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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 1.59 by root, Wed Jul 5 20:31:48 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::select_visual (int bitdepth)
198{ 268{
199 set (disp); 269#if XFT
200
201 XVisualInfo vinfo; 270 XVisualInfo vinfo;
202 271
203 if (XMatchVisualInfo (xdisp, display->screen, depth, TrueColor, &vinfo)) 272 if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo))
204 { 273 {
205 this->depth = depth; 274 depth = bitdepth;
206 this->visual = vinfo.visual; 275 visual = vinfo.visual;
207 this->cmap = XCreateColormap (xdisp, disp->root, visual, AllocNone); 276 cmap = XCreateColormap (dpy, display->root, visual, AllocNone);
208 } 277 }
278#endif
209} 279}
210 280
211void 281void
212rxvt_screen::clear () 282rxvt_screen::clear ()
213{ 283{
284#if XFT
285 if (scratch_area)
286 {
287 XFreePixmap (dpy, scratch_area->drawable);
288 delete scratch_area;
289 }
290#endif
291
214 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (xdisp, display->screen))) 292 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (dpy, display->screen)))
215 XFreeColormap (xdisp, cmap); 293 XFreeColormap (dpy, cmap);
216} 294}
217 295
218///////////////////////////////////////////////////////////////////////////// 296/////////////////////////////////////////////////////////////////////////////
219 297
220rxvt_display::rxvt_display (const char *id) 298rxvt_display::rxvt_display (const char *id)
… …
223, selection_owner (0) 301, selection_owner (0)
224{ 302{
225} 303}
226 304
227XrmDatabase 305XrmDatabase
228rxvt_display::get_resources () 306rxvt_display::get_resources (bool refresh)
229{ 307{
230 char *homedir = (char *)getenv ("HOME"); 308 char *homedir = (char *)getenv ("HOME");
231 char fname[1024]; 309 char fname[1024];
232 310
233 /* 311 /*
234 * get resources using the X library function 312 * get resources using the X library function
235 */ 313 */
236 char *displayResource, *xe; 314 char *displayResource, *xe;
237 XrmDatabase database, rdb1; 315 XrmDatabase rdb1, database = 0;
238
239 database = NULL;
240 316
241 // 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
242 318
243 // 6. System wide per application default file. 319 // 6. System wide per application default file.
244 320
… …
254 // 5. User's per application default file. 330 // 5. User's per application default file.
255 // none 331 // none
256 332
257 // 4. User's defaults file. 333 // 4. User's defaults file.
258 /* Get any Xserver defaults */ 334 /* Get any Xserver defaults */
335 if (refresh)
336 {
337 // fucking xlib keeps a copy of the rm string
338 Atom actual_type;
339 int actual_format;
340 unsigned long nitems, nremaining;
341 char *val = 0;
342
343#if XLIB_ILLEGAL_ACCESS
344 if (dpy->xdefaults)
345 XFree (dpy->xdefaults);
346#endif
347
348 if (XGetWindowProperty (dpy, RootWindow (dpy, 0), XA_RESOURCE_MANAGER,
349 0L, 100000000L, False,
350 XA_STRING, &actual_type, &actual_format,
351 &nitems, &nremaining,
352 (unsigned char **)&val) == Success
353 && actual_type == XA_STRING
354 && actual_format == 8)
355 displayResource = val;
356 else
357 {
358 displayResource = 0;
359 if (val)
360 XFree(val);
361 }
362
363#if XLIB_ILLEGAL_ACCESS
364 dpy->xdefaults = displayResource;
365#endif
366 }
367 else
259 displayResource = XResourceManagerString (display); 368 displayResource = XResourceManagerString (dpy);
260 369
261 if (displayResource != NULL) 370 if (displayResource)
262 { 371 {
263 if ((rdb1 = XrmGetStringDatabase (displayResource))) 372 if ((rdb1 = XrmGetStringDatabase (displayResource)))
264 XrmMergeDatabases (rdb1, &database); 373 XrmMergeDatabases (rdb1, &database);
265 } 374 }
266 else if (homedir) 375 else if (homedir)
… …
269 378
270 if ((rdb1 = XrmGetFileDatabase (fname))) 379 if ((rdb1 = XrmGetFileDatabase (fname)))
271 XrmMergeDatabases (rdb1, &database); 380 XrmMergeDatabases (rdb1, &database);
272 } 381 }
273 382
383#if !XLIB_ILLEGAL_ACCESS
384 if (refresh && displayResource)
385 XFree (displayResource);
386#endif
387
274 /* Get screen specific resources */ 388 /* Get screen specific resources */
275 displayResource = XScreenResourceString (ScreenOfDisplay (display, screen)); 389 displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen));
276 390
277 if (displayResource != NULL) 391 if (displayResource)
278 { 392 {
