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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.21 by root, Sun Jan 8 07:55:36 2006 UTC vs.
Revision 1.97 by root, Sat Jan 26 12:15:11 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{
148#ifdef LOCAL_X_IS_UNIX 427#ifdef LOCAL_X_IS_UNIX
149 if (id[0] == ':') 428 if (id[0] == ':')
150 { 429 {
151 val = rxvt_malloc (5 + strlen (id) + 1); 430 val = rxvt_malloc (5 + strlen (id) + 1);
152 strcpy (val, "unix/"); 431 strcpy (val, "unix/");
153 strcat (val, id); 432 strcat (val, id);
154 display = XOpenDisplay (val); 433 dpy = XOpenDisplay (val);
155 free (val); 434 free (val);
156 } 435 }
157 else 436 else
158#endif 437#endif
159 display = 0; 438 dpy = 0;
160 439
161 if (!display) 440 if (!dpy)
162 display = XOpenDisplay (id); 441 dpy = XOpenDisplay (id);
163 442
164 if (!display) 443 if (!dpy)
165 return false; 444 return false;
166 445
167 screen = DefaultScreen (display); 446 screen = DefaultScreen (dpy);
168 root = DefaultRootWindow (display); 447 root = DefaultRootWindow (dpy);
169 visual = DefaultVisual (display, screen);
170 cmap = DefaultColormap (display, screen);
171 depth = DefaultDepth (display, screen);
172 448
173 int fd = XConnectionNumber (display); 449 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
450 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
174 451
175#ifndef NO_SLOW_LINK_SUPPORT 452 XrmSetDatabase (dpy, get_resources (false));
176 // try to detect wether we have a local connection.
177 // assume unix domains socket == local, everything else not
178 // TODO: might want to check for inet/127.0.0.1
179 is_local = 0;
180 sockaddr_un sa;
181 socklen_t sl = sizeof (sa);
182
183 if (!getsockname (fd, (sockaddr *)&sa, &sl))
184 is_local = sa.sun_family == AF_LOCAL;
185#endif
186 453
187#ifdef POINTER_BLANK 454#ifdef POINTER_BLANK
188 XColor blackcolour; 455 XColor blackcolour;
189 blackcolour.red = 0; 456 blackcolour.red = 0;
190 blackcolour.green = 0; 457 blackcolour.green = 0;
191 blackcolour.blue = 0; 458 blackcolour.blue = 0;
192 Font f = XLoadFont (display, "fixed"); 459 Font f = XLoadFont (dpy, "fixed");
193 blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', 460 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
194 &blackcolour, &blackcolour); 461 &blackcolour, &blackcolour);
195 XUnloadFont (display, f); 462 XUnloadFont (dpy, f);
196#endif 463#endif
197 464
198#ifdef PREFER_24BIT 465 int fd = XConnectionNumber (dpy);
199 /*
200 * If depth is not 24, look for a 24bit visual.
201 */
202 if (depth != 24)
203 {
204 XVisualInfo vinfo;
205 466
206 if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo)) 467 // try to detect wether we have a local connection.
