russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
100 lines
3.5 KiB
Java
100 lines
3.5 KiB
Java
/*
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* Copyright (c) 2003, 2025, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4008152
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* @summary ScrollPane position does not return correct values
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* @key headful
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* @run main ScrollPositionTest
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*/
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import java.awt.Adjustable;
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import java.awt.BorderLayout;
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import java.awt.Canvas;
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import java.awt.EventQueue;
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import java.awt.Frame;
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import java.awt.Point;
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import java.awt.Robot;
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import java.awt.ScrollPane;
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import java.awt.event.AdjustmentEvent;
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import java.awt.event.AdjustmentListener;
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public class ScrollPositionTest {
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static Frame frame;
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static int i = 0;
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static Point p;
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static ScrollPane sp;
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public static void main(String[] args) throws Exception {
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Robot robot = new Robot();
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try {
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EventQueue.invokeAndWait(() -> {
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frame = new Frame("Scroll Position Test");
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frame.setLayout(new BorderLayout());
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frame.setSize(200, 200);
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sp = new ScrollPane(ScrollPane.SCROLLBARS_AS_NEEDED);
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Canvas canvas = new Canvas();
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canvas.setSize(300, 300);
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sp.add(canvas);
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frame.add("Center", sp);
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frame.setLocationRelativeTo(null);
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frame.setVisible(true);
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});
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robot.waitForIdle();
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robot.delay(1000);
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EventQueue.invokeAndWait(() -> {
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Adjustable saH = sp.getHAdjustable();
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saH.addAdjustmentListener(new TestAdjustmentListener());
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});
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for (i = 0; i < 1000; i++) {
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EventQueue.invokeAndWait(() -> {
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p = new Point(i % 100, i % 100);
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sp.setScrollPosition(p);
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});
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robot.waitForIdle();
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robot.delay(10);
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EventQueue.invokeAndWait(() -> {
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if (!sp.getScrollPosition().equals(p)) {
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throw new RuntimeException("Test failed. " + i + " : " +
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"Expected " + p + ", but Returned: " + sp.getScrollPosition());
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}
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});
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}
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System.out.println("Test Passed.");
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} finally {
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EventQueue.invokeAndWait(() -> {
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if (frame != null) {
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frame.dispose();
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}
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});
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}
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}
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private static class TestAdjustmentListener implements AdjustmentListener {
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public void adjustmentValueChanged(AdjustmentEvent e) {
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System.out.println("AdjEvent caught:" + e);
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}
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}
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}
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