/***********************************************************************

 * mt4j Copyright (c) 2008 - 2009, C.Ruff, Fraunhofer-Gesellschaft All rights reserved.

 *  

 *   This program 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 3 of the License, or

 *   (at your option) any later version.

 *

 *   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

 *

 ***********************************************************************/

package org.mt4j.components.visibleComponents.widgets.buttons;



import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.ArrayList;



import org.mt4j.components.bounds.BoundsZPlaneRectangle;

import org.mt4j.components.bounds.IBoundingShape;

import org.mt4j.components.interfaces.IclickableButton;

import org.mt4j.components.visibleComponents.shapes.AbstractShape;

import org.mt4j.components.visibleComponents.shapes.MTRectangle;

import org.mt4j.input.gestureAction.DefaultButtonClickAction;

import org.mt4j.input.inputProcessors.componentProcessors.dragProcessor.DragProcessor;

import org.mt4j.input.inputProcessors.componentProcessors.rotateProcessor.RotateProcessor;

import org.mt4j.input.inputProcessors.componentProcessors.scaleProcessor.ScaleProcessor;

import org.mt4j.input.inputProcessors.componentProcessors.tapProcessor.TapEvent;

import org.mt4j.input.inputProcessors.componentProcessors.tapProcessor.TapProcessor;



import processing.core.PApplet;

import processing.core.PImage;



/**

 * The Class MTImageButton. Can be used as a button displaying an image.

 * A tapprocessor is registered automatically. We can check if the button was

 * clicked by adding an actionlistener to it.

 * @author Christopher Ruff

 */

public class MTImageButton extends MTRectangle implements IclickableButton {

	

	/** The selected. */

	private boolean selected;

	

	/** The registered action listeners. */

	private ArrayList<ActionListener> registeredActionListeners;

	

	/**

	 * Instantiates a new mT image button.

	 *

	 * @param texture the texture

	 * @param pApplet the applet

	 * @deprecated constructor will be deleted! Please , use the constructor with the PApplet instance as the first parameter.

	 */

	public MTImageButton(PImage texture, PApplet pApplet) {

		this(pApplet, texture);

	}

	

	/**

	 * Instantiates a new mT image button.

	 * @param pApplet the applet

	 * @param texture the texture

	 */

	public MTImageButton(PApplet pApplet, PImage texture) {

		super(pApplet, texture);

		this.registeredActionListeners = new ArrayList<ActionListener>();

		

		this.setName("Unnamed image button");

		

		this.selected = false;

		

		this.setGestureAllowance(DragProcessor.class, false);

		this.setGestureAllowance(RotateProcessor.class, false);

		this.setGestureAllowance(ScaleProcessor.class, false);

		

		this.setEnabled(true);

		this.setBoundsBehaviour(AbstractShape.BOUNDS_ONLY_CHECK);

		

		//Make clickable

		this.setGestureAllowance(TapProcessor.class, true);

		this.registerInputProcessor(new TapProcessor(pApplet));

		this.addGestureListener(TapProcessor.class, new DefaultButtonClickAction(this));

		

		//Draw this component and its children above 

		//everything previously drawn and avoid z-fighting

		this.setDepthBufferDisabled(true);

	}

	

	

	@Override

	protected void setDefaultGestureActions() {

		//Dont register the usual drag,scale,rot processors

	}

	

	

	@Override

	protected IBoundingShape computeDefaultBounds(){

		return new BoundsZPlaneRectangle(this);

	}

	



	/**

	 * Adds the action listener.

	 * 

	 * @param listener the listener

	 */

	public synchronized void addActionListener(ActionListener listener){

		if (!registeredActionListeners.contains(listener)){

			registeredActionListeners.add(listener);

		}

	}

	

	/**

	 * Removes the action listener.

	 * 

	 * @param listener the listener

	 */

	public synchronized void removeActionListener(ActionListener listener){

		if (registeredActionListeners.contains(listener)){

			registeredActionListeners.remove(listener);

		}

	}

	

	/**

	 * Gets the action listeners.

	 * 

	 * @return the action listeners

	 */

	public synchronized ActionListener[] getActionListeners(){

		return registeredActionListeners.toArray(new ActionListener[this.registeredActionListeners.size()]);

	}

	

	/**

	 * Fire action performed.

	 */

	protected synchronized void fireActionPerformed() {

		ActionListener[] listeners = this.getActionListeners();

        for (ActionListener listener : listeners) {

            listener.actionPerformed(new ActionEvent(this, ActionEvent.ACTION_PERFORMED, "action performed on tangible button"));

        }

	}

	

	/**

	 * fires an action event with a ClickEvent Id as its ID.

	 * 

	 * @param ce the ce

	 */

	public synchronized void fireActionPerformed(TapEvent ce) {

		ActionListener[] listeners = this.getActionListeners();

        for (ActionListener listener : listeners) {

            listener.actionPerformed(new ActionEvent(this, ce.getTapID(), "action performed on tangible button"));

        }

	}



	public boolean isSelected() {

		return selected;

	}



	public void setSelected(boolean selected) {

		this.selected = selected;

//		this.setStrokeWeight(selected ? this.getStrokeWeight() + 2 : 0);

	}





	

	

}