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Tejesh R
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8353957: Open source several AWT ScrollPane tests - Batch 1
Reviewed-by: psadhukhan
1 parent e2cb646 commit d1d7d25

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‎test/jdk/ProblemList.txt

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@@ -443,6 +443,7 @@ java/awt/Focus/TranserFocusToWindow/TranserFocusToWindow.java 6848810 macosx-all
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java/awt/FileDialog/ModalFocus/FileDialogModalFocusTest.java 8194751 linux-all
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java/awt/image/VolatileImage/BitmaskVolatileImage.java 8133102 linux-all
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java/awt/SplashScreen/MultiResolutionSplash/unix/UnixMultiResolutionSplashTest.java 8203004 linux-all
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java/awt/ScrollPane/ScrollPositionTest.java 8040070 linux-all
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java/awt/ScrollPane/ScrollPaneScrollType/ScrollPaneEventType.java 8296516 macosx-all
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java/awt/Robot/AcceptExtraMouseButtons/AcceptExtraMouseButtons.java 7107528 linux-all,macosx-all
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java/awt/Mouse/MouseDragEvent/MouseDraggedTest.java 8080676 linux-all

‎test/jdk/java/awt/ScrollPane/ScrollPaneFlicker.java

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/*
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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 4073822
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* @summary ScrollPane repaints entire window when scrolling fast
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* @library /java/awt/regtesthelpers
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* @build PassFailJFrame
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* @run main/manual ScrollPaneFlicker
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*/
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import java.awt.Button;
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import java.awt.Canvas;
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import java.awt.Checkbox;
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import java.awt.Choice;
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import java.awt.Color;
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import java.awt.Component;
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import java.awt.Dimension;
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import java.awt.Font;
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import java.awt.Frame;
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import java.awt.Graphics;
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import java.awt.Label;
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import java.awt.Menu;
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import java.awt.MenuBar;
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import java.awt.MenuItem;
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import java.awt.Panel;
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import java.awt.Rectangle;
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import java.awt.ScrollPane;
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import java.awt.Scrollbar;
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import java.awt.TextArea;
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import java.awt.TextField;
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import javax.swing.JButton;
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import javax.swing.JCheckBox;
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import javax.swing.JComboBox;
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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.JScrollBar;
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import javax.swing.JTextArea;
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import javax.swing.JTextField;
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public class ScrollPaneFlicker {
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public static void main(String[] args) throws Exception {
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String INSTRUCTIONS = """
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When scrolling a ScrollPane fast(i.e. holding the down/up arrow
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down for a while), the ScrollPane would inexplicably refresh
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the entire window.
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1. Select a type of ScrollPane content from the content menu.
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2. Scroll the content using the up/down/left/right arrows on
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the scroll bar. Try scrolling the entire content area using
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the scroll arrows-- from top to bottom and left to right.
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3. Verify that the entire pane does not refresh when scrolling
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- only the newly exposed areas should be repainting.
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4. Repeat for all content types.
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""";
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PassFailJFrame.builder()
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.title("Test Instructions")
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.instructions(INSTRUCTIONS)
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.columns(35)
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.testUI(ScrollPaneFlicker::initialize)
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.build()
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.awaitAndCheck();
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}
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static Frame initialize() {
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return new FlickerFrame();
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}
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}
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class FlickerFrame extends Frame {
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ScrollPane pane;
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public FlickerFrame() {
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super("ScrollPane Flicker Test");
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TextPanel textPanel = new TextPanel();
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GradientPanel gradientPanel = new GradientPanel();
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ComponentPanel componentPanel = new ComponentPanel();
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SwingPanel swingPanel = new SwingPanel();
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MenuBar menubar = new MenuBar();
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Menu testMenu = new Menu("Test Options");
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pane = new ScrollPane();
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pane.getHAdjustable().setUnitIncrement(8);
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pane.getVAdjustable().setUnitIncrement(16);
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pane.add(textPanel);
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add(pane);
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testMenu.add(makeContentItem("Text Lines", textPanel));
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testMenu.add(makeContentItem("Gradient Fill", gradientPanel));
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testMenu.add(makeContentItem("AWT Components", componentPanel));
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testMenu.add(makeContentItem("Swing Components", swingPanel));
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menubar.add(testMenu);
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setMenuBar(menubar);
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setSize(400, 300);
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}
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public MenuItem makeContentItem(String title, final Component content) {
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MenuItem menuItem = new MenuItem(title);
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menuItem.addActionListener(
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ev -> {
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pane.add(content);
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pane.validate();
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}
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);
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return menuItem;
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}
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}
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class GradientPanel extends Canvas {
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public void paint(Graphics g) {
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// just paint something that'll take a while
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int x, y;
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int width = getSize().width;
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int height = getSize().height;
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int step = 8;
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for (x = 0; x < width; x += step) {
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for (y = 0; y < height; y += step) {
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int red = (255 * y) / height;
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int green = (255 * x * y) / (width * height);
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int blue = (255 * x) / width;
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Rectangle bounds = g.getClipBounds();
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Rectangle fbounds = new Rectangle(x, y, x + step, y + step);
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if (bounds.intersects(fbounds)) {
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Color color = new Color(red, green, blue);
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g.setColor(color);
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g.fillRect(x, y, x + step, y + step);
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}
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}
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}
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}
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public Dimension getPreferredSize() {
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return new Dimension(200, 1000);
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}
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}
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class TextPanel extends Canvas {
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public void paint(Graphics g) {
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Font font = new Font("SanSerif", Font.ITALIC, 12);
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g.setFont(font);
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// just paint something that'll take a while
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int x, y;
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int width = getWidth();
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int height = getHeight();
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int step = 16;
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for (x = y = 0; y < height; y += step) {
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Rectangle bounds = g.getClipBounds();
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Rectangle tbounds = new Rectangle(x, y - 16, x + width, y);
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if (bounds.intersects(tbounds)) {
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g.drawString(y + " : The quick brown fox jumps over the lazy dog. " +
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"The rain in Spain falls mainly on the plain.", x, y);
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}
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}
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}
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public Dimension getPreferredSize() {
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return new Dimension(640, 1000);
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}
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}
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class ComponentPanel extends Panel {
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ComponentPanel() {
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add(new Label("Label"));
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add(new Button("Button"));
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add(new Checkbox("Checkbox"));
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Choice c = new Choice();
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c.add("choice");
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java.awt.List l = new java.awt.List();
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l.add("list");
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add(new Scrollbar());
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add(new TextField("TextField"));
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add(new TextArea("TextArea"));
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add(new Panel());
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add(new Canvas());
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}
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}
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class SwingPanel extends JPanel {
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SwingPanel() {
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add(new JLabel("JLabel"));
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add(new JButton("JButton"));
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add(new JCheckBox("JCheckBox"));
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JComboBox c = new JComboBox();
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JList l = new JList();
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add(new JScrollBar());
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add(new JTextField("This is a JTextField with some text in it to make it longer."));
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add(new JTextArea("This is a JTextArea with some text in it to make it longer."));
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}
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}

‎test/jdk/java/awt/ScrollPane/ScrollPanePaint.java

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/*
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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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* Licensed Materials - Property of IBM
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*
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* (C) Copyright IBM Corporation 1998 All Rights Reserved.
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*
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* US Government Users Restricted Rights - Use, duplication or disclosure
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* restricted by GSA ADP Schedule Contract with IBM Corp.
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*/
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/*
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* @test
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* @bug 4160721
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* @summary AWT ScrollPane painting problem
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* @library /java/awt/regtesthelpers
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* @build PassFailJFrame
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* @run main/manual ScrollPanePaint
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*/
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import java.awt.BorderLayout;
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import java.awt.Button;
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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 java.awt.Frame;
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import java.awt.GridLayout;
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import java.awt.Panel;
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import java.awt.ScrollPane;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import java.util.List;
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public class ScrollPanePaint {
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public static void main(String[] args) throws Exception {
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String INSTRUCTIONS = """
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1. Press the button marked "Toggle" a few times.
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2. The contents of the frame should alternate between
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a red panel and a scroll pane containing a green panel.
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If this does not happen (specifically, if the scroll
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pane does not consistently contain a green panel),
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then the test has FAILED.
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""";
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ScrollPaintTest scrollPaintTest = new ScrollPaintTest();
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PassFailJFrame.builder()
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.title("Test Instructions")
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.instructions(INSTRUCTIONS)
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.columns(35)
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.testUI(scrollPaintTest::initialize)
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.positionTestUI(WindowLayouts::rightOneColumn)
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.build()
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.awaitAndCheck();
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}
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private static class ScrollPaintTest implements ActionListener {
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static Frame f;
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static boolean showScroll;
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public List<Frame> initialize() {
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Frame frame = new Frame("Scrollpane paint test");
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frame.setLayout(new BorderLayout());
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f = new Frame("Scrollpane paint test");
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f.setLayout(new GridLayout(0, 1));
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Button b = new Button("Toggle");
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b.addActionListener(this);
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frame.add(b, BorderLayout.CENTER);
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frame.pack();
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showScroll = false;
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actionPerformed(null);
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return List.of(frame, f);
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}
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public void actionPerformed(ActionEvent e) {
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Container c;
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if (!showScroll) {
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c = (Container) new TestPanel(new Dimension(100, 100));
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c.setBackground(Color.red);
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} else {
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c = new ScrollPane(ScrollPane.SCROLLBARS_ALWAYS);
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Panel p = new TestPanel(new Dimension(20, 20));
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p.setBackground(Color.green);
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c.add(p);
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}
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f.removeAll();
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f.add("Center", c);
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f.pack();
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showScroll = !showScroll;
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}
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}
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private static class TestPanel extends Panel {
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Dimension dim;
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TestPanel(Dimension d) {
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dim = d;
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}
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public Dimension getMinimumSize() {
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return getPreferredSize();
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}
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public Dimension getPreferredSize() {
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return dim;
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}
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}
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}

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