8340625: Open source additional Component tests (part 3)

Reviewed-by: psadhukhan

Author: Alexander Zuev

test/jdk/java/awt/Component/PaintGlitchTest/PaintGlitchTest.java

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+/*
+ * Copyright (c) 1997, 2024, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 4045781
+ * @summary Exposed/damaged canvases don't always update correctly
+ * @library /java/awt/regtesthelpers
+ * @build PassFailJFrame
+ * @run main/manual PaintGlitchTest
+ */
+
+import java.awt.Button;
+import java.awt.Canvas;
+import java.awt.Checkbox;
+import java.awt.Choice;
+import java.awt.Color;
+import java.awt.Component;
+import java.awt.Dialog;
+import java.awt.Dimension;
+import java.awt.Font;
+import java.awt.Frame;
+import java.awt.Graphics;
+import java.awt.Label;
+import java.awt.Menu;
+import java.awt.MenuBar;
+import java.awt.MenuItem;
+import java.awt.Panel;
+import java.awt.Scrollbar;
+import java.awt.TextArea;
+import java.awt.TextField;
+import java.lang.reflect.InvocationTargetException;
+import javax.swing.JButton;
+import javax.swing.JCheckBox;
+import javax.swing.JComboBox;
+import javax.swing.JLabel;
+import javax.swing.JList;
+import javax.swing.JPanel;
+import javax.swing.JScrollBar;
+import javax.swing.JTextArea;
+import javax.swing.JTextField;
+
+public class PaintGlitchTest extends Frame {
+    static final String INSTRUCTIONS = """
+               1. Click on the 'Painting Glitch Test' window  and select from
+                  its menu a content type (text, gradient, fill,
+                  AWT components, Swing components etc.).
+               2. Select 'Modal Dialog...' to create a dialog.
+               3. Drag the dialog over the content very fast
+                  for 10 seconds or so - make sure you
+                  keep dragging while the content is painting.
+               4. Verify that the area exposed by the drag (the damaged regions)
+                  always update properly no white areas or bits of the dialog
+                  should be left after the drag operation is
+                  completed (i.e. after you let go of the mouse).
+               5. Repeat for all other content types.
+               6. If for any content type the damaged dialog is not properly
+                  repainted press Fail. Otherwise press Pass.
+            """;
+
+    public PaintGlitchTest() {
+        super("Painting Glitch Test");
+
+        TextPanel textPanel = new TextPanel();
+        GradientPanel gradientPanel = new GradientPanel();
+        ComponentPanel componentPanel = new ComponentPanel();
+        SwingPanel swingPanel = new SwingPanel();
+
+        add(textPanel);
+
+        MenuBar menubar = new MenuBar();
+        Menu testMenu = new Menu("Test");
+        testMenu.add(makeContentItem("Text Lines", textPanel) );
+        testMenu.add(makeContentItem("Gradient Fill", gradientPanel) );
+        testMenu.add(makeContentItem("AWT Components", componentPanel) );
+        testMenu.add(makeContentItem("Swing Components", swingPanel) );
+        testMenu.addSeparator();
+        MenuItem dialogItem = new MenuItem("Modal Dialog...");
+        dialogItem.addActionListener(ev -> new ObscuringDialog(PaintGlitchTest.this).show());
+        testMenu.add(dialogItem);
+        testMenu.addSeparator();
+        menubar.add(testMenu);
+
+        setMenuBar(menubar);
+        setSize(400,300);
+    }
+
+    public static void main(String args[]) throws InterruptedException,
+            InvocationTargetException {
+        PassFailJFrame.builder()
+                .title("Repaint Glitch")
+                .testUI(PaintGlitchTest::new)
+                .instructions(INSTRUCTIONS)
+                .columns(40)
+                .logArea()
+                .build()
+                .awaitAndCheck();
+    }
+
+    public MenuItem makeContentItem(String title, final Component content) {
+        MenuItem menuItem = new MenuItem(title);
+        menuItem.addActionListener(
+                ev -> {
+                    remove(0);
+                    add(content);
+                    validate();
+                }
+        );
+
+        return menuItem;
+    }
+}
+
+class GradientPanel extends Canvas {
+    public void paint(Graphics g) {
+        long ms = System.currentTimeMillis();
+        // just paint something that'll take a while
+        int x, y;
+        int width = getSize().width;
+        int height = getSize().height;
+        int step = 8;
+
+        for (x = 0; x < width; x += step) {
+            for (y = 0; y < height; y += step) {
+                int red = (255 * y) / height;
+                int green = (255 * x * y) / (width * height);
+                int blue = (255 * x) / width;
+
+                Color   color = new Color(red, green, blue);
+                g.setColor(color);
+                g.fillRect(x, y, step, step);
+            }
+        }
+        long time = System.currentTimeMillis() - ms;
+        PassFailJFrame.log("GradientPanel paint took " + time + " ms");
+    }
+
+    public Dimension getPreferredSize() {
+        return new Dimension(200,1000);
+    }
+}
+
+class TextPanel extends Canvas {
+    public void paint(Graphics g) {
+        long ms = System.currentTimeMillis();
+        Font font = new Font("SanSerif", Font.ITALIC, 12);
+
+        g.setFont(font);
+        // just paint something that'll take a while
+        int x, y;
+        int height = getHeight();
+        int step = 16;
+
+        for (x = y = 0; y < height; y += step) {
+            g.drawString(y + " : The quick brown fox jumps over the lazy dog. " +
+                    "The rain in Spain falls mainly on the plain.", x, y);
+        }
+        long time = System.currentTimeMillis() - ms;
+        PassFailJFrame.log("TextPanel paint took " + time + " ms");
+    }
+
+    public Dimension getPreferredSize() {
+        return new Dimension(640,1000);
+    }
+}
+
+class ComponentPanel extends Panel {
+    ComponentPanel() {
+        add(new Label("Label"));
+        add(new Button("Button"));
+        add(new Checkbox("Checkbox"));
+        Choice c = new Choice();
+        c.add("choice");
+        java.awt.List l = new java.awt.List();
+        l.add("list");
+        add(new Scrollbar());
+        add(new TextField("TextField"));
+        add(new TextArea("TextArea"));
+        add(new Panel());
+        add(new Canvas());
+    }
+}
+
+class SwingPanel extends JPanel {
+    SwingPanel() {
+        add(new JLabel("JLabel"));
+        add(new JButton("JButton"));
+        add(new JCheckBox("JCheckBox"));
+        JComboBox c = new JComboBox();
+        JList l = new JList();
+        add(new JScrollBar());
+        add(new JTextField("This is a JTextField with some text in it to make it longer."));
+        add(new JTextArea("This is a JTextArea with some text in it to make it longer."));
+    }
+}
+
+class ObscuringDialog extends Dialog {
+    ObscuringDialog(Frame f) {
+        super(f, "Obscuring Dialog");
+        Button ok = new Button("OK, go away");
+        ok.addActionListener(ev -> dispose());
+        add(ok);
+        pack();
+    }
+}