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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.8 by root, Wed Dec 15 05:30:40 2004 UTC vs.
Revision 1.51 by root, Sat Feb 18 14:14:43 2006 UTC

… …
25#include <rxvttoolkit.h> 25#include <rxvttoolkit.h>
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>
31
30#ifndef NO_SLOW_LINK_SUPPORT 32#ifndef NO_SLOW_LINK_SUPPORT
31# include <sys/socket.h> 33# include <sys/socket.h>
32# include <sys/un.h> 34# include <sys/un.h>
33#endif 35#endif
34 36
37#if XFT
38# include <X11/extensions/Xrender.h>
39#endif
40
41const char *const xa_names[] =
42{
43 "TEXT",
44 "COMPOUND_TEXT",
45 "UTF8_STRING",
46 "MULTIPLE",
47 "TARGETS",
48 "TIMESTAMP",
49 "VT_SELECTION",
50 "INCR",
51 "WM_PROTOCOLS",
52 "WM_DELETE_WINDOW",
53 "CLIPBOARD",
54 "AVERAGE_WIDTH",
55 "WEIGHT_NAME",
56 "SLANT",
57 "CHARSET_REGISTRY",
58 "CHARSET_ENCODING",
59#if ENABLE_FRILLS
60 "_MOTIF_WM_HINTS",
61#endif
62#if ENABLE_EWMH
63 "_NET_WM_PID",
64 "_NET_WM_NAME",
65 "_NET_WM_ICON_NAME",
66 "_NET_WM_PING",
67#endif
68#if USE_XIM
69 "WM_LOCALE_NAME",
70 "XIM_SERVERS",
71#endif
72#ifdef TRANSPARENT
73 "_XROOTPMAP_ID",
74 "ESETROOT_PMAP_ID",
75#endif
76#if ENABLE_XEMBED
77 "_XEMBED",
78 "_XEMBED_INFO",
79#endif
80#if !ENABLE_MINIMAL
81 "SCREEN_RESOURCES",
82 "XDCCC_LINEAR_RGB_CORRECTION",
83 "XDCCC_LINEAR_RGB_MATRICES",
84 "WM_COLORMAP_WINDOWS",
85 "WM_STATE",
86 "cursor",
87# if USE_XIM
88 "TRANSPORT",
89 "LOCALES",
90 "_XIM_PROTOCOL",
91 "_XIM_XCONNECT",
92 "_XIM_MOREDATA",
93# endif
94#endif
95};
96
97/////////////////////////////////////////////////////////////////////////////
98
35refcounted::refcounted (const char *id) 99refcounted::refcounted (const char *id)
36{ 100{
37 this->id = strdup (id); 101 this->id = strdup (id);
38} 102}
39 103
… …
47{ 111{
48 for (T **i = this->begin (); i < this->end (); ++i) 112 for (T **i = this->begin (); i < this->end (); ++i)
49 { 113 {
50 if (!strcmp (id, (*i)->id)) 114 if (!strcmp (id, (*i)->id))
51 { 115 {
52 (*i)->referenced++; 116 ++(*i)->referenced;
117 (*i)->ref_next ();
53 return *i; 118 return *i;
54 } 119 }
55 } 120 }
56 121
57 T *obj = new T (id); 122 T *obj = new T (id);
58 123
59 obj->referenced = 1;
60
61 if (obj && obj->init ()) 124 if (obj && obj->ref_init ())
62 { 125 {
126 obj->referenced = 1;
63 this->push_back (obj); 127 this->push_back (obj);
64 return obj; 128 return obj;
65 } 129 }
66 else 130 else
67 { 131 {
… …
82 delete obj; 146 delete obj;
83 } 147 }
84} 148}
85 149
86template<class T> 150template<class T>
87refcache<T>::~refcache () 151void refcache<T>::clear ()
88{ 152{
89 while (this->size ()) 153 while (this->size ())
90 put (*this->begin ()); 154 put (*this->begin ());
91} 155}
92 156
93///////////////////////////////////////////////////////////////////////////// 157/////////////////////////////////////////////////////////////////////////////
94 158
95#ifdef USE_XIM 159#ifdef USE_XIM
160
96static void 161static void
97#if XIMCB_PROTO_BROKEN 162#if XIMCB_PROTO_BROKEN
98im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3) 163im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3)
99#else 164#else
100im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3) 165im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3)
… …
107 172
108 display->xims.erase (find (display->xims.begin (), display->xims.end (), xim)); 173 display->xims.erase (find (display->xims.begin (), display->xims.end (), xim));
109 display->im_change_cb (); 174 display->im_change_cb ();
110} 175}
111 176
177bool
112bool rxvt_xim::init () 178rxvt_xim::ref_init ()
113{ 179{
114 display = GET_R->display; //HACK: TODO 180 display = GET_R->display; //HACK: TODO
115 181
116 xim = XOpenIM (display->display, NULL, NULL, NULL); 182 xim = XOpenIM (display->dpy, 0, 0, 0);
