Mercurial > projects > dwt-win
annotate dwt/graphics/Cursor.d @ 197:184ab53b7785
Changes and fixes for jface
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Thu, 10 Apr 2008 11:19:49 +0200 |
| parents | 0a96e5a30470 |
| children | ab60f3309436 |
| 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; | |
| 28 | |
| 29 /** | |
| 30 * Instances of this class manage operating system resources that | |
| 31 * specify the appearance of the on-screen pointer. To create a | |
| 32 * cursor you specify the device and either a simple cursor style | |
| 33 * describing one of the standard operating system provided cursors | |
| 34 * or the image and mask data for the desired appearance. | |
| 35 * <p> | |
| 36 * Application code must explicitly invoke the <code>Cursor.dispose()</code> | |
| 37 * method to release the operating system resources managed by each instance | |
| 38 * when those instances are no longer required. | |
| 39 * </p> | |
| 40 * <dl> | |
| 41 * <dt><b>Styles:</b></dt> | |
| 42 * <dd> | |
| 43 * CURSOR_ARROW, CURSOR_WAIT, CURSOR_CROSS, CURSOR_APPSTARTING, CURSOR_HELP, | |
| 44 * CURSOR_SIZEALL, CURSOR_SIZENESW, CURSOR_SIZENS, CURSOR_SIZENWSE, CURSOR_SIZEWE, | |
| 45 * CURSOR_SIZEN, CURSOR_SIZES, CURSOR_SIZEE, CURSOR_SIZEW, CURSOR_SIZENE, CURSOR_SIZESE, | |
| 46 * CURSOR_SIZESW, CURSOR_SIZENW, CURSOR_UPARROW, CURSOR_IBEAM, CURSOR_NO, CURSOR_HAND | |
| 47 * </dd> | |
| 48 * </dl> | |
| 49 * <p> | |
| 50 * Note: Only one of the above styles may be specified. | |
| 51 * </p> | |
| 52 */ | |
| 53 | |
| 54 public final class Cursor : Resource { | |
| 55 | |
| 56 /** | |
| 57 * the handle to the OS cursor resource | |
| 58 * (Warning: This field is platform dependent) | |
| 59 * <p> | |
| 60 * <b>IMPORTANT:</b> This field is <em>not</em> part of the DWT | |
| 61 * public API. It is marked public only so that it can be shared | |
| 62 * within the packages provided by DWT. It is not available on all | |
| 63 * platforms and should never be accessed from application code. | |
| 64 * </p> | |
| 65 */ | |
| 66 public HCURSOR handle; | |
| 67 | |
| 68 bool isIcon; | |
| 69 | |
| 70 /** | |
| 71 * data used to create a HAND cursor. | |
| 72 */ | |
| 73 static const byte[] HAND_SOURCE = [ | |
| 74 cast(byte)0xf9,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 75 cast(byte)0xf0,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 76 cast(byte)0xf0,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 77 cast(byte)0xf0,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 78 cast(byte)0xf0,cast(byte)0x3f,cast(byte)0xff,cast(byte)0xff, | |
| 79 cast(byte)0xf0,cast(byte)0x07,cast(byte)0xff,cast(byte)0xff, | |
| 80 cast(byte)0xf0,cast(byte)0x03,cast(byte)0xff,cast(byte)0xff, | |
| 81 cast(byte)0xf0,cast(byte)0x00,cast(byte)0xff,cast(byte)0xff, | |
| 82 | |
| 83 cast(byte)0x10,cast(byte)0x00,cast(byte)0x7f,cast(byte)0xff, | |
| 84 cast(byte)0x00,cast(byte)0x00,cast(byte)0x7f,cast(byte)0xff, | |
| 85 cast(byte)0x80,cast(byte)0x00,cast(byte)0x7f,cast(byte)0xff, | |
| 86 cast(byte)0xc0,cast(byte)0x00,cast(byte)0x7f,cast(byte)0xff, | |
| 87 cast(byte)0xe0,cast(byte)0x00,cast(byte)0x7f,cast(byte)0xff, | |
| 88 cast(byte)0xf0,cast(byte)0x00,cast(byte)0x7f,cast(byte)0xff, | |
| 89 cast(byte)0xf8,cast(byte)0x00,cast(byte)0xff,cast(byte)0xff, | |
| 90 cast(byte)0xfc,cast(byte)0x01,cast(byte)0xff,cast(byte)0xff, | |
