Dogcows Code - chaz/openbox/blob - openbox/extensions.c

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    extensions.c for the Openbox window manager
   4    Copyright (c) 2006        Mikael Magnusson
   5    Copyright (c) 2003-2007   Dana Jansens
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    See the COPYING file for a copy of the GNU General Public License.
  18 */
  19
  20 #include "openbox.h"
  21 #include "geom.h"
  22 #include "extensions.h"
  23 #include "screen.h"
  24 #include "debug.h"
  25
  26 gboolean extensions_xkb       = FALSE;
  27 gint     extensions_xkb_event_basep;
  28 gboolean extensions_shape     = FALSE;
  29 gint     extensions_shape_event_basep;
  30 gboolean extensions_xinerama  = FALSE;
  31 gint     extensions_xinerama_event_basep;
  32 gboolean extensions_randr     = FALSE;
  33 gint     extensions_randr_event_basep;
  34 gboolean extensions_sync      = FALSE;
  35 gint     extensions_sync_event_basep;
  36 gboolean extensions_comp      = FALSE;
  37 gint     extensions_comp_event_basep;
  38
  39 void extensions_query_all()
  40 {
  41     gint junk;
  42     (void)junk;
  43
  44 #ifdef XKB
  45     extensions_xkb =
  46         XkbQueryExtension(ob_display, &junk, &extensions_xkb_event_basep,
  47                           &junk, NULL, NULL);
  48     if (!extensions_xkb)
  49         ob_debug("XKB extension is not present on the server\n");
  50 #endif
  51
  52 #ifdef SHAPE
  53     extensions_shape =
  54         XShapeQueryExtension(ob_display, &extensions_shape_event_basep,
  55                              &junk);
  56     if (!extensions_shape)
  57         ob_debug("X Shape extension is not present on the server\n");
  58 #endif
  59
  60 #ifdef XINERAMA
  61     extensions_xinerama =
  62         XineramaQueryExtension(ob_display, &extensions_xinerama_event_basep,
  63                                &junk) && XineramaIsActive(ob_display);
  64     if (!extensions_xinerama)
  65         ob_debug("Xinerama extension is not present on the server\n");
  66 #endif
  67
  68 #ifdef XRANDR
  69     extensions_randr =
  70         XRRQueryExtension(ob_display, &extensions_randr_event_basep,
  71                           &junk);
  72     if (!extensions_randr)
  73         ob_debug("XRandR extension is not present on the server\n");
  74 #endif
  75
  76 #ifdef SYNC
  77     extensions_sync =
  78         XSyncQueryExtension(ob_display, &extensions_sync_event_basep,
  79                             &junk) &&
  80         XSyncInitialize(ob_display, &junk, &junk);
  81     if (!extensions_sync)
  82         ob_debug("X Sync extension is not present on the server or is an "
  83                  "incompatible version\n");
  84 #endif
  85
  86 #ifdef USE_XCOMPOSITE
  87     extensions_comp =
  88         XRRQueryExtension(ob_display, &extensions_comp_event_basep,
  89                           &junk);
  90     if (!extensions_comp)
  91         ob_debug("X Composite extension is not present on the server\n");
  92 #endif
  93 }
  94
  95 void extensions_xinerama_screens(Rect **xin_areas, guint *nxin)
  96 {
  97     guint i;
  98     gint l, r, t, b;
  99 #ifdef XINERAMA
 100     if (extensions_xinerama) {
 101         guint i;
 102         gint n;
 103         XineramaScreenInfo *info = XineramaQueryScreens(ob_display, &n);
 104         *nxin = n;
 105         *xin_areas = g_new(Rect, *nxin + 1);
 106         for (i = 0; i < *nxin; ++i)
 107             RECT_SET((*xin_areas)[i], info[i].x_org, info[i].y_org,
 108                      info[i].width, info[i].height);
 109         XFree(info);
 110     } else
 111 #endif
 112     if (ob_debug_xinerama) {
 113         gint w = WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen));
 114         gint h = HeightOfScreen(ScreenOfDisplay(ob_display, ob_screen));
 115         *nxin = 2;
 116         *xin_areas = g_new(Rect, *nxin + 1);
 117         RECT_SET((*xin_areas)[0], 0, 0, w/2, h);
 118         RECT_SET((*xin_areas)[1], w/2, 0, w-(w/2), h);
 119     }
 120     else {
 121         *nxin = 1;
 122         *xin_areas = g_new(Rect, *nxin + 1);
 123         RECT_SET((*xin_areas)[0], 0, 0,
 124                  WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen)),
 125                  HeightOfScreen(ScreenOfDisplay(ob_display, ob_screen)));
 126     }
 127
 128     /* returns one extra with the total area in it */
 129     l = (*xin_areas)[0].x;
 130     t = (*xin_areas)[0].y;
 131     r = (*xin_areas)[0].x + (*xin_areas)[0].width - 1;
 132     b = (*xin_areas)[0].y + (*xin_areas)[0].height - 1;
 133     for (i = 1; i < *nxin; ++i) {
 134         l = MIN(l, (*xin_areas)[i].x);
 135         t = MIN(l, (*xin_areas)[i].y);
 136         r = MAX(r, (*xin_areas)[i].x + (*xin_areas)[i].width - 1);
 137         b = MAX(b, (*xin_areas)[i].y + (*xin_areas)[i].height - 1);
 138     }
 139     RECT_SET((*xin_areas)[*nxin], l, t, r - l + 1, b - t + 1);
 140 }