Dogcows Code - chaz/openbox/blob - otk/screeninfo.cc

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2
   3 #include "config.h"
   4
   5 extern "C" {
   6 #include <X11/Xlib.h>
   7 #include <X11/Xutil.h>
   8 }
   9
  10 #include "screeninfo.hh"
  11 #include "display.hh"
  12 #include "util.hh"
  13
  14 using std::string;
  15
  16 namespace otk {
  17
  18 ScreenInfo::ScreenInfo(int num) {
  19   assert(num >= 0 && num < ScreenCount(**display));
  20
  21   _screen = num;
  22
  23   _root_window = RootWindow(**display, _screen);
  24
  25   _size = Size(WidthOfScreen(ScreenOfDisplay(**display,
  26                                              _screen)),
  27                HeightOfScreen(ScreenOfDisplay(**display,
  28                                               _screen)));
  29   // get the default display string and strip the screen number
  30   string default_string = DisplayString(**display);
  31   const string::size_type pos = default_string.rfind(".");
  32   if (pos != string::npos)
  33     default_string.resize(pos);
  34
  35   _display_string = string("DISPLAY=") + default_string + '.' +
  36     itostring(static_cast<unsigned long>(_screen));
  37
  38 #if 0 //def    XINERAMA
  39   _xinerama_active = False;
  40
  41   if (d->hasXineramaExtensions()) {
  42     if (d->getXineramaMajorVersion() == 1) {
  43       // we know the version 1(.1?) protocol
  44
  45       /*
  46         in this version of Xinerama, we can't query on a per-screen basis, but
  47         in future versions we should be able, so the 'activeness' is checked
  48         on a pre-screen basis anyways.
  49       */
  50       if (XineramaIsActive(**display)) {
  51         /*
  52           If Xinerama is being used, there there is only going to be one screen
  53           present. We still, of course, want to use the screen class, but that
  54           is why no screen number is used in this function call. There should
  55           never be more than one screen present with Xinerama active.
  56         */
  57         int num;
  58         XineramaScreenInfo *info = XineramaQueryScreens(**display, &num);
  59         if (num > 0 && info) {
  60           _xinerama_areas.reserve(num);
  61           for (int i = 0; i < num; ++i) {
  62             _xinerama_areas.push_back(Rect(info[i].x_org, info[i].y_org,
  63                                            info[i].width, info[i].height));
  64           }
  65           XFree(info);
  66
  67           // if we can't find any xinerama regions, then we act as if it is not
  68           // active, even though it said it was
  69           _xinerama_active = true;
  70         }
  71       }
  72     }
  73   }
  74 #else
  75   _xinerama_active = false;
  76 #endif // XINERAMA
  77   if (!_xinerama_active)
  78     _xinerama_areas.push_back(Rect(Point(0, 0), _size));
  79 }
  80
  81 }