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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 1.69 by root, Sat Jun 30 18:10:41 2007 UTC

1/*--------------------------------*-C-*---------------------------------* 1/*----------------------------------------------------------------------*
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) 2003-2006 Marc Lehmann <pcg@goof.com>
7 * 7 *
8 * This program is free software; you can redistribute it and/or modify 8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by 9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version. 11 * (at your option) any later version.
… …
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 ENABLE_TRANSPARENCY
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::select_visual (int bitdepth)
268{
269#if XFT
270 XVisualInfo vinfo;
271
272 if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo))
273 {
274 depth = bitdepth;
275 visual = vinfo.visual;
276 cmap = XCreateColormap (dpy, display->root, visual, AllocNone);
277 }
278#endif
279}
280
281void
282rxvt_screen::clear ()
283{
284#if XFT
285 if (scratch_area)
286 {
287 XFreePixmap (dpy, scratch_area->drawable);
288 delete scratch_area;
289 }
290#endif
291
292 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (dpy, display->screen)))
293 XFreeColormap (dpy, cmap);
294}
135 295
136///////////////////////////////////////////////////////////////////////////// 296/////////////////////////////////////////////////////////////////////////////
137 297
138rxvt_display::rxvt_display (const char *id) 298rxvt_display::rxvt_display (const char *id)
139: refcounted (id) 299: refcounted (id)
140, x_ev (this, &rxvt_display::x_cb) 300, x_ev (this, &rxvt_display::x_cb)
141, selection_owner (0) 301, selection_owner (0)
142{ 302{
143} 303}
144 304
305XrmDatabase
306rxvt_display::get_resources (bool refresh)
307{
308 char *homedir = (char *)getenv ("HOME");
309 char fname[1024];
310
311 /*
312 * get resources using the X library function
313 */
314 char *displayResource, *xe;
315 XrmDatabase rdb1, database = 0;
316
317 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20
318 // as opposed to "standard practise", we always read in ~/.Xdefaults
319
320 // 6. System wide per application default file.
321
322 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */
323 if ((xe = (char *)getenv ("XAPPLRESDIR")))
324 {
325 snprintf (fname, sizeof (fname), "%s/%s", xe, RESCLASS);
326
327 if ((rdb1 = XrmGetFileDatabase (fname)))
328 XrmMergeDatabases (rdb1, &database);
329 }
330
331 // 5. User's per application default file.
332 // none
333
334 // 4. User's defaults file.
335 if (homedir)
336 {
337 snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir);
338
339 if ((rdb1 = XrmGetFileDatabase (fname)))
340 XrmMergeDatabases (rdb1, &database);
341 }
342
343 /* Get any Xserver defaults */
344 if (refresh)
345 {
346 // fucking xlib keeps a copy of the rm string
347 Atom actual_type;
348 int actual_format;
349 unsigned long nitems, nremaining;
350 char *val = 0;
351
352#if XLIB_ILLEGAL_ACCESS
353 if (dpy->xdefaults)
354 XFree (dpy->xdefaults);
355#endif
356
357 if (XGetWindowProperty (dpy, RootWindow (dpy, 0), XA_RESOURCE_MANAGER,
358 0L, 100000000L, False,
359 XA_STRING, &actual_type, &actual_format,
360 &nitems, &nremaining,
361 (unsigned char **)&val) == Success
362 && actual_type == XA_STRING
363 && actual_format == 8)
364 displayResource = val;
365 else
366 {
367 displayResource = 0;
368
369 if (val)
370 XFree(val);
371 }
372
373#if XLIB_ILLEGAL_ACCESS
374 dpy->xdefaults = displayResource;
375#endif
376 }
377 else
378 displayResource = XResourceManagerString (dpy);
379
380 if (displayResource)
381 {
382 if ((rdb1 = XrmGetStringDatabase (displayResource)))
383 XrmMergeDatabases (rdb1, &database);
384 }
385
386#if !XLIB_ILLEGAL_ACCESS
387 if (refresh && displayResource)
388 XFree (displayResource);
389#endif
390
391 /* Get screen specific resources */
392 displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen));
393
394 if (displayResource)
395 {
396 if ((rdb1 = XrmGetStringDatabase (displayResource)))
397 /* Merge with screen-independent resources */
398 XrmMergeDatabases (rdb1, &database);
399
400 XFree (displayResource);
401 }
402
