4 * Copyright 2001 Sun Microsystems Inc.
6 * Erwann Chenede <erwann.chenede@sun.com>
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library 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 GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
24 #include "gdkscreen-x11.h"
25 #include "gdkdisplay-x11.h"
26 #include "gdkprivate-x11.h"
33 #include <X11/Xatom.h>
35 #ifdef HAVE_SOLARIS_XINERAMA
36 #include <X11/extensions/xinerama.h>
38 #ifdef HAVE_XFREE_XINERAMA
39 #include <X11/extensions/Xinerama.h>
43 #include <X11/extensions/Xrandr.h>
47 #include <X11/extensions/Xfixes.h>
50 static void gdk_x11_screen_dispose (GObject *object);
51 static void gdk_x11_screen_finalize (GObject *object);
52 static void init_randr_support (GdkScreen *screen);
53 static void deinit_multihead (GdkScreen *screen);
57 WINDOW_MANAGER_CHANGED,
61 static guint signals[LAST_SIGNAL] = { 0 };
63 G_DEFINE_TYPE (GdkX11Screen, gdk_x11_screen, GDK_TYPE_SCREEN)
65 typedef struct _NetWmSupportedAtoms NetWmSupportedAtoms;
67 struct _NetWmSupportedAtoms
75 GdkRectangle geometry;
85 gdk_x11_screen_init (GdkX11Screen *screen)
90 gdk_x11_screen_get_display (GdkScreen *screen)
92 return GDK_X11_SCREEN (screen)->display;
96 gdk_x11_screen_get_width (GdkScreen *screen)
98 return WidthOfScreen (GDK_X11_SCREEN (screen)->xscreen);
102 gdk_x11_screen_get_height (GdkScreen *screen)
104 return HeightOfScreen (GDK_X11_SCREEN (screen)->xscreen);
108 gdk_x11_screen_get_width_mm (GdkScreen *screen)
110 return WidthMMOfScreen (GDK_X11_SCREEN (screen)->xscreen);
114 gdk_x11_screen_get_height_mm (GdkScreen *screen)
116 return HeightMMOfScreen (GDK_X11_SCREEN (screen)->xscreen);
120 gdk_x11_screen_get_number (GdkScreen *screen)
122 return GDK_X11_SCREEN (screen)->screen_num;
126 gdk_x11_screen_get_root_window (GdkScreen *screen)
128 return GDK_X11_SCREEN (screen)->root_window;
132 _gdk_x11_screen_events_uninit (GdkScreen *screen)
134 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
136 if (x11_screen->xsettings_client)
138 xsettings_client_destroy (x11_screen->xsettings_client);
139 x11_screen->xsettings_client = NULL;
144 gdk_x11_screen_dispose (GObject *object)
146 GdkX11Screen *x11_screen = GDK_X11_SCREEN (object);
149 for (i = 0; i < 32; ++i)
151 if (x11_screen->subwindow_gcs[i])
153 XFreeGC (x11_screen->xdisplay, x11_screen->subwindow_gcs[i]);
154 x11_screen->subwindow_gcs[i] = 0;
158 _gdk_x11_screen_events_uninit (GDK_SCREEN (object));
160 if (x11_screen->root_window)
161 _gdk_window_destroy (x11_screen->root_window, TRUE);
163 G_OBJECT_CLASS (gdk_x11_screen_parent_class)->dispose (object);
165 x11_screen->xdisplay = NULL;
166 x11_screen->xscreen = NULL;
167 x11_screen->screen_num = -1;
168 x11_screen->xroot_window = None;
169 x11_screen->wmspec_check_window = None;
173 gdk_x11_screen_finalize (GObject *object)
175 GdkX11Screen *x11_screen = GDK_X11_SCREEN (object);
178 if (x11_screen->root_window)
179 g_object_unref (x11_screen->root_window);
182 for (i = 0; i < x11_screen->nvisuals; i++)
183 g_object_unref (x11_screen->visuals[i]);
184 g_free (x11_screen->visuals);
185 g_hash_table_destroy (x11_screen->visual_hash);
187 g_free (x11_screen->window_manager_name);
189 deinit_multihead (GDK_SCREEN (object));
191 G_OBJECT_CLASS (gdk_x11_screen_parent_class)->finalize (object);
195 gdk_x11_screen_get_n_monitors (GdkScreen *screen)
197 return GDK_X11_SCREEN (screen)->n_monitors;
201 gdk_x11_screen_get_primary_monitor (GdkScreen *screen)
203 return GDK_X11_SCREEN (screen)->primary_monitor;
207 gdk_x11_screen_get_monitor_width_mm (GdkScreen *screen,
210 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
212 return x11_screen->monitors[monitor_num].width_mm;
216 gdk_x11_screen_get_monitor_height_mm (GdkScreen *screen,
219 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
221 return x11_screen->monitors[monitor_num].height_mm;
225 gdk_x11_screen_get_monitor_plug_name (GdkScreen *screen,
228 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
230 return g_strdup (x11_screen->monitors[monitor_num].output_name);
234 * gdk_x11_screen_get_monitor_output:
235 * @screen: (type GdkX11Screen): a #GdkScreen
236 * @monitor_num: number of the monitor, between 0 and gdk_screen_get_n_monitors (screen)
238 * Gets the XID of the specified output/monitor.
239 * If the X server does not support version 1.2 of the RANDR
240 * extension, 0 is returned.
