How to compose images in Eclipse Kepler?

Question

This is a followup to Items decorations in a TreeViewer: I have a TreeView with my own Objects. I already have a LabelProvider that supplies Icons and Texts. Now I want to decorate the images with other images depending on some conditions. How can I do this? The referenced question uses ComposedImage, which I suppose is org.eclipse.emf.edit.provider.

Is there a way to do this with SWT/JFace in Eclipse 4.3?

I already tried using a ILightweightLabelDecorator (using the idea from the FAQ), but gave up wrapping that round my LabelProvider.

score 1 · Accepted Answer · edited May 23 '17 at 12:20

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ILightweightLabelDecorator is really the best way to do this. Wrap your label provider with a DecoratingLabelProvider as described in this answer: Using a ILightweightLabelDecorator decorator Use the org.eclipse.ui.decorators extension point to declare your lightweight decorator.

edited May 23 '17 at 12:20

Community

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answered Sep 16 '13 at 13:18

greg-449

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So although `PlatformUI.getWorkbench().getDecoratorManager().getLabelDecorator())` returns an `ILabelDecorator` I can use an `ILightweightLabelDecorator` in the extension point? – Martin Schröder Sep 16 '13 at 13:39
Yes the decorator manager returns a label decorator which manages the lightweight decorators (you can have several if you wish). – greg-449 Sep 16 '13 at 13:40

score 1 · Answer 2 · answered Sep 16 '13 at 21:10

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you may want to look at org.eclipse.jface.viewers.DecorationOverlayIcon which is basically used by decoration providers.

answered Sep 16 '13 at 21:10

sambi reddy

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How to compose images in Eclipse Kepler?

2 Answers2