Images are now cached as wxBitmap, not wxImage. This should improve performance.

Fixed some more corner cases of rotation+zoom.

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@630 0fc631ac-6414-0410-93d0-97cfa31319b6

src/render/value/viewer.hpp

@@ -57,8 +57,8 @@ class ValueViewer : public StyleListener {
 	 */
 	virtual void onValueChange() {}
 	/// Called when a (scripted) property of the associated style has changed
-	/** If alread_prepared, should make sure the viewer stays in a state similair to that after prepare() */
-	virtual void onStyleChange(bool already_prepared) {}
+	/** Default: redraws the viewer if needed */
+	virtual void onStyleChange(int changes);
 	/// Called when an action is performed on the associated value
 	virtual void onAction(const Action&, bool undone) { onValueChange(); }