242 * Returns: the XID of the monitor
247 gdk_x11_screen_get_monitor_output (GdkScreen *screen,
250 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
252 g_return_val_if_fail (GDK_IS_SCREEN (screen), None);
253 g_return_val_if_fail (monitor_num >= 0, None);
254 g_return_val_if_fail (monitor_num < x11_screen->n_monitors, None);
256 return x11_screen->monitors[monitor_num].output;
260 gdk_x11_screen_get_monitor_geometry (GdkScreen *screen,
264 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
267 *dest = x11_screen->monitors[monitor_num].geometry;
271 get_current_desktop (GdkScreen *screen)
275 Atom current_desktop, type;
277 unsigned long n_items, bytes_after;
278 unsigned char *data_return = NULL;
281 if (!gdk_x11_screen_supports_net_wm_hint (screen,
282 gdk_atom_intern_static_string ("_NET_CURRENT_DESKTOP")))
285 display = GDK_DISPLAY_XDISPLAY (gdk_screen_get_display (screen));
286 win = XRootWindow (display, GDK_SCREEN_XNUMBER (screen));
288 current_desktop = XInternAtom (display, "_NET_CURRENT_DESKTOP", True);
290 XGetWindowProperty (display,
295 &type, &format, &n_items, &bytes_after,
298 if (type == XA_CARDINAL && format == 32 && n_items > 0)
299 workspace = (int) data_return[0];
308 get_work_area (GdkScreen *screen,
317 gulong max_len = 4 * 32;
318 guchar *ret_workarea;
325 display = GDK_DISPLAY_XDISPLAY (gdk_screen_get_display (screen));
326 disp_screen = GDK_SCREEN_XNUMBER (screen);
327 workarea = XInternAtom (display, "_NET_WORKAREA", True);
329 /* Defaults in case of error */
332 area->width = gdk_screen_get_width (screen);
333 area->height = gdk_screen_get_height (screen);
335 if (!gdk_x11_screen_supports_net_wm_hint (screen,
336 gdk_atom_intern_static_string ("_NET_WORKAREA")))
339 if (workarea == None)
342 win = XRootWindow (display, disp_screen);
343 result = XGetWindowProperty (display,
355 if (result != Success ||
362 desktop = get_current_desktop (screen);
364 workareas = (long *) ret_workarea;
365 area->x = workareas[desktop * 4];
366 area->y = workareas[desktop * 4 + 1];
367 area->width = workareas[desktop * 4 + 2];
368 area->height = workareas[desktop * 4 + 3];
370 XFree (ret_workarea);
374 gdk_x11_screen_get_monitor_workarea (GdkScreen *screen,
378 GdkRectangle workarea;
380 gdk_x11_screen_get_monitor_geometry (screen, monitor_num, dest);
382 /* The EWMH constrains workarea to be a rectangle, so it
383 * can't adequately deal with L-shaped monitor arrangements.
384 * As a workaround, we ignore the workarea for anything
385 * but the primary monitor. Since that is where the 'desktop
386 * chrome' usually lives, this works ok in practice.
388 if (monitor_num == GDK_X11_SCREEN (screen)->primary_monitor)
390 get_work_area (screen, &workarea);
391 if (gdk_rectangle_intersect (dest, &workarea, &workarea))
397 gdk_x11_screen_get_rgba_visual (GdkScreen *screen)
399 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
401 return x11_screen->rgba_visual;
405 * gdk_x11_screen_get_xscreen:
406 * @screen: (type GdkX11Screen): a #GdkScreen
408 * Returns the screen of a #GdkScreen.
410 * Returns: (transfer none): an Xlib <type>Screen*</type>
415 gdk_x11_screen_get_xscreen (GdkScreen *screen)
417 return GDK_X11_SCREEN (screen)->xscreen;
421 * gdk_x11_screen_get_screen_number:
422 * @screen: (type GdkX11Screen): a #GdkScreen
424 * Returns the index of a #GdkScreen.
426 * Returns: the position of @screen among the screens
432 gdk_x11_screen_get_screen_number (GdkScreen *screen)
434 return GDK_X11_SCREEN (screen)->screen_num;
438 check_is_composited (GdkDisplay *display,
439 GdkX11Screen *x11_screen)
441 Atom xselection = gdk_x11_atom_to_xatom_for_display (display, x11_screen->cm_selection_atom);
444 xwindow = XGetSelectionOwner (GDK_DISPLAY_XDISPLAY (display), xselection);
446 return xwindow != None;
450 make_cm_atom (int screen_number)
452 gchar *name = g_strdup_printf ("_NET_WM_CM_S%d", screen_number);
453 GdkAtom atom = gdk_atom_intern (name, FALSE);
459 init_monitor_geometry (GdkX11Monitor *monitor,
460 int x, int y, int width, int height)
462 monitor->geometry.x = x;
463 monitor->geometry.y = y;
464 monitor->geometry.width = width;
465 monitor->geometry.height = height;
467 monitor->output = None;
468 monitor->width_mm = -1;
469 monitor->height_mm = -1;
470 monitor->output_name = NULL;
471 monitor->manufacturer = NULL;
475 init_fake_xinerama (GdkScreen *screen)
477 #ifdef G_ENABLE_DEBUG
478 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
479 XSetWindowAttributes atts;
483 if (!(_gdk_debug_flags & GDK_DEBUG_XINERAMA))
486 /* Fake Xinerama mode by splitting the screen into 4 monitors.
487 * Also draw a little cross to make the monitor boundaries visible.
