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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 1.68 by root, Tue Jun 26 00:40:19 2007 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) 2003-2006 Marc Lehmann <pcg@goof.com>
7 * 7 *
8 * This program is free software; you can redistribute it and/or modify 8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by 9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version. 11 * (at your option) any later version.
… …
25#include <rxvttoolkit.h> 25#include <rxvttoolkit.h>
26 26
27#include <unistd.h> 27#include <unistd.h>
28#include <fcntl.h> 28#include <fcntl.h>
29 29
30#ifndef NO_SLOW_LINK_SUPPORT 30#include <sys/utsname.h>
31# include <sys/socket.h> 31#include <sys/socket.h>
32# include <sys/un.h> 32#include <sys/un.h>
33
34#if XFT
35# include <X11/extensions/Xrender.h>
36#endif
37
38const char *const xa_names[] =
39{
40 "TEXT",
41 "COMPOUND_TEXT",
42 "UTF8_STRING",
43 "MULTIPLE",
44 "TARGETS",
45 "TIMESTAMP",
46 "VT_SELECTION",
47 "INCR",
48 "WM_PROTOCOLS",
49 "WM_DELETE_WINDOW",
50 "CLIPBOARD",
51 "AVERAGE_WIDTH",
52 "WEIGHT_NAME",
53 "SLANT",
54 "CHARSET_REGISTRY",
55 "CHARSET_ENCODING",
56#if ENABLE_FRILLS
57 "_MOTIF_WM_HINTS",
58#endif
59#if ENABLE_EWMH
60 "_NET_WM_PID",
61 "_NET_WM_NAME",
62 "_NET_WM_ICON_NAME",
63 "_NET_WM_PING",
64#endif
65#if USE_XIM
66 "WM_LOCALE_NAME",
67 "XIM_SERVERS",
68#endif
69#ifdef ENABLE_TRANSPARENCY
70 "_XROOTPMAP_ID",
71 "ESETROOT_PMAP_ID",
72#endif
73#if ENABLE_XEMBED
74 "_XEMBED",
75 "_XEMBED_INFO",
76#endif
77#if !ENABLE_MINIMAL
78 "SCREEN_RESOURCES",
79 "XDCCC_LINEAR_RGB_CORRECTION",
80 "XDCCC_LINEAR_RGB_MATRICES",
81 "WM_COLORMAP_WINDOWS",
82 "WM_STATE",
83 "cursor",
84# if USE_XIM
85 "TRANSPORT",
86 "LOCALES",
87 "_XIM_PROTOCOL",
88 "_XIM_XCONNECT",
89 "_XIM_MOREDATA",
33#endif 90# endif
91#endif
92};
93
94/////////////////////////////////////////////////////////////////////////////
34 95
35refcounted::refcounted (const char *id) 96refcounted::refcounted (const char *id)
36{ 97{
37 this->id = strdup (id); 98 this->id = strdup (id);
38} 99}
… …
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, 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) 300, x_ev (this, &rxvt_display::x_cb)
142, selection_owner (0) 301, selection_owner (0)
143{ 302{
144} 303}
145 304
305XrmDatabase
306rxvt_display::get_resources (bool refresh)
307{
308 char *homedir = (char *)getenv ("HOME");
309 char fname[1024];
310
311 /*
312 * get resources using the X library function
313 */
314 char *displayResource, *xe;
315 XrmDatabase rdb1, database = 0;
316
317 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20
318 // as opposed to "standard practise", we always read in ~/.Xdefaults
319
320 // 6. System wide per application default file.
321
322 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */
323 if ((xe = (char *)getenv ("XAPPLRESDIR")))
324 {
325 snprintf (fname, sizeof (fname), "%s/%s", xe, RESCLASS);
326
327 if ((rdb1 = XrmGetFileDatabase (fname)))
328 XrmMergeDatabases (rdb1, &database);
329 }
330
331 // 5. User's per application default file.
332 // none
333
334 // 4. User's defaults file.
