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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 1.103 by root, Fri Sep 4 15:40:13 2009 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) 2003-2007 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 "_NET_WM_ICON",
65#endif
66#if USE_XIM
67 "WM_LOCALE_NAME",
68 "XIM_SERVERS",
69#endif
70#ifdef ENABLE_TRANSPARENCY
71 "_XROOTPMAP_ID",
72 "ESETROOT_PMAP_ID",
73#endif
74#if ENABLE_XEMBED
75 "_XEMBED",
76 "_XEMBED_INFO",
77#endif
78#if !ENABLE_MINIMAL
79 "SCREEN_RESOURCES",
80 "XDCCC_LINEAR_RGB_CORRECTION",
81 "XDCCC_LINEAR_RGB_MATRICES",
82 "WM_COLORMAP_WINDOWS",
83 "WM_STATE",
84 "cursor",
85# if USE_XIM
86 "TRANSPORT",
87 "LOCALES",
88 "_XIM_PROTOCOL",
89 "_XIM_XCONNECT",
90 "_XIM_MOREDATA",
33#endif 91# endif
92#endif
93};
94
95/////////////////////////////////////////////////////////////////////////////
34 96
35refcounted::refcounted (const char *id) 97refcounted::refcounted (const char *id)
36{ 98{
37 this->id = STRDUP (id); 99 this->id = strdup (id);
38} 100}
39 101
40refcounted::~refcounted () 102refcounted::~refcounted ()
41{ 103{
42 free (id); 104 free (id);
… …
47{ 109{
48 for (T **i = this->begin (); i < this->end (); ++i) 110 for (T **i = this->begin (); i < this->end (); ++i)
49 { 111 {
50 if (!strcmp (id, (*i)->id)) 112 if (!strcmp (id, (*i)->id))
51 { 113 {
52 (*i)->referenced++; 114 ++(*i)->referenced;
115 (*i)->ref_next ();
53 return *i; 116 return *i;
54 } 117 }
55 } 118 }
56 119
57 T *obj = new T (id); 120 T *obj = new T (id);
58 121
59 obj->referenced = 1;
60
61 if (obj && obj->init ()) 122 if (obj && obj->ref_init ())
62 { 123 {
124 obj->referenced = 1;
63 this->push_back (obj); 125 this->push_back (obj);
64 return obj; 126 return obj;
65 } 127 }
66 else 128 else
67 { 129 {
… …
82 delete obj; 144 delete obj;
83 } 145 }
84} 146}
85 147
86template<class T> 148template<class T>
87refcache<T>::~refcache () 149void refcache<T>::clear ()
88{ 150{
89 while (this->size ()) 151 while (this->size ())
90 put (*this->begin ()); 152 put (*this->begin ());
91} 153}
92 154
93///////////////////////////////////////////////////////////////////////////// 155/////////////////////////////////////////////////////////////////////////////
94 156
95#ifdef USE_XIM 157#ifdef USE_XIM
158
96static void 159static void
97#if XIMCB_PROTO_BROKEN 160#if XIMCB_PROTO_BROKEN
98im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3) 161im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3)
99#else 162#else
100im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3) 163im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3)
101#endif 164#endif
102{ 165{
103 rxvt_xim *xim = (rxvt_xim *)client_data; 166 rxvt_xim *xim = (rxvt_xim *)client_data;
104 rxvt_display *display = xim->display; 167 rxvt_display *display = xim->display;
105 168
169 xim->xim = 0;
170
106 display->xims.erase (find (display->xims.begin (), display->xims.end (), xim)); 171 display->xims.erase (find (display->xims.begin (), display->xims.end (), xim));
107
108 display->im_change_cb (); 172 display->im_change_cb ();
109} 173}
110 174
175bool
111bool rxvt_xim::init () 176rxvt_xim::ref_init ()
112{ 177{
113 display = GET_R->display; //HACK: TODO 178 display = GET_R->display; //HACK: TODO
114 179
115 xim = XOpenIM (display->display, NULL, NULL, NULL); 180 xim = XOpenIM (display->dpy, 0, 0, 0);
116 181
117 if (!xim) 182 if (!xim)
118 return false; 183 return false;
119 184
120 XIMCallback ximcallback; 185 XIMCallback ximcallback;
121 ximcallback.client_data = (XPointer)this; 186 ximcallback.client_data = (XPointer)this;
