Mercurial > projects > dwt-win
annotate dwt/custom/CCombo.d @ 244:a59d51c12b42
work on allow null strings and arrays
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sat, 28 Jun 2008 20:27:21 +0200 |
| parents | 36f5cb12e1a2 |
| children | fd9c62a2998e |
| rev | line source |
|---|---|
| 155 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2007 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module dwt.custom.CCombo; | |
| 14 | |
| 15 | |
| 16 | |
| 17 import dwt.DWT; | |
| 18 import dwt.DWTException; | |
| 19 import dwt.accessibility.ACC; | |
| 20 import dwt.accessibility.AccessibleAdapter; | |
| 21 import dwt.accessibility.AccessibleControlAdapter; | |
| 22 import dwt.accessibility.AccessibleControlEvent; | |
| 23 import dwt.accessibility.AccessibleEvent; | |
| 24 import dwt.accessibility.AccessibleTextAdapter; | |
| 25 import dwt.accessibility.AccessibleTextEvent; | |
| 26 import dwt.events.ModifyListener; | |
| 27 import dwt.events.SelectionEvent; | |
| 28 import dwt.events.SelectionListener; | |
| 29 import dwt.events.VerifyListener; | |
| 30 import dwt.graphics.Color; | |
| 31 import dwt.graphics.Font; | |
| 32 import dwt.graphics.GC; | |
| 33 import dwt.graphics.Point; | |
| 34 import dwt.graphics.Rectangle; | |
| 35 import dwt.widgets.Button; | |
| 36 import dwt.widgets.Composite; | |
| 37 import dwt.widgets.Control; | |
| 38 import dwt.widgets.Display; | |
| 39 import dwt.widgets.Event; | |
| 40 import dwt.widgets.Label; | |
| 41 import dwt.widgets.Layout; | |
| 42 import dwt.widgets.List; | |
| 43 import dwt.widgets.Listener; | |
| 44 import dwt.widgets.Menu; | |
| 45 import dwt.widgets.Shell; | |
| 46 import dwt.widgets.Text; | |
| 47 import dwt.widgets.TypedListener; | |
| 48 import dwt.widgets.Widget; | |
| 49 | |
| 50 static import tango.text.convert.Utf; | |
| 51 static import tango.text.Unicode; | |
| 52 static import tango.text.convert.Format; | |
| 53 import dwt.dwthelper.utils; | |
| 213 | 54 import dwt.dwthelper.Runnable; |
| 155 | 55 |
| 56 /** | |
| 57 * The CCombo class represents a selectable user interface object | |
| 58 * that combines a text field and a list and issues notification | |
| 59 * when an item is selected from the list. | |
| 60 * <p> | |
| 61 * CCombo was written to work around certain limitations in the native | |
| 62 * combo box. Specifically, on win32, the height of a CCombo can be set; | |
| 63 * attempts to set the height of a Combo are ignored. CCombo can be used | |
| 64 * anywhere that having the increased flexibility is more important than | |
| 65 * getting native L&F, but the decision should not be taken lightly. | |
| 66 * There is no is no strict requirement that CCombo look or behave | |
| 67 * the same as the native combo box. | |
| 68 * </p> | |
| 69 * <p> | |
| 70 * Note that although this class is a subclass of <code>Composite</code>, | |
| 71 * it does not make sense to add children to it, or set a layout on it. | |
| 72 * </p> | |
| 73 * <dl> | |
| 74 * <dt><b>Styles:</b> | |
| 75 * <dd>BORDER, READ_ONLY, FLAT</dd> | |
| 76 * <dt><b>Events:</b> | |
| 77 * <dd>DefaultSelection, Modify, Selection, Verify</dd> | |
| 78 * </dl> | |
| 79 */ | |
| 80 public final class CCombo : Composite { | |
| 81 | |
| 82 alias Composite.computeSize computeSize; | |
| 83 | |
| 84 Text text; | |
| 85 List list; | |
| 86 int visibleItemCount = 5; | |
| 87 Shell popup; | |
| 88 Button arrow; | |
| 89 bool hasFocus; | |
| 90 Listener listener, filter; | |
| 91 Color foreground, background; | |
| 92 Font font; | |
| 93 | |
| 94 /** | |
| 95 * Constructs a new instance of this class given its parent | |
| 96 * and a style value describing its behavior and appearance. | |
| 97 * <p> | |
| 98 * The style value is either one of the style constants defined in | |
| 99 * class <code>DWT</code> which is applicable to instances of this | |
| 100 * class, or must be built by <em>bitwise OR</em>'ing together | |
| 101 * (that is, using the <code>int</code> "|" operator) two or more | |
| 102 * of those <code>DWT</code> style constants. The class description | |
| 103 * lists the style constants that are applicable to the class. | |
| 104 * Style bits are also inherited from superclasses. | |
| 105 * </p> | |
| 106 * | |
| 107 * @param parent a widget which will be the parent of the new instance (cannot be null) | |
| 108 * @param style the style of widget to construct | |
| 109 * | |
| 110 * @exception IllegalArgumentException <ul> | |
| 111 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> | |
| 112 * </ul> | |
| 113 * @exception DWTException <ul> | |
| 114 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> | |
| 115 * </ul> | |
| 116 * | |
| 117 * @see DWT#BORDER | |
| 118 * @see DWT#READ_ONLY | |
| 119 * @see DWT#FLAT | |
| 120 * @see Widget#getStyle() | |
| 121 */ | |
| 122 public this (Composite parent, int style) { | |
| 123 super (parent, style = checkStyle (style)); | |
| 124 | |
| 125 int textStyle = DWT.SINGLE; | |
| 126 if ((style & DWT.READ_ONLY) !is 0) textStyle |= DWT.READ_ONLY; | |
| 127 if ((style & DWT.FLAT) !is 0) textStyle |= DWT.FLAT; | |
| 128 text = new Text (this, textStyle); | |
| 129 int arrowStyle = DWT.ARROW | DWT.DOWN; | |
| 130 if ((style & DWT.FLAT) !is 0) arrowStyle |= DWT.FLAT; | |
| 131 arrow = new Button (this, arrowStyle); | |
| 132 | |
| 133 listener = new class() Listener { | |
| 134 public void handleEvent (Event event) { | |
| 135 if (popup is event.widget) { | |
| 136 popupEvent (event); | |
| 137 return; | |
| 138 } | |
| 139 if (text is event.widget) { | |
| 140 textEvent (event); | |
| 141 return; | |
| 142 } | |
| 143 if (list is event.widget) { | |
| 144 listEvent (event); | |
| 145 return; | |
| 146 } | |
| 147 if (arrow is event.widget) { | |
| 148 arrowEvent (event); | |
| 149 return; | |
| 150 } | |
| 151 if (this.outer is event.widget) { | |
| 152 comboEvent (event); | |
| 153 return; | |
| 154 } | |
| 155 if (getShell () is event.widget) { | |
| 213 | 156 getDisplay().asyncExec(new class() Runnable { |
| 157 public void run() { | |
| 158 if (isDisposed()) return; | |
| 159 handleFocus (DWT.FocusOut); | |
| 160 } | |
| 161 }); | |
| 155 | 162 } |
| 163 } | |
| 164 }; | |
| 165 filter = new class() Listener { | |
| 166 public void handleEvent(Event event) { | |
| 167 Shell shell = (cast(Control)event.widget).getShell (); | |
| 168 if (shell is this.outer.getShell ()) { | |
| 169 handleFocus (DWT.FocusOut); | |
| 170 } | |
| 171 } | |
| 172 }; | |
| 173 | |
| 213 | 174 int [] comboEvents = [DWT.Dispose, DWT.FocusIn, DWT.Move, DWT.Resize]; |
| 155 | 175 for (int i=0; i<comboEvents.length; i++) this.addListener (comboEvents [i], listener); |
| 176 | |
| 213 | 177 int [] textEvents = [DWT.DefaultSelection, DWT.KeyDown, DWT.KeyUp, DWT.MenuDetect, DWT.Modify, DWT.MouseDown, DWT.MouseUp, DWT.MouseDoubleClick, DWT.MouseWheel, DWT.Traverse, DWT.FocusIn, DWT.Verify]; |
| 155 | 178 for (int i=0; i<textEvents.length; i++) text.addListener (textEvents [i], listener); |
| 179 | |
| 213 | 180 int [] arrowEvents = [DWT.MouseDown, DWT.MouseUp, DWT.Selection, DWT.FocusIn]; |
| 155 | 181 for (int i=0; i<arrowEvents.length; i++) arrow.addListener (arrowEvents [i], listener); |
| 182 | |
| 183 createPopup(null, -1); | |
| 184 initAccessible(); | |
| 185 } | |
| 186 static int checkStyle (int style) { | |
| 187 int mask = DWT.BORDER | DWT.READ_ONLY | DWT.FLAT | DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT; | |
| 213 | 188 return DWT.NO_FOCUS | (style & mask); |
| 155 | 189 } |
| 190 /** | |
| 191 * Adds the argument to the end of the receiver's list. | |
| 192 * | |
| 193 * @param string the new item | |
| 194 * | |
| 195 * @exception DWTException <ul> | |
| 196 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 197 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 198 * </ul> | |
| 199 * | |
| 200 * @see #add(String,int) | |
| 201 */ | |
|
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202 public void add (String string) { |
| 155 | 203 checkWidget(); |
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204 // DWT extension: allow null string |
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205 //if (string is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); |
| 155 | 206 list.add (string); |
| 207 } | |
| 208 /** | |
| 209 * Adds the argument to the receiver's list at the given | |
| 210 * zero-relative index. | |
| 211 * <p> | |
| 212 * Note: To add an item at the end of the list, use the | |
| 213 * result of calling <code>getItemCount()</code> as the | |
| 214 * index or use <code>add(String)</code>. | |
| 215 * </p> | |
| 216 * | |
| 217 * @param string the new item | |
| 218 * @param index the index for the item | |
| 219 * | |
| 220 * @exception IllegalArgumentException <ul> | |
