add limits for resizing layouts

include/core/editcommands.h

@@ -204,11 +204,6 @@ private:
 /// Implements a command to commit a map or border resize action.
 class ResizeLayout : public QUndoCommand {
 public:
-    // ResizeLayout(Layout *layout, QSize oldLayoutDimensions, QSize newLayoutDimensions,
-    //     const Blockdata &oldMetatiles, const Blockdata &newMetatiles,
-    //     QSize oldBorderDimensions, QSize newBorderDimensions,
-    //     const Blockdata &oldBorder, const Blockdata &newBorder,
-    //     QUndoCommand *parent = nullptr);
     ResizeLayout(Layout *layout, QSize oldLayoutDimensions, QMargins newLayoutMargins,
         const Blockdata &oldMetatiles, const Blockdata &newMetatiles,
         QSize oldBorderDimensions, QSize newBorderDimensions,

include/ui/movablerect.h

@@ -55,6 +55,7 @@ public:
     }
 
     void updatePosFromRect(QRect newPos);
+    void setLimit(QRect limit) { this->limit = limit; }
 
 protected:
     void hoverMoveEvent(QGraphicsSceneHoverEvent *event) override;
@@ -71,6 +72,8 @@ private:
     QPointF clickedPos = QPointF();
     QRect clickedRect;
 
+    QRect limit = QRect();
+
     int lineWidth = 8;
 
 signals: