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LabelProvider with image disables expansion of checkbox tree nodes [message #681758]

Thu, 09 June 2011 20:00

Bo Ens

Messages: 10
Registered: January 2010

Junior Member

We are using a CheckboxTreeViewer that was working fine until we added images to the LabelProvider.

If LabelProvider.getImage returns null for all nodes, there are no problems. When images are returned, the images display fine, but the arrows for expanding the nodes are now disabled. See attached snapshots for examples.

The TreeContentProvider.getChildren method was returning true, but the TreeContentProvider.getChildren method was not being called for anything but the root node.

Has anybody seen this, and if so, any workarounds?

Thanks.

Attachment: noImages.png
(Size: 1.65KB, Downloaded 204 times)
Attachment: withImages.png
(Size: 2.17KB, Downloaded 286 times)

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Re: LabelProvider with image disables expansion of checkbox tree nodes [message #681769 is a reply to message #681758]

Thu, 09 June 2011 20:24

Bo Ens

Messages: 10
Registered: January 2010

Junior Member

The expansion arrows don't work, but just noticed that the nodes can be expanded using the keyboard.

After trying different size images, using 12x12 works. Anything smaller than that cause the expansion arrows to be smaller and not respond to mouse events.

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