Bug 51991 [Progress] Half-busy cursor API on site progress service
Currently the Team components set the half-busy cursor in views that are running a job via the IWorkbenchSiteProgressService mechanism. But we can't show this cursor on the toolbar or view title pane. It would be better if the site progress service had API for setting the cursor on the partpane. This would allow showing the half-busy cursor for the entire part.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/TableContentProvider.java
/**
		 * Number of items modified in the last update
		 */
		int lastWorked = 0;
		
		/**
		 * Remembers whether the viewer existed the last time this job was run
		 */
		boolean controlExists = true;
		
		WidgetRefreshJob(String title) {
			super(title);
		}
		
		/**
		 * Will be executed each time the update thread wakes up. This makes
		 * a single incremental update to the viewer (ie: adds or removes a few items)