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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.23 by root, Wed Jan 11 00:59:58 2006 UTC vs.
Revision 1.64 by root, Mon Feb 12 19:26:10 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.
… …
26 26
27#include <unistd.h> 27#include <unistd.h>
28#include <fcntl.h> 28#include <fcntl.h>
29 29
30#include <sys/utsname.h> 30#include <sys/utsname.h>
31
32#ifndef NO_SLOW_LINK_SUPPORT
33# include <sys/socket.h> 31#include <sys/socket.h>
34# 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",
35#endif 90# endif
91#endif
92};
93
94/////////////////////////////////////////////////////////////////////////////
36 95
37refcounted::refcounted (const char *id) 96refcounted::refcounted (const char *id)
38{ 97{
39 this->id = strdup (id); 98 this->id = strdup (id);
40} 99}
… …
93} 152}
94 153
95///////////////////////////////////////////////////////////////////////////// 154/////////////////////////////////////////////////////////////////////////////
96 155
97#ifdef USE_XIM 156#ifdef USE_XIM
157
98static void 158static void
99#if XIMCB_PROTO_BROKEN 159#if XIMCB_PROTO_BROKEN
100im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3) 160im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3)
101#else 161#else
102im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3) 162im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3)
… …
114bool 174bool
115rxvt_xim::ref_init () 175rxvt_xim::ref_init ()
116{ 176{
117 display = GET_R->display; //HACK: TODO 177 display = GET_R->display; //HACK: TODO
118 178
119 xim = XOpenIM (display->display, NULL, NULL, NULL); 179 xim = XOpenIM (display->dpy, 0, 0, 0);
120 180
121 if (!xim) 181 if (!xim)
122 return false; 182 return false;
123 183
124 XIMCallback ximcallback; 184 XIMCallback ximcallback;
125 ximcallback.client_data = (XPointer)this; 185 ximcallback.client_data = (XPointer)this;
126 ximcallback.callback = im_destroy_cb; 186 ximcallback.callback = im_destroy_cb;
127 187
128 XSetIMValues (xim, XNDestroyCallback, &ximcallback, NULL); 188 XSetIMValues (xim, XNDestroyCallback, &ximcallback, 0);
129 189
130 return true; 190 return true;
131} 191}
132 192
133rxvt_xim::~rxvt_xim () 193rxvt_xim::~rxvt_xim ()
134{ 194{
135 if (xim) 195 if (xim)
136 XCloseIM (xim); 196 XCloseIM (xim);
137} 197}
198
138#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}
139 295
140///////////////////////////////////////////////////////////////////////////// 296/////////////////////////////////////////////////////////////////////////////
141 297
142rxvt_display::rxvt_display (const char *id) 298rxvt_display::rxvt_display (const char *id)
143: refcounted (id) 299: refcounted (id)
… …
145, selection_owner (0) 301, selection_owner (0)
146{ 302{
147} 303}
148 304
149XrmDatabase 305XrmDatabase
150rxvt_display::get_resources () 306rxvt_display::get_resources (bool refresh)
151{ 307{
152 char *homedir = (char *)getenv ("HOME"); 308 char *homedir = (char *)getenv ("HOME");
153 char fname[1024]; 309 char fname[1024];
154 310
155 /* 311 /*
156 * get resources using the X library function 312 * get resources using the X library function
157 */ 313 */
158 char *displayResource, *xe; 314 char *displayResource, *xe;
159 XrmDatabase database, rdb1; 315 XrmDatabase rdb1, database = 0;
160
161 database = NULL;
162 316
163 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20 317 // 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
164 319
165 // 6. System wide per application default file. 320 // 6. System wide per application default file.
166 321
167 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */ 322 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */
168 if ((xe = (char *)getenv ("XAPPLRESDIR"))) 323 if ((xe = (char *)getenv ("XAPPLRESDIR")))
… …
175 330
176 // 5. User's per application default file. 331 // 5. User's per application default file.