489 w = WidthOfScreen (x11_screen->xscreen);
490 h = HeightOfScreen (x11_screen->xscreen);
492 x11_screen->n_monitors = 4;
493 x11_screen->monitors = g_new0 (GdkX11Monitor, 4);
494 init_monitor_geometry (&x11_screen->monitors[0], 0, 0, w / 2, h / 2);
495 init_monitor_geometry (&x11_screen->monitors[1], w / 2, 0, w / 2, h / 2);
496 init_monitor_geometry (&x11_screen->monitors[2], 0, h / 2, w / 2, h / 2);
497 init_monitor_geometry (&x11_screen->monitors[3], w / 2, h / 2, w / 2, h / 2);
499 atts.override_redirect = 1;
500 atts.background_pixel = WhitePixel(GDK_SCREEN_XDISPLAY (screen),
501 x11_screen->screen_num);
502 win = XCreateWindow(GDK_SCREEN_XDISPLAY (screen),
503 x11_screen->xroot_window, 0, h / 2, w, 1, 0,
504 DefaultDepth(GDK_SCREEN_XDISPLAY (screen),
505 x11_screen->screen_num),
507 DefaultVisual(GDK_SCREEN_XDISPLAY (screen),
508 x11_screen->screen_num),
509 CWOverrideRedirect|CWBackPixel,
511 XMapRaised(GDK_SCREEN_XDISPLAY (screen), win);
512 win = XCreateWindow(GDK_SCREEN_XDISPLAY (screen),
513 x11_screen->xroot_window, w/2 , 0, 1, h, 0,
514 DefaultDepth(GDK_SCREEN_XDISPLAY (screen),
515 x11_screen->screen_num),
517 DefaultVisual(GDK_SCREEN_XDISPLAY (screen),
518 x11_screen->screen_num),
519 CWOverrideRedirect|CWBackPixel,
521 XMapRaised(GDK_SCREEN_XDISPLAY (screen), win);
529 free_monitors (GdkX11Monitor *monitors,
534 for (i = 0; i < n_monitors; ++i)
536 g_free (monitors[i].output_name);
537 g_free (monitors[i].manufacturer);
545 monitor_compare_function (GdkX11Monitor *monitor1,
546 GdkX11Monitor *monitor2)
548 /* Sort the leftmost/topmost monitors first.
549 * For "cloned" monitors, sort the bigger ones first
550 * (giving preference to taller monitors over wider
554 if (monitor1->geometry.x != monitor2->geometry.x)
555 return monitor1->geometry.x - monitor2->geometry.x;
557 if (monitor1->geometry.y != monitor2->geometry.y)
558 return monitor1->geometry.y - monitor2->geometry.y;
560 if (monitor1->geometry.height != monitor2->geometry.height)
561 return - (monitor1->geometry.height - monitor2->geometry.height);
563 if (monitor1->geometry.width != monitor2->geometry.width)
564 return - (monitor1->geometry.width - monitor2->geometry.width);
571 init_randr13 (GdkScreen *screen)
574 GdkDisplay *display = gdk_screen_get_display (screen);
575 GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
576 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
577 Display *dpy = GDK_SCREEN_XDISPLAY (screen);
578 XRRScreenResources *resources;
579 RROutput primary_output;
580 RROutput first_output = None;
583 gboolean randr12_compat = FALSE;
585 if (!display_x11->have_randr13)
588 resources = XRRGetScreenResourcesCurrent (x11_screen->xdisplay,
589 x11_screen->xroot_window);
593 monitors = g_array_sized_new (FALSE, TRUE, sizeof (GdkX11Monitor),
596 for (i = 0; i < resources->noutput; ++i)
598 XRROutputInfo *output =
599 XRRGetOutputInfo (dpy, resources, resources->outputs[i]);
601 /* Non RandR1.2 X driver have output name "default" */
602 randr12_compat |= !g_strcmp0 (output->name, "default");
604 if (output->connection == RR_Disconnected)
606 XRRFreeOutputInfo (output);
612 GdkX11Monitor monitor;
613 XRRCrtcInfo *crtc = XRRGetCrtcInfo (dpy, resources, output->crtc);
615 monitor.geometry.x = crtc->x;
616 monitor.geometry.y = crtc->y;
617 monitor.geometry.width = crtc->width;
618 monitor.geometry.height = crtc->height;
620 monitor.output = resources->outputs[i];
621 monitor.width_mm = output->mm_width;
622 monitor.height_mm = output->mm_height;
623 monitor.output_name = g_strdup (output->name);
624 /* FIXME: need EDID parser */
625 monitor.manufacturer = NULL;
627 g_array_append_val (monitors, monitor);
629 XRRFreeCrtcInfo (crtc);
632 XRRFreeOutputInfo (output);
635 if (resources->noutput > 0)
636 first_output = resources->outputs[0];
638 XRRFreeScreenResources (resources);
640 /* non RandR 1.2 X driver doesn't return any usable multihead data */
643 guint n_monitors = monitors->len;
645 free_monitors ((GdkX11Monitor *)g_array_free (monitors, FALSE),
651 g_array_sort (monitors,
652 (GCompareFunc) monitor_compare_function);
653 x11_screen->n_monitors = monitors->len;
654 x11_screen->monitors = (GdkX11Monitor *)g_array_free (monitors, FALSE);
656 x11_screen->primary_monitor = 0;
658 primary_output = XRRGetOutputPrimary (x11_screen->xdisplay,
659 x11_screen->xroot_window);
661 for (i = 0; i < x11_screen->n_monitors; ++i)
663 if (x11_screen->monitors[i].output == primary_output)
665 x11_screen->primary_monitor = i;
669 /* No RandR1.3+ available or no primary set, fall back to prefer LVDS as primary if present */
670 if (primary_output == None &&
671 g_ascii_strncasecmp (x11_screen->monitors[i].output_name, "LVDS", 4) == 0)
673 x11_screen->primary_monitor = i;
677 /* No primary specified and no LVDS found */
678 if (x11_screen->monitors[i].output == first_output)
679 x11_screen->primary_monitor = i;
682 return x11_screen->n_monitors > 0;
689 init_solaris_xinerama (GdkScreen *screen)
691 #ifdef HAVE_SOLARIS_XINERAMA
692 Display *dpy = GDK_SCREEN_XDISPLAY (screen);
693 int screen_no = gdk_screen_get_number (screen);
694 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
695 XRectangle monitors[MAXFRAMEBUFFERS];
696 unsigned char hints[16];
701 if (!XineramaGetState (dpy, screen_no))
704 result = XineramaGetInfo (dpy, screen_no, monitors, hints, &n_monitors);
706 /* Yes I know it should be Success but the current implementation
707 * returns the num of monitor
714 x11_screen->monitors = g_new0 (GdkX11Monitor, n_monitors);
715 x11_screen->n_monitors = n_monitors;
717 for (i = 0; i < n_monitors; i++)
719 init_monitor_geometry (&x11_screen->monitors[i],
720 monitors[i].x, monitors[i].y,
721 monitors[i].width, monitors[i].height);
724 x11_screen->primary_monitor = 0;
727 #endif /* HAVE_SOLARIS_XINERAMA */
733 init_xfree_xinerama (GdkScreen *screen)
735 #ifdef HAVE_XFREE_XINERAMA
736 Display *dpy = GDK_SCREEN_XDISPLAY (screen);
737 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
738 XineramaScreenInfo *monitors;
741 if (!XineramaIsActive (dpy))
744 monitors = XineramaQueryScreens (dpy, &n_monitors);
746 if (n_monitors <= 0 || monitors == NULL)
748 /* If Xinerama doesn't think we have any monitors, try acting as
749 * though we had no Xinerama. If the "no monitors" condition
750 * is because XRandR 1.2 is currently switching between CRTCs,
751 * we'll be notified again when we have our monitor back,
752 * and can go back into Xinerama-ish mode at that point.
