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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.1 by root, Sun Aug 15 00:37:04 2004 UTC vs.
Revision 1.55 by root, Sun Feb 19 16:55:03 2006 UTC

1/*--------------------------------*-C-*---------------------------------* 1/*--------------------------------*-C-*---------------------------------*
2 * File: rxvtcolor.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) 2003-2004 Marc Lehmann <pcg@goof.com>
7 * 7 *
… …
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#ifndef NO_SLOW_LINK_SUPPORT 30#include <sys/utsname.h>
31# include <sys/socket.h> 31#include <sys/socket.h>
32# 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",
33#endif 90# endif
91#endif
92};
93
94/////////////////////////////////////////////////////////////////////////////
34 95
35refcounted::refcounted (const char *id) 96refcounted::refcounted (const char *id)
36{ 97{
37 this->id = STRDUP (id); 98 this->id = strdup (id);
38} 99}
39 100
40refcounted::~refcounted () 101refcounted::~refcounted ()
41{ 102{
42 free (id); 103 free (id);
… …
47{ 108{
48 for (T **i = this->begin (); i < this->end (); ++i) 109 for (T **i = this->begin (); i < this->end (); ++i)
49 { 110 {
50 if (!strcmp (id, (*i)->id)) 111 if (!strcmp (id, (*i)->id))
51 { 112 {
52 (*i)->referenced++; 113 ++(*i)->referenced;
114 (*i)->ref_next ();
53 return *i; 115 return *i;
54 } 116 }
55 } 117 }
56 118
57 T *obj = new T (id); 119 T *obj = new T (id);
58 120
59 obj->referenced = 1;
60
61 if (obj && obj->init ()) 121 if (obj && obj->ref_init ())
62 { 122 {
123 obj->referenced = 1;
63 this->push_back (obj); 124 this->push_back (obj);
64 return obj; 125 return obj;
65 } 126 }
66 else 127 else
67 { 128 {
… …
82 delete obj; 143 delete obj;
83 } 144 }
84} 145}
85 146
86template<class T> 147template<class T>
87refcache<T>::~refcache () 148void refcache<T>::clear ()
88{ 149{
89 while (this->size ()) 150 while (this->size ())
90 put (*this->begin ()); 151 put (*this->begin ());
91} 152}
92 153
93///////////////////////////////////////////////////////////////////////////// 154/////////////////////////////////////////////////////////////////////////////
94 155
95#ifdef USE_XIM 156#ifdef USE_XIM
157
96static void 158static void
97#if XIMCB_PROTO_BROKEN 159#if XIMCB_PROTO_BROKEN
98im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3) 160im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3)
99#else 161#else
100im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3) 162im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3)
101#endif 163#endif
102{ 164{
103 rxvt_xim *xim = (rxvt_xim *)client_data; 165 rxvt_xim *xim = (rxvt_xim *)client_data;
104 rxvt_display *display = xim->display; 166 rxvt_display *display = xim->display;
105 167
168 xim->xim = 0;
169
106 display->xims.erase (find (display->xims.begin (), display->xims.end (), xim)); 170 display->xims.erase (find (display->xims.begin (), display->xims.end (), xim));
107
108 display->im_change_cb (); 171 display->im_change_cb ();
109} 172}
110 173
174bool
111bool rxvt_xim::init () 175rxvt_xim::ref_init ()
112{ 176{
113 display = GET_R->display; //HACK: TODO 177 display = GET_R->display; //HACK: TODO
114 178
115 xim = XOpenIM (display->display, NULL, NULL, NULL); 179 xim = XOpenIM (display->dpy, 0, 0, 0);
116 180
117 if (!xim) 181 if (!xim)
118 return false; 182 return false;
119 183
120 XIMCallback ximcallback; 184 XIMCallback ximcallback;
121 ximcallback.client_data = (XPointer)this; 185 ximcallback.client_data = (XPointer)this;
122 ximcallback.callback = im_destroy_cb; 186 ximcallback.callback = im_destroy_cb;
123 187
124 XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL); 188 XSetIMValues (xim, XNDestroyCallback, &ximcallback, 0);
125 189
126 return true; 190 return true;
127} 191}
128 192
129rxvt_xim::~rxvt_xim () 193rxvt_xim::~rxvt_xim ()
130{ 194{
131 if (xim) 195 if (xim)
132 XCloseIM (xim); 196 XCloseIM (xim);
133} 197}
198