207 { 468 // assume unix domain socket == local, everything else not
208 depth = 24; 469 // TODO: might want to check for inet/127.0.0.1
209 visual = vinfo.visual; 470 is_local = 0;
210 cmap = XCreateColormap (display, 471 sockaddr_un sa;
211 RootWindow (display, screen), 472 socklen_t sl = sizeof (sa);
212 visual, AllocNone);
213 }
214 }
215#endif
216 473
474 if (!getsockname (fd, (sockaddr *)&sa, &sl))
475 is_local = sa.sun_family == AF_UNIX;
476
477 flush_ev.start ();
217 x_ev.start (fd, EVENT_READ); 478 x_ev.start (fd, ev::READ);
218 fcntl (fd, F_SETFD, FD_CLOEXEC); 479 fcntl (fd, F_SETFD, FD_CLOEXEC);
219 480
220 XSelectInput (display, root, PropertyChangeMask); 481 XSelectInput (dpy, root, PropertyChangeMask);
221#ifdef USE_XIM
222 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0);
223#endif
224 482
225 flush (); 483 flush ();
226 484
227 return true; 485 return true;
228} 486}
229 487
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
230rxvt_display::~rxvt_display () 497rxvt_display::~rxvt_display ()
231{ 498{
499 if (!dpy)
500 return;
501
232#ifdef POINTER_BLANK 502#ifdef POINTER_BLANK
233 XFreeCursor (display, blank_cursor); 503 XFreeCursor (dpy, blank_cursor);
234#endif 504#endif
235 x_ev.stop (); 505 x_ev.stop ();
506 flush_ev.stop ();
236#ifdef USE_XIM 507#ifdef USE_XIM
237 xims.clear (); 508 xims.clear ();
238#endif 509#endif
239
240 if (display)
241 XCloseDisplay (display); 510 XCloseDisplay (dpy);
242} 511}
243 512
244#ifdef USE_XIM 513#ifdef USE_XIM
245void rxvt_display::im_change_cb () 514void rxvt_display::im_change_cb ()
246{ 515{
… …
254 // registers, as xlib crashes due to a race otherwise. 523 // registers, as xlib crashes due to a race otherwise.
255 Atom actual_type, *atoms; 524 Atom actual_type, *atoms;
256 int actual_format; 525 int actual_format;
257 unsigned long nitems, bytes_after; 526 unsigned long nitems, bytes_after;
258 527
259 if (XGetWindowProperty (display, root, xa_xim_servers, 0L, 1000000L, 528 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
260 False, XA_ATOM, &actual_type, &actual_format, 529 False, XA_ATOM, &actual_type, &actual_format,
261 &nitems, &bytes_after, (unsigned char **)&atoms) 530 &nitems, &bytes_after, (unsigned char **)&atoms)
262 != Success ) 531 != Success )
263 return; 532 return;
264 533
265 if (actual_type == XA_ATOM && actual_format == 32) 534 if (actual_type == XA_ATOM && actual_format == 32)
266 for (int i = 0; i < nitems; i++) 535 for (int i = 0; i < nitems; i++)
267 if (XGetSelectionOwner (display, atoms[i])) 536 if (XGetSelectionOwner (dpy, atoms[i]))
268 { 537 {
269 im_change_cb (); 538 im_change_cb ();
270 break; 539 break;
271 } 540 }
272 541
273 XFree (atoms); 542 XFree (atoms);
274} 543}
275#endif 544#endif
276 545
277void rxvt_display::x_cb (io_watcher &w, short revents) 546void rxvt_display::x_cb (ev::io &w, int revents)
278{ 547{
279 do 548 while (XEventsQueued (dpy, QueuedAfterReading))
280 { 549 {
281 XEvent xev; 550 XEvent xev;
282 XNextEvent (display, &xev); 551 XNextEvent (dpy, &xev);
283 552
284#ifdef USE_XIM 553#ifdef USE_XIM
285 if (!XFilterEvent (&xev, None)) 554 if (!XFilterEvent (&xev, None))
555#endif
286 { 556 {
287 if (xev.type == PropertyNotify 557 if (xev.type == PropertyNotify
288 && xev.xany.window == root 558 && xev.xany.window == root
289 && xev.xproperty.atom == xa_xim_servers) 559 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
290 im_change_check (); 560 im_change_check ();
291#endif 561
562 if (xev.type == MappingNotify)
563 XRefreshKeyboardMapping (&xev.xmapping);
564
292 for (int i = xw.size (); i--; ) 565 for (int i = xw.size (); i--; )
293 { 566 {
294 if (!xw[i]) 567 if (!xw[i])