279 if ((rdb1 = XrmGetStringDatabase (displayResource))) 393 if ((rdb1 = XrmGetStringDatabase (displayResource)))
280 /* Merge with screen-independent resources */ 394 /* Merge with screen-independent resources */
281 XrmMergeDatabases (rdb1, &database); 395 XrmMergeDatabases (rdb1, &database);
282 396
… …
310 if (id[0] == ':') 424 if (id[0] == ':')
311 { 425 {
312 val = rxvt_malloc (5 + strlen (id) + 1); 426 val = rxvt_malloc (5 + strlen (id) + 1);
313 strcpy (val, "unix/"); 427 strcpy (val, "unix/");
314 strcat (val, id); 428 strcat (val, id);
315 display = XOpenDisplay (val); 429 dpy = XOpenDisplay (val);
316 free (val); 430 free (val);
317 } 431 }
318 else 432 else
319#endif 433#endif
320 display = 0; 434 dpy = 0;
321 435
322 if (!display) 436 if (!dpy)
323 display = XOpenDisplay (id); 437 dpy = XOpenDisplay (id);
324 438
325 if (!display) 439 if (!dpy)
326 return false; 440 return false;
327 441
328 screen = DefaultScreen (display); 442 screen = DefaultScreen (dpy);
329 root = DefaultRootWindow (display); 443 root = DefaultRootWindow (dpy);
330 444
331 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA); 445 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
332 XInternAtoms (display, (char **)xa_names, NUM_XA, False, xa); 446 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
333 447
334 XrmSetDatabase (display, get_resources ()); 448 XrmSetDatabase (dpy, get_resources (false));
335 449
336#ifdef POINTER_BLANK 450#ifdef POINTER_BLANK
337 XColor blackcolour; 451 XColor blackcolour;
338 blackcolour.red = 0; 452 blackcolour.red = 0;
339 blackcolour.green = 0; 453 blackcolour.green = 0;
340 blackcolour.blue = 0; 454 blackcolour.blue = 0;
341 Font f = XLoadFont (display, "fixed"); 455 Font f = XLoadFont (dpy, "fixed");
342 blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', 456 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
343 &blackcolour, &blackcolour); 457 &blackcolour, &blackcolour);
344 XUnloadFont (display, f); 458 XUnloadFont (dpy, f);
345#endif 459#endif
346 460
347 int fd = XConnectionNumber (display); 461 int fd = XConnectionNumber (dpy);
348 462
349#ifndef NO_SLOW_LINK_SUPPORT
350 // try to detect wether we have a local connection. 463 // try to detect wether we have a local connection.
351 // assume unix domains socket == local, everything else not 464 // assume unix domains socket == local, everything else not
352 // TODO: might want to check for inet/127.0.0.1 465 // TODO: might want to check for inet/127.0.0.1
353 is_local = 0; 466 is_local = 0;
354 sockaddr_un sa; 467 sockaddr_un sa;
355 socklen_t sl = sizeof (sa); 468 socklen_t sl = sizeof (sa);
356 469
357 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 470 if (!getsockname (fd, (sockaddr *)&sa, &sl))
358 is_local = sa.sun_family == AF_LOCAL; 471 is_local = sa.sun_family == AF_LOCAL;
359#endif
360 472
361 x_ev.start (fd, EVENT_READ); 473 x_ev.start (fd, EVENT_READ);
362 fcntl (fd, F_SETFD, FD_CLOEXEC); 474 fcntl (fd, F_SETFD, FD_CLOEXEC);
363 475
364 XSelectInput (display, root, PropertyChangeMask); 476 XSelectInput (dpy, root, PropertyChangeMask);
365 477
366 flush (); 478 flush ();
367 479
368 return true; 480 return true;
369} 481}
370 482
371void 483void
372rxvt_display::ref_next () 484rxvt_display::ref_next ()
373{ 485{
374 // TODO: somehow check wether the database files/resources changed 486 // TODO: somehow check wether the database files/resources changed
375 // before re-loading/parsing 487 // before affording re-loading/parsing
376 XrmDestroyDatabase (XrmGetDatabase (display)); 488 XrmDestroyDatabase (XrmGetDatabase (dpy));
377 XrmSetDatabase (display, get_resources ()); 489 XrmSetDatabase (dpy, get_resources (true));
378} 490}
379 491
380rxvt_display::~rxvt_display () 492rxvt_display::~rxvt_display ()
381{ 493{
382 if (!display) 494 if (!dpy)
383 return; 495 return;
384 496
385#ifdef POINTER_BLANK 497#ifdef POINTER_BLANK
386 XFreeCursor (display, blank_cursor); 498 XFreeCursor (dpy, blank_cursor);
387#endif 499#endif
388 x_ev.stop (); 500 x_ev.stop ();
389#ifdef USE_XIM 501#ifdef USE_XIM
390 xims.clear (); 502 xims.clear ();
391#endif 503#endif
392 XCloseDisplay (display); 504 XCloseDisplay (dpy);
393} 505}
394 506
395#ifdef USE_XIM 507#ifdef USE_XIM
396void rxvt_display::im_change_cb () 508void rxvt_display::im_change_cb ()
397{ 509{
… …
405 // registers, as xlib crashes due to a race otherwise. 517 // registers, as xlib crashes due to a race otherwise.