335 if (homedir)
336 {
337 snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir);
338
339 if ((rdb1 = XrmGetFileDatabase (fname)))
340 XrmMergeDatabases (rdb1, &database);
341 }
342
343 /* Get any Xserver defaults */
344 if (refresh)
345 {
346 // fucking xlib keeps a copy of the rm string
347 Atom actual_type;
348 int actual_format;
349 unsigned long nitems, nremaining;
350 char *val = 0;
351
352#if XLIB_ILLEGAL_ACCESS
353 if (dpy->xdefaults)
354 XFree (dpy->xdefaults);
355#endif
356
357 if (XGetWindowProperty (dpy, RootWindow (dpy, 0), XA_RESOURCE_MANAGER,
358 0L, 100000000L, False,
359 XA_STRING, &actual_type, &actual_format,
360 &nitems, &nremaining,
361 (unsigned char **)&val) == Success
362 && actual_type == XA_STRING
363 && actual_format == 8)
364 displayResource = val;
365 else
366 {
367 displayResource = 0;
368
369 if (val)
370 XFree(val);
371 }
372
373#if XLIB_ILLEGAL_ACCESS
374 dpy->xdefaults = displayResource;
375#endif
376 }
377 else
378 displayResource = XResourceManagerString (dpy);
379
380 if (displayResource)
381 {
382 if ((rdb1 = XrmGetStringDatabase (displayResource)))
383 XrmMergeDatabases (rdb1, &database);
384 }
385
386#if !XLIB_ILLEGAL_ACCESS
387 if (refresh && displayResource)
388 XFree (displayResource);
389#endif
390
391 /* Get screen specific resources */
392 displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen));
393
394 if (displayResource)
395 {
396 if ((rdb1 = XrmGetStringDatabase (displayResource)))
397 /* Merge with screen-independent resources */
398 XrmMergeDatabases (rdb1, &database);
399
400 XFree (displayResource);
401 }
402
403 // 3. User's per host defaults file
404 /* Add in XENVIRONMENT file */
405 if ((xe = (char *)getenv ("XENVIRONMENT"))
406 && (rdb1 = XrmGetFileDatabase (xe)))
407 XrmMergeDatabases (rdb1, &database);
408 else if (homedir)
409 {
410 struct utsname un;
411
412 if (!uname (&un))
413 {
414 snprintf (fname, sizeof (fname), "%s/.Xdefaults-%s", homedir, un.nodename);
415
416 if ((rdb1 = XrmGetFileDatabase (fname)))
417 XrmMergeDatabases (rdb1, &database);
418 }
419 }
420
421 return database;
422}
423
146bool rxvt_display::init () 424bool rxvt_display::ref_init ()
147{ 425{
426#ifdef LOCAL_X_IS_UNIX
427 if (id[0] == ':')
428 {
429 val = rxvt_malloc (5 + strlen (id) + 1);
430 strcpy (val, "unix/");
431 strcat (val, id);
432 dpy = XOpenDisplay (val);
433 free (val);
434 }
435 else
436#endif
437 dpy = 0;
438
439 if (!dpy)
148 display = XOpenDisplay (id); 440 dpy = XOpenDisplay (id);
149 441
150 if (!display) 442 if (!dpy)
151 return false; 443 return false;
152 444
153 screen = DefaultScreen (display); 445 screen = DefaultScreen (dpy);
154 root = DefaultRootWindow (display); 446 root = DefaultRootWindow (dpy);
155 visual = DefaultVisual (display, screen);
156 cmap = DefaultColormap (display, screen);
157 depth = DefaultDepth (display, screen);
158 447
448#ifdef HAVE_AFTERIMAGE
449 ::dpy = dpy; /* init global var from libAfter... */
450 asv = create_asvisual_for_id (dpy, screen, DefaultDepth (dpy,screen),
451 XVisualIDFromVisual (DefaultVisual (dpy, screen)), None, NULL);
452#endif
453
454 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
455 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
456
457 XrmSetDatabase (dpy, get_resources (false));
458
459#ifdef POINTER_BLANK
460 XColor blackcolour;
461 blackcolour.red = 0;
462 blackcolour.green = 0;
463 blackcolour.blue = 0;
464 Font f = XLoadFont (dpy, "fixed");
465 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
466 &blackcolour, &blackcolour);
467 XUnloadFont (dpy, f);
468#endif
469
159 int fd = XConnectionNumber (display); 470 int fd = XConnectionNumber (dpy);
160 471
161#ifndef NO_SLOW_LINK_SUPPORT
162 // try to detetc wether we have a local connection. 472 // try to detect wether we have a local connection.
