Refactor frame and markup code to use paths.

- CD frames are currently broken.

libglabels/Frame.h

@@ -25,7 +25,6 @@
 #include <QString>
 #include <QList>
 #include <QPainterPath>
-#include <QGraphicsItem>
 #include <QVector>
 
 #include "Units.h"
@@ -66,9 +65,8 @@ namespace libglabels
 		virtual const QString sizeDescription( const Units* units ) const = 0;
 		virtual bool isSimilarTo( Frame* other ) const = 0;
 
-		virtual const QPainterPath &path( bool isRotated = false ) const = 0;
-		virtual QGraphicsItem* createMarginGraphicsItem( double size,
-		                                                 const QPen& pen ) const = 0;
+		virtual const QPainterPath& path() const = 0;
+		virtual QPainterPath marginPath( double size ) const = 0;
 
 
 	private: