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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.20 by root, Fri Jan 6 02:11:15 2006 UTC vs.
Revision 1.65 by sasha, Fri Jun 8 20:04:12 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 TRANSPARENT
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{
148#ifdef LOCAL_X_IS_UNIX 426#ifdef LOCAL_X_IS_UNIX
149 if (id[0] == ':') 427 if (id[0] == ':')
150 { 428 {
151 val = rxvt_malloc (5 + strlen (id) + 1); 429 val = rxvt_malloc (5 + strlen (id) + 1);
152 strcpy (val, "unix/"); 430 strcpy (val, "unix/");
153 strcat (val, id); 431 strcat (val, id);
154 display = XOpenDisplay (val); 432 dpy = XOpenDisplay (val);
155 free (val); 433 free (val);
156 } 434 }
157 else 435 else
158#endif 436#endif
159 display = 0; 437 dpy = 0;
160 438
161 if (!display) 439 if (!dpy)
162 display = XOpenDisplay (id); 440 dpy = XOpenDisplay (id);
163 441
164 if (!display) 442 if (!dpy)
165 return false; 443 return false;
166 444
167 screen = DefaultScreen (display); 445 screen = DefaultScreen (dpy);
168 root = DefaultRootWindow (display); 446 root = DefaultRootWindow (dpy);
169 visual = DefaultVisual (display, screen);
170 cmap = DefaultColormap (display, screen);
171 depth = DefaultDepth (display, screen);
172 447
448#ifdef HAVE_AFTERIMAGE
449 ::dpy = dpy; /* init global var from libAfter... */
450 asv = create_asvisual_for_id( dpy, screen, DefaultDepth(dpy,screen), XVisualIDFromVisual(DefaultVisual(dpy,screen)), None, NULL );
451#endif
452
453 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
454 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
455
456 XrmSetDatabase (dpy, get_resources (false));
457
458#ifdef POINTER_BLANK
459 XColor blackcolour;
460 blackcolour.red = 0;
461 blackcolour.green = 0;
462 blackcolour.blue = 0;
463 Font f = XLoadFont (dpy, "fixed");
464 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
465 &blackcolour, &blackcolour);
466 XUnloadFont (dpy, f);
467#endif
468
173 int fd = XConnectionNumber (display); 469 int fd = XConnectionNumber (dpy);
174 470
175#ifndef NO_SLOW_LINK_SUPPORT
176 // try to detect wether we have a local connection. 471 // try to detect wether we have a local connection.
177 // assume unix domains socket == local, everything else not 472 // assume unix domains socket == local, everything else not
178 // TODO: might want to check for inet/127.0.0.1 473 // TODO: might want to check for inet/127.0.0.1
179 is_local = 0; 474 is_local = 0;
180 sockaddr_un sa; 475 sockaddr_un sa;
181 socklen_t sl = sizeof (sa); 476 socklen_t sl = sizeof (sa);
182 477
183 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 478 if (!getsockname (fd, (sockaddr *)&sa, &sl))
184 is_local = sa.sun_family == AF_LOCAL; 479 is_local = sa.sun_family == AF_LOCAL;
185#endif
186
187#ifdef POINTER_BLANK
188 XColor blackcolour;
189 blackcolour.red = 0;
190 blackcolour.green = 0;
191 blackcolour.blue = 0;
192 Font f = XLoadFont (display, "fixed");
193 blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ',
194 &blackcolour, &blackcolour);
195 XUnloadFont (display, f);
196#endif
197
198#ifdef PREFER_24BIT
199 /*
200 * If depth is not 24, look for a 24bit visual.
201 */
202 if (depth != 24)
203 {
204 XVisualInfo vinfo;
205
206 if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo))
207 {
208 depth = 24;
209 visual = vinfo.visual;
210 cmap = XCreateColormap (display,
211 RootWindow (display, screen),
212 visual, AllocNone);
213 }
214 }
215#endif
216 480
217 x_ev.start (fd, EVENT_READ); 481 x_ev.start (fd, EVENT_READ);
218 fcntl (fd, F_SETFD, FD_CLOEXEC); 482 fcntl (fd, F_SETFD, FD_CLOEXEC);
219 483
220 XSelectInput (display, root, PropertyChangeMask); 484 XSelectInput (dpy, root, PropertyChangeMask);
221#ifdef USE_XIM
222 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0);
223#endif
224 485
225 flush (); 486 flush ();
226 487
227 return true; 488 return true;
228} 489}
229 490
491void
492rxvt_display::ref_next ()
493{
494 // TODO: somehow check wether the database files/resources changed
495 // before affording re-loading/parsing
496 XrmDestroyDatabase (XrmGetDatabase (dpy));
497 XrmSetDatabase (dpy, get_resources (true));
498}
499
230rxvt_display::~rxvt_display () 500rxvt_display::~rxvt_display ()
231{ 501{
502 if (!dpy)
503 return;
504
505#ifdef POINTER_BLANK
506 XFreeCursor (dpy, blank_cursor);
507#endif
232 x_ev.stop (); 508 x_ev.stop ();
233#ifdef USE_XIM 509#ifdef USE_XIM
234 xims.clear (); 510 xims.clear ();
235#endif 511#endif
236
237 if (display)
238 XCloseDisplay (display); 512 XCloseDisplay (dpy);
239} 513}
240 514
241#ifdef USE_XIM 515#ifdef USE_XIM
242void rxvt_display::im_change_cb () 516void rxvt_display::im_change_cb ()
243{ 517{
… …
251 // registers, as xlib crashes due to a race otherwise. 525 // registers, as xlib crashes due to a race otherwise.
