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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.27 by root, Wed Jan 25 21:09:21 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>
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 xdisp = disp->display; 257 dpy = disp->dpy;
187 258
188 Screen *screen = ScreenOfDisplay (xdisp, disp->screen); 259 Screen *screen = ScreenOfDisplay (dpy, disp->screen);
189 260
190 depth = DefaultDepthOfScreen (screen); 261 depth = DefaultDepthOfScreen (screen);
191 visual = DefaultVisualOfScreen (screen); 262 visual = DefaultVisualOfScreen (screen);
192 cmap = DefaultColormapOfScreen (screen); 263 cmap = DefaultColormapOfScreen (screen);
193} 264}
194 265
195void 266void
196rxvt_screen::set (rxvt_display *disp, int depth) 267rxvt_screen::select_visual (int bitdepth)
197{ 268{
198 set (disp); 269#if XFT
199
200 XVisualInfo vinfo; 270 XVisualInfo vinfo;
201 271
202 if (XMatchVisualInfo (xdisp, display->screen, depth, TrueColor, &vinfo)) 272 if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo))
203 { 273 {
204 this->depth = depth; 274 depth = bitdepth;
205 this->visual = vinfo.visual; 275 visual = vinfo.visual;
206 this->cmap = XCreateColormap (xdisp, disp->root, visual, AllocNone); 276 cmap = XCreateColormap (dpy, display->root, visual, AllocNone);
207 } 277 }
278#endif
208} 279}
209 280
210void 281void
211rxvt_screen::clear () 282rxvt_screen::clear ()
212{ 283{
284#if XFT
285 if (scratch_area)
286 {
287 XFreePixmap (dpy, scratch_area->drawable);
288 delete scratch_area;
289 }
290#endif
291
213 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (xdisp, display->screen))) 292 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (dpy, display->screen)))
214 XFreeColormap (xdisp, cmap); 293 XFreeColormap (dpy, cmap);
215} 294}
216 295
217///////////////////////////////////////////////////////////////////////////// 296/////////////////////////////////////////////////////////////////////////////
218 297
219rxvt_display::rxvt_display (const char *id) 298rxvt_display::rxvt_display (const char *id)
… …
222, selection_owner (0) 301, selection_owner (0)
223{ 302{
224} 303}
225 304
226XrmDatabase 305XrmDatabase
227rxvt_display::get_resources () 306rxvt_display::get_resources (bool refresh)
228{ 307{
229 char *homedir = (char *)getenv ("HOME"); 308 char *homedir = (char *)getenv ("HOME");
230 char fname[1024]; 309 char fname[1024];
231 310
232 /* 311 /*
233 * get resources using the X library function 312 * get resources using the X library function
234 */ 313 */
235 char *displayResource, *xe; 314 char *displayResource, *xe;
236 XrmDatabase database, rdb1; 315 XrmDatabase rdb1, database = 0;
237
238 database = NULL;
239 316
240 // 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
241 319
242 // 6. System wide per application default file. 320 // 6. System wide per application default file.
243 321
244 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */ 322 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */
245 if ((xe = (char *)getenv ("XAPPLRESDIR"))) 323 if ((xe = (char *)getenv ("XAPPLRESDIR")))
… …
252 330
253 // 5. User's per application default file. 331 // 5. User's per application default file.
