Mercurial > projects > dwt-linux
annotate dwt/widgets/Button.d @ 58:a5c274fa5af9
extended helloworld crashing
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sat, 12 Jan 2008 07:02:08 +0100 |
| parents | 93981635e709 |
| children | 8cec8f536af3 |
| rev | line source |
|---|---|
| 37 | 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 *******************************************************************************/ | |
| 11 module dwt.widgets.Button; | |
| 12 | |
| 13 import dwt.widgets.Control; | |
| 14 | |
| 44 | 15 import dwt.internal.gtk.OS; |
| 16 import dwt.SWT; | |
| 17 import dwt.graphics.Point; | |
| 18 import dwt.graphics.Image; | |
| 19 import dwt.widgets.ImageList; | |
| 20 import dwt.widgets.Composite; | |
| 21 import dwt.events.SelectionListener; | |
| 22 import dwt.widgets.TypedListener; | |
| 23 import dwt.widgets.Decorations; | |
| 37 | 24 |
| 44 | 25 import tango.stdc.stringz; |
| 37 | 26 |
| 27 /** | |
| 28 * Instances of this class represent a selectable user interface object that | |
| 29 * issues notification when pressed and released. | |
| 30 * <dl> | |
| 31 * <dt><b>Styles:</b></dt> | |
| 32 * <dd>ARROW, CHECK, PUSH, RADIO, TOGGLE, FLAT</dd> | |
| 33 * <dd>UP, DOWN, LEFT, RIGHT, CENTER</dd> | |
| 34 * <dt><b>Events:</b></dt> | |
| 35 * <dd>Selection</dd> | |
| 36 * </dl> | |
| 37 * <p> | |
| 38 * Note: Only one of the styles ARROW, CHECK, PUSH, RADIO, and TOGGLE | |
| 39 * may be specified. | |
| 40 * </p><p> | |
| 41 * Note: Only one of the styles LEFT, RIGHT, and CENTER may be specified. | |
| 42 * </p><p> | |
| 43 * Note: Only one of the styles UP, DOWN, LEFT, and RIGHT may be specified | |
| 44 * when the ARROW style is specified. | |
| 45 * </p><p> | |
| 46 * IMPORTANT: This class is intended to be subclassed <em>only</em> | |
| 47 * within the SWT implementation. | |
| 48 * </p> | |
| 49 */ | |
| 44 | 50 public class Button : Control { |
| 51 GtkWidget* boxHandle, labelHandle, imageHandle, arrowHandle, groupHandle; | |
| 52 bool selected; | |
| 37 | 53 ImageList imageList; |
| 54 Image image; | |
| 44 | 55 char[] text; |
| 37 | 56 |
| 57 /** | |
| 58 * Constructs a new instance of this class given its parent | |
| 59 * and a style value describing its behavior and appearance. | |
| 60 * <p> | |
| 61 * The style value is either one of the style constants defined in | |
| 62 * class <code>SWT</code> which is applicable to instances of this | |
| 63 * class, or must be built by <em>bitwise OR</em>'ing together | |
| 64 * (that is, using the <code>int</code> "|" operator) two or more | |
| 65 * of those <code>SWT</code> style constants. The class description | |
| 66 * lists the style constants that are applicable to the class. | |
| 67 * Style bits are also inherited from superclasses. | |
| 68 * </p> | |
| 69 * | |
| 70 * @param parent a composite control which will be the parent of the new instance (cannot be null) | |
| 71 * @param style the style of control to construct | |
| 72 * | |
| 73 * @exception IllegalArgumentException <ul> | |
| 74 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> | |
| 75 * </ul> | |
| 76 * @exception SWTException <ul> | |
| 77 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> | |
| 78 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> | |
| 79 * </ul> | |
| 80 * | |
| 81 * @see SWT#ARROW | |
| 82 * @see SWT#CHECK | |
| 83 * @see SWT#PUSH | |
| 84 * @see SWT#RADIO | |
| 85 * @see SWT#TOGGLE | |
| 86 * @see SWT#FLAT | |
| 87 * @see SWT#LEFT | |
| 88 * @see SWT#RIGHT | |
| 89 * @see SWT#CENTER | |
| 90 * @see Widget#checkSubclass | |
| 91 * @see Widget#getStyle | |
| 92 */ | |
| 44 | 93 public this (Composite parent, int style) { |
| 37 | 94 super (parent, checkStyle (style)); |
| 95 } | |
| 96 | |
| 97 static int checkStyle (int style) { | |
| 98 style = checkBits (style, SWT.PUSH, SWT.ARROW, SWT.CHECK, SWT.RADIO, SWT.TOGGLE, 0); | |
| 44 | 99 if ((style & (SWT.PUSH | SWT.TOGGLE)) !is 0) { |
| 37 | 100 return checkBits (style, SWT.CENTER, SWT.LEFT, SWT.RIGHT, 0, 0, 0); |
| 101 } | |
| 44 | 102 if ((style & (SWT.CHECK | SWT.RADIO)) !is 0) { |
| 37 | 103 return checkBits (style, SWT.LEFT, SWT.RIGHT, SWT.CENTER, 0, 0, 0); |
| 104 } | |
| 44 | 105 if ((style & SWT.ARROW) !is 0) { |
| 37 | 106 style |= SWT.NO_FOCUS; |
| 107 return checkBits (style, SWT.UP, SWT.DOWN, SWT.LEFT, SWT.RIGHT, 0, 0); | |
| 108 } | |
| 109 return style; | |
| 110 } | |
| 111 | |
| 112 /** | |
| 113 * Adds the listener to the collection of listeners who will | |
