Mercurial > projects > dwt-win
annotate dwt/graphics/Cursor.d @ 213:36f5cb12e1a2
Update to SWT 3.4M7
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sat, 17 May 2008 17:34:28 +0200 |
| parents | ab60f3309436 |
| children | fd9c62a2998e |
| rev | line source |
|---|---|
| 28 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2005 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 | |
| 175 | 10 * Port to the D programming language: |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 28 | 12 *******************************************************************************/ |
| 13 module dwt.graphics.Cursor; | |
| 14 | |
| 15 | |
| 16 import dwt.DWT; | |
| 17 import dwt.DWTError; | |
| 18 import dwt.internal.win32.OS; | |
| 19 | |
| 20 import dwt.graphics.Resource; | |
| 21 import dwt.graphics.Device; | |
| 22 import dwt.graphics.ImageData; | |
| 23 import dwt.graphics.RGB; | |
| 24 import dwt.graphics.PaletteData; | |
| 25 import dwt.graphics.Image; | |
| 26 | |
| 27 import tango.text.convert.Format; | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
197
diff
changeset
|
28 import dwt.dwthelper.utils; |
| 28 | 29 |
| 30 /** | |
| 31 * Instances of this class manage operating system resources that | |
| 32 * specify the appearance of the on-screen pointer. To create a | |
| 33 * cursor you specify the device and either a simple cursor style | |
| 34 * describing one of the standard operating system provided cursors | |
| 35 * or the image and mask data for the desired appearance. | |
| 36 * <p> | |
| 37 * Application code must explicitly invoke the <code>Cursor.dispose()</code> | |
| 38 * method to release the operating system resources managed by each instance | |
| 39 * when those instances are no longer required. | |
| 40 * </p> | |
| 41 * <dl> | |
| 42 * <dt><b>Styles:</b></dt> | |
| 43 * <dd> | |
| 44 * CURSOR_ARROW, CURSOR_WAIT, CURSOR_CROSS, CURSOR_APPSTARTING, CURSOR_HELP, | |
| 45 * CURSOR_SIZEALL, CURSOR_SIZENESW, CURSOR_SIZENS, CURSOR_SIZENWSE, CURSOR_SIZEWE, | |
| 46 * CURSOR_SIZEN, CURSOR_SIZES, CURSOR_SIZEE, CURSOR_SIZEW, CURSOR_SIZENE, CURSOR_SIZESE, | |
| 47 * CURSOR_SIZESW, CURSOR_SIZENW, CURSOR_UPARROW, CURSOR_IBEAM, CURSOR_NO, CURSOR_HAND | |
| 48 * </dd> | |
| 49 * </dl> | |
| 50 * <p> | |
| 51 * Note: Only one of the above styles may be specified. | |
| 52 * </p> | |
| 53 */ | |
| 54 | |
| 55 public final class Cursor : Resource { | |
| 56 | |
| 213 | 57 alias Resource.init_ init_; |
| 58 | |
| 28 | 59 /** |
| 60 * the handle to the OS cursor resource | |
| 61 * (Warning: This field is platform dependent) | |
| 62 * <p> | |
| 63 * <b>IMPORTANT:</b> This field is <em>not</em> part of the DWT | |
| 64 * public API. It is marked public only so that it can be shared | |
| 65 * within the packages provided by DWT. It is not available on all | |
| 66 * platforms and should never be accessed from application code. | |
| 67 * </p> | |
| 68 */ | |
| 69 public HCURSOR handle; | |
| 70 | |
| 71 bool isIcon; | |
| 72 | |
| 73 /** | |
| 74 * data used to create a HAND cursor. | |
| 75 */ | |
| 76 static const byte[] HAND_SOURCE = [ | |
| 77 cast(byte)0xf9,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 78 cast(byte)0xf0,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 79 cast(byte)0xf0,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 80 cast(byte)0xf0,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 81 cast(byte)0xf0,cast(byte)0x3f,cast(byte)0xff,cast(byte)0xff, | |
| 82 cast(byte)0xf0,cast(byte)0x07,cast(byte)0xff,cast(byte)0xff, | |
| 83 cast(byte)0xf0,cast(byte)0x03,cast(byte)0xff,cast(byte)0xff, | |
