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.
99 lines
3.3 KiB
Java
99 lines
3.3 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 4244899
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* @summary Tests whether scrolling with blit has artifacts
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* @library /java/awt/regtesthelpers
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* @build PassFailJFrame
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* @run main/manual bug4244899
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*/
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import javax.swing.JFrame;
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import javax.swing.JScrollPane;
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import javax.swing.JTable;
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import javax.swing.table.AbstractTableModel;
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public class bug4244899 {
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static final String INSTRUCTIONS = """
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Widen the first column of the table, so that
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you get a horizontal scrollbar. Click in the
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scrollbar (not on the thumb, but in the track).
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If you notice some artifacts/flashing at
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the bottom of the frame, the test FAILS.
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Otherwise, the test PASSES.
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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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.title("bug4244899 Test Instructions")
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.instructions(INSTRUCTIONS)
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.columns(40)
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.testUI(bug4244899::createUI)
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.build()
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.awaitAndCheck();
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}
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static class TestModel extends AbstractTableModel {
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private final int rows = 20;
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private final int cols = 5;
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private Integer[][] data;
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public TestModel() {
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data = new Integer[rows][];
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int realCount = 0;
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for (int counter = 0; counter < rows; counter++) {
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data[counter] = new Integer[cols];
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for (int y = 0; y < cols; y++) {
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data[counter][y] = Integer.valueOf(realCount);
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realCount = (realCount + 1) % 23;
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}
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}
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}
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public int getRowCount() {
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return data.length;
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}
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public int getColumnCount() {
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return data[0].length;
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}
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public Object getValueAt(int row, int column) {
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return data[row][column];
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}
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}
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static JFrame createUI() {
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JFrame f = new JFrame("Scrolling Blit Artifact Test");
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JTable table = new JTable(new TestModel());
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JScrollPane sp = new JScrollPane(table);
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sp.getViewport().putClientProperty("EnableWindowBlit", Boolean.TRUE);
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table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
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f.add(sp);
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f.setSize(400, 400);
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return f;
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}
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}
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