8039345: Strange behaviour of per-pixel translucency on linux
Reviewed-by: prr, azvegint
Contributed-by: prasanta.sadhukhan@oracle.com
--- a/jdk/src/java.desktop/unix/classes/sun/java2d/xr/XRSurfaceData.java Mon Mar 02 16:34:44 2015 +0300
+++ b/jdk/src/java.desktop/unix/classes/sun/java2d/xr/XRSurfaceData.java Tue Mar 03 17:50:01 2015 +0300
@@ -548,8 +548,18 @@
peer.getColorModel().getPixelSize(), Transparency.OPAQUE);
if (isXRDrawableValid()) {
- initXRender(XRUtils.
- getPictureFormatForTransparency(Transparency.OPAQUE));
+ // If we have a 32 bit color model for the window it needs
+ // alpha to support translucency of the window so we need
+ // to get the ARGB32 XRender picture format else for
+ // 24 bit colormodel we need RGB24 or OPAQUE pictureformat.
+ if (peer.getColorModel().getPixelSize() == 32) {
+ initXRender(XRUtils.
+ getPictureFormatForTransparency(Transparency.TRANSLUCENT));
+ }
+ else {
+ initXRender(XRUtils.
+ getPictureFormatForTransparency(Transparency.OPAQUE));
+ }
makePipes();
}
}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sun/java2d/XRSurfaceData/ComponentResizeTest.java Tue Mar 03 17:50:01 2015 +0300
@@ -0,0 +1,100 @@
+/*
+ * 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.
+ */
+
+import java.awt.Color;
+import java.awt.FlowLayout;
+import javax.swing.JButton;
+import javax.swing.JCheckBox;
+import javax.swing.JFrame;
+import javax.swing.SwingUtilities;
+import java.awt.Component;
+import javax.swing.JOptionPane;
+
+/**
+ * @test
+ * @bug 8039345
+ * @author Prasanta Sadhukhan
+ * @run main/manual ComponentResizeTest
+ * @summary Resizes JFrame so that component drawn inside it gets repainted
+ * without leaving any trails
+ */
+public class ComponentResizeTest {
+
+ private static JFrame demoFrame;
+
+ public static void testresize() throws Exception {
+ Thread.sleep(5000);
+ for (int i = 0; i < 20; i++) {
+ SwingUtilities.invokeLater(() -> {
+ demoFrame.setSize(demoFrame.getWidth() + 5, demoFrame.getHeight() + 5);
+ });
+ Thread.sleep(1000);
+ }
+ }
+
+ public static void main(String[] args) throws Exception {
+ SwingUtilities.invokeAndWait(() -> {
+ JOptionPane.showMessageDialog(
+ (Component) null,
+ "The test creates a transparent JFrame and resizes the JFrame. Please verify JFrame is transparent and components (like JButton, checkbox) move without leaving any trails",
+ "information", JOptionPane.INFORMATION_MESSAGE);
+ createAndShowGUI();
+ });
+
+ try {
+ testresize();
+ } finally {
+ SwingUtilities.invokeLater(() -> {
+ demoFrame.dispose();
+ });
+ }
+
+ SwingUtilities.invokeAndWait(() -> {
+ int confirm = JOptionPane.showConfirmDialog(
+ (Component) null,
+ "Did the component resize work without leaving any trails?",
+ "alert", JOptionPane.YES_NO_OPTION);
+ if (confirm == JOptionPane.YES_OPTION) {
+ System.out.println("Test passed");
+ } else {
+ System.out.println("Test failed");
+ throw new RuntimeException("Component resize leaves trail");
+ }
+ });
+ }
+
+ private static void createAndShowGUI() {
+ demoFrame = new JFrame();
+ demoFrame.setSize(300, 300);
+ demoFrame.setLayout(new FlowLayout());
+ demoFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+ demoFrame.setUndecorated(true);
+ demoFrame.setBackground(new Color(0f, 0, 0, 0.1f));
+ JCheckBox b = new JCheckBox("Whatever");
+ demoFrame.paintAll(null);
+ b.setOpaque(true);
+ demoFrame.add(b);
+ demoFrame.add(new JButton());
+ demoFrame.setVisible(true);
+ }
+}