Conversion to new ScriptableImage complete, this affected quite a bit, including the evil thumbnail thread;

Added StyleListener, so style changes are only propagated to interested viewers.

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@329 0fc631ac-6414-0410-93d0-97cfa31319b6

src/gui/control/card_viewer.cpp

@@ -32,11 +32,13 @@ wxSize CardViewer::DoGetBestSize() const {
 }
 
 void CardViewer::redraw(const ValueViewer& v) {
+	if (drawing) return;
 	up_to_date = false;
 	RefreshRect(getRotation().tr(v.boundingBox()), false);
 }
 
 void CardViewer::onChange() {
+	if (drawing) return;
 	up_to_date = false;
 	Refresh(false);
 }