760 x11_screen->n_monitors = n_monitors;
761 x11_screen->monitors = g_new0 (GdkX11Monitor, n_monitors);
763 for (i = 0; i < n_monitors; ++i)
765 init_monitor_geometry (&x11_screen->monitors[i],
766 monitors[i].x_org, monitors[i].y_org,
767 monitors[i].width, monitors[i].height);
772 x11_screen->primary_monitor = 0;
775 #endif /* HAVE_XFREE_XINERAMA */
781 init_solaris_xinerama_indices (GdkX11Screen *x11_screen)
783 #ifdef HAVE_SOLARIS_XINERAMA
784 XRectangle x_monitors[MAXFRAMEBUFFERS];
785 unsigned char hints[16];
791 if (!XineramaGetState (x11_screen->xdisplay, x11_screen->screen_num))
794 result = XineramaGetInfo (x11_screen->xdisplay, x11_screen->screen_num,
795 x_monitors, hints, &x_n_monitors);
801 for (monitor_num = 0; monitor_num < x11_screen->n_monitors; ++monitor_num)
803 for (i = 0; i < x_n_monitors; ++i)
805 if (x11_screen->monitors[monitor_num].geometry.x == x_monitors[i].x &&
806 x11_screen->monitors[monitor_num].geometry.y == x_monitors[i].y &&
807 x11_screen->monitors[monitor_num].geometry.width == x_monitors[i].width &&
808 x11_screen->monitors[monitor_num].geometry.height == x_monitors[i].height)
810 g_hash_table_insert (x11_screen->xinerama_matches,
811 GINT_TO_POINTER (monitor_num),
812 GINT_TO_POINTER (i));
817 #endif /* HAVE_SOLARIS_XINERAMA */
823 init_xfree_xinerama_indices (GdkX11Screen *x11_screen)
825 #ifdef HAVE_XFREE_XINERAMA
826 XineramaScreenInfo *x_monitors;
831 if (!XineramaIsActive (x11_screen->xdisplay))
834 x_monitors = XineramaQueryScreens (x11_screen->xdisplay, &x_n_monitors);
835 if (x_n_monitors <= 0 || x_monitors == NULL)
843 for (monitor_num = 0; monitor_num < x11_screen->n_monitors; ++monitor_num)
845 for (i = 0; i < x_n_monitors; ++i)
847 if (x11_screen->monitors[monitor_num].geometry.x == x_monitors[i].x_org &&
848 x11_screen->monitors[monitor_num].geometry.y == x_monitors[i].y_org &&
849 x11_screen->monitors[monitor_num].geometry.width == x_monitors[i].width &&
850 x11_screen->monitors[monitor_num].geometry.height == x_monitors[i].height)
852 g_hash_table_insert (x11_screen->xinerama_matches,
853 GINT_TO_POINTER (monitor_num),
854 GINT_TO_POINTER (i));
860 #endif /* HAVE_XFREE_XINERAMA */
866 init_xinerama_indices (GdkX11Screen *x11_screen)
868 int opcode, firstevent, firsterror;
870 x11_screen->xinerama_matches = g_hash_table_new (g_direct_hash, g_direct_equal);
871 if (XQueryExtension (x11_screen->xdisplay, "XINERAMA",
872 &opcode, &firstevent, &firsterror))
874 x11_screen->xinerama_matches = g_hash_table_new (g_direct_hash, g_direct_equal);
876 /* Solaris Xinerama first, then XFree/Xorg Xinerama
877 * to match the order in init_multihead()
879 if (init_solaris_xinerama_indices (x11_screen) == FALSE)
880 init_xfree_xinerama_indices (x11_screen);
885 _gdk_x11_screen_get_xinerama_index (GdkScreen *screen,
888 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
891 g_return_val_if_fail (monitor_num < x11_screen->n_monitors, -1);
893 if (x11_screen->xinerama_matches == NULL)
894 init_xinerama_indices (x11_screen);
896 if (g_hash_table_lookup_extended (x11_screen->xinerama_matches, GINT_TO_POINTER (monitor_num), NULL, &val))
897 return (GPOINTER_TO_INT(val));
903 _gdk_x11_screen_get_edge_monitors (GdkScreen *screen,
909 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
910 gint top_most_pos = HeightOfScreen (GDK_X11_SCREEN (screen)->xscreen);
911 gint left_most_pos = WidthOfScreen (GDK_X11_SCREEN (screen)->xscreen);
912 gint bottom_most_pos = 0;
913 gint right_most_pos = 0;
916 for (monitor_num = 0; monitor_num < x11_screen->n_monitors; monitor_num++)