252 Atom actual_type, *atoms; 526 Atom actual_type, *atoms;
253 int actual_format; 527 int actual_format;
254 unsigned long nitems, bytes_after; 528 unsigned long nitems, bytes_after;
255 529
256 if (XGetWindowProperty (display, root, xa_xim_servers, 0L, 1000000L, 530 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
257 False, XA_ATOM, &actual_type, &actual_format, 531 False, XA_ATOM, &actual_type, &actual_format,
258 &nitems, &bytes_after, (unsigned char **)&atoms) 532 &nitems, &bytes_after, (unsigned char **)&atoms)
259 != Success ) 533 != Success )
260 return; 534 return;
261 535
262 if (actual_type == XA_ATOM && actual_format == 32) 536 if (actual_type == XA_ATOM && actual_format == 32)
263 for (int i = 0; i < nitems; i++) 537 for (int i = 0; i < nitems; i++)
264 if (XGetSelectionOwner (display, atoms[i])) 538 if (XGetSelectionOwner (dpy, atoms[i]))
265 { 539 {
266 im_change_cb (); 540 im_change_cb ();
267 break; 541 break;
268 } 542 }
269 543
… …
274void rxvt_display::x_cb (io_watcher &w, short revents) 548void rxvt_display::x_cb (io_watcher &w, short revents)
275{ 549{
276 do 550 do
277 { 551 {
278 XEvent xev; 552 XEvent xev;
279 XNextEvent (display, &xev); 553 XNextEvent (dpy, &xev);
280 554
281#ifdef USE_XIM 555#ifdef USE_XIM
282 if (!XFilterEvent (&xev, None)) 556 if (!XFilterEvent (&xev, None))
283 { 557 {
284 if (xev.type == PropertyNotify 558 if (xev.type == PropertyNotify
285 && xev.xany.window == root 559 && xev.xany.window == root
286 && xev.xproperty.atom == xa_xim_servers) 560 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
287 im_change_check (); 561 im_change_check ();
288#endif 562#endif
289 for (int i = xw.size (); i--; ) 563 for (int i = xw.size (); i--; )
290 { 564 {
291 if (!xw[i]) 565 if (!xw[i])
… …
295 } 569 }
296#ifdef USE_XIM 570#ifdef USE_XIM
297 } 571 }
298#endif 572#endif
299 } 573 }
300 while (XEventsQueued (display, QueuedAlready)); 574 while (XEventsQueued (dpy, QueuedAlready));
301 575
302 XFlush (display); 576 XFlush (dpy);
303} 577}
304 578
305void rxvt_display::flush () 579void rxvt_display::flush ()
306{ 580{
307 if (XEventsQueued (display, QueuedAlready)) 581 if (XEventsQueued (dpy, QueuedAlready))
308 x_cb (x_ev, EVENT_READ); 582 x_cb (x_ev, EVENT_READ);
309 583
310 XFlush (display); 584 XFlush (dpy);
311} 585}
312 586
313void rxvt_display::reg (xevent_watcher *w) 587void rxvt_display::reg (xevent_watcher *w)
314{ 588{
589 if (!w->active)
590 {
315 xw.push_back (w); 591 xw.push_back (w);
316 w->active = xw.size (); 592 w->active = xw.size ();
593 }
317} 594}
318 595
319void rxvt_display::unreg (xevent_watcher *w) 596void rxvt_display::unreg (xevent_watcher *w)
320{ 597{
321 if (w->active) 598 if (w->active)
599 {
322 xw[w->active - 1] = 0; 600 xw[w->active - 1] = 0;
601 w->active = 0;
602 }
323} 603}
324 604
325void rxvt_display::set_selection_owner (rxvt_term *owner) 605void rxvt_display::set_selection_owner (rxvt_term *owner)
326{ 606{
327 if (selection_owner && selection_owner != owner) 607 if (selection_owner && selection_owner != owner)
… …
329 609
330 selection_owner = owner; 610 selection_owner = owner;
331} 611}
332 612
333#ifdef USE_XIM 613#ifdef USE_XIM
614
334void rxvt_display::reg (im_watcher *w) 615void rxvt_display::reg (im_watcher *w)
335{ 616{
336 imw.push_back (w); 617 imw.push_back (w);
337} 618}
338 619
… …
362 return xim; 643 return xim;
363} 644}
364 645
365void rxvt_display::put_xim (rxvt_xim *xim) 646void rxvt_display::put_xim (rxvt_xim *xim)
366{ 647{
367#if XLIB_IS_RACEFREE 648# if XLIB_IS_RACEFREE
368 xims.put (xim); 649 xims.put (xim);
369#endif 650# endif
370} 651}
652
371#endif 653#endif
372 654
373Atom rxvt_display::atom (const char *name) 655Atom rxvt_display::atom (const char *name)
374{ 656{
375 return XInternAtom (display, name, False); 657 return XInternAtom (dpy, name, False);
376} 658}
377 659
378///////////////////////////////////////////////////////////////////////////// 660/////////////////////////////////////////////////////////////////////////////
379 661
380template class refcache<rxvt_display>; 662template class refcache<rxvt_display>;
381refcache<rxvt_display> displays; 663refcache<rxvt_display> displays;
