Bug 245457 [Forms] ExpandableComposite should have option of not drawing the title focus box
bundles/org.eclipse.ui.forms/src/org/eclipse/ui/forms/widgets/ExpandableComposite.java
*/
	public void setTextClient(Control textClient) {
		if (this.textClient != null)
			this.textClient.dispose();
		this.textClient = textClient;
	}
	/**
	 * Returns the difference in height between the text and the text client (if
	 * set). This difference can cause vertical alignment problems when two
	 * expandable composites are placed side by side, one with and one without
	 * the text client. Use this method obtain the value to add to either
	 * <code>descriptionVerticalSpacing</code> (if you have description) or
	 * <code>clientVerticalSpacing</code> to correct the alignment of the
	 * expandable without the text client.
	 * 
	 * @return the difference in height between the text and the text client or
	 *         0 if no corrective action is needed.
	 * @since 3.3
	 */
	public int getTextClientHeightDifference() {
		if (textClient == null || textLabel == null)
			return 0;
		int theight = textLabel.computeSize(SWT.DEFAULT, SWT.DEFAULT).y;
		int tcheight = textClient.computeSize(SWT.DEFAULT, SWT.DEFAULT).y;
		return Math.max(tcheight - theight, 0);
	}
	/**
	 * Tests if this expandable composite renders a title bar around the text.
	 * 
	 * @return <code>true</code> for <code>TITLE_BAR</code> or