918 gint monitor_x = x11_screen->monitors[monitor_num].geometry.x;
919 gint monitor_y = x11_screen->monitors[monitor_num].geometry.y;
920 gint monitor_max_x = monitor_x + x11_screen->monitors[monitor_num].geometry.width;
921 gint monitor_max_y = monitor_y + x11_screen->monitors[monitor_num].geometry.height;
923 if (left && left_most_pos > monitor_x)
925 left_most_pos = monitor_x;
928 if (right && right_most_pos < monitor_max_x)
930 right_most_pos = monitor_max_x;
931 *right = monitor_num;
933 if (top && top_most_pos > monitor_y)
935 top_most_pos = monitor_y;
938 if (bottom && bottom_most_pos < monitor_max_y)
940 bottom_most_pos = monitor_max_y;
941 *bottom = monitor_num;
947 deinit_multihead (GdkScreen *screen)
949 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
951 free_monitors (x11_screen->monitors, x11_screen->n_monitors);
952 g_clear_pointer (&x11_screen->xinerama_matches, g_hash_table_destroy);
954 x11_screen->n_monitors = 0;
955 x11_screen->monitors = NULL;
959 compare_monitor (GdkX11Monitor *m1,
962 if (m1->geometry.x != m2->geometry.x ||
963 m1->geometry.y != m2->geometry.y ||
964 m1->geometry.width != m2->geometry.width ||
965 m1->geometry.height != m2->geometry.height)
968 if (m1->width_mm != m2->width_mm ||
969 m1->height_mm != m2->height_mm)
972 if (g_strcmp0 (m1->output_name, m2->output_name) != 0)
975 if (g_strcmp0 (m1->manufacturer, m2->manufacturer) != 0)
982 compare_monitors (GdkX11Monitor *monitors1, gint n_monitors1,
983 GdkX11Monitor *monitors2, gint n_monitors2)
987 if (n_monitors1 != n_monitors2)
990 for (i = 0; i < n_monitors1; i++)
992 if (!compare_monitor (monitors1 + i, monitors2 + i))
1000 init_multihead (GdkScreen *screen)
1002 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
1003 int opcode, firstevent, firsterror;
1005 /* There are four different implementations of multihead support:
1007 * 1. Fake Xinerama for debugging purposes
1009 * 3. Solaris Xinerama
1010 * 4. XFree86/Xorg Xinerama
1012 * We use them in that order.
1014 if (init_fake_xinerama (screen))
1017 if (init_randr13 (screen))
1020 if (XQueryExtension (GDK_SCREEN_XDISPLAY (screen), "XINERAMA",
1021 &opcode, &firstevent, &firsterror))
1023 if (init_solaris_xinerama (screen))
1026 if (init_xfree_xinerama (screen))
1030 /* No multihead support of any kind for this screen */
1031 x11_screen->n_monitors = 1;
1032 x11_screen->monitors = g_new0 (GdkX11Monitor, 1);
1033 x11_screen->primary_monitor = 0;
1035 init_monitor_geometry (x11_screen->monitors, 0, 0,
1036 WidthOfScreen (x11_screen->xscreen),
1037 HeightOfScreen (x11_screen->xscreen));
1041 _gdk_x11_screen_new (GdkDisplay *display,
1045 GdkX11Screen *x11_screen;
1046 GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
1048 screen = g_object_new (GDK_TYPE_X11_SCREEN, NULL);
1050 x11_screen = GDK_X11_SCREEN (screen);
1051 x11_screen->display = display;
1052 x11_screen->xdisplay = display_x11->xdisplay;
1053 x11_screen->xscreen = ScreenOfDisplay (display_x11->xdisplay, screen_number);
1054 x11_screen->screen_num = screen_number;
1055 x11_screen->xroot_window = RootWindow (display_x11->xdisplay,screen_number);
1056 x11_screen->wmspec_check_window = None;
1057 /* we want this to be always non-null */
1058 x11_screen->window_manager_name = g_strdup ("unknown");
1060 init_multihead (screen);
1061 init_randr_support (screen);
1063 _gdk_x11_screen_init_visuals (screen);
1064 _gdk_x11_screen_init_root_window (screen);
1070 * It is important that we first request the selection
1071 * notification, and then setup the initial state of
1072 * is_composited to avoid a race condition here.
