fixes a bug when resizing the window before a window listener is set

libs/openengine/ogre/renderer.cpp

@@ -157,6 +157,21 @@ void OgreRenderer::setFov(float fov)
 
 void OgreRenderer::windowResized(int x, int y)
 {
-    if (mWindowListener)
+    if (mWindowListener) {
         mWindowListener->windowResized(x,y);
+    }
+    else {
+        mWindowWidth = x;
+        mWindowHeight = y;
+        mOutstandingResize = true;
+    }
+}
+
+void OgreRenderer::setWindowListener(WindowSizeListener* listener)
+{
+    mWindowListener = listener;
+    if (mOutstandingResize) {
+        windowResized(mWindowWidth, mWindowHeight);
+        mOutstandingResize = false;
+    }
 }

libs/openengine/ogre/renderer.hpp

@@ -66,6 +66,10 @@ namespace OEngine
 
             WindowSizeListener* mWindowListener;
 
+            int mWindowWidth;
+            int mWindowHeight;
+            bool mOutstandingResize;
+
         public:
             OgreRenderer()
             : mRoot(NULL)
@@ -77,6 +81,9 @@ namespace OEngine
             , mOgreInit(NULL)
             , mFader(NULL)
             , mWindowListener(NULL)
+            , mWindowWidth(0)
+            , mWindowHeight(0)
+            , mOutstandingResize(false)
             {
             }
 
@@ -133,7 +140,7 @@ namespace OEngine
             /// Viewport
             Ogre::Viewport *getViewport() { return mView; }
 
-            void setWindowListener(WindowSizeListener* listener) { mWindowListener = listener; }
+            void setWindowListener(WindowSizeListener* listener);
 
             void adjustViewport();
         };