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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.5 by root, Tue Sep 7 12:34:05 2004 UTC vs.
Revision 1.89 by root, Wed Jan 23 09:23:39 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 {
… …
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)
… …
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
449 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
450 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
451
452 XrmSetDatabase (dpy, get_resources (false));
453
454#ifdef POINTER_BLANK
455 XColor blackcolour;
456 blackcolour.red = 0;
457 blackcolour.green = 0;
458 blackcolour.blue = 0;
459 Font f = XLoadFont (dpy, "fixed");
460 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
461 &blackcolour, &blackcolour);
462 XUnloadFont (dpy, f);
463#endif
464
159 int fd = XConnectionNumber (display); 465 int fd = XConnectionNumber (dpy);
160 466
161#ifndef NO_SLOW_LINK_SUPPORT
162 // try to detetc wether we have a local connection. 467 // try to detect wether we have a local connection.
163 // assume unix domains socket == local, everything else not 468 // assume unix domain socket == local, everything else not
164 // TODO: might want to check for inet/127.0.0.1 469 // TODO: might want to check for inet/127.0.0.1
165 is_local = 0; 470 is_local = 0;
166 sockaddr_un sa; 471 sockaddr_un sa;
167 socklen_t sl = sizeof (sa); 472 socklen_t sl = sizeof (sa);
168 473
169 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 474 if (!getsockname (fd, (sockaddr *)&sa, &sl))
170 is_local = sa.sun_family == AF_LOCAL; 475 is_local = sa.sun_family == AF_UNIX;
171#endif
172 476
173#ifdef PREFER_24BIT 477 flush_ev.start ();
174 /*
175 * If depth is not 24, look for a 24bit visual.
176 */
177 if (depth != 24)
178 {
179 XVisualInfo vinfo;
180
181 if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo))
182 {
183 depth = 24;
184 visual = vinfo.visual;
185 cmap = XCreateColormap (display,
186 RootWindow (display, screen),
187 visual, AllocNone);
188 }
189 }
190#endif
191
192 x_ev.start (fd, EVENT_READ); 478 x_ev.start (fd, ev::READ);
193 fcntl (fd, F_SETFD, FD_CLOEXEC); 479 fcntl (fd, F_SETFD, FD_CLOEXEC);
194 480
195 XSelectInput (display, root, PropertyChangeMask); 481 XSelectInput (dpy, root, PropertyChangeMask);
482
483 flush ();
484
485 return true;
486}
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
497rxvt_display::~rxvt_display ()
498{
499 if (!dpy)
500 return;
501
502#ifdef POINTER_BLANK
503 XFreeCursor (dpy, blank_cursor);
504#endif
505 x_ev.stop ();
506 flush_ev.stop ();
196#ifdef USE_XIM 507#ifdef USE_XIM
197 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0); 508 xims.clear ();
198#endif 509#endif
199
200 flush ();
201
202 return true;
203}
204
205rxvt_display::~rxvt_display ()
206{
207 x_ev.stop ();
208
209 if (display)
210 XCloseDisplay (display); 510 XCloseDisplay (dpy);
211} 511}
212 512
213#ifdef USE_XIM 513#ifdef USE_XIM
214void rxvt_display::im_change_cb () 514void rxvt_display::im_change_cb ()
215{ 515{
… …
217 (*i)->call (); 517 (*i)->call ();
218} 518}
219 519
220void rxvt_display::im_change_check () 520void rxvt_display::im_change_check ()
221{ 521{
222 // 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
223 // registers, as xlib crashes due to a race otherwise. 523 // registers, as xlib crashes due to a race otherwise.
224 Atom actual_type, *atoms; 524 Atom actual_type, *atoms;
225 int actual_format; 525 int actual_format;
226 unsigned long nitems, bytes_after; 526 unsigned long nitems, bytes_after;
227 527
228 if (XGetWindowProperty (display, root, xa_xim_servers, 0L, 1000000L, 528 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
229 False, XA_ATOM, &actual_type, &actual_format, 529 False, XA_ATOM, &actual_type, &actual_format,
230 &nitems, &bytes_after, (unsigned char **)&atoms) 530 &nitems, &bytes_after, (unsigned char **)&atoms)
231 != Success ) 531 != Success )
232 return; 532 return;
233 533
234 if (actual_type == XA_ATOM && actual_format == 32) 534 if (actual_type == XA_ATOM && actual_format == 32)
235 for (int i = 0; i < nitems; i++) 535 for (int i = 0; i < nitems; i++)
236 if (XGetSelectionOwner (display, atoms[i])) 536 if (XGetSelectionOwner (dpy, atoms[i]))
237 { 537 {
238 im_change_cb (); 538 im_change_cb ();
239 break; 539 break;
