1 /*
2 *
3 * Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * - Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * - Neither the name of Oracle nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
21 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33
34 import javax.swing.*;
35 import javax.swing.event.*;
36 import javax.swing.text.*;
37 import javax.swing.border.*;
38 import javax.swing.colorchooser.*;
39 import javax.swing.filechooser.*;
40 import javax.accessibility.*;
41
42 import java.awt.*;
43 import java.awt.event.*;
44 import java.beans.*;
45 import java.util.*;
46 import java.io.*;
47 import java.applet.*;
48 import java.net.*;
49
50 /**
51 * JFileChooserDemo
52 *
53 * @author Jeff Dinkins
54 */
55 public class FileChooserDemo extends DemoModule {
56 JLabel theImage;
57 Icon jpgIcon;
58 Icon gifIcon;
59
60 /**
61 * main method allows us to run as a standalone demo.
62 */
63 public static void main(String[] args) {
64 FileChooserDemo demo = new FileChooserDemo(null);
65 demo.mainImpl();
66 }
67
68 /**
69 * FileChooserDemo Constructor
70 */
71 public FileChooserDemo(SwingSet2 swingset) {
72 // Set the title for this demo, and an icon used to represent this
73 // demo inside the SwingSet2 app.
74 super(swingset, "FileChooserDemo", "toolbar/JFileChooser.gif");
75 createFileChooserDemo();
76 }
77
78 public void createFileChooserDemo() {
79 theImage = new JLabel("");
80 jpgIcon = createImageIcon("filechooser/jpgIcon.jpg", "jpg image");
81 gifIcon = createImageIcon("filechooser/gifIcon.gif", "gif image");
82
83 JPanel demoPanel = getDemoPanel();
84 demoPanel.setLayout(new BoxLayout(demoPanel, BoxLayout.Y_AXIS));
85
86 JPanel innerPanel = new JPanel();
87 innerPanel.setLayout(new BoxLayout(innerPanel, BoxLayout.X_AXIS));
88
89 demoPanel.add(Box.createRigidArea(VGAP20));
90 demoPanel.add(innerPanel);
91 demoPanel.add(Box.createRigidArea(VGAP20));
92
93 innerPanel.add(Box.createRigidArea(HGAP20));
94
95 // Create a panel to hold buttons
96 JPanel buttonPanel = new JPanel() {
97 public Dimension getMaximumSize() {
98 return new Dimension(getPreferredSize().width, super.getMaximumSize().height);
99 }
100 };
101 buttonPanel.setLayout(new BoxLayout(buttonPanel, BoxLayout.Y_AXIS));
102
103 buttonPanel.add(Box.createRigidArea(VGAP15));
104 buttonPanel.add(createPlainFileChooserButton());
105 buttonPanel.add(Box.createRigidArea(VGAP15));
106 buttonPanel.add(createPreviewFileChooserButton());
107 buttonPanel.add(Box.createRigidArea(VGAP15));
108 buttonPanel.add(createCustomFileChooserButton());
109 buttonPanel.add(Box.createVerticalGlue());
110
111 // Create a panel to hold the image
112 JPanel imagePanel = new JPanel();
113 imagePanel.setLayout(new BorderLayout());
114 imagePanel.setBorder(new BevelBorder(BevelBorder.LOWERED));
115 JScrollPane scroller = new JScrollPane(theImage);
116 scroller.getVerticalScrollBar().setUnitIncrement(10);
117 scroller.getHorizontalScrollBar().setUnitIncrement(10);
118 imagePanel.add(scroller, BorderLayout.CENTER);
119
120 // add buttons and image panels to inner panel
121 innerPanel.add(buttonPanel);
122 innerPanel.add(Box.createRigidArea(HGAP30));
123 innerPanel.add(imagePanel);
124 innerPanel.add(Box.createRigidArea(HGAP20));
125 }
126
127 public JFileChooser createFileChooser() {
128 // create a filechooser
129 JFileChooser fc = new JFileChooser();
130 if (getSwingSet2() != null && getSwingSet2().isDragEnabled()) {
131 fc.setDragEnabled(true);
132 }
133
134 // set the current directory to be the images directory
135 File swingFile = new File("resources/images/About.jpg");
136 if(swingFile.exists()) {
137 fc.setCurrentDirectory(swingFile);
138 fc.setSelectedFile(swingFile);
139 }
140
141 return fc;
142 }
143
144
145 public JButton createPlainFileChooserButton() {
146 Action a = new AbstractAction(getString("FileChooserDemo.plainbutton")) {
147 public void actionPerformed(ActionEvent e) {
148 JFileChooser fc = createFileChooser();
149
150 // show the filechooser
151 int result = fc.showOpenDialog(getDemoPanel());
152
153 // if we selected an image, load the image
154 if(result == JFileChooser.APPROVE_OPTION) {
155 loadImage(fc.getSelectedFile().getPath());
156 }
157 }
158 };
159 return createButton(a);
160 }
161
162 public JButton createPreviewFileChooserButton() {
163 Action a = new AbstractAction(getString("FileChooserDemo.previewbutton")) {
164 public void actionPerformed(ActionEvent e) {
165 JFileChooser fc = createFileChooser();
166
167 // Add filefilter & fileview
168 javax.swing.filechooser.FileFilter filter = createFileFilter(
169 getString("FileChooserDemo.filterdescription"),
170 "jpg", "gif");
171 ExampleFileView fileView = new ExampleFileView();
172 fileView.putIcon("jpg", jpgIcon);
173 fileView.putIcon("gif", gifIcon);
174 fc.setFileView(fileView);
175 fc.addChoosableFileFilter(filter);
176 fc.setFileFilter(filter);
177
178 // add preview accessory
179 fc.setAccessory(new FilePreviewer(fc));
180
181 // show the filechooser
182 int result = fc.showOpenDialog(getDemoPanel());
183
184 // if we selected an image, load the image
185 if(result == JFileChooser.APPROVE_OPTION) {
186 loadImage(fc.getSelectedFile().getPath());
187 }
188 }
189 };
190 return createButton(a);
191 }
192
193 JDialog dialog;
194 JFileChooser fc;
195
196 private javax.swing.filechooser.FileFilter createFileFilter(
197 String description, String...extensions) {
198 description = createFileNameFilterDescriptionFromExtensions(
199 description, extensions);
200 return new FileNameExtensionFilter(description, extensions);
201 }
202
203 private String createFileNameFilterDescriptionFromExtensions(
204 String description, String[] extensions) {
205 String fullDescription = (description == null) ?
206 "(" : description + " (";
207 // build the description from the extension list
208 fullDescription += "." + extensions[0];
209 for (int i = 1; i < extensions.length; i++) {
210 fullDescription += ", .";
211 fullDescription += extensions[i];
212 }
213 fullDescription += ")";
214 return fullDescription;
215 }
216
217 public JButton createCustomFileChooserButton() {
218 Action a = new AbstractAction(getString("FileChooserDemo.custombutton")) {
219 public void actionPerformed(ActionEvent e) {
220 fc = createFileChooser();
221
222 // Add filefilter & fileview
223 javax.swing.filechooser.FileFilter filter = createFileFilter(
224 getString("FileChooserDemo.filterdescription"),
225 "jpg", "gif");
226 ExampleFileView fileView = new ExampleFileView();
227 fileView.putIcon("jpg", jpgIcon);
228 fileView.putIcon("gif", gifIcon);
229 fc.setFileView(fileView);
230 fc.addChoosableFileFilter(filter);
231
232 // add preview accessory
233 fc.setAccessory(new FilePreviewer(fc));
234
235 // remove the approve/cancel buttons
236 fc.setControlButtonsAreShown(false);
237
238 // make custom controls
239 //wokka
240 JPanel custom = new JPanel();
241 custom.setLayout(new BoxLayout(custom, BoxLayout.Y_AXIS));
242 custom.add(Box.createRigidArea(VGAP10));
243 JLabel description = new JLabel(getString("FileChooserDemo.description"));
244 description.setAlignmentX(JLabel.CENTER_ALIGNMENT);
245 custom.add(description);
246 custom.add(Box.createRigidArea(VGAP10));
247 custom.add(fc);
248
249 Action okAction = createOKAction();
250 fc.addActionListener(okAction);
251
252 JPanel buttons = new JPanel();
253 buttons.setLayout(new BoxLayout(buttons, BoxLayout.X_AXIS));
254 buttons.add(Box.createRigidArea(HGAP10));
255 buttons.add(createImageButton(createFindAction()));
256 buttons.add(Box.createRigidArea(HGAP10));
257 buttons.add(createButton(createAboutAction()));
258 buttons.add(Box.createRigidArea(HGAP10));
259 buttons.add(createButton(okAction));
260 buttons.add(Box.createRigidArea(HGAP10));
261 buttons.add(createButton(createCancelAction()));
262 buttons.add(Box.createRigidArea(HGAP10));
263 buttons.add(createImageButton(createHelpAction()));
264 buttons.add(Box.createRigidArea(HGAP10));
265
266 custom.add(buttons);
267 custom.add(Box.createRigidArea(VGAP10));
268
269 // show the filechooser
270 Frame parent = (Frame) SwingUtilities.getAncestorOfClass(Frame.class, getDemoPanel());
271 dialog = new JDialog(parent, getString("FileChooserDemo.dialogtitle"), true);
272 dialog.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
273 dialog.getContentPane().add(custom, BorderLayout.CENTER);
274 dialog.pack();
275 dialog.setLocationRelativeTo(getDemoPanel());
276 dialog.show();
277 }
278 };
279 return createButton(a);
280 }
281
282 public Action createAboutAction() {