134#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::set (rxvt_display *disp, int bitdepth)
268{
269 set (disp);
270
271#if XFT
272 XVisualInfo vinfo;
273
274 if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo))
275 {
276 depth = bitdepth;
277 visual = vinfo.visual;
278 cmap = XCreateColormap (dpy, disp->root, visual, AllocNone);
279 }
280#endif
281}
282
283void
284rxvt_screen::clear ()
285{
286#if XFT
287 if (scratch_area)
288 {
289 XFreePixmap (dpy, scratch_area->drawable);
290 delete scratch_area;
291 }
292#endif
293
294 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (dpy, display->screen)))
295 XFreeColormap (dpy, cmap);
296}
135 297
136///////////////////////////////////////////////////////////////////////////// 298/////////////////////////////////////////////////////////////////////////////
137 299
138rxvt_display::rxvt_display (const char *id) 300rxvt_display::rxvt_display (const char *id)
139: refcounted (id) 301: refcounted (id)
140, x_ev (this, &rxvt_display::x_cb) 302, x_ev (this, &rxvt_display::x_cb)
141, selection_owner (0) 303, selection_owner (0)
142{ 304{
143} 305}
144 306
307XrmDatabase
308rxvt_display::get_resources (bool refresh)
309{
310 char *homedir = (char *)getenv ("HOME");
311 char fname[1024];
312
313 /*
314 * get resources using the X library function
315 */
316 char *displayResource, *xe;
317 XrmDatabase rdb1, database = 0;
318
319 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20
320
321 // 6. System wide per application default file.
322
323 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */
324 if ((xe = (char *)getenv ("XAPPLRESDIR")))
325 {
326 snprintf (fname, sizeof (fname), "%s/%s", xe, RESCLASS);
327
328 if ((rdb1 = XrmGetFileDatabase (fname)))
329 XrmMergeDatabases (rdb1, &database);
330 }
331
332 // 5. User's per application default file.
333 // none
334
335 // 4. User's defaults file.
336 /* Get any Xserver defaults */
337 if (refresh)
338 {
339 // fucking xlib keeps a copy of the rm string
340 Atom actual_type;
341 int actual_format;
342 unsigned long nitems, nremaining;
343 char *val = 0;
344
345#if XLIB_ILLEGAL_ACCESS
346 if (dpy->xdefaults)
347 XFree (dpy->xdefaults);
348#endif
349
350 if (XGetWindowProperty (dpy, RootWindow (dpy, 0), XA_RESOURCE_MANAGER,
351 0L, 100000000L, False,
352 XA_STRING, &actual_type, &actual_format,
353 &nitems, &nremaining,
354 (unsigned char **)&val) == Success
355 && actual_type == XA_STRING
356 && actual_format == 8)
357 displayResource = val;
358 else
359 {
360 displayResource = 0;
361 if (val)
362 XFree(val);
363 }
364
365#if XLIB_ILLEGAL_ACCESS
366 dpy->xdefaults = displayResource;
367#endif
368 }
369 else
370 displayResource = XResourceManagerString (dpy);
371
372 if (displayResource)
373 {
374 if ((rdb1 = XrmGetStringDatabase (displayResource)))
375 XrmMergeDatabases (rdb1, &database);
376 }
377 else if (homedir)
378 {
379 snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir);
380
381 if ((rdb1 = XrmGetFileDatabase (fname)))
382 XrmMergeDatabases (rdb1, &database);
383 }
384
385#if !XLIB_ILLEGAL_ACCESS
386 if (refresh && displayResource)
387 XFree (displayResource);
388#endif
389
390 /* Get screen specific resources */
391 displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen));
392
393 if (displayResource)
394 {
395 if ((rdb1 = XrmGetStringDatabase (displayResource)))
396 /* Merge with screen-independent resources */
397 XrmMergeDatabases (rdb1, &database);
398
399 XFree (displayResource);
400 }
401
402 // 3. User's per host defaults file
403 /* Add in XENVIRONMENT file */
404 if ((xe = (char *)getenv ("XENVIRONMENT"))
405 && (rdb1 = XrmGetFileDatabase (xe)))
406 XrmMergeDatabases (rdb1, &database);
407 else if (homedir)
408 {
409 struct utsname un;
410
411 if (!uname (&un))
412 {
413 snprintf (fname, sizeof (fname), "%s/.Xdefaults-%s", homedir, un.nodename);
414
415 if ((rdb1 = XrmGetFileDatabase (fname)))
416 XrmMergeDatabases (rdb1, &database);
417 }
418 }
419
420 return database;
