Mercurial > projects > dwt-samples
annotate jface/Librarian.d @ 143:42c3056512ba
redirect the jface examples to the new collection wrappers
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Thu, 07 Aug 2008 22:21:50 +0200 |
| parents | 9ff9b8f7284b |
| children |
| 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.io.FilePath; | |
| 50 import tango.io.File; | |
| 51 import tango.io.Print; | |
| 52 import tango.io.stream.FileStream; | |
| 53 import tango.text.Util; | |
| 54 import tango.text.stream.LineIterator; | |
| 55 import tango.util.log.Trace; | |
|
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56 import dwtx.dwtxhelper.Collection; |
| 66 | 57 |
| 67 | 58 version(JIVE) import jive.stacktrace; |
| 59 | |
| 66 | 60 /** |
| 61 * The application entry point | |
| 62 * | |
| 63 * @param args the command line arguments | |
| 64 */ | |
| 65 void main() { | |
| 66 (new Librarian()).run(); | |
| 67 } | |
| 68 | |
| 69 | |
| 70 /** | |
| 71 * This class keeps track of you library, and who you've loaned books to | |
| 72 */ | |
| 73 public class Librarian : ApplicationWindow { | |
| 74 // A static instance to the running application | |
| 75 private static Librarian APP; | |
| 76 | |
| 77 // Table column names/properties | |
| 78 public static const String TITLE = "Title"; | |
| 79 public static const String CHECKED_OUT = "?"; | |
| 80 public static const String WHO = "By Whom"; | |
| 81 public static const String[] PROPS = [ TITLE, CHECKED_OUT, WHO ]; | |
| 82 | |
| 83 // The viewer | |
| 84 private TableViewer viewer; | |
| 85 | |
| 86 // The current library | |
| 87 private Library library; | |
| 88 | |
| 89 // The actions | |
| 90 private NewAction newAction; | |
| 91 private OpenAction openAction; | |
| 92 private SaveAction saveAction; | |
| 93 private SaveAsAction saveAsAction; | |
| 94 private ExitAction exitAction; | |
| 95 private AddBookAction addBookAction; | |
| 96 private RemoveBookAction removeBookAction; | |
| 97 private AboutAction aboutAction; | |
| 98 private ShowBookCountAction showBookCountAction; | |
| 99 | |
| 100 /** | |
| 101 * Gets the running application | |
| 102 */ | |
| 103 public static Librarian getApp() { | |
| 104 return APP; | |
| 105 } | |
| 106 | |
| 107 /** | |
| 108 * Librarian constructor | |
| 109 */ | |
| 110 public this() { | |
| 111 super(null); | |
| 112 | |
| 113 APP = this; | |
| 114 | |
| 115 // Create the data model | |
| 116 library = new Library(); | |
| 117 | |
| 118 // Create the actions | |
| 119 newAction = new NewAction(); | |
| 120 openAction = new OpenAction(); | |
| 121 saveAction = new SaveAction(); | |
| 122 saveAsAction = new SaveAsAction(); | |
| 123 exitAction = new ExitAction(); | |
| 124 addBookAction = new AddBookAction(); | |
| 125 removeBookAction = new RemoveBookAction(); | |
| 126 aboutAction = new AboutAction(); | |
| 127 showBookCountAction = new ShowBookCountAction(); | |
| 128 | |
| 129 addMenuBar(); | |
| 130 //addCoolBar(DWT.NONE); | |
| 131 addToolBar(DWT.FLAT); | |
| 132 addStatusLine(); | |
| 133 } | |
| 134 | |
| 135 /** | |
| 136 * Runs the application | |
| 137 */ | |
| 138 public void run() { | |
| 139 // Don't return from open() until window closes | |
| 140 setBlockOnOpen(true); | |
| 141 | |
| 142 // Open the main window | |
| 143 open(); | |
| 144 | |
| 145 // Dispose the display | |
| 146 Display.getCurrent().dispose(); | |
| 147 } | |
| 148 | |
| 149 /** | |
| 150 * Configures the shell | |
| 151 * | |
| 152 * @param shell the shell | |
| 153 */ | |
| 154 protected void configureShell(Shell shell) { | |
| 155 super.configureShell(shell); | |
| 156 | |
| 157 // Set the title bar text | |
| 158 shell.setText("Librarian"); | |
| 159 } | |
| 160 | |
| 161 /** | |
| 162 * Creates the main window's contents | |
| 163 * | |
| 164 * @param parent the main window | |
| 165 * @return Control | |
| 166 */ | |
| 167 protected Control createContents(Composite parent) { | |
| 168 Composite composite = new Composite(parent, DWT.NONE); | |
| 169 composite.setLayout(new GridLayout(1, false)); | |
| 170 | |
| 171 viewer = new TableViewer(composite, DWT.FULL_SELECTION | DWT.BORDER); | |
| 172 Table table = viewer.getTable(); | |
| 173 table.setLayoutData(new GridData(GridData.FILL_BOTH)); | |
| 174 | |
| 175 // Set up the viewer | |
| 176 viewer.setContentProvider(new LibraryContentProvider()); | |
| 177 viewer.setLabelProvider(new LibraryLabelProvider()); | |
| 178 viewer.setInput(library); | |
| 179 viewer.setColumnProperties(PROPS); | |
| 180 viewer.setCellEditors( [ cast(CellEditor) new TextCellEditor(table), | |
| 181 new CheckboxCellEditor(table), new TextCellEditor(table)]); | |
