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
  37 void extensions_query_all()
  38 {
  39     gint junk;
  40     (void)junk;
  41
  42 #ifdef XKB
  43     extensions_xkb =
  44         XkbQueryExtension(ob_display, &junk, &extensions_xkb_event_basep,
  45                           &junk, NULL, NULL);
  46     if (!extensions_xkb)
  47         ob_debug("XKB extension is not present on the server\n");
  48 #endif
  49
  50 #ifdef SHAPE
  51     extensions_shape =
  52         XShapeQueryExtension(ob_display, &extensions_shape_event_basep,
  53                              &junk);
  54     if (!extensions_shape)
  55         ob_debug("X Shape extension is not present on the server\n");
  56 #endif
  57
  58 #ifdef XINERAMA
  59     extensions_xinerama =
  60         XineramaQueryExtension(ob_display, &extensions_xinerama_event_basep,
  61                                &junk) && XineramaIsActive(ob_display);
  62     if (!extensions_xinerama)
  63         ob_debug("Xinerama extension is not present on the server\n");
  64 #endif
  65
  66 #ifdef XRANDR
  67     extensions_randr =
  68         XRRQueryExtension(ob_display, &extensions_randr_event_basep,
  69                           &junk);
  70     if (!extensions_randr)
  71         ob_debug("XRandR extension is not present on the server\n");
  72 #endif
  73
  74 #ifdef SYNC
  75     extensions_sync =
  76         XSyncQueryExtension(ob_display, &extensions_sync_event_basep,
  77                             &junk) &&
  78         XSyncInitialize(ob_display, &junk, &junk);
  79     if (!extensions_sync)
  80         ob_debug("X Sync extension is not present on the server or is an "
  81                  "incompatible version\n");
  82 #endif
  83 }
  84
  85 void extensions_xinerama_screens(Rect **xin_areas, guint *nxin)
  86 {
  87     guint i;
  88     gint l, r, t, b;
  89 #ifdef XINERAMA
  90     if (extensions_xinerama) {
  91         guint i;
  92         gint n;
  93         XineramaScreenInfo *info = XineramaQueryScreens(ob_display, &n);
  94         *nxin = n;
  95         *xin_areas = g_new(Rect, *nxin + 1);
  96         for (i = 0; i < *nxin; ++i)
  97             RECT_SET((*xin_areas)[i], info[i].x_org, info[i].y_org,
  98                      info[i].width, info[i].height);
  99         XFree(info);
 100     } else
 101 #endif
 102     if (ob_debug_xinerama) {
 103         gint w = WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen));
 104         gint h = HeightOfScreen(ScreenOfDisplay(ob_display, ob_screen));
 105         *nxin = 2;
 106         *xin_areas = g_new(Rect, *nxin + 1);
 107         RECT_SET((*xin_areas)[0], 0, 0, w/2, h);
 108         RECT_SET((*xin_areas)[1], w/2, 0, w-(w/2), h);
 109     }
 110     else {
 111         *nxin = 1;
 112         *xin_areas = g_new(Rect, *nxin + 1);
 113         RECT_SET((*xin_areas)[0], 0, 0,
 114                  WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen)),
 115                  HeightOfScreen(ScreenOfDisplay(ob_display, ob_screen)));
 116     }
 117
 118     /* returns one extra with the total area in it */
 119     l = (*xin_areas)[0].x;
 120     t = (*xin_areas)[0].y;
 121     r = (*xin_areas)[0].x + (*xin_areas)[0].width - 1;
 122     b = (*xin_areas)[0].y + (*xin_areas)[0].height - 1;
 123     for (i = 1; i < *nxin; ++i) {
 124         l = MIN(l, (*xin_areas)[i].x);
 125         t = MIN(l, (*xin_areas)[i].y);
 126         r = MAX(r, (*xin_areas)[i].x + (*xin_areas)[i].width - 1);
 127         b = MAX(b, (*xin_areas)[i].y + (*xin_areas)[i].height - 1);
 128     }
 129     RECT_SET((*xin_areas)[*nxin], l, t, r - l + 1, b - t + 1);
 130 }