163 // assume unix domains socket == local, everything else not 473 // assume unix domains socket == local, everything else not
164 // TODO: might want to check for inet/127.0.0.1 474 // TODO: might want to check for inet/127.0.0.1
165 is_local = 0; 475 is_local = 0;
166 sockaddr_un sa; 476 sockaddr_un sa;
167 socklen_t sl = sizeof (sa); 477 socklen_t sl = sizeof (sa);
168 478
169 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 479 if (!getsockname (fd, (sockaddr *)&sa, &sl))
170 is_local = sa.sun_family == AF_LOCAL; 480 is_local = sa.sun_family == AF_UNIX;
171#endif
172
173#ifdef POINTER_BLANK
174 XColor blackcolour;
175 blackcolour.red = 0;
176 blackcolour.green = 0;
177 blackcolour.blue = 0;
178 Font f = XLoadFont (display, "fixed");
179 blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ',
180 &blackcolour, &blackcolour);
181 XUnloadFont (display, f);
182#endif
183
184#ifdef PREFER_24BIT
185 /*
186 * If depth is not 24, look for a 24bit visual.
187 */
188 if (depth != 24)
189 {
190 XVisualInfo vinfo;
191
192 if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo))
193 {
194 depth = 24;
195 visual = vinfo.visual;
196 cmap = XCreateColormap (display,
197 RootWindow (display, screen),
198 visual, AllocNone);
199 }
200 }
201#endif
202 481
203 x_ev.start (fd, EVENT_READ); 482 x_ev.start (fd, EVENT_READ);
204 fcntl (fd, F_SETFD, FD_CLOEXEC); 483 fcntl (fd, F_SETFD, FD_CLOEXEC);
205 484
206 XSelectInput (display, root, PropertyChangeMask); 485 XSelectInput (dpy, root, PropertyChangeMask);
207#ifdef USE_XIM
208 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0);
209#endif
210 486
211 flush (); 487 flush ();
212 488
213 return true; 489 return true;
214} 490}
215 491
492void
493rxvt_display::ref_next ()
494{
495 // TODO: somehow check wether the database files/resources changed
496 // before affording re-loading/parsing
497 XrmDestroyDatabase (XrmGetDatabase (dpy));
498 XrmSetDatabase (dpy, get_resources (true));
499}
500
216rxvt_display::~rxvt_display () 501rxvt_display::~rxvt_display ()
217{ 502{
503 if (!dpy)
504 return;
505
506#ifdef POINTER_BLANK
507 XFreeCursor (dpy, blank_cursor);
508#endif
218 x_ev.stop (); 509 x_ev.stop ();
219#ifdef USE_XIM 510#ifdef USE_XIM
220 xims.clear (); 511 xims.clear ();
221#endif 512#endif
222
223 if (display)
224 XCloseDisplay (display); 513 XCloseDisplay (dpy);
225} 514}
226 515
227#ifdef USE_XIM 516#ifdef USE_XIM
228void rxvt_display::im_change_cb () 517void rxvt_display::im_change_cb ()
229{ 518{
… …
231 (*i)->call (); 520 (*i)->call ();
232} 521}
233 522
234void rxvt_display::im_change_check () 523void rxvt_display::im_change_check ()
235{ 524{
236 // make sure we only call im_change_cb when a new input method 525 // try to only call im_change_cb when a new input method
237 // registers, as xlib crashes due to a race otherwise. 526 // registers, as xlib crashes due to a race otherwise.
