262 visual = DefaultVisualOfScreen (screen);
193 cmap = DefaultColormapOfScreen (screen); 263 cmap = DefaultColormapOfScreen (screen);
194} 264}
195 265
196void 266void
197rxvt_screen::set (rxvt_display *disp, int depth) 267rxvt_screen::set (rxvt_display *disp, int bitdepth)
198{ 268{
199 set (disp); 269 set (disp);
200 270
271#if XFT
201 XVisualInfo vinfo; 272 XVisualInfo vinfo;
202 273
203 if (XMatchVisualInfo (xdisp, display->screen, depth, TrueColor, &vinfo)) 274 if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo))
204 { 275 {
205 this->depth = depth; 276 depth = bitdepth;
206 this->visual = vinfo.visual; 277 visual = vinfo.visual;
207 this->cmap = XCreateColormap (xdisp, disp->root, visual, AllocNone); 278 cmap = XCreateColormap (dpy, disp->root, visual, AllocNone);
208 } 279 }
280#endif
209} 281}
210 282
211void 283void
212rxvt_screen::clear () 284rxvt_screen::clear ()
213{ 285{
286#if XFT
287 if (scratch_area)
288 {
289 XFreePixmap (dpy, scratch_area->drawable);
290 delete scratch_area;
291 }
292#endif
293
214 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (xdisp, display->screen))) 294 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (dpy, display->screen)))
215 XFreeColormap (xdisp, cmap); 295 XFreeColormap (dpy, cmap);
216} 296}
217 297
218///////////////////////////////////////////////////////////////////////////// 298/////////////////////////////////////////////////////////////////////////////
219 299
220rxvt_display::rxvt_display (const char *id) 300rxvt_display::rxvt_display (const char *id)
… …
223, selection_owner (0) 303, selection_owner (0)
224{ 304{
225} 305}
226 306
227XrmDatabase 307XrmDatabase
228rxvt_display::get_resources () 308rxvt_display::get_resources (bool refresh)
229{ 309{
230 char *homedir = (char *)getenv ("HOME"); 310 char *homedir = (char *)getenv ("HOME");
231 char fname[1024]; 311 char fname[1024];
232 312
233 /* 313 /*
234 * get resources using the X library function 314 * get resources using the X library function
235 */ 315 */
236 char *displayResource, *xe; 316 char *displayResource, *xe;
237 XrmDatabase database, rdb1; 317 XrmDatabase rdb1, database = 0;
238
239 database = NULL;
240 318
241 // 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
242 320
243 // 6. System wide per application default file. 321 // 6. System wide per application default file.
244 322
… …
254 // 5. User's per application default file. 332 // 5. User's per application default file.
255 // none 333 // none
256 334
257 // 4. User's defaults file. 335 // 4. User's defaults file.
258 /* 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
259 displayResource = XResourceManagerString (display); 370 displayResource = XResourceManagerString (dpy);
260 371
261 if (displayResource != NULL) 372 if (displayResource)
262 { 373 {
263 if ((rdb1 = XrmGetStringDatabase (displayResource))) 374 if ((rdb1 = XrmGetStringDatabase (displayResource)))
264 XrmMergeDatabases (rdb1, &database); 375 XrmMergeDatabases (rdb1, &database);
265 } 376 }
266 else if (homedir) 377 else if (homedir)
… …
269 380
270 if ((rdb1 = XrmGetFileDatabase (fname))) 381 if ((rdb1 = XrmGetFileDatabase (fname)))
271 XrmMergeDatabases (rdb1, &database); 382 XrmMergeDatabases (rdb1, &database);
272 } 383 }
273 384
385#if !XLIB_ILLEGAL_ACCESS
386 if (refresh && displayResource)
387 XFree (displayResource);
388#endif
389
274 /* Get screen specific resources */ 390 /* Get screen specific resources */
275 displayResource = XScreenResourceString (ScreenOfDisplay (display, screen)); 391 displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen));
276 392
277 if (displayResource != NULL) 393 if (displayResource)
278 { 394 {
279 if ((rdb1 = XrmGetStringDatabase (displayResource))) 395 if ((rdb1 = XrmGetStringDatabase (displayResource)))
280 /* Merge with screen-independent resources */ 396 /* Merge with screen-independent resources */
281 XrmMergeDatabases (rdb1, &database); 397 XrmMergeDatabases (rdb1, &database);
282 398
… …
310 if (id[0] == ':') 426 if (id[0] == ':')
311 { 427 {