240 } 540 }
241 541
242 XFree (atoms); 542 XFree (atoms);
243} 543}
244#endif 544#endif
245 545
246void rxvt_display::x_cb (io_watcher &w, short revents) 546void rxvt_display::x_cb (ev::io &w, int revents)
247{ 547{
248 do 548 while (XEventsQueued (dpy, QueuedAfterReading))
249 { 549 {
250 XEvent xev; 550 XEvent xev;
251 XNextEvent (display, &xev); 551 XNextEvent (dpy, &xev);
252 552
253#ifdef USE_XIM 553#ifdef USE_XIM
254 if (!XFilterEvent (&xev, None)) 554 if (!XFilterEvent (&xev, None))
255 { 555 {
256
257 if (xev.type == PropertyNotify 556 if (xev.type == PropertyNotify
258 && xev.xany.window == root 557 && xev.xany.window == root
259 && xev.xproperty.atom == xa_xim_servers) 558 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
260 im_change_check (); 559 im_change_check ();
261#endif 560#endif
561 if (xev.type == MappingNotify)
562 XRefreshKeyboardMapping (&xev.xmapping);
563
262 for (int i = xw.size (); i--; ) 564 for (int i = xw.size (); i--; )
263 { 565 {
264 if (!xw[i]) 566 if (!xw[i])
265 xw.erase_unordered (i); 567 xw.erase_unordered (i);
266 else if (xw[i]->window == xev.xany.window) 568 else if (xw[i]->window == xev.xany.window)
… …
268 } 570 }
269#ifdef USE_XIM 571#ifdef USE_XIM
270 } 572 }
271#endif 573#endif
272 } 574 }
273 while (XPending (display)); 575}
274 576
577void rxvt_display::flush_cb (ev::prepare &w, int revents)
578{
579 w.stop ();
275 flush (); 580 XFlush (dpy);
276}
277
278void rxvt_display::flush ()
279{
280 for (;;)
281 {
282 if (!XPending (display))
283 break;
284
285 x_cb (x_ev, 0);
286 }
287} 581}
288 582
289void rxvt_display::reg (xevent_watcher *w) 583void rxvt_display::reg (xevent_watcher *w)
290{ 584{
585 if (!w->active)
586 {
291 xw.push_back (w); 587 xw.push_back (w);
292 w->active = xw.size (); 588 w->active = xw.size ();
589 }
293} 590}
294 591
295void rxvt_display::unreg (xevent_watcher *w) 592void rxvt_display::unreg (xevent_watcher *w)
296{ 593{
297 if (w->active) 594 if (w->active)
595 {
298 xw[w->active - 1] = 0; 596 xw[w->active - 1] = 0;
597 w->active = 0;
598 }
299} 599}
300 600
301void rxvt_display::set_selection_owner (rxvt_term *owner) 601void rxvt_display::set_selection_owner (rxvt_term *owner)
302{ 602{
303 if (selection_owner && selection_owner != owner) 603 if (selection_owner && selection_owner != owner)
604 {
605 rxvt_term *owner = selection_owner;
606
304 selection_owner->selection_clear (); 607 owner->selection_clear ();
608 owner->flush ();
609 }
305 610
306 selection_owner = owner; 611 selection_owner = owner;
307} 612}
308 613
309#ifdef USE_XIM 614#ifdef USE_XIM
615
310void rxvt_display::reg (im_watcher *w) 616void rxvt_display::reg (im_watcher *w)
311{ 617{
312 imw.push_back (w); 618 imw.push_back (w);
313} 619}
314 620
… …
338 return xim; 644 return xim;
339} 645}
340 646
341void rxvt_display::put_xim (rxvt_xim *xim) 647void rxvt_display::put_xim (rxvt_xim *xim)
342{ 648{
649# if XLIB_IS_RACEFREE
343 xims.put (xim); 650 xims.put (xim);
651# endif
344} 652}
653
345#endif 654#endif
346 655
347Atom rxvt_display::atom (const char *name) 656Atom rxvt_display::atom (const char *name)
348{ 657{
349 return XInternAtom (display, name, False); 658 return XInternAtom (dpy, name, False);
350} 659}
351 660
352///////////////////////////////////////////////////////////////////////////// 661/////////////////////////////////////////////////////////////////////////////
353 662
354template class refcache<rxvt_display>; 663template class refcache<rxvt_display>;
355refcache<rxvt_display> displays; 664refcache<rxvt_display> displays;
356 665
357///////////////////////////////////////////////////////////////////////////// 666/////////////////////////////////////////////////////////////////////////////
358 667//
668
669static unsigned int
670insert_component (unsigned int value, unsigned int mask, unsigned int shift)
671{
672 return (value * (mask + 1) >> 16) << shift;
673}
674
359bool 675bool
360rxvt_color::set (rxvt_display *display, Pixel p) 676rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
361{ 677{
678 //TODO: only supports 24 bit truecolour
679 int alpha = color.a >= 0xff00 ? 0xffff : color.a;
680
362#if XFT 681#if XFT
363 XColor xc; 682 XRenderPictFormat *format;
364 683
365 xc.pixel = p; 684 // FUCKING Xft gets it wrong, of course, so work around it.
