Bug 97810 [preferences] Code template preference page buttons are not grayed out if invoked as project specific property page
3.1 RC1 Steps to reproduce: - Invoke Override Method on a project with no project-specific settings - Follow link to code template preference page -> Edit, Import, ... buttons are disabled, but not grayed out -> Toggling 'Enable project specific settings twice correctly grays out the buttons
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/dialogfields/TreeListDialogField.java
return 3;
	}
	/**
	* Sets the minimal width of the buttons. Must be called after widget creation.
	*/
	public void setButtonsMinWidth(int minWidth) {
		if (fLastSeparator != null) {
			((GridData) fLastSeparator.getLayoutData()).widthHint= minWidth;
		}
	}
	
	/**
	* Returns the tree control. When called the first time, the control will be
	* created.
	* @param parent The parent composite when called the first time, or <code>null</code>
	* after.
	*/
	public Control getTreeControl(Composite parent) {
		if (fTreeControl == null) {
			assertCompositeNotNull(parent);
			fTree= createTreeViewer(parent);
			fTreeControl= (Tree) fTree.getControl();
			fTreeControl.addKeyListener(new KeyAdapter() {
				public void keyPressed(KeyEvent e) {
					handleKeyPressed(e);
				}
			});
			fTree.setContentProvider(fTreeViewerAdapter);
			fTree.setLabelProvider(fLabelProvider);
			fTree.addSelectionChangedListener(fTreeViewerAdapter);