Bug 85147 [Preferences] filter field: Looses focus on type
20050208 When you type in the filter field, the focus ofter switched to the tree. You have to give the filter field the focus again to continue typing
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
titleArea.addControlListener(new ControlAdapter() {
			/* (non-Javadoc)
			 * @see org.eclipse.swt.events.ControlAdapter#controlResized(org.eclipse.swt.events.ControlEvent)
			 */
			public void controlResized(ControlEvent e) {
				updateMessage();
			}
		});
		final IPropertyChangeListener fontListener = new IPropertyChangeListener() {
			public void propertyChange(PropertyChangeEvent event) {
				if (JFaceResources.BANNER_FONT.equals(event.getProperty()))
					updateMessage();
				if (JFaceResources.DIALOG_FONT.equals(event.getProperty())) {
					updateMessage();
					Font dialogFont = JFaceResources.getDialogFont();
					updateTreeFont(dialogFont);
					Control[] children = ((Composite) buttonBar).getChildren();
					for (int i = 0; i < children.length; i++)
						children[i].setFont(dialogFont);
				}
			}
		};
		titleArea.addDisposeListener(new DisposeListener() {
			public void widgetDisposed(DisposeEvent event) {
				JFaceResources.getFontRegistry().removeListener(fontListener);
			}
		});
		JFaceResources.getFontRegistry().addListener(fontListener);
		
		titleImage = new Label(titleArea, SWT.LEFT);