421}
422
145bool rxvt_display::init () 423bool rxvt_display::ref_init ()
146{ 424{
425#ifdef LOCAL_X_IS_UNIX
426 if (id[0] == ':')
427 {
428 val = rxvt_malloc (5 + strlen (id) + 1);
429 strcpy (val, "unix/");
430 strcat (val, id);
431 dpy = XOpenDisplay (val);
432 free (val);
433 }
434 else
435#endif
436 dpy = 0;
437
438 if (!dpy)
147 display = XOpenDisplay (id); 439 dpy = XOpenDisplay (id);
148 440
149 if (!display) 441 if (!dpy)
150 return false; 442 return false;
151 443
152 screen = DefaultScreen (display); 444 screen = DefaultScreen (dpy);
153 root = DefaultRootWindow (display); 445 root = DefaultRootWindow (dpy);
154 visual = DefaultVisual (display, screen);
155 cmap = DefaultColormap (display, screen);
156 depth = DefaultDepth (display, screen);
157 446
447 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
448 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
449
450 XrmSetDatabase (dpy, get_resources (false));
451
452#ifdef POINTER_BLANK
453 XColor blackcolour;
454 blackcolour.red = 0;
455 blackcolour.green = 0;
456 blackcolour.blue = 0;
457 Font f = XLoadFont (dpy, "fixed");
458 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
459 &blackcolour, &blackcolour);
460 XUnloadFont (dpy, f);
461#endif
462
158 int fd = XConnectionNumber (display); 463 int fd = XConnectionNumber (dpy);
159 464
160#ifndef NO_SLOW_LINK_SUPPORT
161 // try to detetc wether we have a local connection. 465 // try to detect wether we have a local connection.
162 // assume unix domains socket == local, everything else not 466 // assume unix domains socket == local, everything else not
163 // TODO: might want to check for inet/127.0.0.1 467 // TODO: might want to check for inet/127.0.0.1
164 is_local = 0; 468 is_local = 0;
165 sockaddr_un sa; 469 sockaddr_un sa;
166 socklen_t sl = sizeof (sa); 470 socklen_t sl = sizeof (sa);
167 471
168 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 472 if (!getsockname (fd, (sockaddr *)&sa, &sl))
169 is_local = sa.sun_family == AF_LOCAL; 473 is_local = sa.sun_family == AF_LOCAL;
170#endif
171
172#ifdef PREFER_24BIT
173 /*
174 * If depth is not 24, look for a 24bit visual.
175 */
176 if (depth != 24)
177 {
178 XVisualInfo vinfo;
179
180 if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo))
181 {
182 depth = 24;
183 visual = vinfo.visual;
184 cmap = XCreateColormap (display,
185 RootWindow (display, screen),
186 visual, AllocNone);
187 }
188 }
189#endif
190 474
191 x_ev.start (fd, EVENT_READ); 475 x_ev.start (fd, EVENT_READ);
192 fcntl (fd, F_SETFD, FD_CLOEXEC); 476 fcntl (fd, F_SETFD, FD_CLOEXEC);
193 477
194 XSelectInput (display, root, PropertyChangeMask); 478 XSelectInput (dpy, root, PropertyChangeMask);
479
480 flush ();
481
482 return true;
483}
484
485void
486rxvt_display::ref_next ()
487{
488 // TODO: somehow check wether the database files/resources changed
489 // before affording re-loading/parsing
490 XrmDestroyDatabase (XrmGetDatabase (dpy));
491 XrmSetDatabase (dpy, get_resources (true));
492}
493
494rxvt_display::~rxvt_display ()
495{
496 if (!dpy)
497 return;
498
499#ifdef POINTER_BLANK
500 XFreeCursor (dpy, blank_cursor);
501#endif
502 x_ev.stop ();
195#ifdef USE_XIM 503#ifdef USE_XIM
196 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0); 504 xims.clear ();
197#endif 505#endif
198
199 flush ();
200
201 return true;
202}
203
204rxvt_display::~rxvt_display ()
205{
206 x_ev.stop ();
207
208 if (display)
209 XCloseDisplay (display); 506 XCloseDisplay (dpy);
210} 507}
211 508
212#ifdef USE_XIM 509#ifdef USE_XIM
213void rxvt_display::im_change_cb () 510void rxvt_display::im_change_cb ()
214{ 511{
215 for (im_watcher **i = imw.begin (); i != imw.end (); ++i) 512 for (im_watcher **i = imw.begin (); i != imw.end (); ++i)
216 (*i)->call (); 513 (*i)->call ();
217} 514}
515
516void rxvt_display::im_change_check ()
517{
518 // try to only call im_change_cb when a new input method
519 // registers, as xlib crashes due to a race otherwise.