| 114 * be notified when the control is selected by the user, by sending | |
| 115 * it one of the messages defined in the <code>SelectionListener</code> | |
| 116 * interface. | |
| 117 * <p> | |
| 118 * <code>widgetSelected</code> is called when the control is selected by the user. | |
| 119 * <code>widgetDefaultSelected</code> is not called. | |
| 120 * </p> | |
| 121 * | |
| 122 * @param listener the listener which should be notified | |
| 123 * | |
| 124 * @exception IllegalArgumentException <ul> | |
| 125 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 126 * </ul> | |
| 127 * @exception SWTException <ul> | |
| 128 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 129 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 130 * </ul> | |
| 131 * | |
| 132 * @see SelectionListener | |
| 133 * @see #removeSelectionListener | |
| 134 * @see SelectionEvent | |
| 135 */ | |
| 136 public void addSelectionListener (SelectionListener listener) { | |
| 137 checkWidget (); | |
| 44 | 138 if (listener is null) error (SWT.ERROR_NULL_ARGUMENT); |
| 37 | 139 TypedListener typedListener = new TypedListener (listener); |
| 140 addListener (SWT.Selection,typedListener); | |
| 141 addListener (SWT.DefaultSelection,typedListener); | |
| 142 } | |
| 143 | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
144 override public Point computeSize (int wHint, int hHint, bool changed) { |
| 37 | 145 checkWidget (); |
| 44 | 146 if (wHint !is SWT.DEFAULT && wHint < 0) wHint = 0; |
| 147 if (hHint !is SWT.DEFAULT && hHint < 0) hHint = 0; | |
| 37 | 148 /* |
| 149 * Feature in GTK, GtkCheckButton and GtkRadioButton allocate | |
| 150 * only the minimum size necessary for its child. This causes the child | |
| 151 * alignment to fail. The fix is to set the child size to the size | |
| 152 * of the button. | |
| 153 */ | |
| 154 forceResize (); | |
| 44 | 155 int reqWidth = -1, reqHeight = -1; |
| 156 if ((style & (SWT.CHECK | SWT.RADIO)) !is 0) { | |
| 157 OS.gtk_widget_get_size_request (boxHandle, &reqWidth, &reqHeight); | |
| 37 | 158 OS.gtk_widget_set_size_request (boxHandle, -1, -1); |
| 159 } | |
| 160 Point size = computeNativeSize (handle, wHint, hHint, changed); | |
| 44 | 161 if ((style & (SWT.CHECK | SWT.RADIO)) !is 0) { |
| 162 OS.gtk_widget_set_size_request (boxHandle, reqWidth, reqHeight); | |
| 37 | 163 } |
| 44 | 164 if (wHint !is SWT.DEFAULT || hHint !is SWT.DEFAULT) { |
| 165 if ((OS.GTK_WIDGET_FLAGS (handle) & OS.GTK_CAN_DEFAULT) !is 0) { | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
166 GtkBorder border; |
| 44 | 167 GtkBorder* buffer; |
| 168 OS.gtk_widget_style_get1 (handle, OS.default_border.ptr, cast(int*)&buffer ); | |
| 169 if (buffer !is null) { | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
170 border = *buffer; |
| 37 | 171 } else { |
| 172 /* Use the GTK+ default value of 1 for each. */ | |
| 173 border.left = border.right = border.top = border.bottom = 1; | |
| 174 } | |
| 44 | 175 if (wHint !is SWT.DEFAULT) size.x += border.left + border.right; |
| 176 if (hHint !is SWT.DEFAULT) size.y += border.top + border.bottom; | |
| 37 | 177 } |
| 178 } | |
| 179 return size; | |
| 180 } | |
| 181 | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
182 override void createHandle (int index) { |
| 37 | 183 state |= HANDLE; |
| 44 | 184 if ((style & SWT.PUSH) is 0) state |= THEME_BACKGROUND; |
| 37 | 185 int bits = SWT.ARROW | SWT.TOGGLE | SWT.CHECK | SWT.RADIO | SWT.PUSH; |
| 44 | 186 fixedHandle = cast(GtkWidget*)OS.g_object_new (display.gtk_fixed_get_type (), null); |
| 187 if (fixedHandle is null) error (SWT.ERROR_NO_HANDLES); | |
| 188 OS.gtk_fixed_set_has_window (cast(GtkFixed*)fixedHandle, true); | |
| 37 | 189 switch (style & bits) { |
| 190 case SWT.ARROW: | |
| 191 int arrow_type = OS.GTK_ARROW_UP; | |
| 44 | 192 if ((style & SWT.UP) !is 0) arrow_type = OS.GTK_ARROW_UP; |
| 193 if ((style & SWT.DOWN) !is 0) arrow_type = OS.GTK_ARROW_DOWN; | |
| 194 if ((style & SWT.LEFT) !is 0) arrow_type = OS.GTK_ARROW_LEFT; | |
| 195 if ((style & SWT.RIGHT) !is 0) arrow_type = OS.GTK_ARROW_RIGHT; | |
| 37 | 196 handle = OS.gtk_button_new (); |
| 44 | 197 if (handle is null) error (SWT.ERROR_NO_HANDLES); |
| 37 | 198 arrowHandle = OS.gtk_arrow_new (arrow_type, OS.GTK_SHADOW_OUT); |
| 44 | 199 if (arrowHandle is null) error (SWT.ERROR_NO_HANDLES); |
| 37 | 200 break; |
| 201 case SWT.TOGGLE: | |
| 202 handle = OS.gtk_toggle_button_new (); | |
| 44 | 203 if (handle is null) error (SWT.ERROR_NO_HANDLES); |
| 37 | 204 break; |