403 // 3. User's per host defaults file
404 /* Add in XENVIRONMENT file */
405 if ((xe = (char *)getenv ("XENVIRONMENT"))
406 && (rdb1 = XrmGetFileDatabase (xe)))
407 XrmMergeDatabases (rdb1, &database);
408 else if (homedir)
409 {
410 struct utsname un;
411
412 if (!uname (&un))
413 {
414 snprintf (fname, sizeof (fname), "%s/.Xdefaults-%s", homedir, un.nodename);
415
416 if ((rdb1 = XrmGetFileDatabase (fname)))
417 XrmMergeDatabases (rdb1, &database);
418 }
419 }
420
421 return database;
422}
423
145bool rxvt_display::init () 424bool rxvt_display::ref_init ()
146{ 425{
426#ifdef LOCAL_X_IS_UNIX
427 if (id[0] == ':')
428 {
429 val = rxvt_malloc (5 + strlen (id) + 1);
430 strcpy (val, "unix/");
431 strcat (val, id);
432 dpy = XOpenDisplay (val);
433 free (val);
434 }
435 else
436#endif
437 dpy = 0;
438
439 if (!dpy)
147 display = XOpenDisplay (id); 440 dpy = XOpenDisplay (id);
148 441
149 if (!display) 442 if (!dpy)
150 return false; 443 return false;
151 444
152 screen = DefaultScreen (display); 445 screen = DefaultScreen (dpy);
153 root = DefaultRootWindow (display); 446 root = DefaultRootWindow (dpy);
154 visual = DefaultVisual (display, screen);
155 cmap = DefaultColormap (display, screen);
156 depth = DefaultDepth (display, screen);
157 447
448#ifdef HAVE_AFTERIMAGE
449 ::dpy = dpy; /* init global var from libAfter... */
450 asv = create_asvisual_for_id (dpy, screen, DefaultDepth (dpy,screen),
451 XVisualIDFromVisual (DefaultVisual (dpy, screen)), None, NULL);
452#endif
453
454 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
455 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
456
457 XrmSetDatabase (dpy, get_resources (false));
458
459#ifdef POINTER_BLANK
460 XColor blackcolour;
461 blackcolour.red = 0;
462 blackcolour.green = 0;
463 blackcolour.blue = 0;
464 Font f = XLoadFont (dpy, "fixed");
465 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
466 &blackcolour, &blackcolour);
467 XUnloadFont (dpy, f);
468#endif
469
158 int fd = XConnectionNumber (display); 470 int fd = XConnectionNumber (dpy);
159 471
160#ifndef NO_SLOW_LINK_SUPPORT
161 // try to detetc wether we have a local connection. 472 // try to detect wether we have a local connection.
162 // assume unix domains socket == local, everything else not 473 // assume unix domains socket == local, everything else not
163 // TODO: might want to check for inet/127.0.0.1 474 // TODO: might want to check for inet/127.0.0.1
164 is_local = 0; 475 is_local = 0;
165 sockaddr_un sa; 476 sockaddr_un sa;
166 socklen_t sl = sizeof (sa); 477 socklen_t sl = sizeof (sa);
167 478
168 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 479 if (!getsockname (fd, (sockaddr *)&sa, &sl))
169 is_local = sa.sun_family == AF_LOCAL; 480 is_local = sa.sun_family == AF_UNIX;
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
190 481
191 x_ev.start (fd, EVENT_READ); 482 x_ev.start (fd, EVENT_READ);
192 fcntl (fd, F_SETFD, FD_CLOEXEC); 483 fcntl (fd, F_SETFD, FD_CLOEXEC);
193 484
194 XSelectInput (display, root, PropertyChangeMask); 485 XSelectInput (dpy, root, PropertyChangeMask);
486
487 flush ();
488
489 return true;
490}
491
492void
493rxvt_display::ref_next ()
494{
495 // TODO: somehow check wether the database files/resources changed
496 // before affording re-loading/parsing
497 XrmDestroyDatabase (XrmGetDatabase (dpy));
498 XrmSetDatabase (dpy, get_resources (true));
499}
500
501rxvt_display::~rxvt_display ()
502{
503 if (!dpy)
504 return;
505
506#ifdef POINTER_BLANK
507 XFreeCursor (dpy, blank_cursor);
508#endif
509 x_ev.stop ();
195#ifdef USE_XIM 510#ifdef USE_XIM
196 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0); 511 xims.clear ();
197#endif 512#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); 513 XCloseDisplay (dpy);
210} 514}
211 515
212#ifdef USE_XIM 516#ifdef USE_XIM
213void rxvt_display::im_change_cb () 517void rxvt_display::im_change_cb ()
214{ 518{
215 for (im_watcher **i = imw.begin (); i != imw.end (); ++i) 519 for (im_watcher **i = imw.begin (); i != imw.end (); ++i)
216 (*i)->call (); 520 (*i)->call ();
217} 521}
522
523void rxvt_display::im_change_check ()
524{
525 // try to only call im_change_cb when a new input method
526 // registers, as xlib crashes due to a race otherwise.
