Mercurial > projects > dwt-samples
annotate jface/Librarian.d @ 72:fc7a8f537871
Open/Save with experimental runner factory.
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 13 Apr 2008 17:19:38 +0200 |
| parents | 63a7769cce57 |
| children | 9ff9b8f7284b |
| rev | line source |
|---|---|
| 66 | 1 module jface.Librarian; |
| 2 | |
| 3 import dwtx.core.runtime.IProgressMonitor; | |
| 4 import dwtx.jface.action.MenuManager; | |
| 5 import dwtx.jface.action.StatusLineManager; | |
| 6 import dwtx.jface.action.ToolBarManager; | |
| 7 import dwtx.jface.action.CoolBarManager; | |
| 8 import dwtx.jface.action.Action; | |
| 9 import dwtx.jface.action.IAction; | |
| 10 import dwtx.jface.dialogs.MessageDialog; | |
| 11 import dwtx.jface.operation.IRunnableWithProgress; | |
| 12 import dwtx.jface.operation.ModalContext; | |
| 13 import dwtx.jface.util.IPropertyChangeListener; | |
| 14 import dwtx.jface.util.PropertyChangeEvent; | |
| 15 import dwtx.jface.viewers.TableViewer; | |
| 16 import dwtx.jface.viewers.Viewer; | |
| 17 import dwtx.jface.viewers.ITableLabelProvider; | |
| 18 import dwtx.jface.viewers.IStructuredContentProvider; | |
| 19 import dwtx.jface.viewers.ICellModifier; | |
| 20 import dwtx.jface.viewers.ILabelProviderListener; | |
| 21 import dwtx.jface.viewers.TextCellEditor; | |
| 22 import dwtx.jface.viewers.CellEditor; | |
| 23 import dwtx.jface.viewers.CheckboxCellEditor; | |
| 24 import dwtx.jface.action.Separator; | |
| 25 import dwtx.jface.viewers.IStructuredSelection; | |
| 26 import dwtx.jface.window.ApplicationWindow; | |
| 27 import dwtx.jface.resource.ImageDescriptor; | |
| 28 | |
| 29 import dwt.DWT; | |
| 30 | |
| 31 import dwt.graphics.Image; | |
| 32 import dwt.graphics.ImageData; | |
| 33 import dwt.layout.GridData; | |
| 34 import dwt.layout.GridLayout; | |
| 35 import dwt.widgets.Display; | |
| 36 import dwt.widgets.FileDialog; | |
| 37 import dwt.widgets.MessageBox; | |
| 38 import dwt.widgets.Shell; | |
| 39 import dwt.widgets.Table; | |
| 40 import dwt.widgets.TableColumn; | |
| 41 import dwt.widgets.Control; | |
| 42 import dwt.widgets.Composite; | |
| 43 import dwt.widgets.Item; | |
| 44 | |
| 45 import dwt.dwthelper.utils; | |
| 46 import dwt.dwthelper.ByteArrayInputStream; | |
| 47 | |
| 48 import tango.text.convert.Format; | |
| 49 import tango.util.collection.LinkSeq; | |
| 50 import tango.io.FilePath; | |
| 51 import tango.io.File; | |
| 52 import tango.io.Print; | |
| 53 import tango.io.stream.FileStream; | |
| 54 import tango.text.Util; | |
| 55 import tango.text.stream.LineIterator; | |
| 56 import tango.util.log.Trace; | |
| 57 | |
| 67 | 58 version(JIVE) import jive.stacktrace; |
| 59 | |
| 66 | 60 /++ |
| 61 Known Problem: | |
| 62 Blocks in Save Method | |
| 63 Not prepared for windows. | |
| 64 ++/ | |
| 65 | |
| 66 /** | |
| 67 * The application entry point | |
| 68 * | |
| 69 * @param args the command line arguments | |
| 70 */ | |
| 71 void main() { | |
| 72 (new Librarian()).run(); | |
| 73 } | |
| 74 | |
| 75 | |
| 76 /** | |
| 77 * This class keeps track of you library, and who you've loaned books to | |
| 78 */ | |
| 79 public class Librarian : ApplicationWindow { | |
| 80 // A static instance to the running application | |
| 81 private static Librarian APP; | |
| 82 | |
| 83 // Table column names/properties | |
| 84 public static const String TITLE = "Title"; | |
| 85 public static const String CHECKED_OUT = "?"; | |
| 86 public static const String WHO = "By Whom"; | |
| 87 public static const String[] PROPS = [ TITLE, CHECKED_OUT, WHO ]; | |
| 88 | |
| 89 // The viewer | |
| 90 private TableViewer viewer; | |
| 91 | |
| 92 // The current library | |
| 93 private Library library; | |
| 94 | |
| 95 // The actions | |
| 96 private NewAction newAction; | |
| 97 private OpenAction openAction; | |
| 98 private SaveAction saveAction; | |
| 99 private SaveAsAction saveAsAction; | |
| 100 private ExitAction exitAction; | |
| 101 private AddBookAction addBookAction; | |
| 102 private RemoveBookAction removeBookAction; | |
| 103 private AboutAction aboutAction; | |
| 104 private ShowBookCountAction showBookCountAction; | |
| 105 | |
| 106 /** | |
| 107 * Gets the running application | |
| 108 */ | |
| 109 public static Librarian getApp() { | |
| 110 return APP; | |
| 111 } | |
| 112 | |
| 113 /** | |
| 114 * Librarian constructor | |
| 115 */ | |
| 116 public this() { | |
| 117 super(null); | |
| 118 | |
| 119 APP = this; | |
| 120 | |
| 121 // Create the data model | |
| 122 library = new Library(); | |
| 123 | |
| 124 // Create the actions | |
| 125 newAction = new NewAction(); | |
| 126 openAction = new OpenAction(); | |
| 127 saveAction = new SaveAction(); | |
| 128 saveAsAction = new SaveAsAction(); | |
| 129 exitAction = new ExitAction(); | |
| 130 addBookAction = new AddBookAction(); | |
| 131 removeBookAction = new RemoveBookAction(); | |
| 132 aboutAction = new AboutAction(); | |
| 133 showBookCountAction = new ShowBookCountAction(); | |
| 134 | |
| 135 addMenuBar(); | |
| 136 //addCoolBar(DWT.NONE); | |
| 137 addToolBar(DWT.FLAT); | |
| 138 addStatusLine(); | |
| 139 } | |
| 140 | |
| 141 /** | |
| 142 * Runs the application | |
| 143 */ | |
| 144 public void run() { | |