| 221 * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list (inclusive)</li> | |
| 222 * </ul> | |
| 223 * @exception DWTException <ul> | |
| 224 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 225 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 226 * </ul> | |
| 227 * | |
| 228 * @see #add(String) | |
| 229 */ | |
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230 public void add (String string, int index) { |
| 155 | 231 checkWidget(); |
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232 // DWT extension: allow null string |
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233 //if (string is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); |
| 155 | 234 list.add (string, index); |
| 235 } | |
| 236 /** | |
| 237 * Adds the listener to the collection of listeners who will | |
| 238 * be notified when the receiver's text is modified, by sending | |
| 239 * it one of the messages defined in the <code>ModifyListener</code> | |
| 240 * interface. | |
| 241 * | |
| 242 * @param listener the listener which should be notified | |
| 243 * | |
| 244 * @exception IllegalArgumentException <ul> | |
| 245 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 246 * </ul> | |
| 247 * @exception DWTException <ul> | |
| 248 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 249 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 250 * </ul> | |
| 251 * | |
| 252 * @see ModifyListener | |
| 253 * @see #removeModifyListener | |
| 254 */ | |
| 255 public void addModifyListener (ModifyListener listener) { | |
| 256 checkWidget(); | |
| 257 if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); | |
| 258 TypedListener typedListener = new TypedListener (listener); | |
| 259 addListener (DWT.Modify, typedListener); | |
| 260 } | |
| 261 /** | |
| 262 * Adds the listener to the collection of listeners who will | |
| 263 * be notified when the user changes the receiver's selection, by sending | |
| 264 * it one of the messages defined in the <code>SelectionListener</code> | |
| 265 * interface. | |
| 266 * <p> | |
| 267 * <code>widgetSelected</code> is called when the combo's list selection changes. | |
| 268 * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed the combo's text area. | |
| 269 * </p> | |
| 270 * | |
| 271 * @param listener the listener which should be notified when the user changes the receiver's selection | |
| 272 * | |
| 273 * @exception IllegalArgumentException <ul> | |
| 274 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 275 * </ul> | |
| 276 * @exception DWTException <ul> | |
| 277 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 278 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 279 * </ul> | |
| 280 * | |
| 281 * @see SelectionListener | |
| 282 * @see #removeSelectionListener | |
| 283 * @see SelectionEvent | |
| 284 */ | |
| 285 public void addSelectionListener(SelectionListener listener) { | |
| 286 checkWidget(); | |
| 287 if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); | |
| 288 TypedListener typedListener = new TypedListener (listener); | |
| 289 addListener (DWT.Selection,typedListener); | |
| 290 addListener (DWT.DefaultSelection,typedListener); | |
| 291 } | |
| 292 /** | |
| 293 * Adds the listener to the collection of listeners who will | |
| 294 * be notified when the receiver's text is verified, by sending | |
| 295 * it one of the messages defined in the <code>VerifyListener</code> | |
| 296 * interface. | |
| 297 * | |
| 298 * @param listener the listener which should be notified | |
| 299 * | |
| 300 * @exception IllegalArgumentException <ul> | |
| 301 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 302 * </ul> | |
| 303 * @exception DWTException <ul> | |
| 304 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 305 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 306 * </ul> | |
| 307 * | |
| 308 * @see VerifyListener | |
| 309 * @see #removeVerifyListener | |
| 310 * | |
| 311 * @since 3.3 | |
| 312 */ | |
| 313 public void addVerifyListener (VerifyListener listener) { | |
| 314 checkWidget(); | |
| 315 if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); | |
| 316 TypedListener typedListener = new TypedListener (listener); | |
| 317 addListener (DWT.Verify,typedListener); | |
| 318 } | |
| 319 void arrowEvent (Event event) { | |
| 320 switch (event.type) { | |
| 321 case DWT.FocusIn: { | |
| 322 handleFocus (DWT.FocusIn); | |
| 323 break; | |
| 324 } | |
| 213 | 325 case DWT.MouseDown: { |
| 326 Event mouseEvent = new Event (); | |
| 327 mouseEvent.button = event.button; | |
| 328 mouseEvent.count = event.count; | |
| 329 mouseEvent.stateMask = event.stateMask; | |
| 330 mouseEvent.time = event.time; | |
| 331 mouseEvent.x = event.x; mouseEvent.y = event.y; | |
| 332 notifyListeners (DWT.MouseDown, mouseEvent); | |
| 333 event.doit = mouseEvent.doit; | |
| 334 break; | |
| 335 } | |
| 336 case DWT.MouseUp: { | |
| 337 Event mouseEvent = new Event (); | |
| 338 mouseEvent.button = event.button; | |
| 339 mouseEvent.count = event.count; | |
| 340 mouseEvent.stateMask = event.stateMask; | |
| 341 mouseEvent.time = event.time; | |
| 342 mouseEvent.x = event.x; mouseEvent.y = event.y; | |
| 343 notifyListeners (DWT.MouseUp, mouseEvent); | |
| 344 event.doit = mouseEvent.doit; | |
| 345 break; | |
| 346 } | |
| 155 | 347 case DWT.Selection: { |
| 213 | 348 text.setFocus(); |
| 155 | 349 dropDown (!isDropped ()); |
| 350 break; | |
| 351 } | |
| 352 default: | |
| 353 } | |
| 354 } | |
| 355 /** | |
| 356 * Sets the selection in the receiver's text field to an empty | |
| 357 * selection starting just before the first character. If the | |
| 358 * text field is editable, this has the effect of placing the | |
| 359 * i-beam at the start of the text. | |
| 360 * <p> | |
| 361 * Note: To clear the selected items in the receiver's list, | |
| 362 * use <code>deselectAll()</code>. | |
| 363 * </p> | |
| 364 * | |
| 365 * @exception DWTException <ul> | |
| 366 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 367 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 368 * </ul> | |
| 369 * | |
| 370 * @see #deselectAll | |
| 371 */ | |
| 372 public void clearSelection () { | |
| 373 checkWidget (); | |
| 374 text.clearSelection (); | |
| 375 list.deselectAll (); | |
| 376 } | |
| 377 void comboEvent (Event event) { | |
| 378 switch (event.type) { | |
| 379 case DWT.Dispose: | |
| 380 if (popup !is null && !popup.isDisposed ()) { | |
| 381 list.removeListener (DWT.Dispose, listener); | |
| 382 popup.dispose (); | |
| 383 } | |
| 384 Shell shell = getShell (); | |
| 385 shell.removeListener (DWT.Deactivate, listener); | |
| 386 Display display = getDisplay (); | |
| 387 display.removeFilter (DWT.FocusIn, filter); | |
| 388 popup = null; | |
| 389 text = null; | |
| 390 list = null; | |
| 391 arrow = null; | |
| 392 break; | |
| 213 | 393 case DWT.FocusIn: |
| 394 Control focusControl = getDisplay ().getFocusControl (); | |
| 395 if (focusControl is arrow || focusControl is list) return; | |
| 396 if (isDropped()) { | |
| 397 list.setFocus(); | |
| 398 } else { | |
| 399 text.setFocus(); | |
| 400 } | |
| 401 break; | |
| 155 | 402 case DWT.Move: |
| 403 dropDown (false); | |
| 404 break; | |
| 405 case DWT.Resize: | |
| 406 internalLayout (false); | |
| 407 break; | |
| 408 default: | |
| 409 } | |
| 410 } | |
| 411 | |
| 412 public override Point computeSize (int wHint, int hHint, bool changed) { | |
| 413 checkWidget (); | |
| 414 int width = 0, height = 0; | |
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415 String[] items = list.getItems (); |
| 155 | 416 GC gc = new GC (text); |
| 417 int spacer = gc.stringExtent (" ").x; //$NON-NLS-1$ | |
| 418 int textWidth = gc.stringExtent (text.getText ()).x; | |
| 419 for (int i = 0; i < items.length; i++) { | |
| 420 textWidth = Math.max (gc.stringExtent (items[i]).x, textWidth); | |
| 421 } | |
| 422 gc.dispose (); | |
| 423 Point textSize = text.computeSize (DWT.DEFAULT, DWT.DEFAULT, changed); | |
| 424 Point arrowSize = arrow.computeSize (DWT.DEFAULT, DWT.DEFAULT, changed); | |
| 425 Point listSize = list.computeSize (DWT.DEFAULT, DWT.DEFAULT, changed); | |
| 426 int borderWidth = getBorderWidth (); | |
| 427 | |
| 428 height = Math.max (textSize.y, arrowSize.y); | |
| 429 width = Math.max (textWidth + 2*spacer + arrowSize.x + 2*borderWidth, listSize.x); | |
| 430 if (wHint !is DWT.DEFAULT) width = wHint; | |
| 431 if (hHint !is DWT.DEFAULT) height = hHint; | |
| 432 return new Point (width + 2*borderWidth, height + 2*borderWidth); | |
| 433 } | |
| 434 /** | |
| 435 * Copies the selected text. | |
| 436 * <p> | |
| 437 * The current selection is copied to the clipboard. | |
| 438 * </p> | |
| 439 * | |
| 440 * @exception DWTException <ul> | |
