Bug 246105 [Dialogs] Title and description not layed out properly when title image is null
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/TitleAreaDialog.java
/**
	 * Sets the title bar color for this dialog.
	 * 
	 * @param color
	 *            the title bar color
	 */
	public void setTitleAreaColor(RGB color) {
		titleAreaRGB = color;
	}
	/**
	 * Sets the title image to be shown in the title area of this dialog.
	 * 
	 * @param newTitleImage
	 *            the title image to be shown
	 */
	public void setTitleImage(Image newTitleImage) {
		titleAreaImage = newTitleImage;
		if (titleImageLabel != null) {
			titleImageLabel.setImage(newTitleImage);
			titleImageLabel.setVisible(newTitleImage != null);
			if (newTitleImage != null) {
				determineTitleImageLargest();
				Control top;
				if (titleImageLargest)
					top = titleImageLabel;
				else
					top = messageLabel;
				resetWorkAreaAttachments(top);
			}
		}