1 /*----------------------------------------------------------------------*
3 *----------------------------------------------------------------------*
5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 2003-2007 Marc Lehmann <pcg@goof.com>
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
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 *----------------------------------------------------------------------*/
23 #include "../config.h"
25 #include <rxvttoolkit.h>
30 #include <sys/utsname.h>
31 #include <sys/socket.h>
35 # include <X11/extensions/Xrender.h>
38 const char *const xa_names[] =
71 #ifdef ENABLE_TRANSPARENCY
81 "XDCCC_LINEAR_RGB_CORRECTION",
82 "XDCCC_LINEAR_RGB_MATRICES",
83 "WM_COLORMAP_WINDOWS",
96 /////////////////////////////////////////////////////////////////////////////
98 refcounted::refcounted (const char *id)
100 this->id = strdup (id);
103 refcounted::~refcounted ()
109 T *refcache<T>::get (const char *id)
111 for (T **i = this->begin (); i < this->end (); ++i)
113 if (!strcmp (id, (*i)->id))
123 if (obj && obj->ref_init ())
126 this->push_back (obj);
137 void refcache<T>::put (T *obj)
142 if (!--obj->referenced)
144 this->erase (find (this->begin (), this->end (), obj));
150 void refcache<T>::clear ()
152 while (this->size ())
153 put (*this->begin ());
156 /////////////////////////////////////////////////////////////////////////////
161 #if XIMCB_PROTO_BROKEN
162 im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3)
164 im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3)
167 rxvt_xim *xim = (rxvt_xim *)client_data;
168 rxvt_display *display = xim->display;
172 display->xims.erase (find (display->xims.begin (), display->xims.end (), xim));
173 display->im_change_cb ();
177 rxvt_xim::ref_init ()
179 display = GET_R->display; //HACK: TODO
181 xim = XOpenIM (display->dpy, 0, 0, 0);
186 XIMCallback ximcallback;
187 ximcallback.client_data = (XPointer)this;
188 ximcallback.callback = im_destroy_cb;
190 XSetIMValues (xim, XNDestroyCallback, &ximcallback, (char *)0);
195 rxvt_xim::~rxvt_xim ()
203 /////////////////////////////////////////////////////////////////////////////
206 rxvt_drawable::~rxvt_drawable ()
209 XftDrawDestroy (xftdrawable);
212 rxvt_drawable::operator XftDraw *()
215 xftdrawable = XftDrawCreate (screen->dpy, drawable, screen->visual, screen->cmap);
221 /////////////////////////////////////////////////////////////////////////////
225 // not strictly necessary as it is only used with superclass of zero_initialised
226 rxvt_screen::rxvt_screen ()
231 rxvt_drawable &rxvt_screen::scratch_drawable (int w, int h)
233 // it's actually faster to re-allocate every time. don't ask me
234 // why, but its likely no big deal there are no roundtrips
236 if (!scratch_area || w > scratch_w || h > scratch_h || 1/*D*/)
240 XFreePixmap (dpy, scratch_area->drawable);
244 Pixmap pm = XCreatePixmap (dpy, RootWindowOfScreen (ScreenOfDisplay (dpy, display->screen)),
245 scratch_w = w, scratch_h = h, depth);
247 scratch_area = new rxvt_drawable (this, pm);
250 return *scratch_area;
256 rxvt_screen::set (rxvt_display *disp)
261 Screen *screen = ScreenOfDisplay (dpy, disp->screen);
263 depth = DefaultDepthOfScreen (screen);
264 visual = DefaultVisualOfScreen (screen);
265 cmap = DefaultColormapOfScreen (screen);
269 rxvt_screen::select_visual (int bitdepth)
274 if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo))
277 visual = vinfo.visual;
278 cmap = XCreateColormap (dpy, display->root, visual, AllocNone);
284 rxvt_screen::clear ()
289 XFreePixmap (dpy, scratch_area->drawable);
294 if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (dpy, display->screen)))
295 XFreeColormap (dpy, cmap);
298 /////////////////////////////////////////////////////////////////////////////
300 rxvt_display::rxvt_display (const char *id)
302 , selection_owner (0)
303 , clipboard_owner (0)
305 x_ev .set<rxvt_display, &rxvt_display::x_cb > (this);
306 flush_ev.set<rxvt_display, &rxvt_display::flush_cb> (this);
310 rxvt_display::get_resources (bool refresh)
312 char *homedir = getenv ("HOME");
316 * get resources using the X library function
318 char *displayResource, *xe;
319 XrmDatabase rdb1, database = 0;
321 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20
322 // as opposed to "standard practise", we always read in ~/.Xdefaults
324 // 6. System wide per application default file.
326 /* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */
327 if ((xe = getenv ("XAPPLRESDIR")))
329 snprintf (fname, sizeof (fname), "%s/%s", xe, RESCLASS);
331 if ((rdb1 = XrmGetFileDatabase (fname)))
332 XrmMergeDatabases (rdb1, &database);
335 // 5. User's per application default file.
338 // 4. User's defaults file.
341 snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir);
343 if ((rdb1 = XrmGetFileDatabase (fname)))
344 XrmMergeDatabases (rdb1, &database);
347 /* Get any Xserver defaults */
350 // fucking xlib keeps a copy of the rm string
353 unsigned long nitems, nremaining;
356 #if XLIB_ILLEGAL_ACCESS
358 XFree (dpy->xdefaults);
361 if (XGetWindowProperty (dpy, RootWindow (dpy, 0), XA_RESOURCE_MANAGER,
362 0L, 100000000L, False,
363 XA_STRING, &actual_type, &actual_format,
364 &nitems, &nremaining,
365 (unsigned char **)&val) == Success
366 && actual_type == XA_STRING
367 && actual_format == 8)
368 displayResource = val;
377 #if XLIB_ILLEGAL_ACCESS
378 dpy->xdefaults = displayResource;
382 displayResource = XResourceManagerString (dpy);
386 if ((rdb1 = XrmGetStringDatabase (displayResource)))
387 XrmMergeDatabases (rdb1, &database);
390 #if !XLIB_ILLEGAL_ACCESS
391 if (refresh && displayResource)
392 XFree (displayResource);
395 /* Get screen specific resources */
396 displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen));
400 if ((rdb1 = XrmGetStringDatabase (displayResource)))
401 /* Merge with screen-independent resources */
402 XrmMergeDatabases (rdb1, &database);
404 XFree (displayResource);
407 // 3. User's per host defaults file
408 /* Add in XENVIRONMENT file */
409 if ((xe = getenv ("XENVIRONMENT"))
410 && (rdb1 = XrmGetFileDatabase (xe)))
411 XrmMergeDatabases (rdb1, &database);
418 snprintf (fname, sizeof (fname), "%s/.Xdefaults-%s", homedir, un.nodename);
420 if ((rdb1 = XrmGetFileDatabase (fname)))
421 XrmMergeDatabases (rdb1, &database);
428 bool rxvt_display::ref_init ()
430 #ifdef LOCAL_X_IS_UNIX
433 if (!(val = rxvt_temp_buf<char> (5 + strlen (id) + 1)))
435 strcpy (val, "unix/");
437 dpy = XOpenDisplay (val);
444 dpy = XOpenDisplay (id);
449 screen = DefaultScreen (dpy);
450 root = DefaultRootWindow (dpy);
452 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA);
453 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
455 XrmSetDatabase (dpy, get_resources (false));
460 blackcolour.green = 0;
461 blackcolour.blue = 0;
462 Font f = XLoadFont (dpy, "fixed");
463 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
464 &blackcolour, &blackcolour);
465 XUnloadFont (dpy, f);
468 int fd = XConnectionNumber (dpy);
470 // try to detect whether we have a local connection.