177 // none 332 // none
178 333
179 // 4. User's defaults file. 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
180 /* Get any Xserver defaults */ 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
181 displayResource = XResourceManagerString (display); 378 displayResource = XResourceManagerString (dpy);
182 379
183 if (displayResource != NULL) 380 if (displayResource)
184 { 381 {
185 if ((rdb1 = XrmGetStringDatabase (displayResource))) 382 if ((rdb1 = XrmGetStringDatabase (displayResource)))
186 XrmMergeDatabases (rdb1, &database); 383 XrmMergeDatabases (rdb1, &database);
187 } 384 }
188 else if (homedir)
189 {
190 snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir);
191 385
192 if ((rdb1 = XrmGetFileDatabase (fname))) 386#if !XLIB_ILLEGAL_ACCESS
193 XrmMergeDatabases (rdb1, &database); 387 if (refresh && displayResource)
194 } 388 XFree (displayResource);
389#endif
195 390
196 /* Get screen specific resources */ 391 /* Get screen specific resources */
197 displayResource = XScreenResourceString (ScreenOfDisplay (display, screen)); 392 displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen));
198 393
199 if (displayResource != NULL) 394 if (displayResource)
200 { 395 {
201 if ((rdb1 = XrmGetStringDatabase (displayResource))) 396 if ((rdb1 = XrmGetStringDatabase (displayResource)))
202 /* Merge with screen-independent resources */ 397 /* Merge with screen-independent resources */
203 XrmMergeDatabases (rdb1, &database); 398 XrmMergeDatabases (rdb1, &database);
204 399
… …
232 if (id[0] == ':') 427 if (id[0] == ':')
233 { 428 {
234 val = rxvt_malloc (5 + strlen (id) + 1); 429 val = rxvt_malloc (5 + strlen (id) + 1);
235 strcpy (val, "unix/"); 430 strcpy (val, "unix/");
236 strcat (val, id); 431 strcat (val, id);
237 display = XOpenDisplay (val); 432 dpy = XOpenDisplay (val);
238 free (val); 433 free (val);
239 } 434 }
240 else 435 else
241#endif 436#endif
242 display = 0; 437 dpy = 0;
243 438
244 if (!display) 439 if (!dpy)
245 display = XOpenDisplay (id); 440 dpy = XOpenDisplay (id);
246 441
247 if (!display) 442 if (!dpy)
248 return false; 443 return false;
249 444
250 screen = DefaultScreen (display); 445 screen = DefaultScreen (dpy);
251 root = DefaultRootWindow (display); 446 root = DefaultRootWindow (dpy);
252 visual = DefaultVisual (display, screen);
253 cmap = DefaultColormap (display, screen);
254 depth = DefaultDepth (display, screen);
255 447
448 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
449 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
450
256 XrmSetDatabase (display, get_resources ()); 451 XrmSetDatabase (dpy, get_resources (false));
257 452
258#ifdef POINTER_BLANK 453#ifdef POINTER_BLANK
259 XColor blackcolour; 454 XColor blackcolour;
260 blackcolour.red = 0; 455 blackcolour.red = 0;
261 blackcolour.green = 0; 456 blackcolour.green = 0;
262 blackcolour.blue = 0; 457 blackcolour.blue = 0;
263 Font f = XLoadFont (display, "fixed"); 458 Font f = XLoadFont (dpy, "fixed");
264 blank_cursor = XCreateGlyphCursor (display, f, f, ' ', ' ', 459 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
265 &blackcolour, &blackcolour); 460 &blackcolour, &blackcolour);
266 XUnloadFont (display, f); 461 XUnloadFont (dpy, f);
267#endif 462#endif
268 463
269#ifdef PREFER_24BIT
270 /*
271 * If depth is not 24, look for a 24bit visual.
272 */
273 if (depth != 24)
274 {
275 XVisualInfo vinfo;
276
277 if (XMatchVisualInfo (display, screen, 24, TrueColor, &vinfo))
278 {
279 depth = 24;
280 visual = vinfo.visual;
281 cmap = XCreateColormap (display,
282 RootWindow (display, screen),
283 visual, AllocNone);
284 }
285 }
286#endif
287
288 int fd = XConnectionNumber (display); 464 int fd = XConnectionNumber (dpy);
289 465
290#ifndef NO_SLOW_LINK_SUPPORT
291 // try to detect wether we have a local connection. 466 // try to detect wether we have a local connection.