117 183
118 if (!xim) 184 if (!xim)
119 return false; 185 return false;
120 186
121 XIMCallback ximcallback; 187 XIMCallback ximcallback;
122 ximcallback.client_data = (XPointer)this; 188 ximcallback.client_data = (XPointer)this;
123 ximcallback.callback = im_destroy_cb; 189 ximcallback.callback = im_destroy_cb;
124 190
125 XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL); 191 XSetIMValues (xim, XNDestroyCallback, &ximcallback, 0);
126 192
127 return true; 193 return true;
128} 194}
129 195
130rxvt_xim::~rxvt_xim () 196rxvt_xim::~rxvt_xim ()
131{ 197{
132 if (xim) 198 if (xim)
133 XCloseIM (xim); 199 XCloseIM (xim);
134} 200}
201
135#endif 202#endif
203
204/////////////////////////////////////////////////////////////////////////////
205
206#if XFT
207rxvt_drawable::~rxvt_drawable ()
208{
209 if (xftdrawable)
210 XftDrawDestroy (xftdrawable);
211}
212
213rxvt_drawable::operator XftDraw *()
214{
215 if (!xftdrawable)
216 xftdrawable = XftDrawCreate (screen->dpy, drawable, screen->visual, screen->cmap);
217
218 return xftdrawable;
219}
220#endif
221
222/////////////////////////////////////////////////////////////////////////////
223
224#if XFT
225
226// not strictly necessary as it is only used with superclass of zero_initialised
227rxvt_screen::rxvt_screen ()
228: scratch_area (0)
229{
230}
231
232rxvt_drawable &rxvt_screen::scratch_drawable (int w, int h)
233{
234 // it's actually faster to re-allocate every time. don't ask me
235 // why, but its likely no big deal there are no roundtrips
236 // (I think/hope).
237 if (!scratch_area || w > scratch_w || h > scratch_h || 1/*D*/)
238 {
239 if (scratch_area)
240 {
241 XFreePixmap (dpy, scratch_area->drawable);
242 delete scratch_area;
243 }
244
245 Pixmap pm = XCreatePixmap (dpy, RootWindowOfScreen (ScreenOfDisplay (dpy, display->screen)),
246 scratch_w = w, scratch_h = h, depth);
247
248 scratch_area = new rxvt_drawable (this, pm);
249 }
250
251 return *scratch_area;
252}
253
254#endif
255
256void
257rxvt_screen::set (rxvt_display *disp)
258{
259 display = disp;
260 dpy = disp->dpy;
261
262 Screen *screen = ScreenOfDisplay (dpy, disp->screen);
263
264 depth = DefaultDepthOfScreen (screen);
265 visual = DefaultVisualOfScreen (screen);
266 cmap = DefaultColormapOfScreen (screen);
267}
268
269void
270rxvt_screen::set (rxvt_display *disp, int bitdepth)
271{
272 set (disp);
273
274#if XFT
275 XVisualInfo vinfo;
276
277 if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo))
278 {
279 depth = bitdepth;
280 visual = vinfo.visual;
281 cmap = XCreateColormap (dpy, disp->root, visual, AllocNone);
282 }
283#endif
284}
285
286void
287rxvt_screen::clear ()
288{
289#if XFT
290 if (scratch_area)
291 {
292 XFreePixmap (dpy, scratch_area->drawable);
293 delete scratch_area;
294 }
295#endif
296
297 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (dpy, display->screen)))
298 XFreeColormap (dpy, cmap);
299}
136 300
137///////////////////////////////////////////////////////////////////////////// 301/////////////////////////////////////////////////////////////////////////////
138 302
139rxvt_display::rxvt_display (const char *id) 303rxvt_display::rxvt_display (const char *id)
140: refcounted (id) 304: refcounted (id)
141, x_ev (this, &rxvt_display::x_cb) 305, x_ev (this, &rxvt_display::x_cb)
142, selection_owner (0) 306, selection_owner (0)
143{ 307{
144} 308}
145 309
310XrmDatabase
311rxvt_display::get_resources (bool refresh)
312{
313 char *homedir = (char *)getenv ("HOME");
314 char fname[1024];
315
316 /*
317 * get resources using the X library function
318 */
319 char *displayResource, *xe;
320 XrmDatabase rdb1, database = 0;
321
322 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20
323
324 // 6. System wide per application default file.
