Bug 7591 Flicker when toggeling show inherited filter
When toggeling the show inherited filter in the type hierarchy you can watch the scrollbar grow. We should bracket this refresh with setRedraw(false/true) so that there is only a single refresh.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/MethodsViewer.java
ScrollBar bar= getTable().getVerticalBar();
		if (bar != null) {
			Integer vScroll= memento.getInteger(TAG_VERTICAL_SCROLL);
			if (vScroll != null) {
				bar.setSelection(vScroll.intValue());
			}
		}
	}
	
	/**
	 * Attaches a contextmenu listener to the table
	 */
	public void initContextMenu(IMenuListener menuListener, String popupId, IWorkbenchPartSite viewSite) {
		MenuManager menuMgr= new MenuManager();
		menuMgr.setRemoveAllWhenShown(true);
		menuMgr.addMenuListener(menuListener);
		Menu menu= menuMgr.createContextMenu(getTable());
		getTable().setMenu(menu);
		viewSite.registerContextMenu(popupId, menuMgr, this);
	}	
		
	
	/**
	 * Fills up the context menu with items for the method viewer
	 * Should be called by the creator of the context menu
	 */	
	public void contributeToContextMenu(IMenuManager menu) {
		if (fOpen.canActionBeAdded()) {
			menu.appendToGroup(IContextMenuConstants.GROUP_OPEN, fOpen);
		}