292 // assume unix domains socket == local, everything else not 467 // assume unix domains socket == local, everything else not
293 // TODO: might want to check for inet/127.0.0.1 468 // TODO: might want to check for inet/127.0.0.1
294 is_local = 0; 469 is_local = 0;
295 sockaddr_un sa; 470 sockaddr_un sa;
296 socklen_t sl = sizeof (sa); 471 socklen_t sl = sizeof (sa);
297 472
298 if (!getsockname (fd, (sockaddr *)&sa, &sl)) 473 if (!getsockname (fd, (sockaddr *)&sa, &sl))
299 is_local = sa.sun_family == AF_LOCAL; 474 is_local = sa.sun_family == AF_LOCAL;
300#endif
301 475
302 x_ev.start (fd, EVENT_READ); 476 x_ev.start (fd, EVENT_READ);
303 fcntl (fd, F_SETFD, FD_CLOEXEC); 477 fcntl (fd, F_SETFD, FD_CLOEXEC);
304 478
305 XSelectInput (display, root, PropertyChangeMask); 479 XSelectInput (dpy, root, PropertyChangeMask);
306#ifdef USE_XIM
307 xa_xim_servers = XInternAtom (display, "XIM_SERVERS", 0);
308#endif
309 480
310 flush (); 481 flush ();
311 482
312 return true; 483 return true;
313} 484}
314 485
315void 486void
316rxvt_display::ref_next () 487rxvt_display::ref_next ()
317{ 488{
318 // TODO: somehow check wether the database files/resources changed 489 // TODO: somehow check wether the database files/resources changed
319 // before re-loading/parsing 490 // before affording re-loading/parsing
320 XrmDestroyDatabase (XrmGetDatabase (display)); 491 XrmDestroyDatabase (XrmGetDatabase (dpy));
321 XrmSetDatabase (display, get_resources ()); 492 XrmSetDatabase (dpy, get_resources (true));
322} 493}
323 494
324rxvt_display::~rxvt_display () 495rxvt_display::~rxvt_display ()
325{ 496{
326 if (!display) 497 if (!dpy)
327 return; 498 return;
328 499
329#ifdef POINTER_BLANK 500#ifdef POINTER_BLANK
330 XFreeCursor (display, blank_cursor); 501 XFreeCursor (dpy, blank_cursor);
331#endif 502#endif
332 x_ev.stop (); 503 x_ev.stop ();
333#ifdef USE_XIM 504#ifdef USE_XIM
334 xims.clear (); 505 xims.clear ();
335#endif 506#endif
336 XCloseDisplay (display); 507 XCloseDisplay (dpy);
337} 508}
338 509
339#ifdef USE_XIM 510#ifdef USE_XIM
340void rxvt_display::im_change_cb () 511void rxvt_display::im_change_cb ()
341{ 512{
… …
349 // registers, as xlib crashes due to a race otherwise. 520 // registers, as xlib crashes due to a race otherwise.
350 Atom actual_type, *atoms; 521 Atom actual_type, *atoms;
351 int actual_format; 522 int actual_format;
352 unsigned long nitems, bytes_after; 523 unsigned long nitems, bytes_after;
353 524
354 if (XGetWindowProperty (display, root, xa_xim_servers, 0L, 1000000L, 525 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
355 False, XA_ATOM, &actual_type, &actual_format, 526 False, XA_ATOM, &actual_type, &actual_format,
356 &nitems, &bytes_after, (unsigned char **)&atoms) 527 &nitems, &bytes_after, (unsigned char **)&atoms)
357 != Success ) 528 != Success )
358 return; 529 return;
359 530
360 if (actual_type == XA_ATOM && actual_format == 32) 531 if (actual_type == XA_ATOM && actual_format == 32)
361 for (int i = 0; i < nitems; i++) 532 for (int i = 0; i < nitems; i++)
362 if (XGetSelectionOwner (display, atoms[i])) 533 if (XGetSelectionOwner (dpy, atoms[i]))
363 { 534 {
364 im_change_cb (); 535 im_change_cb ();
365 break; 536 break;
366 } 537 }
367 538
… …
372void rxvt_display::x_cb (io_watcher &w, short revents) 543void rxvt_display::x_cb (io_watcher &w, short revents)
373{ 544{
374 do 545 do
375 { 546 {
376 XEvent xev; 547 XEvent xev;
377 XNextEvent (display, &xev); 548 XNextEvent (dpy, &xev);
378 549
379#ifdef USE_XIM 550#ifdef USE_XIM
