VFX3DUtil.java

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/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
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package eu.mihosoft.vrl.v3d;
 
import javafx.event.EventHandler;
import javafx.event.EventType;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.scene.shape.TriangleMesh;
import javafx.scene.shape.MeshView;
import javafx.scene.paint.PhongMaterial;
import javafx.scene.shape.DrawMode;
import javafx.scene.shape.CullFace;
import javafx.scene.input.MouseButton;
import javafx.scene.input.MouseEvent;
import javafx.scene.transform.Rotate;
 
// TODO: Auto-generated Javadoc
public class VFX3DUtil {
 
    private VFX3DUtil() {
        throw new AssertionError("don't instanciate me!");
    }
 
  
 
    public static void addMouseBehavior(
            Node n, Scene eventReceiver, MouseButton btn) {
        eventReceiver.addEventHandler(MouseEvent.ANY,
                new MouseBehaviorImpl1(n, btn));
    }
 
    public static void addMouseBehavior(
            Node n, Node eventReceiver, MouseButton btn) {
        eventReceiver.addEventHandler(MouseEvent.ANY,
                new MouseBehaviorImpl1(n, btn));
    }
}
 
// rotation behavior implementation
class MouseBehaviorImpl1 implements EventHandler<MouseEvent> {
 
    private double anchorAngleX;
    private double anchorAngleY;
    private double anchorX;
    private double anchorY;
    private final Rotate rotateX = new Rotate(0, 0, 0, 0, Rotate.X_AXIS);
    private final Rotate rotateZ = new Rotate(0, 0, 0, 0, Rotate.Z_AXIS);
    private MouseButton btn;
 
    public MouseBehaviorImpl1(Node n, MouseButton btn) {
        n.getTransforms().addAll(rotateX, rotateZ);
        this.btn = btn;
 
        if (btn == null) {
            this.btn = MouseButton.MIDDLE;
        }
    }
 
    @Override
    public void handle(MouseEvent t) {
        if (!btn.equals(t.getButton())) {
            return;
        }
 
        t.consume();
 
        if (MouseEvent.MOUSE_PRESSED.equals(t.getEventType())) {
            anchorX = t.getSceneX();
            anchorY = t.getSceneY();
            anchorAngleX = rotateX.getAngle();
            anchorAngleY = rotateZ.getAngle();
            t.consume();
        } else if (MouseEvent.MOUSE_DRAGGED.equals(t.getEventType())) {
            rotateZ.setAngle(anchorAngleY + (anchorX - t.getSceneX()) * 0.7);
            rotateX.setAngle(anchorAngleX - (anchorY - t.getSceneY()) * 0.7);
 
        }
 
    }
}