| 205 case SWT.CHECK: | |
| 206 handle = OS.gtk_check_button_new (); | |
| 44 | 207 if (handle is null) error (SWT.ERROR_NO_HANDLES); |
| 37 | 208 break; |
| 209 case SWT.RADIO: | |
| 210 /* | |
| 211 * Feature in GTK. In GTK, radio button must always be part of | |
| 212 * a radio button group. In a GTK radio group, one button is always | |
| 213 * selected. This means that it is not possible to have a single | |
| 214 * radio button that is unselected. This is necessary to allow | |
| 215 * applications to implement their own radio behavior or use radio | |
| 216 * buttons outside of radio groups. The fix is to create a hidden | |
| 217 * radio button for each radio button we create and add them | |
| 218 * to the same group. This allows the visible button to be | |
| 219 * unselected. | |
| 220 */ | |
| 44 | 221 groupHandle = cast(GtkWidget*)OS.gtk_radio_button_new (null); |
| 222 if (groupHandle is null) error (SWT.ERROR_NO_HANDLES); | |
| 37 | 223 OS.g_object_ref (groupHandle); |
| 44 | 224 OS.gtk_object_sink (cast(GtkObject*)groupHandle); |
| 225 handle = OS.gtk_radio_button_new ( OS.gtk_radio_button_get_group (cast(GtkRadioButton*)groupHandle)); | |
| 226 if (handle is null) error (SWT.ERROR_NO_HANDLES); | |
| 37 | 227 break; |
| 228 case SWT.PUSH: | |
| 229 default: | |
| 230 handle = OS.gtk_button_new (); | |
| 44 | 231 if (handle is null) error (SWT.ERROR_NO_HANDLES); |
| 37 | 232 OS.GTK_WIDGET_SET_FLAGS(handle, OS.GTK_CAN_DEFAULT); |
| 233 break; | |
| 234 } | |
| 44 | 235 if ((style & SWT.ARROW) !is 0) { |
| 236 OS.gtk_container_add (cast(GtkContainer*)handle, arrowHandle); | |
| 37 | 237 } else { |
| 238 boxHandle = OS.gtk_hbox_new (false, 4); | |
| 44 | 239 if (boxHandle is null) error (SWT.ERROR_NO_HANDLES); |
| 37 | 240 labelHandle = OS.gtk_label_new_with_mnemonic (null); |
| 44 | 241 if (labelHandle is null) error (SWT.ERROR_NO_HANDLES); |
| 37 | 242 imageHandle = OS.gtk_image_new (); |
| 44 | 243 if (imageHandle is null) error (SWT.ERROR_NO_HANDLES); |
| 244 OS.gtk_container_add (cast(GtkContainer*)handle, boxHandle); | |
| 245 OS.gtk_container_add (cast(GtkContainer*)boxHandle, imageHandle); | |
| 246 OS.gtk_container_add (cast(GtkContainer*)boxHandle, labelHandle); | |
| 37 | 247 } |
| 44 | 248 OS.gtk_container_add (cast(GtkContainer*)fixedHandle, handle); |
| 37 | 249 |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
250 if ((style & SWT.ARROW) !is 0) return; |
| 37 | 251 _setAlignment (style & (SWT.LEFT | SWT.CENTER | SWT.RIGHT)); |
| 252 } | |
| 253 | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
254 override void createWidget (int index) { |
| 37 | 255 super.createWidget (index); |
| 256 text = ""; | |
| 257 } | |
| 258 | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
259 override void deregister () { |
| 37 | 260 super.deregister (); |
| 44 | 261 if (boxHandle !is null) display.removeWidget (boxHandle); |
| 262 if (labelHandle !is null) display.removeWidget (labelHandle); | |
| 263 if (imageHandle !is null) display.removeWidget (imageHandle); | |
| 264 if (arrowHandle !is null) display.removeWidget (arrowHandle); | |
| 37 | 265 } |
| 266 | |
| 44 | 267 override GtkWidget* fontHandle () { |
| 268 if (labelHandle !is null) return labelHandle; | |
| 37 | 269 return super.fontHandle (); |
| 270 } | |
| 271 | |
| 272 /** | |
| 273 * Returns a value which describes the position of the | |
| 274 * text or image in the receiver. The value will be one of | |
| 275 * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code> | |
| 276 * unless the receiver is an <code>ARROW</code> button, in | |
| 277 * which case, the alignment will indicate the direction of | |
| 278 * the arrow (one of <code>LEFT</code>, <code>RIGHT</code>, | |
| 279 * <code>UP</code> or <code>DOWN</code>). | |
| 280 * | |
| 281 * @return the alignment | |
| 282 * | |
| 283 * @exception SWTException <ul> | |
| 284 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 285 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 286 * </ul> | |
| 287 */ | |
| 288 public int getAlignment () { | |
| 289 checkWidget (); | |
| 44 | 290 if ((style & SWT.ARROW) !is 0) { |
| 291 if ((style & SWT.UP) !is 0) return SWT.UP; | |
| 292 if ((style & SWT.DOWN) !is 0) return SWT.DOWN; | |
| 293 if ((style & SWT.LEFT) !is 0) return SWT.LEFT; | |
| 294 if ((style & SWT.RIGHT) !is 0) return SWT.RIGHT; | |
| 37 | 295 return SWT.UP; |
| 296 } | |
| 44 | 297 if ((style & SWT.LEFT) !is 0) return SWT.LEFT; |
| 298 if ((style & SWT.CENTER) !is 0) return SWT.CENTER; | |