| 145 // Don't return from open() until window closes | |
| 146 setBlockOnOpen(true); | |
| 147 | |
| 148 // Open the main window | |
| 149 open(); | |
| 150 | |
| 151 // Dispose the display | |
| 152 Display.getCurrent().dispose(); | |
| 153 } | |
| 154 | |
| 155 /** | |
| 156 * Configures the shell | |
| 157 * | |
| 158 * @param shell the shell | |
| 159 */ | |
| 160 protected void configureShell(Shell shell) { | |
| 161 super.configureShell(shell); | |
| 162 | |
| 163 // Set the title bar text | |
| 164 shell.setText("Librarian"); | |
| 165 } | |
| 166 | |
| 167 /** | |
| 168 * Creates the main window's contents | |
| 169 * | |
| 170 * @param parent the main window | |
| 171 * @return Control | |
| 172 */ | |
| 173 protected Control createContents(Composite parent) { | |
| 174 Composite composite = new Composite(parent, DWT.NONE); | |
| 175 composite.setLayout(new GridLayout(1, false)); | |
| 176 | |
| 177 viewer = new TableViewer(composite, DWT.FULL_SELECTION | DWT.BORDER); | |
| 178 Table table = viewer.getTable(); | |
| 179 table.setLayoutData(new GridData(GridData.FILL_BOTH)); | |
| 180 | |
| 181 // Set up the viewer | |
| 182 viewer.setContentProvider(new LibraryContentProvider()); | |
| 183 viewer.setLabelProvider(new LibraryLabelProvider()); | |
| 184 viewer.setInput(library); | |
| 185 viewer.setColumnProperties(PROPS); | |
| 186 viewer.setCellEditors( [ cast(CellEditor) new TextCellEditor(table), | |
| 187 new CheckboxCellEditor(table), new TextCellEditor(table)]); | |
| 188 viewer.setCellModifier(new LibraryCellModifier()); | |
| 189 | |
| 190 // Set up the table | |
| 191 for (int i = 0, n = PROPS.length; i < n; i++) | |
| 192 (new TableColumn(table, DWT.LEFT)).setText(PROPS[i]); | |
| 193 table.setHeaderVisible(true); | |
| 194 table.setLinesVisible(true); | |
| 195 | |
| 196 // Add code to hide or display the book count based on the action | |
| 197 showBookCountAction.addPropertyChangeListener(new class IPropertyChangeListener { | |
| 198 public void propertyChange(PropertyChangeEvent event) { | |
| 199 // The value has changed; refresh the view | |
| 200 refreshView(); | |
| 201 } | |
| 202 }); | |
| 203 | |
| 204 // Rfresh the view to get the columns right-sized | |
| 205 refreshView(); | |
| 206 | |
| 207 return composite; | |
| 208 } | |
| 209 | |
| 210 /** | |
| 211 * Creates the menu for the application | |
| 212 * | |
| 213 * @return MenuManager | |
| 214 */ | |
| 215 protected MenuManager createMenuManager() { | |
| 216 // Create the main menu | |
| 217 MenuManager mm = new MenuManager(); | |
| 218 | |
| 219 // Create the File menu | |
| 220 MenuManager fileMenu = new MenuManager("File"); | |
| 221 mm.add(fileMenu); | |
| 222 | |
| 223 // Add the actions to the File menu | |
| 224 fileMenu.add(newAction); | |
| 225 fileMenu.add(openAction); | |
| 226 fileMenu.add(saveAction); | |
| 227 fileMenu.add(saveAsAction); | |
| 228 fileMenu.add(new Separator()); | |
| 229 fileMenu.add(exitAction); | |
| 230 | |
| 231 // Create the Book menu | |
| 232 MenuManager bookMenu = new MenuManager("Book"); | |
| 233 mm.add(bookMenu); | |
| 234 | |
| 235 // Add the actions to the Book menu | |
| 236 bookMenu.add(addBookAction); | |
| 237 bookMenu.add(removeBookAction); | |
| 238 | |
| 239 // Create the View menu | |
| 240 MenuManager viewMenu = new MenuManager("View"); | |
| 241 mm.add(viewMenu); | |
| 242 | |
| 243 // Add the actions to the View menu | |
| 244 viewMenu.add(showBookCountAction); | |
| 245 | |
| 246 // Create the Help menu | |
| 247 MenuManager helpMenu = new MenuManager("Help"); | |
| 248 mm.add(helpMenu); | |
| 249 | |
| 250 // Add the actions to the Help menu | |
| 251 helpMenu.add(aboutAction); | |
| 252 | |
| 253 return mm; | |
| 254 } | |
| 255 | |
| 256 /** | |
| 257 * Creates the toolbar for the application | |
| 258 */ | |
| 259 protected ToolBarManager createToolBarManager(int style) { | |
| 260 // Create the toolbar manager | |
| 261 ToolBarManager tbm = new ToolBarManager(style); | |
| 262 | |
| 263 // Add the file actions | |
| 264 tbm.add(newAction); | |
| 265 tbm.add(openAction); | |
| 266 tbm.add(saveAction); | |
| 267 tbm.add(saveAsAction); | |
| 268 | |
| 269 // Add a separator | |
| 270 tbm.add(new Separator()); | |
| 271 | |
| 272 // Add the book actions | |
| 273 tbm.add(addBookAction); | |
| 274 tbm.add(removeBookAction); | |
| 275 | |
| 276 // Add a separator | |
| 277 tbm.add(new Separator()); | |
| 278 | |
| 279 // Add the show book count, which will appear as a toggle button | |
| 280 tbm.add(showBookCountAction); | |
| 281 | |
| 282 // Add a separator | |
| 283 tbm.add(new Separator()); | |
| 284 | |
| 285 // Add the about action | |
| 286 tbm.add(aboutAction); | |
| 287 | |
| 288 return tbm; | |
| 289 } | |
| 290 /+ | |
| 291 /** | |
| 292 * Creates the coolbar for the application | |
| 293 */ | |
| 294 protected CoolBarManager createCoolBarManager(int style) { | |
| 295 // Create the coolbar manager | |
| 296 CoolBarManager cbm = new CoolBarManager(style); | |
| 297 | |
| 298 // Add the toolbar | |
| 299 cbm.add(createToolBarManager(DWT.FLAT)); | |
| 300 | |
| 301 return cbm; | |
| 302 } | |
| 303 +/ | |
| 304 /** | |
| 305 * Creates the status line manager | |
| 306 */ | |
