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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 1.45 by root, Wed Feb 1 01:58:47 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->display, NULL, NULL, NULL);
116 183
… …
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 ()
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 database, rdb1;
263
264 database = NULL;
265
266 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20
267
268 // 6. System wide per application default file.
269
270 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */
271 if ((xe = (char *)getenv ("XAPPLRESDIR")))
272 {
273 snprintf (fname, sizeof (fname), "%s/%s", xe, RESCLASS);
274
275 if ((rdb1 = XrmGetFileDatabase (fname)))
276 XrmMergeDatabases (rdb1, &database);
277 }
278
279 // 5. User's per application default file.
280 // none
281
282 // 4. User's defaults file.
283 /* Get any Xserver defaults */
284 displayResource = XResourceManagerString (display);
285
286 if (displayResource != NULL)
287 {
288 if ((rdb1 = XrmGetStringDatabase (displayResource)))
289 XrmMergeDatabases (rdb1, &database);
290 }
291 else if (homedir)
292 {
293 snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir);
294
295 if ((rdb1 = XrmGetFileDatabase (fname)))
296 XrmMergeDatabases (rdb1, &database);
297 }
298
299 /* Get screen specific resources */
300 displayResource = XScreenResourceString (ScreenOfDisplay (display, screen));
301
302 if (displayResource != NULL)
303 {
304 if ((rdb1 = XrmGetStringDatabase (displayResource)))
305 /* Merge with screen-independent resources */
306 XrmMergeDatabases (rdb1, &database);
307
308 XFree (displayResource);
309 }
310
311 // 3. User's per host defaults file
312 /* Add in XENVIRONMENT file */
313 if ((xe = (char *)getenv ("XENVIRONMENT"))
314 && (rdb1 = XrmGetFileDatabase (xe)))
315 XrmMergeDatabases (rdb1, &database);
316 else if (homedir)
317 {
318 struct utsname un;
319
320 if (!uname (&un))
321 {
322 snprintf (fname, sizeof (fname), "%s/.Xdefaults-%s", homedir, un.nodename);
323
324 if ((rdb1 = XrmGetFileDatabase (fname)))
325 XrmMergeDatabases (rdb1, &database);
326 }
327 }
328
329 return database;
330}
331
145bool rxvt_display::init () 332bool rxvt_display::ref_init ()
146{ 333{
334#ifdef LOCAL_X_IS_UNIX
335 if (id[0] == ':')
336 {
337 val = rxvt_malloc (5 + strlen (id) + 1);
338 strcpy (val, "unix/");
339 strcat (val, id);
340 display = XOpenDisplay (val);
341 free (val);
342 }
343 else
344#endif
345 display = 0;
346
347 if (!display)
147 display = XOpenDisplay (id); 348 display = XOpenDisplay (id);
148 349
149 if (!display) 350 if (!display)
150 return false; 351 return false;
151 352
152 screen = DefaultScreen (display); 353 screen = DefaultScreen (display);
153 root = DefaultRootWindow (display); 354 root = DefaultRootWindow (display);
154 visual = DefaultVisual (display, screen); 355
155 cmap = DefaultColormap (display, screen); 356 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
156 depth = DefaultDepth (display, screen); 357 XInternAtoms (display, (char **)xa_names, NUM_XA, False, xa);
358
359 XrmSetDatabase (display, get_resources ());
360
361#ifdef POINTER_BLANK
362 XColor blackcolour;
363 blackcolour.red = 0;
364 blackcolour.green = 0;
365 blackcolour.blue = 0;
366 Font f = XLoadFont (display, "fixed");
367 blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ',
368 &blackcolour, &blackcolour);
369 XUnloadFont (display, f);
370#endif
157 371
158 int fd = XConnectionNumber (display); 372 int fd = XConnectionNumber (display);
159 373
160#ifndef NO_SLOW_LINK_SUPPORT 374#ifndef NO_SLOW_LINK_SUPPORT
161 // try to detetc wether we have a local connection. 375 // try to detect wether we have a local connection.