| 84 cast(byte)0xf0,cast(byte)0x00,cast(byte)0xff,cast(byte)0xff, | |
| 85 | |
| 86 cast(byte)0x10,cast(byte)0x00,cast(byte)0x7f,cast(byte)0xff, | |
| 87 cast(byte)0x00,cast(byte)0x00,cast(byte)0x7f,cast(byte)0xff, | |
| 88 cast(byte)0x80,cast(byte)0x00,cast(byte)0x7f,cast(byte)0xff, | |
| 89 cast(byte)0xc0,cast(byte)0x00,cast(byte)0x7f,cast(byte)0xff, | |
| 90 cast(byte)0xe0,cast(byte)0x00,cast(byte)0x7f,cast(byte)0xff, | |
| 91 cast(byte)0xf0,cast(byte)0x00,cast(byte)0x7f,cast(byte)0xff, | |
| 92 cast(byte)0xf8,cast(byte)0x00,cast(byte)0xff,cast(byte)0xff, | |
| 93 cast(byte)0xfc,cast(byte)0x01,cast(byte)0xff,cast(byte)0xff, | |
| 94 | |
| 95 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 96 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 97 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 98 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 99 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 100 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 101 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 102 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 103 | |
| 104 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 105 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 106 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 107 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 108 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 109 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 110 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 111 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff | |
| 112 ]; | |
| 113 static const byte[] HAND_MASK = [ | |
| 114 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 115 cast(byte)0x06,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 116 cast(byte)0x06,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 117 cast(byte)0x06,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 118 cast(byte)0x06,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 119 cast(byte)0x06,cast(byte)0xc0,cast(byte)0x00,cast(byte)0x00, | |
| 120 cast(byte)0x06,cast(byte)0xd8,cast(byte)0x00,cast(byte)0x00, | |
| 121 cast(byte)0x06,cast(byte)0xd8,cast(byte)0x00,cast(byte)0x00, | |
| 122 | |
| 123 cast(byte)0x07,cast(byte)0xdb,cast(byte)0x00,cast(byte)0x00, | |
| 124 cast(byte)0x67,cast(byte)0xfb,cast(byte)0x00,cast(byte)0x00, | |
| 125 cast(byte)0x3f,cast(byte)0xff,cast(byte)0x00,cast(byte)0x00, | |
| 126 cast(byte)0x1f,cast(byte)0xff,cast(byte)0x00,cast(byte)0x00, | |
| 127 cast(byte)0x0f,cast(byte)0xff,cast(byte)0x00,cast(byte)0x00, | |
| 128 cast(byte)0x07,cast(byte)0xff,cast(byte)0x00,cast(byte)0x00, | |
| 129 cast(byte)0x03,cast(byte)0xfe,cast(byte)0x00,cast(byte)0x00, | |
| 130 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 131 | |
| 132 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 133 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 134 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 135 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 136 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 137 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 138 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 139 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 140 | |
| 141 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 142 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 143 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 144 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 145 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 146 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 147 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 148 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00 | |