325
326 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */
327 if ((xe = (char *)getenv ("XAPPLRESDIR")))
328 {
329 snprintf (fname, sizeof (fname), "%s/%s", xe, RESCLASS);
330
331 if ((rdb1 = XrmGetFileDatabase (fname)))
332 XrmMergeDatabases (rdb1, &database);
333 }
334
335 // 5. User's per application default file.
336 // none
337
338 // 4. User's defaults file.
339 /* Get any Xserver defaults */
340 if (refresh)
341 {
342 // fucking xlib keeps a copy of the rm string
343 Atom actual_type;
344 int actual_format;
345 unsigned long nitems, nremaining;
346 char *val = 0;
347
348#if XLIB_ILLEGAL_ACCESS
349 if (dpy->xdefaults)
350 XFree (dpy->xdefaults);
351#endif
352
353 if (XGetWindowProperty (dpy, root, XA_RESOURCE_MANAGER,
354 0L, 100000000L, False,
355 XA_STRING, &actual_type, &actual_format,
356 &nitems, &nremaining,
357 (unsigned char **)&val) == Success
358 && actual_type == XA_STRING
359 && actual_format == 8)
360 displayResource = val;
361 else
362 {
363 displayResource = 0;
364 if (val)
365 XFree(val);
366 }
367
368#if XLIB_ILLEGAL_ACCESS
369 dpy->xdefaults = displayResource;
370#endif
371 }
372 else
373 displayResource = XResourceManagerString (dpy);
374
375 if (displayResource)
376 {
377 if ((rdb1 = XrmGetStringDatabase (displayResource)))
378 XrmMergeDatabases (rdb1, &database);
379 }
380 else if (homedir)
381 {
382 snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir);
383
384 if ((rdb1 = XrmGetFileDatabase (fname)))
385 XrmMergeDatabases (rdb1, &database);
386 }
387
388#if !XLIB_ILLEGAL_ACCESS
389 if (refresh && displayResource)
390 XFree (displayResource);
391#endif
392
393 /* Get screen specific resources */
394 displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen));
395
396 if (displayResource)
397 {
398 if ((rdb1 = XrmGetStringDatabase (displayResource)))
399 /* Merge with screen-independent resources */
400 XrmMergeDatabases (rdb1, &database);
401
402 XFree (displayResource);
403 }
404
405 // 3. User's per host defaults file
406 /* Add in XENVIRONMENT file */
407 if ((xe = (char *)getenv ("XENVIRONMENT"))
408 && (rdb1 = XrmGetFileDatabase (xe)))
409 XrmMergeDatabases (rdb1, &database);
410 else if (homedir)
411 {
412 struct utsname un;
413
414 if (!uname (&un))
415 {
416 snprintf (fname, sizeof (fname), "%s/.Xdefaults-%s", homedir, un.nodename);
417
418 if ((rdb1 = XrmGetFileDatabase (fname)))
419 XrmMergeDatabases (rdb1, &database);
420 }
421 }
422
423 return database;
424}
425
146bool rxvt_display::init () 426bool rxvt_display::ref_init ()
147{ 427{
428#ifdef LOCAL_X_IS_UNIX
429 if (id[0] == ':')
430 {
431 val = rxvt_malloc (5 + strlen (id) + 1);
432 strcpy (val, "unix/");
433 strcat (val, id);
434 dpy = XOpenDisplay (val);
435 free (val);
436 }
437 else
438#endif
439 dpy = 0;
440
441 if (!dpy)
148 display = XOpenDisplay (id); 442 dpy = XOpenDisplay (id);
149 443
150 if (!display) 444 if (!dpy)
151 return false; 445 return false;
152 446
153 screen = DefaultScreen (display); 447 screen = DefaultScreen (dpy);
154 root = DefaultRootWindow (display); 448 root = DefaultRootWindow (dpy);
155 visual = DefaultVisual (display, screen);
156 cmap = DefaultColormap (display, screen);
157 depth = DefaultDepth (display, screen);
158 449
450 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
451 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
452
453 XrmSetDatabase (dpy, get_resources (false));
454
455#ifdef POINTER_BLANK
456 XColor blackcolour;
457 blackcolour.red = 0;
458 blackcolour.green = 0;
459 blackcolour.blue = 0;
460 Font f = XLoadFont (dpy, "fixed");
461 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
462 &blackcolour, &blackcolour);
463 XUnloadFont (dpy, f);
464#endif
465
159 int fd = XConnectionNumber (display); 466 int fd = XConnectionNumber (dpy);
160 467
161#ifndef NO_SLOW_LINK_SUPPORT 468#ifndef NO_SLOW_LINK_SUPPORT
162 // try to detetc wether we have a local connection. 469 // try to detect wether we have a local connection.