1075 _gdk_x11_screen_setup (GdkScreen *screen)
1077 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
1079 x11_screen->cm_selection_atom = make_cm_atom (x11_screen->screen_num);
1080 gdk_display_request_selection_notification (x11_screen->display,
1081 x11_screen->cm_selection_atom);
1082 x11_screen->is_composited = check_is_composited (x11_screen->display, x11_screen);
1086 gdk_x11_screen_is_composited (GdkScreen *screen)
1088 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
1090 return x11_screen->is_composited;
1094 init_randr_support (GdkScreen *screen)
1096 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
1098 /* NB: This is also needed for XSettings, so don't remove. */
1099 XSelectInput (GDK_SCREEN_XDISPLAY (screen),
1100 x11_screen->xroot_window,
1101 StructureNotifyMask);
1104 if (!GDK_X11_DISPLAY (gdk_screen_get_display (screen))->have_randr12)
1107 XRRSelectInput (GDK_SCREEN_XDISPLAY (screen),
1108 x11_screen->xroot_window,
1109 RRScreenChangeNotifyMask
1110 | RRCrtcChangeNotifyMask
1111 | RROutputPropertyNotifyMask);
1116 process_monitors_change (GdkScreen *screen)
1118 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
1120 gint primary_monitor;
1121 GdkX11Monitor *monitors;
1124 primary_monitor = x11_screen->primary_monitor;
1125 n_monitors = x11_screen->n_monitors;
1126 monitors = x11_screen->monitors;
1128 x11_screen->n_monitors = 0;
1129 x11_screen->monitors = NULL;
1131 init_multihead (screen);
1134 !compare_monitors (monitors, n_monitors,
1135 x11_screen->monitors, x11_screen->n_monitors) ||
1136 x11_screen->primary_monitor != primary_monitor;
1139 free_monitors (monitors, n_monitors);
1142 g_signal_emit_by_name (screen, "monitors-changed");
1146 _gdk_x11_screen_size_changed (GdkScreen *screen,
1151 GdkX11Display *display_x11;
1154 width = gdk_screen_get_width (screen);
1155 height = gdk_screen_get_height (screen);
1158 display_x11 = GDK_X11_DISPLAY (gdk_screen_get_display (screen));
1160 if (display_x11->have_randr13 && event->type == ConfigureNotify)
1163 XRRUpdateConfiguration (event);
1165 if (event->type == ConfigureNotify)
1167 XConfigureEvent *rcevent = (XConfigureEvent *) event;
1168 Screen *xscreen = gdk_x11_screen_get_xscreen (screen);
1170 xscreen->width = rcevent->width;
1171 xscreen->height = rcevent->height;
1177 process_monitors_change (screen);
1179 if (width != gdk_screen_get_width (screen) ||
1180 height != gdk_screen_get_height (screen))
1181 g_signal_emit_by_name (screen, "size-changed");
1185 _gdk_x11_screen_window_manager_changed (GdkScreen *screen)
1187 g_signal_emit (screen, signals[WINDOW_MANAGER_CHANGED], 0);
1191 _gdk_x11_screen_process_owner_change (GdkScreen *screen,
1195 XFixesSelectionNotifyEvent *selection_event = (XFixesSelectionNotifyEvent *)event;
1196 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
1197 Atom xcm_selection_atom = gdk_x11_atom_to_xatom_for_display (x11_screen->display,
1198 x11_screen->cm_selection_atom);
1200 if (selection_event->selection == xcm_selection_atom)
1202 gboolean composited = selection_event->owner != None;
1204 if (composited != x11_screen->is_composited)
1206 x11_screen->is_composited = composited;
1208 g_signal_emit_by_name (screen, "composited-changed");
1215 substitute_screen_number (const gchar *display_name,
1221 str = g_string_new (display_name);
1223 p = strrchr (str->str, '.');
1224 if (p && p > strchr (str->str, ':'))
1225 g_string_truncate (str, p - str->str);
1227 g_string_append_printf (str, ".%d", screen_number);
1229 return g_string_free (str, FALSE);
1233 gdk_x11_screen_make_display_name (GdkScreen *screen)
1235 const gchar *old_display;
1237 old_display = gdk_display_get_name (gdk_screen_get_display (screen));
1239 return substitute_screen_number (old_display,
1240 gdk_screen_get_number (screen));
1244 gdk_x11_screen_get_active_window (GdkScreen *screen)
1246 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
1247 GdkWindow *ret = NULL;
1250 gulong nitems_return;
1251 gulong bytes_after_return;
1252 guchar *data = NULL;
1254 if (!gdk_x11_screen_supports_net_wm_hint (screen,
1255 gdk_atom_intern_static_string ("_NET_ACTIVE_WINDOW")))
1258 if (XGetWindowProperty (x11_screen->xdisplay, x11_screen->xroot_window,
1259 gdk_x11_get_xatom_by_name_for_display (x11_screen->display,
1260 "_NET_ACTIVE_WINDOW"),
1261 0, 1, False, XA_WINDOW, &type_return,
1262 &format_return, &nitems_return,
1263 &bytes_after_return, &data)
1266 if ((type_return == XA_WINDOW) && (format_return == 32) && (data))
1268 Window window = *(Window *) data;
1272 ret = gdk_x11_window_foreign_new_for_display (x11_screen->display,
1285 gdk_x11_screen_get_window_stack (GdkScreen *screen)
1287 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
1291 gulong nitems_return;
1292 gulong bytes_after_return;
1293 guchar *data = NULL;
1295 if (!gdk_x11_screen_supports_net_wm_hint (screen,
1296 gdk_atom_intern_static_string ("_NET_CLIENT_LIST_STACKING")))
1299 if (XGetWindowProperty (x11_screen->xdisplay, x11_screen->xroot_window,
1300 gdk_x11_get_xatom_by_name_for_display (x11_screen->display,
1301 "_NET_CLIENT_LIST_STACKING"),
1302 0, G_MAXLONG, False, XA_WINDOW, &type_return,
1303 &format_return, &nitems_return,
1304 &bytes_after_return, &data)
1307 if ((type_return == XA_WINDOW) && (format_return == 32) &&
1308 (data) && (nitems_return > 0))
1310 gulong *stack = (gulong *) data;
1314 for (i = 0; i < nitems_return; i++)
1316 win = gdk_x11_window_foreign_new_for_display (x11_screen->display,
1320 ret = g_list_append (ret, win);
1332 check_transform (const gchar *xsettings_name,
1336 if (!g_value_type_transformable (src_type, dest_type))
1338 g_warning ("Cannot transform xsetting %s of type %s to type %s\n",
1340 g_type_name (src_type),
1341 g_type_name (dest_type));
1349 gdk_x11_screen_get_setting (GdkScreen *screen,
1353 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
1354 const XSettingsSetting *setting;
1355 gboolean success = FALSE;
1356 GValue tmp_val = G_VALUE_INIT;
1358 setting = xsettings_client_get_setting (x11_screen->xsettings_client, name);
1359 if (setting == NULL)
1362 switch (setting->type)
1364 case XSETTINGS_TYPE_INT:
1365 if (check_transform (name, G_TYPE_INT, G_VALUE_TYPE (value)))