254 // none 332 // none
255 333
256 // 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
257 /* 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
258 displayResource = XResourceManagerString (display); 378 displayResource = XResourceManagerString (dpy);
259 379
260 if (displayResource != NULL) 380 if (displayResource)
261 { 381 {
262 if ((rdb1 = XrmGetStringDatabase (displayResource))) 382 if ((rdb1 = XrmGetStringDatabase (displayResource)))
263 XrmMergeDatabases (rdb1, &database); 383 XrmMergeDatabases (rdb1, &database);
264 } 384 }
265 else if (homedir)
266 {
267 snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir);
268 385
269 if ((rdb1 = XrmGetFileDatabase (fname))) 386#if !XLIB_ILLEGAL_ACCESS
270 XrmMergeDatabases (rdb1, &database); 387 if (refresh && displayResource)
271 } 388 XFree (displayResource);
389#endif
272 390
273 /* Get screen specific resources */ 391 /* Get screen specific resources */
274 displayResource = XScreenResourceString (ScreenOfDisplay (display, screen)); 392 displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen));
275 393
276 if (displayResource != NULL) 394 if (displayResource)
277 { 395 {
278 if ((rdb1 = XrmGetStringDatabase (displayResource))) 396 if ((rdb1 = XrmGetStringDatabase (displayResource)))
279 /* Merge with screen-independent resources */ 397 /* Merge with screen-independent resources */
280 XrmMergeDatabases (rdb1, &database); 398 XrmMergeDatabases (rdb1, &database);
281 399
… …
309 if (id[0] == ':') 427 if (id[0] == ':')
310 { 428 {
311 val = rxvt_malloc (5 + strlen (id) + 1); 429 val = rxvt_malloc (5 + strlen (id) + 1);
312 strcpy (val, "unix/"); 430 strcpy (val, "unix/");
313 strcat (val, id); 431 strcat (val, id);
314 display = XOpenDisplay (val); 432 dpy = XOpenDisplay (val);
315 free (val); 433 free (val);
316 } 434 }
317 else 435 else
318#endif 436#endif
319 display = 0; 437 dpy = 0;
320 438
321 if (!display) 439 if (!dpy)
322 display = XOpenDisplay (id); 440 dpy = XOpenDisplay (id);
323 441
324 if (!display) 442 if (!dpy)
325 return false; 443 return false;
326 444
327 screen = DefaultScreen (display); 445 screen = DefaultScreen (dpy);
328 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
329 453
330 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA); 454 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
331 XInternAtoms (display, (char **)xa_names, NUM_XA, False, xa); 455 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
332 456
333 XrmSetDatabase (display, get_resources ()); 457 XrmSetDatabase (dpy, get_resources (false));
334 458
335#ifdef POINTER_BLANK 459#ifdef POINTER_BLANK
336 XColor blackcolour; 460 XColor blackcolour;
337 blackcolour.red = 0; 461 blackcolour.red = 0;
338 blackcolour.green = 0; 462 blackcolour.green = 0;
339 blackcolour.blue = 0; 463 blackcolour.blue = 0;
340 Font f = XLoadFont (display, "fixed"); 464 Font f = XLoadFont (dpy, "fixed");
341 blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', 465 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
342 &blackcolour, &blackcolour); 466 &blackcolour, &blackcolour);
343 XUnloadFont (display, f); 467 XUnloadFont (dpy, f);
344#endif 468#endif
345 469
346 int fd = XConnectionNumber (display); 470 int fd = XConnectionNumber (dpy);
347 471
348#ifndef NO_SLOW_LINK_SUPPORT
349 // try to detect wether we have a local connection. 472 // try to detect wether we have a local connection.
