bugfix(gui): fix resolution and zoom scaling of unit information

Author: Mauller

GeneralsMD/Code/GameEngine/Include/GameClient/Display.h

@@ -96,6 +96,12 @@ class Display : public SubsystemInterface
 	virtual void dumpAssetUsage(const char* mapname) = 0;
 #endif
 
+	//---------------------------------------------------------------------------------------
+	// Display scaling methods
+	virtual Real getWidthScale( void );
+	virtual Real getHeightScale( void );
+	virtual Real getAspectRatioScale( void );
+
 	//---------------------------------------------------------------------------------------
 	// View management
 	virtual void attachView( View *view );												///< Attach the given view to the world

GeneralsMD/Code/GameEngine/Include/GameClient/View.h

@@ -43,6 +43,9 @@
 #define DEFAULT_VIEW_ORIGIN_X 0
 #define DEFAULT_VIEW_ORIGIN_Y 0
 
+#define DEFAULT_VIEW_MAX_ZOOM 1.3f
+#define DEFAULT_VIEW_MIN_ZOOM 0.2f
+
 // FORWARD DECLARATIONS ///////////////////////////////////////////////////////////////////////////
 class Drawable;
 class ViewLocation;

GeneralsMD/Code/GameEngine/Source/GameClient/Display.cpp

@@ -202,6 +202,32 @@ void Display::setHeight( UnsignedInt height )
 
 }
 
+// Display::getWidthScale =========================================================
+/** Return the ratio of the current display width relative to the default resolution */
+//=============================================================================
+Real Display::getWidthScale(void)
+{
+	return INT_TO_REAL(m_width) / DEFAULT_DISPLAY_WIDTH;
+}
+
+// Display::getHeightScale =========================================================
+/** Return the ratio of the current display height relative to the default resolution */
+//=============================================================================
+Real Display::getHeightScale(void)
+{
+	return INT_TO_REAL(m_height) / DEFAULT_DISPLAY_HEIGHT;
+}
+
+// Display::getAspectRatioScale =========================================================
+/** Return the ratio of the current display aspect ratio relative to the default aspect ratio */
+//=============================================================================
+Real Display::getAspectRatioScale(void)
+{
+	Real baseAspectRatio = INT_TO_REAL(DEFAULT_DISPLAY_WIDTH) / DEFAULT_DISPLAY_HEIGHT;
+	Real currentAspectRatio = INT_TO_REAL(m_width) / m_height;
+	return currentAspectRatio / baseAspectRatio;
+}
+
 //============================================================================
 // Display::playLogoMovie
 // minMovieLength is in milliseconds