Bug 131771 Match animated message behaviour in Preferences
An enhancement should be made to Preferences so that warnings and errors show up in a sliding message area like it they do in TitleAreaDialog.
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceMessageArea.java
return textValue;
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.jface.dialogs.DialogMessageArea#clearErrorMessage()
	 */
	public void clearErrorMessage() {
        if (lastMessageText == null) {
			restoreTitle();
		} else {
			updateText(lastMessageText, lastMessageType);
		}
	}
	/* (non-Javadoc)
	 * @see org.eclipse.jface.dialogs.DialogMessageArea#setTitleLayoutData(java.lang.Object)
	 */
	public void setTitleLayoutData(Object layoutData) {
        titleLabel.setLayoutData(layoutData);
	}
	/* (non-Javadoc)
	 * @see org.eclipse.jface.dialogs.DialogMessageArea#showTitle(java.lang.String, org.eclipse.swt.graphics.Image)
	 */
	public void showTitle(String titleMessage, Image titleImage) {
	       titleLabel.setImage(titleImage);
	        titleLabel.setText(titleMessage);
	        restoreTitle();
	        return;
	}
}