| 299 if ((style & SWT.RIGHT) !is 0) return SWT.RIGHT; | |
| 37 | 300 return SWT.LEFT; |
| 301 } | |
| 302 | |
| 303 /** | |
| 304 * Returns the receiver's image if it has one, or null | |
| 305 * if it does not. | |
| 306 * | |
| 307 * @return the receiver's image | |
| 308 * | |
| 309 * @exception SWTException <ul> | |
| 310 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 311 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 312 * </ul> | |
| 313 */ | |
| 314 public Image getImage () { | |
| 315 checkWidget (); | |
| 316 return image; | |
| 317 } | |
| 318 | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
319 override char[] getNameText () { |
| 37 | 320 return getText (); |
| 321 } | |
| 322 | |
| 323 /** | |
| 324 * Returns <code>true</code> if the receiver is selected, | |
| 325 * and false otherwise. | |
| 326 * <p> | |
| 327 * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, | |
| 328 * it is selected when it is checked. When it is of type <code>TOGGLE</code>, | |
| 329 * it is selected when it is pushed in. If the receiver is of any other type, | |
| 330 * this method returns false. | |
| 331 * | |
| 332 * @return the selection state | |
| 333 * | |
| 334 * @exception SWTException <ul> | |
| 335 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 336 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 337 * </ul> | |
| 338 */ | |
| 44 | 339 public bool getSelection () { |
| 37 | 340 checkWidget (); |
| 44 | 341 if ((style & (SWT.CHECK | SWT.RADIO | SWT.TOGGLE)) is 0) return false; |
| 342 return cast(bool)OS.gtk_toggle_button_get_active (cast(GtkToggleButton*)handle); | |
| 37 | 343 } |
| 344 | |
| 345 /** | |
| 346 * Returns the receiver's text, which will be an empty | |
| 347 * string if it has never been set or if the receiver is | |
| 348 * an <code>ARROW</code> button. | |
| 349 * | |
| 350 * @return the receiver's text | |
| 351 * | |
| 352 * @exception SWTException <ul> | |
| 353 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 354 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 355 * </ul> | |
| 356 */ | |
| 44 | 357 public char[] getText () { |
| 37 | 358 checkWidget(); |
| 44 | 359 if ((style & SWT.ARROW) !is 0) return ""; |
| 37 | 360 return text; |
| 361 } | |
| 362 | |
| 44 | 363 override int /*long*/ gtk_button_press_event (GtkWidget* widget, GdkEventButton* event) { |
| 364 auto result = super.gtk_button_press_event (widget, event); | |
| 365 if (result !is 0) return result; | |
| 366 if ((style & SWT.RADIO) !is 0) selected = getSelection (); | |
| 37 | 367 return result; |
| 368 } | |
| 369 | |
| 44 | 370 override int /*long*/ gtk_clicked (GtkWidget* widget) { |
| 371 if ((style & SWT.RADIO) !is 0) { | |
| 372 if ((parent.getStyle () & SWT.NO_RADIO_GROUP) !is 0) { | |
| 37 | 373 setSelection (!selected); |
| 374 } else { | |
| 375 selectRadio (); | |
| 376 } | |
| 377 } | |
| 378 postEvent (SWT.Selection); | |
| 379 return 0; | |
| 380 } | |
| 381 | |
| 44 | 382 override int /*long*/ gtk_focus_in_event (GtkWidget* widget, GdkEventFocus* event) { |
| 383 auto result = super.gtk_focus_in_event (widget, event); | |
| 37 | 384 // widget could be disposed at this point |
| 44 | 385 if (handle is null) return 0; |
| 386 if ((style & SWT.PUSH) !is 0 && OS.GTK_WIDGET_HAS_DEFAULT (handle)) { | |
| 37 | 387 Decorations menuShell = menuShell (); |
| 388 menuShell.defaultButton = this; | |
| 389 } | |
| 390 return result; | |
| 391 } | |
| 392 | |
| 44 | 393 override int /*long*/ gtk_focus_out_event (GtkWidget* widget, GdkEventFocus* event) { |
| 394 auto result = super.gtk_focus_out_event (widget, event); | |
| 37 | 395 // widget could be disposed at this point |
| 44 | 396 if (handle is null) return 0; |
| 397 if ((style & SWT.PUSH) !is 0 && !OS.GTK_WIDGET_HAS_DEFAULT (handle)) { | |
| 37 | 398 Decorations menuShell = menuShell (); |
| 44 | 399 if (menuShell.defaultButton is this) { |
| 37 | 400 menuShell.defaultButton = null; |
| 401 } | |
| 402 } | |
| 403 return result; | |
| 404 } | |
| 405 | |
| 44 | 406 override int /*long*/ gtk_key_press_event (GtkWidget* widget, GdkEventKey* event) { |
| 407 auto result = super.gtk_key_press_event (widget, event); | |
| 408 if (result !is 0) return result; | |
| 409 if ((style & SWT.RADIO) !is 0) selected = getSelection (); | |
| 37 | 410 return result; |
| 411 } | |
| 412 | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
413 override void hookEvents () { |
| 37 | 414 super.hookEvents(); |
