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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 1.51 by root, Sat Feb 18 14:14:43 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#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
40refcounted::~refcounted () 104refcounted::~refcounted ()
41{ 105{
42 free (id); 106 free (id);
… …
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)
101#endif 166#endif
102{ 167{
103 rxvt_xim *xim = (rxvt_xim *)client_data; 168 rxvt_xim *xim = (rxvt_xim *)client_data;
104 rxvt_display *display = xim->display; 169 rxvt_display *display = xim->display;
105 170
171 xim->xim = 0;
172
106 display->xims.erase (find (display->xims.begin (), display->xims.end (), xim)); 173 display->xims.erase (find (display->xims.begin (), display->xims.end (), xim));
107
108 display->im_change_cb (); 174 display->im_change_cb ();
109} 175}
110 176
177bool
111bool rxvt_xim::init () 178rxvt_xim::ref_init ()
112{ 179{
113 display = GET_R->display; //HACK: TODO 180 display = GET_R->display; //HACK: TODO
114 181
115 xim = XOpenIM (display->display, NULL, NULL, NULL); 182 xim = XOpenIM (display->dpy, 0, 0, 0);
116 183
117 if (!xim) 184 if (!xim)
118 return false; 185 return false;
119 186
120 XIMCallback ximcallback; 187 XIMCallback ximcallback;
121 ximcallback.client_data = (XPointer)this; 188 ximcallback.client_data = (XPointer)this;
122 ximcallback.callback = im_destroy_cb; 189 ximcallback.callback = im_destroy_cb;
123 190
124 XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL); 191 XSetIMValues (xim, XNDestroyCallback, &ximcallback, 0);
125 192
126 return true; 193 return true;
127} 194}
128 195
129rxvt_xim::~rxvt_xim () 196rxvt_xim::~rxvt_xim ()
130{ 197{
131 if (xim) 198 if (xim)
132 XCloseIM (xim); 199 XCloseIM (xim);
133} 200}
201
134#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}
135 300
136///////////////////////////////////////////////////////////////////////////// 301/////////////////////////////////////////////////////////////////////////////
137 302
138rxvt_display::rxvt_display (const char *id) 303rxvt_display::rxvt_display (const char *id)
139: refcounted (id) 304: refcounted (id)
140, x_ev (this, &rxvt_display::x_cb) 305, x_ev (this, &rxvt_display::x_cb)
141, selection_owner (0) 306, selection_owner (0)
142{ 307{
143} 308}
144 309
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
145bool rxvt_display::init () 426bool rxvt_display::ref_init ()
146{ 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)
147 display = XOpenDisplay (id); 442 dpy = XOpenDisplay (id);
148 443
149 if (!display) 444 if (!dpy)
150 return false; 445 return false;
151 446
152 screen = DefaultScreen (display); 447 screen = DefaultScreen (dpy);
153 root = DefaultRootWindow (display); 448 root = DefaultRootWindow (dpy);
154 visual = DefaultVisual (display, screen);
155 cmap = DefaultColormap (display, screen);
156 depth = DefaultDepth (display, screen);
157 449
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
158 int fd = XConnectionNumber (display); 466 int fd = XConnectionNumber (dpy);
159 467
160#ifndef NO_SLOW_LINK_SUPPORT 468#ifndef NO_SLOW_LINK_SUPPORT
161 // try to detetc wether we have a local connection. 469 // try to detect wether we have a local connection.
162 // assume unix domains socket == local, everything else not 470 // assume unix domains socket == local, everything else not
163 // TODO: might want to check for inet/127.0.0.1 471 // TODO: might want to check for inet/127.0.0.1
164 is_local = 0; 472 is_local = 0;
165 sockaddr_un sa; 473 sockaddr_un sa;
166 socklen_t sl = sizeof (sa); 474 socklen_t sl = sizeof (sa);
167 475
168 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 476 if (!getsockname (fd, (sockaddr *)&sa, &sl))
169 is_local = sa.sun_family == AF_LOCAL; 477 is_local = sa.sun_family == AF_LOCAL;
170#endif 478#endif
171 479
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
191 x_ev.start (fd, EVENT_READ); 480 x_ev.start (fd, EVENT_READ);
192 fcntl (fd, F_SETFD, FD_CLOEXEC); 481 fcntl (fd, F_SETFD, FD_CLOEXEC);
193 482
194 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 ();
195#ifdef USE_XIM 508#ifdef USE_XIM
196 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0); 509 xims.clear ();
197#endif 510#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); 511 XCloseDisplay (dpy);
210} 512}
211 513
212#ifdef USE_XIM 514#ifdef USE_XIM
213void rxvt_display::im_change_cb () 515void rxvt_display::im_change_cb ()
214{ 516{
215 for (im_watcher **i = imw.begin (); i != imw.end (); ++i) 517 for (im_watcher **i = imw.begin (); i != imw.end (); ++i)
216 (*i)->call (); 518 (*i)->call ();
217} 519}
520
521void rxvt_display::im_change_check ()
522{
523 // try to only call im_change_cb when a new input method
524 // registers, as xlib crashes due to a race otherwise.
