Added aspect ratio info to the list of resolutions

apps/launcher/graphicspage.cpp

@@ -1,11 +1,25 @@
 #include <QtGui>
 
+#include <boost/math/common_factor.hpp>
+
 #include <components/files/configurationmanager.hpp>
 #include <components/settings/settings.hpp>
 
 #include "graphicspage.hpp"
 #include "naturalsort.hpp"
 
+QString getAspect(int x, int y)
+{
+    int gcd = boost::math::gcd (x, y);
+    int xaspect = x / gcd;
+    int yaspect = y / gcd;
+    // special case: 8 : 5 is usually referred to as 16:10
+    if (xaspect == 8 && yaspect == 5)
+        return QString("16:10");
+
+    return QString(QString::number(xaspect) + ":" + QString::number(yaspect));
+}
+
 GraphicsPage::GraphicsPage(Files::ConfigurationManager &cfg, QWidget *parent)
     : QWidget(parent)
     , mCfgMgr(cfg)
@@ -243,12 +257,21 @@ QStringList GraphicsPage::getAvailableResolutions(Ogre::RenderSystem *renderer)
             QStringList tokens = qval.split(" ", QString::SkipEmptyParts);
             assert (tokens.size() >= 3);
             QString resolutionStr = tokens.at(0) + QString(" x ") + tokens.at(2);
-            {
 
-                // do not add duplicate resolutions
-                if (!result.contains(resolutionStr))
-                    result << resolutionStr;
-            }
+            // do not add duplicate resolutions
+            if (!result.contains(resolutionStr)) {
+                // Add the aspect ratio
+                QString aspect = getAspect(tokens.at(0).toInt(),tokens.at(2).toInt());
+
+                if (aspect == QLatin1String("16:9") || aspect == QLatin1String("16:10")) {
+                    resolutionStr.append(tr("\t(Widescreen ") + aspect + ")");
+
+                } else if (aspect == QLatin1String("4:3")) {
+                    resolutionStr.append(tr("\t(Standard 4:3)"));
+                }
+
+                result << resolutionStr;
+              }
         }
 
     }