520 Atom actual_type, *atoms;
521 int actual_format;
522 unsigned long nitems, bytes_after;
523
524 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
525 False, XA_ATOM, &actual_type, &actual_format,
526 &nitems, &bytes_after, (unsigned char **)&atoms)
527 != Success )
528 return;
529
530 if (actual_type == XA_ATOM && actual_format == 32)
531 for (int i = 0; i < nitems; i++)
532 if (XGetSelectionOwner (dpy, atoms[i]))
533 {
534 im_change_cb ();
535 break;
536 }
537
538 XFree (atoms);
539}
218#endif 540#endif
219 541
220void rxvt_display::x_cb (io_watcher &w, short revents) 542void rxvt_display::x_cb (io_watcher &w, short revents)
221{ 543{
222 do 544 do
223 { 545 {
224 XEvent xev; 546 XEvent xev;
225 XNextEvent (display, &xev); 547 XNextEvent (dpy, &xev);
226
227 //printf ("T %d w %lx\n", xev.type, xev.xany.window);//D
228 548
229#ifdef USE_XIM 549#ifdef USE_XIM
230 if (xev.type == PropertyNotify 550 if (!XFilterEvent (&xev, None))
231 && xev.xany.window == root
232 && xev.xproperty.atom == xa_xim_servers)
233 im_change_cb ();
234#endif
235
236 for (int i = xw.size (); i--; )
237 { 551 {
552 if (xev.type == PropertyNotify
553 && xev.xany.window == root
554 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
555 im_change_check ();
556#endif
557 for (int i = xw.size (); i--; )
558 {
238 if (!xw[i]) 559 if (!xw[i])
239 xw.erase_unordered (i); 560 xw.erase_unordered (i);
240 else if (xw[i]->window == xev.xany.window) 561 else if (xw[i]->window == xev.xany.window)
241 xw[i]->call (xev); 562 xw[i]->call (xev);
563 }
564#ifdef USE_XIM
242 } 565 }
566#endif
243 } 567 }
244 while (XPending (display)); 568 while (XEventsQueued (dpy, QueuedAlready));
245 569
246 flush (); 570 XFlush (dpy);
247} 571}
248 572
249void rxvt_display::flush () 573void rxvt_display::flush ()
250{ 574{
251 for (;;) 575 if (XEventsQueued (dpy, QueuedAlready))
252 { 576 x_cb (x_ev, EVENT_READ);
253 if (!XPending (display))
254 break;
255 577
256 x_cb (x_ev, 0); 578 XFlush (dpy);
257 }
258} 579}
259 580
260void rxvt_display::reg (xevent_watcher *w) 581void rxvt_display::reg (xevent_watcher *w)
261{ 582{
262 xw.push_back (w); 583 xw.push_back (w);
… …
276 597
277 selection_owner = owner; 598 selection_owner = owner;
278} 599}
279 600
280#ifdef USE_XIM 601#ifdef USE_XIM
602
281void rxvt_display::reg (im_watcher *w) 603void rxvt_display::reg (im_watcher *w)
282{ 604{
283 imw.push_back (w); 605 imw.push_back (w);
284} 606}
285 607
… …
309 return xim; 631 return xim;
310} 632}
311 633
312void rxvt_display::put_xim (rxvt_xim *xim) 634void rxvt_display::put_xim (rxvt_xim *xim)
313{ 635{
636# if XLIB_IS_RACEFREE
314 xims.put (xim); 637 xims.put (xim);
638# endif
315} 639}
640
316#endif 641#endif
317 642
318Atom rxvt_display::atom (const char *name) 643Atom rxvt_display::atom (const char *name)
319{ 644{
320 return XInternAtom (display, name, False); 645 return XInternAtom (dpy, name, False);
321} 646}
322 647
323///////////////////////////////////////////////////////////////////////////// 648/////////////////////////////////////////////////////////////////////////////
324 649
325template class refcache<rxvt_display>; 650template class refcache<rxvt_display>;
326refcache<rxvt_display> displays; 651refcache<rxvt_display> displays;
327 652
328///////////////////////////////////////////////////////////////////////////// 653/////////////////////////////////////////////////////////////////////////////
329 654
330bool 655bool
