+#include <cmath>
+#include <sigc++/bind.h>
#include "display.h"
#include "display_private.h"
#include "window.h"
void Display::add_window(Window &wnd)
{
priv->windows[wnd.get_private().window] = &wnd;
+ wnd.signal_got_focus.connect(sigc::bind(sigc::mem_fun(this, &Display::window_got_focus), sigc::ref(wnd)));
+ wnd.signal_lost_focus.connect(sigc::mem_fun(this, &Display::window_lost_focus));
}
void Display::remove_window(Window &wnd)
{
priv->windows.erase(wnd.get_private().window);
+ if(&wnd==focus_window)
+ focus_window = 0;
+}
+
+const VideoMode &Display::get_desktop_mode() const
+{
+ if(!primary_monitor || !primary_monitor->desktop_settings.mode)
+ throw logic_error("no desktop mode");
+ return *primary_monitor->desktop_settings.mode;
+}
+
+void Display::restore_mode()
+{
+ for(list<Monitor>::const_iterator i=monitors.begin(); i!=monitors.end(); ++i)
+ if(i->desktop_settings.mode)
+ set_mode(*i->desktop_settings.mode, false);
+}
+
+const VideoMode *Display::find_mode(const VideoMode &mode, float rate_tolerance) const
+{
+ const VideoMode *closest = 0;
+ float rate_diff = mode.rate;
+ for(list<VideoMode>::const_iterator i=modes.begin(); i!=modes.end(); ++i)
+ {
+ if(mode.monitor && i->monitor!=mode.monitor)
+ continue;
+ if(mode.rate && (i->rate<mode.rate-rate_tolerance || i->rate>mode.rate+rate_tolerance))
+ continue;
+ if(i->width!=mode.width || i->height!=mode.height)
+ continue;
+
+ if(mode.rate)
+ {
+ float d = abs(i->rate-mode.rate);
+ if(d<rate_diff)
+ {
+ closest = &*i;
+ rate_diff = d;
+ }
+ }
+ else
+ return &*i;
+ }
+
+ return closest;
+}
+
+const VideoMode *Display::find_mode(unsigned width, unsigned height) const
+{
+ return find_mode(VideoMode(width, height));
+}
+
+void Display::window_got_focus(Window &w)
+{
+ focus_window = &w;
+}
+
+void Display::window_lost_focus()
+{
+ focus_window = 0;
}
void Display::tick()
{
check_error();
+ Window *old_focus = focus_window;
+
while(process_events()) ;
+
+ if(old_focus && !focus_window)
+ signal_lost_focus.emit();
+ else if(!old_focus && focus_window)
+ signal_got_focus.emit();
}
} // namespace Graphics