| 44 | 415 OS.g_signal_connect_closure (handle, OS.clicked.ptr, display.closures [CLICKED], false); |
| 416 if (labelHandle !is null) { | |
| 417 OS.g_signal_connect_closure_by_id (cast(void*)labelHandle, display.signalIds [MNEMONIC_ACTIVATE], 0, display.closures [MNEMONIC_ACTIVATE], false); | |
| 37 | 418 } |
| 419 } | |
| 420 | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
421 override bool isDescribedByLabel () { |
| 37 | 422 return false; |
| 423 } | |
| 424 | |
| 44 | 425 alias Control.mnemonicHit mnemonicHit; |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
426 override bool mnemonicHit (char key) { |
| 44 | 427 if (labelHandle is null) return false; |
| 428 bool result = super.mnemonicHit (labelHandle, key); | |
| 37 | 429 if (result) setFocus (); |
| 430 return result; | |
| 431 } | |
| 432 | |
| 44 | 433 alias Control.mnemonicMatch mnemonicMatch; |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
434 override bool mnemonicMatch (char key) { |
| 44 | 435 if (labelHandle is null) return false; |
| 37 | 436 return mnemonicMatch (labelHandle, key); |
| 437 } | |
| 438 | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
439 override void register () { |
| 37 | 440 super.register (); |
| 44 | 441 if (boxHandle !is null) display.addWidget (boxHandle, this); |
| 442 if (labelHandle !is null) display.addWidget (labelHandle, this); | |
| 443 if (imageHandle !is null) display.addWidget (imageHandle, this); | |
| 444 if (arrowHandle !is null) display.addWidget (arrowHandle, this); | |
| 37 | 445 } |
| 446 | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
447 override void releaseHandle () { |
| 37 | 448 super.releaseHandle (); |
| 44 | 449 boxHandle = imageHandle = labelHandle = arrowHandle = null; |
| 37 | 450 } |
| 451 | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
452 override void releaseWidget () { |
| 37 | 453 super.releaseWidget (); |
| 44 | 454 if (groupHandle !is null) OS.g_object_unref (groupHandle); |
| 455 groupHandle = null; | |
| 456 if (imageList !is null) imageList.dispose (); | |
| 37 | 457 imageList = null; |
| 458 image = null; | |
| 459 text = null; | |
| 460 } | |
| 461 | |
| 462 /** | |
| 463 * Removes the listener from the collection of listeners who will | |
| 464 * be notified when the control is selected by the user. | |
| 465 * | |
| 466 * @param listener the listener which should no longer be notified | |
| 467 * | |
| 468 * @exception IllegalArgumentException <ul> | |
| 469 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> | |
| 470 * </ul> | |
| 471 * @exception SWTException <ul> | |
| 472 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 473 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 474 * </ul> | |
| 475 * | |
| 476 * @see SelectionListener | |
| 477 * @see #addSelectionListener | |
| 478 */ | |
| 479 public void removeSelectionListener (SelectionListener listener) { | |
| 480 checkWidget(); | |
| 44 | 481 if (listener is null) error (SWT.ERROR_NULL_ARGUMENT); |
| 482 if (eventTable is null) return; | |
| 37 | 483 eventTable.unhook (SWT.Selection, listener); |
| 484 eventTable.unhook (SWT.DefaultSelection,listener); | |
| 485 } | |
| 486 | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
487 override void resizeHandle (int width, int height) { |
| 37 | 488 super.resizeHandle (width, height); |
| 489 /* | |
| 490 * Feature in GTK, GtkCheckButton and GtkRadioButton allocate | |
| 491 * only the minimum size necessary for its child. This causes the child | |
| 492 * alignment to fail. The fix is to set the child size to the size | |
| 493 * of the button. | |
| 494 */ | |
| 44 | 495 if ((style & (SWT.CHECK | SWT.RADIO)) !is 0) { |
| 37 | 496 OS.gtk_widget_set_size_request (boxHandle, width, -1); |
| 497 } | |
| 498 } | |
| 499 | |
| 500 void selectRadio () { | |
| 501 /* | |
| 502 * This code is intentionally commented. When two groups | |
| 503 * of radio buttons with the same parent are separated by | |
| 504 * another control, the correct behavior should be that | |
| 505 * the two groups act independently. This is consistent | |
| 506 * with radio tool and menu items. The commented code | |
| 507 * implements this behavior. | |
| 508 */ | |
| 509 // int index = 0; | |
| 510 // Control [] children = parent._getChildren (); | |
| 44 | 511 // while (index < children.length && children [index] !is this) index++; |
| 37 | 512 // int i = index - 1; |
| 513 // while (i >= 0 && children [i].setRadioSelection (false)) --i; | |
| 514 // int j = index + 1; | |
