com.sun.javafx.scene.NodeHelper Maven / Gradle / Ivy
/*
* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
* 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,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package com.sun.javafx.scene;
import javafx.scene.Node;
import javafx.scene.SubScene;
/**
* Used to access internal methods of Node.
*/
public class NodeHelper {
private static NodeAccessor nodeAccessor;
static {
forceInit(Node.class);
}
private NodeHelper() {
}
public static void layoutNodeForPrinting(Node node) {
nodeAccessor.layoutNodeForPrinting(node);
}
public static boolean isDerivedDepthTest(Node node) {
return nodeAccessor.isDerivedDepthTest(node);
};
public static SubScene getSubScene(Node node) {
return nodeAccessor.getSubScene(node);
};
public static void setNodeAccessor(final NodeAccessor newAccessor) {
if (nodeAccessor != null) {
throw new IllegalStateException();
}
nodeAccessor = newAccessor;
}
public interface NodeAccessor {
void layoutNodeForPrinting(Node node);
boolean isDerivedDepthTest(Node node);
SubScene getSubScene(Node node);
}
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
}
}
}