| 1 | /* |
| 2 | * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions |
| 6 | * are met: |
| 7 | * |
| 8 | * -Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * |
| 11 | * -Redistribution in binary form must reproduct the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in |
| 13 | * the documentation and/or other materials provided with the distribution. |
| 14 | * |
| 15 | * Neither the name of Sun Microsystems, Inc. or the names of contributors |
| 16 | * may be used to endorse or promote products derived from this software |
| 17 | * without specific prior written permission. |
| 18 | * |
| 19 | * This software is provided "AS IS," without a warranty of any kind. ALL |
| 20 | * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING |
| 21 | * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE |
| 22 | * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT |
| 23 | * BE LIABLE FOR ANY DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT |
| 24 | * OF OR RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THE SOFTWARE OR ITS |
| 25 | * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST |
| 26 | * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, |
| 27 | * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY |
| 28 | * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN |
| 29 | * IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. |
| 30 | * |
| 31 | * You acknowledge that Software is not designed, licensed or intended for |
| 32 | * use in the design, construction, operation or maintenance of any nuclear |
| 33 | * facility. |
| 34 | */ |
| 35 | |
| 36 | /* |
| 37 | * @(#)FileChooserDemo.java 1.13 03/01/23 |
| 38 | */ |
| 39 | |
| 40 | |
| 41 | import javax.swing.*; |
| 42 | import javax.swing.event.*; |
| 43 | import javax.swing.text.*; |
| 44 | import javax.swing.border.*; |
| 45 | import javax.swing.colorchooser.*; |
| 46 | import javax.swing.filechooser.*; |
| 47 | import javax.accessibility.*; |
| 48 | |
| 49 | import java.awt.*; |
| 50 | import java.awt.event.*; |
| 51 | import java.beans.*; |
| 52 | import java.util.*; |
| 53 | import java.io.*; |
| 54 | import java.applet.*; |
| 55 | import java.net.*; |
| 56 | |
| 57 | /** |
| 58 | * JFileChooserDemo |
| 59 | * |
| 60 | * @version 1.1 07/16/99 |
| 61 | * @author Jeff Dinkins |
| 62 | */ |
| 63 | public class FileChooserDemo extends DemoModule { |
| 64 | JLabel theImage; |
| 65 | Icon jpgIcon; |
| 66 | Icon gifIcon; |
| 67 | |
| 68 | /** |
| 69 | * main method allows us to run as a standalone demo. |
| 70 | */ |
| 71 | public static void main(String[] args) { |
| 72 | FileChooserDemo demo = new FileChooserDemo(null); |
| 73 | demo.mainImpl(); |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * FileChooserDemo Constructor |
| 78 | */ |
| 79 | public FileChooserDemo(SwingSet2 swingset) { |
| 80 | // Set the title for this demo, and an icon used to represent this |
| 81 | // demo inside the SwingSet2 app. |
| 82 | super(swingset, "FileChooserDemo", "toolbar/JFileChooser.gif"); |
| 83 | createFileChooserDemo(); |
| 84 | } |
| 85 | |
| 86 | public void createFileChooserDemo() { |