| 307 protected StatusLineManager createStatusLineManager() { | |
| 308 return new StatusLineManager(); | |
| 309 } | |
| 310 | |
| 311 /** | |
| 312 * Adds a book | |
| 313 */ | |
| 314 public void addBook() { | |
| 315 library.add(new Book("[Enter Title]")); | |
| 316 refreshView(); | |
| 317 } | |
| 318 | |
| 319 /** | |
| 320 * Removes the selected book | |
| 321 */ | |
| 322 public void removeSelectedBook() { | |
| 323 Book book = cast(Book) (cast(IStructuredSelection) viewer.getSelection()) | |
| 324 .getFirstElement(); | |
| 325 if (book !is null) library.remove(book); | |
| 326 refreshView(); | |
| 327 } | |
| 328 | |
| 329 /** | |
| 330 * Opens a file | |
| 331 * | |
| 332 * @param fileName the file name | |
| 333 */ | |
| 334 public void openFile(String fileName) { | |
| 335 if (checkOverwrite()) { | |
| 336 // Disable the actions, so user can't change library while loading | |
| 337 enableActions(false); | |
| 338 | |
| 339 library = new Library(); | |
| 340 try { | |
| 341 // Launch the Open runnable | |
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342 ModalContext.run( dgIRunnableWithProgress( &internalOpen, fileName ), |
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343 true, getStatusLineManager().getProgressMonitor(), getShell().getDisplay()); |
| 66 | 344 } catch (InterruptedException e) { |
| 345 } catch (InvocationTargetException e) { | |
| 346 } finally { | |
| 347 // Enable actions | |
| 348 enableActions(true); | |
| 349 } | |
| 350 } | |
| 351 } | |
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352 private void internalOpen( IProgressMonitor progressMonitor,String filename ){ |
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353 try { |
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354 progressMonitor.beginTask("Loading", IProgressMonitor.UNKNOWN); |
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355 library.load(filename); |
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356 progressMonitor.done(); |
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357 viewer.setInput(library); |
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358 refreshView(); |
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359 } catch (IOException e) { |
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360 showError( Format("Can't load file {}\r{}", filename, e.msg)); |
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361 } |
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362 } |
| 66 | 363 /** |
| 364 * Creates a new file | |
| 365 */ | |
| 366 public void newFile() { | |
| 367 if (checkOverwrite()) { | |
| 368 library = new Library(); | |
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369 viewer.setInput(library); |
| 66 | 370 } |
| 371 } | |
| 372 | |
| 373 /** | |
| 374 * Saves the current file | |
| 375 */ | |
| 376 public void saveFile() { | |
| 377 String fileName = library.getFileName(); | |
| 378 if (fileName is null) { | |
| 379 fileName = (new SafeSaveDialog(getShell())).open(); | |
| 380 } | |
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381 if (fileName is null) { |
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382 return; |
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383 } |
| 66 | 384 saveFileAs(fileName); |
| 385 } | |
| 386 | |
| 387 /** | |
| 388 * Saves the current file using the specified file name | |
| 389 * | |
| 390 * @param fileName the file name | |
| 391 */ | |
| 392 public void saveFileAs(String fileName) { | |
| 393 // Disable the actions, so user can't change file while it's saving | |
| 394 enableActions(false); | |
| 395 try { | |
| 71 | 396 auto pm = getStatusLineManager().getProgressMonitor(); |
| 397 auto disp = getShell().getDisplay(); | |
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398 // Launch the Save runnable |
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399 ModalContext.run( dgIRunnableWithProgress( &internalSave, fileName ), true, pm, disp); |
| 71 | 400 |
| 66 | 401 } catch (InterruptedException e) { |
| 402 } catch (InvocationTargetException e) { | |
| 403 } finally { | |
| 404 // Enable the actions | |
| 405 enableActions(true); | |
| 406 } | |
| 407 } | |
| 408 | |
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409 private void internalSave(IProgressMonitor progressMonitor,String filename ){ |
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410 try { |
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411 progressMonitor.beginTask("Saving", IProgressMonitor.UNKNOWN ); |
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412 library.save(filename); |
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413 progressMonitor.done(); |
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414 } catch (IOException e) { |
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415 showError(Format("Can't save file {}\r{}", library.getFileName(), e.msg )); |
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416 } |
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417 } |
| 66 | 418 /** |
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419 * Shows an error |
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420 * |
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421 * @param msg the error |
