Bug 151205 [Viewers] Add setFilters() to change multiple filters at once efficiently
When one needs to add more than one filter after every request a refresh command is issued which is not desired an API-Function where the user could control whether the refresh is called or not would be a great performance improvement.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/StructuredViewer.java
public ColorAndFontCollectorWithProviders(IBaseLabelProvider provider) {
			super();
			if (provider instanceof IColorProvider) {
				colorProvider = (IColorProvider) provider;
			}
			if (provider instanceof IFontProvider) {
				fontProvider = (IFontProvider) provider;
			}
		}
		
	
		/* (non-Javadoc)
		 * @see org.eclipse.jface.viewers.StructuredViewer.ColorAndFontManager#setFontsAndColors(java.lang.Object)
		 */
		public void setFontsAndColors(Object element){
			
			if(fontProvider != null){
				if(font == null) {
					font = fontProvider.getFont(element);
				}	
			}
			
			if(colorProvider == null) {
				return;
			}			
			
			if(background == null) {
				background = colorProvider.getBackground(element);
			}