163 // assume unix domains socket == local, everything else not 470 // assume unix domains socket == local, everything else not
164 // TODO: might want to check for inet/127.0.0.1 471 // TODO: might want to check for inet/127.0.0.1
165 is_local = 0; 472 is_local = 0;
166 sockaddr_un sa; 473 sockaddr_un sa;
167 socklen_t sl = sizeof (sa); 474 socklen_t sl = sizeof (sa);
168 475
169 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 476 if (!getsockname (fd, (sockaddr *)&sa, &sl))
170 is_local = sa.sun_family == AF_LOCAL; 477 is_local = sa.sun_family == AF_LOCAL;
171#endif 478#endif
172 479
173#ifdef PREFER_24BIT
174 /*
175 * If depth is not 24, look for a 24bit visual.
176 */
177 if (depth != 24)
178 {
179 XVisualInfo vinfo;
180
181 if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo))
182 {
183 depth = 24;
184 visual = vinfo.visual;
185 cmap = XCreateColormap (display,
186 RootWindow (display, screen),
187 visual, AllocNone);
188 }
189 }
190#endif
191
192 x_ev.start (fd, EVENT_READ); 480 x_ev.start (fd, EVENT_READ);
193 fcntl (fd, F_SETFD, FD_CLOEXEC); 481 fcntl (fd, F_SETFD, FD_CLOEXEC);
194 482
195 XSelectInput (display, root, PropertyChangeMask); 483 XSelectInput (dpy, root, PropertyChangeMask);
484
485 flush ();
486
487 return true;
488}
489
490void
491rxvt_display::ref_next ()
492{
493 // TODO: somehow check wether the database files/resources changed
494 // before affording re-loading/parsing
495 XrmDestroyDatabase (XrmGetDatabase (dpy));
496 XrmSetDatabase (dpy, get_resources (true));
497}
498
499rxvt_display::~rxvt_display ()
500{
501 if (!dpy)
502 return;
503
504#ifdef POINTER_BLANK
505 XFreeCursor (dpy, blank_cursor);
506#endif
507 x_ev.stop ();
196#ifdef USE_XIM 508#ifdef USE_XIM
197 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0); 509 xims.clear ();
198#endif 510#endif
199
200 flush ();
201
202 return true;
203}
204
205rxvt_display::~rxvt_display ()
206{
207 x_ev.stop ();
208
209 if (display)
210 XCloseDisplay (display); 511 XCloseDisplay (dpy);
211} 512}
212 513
213#ifdef USE_XIM 514#ifdef USE_XIM
214void rxvt_display::im_change_cb () 515void rxvt_display::im_change_cb ()
215{ 516{
… …
217 (*i)->call (); 518 (*i)->call ();
218} 519}
219 520
220void rxvt_display::im_change_check () 521void rxvt_display::im_change_check ()
221{ 522{
222 // make sure we only call im_change_cb when a new input method 523 // try to only call im_change_cb when a new input method
223 // registers, as xlib crashes due to a race otherwise. 524 // registers, as xlib crashes due to a race otherwise.
