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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.24 by root, Wed Jan 25 00:42:21 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>
36#endif
37
38const char *const xa_names[] =
39{
40 "TEXT",
41 "COMPOUND_TEXT",
42 "UTF8_STRING",
43 "MULTIPLE",
44 "TARGETS",
45 "TIMESTAMP",
46 "VT_SELECTION",
47 "INCR",
48 "WM_PROTOCOLS",
49 "WM_DELETE_WINDOW",
50 "CLIPBOARD",
51 "AVERAGE_WIDTH",
52 "WEIGHT_NAME",
53 "SLANT",
54 "CHARSET_REGISTRY",
55 "CHARSET_ENCODING",
56#if ENABLE_FRILLS
57 "_MOTIF_WM_HINTS",
58#endif
59#if ENABLE_EWMH
60 "_NET_WM_PID",
61 "_NET_WM_NAME",
62 "_NET_WM_ICON_NAME",
63 "_NET_WM_PING",
64#endif
65#if USE_XIM
66 "WM_LOCALE_NAME",
67 "XIM_SERVERS",
68#endif
69#ifdef TRANSPARENT
70 "_XROOTPMAP_ID",
71 "ESETROOT_PMAP_ID",
72#endif
73#if ENABLE_XEMBED
74 "_XEMBED",
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",
35#endif 90# endif
91#endif
92};
93
94/////////////////////////////////////////////////////////////////////////////
36 95
37refcounted::refcounted (const char *id) 96refcounted::refcounted (const char *id)
38{ 97{
39 this->id = strdup (id); 98 this->id = strdup (id);
40} 99}
… …
115bool 174bool
116rxvt_xim::ref_init () 175rxvt_xim::ref_init ()
117{ 176{
118 display = GET_R->display; //HACK: TODO 177 display = GET_R->display; //HACK: TODO
119 178
120 xim = XOpenIM (display->display, NULL, NULL, NULL); 179 xim = XOpenIM (display->dpy, 0, 0, 0);
121 180
122 if (!xim) 181 if (!xim)
123 return false; 182 return false;
124 183
125 XIMCallback ximcallback; 184 XIMCallback ximcallback;
126 ximcallback.client_data = (XPointer)this; 185 ximcallback.client_data = (XPointer)this;
127 ximcallback.callback = im_destroy_cb; 186 ximcallback.callback = im_destroy_cb;
128 187
129 XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL); 188 XSetIMValues (xim, XNDestroyCallback, &ximcallback, 0);
130 189
131 return true; 190 return true;
132} 191}
133 192
134rxvt_xim::~rxvt_xim () 193rxvt_xim::~rxvt_xim ()
… …
136 if (xim) 195 if (xim)
137 XCloseIM (xim); 196 XCloseIM (xim);
138} 197}
139 198
140#endif 199#endif
200
201/////////////////////////////////////////////////////////////////////////////
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
253void
254rxvt_screen::set (rxvt_display *disp)
255{
256 display = disp;
257 dpy = disp->dpy;
258
259 Screen *screen = ScreenOfDisplay (dpy, disp->screen);
260
261 depth = DefaultDepthOfScreen (screen);
262 visual = DefaultVisualOfScreen (screen);
263 cmap = DefaultColormapOfScreen (screen);
264}
265
266void
267rxvt_screen::select_visual (int bitdepth)
268{
269#if XFT
270 XVisualInfo vinfo;
271
272 if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo))
273 {
274 depth = bitdepth;
275 visual = vinfo.visual;
276 cmap = XCreateColormap (dpy, display->root, visual, AllocNone);
277 }
278#endif
279}
280
281void
282rxvt_screen::clear ()
283{
284#if XFT
285 if (scratch_area)
286 {
287 XFreePixmap (dpy, scratch_area->drawable);
288 delete scratch_area;
289 }
290#endif
291
292 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (dpy, display->screen)))
293 XFreeColormap (dpy, cmap);
294}
141 295
142///////////////////////////////////////////////////////////////////////////// 296/////////////////////////////////////////////////////////////////////////////
143 297
144rxvt_display::rxvt_display (const char *id) 298rxvt_display::rxvt_display (const char *id)
145: refcounted (id) 299: refcounted (id)
… …
147, selection_owner (0) 301, selection_owner (0)
148{ 302{
149} 303}
150 304
151XrmDatabase 305XrmDatabase
152rxvt_display::get_resources () 306rxvt_display::get_resources (bool refresh)
153{ 307{
154 char *homedir = (char *)getenv ("HOME"); 308 char *homedir = (char *)getenv ("HOME");
155 char fname[1024]; 309 char fname[1024];
156 310
157 /* 311 /*
158 * get resources using the X library function 312 * get resources using the X library function
159 */ 313 */
160 char *displayResource, *xe; 314 char *displayResource, *xe;
161 XrmDatabase database, rdb1; 315 XrmDatabase rdb1, database = 0;
162
163 database = NULL;
164 316
165 // 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
166 319
167 // 6. System wide per application default file. 320 // 6. System wide per application default file.