| 182 viewer.setCellModifier(new LibraryCellModifier()); | |
| 183 | |
| 184 // Set up the table | |
| 185 for (int i = 0, n = PROPS.length; i < n; i++) | |
| 186 (new TableColumn(table, DWT.LEFT)).setText(PROPS[i]); | |
| 187 table.setHeaderVisible(true); | |
| 188 table.setLinesVisible(true); | |
| 189 | |
| 190 // Add code to hide or display the book count based on the action | |
| 191 showBookCountAction.addPropertyChangeListener(new class IPropertyChangeListener { | |
| 192 public void propertyChange(PropertyChangeEvent event) { | |
| 193 // The value has changed; refresh the view | |
| 194 refreshView(); | |
| 195 } | |
| 196 }); | |
| 197 | |
| 198 // Rfresh the view to get the columns right-sized | |
| 199 refreshView(); | |
| 200 | |
| 201 return composite; | |
| 202 } | |
| 203 | |
| 204 /** | |
| 205 * Creates the menu for the application | |
| 206 * | |
| 207 * @return MenuManager | |
| 208 */ | |
| 209 protected MenuManager createMenuManager() { | |
| 210 // Create the main menu | |
| 211 MenuManager mm = new MenuManager(); | |
| 212 | |
| 213 // Create the File menu | |
| 214 MenuManager fileMenu = new MenuManager("File"); | |
| 215 mm.add(fileMenu); | |
| 216 | |
| 217 // Add the actions to the File menu | |
| 218 fileMenu.add(newAction); | |
| 219 fileMenu.add(openAction); | |
| 220 fileMenu.add(saveAction); | |
| 221 fileMenu.add(saveAsAction); | |
| 222 fileMenu.add(new Separator()); | |
| 223 fileMenu.add(exitAction); | |
| 224 | |
| 225 // Create the Book menu | |
| 226 MenuManager bookMenu = new MenuManager("Book"); | |
| 227 mm.add(bookMenu); | |
| 228 | |
| 229 // Add the actions to the Book menu | |
| 230 bookMenu.add(addBookAction); | |
| 231 bookMenu.add(removeBookAction); | |
| 232 | |
| 233 // Create the View menu | |
| 234 MenuManager viewMenu = new MenuManager("View"); | |
| 235 mm.add(viewMenu); | |
| 236 | |
| 237 // Add the actions to the View menu | |
| 238 viewMenu.add(showBookCountAction); | |
| 239 | |
| 240 // Create the Help menu | |
| 241 MenuManager helpMenu = new MenuManager("Help"); | |
| 242 mm.add(helpMenu); | |
| 243 | |
| 244 // Add the actions to the Help menu | |
| 245 helpMenu.add(aboutAction); | |
| 246 | |
| 247 return mm; | |
| 248 } | |
| 249 | |
| 250 /** | |
| 251 * Creates the toolbar for the application | |
| 252 */ | |
| 253 protected ToolBarManager createToolBarManager(int style) { | |
| 254 // Create the toolbar manager | |
| 255 ToolBarManager tbm = new ToolBarManager(style); | |
| 256 | |
| 257 // Add the file actions | |
| 258 tbm.add(newAction); | |
| 259 tbm.add(openAction); | |
| 260 tbm.add(saveAction); | |
| 261 tbm.add(saveAsAction); | |
| 262 | |
| 263 // Add a separator | |
| 264 tbm.add(new Separator()); | |
| 265 | |
| 266 // Add the book actions | |
| 267 tbm.add(addBookAction); | |
| 268 tbm.add(removeBookAction); | |
| 269 | |
| 270 // Add a separator | |
| 271 tbm.add(new Separator()); | |
| 272 | |
| 273 // Add the show book count, which will appear as a toggle button | |
| 274 tbm.add(showBookCountAction); | |
| 275 | |
| 276 // Add a separator | |
| 277 tbm.add(new Separator()); | |
| 278 | |
| 279 // Add the about action | |
| 280 tbm.add(aboutAction); | |
| 281 | |
| 282 return tbm; | |
| 283 } | |
| 284 /+ | |
| 285 /** | |
| 286 * Creates the coolbar for the application | |
| 287 */ | |
| 288 protected CoolBarManager createCoolBarManager(int style) { | |
| 289 // Create the coolbar manager | |
| 290 CoolBarManager cbm = new CoolBarManager(style); | |
| 291 | |
| 292 // Add the toolbar | |
| 293 cbm.add(createToolBarManager(DWT.FLAT)); | |
| 294 | |
| 295 return cbm; | |
| 296 } | |
| 297 +/ | |
| 298 /** | |
| 299 * Creates the status line manager | |
| 300 */ | |
| 301 protected StatusLineManager createStatusLineManager() { | |
| 302 return new StatusLineManager(); | |
| 303 } | |
| 304 | |
| 305 /** | |
| 306 * Adds a book | |
| 307 */ | |
| 308 public void addBook() { | |
| 309 library.add(new Book("[Enter Title]")); | |
| 310 refreshView(); | |
| 311 } | |
| 312 | |
| 313 /** | |
| 314 * Removes the selected book | |
| 315 */ | |
| 316 public void removeSelectedBook() { | |
| 317 Book book = cast(Book) (cast(IStructuredSelection) viewer.getSelection()) | |
| 318 .getFirstElement(); | |
| 319 if (book !is null) library.remove(book); | |
| 320 refreshView(); | |
| 321 } | |
| 322 | |
| 323 /** | |
| 324 * Opens a file | |
| 325 * | |
| 326 * @param fileName the file name | |
| 327 */ | |
| 328 public void openFile(String fileName) { | |
| 329 if (checkOverwrite()) { | |
| 330 // Disable the actions, so user can't change library while loading | |
| 331 enableActions(false); | |
| 332 | |
| 333 library = new Library(); | |