283 return new AbstractAction(getString("FileChooserDemo.about")) {
284 public void actionPerformed(ActionEvent e) {
285 File file = fc.getSelectedFile();
286 String text;
287 if(file == null) {
288 text = getString("FileChooserDemo.nofileselected");
289 } else {
290 text = "<html>" + getString("FileChooserDemo.thefile");
291 text += "<br><font color=green>" + file.getName() + "</font><br>";
292 text += getString("FileChooserDemo.isprobably") + "</html>";
293 }
294 JOptionPane.showMessageDialog(getDemoPanel(), text);
295 }
296 };
297 }
298
299 public Action createOKAction() {
300 return new AbstractAction(getString("FileChooserDemo.ok")) {
301 public void actionPerformed(ActionEvent e) {
302 dialog.dispose();
303 if (!e.getActionCommand().equals(JFileChooser.CANCEL_SELECTION)
304 && fc.getSelectedFile() != null) {
305
306 loadImage(fc.getSelectedFile().getPath());
307 }
308 }
309 };
310 }
311
312 public Action createCancelAction() {
313 return new AbstractAction(getString("FileChooserDemo.cancel")) {
314 public void actionPerformed(ActionEvent e) {
315 dialog.dispose();
316 }
317 };
318 }
319
320 public Action createFindAction() {
321 Icon icon = createImageIcon("filechooser/find.gif", getString("FileChooserDemo.find"));
322 return new AbstractAction("", icon) {
323 public void actionPerformed(ActionEvent e) {
324 String result = JOptionPane.showInputDialog(getDemoPanel(), getString("FileChooserDemo.findquestion"));
325 if (result != null) {
326 JOptionPane.showMessageDialog(getDemoPanel(), getString("FileChooserDemo.findresponse"));
327 }
328 }
329 };
330 }
331
332 public Action createHelpAction() {
333 Icon icon = createImageIcon("filechooser/help.gif", getString("FileChooserDemo.help"));
334 return new AbstractAction("", icon) {
335 public void actionPerformed(ActionEvent e) {
336 JOptionPane.showMessageDialog(getDemoPanel(), getString("FileChooserDemo.helptext"));
337 }
338 };
339 }
340
341 class MyImageIcon extends ImageIcon {
342 public MyImageIcon(String filename) {
343 super(filename);
344 };
345 public synchronized void paintIcon(Component c, Graphics g, int x, int y) {
346 g.setColor(Color.white);
347 g.fillRect(0,0, c.getWidth(), c.getHeight());
348 if(getImageObserver() == null) {
349 g.drawImage(
350 getImage(),
351 c.getWidth()/2 - getIconWidth()/2,
352 c.getHeight()/2 - getIconHeight()/2,
353 c
354 );
355 } else {
356 g.drawImage(
357 getImage(),
358 c.getWidth()/2 - getIconWidth()/2,
359 c.getHeight()/2 - getIconHeight()/2,
360 getImageObserver()
361 );
362 }
363 }
364 }
365
366 public void loadImage(String filename) {
367 theImage.setIcon(new MyImageIcon(filename));
368 }
369
370 public JButton createButton(Action a) {
371 JButton b = new JButton(a) {
372 public Dimension getMaximumSize() {
373 int width = Short.MAX_VALUE;
374 int height = super.getMaximumSize().height;
375 return new Dimension(width, height);
376 }
377 };
378 return b;
379 }
380
381 public JButton createImageButton(Action a) {
382 JButton b = new JButton(a);
383 b.setMargin(new Insets(0,0,0,0));
384 return b;
385 }
386 }
387
388 class FilePreviewer extends JComponent implements PropertyChangeListener {
389 ImageIcon thumbnail = null;
390
391 public FilePreviewer(JFileChooser fc) {
392 setPreferredSize(new Dimension(100, 50));
393 fc.addPropertyChangeListener(this);
394 setBorder(new BevelBorder(BevelBorder.LOWERED));
395 }
396
397 public void loadImage(File f) {
398 if (f == null) {
399 thumbnail = null;
400 } else {
401 ImageIcon tmpIcon = new ImageIcon(f.getPath());
402 if(tmpIcon.getIconWidth() > 90) {
403 thumbnail = new ImageIcon(
404 tmpIcon.getImage().getScaledInstance(90, -1, Image.SCALE_DEFAULT));
405 } else {
406 thumbnail = tmpIcon;
407 }
408 }
409 }
410
411 public void propertyChange(PropertyChangeEvent e) {
412 String prop = e.getPropertyName();
413 if(prop == JFileChooser.SELECTED_FILE_CHANGED_PROPERTY) {
414 if(isShowing()) {
415 loadImage((File) e.getNewValue());
416 repaint();
417 }
418 }
419 }
420
421 public void paint(Graphics g) {
422 super.paint(g);
423 if(thumbnail != null) {
424 int x = getWidth()/2 - thumbnail.getIconWidth()/2;
425 int y = getHeight()/2 - thumbnail.getIconHeight()/2;
426 if(y < 0) {
427 y = 0;
428 }
429
430 if(x < 5) {
431 x = 5;
432 }
433 thumbnail.paintIcon(this, g, x, y);
434 }
435 }
436 }