| 149 ]; | |
| 150 | |
| 151 /** | |
| 152 * Prevents uninitialized instances from being created outside the package. | |
| 153 */ | |
| 213 | 154 this(Device device) { |
| 155 super(device); | |
| 28 | 156 } |
| 157 | |
| 158 /** | |
| 159 * Constructs a new cursor given a device and a style | |
| 160 * constant describing the desired cursor appearance. | |
| 161 * <p> | |
| 162 * You must dispose the cursor when it is no longer required. | |
| 163 * </p> | |
| 164 * | |
| 165 * @param device the device on which to allocate the cursor | |
| 166 * @param style the style of cursor to allocate | |
| 167 * | |
| 168 * @exception IllegalArgumentException <ul> | |
| 169 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 170 * <li>ERROR_INVALID_ARGUMENT - when an unknown style is specified</li> | |
| 171 * </ul> | |
| 172 * @exception DWTError <ul> | |
| 173 * <li>ERROR_NO_HANDLES - if a handle could not be obtained for cursor creation</li> | |
| 174 * </ul> | |
| 175 * | |
| 176 * @see DWT#CURSOR_ARROW | |
| 177 * @see DWT#CURSOR_WAIT | |
| 178 * @see DWT#CURSOR_CROSS | |
| 179 * @see DWT#CURSOR_APPSTARTING | |
| 180 * @see DWT#CURSOR_HELP | |
| 181 * @see DWT#CURSOR_SIZEALL | |
| 182 * @see DWT#CURSOR_SIZENESW | |
| 183 * @see DWT#CURSOR_SIZENS | |
| 184 * @see DWT#CURSOR_SIZENWSE | |
| 185 * @see DWT#CURSOR_SIZEWE | |
| 186 * @see DWT#CURSOR_SIZEN | |
| 187 * @see DWT#CURSOR_SIZES | |
| 188 * @see DWT#CURSOR_SIZEE | |
| 189 * @see DWT#CURSOR_SIZEW | |
| 190 * @see DWT#CURSOR_SIZENE | |
| 191 * @see DWT#CURSOR_SIZESE | |
| 192 * @see DWT#CURSOR_SIZESW | |
| 193 * @see DWT#CURSOR_SIZENW | |
| 194 * @see DWT#CURSOR_UPARROW | |
| 195 * @see DWT#CURSOR_IBEAM | |
| 196 * @see DWT#CURSOR_NO | |
| 197 * @see DWT#CURSOR_HAND | |
| 198 */ | |
| 199 public this(Device device, int style) { | |
| 213 | 200 super(device); |
| 201 int /*long*/ lpCursorName = 0; | |
| 28 | 202 switch (style) { |
| 203 case DWT.CURSOR_HAND: lpCursorName = OS.IDC_HAND; break; | |
| 204 case DWT.CURSOR_ARROW: lpCursorName = OS.IDC_ARROW; break; | |
| 205 case DWT.CURSOR_WAIT: lpCursorName = OS.IDC_WAIT; break; | |
| 206 case DWT.CURSOR_CROSS: lpCursorName = OS.IDC_CROSS; break; | |
| 207 case DWT.CURSOR_APPSTARTING: lpCursorName = OS.IDC_APPSTARTING; break; | |
| 208 case DWT.CURSOR_HELP: lpCursorName = OS.IDC_HELP; break; | |
| 209 case DWT.CURSOR_SIZEALL: lpCursorName = OS.IDC_SIZEALL; break; | |
| 210 case DWT.CURSOR_SIZENESW: lpCursorName = OS.IDC_SIZENESW; break; | |
| 211 case DWT.CURSOR_SIZENS: lpCursorName = OS.IDC_SIZENS; break; | |
| 212 case DWT.CURSOR_SIZENWSE: lpCursorName = OS.IDC_SIZENWSE; break; | |
| 213 case DWT.CURSOR_SIZEWE: lpCursorName = OS.IDC_SIZEWE; break; | |
| 214 case DWT.CURSOR_SIZEN: lpCursorName = OS.IDC_SIZENS; break; | |
| 215 case DWT.CURSOR_SIZES: lpCursorName = OS.IDC_SIZENS; break; | |
| 216 case DWT.CURSOR_SIZEE: lpCursorName = OS.IDC_SIZEWE; break; | |
| 217 case DWT.CURSOR_SIZEW: lpCursorName = OS.IDC_SIZEWE; break; | |
| 218 case DWT.CURSOR_SIZENE: lpCursorName = OS.IDC_SIZENESW; break; | |
| 219 case DWT.CURSOR_SIZESE: lpCursorName = OS.IDC_SIZENWSE; break; | |
| 220 case DWT.CURSOR_SIZESW: lpCursorName = OS.IDC_SIZENESW; break; | |
| 221 case DWT.CURSOR_SIZENW: lpCursorName = OS.IDC_SIZENWSE; break; | |
| 222 case DWT.CURSOR_UPARROW: lpCursorName = OS.IDC_UPARROW; break; | |
| 223 case DWT.CURSOR_IBEAM: lpCursorName = OS.IDC_IBEAM; break; | |
| 224 case DWT.CURSOR_NO: lpCursorName = OS.IDC_NO; break; | |
| 225 default: | |
| 226 DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 227 } | |
