JFace：在TreeViewer中更改TreeItem的颜色

Question

I tried to change the BackgroundColor of specific TreeNodes during runtime inside my Class which contains my TreeViewer, but it doesn't work:

....
    Display display = Display.getCurrent();
            for (TreeItem item : treeItems) {
                if (item.getParentItem() != null) {
                    Object parentElement = item.getParentItem().getData();
                    if(parentElement instanceof Or){
                        System.out.println(item);
                        Color color = new Color(display,12, 197, 77);
                        item.setBackground(color);
                        item.setForeground(color);
                    }
                }
            }
  ......

I'm wondering why this doesn't work, as TreeItem has the according methods for this.

Note that I don't want to use my Labelprovider for this, as I've to check several dependencies between nodes to determine the right Color and therefor, the Labelprovider don't fit in.

Cheers, Phil

Answer 1

Check this example here . For more examples on JFace see here .