1367 g_value_init (&tmp_val, G_TYPE_INT);
1368 g_value_set_int (&tmp_val, setting->data.v_int);
1369 g_value_transform (&tmp_val, value);
1374 case XSETTINGS_TYPE_STRING:
1375 if (check_transform (name, G_TYPE_STRING, G_VALUE_TYPE (value)))
1377 g_value_init (&tmp_val, G_TYPE_STRING);
1378 g_value_set_string (&tmp_val, setting->data.v_string);
1379 g_value_transform (&tmp_val, value);
1384 case XSETTINGS_TYPE_COLOR:
1385 if (!check_transform (name, GDK_TYPE_RGBA, G_VALUE_TYPE (value)))
1389 g_value_init (&tmp_val, GDK_TYPE_RGBA);
1391 rgba.red = setting->data.v_color.red / 65535.0;
1392 rgba.green = setting->data.v_color.green / 65535.0;
1393 rgba.blue = setting->data.v_color.blue / 65535.0;
1394 rgba.alpha = setting->data.v_color.alpha / 65535.0;
1396 g_value_set_boxed (&tmp_val, &rgba);
1398 g_value_transform (&tmp_val, value);
1405 g_value_unset (&tmp_val);
1411 return _gdk_x11_get_xft_setting (screen, name, value);
1415 cleanup_atoms(gpointer data)
1417 NetWmSupportedAtoms *supported_atoms = data;
1418 if (supported_atoms->atoms)
1419 XFree (supported_atoms->atoms);
1420 g_free (supported_atoms);
1424 get_net_supporting_wm_check (GdkX11Screen *screen,
1427 GdkDisplay *display;
1435 display = screen->display;
1440 gdk_x11_display_error_trap_push (display);
1441 XGetWindowProperty (screen->xdisplay, window,
1442 gdk_x11_get_xatom_by_name_for_display (display, "_NET_SUPPORTING_WM_CHECK"),
1443 0, G_MAXLONG, False, XA_WINDOW, &type, &format,
1444 &n_items, &bytes_after, &data);
1445 gdk_x11_display_error_trap_pop_ignored (display);
1447 if (type == XA_WINDOW)
1448 value = *(Window *)data;
1457 fetch_net_wm_check_window (GdkScreen *screen)
1459 GdkX11Screen *x11_screen;
1460 GdkDisplay *display;
1465 x11_screen = GDK_X11_SCREEN (screen);
1466 display = x11_screen->display;
1468 g_return_if_fail (GDK_X11_DISPLAY (display)->trusted_client);
1470 if (x11_screen->wmspec_check_window != None)
1471 return; /* already have it */
1473 g_get_current_time (&tv);
1475 if (ABS (tv.tv_sec - x11_screen->last_wmspec_check_time) < 15)
1476 return; /* we've checked recently */
1478 window = get_net_supporting_wm_check (x11_screen, x11_screen->xroot_window);
1482 if (window != get_net_supporting_wm_check (x11_screen, window))
1485 gdk_x11_display_error_trap_push (display);
1487 /* Find out if this WM goes away, so we can reset everything. */
1488 XSelectInput (x11_screen->xdisplay, window, StructureNotifyMask);
1490 error = gdk_x11_display_error_trap_pop (display);
1493 /* We check the window property again because after XGetWindowProperty()
1494 * and before XSelectInput() the window may have been recycled in such a
1495 * way that XSelectInput() doesn't fail but the window is no longer what
1498 if (window != get_net_supporting_wm_check (x11_screen, window))
1501 x11_screen->wmspec_check_window = window;
1502 x11_screen->last_wmspec_check_time = tv.tv_sec;
1503 x11_screen->need_refetch_net_supported = TRUE;
1504 x11_screen->need_refetch_wm_name = TRUE;
1506 /* Careful, reentrancy */
1507 _gdk_x11_screen_window_manager_changed (screen);
1512 * gdk_x11_screen_supports_net_wm_hint:
1513 * @screen: (type GdkX11Screen): the relevant #GdkScreen.
1514 * @property: a property atom.
1516 * This function is specific to the X11 backend of GDK, and indicates
1517 * whether the window manager supports a certain hint from the
1518 * Extended Window Manager Hints Specification. You can find this
1520 * <ulink url="http://www.freedesktop.org">http://www.freedesktop.org</ulink>.
1522 * When using this function, keep in mind that the window manager
1523 * can change over time; so you shouldn't use this function in
1524 * a way that impacts persistent application state. A common bug
1525 * is that your application can start up before the window manager
1526 * does when the user logs in, and before the window manager starts
1527 * gdk_x11_screen_supports_net_wm_hint() will return %FALSE for every property.
1528 * You can monitor the window_manager_changed signal on #GdkScreen to detect
1529 * a window manager change.
1531 * Return value: %TRUE if the window manager supports @property
1536 gdk_x11_screen_supports_net_wm_hint (GdkScreen *screen,
1540 GdkX11Screen *x11_screen;
1541 NetWmSupportedAtoms *supported_atoms;
1542 GdkDisplay *display;
1544 g_return_val_if_fail (GDK_IS_SCREEN (screen), FALSE);
1546 x11_screen = GDK_X11_SCREEN (screen);
1547 display = x11_screen->display;
1549 if (!G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
1552 supported_atoms = g_object_get_data (G_OBJECT (screen), "gdk-net-wm-supported-atoms");
1553 if (!supported_atoms)
1555 supported_atoms = g_new0 (NetWmSupportedAtoms, 1);
1556 g_object_set_data_full (G_OBJECT (screen), "gdk-net-wm-supported-atoms", supported_atoms, cleanup_atoms);
1559 fetch_net_wm_check_window (screen);
1561 if (x11_screen->wmspec_check_window == None)
1564 if (x11_screen->need_refetch_net_supported)
1566 /* WM has changed since we last got the supported list,
1573 x11_screen->need_refetch_net_supported = FALSE;
1575 if (supported_atoms->atoms)
1576 XFree (supported_atoms->atoms);
1578 supported_atoms->atoms = NULL;
1579 supported_atoms->n_atoms = 0;
1581 XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), x11_screen->xroot_window,
1582 gdk_x11_get_xatom_by_name_for_display (display, "_NET_SUPPORTED"),
1583 0, G_MAXLONG, False, XA_ATOM, &type, &format,
1584 &supported_atoms->n_atoms, &bytes_after,
1585 (guchar **)&supported_atoms->atoms);
1587 if (type != XA_ATOM)
1591 if (supported_atoms->atoms == NULL)
1595 while (i < supported_atoms->n_atoms)
1597 if (supported_atoms->atoms[i] == gdk_x11_atom_to_xatom_for_display (display, property))
1607 _gdk_x11_screen_init_events (GdkScreen *screen)
1609 GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
1611 /* Keep a flag to avoid extra notifies that we don't need
1613 x11_screen->xsettings_in_init = TRUE;
1614 x11_screen->xsettings_client = xsettings_client_new (screen);
1615 x11_screen->xsettings_in_init = FALSE;
1619 * gdk_x11_screen_get_window_manager_name:
1620 * @screen: (type GdkX11Screen): a #GdkScreen
1622 * Returns the name of the window manager for @screen.