406 Atom actual_type, *atoms; 518 Atom actual_type, *atoms;
407 int actual_format; 519 int actual_format;
408 unsigned long nitems, bytes_after; 520 unsigned long nitems, bytes_after;
409 521
410 if (XGetWindowProperty (display, root, xa[XA_XIM_SERVERS], 0L, 1000000L, 522 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
411 False, XA_ATOM, &actual_type, &actual_format, 523 False, XA_ATOM, &actual_type, &actual_format,
412 &nitems, &bytes_after, (unsigned char **)&atoms) 524 &nitems, &bytes_after, (unsigned char **)&atoms)
413 != Success ) 525 != Success )
414 return; 526 return;
415 527
416 if (actual_type == XA_ATOM && actual_format == 32) 528 if (actual_type == XA_ATOM && actual_format == 32)
417 for (int i = 0; i < nitems; i++) 529 for (int i = 0; i < nitems; i++)
418 if (XGetSelectionOwner (display, atoms[i])) 530 if (XGetSelectionOwner (dpy, atoms[i]))
419 { 531 {
420 im_change_cb (); 532 im_change_cb ();
421 break; 533 break;
422 } 534 }
423 535
… …
428void rxvt_display::x_cb (io_watcher &w, short revents) 540void rxvt_display::x_cb (io_watcher &w, short revents)
429{ 541{
430 do 542 do
431 { 543 {
432 XEvent xev; 544 XEvent xev;
433 XNextEvent (display, &xev); 545 XNextEvent (dpy, &xev);
434 546
435#ifdef USE_XIM 547#ifdef USE_XIM
436 if (!XFilterEvent (&xev, None)) 548 if (!XFilterEvent (&xev, None))
437 { 549 {
438 if (xev.type == PropertyNotify 550 if (xev.type == PropertyNotify
… …
449 } 561 }
450#ifdef USE_XIM 562#ifdef USE_XIM
451 } 563 }
452#endif 564#endif
453 } 565 }
454 while (XEventsQueued (display, QueuedAlready)); 566 while (XEventsQueued (dpy, QueuedAlready));
455 567
456 XFlush (display); 568 XFlush (dpy);
457} 569}
458 570
459void rxvt_display::flush () 571void rxvt_display::flush ()
460{ 572{
461 if (XEventsQueued (display, QueuedAlready)) 573 if (XEventsQueued (dpy, QueuedAlready))
462 x_cb (x_ev, EVENT_READ); 574 x_cb (x_ev, EVENT_READ);
463 575
464 XFlush (display); 576 XFlush (dpy);
465} 577}
466 578
467void rxvt_display::reg (xevent_watcher *w) 579void rxvt_display::reg (xevent_watcher *w)
468{ 580{
469 xw.push_back (w); 581 xw.push_back (w);
… …
483 595
484 selection_owner = owner; 596 selection_owner = owner;
485} 597}
486 598
487#ifdef USE_XIM 599#ifdef USE_XIM
600
488void rxvt_display::reg (im_watcher *w) 601void rxvt_display::reg (im_watcher *w)
489{ 602{
490 imw.push_back (w); 603 imw.push_back (w);
491} 604}
492 605
… …
516 return xim; 629 return xim;
517} 630}
518 631
519void rxvt_display::put_xim (rxvt_xim *xim) 632void rxvt_display::put_xim (rxvt_xim *xim)
520{ 633{
521#if XLIB_IS_RACEFREE 634# if XLIB_IS_RACEFREE
522 xims.put (xim); 635 xims.put (xim);
523#endif 636# endif
524} 637}
638
525#endif 639#endif
526 640
527Atom rxvt_display::atom (const char *name) 641Atom rxvt_display::atom (const char *name)
528{ 642{
529 return XInternAtom (display, name, False); 643 return XInternAtom (dpy, name, False);
530} 644}
531 645
532///////////////////////////////////////////////////////////////////////////// 646/////////////////////////////////////////////////////////////////////////////
533 647
534template class refcache<rxvt_display>; 648template class refcache<rxvt_display>;
535refcache<rxvt_display> displays; 649refcache<rxvt_display> displays;
536 650
537///////////////////////////////////////////////////////////////////////////// 651/////////////////////////////////////////////////////////////////////////////
538 652//
653
654static unsigned int
655insert_component (unsigned int value, unsigned int mask, unsigned int shift)
656{
657 return (value * (mask + 1) >> 16) << shift;
658}
659
539bool 660bool
540rxvt_color::set (rxvt_screen *screen, Pixel p) 661rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
541{ 662{
542#if XFT 663#if XFT