350 // assume unix domains socket == local, everything else not 473 // assume unix domains socket == local, everything else not
351 // TODO: might want to check for inet/127.0.0.1 474 // TODO: might want to check for inet/127.0.0.1
352 is_local = 0; 475 is_local = 0;
353 sockaddr_un sa; 476 sockaddr_un sa;
354 socklen_t sl = sizeof (sa); 477 socklen_t sl = sizeof (sa);
355 478
356 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 479 if (!getsockname (fd, (sockaddr *)&sa, &sl))
357 is_local = sa.sun_family == AF_LOCAL; 480 is_local = sa.sun_family == AF_UNIX;
358#endif
359 481
360 x_ev.start (fd, EVENT_READ); 482 x_ev.start (fd, EVENT_READ);
361 fcntl (fd, F_SETFD, FD_CLOEXEC); 483 fcntl (fd, F_SETFD, FD_CLOEXEC);
362 484
363 XSelectInput (display, root, PropertyChangeMask); 485 XSelectInput (dpy, root, PropertyChangeMask);
364 486
365 flush (); 487 flush ();
366 488
367 return true; 489 return true;
368} 490}
369 491
370void 492void
371rxvt_display::ref_next () 493rxvt_display::ref_next ()
372{ 494{
373 // TODO: somehow check wether the database files/resources changed 495 // TODO: somehow check wether the database files/resources changed
374 // before re-loading/parsing 496 // before affording re-loading/parsing
375 XrmDestroyDatabase (XrmGetDatabase (display)); 497 XrmDestroyDatabase (XrmGetDatabase (dpy));
376 XrmSetDatabase (display, get_resources ()); 498 XrmSetDatabase (dpy, get_resources (true));
377} 499}
378 500
379rxvt_display::~rxvt_display () 501rxvt_display::~rxvt_display ()
380{ 502{
381 if (!display) 503 if (!dpy)
382 return; 504 return;
383 505
384#ifdef POINTER_BLANK 506#ifdef POINTER_BLANK
385 XFreeCursor (display, blank_cursor); 507 XFreeCursor (dpy, blank_cursor);
386#endif 508#endif
387 x_ev.stop (); 509 x_ev.stop ();
388#ifdef USE_XIM 510#ifdef USE_XIM
389 xims.clear (); 511 xims.clear ();
390#endif 512#endif
391 XCloseDisplay (display); 513 XCloseDisplay (dpy);
392} 514}
393 515
394#ifdef USE_XIM 516#ifdef USE_XIM
395void rxvt_display::im_change_cb () 517void rxvt_display::im_change_cb ()
396{ 518{
… …
404 // registers, as xlib crashes due to a race otherwise. 526 // registers, as xlib crashes due to a race otherwise.
405 Atom actual_type, *atoms; 527 Atom actual_type, *atoms;
406 int actual_format; 528 int actual_format;
407 unsigned long nitems, bytes_after; 529 unsigned long nitems, bytes_after;
408 530
409 if (XGetWindowProperty (display, root, xa[XA_XIM_SERVERS], 0L, 1000000L, 531 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
410 False, XA_ATOM, &actual_type, &actual_format, 532 False, XA_ATOM, &actual_type, &actual_format,
411 &nitems, &bytes_after, (unsigned char **)&atoms) 533 &nitems, &bytes_after, (unsigned char **)&atoms)
412 != Success ) 534 != Success )
413 return; 535 return;
414 536
415 if (actual_type == XA_ATOM && actual_format == 32) 537 if (actual_type == XA_ATOM && actual_format == 32)
416 for (int i = 0; i < nitems; i++) 538 for (int i = 0; i < nitems; i++)
417 if (XGetSelectionOwner (display, atoms[i])) 539 if (XGetSelectionOwner (dpy, atoms[i]))
418 { 540 {
419 im_change_cb (); 541 im_change_cb ();
420 break; 542 break;
421 } 543 }
422 544
… …
427void rxvt_display::x_cb (io_watcher &w, short revents) 549void rxvt_display::x_cb (io_watcher &w, short revents)
