1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
/*
* Copyright (c) 2005, 2021, 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.Dimension;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.Shape;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.JTextPane;
import javax.swing.SwingUtilities;
import javax.swing.text.BadLocationException;
import javax.swing.text.Caret;
import javax.swing.text.Document;
import javax.swing.text.Position;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import javax.swing.text.View;
import static java.awt.image.BufferedImage.TYPE_INT_RGB;
/*
* @test
* @bug 6318524 8239502
* @summary Tests that children of ParagraphView do not mess up their parents
* @run main bug6318524
*/
/*
* Test parameters:
* -show: Show frame for visual inspection
* -save: Save the start image after the first paragraph is justified,
* and the last image before it's checked that the first paragraph
* remains justified
* -saveAll: Save images for all the intermediate steps
*/
public class bug6318524 {
private static final String LONG_WORD = "consequences";
private static final String TEXT = "Justified: "
+ LONG_WORD + " " + LONG_WORD;
private static final int REPEAT_COUNT = 18;
private static JTextPane textPane;
private static Dimension bounds;
private static int step = 0;
private static Shape firstLineEndsAt;
public static void main(String[] args) throws Throwable {
List<String> argList = Arrays.asList(args);
// Show frame for visual inspection
final boolean showFrame = argList.contains("-show");
// Save images for all the intermediate steps
final boolean saveAllImages = argList.contains("-saveAll");
// Save the start and last image only
final boolean saveImage = saveAllImages || argList.contains("-save");
SwingUtilities.invokeAndWait(() -> {
createUI(showFrame);
paintToImage(step++, saveAllImages);
makeLineJustified();
paintToImage(step++, saveImage);
firstLineEndsAt = getEndOfFirstLine();
moveCursorToStart();
pressEnter(saveAllImages);
paintToImage(step++, saveImage);
checkLineJustified();
});
}
private static void createUI(boolean showFrame) {
textPane = new JTextPane();
textPane.setText(TEXT);
FontMetrics fm = textPane.getFontMetrics(textPane.getFont());
int textWidth = fm.stringWidth(LONG_WORD);
int textHeight = fm.getHeight();
bounds = new Dimension(2 * textWidth,
(REPEAT_COUNT + 3) * textHeight);
textPane.setPreferredSize(bounds);
textPane.setSize(bounds);
if (showFrame) {
JFrame frame = new JFrame("bug6318524");
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.getContentPane().add(textPane);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}
private static void makeLineJustified() {
SimpleAttributeSet sas = new SimpleAttributeSet();
StyleConstants.setAlignment(sas, StyleConstants.ALIGN_JUSTIFIED);
textPane.setParagraphAttributes(sas, false);
}
private static void moveCursorToStart() {
// Move cursor to the beginning
Caret caret = textPane.getCaret();
caret.setDot(0);
}
private static void pressEnter(boolean saveImages) {
Document doc = textPane.getDocument();
try {
for (int i = 0; i < REPEAT_COUNT; i++) {
// Add a new paragraph at the beginning
doc.insertString(0, "\n", null);
// Paint the textPane after each change
paintToImage(step++, saveImages);
}
} catch (BadLocationException e) {
throw new RuntimeException(e);
}
}
private static void checkLineJustified() {
Shape newPosition = getEndOfFirstLine();
if (((Rectangle) firstLineEndsAt).x != ((Rectangle) newPosition).x) {
System.err.println("Old: " + firstLineEndsAt);
System.err.println("New: " + newPosition);
throw new RuntimeException("The first line of the paragraph is not justified");
}
}
private static Shape getEndOfFirstLine() {
try {
final View rootView = textPane.getUI().getRootView(textPane);
final View boxView = rootView.getView(0);
final View paragraphView = boxView.getView(boxView.getViewCount() - 1);
assert paragraphView.getViewCount() == 2;
final View rowView = paragraphView.getView(0);
return rowView.getView(0)
.modelToView(rowView.getEndOffset() - 1,
textPane.getBounds(),
Position.Bias.Backward);
} catch (BadLocationException e) {
throw new RuntimeException(e);
}
}
private static void paintToImage(final int step, boolean saveImage) {
BufferedImage im = new BufferedImage(bounds.width, bounds.height,
TYPE_INT_RGB);
Graphics g = im.getGraphics();
textPane.paint(g);
g.dispose();
if (saveImage) {
saveImage(im, String.format("%02d.png", step));
}
}
private static void saveImage(BufferedImage image, String fileName) {
try {
ImageIO.write(image, "png", new File(fileName));
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}
|
