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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.12 by root, Mon Jan 17 00:59:24 2005 UTC vs.
Revision 1.93 by root, Sat Jan 26 10:24:47 2008 UTC

1/*--------------------------------*-C-*---------------------------------* 1/*----------------------------------------------------------------------*
2 * File: rxvttoolkit.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#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}
… …
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 {
… …
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)
… …
107 169
108 display->xims.erase (find (display->xims.begin (), display->xims.end (), xim)); 170 display->xims.erase (find (display->xims.begin (), display->xims.end (), xim));
109 display->im_change_cb (); 171 display->im_change_cb ();
110} 172}
111 173
174bool
112bool rxvt_xim::init () 175rxvt_xim::ref_init ()
113{ 176{
114 display = GET_R->display; //HACK: TODO 177 display = GET_R->display; //HACK: TODO
115 178
116 xim = XOpenIM (display->display, NULL, NULL, NULL); 179 xim = XOpenIM (display->dpy, 0, 0, 0);
117 180
118 if (!xim) 181 if (!xim)
119 return false; 182 return false;
120 183
121 XIMCallback ximcallback; 184 XIMCallback ximcallback;
122 ximcallback.client_data = (XPointer)this; 185 ximcallback.client_data = (XPointer)this;
123 ximcallback.callback = im_destroy_cb; 186 ximcallback.callback = im_destroy_cb;
124 187
125 XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL); 188 XSetIMValues (xim, XNDestroyCallback, &ximcallback, (char *)0);
126 189
127 return true; 190 return true;
128} 191}
129 192
130rxvt_xim::~rxvt_xim () 193rxvt_xim::~rxvt_xim ()
131{ 194{
132 if (xim) 195 if (xim)
133 XCloseIM (xim); 196 XCloseIM (xim);
134} 197}
198
135#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}
136 295
137///////////////////////////////////////////////////////////////////////////// 296/////////////////////////////////////////////////////////////////////////////
138 297
139rxvt_display::rxvt_display (const char *id) 298rxvt_display::rxvt_display (const char *id)
140: refcounted (id) 299: refcounted (id)
141, x_ev (this, &rxvt_display::x_cb)
142, selection_owner (0) 300, selection_owner (0)
143{ 301{
302 x_ev .set<rxvt_display, &rxvt_display::x_cb > (this);
303 flush_ev.set<rxvt_display, &rxvt_display::flush_cb> (this);
144} 304}
145 305
306XrmDatabase
307rxvt_display::get_resources (bool refresh)
308{
309 char *homedir = getenv ("HOME");
310 char fname[1024];
311
312 /*
313 * get resources using the X library function
314 */
315 char *displayResource, *xe;
316 XrmDatabase rdb1, database = 0;
317
318 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20
319 // as opposed to "standard practise", we always read in ~/.Xdefaults
320
321 // 6. System wide per application default file.
322
323 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */
324 if ((xe = getenv ("XAPPLRESDIR")))
325 {
326 snprintf (fname, sizeof (fname), "%s/%s", xe, RESCLASS);
327
328 if ((rdb1 = XrmGetFileDatabase (fname)))
329 XrmMergeDatabases (rdb1, &database);
330 }
331
332 // 5. User's per application default file.
333 // none
334
335 // 4. User's defaults file.