428{ 550{
429 do 551 do
430 { 552 {
431 XEvent xev; 553 XEvent xev;
432 XNextEvent (display, &xev); 554 XNextEvent (dpy, &xev);
433 555
434#ifdef USE_XIM 556#ifdef USE_XIM
435 if (!XFilterEvent (&xev, None)) 557 if (!XFilterEvent (&xev, None))
436 { 558 {
437 if (xev.type == PropertyNotify 559 if (xev.type == PropertyNotify
… …
448 } 570 }
449#ifdef USE_XIM 571#ifdef USE_XIM
450 } 572 }
451#endif 573#endif
452 } 574 }
453 while (XEventsQueued (display, QueuedAlready)); 575 while (XEventsQueued (dpy, QueuedAlready));
454 576
455 XFlush (display); 577 XFlush (dpy);
456} 578}
457 579
458void rxvt_display::flush () 580void rxvt_display::flush ()
459{ 581{
460 if (XEventsQueued (display, QueuedAlready)) 582 if (XEventsQueued (dpy, QueuedAlready))
461 x_cb (x_ev, EVENT_READ); 583 x_cb (x_ev, EVENT_READ);
462 584
463 XFlush (display); 585 XFlush (dpy);
464} 586}
465 587
466void rxvt_display::reg (xevent_watcher *w) 588void rxvt_display::reg (xevent_watcher *w)
467{ 589{
590 if (!w->active)
591 {
468 xw.push_back (w); 592 xw.push_back (w);
469 w->active = xw.size (); 593 w->active = xw.size ();
594 }
470} 595}
471 596
472void rxvt_display::unreg (xevent_watcher *w) 597void rxvt_display::unreg (xevent_watcher *w)
473{ 598{
474 if (w->active) 599 if (w->active)
600 {
475 xw[w->active - 1] = 0; 601 xw[w->active - 1] = 0;
602 w->active = 0;
603 }
476} 604}
477 605
478void rxvt_display::set_selection_owner (rxvt_term *owner) 606void rxvt_display::set_selection_owner (rxvt_term *owner)
479{ 607{
480 if (selection_owner && selection_owner != owner) 608 if (selection_owner && selection_owner != owner)
… …
482 610
483 selection_owner = owner; 611 selection_owner = owner;
484} 612}
485 613
486#ifdef USE_XIM 614#ifdef USE_XIM
615
487void rxvt_display::reg (im_watcher *w) 616void rxvt_display::reg (im_watcher *w)
488{ 617{
489 imw.push_back (w); 618 imw.push_back (w);
490} 619}
491 620
… …
515 return xim; 644 return xim;
516} 645}
517 646
518void rxvt_display::put_xim (rxvt_xim *xim) 647void rxvt_display::put_xim (rxvt_xim *xim)
519{ 648{
520#if XLIB_IS_RACEFREE 649# if XLIB_IS_RACEFREE
521 xims.put (xim); 650 xims.put (xim);
522#endif 651# endif
523} 652}
653
524#endif 654#endif
525 655
526Atom rxvt_display::atom (const char *name) 656Atom rxvt_display::atom (const char *name)
527{ 657{
528 return XInternAtom (display, name, False); 658 return XInternAtom (dpy, name, False);
529} 659}
530 660
531///////////////////////////////////////////////////////////////////////////// 661/////////////////////////////////////////////////////////////////////////////
532 662
533template class refcache<rxvt_display>; 663template class refcache<rxvt_display>;
534refcache<rxvt_display> displays; 664refcache<rxvt_display> displays;
535 665
536///////////////////////////////////////////////////////////////////////////// 666/////////////////////////////////////////////////////////////////////////////
537 667//
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
538bool 675bool
539rxvt_color::set (rxvt_screen *screen, Pixel p) 676rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
540{ 677{
541#if XFT 678#if XFT
542 XColor xc; 679 XRenderPictFormat *format;
543 680
544 xc.pixel = p; 681 // FUCKING Xft gets it wrong, of course, so work around it.
