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1
7
8 package org.jdesktop.swing;
9
10 import java.awt.Dimension  ;
11 import java.awt.Image ;
12 import java.awt.Cursor ;
13
14 import java.io.File ;
15
16 import java.awt.event.MouseAdapter ;
17 import java.awt.event.MouseEvent ;
18
19 import javax.swing.BorderFactory ;
20 import javax.swing.Icon ;
21 import javax.swing.ImageIcon ;
22 import javax.swing.JFileChooser ;
23 import javax.swing.JLabel ;
24 import javax.swing.JPanel ;
25
26 import javax.swing.border.BevelBorder ;
27
28 public class JXImagePanel extends JPanel {
29
30 private JLabel imageLabel;
31
32 private String TEXT = "<html><i><b>Click on the pane<br>To set the image</b></i></html>";
33
34 public JXImagePanel() {
35 setBorder(BorderFactory.createBevelBorder(BevelBorder.LOWERED));
36
37 imageLabel = new JLabel (TEXT);
38 imageLabel.setPreferredSize(new Dimension (200,200));
39 imageLabel.addMouseListener(new MouseHandler());
40 imageLabel.setToolTipText(TEXT);
41 add(imageLabel);
42 }
43
44 public void setIcon(Icon icon) {
45 imageLabel.setIcon(icon);
46 if (icon != null) {
47 imageLabel.setText(null);
48 }
49 else {
50 imageLabel.setText(TEXT);
51 }
52 }
53
54 public Icon getIcon() {
55 return imageLabel.getIcon();
56 }
57
58 public void setImage(Image image) {
59 if (image != null) {
60 setIcon(new ImageIcon (image));
61 } else {
62 setIcon(null);
63 }
64 }
65
66 public Image getImage() {
67 ImageIcon icon = (ImageIcon )imageLabel.getIcon();
68 if (icon != null) {
69 return icon.getImage();
70 }
71 return null;
72 }
73
74 private class MouseHandler extends MouseAdapter {
75 private Cursor oldCursor;
76 private JFileChooser chooser;
77
78 public void mouseClicked(MouseEvent evt) {
79 if (chooser == null) {
80 chooser = new JFileChooser ();
81 }
82 int retVal = chooser.showOpenDialog(JXImagePanel.this);
83 if (retVal == JFileChooser.APPROVE_OPTION) {
84 File file = chooser.getSelectedFile();
85 try {
86 setIcon(new ImageIcon (file.toURL()));
87 } catch (Exception ex) {
88 }
89 }
90 }
91
92 public void mouseEntered(MouseEvent evt) {
93 JLabel label = (JLabel )evt.getSource();
94 if (oldCursor == null) {
95 oldCursor = label.getCursor();
96 label.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
97 }
98 }
99
100 public void mouseExited(MouseEvent evt) {
101 JLabel label = (JLabel )evt.getSource();
102 if (oldCursor != null) {
103 label.setCursor(oldCursor);
104 oldCursor = null;
105 }
106 }
107 }
108 }
109
110 |
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