| 515 // while (j < children.length && children [j].setRadioSelection (false)) j++; | |
| 516 // setSelection (true); | |
| 517 Control [] children = parent._getChildren (); | |
| 518 for (int i=0; i<children.length; i++) { | |
| 519 Control child = children [i]; | |
| 44 | 520 if (this !is child) child.setRadioSelection (false); |
| 37 | 521 } |
| 522 setSelection (true); | |
| 523 } | |
| 524 | |
| 525 /** | |
| 526 * Controls how text, images and arrows will be displayed | |
| 527 * in the receiver. The argument should be one of | |
| 528 * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code> | |
| 529 * unless the receiver is an <code>ARROW</code> button, in | |
| 530 * which case, the argument indicates the direction of | |
| 531 * the arrow (one of <code>LEFT</code>, <code>RIGHT</code>, | |
| 532 * <code>UP</code> or <code>DOWN</code>). | |
| 533 * | |
| 534 * @param alignment the new alignment | |
| 535 * | |
| 536 * @exception SWTException <ul> | |
| 537 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 538 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 539 * </ul> | |
| 540 */ | |
| 541 public void setAlignment (int alignment) { | |
| 542 checkWidget (); | |
| 543 _setAlignment (alignment); | |
| 544 } | |
| 545 | |
| 546 void _setAlignment (int alignment) { | |
| 44 | 547 if ((style & SWT.ARROW) !is 0) { |
| 548 if ((style & (SWT.UP | SWT.DOWN | SWT.LEFT | SWT.RIGHT)) is 0) return; | |
| 37 | 549 style &= ~(SWT.UP | SWT.DOWN | SWT.LEFT | SWT.RIGHT); |
| 550 style |= alignment & (SWT.UP | SWT.DOWN | SWT.LEFT | SWT.RIGHT); | |
| 551 int arrow_type = OS.GTK_ARROW_UP; | |
| 44 | 552 bool isRTL = (style & SWT.RIGHT_TO_LEFT) !is 0; |
| 37 | 553 switch (alignment) { |
| 554 case SWT.UP: arrow_type = OS.GTK_ARROW_UP; break; | |
| 555 case SWT.DOWN: arrow_type = OS.GTK_ARROW_DOWN; break; | |
| 556 case SWT.LEFT: arrow_type = isRTL ? OS.GTK_ARROW_RIGHT : OS.GTK_ARROW_LEFT; break; | |
| 557 case SWT.RIGHT: arrow_type = isRTL ? OS.GTK_ARROW_LEFT : OS.GTK_ARROW_RIGHT; break; | |
|
55
93981635e709
Checked and inserted missing default switch cases.
Frank Benoit <benoit@tionex.de>
parents:
44
diff
changeset
|
558 default: |
| 37 | 559 } |
| 44 | 560 OS.gtk_arrow_set (cast(GtkArrow*)arrowHandle, arrow_type, OS.GTK_SHADOW_OUT); |
| 37 | 561 return; |
| 562 } | |
| 44 | 563 if ((alignment & (SWT.LEFT | SWT.RIGHT | SWT.CENTER)) is 0) return; |
| 37 | 564 style &= ~(SWT.LEFT | SWT.RIGHT | SWT.CENTER); |
| 565 style |= alignment & (SWT.LEFT | SWT.RIGHT | SWT.CENTER); | |
| 566 /* Alignment not honoured when image and text are visible */ | |
| 44 | 567 bool bothVisible = OS.GTK_WIDGET_VISIBLE (labelHandle) && OS.GTK_WIDGET_VISIBLE (imageHandle); |
| 37 | 568 if (bothVisible) { |
| 44 | 569 if ((style & (SWT.RADIO | SWT.CHECK)) !is 0) alignment = SWT.LEFT; |
| 570 if ((style & (SWT.PUSH | SWT.TOGGLE)) !is 0) alignment = SWT.CENTER; | |
| 37 | 571 } |
| 44 | 572 if ((alignment & SWT.LEFT) !is 0) { |
| 37 | 573 if (bothVisible) { |
| 44 | 574 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, labelHandle, false, false, 0, OS.GTK_PACK_START); |
| 575 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, imageHandle, false, false, 0, OS.GTK_PACK_START); | |
| 37 | 576 } |
| 44 | 577 OS.gtk_misc_set_alignment (cast(GtkMisc*)labelHandle, 0.0f, 0.5f); |
| 578 OS.gtk_label_set_justify (cast(GtkLabel*)labelHandle, OS.GTK_JUSTIFY_LEFT); | |
| 579 OS.gtk_misc_set_alignment (cast(GtkMisc*)imageHandle, 0.0f, 0.5f); | |
| 37 | 580 return; |
| 581 } | |
| 44 | 582 if ((alignment & SWT.CENTER) !is 0) { |
| 37 | 583 if (bothVisible) { |
| 44 | 584 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, labelHandle, true, true, 0, OS.GTK_PACK_END); |
| 585 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, imageHandle, true, true, 0, OS.GTK_PACK_START); | |
| 586 OS.gtk_misc_set_alignment (cast(GtkMisc*)labelHandle, 0f, 0.5f); | |
| 587 OS.gtk_misc_set_alignment (cast(GtkMisc*)imageHandle, 1f, 0.5f); | |
| 37 | 588 } else { |
| 44 | 589 OS.gtk_misc_set_alignment (cast(GtkMisc*)labelHandle, 0.5f, 0.5f); |
| 590 OS.gtk_label_set_justify (cast(GtkLabel*)labelHandle, OS.GTK_JUSTIFY_CENTER); | |
| 591 OS.gtk_misc_set_alignment (cast(GtkMisc*)imageHandle, 0.5f, 0.5f); | |
| 37 | 592 } |
| 593 return; | |
| 594 } | |
| 44 | 595 if ((alignment & SWT.RIGHT) !is 0) { |
| 37 | 596 if (bothVisible) { |
| 44 | 597 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, labelHandle, false, false, 0, OS.GTK_PACK_END); |
