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figure label text enum values [message #52591]

Thu, 21 September 2006 03:07

Eclipse User

Hi,

I have a emf element those name attribute may have only a value of a
predefined set of values (choice of enum). So its useful for users to
present a dropdown instead of a text field as value editor in the
diagram. How do I create such a DirectEditManager and where do I need to
instantiate and assign this? Does such a DropDownDirectEditManager
already exists? If no, what do I need to consider ?

Thanks,
Sven

Re: figure label text enum values [message #52681 is a reply to message #52591]

Thu, 21 September 2006 05:11

Eclipse User

Originally posted by: 5d5.mail.ru

I've submitted https://bugs.eclipse.org/bugs/show_bug.cgi?id=158116

sven krause wrote:
> Hi,
>
> I have a emf element those name attribute may have only a value of a
> predefined set of values (choice of enum). So its useful for users to
> present a dropdown instead of a text field as value editor in the
> diagram. How do I create such a DirectEditManager and where do I need to
> instantiate and assign this? Does such a DropDownDirectEditManager
> already exists? If no, what do I need to consider ?
>
> Thanks,
> Sven

Re: figure label text enum values [message #52734 is a reply to message #52681]

Thu, 21 September 2006 05:43

Eclipse User

Hi Dmitry,

it's not for EEnum datatypes only. Sometime I need to limit the values
of the editor context driven. So I need to apply an "handmade" editor.

I just found a solution:
change in the XXXEditPart:
/**
* @generated NOT
*/
protected DirectEditManager getManager() {
if( manager == null ) {
View view = (View) getModel();
EObject modelElement = (EObject) view.getElement();
if(your decision) {
setManager(new DropDownDirectEditManager(this));
} else {
... old code ...
}
}
return manager;
}

and then create a class DropDownDirectEditManager extends
DirectEditManager adapting the methods from TextDirectEditManager:

1. adapting the constructor
1.2. adapting getCellEditorClass
1.3 adpating getCellEditorLocator and the used private class

2. overrride createCellEditorOn( Composite composite ) to use a
ComboBoxCellEditor and make sure that your CellEditor.getValue() returns
a String (just overriding doGetValue at ComboBoxCellEditor)

3. overrriding initCellEditor to initialize the drop down values

Sven

Dmitry Stadnik schrieb:
> I've submitted https://bugs.eclipse.org/bugs/show_bug.cgi?id=158116
>
> sven krause wrote:
>> Hi,
>>
>> I have a emf element those name attribute may have only a value of a
>> predefined set of values (choice of enum). So its useful for users to
>> present a dropdown instead of a text field as value editor in the
>> diagram. How do I create such a DirectEditManager and where do I need
>> to instantiate and assign this? Does such a DropDownDirectEditManager
>> already exists? If no, what do I need to consider ?
>>
>> Thanks,
>> Sven

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