| 334 try { | |
| 335 // Launch the Open runnable | |
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336 ModalContext.run( dgIRunnableWithProgress( &internalOpen, fileName ), |
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337 true, getStatusLineManager().getProgressMonitor(), getShell().getDisplay()); |
| 66 | 338 } catch (InterruptedException e) { |
| 339 } catch (InvocationTargetException e) { | |
| 340 } finally { | |
| 341 // Enable actions | |
| 342 enableActions(true); | |
| 343 } | |
| 344 } | |
| 345 } | |
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346 private void internalOpen( IProgressMonitor progressMonitor,String filename ){ |
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347 try { |
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348 progressMonitor.beginTask("Loading", IProgressMonitor.UNKNOWN); |
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349 library.load(filename); |
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350 progressMonitor.done(); |
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351 viewer.setInput(library); |
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352 refreshView(); |
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353 } catch (IOException e) { |
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354 showError( Format("Can't load file {}\r{}", filename, e.msg)); |
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355 } |
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356 } |
| 66 | 357 /** |
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358 * Creates a new file |
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359 */ |
| 66 | 360 public void newFile() { |
| 361 if (checkOverwrite()) { | |
| 362 library = new Library(); | |
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363 viewer.setInput(library); |
| 66 | 364 } |
| 365 } | |
| 366 | |
| 367 /** | |
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368 * Saves the current file |
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369 */ |
| 66 | 370 public void saveFile() { |
| 371 String fileName = library.getFileName(); | |
| 372 if (fileName is null) { | |
| 373 fileName = (new SafeSaveDialog(getShell())).open(); | |
| 374 } | |
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375 if (fileName is null) { |
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376 return; |
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377 } |
| 66 | 378 saveFileAs(fileName); |
| 379 } | |
| 380 | |
| 381 /** | |
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382 * Saves the current file using the specified file name |
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383 * |
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384 * @param fileName the file name |
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385 */ |
| 66 | 386 public void saveFileAs(String fileName) { |
| 387 // Disable the actions, so user can't change file while it's saving | |
| 388 enableActions(false); | |
| 389 try { | |
| 71 | 390 auto pm = getStatusLineManager().getProgressMonitor(); |
| 391 auto disp = getShell().getDisplay(); | |
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392 // Launch the Save runnable |
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393 ModalContext.run( dgIRunnableWithProgress( &internalSave, fileName ), true, pm, disp); |
| 71 | 394 |
| 66 | 395 } catch (InterruptedException e) { |
| 396 } catch (InvocationTargetException e) { | |
| 397 } finally { | |
| 398 // Enable the actions | |
| 399 enableActions(true); | |
| 400 } | |
| 401 } | |
| 402 | |
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403 private void internalSave(IProgressMonitor progressMonitor,String filename ){ |
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404 try { |
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405 progressMonitor.beginTask("Saving", IProgressMonitor.UNKNOWN ); |
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406 library.save(filename); |
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407 progressMonitor.done(); |
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408 } catch (IOException e) { |
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409 showError(Format("Can't save file {}\r{}", library.getFileName(), e.msg )); |
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410 } |
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411 } |
| 66 | 412 /** |
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413 * Shows an error |
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414 * |
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415 * @param msg the error |