168 321
169 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */ 322 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */
170 if ((xe = (char *)getenv ("XAPPLRESDIR"))) 323 if ((xe = (char *)getenv ("XAPPLRESDIR")))
… …
177 330
178 // 5. User's per application default file. 331 // 5. User's per application default file.
179 // none 332 // none
180 333
181 // 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
182 /* 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
183 displayResource = XResourceManagerString (display); 378 displayResource = XResourceManagerString (dpy);
184 379
185 if (displayResource != NULL) 380 if (displayResource)
186 { 381 {
187 if ((rdb1 = XrmGetStringDatabase (displayResource))) 382 if ((rdb1 = XrmGetStringDatabase (displayResource)))
188 XrmMergeDatabases (rdb1, &database); 383 XrmMergeDatabases (rdb1, &database);
189 } 384 }
190 else if (homedir)
191 {
192 snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir);
193 385
194 if ((rdb1 = XrmGetFileDatabase (fname))) 386#if !XLIB_ILLEGAL_ACCESS
195 XrmMergeDatabases (rdb1, &database); 387 if (refresh && displayResource)
196 } 388 XFree (displayResource);
389#endif
197 390
198 /* Get screen specific resources */ 391 /* Get screen specific resources */
199 displayResource = XScreenResourceString (ScreenOfDisplay (display, screen)); 392 displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen));
200 393
201 if (displayResource != NULL) 394 if (displayResource)
202 { 395 {
203 if ((rdb1 = XrmGetStringDatabase (displayResource))) 396 if ((rdb1 = XrmGetStringDatabase (displayResource)))
204 /* Merge with screen-independent resources */ 397 /* Merge with screen-independent resources */
205 XrmMergeDatabases (rdb1, &database); 398 XrmMergeDatabases (rdb1, &database);
206 399
… …
234 if (id[0] == ':') 427 if (id[0] == ':')
235 { 428 {
236 val = rxvt_malloc (5 + strlen (id) + 1); 429 val = rxvt_malloc (5 + strlen (id) + 1);
237 strcpy (val, "unix/"); 430 strcpy (val, "unix/");
238 strcat (val, id); 431 strcat (val, id);
239 display = XOpenDisplay (val); 432 dpy = XOpenDisplay (val);
240 free (val); 433 free (val);
241 } 434 }
242 else 435 else
243#endif 436#endif
244 display = 0; 437 dpy = 0;
245 438
246 if (!display) 439 if (!dpy)
247 display = XOpenDisplay (id); 440 dpy = XOpenDisplay (id);
248 441
249 if (!display) 442 if (!dpy)
250 return false; 443 return false;
251 444
252 screen = DefaultScreen (display); 445 screen = DefaultScreen (dpy);
253 root = DefaultRootWindow (display); 446 root = DefaultRootWindow (dpy);
254 visual = DefaultVisual (display, screen);
255 cmap = DefaultColormap (display, screen);
256 depth = DefaultDepth (display, screen);
257 447
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
453
454 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
455 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
456
258 XrmSetDatabase (display, get_resources ()); 457 XrmSetDatabase (dpy, get_resources (false));
259 458
260#ifdef POINTER_BLANK 459#ifdef POINTER_BLANK
261 XColor blackcolour; 460 XColor blackcolour;
262 blackcolour.red = 0; 461 blackcolour.red = 0;
263 blackcolour.green = 0; 462 blackcolour.green = 0;
264 blackcolour.blue = 0; 463 blackcolour.blue = 0;
265 Font f = XLoadFont (display, "fixed"); 464 Font f = XLoadFont (dpy, "fixed");
266 blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', 465 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
267 &blackcolour, &blackcolour); 466 &blackcolour, &blackcolour);
268 XUnloadFont (display, f); 467 XUnloadFont (dpy, f);
269#endif 468#endif
270 469
271#ifdef PREFER_24BIT
272 /*
273 * If depth is not 24, look for a 24bit visual.