122 ximcallback.callback = im_destroy_cb; 187 ximcallback.callback = im_destroy_cb;
123 188
124 XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL); 189 XSetIMValues (xim, XNDestroyCallback, &ximcallback, (char *)0);
125 190
126 return true; 191 return true;
127} 192}
128 193
129rxvt_xim::~rxvt_xim () 194rxvt_xim::~rxvt_xim ()
130{ 195{
131 if (xim) 196 if (xim)
132 XCloseIM (xim); 197 XCloseIM (xim);
133} 198}
199
134#endif 200#endif
201
202/////////////////////////////////////////////////////////////////////////////
203
204#if XFT
205rxvt_drawable::~rxvt_drawable ()
206{
207 if (xftdrawable)
208 XftDrawDestroy (xftdrawable);
209}
210
211rxvt_drawable::operator XftDraw *()
212{
213 if (!xftdrawable)
214 xftdrawable = XftDrawCreate (screen->dpy, drawable, screen->visual, screen->cmap);
215
216 return xftdrawable;
217}
218#endif
219
220/////////////////////////////////////////////////////////////////////////////
221
222#if XFT
223
224// not strictly necessary as it is only used with superclass of zero_initialised
225rxvt_screen::rxvt_screen ()
226: scratch_area (0)
227{
228}
229
230rxvt_drawable &rxvt_screen::scratch_drawable (int w, int h)
231{
232 // it's actually faster to re-allocate every time. don't ask me
233 // why, but its likely no big deal there are no roundtrips
234 // (I think/hope).
235 if (!scratch_area || w > scratch_w || h > scratch_h || 1/*D*/)
236 {
237 if (scratch_area)
238 {
239 XFreePixmap (dpy, scratch_area->drawable);
240 delete scratch_area;
241 }
242
243 Pixmap pm = XCreatePixmap (dpy, RootWindowOfScreen (ScreenOfDisplay (dpy, display->screen)),
244 scratch_w = w, scratch_h = h, depth);
245
246 scratch_area = new rxvt_drawable (this, pm);
247 }
248
249 return *scratch_area;
250}
251
252#endif
253
254void
255rxvt_screen::set (rxvt_display *disp)
256{
257 display = disp;
258 dpy = disp->dpy;
259
260 Screen *screen = ScreenOfDisplay (dpy, disp->screen);
261
262 depth = DefaultDepthOfScreen (screen);
263 visual = DefaultVisualOfScreen (screen);
264 cmap = DefaultColormapOfScreen (screen);
265}
266
267void
268rxvt_screen::select_visual (int bitdepth)
269{
270#if XFT
271 XVisualInfo vinfo;
272
273 if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo))
274 {
275 depth = bitdepth;
276 visual = vinfo.visual;
277 cmap = XCreateColormap (dpy, display->root, visual, AllocNone);
278 }
279#endif
280}
281
282void
283rxvt_screen::clear ()
284{
285#if XFT
286 if (scratch_area)
287 {
288 XFreePixmap (dpy, scratch_area->drawable);
289 delete scratch_area;
290 }
291#endif
292
293 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (dpy, display->screen)))
294 XFreeColormap (dpy, cmap);
295}
135 296
136///////////////////////////////////////////////////////////////////////////// 297/////////////////////////////////////////////////////////////////////////////
137 298
138rxvt_display::rxvt_display (const char *id) 299rxvt_display::rxvt_display (const char *id)
139: refcounted (id) 300: refcounted (id)
140, x_ev (this, &rxvt_display::x_cb)
141, selection_owner (0) 301, selection_owner (0)
142{ 302{
303 x_ev .set<rxvt_display, &rxvt_display::x_cb > (this);
304 flush_ev.set<rxvt_display, &rxvt_display::flush_cb> (this);
143} 305}
144 306
307XrmDatabase
308rxvt_display::get_resources (bool refresh)
309{
310 char *homedir = getenv ("HOME");
311 char fname[1024];
312
313 /*
314 * get resources using the X library function
315 */
316 char *displayResource, *xe;
317 XrmDatabase rdb1, database = 0;
318
319 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20
320 // as opposed to "standard practise", we always read in ~/.Xdefaults
321
322 // 6. System wide per application default file.
