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1 package rero.dck.items;
2
3 import java.awt.*;
4 import java.awt.event.*;
5
6 import javax.swing.*;
7 import javax.swing.event.*;
8
9 import java.io.File  ;
10 import java.beans.*;
11
12 import rero.dck.*;
13 import rero.config.*;
14
15 import java.util.*;
16 import javax.swing.filechooser.*;
17
18 public class ImageInput extends SuperInput implements ActionListener
19 {
20 protected JLabel label;
21 protected JTextField text;
22 protected SmallButton button;
23 protected String value;
24 protected JFileChooser chooser;
25
26 protected boolean directory;
27
28 public ImageInput(String _variable, String _value, String _label, char mnemonic)
29 {
30 label = new JLabel(_label);
31 text = new JTextField();
32 button = new SmallButton(text.getBorder(), "Click to open an image chooser dialog");
33
34 button.addActionListener(this);
35
36 setLayout(new BorderLayout(2, 2));
37
38 add(label, BorderLayout.WEST);
39 add(text, BorderLayout.CENTER);
40 add(button, BorderLayout.EAST);
41
42 label.setLabelFor(button);
43 label.setDisplayedMnemonic(mnemonic);
44
45 variable = _variable;
46 value = _value;
47 }
48
49 public void actionPerformed(ActionEvent ev)
50 {
51 if (chooser == null)
52 {
53 chooser = new JFileChooser();
54 chooser.setApproveButtonText("Select Image");
55
56 chooser.addChoosableFileFilter(new ImageFilter());
57 chooser.setAccessory(new ImagePreview(chooser));
58 }
59
60 if (chooser.showDialog(this, null) == JFileChooser.APPROVE_OPTION)
61 {
62 text.setText(chooser.getSelectedFile().getAbsolutePath());
63 text.requestFocus();
64 }
65
66 notifyParent();
67 }
68
69 public void save()
70 {
71 ClientState.getClientState().setString(getVariable(), text.getText());
72 }
73
74 public int getEstimatedWidth()
75 {
76 return (int)label.getPreferredSize().getWidth();
77 }
78
79 public void setAlignWidth(int width)
80 {
81 label.setPreferredSize(new Dimension(width, 0));
82 revalidate();
83 }
84
85 public JComponent getComponent()
86 {
87 return this;
88 }
89
90 public void refresh()
91 {
92 text.setText(ClientState.getClientState().getString(getVariable(), value));
93 }
94
95 protected class ImagePreview extends JPanel implements PropertyChangeListener
96 {
97 protected ImageIcon thumbnail = null;
98 protected File file = null;
99 protected JLabel label;
100
101 public ImagePreview(JFileChooser fc)
102 {
103 setBorder(text.getBorder());
104 setPreferredSize(new Dimension(150, 75));
105 fc.addPropertyChangeListener(this);
106 }
107
108 public void loadImage()
109 {
110 if (file == null)
111 {
112 return;
113 }
114
115 ImageIcon tmpIcon = new ImageIcon(file.getPath());
116
117 if (tmpIcon.getIconWidth() > (getWidth() - 5))
118 {
119 thumbnail = new ImageIcon(tmpIcon.getImage().getScaledInstance(getWidth() - 10, -1, Image.SCALE_DEFAULT));
120
121 if (thumbnail.getIconHeight() > (getHeight() - 5))
122 {
123 thumbnail = new ImageIcon(thumbnail.getImage().getScaledInstance(-1, getHeight() - 10, Image.SCALE_DEFAULT));
124 }
125 }
126 else
127 {
128 thumbnail = tmpIcon;
129 }
130 }
131
132 public void paintComponent(Graphics g)
133 {
134 super.paintComponent(g);
135
136 if (thumbnail == null)
137 {
138 loadImage();
139 }
140
141 if (thumbnail != null)
142 {
143 int x = getWidth()/2 - thumbnail.getIconWidth()/2;
144 int y = getHeight()/2 - thumbnail.getIconHeight()/2;
145
146 if (y < 0)
147 {
148 y = 0;
149 }
150
151 if (x < 5) {
152 x = 5;
153 }
154
155 thumbnail.paintIcon(this, g, x, y);
156 }
157
158 paintBorder(g);
159 }
160
161
162 public void propertyChange(PropertyChangeEvent e)
163 {
164 String prop = e.getPropertyName();
165 if (prop.equals(JFileChooser.SELECTED_FILE_CHANGED_PROPERTY))
166 {
167 file = (File ) e.getNewValue();
168 if (isShowing())
169 {
170 loadImage();
171 repaint();
172 }
173 }
174 }
175 }
176
177 protected static class ImageFilter extends FileFilter
178 {
179 protected static HashSet extensions;
180
181 static
182 {
183 extensions = new HashSet();
184 extensions.add(".png");
185 extensions.add(".tif");
186 extensions.add(".tiff");
187 extensions.add(".gif");
188 extensions.add(".jpg");
189 extensions.add(".jpeg");
190 }
191
192
193 public boolean accept(File f)
194 {
195 if (f.isDirectory())
196 {
197 return true;
198 }
199
200 String file = f.getName();
201
202 if (file.lastIndexOf('.') > -1)
203 {
204 String ext = file.substring(file.lastIndexOf('.'), file.length()).toLowerCase();
205
206 return extensions.contains(ext);
207 }
208
209 return false;
210 }
211
212 public String getDescription()
213 {
214 return "Image Files";
215 }
216 }
217 }
218
219
220 |
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