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416 */ |
| 66 | 417 public void showError(String msg) { |
| 418 MessageDialog.openError(getShell(), "Error", msg); | |
| 419 } | |
| 420 | |
| 421 /** | |
| 422 * Refreshes the view | |
| 423 */ | |
| 424 public void refreshView() { | |
| 425 // Refresh the view | |
| 426 viewer.refresh(); | |
| 427 | |
| 428 // Repack the columns | |
| 429 for (int i = 0, n = viewer.getTable().getColumnCount(); i < n; i++) { | |
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430 viewer.getTable().getColumn(i).pack(); |
| 66 | 431 } |
| 432 | |
| 433 getStatusLineManager().setMessage( | |
| 434 showBookCountAction.isChecked() ? Format( "Book Count: {}", | |
| 435 library.getBooks().size()) : ""); | |
| 436 } | |
| 437 | |
| 438 /** | |
| 439 * Checks the current file for unsaved changes. If it has unsaved changes, | |
| 440 * confirms that user wants to overwrite | |
| 441 * | |
| 442 * @return bool | |
| 443 */ | |
| 444 public bool checkOverwrite() { | |
| 445 bool proceed = true; | |
| 446 if (library.isDirty()) { | |
| 447 proceed = MessageDialog.openConfirm(getShell(), "Are you sure?", | |
| 448 "You have unsaved changes--are you sure you want to lose them?"); | |
| 449 } | |
| 450 return proceed; | |
| 451 } | |
| 452 | |
| 453 /** | |
| 454 * Sets the current library dirty | |
| 455 */ | |
| 456 public void setLibraryDirty() { | |
| 457 library.setDirty(); | |
| 458 } | |
| 459 | |
| 460 /** | |
| 461 * Closes the application | |
| 462 */ | |
| 463 public bool close() { | |
| 464 if (checkOverwrite()) return super.close(); | |
| 465 return false; | |
| 466 } | |
| 467 | |
| 468 /** | |
| 469 * Enables or disables the actions | |
| 470 * | |
| 471 * @param enable true to enable, false to disable | |
| 472 */ | |
| 473 private void enableActions(bool enable) { | |
| 474 newAction.setEnabled(enable); | |
| 475 openAction.setEnabled(enable); | |
| 476 saveAction.setEnabled(enable); | |
| 477 saveAsAction.setEnabled(enable); | |
| 478 exitAction.setEnabled(enable); | |
| 479 addBookAction.setEnabled(enable); | |
| 480 removeBookAction.setEnabled(enable); | |
| 481 aboutAction.setEnabled(enable); | |
| 482 showBookCountAction.setEnabled(enable); | |
| 483 } | |
| 484 } | |
| 485 | |
| 486 | |
| 487 /** | |
| 488 * This action class responds to requests to save a file | |
| 489 */ | |
| 490 public class SaveAction : Action { | |
| 491 /** | |
| 492 * SaveAction constructor | |
| 493 */ | |
| 494 public this() { | |
| 495 super("&Save@Ctrl+S", ImageDescriptor.createFromFile( getImportData!("jface.librarian.save.gif"))); | |
| 496 setDisabledImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.disabledSave.gif"))); | |
| 497 setToolTipText("Save"); | |
| 498 } | |
| 499 | |
| 500 /** | |
| 501 * Saves the file | |
| 502 */ | |
| 503 public void run() { | |
| 504 Librarian.getApp().saveFile(); | |
| 505 } | |
| 506 } | |
| 507 | |
| 508 | |
| 509 | |
| 510 | |
| 511 /** | |
| 512 * This action class responds to requests open a file | |
| 513 */ | |
| 514 public class OpenAction : Action { | |
| 515 /** | |
| 516 * OpenAction constructor | |
| 517 */ | |
| 518 public this() { | |
| 519 super("&Open...@Ctrl+O", ImageDescriptor.createFromFile(getImportData!("jface.librarian.open.gif"))); | |
| 520 setDisabledImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.disabledOpen.gif"))); | |
| 521 setToolTipText("Open"); | |
| 522 } | |
| 523 | |
| 524 /** | |
| 525 * Opens an existing file | |
| 526 */ | |
| 527 public void run() { | |
| 528 // Use the file dialog | |
| 529 FileDialog dlg = new FileDialog(Librarian.getApp().getShell(), DWT.OPEN); | |
| 530 String fileName = dlg.open(); | |
| 531 if (fileName !is null) { | |
| 532 Librarian.getApp().openFile(fileName); | |
| 533 } | |
| 534 } | |
| 535 } | |
| 536 | |
| 537 /** | |
| 538 * This action class reponds to requests for a new file | |
| 539 */ | |
| 540 public class NewAction : Action { | |
| 541 /** | |
| 542 * NewAction constructor | |
| 543 */ | |
| 544 public this() { | |
| 545 super("&New@Ctrl+N", ImageDescriptor.createFromFile(getImportData!("jface.librarian.new.gif"))); | |
| 546 setDisabledImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.disabledNew.gif"))); | |
| 547 setToolTipText("New"); | |
| 548 } | |
| 549 | |
| 550 /** | |
| 551 * Creates a new file | |
| 552 */ | |
| 553 public void run() { | |
| 554 Librarian.getApp().newFile(); | |
| 555 } | |
| 556 } | |
| 557 | |
| 558 /** | |
| 559 * This action class responds to requests to save a file as . . . | |
| 560 */ | |
| 561 public class SaveAsAction : Action { | |
| 562 /** | |