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422 */ |
| 66 | 423 public void showError(String msg) { |
| 424 MessageDialog.openError(getShell(), "Error", msg); | |
| 425 } | |
| 426 | |
| 427 /** | |
| 428 * Refreshes the view | |
| 429 */ | |
| 430 public void refreshView() { | |
| 431 // Refresh the view | |
| 432 viewer.refresh(); | |
| 433 | |
| 434 // Repack the columns | |
| 435 for (int i = 0, n = viewer.getTable().getColumnCount(); i < n; i++) { | |
| 436 viewer.getTable().getColumn(i).pack(); | |
| 437 } | |
| 438 | |
| 439 getStatusLineManager().setMessage( | |
| 440 showBookCountAction.isChecked() ? Format( "Book Count: {}", | |
| 441 library.getBooks().size()) : ""); | |
| 442 } | |
| 443 | |
| 444 /** | |
| 445 * Checks the current file for unsaved changes. If it has unsaved changes, | |
| 446 * confirms that user wants to overwrite | |
| 447 * | |
| 448 * @return bool | |
| 449 */ | |
| 450 public bool checkOverwrite() { | |
| 451 bool proceed = true; | |
| 452 if (library.isDirty()) { | |
| 453 proceed = MessageDialog.openConfirm(getShell(), "Are you sure?", | |
| 454 "You have unsaved changes--are you sure you want to lose them?"); | |
| 455 } | |
| 456 return proceed; | |
| 457 } | |
| 458 | |
| 459 /** | |
| 460 * Sets the current library dirty | |
| 461 */ | |
| 462 public void setLibraryDirty() { | |
| 463 library.setDirty(); | |
| 464 } | |
| 465 | |
| 466 /** | |
| 467 * Closes the application | |
| 468 */ | |
| 469 public bool close() { | |
| 470 if (checkOverwrite()) return super.close(); | |
| 471 return false; | |
| 472 } | |
| 473 | |
| 474 /** | |
| 475 * Enables or disables the actions | |
| 476 * | |
| 477 * @param enable true to enable, false to disable | |
| 478 */ | |
| 479 private void enableActions(bool enable) { | |
| 480 newAction.setEnabled(enable); | |
| 481 openAction.setEnabled(enable); | |
| 482 saveAction.setEnabled(enable); | |
| 483 saveAsAction.setEnabled(enable); | |
| 484 exitAction.setEnabled(enable); | |
| 485 addBookAction.setEnabled(enable); | |
| 486 removeBookAction.setEnabled(enable); | |
| 487 aboutAction.setEnabled(enable); | |
| 488 showBookCountAction.setEnabled(enable); | |
| 489 } | |
| 490 } | |
| 491 | |
| 492 | |
| 493 /** | |
| 494 * This action class responds to requests to save a file | |
| 495 */ | |
| 496 public class SaveAction : Action { | |
| 497 /** | |
| 498 * SaveAction constructor | |
| 499 */ | |
| 500 public this() { | |
| 501 super("&Save@Ctrl+S", ImageDescriptor.createFromFile( getImportData!("jface.librarian.save.gif"))); | |
| 502 setDisabledImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.disabledSave.gif"))); | |
| 503 setToolTipText("Save"); | |
| 504 } | |
| 505 | |
| 506 /** | |
| 507 * Saves the file | |
| 508 */ | |
| 509 public void run() { | |
| 510 Librarian.getApp().saveFile(); | |
| 511 } | |
| 512 } | |
| 513 | |
| 514 | |
| 515 | |
| 516 | |
| 517 /** | |
| 518 * This action class responds to requests open a file | |
| 519 */ | |
| 520 public class OpenAction : Action { | |
| 521 /** | |
| 522 * OpenAction constructor | |
| 523 */ | |
| 524 public this() { | |
| 525 super("&Open...@Ctrl+O", ImageDescriptor.createFromFile(getImportData!("jface.librarian.open.gif"))); | |
| 526 setDisabledImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.disabledOpen.gif"))); | |
| 527 setToolTipText("Open"); | |
| 528 } | |
| 529 | |
| 530 /** | |
| 531 * Opens an existing file | |
| 532 */ | |
| 533 public void run() { | |
| 534 // Use the file dialog | |
| 535 FileDialog dlg = new FileDialog(Librarian.getApp().getShell(), DWT.OPEN); | |
| 536 String fileName = dlg.open(); | |
| 537 if (fileName !is null) { | |
| 538 Librarian.getApp().openFile(fileName); | |
| 539 } | |
| 540 } | |
| 541 } | |
| 542 | |
| 543 /** | |
| 544 * This action class reponds to requests for a new file | |
| 545 */ | |
| 546 public class NewAction : Action { | |
| 547 /** | |
| 548 * NewAction constructor | |
| 549 */ | |
| 550 public this() { | |
| 551 super("&New@Ctrl+N", ImageDescriptor.createFromFile(getImportData!("jface.librarian.new.gif"))); | |
| 552 setDisabledImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.disabledNew.gif"))); | |
| 553 setToolTipText("New"); | |
| 554 } | |
| 555 | |
| 556 /** | |
| 557 * Creates a new file | |
| 558 */ | |
| 559 public void run() { | |
| 560 Librarian.getApp().newFile(); | |
| 561 } | |
| 562 } | |
| 563 | |
| 564 /** | |
| 565 * This action class responds to requests to save a file as . . . | |
| 566 */ | |
| 567 public class SaveAsAction : Action { | |
| 568 /** | |
| 569 * SaveAsAction constructor | |
| 570 */ | |
| 571 public this() { | |
| 572 super("Save As...", ImageDescriptor.createFromFile(getImportData!("jface.librarian.saveAs.gif"))); | |
| 573 setDisabledImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.disabledSaveAs.gif"))); | |
| 574 setToolTipText("Save As"); | |
| 575 } | |
| 576 | |
| 577 /** | |
| 578 * Saves the file | |
| 579 */ | |
| 580 public void run() { | |
| 581 SafeSaveDialog dlg = new SafeSaveDialog(Librarian.getApp().getShell()); | |
| 582 String fileName = dlg.open(); | |
| 583 if (fileName !is null) { | |
|
72
fc7a8f537871
Open/Save with experimental runner factory.
