Symbol resizing using aspect ratio;

TODO: copy code for rarity box to other styles

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@622 0fc631ac-6414-0410-93d0-97cfa31319b6

src/render/value/choice.hpp

@@ -20,6 +20,7 @@ class ChoiceValueViewer : public ValueViewer {
   public:
 	DECLARE_VALUE_VIEWER(Choice) : ValueViewer(parent,style) {}
 	
+	virtual bool prepare(RotatedDC& dc);
 	virtual void draw(RotatedDC& dc);
 	virtual void onStyleChange(bool);
 };