| 441 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 442 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 443 * </ul> | |
| 444 * | |
| 445 * @since 3.3 | |
| 446 */ | |
| 447 public void copy () { | |
| 448 checkWidget (); | |
| 449 text.copy (); | |
| 450 } | |
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451 void createPopup(String[] items, int selectionIndex) { |
| 155 | 452 // create shell and list |
| 453 popup = new Shell (getShell (), DWT.NO_TRIM | DWT.ON_TOP); | |
| 454 int style = getStyle (); | |
| 455 int listStyle = DWT.SINGLE | DWT.V_SCROLL; | |
| 456 if ((style & DWT.FLAT) !is 0) listStyle |= DWT.FLAT; | |
| 457 if ((style & DWT.RIGHT_TO_LEFT) !is 0) listStyle |= DWT.RIGHT_TO_LEFT; | |
| 458 if ((style & DWT.LEFT_TO_RIGHT) !is 0) listStyle |= DWT.LEFT_TO_RIGHT; | |
| 459 list = new List (popup, listStyle); | |
| 460 if (font !is null) list.setFont (font); | |
| 461 if (foreground !is null) list.setForeground (foreground); | |
| 462 if (background !is null) list.setBackground (background); | |
| 463 | |
| 464 int [] popupEvents = [DWT.Close, DWT.Paint, DWT.Deactivate]; | |
| 465 for (int i=0; i<popupEvents.length; i++) popup.addListener (popupEvents [i], listener); | |
| 466 int [] listEvents = [DWT.MouseUp, DWT.Selection, DWT.Traverse, DWT.KeyDown, DWT.KeyUp, DWT.FocusIn, DWT.Dispose]; | |
| 467 for (int i=0; i<listEvents.length; i++) list.addListener (listEvents [i], listener); | |
| 468 | |
| 469 if (items !is null) list.setItems (items); | |
| 470 if (selectionIndex !is -1) list.setSelection (selectionIndex); | |
| 471 } | |
| 472 /** | |
| 473 * Cuts the selected text. | |
| 474 * <p> | |
| 475 * The current selection is first copied to the | |
| 476 * clipboard and then deleted from the widget. | |
| 477 * </p> | |
| 478 * | |
| 479 * @exception DWTException <ul> | |
| 480 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 481 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 482 * </ul> | |
| 483 * | |
| 484 * @since 3.3 | |
| 485 */ | |
| 486 public void cut () { | |
| 487 checkWidget (); | |
| 488 text.cut (); | |
| 489 } | |
| 490 /** | |
| 491 * Deselects the item at the given zero-relative index in the receiver's | |
| 492 * list. If the item at the index was already deselected, it remains | |
| 493 * deselected. Indices that are out of range are ignored. | |
| 494 * | |
| 495 * @param index the index of the item to deselect | |
| 496 * | |
| 497 * @exception DWTException <ul> | |
| 498 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 499 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 500 * </ul> | |
| 501 */ | |
| 502 public void deselect (int index) { | |
| 503 checkWidget (); | |
| 213 | 504 if (0 <= index && index < list.getItemCount () && |
| 505 index is list.getSelectionIndex() && | |
| 506 text.getText().equals(list.getItem(index))) { | |
| 507 text.setText(""); //$NON-NLS-1$ | |
| 508 list.deselect (index); | |
| 509 } | |
| 155 | 510 } |
| 511 /** | |
| 512 * Deselects all selected items in the receiver's list. | |
| 513 * <p> | |
| 514 * Note: To clear the selection in the receiver's text field, | |
| 515 * use <code>clearSelection()</code>. | |
| 516 * </p> | |
| 517 * | |
| 518 * @exception DWTException <ul> | |
| 519 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 520 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 521 * </ul> | |
| 522 * | |
| 523 * @see #clearSelection | |
| 524 */ | |
| 525 public void deselectAll () { | |
| 526 checkWidget (); | |
| 213 | 527 text.setText(""); //$NON-NLS-1$ |
| 155 | 528 list.deselectAll (); |
| 529 } | |
| 530 void dropDown (bool drop) { | |
| 531 if (drop is isDropped ()) return; | |
| 532 if (!drop) { | |
| 533 popup.setVisible (false); | |
| 213 | 534 if (!isDisposed () && isFocusControl()) { |
| 155 | 535 text.setFocus(); |
| 536 } | |
| 537 return; | |
| 538 } | |
| 539 | |
| 540 if (getShell() !is popup.getParent ()) { | |
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541 String[] items = list.getItems (); |
| 155 | 542 int selectionIndex = list.getSelectionIndex (); |
| 543 list.removeListener (DWT.Dispose, listener); | |
| 544 popup.dispose(); | |
| 545 popup = null; | |
| 546 list = null; | |
| 547 createPopup (items, selectionIndex); | |
| 548 } | |
| 549 | |
| 550 Point size = getSize (); | |
| 551 int itemCount = list.getItemCount (); | |
| 552 itemCount = (itemCount is 0) ? visibleItemCount : Math.min(visibleItemCount, itemCount); | |
| 553 int itemHeight = list.getItemHeight () * itemCount; | |
| 554 Point listSize = list.computeSize (DWT.DEFAULT, itemHeight, false); | |
| 555 list.setBounds (1, 1, Math.max (size.x - 2, listSize.x), listSize.y); | |
| 556 | |
| 557 int index = list.getSelectionIndex (); | |
| 558 if (index !is -1) list.setTopIndex (index); | |
| 559 Display display = getDisplay (); | |
| 560 Rectangle listRect = list.getBounds (); | |
| 561 Rectangle parentRect = display.map (getParent (), null, getBounds ()); | |
| 562 Point comboSize = getSize (); | |
| 563 Rectangle displayRect = getMonitor ().getClientArea (); | |
| 564 int width = Math.max (comboSize.x, listRect.width + 2); | |
| 565 int height = listRect.height + 2; | |
| 566 int x = parentRect.x; | |
| 567 int y = parentRect.y + comboSize.y; | |
| 568 if (y + height > displayRect.y + displayRect.height) y = parentRect.y - height; | |
| 569 if (x + width > displayRect.x + displayRect.width) x = displayRect.x + displayRect.width - listRect.width; | |
| 570 popup.setBounds (x, y, width, height); | |
| 571 popup.setVisible (true); | |
| 213 | 572 if (isFocusControl()) list.setFocus (); |
| 155 | 573 } |
| 574 /* | |
| 575 * Return the lowercase of the first non-'&' character following | |
| 576 * an '&' character in the given string. If there are no '&' | |
| 577 * characters in the given string, return '\0'. | |
| 578 */ | |
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579 dchar _findMnemonic (String string) { |
| 155 | 580 if (string is null) return '\0'; |
| 581 int index = 0; | |
| 582 int length = string.length; | |
| 583 do { | |
| 584 while (index < length && string[index] !is '&') index++; | |
| 585 if (++index >= length) return '\0'; | |
| 586 if (string[index] !is '&') { | |
| 587 dchar[1] d; uint ate; | |
| 588 auto d2 = tango.text.convert.Utf.toString32( string[ index .. Math.min( index +4, string.length )], d, &ate ); | |
| 589 auto d3 = tango.text.Unicode.toLower( d2, d2 ); | |
| 590 return d3[0]; | |
| 591 } | |
| 592 index++; | |
| 593 } while (index < length); | |
| 594 return '\0'; | |
| 595 } | |
| 596 /* | |
| 597 * Return the Label immediately preceding the receiver in the z-order, | |
| 598 * or null if none. | |
| 599 */ | |
| 600 Label getAssociatedLabel () { | |
| 601 Control[] siblings = getParent ().getChildren (); | |
| 602 for (int i = 0; i < siblings.length; i++) { | |
| 603 if (siblings [i] is this) { | |
| 604 if (i > 0 && ( null !is cast(Label)siblings [i-1] )) { | |
| 605 return cast(Label) siblings [i-1]; | |
| 606 } | |
| 607 } | |
| 608 } | |
| 609 return null; | |
| 610 } | |
| 611 public override Control [] getChildren () { | |
| 612 checkWidget(); | |
| 613 return new Control [0]; | |
| 614 } | |
| 615 /** | |
| 616 * Gets the editable state. | |
| 617 * | |
| 618 * @return whether or not the receiver is editable | |
| 619 * | |
| 620 * @exception DWTException <ul> | |
| 621 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 622 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 623 * </ul> | |
| 624 * | |
| 625 * @since 3.0 | |
| 626 */ | |
| 627 public bool getEditable () { | |
| 628 checkWidget (); | |
| 629 return text.getEditable(); | |
| 630 } | |
| 631 /** | |
| 632 * Returns the item at the given, zero-relative index in the | |
| 633 * receiver's list. Throws an exception if the index is out | |
| 634 * of range. | |
| 635 * | |
| 636 * @param index the index of the item to return | |
| 637 * @return the item at the given index | |
| 638 * | |
| 639 * @exception IllegalArgumentException <ul> | |
| 640 * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> | |
| 641 * </ul> | |
| 642 * @exception DWTException <ul> | |
| 643 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 644 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 645 * </ul> | |
| 646 */ | |
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647 public String getItem (int index) { |
| 155 | 648 checkWidget(); |
| 649 return list.getItem (index); | |
| 650 } | |
| 651 /** | |
| 652 * Returns the number of items contained in the receiver's list. | |
| 653 * | |
| 654 * @return the number of items | |
| 655 * | |
| 656 * @exception DWTException <ul> | |
| 657 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 658 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 659 * </ul> | |
