/*
 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 */

import javafx.animation.RotateTransition;
import javafx.application.Application;
import javafx.builders.GroupBuilder;
import javafx.builders.PolygonBuilder;
import javafx.builders.SceneBuilder;
import javafx.geometry.Point3D;
import javafx.scene.DepthTest;
import javafx.scene.Group;
import javafx.scene.PerspectiveCamera;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.scene.shape.Polygon;
import javafx.scene.shape.Rectangle;
import javafx.scene.transform.Rotate;
import javafx.stage.Stage;
import javafx.util.Duration;


/**
 *
 * @author Alexander Kouznetsov
 */
public class ClippingTest extends Application {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage primaryStage) throws Exception {

        Group root = GroupBuilder.create()
                .children(new Triangle(new Point3D(0, 0, 0), new Point3D(60, 0, 0), new Point3D(30, 50, 0)))
                .translateX(150)
                .translateY(150)
                .translateZ(0)
//                .rotationAxis(Rotate.Y_AXIS)
//                .rotate(30)
                .build();

//        Timeline animation = TimelineBuilder.create()
//                .cycleCount(Timeline.INDEFINITE)
//                .keyFrames(new KeyFrame(Duration.valueOf(3500), new KeyValue(root.translateZProperty(), 30)),
//                new KeyFrame(Duration.valueOf(7000), new KeyValue(root.translateZProperty(), 0)))
//                .build();
//        animation.play();
        
        root.setRotationAxis(Rotate.Y_AXIS);
        RotateTransition rt = new RotateTransition(Duration.valueOf(5000), root);
        rt.setByAngle(360);
        rt.play();
        
        root.setDepthTest(DepthTest.ENABLE);

        Scene scene = SceneBuilder.create()
                .root(root)
                .camera(new PerspectiveCamera())
                .build();

        primaryStage.setScene(scene);
        primaryStage.setVisible(true);
    }

}

/**
 *
 * @author Alexander Kouznetsov
 */
class Triangle extends Group {
    
    private Point3D vertex1;
    private Point3D vertex2;
    private Point3D vertex3;

    /**
     * Creates triangle. Z is not used yet
     * @param vertex1
     * @param vertex2
     * @param vertex3
     */
    public Triangle(Point3D vertex1, Point3D vertex2, Point3D vertex3) {
        this.vertex1 = vertex1;
        this.vertex2 = vertex2;
        this.vertex3 = vertex3;

        Point3D v1 = new Point3D(
                vertex2.getX() - vertex1.getX(),
                vertex2.getY() - vertex1.getY(),
                vertex2.getZ() - vertex1.getZ());

        Point3D v2 = new Point3D(
                vertex3.getX() - vertex1.getX(),
                vertex3.getY() - vertex1.getY(),
                vertex3.getZ() - vertex1.getZ());

        double x1, y1, x2, y2;

        x1 = v1.getX();
        y1 = v1.getY();

        x2 = v2.getX();
        y2 = v2.getY();

        Polygon clipping = PolygonBuilder.create()
                .points(0d, 0d, x1, y1, x2, y2)
                .build();

        Rectangle node = new Rectangle(Math.max(x1, x2), Math.max(y1, y2), Color.RED);

        node.setClip(clipping);

        getChildren().setAll(node);
    }
}