274 */
275 if (depth != 24)
276 {
277 XVisualInfo vinfo;
278
279 if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo))
280 {
281 depth = 24;
282 visual = vinfo.visual;
283 cmap = XCreateColormap (display,
284 RootWindow (display, screen),
285 visual, AllocNone);
286 }
287 }
288#endif
289
290 int fd = XConnectionNumber (display); 470 int fd = XConnectionNumber (dpy);
291 471
292#ifndef NO_SLOW_LINK_SUPPORT
293 // try to detect wether we have a local connection. 472 // try to detect wether we have a local connection.
294 // assume unix domains socket == local, everything else not 473 // assume unix domains socket == local, everything else not
295 // TODO: might want to check for inet/127.0.0.1 474 // TODO: might want to check for inet/127.0.0.1
296 is_local = 0; 475 is_local = 0;
297 sockaddr_un sa; 476 sockaddr_un sa;
298 socklen_t sl = sizeof (sa); 477 socklen_t sl = sizeof (sa);
299 478
300 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 479 if (!getsockname (fd, (sockaddr *)&sa, &sl))
301 is_local = sa.sun_family == AF_LOCAL; 480 is_local = sa.sun_family == AF_UNIX;
302#endif
303 481
304 x_ev.start (fd, EVENT_READ); 482 x_ev.start (fd, EVENT_READ);
305 fcntl (fd, F_SETFD, FD_CLOEXEC); 483 fcntl (fd, F_SETFD, FD_CLOEXEC);
306 484
307 XSelectInput (display, root, PropertyChangeMask); 485 XSelectInput (dpy, root, PropertyChangeMask);
308#ifdef USE_XIM
309 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0);
310#endif
311 486
312 flush (); 487 flush ();
313 488
314 return true; 489 return true;
315} 490}
316 491
317void 492void
318rxvt_display::ref_next () 493rxvt_display::ref_next ()
319{ 494{
320 // TODO: somehow check wether the database files/resources changed 495 // TODO: somehow check wether the database files/resources changed
321 // before re-loading/parsing 496 // before affording re-loading/parsing
322 XrmDestroyDatabase (XrmGetDatabase (display)); 497 XrmDestroyDatabase (XrmGetDatabase (dpy));
323 XrmSetDatabase (display, get_resources ()); 498 XrmSetDatabase (dpy, get_resources (true));
324} 499}
325 500
326rxvt_display::~rxvt_display () 501rxvt_display::~rxvt_display ()
327{ 502{
328 if (!display) 503 if (!dpy)
329 return; 504 return;
330 505
331#ifdef POINTER_BLANK 506#ifdef POINTER_BLANK
332 XFreeCursor (display, blank_cursor); 507 XFreeCursor (dpy, blank_cursor);
333#endif 508#endif
334 x_ev.stop (); 509 x_ev.stop ();
335#ifdef USE_XIM 510#ifdef USE_XIM
336 xims.clear (); 511 xims.clear ();
337#endif 512#endif
338 XCloseDisplay (display); 513 XCloseDisplay (dpy);
339} 514}
340 515
341#ifdef USE_XIM 516#ifdef USE_XIM
342void rxvt_display::im_change_cb () 517void rxvt_display::im_change_cb ()
343{ 518{
… …
351 // registers, as xlib crashes due to a race otherwise. 526 // registers, as xlib crashes due to a race otherwise.