382 664
383///////////////////////////////////////////////////////////////////////////// 665/////////////////////////////////////////////////////////////////////////////
384 666//
667
668static unsigned int
669insert_component (unsigned int value, unsigned int mask, unsigned int shift)
670{
671 return (value * (mask + 1) >> 16) << shift;
672}
673
385bool 674bool
386rxvt_color::set (rxvt_display *display, Pixel p) 675rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
387{ 676{
388#if XFT 677#if XFT
389 XColor xc; 678 XRenderPictFormat *format;
390 679
391 xc.pixel = p; 680 // FUCKING Xft gets it wrong, of course, so work around it.
392 if (!XQueryColor (display->display, display->cmap, &xc)) 681 // Transparency users should eat shit and die, and then
393 return false; 682 // XRenderQueryPictIndexValues themselves plenty.
683 if ((screen->visual->c_class == TrueColor)
684 && (format = XRenderFindVisualFormat (screen->dpy, screen->visual)))
685 {
686 // the fun lies in doing everything manually...
687 c.color.red = color.r;
688 c.color.green = color.g;
689 c.color.blue = color.b;
690 c.color.alpha = color.a;
394 691
692 c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red )
693 | insert_component (color.g, format->direct.greenMask, format->direct.green)
694 | insert_component (color.b, format->direct.blueMask , format->direct.blue )
695 | insert_component (color.a, format->direct.alphaMask, format->direct.alpha);
696
697 return true;
698 }
699 else
700 {
395 XRenderColor d; 701 XRenderColor d;
396 702
397 d.red = xc.red; 703 d.red = color.r;
398 d.green = xc.green; 704 d.green = color.g;
399 d.blue = xc.blue; 705 d.blue = color.b;
400 d.alpha = 0xffff; 706 d.alpha = color.a;
401 707
402 return 708 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
403 XftColorAllocValue (display->display, 709 }
404 display->visual,
405 display->cmap,
406 &d, &c);
407#else 710#else
408 this->p = p; 711 c.red = color.r;
409#endif 712 c.green = color.g;
713 c.blue = color.b;
410 714
715 if (screen->visual->c_class == TrueColor)
716 {
717 c.pixel = (color.r >> (16 - popcount (screen->visual->red_mask )) << ctz (screen->visual->red_mask ))
718 | (color.g >> (16 - popcount (screen->visual->green_mask)) << ctz (screen->visual->green_mask))
719 | (color.b >> (16 - popcount (screen->visual->blue_mask )) << ctz (screen->visual->blue_mask ));
720
721 return true;
722 }
723 else if (XAllocColor (screen->dpy, screen->cmap, &c))
411 return true; 724 return true;
725 else
726 c.pixel = (color.r + color.g + color.b) > 128*3
727 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
728 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
729#endif
730
731 return false;
412} 732}
413 733
414bool 734bool
415rxvt_color::set (rxvt_display *display, const char *name) 735rxvt_color::set (rxvt_screen *screen, const char *name)
736{
737 rgba c;
738 char eos;
739 int skip;
740
741 // parse the nonstandard "[alphapercent]" prefix
742 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
743 {
744 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
745 name += skip;
746 }
747 else
748 c.a = rgba::MAX_CC;
749
750 // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format
751 if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos))
752 {
753 XColor xc, xc_exact;
754
755 if (XParseColor (screen->dpy, screen->cmap, name, &xc))
756 {
757 c.r = xc.red;
758 c.g = xc.green;
759 c.b = xc.blue;
760 }
761 else
762 {
763 c.r = 0xffff;
764 c.g = 0x6969;
765 c.b = 0xb4b4;
766
767 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
768 }
769 }
770
771 return set (screen, c);
772}
773
774bool
775rxvt_color::set (rxvt_screen *screen, const rgba &color)
776{
777 bool got = alloc (screen, color);
778
779#if !ENABLE_MINIMAL
780 int cmap_size = screen->visual->map_entries;
781
782 if (!got
783 && screen->visual->c_class == PseudoColor
784 && cmap_size < 4096)
785 {
786 XColor *colors = new XColor [screen->visual->map_entries];
787
788 for (int i = 0; i < cmap_size; i++)
789 colors [i].pixel = i;
790
791 // many kilobytes transfer per colour, but pseudocolor isn't worth
792 // many extra optimisations.
