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1.4 Capabilities of the editor
This chapter presents the fundamental operations that can be executed with this editor.
1.4.1 Moving and resizing
The editor provides functionality for moving and resizing graphical objects. For instance, the constraint can be resized and moved. If you select a graphical object you will see black rectangle around this object with eight anchor points which provide the functionality for resizing a graphical object.1.4.2 Undo / redo
In general all editor operations such as moving, creating and deleting can be undone and redone. An disadvantage of the current editor implementation is that edit operations for ClassifierRoles can not be undone. For undoing an edit operation you have to edit the ClassifierRole once again.1.4.3 Context menu
The context menu represent an easy way to manipulate VOCL diagrams. Its look, i.e the number and the kind of entries, depends on the selected object.For instance, operations like undo / redo appear if any operation was executed. The delete operation always appear at the time when the selected object provides a deletion operation. Other operations like edit of VOCL object or negate / unnegate depends also on the selected object. In Fig. 1.4.1 you can see the context menu of a ClassifierRole was created and then selected. There you have undo, delete and editing operations for instance but no negate / unnegate operation which is not provided by this graphical object.
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Fig 1.4.1 - context menu of a ClassifierRole