312 val = rxvt_malloc (5 + strlen (id) + 1); 428 val = rxvt_malloc (5 + strlen (id) + 1);
313 strcpy (val, "unix/"); 429 strcpy (val, "unix/");
314 strcat (val, id); 430 strcat (val, id);
315 display = XOpenDisplay (val); 431 dpy = XOpenDisplay (val);
316 free (val); 432 free (val);
317 } 433 }
318 else 434 else
319#endif 435#endif
320 display = 0; 436 dpy = 0;
321 437
322 if (!display) 438 if (!dpy)
323 display = XOpenDisplay (id); 439 dpy = XOpenDisplay (id);
324 440
325 if (!display) 441 if (!dpy)
326 return false; 442 return false;
327 443
328 screen = DefaultScreen (display); 444 screen = DefaultScreen (dpy);
329 root = DefaultRootWindow (display); 445 root = DefaultRootWindow (dpy);
330 446
331 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA); 447 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
332 XInternAtoms (display, (char **)xa_names, NUM_XA, False, xa); 448 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
333 449
334 XrmSetDatabase (display, get_resources ()); 450 XrmSetDatabase (dpy, get_resources (false));
335 451
336#ifdef POINTER_BLANK 452#ifdef POINTER_BLANK
337 XColor blackcolour; 453 XColor blackcolour;
338 blackcolour.red = 0; 454 blackcolour.red = 0;
339 blackcolour.green = 0; 455 blackcolour.green = 0;
340 blackcolour.blue = 0; 456 blackcolour.blue = 0;
341 Font f = XLoadFont (display, "fixed"); 457 Font f = XLoadFont (dpy, "fixed");
342 blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', 458 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
343 &blackcolour, &blackcolour); 459 &blackcolour, &blackcolour);
344 XUnloadFont (display, f); 460 XUnloadFont (dpy, f);
345#endif 461#endif
346 462
347 int fd = XConnectionNumber (display); 463 int fd = XConnectionNumber (dpy);
348 464
349#ifndef NO_SLOW_LINK_SUPPORT
350 // try to detect wether we have a local connection. 465 // try to detect wether we have a local connection.
351 // assume unix domains socket == local, everything else not 466 // assume unix domains socket == local, everything else not
352 // TODO: might want to check for inet/127.0.0.1 467 // TODO: might want to check for inet/127.0.0.1
353 is_local = 0; 468 is_local = 0;
354 sockaddr_un sa; 469 sockaddr_un sa;
355 socklen_t sl = sizeof (sa); 470 socklen_t sl = sizeof (sa);
356 471
357 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 472 if (!getsockname (fd, (sockaddr *)&sa, &sl))
358 is_local = sa.sun_family == AF_LOCAL; 473 is_local = sa.sun_family == AF_LOCAL;
359#endif
360 474
361 x_ev.start (fd, EVENT_READ); 475 x_ev.start (fd, EVENT_READ);
362 fcntl (fd, F_SETFD, FD_CLOEXEC); 476 fcntl (fd, F_SETFD, FD_CLOEXEC);
363 477
364 XSelectInput (display, root, PropertyChangeMask); 478 XSelectInput (dpy, root, PropertyChangeMask);
365 479
366 flush (); 480 flush ();
367 481
368 return true; 482 return true;
369} 483}
370 484
371void 485void
372rxvt_display::ref_next () 486rxvt_display::ref_next ()
373{ 487{
374 // TODO: somehow check wether the database files/resources changed 488 // TODO: somehow check wether the database files/resources changed
375 // before re-loading/parsing 489 // before affording re-loading/parsing
376 XrmDestroyDatabase (XrmGetDatabase (display)); 490 XrmDestroyDatabase (XrmGetDatabase (dpy));
377 XrmSetDatabase (display, get_resources ()); 491 XrmSetDatabase (dpy, get_resources (true));
378} 492}
379 493
380rxvt_display::~rxvt_display () 494rxvt_display::~rxvt_display ()
381{ 495{
382 if (!display) 496 if (!dpy)
383 return; 497 return;
384 498
385#ifdef POINTER_BLANK 499#ifdef POINTER_BLANK
386 XFreeCursor (display, blank_cursor); 500 XFreeCursor (dpy, blank_cursor);
387#endif 501#endif
388 x_ev.stop (); 502 x_ev.stop ();
389#ifdef USE_XIM 503#ifdef USE_XIM
390 xims.clear (); 504 xims.clear ();
391#endif 505#endif
392 XCloseDisplay (display); 506 XCloseDisplay (dpy);
393} 507}
394 508
395#ifdef USE_XIM 509#ifdef USE_XIM
396void rxvt_display::im_change_cb () 510void rxvt_display::im_change_cb ()
397{ 511{
… …
405 // registers, as xlib crashes due to a race otherwise. 519 // registers, as xlib crashes due to a race otherwise.