| 87 | theImage = new JLabel(""); |
| 88 | jpgIcon = createImageIcon("filechooser/jpgIcon.jpg", "jpg image"); |
| 89 | gifIcon = createImageIcon("filechooser/gifIcon.gif", "gif image"); |
| 90 | |
| 91 | JPanel demoPanel = getDemoPanel(); |
| 92 | demoPanel.setLayout(new BoxLayout(demoPanel, BoxLayout.Y_AXIS)); |
| 93 | |
| 94 | JPanel innerPanel = new JPanel(); |
| 95 | innerPanel.setLayout(new BoxLayout(innerPanel, BoxLayout.X_AXIS)); |
| 96 | |
| 97 | demoPanel.add(Box.createRigidArea(VGAP20)); |
| 98 | demoPanel.add(innerPanel); |
| 99 | demoPanel.add(Box.createRigidArea(VGAP20)); |
| 100 | |
| 101 | innerPanel.add(Box.createRigidArea(HGAP20)); |
| 102 | |
| 103 | // Create a panel to hold buttons |
| 104 | JPanel buttonPanel = new JPanel() { |
| 105 | public Dimension getMaximumSize() { |
| 106 | return new Dimension(getPreferredSize().width, super.getMaximumSize().height); |
| 107 | } |
| 108 | }; |
| 109 | buttonPanel.setLayout(new BoxLayout(buttonPanel, BoxLayout.Y_AXIS)); |
| 110 | |
| 111 | buttonPanel.add(Box.createRigidArea(VGAP15)); |
| 112 | buttonPanel.add(createPlainFileChooserButton()); |
| 113 | buttonPanel.add(Box.createRigidArea(VGAP15)); |
| 114 | buttonPanel.add(createPreviewFileChooserButton()); |
| 115 | buttonPanel.add(Box.createRigidArea(VGAP15)); |
| 116 | buttonPanel.add(createCustomFileChooserButton()); |
| 117 | buttonPanel.add(Box.createVerticalGlue()); |
| 118 | |
| 119 | // Create a panel to hold the image |
| 120 | JPanel imagePanel = new JPanel(); |
| 121 | imagePanel.setLayout(new BorderLayout()); |
| 122 | imagePanel.setBorder(new BevelBorder(BevelBorder.LOWERED)); |
| 123 | JScrollPane scroller = new JScrollPane(theImage); |
| 124 | scroller.getVerticalScrollBar().setUnitIncrement(10); |
| 125 | scroller.getHorizontalScrollBar().setUnitIncrement(10); |
| 126 | imagePanel.add(scroller, BorderLayout.CENTER); |
| 127 | |
| 128 | // add buttons and image panels to inner panel |
| 129 | innerPanel.add(buttonPanel); |
| 130 | innerPanel.add(Box.createRigidArea(HGAP30)); |
| 131 | innerPanel.add(imagePanel); |
| 132 | innerPanel.add(Box.createRigidArea(HGAP20)); |
| 133 | } |
| 134 | |
| 135 | public JFileChooser createFileChooser() { |
| 136 | // create a filechooser |
| 137 | JFileChooser fc = new JFileChooser(); |
| 138 | |
| 139 | // set the current directory to be the images directory |
| 140 | File swingFile = new File("resources/images/About.jpg"); |
| 141 | if(swingFile.exists()) { |
| 142 | fc.setCurrentDirectory(swingFile); |
| 143 | fc.setSelectedFile(swingFile); |
| 144 | } |
| 145 | |
| 146 | return fc; |
| 147 | } |
| 148 | |
| 149 | |
| 150 | public JButton createPlainFileChooserButton() { |
| 151 | Action a = new AbstractAction(getString("FileChooserDemo.plainbutton")) { |
| 152 | public void actionPerformed(ActionEvent e) { |
| 153 | JFileChooser fc = createFileChooser(); |
| 154 | |
| 155 | // show the filechooser |
| 156 | int result = fc.showOpenDialog(getDemoPanel()); |
| 157 | |
| 158 | // if we selected an image, load the image |
| 159 | if(result == JFileChooser.APPROVE_OPTION) { |
| 160 | loadImage(fc.getSelectedFile().getPath()); |
| 161 | } |