Frank Benoit <benoit@tionex.de>
parents:
71
diff
changeset
|
584 Librarian.getApp().saveFileAs(fileName); |
| 66 | 585 } |
| 586 } | |
| 587 } | |
| 588 | |
| 589 | |
| 590 /** | |
| 591 * This action class deletes a book | |
| 592 */ | |
| 593 public class RemoveBookAction : Action { | |
| 594 /** | |
| 595 * RemoveBookAction constructor | |
| 596 */ | |
| 597 public this() { | |
| 598 super("&Remove Book@Ctrl+X", ImageDescriptor.createFromFile(getImportData!("jface.librarian.removeBook.gif"))); | |
| 599 setDisabledImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.disabledRemoveBook.gif"))); | |
| 600 setToolTipText("Remove"); | |
| 601 } | |
| 602 | |
| 603 /** | |
| 604 * Removes the selected book after confirming | |
| 605 */ | |
| 606 public void run() { | |
| 607 if (MessageDialog.openConfirm(Librarian.getApp().getShell(), "Are you sure?", | |
| 608 "Are you sure you want to remove the selected book?")) { | |
| 609 Librarian.getApp().removeSelectedBook(); | |
| 610 } | |
| 611 } | |
| 612 } | |
| 613 | |
| 614 | |
| 615 /** | |
| 616 * This action class adds a book | |
| 617 */ | |
| 618 public class AddBookAction : Action { | |
| 619 /** | |
| 620 * AddBookAction constructor | |
| 621 */ | |
| 622 public this() { | |
| 623 super("&Add Book@Ctrl+B", ImageDescriptor.createFromFile(getImportData!("jface.librarian.addBook.gif"))); | |
| 624 setDisabledImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.disabledAddBook.gif"))); | |
| 625 setToolTipText("Add"); | |
| 626 } | |
| 627 | |
| 628 /** | |
| 629 * Adds a book to the current library | |
| 630 */ | |
| 631 public void run() { | |
| 632 Librarian.getApp().addBook(); | |
| 633 } | |
| 634 } | |
| 635 | |
| 636 /** | |
| 637 * This action class exits the application | |
| 638 */ | |
| 639 public class ExitAction : Action { | |
| 640 /** | |
| 641 * ExitAction constructor | |
| 642 */ | |
| 643 public this() { | |
| 644 super("E&xit@Alt+F4"); | |
| 645 setToolTipText("Exit"); | |
| 646 } | |
| 647 | |
| 648 /** | |
| 649 * Exits the application | |
| 650 */ | |
| 651 public void run() { | |
| 652 Librarian.getApp().close(); | |
| 653 } | |
| 654 } | |
| 655 | |
| 656 /** | |
| 657 * This action class shows an About box | |
| 658 */ | |
| 659 public class AboutAction : Action { | |
| 660 /** | |
| 661 * AboutAction constructor | |
| 662 */ | |
| 663 public this() { | |
| 664 super("&About@Ctrl+A", ImageDescriptor.createFromFile(getImportData!("jface.librarian.about.gif"))); | |
| 665 setDisabledImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.disabledAbout.gif"))); | |
| 666 setToolTipText("About"); | |
| 667 } | |
| 668 | |
| 669 /** | |
| 670 * Shows an about box | |
| 671 */ | |
| 672 public void run() { | |
| 673 MessageDialog.openInformation(Librarian.getApp().getShell(), "About", | |
| 674 "Librarian--to manage your books"); | |
| 675 } | |
| 676 } | |
| 677 | |
| 678 | |
| 679 | |
| 680 /** | |
| 681 * This action class determines whether to show the book count | |
| 682 */ | |
| 683 public class ShowBookCountAction : Action { | |
| 684 public this() { | |
| 685 super("&Show Book Count@Ctrl+C", IAction.AS_CHECK_BOX); | |
| 686 setChecked(true); | |
| 687 setImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.count.gif"))); | |
| 688 setDisabledImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.disabledCount.gif"))); | |
| 689 } | |
| 690 } | |
| 691 | |
| 692 /** | |
| 693 * This class represents a book | |
| 694 */ | |
| 695 public class Book { | |
| 696 private String title; | |
| 697 private String checkedOutTo; | |
| 698 | |
| 699 /** | |
| 700 * Book constructor | |
| 701 * @param title the title | |
| 702 */ | |
| 703 public this(String title) { | |
| 704 setTitle(title); | |
| 705 } | |
| 706 | |
| 707 /** | |
| 708 * Sets the title | |
| 709 * @param title the title | |
| 710 */ | |
| 711 public void setTitle(String title) { | |
| 712 this.title = title; | |
| 713 } | |
| 714 | |
| 715 /** | |
| 716 * Gets the title | |
| 717 * @return String | |
| 718 */ | |
| 719 public String getTitle() { | |
| 720 return title; | |
| 721 } | |
| 722 | |
| 723 /** | |
| 724 * Check out | |
| 725 * @param who the person checking this book out | |
| 726 */ | |
| 727 public void checkOut(String who) { | |
| 728 checkedOutTo = who; | |
| 729 if (checkedOutTo.length is 0) checkedOutTo = null; | |
| 730 } | |
| 731 | |
| 732 public bool isCheckedOut() { | |