| 228 handle = OS.LoadCursor(null, cast(wchar*)lpCursorName); | |
| 229 /* | |
| 230 * IDC_HAND is supported only on Windows 2000 and Windows 98. | |
| 231 * Create a hand cursor if running in other Windows platforms. | |
| 232 */ | |
| 233 if (handle is null && style is DWT.CURSOR_HAND) { | |
| 234 int width = OS.GetSystemMetrics(OS.SM_CXCURSOR); | |
| 235 int height = OS.GetSystemMetrics(OS.SM_CYCURSOR); | |
| 236 if (width is 32 && height is 32) { | |
| 237 auto hInst = OS.GetModuleHandle(null); | |
| 117 | 238 static if (OS.IsWinCE) DWT.error(DWT.ERROR_NOT_IMPLEMENTED); |
| 28 | 239 handle = OS.CreateCursor(hInst, 5, 0, 32, 32, HAND_SOURCE.ptr, HAND_MASK.ptr); |
| 240 | |
| 241 } | |
| 242 } | |
| 243 if (handle is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 213 | 244 init_(); |
| 28 | 245 } |
| 246 | |
| 247 /** | |
| 248 * Constructs a new cursor given a device, image and mask | |
| 249 * data describing the desired cursor appearance, and the x | |
| 250 * and y coordinates of the <em>hotspot</em> (that is, the point | |
| 251 * within the area covered by the cursor which is considered | |
| 252 * to be where the on-screen pointer is "pointing"). | |
| 253 * <p> | |
| 254 * The mask data is allowed to be null, but in this case the source | |
| 255 * must be an ImageData representing an icon that specifies both | |
| 256 * color data and mask data. | |
| 257 * <p> | |
| 258 * You must dispose the cursor when it is no longer required. | |
| 259 * </p> | |
| 260 * | |
| 261 * @param device the device on which to allocate the cursor | |
| 262 * @param source the color data for the cursor | |
| 263 * @param mask the mask data for the cursor (or null) | |
| 264 * @param hotspotX the x coordinate of the cursor's hotspot | |
| 265 * @param hotspotY the y coordinate of the cursor's hotspot | |
| 266 * | |
| 267 * @exception IllegalArgumentException <ul> | |
| 268 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 269 * <li>ERROR_NULL_ARGUMENT - if the source is null</li> | |
| 270 * <li>ERROR_NULL_ARGUMENT - if the mask is null and the source does not have a mask</li> | |
| 271 * <li>ERROR_INVALID_ARGUMENT - if the source and the mask are not the same | |
| 272 * size, or if the hotspot is outside the bounds of the image</li> | |
| 273 * </ul> | |
| 274 * @exception DWTError <ul> | |
| 275 * <li>ERROR_NO_HANDLES - if a handle could not be obtained for cursor creation</li> | |
| 276 * </ul> | |
| 277 */ | |
| 278 public this(Device device, ImageData source, ImageData mask, int hotspotX, int hotspotY) { | |
| 213 | 279 super(device); |
| 28 | 280 if (source is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
| 281 if (mask is null) { | |
| 282 if (source.getTransparencyType() !is DWT.TRANSPARENCY_MASK) { | |
| 283 DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 284 } | |
| 285 mask = source.getTransparencyMask(); | |
| 286 } | |
| 287 /* Check the bounds. Mask must be the same size as source */ | |
| 288 if (mask.width !is source.width || mask.height !is source.height) { | |
| 289 DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 290 } | |
| 291 /* Check the hotspots */ | |
| 292 if (hotspotX >= source.width || hotspotX < 0 || | |
| 293 hotspotY >= source.height || hotspotY < 0) { | |
| 294 DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 295 } | |
| 296 /* Convert depth to 1 */ | |
| 297 mask = ImageData.convertMask(mask); | |
| 298 source = ImageData.convertMask(source); | |
| 299 | |
| 300 /* Make sure source and mask scanline pad is 2 */ | |
| 301 byte[] sourceData = ImageData.convertPad(source.data, source.width, source.height, source.depth, source.scanlinePad, 2); | |