471 // assume unix domain socket == local, everything else not
472 // TODO: might want to check for inet/127.0.0.1
475 socklen_t sl = sizeof (sa);
477 if (!getsockname (fd, (sockaddr *)&sa, &sl))
478 is_local = sa.sun_family == AF_UNIX;
481 x_ev.start (fd, ev::READ);
482 fcntl (fd, F_SETFD, FD_CLOEXEC);
484 XSelectInput (dpy, root, PropertyChangeMask);
492 rxvt_display::ref_next ()
494 // TODO: somehow check whether the database files/resources changed
495 // before affording re-loading/parsing
496 XrmDestroyDatabase (XrmGetDatabase (dpy));
497 XrmSetDatabase (dpy, get_resources (true));
500 rxvt_display::~rxvt_display ()
506 XFreeCursor (dpy, blank_cursor);
517 void rxvt_display::im_change_cb ()
519 for (im_watcher **i = imw.begin (); i != imw.end (); ++i)
523 void rxvt_display::im_change_check ()
525 // try to only call im_change_cb when a new input method
526 // registers, as xlib crashes due to a race otherwise.
527 Atom actual_type, *atoms;
529 unsigned long nitems, bytes_after;
531 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
532 False, XA_ATOM, &actual_type, &actual_format,
533 &nitems, &bytes_after, (unsigned char **)&atoms)
537 if (actual_type == XA_ATOM && actual_format == 32)
538 for (int i = 0; i < nitems; i++)
539 if (XGetSelectionOwner (dpy, atoms[i]))
549 void rxvt_display::x_cb (ev::io &w, int revents)
554 void rxvt_display::flush_cb (ev::prepare &w, int revents)
556 while (XEventsQueued (dpy, QueuedAfterFlush))
560 XNextEvent (dpy, &xev);
563 if (!XFilterEvent (&xev, None))
565 if (xev.type == PropertyNotify
566 && xev.xany.window == root
567 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
570 if (xev.type == MappingNotify)
571 XRefreshKeyboardMapping (&xev.xmapping);
573 for (int i = xw.size (); i--; )
576 xw.erase_unordered (i);
577 else if (xw[i]->window == xev.xany.window)
584 while (XEventsQueued (dpy, QueuedAlready));
589 void rxvt_display::reg (xevent_watcher *w)
594 w->active = xw.size ();
598 void rxvt_display::unreg (xevent_watcher *w)
602 xw[w->active - 1] = 0;
607 void rxvt_display::set_selection_owner (rxvt_term *owner, bool clipboard)
609 rxvt_term * &cur_owner = !clipboard ? selection_owner : clipboard_owner;
611 if (cur_owner && cur_owner != owner)
613 rxvt_term *term = cur_owner;
614 term->selection_clear (clipboard);
623 void rxvt_display::reg (im_watcher *w)
628 void rxvt_display::unreg (im_watcher *w)
630 imw.erase (find (imw.begin (), imw.end (), w));
633 rxvt_xim *rxvt_display::get_xim (const char *locale, const char *modifiers)
639 m = strlen (modifiers);
641 if (!(id = rxvt_temp_buf<char> (l + m + 2)))
644 memcpy (id, locale, l); id[l] = '\n';
645 memcpy (id + l + 1, modifiers, m); id[l + m + 1] = 0;
647 rxvt_xim *xim = xims.get (id);
652 void rxvt_display::put_xim (rxvt_xim *xim)
654 # if XLIB_IS_RACEFREE
661 Atom rxvt_display::atom (const char *name)
663 return XInternAtom (dpy, name, False);
666 /////////////////////////////////////////////////////////////////////////////
668 template class refcache<rxvt_display>;
669 refcache<rxvt_display> displays;
671 /////////////////////////////////////////////////////////////////////////////
675 insert_component (unsigned int value, unsigned int mask, unsigned int shift)
677 return (value * (mask + 1) >> 16) << shift;
681 rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
683 //TODO: only supports 24 bit
684 int alpha = color.a >= 0xff00 ? 0xffff : color.a;
687 XRenderPictFormat *format;
689 // FUCKING Xft gets it wrong, of course, so work around it.
