8041642: Incorrect paint of JProgressBar in Nimbus LF

Reviewed-by: ant, alexsch

src/share/classes/javax/swing/plaf/nimbus/AbstractRegionPainter.java

@@ -625,6 +625,9 @@ public abstract class AbstractRegionPainter implements Painter<JComponent> {
         // check if we can scale to the requested size
         Dimension canvas = ctx.canvasSize;
         Insets insets = ctx.stretchingInsets;
+        if (insets.left + insets.right > w || insets.top + insets.bottom > h) {
+            return;
+        }
 
         if (w <= (canvas.width * ctx.maxHorizontalScaleFactor) && h <= (canvas.height * ctx.maxVerticalScaleFactor)) {
             // get image at canvas size

test/javax/swing/plaf/nimbus/8041642/bug8041642.java

+/*
+ * Copyright (c) 2015, 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 8041642
+   @summary Incorrect paint of JProgressBar in Nimbus LF
+   @author Semyon Sadetsky
+*/
+
+import javax.swing.*;
+import java.awt.*;
+
+public class bug8041642 {
+
+    private static JFrame frame;
+    private static Point point;
+    private static JProgressBar bar;
+
+    public static void main(String[] args) throws Exception {
+        for (UIManager.LookAndFeelInfo info : UIManager
+                .getInstalledLookAndFeels()) {
+            if ("Nimbus".equals(info.getName())) {
+                try {
+                    UIManager.setLookAndFeel(info.getClassName());
+                } catch (Exception ex) {
+                }
+                break;
+            }
+        }
+        try {
+            SwingUtilities.invokeAndWait(new Runnable() {
+                public void run() {
+                    frame = new JFrame();
+                    frame.setUndecorated(true);
+                    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+                    setup(frame);
+                }
+            });
+            SwingUtilities.invokeAndWait(new Runnable() {
+                @Override
+                public void run() {
+                    point = bar.getLocationOnScreen();
+                }
+            });
+            final Robot robot = new Robot();
+            Color color = robot.getPixelColor(point.x + 1, point.y + 7);
+            System.out.println(color);
+            if (color.getGreen() < 150 || color.getBlue() > 30 ||
+                    color.getRed() > 200) {
+                throw new RuntimeException("Bar padding color should be green");
+            }
+
+        } finally {
+            SwingUtilities.invokeAndWait(new Runnable() {
+                @Override
+                public void run() {
+                    //frame.dispose();
+                }
+            });
+        }
+
+        System.out.println("ok");
+    }
+
+    static void setup(JFrame frame) {
+        bar = new JProgressBar();
+        bar.setBackground(Color.WHITE);
+        bar.setValue(2);
+        frame.getContentPane().add(bar, BorderLayout.NORTH);
+        frame.getContentPane().setBackground(Color.GREEN);
+        frame.setSize(200, 150);
+        frame.setLocation(100, 100);
+        frame.setVisible(true);
+    }
+}