Bug 184602 [Progress] "Widget is disposed" when setting builders twice during build
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/ProgressMonitorDialog.java
*/
	private static int LABEL_DLUS = 21;
	private static int BAR_DLUS = 9;
	/**
	 * The progress indicator control.
	 */
	protected ProgressIndicator progressIndicator;
	/**
	 * The label control for the task. Kept for backwards compatibility.
	 */
	protected Label taskLabel;
	/**
	 * The label control for the subtask.
	 */
	protected Label subTaskLabel;
	/**
	 * The Cancel button control.
	 */
	protected Button cancel;
	/**
	 * Indicates whether the Cancel button is to be shown.
	 */
	protected boolean operationCancelableState = false;
	/**
	 * Indicates whether the Cancel button is to be enabled.
	 */
	protected boolean enableCancelButton;
	/**
	 * The progress monitor.
	 */