545 if (!XQueryColor (screen->xdisp, screen->cmap, &xc)) 682 // Transparency users should eat shit and die, and then
546 return false; 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;
547 692
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 {
548 XRenderColor d; 702 XRenderColor d;
549 703
550 d.red = xc.red; 704 d.red = color.r;
551 d.green = xc.green; 705 d.green = color.g;
552 d.blue = xc.blue; 706 d.blue = color.b;
553 d.alpha = 0xffff; 707 d.alpha = color.a;
554 708
555 return 709 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
556 XftColorAllocValue (screen->xdisp, 710 }
557 screen->visual,
558 screen->cmap,
559 &d, &c);
560#else 711#else
561 this->p = p; 712 c.red = color.r;
562#endif 713 c.green = color.g;
714 c.blue = color.b;
563 715
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))
564 return true; 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;
565} 733}
566 734
567bool 735bool
568rxvt_color::set (rxvt_screen *screen, const char *name) 736rxvt_color::set (rxvt_screen *screen, const char *name)
569{ 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{
570#if XFT 827#if XFT
571 return XftColorAllocName (screen->xdisp, screen->visual, screen->cmap, name, &c); 828 color.r = c.color.red;
829 color.g = c.color.green;
830 color.b = c.color.blue;
831 color.a = c.color.alpha;
572#else 832#else
573 XColor xc; 833 color.r = c.red;
574 834 color.g = c.green;
575 if (XParseColor (screen->xdisp, screen->cmap, name, &xc)) 835 color.b = c.blue;
576 return set (screen, xc.red, xc.green, xc.blue); 836 color.a = rgba::MAX_CC;
577
578 return false;
579#endif 837#endif
580} 838}
581 839
582bool
583rxvt_color::set (rxvt_screen *screen, unsigned short cr, unsigned short cg, unsigned short cb)
584{
585 XColor xc;
586
587 xc.red = cr;
588 xc.green = cg;
589 xc.blue = cb;
590 xc.flags = DoRed | DoGreen | DoBlue;
591
592 if (XAllocColor (screen->xdisp, screen->cmap, &xc))
593 return set (screen, xc.pixel);
594
595 return false;
596}
597
598void 840void
599rxvt_color::get (rxvt_screen *screen, unsigned short &cr, unsigned short &cg, unsigned short &cb) 841rxvt_color::get (XColor &color)
600{ 842{
601#if XFT 843 rgba c;
602 cr = c.color.red; 844 get (c);
603 cg = c.color.green;
604 cb = c.color.blue;
605#else
606 XColor c;
607 845
608 c.pixel = p; 846 color.red = c.r;
609 XQueryColor (screen->xdisp, screen->cmap, &c); 847 color.green = c.g;
610 848 color.blue = c.b;
611 cr = c.red; 849 color.pixel = (Pixel)*this;
612 cg = c.green;
613 cb = c.blue;
614#endif
615} 850}
616 851
617void 852void
618rxvt_color::free (rxvt_screen *screen) 853rxvt_color::free (rxvt_screen *screen)
619{ 854{
855 if (screen->visual->c_class == TrueColor)
856 return; // nothing to do
857
620#if XFT 858#if XFT
621 XftColorFree (screen->xdisp, screen->visual, screen->cmap, &c); 859 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
622#else 860#else
623 XFreeColors (screen->xdisp, screen->cmap, &p, 1, AllPlanes); 861 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
624#endif 862#endif
625} 863}
626 864
627rxvt_color 865void
628rxvt_color::fade (rxvt_screen *screen, int percent) 866rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
629{ 867{
630 percent = 100 - percent; 868 rgba c;
869 get (c);
631 870
632 unsigned short cr, cg, cb; 871 result.set (
633 rxvt_color faded;
634
635 get (screen, cr, cg, cb);
636
637 faded.set (
638 screen, 872 screen,
639 cr * percent / 100, 873 rgba (
640 cg * percent / 100, 874 lerp (c.r, to.r, percent),
641 cb * percent / 100 875 lerp (c.g, to.g, percent),
876 lerp (c.b, to.b, percent),
877 lerp (c.a, to.a, percent)
878 )
642 ); 879 );
643
644 return faded;
645} 880}
646 881
647#define LERP(a,b,p) (a * p + b * (100 - p)) / 100
648
649rxvt_color
650rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &fadeto)
651{
652 percent = 100 - percent;
653
654 unsigned short cr, cg, cb;
655 unsigned short fcr, fcg, fcb;
656 rxvt_color faded;
657
658 get (screen, cr, cg, cb);
659 fadeto.get (screen, fcr, fcg, fcb);
660
661 faded.set (
662 screen,
663 LERP (cr, fcr, percent),
664 LERP (cg, fcg, percent),
665 LERP (cb, fcb, percent)
666 );
667
668 return faded;
669}
670

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