336 if (homedir)
337 {
338 snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir);
339
340 if ((rdb1 = XrmGetFileDatabase (fname)))
341 XrmMergeDatabases (rdb1, &database);
342 }
343
344 /* Get any Xserver defaults */
345 if (refresh)
346 {
347 // fucking xlib keeps a copy of the rm string
348 Atom actual_type;
349 int actual_format;
350 unsigned long nitems, nremaining;
351 char *val = 0;
352
353#if XLIB_ILLEGAL_ACCESS
354 if (dpy->xdefaults)
355 XFree (dpy->xdefaults);
356#endif
357
358 if (XGetWindowProperty (dpy, RootWindow (dpy, 0), XA_RESOURCE_MANAGER,
359 0L, 100000000L, False,
360 XA_STRING, &actual_type, &actual_format,
361 &nitems, &nremaining,
362 (unsigned char **)&val) == Success
363 && actual_type == XA_STRING
364 && actual_format == 8)
365 displayResource = val;
366 else
367 {
368 displayResource = 0;
369
370 if (val)
371 XFree(val);
372 }
373
374#if XLIB_ILLEGAL_ACCESS
375 dpy->xdefaults = displayResource;
376#endif
377 }
378 else
379 displayResource = XResourceManagerString (dpy);
380
381 if (displayResource)
382 {
383 if ((rdb1 = XrmGetStringDatabase (displayResource)))
384 XrmMergeDatabases (rdb1, &database);
385 }
386
387#if !XLIB_ILLEGAL_ACCESS
388 if (refresh && displayResource)
389 XFree (displayResource);
390#endif
391
392 /* Get screen specific resources */
393 displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen));
394
395 if (displayResource)
396 {
397 if ((rdb1 = XrmGetStringDatabase (displayResource)))
398 /* Merge with screen-independent resources */
399 XrmMergeDatabases (rdb1, &database);
400
401 XFree (displayResource);
402 }
403
404 // 3. User's per host defaults file
405 /* Add in XENVIRONMENT file */
406 if ((xe = getenv ("XENVIRONMENT"))
407 && (rdb1 = XrmGetFileDatabase (xe)))
408 XrmMergeDatabases (rdb1, &database);
409 else if (homedir)
410 {
411 struct utsname un;
412
413 if (!uname (&un))
414 {
415 snprintf (fname, sizeof (fname), "%s/.Xdefaults-%s", homedir, un.nodename);
416
417 if ((rdb1 = XrmGetFileDatabase (fname)))
418 XrmMergeDatabases (rdb1, &database);
419 }
420 }
421
422 return database;
423}
424
146bool rxvt_display::init () 425bool rxvt_display::ref_init ()
147{ 426{
427#ifdef LOCAL_X_IS_UNIX
428 if (id[0] == ':')
429 {
430 val = rxvt_malloc (5 + strlen (id) + 1);
431 strcpy (val, "unix/");
432 strcat (val, id);
433 dpy = XOpenDisplay (val);
434 free (val);
435 }
436 else
437#endif
438 dpy = 0;
439
440 if (!dpy)
148 display = XOpenDisplay (id); 441 dpy = XOpenDisplay (id);
149 442
150 if (!display) 443 if (!dpy)
151 return false; 444 return false;
152 445
153 screen = DefaultScreen (display); 446 screen = DefaultScreen (dpy);
154 root = DefaultRootWindow (display); 447 root = DefaultRootWindow (dpy);
155 visual = DefaultVisual (display, screen);
156 cmap = DefaultColormap (display, screen);
157 depth = DefaultDepth (display, screen);
158 448
159 int fd = XConnectionNumber (display); 449 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
450 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
160 451
161#ifndef NO_SLOW_LINK_SUPPORT 452 XrmSetDatabase (dpy, get_resources (false));
162 // try to detetc wether we have a local connection.
163 // assume unix domains socket == local, everything else not
164 // TODO: might want to check for inet/127.0.0.1
165 is_local = 0;
166 sockaddr_un sa;
167 socklen_t sl = sizeof (sa);
168
169 if (!getsockname (fd, (sockaddr *)&sa, &sl))
170 is_local = sa.sun_family == AF_LOCAL;
171#endif
172 453
173#ifdef POINTER_BLANK 454#ifdef POINTER_BLANK
174 XColor blackcolour; 455 XColor blackcolour;
175 blackcolour.red = 0; 456 blackcolour.red = 0;
176 blackcolour.green = 0; 457 blackcolour.green = 0;
177 blackcolour.blue = 0; 458 blackcolour.blue = 0;
178 Font f = XLoadFont (display, "fixed"); 459 Font f = XLoadFont (dpy, "fixed");
179 blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', 460 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
180 &blackcolour, &blackcolour); 461 &blackcolour, &blackcolour);
181 XUnloadFont (display, f); 462 XUnloadFont (dpy, f);
182#endif 463#endif
183 464
184#ifdef PREFER_24BIT 465 int fd = XConnectionNumber (dpy);
185 /*
186 * If depth is not 24, look for a 24bit visual.
187 */
188 if (depth != 24)
189 {
190 XVisualInfo vinfo;
191 466
192 if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo)) 467 // try to detect wether we have a local connection.
