91 lines
2.9 KiB
Java
91 lines
2.9 KiB
Java
/*
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* Copyright (c) 2001, 2024, 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 4137282
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* @summary Tests that scrollbars appear automatically when the enclosed
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* component is enlarged
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* @library /java/awt/regtesthelpers
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* @build PassFailJFrame
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* @run main/manual bug4137282
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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.Container;
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import java.awt.Dimension;
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import javax.swing.JButton;
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import javax.swing.JFrame;
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import javax.swing.JPanel;
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import javax.swing.JScrollPane;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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public class bug4137282 {
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private static final String INSTRUCTIONS = """
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Press the "resize" button. Two scrollbars should appear.
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Press Pass if they appear and Fail otherwise.""";
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static volatile JPanel pane;
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public static void main(String[] args) throws Exception {
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PassFailJFrame.builder()
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.title("JViewport Instructions")
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.instructions(INSTRUCTIONS)
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.rows(5)
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.columns(30)
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.testUI(bug4137282::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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pane = new JPanel();
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pane.setBackground(Color.blue);
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setPaneSize(100, 100);
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JFrame frame = new JFrame("bug4137282");
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JScrollPane sp = new JScrollPane(pane);
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JButton b = new JButton("resize");
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b.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent ev) {
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setPaneSize(300, 300);
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}
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});
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frame.add(b, BorderLayout.NORTH);
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frame.add(sp, BorderLayout.CENTER);
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frame.pack();
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return frame;
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}
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static void setPaneSize(int w, int h) {
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pane.setPreferredSize(new Dimension(w, h));
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pane.setSize(w, h);
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}
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}
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