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.
114 lines
4.1 KiB
Java
114 lines
4.1 KiB
Java
/*
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* Copyright (c) 1999, 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 4128110
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* @summary Verify that JViewport.setViewportView() and JScrollPane.setViewport()
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* force a re-layout and a repaint.
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* @library /java/awt/regtesthelpers
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* @build PassFailJFrame
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* @run main/manual SetViewRepaint
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*/
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import java.awt.BorderLayout;
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import java.awt.Color;
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import java.awt.GridLayout;
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import java.awt.event.ActionListener;
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import javax.swing.JButton;
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import javax.swing.JFrame;
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import javax.swing.JLabel;
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import javax.swing.JList;
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import javax.swing.JPanel;
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import javax.swing.JScrollPane;
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import javax.swing.JViewport;
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public class SetViewRepaint {
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private static final String INSTRUCTIONS = """
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Verify the following two cases:
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1) Press "JViewport.setViewportView()" button and verify that
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the blue label is replaced by a scrolling list.
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2) Press "JScrollPane.setViewport()" button and verify that
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the red label is replaced by a scrolling list as well.
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In either case the display should update automatically after
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pressing the button.
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If the above is true, press PASS else press FAIL.
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""";
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public static void main(String[] args) throws Exception {
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PassFailJFrame.builder()
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.instructions(INSTRUCTIONS)
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.columns(30)
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.testUI(SetViewRepaint::createTestUI)
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.build()
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.awaitAndCheck();
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}
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private static JFrame createTestUI() {
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JFrame frame = new JFrame("SetViewRepaint");
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JPanel p1 = new JPanel(new BorderLayout());
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JPanel p2 = new JPanel(new BorderLayout());
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JLabel label1 = new ColorLabel(Color.BLUE, "Blue Label");
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final JList list1 = new JList(new String[]{"one", "two", "three", "four"});
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final JScrollPane sp1 = new JScrollPane(label1);
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ActionListener doSetViewportView = e -> sp1.setViewportView(list1);
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JButton b1 = new JButton("JViewport.setViewportView()");
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b1.addActionListener(doSetViewportView);
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p1.add(sp1, BorderLayout.CENTER);
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p1.add(b1, BorderLayout.SOUTH);
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JLabel label2 = new ColorLabel(Color.RED, "Red Label");
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final JList list2 = new JList(new String[]{"five", "six", "seven", "eight"});
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final JScrollPane sp2 = new JScrollPane(label2);
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ActionListener doSetViewport = e -> {
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JViewport vp = new JViewport();
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vp.setView(list2);
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sp2.setViewport(vp);
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};
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JButton b2 = new JButton("JScrollPane.setViewport()");
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b2.addActionListener(doSetViewport);
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p2.add(sp2, BorderLayout.CENTER);
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p2.add(b2, BorderLayout.SOUTH);
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frame.setLayout(new GridLayout(1, 2));
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frame.add(p1);
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frame.add(p2);
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frame.setResizable(false);
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frame.setSize(500, 120);
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return frame;
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}
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private static class ColorLabel extends JLabel {
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ColorLabel(Color color, String text) {
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super(text);
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setForeground(Color.WHITE);
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setBackground(color);
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setOpaque(true);
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setHorizontalAlignment(CENTER);
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}
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}
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}
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