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/*
 * Copyright (c) 2008-2011, Piccolo2D project, http://piccolo2d.org
 * Copyright (c) 1998-2008, University of Maryland
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided
 * that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this list of conditions
 * and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions
 * and the following disclaimer in the documentation and/or other materials provided with the
 * distribution.
 *
 * None of the name of the University of Maryland, the name of the Piccolo2D project, or the names of its
 * contributors may be used to endorse or promote products derived from this software without specific
 * prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.piccolo2d.tutorial;

import java.awt.Color;
import java.awt.event.KeyEvent;
import java.awt.geom.AffineTransform;
import java.io.File;
import java.util.ArrayList;

import org.piccolo2d.PNode;
import org.piccolo2d.event.PBasicInputEventHandler;
import org.piccolo2d.event.PInputEvent;
import org.piccolo2d.extras.PFrame;
import org.piccolo2d.nodes.PImage;


public class PiccoloPresentation extends PFrame {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    protected PNode slideBar;
    protected PNode currentSlide;
    protected PBasicInputEventHandler eventHandler;
    protected ArrayList slides = new ArrayList();

    public PiccoloPresentation() {
        super();
    }

    public void initialize() {
        setFullScreenMode(true);
        loadSlides();

        eventHandler = new PBasicInputEventHandler() {
            public void keyReleased(final PInputEvent event) {
                if (event.getKeyCode() == KeyEvent.VK_SPACE) {
                    final int newIndex = slides.indexOf(currentSlide) + 1;
                    if (newIndex < slides.size()) {
                        goToSlide((PNode) slides.get(newIndex));
                    }
                }
            }

            public void mouseReleased(final PInputEvent event) {
                final PNode picked = event.getPickedNode();

                if (picked.getParent() == slideBar) {
                    picked.moveToFront();
                    if (picked.getScale() == 1) {
                        goToSlide(null);
                    }
                    else {
                        goToSlide(picked);
                    }
                }
            }
        };

        getCanvas().requestFocus();
        getCanvas().addInputEventListener(eventHandler);
        getCanvas().getRoot().getDefaultInputManager().setKeyboardFocus(eventHandler);
        getCanvas().removeInputEventListener(getCanvas().getZoomEventHandler());
        getCanvas().removeInputEventListener(getCanvas().getPanEventHandler());
    }

    public void goToSlide(final PNode slide) {
        if (currentSlide != null) {
            currentSlide.animateToTransform((AffineTransform) currentSlide.getAttribute("small"), 1000);
        }

        currentSlide = slide;

        if (currentSlide != null) {
            currentSlide.moveToFront();
            currentSlide.animateToTransform((AffineTransform) currentSlide.getAttribute("large"), 1000);
        }
    }

    public void loadSlides() {
        slideBar = new PNode();
        slideBar.setPaint(Color.DARK_GRAY);
        slideBar.setBounds(0, 0, getCanvas().getWidth(), 100);
        slideBar.setOffset(0, getCanvas().getHeight() - 100);
        getCanvas().getLayer().addChild(slideBar);

        final File[] slideFiles = new File("slides").listFiles();
        for (int i = 0; i < slideFiles.length; i++) {
            PNode slide = new PImage(slideFiles[i].getPath());

            if (slide.getHeight() != getHeight() - 100) {
                slide = new PImage(slide.toImage(getWidth(), getHeight() - 100, null));
            }
            slide.offset((getWidth() - slide.getWidth()) / 2, -(getHeight() - 100));
            slide.addAttribute("large", slide.getTransform());

            slide.setTransform(new AffineTransform());
            slide.scale((100 - 20) / slide.getHeight());
            slide.offset(i * (slide.getFullBoundsReference().getWidth() + 10) + 10, 10);
            slide.addAttribute("small", slide.getTransform());

            slideBar.addChild(slide);
            slides.add(slide);
        }

        goToSlide((PNode) slides.get(0));
    }

    public static void main(final String[] argv) {
        new PiccoloPresentation();
    }
}