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[Databinding] - Custom Widgets [message #560228] Tue, 21 September 2010 11:37
eshvar60 is currently offline eshvar60
Messages: 51
Registered: March 2010
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Ok Guys, I have been racking my head around this problem for 2 days now and I need your help.

I wrote a custom widget which consists of a couple of SWT Widgets(Spinner, Text and etc...). Anytime one of these is modified in value an attribute of type long in my widget class is updated.

Now I am using databinding to connect this value to my model. So I wrote a custom WidgetValueProperty with the correct doGetValue/doSetValue methods and my model updates just fine.

The problem I am having is that my bindings all have a change listener attached to them to set my editor's dirty state onchange. The UI elements that have an observable created via SWTObservables all fire a change event when modified. My custom widget does not.

So I am guessing I need to override the wrapObservable method of the WidgetValueProperty but I don't know what I am suppose to put in place of the SWTObservableValueDecorator.

Does anyone have ideas on how to properly implement this?

Thanks
Eugene

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