com.sun.javafx.scene.CameraHelper Maven / Gradle / Ivy
/*
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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).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package com.sun.javafx.scene;
import javafx.geometry.Point2D;
import javafx.geometry.Point3D;
import javafx.scene.Camera;
import javafx.scene.Node;
/**
* Used to access internal methods of Camera.
*/
public class CameraHelper {
private static CameraAccessor cameraAccessor;
static {
forceInit(Camera.class);
}
private CameraHelper() {
}
public static Point2D project(Camera camera, Point3D p) {
return cameraAccessor.project(camera, p);
}
public static Point2D pickNodeXYPlane(Camera camera, Node node, double x, double y) {
return cameraAccessor.pickNodeXYPlane(camera, node, x, y);
}
public static Point3D pickProjectPlane(Camera camera, double x, double y) {
return cameraAccessor.pickProjectPlane(camera, x, y);
}
public static void setCameraAccessor(final CameraAccessor newAccessor) {
if (cameraAccessor != null) {
throw new IllegalStateException();
}
cameraAccessor = newAccessor;
}
public interface CameraAccessor {
Point2D project(Camera camera, Point3D p);
Point2D pickNodeXYPlane(Camera camera, Node node, double x, double y);
Point3D pickProjectPlane(Camera camera, double x, double y);
}
private static void forceInit(final Class classToInit) {
try {
Class.forName(classToInit.getName(), true,
classToInit.getClassLoader());
} catch (final ClassNotFoundException e) {
throw new AssertionError(e); // Can't happen
}
}
}