| 733 return checkedOutTo !is null && checkedOutTo.length > 0; | |
| 734 } | |
| 735 | |
| 736 public void checkIn() { | |
| 737 checkedOutTo = null; | |
| 738 } | |
| 739 | |
| 740 /** | |
| 741 * Gets who this book is checked out to | |
| 742 * @return String | |
| 743 */ | |
| 744 public String getCheckedOutTo() { | |
| 745 return checkedOutTo; | |
| 746 } | |
| 747 } | |
| 748 | |
| 749 | |
| 750 /** | |
| 751 * This class provides a facade for the "save" | |
| 752 * FileDialog class. If the selected file already | |
| 753 * exists, the user is asked to confirm before | |
| 754 * overwriting. | |
| 755 */ | |
| 756 public class SafeSaveDialog | |
| 757 { | |
| 758 // The wrapped FileDialog | |
| 759 private FileDialog dlg; | |
| 760 | |
| 761 /** | |
| 762 * SafeSaveDialog constructor | |
| 763 * @param shell the parent shell | |
| 764 */ | |
| 765 public this(Shell shell) | |
| 766 { | |
| 767 dlg = new FileDialog(shell, DWT.SAVE); | |
| 768 } | |
| 769 | |
| 770 public String open() | |
| 771 { | |
| 772 // We store the selected file name in fileName | |
| 773 String fileName = null; | |
| 774 | |
| 775 // The user has finished when one of the | |
| 776 // following happens: | |
| 777 // 1) The user dismisses the dialog by pressing Cancel | |
| 778 // 2) The selected file name does not exist | |
| 779 // 3) The user agrees to overwrite existing file | |
| 780 bool done = false; | |
| 781 | |
| 782 while (!done) | |
| 783 { | |
| 784 // Open the File Dialog | |
| 785 fileName = dlg.open(); | |
| 786 if (fileName is null) | |
| 787 { | |
| 788 // User has cancelled, so quit and return | |
| 789 done = true; | |
| 790 } | |
| 791 else | |
| 792 { | |
| 793 // User has selected a file; see if it already exists | |
| 794 FilePath file = new FilePath(fileName); | |
| 795 if (file.exists()) | |
| 796 { | |
| 797 // The file already exists; asks for confirmation | |
| 798 MessageBox mb = new MessageBox(dlg.getParent(), | |
| 799 DWT.ICON_WARNING | DWT.YES | DWT.NO); | |
| 800 | |
| 801 // We really should read this string from a | |
| 802 // resource bundle | |
| 803 mb.setMessage(fileName ~ " already exists. Do you want to replace it?"); | |
| 804 | |
| 805 // If they click Yes, we're done and we drop out. If | |
| 806 // they click No, we redisplay the File Dialog | |
| 807 done = mb.open() is DWT.YES; | |
| 808 } | |
| 809 else | |
| 810 { | |
| 811 // File does not exist, so drop out | |
| 812 done = true; | |
| 813 } | |
| 814 } | |
| 815 } | |
| 816 return fileName; | |
| 817 } | |
| 818 | |
| 819 public String getFileName() | |
| 820 { | |
| 821 return dlg.getFileName(); | |
| 822 } | |
| 823 | |
| 824 public String[] getFileNames() | |
| 825 { | |
| 826 return dlg.getFileNames(); | |
| 827 } | |
| 828 | |
| 829 public String[] getFilterExtensions() | |
| 830 { | |
| 831 return dlg.getFilterExtensions(); | |
| 832 } | |
| 833 | |
| 834 public String[] getFilterNames() | |
| 835 { | |
| 836 return dlg.getFilterNames(); | |
| 837 } | |
| 838 | |
| 839 public String getFilterPath() | |
| 840 { | |
| 841 return dlg.getFilterPath(); | |
| 842 } | |
| 843 | |
| 844 public void setFileName(String string) | |
| 845 { | |
| 846 dlg.setFileName(string); | |
| 847 } | |
| 848 | |
| 849 public void setFilterExtensions(String[] extensions) | |
| 850 { | |
| 851 dlg.setFilterExtensions(extensions); | |
| 852 } | |
| 853 | |
| 854 public void setFilterNames(String[] names) | |
| 855 { | |
| 856 dlg.setFilterNames(names); | |
| 857 } | |
| 858 | |
| 859 public void setFilterPath(String string) | |
| 860 { | |
| 861 dlg.setFilterPath(string); | |
| 862 } | |
| 863 | |
| 864 public Shell getParent() | |
| 865 { | |
| 866 return dlg.getParent(); | |
| 867 } | |
| 868 | |
| 869 public int getStyle() | |
| 870 { | |
| 871 return dlg.getStyle(); | |
| 872 } | |
| 873 | |
| 874 public String getText() | |
| 875 { | |
| 876 return dlg.getText(); | |
| 877 } | |
| 878 | |
| 879 public void setText(String string) | |
| 880 { | |
| 881 dlg.setText(string); | |
| 882 } | |
| 883 } | |
| 884 | |
| 885 | |
| 886 /** | |
| 887 * This class is the cell modifier for the Librarian program | |
| 888 */ | |
| 889 public class LibraryCellModifier : ICellModifier { | |
| 890 /** | |
| 891 * Gets whether the specified property can be modified | |
| 892 * | |
| 893 * @param element the book | |
| 894 * @param property the property | |
| 895 * @return bool | |
| 896 */ | |
| 897 public bool canModify(Object element, String property) { | |