323
324 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */
325 if ((xe = getenv ("XAPPLRESDIR")))
326 {
327 snprintf (fname, sizeof (fname), "%s/%s", xe, RESCLASS);
328
329 if ((rdb1 = XrmGetFileDatabase (fname)))
330 XrmMergeDatabases (rdb1, &database);
331 }
332
333 // 5. User's per application default file.
334 // none
335
336 // 4. User's defaults file.
337 if (homedir)
338 {
339 snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir);
340
341 if ((rdb1 = XrmGetFileDatabase (fname)))
342 XrmMergeDatabases (rdb1, &database);
343 }
344
345 /* Get any Xserver defaults */
346 if (refresh)
347 {
348 // fucking xlib keeps a copy of the rm string
349 Atom actual_type;
350 int actual_format;
351 unsigned long nitems, nremaining;
352 char *val = 0;
353
354#if XLIB_ILLEGAL_ACCESS
355 if (dpy->xdefaults)
356 XFree (dpy->xdefaults);
357#endif
358
359 if (XGetWindowProperty (dpy, RootWindow (dpy, 0), XA_RESOURCE_MANAGER,
360 0L, 100000000L, False,
361 XA_STRING, &actual_type, &actual_format,
362 &nitems, &nremaining,
363 (unsigned char **)&val) == Success
364 && actual_type == XA_STRING
365 && actual_format == 8)
366 displayResource = val;
367 else
368 {
369 displayResource = 0;
370
371 if (val)
372 XFree(val);
373 }
374
375#if XLIB_ILLEGAL_ACCESS
376 dpy->xdefaults = displayResource;
377#endif
378 }
379 else
380 displayResource = XResourceManagerString (dpy);
381
382 if (displayResource)
383 {
384 if ((rdb1 = XrmGetStringDatabase (displayResource)))
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 = 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
161 // try to detetc wether we have a local connection. 468 // try to detect wether we have a local connection.
162 // assume unix domains socket == local, everything else not 469 // assume unix domain socket == local, everything else not
163 // TODO: might want to check for inet/127.0.0.1 470 // TODO: might want to check for inet/127.0.0.1
164 is_local = 0; 471 is_local = 0;
165 sockaddr_un sa; 472 sockaddr_un sa;
166 socklen_t sl = sizeof (sa); 473 socklen_t sl = sizeof (sa);
167 474
168 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 475 if (!getsockname (fd, (sockaddr *)&sa, &sl))
169 is_local = sa.sun_family == AF_LOCAL; 476 is_local = sa.sun_family == AF_UNIX;
170#endif
171 477
172#ifdef PREFER_24BIT 478 flush_ev.start ();
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); 479 x_ev.start (fd, ev::READ);
192 fcntl (fd, F_SETFD, FD_CLOEXEC); 480 fcntl (fd, F_SETFD, FD_CLOEXEC);
193 481
194 XSelectInput (display, root, PropertyChangeMask); 482 XSelectInput (dpy, root, PropertyChangeMask);
483
484 flush ();
485
486 return true;
487}
488
489void
490rxvt_display::ref_next ()
491{
492 // TODO: somehow check wether the database files/resources changed
493 // before affording re-loading/parsing
494 XrmDestroyDatabase (XrmGetDatabase (dpy));
495 XrmSetDatabase (dpy, get_resources (true));
496}
497
498rxvt_display::~rxvt_display ()
499{
500 if (!dpy)
501 return;
502
503#ifdef POINTER_BLANK
504 XFreeCursor (dpy, blank_cursor);
505#endif
506 x_ev.stop ();
507 flush_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}
218#endif
219 520
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}
545#endif
546
220void rxvt_display::x_cb (io_watcher &w, short revents) 547void rxvt_display::x_cb (ev::io &w, int revents)
221{ 548{
549 flush_ev.start ();
550}
551
552void rxvt_display::flush_cb (ev::prepare &w, int revents)
553{
554 while (XEventsQueued (dpy, QueuedAfterFlush))
222 do 555 do
223 { 556 {
224 XEvent xev; 557 XEvent xev;
225 XNextEvent (display, &xev); 558 XNextEvent (dpy, &xev);
226
227 //printf ("T %d w %lx\n", xev.type, xev.xany.window);//D
228 559
229#ifdef USE_XIM 560#ifdef USE_XIM
561 if (!XFilterEvent (&xev, None))