| 563 * SaveAsAction constructor | |
| 564 */ | |
| 565 public this() { | |
| 566 super("Save As...", ImageDescriptor.createFromFile(getImportData!("jface.librarian.saveAs.gif"))); | |
| 567 setDisabledImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.disabledSaveAs.gif"))); | |
| 568 setToolTipText("Save As"); | |
| 569 } | |
| 570 | |
| 571 /** | |
| 572 * Saves the file | |
| 573 */ | |
| 574 public void run() { | |
| 575 SafeSaveDialog dlg = new SafeSaveDialog(Librarian.getApp().getShell()); | |
| 576 String fileName = dlg.open(); | |
| 577 if (fileName !is null) { | |
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578 Librarian.getApp().saveFileAs(fileName); |
| 66 | 579 } |
| 580 } | |
| 581 } | |
| 582 | |
| 583 | |
| 584 /** | |
| 585 * This action class deletes a book | |
| 586 */ | |
| 587 public class RemoveBookAction : Action { | |
| 588 /** | |
| 589 * RemoveBookAction constructor | |
| 590 */ | |
| 591 public this() { | |
| 592 super("&Remove Book@Ctrl+X", ImageDescriptor.createFromFile(getImportData!("jface.librarian.removeBook.gif"))); | |
| 593 setDisabledImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.disabledRemoveBook.gif"))); | |
| 594 setToolTipText("Remove"); | |
| 595 } | |
| 596 | |
| 597 /** | |
| 598 * Removes the selected book after confirming | |
| 599 */ | |
| 600 public void run() { | |
| 601 if (MessageDialog.openConfirm(Librarian.getApp().getShell(), "Are you sure?", | |
| 602 "Are you sure you want to remove the selected book?")) { | |
| 603 Librarian.getApp().removeSelectedBook(); | |
| 604 } | |
| 605 } | |
| 606 } | |
| 607 | |
| 608 | |
| 609 /** | |
| 610 * This action class adds a book | |
| 611 */ | |
| 612 public class AddBookAction : Action { | |
| 613 /** | |
| 614 * AddBookAction constructor | |
| 615 */ | |
| 616 public this() { | |
| 617 super("&Add Book@Ctrl+B", ImageDescriptor.createFromFile(getImportData!("jface.librarian.addBook.gif"))); | |
| 618 setDisabledImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.disabledAddBook.gif"))); | |
| 619 setToolTipText("Add"); | |
| 620 } | |
| 621 | |
| 622 /** | |
| 623 * Adds a book to the current library | |
| 624 */ | |
| 625 public void run() { | |
| 626 Librarian.getApp().addBook(); | |
| 627 } | |
| 628 } | |
| 629 | |
| 630 /** | |
| 631 * This action class exits the application | |
| 632 */ | |
| 633 public class ExitAction : Action { | |
| 634 /** | |
| 635 * ExitAction constructor | |
| 636 */ | |
| 637 public this() { | |
| 638 super("E&xit@Alt+F4"); | |
| 639 setToolTipText("Exit"); | |
| 640 } | |
| 641 | |
| 642 /** | |
| 643 * Exits the application | |
| 644 */ | |
| 645 public void run() { | |
| 646 Librarian.getApp().close(); | |
| 647 } | |
| 648 } | |
| 649 | |
| 650 /** | |
| 651 * This action class shows an About box | |
| 652 */ | |
| 653 public class AboutAction : Action { | |
| 654 /** | |
| 655 * AboutAction constructor | |
| 656 */ | |
| 657 public this() { | |
| 658 super("&About@Ctrl+A", ImageDescriptor.createFromFile(getImportData!("jface.librarian.about.gif"))); | |
| 659 setDisabledImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.disabledAbout.gif"))); | |
| 660 setToolTipText("About"); | |
| 661 } | |
| 662 | |
| 663 /** | |
| 664 * Shows an about box | |
| 665 */ | |
| 666 public void run() { | |
| 667 MessageDialog.openInformation(Librarian.getApp().getShell(), "About", | |
| 668 "Librarian--to manage your books"); | |
| 669 } | |
| 670 } | |
| 671 | |
| 672 | |
| 673 | |
| 674 /** | |
| 675 * This action class determines whether to show the book count | |
| 676 */ | |
| 677 public class ShowBookCountAction : Action { | |
| 678 public this() { | |
| 679 super("&Show Book Count@Ctrl+C", IAction.AS_CHECK_BOX); | |
| 680 setChecked(true); | |
| 681 setImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.count.gif"))); | |
| 682 setDisabledImageDescriptor(ImageDescriptor.createFromFile(getImportData!("jface.librarian.disabledCount.gif"))); | |
| 683 } | |
| 684 } | |
| 685 | |
| 686 /** | |
| 687 * This class represents a book | |
| 688 */ | |
| 689 public class Book { | |
| 690 private String title; | |
| 691 private String checkedOutTo; | |
| 692 | |
| 693 /** | |
| 694 * Book constructor | |
| 695 * @param title the title | |
| 696 */ | |
| 697 public this(String title) { | |
| 698 setTitle(title); | |
| 699 } | |
| 700 | |
| 701 /** | |
| 702 * Sets the title | |
| 703 * @param title the title | |
| 704 */ | |
| 705 public void setTitle(String title) { | |
| 706 this.title = title; | |
| 707 } | |
| 708 | |
| 709 /** | |
| 710 * Gets the title | |
| 711 * @return String | |
| 712 */ | |
| 713 public String getTitle() { | |