525 Atom actual_type, *atoms;
526 int actual_format;
527 unsigned long nitems, bytes_after;
528
529 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
530 False, XA_ATOM, &actual_type, &actual_format,
531 &nitems, &bytes_after, (unsigned char **)&atoms)
532 != Success )
533 return;
534
535 if (actual_type == XA_ATOM && actual_format == 32)
536 for (int i = 0; i < nitems; i++)
537 if (XGetSelectionOwner (dpy, atoms[i]))
538 {
539 im_change_cb ();
540 break;
541 }
542
543 XFree (atoms);
544}
218#endif 545#endif
219 546
220void rxvt_display::x_cb (io_watcher &w, short revents) 547void rxvt_display::x_cb (io_watcher &w, short revents)
221{ 548{
222 do 549 do
223 { 550 {
224 XEvent xev; 551 XEvent xev;
225 XNextEvent (display, &xev); 552 XNextEvent (dpy, &xev);
226
227 //printf ("T %d w %lx\n", xev.type, xev.xany.window);//D
228 553
229#ifdef USE_XIM 554#ifdef USE_XIM
230 if (xev.type == PropertyNotify 555 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 { 556 {
557 if (xev.type == PropertyNotify
558 && xev.xany.window == root
559 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
560 im_change_check ();
561#endif
562 for (int i = xw.size (); i--; )
563 {
238 if (!xw[i]) 564 if (!xw[i])
239 xw.erase_unordered (i); 565 xw.erase_unordered (i);
240 else if (xw[i]->window == xev.xany.window) 566 else if (xw[i]->window == xev.xany.window)
241 xw[i]->call (xev); 567 xw[i]->call (xev);
568 }
569#ifdef USE_XIM
242 } 570 }
571#endif
243 } 572 }
244 while (XPending (display)); 573 while (XEventsQueued (dpy, QueuedAlready));
245 574
246 flush (); 575 XFlush (dpy);
247} 576}
248 577
249void rxvt_display::flush () 578void rxvt_display::flush ()
250{ 579{
251 for (;;) 580 if (XEventsQueued (dpy, QueuedAlready))
252 { 581 x_cb (x_ev, EVENT_READ);
253 if (!XPending (display))
254 break;
255 582
256 x_cb (x_ev, 0); 583 XFlush (dpy);
257 }
258} 584}
259 585
260void rxvt_display::reg (xevent_watcher *w) 586void rxvt_display::reg (xevent_watcher *w)
261{ 587{
262 xw.push_back (w); 588 xw.push_back (w);
… …
276 602
277 selection_owner = owner; 603 selection_owner = owner;
278} 604}
279 605
280#ifdef USE_XIM 606#ifdef USE_XIM
607
281void rxvt_display::reg (im_watcher *w) 608void rxvt_display::reg (im_watcher *w)
282{ 609{
283 imw.push_back (w); 610 imw.push_back (w);
284} 611}
285 612
… …
309 return xim; 636 return xim;
310} 637}
311 638
312void rxvt_display::put_xim (rxvt_xim *xim) 639void rxvt_display::put_xim (rxvt_xim *xim)
313{ 640{
641# if XLIB_IS_RACEFREE
314 xims.put (xim); 642 xims.put (xim);
643# endif
315} 644}
645
316#endif 646#endif
317 647
318Atom rxvt_display::atom (const char *name) 648Atom rxvt_display::atom (const char *name)
319{ 649{
320 return XInternAtom (display, name, False); 650 return XInternAtom (dpy, name, False);
321} 651}
322 652
323///////////////////////////////////////////////////////////////////////////// 653/////////////////////////////////////////////////////////////////////////////
324 654
325template class refcache<rxvt_display>; 655template class refcache<rxvt_display>;
326refcache<rxvt_display> displays; 656refcache<rxvt_display> displays;
327 657
328///////////////////////////////////////////////////////////////////////////// 658/////////////////////////////////////////////////////////////////////////////
329 659
330bool 660bool
331rxvt_color::set (rxvt_display *display, Pixel p) 661rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
332{ 662{
333#if XFT 663#if XFT
334 XColor xc; 664 XRenderPictFormat *format;
335 665
336 xc.pixel = p; 666 // FUCKING Xft gets it wrong, of course, so work around it.