| 660 */ | |
| 661 public int getItemCount () { | |
| 662 checkWidget (); | |
| 663 return list.getItemCount (); | |
| 664 } | |
| 665 /** | |
| 666 * Returns the height of the area which would be used to | |
| 667 * display <em>one</em> of the items in the receiver's list. | |
| 668 * | |
| 669 * @return the height of one item | |
| 670 * | |
| 671 * @exception DWTException <ul> | |
| 672 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 673 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 674 * </ul> | |
| 675 */ | |
| 676 public int getItemHeight () { | |
| 677 checkWidget (); | |
| 678 return list.getItemHeight (); | |
| 679 } | |
| 680 /** | |
| 681 * Returns an array of <code>String</code>s which are the items | |
| 682 * in the receiver's list. | |
| 683 * <p> | |
| 684 * Note: This is not the actual structure used by the receiver | |
| 685 * to maintain its list of items, so modifying the array will | |
| 686 * not affect the receiver. | |
| 687 * </p> | |
| 688 * | |
| 689 * @return the items in the receiver's list | |
| 690 * | |
| 691 * @exception DWTException <ul> | |
| 692 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 693 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 694 * </ul> | |
| 695 */ | |
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696 public String [] getItems () { |
| 155 | 697 checkWidget (); |
| 698 return list.getItems (); | |
| 699 } | |
| 213 | 700 /** |
| 701 * Returns <code>true</code> if the receiver's list is visible, | |
| 702 * and <code>false</code> otherwise. | |
| 703 * <p> | |
| 704 * If one of the receiver's ancestors is not visible or some | |
| 705 * other condition makes the receiver not visible, this method | |
| 706 * may still indicate that it is considered visible even though | |
| 707 * it may not actually be showing. | |
| 708 * </p> | |
| 709 * | |
| 710 * @return the receiver's list's visibility state | |
| 711 * | |
| 712 * @exception DWTException <ul> | |
| 713 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 714 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 715 * </ul> | |
| 716 * | |
| 717 * @since 3.4 | |
| 718 */ | |
| 719 public bool getListVisible () { | |
| 720 checkWidget (); | |
| 721 return isDropped(); | |
| 722 } | |
| 155 | 723 public override Menu getMenu() { |
| 724 return text.getMenu(); | |
| 725 } | |
| 726 /** | |
| 727 * Returns a <code>Point</code> whose x coordinate is the start | |
| 728 * of the selection in the receiver's text field, and whose y | |
| 729 * coordinate is the end of the selection. The returned values | |
| 730 * are zero-relative. An "empty" selection as indicated by | |
| 731 * the the x and y coordinates having the same value. | |
| 732 * | |
| 733 * @return a point representing the selection start and end | |
| 734 * | |
| 735 * @exception DWTException <ul> | |
| 736 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 737 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 738 * </ul> | |
| 739 */ | |
| 740 public Point getSelection () { | |
| 741 checkWidget (); | |
| 742 return text.getSelection (); | |
| 743 } | |
| 744 /** | |
| 745 * Returns the zero-relative index of the item which is currently | |
| 746 * selected in the receiver's list, or -1 if no item is selected. | |
| 747 * | |
| 748 * @return the index of the selected item | |
| 749 * | |
| 750 * @exception DWTException <ul> | |
| 751 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 752 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 753 * </ul> | |
| 754 */ | |
| 755 public int getSelectionIndex () { | |
| 756 checkWidget (); | |
| 757 return list.getSelectionIndex (); | |
| 758 } | |
| 759 public override int getStyle () { | |
| 760 int style = super.getStyle (); | |
| 761 style &= ~DWT.READ_ONLY; | |
| 762 if (!text.getEditable()) style |= DWT.READ_ONLY; | |
| 763 return style; | |
| 764 } | |
| 765 /** | |
| 766 * Returns a string containing a copy of the contents of the | |
| 767 * receiver's text field. | |
| 768 * | |
| 769 * @return the receiver's text | |
| 770 * | |
| 771 * @exception DWTException <ul> | |
| 772 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 773 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 774 * </ul> | |
| 775 */ | |
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776 public String getText () { |
| 155 | 777 checkWidget (); |
| 778 return text.getText (); | |
| 779 } | |
| 780 /** | |
| 781 * Returns the height of the receivers's text field. | |
| 782 * | |
| 783 * @return the text height | |
| 784 * | |
| 785 * @exception DWTException <ul> | |
| 786 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 787 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 788 * </ul> | |
| 789 */ | |
| 790 public int getTextHeight () { | |
| 791 checkWidget (); | |
| 792 return text.getLineHeight (); | |
| 793 } | |
| 794 /** | |
| 795 * Returns the maximum number of characters that the receiver's | |
| 796 * text field is capable of holding. If this has not been changed | |
| 797 * by <code>setTextLimit()</code>, it will be the constant | |
| 798 * <code>Combo.LIMIT</code>. | |
| 799 * | |
| 800 * @return the text limit | |
| 801 * | |
| 802 * @exception DWTException <ul> | |
| 803 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 804 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 805 * </ul> | |
| 806 */ | |
| 807 public int getTextLimit () { | |
| 808 checkWidget (); | |
| 809 return text.getTextLimit (); | |
| 810 } | |
| 811 /** | |
| 812 * Gets the number of items that are visible in the drop | |
| 813 * down portion of the receiver's list. | |
| 814 * | |
| 815 * @return the number of items that are visible | |
| 816 * | |
| 817 * @exception DWTException <ul> | |
| 818 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 819 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 820 * </ul> | |
| 821 * | |
| 822 * @since 3.0 | |
| 823 */ | |
| 824 public int getVisibleItemCount () { | |
| 825 checkWidget (); | |
| 826 return visibleItemCount; | |
| 827 } | |
| 828 void handleFocus (int type) { | |
| 829 if (isDisposed ()) return; | |
| 830 switch (type) { | |
| 831 case DWT.FocusIn: { | |
| 832 if (hasFocus) return; | |
| 833 if (getEditable ()) text.selectAll (); | |
| 834 hasFocus = true; | |
| 835 Shell shell = getShell (); | |
| 836 shell.removeListener (DWT.Deactivate, listener); | |
| 837 shell.addListener (DWT.Deactivate, listener); | |
| 838 Display display = getDisplay (); | |
| 839 display.removeFilter (DWT.FocusIn, filter); | |
| 840 display.addFilter (DWT.FocusIn, filter); | |
| 841 Event e = new Event (); | |
| 842 notifyListeners (DWT.FocusIn, e); | |
| 843 break; | |
| 844 } | |
| 845 case DWT.FocusOut: { | |
| 846 if (!hasFocus) return; | |
| 847 Control focusControl = getDisplay ().getFocusControl (); | |
| 848 if (focusControl is arrow || focusControl is list || focusControl is text) return; | |
| 849 hasFocus = false; | |
| 850 Shell shell = getShell (); | |
| 851 shell.removeListener(DWT.Deactivate, listener); | |
| 852 Display display = getDisplay (); | |
| 853 display.removeFilter (DWT.FocusIn, filter); | |
| 854 Event e = new Event (); | |
| 855 notifyListeners (DWT.FocusOut, e); | |
| 856 break; | |
| 857 } | |
| 858 default: | |
| 859 } | |
| 860 } | |
| 861 /** | |
| 862 * Searches the receiver's list starting at the first item | |
| 863 * (index 0) until an item is found that is equal to the | |
| 864 * argument, and returns the index of that item. If no item | |
| 865 * is found, returns -1. | |
| 866 * | |
| 867 * @param string the search item | |
| 868 * @return the index of the item | |
| 869 * | |
| 870 * @exception DWTException <ul> | |
| 871 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 872 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 873 * </ul> | |
| 874 */ | |
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875 public int indexOf (String string) { |
| 155 | 876 checkWidget (); |
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877 // DWT extension: allow null string |
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878 //if (string is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); |
| 155 | 879 return list.indexOf (string); |
| 880 } | |
| 881 /** | |
| 882 * Searches the receiver's list starting at the given, | |
| 883 * zero-relative index until an item is found that is equal | |
| 884 * to the argument, and returns the index of that item. If | |
| 885 * no item is found or the starting index is out of range, | |
| 886 * returns -1. | |
| 887 * | |
| 888 * @param string the search item | |
| 889 * @param start the zero-relative index at which to begin the search | |
| 890 * @return the index of the item | |
| 891 * | |