406 Atom actual_type, *atoms; 520 Atom actual_type, *atoms;
407 int actual_format; 521 int actual_format;
408 unsigned long nitems, bytes_after; 522 unsigned long nitems, bytes_after;
409 523
410 if (XGetWindowProperty (display, root, xa[XA_XIM_SERVERS], 0L, 1000000L, 524 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
411 False, XA_ATOM, &actual_type, &actual_format, 525 False, XA_ATOM, &actual_type, &actual_format,
412 &nitems, &bytes_after, (unsigned char **)&atoms) 526 &nitems, &bytes_after, (unsigned char **)&atoms)
413 != Success ) 527 != Success )
414 return; 528 return;
415 529
416 if (actual_type == XA_ATOM && actual_format == 32) 530 if (actual_type == XA_ATOM && actual_format == 32)
417 for (int i = 0; i < nitems; i++) 531 for (int i = 0; i < nitems; i++)
418 if (XGetSelectionOwner (display, atoms[i])) 532 if (XGetSelectionOwner (dpy, atoms[i]))
419 { 533 {
420 im_change_cb (); 534 im_change_cb ();
421 break; 535 break;
422 } 536 }
423 537
… …
428void rxvt_display::x_cb (io_watcher &w, short revents) 542void rxvt_display::x_cb (io_watcher &w, short revents)
429{ 543{
430 do 544 do
431 { 545 {
432 XEvent xev; 546 XEvent xev;
433 XNextEvent (display, &xev); 547 XNextEvent (dpy, &xev);
434 548
435#ifdef USE_XIM 549#ifdef USE_XIM
436 if (!XFilterEvent (&xev, None)) 550 if (!XFilterEvent (&xev, None))
437 { 551 {
438 if (xev.type == PropertyNotify 552 if (xev.type == PropertyNotify
… …
449 } 563 }
450#ifdef USE_XIM 564#ifdef USE_XIM
451 } 565 }
452#endif 566#endif
453 } 567 }
454 while (XEventsQueued (display, QueuedAlready)); 568 while (XEventsQueued (dpy, QueuedAlready));
455 569
456 XFlush (display); 570 XFlush (dpy);
457} 571}
458 572
459void rxvt_display::flush () 573void rxvt_display::flush ()
460{ 574{
461 if (XEventsQueued (display, QueuedAlready)) 575 if (XEventsQueued (dpy, QueuedAlready))
462 x_cb (x_ev, EVENT_READ); 576 x_cb (x_ev, EVENT_READ);
463 577
464 XFlush (display); 578 XFlush (dpy);
465} 579}
466 580
467void rxvt_display::reg (xevent_watcher *w) 581void rxvt_display::reg (xevent_watcher *w)
468{ 582{
469 xw.push_back (w); 583 xw.push_back (w);
… …
483 597
484 selection_owner = owner; 598 selection_owner = owner;
485} 599}
486 600
487#ifdef USE_XIM 601#ifdef USE_XIM
602
488void rxvt_display::reg (im_watcher *w) 603void rxvt_display::reg (im_watcher *w)
489{ 604{
490 imw.push_back (w); 605 imw.push_back (w);
491} 606}
492 607
… …
516 return xim; 631 return xim;
517} 632}
518 633
519void rxvt_display::put_xim (rxvt_xim *xim) 634void rxvt_display::put_xim (rxvt_xim *xim)
520{ 635{
521#if XLIB_IS_RACEFREE 636# if XLIB_IS_RACEFREE
522 xims.put (xim); 637 xims.put (xim);
523#endif 638# endif
524} 639}
640
525#endif 641#endif
526 642
527Atom rxvt_display::atom (const char *name) 643Atom rxvt_display::atom (const char *name)
528{ 644{
529 return XInternAtom (display, name, False); 645 return XInternAtom (dpy, name, False);
530} 646}
531 647
532///////////////////////////////////////////////////////////////////////////// 648/////////////////////////////////////////////////////////////////////////////
533 649
534template class refcache<rxvt_display>; 650template class refcache<rxvt_display>;
535refcache<rxvt_display> displays; 651refcache<rxvt_display> displays;
536 652
537///////////////////////////////////////////////////////////////////////////// 653/////////////////////////////////////////////////////////////////////////////
538 654
539bool 655bool
540rxvt_color::set (rxvt_screen *screen, Pixel p) 656rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
541{ 657{
542#if XFT 658#if XFT
543 XColor xc; 659 XRenderPictFormat *format;
544 660
545 xc.pixel = p; 661 // FUCKING Xft gets it wrong, of course, so work around it.
