Providing Double-Click Behavior

 

Enhancing the Tool Behavior Provider

 

The double-click behaviour is defined in the tool behavior provider.

If you didn’t do so already you must first create a tool behavior provider and add it to the diagram type provider as described here.

There is one method of the tool behavior provider to overwrite:

The method getDoubleClickFeature has to return the custom feature to execute on double-click for the given context.

  

In this example we want to execute the ”Rename EClass” feature we implemented previously on double-click.  

 

You can see the complete implementation of the double-click behavior here:

 

 

    @Override

    public ICustomFeature getDoubleClickFeature(IDoubleClickContext context) {

        ICustomFeature customFeature =

            new TutorialRenameEClassFeature(getFeatureProvider());

        // canExecute() tests especially if the context contains a EClass

        if (customFeature.canExecute(context)) {

            return customFeature;

        }

 

        return super.getDoubleClickFeature(context);

    }

 

 

Test: Rename a EClass on Double-Click

 

Now start the editor and create a new EClass. Double-click that EClass and the rename dialog appears, which allows changing the class name.

 


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