| 892 * @exception DWTException <ul> | |
| 893 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 894 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 895 * </ul> | |
| 896 */ | |
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897 public int indexOf (String string, int start) { |
| 155 | 898 checkWidget (); |
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900 //if (string is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); |
| 155 | 901 return list.indexOf (string, start); |
| 902 } | |
| 903 | |
| 904 void initAccessible() { | |
| 905 AccessibleAdapter accessibleAdapter = new class() AccessibleAdapter { | |
| 906 public void getName (AccessibleEvent e) { | |
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907 String name = null; |
| 155 | 908 Label label = getAssociatedLabel (); |
| 909 if (label !is null) { | |
| 910 name = stripMnemonic (label.getText()); | |
| 911 } | |
| 912 e.result = name; | |
| 913 } | |
| 914 public void getKeyboardShortcut(AccessibleEvent e) { | |
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915 String shortcut = null; |
| 155 | 916 Label label = getAssociatedLabel (); |
| 917 if (label !is null) { | |
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918 String text = label.getText (); |
| 155 | 919 if (text !is null) { |
| 920 dchar mnemonic = _findMnemonic (text); | |
| 921 if (mnemonic !is '\0') { | |
| 922 shortcut = tango.text.convert.Format.Format( "Alt+{}", mnemonic ); //$NON-NLS-1$ | |
| 923 } | |
| 924 } | |
| 925 } | |
| 926 e.result = shortcut; | |
| 927 } | |
| 928 public void getHelp (AccessibleEvent e) { | |
| 929 e.result = getToolTipText (); | |
| 930 } | |
| 931 }; | |
| 932 getAccessible ().addAccessibleListener (accessibleAdapter); | |
| 933 text.getAccessible ().addAccessibleListener (accessibleAdapter); | |
| 934 list.getAccessible ().addAccessibleListener (accessibleAdapter); | |
| 935 | |
| 936 arrow.getAccessible ().addAccessibleListener (new class() AccessibleAdapter { | |
| 937 public void getName (AccessibleEvent e) { | |
| 938 e.result = isDropped () ? DWT.getMessage ("SWT_Close") : DWT.getMessage ("SWT_Open"); //$NON-NLS-1$ //$NON-NLS-2$ | |
| 939 } | |
| 940 public void getKeyboardShortcut (AccessibleEvent e) { | |
| 941 e.result = "Alt+Down Arrow"; //$NON-NLS-1$ | |
| 942 } | |
| 943 public void getHelp (AccessibleEvent e) { | |
| 944 e.result = getToolTipText (); | |
| 945 } | |
| 946 }); | |
| 947 | |
| 948 getAccessible().addAccessibleTextListener (new class() AccessibleTextAdapter { | |
| 949 public void getCaretOffset (AccessibleTextEvent e) { | |
| 950 e.offset = text.getCaretPosition (); | |
| 951 } | |
| 952 public void getSelectionRange(AccessibleTextEvent e) { | |
| 953 Point sel = text.getSelection(); | |
| 954 e.offset = sel.x; | |
| 955 e.length = sel.y - sel.x; | |
| 956 } | |
| 957 }); | |
| 958 | |
| 959 getAccessible().addAccessibleControlListener (new class() AccessibleControlAdapter { | |
| 960 public void getChildAtPoint (AccessibleControlEvent e) { | |
| 961 Point testPoint = toControl (e.x, e.y); | |
| 962 if (getBounds ().contains (testPoint)) { | |
| 963 e.childID = ACC.CHILDID_SELF; | |
| 964 } | |
| 965 } | |
| 966 | |
| 967 public void getLocation (AccessibleControlEvent e) { | |
| 968 Rectangle location = getBounds (); | |
| 213 | 969 Point pt = getParent().toDisplay (location.x, location.y); |
| 155 | 970 e.x = pt.x; |
| 971 e.y = pt.y; | |
| 972 e.width = location.width; | |
| 973 e.height = location.height; | |
| 974 } | |
| 975 | |
| 976 public void getChildCount (AccessibleControlEvent e) { | |
| 977 e.detail = 0; | |
| 978 } | |
| 979 | |
| 980 public void getRole (AccessibleControlEvent e) { | |
| 981 e.detail = ACC.ROLE_COMBOBOX; | |
| 982 } | |
| 983 | |
| 984 public void getState (AccessibleControlEvent e) { | |
| 985 e.detail = ACC.STATE_NORMAL; | |
| 986 } | |
| 987 | |
| 988 public void getValue (AccessibleControlEvent e) { | |
| 989 e.result = getText (); | |
| 990 } | |
| 991 }); | |
| 992 | |
| 993 text.getAccessible ().addAccessibleControlListener (new class() AccessibleControlAdapter { | |
| 994 public void getRole (AccessibleControlEvent e) { | |
| 995 e.detail = text.getEditable () ? ACC.ROLE_TEXT : ACC.ROLE_LABEL; | |
| 996 } | |
| 997 }); | |
| 998 | |
| 999 arrow.getAccessible ().addAccessibleControlListener (new class() AccessibleControlAdapter { | |
| 1000 public void getDefaultAction (AccessibleControlEvent e) { | |
| 1001 e.result = isDropped () ? DWT.getMessage ("SWT_Close") : DWT.getMessage ("SWT_Open"); //$NON-NLS-1$ //$NON-NLS-2$ | |
| 1002 } | |
| 1003 }); | |
| 1004 } | |
| 1005 bool isDropped () { | |
| 1006 return popup.getVisible (); | |
| 1007 } | |
| 1008 public override bool isFocusControl () { | |
| 1009 checkWidget(); | |
| 1010 if (text.isFocusControl () || arrow.isFocusControl () || list.isFocusControl () || popup.isFocusControl ()) { | |
| 1011 return true; | |
| 1012 } | |
| 1013 return super.isFocusControl (); | |
| 1014 } | |
| 1015 void internalLayout (bool changed) { | |
| 1016 if (isDropped ()) dropDown (false); | |
| 1017 Rectangle rect = getClientArea (); | |
| 1018 int width = rect.width; | |
| 1019 int height = rect.height; | |
| 1020 Point arrowSize = arrow.computeSize (DWT.DEFAULT, height, changed); | |
| 1021 text.setBounds (0, 0, width - arrowSize.x, height); | |
| 1022 arrow.setBounds (width - arrowSize.x, 0, arrowSize.x, arrowSize.y); | |
| 1023 } | |
| 1024 void listEvent (Event event) { | |
| 1025 switch (event.type) { | |
| 1026 case DWT.Dispose: | |
| 1027 if (getShell () !is popup.getParent ()) { | |
|
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1028 String[] items = list.getItems (); |
| 155 | 1029 int selectionIndex = list.getSelectionIndex (); |
| 1030 popup = null; | |
| 1031 list = null; | |
| 1032 createPopup (items, selectionIndex); | |
| 1033 } | |
| 1034 break; | |
| 1035 case DWT.FocusIn: { | |
| 1036 handleFocus (DWT.FocusIn); | |
| 1037 break; | |
| 1038 } | |
| 1039 case DWT.MouseUp: { | |
| 1040 if (event.button !is 1) return; | |
| 1041 dropDown (false); | |
| 1042 break; | |
| 1043 } | |
| 1044 case DWT.Selection: { | |
| 1045 int index = list.getSelectionIndex (); | |
| 1046 if (index is -1) return; | |
| 1047 text.setText (list.getItem (index)); | |
| 1048 text.selectAll (); | |
| 1049 list.setSelection (index); | |
| 1050 Event e = new Event (); | |
| 1051 e.time = event.time; | |
| 1052 e.stateMask = event.stateMask; | |
| 1053 e.doit = event.doit; | |
| 1054 notifyListeners (DWT.Selection, e); | |
| 1055 event.doit = e.doit; | |
| 1056 break; | |
| 1057 } | |
| 1058 case DWT.Traverse: { | |
| 1059 switch (event.detail) { | |
| 1060 case DWT.TRAVERSE_RETURN: | |
| 1061 case DWT.TRAVERSE_ESCAPE: | |
| 1062 case DWT.TRAVERSE_ARROW_PREVIOUS: | |
| 1063 case DWT.TRAVERSE_ARROW_NEXT: | |
| 1064 event.doit = false; | |
| 1065 break; | |
| 213 | 1066 case DWT.TRAVERSE_TAB_NEXT: |
| 1067 case DWT.TRAVERSE_TAB_PREVIOUS: | |
| 1068 event.doit = text.traverse(event.detail); | |
| 1069 event.detail = DWT.TRAVERSE_NONE; | |
| 1070 if (event.doit) dropDown(false); | |
| 1071 return; | |
| 155 | 1072 default: |
| 1073 } | |
| 1074 Event e = new Event (); | |
| 1075 e.time = event.time; | |
| 1076 e.detail = event.detail; | |
| 1077 e.doit = event.doit; | |
| 1078 e.character = event.character; | |
| 1079 e.keyCode = event.keyCode; | |
| 1080 notifyListeners (DWT.Traverse, e); | |
| 1081 event.doit = e.doit; | |
| 1082 event.detail = e.detail; | |
| 1083 break; | |
| 1084 } | |
| 1085 case DWT.KeyUp: { | |
| 1086 Event e = new Event (); | |
| 1087 e.time = event.time; | |
| 1088 e.character = event.character; | |
| 1089 e.keyCode = event.keyCode; | |
| 1090 e.stateMask = event.stateMask; | |
| 1091 notifyListeners (DWT.KeyUp, e); | |
| 1092 break; | |
| 1093 } | |
| 1094 case DWT.KeyDown: { | |
| 1095 if (event.character is DWT.ESC) { | |
| 1096 // Escape key cancels popup list | |
| 1097 dropDown (false); | |
| 1098 } | |
| 1099 if ((event.stateMask & DWT.ALT) !is 0 && (event.keyCode is DWT.ARROW_UP || event.keyCode is DWT.ARROW_DOWN)) { | |
| 1100 dropDown (false); | |
| 1101 } | |
| 1102 if (event.character is DWT.CR) { | |
| 1103 // Enter causes default selection | |
| 1104 dropDown (false); | |
| 1105 Event e = new Event (); | |
| 1106 e.time = event.time; | |
| 1107 e.stateMask = event.stateMask; | |
| 1108 notifyListeners (DWT.DefaultSelection, e); | |
| 1109 } | |
| 1110 // At this point the widget may have been disposed. | |
| 1111 // If so, do not continue. | |
| 1112 if (isDisposed ()) break; | |
| 1113 Event e = new Event(); | |
| 1114 e.time = event.time; | |
| 1115 e.character = event.character; | |
| 1116 e.keyCode = event.keyCode; | |
| 1117 e.stateMask = event.stateMask; | |
| 1118 notifyListeners(DWT.KeyDown, e); | |
| 1119 break; | |
| 1120 | |
| 1121 } | |
| 1122 default: | |
| 1123 } | |
| 1124 } | |
| 1125 /** | |
| 1126 * Pastes text from clipboard. | |
| 1127 * <p> | |
| 1128 * The selected text is deleted from the widget | |
| 1129 * and new text inserted from the clipboard. | |
| 1130 * </p> | |
| 1131 * | |
| 1132 * @exception DWTException <ul> | |
| 1133 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1134 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1135 * </ul> | |
| 1136 * | |
| 1137 * @since 3.3 | |
| 1138 */ | |
| 1139 public void paste () { | |
| 1140 checkWidget (); | |
| 1141 text.paste (); | |
| 1142 } | |
| 1143 void popupEvent(Event event) { | |
| 1144 switch (event.type) { | |
| 1145 case DWT.Paint: | |
| 1146 // draw black rectangle around list | |
| 1147 Rectangle listRect = list.getBounds(); | |
| 1148 Color black = getDisplay().getSystemColor(DWT.COLOR_BLACK); | |
| 1149 event.gc.setForeground(black); | |
| 1150 event.gc.drawRectangle(0, 0, listRect.width + 1, listRect.height + 1); | |
| 1151 break; | |
| 1152 case DWT.Close: | |
| 1153 event.doit = false; | |
| 1154 dropDown (false); | |
| 1155 break; | |
| 1156 case DWT.Deactivate: | |
| 194 | 1157 /* |
| 1158 * Bug in GTK. When the arrow button is pressed the popup control receives a | |
| 1159 * deactivate event and then the arrow button receives a selection event. If | |
| 1160 * we hide the popup in the deactivate event, the selection event will show | |
| 1161 * it again. To prevent the popup from showing again, we will let the selection | |
| 1162 * event of the arrow button hide the popup. | |
| 213 | 1163 * In Windows, hiding the popup during the deactivate causes the deactivate |
| 1164 * to be called twice and the selection event to be disappear. | |
| 194 | 1165 */ |
| 213 | 1166 if (!"carbon".equals(DWT.getPlatform())) { |
| 194 | 1167 Point point = arrow.toControl(getDisplay().getCursorLocation()); |
| 1168 Point size = arrow.getSize(); | |
| 1169 Rectangle rect = new Rectangle(0, 0, size.x, size.y); | |
| 1170 if (!rect.contains(point)) dropDown (false); | |
| 1171 } else { | |
| 1172 dropDown(false); | |
| 1173 } | |
| 155 | 1174 break; |
| 1175 default: | |
| 1176 } | |
| 1177 } | |
| 1178 public override void redraw () { | |
| 1179 super.redraw(); | |
| 1180 text.redraw(); | |
| 1181 arrow.redraw(); | |
| 1182 if (popup.isVisible()) list.redraw(); | |
| 1183 } | |
| 1184 public override void redraw (int x, int y, int width, int height, bool all) { | |
| 1185 super.redraw(x, y, width, height, true); | |
| 1186 } | |
| 1187 | |
| 1188 /** | |
| 1189 * Removes the item from the receiver's list at the given | |
| 1190 * zero-relative index. | |
| 1191 * | |
| 1192 * @param index the index for the item | |
| 1193 * | |
| 1194 * @exception IllegalArgumentException <ul> | |
| 1195 * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> | |
| 1196 * </ul> | |
| 1197 * @exception DWTException <ul> | |
| 1198 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1199 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1200 * </ul> | |
| 1201 */ | |
| 1202 public void remove (int index) { | |
| 1203 checkWidget(); | |
| 1204 list.remove (index); | |
| 1205 } | |
| 1206 /** | |
| 1207 * Removes the items from the receiver's list which are | |
| 1208 * between the given zero-relative start and end | |
| 1209 * indices (inclusive). | |
| 1210 * | |
| 1211 * @param start the start of the range | |
| 1212 * @param end the end of the range | |
| 1213 * | |
| 1214 * @exception IllegalArgumentException <ul> | |
| 1215 * <li>ERROR_INVALID_RANGE - if either the start or end are not between 0 and the number of elements in the list minus 1 (inclusive)</li> | |
| 1216 * </ul> | |
| 1217 * @exception DWTException <ul> | |
| 1218 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1219 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1220 * </ul> | |
| 1221 */ | |
| 1222 public void remove (int start, int end) { | |
| 1223 checkWidget(); | |
| 1224 list.remove (start, end); | |
| 1225 } | |
| 1226 /** | |
| 1227 * Searches the receiver's list starting at the first item | |
| 1228 * until an item is found that is equal to the argument, | |
| 1229 * and removes that item from the list. | |
| 1230 * | |
| 1231 * @param string the item to remove | |
| 1232 * | |
| 1233 * @exception IllegalArgumentException <ul> | |
| 1234 * <li>ERROR_INVALID_ARGUMENT - if the string is not found in the list</li> | |
| 1235 * </ul> | |
| 1236 * @exception DWTException <ul> | |
| 1237 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1238 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1239 * </ul> | |
| 1240 */ | |
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1241 public void remove (String string) { |
| 155 | 1242 checkWidget(); |
|
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1243 // DWT extension: allow null string |
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1244 //if (string is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); |
| 155 | 1245 list.remove (string); |
| 1246 } | |
| 1247 /** | |
| 1248 * Removes all of the items from the receiver's list and clear the | |
| 1249 * contents of receiver's text field. | |
| 1250 * <p> | |
| 1251 * @exception DWTException <ul> | |
| 1252 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1253 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1254 * </ul> | |
| 1255 */ | |
| 1256 public void removeAll () { | |
| 1257 checkWidget(); | |
| 1258 text.setText (""); //$NON-NLS-1$ | |
| 1259 list.removeAll (); | |
| 1260 } | |
| 1261 /** | |
| 1262 * Removes the listener from the collection of listeners who will | |
| 1263 * be notified when the receiver's text is modified. | |
| 1264 * | |
| 1265 * @param listener the listener which should no longer be notified | |
| 1266 * | |
| 1267 * @exception IllegalArgumentException <ul> | |
| 1268 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 1269 * </ul> | |
| 1270 * @exception DWTException <ul> | |
| 1271 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1272 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1273 * </ul> | |
| 1274 * | |
| 1275 * @see ModifyListener | |
| 1276 * @see #addModifyListener | |
| 1277 */ | |
| 1278 public void removeModifyListener (ModifyListener listener) { | |
| 1279 checkWidget(); | |
| 1280 if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); | |
| 1281 removeListener(DWT.Modify, listener); | |
| 1282 } | |
| 1283 /** | |
| 1284 * Removes the listener from the collection of listeners who will | |
| 1285 * be notified when the user changes the receiver's selection. | |
| 1286 * | |
| 1287 * @param listener the listener which should no longer be notified | |
| 1288 * | |
| 1289 * @exception IllegalArgumentException <ul> | |
| 1290 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 1291 * </ul> | |
| 1292 * @exception DWTException <ul> | |
| 1293 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1294 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1295 * </ul> | |
| 1296 * | |
| 1297 * @see SelectionListener | |
| 1298 * @see #addSelectionListener | |
| 1299 */ | |
| 1300 public void removeSelectionListener (SelectionListener listener) { | |
| 1301 checkWidget(); | |
| 1302 if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); | |
| 1303 removeListener(DWT.Selection, listener); | |
| 1304 removeListener(DWT.DefaultSelection,listener); | |
| 1305 } | |
| 1306 /** | |
| 1307 * Removes the listener from the collection of listeners who will | |
| 1308 * be notified when the control is verified. | |
| 1309 * | |
| 1310 * @param listener the listener which should no longer be notified | |
| 1311 * | |
| 1312 * @exception IllegalArgumentException <ul> | |
| 1313 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 1314 * </ul> | |
| 1315 * @exception DWTException <ul> | |
| 1316 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1317 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1318 * </ul> | |
| 1319 * | |
| 1320 * @see VerifyListener | |
| 1321 * @see #addVerifyListener | |
| 1322 * | |
| 1323 * @since 3.3 | |
| 1324 */ | |
| 1325 public void removeVerifyListener (VerifyListener listener) { | |
| 1326 checkWidget(); | |
| 1327 if (listener is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); | |
| 1328 removeListener(DWT.Verify, listener); | |
| 1329 } | |
| 1330 /** | |
| 1331 * Selects the item at the given zero-relative index in the receiver's | |
| 1332 * list. If the item at the index was already selected, it remains | |
| 1333 * selected. Indices that are out of range are ignored. | |
| 1334 * | |
| 1335 * @param index the index of the item to select | |
| 1336 * | |
| 1337 * @exception DWTException <ul> | |
