Bug 24521 [Viewers] TreeViewer.update() does not work correctly with filter
When I add an element which does not satisfy the filtering condition and then update it so that it does, call to update does not show the element. This is because[StructuredViewer.update]: public void update(Object element, String[] properties) { Assert.isNotNull(element); | Widget item = findItem(element); | if (item == null) | return; the code silently ignores that the element may become visible... btw. later in code of this method: if (needsRefilter) { refresh(); return; } This is quite inefficient, as it needs to query all visible items; however only one element may actually change (change visibility and/or sort order).
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/StructuredViewer.java
}
		/**
		 * Set the foreground color.
		 * @param foreground
		 */
		public void setForeground(Color foreground) {
			this.foreground = foreground;
		}
	
		
	}
	/**
	 * The safe runnable used to update an item.
	 */
	class UpdateItemSafeRunnable extends SafeRunnable {
		private Widget widget;
		private Object element;
		private boolean fullMap;
		UpdateItemSafeRunnable(Widget widget, Object element, boolean fullMap) {
			this.widget = widget;
			this.element = element;
			this.fullMap = fullMap;
		}
		public void run() {
			doUpdateItem(widget, element, fullMap);
		}
	}
	
	/**
	 * Creates a structured element viewer. The viewer has no input, no content