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.
85 lines
3 KiB
Java
85 lines
3 KiB
Java
/*
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* Copyright (c) 2001, 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 4183379
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* @summary JList has wrong scrolling behavior when you click in the "troth"
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* of a scrollbar, in a scrollpane.
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* @library /java/awt/regtesthelpers
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* @build PassFailJFrame
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* @run main/manual bug4183379
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*/
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import javax.swing.JFrame;
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import javax.swing.JList;
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import javax.swing.JScrollPane;
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public class bug4183379 {
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public static void main(String[] args) throws Exception {
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String INSTRUCTIONS = """
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Click mouse several times in the "troth" of a scrollbars
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in a scrollpane containing a list.
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The list should scrolls by one block, i.e.:
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For vertical scrolling:
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- if scrolling down the last visible element should become the
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first completely visible element
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- if scrolling up, the first visible element should become the
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last completely visible element
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For horizontal scrolling:
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- for scrolling left if the beginning of the first column is not
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visible it should become visible, otherwise the beginning of the
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previous column should become visible;
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- for scrolling right the next colunm after first visible column
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should become visible.
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""";
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PassFailJFrame.builder()
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.title("bug4183379 Instructions")
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.instructions(INSTRUCTIONS)
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.columns(35)
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.testUI(bug4183379::initialize)
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.build()
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.awaitAndCheck();
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}
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private static JFrame initialize() {
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JFrame fr = new JFrame("bug4183379");
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String[] data = new String[90];
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for (int i=0; i<90; i++) {
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data[i] = "item number "+i;
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}
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JList lst = new JList(data);
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lst.setLayoutOrientation(JList.VERTICAL_WRAP);
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lst.setVisibleRowCount(20);
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JScrollPane jsp = new JScrollPane(lst);
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fr.add(jsp);
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fr.setSize(210,200);
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fr.setAlwaysOnTop(true);
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return fr;
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}
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}
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