331rxvt_color::set (rxvt_display *display, Pixel p) 656rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
332{ 657{
333#if XFT 658#if XFT
334 XColor xc; 659 XRenderPictFormat *format;
335 660
336 xc.pixel = p; 661 // FUCKING Xft gets it wrong, of course, so work around it.
337 if (!XQueryColor (display->display, display->cmap, &xc)) 662 // Transparency users should eat shit and die, and then
338 return false; 663 // XRenderQueryPictIndexValues themselves plenty.
664 if ((screen->visual->c_class == TrueColor)
665 && (format = XRenderFindVisualFormat (screen->dpy, screen->visual)))
666 {
667 // the fun lies in doing everything manually...
668 c.color.red = color.r;
669 c.color.green = color.g;
670 c.color.blue = color.b;
671 c.color.alpha = color.a;
339 672
673 c.pixel = ((color.r * format->direct.redMask / rgba::MAX_CC) << format->direct.red )
674 | ((color.g * format->direct.greenMask / rgba::MAX_CC) << format->direct.green)
675 | ((color.b * format->direct.blueMask / rgba::MAX_CC) << format->direct.blue )
676 | ((color.a * format->direct.alphaMask / rgba::MAX_CC) << format->direct.alpha);
677
678 return true;
679 }
680 else
681 {
340 XRenderColor d; 682 XRenderColor d;
341 683
342 d.red = xc.red; 684 d.red = color.r;
343 d.green = xc.green; 685 d.green = color.g;
344 d.blue = xc.blue; 686 d.blue = color.b;
345 d.alpha = 0xffff; 687 d.alpha = color.a;
346 688
347 return 689 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
348 XftColorAllocValue (display->display, 690 }
349 display->visual,
350 display->cmap,
351 &d, &c);
352#else 691#else
353 this->p = p; 692 c.red = color.r;
354#endif 693 c.green = color.g;
694 c.blue = color.b;
355 695
696 if (screen->visual->c_class == TrueColor)
697 {
698 c.pixel = (color.r * (screen->visual->red_mask >> ctz (screen->visual->red_mask ))
699 / rgba::MAX_CC) << ctz (screen->visual->red_mask )
700 | (color.g * (screen->visual->green_mask >> ctz (screen->visual->green_mask))
701 / rgba::MAX_CC) << ctz (screen->visual->green_mask)
702 | (color.b * (screen->visual->blue_mask >> ctz (screen->visual->blue_mask ))
703 / rgba::MAX_CC) << ctz (screen->visual->blue_mask );
704
705 return true;
706 }
707 else if (XAllocColor (screen->dpy, screen->cmap, &c))
356 return true; 708 return true;
709 else
710 c.pixel = (color.r + color.g + color.b) > 128*3
711 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
712 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
713#endif
714
715 return false;
357} 716}
358 717
359bool 718bool
360rxvt_color::set (rxvt_display *display, const char *name) 719rxvt_color::set (rxvt_screen *screen, const char *name)
361{ 720{
362 XColor xc; 721 rgba c;
722 char eos;
723 int skip;
363 724
725 // parse the nonstandard "[alphapercent]" prefix
726 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
727 {
728 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
729 name += skip;
730 }
731 else
732 c.a = rgba::MAX_CC;
733
734 // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format
735 if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos))
736 {
737 XColor xc, xc_exact;
738
364 if (XParseColor (display->display, display->cmap, name, &xc)) 739 if (XParseColor (screen->dpy, screen->cmap, name, &xc))
365 return set (display, xc.red, xc.green, xc.blue); 740 {
741 c.r = xc.red;
742 c.g = xc.green;
743 c.b = xc.blue;
744 }
745 else
746 {
747 c.r = 0xffff;
748 c.g = 0x6969;
749 c.b = 0xb4b4;
366 750
367 return false; 751 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
752 }
753 }
754
755 return set (screen, c);
