blob: 9a738d95627ebfde276cebf51204234cd005ef20 (
plain)
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
|
/*
* Copyright 2008 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.zxing.client.j2se;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.ReaderException;
import com.google.zxing.Result;
import com.google.zxing.common.HybridBinarizer;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.MalformedURLException;
import java.nio.file.Path;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
import javax.swing.WindowConstants;
import javax.swing.text.JTextComponent;
/**
* <p>Simple GUI frontend to the library. Right now, only decodes a local file.
* This definitely needs some improvement. Just throwing something down to start.</p>
*
* @author Sean Owen
*/
public final class GUIRunner extends JFrame {
private final JLabel imageLabel;
private final JTextComponent textArea;
private GUIRunner() {
imageLabel = new JLabel();
textArea = new JTextArea();
textArea.setEditable(false);
textArea.setMaximumSize(new Dimension(400, 200));
Container panel = new JPanel();
panel.setLayout(new FlowLayout());
panel.add(imageLabel);
panel.add(textArea);
setTitle("ZXing");
setSize(400, 400);
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
setContentPane(panel);
setLocationRelativeTo(null);
}
public static void main(String[] args) throws MalformedURLException {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
GUIRunner runner = new GUIRunner();
runner.setVisible(true);
runner.chooseImage();
}
});
}
private void chooseImage() {
JFileChooser fileChooser = new JFileChooser();
fileChooser.showOpenDialog(this);
Path file = fileChooser.getSelectedFile().toPath();
Icon imageIcon;
try {
imageIcon = new ImageIcon(file.toUri().toURL());
} catch (MalformedURLException muee) {
throw new IllegalArgumentException(muee);
}
setSize(imageIcon.getIconWidth(), imageIcon.getIconHeight() + 100);
imageLabel.setIcon(imageIcon);
String decodeText = getDecodeText(file);
textArea.setText(decodeText);
}
private static String getDecodeText(Path file) {
BufferedImage image;
try {
image = ImageReader.readImage(file.toUri());
} catch (IOException ioe) {
return ioe.toString();
}
LuminanceSource source = new BufferedImageLuminanceSource(image);
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
Result result;
try {
result = new MultiFormatReader().decode(bitmap);
} catch (ReaderException re) {
return re.toString();
}
return String.valueOf(result.getText());
}
}
|
