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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.2 by root, Sun Aug 15 04:54:21 2004 UTC vs.
Revision 1.49 by root, Thu Feb 2 14:41:00 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
… …
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->display, 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
206void
207rxvt_screen::set (rxvt_display *disp)
208{
209 display = disp;
210 xdisp = disp->display;
211
212 Screen *screen = ScreenOfDisplay (xdisp, disp->screen);
213
214 depth = DefaultDepthOfScreen (screen);
215 visual = DefaultVisualOfScreen (screen);
216 cmap = DefaultColormapOfScreen (screen);
217}
218
219void
220rxvt_screen::set (rxvt_display *disp, int bitdepth)
221{
222 set (disp);
223
224#if XFT
225 XVisualInfo vinfo;
226
227 if (XMatchVisualInfo (xdisp, display->screen, bitdepth, TrueColor, &vinfo))
228 {
229 depth = bitdepth;
230 visual = vinfo.visual;
231 cmap = XCreateColormap (xdisp, disp->root, visual, AllocNone);
232 }
233#endif
234}
235
236void
237rxvt_screen::clear ()
238{
239 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (xdisp, display->screen)))
240 XFreeColormap (xdisp, cmap);
241}
135 242
136///////////////////////////////////////////////////////////////////////////// 243/////////////////////////////////////////////////////////////////////////////
137 244
138rxvt_display::rxvt_display (const char *id) 245rxvt_display::rxvt_display (const char *id)
139: refcounted (id) 246: refcounted (id)
140, x_ev (this, &rxvt_display::x_cb) 247, x_ev (this, &rxvt_display::x_cb)
141, selection_owner (0) 248, selection_owner (0)
142{ 249{
143} 250}
144 251
252XrmDatabase
253rxvt_display::get_resources (bool refresh)
254{
255 char *homedir = (char *)getenv ("HOME");
256 char fname[1024];
257
258 /*
259 * get resources using the X library function
260 */
261 char *displayResource, *xe;
262 XrmDatabase rdb1, database = 0;
263
264 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20
265
266 // 6. System wide per application default file.
267
268 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */
269 if ((xe = (char *)getenv ("XAPPLRESDIR")))
270 {
271 snprintf (fname, sizeof (fname), "%s/%s", xe, RESCLASS);
272
273 if ((rdb1 = XrmGetFileDatabase (fname)))
274 XrmMergeDatabases (rdb1, &database);
275 }
276
277 // 5. User's per application default file.
278 // none
279
280 // 4. User's defaults file.
281 /* Get any Xserver defaults */
282 if (refresh)
283 {
284 // fucking xlib keeps a copy of the rm string
285 Atom actual_type;
286 int actual_format;
287 unsigned long nitems, nremaining;
288 char *val = 0;
289
290#if XLIB_ILLEGAL_ACCESS
291 if (display->xdefaults)
292 XFree (display->xdefaults);
293#endif
294
295 if (XGetWindowProperty (display, root, XA_RESOURCE_MANAGER,
296 0L, 100000000L, False,
297 XA_STRING, &actual_type, &actual_format,
298 &nitems, &nremaining,
299 (unsigned char **)&val) == Success
300 && actual_type == XA_STRING
301 && actual_format == 8)
302 displayResource = val;
303 else
304 {
305 displayResource = 0;
306 if (val)
307 XFree(val);
308 }
309
310#if XLIB_ILLEGAL_ACCESS
311 display->xdefaults = displayResource;
312#endif
313 }
314 else
315 displayResource = XResourceManagerString (display);
316
317 if (displayResource)
318 {
319 if ((rdb1 = XrmGetStringDatabase (displayResource)))
320 XrmMergeDatabases (rdb1, &database);
321 }
322 else if (homedir)
323 {
324 snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir);
325
326 if ((rdb1 = XrmGetFileDatabase (fname)))
327 XrmMergeDatabases (rdb1, &database);
328 }
329
330#if !XLIB_ILLEGAL_ACCESS
331 if (refresh && displayResource)
332 XFree (displayResource);
333#endif
334
335 /* Get screen specific resources */
336 displayResource = XScreenResourceString (ScreenOfDisplay (display, screen));
337
338 if (displayResource)
339 {
340 if ((rdb1 = XrmGetStringDatabase (displayResource)))
341 /* Merge with screen-independent resources */
342 XrmMergeDatabases (rdb1, &database);
343
344 XFree (displayResource);
345 }
346
347 // 3. User's per host defaults file