224 Atom actual_type, *atoms; 525 Atom actual_type, *atoms;
225 int actual_format; 526 int actual_format;
226 unsigned long nitems, bytes_after; 527 unsigned long nitems, bytes_after;
227 528
228 if (XGetWindowProperty (display, root, xa_xim_servers, 0L, 1000000L, 529 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
229 False, XA_ATOM, &actual_type, &actual_format, 530 False, XA_ATOM, &actual_type, &actual_format,
230 &nitems, &bytes_after, (unsigned char **)&atoms) 531 &nitems, &bytes_after, (unsigned char **)&atoms)
231 != Success ) 532 != Success )
232 return; 533 return;
233 534
234 if (actual_type == XA_ATOM && actual_format == 32) 535 if (actual_type == XA_ATOM && actual_format == 32)
235 for (int i = 0; i < nitems; i++) 536 for (int i = 0; i < nitems; i++)
236 if (XGetSelectionOwner (display, atoms[i])) 537 if (XGetSelectionOwner (dpy, atoms[i]))
237 { 538 {
238 im_change_cb (); 539 im_change_cb ();
239 break; 540 break;
240 } 541 }
241 542
… …
246void rxvt_display::x_cb (io_watcher &w, short revents) 547void rxvt_display::x_cb (io_watcher &w, short revents)
247{ 548{
248 do 549 do
249 { 550 {
250 XEvent xev; 551 XEvent xev;
251 XNextEvent (display, &xev); 552 XNextEvent (dpy, &xev);
252 553
253#ifdef USE_XIM 554#ifdef USE_XIM
254 if (!XFilterEvent (&xev, None)) 555 if (!XFilterEvent (&xev, None))
255 { 556 {
256
257 if (xev.type == PropertyNotify 557 if (xev.type == PropertyNotify
258 && xev.xany.window == root 558 && xev.xany.window == root
259 && xev.xproperty.atom == xa_xim_servers) 559 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
260 im_change_check (); 560 im_change_check ();
261#endif 561#endif
262 for (int i = xw.size (); i--; ) 562 for (int i = xw.size (); i--; )
263 { 563 {
264 if (!xw[i]) 564 if (!xw[i])
… …
268 } 568 }
269#ifdef USE_XIM 569#ifdef USE_XIM
270 } 570 }
271#endif 571#endif
272 } 572 }
273 while (XEventsQueued (display, QueuedAlready)); 573 while (XEventsQueued (dpy, QueuedAlready));
274 574
275 flush (); 575 XFlush (dpy);
276} 576}
277 577
278void rxvt_display::flush () 578void rxvt_display::flush ()
279{ 579{
580 if (XEventsQueued (dpy, QueuedAlready))
581 x_cb (x_ev, EVENT_READ);
582
280 XFlush (display); 583 XFlush (dpy);
281} 584}
282 585
283void rxvt_display::reg (xevent_watcher *w) 586void rxvt_display::reg (xevent_watcher *w)
284{ 587{
285 xw.push_back (w); 588 xw.push_back (w);
… …
299 602
300 selection_owner = owner; 603 selection_owner = owner;
301} 604}
302 605
303#ifdef USE_XIM 606#ifdef USE_XIM
607
304void rxvt_display::reg (im_watcher *w) 608void rxvt_display::reg (im_watcher *w)
305{ 609{
306 imw.push_back (w); 610 imw.push_back (w);
307} 611}
308 612
… …
332 return xim; 636 return xim;
333} 637}
334 638
335void rxvt_display::put_xim (rxvt_xim *xim) 639void rxvt_display::put_xim (rxvt_xim *xim)
336{ 640{
641# if XLIB_IS_RACEFREE
337 xims.put (xim); 642 xims.put (xim);
643# endif
338} 644}
645
339#endif 646#endif
340 647
341Atom rxvt_display::atom (const char *name) 648Atom rxvt_display::atom (const char *name)
342{ 649{
343 return XInternAtom (display, name, False); 650 return XInternAtom (dpy, name, False);
344} 651}
345 652
346///////////////////////////////////////////////////////////////////////////// 653/////////////////////////////////////////////////////////////////////////////
347 654
348template class refcache<rxvt_display>; 655template class refcache<rxvt_display>;
349refcache<rxvt_display> displays; 656refcache<rxvt_display> displays;
350 657
351///////////////////////////////////////////////////////////////////////////// 658/////////////////////////////////////////////////////////////////////////////
352 659
353bool 660bool
354rxvt_color::set (rxvt_display *display, Pixel p) 661rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
355{ 662{
356#if XFT 663#if XFT
357 XColor xc; 664 XRenderPictFormat *format;
358 665
359 xc.pixel = p; 666 // FUCKING Xft gets it wrong, of course, so work around it.