546 if (!XQueryColor (screen->xdisp, screen->cmap, &xc)) 662 // Transparency users should eat shit and die, and then
547 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;
548 672
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 {
549 XRenderColor d; 682 XRenderColor d;
550 683
551 d.red = xc.red; 684 d.red = color.r;
552 d.green = xc.green; 685 d.green = color.g;
553 d.blue = xc.blue; 686 d.blue = color.b;
554 d.alpha = 0xffff; 687 d.alpha = color.a;
555 688
556 return 689 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
557 XftColorAllocValue (screen->xdisp, 690 }
558 screen->visual,
559 screen->cmap,
560 &d, &c);
561#else 691#else
562 this->p = p; 692 c.red = color.r;
563#endif 693 c.green = color.g;
694 c.blue = color.b;
564 695
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))
565 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;
566} 716}
567 717
568bool 718bool
569rxvt_color::set (rxvt_screen *screen, const char *name) 719rxvt_color::set (rxvt_screen *screen, const char *name)
570{ 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)
809{
571#if XFT 810#if XFT
572 return XftColorAllocName (screen->xdisp, screen->visual, screen->cmap, name, &c); 811 color.r = c.color.red;
812 color.g = c.color.green;
813 color.b = c.color.blue;
814 color.a = c.color.alpha;
573#else 815#else
574 XColor xc; 816 color.r = c.red;
575 817 color.g = c.green;
576 if (XParseColor (screen->xdisp, screen->cmap, name, &xc)) 818 color.b = c.blue;
577 return set (screen, xc.red, xc.green, xc.blue); 819 color.a = rgba::MAX_CC;
578
579 return false;
580#endif 820#endif
581} 821}
582 822
583bool
584rxvt_color::set (rxvt_screen *screen, unsigned short cr, unsigned short cg, unsigned short cb)
585{
586 XColor xc;
587
588 xc.red = cr;
589 xc.green = cg;
590 xc.blue = cb;
591 xc.flags = DoRed | DoGreen | DoBlue;
592
593 if (XAllocColor (screen->xdisp, screen->cmap, &xc))
594 return set (screen, xc.pixel);
595
596 return false;
597}
598
599void 823void
600rxvt_color::get (rxvt_screen *screen, unsigned short &cr, unsigned short &cg, unsigned short &cb) 824rxvt_color::get (XColor &color)
601{ 825{
602#if XFT 826 rgba c;
603 cr = c.color.red; 827 get (c);
604 cg = c.color.green;
605 cb = c.color.blue;
606#else
607 XColor c;
608 828
609 c.pixel = p; 829 color.red = c.r;
610 XQueryColor (screen->xdisp, screen->cmap, &c); 830 color.green = c.g;
611 831 color.blue = c.b;
612 cr = c.red; 832 color.pixel = (Pixel)*this;
613 cg = c.green;
614 cb = c.blue;
615#endif
616} 833}
617 834
618void 835void
619rxvt_color::free (rxvt_screen *screen) 836rxvt_color::free (rxvt_screen *screen)
620{ 837{
838 if (screen->visual->c_class == TrueColor)
839 return; // nothing to do
840
621#if XFT 841#if XFT
622 XftColorFree (screen->xdisp, screen->visual, screen->cmap, &c); 842 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
623#else 843#else
624 XFreeColors (screen->xdisp, screen->cmap, &p, 1, AllPlanes); 844 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
625#endif 845#endif
626} 846}
627 847
628rxvt_color 848void
629rxvt_color::fade (rxvt_screen *screen, int percent) 849rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
630{ 850{
631 percent = 100 - percent; 851 rgba c;
852 get (c);
632 853
633 unsigned short cr, cg, cb; 854 result.set (
634 rxvt_color faded;
635
636 get (screen, cr, cg, cb);
637
638 faded.set (
639 screen, 855 screen,
640 cr * percent / 100, 856 rgba (
641 cg * percent / 100, 857 lerp (c.r, to.r, percent),
642 cb * percent / 100 858 lerp (c.g, to.g, percent),
859 lerp (c.b, to.b, percent),
860 lerp (c.a, to.a, percent)
861 )
643 ); 862 );
644
645 return faded;
646} 863}
647 864
648#define LERP(a,b,p) (a * p + b * (100 - p)) / 100
649
650rxvt_color
651rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &fadeto)
652{
653 percent = 100 - percent;
654
655 unsigned short cr, cg, cb;
656 unsigned short fcr, fcg, fcb;
657 rxvt_color faded;
658
659 get (screen, cr, cg, cb);
660 fadeto.get (screen, fcr, fcg, fcb);
661
662 faded.set (
663 screen,
664 LERP (cr, fcr, percent),
665 LERP (cg, fcg, percent),
666 LERP (cb, fcb, percent)
667 );
668
669 return faded;
670}
671

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