562 {
230 if (xev.type == PropertyNotify 563 if (xev.type == PropertyNotify
231 && xev.xany.window == root 564 && xev.xany.window == root
232 && xev.xproperty.atom == xa_xim_servers) 565 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
233 im_change_cb (); 566 im_change_check ();
234#endif 567#endif
568 if (xev.type == MappingNotify)
569 XRefreshKeyboardMapping (&xev.xmapping);
235 570
236 for (int i = xw.size (); i--; ) 571 for (int i = xw.size (); i--; )
237 { 572 {
238 if (!xw[i]) 573 if (!xw[i])
239 xw.erase_unordered (i); 574 xw.erase_unordered (i);
240 else if (xw[i]->window == xev.xany.window) 575 else if (xw[i]->window == xev.xany.window)
241 xw[i]->call (xev); 576 xw[i]->call (xev);
577 }
578#ifdef USE_XIM
242 } 579 }
580#endif
243 } 581 }
244 while (XPending (display)); 582 while (XEventsQueued (dpy, QueuedAlready));
245 583
246 flush (); 584 w.stop ();
247}
248
249void rxvt_display::flush ()
250{
251 for (;;)
252 {
253 if (!XPending (display))
254 break;
255
256 x_cb (x_ev, 0);
257 }
258} 585}
259 586
260void rxvt_display::reg (xevent_watcher *w) 587void rxvt_display::reg (xevent_watcher *w)
261{ 588{
589 if (!w->active)
590 {
262 xw.push_back (w); 591 xw.push_back (w);
263 w->active = xw.size (); 592 w->active = xw.size ();
593 }
264} 594}
265 595
266void rxvt_display::unreg (xevent_watcher *w) 596void rxvt_display::unreg (xevent_watcher *w)
267{ 597{
268 if (w->active) 598 if (w->active)
599 {
269 xw[w->active - 1] = 0; 600 xw[w->active - 1] = 0;
601 w->active = 0;
602 }
270} 603}
271 604
272void rxvt_display::set_selection_owner (rxvt_term *owner) 605void rxvt_display::set_selection_owner (rxvt_term *owner)
273{ 606{
274 if (selection_owner && selection_owner != owner) 607 if (selection_owner && selection_owner != owner)
608 {
609 rxvt_term *owner = selection_owner;
610
275 selection_owner->selection_clear (); 611 owner->selection_clear ();
612 owner->flush ();
613 }
276 614
277 selection_owner = owner; 615 selection_owner = owner;
278} 616}
279 617
280#ifdef USE_XIM 618#ifdef USE_XIM
619
281void rxvt_display::reg (im_watcher *w) 620void rxvt_display::reg (im_watcher *w)
282{ 621{
283 imw.push_back (w); 622 imw.push_back (w);
284} 623}
285 624
… …
309 return xim; 648 return xim;
310} 649}
311 650
312void rxvt_display::put_xim (rxvt_xim *xim) 651void rxvt_display::put_xim (rxvt_xim *xim)
313{ 652{
653# if XLIB_IS_RACEFREE
314 xims.put (xim); 654 xims.put (xim);
655# endif
315} 656}
657
316#endif 658#endif
317 659
318Atom rxvt_display::atom (const char *name) 660Atom rxvt_display::atom (const char *name)
319{ 661{
320 return XInternAtom (display, name, False); 662 return XInternAtom (dpy, name, False);
321} 663}
322 664
323///////////////////////////////////////////////////////////////////////////// 665/////////////////////////////////////////////////////////////////////////////
324 666
325template class refcache<rxvt_display>; 667template class refcache<rxvt_display>;
326refcache<rxvt_display> displays; 668refcache<rxvt_display> displays;
327 669
328///////////////////////////////////////////////////////////////////////////// 670/////////////////////////////////////////////////////////////////////////////
329 671//
672
673static unsigned int
674insert_component (unsigned int value, unsigned int mask, unsigned int shift)
675{
676 return (value * (mask + 1) >> 16) << shift;
677}
678
330bool 679bool
331rxvt_color::set (rxvt_display *display, Pixel p) 680rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
332{ 681{
682 //TODO: only supports 24 bit
683 int alpha = color.a >= 0xff00 ? 0xffff : color.a;
684
333#if XFT 685#if XFT
334 XColor xc; 686 XRenderPictFormat *format;
335 687
336 xc.pixel = p; 688 // FUCKING Xft gets it wrong, of course, so work around it.
