Bug 5264 Class detail filtering options in packages view.
Build 20011018. The new build allows the user to expand classes in the packages view and look at their contents. (methods and fields) It would be nice to be able to filter out this view so it didn't show you the field if you didn't want it to. (e.g. have the same options as you do in the Outline view for a Java file)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerPart.java
return getToolTipText(fViewer.getInput());
	}
	
	/**
	 * @see IWorkbenchPart#setFocus()
	 */
	public void setFocus() {
		fViewer.getTree().setFocus();
	}
	/**
	 * Sets the working set to be used for filtering this part
	 */
	public void setWorkingSet(IWorkingSet ws) {
		fWorkingSetFilter.setWorkingSet(ws);
		firePropertyChange(IWorkbenchPart.PROP_TITLE);
		fFilterWorkingSetAction.setChecked(ws != null);
		fRemoveWorkingSetAction.setEnabled(ws != null);
	} 
	
	/**
	 * Returns the shell to use for opening dialogs.
	 * Used in this class, and in the actions.
	 */
	private Shell getShell() {
		return fViewer.getTree().getShell();
	}
	/**
	 * Returns the selection provider.
	 */
	private ISelectionProvider getSelectionProvider() {