/**
 * Copyright 2014 JogAmp Community. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 *
 *    1. Redistributions of source code must retain the above copyright notice, this list of
 *       conditions and the following disclaimer.
 *
 *    2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``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 JogAmp Community 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.
 *
 * The views and conclusions contained in the software and documentation are those of the
 * authors and should not be interpreted as representing official policies, either expressed
 * or implied, of JogAmp Community.
 */

package demos.instancedRendering;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.MouseWheelEvent;
import java.awt.event.MouseWheelListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.media.opengl.GLCapabilities;
import javax.media.opengl.GLProfile;
import javax.media.opengl.awt.GLCanvas;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;

import com.jogamp.opengl.test.junit.jogl.demos.gl4.IView;
import com.jogamp.opengl.test.junit.jogl.demos.gl4.TrianglesInstancedRendererHardcoded;
import com.jogamp.opengl.util.FPSAnimator;

public class ManyTriangleInstanced implements IView {

	private final JFrame frame;
	private final FPSAnimator animator;
	private final GLCanvas panel;
	private final Dimension dim = new Dimension(1024, 768);

	protected float winScale = 0.1f;
	private static final float WIN_SCALE_MIN = 1e-3f;
	private static final float WIN_SCALE_MAX = 100f;

	private final TrianglesInstancedRendererHardcoded renderer;

	public static void main(String[] args){
		SwingUtilities.invokeLater(new Runnable() {
			@Override
			public void run() {
				new ManyTriangleInstanced();
			}
		});
	}

	public ManyTriangleInstanced() {
		renderer = new TrianglesInstancedRendererHardcoded(this);

		frame = new JFrame(this.getClass().getSimpleName());
		frame.setLayout(new BorderLayout());
		frame.addWindowListener(new WindowAdapter() {
			@Override
			public void windowClosing(WindowEvent e) {
				animator.stop();
				System.exit(0);
			}
		});
		panel = new GLCanvas(new GLCapabilities(GLProfile.get(GLProfile.GL4)));
		panel.addGLEventListener(renderer);

		frame.addMouseWheelListener(new MouseWheelListener() {

			@Override
			public void mouseWheelMoved(MouseWheelEvent e) {
				int step = e.getWheelRotation();
				if(step > 0) {
					winScale *= 1.05;
					if(winScale > WIN_SCALE_MAX) winScale = WIN_SCALE_MAX;
				} else if(0 > step ) {
					winScale *= 0.95;
					if(winScale < WIN_SCALE_MIN) winScale = WIN_SCALE_MIN;
				}
			}
		});

		panel.setPreferredSize(dim);
		frame.add(panel, BorderLayout.CENTER);
		frame.pack();
		frame.setVisible(true);
		animator = new FPSAnimator(panel, 60, true);
		animator.start();
	}

	@Override
	public float getScale() {
		return winScale;
	}
}