X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fgraphics%2Fdisplay.cpp;h=40112a35f9408760c5f6ab05ea286033403282b1;hb=2438c3cdd14087bfc3375ed1f5521ad5c0c09bbc;hp=42b0e8bb773404c892b01896d8ca13a589fa6f73;hpb=1aca77b93853ee127ac3bbf6886f7f04920542ef;p=libs%2Fgui.git

diff --git a/source/graphics/display.cpp b/source/graphics/display.cpp
index 42b0e8b..40112a3 100644
--- a/source/graphics/display.cpp
+++ b/source/graphics/display.cpp
@@ -1,4 +1,4 @@
-#include <msp/strings/format.h>
+#include <cmath>
 #include "display.h"
 #include "display_private.h"
 #include "window.h"
@@ -8,11 +8,6 @@ using namespace std;
 namespace Msp {
 namespace Graphics {
 
-unsupported_video_mode::unsupported_video_mode(const VideoMode &mode):
-	runtime_error(format("%dx%d", mode.width, mode.height))
-{ }
-
-
 void Display::add_window(Window &wnd)
 {
 	priv->windows[wnd.get_private().window] = &wnd;
@@ -23,6 +18,54 @@ void Display::remove_window(Window &wnd)
 	priv->windows.erase(wnd.get_private().window);
 }
 
+const VideoMode &Display::get_desktop_mode() const
+{
+	if(!primary_monitor || !primary_monitor->desktop_mode)
+		throw logic_error("no desktop mode");
+	return *primary_monitor->desktop_mode;
+}
+
+void Display::restore_mode()
+{
+	for(list<Monitor>::const_iterator i=monitors.begin(); i!=monitors.end(); ++i)
+		if(i->desktop_mode)
+			set_mode(*i->desktop_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::tick()
 {
 	check_error();