193 { 468 // assume unix domain socket == local, everything else not
194 depth = 24; 469 // TODO: might want to check for inet/127.0.0.1
195 visual = vinfo.visual; 470 is_local = 0;
196 cmap = XCreateColormap (display, 471 sockaddr_un sa;
197 RootWindow (display, screen), 472 socklen_t sl = sizeof (sa);
198 visual, AllocNone);
199 }
200 }
201#endif
202 473
474 if (!getsockname (fd, (sockaddr *)&sa, &sl))
475 is_local = sa.sun_family == AF_UNIX;
476
477 flush_ev.start ();
203 x_ev.start (fd, EVENT_READ); 478 x_ev.start (fd, ev::READ);
204 fcntl (fd, F_SETFD, FD_CLOEXEC); 479 fcntl (fd, F_SETFD, FD_CLOEXEC);
205 480
206 XSelectInput (display, root, PropertyChangeMask); 481 XSelectInput (dpy, root, PropertyChangeMask);
207#ifdef USE_XIM
208 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0);
209#endif
210 482
211 flush (); 483 flush ();
212 484
213 return true; 485 return true;
214} 486}
215 487
488void
489rxvt_display::ref_next ()
490{
491 // TODO: somehow check wether the database files/resources changed
492 // before affording re-loading/parsing
493 XrmDestroyDatabase (XrmGetDatabase (dpy));
494 XrmSetDatabase (dpy, get_resources (true));
495}
496
216rxvt_display::~rxvt_display () 497rxvt_display::~rxvt_display ()
217{ 498{
499 if (!dpy)
500 return;
501
502#ifdef POINTER_BLANK
503 XFreeCursor (dpy, blank_cursor);
504#endif
218 x_ev.stop (); 505 x_ev.stop ();
506 flush_ev.stop ();
219#ifdef USE_XIM 507#ifdef USE_XIM
220 xims.clear (); 508 xims.clear ();
221#endif 509#endif
222
223 if (display)
224 XCloseDisplay (display); 510 XCloseDisplay (dpy);
225} 511}
226 512
227#ifdef USE_XIM 513#ifdef USE_XIM
228void rxvt_display::im_change_cb () 514void rxvt_display::im_change_cb ()
229{ 515{
… …
231 (*i)->call (); 517 (*i)->call ();
232} 518}
233 519
234void rxvt_display::im_change_check () 520void rxvt_display::im_change_check ()
235{ 521{
236 // make sure we only call im_change_cb when a new input method 522 // try to only call im_change_cb when a new input method
237 // registers, as xlib crashes due to a race otherwise. 523 // registers, as xlib crashes due to a race otherwise.
238 Atom actual_type, *atoms; 524 Atom actual_type, *atoms;
239 int actual_format; 525 int actual_format;
240 unsigned long nitems, bytes_after; 526 unsigned long nitems, bytes_after;
241 527
242 if (XGetWindowProperty (display, root, xa_xim_servers, 0L, 1000000L, 528 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
243 False, XA_ATOM, &actual_type, &actual_format, 529 False, XA_ATOM, &actual_type, &actual_format,
244 &nitems, &bytes_after, (unsigned char **)&atoms) 530 &nitems, &bytes_after, (unsigned char **)&atoms)
245 != Success ) 531 != Success )
246 return; 532 return;
247 533
248 if (actual_type == XA_ATOM && actual_format == 32) 534 if (actual_type == XA_ATOM && actual_format == 32)
249 for (int i = 0; i < nitems; i++) 535 for (int i = 0; i < nitems; i++)
250 if (XGetSelectionOwner (display, atoms[i])) 536 if (XGetSelectionOwner (dpy, atoms[i]))
251 { 537 {
252 im_change_cb (); 538 im_change_cb ();
253 break; 539 break;
254 } 540 }
255 541
256 XFree (atoms); 542 XFree (atoms);
257} 543}
258#endif 544#endif
259 545
260void rxvt_display::x_cb (io_watcher &w, short revents) 546void rxvt_display::x_cb (ev::io &w, int revents)
261{ 547{
262 do 548 while (XEventsQueued (dpy, QueuedAfterReading))
263 { 549 {
264 XEvent xev; 550 XEvent xev;
265 XNextEvent (display, &xev); 551 XNextEvent (dpy, &xev);
552
553 flush_ev.start ();
266 554
267#ifdef USE_XIM 555#ifdef USE_XIM
268 if (!XFilterEvent (&xev, None)) 556 if (!XFilterEvent (&xev, None))
557#endif
269 { 558 {
270
271 if (xev.type == PropertyNotify 559 if (xev.type == PropertyNotify
272 && xev.xany.window == root 560 && xev.xany.window == root