295 xw.erase_unordered (i); 568 xw.erase_unordered (i);
296 else if (xw[i]->window == xev.xany.window) 569 else if (xw[i]->window == xev.xany.window)
297 xw[i]->call (xev); 570 xw[i]->call (xev);
298 } 571 }
572 }
573 }
574}
575
576void rxvt_display::flush_cb (ev::prepare &w, int revents)
577{
578 while (XEventsQueued (dpy, QueuedAfterFlush))
579 {
580 x_cb(x_ev,0);//D
581 }
582
583 w.stop ();
584}
585
586void rxvt_display::reg (xevent_watcher *w)
587{
588 if (!w->active)
589 {
590 xw.push_back (w);
591 w->active = xw.size ();
592 }
593}
594
595void rxvt_display::unreg (xevent_watcher *w)
596{
597 if (w->active)
598 {
599 xw[w->active - 1] = 0;
600 w->active = 0;
601 }
602}
603
604void rxvt_display::set_selection_owner (rxvt_term *owner)
605{
606 if (selection_owner && selection_owner != owner)
607 {
608 rxvt_term *owner = selection_owner;
609
610 owner->selection_clear ();
611 owner->flush ();
612 }
613
614 selection_owner = owner;
615}
616
299#ifdef USE_XIM 617#ifdef USE_XIM
300 }
301#endif
302 }
303 while (XEventsQueued (display, QueuedAlready));
304 618
305 XFlush (display);
306}
307
308void rxvt_display::flush ()
309{
310 if (XEventsQueued (display, QueuedAlready))
311 x_cb (x_ev, EVENT_READ);
312
313 XFlush (display);
314}
315
316void rxvt_display::reg (xevent_watcher *w)
317{
318 xw.push_back (w);
319 w->active = xw.size ();
320}
321
322void rxvt_display::unreg (xevent_watcher *w)
323{
324 if (w->active)
325 xw[w->active - 1] = 0;
326}
327
328void rxvt_display::set_selection_owner (rxvt_term *owner)
329{
330 if (selection_owner && selection_owner != owner)
331 selection_owner->selection_clear ();
332
333 selection_owner = owner;
334}
335
336#ifdef USE_XIM
337void rxvt_display::reg (im_watcher *w) 619void rxvt_display::reg (im_watcher *w)
338{ 620{
339 imw.push_back (w); 621 imw.push_back (w);
340} 622}
341 623
… …
365 return xim; 647 return xim;
366} 648}
367 649
368void rxvt_display::put_xim (rxvt_xim *xim) 650void rxvt_display::put_xim (rxvt_xim *xim)
369{ 651{
370#if XLIB_IS_RACEFREE 652# if XLIB_IS_RACEFREE
371 xims.put (xim); 653 xims.put (xim);
372#endif 654# endif
373} 655}
656
374#endif 657#endif
375 658
376Atom rxvt_display::atom (const char *name) 659Atom rxvt_display::atom (const char *name)
377{ 660{
378 return XInternAtom (display, name, False); 661 return XInternAtom (dpy, name, False);
379} 662}
380 663
381///////////////////////////////////////////////////////////////////////////// 664/////////////////////////////////////////////////////////////////////////////
382 665
383template class refcache<rxvt_display>; 666template class refcache<rxvt_display>;
384refcache<rxvt_display> displays; 667refcache<rxvt_display> displays;
385 668
386///////////////////////////////////////////////////////////////////////////// 669/////////////////////////////////////////////////////////////////////////////
387 670//
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
388bool 678bool
389rxvt_color::set (rxvt_display *display, Pixel p) 679rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
390{ 680{
681 //TODO: only supports 24 bit
682 int alpha = color.a >= 0xff00 ? 0xffff : color.a;
683
391#if XFT 684#if XFT
392 XColor xc; 685 XRenderPictFormat *format;
393 686
394 xc.pixel = p; 687 // FUCKING Xft gets it wrong, of course, so work around it.
395 if (!XQueryColor (display->display, display->cmap, &xc)) 688 // Transparency users should eat shit and die, and then
396 return false; 689 // XRenderQueryPictIndexValues themselves plenty.
690 if ((screen->visual->c_class == TrueColor)
691 && (format = XRenderFindVisualFormat (screen->dpy, screen->visual)))
692 {
693 // the fun lies in doing everything manually...
