1 /*
2 * Copyright (c) 2016, 2020, 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 java.awt.BorderLayout;
25 import java.awt.Component;
26 import java.awt.Dimension;
27 import java.awt.GraphicsDevice;
28 import java.awt.GraphicsEnvironment;
29 import java.awt.Point;
30 import java.awt.Rectangle;
31 import java.awt.Robot;
32 import java.awt.event.InputEvent;
33 import javax.swing.JFrame;
34 import javax.swing.JPanel;
35 import javax.swing.JTextArea;
36 import javax.swing.SwingUtilities;
37
38 /**
39 * @test
40 * @key headful
41 * @bug 8149849 8211999
42 * @summary [hidpi] DnD issues (cannot DnD from JFileChooser to JEditorPane or
43 * other text component) when scale > 1
44 * @run main/othervm DNDTextToScaledArea
45 * @run main/othervm -Dsun.java2d.uiScale=2 DNDTextToScaledArea
46 */
47 public class DNDTextToScaledArea {
48
49 private static final int SIZE = 300;
50 private static final String TEXT = "ABCDEFGH";
51 private static JFrame frame;
52 private static JTextArea srcTextArea;
53 private static JTextArea dstTextArea;
54 private static volatile Point srcPoint;
55 private static volatile Point dstPoint;
56 private static volatile boolean passed = false;
57
58 public static void main(String[] args) throws Exception {
59 var lge = GraphicsEnvironment.getLocalGraphicsEnvironment();
60 for (GraphicsDevice device : lge.getScreenDevices()) {
61 test(device);
62 }
63 }
64
65 private static void test(GraphicsDevice device) throws Exception {
66 Robot robot = new Robot();
67 robot.setAutoDelay(50);
68
69 SwingUtilities.invokeAndWait(() -> createAndShowGUI(device));
70 robot.waitForIdle();
71
72 SwingUtilities.invokeAndWait(() -> {
73 srcPoint = getPoint(srcTextArea, 0.1);
74 dstPoint = getPoint(dstTextArea, 0.75);
75 });
76 robot.waitForIdle();
77
78 dragAndDrop(robot, srcPoint, dstPoint);
79 robot.waitForIdle();
80
81 SwingUtilities.invokeAndWait(() -> {
82 passed = TEXT.equals(dstTextArea.getText());
83 frame.dispose();
84 });
85 robot.waitForIdle();
86
87 if (!passed) {
88 throw new RuntimeException("Text Drag and Drop failed!");
89 }
90 }
91
92 private static void createAndShowGUI(GraphicsDevice device) {
93 frame = new JFrame(device.getDefaultConfiguration());
94 Rectangle screen = device.getDefaultConfiguration().getBounds();
95 int x = (int) (screen.getCenterX() - SIZE / 2);
96 int y = (int) (screen.getCenterY() - SIZE / 2);
97 frame.setBounds(x, y, SIZE, SIZE);
98
99 JPanel panel = new JPanel(new BorderLayout());
100
101 srcTextArea = new JTextArea(TEXT);
102 srcTextArea.setDragEnabled(true);
103 srcTextArea.selectAll();
104 dstTextArea = new JTextArea();
105
106 panel.add(dstTextArea, BorderLayout.CENTER);
107 panel.add(srcTextArea, BorderLayout.SOUTH);
108
109 frame.getContentPane().add(panel);
110 frame.setVisible(true);
111 }
112
113 private static Point getPoint(Component component, double scale) {
114 Point point = component.getLocationOnScreen();
115 Dimension bounds = component.getSize();
116 point.translate((int) (bounds.width * scale), (int) (bounds.height * scale));
117 return point;
118 }
119
120 public static void dragAndDrop(Robot robot, Point src, Point dst) throws Exception {
121
122 int x1 = src.x;
123 int y1 = src.y;
124 int x2 = dst.x;
125 int y2 = dst.y;
126 robot.mouseMove(x1, y1);
127 robot.mousePress(InputEvent.BUTTON1_MASK);
128
129 float dmax = (float) Math.max(Math.abs(x2 - x1), Math.abs(y2 - y1));
130 float dx = (x2 - x1) / dmax;
131 float dy = (y2 - y1) / dmax;
132
133 for (int i = 0; i <= dmax; i += 5) {
134 robot.mouseMove((int) (x1 + dx * i), (int) (y1 + dy * i));
135 }
136
137 robot.mouseRelease(InputEvent.BUTTON1_MASK);
138 }
139 }