| 598 OS.gtk_box_set_child_packing (cast(GtkBox*)boxHandle, imageHandle, false, false, 0, OS.GTK_PACK_END); | |
| 37 | 599 } |
| 44 | 600 OS.gtk_misc_set_alignment (cast(GtkMisc*)labelHandle, 1.0f, 0.5f); |
| 601 OS.gtk_label_set_justify (cast(GtkLabel*)labelHandle, OS.GTK_JUSTIFY_RIGHT); | |
| 602 OS.gtk_misc_set_alignment (cast(GtkMisc*)imageHandle, 1.0f, 0.5f); | |
| 37 | 603 return; |
| 604 } | |
| 605 } | |
| 606 | |
| 44 | 607 alias Control.setBackgroundColor setBackgroundColor; |
| 608 override void setBackgroundColor (GdkColor* color) { | |
| 37 | 609 super.setBackgroundColor (color); |
| 610 setBackgroundColor(fixedHandle, color); | |
| 44 | 611 if (labelHandle !is null) setBackgroundColor(labelHandle, color); |
| 612 if (imageHandle !is null) setBackgroundColor(imageHandle, color); | |
| 37 | 613 } |
| 614 | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
615 override void setFontDescription (PangoFontDescription* font) { |
| 37 | 616 super.setFontDescription (font); |
| 44 | 617 if (labelHandle !is null) OS.gtk_widget_modify_font (labelHandle, font); |
| 618 if (imageHandle !is null) OS.gtk_widget_modify_font (imageHandle, font); | |
| 37 | 619 } |
| 620 | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
621 override bool setRadioSelection (bool value) { |
| 44 | 622 if ((style & SWT.RADIO) is 0) return false; |
| 623 if (getSelection () !is value) { | |
| 37 | 624 setSelection (value); |
| 625 postEvent (SWT.Selection); | |
| 626 } | |
| 627 return true; | |
| 628 } | |
| 629 | |
| 44 | 630 alias Control.setForegroundColor setForegroundColor; |
| 631 override void setForegroundColor (GdkColor* color) { | |
| 37 | 632 super.setForegroundColor (color); |
| 633 setForegroundColor (fixedHandle, color); | |
| 44 | 634 if (labelHandle !is null) setForegroundColor (labelHandle, color); |
| 635 if (imageHandle !is null) setForegroundColor (imageHandle, color); | |
| 37 | 636 } |
| 637 | |
| 638 /** | |
| 639 * Sets the receiver's image to the argument, which may be | |
| 640 * <code>null</code> indicating that no image should be displayed. | |
| 641 * <p> | |
| 642 * Note that a Button can display an image and text simultaneously | |
| 643 * on Windows (starting with XP), GTK+ and OSX. On other platforms, | |
| 644 * a Button that has an image and text set into it will display the | |
| 645 * image or text that was set most recently. | |
| 646 * </p> | |
| 647 * @param image the image to display on the receiver (may be <code>null</code>) | |
| 648 * | |
| 649 * @exception IllegalArgumentException <ul> | |
| 650 * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> | |
| 651 * </ul> | |
| 652 * @exception SWTException <ul> | |
| 653 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 654 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 655 * </ul> | |
| 656 */ | |
| 657 public void setImage (Image image) { | |
| 658 checkWidget (); | |
| 44 | 659 if ((style & SWT.ARROW) !is 0) return; |
| 660 if (imageList !is null) imageList.dispose (); | |
| 37 | 661 imageList = null; |
| 44 | 662 if (image !is null) { |
| 37 | 663 if (image.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| 664 imageList = new ImageList (); | |
| 665 int imageIndex = imageList.add (image); | |
| 44 | 666 auto pixbuf = imageList.getPixbuf (imageIndex); |
| 667 OS.gtk_image_set_from_pixbuf (cast(GtkImage*)imageHandle, pixbuf); | |
| 668 if (text.length is 0) OS.gtk_widget_hide (labelHandle); | |
| 37 | 669 OS.gtk_widget_show (imageHandle); |
| 670 } else { | |
| 44 | 671 OS.gtk_image_set_from_pixbuf (cast(GtkImage*)imageHandle, null); |
| 37 | 672 OS.gtk_widget_show (labelHandle); |
| 673 OS.gtk_widget_hide (imageHandle); | |
| 674 } | |
| 675 this.image = image; | |
| 676 _setAlignment (style); | |
| 677 } | |
| 678 | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
679 override void setOrientation () { |
| 37 | 680 super.setOrientation (); |
| 44 | 681 if ((style & SWT.RIGHT_TO_LEFT) !is 0) { |
| 682 if (labelHandle !is null) OS.gtk_widget_set_direction (labelHandle, OS.GTK_TEXT_DIR_RTL); | |
| 683 if (imageHandle !is null) OS.gtk_widget_set_direction (imageHandle, OS.GTK_TEXT_DIR_RTL); | |
| 684 if (arrowHandle !is null) { | |
| 37 | 685 switch (style & (SWT.LEFT | SWT.RIGHT)) { |
| 44 | 686 case SWT.LEFT: OS.gtk_arrow_set (cast(GtkArrow*)arrowHandle, OS.GTK_ARROW_RIGHT, OS.GTK_SHADOW_OUT); break; |
| 687 case SWT.RIGHT: OS.gtk_arrow_set (cast(GtkArrow*)arrowHandle, OS.GTK_ARROW_LEFT, OS.GTK_SHADOW_OUT); break; | |
|
55
93981635e709
Checked and inserted missing default switch cases.
