Layout() always called when editor/viewer control changes size

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@145 0fc631ac-6414-0410-93d0-97cfa31319b6

src/render/card/viewer.cpp

@@ -58,6 +58,7 @@ ValueViewer* DataViewer::focusedViewer() const { return nullptr; }
 Context& DataViewer::getContext()  const { return set->getContext(); }
 
 Rotation DataViewer::getRotation() const {
+	if (!stylesheet) stylesheet = set->stylesheet;
 	StyleSheetSettings& ss = settings.stylesheetSettingsFor(*stylesheet);
 	return Rotation(ss.card_angle(), stylesheet->getCardRect(), ss.card_zoom(), true);
 }
@@ -71,6 +72,7 @@ void DataViewer::setCard(const CardP& card) {
 	stylesheet = set->stylesheetFor(card);
 	setStyles(stylesheet, stylesheet->card_style);
 	setData(card->data);
+	onChangeSize();
 }
 
 // ----------------------------------------------------------------------------- : Viewers

src/render/card/viewer.hpp

@@ -73,14 +73,15 @@ class DataViewer : public SetView {
 	
 	/// Notification that the total image has changed
 	virtual void onChange() {}
-	
 	/// Notification that the viewers are initialized
 	virtual void onInit() {}
+	/// Notification that the size of the viewer may have changed
+	virtual void onChangeSize() {}
 	
 	vector<ValueViewerP> viewers;	///< The viewers for the different values in the data
 	CardP card;						///< The card that is currently displayed, if any
   public:
-	StyleSheetP stylesheet;			///< Stylesheet being used
+	mutable StyleSheetP stylesheet;	///< Stylesheet being used
 };
 
 // ----------------------------------------------------------------------------- : EOF