Bug 568512

Description Page 2020-11-03 15:48:20 EST

Created attachment 284654 [details]
image1.png: shows the paint issue

I have a css defined for Tree :

Tree {
    color: #1e1e1e;
    background-color: #ffffff;
    swt-selection-background-color: #cde6eb;
    swt-selection-border-color:  #cde6eb;
    swt-selection-color: #1e1e1e;
    swt-hot-background-color: #daecf0;
    swt-hot-border-color: #daecf0;   
}

When the tree has a horizontal scrollbar, the selection background is only painted half way up-to where the scrollbar is (see attachment image1).

If I enlarge the view to display the complete tree node, the problem goes away.

If I remove "swt-selection-background-color" and "swt-selection-border-color" from css, the problem goes away. (see attachment image2)

The tree is create as following:

	public E4CustomOverview( Composite parent )
	{
		viewer = new TreeViewer( parent );
		viewer.setContentProvider( new TreeContentProvider() );
		viewer.getTree().setHeaderVisible( true );
		viewer.getTree().setLinesVisible( true );

		TreeViewerColumn viewerColumn = new TreeViewerColumn( viewer, SWT.NONE );
		viewerColumn.getColumn().setWidth( 300 );
		viewerColumn.getColumn().setText( "Objects" );
		viewerColumn.setLabelProvider( new MyLabelProvider() );
		GridLayoutFactory.fillDefaults().generateLayout( parent );

		viewer.setInput(new String[] { "Welcome to this funny node that doesn't paint correctly" });

	}

I have also attached the eclipse project which duplicates the issue.