793 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
794
795 int diff = 0x7fffffffUL;
796 XColor *best = colors;
797
798 for (int i = 0; i < cmap_size; i++)
799 {
800 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
801 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
802 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
803
804 if (d < diff)
805 {
806 diff = d;
807 best = colors + i;
808 }
809 }
810
811 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
812 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
813
814 got = alloc (screen, rgba (best->red, best->green, best->blue));
815
816 delete [] colors;
817 }
818#endif
819
820 return got;
821}
822
823void
824rxvt_color::get (rgba &color)
416{ 825{
417#if XFT 826#if XFT
418 return XftColorAllocName (display->display, display->visual, display->cmap, 827 color.r = c.color.red;
419 name, &c); 828 color.g = c.color.green;
829 color.b = c.color.blue;
830 color.a = c.color.alpha;
420#else 831#else
421 XColor xc; 832 color.r = c.red;
422 833 color.g = c.green;
423 if (XParseColor (display->display, display->cmap, name, &xc)) 834 color.b = c.blue;
424 return set (display, xc.red, xc.green, xc.blue); 835 color.a = rgba::MAX_CC;
425
426 return false;
427#endif 836#endif
428} 837}
429 838
430bool 839void
431rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) 840rxvt_color::get (XColor &color)
432{ 841{
433 XColor xc; 842 rgba c;
843 get (c);
434 844
435 xc.red = cr; 845 color.red = c.r;
436 xc.green = cg; 846 color.green = c.g;
437 xc.blue = cb; 847 color.blue = c.b;
438 xc.flags = DoRed | DoGreen | DoBlue; 848 color.pixel = (Pixel)*this;
439
440 if (XAllocColor (display->display, display->cmap, &xc))
441 return set (display, xc.pixel);
442
443 return false;
444} 849}
445 850
446void 851void
447rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) 852rxvt_color::free (rxvt_screen *screen)
448{ 853{
854 if (screen->visual->c_class == TrueColor)
855 return; // nothing to do
856
449#if XFT 857#if XFT
450 cr = c.color.red; 858 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
451 cg = c.color.green;
452 cb = c.color.blue;
453#else 859#else
454 XColor c; 860 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
455
456 c.pixel = p;
457 XQueryColor (display->display, display->cmap, &c);
458
459 cr = c.red;
460 cg = c.green;
461 cb = c.blue;
462#endif 861#endif
463} 862}
464 863
465void 864void
466rxvt_color::free (rxvt_display *display) 865rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
467{ 866{
468#if XFT 867 rgba c;
469 XftColorFree (display->display, display->visual, display->cmap, &c); 868 get (c);
470#else
471 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
472#endif
473}
474 869
475rxvt_color 870 result.set (
476rxvt_color::fade (rxvt_display *display, int percent) 871 screen,
477{ 872 rgba (
478 percent = 100 - percent; 873 lerp (c.r, to.r, percent),
479 874 lerp (c.g, to.g, percent),
480 unsigned short cr, cg, cb; 875 lerp (c.b, to.b, percent),
481 rxvt_color faded; 876 lerp (c.a, to.a, percent)
482 877 )
483 get (display, cr, cg, cb);
484
485 faded.set (
486 display,
487 cr * percent / 100,
488 cg * percent / 100,
489 cb * percent / 100
490 ); 878 );
491
492 return faded;
493} 879}
494 880
495#define LERP(a,b,p) (a * p + b * (100 - p)) / 100
496
497rxvt_color
498rxvt_color::fade (rxvt_display *display, int percent, rxvt_color &fadeto)
499{
500 percent = 100 - percent;
501
502 unsigned short cr, cg, cb;
503 unsigned short fcr, fcg, fcb;
504 rxvt_color faded;
505
506 get (display, cr, cg, cb);
507 fadeto.get(display, fcr, fcg, fcb);
508
509 faded.set (
510 display,
511 LERP (cr, fcr, percent),
512 LERP (cg, fcg, percent),
513 LERP (cb, fcb, percent)
514 );
515
516 return faded;
517}
518

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