X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fgraphics%2Fdisplay.cpp;h=8c3813d16cd8d19321fddcd6609a9dfc5748da3c;hb=6222d13e2790bdaa1013444f1221841397834cdd;hp=deaa5b560e7819db973b1f6a9fc2d94068bdf65e;hpb=e09c2211539f417474b1d3226f56f021938329bf;p=libs%2Fgui.git

diff --git a/source/graphics/display.cpp b/source/graphics/display.cpp
index deaa5b5..8c3813d 100644
--- a/source/graphics/display.cpp
+++ b/source/graphics/display.cpp
@@ -1,4 +1,6 @@
 #include "display.h"
+#include <cmath>
+#include <sigc++/bind.h>
 #include "display_private.h"
 #include "window.h"
 
@@ -10,18 +12,94 @@ namespace Graphics {
 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 = nullptr;
+}
+
+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(const Monitor &m: monitors)
+		if(m.desktop_settings.mode)
+			set_mode(*m.desktop_settings.mode, false);
+}
+
+const VideoMode *Display::find_mode(const VideoMode &mode, float rate_tolerance) const
+{
+	const VideoMode *closest = nullptr;
+	float rate_diff = 0.0f;
+
+	float target_rate = mode.rate;
+	if(!target_rate && mode.monitor)
+		if(const VideoMode *current_mode = mode.monitor->current_settings.mode)
+			target_rate = current_mode->rate;
+
+	for(const VideoMode &m: modes)
+	{
+		if(mode.monitor && m.monitor!=mode.monitor)
+			continue;
+		// Only check rate tolerance against an explicitly requested rate
+		if(mode.rate && (m.rate<mode.rate-rate_tolerance || m.rate>mode.rate+rate_tolerance))
+			continue;
+		if(m.width!=mode.width || m.height!=mode.height)
+			continue;
+
+		float ref_rate = target_rate;
+		if(!ref_rate)
+			if(const VideoMode *current_mode = m.monitor->current_settings.mode)
+				ref_rate = current_mode->rate;
+
+		float d = abs(m.rate-ref_rate);
+		if(!closest || d<rate_diff)
+		{
+			closest = &m;
+			rate_diff = d;
+		}
+	}
+
+	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 = nullptr;
 }
 
 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