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Scenic View is a JavaFX application designed to make it simple to understand the current state of your application scenegraph, and to also easily manipulate properties of the scenegraph without having to keep editing your code. This lets you find bugs, and get things pixel perfect without having to do the compile-check-compile dance.

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/*
 * Scenic View, 
 * Copyright (C) 2012 Jonathan Giles, Ander Ruiz, Amy Fowler, Matthieu Brouillard 
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */
package org.fxconnector.helper;

import java.util.Iterator;

import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Window;

public class FXUtils {
    /**
     * Retrieves the parent of the given node 
     * @param n the node for which the parent is to be found
     * @return the found parent or null
     */
    public static Parent parentOf(Node n) {
        if (n == null) {
            return null;
        }
        Parent p = n.getParent();
        if (p != null) {
            return parentOf(p);
        }
        if (n instanceof Parent) {
            return (Parent) n;
        }
        
        return null;
    }

    
    /**
     * Retrieves the root window containing the given node
     * @param n the node to look window for
     * @return the window the node belongs to, or null if it cannot be found
     */
    @SuppressWarnings("deprecation")
    public static Window windowOf(Node n) {
        if (n == null) {
            return null;
        }

        Parent p = n.getParent();
        if (p != null) {
            return windowOf(p);
        }

        if (n instanceof Parent) {
            Parent container = (Parent) n;

            for (Iterator it = Window.impl_getWindows(); it.hasNext();) {
                Window w = it.next();
                if (w.getScene() != null) {
                    if (container == w.getScene().getRoot()) {
                        return w;
                    }
                }
            }
        }

        return null;
    }

    /**
     * Retrieves the root window containing the given scene
     * @param s the scene to look window for
     * @return the window the scene belongs to, or null if it cannot be found
     */
    @SuppressWarnings("deprecation")
    public static Window windowOf(Scene s) {
        if (s == null) {
            return null;
        }

        for (Iterator it = Window.impl_getWindows(); it.hasNext();) {
            Window w = it.next();
            if (s == w.getScene()) {
                return w;
            }
        }

        return null;
    }
}