package elte.java2_utikalauz5.java3d;

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

/**
Háttérkép használatra példaprogram.
<P align="center"><IMG src="{@docRoot}/../data/java3d/img/BackgroundDemo.gif"></P>

@link.forrásfájl {@docRoot}/../data/java3d/src BackgroundDemo.java
@link.letöltés {@docRoot}/../data/java3d BackgroundDemo.jar
@since Java 2 Útikalauz programozóknak 5.0
*/
class BackgroundDemo extends Frame {
	int width=200;
	int height=126;
	MyImageComponent2D myImage = new MyImageComponent2D("sky_200x126.jpg",width,height,
						BufferedImage.TYPE_INT_RGB,ImageComponent.FORMAT_RGB8);

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

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

	public BackgroundDemo()
	{
		super("Direkt csúnya BackgroundDemo");
        enableEvents(java.awt.AWTEvent.WINDOW_EVENT_MASK);

		GraphicsConfiguration config = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getBestConfiguration(new GraphicsConfigTemplate3D());
		Canvas3D c = new Canvas3D(config);
		add(c);

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

		setSize(width+100,height+100);
		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()
	{
		BranchGroup branchGroup = new BranchGroup();
		BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);

		Background background = new Background(myImage.getImageComponent2D());
		background.setApplicationBounds(bounds);

		Transform3D transform3D = new Transform3D();
		transform3D.set(0.6f);

		TransformGroup transformGroup = new TransformGroup(transform3D);
		transformGroup.addChild(new ColorCube().getShape());
		branchGroup.addChild(transformGroup);
		branchGroup.addChild(background);
		return branchGroup;
	}

class UniverseBuilder {
	Locale			locale;

	UniverseBuilder(Canvas3D c)
	{
		Transform3D t = new Transform3D();
		Transform3D t2 = new Transform3D();
		t2.setEuler( new Vector3d(-15.0*(Math.PI/180.0),45.0*(Math.PI/180.0),0.0));
		t.set(4,new Vector3d(6.0,3.0,6.0));
		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 {
	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;
	}
}

class MyImageComponent2D {
	ImageComponent2D imageComponent2D = null;

	public MyImageComponent2D(String fname, int w, int h, int format1, int format2)
	{

		Toolkit toolkit = Toolkit.getDefaultToolkit();
		Image image = toolkit.getImage(getClass().getResource( fname ));

   		BufferedImage bImage = new BufferedImage(w, h, format1);
	        int[] intPixels =((DataBufferInt)bImage.getRaster().getDataBuffer()).getData();

		PixelGrabber pg = new PixelGrabber(image, 0, 0, w, h, intPixels, 0, w);
		try { pg.grabPixels(); }
			catch (InterruptedException e) {;}
		imageComponent2D = new ImageComponent2D(format2, bImage);

		imageComponent2D.setCapability(ImageComponent.ALLOW_SIZE_READ);
		imageComponent2D.setCapability(ImageComponent.ALLOW_FORMAT_READ);
		imageComponent2D.setCapability(ImageComponent.ALLOW_IMAGE_READ);
	}

	public ImageComponent2D getImageComponent2D()
	{
		return imageComponent2D;
	}
}
}