337 if (!XQueryColor (display->display, display->cmap, &xc)) 667 // Transparency users should eat shit and die, and then
338 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;
339 677
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 {
340 XRenderColor d; 687 XRenderColor d;
341 688
342 d.red = xc.red; 689 d.red = color.r;
343 d.green = xc.green; 690 d.green = color.g;
344 d.blue = xc.blue; 691 d.blue = color.b;
345 d.alpha = 0xffff; 692 d.alpha = color.a;
346 693
347 return 694 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
348 XftColorAllocValue (display->display, 695 }
349 display->visual,
350 display->cmap,
351 &d, &c);
352#else 696#else
353 this->p = p; 697 c.red = color.r;
354#endif 698 c.green = color.g;
699 c.blue = color.b;
355 700
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))
356 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;
357} 721}
358 722
359bool 723bool
360rxvt_color::set (rxvt_display *display, const char *name) 724rxvt_color::set (rxvt_screen *screen, const char *name)
361{ 725{
362 XColor xc; 726 rgba c;
727 char eos;
728 int skip;
363 729
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
364 if (XParseColor (display->display, display->cmap, name, &xc)) 744 if (XParseColor (screen->dpy, screen->cmap, name, &xc))
365 return set (display, xc.red, xc.green, xc.blue); 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;
366 755
367 return false; 756 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
757 }
758 }
759
760 return set (screen, c);
368} 761}
369 762
370bool 763bool
371rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) 764rxvt_color::set (rxvt_screen *screen, const rgba &color)
372{ 765{
373 XColor xc; 766 bool got = alloc (screen, color);
374 767
768#if !ENABLE_MINIMAL
769 int cmap_size = screen->visual->map_entries;
770
771 if (!got
772 && screen->visual->c_class == PseudoColor
773 && cmap_size < 4096)
774 {
775 XColor *colors = new XColor [screen->visual->map_entries];
776
777 for (int i = 0; i < cmap_size; i++)
778 colors [i].pixel = i;
779
780 // many kilobytes transfer per colour, but pseudocolor isn't worth
781 // many extra optimisations.
782 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
783
784 int diff = 0x7fffffffUL;
785 XColor *best = colors;
786
787 for (int i = 0; i < cmap_size; i++)
788 {
789 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
790 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
791 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
792
793 if (d < diff)
794 {
795 diff = d;
796 best = colors + i;
797 }
798 }
799
800 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
801 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
802
803 got = alloc (screen, rgba (best->red, best->green, best->blue));
804
805 delete colors;
806 }
807#endif
808
809 return got;
810}
811
812void
813rxvt_color::get (rgba &color)
814{
815#if XFT
816 color.r = c.color.red;
817 color.g = c.color.green;
818 color.b = c.color.blue;
819 color.a = c.color.alpha;
820#else
821 color.r = c.red;
822 color.g = c.green;
823 color.b = c.blue;
824 color.a = rgba::MAX_CC;
825#endif
826}
827
828void
829rxvt_color::get (XColor &color)
830{
831 rgba c;
832 get (c);
833
375 xc.red = cr; 834 color.red = c.r;
376 xc.green = cg; 835 color.green = c.g;
377 xc.blue = cb; 836 color.blue = c.b;
378 xc.flags = DoRed | DoGreen | DoBlue; 837 color.pixel = (Pixel)*this;
379
380 if (XAllocColor (display->display, display->cmap, &xc))
381 return set (display, xc.pixel);
382
383 return false;
384} 838}
385 839
386void 840void
387rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) 841rxvt_color::free (rxvt_screen *screen)
388{ 842{
389#if XFT 843#if XFT
390 cr = c.color.red; 844 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
391 cg = c.color.green;
392 cb = c.color.blue;
393#else 845#else
394 XColor c; 846 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 847#endif
403} 848}
404 849
405void 850void
406rxvt_color::free (rxvt_display *display) 851rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
407{ 852{
408#if XFT 853 rgba c;
409 XftColorFree (display->display, display->visual, display->cmap, &c); 854 get (c);
410#else
411 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
412#endif
413}
414 855
415rxvt_color 856 result.set (
416rxvt_color::fade (rxvt_display *display, int percent) 857 screen,
417{ 858 rgba (
418 unsigned short cr, cg, cb; 859 lerp (c.r, to.r, percent),
419 rxvt_color faded; 860 lerp (c.g, to.g, percent),
420 861 lerp (c.b, to.b, percent),
421 get (display, cr, cg, cb); 862 lerp (c.a, to.a, percent)
422 faded.set (display, 863 )
423 cr * percent / 100, 864 );
424 cg * percent / 100,
425 cb * percent / 100);
426
427 return faded;
428} 865}
429 866

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