380 if (!XFilterEvent (&xev, None)) 551 if (!XFilterEvent (&xev, None))
381 { 552 {
382 if (xev.type == PropertyNotify 553 if (xev.type == PropertyNotify
383 && xev.xany.window == root 554 && xev.xany.window == root
384 && xev.xproperty.atom == xa_xim_servers) 555 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
385 im_change_check (); 556 im_change_check ();
386#endif 557#endif
387 for (int i = xw.size (); i--; ) 558 for (int i = xw.size (); i--; )
388 { 559 {
389 if (!xw[i]) 560 if (!xw[i])
… …
393 } 564 }
394#ifdef USE_XIM 565#ifdef USE_XIM
395 } 566 }
396#endif 567#endif
397 } 568 }
398 while (XEventsQueued (display, QueuedAlready)); 569 while (XEventsQueued (dpy, QueuedAlready));
399 570
400 XFlush (display); 571 XFlush (dpy);
401} 572}
402 573
403void rxvt_display::flush () 574void rxvt_display::flush ()
404{ 575{
405 if (XEventsQueued (display, QueuedAlready)) 576 if (XEventsQueued (dpy, QueuedAlready))
406 x_cb (x_ev, EVENT_READ); 577 x_cb (x_ev, EVENT_READ);
407 578
408 XFlush (display); 579 XFlush (dpy);
409} 580}
410 581
411void rxvt_display::reg (xevent_watcher *w) 582void rxvt_display::reg (xevent_watcher *w)
412{ 583{
584 if (!w->active)
585 {
413 xw.push_back (w); 586 xw.push_back (w);
414 w->active = xw.size (); 587 w->active = xw.size ();
588 }
415} 589}
416 590
417void rxvt_display::unreg (xevent_watcher *w) 591void rxvt_display::unreg (xevent_watcher *w)
418{ 592{
419 if (w->active) 593 if (w->active)
594 {
420 xw[w->active - 1] = 0; 595 xw[w->active - 1] = 0;
596 w->active = 0;
597 }
421} 598}
422 599
423void rxvt_display::set_selection_owner (rxvt_term *owner) 600void rxvt_display::set_selection_owner (rxvt_term *owner)
424{ 601{
425 if (selection_owner && selection_owner != owner) 602 if (selection_owner && selection_owner != owner)
… …
427 604
428 selection_owner = owner; 605 selection_owner = owner;
429} 606}
430 607
431#ifdef USE_XIM 608#ifdef USE_XIM
609
432void rxvt_display::reg (im_watcher *w) 610void rxvt_display::reg (im_watcher *w)
433{ 611{
434 imw.push_back (w); 612 imw.push_back (w);
435} 613}
436 614
… …
460 return xim; 638 return xim;
461} 639}
462 640
463void rxvt_display::put_xim (rxvt_xim *xim) 641void rxvt_display::put_xim (rxvt_xim *xim)
464{ 642{
465#if XLIB_IS_RACEFREE 643# if XLIB_IS_RACEFREE
466 xims.put (xim); 644 xims.put (xim);
467#endif 645# endif
468} 646}
647
469#endif 648#endif
470 649
471Atom rxvt_display::atom (const char *name) 650Atom rxvt_display::atom (const char *name)
472{ 651{
473 return XInternAtom (display, name, False); 652 return XInternAtom (dpy, name, False);
474} 653}
475 654
476///////////////////////////////////////////////////////////////////////////// 655/////////////////////////////////////////////////////////////////////////////
477 656
478template class refcache<rxvt_display>; 657template class refcache<rxvt_display>;
479refcache<rxvt_display> displays; 658refcache<rxvt_display> displays;
480 659
481///////////////////////////////////////////////////////////////////////////// 660/////////////////////////////////////////////////////////////////////////////
482 661//
662
663static unsigned int
664insert_component (unsigned int value, unsigned int mask, unsigned int shift)
665{
666 return (value * (mask + 1) >> 16) << shift;
667}
668
483bool 669bool
484rxvt_color::set (rxvt_display *display, Pixel p) 670rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
485{ 671{
486#if XFT 672#if XFT
487 XColor xc; 673 XRenderPictFormat *format;
488 674
489 xc.pixel = p; 675 // FUCKING Xft gets it wrong, of course, so work around it.