694 c.color.red = color.r;
695 c.color.green = color.g;
696 c.color.blue = color.b;
697 c.color.alpha = alpha;
397 698
699 c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red )
700 | insert_component (color.g, format->direct.greenMask, format->direct.green)
701 | insert_component (color.b, format->direct.blueMask , format->direct.blue )
702 | insert_component (alpha , format->direct.alphaMask, format->direct.alpha);
703
704 return true;
705 }
706 else
707 {
398 XRenderColor d; 708 XRenderColor d;
399 709
400 d.red = xc.red; 710 d.red = color.r;
401 d.green = xc.green; 711 d.green = color.g;
402 d.blue = xc.blue; 712 d.blue = color.b;
403 d.alpha = 0xffff; 713 d.alpha = alpha;
404 714
405 return 715 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
406 XftColorAllocValue (display->display, 716 }
407 display->visual,
408 display->cmap,
409 &d, &c);
410#else 717#else
411 this->p = p; 718 c.red = color.r;
412#endif 719 c.green = color.g;
720 c.blue = color.b;
413 721
722 if (screen->visual->c_class == TrueColor)
723 {
724 c.pixel = (color.r >> (16 - popcount (screen->visual->red_mask )) << ctz (screen->visual->red_mask ))
725 | (color.g >> (16 - popcount (screen->visual->green_mask)) << ctz (screen->visual->green_mask))
726 | (color.b >> (16 - popcount (screen->visual->blue_mask )) << ctz (screen->visual->blue_mask ));
727
728 return true;
729 }
730 else if (XAllocColor (screen->dpy, screen->cmap, &c))
414 return true; 731 return true;
732 else
733 c.pixel = (color.r + color.g + color.b) > 128*3
734 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
735 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
736#endif
737
738 return false;
415} 739}
416 740
417bool 741bool
418rxvt_color::set (rxvt_display *display, const char *name) 742rxvt_color::set (rxvt_screen *screen, const char *name)
743{
744 rgba c;
745 char eos;
746 int skip;
747
748 c.a = rgba::MAX_CC;
749
750 // parse the nonstandard "[alphapercent]" prefix
751 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
752 {
753 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
754 name += skip;
755 }
756
757 // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format
758 if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos))
759 {
760 XColor xc;
761
762 if (XParseColor (screen->dpy, screen->cmap, name, &xc))
763 {
764 c.r = xc.red;
765 c.g = xc.green;
766 c.b = xc.blue;
767 }
768 else
769 {
770 c.r = 0xffff;
771 c.g = 0x6969;
772 c.b = 0xb4b4;
773
774 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
775 }
776 }
777
778 return set (screen, c);
779}
780
781bool
782rxvt_color::set (rxvt_screen *screen, const rgba &color)
783{
784 bool got = alloc (screen, color);
785
786#if !ENABLE_MINIMAL
787 int cmap_size = screen->visual->map_entries;
788
789 if (!got
790 && screen->visual->c_class == PseudoColor
791 && cmap_size < 4096)
792 {
793 XColor *colors = new XColor [screen->visual->map_entries];
794
795 for (int i = 0; i < cmap_size; i++)
796 colors [i].pixel = i;
797
798 // many kilobytes transfer per colour, but pseudocolor isn't worth
799 // many extra optimisations.
