package causation.lab.plaf;

import javax.swing.plaf.*;
import javax.swing.Icon;
import java.awt.Dimension;
import java.net.URL;
import causation.lab.WBVariable;

/**
 * @version	0.9	Aug 30, 1999
 * @author	David Danks
 */
public abstract class WBVariableUI extends ComponentUI {

/**
 * @return	Should be the Icon used for the name, if there is one;
 *				<code>null</code>, otherwise.
 */
	public abstract Icon getNameIcon();
/**
 * @param	icon	Should set the icon used for the name to <code>icon</code>.  
 * 					<code>null</code> should be an acceptable value
 */
	public abstract void setNameIcon(Icon icon);

/**
 * @return	Should be an icon of the lock that is suitable for 
 * 			representing over a broken arrow.  <code>null</code> should be 
 *				sent, if there is no such icon
 */
	public abstract Icon getDisabledLockIcon();

/**
 * @return	Should return the URL used as a codebase for loading images
 */
	public abstract URL getCodebase();
/**
 * @param	newURL	Should set the codebase used for loading images to
 *							<code>newURL</code>.  <code>null</code> should be sent
 *							if no images should be loaded
 */
	public abstract void setCodebase(URL newURL);

/**
 * @param	v	The WBVariable for which the size is being computed
 * @return		Should be the preferred size of the WBVariable
 */
	public abstract Dimension getPreferredSize(WBVariable v);
/**
 * @param	v	The WBVariable for which the size is being computed
 * @return		Should be the minimum size of the WBVariable
 */
	public abstract Dimension getMinimumSize(WBVariable v);

}