348 /* Add in XENVIRONMENT file */
349 if ((xe = (char *)getenv ("XENVIRONMENT"))
350 && (rdb1 = XrmGetFileDatabase (xe)))
351 XrmMergeDatabases (rdb1, &database);
352 else if (homedir)
353 {
354 struct utsname un;
355
356 if (!uname (&un))
357 {
358 snprintf (fname, sizeof (fname), "%s/.Xdefaults-%s", homedir, un.nodename);
359
360 if ((rdb1 = XrmGetFileDatabase (fname)))
361 XrmMergeDatabases (rdb1, &database);
362 }
363 }
364
365 return database;
366}
367
145bool rxvt_display::init () 368bool rxvt_display::ref_init ()
146{ 369{
370#ifdef LOCAL_X_IS_UNIX
371 if (id[0] == ':')
372 {
373 val = rxvt_malloc (5 + strlen (id) + 1);
374 strcpy (val, "unix/");
375 strcat (val, id);
376 display = XOpenDisplay (val);
377 free (val);
378 }
379 else
380#endif
381 display = 0;
382
383 if (!display)
147 display = XOpenDisplay (id); 384 display = XOpenDisplay (id);
148 385
149 if (!display) 386 if (!display)
150 return false; 387 return false;
151 388
152 screen = DefaultScreen (display); 389 screen = DefaultScreen (display);
153 root = DefaultRootWindow (display); 390 root = DefaultRootWindow (display);
154 visual = DefaultVisual (display, screen); 391
155 cmap = DefaultColormap (display, screen); 392 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
156 depth = DefaultDepth (display, screen); 393 XInternAtoms (display, (char **)xa_names, NUM_XA, False, xa);
394
395 XrmSetDatabase (display, get_resources (false));
396
397#ifdef POINTER_BLANK
398 XColor blackcolour;
399 blackcolour.red = 0;
400 blackcolour.green = 0;
401 blackcolour.blue = 0;
402 Font f = XLoadFont (display, "fixed");
403 blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ',
404 &blackcolour, &blackcolour);
405 XUnloadFont (display, f);
406#endif
157 407
158 int fd = XConnectionNumber (display); 408 int fd = XConnectionNumber (display);
159 409
160#ifndef NO_SLOW_LINK_SUPPORT 410#ifndef NO_SLOW_LINK_SUPPORT
161 // try to detetc wether we have a local connection. 411 // try to detect wether we have a local connection.
162 // assume unix domains socket == local, everything else not 412 // assume unix domains socket == local, everything else not
163 // TODO: might want to check for inet/127.0.0.1 413 // TODO: might want to check for inet/127.0.0.1
164 is_local = 0; 414 is_local = 0;
165 sockaddr_un sa; 415 sockaddr_un sa;
166 socklen_t sl = sizeof (sa); 416 socklen_t sl = sizeof (sa);
167 417
168 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 418 if (!getsockname (fd, (sockaddr *)&sa, &sl))
169 is_local = sa.sun_family == AF_LOCAL; 419 is_local = sa.sun_family == AF_LOCAL;
170#endif 420#endif
171 421
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); 422 x_ev.start (fd, EVENT_READ);
192 fcntl (fd, F_SETFD, FD_CLOEXEC); 423 fcntl (fd, F_SETFD, FD_CLOEXEC);
193 424
194 XSelectInput (display, root, PropertyChangeMask); 425 XSelectInput (display, root, PropertyChangeMask);
426
427 flush ();
428
429 return true;
430}
431
432void
433rxvt_display::ref_next ()
434{
435 // TODO: somehow check wether the database files/resources changed
436 // before affording re-loading/parsing
437 XrmDestroyDatabase (XrmGetDatabase (display));
438 XrmSetDatabase (display, get_resources (true));
439}
440
441rxvt_display::~rxvt_display ()
442{
443 if (!display)
444 return;
445
446#ifdef POINTER_BLANK
447 XFreeCursor (display, blank_cursor);
448#endif
449 x_ev.stop ();
195#ifdef USE_XIM 450#ifdef USE_XIM
196 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0); 451 xims.clear ();
197#endif 452#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); 453 XCloseDisplay (display);
210} 454}
211 455
212#ifdef USE_XIM 456#ifdef USE_XIM
213void rxvt_display::im_change_cb () 457void rxvt_display::im_change_cb ()
214{ 458{
215 for (im_watcher **i = imw.begin (); i != imw.end (); ++i) 459 for (im_watcher **i = imw.begin (); i != imw.end (); ++i)
216 (*i)->call (); 460 (*i)->call ();
217} 461}
462
463void rxvt_display::im_change_check ()
464{
465 // try to only call im_change_cb when a new input method
466 // registers, as xlib crashes due to a race otherwise.