| 162 | } |
| 163 | }; |
| 164 | return createButton(a); |
| 165 | } |
| 166 | |
| 167 | public JButton createPreviewFileChooserButton() { |
| 168 | Action a = new AbstractAction(getString("FileChooserDemo.previewbutton")) { |
| 169 | public void actionPerformed(ActionEvent e) { |
| 170 | JFileChooser fc = createFileChooser(); |
| 171 | |
| 172 | // Add filefilter & fileview |
| 173 | ExampleFileFilter filter = new ExampleFileFilter( |
| 174 | new String[] {"jpg", "gif"}, getString("FileChooserDemo.filterdescription") |
| 175 | ); |
| 176 | ExampleFileView fileView = new ExampleFileView(); |
| 177 | fileView.putIcon("jpg", jpgIcon); |
| 178 | fileView.putIcon("gif", gifIcon); |
| 179 | fc.setFileView(fileView); |
| 180 | fc.addChoosableFileFilter(filter); |
| 181 | fc.setFileFilter(filter); |
| 182 | |
| 183 | // add preview accessory |
| 184 | fc.setAccessory(new FilePreviewer(fc)); |
| 185 | |
| 186 | // show the filechooser |
| 187 | int result = fc.showOpenDialog(getDemoPanel()); |
| 188 | |
| 189 | // if we selected an image, load the image |
| 190 | if(result == JFileChooser.APPROVE_OPTION) { |
| 191 | loadImage(fc.getSelectedFile().getPath()); |
| 192 | } |
| 193 | } |
| 194 | }; |
| 195 | return createButton(a); |
| 196 | } |
| 197 | |
| 198 | JDialog dialog; |
| 199 | JFileChooser fc; |
| 200 | |
| 201 | public JButton createCustomFileChooserButton() { |
| 202 | Action a = new AbstractAction(getString("FileChooserDemo.custombutton")) { |
| 203 | public void actionPerformed(ActionEvent e) { |
| 204 | fc = createFileChooser(); |
| 205 | |
| 206 | // Add filefilter & fileview |
| 207 | ExampleFileFilter filter = new ExampleFileFilter( |
| 208 | new String[] {"jpg", "gif"}, getString("FileChooserDemo.filterdescription") |
| 209 | ); |
| 210 | ExampleFileView fileView = new ExampleFileView(); |
| 211 | fileView.putIcon("jpg", jpgIcon); |
| 212 | fileView.putIcon("gif", gifIcon); |
| 213 | fc.setFileView(fileView); |
| 214 | fc.addChoosableFileFilter(filter); |
| 215 | |
| 216 | // add preview accessory |
| 217 | fc.setAccessory(new FilePreviewer(fc)); |
| 218 | |
| 219 | // remove the approve/cancel buttons |
| 220 | fc.setControlButtonsAreShown(false); |
| 221 | |
| 222 | // make custom controls |
| 223 | //wokka |
| 224 | JPanel custom = new JPanel(); |
| 225 | custom.setLayout(new BoxLayout(custom, BoxLayout.Y_AXIS)); |
| 226 | custom.add(Box.createRigidArea(VGAP10)); |
| 227 | JLabel description = new JLabel(getString("FileChooserDemo.description")); |
| 228 | description.setAlignmentX(JLabel.CENTER_ALIGNMENT); |
| 229 | custom.add(description); |
| 230 | custom.add(Box.createRigidArea(VGAP10)); |
| 231 | custom.add(fc); |
| 232 | |
| 233 | Action okAction = createOKAction(); |
| 234 | fc.addActionListener(okAction); |
| 235 | |
| 236 | JPanel buttons = new JPanel(); |
| 237 | buttons.setLayout(new BoxLayout(buttons, BoxLayout.X_AXIS)); |
| 238 | buttons.add(Box.createRigidArea(HGAP10)); |
| 239 | buttons.add(createImageButton(createFindAction())); |
| 240 | buttons.add(Box.createRigidArea(HGAP10)); |
| 241 | buttons.add(createButton(createAboutAction())); |