490 if (!XQueryColor (display->display, display->cmap, &xc)) 676 // Transparency users should eat shit and die, and then
491 return false; 677 // XRenderQueryPictIndexValues themselves plenty.
678 if ((screen->visual->c_class == TrueColor)
679 && (format = XRenderFindVisualFormat (screen->dpy, screen->visual)))
680 {
681 // the fun lies in doing everything manually...
682 c.color.red = color.r;
683 c.color.green = color.g;
684 c.color.blue = color.b;
685 c.color.alpha = color.a;
492 686
687 c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red )
688 | insert_component (color.g, format->direct.greenMask, format->direct.green)
689 | insert_component (color.b, format->direct.blueMask , format->direct.blue )
690 | insert_component (color.a, format->direct.alphaMask, format->direct.alpha);
691
692 return true;
693 }
694 else
695 {
493 XRenderColor d; 696 XRenderColor d;
494 697
495 d.red = xc.red; 698 d.red = color.r;
496 d.green = xc.green; 699 d.green = color.g;
497 d.blue = xc.blue; 700 d.blue = color.b;
498 d.alpha = 0xffff; 701 d.alpha = color.a;
499 702
500 return 703 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
501 XftColorAllocValue (display->display, 704 }
502 display->visual,
503 display->cmap,
504 &d, &c);
505#else 705#else
506 this->p = p; 706 c.red = color.r;
507#endif 707 c.green = color.g;
708 c.blue = color.b;
508 709
710 if (screen->visual->c_class == TrueColor)
711 {
712 c.pixel = (color.r >> (16 - popcount (screen->visual->red_mask )) << ctz (screen->visual->red_mask ))
713 | (color.g >> (16 - popcount (screen->visual->green_mask)) << ctz (screen->visual->green_mask))
714 | (color.b >> (16 - popcount (screen->visual->blue_mask )) << ctz (screen->visual->blue_mask ));
715
716 return true;
717 }
718 else if (XAllocColor (screen->dpy, screen->cmap, &c))
509 return true; 719 return true;
720 else
721 c.pixel = (color.r + color.g + color.b) > 128*3
722 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
723 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
724#endif
725
726 return false;
510} 727}
511 728
512bool 729bool
513rxvt_color::set (rxvt_display *display, const char *name) 730rxvt_color::set (rxvt_screen *screen, const char *name)
731{
732 rgba c;
733 char eos;
734 int skip;
735
736 // parse the nonstandard "[alphapercent]" prefix
737 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
738 {
739 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
740 name += skip;
741 }
742 else
743 c.a = rgba::MAX_CC;
744
745 // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format
746 if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos))
747 {
748 XColor xc, xc_exact;
749
750 if (XParseColor (screen->dpy, screen->cmap, name, &xc))
751 {
752 c.r = xc.red;
753 c.g = xc.green;
754 c.b = xc.blue;
755 }
756 else
757 {
758 c.r = 0xffff;
759 c.g = 0x6969;
760 c.b = 0xb4b4;
761
762 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
763 }
764 }
765
766 return set (screen, c);
767}
768
769bool
770rxvt_color::set (rxvt_screen *screen, const rgba &color)
771{
772 bool got = alloc (screen, color);
773
774#if !ENABLE_MINIMAL
775 int cmap_size = screen->visual->map_entries;
776
777 if (!got
778 && screen->visual->c_class == PseudoColor
779 && cmap_size < 4096)
780 {
781 XColor *colors = new XColor [screen->visual->map_entries];
782
783 for (int i = 0; i < cmap_size; i++)
784 colors [i].pixel = i;
785
786 // many kilobytes transfer per colour, but pseudocolor isn't worth
787 // many extra optimisations.
