displaymanager.java

NetGUI v0.4.1 INSTALL Instructions Pedro de la

/*
 * Copyright (C) 2005, 2006 
 * Santiago Carot Nemesio
 *
 * This file is part of NetGUI.
 *
 * NetGUI is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * NetGUI is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with NetGUI; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *  
 */

import edu.umd.cs.piccolo.*;
import edu.umd.cs.piccolo.nodes.*;
import edu.umd.cs.piccolox.*;
import edu.umd.cs.piccolo.util.*;
import edu.umd.cs.piccolox.handles.PBoundsHandle;

import java.util.*;

public class DisplayManager
{
	private PCamera camera;
	private PRoot root;
	private HashMap hiddenLayers; 

	public DisplayManager (PRoot r, PCamera pc)
	{
		root = r;
		camera = pc;
		hiddenLayers = new HashMap ();
	}

	public void addLayerOnTop(PLayer layer)
	{
		if (camera.indexOfLayer(layer) == -1)
			root.addChild(layer);
		else
			camera.removeLayer(layer);
		camera.addLayer(layer);
	}

	public void addLayerAtBottom(PLayer layer)
	{
		if (camera.indexOfLayer(layer) == -1)
			root.addChild(layer);
		else
			camera.removeLayer(layer);
		camera.addLayer(1,layer);
	}

	public void downLayer(PLayer layer)
	{
		int index = camera.indexOfLayer(layer);

		if (!(index == -1))
		{
			if (!(index==1)) //No esta en el nivel m醩 profundo
			{
				camera.removeLayer(layer);
				camera.addLayer(index-1,layer);
			}
		}
	}

	public void upLayer(PLayer layer)
	{
		int index = camera.indexOfLayer(layer);

		if (!(index == -1))
		{
			if (!(index==camera.getLayerCount()-1)) //No esta en el nivel m醩 alto
			{
				camera.removeLayer(layer);
				camera.addLayer(index+1,layer);
			}
		}
	}

	public void hideLayer(PLayer layer)
	{
		int index = camera.indexOfLayer(layer);

		if (!(index == -1)) //Layer existe
		{
			Integer deep = new Integer(index);
			camera.removeLayer(layer);
			hiddenLayers.put(layer,deep);
		}
	}

	public void showLayer(PLayer layer)
	{
		if (hiddenLayers.containsKey(layer))
		{
			int index = ((Integer)(hiddenLayers.get(layer))).intValue();
			camera.addLayer(index, layer);
			hiddenLayers.remove(layer);
		}
	}

	public void toFrontLayer (PLayer layer)
	{
		int index = camera.indexOfLayer(layer);

		if (!(index == -1)) //Layer existe
		{
			if (!(index==camera.getLayerCount()-1)) //No esta en el nivel m醩 alto
			{
				camera.removeLayer(layer);
				camera.addLayer(layer);
			}
		}
	}

	public void toBottomLayer (PLayer layer)
	{
		int index = camera.indexOfLayer(layer);

		if (!(index == -1)) //Layer existe
		{
			if (!(index==1)) //No esta en el nivel m醩 profundo
			{
				camera.removeLayer(layer);
				camera.addLayer(1,layer);
			}
		}
	}
}