/*

 * Copyright (c) 2014, 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.

 *

 * 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.

 *

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 */

/*

 * @test

 * @bug 8044371

 * @summary setOneTouchExpandable functionality of JSplitPane will reduce vertical Scrollbar

 * @author Anton Nashatyrev

 * @library ..

 */

import javax.swing.*;

import javax.swing.plaf.metal.MetalLookAndFeel;

import java.awt.*;

import java.awt.event.AdjustmentEvent;

import java.awt.event.AdjustmentListener;

public class bug8044371 implements AdjustmentListener {

    JSplitPane sptPane;

    int lastAdjust = 0;

    int initialAdjust = 0;

    public static void main(String[] args) throws Throwable {

        UIManager.setLookAndFeel(MetalLookAndFeel.class.getName());

        SwingTest.start(bug8044371.class);

    }

    public bug8044371(JFrame frame) {

        JPanel p = new JPanel();

        final JScrollPane jScrollPane = new JScrollPane(new JPanel()

        {{setPreferredSize(new Dimension(1500,1500));}},

                JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,

                JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);

        jScrollPane.getViewport().scrollRectToVisible(new Rectangle(1500, 1500, 0, 0));

        jScrollPane.getVerticalScrollBar().addAdjustmentListener(this);

        sptPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, jScrollPane, p);

        sptPane.setDividerLocation(90);

        sptPane.setOneTouchExpandable(true);

        frame.getContentPane().add(sptPane);

    }

    public void adjustmentValueChanged(AdjustmentEvent e) {

        System.out.println( "adjustmentValueChanged: "  + e.getValue());

        lastAdjust = e.getValue();

    }

    public void step1() {

        if (lastAdjust == 0) {

            throw new RuntimeException("Adjustment == 0");

        }

        initialAdjust =  lastAdjust;

        sptPane.setDividerLocation(0);

    }

    public void step2() {

        if (lastAdjust < initialAdjust) {

            throw new RuntimeException("Failed: Adjustment decreased: " + lastAdjust);

        }

        sptPane.setDividerLocation(90);

    }

    public void step3() {

        if (lastAdjust < initialAdjust) {

            throw new RuntimeException("Failed: Adjustment decreased: " + lastAdjust);

        }

    }

}