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/*
* Copyright (c) 2008, 2017, 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
@key headful
@bug 6594131 8186617
@summary Tests the Window.get/setOpacity() methods
*/
import java.awt.AWTException;
import java.awt.Frame;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Robot;
public class WindowOpacity {
public static void main(String[] args) throws Exception {
GraphicsDevice gd =
GraphicsEnvironment.getLocalGraphicsEnvironment()
.getDefaultScreenDevice();
if (!gd.isWindowTranslucencySupported(
GraphicsDevice.WindowTranslucency.TRANSLUCENT)) {
System.out.println(
"Either the Toolkit or the native system does not support"
+ " controlling the window opacity level.");
return;
}
Frame f = new Frame("Opacity test");
try {
test(f);
} finally {
f.dispose();
}
}
private static void test(final Frame f) throws AWTException {
boolean passed;
f.setUndecorated(true);
float curOpacity = f.getOpacity();
if (curOpacity < 1.0f || curOpacity > 1.0f) {
throw new RuntimeException(
"getOpacity() reports the initial opacity level "
+ "other than 1.0: " + curOpacity);
}
passed = false;
try {
f.setOpacity(-0.5f);
} catch (IllegalArgumentException e) {
passed = true;
}
if (!passed) {
throw new RuntimeException(
"setOpacity() allows passing negative opacity level.");
}
passed = false;
try {
f.setOpacity(1.5f);
} catch (IllegalArgumentException e) {
passed = true;
}
if (!passed) {
throw new RuntimeException(
"setOpacity() allows passing opacity level greater than 1.0.");
}
f.setOpacity(0.5f);
curOpacity = f.getOpacity();
if (curOpacity < 0.5f || curOpacity > 0.5f) {
throw new RuntimeException(
"setOpacity() reports the opacity level that "
+ "differs from the value set with "
+ "setWindowOpacity: " + curOpacity);
}
f.setOpacity(0.75f);
curOpacity = f.getOpacity();
if (curOpacity < 0.75f || curOpacity > 0.75f) {
throw new RuntimeException(
"getOpacity() reports the opacity level that "
+ "differs from the value set with "
+ "setWindowOpacity the second time: "
+ curOpacity);
}
f.setBounds(100, 100, 300, 200);
f.setVisible(true);
Robot robot = new Robot();
robot.waitForIdle();
curOpacity = f.getOpacity();
if (curOpacity < 0.75f || curOpacity > 0.75f) {
throw new RuntimeException(
"getOpacity() reports the opacity level that "
+ "differs from the value set with "
+ "setWindowOpacity before showing the frame: "
+ curOpacity);
}
f.setOpacity(0.5f);
robot.waitForIdle();
curOpacity = f.getOpacity();
if (curOpacity < 0.5f || curOpacity > 0.5f) {
throw new RuntimeException(
"getOpacity() reports the opacity level that "
+ "differs from the value set with "
+ "setWindowOpacity after showing the frame: "
+ curOpacity);
}
}
}
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