238 Atom actual_type, *atoms; 527 Atom actual_type, *atoms;
239 int actual_format; 528 int actual_format;
240 unsigned long nitems, bytes_after; 529 unsigned long nitems, bytes_after;
241 530
242 if (XGetWindowProperty (display, root, xa_xim_servers, 0L, 1000000L, 531 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
243 False, XA_ATOM, &actual_type, &actual_format, 532 False, XA_ATOM, &actual_type, &actual_format,
244 &nitems, &bytes_after, (unsigned char **)&atoms) 533 &nitems, &bytes_after, (unsigned char **)&atoms)
245 != Success ) 534 != Success )
246 return; 535 return;
247 536
248 if (actual_type == XA_ATOM && actual_format == 32) 537 if (actual_type == XA_ATOM && actual_format == 32)
249 for (int i = 0; i < nitems; i++) 538 for (int i = 0; i < nitems; i++)
250 if (XGetSelectionOwner (display, atoms[i])) 539 if (XGetSelectionOwner (dpy, atoms[i]))
251 { 540 {
252 im_change_cb (); 541 im_change_cb ();
253 break; 542 break;
254 } 543 }
255 544
… …
260void rxvt_display::x_cb (io_watcher &w, short revents) 549void rxvt_display::x_cb (io_watcher &w, short revents)
261{ 550{
262 do 551 do
263 { 552 {
264 XEvent xev; 553 XEvent xev;
265 XNextEvent (display, &xev); 554 XNextEvent (dpy, &xev);
266 555
267#ifdef USE_XIM 556#ifdef USE_XIM
268 if (!XFilterEvent (&xev, None)) 557 if (!XFilterEvent (&xev, None))
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#endif
276 for (int i = xw.size (); i--; ) 564 for (int i = xw.size (); i--; )
277 { 565 {
278 if (!xw[i]) 566 if (!xw[i])
… …
282 } 570 }
283#ifdef USE_XIM 571#ifdef USE_XIM
284 } 572 }
285#endif 573#endif
286 } 574 }
287 while (XEventsQueued (display, QueuedAlready)); 575 while (XEventsQueued (dpy, QueuedAlready));
288 576
289 XFlush (display); 577 XFlush (dpy);
290} 578}
291 579
292void rxvt_display::flush () 580void rxvt_display::flush ()
293{ 581{
294 if (XEventsQueued (display, QueuedAlready)) 582 if (XEventsQueued (dpy, QueuedAlready))
295 x_cb (x_ev, EVENT_READ); 583 x_cb (x_ev, EVENT_READ);
296 584
297 XFlush (display); 585 XFlush (dpy);
298} 586}
299 587
300void rxvt_display::reg (xevent_watcher *w) 588void rxvt_display::reg (xevent_watcher *w)
301{ 589{
590 if (!w->active)
591 {
302 xw.push_back (w); 592 xw.push_back (w);
303 w->active = xw.size (); 593 w->active = xw.size ();
594 }
304} 595}
305 596
306void rxvt_display::unreg (xevent_watcher *w) 597void rxvt_display::unreg (xevent_watcher *w)
307{ 598{
308 if (w->active) 599 if (w->active)
600 {
309 xw[w->active - 1] = 0; 601 xw[w->active - 1] = 0;
602 w->active = 0;
603 }
310} 604}
311 605
312void rxvt_display::set_selection_owner (rxvt_term *owner) 606void rxvt_display::set_selection_owner (rxvt_term *owner)
313{ 607{
314 if (selection_owner && selection_owner != owner) 608 if (selection_owner && selection_owner != owner)
… …
316 610
317 selection_owner = owner; 611 selection_owner = owner;
318} 612}
319 613
320#ifdef USE_XIM 614#ifdef USE_XIM
615
321void rxvt_display::reg (im_watcher *w) 616void rxvt_display::reg (im_watcher *w)
322{ 617{
323 imw.push_back (w); 618 imw.push_back (w);
324} 619}
325 620
… …
349 return xim; 644 return xim;
350} 645}
351 646
352void rxvt_display::put_xim (rxvt_xim *xim) 647void rxvt_display::put_xim (rxvt_xim *xim)
353{ 648{
354#if XLIB_IS_RACEFREE 649# if XLIB_IS_RACEFREE
355 xims.put (xim); 650 xims.put (xim);
356#endif 651# endif
357} 652}
653
358#endif 654#endif
359 655
360Atom rxvt_display::atom (const char *name) 656Atom rxvt_display::atom (const char *name)
361{ 657{
362 return XInternAtom (display, name, False); 658 return XInternAtom (dpy, name, False);
363} 659}
364 660
365///////////////////////////////////////////////////////////////////////////// 661/////////////////////////////////////////////////////////////////////////////
366 662
367template class refcache<rxvt_display>; 663template class refcache<rxvt_display>;
368refcache<rxvt_display> displays; 664refcache<rxvt_display> displays;
369 665