| 714 return title; | |
| 715 } | |
| 716 | |
| 717 /** | |
| 718 * Check out | |
| 719 * @param who the person checking this book out | |
| 720 */ | |
| 721 public void checkOut(String who) { | |
| 722 checkedOutTo = who; | |
| 723 if (checkedOutTo.length is 0) checkedOutTo = null; | |
| 724 } | |
| 725 | |
| 726 public bool isCheckedOut() { | |
| 727 return checkedOutTo !is null && checkedOutTo.length > 0; | |
| 728 } | |
| 729 | |
| 730 public void checkIn() { | |
| 731 checkedOutTo = null; | |
| 732 } | |
| 733 | |
| 734 /** | |
| 735 * Gets who this book is checked out to | |
| 736 * @return String | |
| 737 */ | |
| 738 public String getCheckedOutTo() { | |
| 739 return checkedOutTo; | |
| 740 } | |
| 741 } | |
| 742 | |
| 743 | |
| 744 /** | |
| 745 * This class provides a facade for the "save" | |
| 746 * FileDialog class. If the selected file already | |
| 747 * exists, the user is asked to confirm before | |
| 748 * overwriting. | |
| 749 */ | |
| 750 public class SafeSaveDialog | |
| 751 { | |
| 752 // The wrapped FileDialog | |
| 753 private FileDialog dlg; | |
| 754 | |
| 755 /** | |
| 756 * SafeSaveDialog constructor | |
| 757 * @param shell the parent shell | |
| 758 */ | |
| 759 public this(Shell shell) | |
| 760 { | |
| 761 dlg = new FileDialog(shell, DWT.SAVE); | |
| 762 } | |
| 763 | |
| 764 public String open() | |
| 765 { | |
| 766 // We store the selected file name in fileName | |
| 767 String fileName = null; | |
| 768 | |
| 769 // The user has finished when one of the | |
| 770 // following happens: | |
| 771 // 1) The user dismisses the dialog by pressing Cancel | |
| 772 // 2) The selected file name does not exist | |
| 773 // 3) The user agrees to overwrite existing file | |
| 774 bool done = false; | |
| 775 | |
| 776 while (!done) | |
| 777 { | |
| 778 // Open the File Dialog | |
| 779 fileName = dlg.open(); | |
| 780 if (fileName is null) | |
| 781 { | |
| 782 // User has cancelled, so quit and return | |
| 783 done = true; | |
| 784 } | |
| 785 else | |
| 786 { | |
| 787 // User has selected a file; see if it already exists | |
| 788 FilePath file = new FilePath(fileName); | |
| 789 if (file.exists()) | |
| 790 { | |
| 791 // The file already exists; asks for confirmation | |
| 792 MessageBox mb = new MessageBox(dlg.getParent(), | |
| 793 DWT.ICON_WARNING | DWT.YES | DWT.NO); | |
| 794 | |
| 795 // We really should read this string from a | |
| 796 // resource bundle | |
| 797 mb.setMessage(fileName ~ " already exists. Do you want to replace it?"); | |
| 798 | |
| 799 // If they click Yes, we're done and we drop out. If | |
| 800 // they click No, we redisplay the File Dialog | |
| 801 done = mb.open() is DWT.YES; | |
| 802 } | |
| 803 else | |
| 804 { | |
| 805 // File does not exist, so drop out | |
| 806 done = true; | |
| 807 } | |
| 808 } | |
| 809 } | |
| 810 return fileName; | |
| 811 } | |
| 812 | |
| 813 public String getFileName() | |
| 814 { | |
| 815 return dlg.getFileName(); | |
| 816 } | |
| 817 | |
| 818 public String[] getFileNames() | |
| 819 { | |
| 820 return dlg.getFileNames(); | |
| 821 } | |
| 822 | |
| 823 public String[] getFilterExtensions() | |
| 824 { | |
| 825 return dlg.getFilterExtensions(); | |
| 826 } | |
| 827 | |
| 828 public String[] getFilterNames() | |
| 829 { | |
| 830 return dlg.getFilterNames(); | |
| 831 } | |
| 832 | |
| 833 public String getFilterPath() | |
| 834 { | |
| 835 return dlg.getFilterPath(); | |
| 836 } | |
| 837 | |
| 838 public void setFileName(String string) | |
| 839 { | |
| 840 dlg.setFileName(string); | |
| 841 } | |
| 842 | |
| 843 public void setFilterExtensions(String[] extensions) | |
| 844 { | |
| 845 dlg.setFilterExtensions(extensions); | |
| 846 } | |
| 847 | |
| 848 public void setFilterNames(String[] names) | |
| 849 { | |
| 850 dlg.setFilterNames(names); | |
| 851 } | |
| 852 | |
| 853 public void setFilterPath(String string) | |
| 854 { | |
| 855 dlg.setFilterPath(string); | |
| 856 } | |
| 857 | |
| 858 public Shell getParent() | |
| 859 { | |
| 860 return dlg.getParent(); | |
| 861 } | |
| 862 | |
| 863 public int getStyle() | |
| 864 { | |
| 865 return dlg.getStyle(); | |
| 866 } | |
| 867 | |
| 868 public String getText() | |
| 869 { | |
| 870 return dlg.getText(); | |
| 871 } | |
| 872 | |
| 873 public void setText(String string) | |
| 874 { | |
| 875 dlg.setText(string); | |
| 876 } | |
| 877 } | |
| 878 | |
| 879 | |
| 880 /** | |
| 881 * This class is the cell modifier for the Librarian program | |
| 882 */ | |
| 883 public class LibraryCellModifier : ICellModifier { | |
| 884 /** | |
| 885 * Gets whether the specified property can be modified | |
| 886 * | |
| 887 * @param element the book | |