| 898 return true; | |
| 899 } | |
| 900 | |
| 901 /** | |
| 902 * Gets the value for the property | |
| 903 * | |
| 904 * @param element the book | |
| 905 * @param property the property | |
| 906 * @return Object | |
| 907 */ | |
| 908 public Object getValue(Object element, String property) { | |
| 909 Book book = cast(Book) element; | |
| 910 if (Librarian.TITLE.equals(property)) | |
| 911 return stringcast(book.getTitle()); | |
| 912 else if (Librarian.CHECKED_OUT.equals(property)) | |
| 913 return Boolean.valueOf(book.isCheckedOut()); | |
| 914 else if (Librarian.WHO.equals(property)) | |
| 915 return stringcast( book.getCheckedOutTo() is null ? "" : book.getCheckedOutTo()); | |
| 916 else | |
| 917 return null; | |
| 918 } | |
| 919 | |
| 920 /** | |
| 921 * Modifies the element | |
| 922 * | |
| 923 * @param element the book | |
| 924 * @param property the property | |
| 925 * @param value the new value | |
| 926 */ | |
| 927 public void modify(Object element, String property, Object value) { | |
| 928 if ( auto item = cast(Item)element ){ | |
| 929 element = item.getData(); | |
| 930 } | |
| 931 | |
| 932 Book book = cast(Book) element; | |
| 933 if (Librarian.TITLE.equals(property)) | |
| 934 book.setTitle(stringcast(value)); | |
| 935 else if (Librarian.CHECKED_OUT.equals(property)) { | |
| 936 bool b = (cast(Boolean) value).booleanValue(); | |
| 937 if (b) | |
| 938 book.checkOut("[Enter Name]"); | |
| 939 else | |
| 940 book.checkIn(); | |
| 941 } else if (Librarian.WHO.equals(property)) | |
| 942 book.checkOut(stringcast(value)); | |
| 943 | |
| 944 // Refresh the view | |
| 945 Librarian.getApp().refreshView(); | |
| 946 | |
| 947 // Set the library dirty | |
| 948 Librarian.getApp().setLibraryDirty(); | |
| 949 } | |
| 950 } | |
| 951 | |
| 952 /** | |
| 953 * This class holds all the books in a library. It also handles loading from and | |
| 954 * saving to disk | |
| 955 */ | |
| 956 public class Library { | |
| 957 private static const String SEP = "|"; | |
| 958 | |
| 959 // The filename | |
| 960 private String filename; | |
| 961 | |
| 962 // The books | |
| 963 private LinkSeq!(Book) books; | |
| 964 | |
| 965 // The dirty flag | |
| 966 private bool dirty; | |
| 967 | |
| 968 /** | |
| 969 * Library constructor Note the signature :-) | |
| 970 */ | |
| 971 public this() { | |
| 972 books = new LinkSeq!(Book); | |
| 973 } | |
| 974 | |
| 975 /** | |
| 976 * Loads the library from a file | |
| 977 * | |
| 978 * @param filename the filename | |
| 979 * @throws IOException | |
| 980 */ | |
| 981 public void load(String filename) { | |
| 982 auto istr = (new FileInput(filename)).input; | |
| 983 auto lines = new LineIterator!(char)(istr); | |
| 984 String line; | |
| 985 foreach (line; lines ) { | |
| 986 auto tokens = tango.text.Util.delimit(line, SEP); | |
| 987 Book book = null; | |
| 988 if ( tokens.length > 0 ) book = new Book( tokens[0].dup ); | |
| 989 if (tokens.length > 1) book.checkOut(tokens[1].dup ); | |
| 990 if (book !is null) add(book); | |
| 991 } | |
| 992 istr.close(); | |
| 993 this.filename = filename; | |
| 994 dirty = false; | |
| 995 } | |
| 996 | |
| 997 /** | |
| 998 * Saves the library to a file | |
| 999 * | |
| 1000 * @param filename the filename | |
| 1001 * @throws IOException | |
| 1002 */ | |
| 1003 public void save(String filename) { | |
| 1004 scope ostr = (new FileOutput(filename)).output; | |
| 1005 scope printer = new Print!(char)( Format, ostr ); | |
| 1006 foreach ( book; books ) { | |
| 1007 printer.formatln( "{}|{}",book.getTitle(), (book.getCheckedOutTo() is null ? "" : book.getCheckedOutTo())); | |
| 1008 } | |
| 1009 ostr.close(); | |
| 1010 this.filename = filename; | |
| 1011 dirty = false; | |
| 1012 } | |
| 1013 | |
| 1014 /** | |
| 1015 * Adds a book | |
| 1016 * | |
| 1017 * @param book the book to add | |
| 1018 * @return bool | |
| 1019 */ | |
| 1020 public bool add(Book book) { | |
| 1021 books.append(book); | |
| 1022 setDirty(); | |
| 1023 return true; | |
| 1024 } | |
| 1025 | |
| 1026 /** | |
| 1027 * Removes a book | |
| 1028 * | |
| 1029 * @param book the book to remove | |
| 1030 */ | |
| 1031 public void remove(Book book) { | |
| 1032 books.remove(book); | |
| 1033 setDirty(); | |
| 1034 } | |
| 1035 | |
| 1036 /** | |
| 1037 * Gets the books | |
| 1038 * | |
| 1039 * @return Collection | |
| 1040 */ | |
| 1041 public LinkSeq!(Book) getBooks() { | |