543 XColor xc; 664 XRenderPictFormat *format;
544 665
545 xc.pixel = p; 666 // FUCKING Xft gets it wrong, of course, so work around it.
546 if (!XQueryColor (screen->xdisp, screen->cmap, &xc)) 667 // Transparency users should eat shit and die, and then
547 return false; 668 // XRenderQueryPictIndexValues themselves plenty.
669 if ((screen->visual->c_class == TrueColor)
670 && (format = XRenderFindVisualFormat (screen->dpy, screen->visual)))
671 {
672 // the fun lies in doing everything manually...
673 c.color.red = color.r;
674 c.color.green = color.g;
675 c.color.blue = color.b;
676 c.color.alpha = color.a;
548 677
678 c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red )
679 | insert_component (color.g, format->direct.greenMask, format->direct.green)
680 | insert_component (color.b, format->direct.blueMask , format->direct.blue )
681 | insert_component (color.a, format->direct.alphaMask, format->direct.alpha);
682
683 return true;
684 }
685 else
686 {
549 XRenderColor d; 687 XRenderColor d;
550 688
551 d.red = xc.red; 689 d.red = color.r;
552 d.green = xc.green; 690 d.green = color.g;
553 d.blue = xc.blue; 691 d.blue = color.b;
554 d.alpha = 0xffff; 692 d.alpha = color.a;
555 693
556 return 694 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
557 XftColorAllocValue (screen->xdisp, 695 }
558 screen->visual,
559 screen->cmap,
560 &d, &c);
561#else 696#else
562 this->p = p; 697 c.red = color.r;
563#endif 698 c.green = color.g;
699 c.blue = color.b;
564 700
701 if (screen->visual->c_class == TrueColor)
702 {
703 c.pixel = (color.r * (screen->visual->red_mask >> ctz (screen->visual->red_mask ))
704 / rgba::MAX_CC) << ctz (screen->visual->red_mask )
705 | (color.g * (screen->visual->green_mask >> ctz (screen->visual->green_mask))
706 / rgba::MAX_CC) << ctz (screen->visual->green_mask)
707 | (color.b * (screen->visual->blue_mask >> ctz (screen->visual->blue_mask ))
708 / rgba::MAX_CC) << ctz (screen->visual->blue_mask );
709
710 return true;
711 }
712 else if (XAllocColor (screen->dpy, screen->cmap, &c))
565 return true; 713 return true;
714 else
715 c.pixel = (color.r + color.g + color.b) > 128*3
716 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
717 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
718#endif
719
720 return false;
566} 721}
567 722
568bool 723bool
569rxvt_color::set (rxvt_screen *screen, const char *name) 724rxvt_color::set (rxvt_screen *screen, const char *name)
570{ 725{
726 rgba c;
727 char eos;
728 int skip;
729
730 // parse the nonstandard "[alphapercent]" prefix
731 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
732 {
733 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
734 name += skip;
735 }
736 else
737 c.a = rgba::MAX_CC;
738
739 // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format
740 if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos))
741 {
742 XColor xc, xc_exact;
743
744 if (XParseColor (screen->dpy, screen->cmap, name, &xc))
745 {
746 c.r = xc.red;
747 c.g = xc.green;
748 c.b = xc.blue;
749 }
750 else
751 {
752 c.r = 0xffff;
753 c.g = 0x6969;
754 c.b = 0xb4b4;
755
756 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
757 }
758 }
759
760 return set (screen, c);
761}
762
763bool
764rxvt_color::set (rxvt_screen *screen, const rgba &color)
765{
766 bool got = alloc (screen, color);
767
768#if !ENABLE_MINIMAL
769 int cmap_size = screen->visual->map_entries;
770
771 if (!got
772 && screen->visual->c_class == PseudoColor
773 && cmap_size < 4096)
774 {
775 XColor *colors = new XColor [screen->visual->map_entries];
776
777 for (int i = 0; i < cmap_size; i++)
778 colors [i].pixel = i;
779
780 // many kilobytes transfer per colour, but pseudocolor isn't worth
781 // many extra optimisations.
