source/graphics/display.cpp

   1 #include <cmath>
   2 #include "display.h"
   3 #include "display_private.h"
   4 #include "window.h"
   5
   6 using namespace std;
   7
   8 namespace Msp {
   9 namespace Graphics {
  10
  11 void Display::add_window(Window &wnd)
  12 {
  13         priv->windows[wnd.get_private().window] = &wnd;
  14 }
  15
  16 void Display::remove_window(Window &wnd)
  17 {
  18         priv->windows.erase(wnd.get_private().window);
  19 }
  20
  21 const VideoMode &Display::get_desktop_mode() const
  22 {
  23         if(!primary_monitor || !primary_monitor->desktop_mode)
  24                 throw logic_error("no desktop mode");
  25         return *primary_monitor->desktop_mode;
  26 }
  27
  28 void Display::restore_mode()
  29 {
  30         for(list<Monitor>::const_iterator i=monitors.begin(); i!=monitors.end(); ++i)
  31                 if(i->desktop_mode)
  32                         set_mode(*i->desktop_mode, false);
  33 }
  34
  35 const VideoMode *Display::find_mode(const VideoMode &mode, float rate_tolerance) const
  36 {
  37         const VideoMode *closest = 0;
  38         float rate_diff = mode.rate;
  39         for(list<VideoMode>::const_iterator i=modes.begin(); i!=modes.end(); ++i)
  40         {
  41                 if(mode.monitor && i->monitor!=mode.monitor)
  42                         continue;
  43                 if(mode.rate && (i->rate<mode.rate-rate_tolerance || i->rate>mode.rate+rate_tolerance))
  44                         continue;
  45                 if(i->width!=mode.width || i->height!=mode.height)
  46                         continue;
  47
  48                 if(mode.rate)
  49                 {
  50                         float d = abs(i->rate-mode.rate);
  51                         if(d<rate_diff)
  52                         {
  53                                 closest = &*i;
  54                                 rate_diff = d;
  55                         }
  56                 }
  57                 else
  58                         return &*i;
  59         }
  60
  61         return closest;
  62 }
  63
  64 const VideoMode *Display::find_mode(unsigned width, unsigned height) const
  65 {
  66         return find_mode(VideoMode(width, height));
  67 }
  68
  69 void Display::tick()
  70 {
  71         check_error();
  72
  73         while(process_events()) ;
  74 }
  75
  76 } // namespace Graphics
  77 } // namespace Msp