162 // assume unix domains socket == local, everything else not 376 // assume unix domains socket == local, everything else not
163 // TODO: might want to check for inet/127.0.0.1 377 // TODO: might want to check for inet/127.0.0.1
164 is_local = 0; 378 is_local = 0;
165 sockaddr_un sa; 379 sockaddr_un sa;
166 socklen_t sl = sizeof (sa); 380 socklen_t sl = sizeof (sa);
167 381
168 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 382 if (!getsockname (fd, (sockaddr *)&sa, &sl))
169 is_local = sa.sun_family == AF_LOCAL; 383 is_local = sa.sun_family == AF_LOCAL;
170#endif 384#endif
171 385
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); 386 x_ev.start (fd, EVENT_READ);
192 fcntl (fd, F_SETFD, FD_CLOEXEC); 387 fcntl (fd, F_SETFD, FD_CLOEXEC);
193 388
194 XSelectInput (display, root, PropertyChangeMask); 389 XSelectInput (display, root, PropertyChangeMask);
390
391 flush ();
392
393 return true;
394}
395
396void
397rxvt_display::ref_next ()
398{
399 // TODO: somehow check wether the database files/resources changed
400 // before re-loading/parsing
401 XrmDestroyDatabase (XrmGetDatabase (display));
402 XrmSetDatabase (display, get_resources ());
403}
404
405rxvt_display::~rxvt_display ()
406{
407 if (!display)
408 return;
409
410#ifdef POINTER_BLANK
411 XFreeCursor (display, blank_cursor);
412#endif
413 x_ev.stop ();
195#ifdef USE_XIM 414#ifdef USE_XIM
196 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0); 415 xims.clear ();
197#endif 416#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); 417 XCloseDisplay (display);
210} 418}
211 419
212#ifdef USE_XIM 420#ifdef USE_XIM
213void rxvt_display::im_change_cb () 421void rxvt_display::im_change_cb ()
214{ 422{
215 for (im_watcher **i = imw.begin (); i != imw.end (); ++i) 423 for (im_watcher **i = imw.begin (); i != imw.end (); ++i)
216 (*i)->call (); 424 (*i)->call ();
217} 425}
426
427void rxvt_display::im_change_check ()
428{
429 // try to only call im_change_cb when a new input method
430 // registers, as xlib crashes due to a race otherwise.
431 Atom actual_type, *atoms;
432 int actual_format;
433 unsigned long nitems, bytes_after;
434
435 if (XGetWindowProperty (display, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
436 False, XA_ATOM, &actual_type, &actual_format,
437 &nitems, &bytes_after, (unsigned char **)&atoms)
438 != Success )
439 return;
440
441 if (actual_type == XA_ATOM && actual_format == 32)
442 for (int i = 0; i < nitems; i++)
443 if (XGetSelectionOwner (display, atoms[i]))
444 {
445 im_change_cb ();
446 break;
447 }
448
449 XFree (atoms);
450}
218#endif 451#endif
219 452
220void rxvt_display::x_cb (io_watcher &w, short revents) 453void rxvt_display::x_cb (io_watcher &w, short revents)
221{ 454{
222 do 455 do
223 { 456 {
224 XEvent xev; 457 XEvent xev;
225 XNextEvent (display, &xev); 458 XNextEvent (display, &xev);
226 459
227 //printf ("T %d w %lx\n", xev.type, xev.xany.window);//D
228
229#ifdef USE_XIM 460#ifdef USE_XIM
230 if (xev.type == PropertyNotify 461 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 { 462 {
463 if (xev.type == PropertyNotify
464 && xev.xany.window == root
465 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
466 im_change_check ();
467#endif
468 for (int i = xw.size (); i--; )
469 {
238 if (!xw[i]) 470 if (!xw[i])
239 xw.erase_unordered (i); 471 xw.erase_unordered (i);
240 else if (xw[i]->window == xev.xany.window) 472 else if (xw[i]->window == xev.xany.window)
241 xw[i]->call (xev); 473 xw[i]->call (xev);
474 }
475#ifdef USE_XIM
242 } 476 }
477#endif
243 } 478 }
244 while (XPending (display)); 479 while (XEventsQueued (display, QueuedAlready));
245 480
246 flush (); 481 XFlush (display);
247} 482}
248 483
249void rxvt_display::flush () 484void rxvt_display::flush ()
250{ 485{
251 for (;;) 486 if (XEventsQueued (display, QueuedAlready))
252 { 487 x_cb (x_ev, EVENT_READ);
253 if (!XPending (display))