273 && xev.xproperty.atom == xa_xim_servers) 561 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
274 im_change_check (); 562 im_change_check ();
275#endif 563 if (xev.type == MappingNotify)
564 XRefreshKeyboardMapping (&xev.xmapping);
565
276 for (int i = xw.size (); i--; ) 566 for (int i = xw.size (); i--; )
277 { 567 {
278 if (!xw[i]) 568 if (!xw[i])
279 xw.erase_unordered (i); 569 xw.erase_unordered (i);
280 else if (xw[i]->window == xev.xany.window) 570 else if (xw[i]->window == xev.xany.window)
281 xw[i]->call (xev); 571 xw[i]->call (xev);
282 } 572 }
573 }
574 }
575
576 XFlush (dpy);
577}
578
579void rxvt_display::flush_cb (ev::idle &w, int revents)
580{
581 XFlush (dpy);
582}
583
584void rxvt_display::reg (xevent_watcher *w)
585{
586 if (!w->active)
587 {
588 xw.push_back (w);
589 w->active = xw.size ();
590 }
591}
592
593void rxvt_display::unreg (xevent_watcher *w)
594{
595 if (w->active)
596 {
597 xw[w->active - 1] = 0;
598 w->active = 0;
599 }
600}
601
602void rxvt_display::set_selection_owner (rxvt_term *owner)
603{
604 if (selection_owner && selection_owner != owner)
605 {
606 rxvt_term *owner = selection_owner;
607
608 owner->selection_clear ();
609 owner->flush ();
610 }
611
612 selection_owner = owner;
613}
614
283#ifdef USE_XIM 615#ifdef USE_XIM
284 }
285#endif
286 }
287 while (XEventsQueued (display, QueuedAlready));
288 616
289 XFlush (display);
290}
291
292void rxvt_display::flush ()
293{
294 if (XEventsQueued (display, QueuedAlready))
295 x_cb (x_ev, EVENT_READ);
296
297 XFlush (display);
298}
299
300void rxvt_display::reg (xevent_watcher *w)
301{
302 xw.push_back (w);
303 w->active = xw.size ();
304}
305
306void rxvt_display::unreg (xevent_watcher *w)
307{
308 if (w->active)
309 xw[w->active - 1] = 0;
310}
311
312void rxvt_display::set_selection_owner (rxvt_term *owner)
313{
314 if (selection_owner && selection_owner != owner)
315 selection_owner->selection_clear ();
316
317 selection_owner = owner;
318}
319
320#ifdef USE_XIM
321void rxvt_display::reg (im_watcher *w) 617void rxvt_display::reg (im_watcher *w)
322{ 618{
323 imw.push_back (w); 619 imw.push_back (w);
324} 620}
325 621
… …
349 return xim; 645 return xim;
350} 646}
351 647
352void rxvt_display::put_xim (rxvt_xim *xim) 648void rxvt_display::put_xim (rxvt_xim *xim)
353{ 649{
354#if XLIB_IS_RACEFREE 650# if XLIB_IS_RACEFREE
355 xims.put (xim); 651 xims.put (xim);
356#endif 652# endif
357} 653}
654
358#endif 655#endif
359 656
360Atom rxvt_display::atom (const char *name) 657Atom rxvt_display::atom (const char *name)
361{ 658{
362 return XInternAtom (display, name, False); 659 return XInternAtom (dpy, name, False);
363} 660}
364 661
365///////////////////////////////////////////////////////////////////////////// 662/////////////////////////////////////////////////////////////////////////////
366 663
367template class refcache<rxvt_display>; 664template class refcache<rxvt_display>;
368refcache<rxvt_display> displays; 665refcache<rxvt_display> displays;
369 666
370///////////////////////////////////////////////////////////////////////////// 667/////////////////////////////////////////////////////////////////////////////
371 668//
669
670static unsigned int
671insert_component (unsigned int value, unsigned int mask, unsigned int shift)
672{
673 return (value * (mask + 1) >> 16) << shift;
674}
675
372bool 676bool
373rxvt_color::set (rxvt_display *display, Pixel p) 677rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
374{ 678{
679 //TODO: only supports 24 bit
680 int alpha = color.a >= 0xff00 ? 0xffff : color.a;
681
375#if XFT 682#if XFT
376 XColor xc; 683 XRenderPictFormat *format;
377 684
378 xc.pixel = p; 685 // FUCKING Xft gets it wrong, of course, so work around it.