| 1042 return books; | |
| 1043 } | |
| 1044 | |
| 1045 /** | |
| 1046 * Gets the file name | |
| 1047 * | |
| 1048 * @return String | |
| 1049 */ | |
| 1050 public String getFileName() { | |
| 1051 return filename; | |
| 1052 } | |
| 1053 | |
| 1054 /** | |
| 1055 * Gets whether this file is dirty | |
| 1056 * | |
| 1057 * @return bool | |
| 1058 */ | |
| 1059 public bool isDirty() { | |
| 1060 return dirty; | |
| 1061 } | |
| 1062 | |
| 1063 /** | |
| 1064 * Sets this file as dirty | |
| 1065 */ | |
| 1066 public void setDirty() { | |
| 1067 dirty = true; | |
| 1068 } | |
| 1069 } | |
| 1070 | |
| 1071 | |
| 1072 /** | |
| 1073 * This class provides the content for the library table | |
| 1074 */ | |
| 1075 public class LibraryContentProvider : IStructuredContentProvider { | |
| 1076 /** | |
| 1077 * Gets the books | |
| 1078 * | |
| 1079 * @param inputElement the library | |
| 1080 * @return Object[] | |
| 1081 */ | |
| 1082 public Object[] getElements(Object inputElement) { | |
| 1083 return (cast(Library) inputElement).getBooks().toArray(); | |
| 1084 } | |
| 1085 | |
| 1086 /** | |
| 1087 * Disposes any resources | |
| 1088 */ | |
| 1089 public void dispose() { | |
| 1090 // Do nothing | |
| 1091 } | |
| 1092 | |
| 1093 /** | |
| 1094 * Called when the input changes | |
| 1095 * | |
| 1096 * @param viewer the viewer | |
| 1097 * @param oldInput the old library | |
| 1098 * @param newInput the new library | |
| 1099 */ | |
| 1100 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { | |
| 1101 // Ignore | |
| 1102 } | |
| 1103 } | |
| 1104 | |
| 1105 | |
| 1106 /** | |
| 1107 * This class provides the labels for the library table | |
| 1108 */ | |
| 1109 public class LibraryLabelProvider : ITableLabelProvider { | |
| 1110 private Image checked; | |
| 1111 private Image unchecked; | |
| 1112 | |
| 1113 /** | |
| 1114 * LibraryLabelProvider constructor | |
| 1115 */ | |
| 1116 public this() { | |
| 1117 // Create the check mark images | |
| 1118 checked = new Image(null, new ImageData( new ByteArrayInputStream( cast(byte[])import("jface.librarian.checked.gif")))); | |
| 1119 unchecked = new Image(null,new ImageData( new ByteArrayInputStream( cast(byte[])import("jface.librarian.unchecked.gif")))); | |
| 1120 } | |
| 1121 | |
| 1122 /** | |
| 1123 * Gets the column image | |
| 1124 * | |
| 1125 * @param element the book | |
| 1126 * @param columnIndex the column index | |
| 1127 * @return Image | |
| 1128 */ | |
| 1129 public Image getColumnImage(Object element, int columnIndex) { | |
| 1130 // For the "Checked Out" column, return the check mark | |
| 1131 // if the book is checked out | |
| 1132 if (columnIndex is 1) | |
| 1133 return (cast(Book) element).isCheckedOut() ? checked : unchecked; | |
| 1134 return null; | |
| 1135 } | |
| 1136 | |
| 1137 /** | |
| 1138 * Gets the column text | |
| 1139 * | |
| 1140 * @param element the book | |
| 1141 * @param columnIndex the column index | |
| 1142 * @return String | |
| 1143 */ | |
| 1144 public String getColumnText(Object element, int columnIndex) { | |
| 1145 Book book = cast(Book) element; | |
| 1146 String text = null; | |
| 1147 switch (columnIndex) { | |
| 1148 case 0: | |
| 1149 text = book.getTitle(); | |
| 1150 break; | |
| 1151 case 2: | |
| 1152 text = book.getCheckedOutTo(); | |
| 1153 break; | |
| 1154 default: | |
| 1155 } | |
| 1156 return text is null ? "" : text; | |
| 1157 } | |
| 1158 | |
| 1159 /** | |
| 1160 * Adds a listener | |
| 1161 */ | |
| 1162 public void addListener(ILabelProviderListener listener) { | |
| 1163 // Ignore | |
| 1164 } | |
| 1165 | |
| 1166 /** | |
| 1167 * Disposes any resources | |
| 1168 */ | |
| 1169 public void dispose() { | |
| 1170 if (checked !is null) checked.dispose(); | |
| 1171 if (unchecked !is null) unchecked.dispose(); | |
| 1172 } | |
| 1173 | |
| 1174 /** | |
| 1175 * Gets whether this is a label property | |
| 1176 * | |
| 1177 * @param element the book | |
| 1178 * @param property the property | |
| 1179 * @return bool | |
| 1180 */ | |
| 1181 public bool isLabelProperty(Object element, String property) { | |
| 1182 return false; | |
| 1183 } | |
| 1184 | |
| 1185 /** | |
| 1186 * Removes a listener | |
| 1187 * | |
| 1188 * @param listener the listener | |
| 1189 */ | |
| 1190 public void removeListener(ILabelProviderListener listener) { | |
| 1191 // Ignore | |
| 1192 } | |
| 1193 } | |
| 1194 | |
| 1195 | |
| 1196 | |
| 1197 | |
| 1198 | |
| 1199 |