800 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
801
802 int diff = 0x7fffffffUL;
803 XColor *best = colors;
804
805 for (int i = 0; i < cmap_size; i++)
806 {
807 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
808 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
809 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
810
811 if (d < diff)
812 {
813 diff = d;
814 best = colors + i;
815 }
816 }
817
818 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
819 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
820
821 got = alloc (screen, rgba (best->red, best->green, best->blue));
822
823 delete [] colors;
824 }
825#endif
826
827 return got;
828}
829
830void
831rxvt_color::get (rgba &color)
419{ 832{
420#if XFT 833#if XFT
421 return XftColorAllocName (display->display, display->visual, display->cmap, 834 color.r = c.color.red;
422 name, &c); 835 color.g = c.color.green;
836 color.b = c.color.blue;
837 color.a = c.color.alpha;
423#else 838#else
424 XColor xc; 839 color.r = c.red;
425 840 color.g = c.green;
426 if (XParseColor (display->display, display->cmap, name, &xc)) 841 color.b = c.blue;
427 return set (display, xc.red, xc.green, xc.blue); 842 color.a = rgba::MAX_CC;
428
429 return false;
430#endif 843#endif
431} 844}
432 845
433bool
434rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb)
435{
436 XColor xc;
437
438 xc.red = cr;
439 xc.green = cg;
440 xc.blue = cb;
441 xc.flags = DoRed | DoGreen | DoBlue;
442
443 if (XAllocColor (display->display, display->cmap, &xc))
444 return set (display, xc.pixel);
445
446 return false;
447}
448
449void 846void
450rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) 847rxvt_color::get (XColor &color)
451{ 848{
849 rgba c;
850 get (c);
851
852 color.red = c.r;
853 color.green = c.g;
854 color.blue = c.b;
855 color.pixel = (Pixel)*this;
856}
857
858void
859rxvt_color::free (rxvt_screen *screen)
860{
861 if (screen->visual->c_class == TrueColor)
862 return; // nothing to do
863
452#if XFT 864#if XFT
453 cr = c.color.red; 865 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
454 cg = c.color.green;
455 cb = c.color.blue;
456#else 866#else
457 XColor c; 867 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
458
459 c.pixel = p;
460 XQueryColor (display->display, display->cmap, &c);
461
462 cr = c.red;
463 cg = c.green;
464 cb = c.blue;
465#endif 868#endif
466} 869}
467 870
468void 871void
469rxvt_color::free (rxvt_display *display) 872rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
470{ 873{
471#if XFT 874 rgba c;
472 XftColorFree (display->display, display->visual, display->cmap, &c); 875 get (c);
473#else
474 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
475#endif
476}
477 876
478rxvt_color 877 result.set (
479rxvt_color::fade (rxvt_display *display, int percent) 878 screen,
480{ 879 rgba (
481 percent = 100 - percent; 880 lerp (c.r, to.r, percent),
482 881 lerp (c.g, to.g, percent),
483 unsigned short cr, cg, cb; 882 lerp (c.b, to.b, percent),
484 rxvt_color faded; 883 lerp (c.a, to.a, percent)
485 884 )
486 get (display, cr, cg, cb);
487
488 faded.set (
489 display,
490 cr * percent / 100,
491 cg * percent / 100,
492 cb * percent / 100
493 ); 885 );
886}
494 887
888#if TRACE_PIXMAPS
889# undef XCreatePixmap
890# undef XFreePixmap
891Pixmap trace_XCreatePixmap (const char *file, int line, Display *dpy, Window r, unsigned int w, unsigned int h, unsigned int d)
892{
893 Pixmap res = XCreatePixmap (dpy, r, w, h, d);
894 fprintf (stderr, "%s:%d: XCreatePixmap (%p,%lX,%u,%u,%u) returned %lX\n", file, line, dpy, r, w, h, d, res);
495 return faded; 895 return res;
496} 896}
497 897
498#define LERP(a,b,p) (a * p + b * (100 - p)) / 100 898void trace_XFreePixmap (const char *file, int line, Display *dpy, Pixmap p)
499
500rxvt_color
501rxvt_color::fade (rxvt_display *display, int percent, rxvt_color &fadeto)
502{ 899{
503 percent = 100 - percent; 900 fprintf (stderr, "%s:%d: XFreePixmap (%p,%lX)\n", file, line, dpy, p);
504 901 XFreePixmap (dpy,p);
505 unsigned short cr, cg, cb;
506 unsigned short fcr, fcg, fcb;
507 rxvt_color faded;
508
509 get (display, cr, cg, cb);
510 fadeto.get(display, fcr, fcg, fcb);
511
512 faded.set (
513 display,
514 LERP (cr, fcr, percent),
515 LERP (cg, fcg, percent),
516 LERP (cb, fcb, percent)
517 );
518
519 return faded;
520} 902}
521 903#endif

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