package elte.java2_utikalauz5.java3d;

import	java.awt.*;
import  java.awt.event.*;
import	javax.vecmath.*;
import	javax.media.j3d.*;

/**
3D transzformációk szemléltetése.

@link.forrásfájl {@docRoot}/../data/java3d/src TransformDemo.java
@link.letöltés {@docRoot}/../data/java3d TransformDemo.jar
@since Java 2 Útikalauz programozóknak 5.0
*/
class TransformDemo extends Frame implements ActionListener {
	Transform3D tr1 = new Transform3D ( );
	Transform3D tr2 = new Transform3D ( );
	Transform3D tr3 = new Transform3D ( );
	Transform3D tr4 = new Transform3D ( );
	TransformGroup transformGroup = new TransformGroup();

    /** Verziószám */
    private final static long serialVersionUID = 15L;

	public static void main(String[] args)
	{
		new TransformDemo();
	}

	public TransformDemo()
	{
		super("TransformDemo");
        enableEvents(java.awt.AWTEvent.WINDOW_EVENT_MASK);

		GraphicsConfiguration config = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getBestConfiguration(new GraphicsConfigTemplate3D());
		Canvas3D c = new Canvas3D(config);
		add(c);
		MenuBar menuBar = new MenuBar();
		Menu menu = new Menu("Transzformáció");
		MenuItem m1 = new MenuItem("Identitás");
		MenuItem m2 = new MenuItem("Eltolás");
		MenuItem m3 = new MenuItem("Forgatás");
		MenuItem m4 = new MenuItem("Skálázás");
		m1.addActionListener(this);
		m2.addActionListener(this);
		m3.addActionListener(this);
		m4.addActionListener(this);
		menu.add(m1);
		menu.add(m2);
		menu.add(m3);
		menu.add(m4);
		menuBar.add(menu);
		setMenuBar(menuBar);

		UniverseBuilder u = new UniverseBuilder(c);
		BranchGroup scene = createSceneGraph();
		u.addBranchGraph(scene);

		setSize(300,300);
		setVisible(true);
	}

        /**
        Ablakesemény feldolgozása, bezáráskor kilépés.

        @param esemény A fellépett esemény
        */
        @Override
        protected void processWindowEvent(java.awt.event.WindowEvent esemény) {
            if (esemény.getID() == esemény.WINDOW_CLOSING) System.exit(0);
            super.processWindowEvent( esemény );
        }

	public BranchGroup createSceneGraph()
	{
		tr2.set( new Vector3d( 2., 0., 0. ) );
		tr3.set( new AxisAngle4d( 0., 1., 0., Math.PI/4. ) );
		tr4.set( 2.0 );

		BranchGroup branchGroup = new BranchGroup();
		transformGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
		transformGroup.addChild(new ColorCube().getShape());
		branchGroup.addChild(transformGroup);
		return branchGroup;
	}

	public void actionPerformed( ActionEvent e)
	{
		if (e.getActionCommand().compareTo("Identitás")==0) transformGroup.setTransform(tr1);
		if (e.getActionCommand().compareTo("Eltolás")==0) transformGroup.setTransform(tr2);
		if (e.getActionCommand().compareTo("Forgatás")==0) transformGroup.setTransform(tr3);
		if (e.getActionCommand().compareTo("Skálázás")==0) transformGroup.setTransform(tr4);
	}


class UniverseBuilder {
	Locale			locale;

	UniverseBuilder(Canvas3D c)
	{
		Transform3D t = new Transform3D();
		Transform3D t2 = new Transform3D();
		t2.setEuler( new Vector3d(-35.0*(Math.PI/180.0),45.0*(Math.PI/180.0),0.0));
		t.set(4,new Vector3d(6.0,5.0,6.0));
		t.mul(t,t2);

		VirtualUniverse	universe = new VirtualUniverse();
		locale = new Locale(universe);

		PhysicalBody body = new PhysicalBody();
		PhysicalEnvironment environment = new PhysicalEnvironment();
		BranchGroup viewPlatformBranchGroup = new BranchGroup();
		TransformGroup viewPlatformTransformGroup = new TransformGroup(t);
		ViewPlatform viewPlatform = new ViewPlatform();

		View view = new View();
		view.addCanvas3D(c);
		view.setPhysicalBody(body);
		view.setPhysicalEnvironment(environment);
		view.attachViewPlatform(viewPlatform);

		viewPlatformTransformGroup.addChild(viewPlatform);
		viewPlatformBranchGroup.addChild(viewPlatformTransformGroup);
		locale.addBranchGraph(viewPlatformBranchGroup);
	}

	void addBranchGraph(BranchGroup bg)
	{
		locale.addBranchGraph(bg);
	}
}

class ColorCube extends Object
{
	double verts[] = {
		// elso lap
		1.0, -1.0,  1.0,	1.0,  1.0,  1.0,
		-1.0,  1.0,  1.0,	-1.0, -1.0,  1.0,
		// hatso lap
		-1.0, -1.0, -1.0,	-1.0,  1.0, -1.0,
		1.0,  1.0, -1.0,	1.0, -1.0, -1.0,
		// jobb lap
		1.0, -1.0, -1.0,	1.0,  1.0, -1.0,
		1.0,  1.0,  1.0,	1.0, -1.0,  1.0,
		// bal lap
		-1.0, -1.0,  1.0,	-1.0,  1.0,  1.0,
		-1.0,  1.0, -1.0,	-1.0, -1.0, -1.0,
		// fedo lap
		1.0,  1.0,  1.0,	1.0,  1.0, -1.0,
		-1.0,  1.0, -1.0,	-1.0,  1.0,  1.0,
		// alaplap
		-1.0, -1.0,  1.0,	-1.0, -1.0, -1.0,
		1.0, -1.0, -1.0,	1.0, -1.0,  1.0
	};

	float[] colors = {
		// elso lap (piros)
		1.0f, 0.0f, 0.0f,		1.0f, 0.0f, 0.0f,
		1.0f, 0.0f, 0.0f,		1.0f, 0.0f, 0.0f,
		// hatso lap (zold)
		0.0f, 1.0f, 0.0f,		0.0f, 1.0f, 0.0f,
		0.0f, 1.0f, 0.0f,		0.0f, 1.0f, 0.0f,
		// jobb lap (kek)
		0.0f, 0.0f, 1.0f,		0.0f, 0.0f, 1.0f,
		0.0f, 0.0f, 1.0f,		0.0f, 0.0f, 1.0f,
		// bal lap (sarga)
		1.0f, 1.0f, 0.0f,		1.0f, 1.0f, 0.0f,
		1.0f, 1.0f, 0.0f,		1.0f, 1.0f, 0.0f,
		// fedo lap (magenta)
		1.0f, 0.0f, 1.0f,		1.0f, 0.0f, 1.0f,
		1.0f, 0.0f, 1.0f,		1.0f, 0.0f, 1.0f,
		// alaplap (cian)
		0.0f, 1.0f, 1.0f,		0.0f, 1.0f, 1.0f,
		0.0f, 1.0f, 1.0f,		0.0f, 1.0f, 1.0f
	};

	private Shape3D shape;

	public ColorCube()
	{
		QuadArray cube = new QuadArray(24, QuadArray.COORDINATES | QuadArray.COLOR_3);

		cube.setCoordinates(0, verts);
		cube.setColors(0, colors);

		shape = new Shape3D(cube, new Appearance());
	}

	public Shape3D getShape()
	{
		return shape;
	}
}
}