467 Atom actual_type, *atoms;
468 int actual_format;
469 unsigned long nitems, bytes_after;
470
471 if (XGetWindowProperty (display, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
472 False, XA_ATOM, &actual_type, &actual_format,
473 &nitems, &bytes_after, (unsigned char **)&atoms)
474 != Success )
475 return;
476
477 if (actual_type == XA_ATOM && actual_format == 32)
478 for (int i = 0; i < nitems; i++)
479 if (XGetSelectionOwner (display, atoms[i]))
480 {
481 im_change_cb ();
482 break;
483 }
484
485 XFree (atoms);
486}
218#endif 487#endif
219 488
220void rxvt_display::x_cb (io_watcher &w, short revents) 489void rxvt_display::x_cb (io_watcher &w, short revents)
221{ 490{
222 do 491 do
223 { 492 {
224 XEvent xev; 493 XEvent xev;
225 XNextEvent (display, &xev); 494 XNextEvent (display, &xev);
226 495
227 //printf ("T %d w %lx\n", xev.type, xev.xany.window);//D
228
229#ifdef USE_XIM 496#ifdef USE_XIM
230 if (xev.type == PropertyNotify 497 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 { 498 {
499 if (xev.type == PropertyNotify
500 && xev.xany.window == root
501 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
502 im_change_check ();
503#endif
504 for (int i = xw.size (); i--; )
505 {
238 if (!xw[i]) 506 if (!xw[i])
239 xw.erase_unordered (i); 507 xw.erase_unordered (i);
240 else if (xw[i]->window == xev.xany.window) 508 else if (xw[i]->window == xev.xany.window)
241 xw[i]->call (xev); 509 xw[i]->call (xev);
510 }
511#ifdef USE_XIM
242 } 512 }
513#endif
243 } 514 }
244 while (XPending (display)); 515 while (XEventsQueued (display, QueuedAlready));
245 516
246 flush (); 517 XFlush (display);
247} 518}
248 519
249void rxvt_display::flush () 520void rxvt_display::flush ()
250{ 521{
251 for (;;) 522 if (XEventsQueued (display, QueuedAlready))
252 { 523 x_cb (x_ev, EVENT_READ);
253 if (!XPending (display))
254 break;
255 524
256 x_cb (x_ev, 0); 525 XFlush (display);
257 }
258} 526}
259 527
260void rxvt_display::reg (xevent_watcher *w) 528void rxvt_display::reg (xevent_watcher *w)
261{ 529{
262 xw.push_back (w); 530 xw.push_back (w);
… …
276 544
277 selection_owner = owner; 545 selection_owner = owner;
278} 546}
279 547
280#ifdef USE_XIM 548#ifdef USE_XIM
549
281void rxvt_display::reg (im_watcher *w) 550void rxvt_display::reg (im_watcher *w)
282{ 551{
283 imw.push_back (w); 552 imw.push_back (w);
284} 553}
285 554
… …
309 return xim; 578 return xim;
310} 579}
311 580
312void rxvt_display::put_xim (rxvt_xim *xim) 581void rxvt_display::put_xim (rxvt_xim *xim)
313{ 582{
583# if XLIB_IS_RACEFREE
314 xims.put (xim); 584 xims.put (xim);
585# endif
315} 586}
587
316#endif 588#endif
317 589
318Atom rxvt_display::atom (const char *name) 590Atom rxvt_display::atom (const char *name)
319{ 591{
320 return XInternAtom (display, name, False); 592 return XInternAtom (display, name, False);
… …
324 596
325template class refcache<rxvt_display>; 597template class refcache<rxvt_display>;
326refcache<rxvt_display> displays; 598refcache<rxvt_display> displays;
327 599
328///////////////////////////////////////////////////////////////////////////// 600/////////////////////////////////////////////////////////////////////////////
329 601
330bool 602bool
331rxvt_color::set (rxvt_display *display, Pixel p) 603rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
332{ 604{
333#if XFT 605#if XFT
334 XColor xc; 606 XRenderPictFormat *format;
335 607
336 xc.pixel = p; 608 // FUCKING Xft gets it wrong, of course, so work around it.
337 if (!XQueryColor (display->display, display->cmap, &xc)) 609 // Transparency users should eat shit and die, and then
338 return false; 610 // XRenderQueryPictIndexValues themselves plenty.
611 if ((screen->visual->c_class == TrueColor)
612 && (format = XRenderFindVisualFormat (screen->xdisp, screen->visual)))
613 {
614 // the fun lies in doing everything manually...
615 c.color.red = color.r;
616 c.color.green = color.g;
617 c.color.blue = color.b;
618 c.color.alpha = color.a;
339 619
620 c.pixel = ((color.r * format->direct.redMask / rgba::MAX_CC) << format->direct.red )
621 | ((color.g * format->direct.greenMask / rgba::MAX_CC) << format->direct.green)
622 | ((color.b * format->direct.blueMask / rgba::MAX_CC) << format->direct.blue )
623 | ((color.a * format->direct.alphaMask / rgba::MAX_CC) << format->direct.alpha);
624
625 return true;
626 }
627 else
628 {
340 XRenderColor d; 629 XRenderColor d;
341 630
342 d.red = xc.red; 631 d.red = color.r;
343 d.green = xc.green; 632 d.green = color.g;
344 d.blue = xc.blue; 633 d.blue = color.b;
345 d.alpha = 0xffff; 634 d.alpha = color.a;
346 635
347 return 636 return XftColorAllocValue (screen->xdisp, screen->visual, screen->cmap, &d, &c);
348 XftColorAllocValue (display->display, 637 }
349 display->visual,
350 display->cmap,
351 &d, &c);
352#else 638#else
353 this->p = p; 639 c.red = color.r;
354#endif 640 c.green = color.g;
641 c.blue = color.b;
355 642
643 if (screen->visual->c_class == TrueColor)
644 {
645 c.pixel = (color.r * (screen->visual->red_mask >> ctz (screen->visual->red_mask ))
646 / rgba::MAX_CC) << ctz (screen->visual->red_mask )
647 | (color.g * (screen->visual->green_mask >> ctz (screen->visual->green_mask))
648 / rgba::MAX_CC) << ctz (screen->visual->green_mask)
649 | (color.b * (screen->visual->blue_mask >> ctz (screen->visual->blue_mask ))
650 / rgba::MAX_CC) << ctz (screen->visual->blue_mask );
651
652 return true;
653 }
654 else if (XAllocColor (screen->xdisp, screen->cmap, &c))
356 return true; 655 return true;
656 else
657 c.pixel = (color.r + color.g + color.b) > 128*3
658 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->xdisp))
659 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->xdisp));
660#endif
661
662 return false;
357} 663}
358 664
359bool 665bool
360rxvt_color::set (rxvt_display *display, const char *name) 666rxvt_color::set (rxvt_screen *screen, const char *name)
361{ 667{
362 XColor xc; 668 rgba c;
669 char eos;
670 int skip;
363 671
364 if (XParseColor (display->display, display->cmap, name, &xc)) 672 // parse the nonstandard "[alphapercent]" prefix
365 return set (display, xc.red, xc.green, xc.blue); 673 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
674 {
675 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
676 name += skip;
677 }
678 else
679 c.a = rgba::MAX_CC;
366 680
367 return false; 681 // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format
682 if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos))
683 {
684 XColor xc, xc_exact;
685
686 if (XParseColor (screen->xdisp, screen->cmap, name, &xc))
687 {
688 c.r = xc.red;
689 c.g = xc.green;
690 c.b = xc.blue;
691 }
692 else
693 {
694 c.r = 0xffff;
695 c.g = 0x6969;
696 c.b = 0xb4b4;
697
698 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
699 }
700 }
701
702 return set (screen, c);
368} 703}
369 704
370bool 705bool
371rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) 706rxvt_color::set (rxvt_screen *screen, const rgba &color)
372{ 707{
373 XColor xc; 708 bool got = alloc (screen, color);
374 709
710#if !ENABLE_MINIMAL
711 int cmap_size = screen->visual->map_entries;
712
713 if (!got
714 && screen->visual->c_class == PseudoColor
715 && cmap_size < 4096)
716 {
717 XColor *colors = new XColor [screen->visual->map_entries];
718
719 for (int i = 0; i < cmap_size; i++)
720 colors [i].pixel = i;
721
722 // many kilobytes transfer per colour, but pseudocolor isn't worth
723 // many extra optimisations.
724 XQueryColors (screen->xdisp, screen->cmap, colors, cmap_size);
725
726 int diff = 0x7fffffffUL;
727 XColor *best = colors;
728
729 for (int i = 0; i < cmap_size; i++)
730 {
731 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
732 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
733 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
734
735 if (d < diff)
736 {
737 diff = d;
738 best = colors + i;
739 }
740 }
741
742 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
743 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
744
745 got = alloc (screen, rgba (best->red, best->green, best->blue));
746
747 delete colors;
748 }
749#endif
750
751 return got;
752}
753
754void
755rxvt_color::get (rgba &color)
756{
757#if XFT
758 color.r = c.color.red;
759 color.g = c.color.green;
760 color.b = c.color.blue;
761 color.a = c.color.alpha;
762#else
763 color.r = c.red;
764 color.g = c.green;
765 color.b = c.blue;
766 color.a = rgba::MAX_CC;
767#endif
768}
769
770void
771rxvt_color::get (XColor &color)
772{
773 rgba c;
774 get (c);
775
375 xc.red = cr; 776 color.red = c.r;
376 xc.green = cg; 777 color.green = c.g;
377 xc.blue = cb; 778 color.blue = c.b;
378 xc.flags = DoRed | DoGreen | DoBlue; 779 color.pixel = (Pixel)*this;
379
380 if (XAllocColor (display->display, display->cmap, &xc))
381 return set (display, xc.pixel);
382
383 return false;
384} 780}
385 781
386void 782void
387rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) 783rxvt_color::free (rxvt_screen *screen)
388{ 784{
389#if XFT 785#if XFT
390 cr = c.color.red; 786 XftColorFree (screen->xdisp, screen->visual, screen->cmap, &c);
391 cg = c.color.green;
392 cb = c.color.blue;
393#else 787#else
394 XColor c; 788 XFreeColors (screen->xdisp, 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 789#endif
403} 790}
404 791
405void 792void
406rxvt_color::free (rxvt_display *display) 793rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
407{ 794{
408#if XFT 795 rgba c;
409 XftColorFree (display->display, display->visual, display->cmap, &c); 796 get (c);
410#else
411 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
412#endif
413}
414 797
415rxvt_color 798 result.set (
416rxvt_color::fade (rxvt_display *display, int percent) 799 screen,
417{ 800 rgba (
418 unsigned short cr, cg, cb; 801 lerp (c.r, to.r, percent),
419 rxvt_color faded; 802 lerp (c.g, to.g, percent),
420 803 lerp (c.b, to.b, percent),
421 get (display, cr, cg, cb); 804 lerp (c.a, to.a, percent)
422 faded.set (display, 805 )
423 cr * percent / 100, 806 );
424 cg * percent / 100,
425 cb * percent / 100);
426
427 return faded;
428} 807}
429 808

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