254 break;
255 488
256 x_cb (x_ev, 0); 489 XFlush (display);
257 }
258} 490}
259 491
260void rxvt_display::reg (xevent_watcher *w) 492void rxvt_display::reg (xevent_watcher *w)
261{ 493{
262 xw.push_back (w); 494 xw.push_back (w);
… …
309 return xim; 541 return xim;
310} 542}
311 543
312void rxvt_display::put_xim (rxvt_xim *xim) 544void rxvt_display::put_xim (rxvt_xim *xim)
313{ 545{
546#if XLIB_IS_RACEFREE
314 xims.put (xim); 547 xims.put (xim);
548#endif
315} 549}
316#endif 550#endif
317 551
318Atom rxvt_display::atom (const char *name) 552Atom rxvt_display::atom (const char *name)
319{ 553{
… …
324 558
325template class refcache<rxvt_display>; 559template class refcache<rxvt_display>;
326refcache<rxvt_display> displays; 560refcache<rxvt_display> displays;
327 561
328///////////////////////////////////////////////////////////////////////////// 562/////////////////////////////////////////////////////////////////////////////
329 563
330bool 564bool
331rxvt_color::set (rxvt_display *display, Pixel p) 565rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
332{ 566{
333#if XFT 567#if XFT
334 XColor xc; 568 XRenderPictFormat *format;
335 569
336 xc.pixel = p; 570 // FUCKING Xft gets it wrong, of course, so work around it
337 if (!XQueryColor (display->display, display->cmap, &xc)) 571 // transparency users should eat shit and die, and then
338 return false; 572 // XRenderQueryPictIndexValues themselves plenty.
573 if ((screen->visual->c_class == TrueColor || screen->visual->c_class == DirectColor)
574 && (format = XRenderFindVisualFormat (screen->xdisp, screen->visual)))
575 {
576 // the fun lies in doing everything manually...
577 c.color.red = color.r;
578 c.color.green = color.g;
579 c.color.blue = color.b;
580 c.color.alpha = color.a;
339 581
582 c.pixel = ((color.r * format->direct.redMask / rgba::MAX_CC) << format->direct.red )
583 | ((color.g * format->direct.greenMask / rgba::MAX_CC) << format->direct.green)
584 | ((color.b * format->direct.blueMask / rgba::MAX_CC) << format->direct.blue )
585 | ((color.a * format->direct.alphaMask / rgba::MAX_CC) << format->direct.alpha);
586
587 return true;
588 }
589 else
590 {
340 XRenderColor d; 591 XRenderColor d;
341 592
342 d.red = xc.red; 593 d.red = color.r;
343 d.green = xc.green; 594 d.green = color.g;
344 d.blue = xc.blue; 595 d.blue = color.b;
345 d.alpha = 0xffff; 596 d.alpha = color.a;
346 597
347 return 598 return XftColorAllocValue (screen->xdisp, screen->visual, screen->cmap, &d, &c);
348 XftColorAllocValue (display->display, 599 }
349 display->visual,
350 display->cmap,
351 &d, &c);
352#else 600#else
353 this->p = p; 601 if (screen->visual->c_class == TrueColor || screen->visual->c_class == DirectColor)
354#endif 602 {
603 c.red = color.g;
604 c.green = color.g;
605 c.blue = color.g;
606 c.pixel = (color.r * (screen->visual->red_mask >> ctz (screen->visual->red_mask ))
607 / rgba::MAX_CC) << ctz (screen->visual->red_mask )
608 | (color.g * (screen->visual->green_mask >> ctz (screen->visual->green_mask))
609 / rgba::MAX_CC) << ctz (screen->visual->green_mask)
610 | (color.b * (screen->visual->blue_mask >> ctz (screen->visual->blue_mask ))
611 / rgba::MAX_CC) << ctz (screen->visual->blue_mask );
355 612
613 return true;
614 }
615 else
616 {
617 c.red = color.r;
618 c.green = color.g;
619 c.blue = color.b;
620
621 if (XAllocColor (screen->xdisp, screen->cmap, &c))
356 return true; 622 return true;
623 else
624 c.pixel = (color.r + color.g + color.b) > 128*3
625 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->xdisp))
626 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->xdisp));
627 }
628#endif
629
630 return false;
357} 631}
358 632
359bool 633bool
360rxvt_color::set (rxvt_display *display, const char *name) 634rxvt_color::set (rxvt_screen *screen, const char *name)
361{ 635{
362 XColor xc; 636 rgba c;
637 char eos;
638 int skip;
363 639