368} 756}
369 757
370bool 758bool
371rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) 759rxvt_color::set (rxvt_screen *screen, const rgba &color)
372{ 760{
373 XColor xc; 761 bool got = alloc (screen, color);
374 762
763#if !ENABLE_MINIMAL
764 int cmap_size = screen->visual->map_entries;
765
766 if (!got
767 && screen->visual->c_class == PseudoColor
768 && cmap_size < 4096)
769 {
770 XColor *colors = new XColor [screen->visual->map_entries];
771
772 for (int i = 0; i < cmap_size; i++)
773 colors [i].pixel = i;
774
775 // many kilobytes transfer per colour, but pseudocolor isn't worth
776 // many extra optimisations.
777 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
778
779 int diff = 0x7fffffffUL;
780 XColor *best = colors;
781
782 for (int i = 0; i < cmap_size; i++)
783 {
784 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
785 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
786 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
787
788 if (d < diff)
789 {
790 diff = d;
791 best = colors + i;
792 }
793 }
794
795 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
796 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
797
798 got = alloc (screen, rgba (best->red, best->green, best->blue));
799
800 delete colors;
801 }
802#endif
803
804 return got;
805}
806
807void
808rxvt_color::get (rgba &color)
809{
810#if XFT
811 color.r = c.color.red;
812 color.g = c.color.green;
813 color.b = c.color.blue;
814 color.a = c.color.alpha;
815#else
816 color.r = c.red;
817 color.g = c.green;
818 color.b = c.blue;
819 color.a = rgba::MAX_CC;
820#endif
821}
822
823void
824rxvt_color::get (XColor &color)
825{
826 rgba c;
827 get (c);
828
375 xc.red = cr; 829 color.red = c.r;
376 xc.green = cg; 830 color.green = c.g;
377 xc.blue = cb; 831 color.blue = c.b;
378 xc.flags = DoRed | DoGreen | DoBlue; 832 color.pixel = (Pixel)*this;
379
380 if (XAllocColor (display->display, display->cmap, &xc))
381 return set (display, xc.pixel);
382
383 return false;
384} 833}
385 834
386void 835void
387rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) 836rxvt_color::free (rxvt_screen *screen)
388{ 837{
838 if (screen->visual->c_class == TrueColor)
839 return; // nothing to do
840
389#if XFT 841#if XFT
390 cr = c.color.red; 842 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
391 cg = c.color.green;
392 cb = c.color.blue;
393#else 843#else
394 XColor c; 844 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
395
396 c.pixel = p;
397 XQueryColor (display->display, display->cmap, &c);
398
399 cr = c.red;
400 cg = c.green;
401 cb = c.blue;
402#endif 845#endif
403} 846}
404 847
405void 848void
406rxvt_color::free (rxvt_display *display) 849rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
407{ 850{
408#if XFT 851 rgba c;
409 XftColorFree (display->display, display->visual, display->cmap, &c); 852 get (c);
410#else
411 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
412#endif
413}
414 853
415rxvt_color 854 result.set (
416rxvt_color::fade (rxvt_display *display, int percent) 855 screen,
417{ 856 rgba (
418 unsigned short cr, cg, cb; 857 lerp (c.r, to.r, percent),
419 rxvt_color faded; 858 lerp (c.g, to.g, percent),
420 859 lerp (c.b, to.b, percent),
421 get (display, cr, cg, cb); 860 lerp (c.a, to.a, percent)
422 faded.set (display, 861 )
423 cr * percent / 100, 862 );
424 cg * percent / 100,
425 cb * percent / 100);
426
427 return faded;
428} 863}
429 864

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