* Added the m_rotate_action to qetelementeditor.ui * Adding QAction to qetelementeditor.cpp and connecting it to new slot RotateElementsCommand defined in editorcommands.cpp

* Some types of elements need to specialize the setRotation method in order to behave correctly :
- PartTerminal needs to call setOrientation
- PartLine, PartRectangle and PartPolygon need a different rotation center.

sources/editor/editorcommands.h

@@ -22,6 +22,19 @@
 #include "elementcontent.h"
 #include "elementscene.h"
 #include "elementview.h"
+#include "graphicspart/abstractpartellipse.h"
+#include "graphicspart/customelementgraphicpart.h"
+#include "graphicspart/customelementpart.h"
+#include "graphicspart/partarc.h"
+#include "graphicspart/partdynamictextfield.h"
+#include "graphicspart/partellipse.h"
+#include "graphicspart/partline.h"
+#include "graphicspart/partpolygon.h"
+#include "graphicspart/partrectangle.h"
+#include "graphicspart/partterminal.h"
+#include "graphicspart/parttext.h"
+#include "../QPropertyUndoCommand/qpropertyundocommand.h"
+
 
 /**
 	@brief The ElementEditionCommand class
@@ -279,4 +292,24 @@ class changeElementDataCommand : public ElementEditionCommand
 					m_new;
 };
 
+/**
+    @brief The RotateSelectionInESCommand class
+    Rotate the selected items in the element editor
+*/
+
+class RotateElementsCommand : public ElementEditionCommand
+{
+
+public:
+    RotateElementsCommand(ElementScene *scene, QUndoCommand *parent=nullptr);
+    void undo() override;
+    void redo() override;
+
+private:
+    ElementScene *m_scene =nullptr;
+    QList<QGraphicsItem*> m_items;
+
+};
+
+
 #endif