379 if (!XQueryColor (display->display, display->cmap, &xc)) 686 // Transparency users should eat shit and die, and then
380 return false; 687 // XRenderQueryPictIndexValues themselves plenty.
688 if ((screen->visual->c_class == TrueColor)
689 && (format = XRenderFindVisualFormat (screen->dpy, screen->visual)))
690 {
691 // the fun lies in doing everything manually...
692 c.color.red = color.r;
693 c.color.green = color.g;
694 c.color.blue = color.b;
695 c.color.alpha = alpha;
381 696
697 c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red )
698 | insert_component (color.g, format->direct.greenMask, format->direct.green)
699 | insert_component (color.b, format->direct.blueMask , format->direct.blue )
700 | insert_component (alpha , format->direct.alphaMask, format->direct.alpha);
701
702 return true;
703 }
704 else
705 {
382 XRenderColor d; 706 XRenderColor d;
383 707
384 d.red = xc.red; 708 d.red = color.r;
385 d.green = xc.green; 709 d.green = color.g;
386 d.blue = xc.blue; 710 d.blue = color.b;
387 d.alpha = 0xffff; 711 d.alpha = alpha;
388 712
389 return 713 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
390 XftColorAllocValue (display->display, 714 }
391 display->visual,
392 display->cmap,
393 &d, &c);
394#else 715#else
395 this->p = p; 716 c.red = color.r;
396#endif 717 c.green = color.g;
718 c.blue = color.b;
397 719
720 if (screen->visual->c_class == TrueColor)
721 {
722 c.pixel = (color.r >> (16 - popcount (screen->visual->red_mask )) << ctz (screen->visual->red_mask ))
723 | (color.g >> (16 - popcount (screen->visual->green_mask)) << ctz (screen->visual->green_mask))
724 | (color.b >> (16 - popcount (screen->visual->blue_mask )) << ctz (screen->visual->blue_mask ));
725
726 return true;
727 }
728 else if (XAllocColor (screen->dpy, screen->cmap, &c))
398 return true; 729 return true;
730 else
731 c.pixel = (color.r + color.g + color.b) > 128*3
732 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
733 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
734#endif
735
736 return false;
399} 737}
400 738
401bool 739bool
402rxvt_color::set (rxvt_display *display, const char *name) 740rxvt_color::set (rxvt_screen *screen, const char *name)
741{
742 rgba c;
743 char eos;
744 int skip;
745
746 c.a = rgba::MAX_CC;
747
748 // parse the nonstandard "[alphapercent]" prefix
749 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
750 {
751 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
752 name += skip;
753 }
754
755 // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format
756 if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos))
757 {
758 XColor xc;
759
760 if (XParseColor (screen->dpy, screen->cmap, name, &xc))
761 {
762 c.r = xc.red;
763 c.g = xc.green;
764 c.b = xc.blue;
765 }
766 else
767 {
768 c.r = 0xffff;
769 c.g = 0x6969;
770 c.b = 0xb4b4;
771
772 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
773 }
774 }
775
776 return set (screen, c);
777}
778
779bool
780rxvt_color::set (rxvt_screen *screen, const rgba &color)
781{
782 bool got = alloc (screen, color);
783
784#if !ENABLE_MINIMAL
785 int cmap_size = screen->visual->map_entries;
786
787 if (!got
788 && screen->visual->c_class == PseudoColor
789 && cmap_size < 4096)
790 {
791 XColor *colors = new XColor [screen->visual->map_entries];
792
793 for (int i = 0; i < cmap_size; i++)
794 colors [i].pixel = i;
795
796 // many kilobytes transfer per colour, but pseudocolor isn't worth
797 // many extra optimisations.