| 91 | |
| 92 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 93 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 94 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 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 | |
| 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 cast(byte)0xff,cast(byte)0xff,cast(byte)0xff,cast(byte)0xff, | |
| 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 ]; | |
| 110 static const byte[] HAND_MASK = [ | |
| 111 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 112 cast(byte)0x06,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 113 cast(byte)0x06,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 114 cast(byte)0x06,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)0xc0,cast(byte)0x00,cast(byte)0x00, | |
| 117 cast(byte)0x06,cast(byte)0xd8,cast(byte)0x00,cast(byte)0x00, | |
| 118 cast(byte)0x06,cast(byte)0xd8,cast(byte)0x00,cast(byte)0x00, | |
| 119 | |
| 120 cast(byte)0x07,cast(byte)0xdb,cast(byte)0x00,cast(byte)0x00, | |
| 121 cast(byte)0x67,cast(byte)0xfb,cast(byte)0x00,cast(byte)0x00, | |
| 122 cast(byte)0x3f,cast(byte)0xff,cast(byte)0x00,cast(byte)0x00, | |
| 123 cast(byte)0x1f,cast(byte)0xff,cast(byte)0x00,cast(byte)0x00, | |
| 124 cast(byte)0x0f,cast(byte)0xff,cast(byte)0x00,cast(byte)0x00, | |
| 125 cast(byte)0x07,cast(byte)0xff,cast(byte)0x00,cast(byte)0x00, | |
| 126 cast(byte)0x03,cast(byte)0xfe,cast(byte)0x00,cast(byte)0x00, | |
| 127 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 128 | |
| 129 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 130 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 131 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 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 | |
| 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 cast(byte)0x00,cast(byte)0x00,cast(byte)0x00,cast(byte)0x00, | |
| 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 ]; | |
| 147 | |
| 148 /** | |
| 149 * Prevents uninitialized instances from being created outside the package. | |
| 150 */ | |
| 151 this() { | |
| 152 } | |
| 153 | |
| 154 /** | |
| 155 * Constructs a new cursor given a device and a style | |
| 156 * constant describing the desired cursor appearance. | |
| 157 * <p> | |
| 158 * You must dispose the cursor when it is no longer required. | |
| 159 * </p> | |
| 160 * | |
| 161 * @param device the device on which to allocate the cursor | |
| 162 * @param style the style of cursor to allocate | |
| 163 * | |
| 164 * @exception IllegalArgumentException <ul> | |
| 165 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 166 * <li>ERROR_INVALID_ARGUMENT - when an unknown style is specified</li> | |
| 167 * </ul> | |
| 168 * @exception DWTError <ul> | |
| 169 * <li>ERROR_NO_HANDLES - if a handle could not be obtained for cursor creation</li> | |
| 170 * </ul> | |
| 171 * | |
| 172 * @see DWT#CURSOR_ARROW | |
| 173 * @see DWT#CURSOR_WAIT | |
| 174 * @see DWT#CURSOR_CROSS | |
| 175 * @see DWT#CURSOR_APPSTARTING | |
| 176 * @see DWT#CURSOR_HELP | |
| 177 * @see DWT#CURSOR_SIZEALL | |
| 178 * @see DWT#CURSOR_SIZENESW | |
| 179 * @see DWT#CURSOR_SIZENS | |
| 180 * @see DWT#CURSOR_SIZENWSE | |
| 181 * @see DWT#CURSOR_SIZEWE | |
| 182 * @see DWT#CURSOR_SIZEN | |
| 183 * @see DWT#CURSOR_SIZES | |
| 184 * @see DWT#CURSOR_SIZEE | |
| 185 * @see DWT#CURSOR_SIZEW | |