| 242 | buttons.add(Box.createRigidArea(HGAP10)); |
| 243 | buttons.add(createButton(okAction)); |
| 244 | buttons.add(Box.createRigidArea(HGAP10)); |
| 245 | buttons.add(createButton(createCancelAction())); |
| 246 | buttons.add(Box.createRigidArea(HGAP10)); |
| 247 | buttons.add(createImageButton(createHelpAction())); |
| 248 | buttons.add(Box.createRigidArea(HGAP10)); |
| 249 | |
| 250 | custom.add(buttons); |
| 251 | custom.add(Box.createRigidArea(VGAP10)); |
| 252 | |
| 253 | // show the filechooser |
| 254 | Frame parent = (Frame) SwingUtilities.getAncestorOfClass(Frame.class, getDemoPanel()); |
| 255 | dialog = new JDialog(parent, getString("FileChooserDemo.dialogtitle"), true); |
| 256 | dialog.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE); |
| 257 | dialog.getContentPane().add(custom, BorderLayout.CENTER); |
| 258 | dialog.pack(); |
| 259 | dialog.setLocationRelativeTo(getDemoPanel()); |
| 260 | dialog.show(); |
| 261 | } |
| 262 | }; |
| 263 | return createButton(a); |
| 264 | } |
| 265 | |
| 266 | public Action createAboutAction() { |
| 267 | return new AbstractAction(getString("FileChooserDemo.about")) { |
| 268 | public void actionPerformed(ActionEvent e) { |
| 269 | File file = fc.getSelectedFile(); |
| 270 | String text; |
| 271 | if(file == null) { |
| 272 | text = getString("FileChooserDemo.nofileselected"); |
| 273 | } else { |
| 274 | text = "<html>" + getString("FileChooserDemo.thefile"); |
| 275 | text += "<br><font color=green>" + file.getName() + "</font><br>"; |
| 276 | text += getString("FileChooserDemo.isprobably") + "</html>"; |
| 277 | } |
| 278 | JOptionPane.showMessageDialog(getDemoPanel(), text); |
| 279 | } |
| 280 | }; |
| 281 | } |
| 282 | |
| 283 | public Action createOKAction() { |
| 284 | return new AbstractAction(getString("FileChooserDemo.ok")) { |
| 285 | public void actionPerformed(ActionEvent e) { |
| 286 | dialog.dispose(); |
| 287 | if (!e.getActionCommand().equals(JFileChooser.CANCEL_SELECTION) |
| 288 | && fc.getSelectedFile() != null) { |
| 289 | |
| 290 | loadImage(fc.getSelectedFile().getPath()); |
| 291 | } |
| 292 | } |
| 293 | }; |
| 294 | } |
| 295 | |
| 296 | public Action createCancelAction() { |
| 297 | return new AbstractAction(getString("FileChooserDemo.cancel")) { |
| 298 | public void actionPerformed(ActionEvent e) { |
| 299 | dialog.dispose(); |
| 300 | } |
| 301 | }; |
| 302 | } |
| 303 | |
| 304 | public Action createFindAction() { |
| 305 | Icon icon = createImageIcon("filechooser/find.gif", getString("FileChooserDemo.find")); |
| 306 | return new AbstractAction("", icon) { |
| 307 | public void actionPerformed(ActionEvent e) { |
| 308 | String result = JOptionPane.showInputDialog(getDemoPanel(), getString("FileChooserDemo.findquestion")); |
| 309 | if (result != null) { |
| 310 | JOptionPane.showMessageDialog(getDemoPanel(), getString("FileChooserDemo.findresponse")); |
| 311 | } |
| 312 | } |
| 313 | }; |
| 314 | } |
| 315 | |
| 316 | public Action createHelpAction() { |
| 317 | Icon icon = createImageIcon("filechooser/help.gif", getString("FileChooserDemo.help")); |
| 318 | return new AbstractAction("", icon) { |
