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LabelProvider with IColorProvider is not working? [message #464743]

Wed, 14 March 2007 16:07

Eclipse User

Hi

I want to use a IColorProvider for my ListLabelProvider but the method
getForeground(Object element) is never called?

viewer.setLabelProvider(new ListLabelProvider());

private class ListLabelProvider extends LabelProvider implements
IColorProvider{
...

public Color getBackground(Object element) {
return null;
}

public Color getForeground(Object element) {
Tia t = (Tia)element;
System.out.println("bla");
if(t.isFinished())
return Display.getCurrent().getSystemColor(SWT.COLOR_GREEN);
return null;
}
}// end (local) class ListLabelProvider

I am not getting any output (bla) and the debugger also doesn't stop there.

Re: LabelProvider with IColorProvider is not working? [message #464750 is a reply to message #464743]

Thu, 15 March 2007 02:33

Eclipse User

Hi,

to which viewer is this LableProvider passed to? To a ListViewer? This
is not possible IColorProvider and IFontProvider are only useable for
TableViewer and TreeViewer who have a concept of SWT-Item. As a
workaround you can use a TableViewer with *no* column and it will look
like the same than a ListViewer.

Tom

Marc Schlegel schrieb:
> Hi
>
> I want to use a IColorProvider for my ListLabelProvider but the method
> getForeground(Object element) is never called?
>
>
> viewer.setLabelProvider(new ListLabelProvider());
>
> private class ListLabelProvider extends LabelProvider implements
> IColorProvider{
> ...
>
> public Color getBackground(Object element) {
> return null;
> }
>
> public Color getForeground(Object element) {
> Tia t = (Tia)element;
> System.out.println("bla");
> if(t.isFinished())
> return Display.getCurrent().getSystemColor(SWT.COLOR_GREEN);
> return null;
> }
> }// end (local) class ListLabelProvider
>
> I am not getting any output (bla) and the debugger also doesn't stop there.

--
B e s t S o l u t i o n . a t EDV Systemhaus GmbH
----------------------------------------------------
tom schindl Eclipse JFace Committer

Re: LabelProvider with IColorProvider is not working? [message #464799 is a reply to message #464750]

Thu, 15 March 2007 09:45

Eclipse User

Thanks a lot.

It works just fine. All I had to do was to change the ListViewer to a
TableViewer and nothing else :-)

-- Marc

Tom Schindl schrieb:
> Hi,
>
> to which viewer is this LableProvider passed to? To a ListViewer? This
> is not possible IColorProvider and IFontProvider are only useable for
> TableViewer and TreeViewer who have a concept of SWT-Item. As a
> workaround you can use a TableViewer with *no* column and it will look
> like the same than a ListViewer.
>
> Tom
>
> Marc Schlegel schrieb:
>> Hi
>>
>> I want to use a IColorProvider for my ListLabelProvider but the method
>> getForeground(Object element) is never called?
>>
>>
>> viewer.setLabelProvider(new ListLabelProvider());
>>
>> private class ListLabelProvider extends LabelProvider implements
>> IColorProvider{
>> ...
>>
>> public Color getBackground(Object element) {
>> return null;
>> }
>>
>> public Color getForeground(Object element) {
>> Tia t = (Tia)element;
>> System.out.println("bla");
>> if(t.isFinished())
>> return Display.getCurrent().getSystemColor(SWT.COLOR_GREEN);
>> return null;
>> }
>> }// end (local) class ListLabelProvider
>>
>> I am not getting any output (bla) and the debugger also doesn't stop there.
>
>

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