364 if (XParseColor (display->display, display->cmap, name, &xc)) 640 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
365 return set (display, xc.red, xc.green, xc.blue); 641 {
642 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
643 name += skip;
644 }
645 else
646 c.a = rgba::MAX_CC;
366 647
367 return false; 648 // parse the non-standard rgba format
649 if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%hx/%hx/%hx/%hx%c", &c.r, &c.g, &c.b, &c.a, &eos))
650 {
651 XColor xc, xc_exact;
652
653 if (XParseColor (screen->xdisp, screen->cmap, name, &xc))
654 {
655 c.r = xc.red;
656 c.g = xc.green;
657 c.b = xc.blue;
658 }
659 else
660 {
661 c.r = 0xffff;
662 c.g = 0x6969;
663 c.b = 0xb4b4;
664
665 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
666 }
667 }
668
669 return set (screen, c);
368} 670}
369 671
370bool 672bool
371rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) 673rxvt_color::set (rxvt_screen *screen, const rgba &color)
372{ 674{
373 XColor xc; 675 bool got = alloc (screen, color);
374 676
375 xc.red = cr; 677#if !ENABLE_MINIMAL
376 xc.green = cg; 678 int cmap_size = screen->visual->map_entries;
377 xc.blue = cb;
378 xc.flags = DoRed | DoGreen | DoBlue;
379 679
380 if (XAllocColor (display->display, display->cmap, &xc)) 680 if (!got
381 return set (display, xc.pixel); 681 && screen->visual->c_class == PseudoColor
682 && cmap_size < 4096)
683 {
684 XColor *colors = new XColor [screen->visual->map_entries];
382 685
383 return false; 686 for (int i = 0; i < cmap_size; i++)
687 colors [i].pixel = i;
688
689 // many kilobytes transfer per colour, but pseudocolor isn't worth
690 // many extra optimisations.
691 XQueryColors (screen->xdisp, screen->cmap, colors, cmap_size);
692
693 int diff = 0x7fffffffUL;
694 XColor *best = colors;
695
696 for (int i = 0; i < cmap_size; i++)
697 {
698 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
699 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
700 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
701
702 if (d < diff)
703 {
704 diff = d;
705 best = colors + i;
706 }
707 }
708
709 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
710 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
711
712 got = alloc (screen, rgba (best->red, best->green, best->blue));
713
714 delete colors;
715 }
716#endif
717
718 return got;
719}
720
721void
722rxvt_color::get (rgba &color)
723{
724#if XFT
725 color.r = c.color.red;
726 color.g = c.color.green;
727 color.b = c.color.blue;
728 color.a = c.color.alpha;
729#else
730 color.r = c.red;
731 color.g = c.green;
732 color.b = c.blue;
733 color.a = rgba::MAX_CC;
734#endif
384} 735}
385 736
386void 737void
387rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) 738rxvt_color::free (rxvt_screen *screen)
388{ 739{
389#if XFT 740#if XFT
390 cr = c.color.red; 741 XftColorFree (screen->xdisp, screen->visual, screen->cmap, &c);
391 cg = c.color.green;
392 cb = c.color.blue;
393#else 742#else
394 XColor c; 743 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 744#endif
403} 745}
404 746
405void 747void
406rxvt_color::free (rxvt_display *display) 748rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
407{ 749{
408#if XFT 750 rgba c;
409 XftColorFree (display->display, display->visual, display->cmap, &c); 751 get (c);
410#else
411 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
412#endif
413}
414 752
415rxvt_color 753 result.set (
416rxvt_color::fade (rxvt_display *display, int percent) 754 screen,
417{ 755 rgba (
418 unsigned short cr, cg, cb; 756 lerp (c.r, to.r, percent),
419 rxvt_color faded; 757 lerp (c.g, to.g, percent),
420 758 lerp (c.b, to.b, percent),
421 get (display, cr, cg, cb); 759 lerp (c.a, to.a, percent)
422 faded.set (display, 760 )
423 cr * percent / 100, 761 );
424 cg * percent / 100,
425 cb * percent / 100);
426
427 return faded;
428} 762}
429 763

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