| How do I "overload" an already existing EditHelper? [message #114613] |
Tue, 27 March 2007 08:06  |
Eclipse User |
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Hello,
I have a custom project for my generated GMF-editor. As my custom-plugin
expands functionality I want to add new commands that are retrieved by
the EditHelper.
How do I override the already generated EditHelper. I played around with
the type extension points, but did not recieve the desired result so
far. I've set a break point in my new EditHelper but it is not called.
Greetings,
Alexander
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| Re: How do I "overload" an already existing EditHelper? [message #114663 is a reply to message #114613] |
Tue, 27 March 2007 08:35  |
| Eclipse User |
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Alexander,
You can augment the command returned by an EditHelper by binding an
IEditHelperAdvice to its element type using an adviceBinding element in
the elementTypes extension point. This will result in a composite
command that contains both the command from the EditHelper in your
generated editor plugin _and_ the command from your IEditHelperAdvice.
If you wish to completely _replace_ the command from the EditHelper, you
can set the REPLACE_DEFAULT_COMMAND parameter from your
IEditHelperAdvice, like this:
request.setParameter(IEditCommandRequest.REPLACE_DEFAULT_COM MAND,
Boolean.TRUE);
There is an example of this in the
HalfAdderAdvice#getBeforeConfigureCommand in the runtime logic example.
In this example the advice is contributed by a specializationType
element in the elementTypes extension point because the half adder is a
type in its own right, but the same idea applies when you're using the
adviceBinding element.
Hope that helps,
Linda
Alexander Dotor wrote:
> Hello,
>
> I have a custom project for my generated GMF-editor. As my custom-plugin
> expands functionality I want to add new commands that are retrieved by
> the EditHelper.
>
> How do I override the already generated EditHelper. I played around with
> the type extension points, but did not recieve the desired result so
> far. I've set a break point in my new EditHelper but it is not called.
>
> Greetings,
> Alexander
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