| 888 * @param property the property | |
| 889 * @return bool | |
| 890 */ | |
| 891 public bool canModify(Object element, String property) { | |
| 892 return true; | |
| 893 } | |
| 894 | |
| 895 /** | |
| 896 * Gets the value for the property | |
| 897 * | |
| 898 * @param element the book | |
| 899 * @param property the property | |
| 900 * @return Object | |
| 901 */ | |
| 902 public Object getValue(Object element, String property) { | |
| 903 Book book = cast(Book) element; | |
| 904 if (Librarian.TITLE.equals(property)) | |
| 905 return stringcast(book.getTitle()); | |
| 906 else if (Librarian.CHECKED_OUT.equals(property)) | |
| 907 return Boolean.valueOf(book.isCheckedOut()); | |
| 908 else if (Librarian.WHO.equals(property)) | |
| 909 return stringcast( book.getCheckedOutTo() is null ? "" : book.getCheckedOutTo()); | |
| 910 else | |
| 911 return null; | |
| 912 } | |
| 913 | |
| 914 /** | |
| 915 * Modifies the element | |
| 916 * | |
| 917 * @param element the book | |
| 918 * @param property the property | |
| 919 * @param value the new value | |
| 920 */ | |
| 921 public void modify(Object element, String property, Object value) { | |
| 922 if ( auto item = cast(Item)element ){ | |
| 923 element = item.getData(); | |
| 924 } | |
| 925 | |
| 926 Book book = cast(Book) element; | |
| 927 if (Librarian.TITLE.equals(property)) | |
| 928 book.setTitle(stringcast(value)); | |
| 929 else if (Librarian.CHECKED_OUT.equals(property)) { | |
| 930 bool b = (cast(Boolean) value).booleanValue(); | |
| 931 if (b) | |
| 932 book.checkOut("[Enter Name]"); | |
| 933 else | |
| 934 book.checkIn(); | |
| 935 } else if (Librarian.WHO.equals(property)) | |
| 936 book.checkOut(stringcast(value)); | |
| 937 | |
| 938 // Refresh the view | |
| 939 Librarian.getApp().refreshView(); | |
| 940 | |
| 941 // Set the library dirty | |
| 942 Librarian.getApp().setLibraryDirty(); | |
| 943 } | |
| 944 } | |
| 945 | |
| 946 /** | |
| 947 * This class holds all the books in a library. It also handles loading from and | |
| 948 * saving to disk | |
| 949 */ | |
| 950 public class Library { | |
| 951 private static const String SEP = "|"; | |
| 952 | |
| 953 // The filename | |
| 954 private String filename; | |
| 955 | |
| 956 // The books | |
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957 private LinkedList books; |
| 66 | 958 |
| 959 // The dirty flag | |
| 960 private bool dirty; | |
| 961 | |
| 962 /** | |
| 963 * Library constructor Note the signature :-) | |
| 964 */ | |
| 965 public this() { | |
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966 books = new LinkedList(); |
| 66 | 967 } |
| 968 | |
| 969 /** | |
| 970 * Loads the library from a file | |
| 971 * | |
| 972 * @param filename the filename | |
| 973 * @throws IOException | |
| 974 */ | |
| 975 public void load(String filename) { | |
| 976 auto istr = (new FileInput(filename)).input; | |
| 977 auto lines = new LineIterator!(char)(istr); | |
| 978 String line; | |
| 979 foreach (line; lines ) { | |
| 980 auto tokens = tango.text.Util.delimit(line, SEP); | |
| 981 Book book = null; | |
| 982 if ( tokens.length > 0 ) book = new Book( tokens[0].dup ); | |
| 983 if (tokens.length > 1) book.checkOut(tokens[1].dup ); | |
| 984 if (book !is null) add(book); | |
| 985 } | |
| 986 istr.close(); | |
| 987 this.filename = filename; | |
| 988 dirty = false; | |
| 989 } | |
| 990 | |
| 991 /** | |
| 992 * Saves the library to a file | |
| 993 * | |
| 994 * @param filename the filename | |
| 995 * @throws IOException | |
| 996 */ | |
| 997 public void save(String filename) { | |
| 998 scope ostr = (new FileOutput(filename)).output; | |
| 999 scope printer = new Print!(char)( Format, ostr ); | |
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1000 foreach ( o; books ) { |
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1001 Book book = cast(Book)o; |
| 66 | 1002 printer.formatln( "{}|{}",book.getTitle(), (book.getCheckedOutTo() is null ? "" : book.getCheckedOutTo())); |
| 1003 } | |
| 1004 ostr.close(); | |
| 1005 this.filename = filename; | |
| 1006 dirty = false; | |
| 1007 } | |
| 1008 | |
| 1009 /** | |
| 1010 * Adds a book | |
| 1011 * | |
| 1012 * @param book the book to add | |
| 1013 * @return bool | |
| 1014 */ | |
| 1015 public bool add(Book book) { | |
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1016 books.add(book); |
| 66 | 1017 setDirty(); |
| 1018 return true; | |
| 1019 } | |
| 1020 | |
| 1021 /** | |
| 1022 * Removes a book | |
| 1023 * | |
| 1024 * @param book the book to remove | |
| 1025 */ | |
| 1026 public void remove(Book book) { | |
| 1027 books.remove(book); | |
| 1028 setDirty(); | |