366 if (!XQueryColor (display->display, display->cmap, &xc)) 685 // Transparency users should eat shit and die, and then
367 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 = alpha;
368 695
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 (alpha , format->direct.alphaMask, format->direct.alpha);
700
701 return true;
702 }
703 else
704 {
369 XRenderColor d; 705 XRenderColor d;
370 706
371 d.red = xc.red; 707 d.red = color.r;
372 d.green = xc.green; 708 d.green = color.g;
373 d.blue = xc.blue; 709 d.blue = color.b;
374 d.alpha = 0xffff; 710 d.alpha = alpha;
375 711
376 return 712 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
377 XftColorAllocValue (display->display, 713 }
378 display->visual,
379 display->cmap,
380 &d, &c);
381#else 714#else
382 this->p = p; 715 c.red = color.r;
383#endif 716 c.green = color.g;
717 c.blue = color.b;
384 718
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))
385 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;
386} 736}
387 737
388bool 738bool
389rxvt_color::set (rxvt_display *display, const char *name) 739rxvt_color::set (rxvt_screen *screen, const char *name)
390{ 740{
741 rgba c;
742 char eos;
743 int skip;
744
745 c.a = rgba::MAX_CC;
746
747 // parse the nonstandard "[alphapercent]" prefix
748 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
749 {
750 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
751 name += skip;
752 }
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 {
391 XColor xc; 757 XColor xc;
392 758
393 if (XParseColor (display->display, display->cmap, name, &xc)) 759 if (XParseColor (screen->dpy, screen->cmap, name, &xc))
394 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;
395 770
396 return false; 771 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
772 }
773 }
774
775 return set (screen, c);
397} 776}
398 777
399bool 778bool
400rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) 779rxvt_color::set (rxvt_screen *screen, const rgba &color)
401{ 780{
402 XColor xc; 781 bool got = alloc (screen, color);
403 782
404 xc.red = cr; 783#if !ENABLE_MINIMAL
405 xc.green = cg; 784 int cmap_size = screen->visual->map_entries;
406 xc.blue = cb;
407 xc.flags = DoRed | DoGreen | DoBlue;
408 785
409 if (XAllocColor (display->display, display->cmap, &xc)) 786 if (!got
410 return set (display, xc.pixel); 787 && screen->visual->c_class == PseudoColor
788 && cmap_size < 4096)
789 {
790 XColor *colors = new XColor [screen->visual->map_entries];
411 791
412 return false; 792 for (int i = 0; i < cmap_size; i++)
413} 793 colors [i].pixel = i;
414 794
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
415void 827void
416rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) 828rxvt_color::get (rgba &color)
417{ 829{
418#if XFT 830#if XFT
419 cr = c.color.red; 831 color.r = c.color.red;
420 cg = c.color.green; 832 color.g = c.color.green;
421 cb = c.color.blue; 833 color.b = c.color.blue;
834 color.a = c.color.alpha;
422#else 835#else
423 XColor c;
424
425 c.pixel = p;
426 XQueryColor (display->display, display->cmap, &c);
427
428 cr = c.red; 836 color.r = c.red;
429 cg = c.green; 837 color.g = c.green;
430 cb = c.blue; 838 color.b = c.blue;
839 color.a = rgba::MAX_CC;
431#endif 840#endif
432} 841}
433 842
434void 843void
435rxvt_color::free (rxvt_display *display) 844rxvt_color::get (XColor &color)
436{ 845{
846 rgba c;
847 get (c);
848
849 color.red = c.r;
850 color.green = c.g;
851 color.blue = c.b;
852 color.pixel = (Pixel)*this;
853}
854
855void
856rxvt_color::free (rxvt_screen *screen)
857{
858 if (screen->visual->c_class == TrueColor)
859 return; // nothing to do
860
437#if XFT 861#if XFT
438 XftColorFree (display->display, display->visual, display->cmap, &c); 862 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
439#else 863#else
440 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes); 864 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
441#endif 865#endif
442} 866}
443 867
444rxvt_color 868void
445rxvt_color::fade (rxvt_display *display, int percent) 869rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
446{ 870{
447 unsigned short cr, cg, cb; 871 rgba c;
448 rxvt_color faded; 872 get (c);
449 873
450 get (display, cr, cg, cb); 874 result.set (
451 faded.set (display, 875 screen,
452 cr * percent / 100, 876 rgba (
453 cg * percent / 100, 877 lerp (c.r, to.r, percent),
454 cb * percent / 100); 878 lerp (c.g, to.g, percent),
879 lerp (c.b, to.b, percent),
880 lerp (c.a, to.a, percent)
881 )
882 );
883}
455 884
885#if TRACE_PIXMAPS
886# undef XCreatePixmap
887# undef XFreePixmap
888Pixmap trace_XCreatePixmap (const char *file, int line, Display *dpy, Window r, unsigned int w, unsigned int h, unsigned int d)
889{
890 Pixmap res = XCreatePixmap (dpy, r, w, h, d);
891 fprintf (stderr, "%s:%d: XCreatePixmap (%p,%lX,%u,%u,%u) returned %lX\n", file, line, dpy, r, w, h, d, res);
456 return faded; 892 return res;
457} 893}
458 894
895void trace_XFreePixmap (const char *file, int line, Display *dpy, Pixmap p)
896{
897 fprintf (stderr, "%s:%d: XFreePixmap (%p,%lX)\n", file, line, dpy, p);
898 XFreePixmap (dpy,p);
899}
900#endif

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