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/*
* Copyright (c) 2015, 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.
*/
import sun.awt.image.MultiResolutionToolkitImage;
import javax.swing.*;
import java.awt.*;
import java.awt.image.BufferedImage;
import static java.awt.event.InputEvent.BUTTON1_DOWN_MASK;
/**
* @test
* @key headful
* @bug 8076106
* @author Hendrik Schreiber
* @summary [macosx] Drag image of TransferHandler does not honor
* MultiResolutionImage
* @modules java.desktop/sun.awt.image
* @run main MultiResolutionDragImageTest TEST_DRAG
*/
public class MultiResolutionDragImageTest {
private static final Color COLOR_1X = Color.BLUE;
private static final Color COLOR_2X = Color.RED;
private static JFrame frame;
private static JTextField field;
private static Point p;
public static void main(String[] args) throws Exception {
final String test = args[0];
switch (test) {
case "TEST_DRAG":
testDrag();
break;
default:
throw new RuntimeException("Unknown test: " + test);
}
}
private static void testDrag() throws Exception {
SwingUtilities.invokeAndWait(() -> {
frame = new JFrame();
field = new JTextField("Drag Me");
setupFrame(frame, field);
frame.setVisible(true);
});
final Robot robot = new Robot();
robot.setAutoDelay(500);
robot.setAutoWaitForIdle(true);
robot.waitForIdle();
// get mouse into position
SwingUtilities.invokeAndWait(() -> {
p = new Point(field.getWidth() / 2, field.getHeight() / 2);
SwingUtilities.convertPointToScreen(p, field);
});
robot.mouseMove(p.x, p.y);
// simulate dragging
robot.mousePress(BUTTON1_DOWN_MASK);
p.translate(10, 10);
robot.mouseMove(p.x, p.y);
p.translate(5, 5);
final Color color = robot.getPixelColor(p.x, p.y);
robot.mouseRelease(BUTTON1_DOWN_MASK);
SwingUtilities.invokeAndWait(frame::dispose);
final float scaleFactor = getScaleFactor();
final Color testColor = (1 < scaleFactor) ? COLOR_2X : COLOR_1X;
if (!similar(testColor, color)) {
throw new RuntimeException(
"TEST FAILED: Image with wrong resolution is used for drag image!");
}
System.out.println("TEST PASSED!");
}
private static void setupFrame(final JFrame frame, final JTextField field) {
frame.setBounds(0, 0, 50, 50);
frame.setLayout(new BorderLayout());
field.setDragEnabled(true);
final TransferHandler transferHandler = field.getTransferHandler();
transferHandler.setDragImage(createMultiResolutionImage());
frame.getContentPane().add(field, BorderLayout.CENTER);
}
private static boolean similar(Color c1, Color c2){
return similar(c1.getRed(), c2.getRed())
&& similar(c1.getGreen(), c2.getGreen())
&& similar(c1.getBlue(), c2.getBlue());
}
private static boolean similar(int n, int m){
return Math.abs(n - m) <= 50;
}
static float getScaleFactor() {
return (float) GraphicsEnvironment.
getLocalGraphicsEnvironment().
getDefaultScreenDevice().getDefaultConfiguration().
getDefaultTransform().getScaleX();
}
private static Image createMultiResolutionImage() {
return new MultiResolutionToolkitImage(
createImage(50, COLOR_1X),
createImage(100, COLOR_2X)
);
}
private static Image createImage(final int length, final Color color) {
final BufferedImage image = new BufferedImage(length, length,
BufferedImage.TYPE_INT_ARGB_PRE);
final Graphics graphics = image.getGraphics();
graphics.setColor(color);
graphics.fillRect(0, 0, length, length);
graphics.dispose();
return image;
}
}
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