create dynamic map tab icon

include/core/maplayout.h

@@ -19,14 +19,12 @@ class Layout : public QObject {
 public:
     Layout() {}
 
+    void copyAttributesFrom(Layout *other);
+
     static QString layoutConstantFromName(QString mapName);
 
     bool loaded = false;
 
-    /// !TODO
-    /* NEW */
-    QList<Map *> maps;
-
     QString id;
     QString name;
 
@@ -126,6 +124,4 @@ signals:
     void needsRedrawing();
 };
 
-using MapLayout = Layout;
-
 #endif // MAPLAYOUT_H