8310072: JComboBox/DisabledComboBoxFontTestAuto: Enabled and disabled ComboBox...

8310072: JComboBox/DisabledComboBoxFontTestAuto: Enabled and disabled ComboBox does not match in these LAFs: GTK+

Backport-of: eb60822a45ecd076484e707b2dd1049ed9d8079b

test/jdk/javax/swing/JComboBox/DisabledComboBoxFontTestAuto.java

 /*
- * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2023, 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
@@ -21,13 +21,6 @@
  * questions.
  */
 
-/*
- * @test
- * @bug 7093691
- * @summary Tests if JComboBox has correct font color when disabled/enabled
- * @run main/othervm -Dsun.java2d.uiScale=1 DisabledComboBoxFontTestAuto
- */
-
 import java.awt.Color;
 import java.awt.Graphics2D;
 import java.awt.image.BufferedImage;
@@ -44,20 +37,29 @@ import javax.swing.UnsupportedLookAndFeelException;
 
 import static java.awt.image.BufferedImage.TYPE_INT_ARGB;
 
+/*
+ * @test
+ * @bug 7093691 8310072
+ * @summary Tests if JComboBox has correct font color when disabled/enabled
+ * @key headful
+ * @run main/othervm -Dsun.java2d.uiScale=1 DisabledComboBoxFontTestAuto
+ */
+
 public class DisabledComboBoxFontTestAuto {
     private static JComboBox combo, combo2;
     private static BufferedImage enabledImage, disabledImage, enabledImage2, disabledImage2;
-    private static Path testDir;
     private static String lafName;
     private static StringBuffer failingLafs;
     private static int COMBO_HEIGHT, COMBO_WIDTH, COMBO2_HEIGHT, COMBO2_WIDTH;
 
     private static void createCombo() {
         combo = new JComboBox();
-        combo.addItem("Simple JComboBox");
+        combo.addItem("\u2588".repeat(5));
+        combo.setFont(combo.getFont().deriveFont(50.0f));
         combo.setRenderer(new DefaultListCellRenderer());
         combo2 = new JComboBox();
-        combo2.addItem("Simple JComboBox");
+        combo2.addItem("\u2588".repeat(5));
+        combo2.setFont(combo2.getFont().deriveFont(50.0f));
         COMBO_WIDTH = (int) combo.getPreferredSize().getWidth();
         COMBO_HEIGHT = (int) combo.getPreferredSize().getHeight();
         COMBO2_WIDTH = (int) combo2.getPreferredSize().getWidth();
@@ -90,53 +92,38 @@ public class DisabledComboBoxFontTestAuto {
     }
 
     private static void testMethod() throws IOException {
-        ImageIO.write(enabledImage, "png", new File(testDir
-                + "/" + lafName + "Enabled.png"));
-        ImageIO.write(disabledImage, "png", new File(testDir
-                + "/" + lafName + "Disabled.png"));
-        ImageIO.write(enabledImage2, "png", new File(testDir
-                + "/" + lafName + "EnabledDLCR.png"));
-        ImageIO.write(disabledImage2, "png", new File(testDir
-                + "/" + lafName + "DisabledDLCR.png"));
-
-        boolean isIdentical = true;
         Color eColor1, eColor2, dColor1, dColor2;
+        Path testDir = Path.of(System.getProperty("test.classes", "."));
 
         // Use center line to compare RGB values
-        int y = 10;
+        int y = enabledImage.getHeight() / 2;
         for (int x = (enabledImage.getWidth() / 2) - 20;
              x < (enabledImage.getWidth() / 2) + 20; x++) {
-            // Nimbus has a pixel offset in coordinates since Nimbus is 2px
-            // smaller in width than other L&F's
-            if (lafName.equals("Nimbus")) {
-                eColor1 = new Color(enabledImage.getRGB(x + 1, y));
-                eColor2 = new Color(enabledImage2.getRGB(x, y));
-                dColor1 = new Color(disabledImage.getRGB(x + 1, y));
-                dColor2 = new Color(disabledImage2.getRGB(x, y));
-            } else {
             eColor1 = new Color(enabledImage.getRGB(x, y));
             eColor2 = new Color(enabledImage2.getRGB(x, y));
             dColor1 = new Color(disabledImage.getRGB(x, y));
             dColor2 = new Color(disabledImage2.getRGB(x, y));
-            }
-            if ((!isColorMatching(eColor1, eColor2)) || (!isColorMatching(dColor1, dColor2))) {
-                isIdentical = false;
-                break;
-            }
-        }
 
-        if (isIdentical) {
-            System.out.println("PASSED");
-        } else {
+            if ((!isColorMatching(eColor1, eColor2)) || (!isColorMatching(dColor1, dColor2))) {
                 failingLafs.append(lafName + ", ");
+                ImageIO.write(enabledImage, "png", new File(testDir
+                        + "/" + lafName + "Enabled.png"));
+                ImageIO.write(disabledImage, "png", new File(testDir
+                        + "/" + lafName + "Disabled.png"));
+                ImageIO.write(enabledImage2, "png", new File(testDir
+                        + "/" + lafName + "EnabledDLCR.png"));
+                ImageIO.write(disabledImage2, "png", new File(testDir
+                        + "/" + lafName + "DisabledDLCR.png"));
+                return;
             }
         }
+        System.out.println("Test Passed: " + lafName);
+    }
 
     private static boolean isColorMatching(Color c1, Color c2) {
         if ((c1.getRed() != c2.getRed())
             || (c1.getBlue() != c2.getBlue())
             || (c1.getGreen() != c2.getGreen())) {
-
             System.out.println(lafName + " Enabled RGB failure: "
                     + c1.getRed() + ", "
                     + c1.getBlue() + ", "
@@ -163,7 +150,6 @@ public class DisabledComboBoxFontTestAuto {
     public static void main(String[] args) throws Exception {
         lafName = "null";
         failingLafs = new StringBuffer();
-        testDir = Path.of(System.getProperty("test.classes", "."));
         for (UIManager.LookAndFeelInfo laf : UIManager.getInstalledLookAndFeels()) {
             // Change Motif LAF name to avoid using slash in saved image file path
             lafName = laf.getName().equals("CDE/Motif") ? "Motif" : laf.getName();