| 1338 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1339 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1340 * </ul> | |
| 1341 */ | |
| 1342 public void select (int index) { | |
| 1343 checkWidget(); | |
| 1344 if (index is -1) { | |
| 1345 list.deselectAll (); | |
| 1346 text.setText (""); //$NON-NLS-1$ | |
| 1347 return; | |
| 1348 } | |
| 1349 if (0 <= index && index < list.getItemCount()) { | |
| 1350 if (index !is getSelectionIndex()) { | |
| 1351 text.setText (list.getItem (index)); | |
| 1352 text.selectAll (); | |
| 1353 list.select (index); | |
| 1354 list.showSelection (); | |
| 1355 } | |
| 1356 } | |
| 1357 } | |
| 1358 public override void setBackground (Color color) { | |
| 1359 super.setBackground(color); | |
| 1360 background = color; | |
| 1361 if (text !is null) text.setBackground(color); | |
| 1362 if (list !is null) list.setBackground(color); | |
| 1363 if (arrow !is null) arrow.setBackground(color); | |
| 1364 } | |
| 1365 /** | |
| 1366 * Sets the editable state. | |
| 1367 * | |
| 1368 * @param editable the new editable state | |
| 1369 * | |
| 1370 * @exception DWTException <ul> | |
| 1371 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1372 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1373 * </ul> | |
| 1374 * | |
| 1375 * @since 3.0 | |
| 1376 */ | |
| 1377 public void setEditable (bool editable) { | |
| 1378 checkWidget (); | |
| 1379 text.setEditable(editable); | |
| 1380 } | |
| 1381 public override void setEnabled (bool enabled) { | |
| 1382 super.setEnabled(enabled); | |
| 1383 if (popup !is null) popup.setVisible (false); | |
| 1384 if (text !is null) text.setEnabled(enabled); | |
| 1385 if (arrow !is null) arrow.setEnabled(enabled); | |
| 1386 } | |
| 1387 public override bool setFocus () { | |
| 1388 checkWidget(); | |
| 213 | 1389 if (!isEnabled () || !isVisible ()) return false; |
| 155 | 1390 if (isFocusControl ()) return true; |
| 1391 return text.setFocus (); | |
| 1392 } | |
| 1393 public override void setFont (Font font) { | |
| 1394 super.setFont (font); | |
| 1395 this.font = font; | |
| 1396 text.setFont (font); | |
| 1397 list.setFont (font); | |
| 1398 internalLayout (true); | |
| 1399 } | |
| 1400 public override void setForeground (Color color) { | |
| 1401 super.setForeground(color); | |
| 1402 foreground = color; | |
| 1403 if (text !is null) text.setForeground(color); | |
| 1404 if (list !is null) list.setForeground(color); | |
| 1405 if (arrow !is null) arrow.setForeground(color); | |
| 1406 } | |
| 1407 /** | |
| 1408 * Sets the text of the item in the receiver's list at the given | |
| 1409 * zero-relative index to the string argument. This is equivalent | |
| 1410 * to <code>remove</code>'ing the old item at the index, and then | |
| 1411 * <code>add</code>'ing the new item at that index. | |
| 1412 * | |
| 1413 * @param index the index for the item | |
| 1414 * @param string the new text for the item | |
| 1415 * | |
| 1416 * @exception IllegalArgumentException <ul> | |
| 1417 * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> | |
| 1418 * </ul> | |
| 1419 * @exception DWTException <ul> | |
| 1420 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1421 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1422 * </ul> | |
| 1423 */ | |
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1424 public void setItem (int index, String string) { |
| 155 | 1425 checkWidget(); |
| 1426 list.setItem (index, string); | |
| 1427 } | |
| 1428 /** | |
| 1429 * Sets the receiver's list to be the given array of items. | |
| 1430 * | |
| 1431 * @param items the array of items | |
| 1432 * | |
| 1433 * @exception IllegalArgumentException <ul> | |
| 1434 * <li>ERROR_NULL_ARGUMENT - if the items array is null</li> | |
| 1435 * <li>ERROR_INVALID_ARGUMENT - if an item in the items array is null</li> | |
| 1436 * </ul> | |
| 1437 * @exception DWTException <ul> | |
| 1438 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1439 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1440 * </ul> | |
| 1441 */ | |
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1442 public void setItems (String [] items) { |
| 155 | 1443 checkWidget (); |
| 1444 list.setItems (items); | |
| 1445 if (!text.getEditable ()) text.setText (""); //$NON-NLS-1$ | |
| 1446 } | |
| 1447 /** | |
| 1448 * Sets the layout which is associated with the receiver to be | |
| 1449 * the argument which may be null. | |
| 1450 * <p> | |
| 1451 * Note: No Layout can be set on this Control because it already | |
| 1452 * manages the size and position of its children. | |
| 1453 * </p> | |
| 1454 * | |
| 1455 * @param layout the receiver's new layout or null | |
| 1456 * | |
| 1457 * @exception DWTException <ul> | |
| 1458 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1459 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1460 * </ul> | |
| 1461 */ | |
| 1462 public override void setLayout (Layout layout) { | |
| 1463 checkWidget (); | |
| 1464 return; | |
| 1465 } | |
| 213 | 1466 /** |
| 1467 * Marks the receiver's list as visible if the argument is <code>true</code>, | |
| 1468 * and marks it invisible otherwise. | |
| 1469 * <p> | |
| 1470 * If one of the receiver's ancestors is not visible or some | |
| 1471 * other condition makes the receiver not visible, marking | |
| 1472 * it visible may not actually cause it to be displayed. | |
| 1473 * </p> | |
| 1474 * | |
| 1475 * @param visible the new visibility state | |
| 1476 * | |
| 1477 * @exception DWTException <ul> | |
| 1478 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1479 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1480 * </ul> | |
| 1481 * | |
| 1482 * @since 3.4 | |
| 1483 */ | |
| 1484 public void setListVisible (bool visible) { | |
| 1485 checkWidget (); | |
| 1486 dropDown(visible); | |
| 1487 } | |
| 155 | 1488 public override void setMenu(Menu menu) { |
| 1489 text.setMenu(menu); | |
| 1490 } | |
| 1491 /** | |
| 1492 * Sets the selection in the receiver's text field to the | |
| 1493 * range specified by the argument whose x coordinate is the | |
| 1494 * start of the selection and whose y coordinate is the end | |
| 1495 * of the selection. | |
| 1496 * | |
| 1497 * @param selection a point representing the new selection start and end | |
| 1498 * | |
| 1499 * @exception IllegalArgumentException <ul> | |
| 1500 * <li>ERROR_NULL_ARGUMENT - if the point is null</li> | |
| 1501 * </ul> | |
| 1502 * @exception DWTException <ul> | |
| 1503 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1504 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1505 * </ul> | |
| 1506 */ | |
| 1507 public void setSelection (Point selection) { | |
| 1508 checkWidget(); | |
| 1509 if (selection is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); | |
| 1510 text.setSelection (selection.x, selection.y); | |
| 1511 } | |
| 1512 | |
| 1513 /** | |
| 1514 * Sets the contents of the receiver's text field to the | |
| 1515 * given string. | |
| 1516 * <p> | |
| 1517 * Note: The text field in a <code>Combo</code> is typically | |
| 1518 * only capable of displaying a single line of text. Thus, | |
| 1519 * setting the text to a string containing line breaks or | |
| 1520 * other special characters will probably cause it to | |
| 1521 * display incorrectly. | |
| 1522 * </p> | |
| 1523 * | |
| 1524 * @param string the new text | |
| 1525 * | |
| 1526 * @exception DWTException <ul> | |
| 1527 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1528 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1529 * </ul> | |
| 1530 */ | |
|
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1531 public void setText (String string) { |
| 155 | 1532 checkWidget(); |
|
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1533 // DWT extension: allow null string |
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1534 //if (string is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); |
| 155 | 1535 int index = list.indexOf (string); |
| 1536 if (index is -1) { | |
| 1537 list.deselectAll (); | |
| 1538 text.setText (string); | |
| 1539 return; | |
| 1540 } | |
| 1541 text.setText (string); | |
| 1542 text.selectAll (); | |
| 1543 list.setSelection (index); | |
| 1544 list.showSelection (); | |
| 1545 } | |
| 1546 /** | |
| 1547 * Sets the maximum number of characters that the receiver's | |
| 1548 * text field is capable of holding to be the argument. | |
| 1549 * | |
| 1550 * @param limit new text limit | |
| 1551 * | |
| 1552 * @exception IllegalArgumentException <ul> | |
| 1553 * <li>ERROR_CANNOT_BE_ZERO - if the limit is zero</li> | |
| 1554 * </ul> | |
| 1555 * @exception DWTException <ul> | |
| 1556 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1557 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1558 * </ul> | |
