java-org.hwo/src/org/hwo/interactiveobjects/InteractiveObjectHelper.java

package org.hwo.interactiveobjects;

import java.util.Hashtable;

public class InteractiveObjectHelper {

	
	private static Hashtable<Object, IInteractiveObjectEditor> p_editors = new Hashtable<Object, IInteractiveObjectEditor>();
		
	private static InteractiveObject getInteractiveObject(Class<?> clazz)
	{
		InteractiveObject io = clazz.getAnnotation(InteractiveObject.class);
		if (io != null)
			return io;
		if (clazz.getSuperclass() != null)
			return getInteractiveObject(clazz.getSuperclass());
		return null;
	}
	
	private static InteractiveObject getInteractiveObject(Object item)
	{
		Class<?> clazz = item.getClass();
		return getInteractiveObject(clazz);
	}	
	
	public static boolean isInteractiveObject(Class<?> clazz)
	{
		return (getInteractiveObject(clazz)!=null);
	}
	
	public static IInteractiveObjectEditor getEditor(Object item)
	{
		InteractiveObject io = getInteractiveObject(item); 

		if (io != null)
		{
			if (!p_editors.containsKey(item))
			{
				try
				{
					IInteractiveObjectEditor editor = io.editor().newInstance();
					p_editors.put(item, editor);
				} catch (Exception ex)
				{
					System.err.println(ex.toString());
					ex.printStackTrace();
					return null;
				}
			}
			return p_editors.get(item);
		}
		return null;
	}

	public static void showEditor(Object o)
	{
		IInteractiveObjectEditor editor = getEditor(o);
		editor.setInteractiveObject(o);
		editor.setVisible(true);		
	}
	
}