798 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
799
800 int diff = 0x7fffffffUL;
801 XColor *best = colors;
802
803 for (int i = 0; i < cmap_size; i++)
804 {
805 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
806 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
807 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
808
809 if (d < diff)
810 {
811 diff = d;
812 best = colors + i;
813 }
814 }
815
816 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
817 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
818
819 got = alloc (screen, rgba (best->red, best->green, best->blue));
820
821 delete [] colors;
822 }
823#endif
824
825 return got;
826}
827
828void
829rxvt_color::get (rgba &color)
403{ 830{
404#if XFT 831#if XFT
405 return XftColorAllocName (display->display, display->visual, display->cmap, 832 color.r = c.color.red;
406 name, &c); 833 color.g = c.color.green;
834 color.b = c.color.blue;
835 color.a = c.color.alpha;
407#else 836#else
408 XColor xc; 837 color.r = c.red;
409 838 color.g = c.green;
410 if (XParseColor (display->display, display->cmap, name, &xc)) 839 color.b = c.blue;
411 return set (display, xc.red, xc.green, xc.blue); 840 color.a = rgba::MAX_CC;
412
413 return false;
414#endif 841#endif
415} 842}
416 843
417bool
418rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb)
419{
420 XColor xc;
421
422 xc.red = cr;
423 xc.green = cg;
424 xc.blue = cb;
425 xc.flags = DoRed | DoGreen | DoBlue;
426
427 if (XAllocColor (display->display, display->cmap, &xc))
428 return set (display, xc.pixel);
429
430 return false;
431}
432
433void 844void
434rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) 845rxvt_color::get (XColor &color)
435{ 846{
847 rgba c;
848 get (c);
849
850 color.red = c.r;
851 color.green = c.g;
852 color.blue = c.b;
853 color.pixel = (Pixel)*this;
854}
855
856void
857rxvt_color::free (rxvt_screen *screen)
858{
859 if (screen->visual->c_class == TrueColor)
860 return; // nothing to do
861
436#if XFT 862#if XFT
437 cr = c.color.red; 863 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
438 cg = c.color.green;
439 cb = c.color.blue;
440#else 864#else
441 XColor c; 865 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
442
443 c.pixel = p;
444 XQueryColor (display->display, display->cmap, &c);
445
446 cr = c.red;
447 cg = c.green;
448 cb = c.blue;
449#endif 866#endif
450} 867}
451 868
452void 869void
453rxvt_color::free (rxvt_display *display) 870rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
454{ 871{
455#if XFT 872 rgba c;
456 XftColorFree (display->display, display->visual, display->cmap, &c); 873 get (c);
457#else
458 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
459#endif
460}
461 874
462rxvt_color 875 result.set (
463rxvt_color::fade (rxvt_display *display, int percent) 876 screen,
464{ 877 rgba (
465 unsigned short cr, cg, cb; 878 lerp (c.r, to.r, percent),
466 rxvt_color faded; 879 lerp (c.g, to.g, percent),
880 lerp (c.b, to.b, percent),
881 lerp (c.a, to.a, percent)
882 )
883 );
884}
467 885
468 get (display, cr, cg, cb); 886#if TRACE_PIXMAPS
469 faded.set (display, 887# undef XCreatePixmap
470 cr * percent / 100, 888# undef XFreePixmap
471 cg * percent / 100, 889Pixmap trace_XCreatePixmap (const char *file, int line, Display *dpy, Window r, unsigned int w, unsigned int h, unsigned int d)
472 cb * percent / 100); 890{
473 891 Pixmap res = XCreatePixmap (dpy, r, w, h, d);
892 fprintf (stderr, "%s:%d: XCreatePixmap (%p,%lX,%u,%u,%u) returned %lX\n", file, line, dpy, r, w, h, d, res);
474 return faded; 893 return res;
475} 894}
476 895
896void trace_XFreePixmap (const char *file, int line, Display *dpy, Pixmap p)
897{
898 fprintf (stderr, "%s:%d: XFreePixmap (%p,%lX)\n", file, line, dpy, p);
899 XFreePixmap (dpy,p);
900}
901#endif

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