| 319 | public void actionPerformed(ActionEvent e) { |
| 320 | JOptionPane.showMessageDialog(getDemoPanel(), getString("FileChooserDemo.helptext")); |
| 321 | } |
| 322 | }; |
| 323 | } |
| 324 | |
| 325 | class MyImageIcon extends ImageIcon { |
| 326 | public MyImageIcon(String filename) { |
| 327 | super(filename); |
| 328 | }; |
| 329 | public synchronized void paintIcon(Component c, Graphics g, int x, int y) { |
| 330 | g.setColor(Color.white); |
| 331 | g.fillRect(0,0, c.getWidth(), c.getHeight()); |
| 332 | if(getImageObserver() == null) { |
| 333 | g.drawImage( |
| 334 | getImage(), |
| 335 | c.getWidth()/2 - getIconWidth()/2, |
| 336 | c.getHeight()/2 - getIconHeight()/2, |
| 337 | c |
| 338 | ); |
| 339 | } else { |
| 340 | g.drawImage( |
| 341 | getImage(), |
| 342 | c.getWidth()/2 - getIconWidth()/2, |
| 343 | c.getHeight()/2 - getIconHeight()/2, |
| 344 | getImageObserver() |
| 345 | ); |
| 346 | } |
| 347 | } |
| 348 | } |
| 349 | |
| 350 | public void loadImage(String filename) { |
| 351 | theImage.setIcon(new MyImageIcon(filename)); |
| 352 | } |
| 353 | |
| 354 | public JButton createButton(Action a) { |
| 355 | JButton b = new JButton(a) { |
| 356 | public Dimension getMaximumSize() { |
| 357 | int width = Short.MAX_VALUE; |
| 358 | int height = super.getMaximumSize().height; |
| 359 | return new Dimension(width, height); |
| 360 | } |
| 361 | }; |
| 362 | return b; |
| 363 | } |
| 364 | |
| 365 | public JButton createImageButton(Action a) { |
| 366 | JButton b = new JButton(a); |
| 367 | b.setMargin(new Insets(0,0,0,0)); |
| 368 | return b; |
| 369 | } |
| 370 | } |
| 371 | |
| 372 | class FilePreviewer extends JComponent implements PropertyChangeListener { |
| 373 | ImageIcon thumbnail = null; |
| 374 | |
| 375 | public FilePreviewer(JFileChooser fc) { |
| 376 | setPreferredSize(new Dimension(100, 50)); |
| 377 | fc.addPropertyChangeListener(this); |
| 378 | setBorder(new BevelBorder(BevelBorder.LOWERED)); |
| 379 | } |
| 380 | |
| 381 | public void loadImage(File f) { |
| 382 | if (f == null) { |
| 383 | thumbnail = null; |
| 384 | } else { |
| 385 | ImageIcon tmpIcon = new ImageIcon(f.getPath()); |
| 386 | if(tmpIcon.getIconWidth() > 90) { |
| 387 | thumbnail = new ImageIcon( |
| 388 | tmpIcon.getImage().getScaledInstance(90, -1, Image.SCALE_DEFAULT)); |
| 389 | } else { |
| 390 | thumbnail = tmpIcon; |
| 391 | } |
| 392 | } |
| 393 | } |
| 394 | |
| 395 | public void propertyChange(PropertyChangeEvent e) { |
| 396 | String prop = e.getPropertyName(); |
| 397 | if(prop == JFileChooser.SELECTED_FILE_CHANGED_PROPERTY) { |
| 398 | if(isShowing()) { |
| 399 | loadImage((File) e.getNewValue()); |
| 400 | repaint(); |
| 401 | } |
| 402 | } |
| 403 | } |
| 404 | |
| 405 | public void paint(Graphics g) { |
| 406 | super.paint(g); |
| 407 | if(thumbnail != null) { |
| 408 | int x = getWidth()/2 - thumbnail.getIconWidth()/2; |
| 409 | int y = getHeight()/2 - thumbnail.getIconHeight()/2; |
| 410 | if(y < 0) { |
| 411 | y = 0; |
| 412 | } |
| 413 | |
| 414 | if(x < 5) { |
| 415 | x = 5; |
| 416 | } |
| 417 | thumbnail.paintIcon(this, g, x, y); |
| 418 | } |
| 419 | } |
| 420 | } |
| 421 | |