| 1029 } | |
| 1030 | |
| 1031 /** | |
| 1032 * Gets the books | |
| 1033 * | |
| 1034 * @return Collection | |
| 1035 */ | |
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1036 public LinkedList getBooks() { |
| 66 | 1037 return books; |
| 1038 } | |
| 1039 | |
| 1040 /** | |
| 1041 * Gets the file name | |
| 1042 * | |
| 1043 * @return String | |
| 1044 */ | |
| 1045 public String getFileName() { | |
| 1046 return filename; | |
| 1047 } | |
| 1048 | |
| 1049 /** | |
| 1050 * Gets whether this file is dirty | |
| 1051 * | |
| 1052 * @return bool | |
| 1053 */ | |
| 1054 public bool isDirty() { | |
| 1055 return dirty; | |
| 1056 } | |
| 1057 | |
| 1058 /** | |
| 1059 * Sets this file as dirty | |
| 1060 */ | |
| 1061 public void setDirty() { | |
| 1062 dirty = true; | |
| 1063 } | |
| 1064 } | |
| 1065 | |
| 1066 | |
| 1067 /** | |
| 1068 * This class provides the content for the library table | |
| 1069 */ | |
| 1070 public class LibraryContentProvider : IStructuredContentProvider { | |
| 1071 /** | |
| 1072 * Gets the books | |
| 1073 * | |
| 1074 * @param inputElement the library | |
| 1075 * @return Object[] | |
| 1076 */ | |
| 1077 public Object[] getElements(Object inputElement) { | |
| 1078 return (cast(Library) inputElement).getBooks().toArray(); | |
| 1079 } | |
| 1080 | |
| 1081 /** | |
| 1082 * Disposes any resources | |
| 1083 */ | |
| 1084 public void dispose() { | |
| 1085 // Do nothing | |
| 1086 } | |
| 1087 | |
| 1088 /** | |
| 1089 * Called when the input changes | |
| 1090 * | |
| 1091 * @param viewer the viewer | |
| 1092 * @param oldInput the old library | |
| 1093 * @param newInput the new library | |
| 1094 */ | |
| 1095 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { | |
| 1096 // Ignore | |
| 1097 } | |
| 1098 } | |
| 1099 | |
| 1100 | |
| 1101 /** | |
| 1102 * This class provides the labels for the library table | |
| 1103 */ | |
| 1104 public class LibraryLabelProvider : ITableLabelProvider { | |
| 1105 private Image checked; | |
| 1106 private Image unchecked; | |
| 1107 | |
| 1108 /** | |
| 1109 * LibraryLabelProvider constructor | |
| 1110 */ | |
| 1111 public this() { | |
| 1112 // Create the check mark images | |
| 1113 checked = new Image(null, new ImageData( new ByteArrayInputStream( cast(byte[])import("jface.librarian.checked.gif")))); | |
| 1114 unchecked = new Image(null,new ImageData( new ByteArrayInputStream( cast(byte[])import("jface.librarian.unchecked.gif")))); | |
| 1115 } | |
| 1116 | |
| 1117 /** | |
| 1118 * Gets the column image | |
| 1119 * | |
| 1120 * @param element the book | |
| 1121 * @param columnIndex the column index | |
| 1122 * @return Image | |
| 1123 */ | |
| 1124 public Image getColumnImage(Object element, int columnIndex) { | |
| 1125 // For the "Checked Out" column, return the check mark | |
| 1126 // if the book is checked out | |
| 1127 if (columnIndex is 1) | |
| 1128 return (cast(Book) element).isCheckedOut() ? checked : unchecked; | |
| 1129 return null; | |
| 1130 } | |
| 1131 | |
| 1132 /** | |
| 1133 * Gets the column text | |
| 1134 * | |
| 1135 * @param element the book | |
| 1136 * @param columnIndex the column index | |
| 1137 * @return String | |
| 1138 */ | |
| 1139 public String getColumnText(Object element, int columnIndex) { | |
| 1140 Book book = cast(Book) element; | |
| 1141 String text = null; | |
| 1142 switch (columnIndex) { | |
| 1143 case 0: | |
| 1144 text = book.getTitle(); | |
| 1145 break; | |
| 1146 case 2: | |
| 1147 text = book.getCheckedOutTo(); | |
| 1148 break; | |
| 1149 default: | |
| 1150 } | |
| 1151 return text is null ? "" : text; | |
| 1152 } | |
| 1153 | |
| 1154 /** | |
| 1155 * Adds a listener | |
| 1156 */ | |
| 1157 public void addListener(ILabelProviderListener listener) { | |
| 1158 // Ignore | |
| 1159 } | |
| 1160 | |
| 1161 /** | |
| 1162 * Disposes any resources | |
| 1163 */ | |
| 1164 public void dispose() { | |
| 1165 if (checked !is null) checked.dispose(); | |
| 1166 if (unchecked !is null) unchecked.dispose(); | |
| 1167 } | |
| 1168 | |
| 1169 /** | |
| 1170 * Gets whether this is a label property | |
| 1171 * | |
| 1172 * @param element the book | |
| 1173 * @param property the property | |
| 1174 * @return bool | |
| 1175 */ | |
| 1176 public bool isLabelProperty(Object element, String property) { | |
| 1177 return false; | |
| 1178 } | |
| 1179 | |
| 1180 /** | |
| 1181 * Removes a listener | |
| 1182 * | |
| 1183 * @param listener the listener | |
| 1184 */ | |
| 1185 public void removeListener(ILabelProviderListener listener) { | |
| 1186 // Ignore | |
| 1187 } | |
| 1188 } | |
| 1189 | |
| 1190 | |
| 1191 | |
| 1192 | |
| 1193 | |
| 1194 |