370///////////////////////////////////////////////////////////////////////////// 666/////////////////////////////////////////////////////////////////////////////
371 667//
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
372bool 675bool
373rxvt_color::set (rxvt_display *display, Pixel p) 676rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
374{ 677{
375#if XFT 678#if XFT
376 XColor xc; 679 XRenderPictFormat *format;
377 680
378 xc.pixel = p; 681 // FUCKING Xft gets it wrong, of course, so work around it.
379 if (!XQueryColor (display->display, display->cmap, &xc)) 682 // Transparency users should eat shit and die, and then
380 return false; 683 // XRenderQueryPictIndexValues themselves plenty.
684 if ((screen->visual->c_class == TrueColor)
685 && (format = XRenderFindVisualFormat (screen->dpy, screen->visual)))
686 {
687 // the fun lies in doing everything manually...
688 c.color.red = color.r;
689 c.color.green = color.g;
690 c.color.blue = color.b;
691 c.color.alpha = color.a;
381 692
693 c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red )
694 | insert_component (color.g, format->direct.greenMask, format->direct.green)
695 | insert_component (color.b, format->direct.blueMask , format->direct.blue )
696 | insert_component (color.a, format->direct.alphaMask, format->direct.alpha);
697
698 return true;
699 }
700 else
701 {
382 XRenderColor d; 702 XRenderColor d;
383 703
384 d.red = xc.red; 704 d.red = color.r;
385 d.green = xc.green; 705 d.green = color.g;
386 d.blue = xc.blue; 706 d.blue = color.b;
387 d.alpha = 0xffff; 707 d.alpha = color.a;
388 708
389 return 709 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
390 XftColorAllocValue (display->display, 710 }
391 display->visual,
392 display->cmap,
393 &d, &c);
394#else 711#else
395 this->p = p; 712 c.red = color.r;
396#endif 713 c.green = color.g;
714 c.blue = color.b;
397 715
716 if (screen->visual->c_class == TrueColor)
717 {
718 c.pixel = (color.r >> (16 - popcount (screen->visual->red_mask )) << ctz (screen->visual->red_mask ))
719 | (color.g >> (16 - popcount (screen->visual->green_mask)) << ctz (screen->visual->green_mask))
720 | (color.b >> (16 - popcount (screen->visual->blue_mask )) << ctz (screen->visual->blue_mask ));
721
722 return true;
723 }
724 else if (XAllocColor (screen->dpy, screen->cmap, &c))
398 return true; 725 return true;
726 else
727 c.pixel = (color.r + color.g + color.b) > 128*3
728 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
729 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
730#endif
731
732 return false;
399} 733}
400 734
401bool 735bool
402rxvt_color::set (rxvt_display *display, const char *name) 736rxvt_color::set (rxvt_screen *screen, const char *name)
737{
738 rgba c;
739 char eos;
740 int skip;
741
742 // parse the nonstandard "[alphapercent]" prefix
743 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
744 {
745 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
746 name += skip;
747 }
748 else
749 c.a = rgba::MAX_CC;
750
751 // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format
752 if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos))
753 {
754 XColor xc, xc_exact;
755
756 if (XParseColor (screen->dpy, screen->cmap, name, &xc))
757 {
758 c.r = xc.red;
759 c.g = xc.green;
760 c.b = xc.blue;
761 }
762 else
763 {
764 c.r = 0xffff;
765 c.g = 0x6969;
766 c.b = 0xb4b4;
767
768 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
769 }
770 }
771
772 return set (screen, c);
773}
774
775bool
776rxvt_color::set (rxvt_screen *screen, const rgba &color)
777{
778 bool got = alloc (screen, color);
779
780#if !ENABLE_MINIMAL
781 int cmap_size = screen->visual->map_entries;
782
783 if (!got
784 && screen->visual->c_class == PseudoColor
785 && cmap_size < 4096)
786 {
787 XColor *colors = new XColor [screen->visual->map_entries];
788
789 for (int i = 0; i < cmap_size; i++)
790 colors [i].pixel = i;
791
792 // many kilobytes transfer per colour, but pseudocolor isn't worth
793 // many extra optimisations.