1624 * Return value: the name of the window manager screen @screen, or
1625 * "unknown" if the window manager is unknown. The string is owned by GDK
1626 * and should not be freed.
1631 gdk_x11_screen_get_window_manager_name (GdkScreen *screen)
1633 GdkX11Screen *x11_screen;
1634 GdkDisplay *display;
1636 x11_screen = GDK_X11_SCREEN (screen);
1637 display = x11_screen->display;
1639 if (!G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
1640 return x11_screen->window_manager_name;
1642 fetch_net_wm_check_window (screen);
1644 if (x11_screen->need_refetch_wm_name)
1646 /* Get the name of the window manager */
1647 x11_screen->need_refetch_wm_name = FALSE;
1649 g_free (x11_screen->window_manager_name);
1650 x11_screen->window_manager_name = g_strdup ("unknown");
1652 if (x11_screen->wmspec_check_window != None)
1662 gdk_x11_display_error_trap_push (display);
1664 XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
1665 x11_screen->wmspec_check_window,
1666 gdk_x11_get_xatom_by_name_for_display (display,
1668 0, G_MAXLONG, False,
1669 gdk_x11_get_xatom_by_name_for_display (display,
1672 &n_items, &bytes_after,
1675 gdk_x11_display_error_trap_pop_ignored (display);
1679 g_free (x11_screen->window_manager_name);
1680 x11_screen->window_manager_name = g_strdup (name);
1686 return GDK_X11_SCREEN (screen)->window_manager_name;
1690 gdk_x11_screen_class_init (GdkX11ScreenClass *klass)
1692 GObjectClass *object_class = G_OBJECT_CLASS (klass);
1693 GdkScreenClass *screen_class = GDK_SCREEN_CLASS (klass);
1695 object_class->dispose = gdk_x11_screen_dispose;
1696 object_class->finalize = gdk_x11_screen_finalize;
1698 screen_class->get_display = gdk_x11_screen_get_display;
1699 screen_class->get_width = gdk_x11_screen_get_width;
1700 screen_class->get_height = gdk_x11_screen_get_height;
1701 screen_class->get_width_mm = gdk_x11_screen_get_width_mm;
1702 screen_class->get_height_mm = gdk_x11_screen_get_height_mm;
1703 screen_class->get_number = gdk_x11_screen_get_number;
1704 screen_class->get_root_window = gdk_x11_screen_get_root_window;
1705 screen_class->get_n_monitors = gdk_x11_screen_get_n_monitors;
1706 screen_class->get_primary_monitor = gdk_x11_screen_get_primary_monitor;
1707 screen_class->get_monitor_width_mm = gdk_x11_screen_get_monitor_width_mm;
1708 screen_class->get_monitor_height_mm = gdk_x11_screen_get_monitor_height_mm;
1709 screen_class->get_monitor_plug_name = gdk_x11_screen_get_monitor_plug_name;
1710 screen_class->get_monitor_geometry = gdk_x11_screen_get_monitor_geometry;
1711 screen_class->get_monitor_workarea = gdk_x11_screen_get_monitor_workarea;
1712 screen_class->get_system_visual = _gdk_x11_screen_get_system_visual;
1713 screen_class->get_rgba_visual = gdk_x11_screen_get_rgba_visual;
1714 screen_class->is_composited = gdk_x11_screen_is_composited;
1715 screen_class->make_display_name = gdk_x11_screen_make_display_name;
1716 screen_class->get_active_window = gdk_x11_screen_get_active_window;
1717 screen_class->get_window_stack = gdk_x11_screen_get_window_stack;
1718 screen_class->get_setting = gdk_x11_screen_get_setting;
1719 screen_class->visual_get_best_depth = _gdk_x11_screen_visual_get_best_depth;
1720 screen_class->visual_get_best_type = _gdk_x11_screen_visual_get_best_type;
1721 screen_class->visual_get_best = _gdk_x11_screen_visual_get_best;
1722 screen_class->visual_get_best_with_depth = _gdk_x11_screen_visual_get_best_with_depth;
1723 screen_class->visual_get_best_with_type = _gdk_x11_screen_visual_get_best_with_type;
1724 screen_class->visual_get_best_with_both = _gdk_x11_screen_visual_get_best_with_both;
1725 screen_class->query_depths = _gdk_x11_screen_query_depths;
1726 screen_class->query_visual_types = _gdk_x11_screen_query_visual_types;
1727 screen_class->list_visuals = _gdk_x11_screen_list_visuals;
1729 signals[WINDOW_MANAGER_CHANGED] =
1730 g_signal_new (g_intern_static_string ("window-manager-changed"),
1731 G_OBJECT_CLASS_TYPE (object_class),
1733 G_STRUCT_OFFSET (GdkX11ScreenClass, window_manager_changed),
1735 g_cclosure_marshal_VOID__VOID,