337 if (!XQueryColor (display->display, display->cmap, &xc)) 689 // Transparency users should eat shit and die, and then
338 return false; 690 // XRenderQueryPictIndexValues themselves plenty.
691 if ((screen->visual->c_class == TrueColor)
692 && (format = XRenderFindVisualFormat (screen->dpy, screen->visual)))
693 {
694 // the fun lies in doing everything manually...
695 c.color.red = color.r;
696 c.color.green = color.g;
697 c.color.blue = color.b;
698 c.color.alpha = alpha;
339 699
700 c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red )
701 | insert_component (color.g, format->direct.greenMask, format->direct.green)
702 | insert_component (color.b, format->direct.blueMask , format->direct.blue )
703 | insert_component (alpha , format->direct.alphaMask, format->direct.alpha);
704
705 return true;
706 }
707 else
708 {
340 XRenderColor d; 709 XRenderColor d;
341 710
342 d.red = xc.red; 711 d.red = color.r;
343 d.green = xc.green; 712 d.green = color.g;
344 d.blue = xc.blue; 713 d.blue = color.b;
345 d.alpha = 0xffff; 714 d.alpha = alpha;
346 715
347 return 716 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
348 XftColorAllocValue (display->display, 717 }
349 display->visual,
350 display->cmap,
351 &d, &c);
352#else 718#else
353 this->p = p; 719 c.red = color.r;
354#endif 720 c.green = color.g;
721 c.blue = color.b;
355 722
723 if (screen->visual->c_class == TrueColor)
724 {
725 c.pixel = (color.r >> (16 - rxvt_popcount (screen->visual->red_mask )) << rxvt_ctz (screen->visual->red_mask ))
726 | (color.g >> (16 - rxvt_popcount (screen->visual->green_mask)) << rxvt_ctz (screen->visual->green_mask))
727 | (color.b >> (16 - rxvt_popcount (screen->visual->blue_mask )) << rxvt_ctz (screen->visual->blue_mask ));
728
729 return true;
730 }
731 else if (XAllocColor (screen->dpy, screen->cmap, &c))
356 return true; 732 return true;
733 else
734 c.pixel = (color.r + color.g + color.b) > 128*3
735 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
736 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
737#endif
738
739 return false;
357} 740}
358 741
359bool 742bool
360rxvt_color::set (rxvt_display *display, const char *name) 743rxvt_color::set (rxvt_screen *screen, const char *name)
361{ 744{
745 rgba c;
746 char eos;
747 int skip;
748
749 c.a = rgba::MAX_CC;
750
751 // parse the nonstandard "[alphapercent]" prefix
752 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
753 {
754 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
755 name += skip;
756 }
757
758 // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format
759 if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos))
760 {
362 XColor xc; 761 XColor xc;
363 762
364 if (XParseColor (display->display, display->cmap, name, &xc)) 763 if (XParseColor (screen->dpy, screen->cmap, name, &xc))
365 return set (display, xc.red, xc.green, xc.blue); 764 {
765 c.r = xc.red;
766 c.g = xc.green;
767 c.b = xc.blue;
768 }
769 else
770 {
771 c.r = 0xffff;
772 c.g = 0x6969;
773 c.b = 0xb4b4;
366 774
367 return false; 775 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
776 }
777 }
778
779 return set (screen, c);
368} 780}
369 781
370bool 782bool
371rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) 783rxvt_color::set (rxvt_screen *screen, const rgba &color)
372{ 784{
373 XColor xc; 785 bool got = alloc (screen, color);
374 786
375 xc.red = cr; 787#if !ENABLE_MINIMAL
376 xc.green = cg; 788 int cmap_size = screen->visual->map_entries;
377 xc.blue = cb;
378 xc.flags = DoRed | DoGreen | DoBlue;
379 789
380 if (XAllocColor (display->display, display->cmap, &xc)) 790 if (!got
381 return set (display, xc.pixel); 791 && screen->visual->c_class == PseudoColor
792 && cmap_size < 4096)
793 {
794 XColor *colors = new XColor [screen->visual->map_entries];
382 795
383 return false; 796 for (int i = 0; i < cmap_size; i++)
384} 797 colors [i].pixel = i;
385 798
799 // many kilobytes transfer per colour, but pseudocolor isn't worth
800 // many extra optimisations.