| 186 * @see DWT#CURSOR_SIZENE | |
| 187 * @see DWT#CURSOR_SIZESE | |
| 188 * @see DWT#CURSOR_SIZESW | |
| 189 * @see DWT#CURSOR_SIZENW | |
| 190 * @see DWT#CURSOR_UPARROW | |
| 191 * @see DWT#CURSOR_IBEAM | |
| 192 * @see DWT#CURSOR_NO | |
| 193 * @see DWT#CURSOR_HAND | |
| 194 */ | |
| 195 public this(Device device, int style) { | |
| 196 if (device is null) device = Device.getDevice(); | |
| 197 if (device is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 198 this.device = device; | |
| 199 int lpCursorName = 0; | |
| 200 switch (style) { | |
| 201 case DWT.CURSOR_HAND: lpCursorName = OS.IDC_HAND; break; | |
| 202 case DWT.CURSOR_ARROW: lpCursorName = OS.IDC_ARROW; break; | |
| 203 case DWT.CURSOR_WAIT: lpCursorName = OS.IDC_WAIT; break; | |
| 204 case DWT.CURSOR_CROSS: lpCursorName = OS.IDC_CROSS; break; | |
| 205 case DWT.CURSOR_APPSTARTING: lpCursorName = OS.IDC_APPSTARTING; break; | |
| 206 case DWT.CURSOR_HELP: lpCursorName = OS.IDC_HELP; break; | |
| 207 case DWT.CURSOR_SIZEALL: lpCursorName = OS.IDC_SIZEALL; break; | |
| 208 case DWT.CURSOR_SIZENESW: lpCursorName = OS.IDC_SIZENESW; break; | |
| 209 case DWT.CURSOR_SIZENS: lpCursorName = OS.IDC_SIZENS; break; | |
| 210 case DWT.CURSOR_SIZENWSE: lpCursorName = OS.IDC_SIZENWSE; break; | |
| 211 case DWT.CURSOR_SIZEWE: lpCursorName = OS.IDC_SIZEWE; break; | |
| 212 case DWT.CURSOR_SIZEN: lpCursorName = OS.IDC_SIZENS; break; | |
| 213 case DWT.CURSOR_SIZES: lpCursorName = OS.IDC_SIZENS; break; | |
| 214 case DWT.CURSOR_SIZEE: lpCursorName = OS.IDC_SIZEWE; break; | |
| 215 case DWT.CURSOR_SIZEW: lpCursorName = OS.IDC_SIZEWE; break; | |
| 216 case DWT.CURSOR_SIZENE: lpCursorName = OS.IDC_SIZENESW; break; | |
| 217 case DWT.CURSOR_SIZESE: lpCursorName = OS.IDC_SIZENWSE; break; | |
| 218 case DWT.CURSOR_SIZESW: lpCursorName = OS.IDC_SIZENESW; break; | |
| 219 case DWT.CURSOR_SIZENW: lpCursorName = OS.IDC_SIZENWSE; break; | |
| 220 case DWT.CURSOR_UPARROW: lpCursorName = OS.IDC_UPARROW; break; | |
| 221 case DWT.CURSOR_IBEAM: lpCursorName = OS.IDC_IBEAM; break; | |
| 222 case DWT.CURSOR_NO: lpCursorName = OS.IDC_NO; break; | |
| 223 default: | |
| 224 DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 225 } | |
| 226 handle = OS.LoadCursor(null, cast(wchar*)lpCursorName); | |
| 227 /* | |
| 228 * IDC_HAND is supported only on Windows 2000 and Windows 98. | |
| 229 * Create a hand cursor if running in other Windows platforms. | |
| 230 */ | |
| 231 if (handle is null && style is DWT.CURSOR_HAND) { | |
| 232 int width = OS.GetSystemMetrics(OS.SM_CXCURSOR); | |
| 233 int height = OS.GetSystemMetrics(OS.SM_CYCURSOR); | |
| 234 if (width is 32 && height is 32) { | |
| 235 auto hInst = OS.GetModuleHandle(null); | |
| 117 | 236 static if (OS.IsWinCE) DWT.error(DWT.ERROR_NOT_IMPLEMENTED); |
| 28 | 237 handle = OS.CreateCursor(hInst, 5, 0, 32, 32, HAND_SOURCE.ptr, HAND_MASK.ptr); |
| 238 | |
| 239 } | |
| 240 } | |
| 241 if (handle is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 242 if (device.tracking) device.new_Object(this); | |
| 243 } | |
| 244 | |
| 245 /** | |
| 246 * Constructs a new cursor given a device, image and mask | |
| 247 * data describing the desired cursor appearance, and the x | |
| 248 * and y coordinates of the <em>hotspot</em> (that is, the point | |
| 249 * within the area covered by the cursor which is considered | |