690 // Transparency users should eat shit and die, and then
691 // XRenderQueryPictIndexValues themselves plenty.
692 if ((screen->visual->c_class == TrueColor)
693 && (format = XRenderFindVisualFormat (screen->dpy, screen->visual)))
695 // the fun lies in doing everything manually...
696 c.color.red = color.r;
697 c.color.green = color.g;
698 c.color.blue = color.b;
699 c.color.alpha = alpha;
701 c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red )
702 | insert_component (color.g, format->direct.greenMask, format->direct.green)
703 | insert_component (color.b, format->direct.blueMask , format->direct.blue )
704 | insert_component (alpha , format->direct.alphaMask, format->direct.alpha);
717 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c);
724 if (screen->visual->c_class == TrueColor)
726 c.pixel = (color.r >> (16 - rxvt_popcount (screen->visual->red_mask )) << rxvt_ctz (screen->visual->red_mask ))
727 | (color.g >> (16 - rxvt_popcount (screen->visual->green_mask)) << rxvt_ctz (screen->visual->green_mask))
728 | (color.b >> (16 - rxvt_popcount (screen->visual->blue_mask )) << rxvt_ctz (screen->visual->blue_mask ));
732 else if (XAllocColor (screen->dpy, screen->cmap, &c))
735 c.pixel = (color.r + color.g + color.b) > 128*3
736 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
737 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
744 rxvt_color::set (rxvt_screen *screen, const char *name)
752 // parse the nonstandard "[alphapercent]" prefix
753 if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip))
755 c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a);
759 // parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format
760 if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos))
764 if (XParseColor (screen->dpy, screen->cmap, name, &xc))
776 rxvt_warn ("unable to parse color '%s', using pink instead.\n", name);
780 return set (screen, c);
784 rxvt_color::set (rxvt_screen *screen, const rgba &color)
786 bool got = alloc (screen, color);
789 int cmap_size = screen->visual->map_entries;
792 && screen->visual->c_class == PseudoColor
795 XColor *colors = new XColor [screen->visual->map_entries];
797 for (int i = 0; i < cmap_size; i++)
798 colors [i].pixel = i;
800 // many kilobytes transfer per colour, but pseudocolor isn't worth
801 // many extra optimisations.
802 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
804 int diff = 0x7fffffffUL;
805 XColor *best = colors;
807 for (int i = 0; i < cmap_size; i++)
809 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
810 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
811 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
820 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n",
821 // color.r, color.g, color.b, best->red, best->green, best->blue, diff);
823 got = alloc (screen, rgba (best->red, best->green, best->blue));
833 rxvt_color::get (rgba &color)
836 color.r = c.color.red;
837 color.g = c.color.green;
838 color.b = c.color.blue;
839 color.a = c.color.alpha;
844 color.a = rgba::MAX_CC;
849 rxvt_color::get (XColor &color)
857 color.pixel = (Pixel)*this;
861 rxvt_color::free (rxvt_screen *screen)
863 if (screen->visual->c_class == TrueColor)
864 return; // nothing to do
867 XftColorFree (screen->dpy, screen->visual, screen->cmap, &c);
869 XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes);
874 rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to)
882 lerp (c.r, to.r, percent),
883 lerp (c.g, to.g, percent),
884 lerp (c.b, to.b, percent),
885 lerp (c.a, to.a, percent)
891 # undef XCreatePixmap
893 Pixmap trace_XCreatePixmap (const char *file, int line, Display *dpy, Window r, unsigned int w, unsigned int h, unsigned int d)
895 Pixmap res = XCreatePixmap (dpy, r, w, h, d);
896 fprintf (stderr, "%s:%d: XCreatePixmap (%p,%lX,%u,%u,%u) returned %lX\n", file, line, dpy, r, w, h, d, res);
900 void trace_XFreePixmap (const char *file, int line, Display *dpy, Pixmap p)
902 fprintf (stderr, "%s:%d: XFreePixmap (%p,%lX)\n", file, line, dpy, p);