527 Atom actual_type, *atoms;
528 int actual_format;
529 unsigned long nitems, bytes_after;
530
531 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
532 False, XA_ATOM, &actual_type, &actual_format,
533 &nitems, &bytes_after, (unsigned char **)&atoms)
534 != Success )
535 return;
536
537 if (actual_type == XA_ATOM && actual_format == 32)
538 for (int i = 0; i < nitems; i++)
539 if (XGetSelectionOwner (dpy, atoms[i]))
540 {
541 im_change_cb ();
542 break;
543 }
544
545 XFree (atoms);
546}
218#endif 547#endif
219 548
220void rxvt_display::x_cb (io_watcher &w, short revents) 549void rxvt_display::x_cb (io_watcher &w, short revents)
221{ 550{
222 do 551 do
223 { 552 {
224 XEvent xev; 553 XEvent xev;
225 XNextEvent (display, &xev); 554 XNextEvent (dpy, &xev);
226
227 //printf ("T %d w %lx\n", xev.type, xev.xany.window);//D
228 555
229#ifdef USE_XIM 556#ifdef USE_XIM
230 if (xev.type == PropertyNotify 557 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 { 558 {
559 if (xev.type == PropertyNotify
560 && xev.xany.window == root
561 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
562 im_change_check ();
563#endif
564 if (xev.type == MappingNotify)
565 XRefreshKeyboardMapping (&xev.xmapping);
566
567 for (int i = xw.size (); i--; )
568 {
238 if (!xw[i]) 569 if (!xw[i])
239 xw.erase_unordered (i); 570 xw.erase_unordered (i);
240 else if (xw[i]->window == xev.xany.window) 571 else if (xw[i]->window == xev.xany.window)
241 xw[i]->call (xev); 572 xw[i]->call (xev);
573 }
574#ifdef USE_XIM
242 } 575 }
576#endif
243 } 577 }
244 while (XPending (display)); 578 while (XEventsQueued (dpy, QueuedAlready));
245 579
246 flush (); 580 XFlush (dpy);
247} 581}
248 582
249void rxvt_display::flush () 583void rxvt_display::flush ()
250{ 584{
251 for (;;) 585 if (XEventsQueued (dpy, QueuedAlready))
252 { 586 x_cb (x_ev, EVENT_READ);
253 if (!XPending (display))
254 break;
255 587
256 x_cb (x_ev, 0); 588 XFlush (dpy);
257 }
258} 589}
259 590
260void rxvt_display::reg (xevent_watcher *w) 591void rxvt_display::reg (xevent_watcher *w)
261{ 592{
593 if (!w->active)
594 {
262 xw.push_back (w); 595 xw.push_back (w);
263 w->active = xw.size (); 596 w->active = xw.size ();
597 }
264} 598}
265 599
266void rxvt_display::unreg (xevent_watcher *w) 600void rxvt_display::unreg (xevent_watcher *w)
267{ 601{
268 if (w->active) 602 if (w->active)
603 {
269 xw[w->active - 1] = 0; 604 xw[w->active - 1] = 0;
605 w->active = 0;
606 }
270} 607}
271 608
272void rxvt_display::set_selection_owner (rxvt_term *owner) 609void rxvt_display::set_selection_owner (rxvt_term *owner)
273{ 610{
274 if (selection_owner && selection_owner != owner) 611 if (selection_owner && selection_owner != owner)
… …
276 613
277 selection_owner = owner; 614 selection_owner = owner;
278} 615}
279 616
280#ifdef USE_XIM 617#ifdef USE_XIM
618
281void rxvt_display::reg (im_watcher *w) 619void rxvt_display::reg (im_watcher *w)
282{ 620{
283 imw.push_back (w); 621 imw.push_back (w);
284} 622}
285 623
… …
309 return xim; 647 return xim;
310} 648}
311 649
312void rxvt_display::put_xim (rxvt_xim *xim) 650void rxvt_display::put_xim (rxvt_xim *xim)
313{ 651{
652# if XLIB_IS_RACEFREE
314 xims.put (xim); 653 xims.put (xim);
654# endif
315} 655}
656
316#endif 657#endif
317 658
318Atom rxvt_display::atom (const char *name) 659Atom rxvt_display::atom (const char *name)
319{ 660{
320 return XInternAtom (display, name, False); 661 return XInternAtom (dpy, name, False);
321} 662}
322 663
323///////////////////////////////////////////////////////////////////////////// 664/////////////////////////////////////////////////////////////////////////////
324 665
