74 lines
2.5 KiB
Java
74 lines
2.5 KiB
Java
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/*
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* Copyright (c) 2003, 2023, 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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/* @test
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* @bug 4546474
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* @summary JScrollPane's always-visible scrollbars not updated when
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* viewport is replaced
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* @run main bug4546474
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*/
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import java.awt.Dimension;
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import java.awt.Robot;
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import javax.swing.JPanel;
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import javax.swing.JScrollBar;
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import javax.swing.JScrollPane;
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import javax.swing.SwingUtilities;
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public class bug4546474 {
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static JScrollPane scrollpane;
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static JScrollBar sbar;
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static volatile boolean viewChanged;
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public static void main(String[] args) throws Exception {
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SwingUtilities.invokeAndWait(() -> {
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JPanel panel = new JPanel();
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panel.setPreferredSize(new Dimension(500, 500));
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scrollpane = new JScrollPane(panel,
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JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
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JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
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sbar = scrollpane.getVerticalScrollBar();
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});
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Robot robot = new Robot();
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robot.delay(500);
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SwingUtilities.invokeAndWait(() -> {
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sbar.addAdjustmentListener(e -> viewChanged = true);
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scrollpane.setViewportView(null);
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});
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robot.delay(500);
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if (!viewChanged) {
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viewChanged = true;
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}
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robot.delay(500);
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SwingUtilities.invokeAndWait(() -> {
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if (sbar.getVisibleAmount() > 0) {
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throw new RuntimeException("Vertical scrollbar is not " +
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"updated when viewport is replaced");
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}
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});
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}
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}
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