352 Atom actual_type, *atoms; 527 Atom actual_type, *atoms;
353 int actual_format; 528 int actual_format;
354 unsigned long nitems, bytes_after; 529 unsigned long nitems, bytes_after;
355 530
356 if (XGetWindowProperty (display, root, xa_xim_servers, 0L, 1000000L, 531 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
357 False, XA_ATOM, &actual_type, &actual_format, 532 False, XA_ATOM, &actual_type, &actual_format,
358 &nitems, &bytes_after, (unsigned char **)&atoms) 533 &nitems, &bytes_after, (unsigned char **)&atoms)
359 != Success ) 534 != Success )
360 return; 535 return;
361 536
362 if (actual_type == XA_ATOM && actual_format == 32) 537 if (actual_type == XA_ATOM && actual_format == 32)
363 for (int i = 0; i < nitems; i++) 538 for (int i = 0; i < nitems; i++)
364 if (XGetSelectionOwner (display, atoms[i])) 539 if (XGetSelectionOwner (dpy, atoms[i]))
365 { 540 {
366 im_change_cb (); 541 im_change_cb ();
367 break; 542 break;
368 } 543 }
369 544
… …
374void rxvt_display::x_cb (io_watcher &w, short revents) 549void rxvt_display::x_cb (io_watcher &w, short revents)
375{ 550{
376 do 551 do
377 { 552 {
378 XEvent xev; 553 XEvent xev;
379 XNextEvent (display, &xev); 554 XNextEvent (dpy, &xev);
380 555
381#ifdef USE_XIM 556#ifdef USE_XIM
382 if (!XFilterEvent (&xev, None)) 557 if (!XFilterEvent (&xev, None))
383 { 558 {
384 if (xev.type == PropertyNotify 559 if (xev.type == PropertyNotify
385 && xev.xany.window == root 560 && xev.xany.window == root
386 && xev.xproperty.atom == xa_xim_servers) 561 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
387 im_change_check (); 562 im_change_check ();
388#endif 563#endif
389 for (int i = xw.size (); i--; ) 564 for (int i = xw.size (); i--; )
390 { 565 {
391 if (!xw[i]) 566 if (!xw[i])
… …
395 } 570 }
396#ifdef USE_XIM 571#ifdef USE_XIM
397 } 572 }
398#endif 573#endif
399 } 574 }
400 while (XEventsQueued (display, QueuedAlready)); 575 while (XEventsQueued (dpy, QueuedAlready));
401 576
402 XFlush (display); 577 XFlush (dpy);
403} 578}
404 579
405void rxvt_display::flush () 580void rxvt_display::flush ()
406{ 581{
407 if (XEventsQueued (display, QueuedAlready)) 582 if (XEventsQueued (dpy, QueuedAlready))
408 x_cb (x_ev, EVENT_READ); 583 x_cb (x_ev, EVENT_READ);
409 584
410 XFlush (display); 585 XFlush (dpy);
411} 586}
412 587
413void rxvt_display::reg (xevent_watcher *w) 588void rxvt_display::reg (xevent_watcher *w)
414{ 589{
590 if (!w->active)
591 {
415 xw.push_back (w); 592 xw.push_back (w);
416 w->active = xw.size (); 593 w->active = xw.size ();
594 }
417} 595}
418 596
419void rxvt_display::unreg (xevent_watcher *w) 597void rxvt_display::unreg (xevent_watcher *w)
420{ 598{
421 if (w->active) 599 if (w->active)
600 {
422 xw[w->active - 1] = 0; 601 xw[w->active - 1] = 0;
602 w->active = 0;
603 }
423} 604}
424 605
425void rxvt_display::set_selection_owner (rxvt_term *owner) 606void rxvt_display::set_selection_owner (rxvt_term *owner)
426{ 607{
427 if (selection_owner && selection_owner != owner) 608 if (selection_owner && selection_owner != owner)
… …
429 610
430 selection_owner = owner; 611 selection_owner = owner;
431} 612}
432 613
433#ifdef USE_XIM 614#ifdef USE_XIM
615
434void rxvt_display::reg (im_watcher *w) 616void rxvt_display::reg (im_watcher *w)
435{ 617{
436 imw.push_back (w); 618 imw.push_back (w);
437} 619}
438 620
… …
462 return xim; 644 return xim;
463} 645}
464 646
465void rxvt_display::put_xim (rxvt_xim *xim) 647void rxvt_display::put_xim (rxvt_xim *xim)
466{ 648{
467#if XLIB_IS_RACEFREE 649# if XLIB_IS_RACEFREE
468 xims.put (xim); 650 xims.put (xim);
469#endif 651# endif
470} 652}
653
471#endif 654#endif
472 655
473Atom rxvt_display::atom (const char *name) 656Atom rxvt_display::atom (const char *name)
474{ 657{
475 return XInternAtom (display, name, False); 658 return XInternAtom (dpy, name, False);
476} 659}
477 660
478///////////////////////////////////////////////////////////////////////////// 661/////////////////////////////////////////////////////////////////////////////
479 662
480template class refcache<rxvt_display>; 663template class refcache<rxvt_display>;
481refcache<rxvt_display> displays; 664refcache<rxvt_display> displays;
482 665
483///////////////////////////////////////////////////////////////////////////// 666/////////////////////////////////////////////////////////////////////////////
484 667//
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
485bool 675bool
486rxvt_color::set (rxvt_display *display, Pixel p) 676rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
487{ 677{
488#if XFT 678#if XFT
489 XColor xc; 679 XRenderPictFormat *format;
490 680
491 xc.pixel = p; 681 // FUCKING Xft gets it wrong, of course, so work around it.