| 302 byte[] maskData = ImageData.convertPad(mask.data, mask.width, mask.height, mask.depth, mask.scanlinePad, 2); | |
| 303 | |
| 304 /* Create the cursor */ | |
| 305 auto hInst = OS.GetModuleHandle(null); | |
| 117 | 306 static if (OS.IsWinCE) DWT.error (DWT.ERROR_NOT_IMPLEMENTED); |
| 28 | 307 handle = OS.CreateCursor(hInst, hotspotX, hotspotY, source.width, source.height, sourceData.ptr, maskData.ptr); |
| 308 if (handle is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 213 | 309 init_(); |
| 28 | 310 } |
| 311 | |
| 312 /** | |
| 313 * Constructs a new cursor given a device, image data describing | |
| 314 * the desired cursor appearance, and the x and y coordinates of | |
| 315 * the <em>hotspot</em> (that is, the point within the area | |
| 316 * covered by the cursor which is considered to be where the | |
| 317 * on-screen pointer is "pointing"). | |
| 318 * <p> | |
| 319 * You must dispose the cursor when it is no longer required. | |
| 320 * </p> | |
| 321 * | |
| 322 * @param device the device on which to allocate the cursor | |
| 323 * @param source the image data for the cursor | |
| 324 * @param hotspotX the x coordinate of the cursor's hotspot | |
| 325 * @param hotspotY the y coordinate of the cursor's hotspot | |
| 326 * | |
| 327 * @exception IllegalArgumentException <ul> | |
| 328 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 329 * <li>ERROR_NULL_ARGUMENT - if the image is null</li> | |
| 330 * <li>ERROR_INVALID_ARGUMENT - if the hotspot is outside the bounds of the | |
| 331 * image</li> | |
| 332 * </ul> | |
| 333 * @exception DWTError <ul> | |
| 334 * <li>ERROR_NO_HANDLES - if a handle could not be obtained for cursor creation</li> | |
| 335 * </ul> | |
| 336 * | |
| 337 * @since 3.0 | |
| 338 */ | |
| 339 public this(Device device, ImageData source, int hotspotX, int hotspotY) { | |
| 213 | 340 super(device); |
| 28 | 341 if (source is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
| 342 /* Check the hotspots */ | |
| 343 if (hotspotX >= source.width || hotspotX < 0 || | |
| 344 hotspotY >= source.height || hotspotY < 0) { | |
| 345 DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 346 } | |
| 347 ImageData mask = source.getTransparencyMask(); | |
| 213 | 348 int[] result = Image.init_(this.device, null, source, mask); |
| 28 | 349 auto hBitmap = cast(HBITMAP)result[0]; |
| 350 auto hMask = cast(HBITMAP)result[1]; | |
| 351 /* Create the icon */ | |
| 352 ICONINFO info; | |
| 353 info.fIcon = false; | |
| 354 info.hbmColor = hBitmap; | |
| 355 info.hbmMask = hMask; | |
| 356 info.xHotspot = hotspotX; | |
| 357 info.yHotspot = hotspotY; | |
| 358 handle = OS.CreateIconIndirect(&info); | |
| 359 if (handle is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 360 OS.DeleteObject(hBitmap); | |
| 361 OS.DeleteObject(hMask); | |
| 362 isIcon = true; | |
| 213 | 363 init_(); |
| 28 | 364 } |
| 365 | |
| 213 | 366 void destroy () { |
| 28 | 367 /* |
| 368 * It is an error in Windows to destroy the current | |
| 369 * cursor. Check that the cursor that is about to | |
| 370 * be destroyed is the current cursor. If so, set | |
| 371 * the current cursor to be IDC_ARROW. Note that | |
| 372 * Windows shares predefined cursors so the call to | |
| 373 * LoadCursor() does not leak. | |
| 374 */ | |
| 375 // TEMPORARY CODE | |
| 376 // if (OS.GetCursor() is handle) { | |
| 377 // OS.SetCursor(OS.LoadCursor(0, OS.IDC_ARROW)); | |
| 378 // } | |
| 379 | |
| 380 if (isIcon) { | |
| 381 OS.DestroyIcon(handle); | |
| 382 } else { | |
| 383 /* | |