782 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
783
784 int diff = 0x7fffffffUL;
785 XColor *best = colors;
786
787 for (int i = 0; i < cmap_size; i++)
788 {
789 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
790 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
791 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
792
793 if (d < diff)
794 {
795 diff = d;
796 best = colors + i;
797 }
798 }
799
800 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
801 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
802
803 got = alloc (screen, rgba (best->red, best->green, best->blue));
804
805 delete colors;
806 }
807#endif
808
809 return got;
810}
811
812void
813rxvt_color::get (rgba &color)
814{
571#if XFT 815#if XFT
572 return XftColorAllocName (screen->xdisp, screen->visual, screen->cmap, name, &c); 816 color.r = c.color.red;
817 color.g = c.color.green;
818 color.b = c.color.blue;
819 color.a = c.color.alpha;
573#else 820#else
574 XColor xc; 821 color.r = c.red;
575 822 color.g = c.green;
576 if (XParseColor (screen->xdisp, screen->cmap, name, &xc)) 823 color.b = c.blue;
577 return set (screen, xc.red, xc.green, xc.blue); 824 color.a = rgba::MAX_CC;
578
579 return false;
580#endif 825#endif
581} 826}
582 827
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 828void
600rxvt_color::get (rxvt_screen *screen, unsigned short &cr, unsigned short &cg, unsigned short &cb) 829rxvt_color::get (XColor &color)
601{ 830{
602#if XFT 831 rgba c;
603 cr = c.color.red; 832 get (c);
604 cg = c.color.green;
605 cb = c.color.blue;
606#else
607 XColor c;
608 833
609 c.pixel = p; 834 color.red = c.r;
610 XQueryColor (screen->xdisp, screen->cmap, &c); 835 color.green = c.g;
611 836 color.blue = c.b;
612 cr = c.red; 837 color.pixel = (Pixel)*this;
613 cg = c.green;
614 cb = c.blue;
615#endif
616} 838}
617 839
618void 840void
619rxvt_color::free (rxvt_screen *screen) 841rxvt_color::free (rxvt_screen *screen)
620{ 842{
843 if (screen->visual->c_class == TrueColor)
844 return; // nothing to do
845
621#if XFT 846#if XFT
622 XftColorFree (screen->xdisp, screen->visual, screen->cmap, &c); 847 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
623#else 848#else
624 XFreeColors (screen->xdisp, screen->cmap, &p, 1, AllPlanes); 849 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
625#endif 850#endif
626} 851}
627 852
628rxvt_color 853void
629rxvt_color::fade (rxvt_screen *screen, int percent) 854rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
630{ 855{
631 percent = 100 - percent; 856 rgba c;
857 get (c);
632 858
633 unsigned short cr, cg, cb; 859 result.set (
634 rxvt_color faded;
635
636 get (screen, cr, cg, cb);
637
638 faded.set (
639 screen, 860 screen,
640 cr * percent / 100, 861 rgba (
641 cg * percent / 100, 862 lerp (c.r, to.r, percent),
642 cb * percent / 100 863 lerp (c.g, to.g, percent),
864 lerp (c.b, to.b, percent),
865 lerp (c.a, to.a, percent)
866 )
643 ); 867 );
644
645 return faded;
646} 868}
647 869
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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