360 if (!XQueryColor (display->display, display->cmap, &xc)) 667 // Transparency users should eat shit and die, and then
361 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;
362 677
678 c.pixel = ((color.r * format->direct.redMask / rgba::MAX_CC) << format->direct.red )
679 | ((color.g * format->direct.greenMask / rgba::MAX_CC) << format->direct.green)
680 | ((color.b * format->direct.blueMask / rgba::MAX_CC) << format->direct.blue )
681 | ((color.a * format->direct.alphaMask / rgba::MAX_CC) << format->direct.alpha);
682
683 return true;
684 }
685 else
686 {
363 XRenderColor d; 687 XRenderColor d;
364 688
365 d.red = xc.red; 689 d.red = color.r;
366 d.green = xc.green; 690 d.green = color.g;
367 d.blue = xc.blue; 691 d.blue = color.b;
368 d.alpha = 0xffff; 692 d.alpha = color.a;
369 693
370 return 694 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
371 XftColorAllocValue (display->display, 695 }
372 display->visual,
373 display->cmap,
374 &d, &c);
375#else 696#else
376 this->p = p; 697 c.red = color.r;
377#endif 698 c.green = color.g;
699 c.blue = color.b;
378 700
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))
379 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;
380} 721}
381 722
382bool 723bool
383rxvt_color::set (rxvt_display *display, const char *name) 724rxvt_color::set (rxvt_screen *screen, const char *name)
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)
384{ 814{
385#if XFT 815#if XFT
386 return XftColorAllocName (display->display, display->visual, display->cmap, 816 color.r = c.color.red;
387 name, &c); 817 color.g = c.color.green;
818 color.b = c.color.blue;
819 color.a = c.color.alpha;
388#else 820#else
389 XColor xc; 821 color.r = c.red;
390 822 color.g = c.green;
391 if (XParseColor (display->display, display->cmap, name, &xc)) 823 color.b = c.blue;
392 return set (display, xc.red, xc.green, xc.blue); 824 color.a = rgba::MAX_CC;
393
394 return false;
395#endif 825#endif
396} 826}
397 827
398bool 828void
399rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) 829rxvt_color::get (XColor &color)
400{ 830{
401 XColor xc; 831 rgba c;
832 get (c);
402 833
403 xc.red = cr; 834 color.red = c.r;
404 xc.green = cg; 835 color.green = c.g;
405 xc.blue = cb; 836 color.blue = c.b;
406 xc.flags = DoRed | DoGreen | DoBlue; 837 color.pixel = (Pixel)*this;
407
408 if (XAllocColor (display->display, display->cmap, &xc))
409 return set (display, xc.pixel);
410
411 return false;
412} 838}
413 839
414void 840void
415rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) 841rxvt_color::free (rxvt_screen *screen)
416{ 842{
417#if XFT 843#if XFT
418 cr = c.color.red; 844 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
419 cg = c.color.green;
420 cb = c.color.blue;
421#else 845#else
422 XColor c; 846 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
423
424 c.pixel = p;
425 XQueryColor (display->display, display->cmap, &c);
426
427 cr = c.red;
428 cg = c.green;
429 cb = c.blue;
430#endif 847#endif
431} 848}
432 849
433void 850void
434rxvt_color::free (rxvt_display *display) 851rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
435{ 852{
436#if XFT 853 rgba c;
437 XftColorFree (display->display, display->visual, display->cmap, &c); 854 get (c);
438#else
439 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
440#endif
441}
442 855
443rxvt_color 856 result.set (
444rxvt_color::fade (rxvt_display *display, int percent) 857 screen,
445{ 858 rgba (
446 unsigned short cr, cg, cb; 859 lerp (c.r, to.r, percent),
447 rxvt_color faded; 860 lerp (c.g, to.g, percent),
448 861 lerp (c.b, to.b, percent),
449 get (display, cr, cg, cb); 862 lerp (c.a, to.a, percent)
450 faded.set (display, 863 )
451 cr * percent / 100, 864 );
452 cg * percent / 100,
453 cb * percent / 100);
454
455 return faded;
456} 865}
457 866

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