/*

 * Copyright (c) 2015, 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.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

import java.awt.*;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.IOException;

import javax.imageio.ImageIO;

import javax.swing.*;

import javax.swing.tree.DefaultMutableTreeNode;

import javax.swing.tree.DefaultTreeModel;

/*

 * @test

 * @bug 8072676

 * @summary Checks if the tree painter doesn't expand existing clip

 * @author Anton Nashatyrev

 */

public class TreeClipTest {

    static boolean passed = true;

    static boolean checkImage(BufferedImage img, int clipY) {

        for (int y = clipY; y < img.getHeight(); y++) {

            for (int x = 0; x < img.getWidth(); x++) {

                if ((img.getRGB(x,y) & 0xFFFFFF) != 0xFFFFFF) {

                    return false;

                }

            }

        }

        return true;

    }

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

        SwingUtilities.invokeAndWait(new Runnable() {

            @Override

            public void run() {

                DefaultMutableTreeNode      root = new DefaultMutableTreeNode("JTree");

                DefaultMutableTreeNode      parent;

                parent = new DefaultMutableTreeNode("colors");

                root.add(parent);

                parent.add(new DefaultMutableTreeNode("blue"));

                DefaultTreeModel model = new DefaultTreeModel(root);

                JTree tree = new JTree(model);

                BufferedImage img = new BufferedImage(50, 50, BufferedImage.TYPE_INT_ARGB);

                for (int clipY = 1; clipY < 50; clipY++) {

                    Graphics2D ig = img.createGraphics();

                    ig.setColor(Color.WHITE);

                    ig.fillRect(0,0,1000, 1000);

                    tree.setSize(200,200);

                    ig.setClip(0,0,1000,clipY);

                    tree.paint(ig);

                    ig.dispose();

                    if (!checkImage(img, clipY)) {

                        System.err.println("Failed with clipY=" + clipY);

                        passed = false;

                        try {

                            ImageIO.write(img, "PNG", new File("failedResult.png"));

                        } catch (IOException e) {

                            e.printStackTrace();

                        }

                        return;

                    }

                }

            }

        });

        if (!passed) {

            throw new RuntimeException("Test failed.");

        } else {

            System.out.println("Passed.");

        }

    }

}