492 if (!XQueryColor (display->display, display->cmap, &xc)) 682 // Transparency users should eat shit and die, and then
493 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;
494 692
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 {
495 XRenderColor d; 702 XRenderColor d;
496 703
497 d.red = xc.red; 704 d.red = color.r;
498 d.green = xc.green; 705 d.green = color.g;
499 d.blue = xc.blue; 706 d.blue = color.b;
500 d.alpha = 0xffff; 707 d.alpha = color.a;
501 708
502 return 709 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
503 XftColorAllocValue (display->display, 710 }
504 display->visual,
505 display->cmap,
506 &d, &c);
507#else 711#else
508 this->p = p; 712 c.red = color.r;
509#endif 713 c.green = color.g;
714 c.blue = color.b;
510 715
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))
511 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;
512} 733}
513 734
514bool 735bool
515rxvt_color::set (rxvt_display *display, const char *name) 736rxvt_color::set (rxvt_screen *screen, const char *name)
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)
516{ 826{
517#if XFT 827#if XFT
518 return XftColorAllocName (display->display, display->visual, display->cmap, 828 color.r = c.color.red;
519 name, &c); 829 color.g = c.color.green;
830 color.b = c.color.blue;
831 color.a = c.color.alpha;
520#else 832#else
521 XColor xc; 833 color.r = c.red;
522 834 color.g = c.green;
523 if (XParseColor (display->display, display->cmap, name, &xc)) 835 color.b = c.blue;
524 return set (display, xc.red, xc.green, xc.blue); 836 color.a = rgba::MAX_CC;
525
526 return false;
527#endif 837#endif
528} 838}
529 839
530bool 840void
531rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) 841rxvt_color::get (XColor &color)
532{ 842{
533 XColor xc; 843 rgba c;
844 get (c);
534 845
535 xc.red = cr; 846 color.red = c.r;
536 xc.green = cg; 847 color.green = c.g;
537 xc.blue = cb; 848 color.blue = c.b;
538 xc.flags = DoRed | DoGreen | DoBlue; 849 color.pixel = (Pixel)*this;
539
540 if (XAllocColor (display->display, display->cmap, &xc))
541 return set (display, xc.pixel);
542
543 return false;
544} 850}
545 851
546void 852void
547rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) 853rxvt_color::free (rxvt_screen *screen)
548{ 854{
855 if (screen->visual->c_class == TrueColor)
856 return; // nothing to do
857
549#if XFT 858#if XFT
550 cr = c.color.red; 859 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
551 cg = c.color.green;
552 cb = c.color.blue;
553#else 860#else
554 XColor c; 861 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
555
556 c.pixel = p;
557 XQueryColor (display->display, display->cmap, &c);
558
559 cr = c.red;
560 cg = c.green;
561 cb = c.blue;
562#endif 862#endif
563} 863}
564 864
565void 865void
566rxvt_color::free (rxvt_display *display) 866rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
567{ 867{
568#if XFT 868 rgba c;
569 XftColorFree (display->display, display->visual, display->cmap, &c); 869 get (c);
570#else
571 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
572#endif
573}
574 870
575rxvt_color 871 result.set (
576rxvt_color::fade (rxvt_display *display, int percent) 872 screen,
577{ 873 rgba (
578 percent = 100 - percent; 874 lerp (c.r, to.r, percent),
579 875 lerp (c.g, to.g, percent),
580 unsigned short cr, cg, cb; 876 lerp (c.b, to.b, percent),
581 rxvt_color faded; 877 lerp (c.a, to.a, percent)
582 878 )
583 get (display, cr, cg, cb);
584
585 faded.set (
586 display,
587 cr * percent / 100,
588 cg * percent / 100,
589 cb * percent / 100
590 ); 879 );
591
592 return faded;
593} 880}
594 881
595#define LERP(a,b,p) (a * p + b * (100 - p)) / 100
596
597rxvt_color
598rxvt_color::fade (rxvt_display *display, int percent, rxvt_color &fadeto)
599{
600 percent = 100 - percent;
601
602 unsigned short cr, cg, cb;
603 unsigned short fcr, fcg, fcb;
604 rxvt_color faded;
605
606 get (display, cr, cg, cb);
607 fadeto.get(display, fcr, fcg, fcb);
608
609 faded.set (
610 display,
611 LERP (cr, fcr, percent),
612 LERP (cg, fcg, percent),
613 LERP (cb, fcb, percent)
614 );
615
616 return faded;
617}
618

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