Frank Benoit <benoit@tionex.de>
parents:
44
diff
changeset
|
688 default: |
| 37 | 689 } |
| 690 } | |
| 691 } | |
| 692 } | |
| 693 | |
| 694 /** | |
| 695 * Sets the selection state of the receiver, if it is of type <code>CHECK</code>, | |
| 696 * <code>RADIO</code>, or <code>TOGGLE</code>. | |
| 697 * | |
| 698 * <p> | |
| 699 * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, | |
| 700 * it is selected when it is checked. When it is of type <code>TOGGLE</code>, | |
| 701 * it is selected when it is pushed in. | |
| 702 * | |
| 703 * @param selected the new selection state | |
| 704 * | |
| 705 * @exception SWTException <ul> | |
| 706 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 707 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 708 * </ul> | |
| 709 */ | |
| 44 | 710 public void setSelection (bool selected) { |
| 37 | 711 checkWidget(); |
| 44 | 712 if ((style & (SWT.CHECK | SWT.RADIO | SWT.TOGGLE)) is 0) return; |
| 713 OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, cast(void*)CLICKED); | |
| 714 OS.gtk_toggle_button_set_active (cast(GtkToggleButton*)handle, selected); | |
| 715 if ((style & SWT.RADIO) !is 0) OS.gtk_toggle_button_set_active (cast(GtkToggleButton*)groupHandle, !selected); | |
| 716 OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, cast(void*)CLICKED); | |
| 37 | 717 } |
| 718 | |
| 719 /** | |
| 720 * Sets the receiver's text. | |
| 721 * <p> | |
| 722 * This method sets the button label. The label may include | |
| 723 * the mnemonic character but must not contain line delimiters. | |
| 724 * </p> | |
| 725 * <p> | |
| 726 * Mnemonics are indicated by an '&' that causes the next | |
| 727 * character to be the mnemonic. When the user presses a | |
| 728 * key sequence that matches the mnemonic, a selection | |
| 729 * event occurs. On most platforms, the mnemonic appears | |
| 730 * underlined but may be emphasized in a platform specific | |
| 731 * manner. The mnemonic indicator character '&' can be | |
| 732 * escaped by doubling it in the string, causing a single | |
| 733 * '&' to be displayed. | |
| 734 * </p><p> | |
| 735 * Note that a Button can display an image and text simultaneously | |
| 736 * on Windows (starting with XP), GTK+ and OSX. On other platforms, | |
| 737 * a Button that has an image and text set into it will display the | |
| 738 * image or text that was set most recently. | |
| 739 * </p> | |
| 740 * @param string the new text | |
| 741 * | |
| 742 * @exception IllegalArgumentException <ul> | |
| 743 * <li>ERROR_NULL_ARGUMENT - if the text is null</li> | |
| 744 * </ul> | |
| 745 * @exception SWTException <ul> | |
| 746 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 747 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> | |
| 748 * </ul> | |
| 749 */ | |
| 44 | 750 public void setText (char[] string) { |
| 37 | 751 checkWidget (); |
| 44 | 752 if (string is null) error (SWT.ERROR_NULL_ARGUMENT); |
| 753 if ((style & SWT.ARROW) !is 0) return; | |
| 37 | 754 text = string; |
| 755 char [] chars = fixMnemonic (string); | |
| 44 | 756 OS.gtk_label_set_text_with_mnemonic (cast(GtkLabel*)labelHandle, toStringz(chars)); |
| 757 if (image is null) OS.gtk_widget_hide (imageHandle); | |
| 37 | 758 OS.gtk_widget_show (labelHandle); |
| 759 _setAlignment (style); | |
| 760 } | |
| 761 | |
|
58
a5c274fa5af9
extended helloworld crashing
Frank Benoit <benoit@tionex.de>
parents:
55
diff
changeset
|
762 override void showWidget () { |
| 37 | 763 super.showWidget (); |
| 44 | 764 if (boxHandle !is null) OS.gtk_widget_show (boxHandle); |
| 765 if (labelHandle !is null) OS.gtk_widget_show (labelHandle); | |
| 766 if (arrowHandle !is null) OS.gtk_widget_show (arrowHandle); | |
| 37 | 767 } |
| 768 | |
| 44 | 769 alias Control.traversalCode traversalCode; |
| 770 override int traversalCode (int key, GdkEventKey* event) { | |
| 37 | 771 int code = super.traversalCode (key, event); |
| 44 | 772 if ((style & SWT.RADIO) !is 0) code |= SWT.TRAVERSE_ARROW_NEXT | SWT.TRAVERSE_ARROW_PREVIOUS; |
| 37 | 773 return code; |
| 774 } | |
| 775 | |
| 776 } |