| 250 * to be where the on-screen pointer is "pointing"). | |
| 251 * <p> | |
| 252 * The mask data is allowed to be null, but in this case the source | |
| 253 * must be an ImageData representing an icon that specifies both | |
| 254 * color data and mask data. | |
| 255 * <p> | |
| 256 * You must dispose the cursor when it is no longer required. | |
| 257 * </p> | |
| 258 * | |
| 259 * @param device the device on which to allocate the cursor | |
| 260 * @param source the color data for the cursor | |
| 261 * @param mask the mask data for the cursor (or null) | |
| 262 * @param hotspotX the x coordinate of the cursor's hotspot | |
| 263 * @param hotspotY the y coordinate of the cursor's hotspot | |
| 264 * | |
| 265 * @exception IllegalArgumentException <ul> | |
| 266 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 267 * <li>ERROR_NULL_ARGUMENT - if the source is null</li> | |
| 268 * <li>ERROR_NULL_ARGUMENT - if the mask is null and the source does not have a mask</li> | |
| 269 * <li>ERROR_INVALID_ARGUMENT - if the source and the mask are not the same | |
| 270 * size, or if the hotspot is outside the bounds of the image</li> | |
| 271 * </ul> | |
| 272 * @exception DWTError <ul> | |
| 273 * <li>ERROR_NO_HANDLES - if a handle could not be obtained for cursor creation</li> | |
| 274 * </ul> | |
| 275 */ | |
| 276 public this(Device device, ImageData source, ImageData mask, int hotspotX, int hotspotY) { | |
| 277 if (device is null) device = Device.getDevice(); | |
| 278 if (device is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 279 this.device = device; | |
| 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); | |
| 309 if (device.tracking) device.new_Object(this); | |
| 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) { | |
| 340 if (device is null) device = Device.getDevice(); | |
| 341 if (device is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 342 this.device = device; | |
| 343 if (source is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 344 /* Check the hotspots */ | |
| 345 if (hotspotX >= source.width || hotspotX < 0 || | |
| 346 hotspotY >= source.height || hotspotY < 0) { | |
| 347 DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 348 } | |
| 349 ImageData mask = source.getTransparencyMask(); | |
|
197
184ab53b7785
Changes and fixes for jface
Frank Benoit <benoit@tionex.de>
parents:
175
diff
changeset
|
350 int[] result = Image.init_(device, null, source, mask); |
| 28 | 351 auto hBitmap = cast(HBITMAP)result[0]; |
| 352 auto hMask = cast(HBITMAP)result[1]; | |
| 353 /* Create the icon */ | |
| 354 ICONINFO info; | |
| 355 info.fIcon = false; | |
| 356 info.hbmColor = hBitmap; | |
| 357 info.hbmMask = hMask; | |
| 358 info.xHotspot = hotspotX; | |
| 359 info.yHotspot = hotspotY; | |
| 360 handle = OS.CreateIconIndirect(&info); | |
| 361 if (handle is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 362 OS.DeleteObject(hBitmap); | |
| 363 OS.DeleteObject(hMask); | |
| 364 isIcon = true; | |
| 365 if (device.tracking) device.new_Object(this); | |
| 366 } | |
| 367 | |
| 368 /** | |
| 369 * Disposes of the operating system resources associated with | |
| 370 * the cursor. Applications must dispose of all cursors which | |
| 371 * they allocate. | |
| 372 */ | |
|
48
9a64a7781bab
Added override and alias, first chunk. Thanks torhu for doing this patch.
