1 /*
2 * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 import sun.awt.image.MultiResolutionToolkitImage;
25 import sun.java2d.SunGraphics2D;
26
27 import javax.swing.*;
28 import java.awt.*;
29 import java.awt.image.BufferedImage;
30
31 import static java.awt.event.InputEvent.BUTTON1_DOWN_MASK;
32
33 /**
34 * @test
35 * @key headful
36 * @bug 8076106
37 * @author Hendrik Schreiber
38 * @summary [macosx] Drag image of TransferHandler does not honor
39 * MultiResolutionImage
40 * @run main MultiResolutionDragImageTest TEST_DRAG
41 */
42 public class MultiResolutionDragImageTest {
43
44 private static final Color COLOR_1X = Color.BLUE;
45 private static final Color COLOR_2X = Color.RED;
46 private static JFrame frame;
47 private static JTextField field;
48 private static Point p;
49
50 public static void main(String[] args) throws Exception {
51
52 final String test = args[0];
53
54 switch (test) {
55 case "TEST_DRAG":
56 testDrag();
57 break;
58 default:
59 throw new RuntimeException("Unknown test: " + test);
60 }
61 }
62
63 private static void testDrag() throws Exception {
64
65
66 SwingUtilities.invokeAndWait(() -> {
67
68 frame = new JFrame();
69 field = new JTextField("Drag Me");
70 setupFrame(frame, field);
71 frame.setVisible(true);
72 });
73
74 final Robot robot = new Robot();
75 robot.setAutoDelay(500);
76 robot.setAutoWaitForIdle(true);
77 robot.waitForIdle();
78
79 // get mouse into position
80 SwingUtilities.invokeAndWait(() -> {
81
82 p = new Point(field.getWidth() / 2, field.getHeight() / 2);
83 SwingUtilities.convertPointToScreen(p, field);
84 });
85
86 robot.mouseMove(p.x, p.y);
87 // simulate dragging
88 robot.mousePress(BUTTON1_DOWN_MASK);
89 p.translate(10, 10);
90 robot.mouseMove(p.x, p.y);
91
92 p.translate(5, 5);
93 final Color color = robot.getPixelColor(p.x, p.y);
94 robot.mouseRelease(BUTTON1_DOWN_MASK);
95
96 SwingUtilities.invokeAndWait(frame::dispose);
97
98 final float scaleFactor = getScaleFactor();
99 final Color testColor = (1 < scaleFactor) ? COLOR_2X : COLOR_1X;
100
101 if (!similar(testColor, color)) {
102 throw new RuntimeException(
103 "TEST FAILED: Image with wrong resolution is used for drag image!");
104 }
105 System.out.println("TEST PASSED!");
106 }
107
108 private static void setupFrame(final JFrame frame, final JTextField field) {
109
110 frame.setBounds(0, 0, 50, 50);
111 frame.setLayout(new BorderLayout());
112 field.setDragEnabled(true);
113 final TransferHandler transferHandler = field.getTransferHandler();
114 transferHandler.setDragImage(createMultiResolutionImage());
115 frame.getContentPane().add(field, BorderLayout.CENTER);
116 }
117
118 private static boolean similar(Color c1, Color c2){
119 return similar(c1.getRed(), c2.getRed())
120 && similar(c1.getGreen(), c2.getGreen())
121 && similar(c1.getBlue(), c2.getBlue());
122 }
123
124 private static boolean similar(int n, int m){
125 return Math.abs(n - m) <= 80;
126 }
127
128 private static float getScaleFactor() {
129
130 final Dialog dialog = new Dialog((Window) null);
131 dialog.setSize(100, 100);
132 dialog.setModal(true);
133 final float[] scaleFactors = new float[1];
134 Panel panel = new Panel() {
135
136 @Override
137 public void paint(Graphics g) {
138 float scaleFactor = 1;
139 if (g instanceof SunGraphics2D) {
140 scaleFactor = ((SunGraphics2D) g).surfaceData.getDefaultScale();
141 }
142 scaleFactors[0] = scaleFactor;
143 dialog.setVisible(false);
144 }
145 };
146
147 dialog.add(panel);
148 dialog.setVisible(true);
149 dialog.dispose();
150
151 return scaleFactors[0];
152 }
153
154 private static Image createMultiResolutionImage() {
155
156 return new MultiResolutionToolkitImage(
157 createImage(50, COLOR_1X),
158 createImage(100, COLOR_2X)
159 );
160
161 }
162
163 private static Image createImage(final int length, final Color color) {
164
165 final BufferedImage image = new BufferedImage(length, length,
166 BufferedImage.TYPE_INT_ARGB_PRE);
167 final Graphics graphics = image.getGraphics();
168 graphics.setColor(color);
169 graphics.fillRect(0, 0, length, length);
170 graphics.dispose();
171 return image;
172 }
173 }