325template class refcache<rxvt_display>; 666template class refcache<rxvt_display>;
326refcache<rxvt_display> displays; 667refcache<rxvt_display> displays;
327 668
328///////////////////////////////////////////////////////////////////////////// 669/////////////////////////////////////////////////////////////////////////////
329 670//
671
672static unsigned int
673insert_component (unsigned int value, unsigned int mask, unsigned int shift)
674{
675 return (value * (mask + 1) >> 16) << shift;
676}
677
330bool 678bool
331rxvt_color::set (rxvt_display *display, Pixel p) 679rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
332{ 680{
333#if XFT 681#if XFT
334 XColor xc; 682 XRenderPictFormat *format;
335 683
336 xc.pixel = p; 684 // FUCKING Xft gets it wrong, of course, so work around it.
337 if (!XQueryColor (display->display, display->cmap, &xc)) 685 // Transparency users should eat shit and die, and then
338 return false; 686 // XRenderQueryPictIndexValues themselves plenty.
687 if ((screen->visual->c_class == TrueColor)
688 && (format = XRenderFindVisualFormat (screen->dpy, screen->visual)))
689 {
690 // the fun lies in doing everything manually...
691 c.color.red = color.r;
692 c.color.green = color.g;
693 c.color.blue = color.b;
694 c.color.alpha = color.a;
339 695
696 c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red )
697 | insert_component (color.g, format->direct.greenMask, format->direct.green)
698 | insert_component (color.b, format->direct.blueMask , format->direct.blue )
699 | insert_component (color.a, format->direct.alphaMask, format->direct.alpha);
700
701 return true;
702 }
703 else
704 {
340 XRenderColor d; 705 XRenderColor d;
341 706
342 d.red = xc.red; 707 d.red = color.r;
343 d.green = xc.green; 708 d.green = color.g;
344 d.blue = xc.blue; 709 d.blue = color.b;
345 d.alpha = 0xffff; 710 d.alpha = color.a;
346 711
347 return 712 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
348 XftColorAllocValue (display->display, 713 }
349 display->visual,
350 display->cmap,
351 &d, &c);
352#else 714#else
353 this->p = p; 715 c.red = color.r;
354#endif 716 c.green = color.g;
717 c.blue = color.b;
355 718
719 if (screen->visual->c_class == TrueColor)
720 {
721 c.pixel = (color.r >> (16 - popcount (screen->visual->red_mask )) << ctz (screen->visual->red_mask ))
722 | (color.g >> (16 - popcount (screen->visual->green_mask)) << ctz (screen->visual->green_mask))
723 | (color.b >> (16 - popcount (screen->visual->blue_mask )) << ctz (screen->visual->blue_mask ));
724
725 return true;
726 }
727 else if (XAllocColor (screen->dpy, screen->cmap, &c))
356 return true; 728 return true;
729 else
730 c.pixel = (color.r + color.g + color.b) > 128*3
731 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
732 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
733#endif
734
735 return false;
357} 736}
358 737
359bool 738bool
360rxvt_color::set (rxvt_display *display, const char *name) 739rxvt_color::set (rxvt_screen *screen, const char *name)
361{ 740{
362 XColor xc; 741 rgba c;
742 char eos;
743 int skip;
363 744
745 // parse the nonstandard "[alphapercent]" prefix
746 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
747 {
748 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
749 name += skip;
750 }
751 else
752 c.a = rgba::MAX_CC;
753
754 // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format
755 if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos))
756 {
757 XColor xc, xc_exact;
758
364 if (XParseColor (display->display, display->cmap, name, &xc)) 759 if (XParseColor (screen->dpy, screen->cmap, name, &xc))
365 return set (display, xc.red, xc.green, xc.blue); 760 {