801 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
802
803 int diff = 0x7fffffffUL;
804 XColor *best = colors;
805
806 for (int i = 0; i < cmap_size; i++)
807 {
808 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
809 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
810 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
811
812 if (d < diff)
813 {
814 diff = d;
815 best = colors + i;
816 }
817 }
818
819 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
820 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
821
822 got = alloc (screen, rgba (best->red, best->green, best->blue));
823
824 delete [] colors;
825 }
826#endif
827
828 return got;
829}
830
386void 831void
387rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) 832rxvt_color::get (rgba &color)
388{ 833{
389#if XFT 834#if XFT
390 cr = c.color.red; 835 color.r = c.color.red;
391 cg = c.color.green; 836 color.g = c.color.green;
392 cb = c.color.blue; 837 color.b = c.color.blue;
838 color.a = c.color.alpha;
393#else 839#else
394 XColor c;
395
396 c.pixel = p;
397 XQueryColor (display->display, display->cmap, &c);
398
399 cr = c.red; 840 color.r = c.red;
400 cg = c.green; 841 color.g = c.green;
401 cb = c.blue; 842 color.b = c.blue;
843 color.a = rgba::MAX_CC;
402#endif 844#endif
403} 845}
404 846
405void 847void
406rxvt_color::free (rxvt_display *display) 848rxvt_color::get (XColor &color)
407{ 849{
850 rgba c;
851 get (c);
852
853 color.red = c.r;
854 color.green = c.g;
855 color.blue = c.b;
856 color.pixel = (Pixel)*this;
857}
858
859void
860rxvt_color::free (rxvt_screen *screen)
861{
862 if (screen->visual->c_class == TrueColor)
863 return; // nothing to do
864
408#if XFT 865#if XFT
409 XftColorFree (display->display, display->visual, display->cmap, &c); 866 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
410#else 867#else
411 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes); 868 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
412#endif 869#endif
413} 870}
414 871
415rxvt_color 872void
416rxvt_color::fade (rxvt_display *display, int percent) 873rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
417{ 874{
418 unsigned short cr, cg, cb; 875 rgba c;
419 rxvt_color faded; 876 get (c);
420 877
421 get (display, cr, cg, cb); 878 result.set (
422 faded.set (display, 879 screen,
423 cr * percent / 100, 880 rgba (
424 cg * percent / 100, 881 lerp (c.r, to.r, percent),
425 cb * percent / 100); 882 lerp (c.g, to.g, percent),
883 lerp (c.b, to.b, percent),
884 lerp (c.a, to.a, percent)
885 )
886 );
887}
426 888
889#if TRACE_PIXMAPS
890# undef XCreatePixmap
891# undef XFreePixmap
892Pixmap trace_XCreatePixmap (const char *file, int line, Display *dpy, Window r, unsigned int w, unsigned int h, unsigned int d)
893{
894 Pixmap res = XCreatePixmap (dpy, r, w, h, d);
895 fprintf (stderr, "%s:%d: XCreatePixmap (%p,%lX,%u,%u,%u) returned %lX\n", file, line, dpy, r, w, h, d, res);
427 return faded; 896 return res;
428} 897}
429 898
899void trace_XFreePixmap (const char *file, int line, Display *dpy, Pixmap p)
900{
901 fprintf (stderr, "%s:%d: XFreePixmap (%p,%lX)\n", file, line, dpy, p);
902 XFreePixmap (dpy,p);
903}
904#endif

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