Refresh of TreeViewer is slow

[ptziegler]

The refresh event for the components tree viewer always performs a refresh of the entire component structure, even if only a sub-component was modified. We should pass the affected model as additional parameter to the refreshed method so that we can call refresh() on that, rather than the root.

windowbuilder/org.eclipse.wb.core/src/org/eclipse/wb/core/gefTree/part/ObjectEditPart.java

Lines 90 to 104 in 56b01bd

	@Override
	public void refreshed() throws Exception {
	// do in setRedraw(false) to avoid flashing after component moving
	tree.setRedraw(false);
	try {
	refresh();
	{
	setSelectionIfAllEditParts(m_delayedSelectionObjects);
	m_delayedSelectionObjects = null;
	}
	viewer.setSelectionToTreeWidget();
	} finally {
	tree.setRedraw(true);
	}
	}