761 c.r = xc.red;
762 c.g = xc.green;
763 c.b = xc.blue;
764 }
765 else
766 {
767 c.r = 0xffff;
768 c.g = 0x6969;
769 c.b = 0xb4b4;
366 770
367 return false; 771 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
772 }
773 }
774
775 return set (screen, c);
368} 776}
369 777
370bool 778bool
371rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) 779rxvt_color::set (rxvt_screen *screen, const rgba &color)
372{ 780{
373 XColor xc; 781 bool got = alloc (screen, color);
374 782
783#if !ENABLE_MINIMAL
784 int cmap_size = screen->visual->map_entries;
785
786 if (!got
787 && screen->visual->c_class == PseudoColor
788 && cmap_size < 4096)
789 {
790 XColor *colors = new XColor [screen->visual->map_entries];
791
792 for (int i = 0; i < cmap_size; i++)
793 colors [i].pixel = i;
794
795 // many kilobytes transfer per colour, but pseudocolor isn't worth
796 // many extra optimisations.
797 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
798
799 int diff = 0x7fffffffUL;
800 XColor *best = colors;
801
802 for (int i = 0; i < cmap_size; i++)
803 {
804 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
805 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
806 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
807
808 if (d < diff)
809 {
810 diff = d;
811 best = colors + i;
812 }
813 }
814
815 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
816 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
817
818 got = alloc (screen, rgba (best->red, best->green, best->blue));
819
820 delete [] colors;
821 }
822#endif
823
824 return got;
825}
826
827void
828rxvt_color::get (rgba &color)
829{
830#if XFT
831 color.r = c.color.red;
832 color.g = c.color.green;
833 color.b = c.color.blue;
834 color.a = c.color.alpha;
835#else
836 color.r = c.red;
837 color.g = c.green;
838 color.b = c.blue;
839 color.a = rgba::MAX_CC;
840#endif
841}
842
843void
844rxvt_color::get (XColor &color)
845{
846 rgba c;
847 get (c);
848
375 xc.red = cr; 849 color.red = c.r;
376 xc.green = cg; 850 color.green = c.g;
377 xc.blue = cb; 851 color.blue = c.b;
378 xc.flags = DoRed | DoGreen | DoBlue; 852 color.pixel = (Pixel)*this;
379
380 if (XAllocColor (display->display, display->cmap, &xc))
381 return set (display, xc.pixel);
382
383 return false;
384} 853}
385 854
386void 855void
387rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) 856rxvt_color::free (rxvt_screen *screen)
388{ 857{
858 if (screen->visual->c_class == TrueColor)
859 return; // nothing to do
860
389#if XFT 861#if XFT
390 cr = c.color.red; 862 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
391 cg = c.color.green;
392 cb = c.color.blue;
393#else 863#else
394 XColor c; 864 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 865#endif
403} 866}
404 867
405void 868void
406rxvt_color::free (rxvt_display *display) 869rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
407{ 870{
408#if XFT 871 rgba c;
409 XftColorFree (display->display, display->visual, display->cmap, &c); 872 get (c);
410#else
411 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
412#endif
413}
414 873
415rxvt_color 874 result.set (
416rxvt_color::fade (rxvt_display *display, int percent) 875 screen,
417{ 876 rgba (
418 unsigned short cr, cg, cb; 877 lerp (c.r, to.r, percent),
419 rxvt_color faded; 878 lerp (c.g, to.g, percent),
420 879 lerp (c.b, to.b, percent),
421 get (display, cr, cg, cb); 880 lerp (c.a, to.a, percent)
422 faded.set (display, 881 )
423 cr * percent / 100, 882 );
424 cg * percent / 100,
425 cb * percent / 100);
426
427 return faded;
428} 883}
429 884

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