| 1559 */ | |
| 1560 public void setTextLimit (int limit) { | |
| 1561 checkWidget(); | |
| 1562 text.setTextLimit (limit); | |
| 1563 } | |
| 1564 | |
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1565 public override void setToolTipText (String string) { |
| 155 | 1566 checkWidget(); |
| 1567 super.setToolTipText(string); | |
| 1568 arrow.setToolTipText (string); | |
| 1569 text.setToolTipText (string); | |
| 1570 } | |
| 1571 | |
| 1572 public override void setVisible (bool visible) { | |
| 1573 super.setVisible(visible); | |
| 1574 /* | |
| 1575 * At this point the widget may have been disposed in a FocusOut event. | |
| 1576 * If so then do not continue. | |
| 1577 */ | |
| 1578 if (isDisposed ()) return; | |
| 1579 if (!visible) popup.setVisible(false); | |
| 1580 } | |
| 1581 /** | |
| 1582 * Sets the number of items that are visible in the drop | |
| 1583 * down portion of the receiver's list. | |
| 1584 * | |
| 1585 * @param count the new number of items to be visible | |
| 1586 * | |
| 1587 * @exception DWTException <ul> | |
| 1588 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 1589 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 1590 * </ul> | |
| 1591 * | |
| 1592 * @since 3.0 | |
| 1593 */ | |
| 1594 public void setVisibleItemCount (int count) { | |
| 1595 checkWidget (); | |
| 1596 if (count < 0) return; | |
| 1597 visibleItemCount = count; | |
| 1598 } | |
|
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1599 String stripMnemonic (String string) { |
| 155 | 1600 int index = 0; |
| 1601 int length_ = string.length; | |
| 1602 do { | |
| 1603 while ((index < length_) && (string[index] !is '&')) index++; | |
| 1604 if (++index >= length_) return string; | |
| 1605 if (string[index] !is '&') { | |
| 1606 return string[0 .. index-1] ~ string[index .. length_]; | |
| 1607 } | |
| 1608 index++; | |
| 1609 } while (index < length_); | |
| 1610 return string; | |
| 1611 } | |
| 1612 void textEvent (Event event) { | |
| 1613 switch (event.type) { | |
| 1614 case DWT.FocusIn: { | |
| 1615 handleFocus (DWT.FocusIn); | |
| 1616 break; | |
| 1617 } | |
| 213 | 1618 case DWT.DefaultSelection: { |
| 1619 dropDown (false); | |
| 1620 Event e = new Event (); | |
| 1621 e.time = event.time; | |
| 1622 e.stateMask = event.stateMask; | |
| 1623 notifyListeners (DWT.DefaultSelection, e); | |
| 1624 break; | |
| 1625 } | |
| 155 | 1626 case DWT.KeyDown: { |
| 1627 Event keyEvent = new Event (); | |
| 1628 keyEvent.time = event.time; | |
| 1629 keyEvent.character = event.character; | |
| 1630 keyEvent.keyCode = event.keyCode; | |
| 1631 keyEvent.stateMask = event.stateMask; | |
| 1632 notifyListeners (DWT.KeyDown, keyEvent); | |
| 1633 if (isDisposed ()) break; | |
| 1634 event.doit = keyEvent.doit; | |
| 1635 if (!event.doit) break; | |
| 1636 if (event.keyCode is DWT.ARROW_UP || event.keyCode is DWT.ARROW_DOWN) { | |
| 1637 event.doit = false; | |
| 1638 if ((event.stateMask & DWT.ALT) !is 0) { | |
| 1639 bool dropped = isDropped (); | |
| 1640 text.selectAll (); | |
| 1641 if (!dropped) setFocus (); | |
| 1642 dropDown (!dropped); | |
| 1643 break; | |
| 1644 } | |
| 1645 | |
| 1646 int oldIndex = getSelectionIndex (); | |
| 1647 if (event.keyCode is DWT.ARROW_UP) { | |
| 1648 select (Math.max (oldIndex - 1, 0)); | |
| 1649 } else { | |
| 1650 select (Math.min (oldIndex + 1, getItemCount () - 1)); | |
| 1651 } | |
| 1652 if (oldIndex !is getSelectionIndex ()) { | |
| 1653 Event e = new Event(); | |
| 1654 e.time = event.time; | |
| 1655 e.stateMask = event.stateMask; | |
| 1656 notifyListeners (DWT.Selection, e); | |
| 1657 } | |
| 1658 if (isDisposed ()) break; | |
| 1659 } | |
| 1660 | |
| 1661 // Further work : Need to add support for incremental search in | |
| 1662 // pop up list as characters typed in text widget | |
| 1663 break; | |
| 1664 } | |
| 1665 case DWT.KeyUp: { | |
| 1666 Event e = new Event (); | |
| 1667 e.time = event.time; | |
| 1668 e.character = event.character; | |
| 1669 e.keyCode = event.keyCode; | |
| 1670 e.stateMask = event.stateMask; | |
| 1671 notifyListeners (DWT.KeyUp, e); | |
| 1672 event.doit = e.doit; | |
| 1673 break; | |
| 1674 } | |
| 1675 case DWT.MenuDetect: { | |
| 1676 Event e = new Event (); | |
| 1677 e.time = event.time; | |
| 1678 notifyListeners (DWT.MenuDetect, e); | |
| 1679 break; | |
| 1680 } | |
| 1681 case DWT.Modify: { | |
| 1682 list.deselectAll (); | |
| 1683 Event e = new Event (); | |
| 1684 e.time = event.time; | |
| 1685 notifyListeners (DWT.Modify, e); | |
| 1686 break; | |
| 1687 } | |
| 1688 case DWT.MouseDown: { | |
| 213 | 1689 Event mouseEvent = new Event (); |
| 1690 mouseEvent.button = event.button; | |
| 1691 mouseEvent.count = event.count; | |
| 1692 mouseEvent.stateMask = event.stateMask; | |
| 1693 mouseEvent.time = event.time; | |
| 1694 mouseEvent.x = event.x; mouseEvent.y = event.y; | |
| 1695 notifyListeners (DWT.MouseDown, mouseEvent); | |
| 1696 if (isDisposed ()) break; | |
| 1697 event.doit = mouseEvent.doit; | |
| 1698 if (!event.doit) break; | |
| 155 | 1699 if (event.button !is 1) return; |
| 1700 if (text.getEditable ()) return; | |
| 1701 bool dropped = isDropped (); | |
| 1702 text.selectAll (); | |
| 1703 if (!dropped) setFocus (); | |
| 1704 dropDown (!dropped); | |
| 1705 break; | |
| 1706 } | |
| 1707 case DWT.MouseUp: { | |
| 213 | 1708 Event mouseEvent = new Event (); |
| 1709 mouseEvent.button = event.button; | |
| 1710 mouseEvent.count = event.count; | |
| 1711 mouseEvent.stateMask = event.stateMask; | |
| 1712 mouseEvent.time = event.time; | |
| 1713 mouseEvent.x = event.x; mouseEvent.y = event.y; | |
| 1714 notifyListeners (DWT.MouseUp, mouseEvent); | |
| 1715 if (isDisposed ()) break; | |
| 1716 event.doit = mouseEvent.doit; | |
| 1717 if (!event.doit) break; | |
| 155 | 1718 if (event.button !is 1) return; |
| 1719 if (text.getEditable ()) return; | |
| 1720 text.selectAll (); | |
| 1721 break; | |
| 1722 } | |
| 213 | 1723 case DWT.MouseDoubleClick: { |
| 1724 Event mouseEvent = new Event (); | |
| 1725 mouseEvent.button = event.button; | |
| 1726 mouseEvent.count = event.count; | |
| 1727 mouseEvent.stateMask = event.stateMask; | |
| 1728 mouseEvent.time = event.time; | |
| 1729 mouseEvent.x = event.x; mouseEvent.y = event.y; | |
| 1730 notifyListeners (DWT.MouseDoubleClick, mouseEvent); | |
| 1731 break; | |
| 1732 } | |
| 1733 case DWT.MouseWheel: { | |
| 1734 Event keyEvent = new Event (); | |
| 1735 keyEvent.time = event.time; | |
| 1736 keyEvent.keyCode = event.count > 0 ? DWT.ARROW_UP : DWT.ARROW_DOWN; | |
| 1737 keyEvent.stateMask = event.stateMask; | |
| 1738 notifyListeners (DWT.KeyDown, keyEvent); | |
| 1739 if (isDisposed ()) break; | |
| 1740 event.doit = keyEvent.doit; | |
| 1741 if (!event.doit) break; | |
| 1742 if (event.count !is 0) { | |
| 1743 event.doit = false; | |
| 1744 int oldIndex = getSelectionIndex (); | |
| 1745 if (event.count > 0) { | |
| 1746 select (Math.max (oldIndex - 1, 0)); | |
| 1747 } else { | |
| 1748 select (Math.min (oldIndex + 1, getItemCount () - 1)); | |
| 1749 } | |
| 1750 if (oldIndex !is getSelectionIndex ()) { | |
| 1751 Event e = new Event(); | |
| 1752 e.time = event.time; | |
| 1753 e.stateMask = event.stateMask; | |
| 1754 notifyListeners (DWT.Selection, e); | |
| 1755 } | |
| 1756 if (isDisposed ()) break; | |
| 1757 } | |
| 1758 break; | |
| 1759 } | |
| 155 | 1760 case DWT.Traverse: { |
| 1761 switch (event.detail) { | |
| 1762 case DWT.TRAVERSE_ARROW_PREVIOUS: | |
| 1763 case DWT.TRAVERSE_ARROW_NEXT: | |
| 1764 // The enter causes default selection and | |
| 1765 // the arrow keys are used to manipulate the list contents so | |
| 1766 // do not use them for traversal. | |
| 1767 event.doit = false; | |
| 1768 break; | |
| 213 | 1769 case DWT.TRAVERSE_TAB_PREVIOUS: |
| 1770 event.doit = traverse(DWT.TRAVERSE_TAB_PREVIOUS); | |
| 1771 event.detail = DWT.TRAVERSE_NONE; | |
| 1772 return; | |
| 155 | 1773 default: |
| 1774 } | |
| 1775 Event e = new Event (); | |
| 1776 e.time = event.time; | |
| 1777 e.detail = event.detail; | |
| 1778 e.doit = event.doit; | |
| 1779 e.character = event.character; | |
| 1780 e.keyCode = event.keyCode; | |
| 1781 notifyListeners (DWT.Traverse, e); | |
| 1782 event.doit = e.doit; | |
| 1783 event.detail = e.detail; | |
| 1784 break; | |
| 1785 } | |
| 1786 case DWT.Verify: { | |
| 1787 Event e = new Event (); | |
| 1788 e.text = event.text; | |
| 1789 e.start = event.start; | |
| 1790 e.end = event.end; | |
| 1791 e.character = event.character; | |
| 1792 e.keyCode = event.keyCode; | |
| 1793 e.stateMask = event.stateMask; | |
| 1794 notifyListeners (DWT.Verify, e); | |
| 1795 event.doit = e.doit; | |
| 1796 break; | |
| 1797 } | |
| 1798 default: | |
| 1799 } | |
| 1800 } | |
| 1801 } |