| 384 * The MSDN states that one should not destroy a shared | |
| 385 * cursor, that is, one obtained from LoadCursor. | |
| 386 * However, it does not appear to do any harm, so rather | |
| 387 * than keep track of how a cursor was created, we just | |
| 388 * destroy them all. If this causes problems in the future, | |
| 389 * put the flag back in. | |
| 390 */ | |
| 117 | 391 static if (!OS.IsWinCE) OS.DestroyCursor(handle); |
| 28 | 392 } |
| 393 handle = null; | |
| 394 } | |
| 395 | |
| 396 /** | |
| 397 * Compares the argument to the receiver, and returns true | |
| 398 * if they represent the <em>same</em> object using a class | |
| 399 * specific comparison. | |
| 400 * | |
| 401 * @param object the object to compare with this object | |
| 402 * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise | |
| 403 * | |
| 404 * @see #hashCode | |
| 405 */ | |
| 406 public override int opEquals (Object object) { | |
| 407 if (object is this) return true; | |
| 408 if (!(cast(Cursor)object)) return false; | |
| 409 Cursor cursor = cast(Cursor) object; | |
| 410 return device is cursor.device && handle is cursor.handle; | |
| 411 } | |
| 412 | |
| 413 /** | |
| 414 * Returns an integer hash code for the receiver. Any two | |
| 415 * objects that return <code>true</code> when passed to | |
| 416 * <code>equals</code> must return the same value for this | |
| 417 * method. | |
| 418 * | |
| 419 * @return the receiver's hash | |
| 420 * | |
| 421 * @see #equals | |
| 422 */ | |
| 423 public override hash_t toHash () { | |
| 424 return cast(hash_t)handle; | |
| 425 } | |
| 426 | |
| 427 /** | |
| 428 * Returns <code>true</code> if the cursor has been disposed, | |
| 429 * and <code>false</code> otherwise. | |
| 430 * <p> | |
| 431 * This method gets the dispose state for the cursor. | |
| 432 * When a cursor has been disposed, it is an error to | |
| 433 * invoke any other method using the cursor. | |
| 434 * | |
| 435 * @return <code>true</code> when the cursor is disposed and <code>false</code> otherwise | |
| 436 */ | |
|
48
9a64a7781bab
Added override and alias, first chunk. Thanks torhu for doing this patch.
Frank Benoit <benoit@tionex.de>
parents:
28
diff
changeset
|
437 override public bool isDisposed() { |
| 28 | 438 return handle is null; |
| 439 } | |
| 440 | |
| 441 /** | |
| 442 * Returns a string containing a concise, human-readable | |
| 443 * description of the receiver. | |
| 444 * | |
| 445 * @return a string representation of the receiver | |
| 446 */ | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
197
diff
changeset
|
447 override public String toString () { |
| 28 | 448 if (isDisposed()) return "Cursor {*DISPOSED*}"; |
| 449 return Format( "Cursor {{{}}", handle ); | |
| 450 } | |
| 451 | |
| 452 /** | |
| 453 * Invokes platform specific functionality to allocate a new cursor. | |
| 454 * <p> | |
| 455 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public | |
| 456 * API for <code>Cursor</code>. It is marked public only so that it | |
| 457 * can be shared within the packages provided by DWT. It is not | |
| 458 * available on all platforms, and should never be called from | |
| 459 * application code. | |
| 460 * </p> | |
| 461 * | |
| 462 * @param device the device on which to allocate the color | |
| 463 * @param handle the handle for the cursor | |
| 464 * @return a new cursor object containing the specified device and handle | |
| 465 */ | |
| 466 public static Cursor win32_new(Device device, HCURSOR handle) { | |
| 213 | 467 Cursor cursor = new Cursor(device); |
| 28 | 468 cursor.handle = handle; |
| 469 return cursor; | |
| 470 } | |
| 471 | |
| 472 } |