794 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
795
796 int diff = 0x7fffffffUL;
797 XColor *best = colors;
798
799 for (int i = 0; i < cmap_size; i++)
800 {
801 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
802 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
803 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
804
805 if (d < diff)
806 {
807 diff = d;
808 best = colors + i;
809 }
810 }
811
812 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
813 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
814
815 got = alloc (screen, rgba (best->red, best->green, best->blue));
816
817 delete [] colors;
818 }
819#endif
820
821 return got;
822}
823
824void
825rxvt_color::get (rgba &color)
403{ 826{
404#if XFT 827#if XFT
405 return XftColorAllocName (display->display, display->visual, display->cmap, 828 color.r = c.color.red;
406 name, &c); 829 color.g = c.color.green;
830 color.b = c.color.blue;
831 color.a = c.color.alpha;
407#else 832#else
408 XColor xc; 833 color.r = c.red;
409 834 color.g = c.green;
410 if (XParseColor (display->display, display->cmap, name, &xc)) 835 color.b = c.blue;
411 return set (display, xc.red, xc.green, xc.blue); 836 color.a = rgba::MAX_CC;
412
413 return false;
414#endif 837#endif
415} 838}
416 839
417bool 840void
418rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) 841rxvt_color::get (XColor &color)
419{ 842{
420 XColor xc; 843 rgba c;
844 get (c);
421 845
422 xc.red = cr; 846 color.red = c.r;
423 xc.green = cg; 847 color.green = c.g;
424 xc.blue = cb; 848 color.blue = c.b;
425 xc.flags = DoRed | DoGreen | DoBlue; 849 color.pixel = (Pixel)*this;
426
427 if (XAllocColor (display->display, display->cmap, &xc))
428 return set (display, xc.pixel);
429
430 return false;
431} 850}
432 851
433void 852void
434rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) 853rxvt_color::free (rxvt_screen *screen)
435{ 854{
855 if (screen->visual->c_class == TrueColor)
856 return; // nothing to do
857
436#if XFT 858#if XFT
437 cr = c.color.red; 859 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
438 cg = c.color.green;
439 cb = c.color.blue;
440#else 860#else
441 XColor c; 861 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 862#endif
450} 863}
451 864
452void 865void
453rxvt_color::free (rxvt_display *display) 866rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
454{ 867{
455#if XFT 868 rgba c;
456 XftColorFree (display->display, display->visual, display->cmap, &c); 869 get (c);
457#else
458 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
459#endif
460}
461 870
462rxvt_color 871 result.set (
463rxvt_color::fade (rxvt_display *display, int percent) 872 screen,
464{ 873 rgba (
465 unsigned short cr, cg, cb; 874 lerp (c.r, to.r, percent),
466 rxvt_color faded; 875 lerp (c.g, to.g, percent),
467 876 lerp (c.b, to.b, percent),
468 get (display, cr, cg, cb); 877 lerp (c.a, to.a, percent)
469 faded.set (display, 878 )
470 cr * percent / 100, 879 );
471 cg * percent / 100,
472 cb * percent / 100);
473
474 return faded;
475} 880}
476 881

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