788 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
789
790 int diff = 0x7fffffffUL;
791 XColor *best = colors;
792
793 for (int i = 0; i < cmap_size; i++)
794 {
795 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
796 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
797 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
798
799 if (d < diff)
800 {
801 diff = d;
802 best = colors + i;
803 }
804 }
805
806 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
807 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
808
809 got = alloc (screen, rgba (best->red, best->green, best->blue));
810
811 delete [] colors;
812 }
813#endif
814
815 return got;
816}
817
818void
819rxvt_color::get (rgba &color)
514{ 820{
515#if XFT 821#if XFT
516 return XftColorAllocName (display->display, display->visual, display->cmap, 822 color.r = c.color.red;
517 name, &c); 823 color.g = c.color.green;
824 color.b = c.color.blue;
825 color.a = c.color.alpha;
518#else 826#else
519 XColor xc; 827 color.r = c.red;
520 828 color.g = c.green;
521 if (XParseColor (display->display, display->cmap, name, &xc)) 829 color.b = c.blue;
522 return set (display, xc.red, xc.green, xc.blue); 830 color.a = rgba::MAX_CC;
523
524 return false;
525#endif 831#endif
526} 832}
527 833
528bool 834void
529rxvt_color::set (rxvt_display *display, unsigned short cr, unsigned short cg, unsigned short cb) 835rxvt_color::get (XColor &color)
530{ 836{
531 XColor xc; 837 rgba c;
838 get (c);
532 839
533 xc.red = cr; 840 color.red = c.r;
534 xc.green = cg; 841 color.green = c.g;
535 xc.blue = cb; 842 color.blue = c.b;
536 xc.flags = DoRed | DoGreen | DoBlue; 843 color.pixel = (Pixel)*this;
537
538 if (XAllocColor (display->display, display->cmap, &xc))
539 return set (display, xc.pixel);
540
541 return false;
542} 844}
543 845
544void 846void
545rxvt_color::get (rxvt_display *display, unsigned short &cr, unsigned short &cg, unsigned short &cb) 847rxvt_color::free (rxvt_screen *screen)
546{ 848{
849 if (screen->visual->c_class == TrueColor)
850 return; // nothing to do
851
547#if XFT 852#if XFT
548 cr = c.color.red; 853 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
549 cg = c.color.green;
550 cb = c.color.blue;
551#else 854#else
552 XColor c; 855 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
553
554 c.pixel = p;
555 XQueryColor (display->display, display->cmap, &c);
556
557 cr = c.red;
558 cg = c.green;
559 cb = c.blue;
560#endif 856#endif
561} 857}
562 858
563void 859void
564rxvt_color::free (rxvt_display *display) 860rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
565{ 861{
566#if XFT 862 rgba c;
567 XftColorFree (display->display, display->visual, display->cmap, &c); 863 get (c);
568#else
569 XFreeColors (display->display, display->cmap, &p, 1, AllPlanes);
570#endif
571}
572 864
573rxvt_color 865 result.set (
574rxvt_color::fade (rxvt_display *display, int percent) 866 screen,
575{ 867 rgba (
576 percent = 100 - percent; 868 lerp (c.r, to.r, percent),
577 869 lerp (c.g, to.g, percent),
578 unsigned short cr, cg, cb; 870 lerp (c.b, to.b, percent),
579 rxvt_color faded; 871 lerp (c.a, to.a, percent)
580 872 )
581 get (display, cr, cg, cb);
582
583 faded.set (
584 display,
585 cr * percent / 100,
586 cg * percent / 100,
587 cb * percent / 100
588 ); 873 );
589
590 return faded;
591} 874}
592 875
593#define LERP(a,b,p) (a * p + b * (100 - p)) / 100
594
595rxvt_color
596rxvt_color::fade (rxvt_display *display, int percent, rxvt_color &fadeto)
597{
598 percent = 100 - percent;
599
600 unsigned short cr, cg, cb;
601 unsigned short fcr, fcg, fcb;
602 rxvt_color faded;
603
604 get (display, cr, cg, cb);
605 fadeto.get(display, fcr, fcg, fcb);
606
607 faded.set (
608 display,
609 LERP (cr, fcr, percent),
610 LERP (cg, fcg, percent),
611 LERP (cb, fcb, percent)
612 );
613
614 return faded;
615}
616

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