/*
 * 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
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package test;

import javafx.animation.TranslateTransition;
import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.effect.DropShadow;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
import javafx.util.Duration;

public class VBoxDirty extends Application {

    private static VBox createRow(final VBox list) {
        final VBox item = new VBox();
        final Label text = new Label("Click any of the rows");
        item.getChildren().add(text);

        // these styles make it nice, they are not needed for the bug to appear
        item.setStyle("-fx-background-color: gray; -fx-padding: 10;");

        // effect is needed, without the shadow it works fine
        item.setEffect(new DropShadow());

        item.setOnMousePressed(new EventHandler<MouseEvent>() {
            @Override public void handle(MouseEvent event) {

                clear(list);

                // this animation is needed, without it it works fine
                TranslateTransition tt = new TranslateTransition(Duration.millis(2000), text);
                tt.setFromX(0);
                tt.setToX(10);
                tt.play();

                shiftAllBelow(list, item);
            }

        });

        return item;
    }

    private static void shiftAllBelow(VBox list, VBox row) {
        boolean found = false;
        for (Node child : list.getChildren()) {
            if (found) {
                child.setTranslateY(0);
                TranslateTransition tt = new TranslateTransition(Duration.millis(2000), child);
                tt.setToY(50);
                tt.play();
            }
            if (child == row) {
                found = true;
            }
        }
    }

    private static void clear(VBox list) {
        for (Node i : list.getChildren()) {
            i.setTranslateY(0);
        }
    }

    @Override public void start(Stage stage) {

        VBox root = new VBox();
        Scene scene = new Scene(root, 600, 600);

        // this is needed otherwise the rows will be shifted out of the root
        // VBox which makes the whole thing dirty
        root.setPadding(new Insets(60, 60, 60, 60));

        for (int i = 0; i < 10; i++) {
            final VBox row = createRow(root);
            root.getChildren().add(row);
        }

        stage.setScene(scene);
        stage.show();
    }

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