Frank Benoit <benoit@tionex.de>
parents:
28
diff
changeset
|
373 override public void dispose () { |
| 28 | 374 if (handle is null) return; |
| 375 if (device.isDisposed()) return; | |
| 376 | |
| 377 /* | |
| 378 * It is an error in Windows to destroy the current | |
| 379 * cursor. Check that the cursor that is about to | |
| 380 * be destroyed is the current cursor. If so, set | |
| 381 * the current cursor to be IDC_ARROW. Note that | |
| 382 * Windows shares predefined cursors so the call to | |
| 383 * LoadCursor() does not leak. | |
| 384 */ | |
| 385 // TEMPORARY CODE | |
| 386 // if (OS.GetCursor() is handle) { | |
| 387 // OS.SetCursor(OS.LoadCursor(0, OS.IDC_ARROW)); | |
| 388 // } | |
| 389 | |
| 390 if (isIcon) { | |
| 391 OS.DestroyIcon(handle); | |
| 392 } else { | |
| 393 /* | |
| 394 * The MSDN states that one should not destroy a shared | |
| 395 * cursor, that is, one obtained from LoadCursor. | |
| 396 * However, it does not appear to do any harm, so rather | |
| 397 * than keep track of how a cursor was created, we just | |
| 398 * destroy them all. If this causes problems in the future, | |
| 399 * put the flag back in. | |
| 400 */ | |
| 117 | 401 static if (!OS.IsWinCE) OS.DestroyCursor(handle); |
| 28 | 402 } |
| 403 handle = null; | |
| 404 if (device.tracking) device.dispose_Object(this); | |
| 405 device = null; | |
| 406 } | |
| 407 | |
| 408 /** | |
| 409 * Compares the argument to the receiver, and returns true | |
| 410 * if they represent the <em>same</em> object using a class | |
| 411 * specific comparison. | |
| 412 * | |
| 413 * @param object the object to compare with this object | |
| 414 * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise | |
| 415 * | |
| 416 * @see #hashCode | |
| 417 */ | |
| 418 public override int opEquals (Object object) { | |
| 419 if (object is this) return true; | |
| 420 if (!(cast(Cursor)object)) return false; | |
| 421 Cursor cursor = cast(Cursor) object; | |
| 422 return device is cursor.device && handle is cursor.handle; | |
| 423 } | |
| 424 | |
| 425 /** | |
| 426 * Returns an integer hash code for the receiver. Any two | |
| 427 * objects that return <code>true</code> when passed to | |
| 428 * <code>equals</code> must return the same value for this | |
| 429 * method. | |
| 430 * | |
| 431 * @return the receiver's hash | |
| 432 * | |
| 433 * @see #equals | |
| 434 */ | |
| 435 public override hash_t toHash () { | |
| 436 return cast(hash_t)handle; | |
| 437 } | |
| 438 | |
| 439 /** | |
| 440 * Returns <code>true</code> if the cursor has been disposed, | |
| 441 * and <code>false</code> otherwise. | |
| 442 * <p> | |
| 443 * This method gets the dispose state for the cursor. | |
| 444 * When a cursor has been disposed, it is an error to | |
| 445 * invoke any other method using the cursor. | |
| 446 * | |
| 447 * @return <code>true</code> when the cursor is disposed and <code>false</code> otherwise | |
| 448 */ | |
|
48
9a64a7781bab
Added override and alias, first chunk. Thanks torhu for doing this patch.
Frank Benoit <benoit@tionex.de>
parents:
28
diff
changeset
|
449 override public bool isDisposed() { |
| 28 | 450 return handle is null; |
| 451 } | |
| 452 | |
| 453 /** | |
| 454 * Returns a string containing a concise, human-readable | |
| 455 * description of the receiver. | |
| 456 * | |
| 457 * @return a string representation of the receiver | |
| 458 */ | |
|
48
9a64a7781bab
Added override and alias, first chunk. Thanks torhu for doing this patch.
Frank Benoit <benoit@tionex.de>
parents:
28
diff
changeset
|
459 override public char[] toString () { |
| 28 | 460 if (isDisposed()) return "Cursor {*DISPOSED*}"; |
| 461 return Format( "Cursor {{{}}", handle ); | |
| 462 } | |
| 463 | |
| 464 /** | |
| 465 * Invokes platform specific functionality to allocate a new cursor. | |
| 466 * <p> | |
| 467 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public | |
| 468 * API for <code>Cursor</code>. It is marked public only so that it | |
| 469 * can be shared within the packages provided by DWT. It is not | |
| 470 * available on all platforms, and should never be called from | |
| 471 * application code. | |
| 472 * </p> | |
| 473 * | |
| 474 * @param device the device on which to allocate the color | |
| 475 * @param handle the handle for the cursor | |
| 476 * @return a new cursor object containing the specified device and handle | |
| 477 */ | |
| 478 public static Cursor win32_new(Device device, HCURSOR handle) { | |
| 479 if (device is null) device = Device.getDevice(); | |
| 480 Cursor cursor = new Cursor(); | |
| 481 cursor.handle = handle; | |
| 482 cursor.device = device; | |
| 483 return cursor; | |
| 484 } | |
| 485 | |
| 486 } |