Mercurial > projects > dwt-linux
annotate dwt/graphics/Cursor.d @ 33:27324bbbac70
changed to regenerated BCD bindings
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Thu, 10 Jan 2008 02:18:07 +0100 |
| parents | 55c4568a2bab |
| children | 8cec8f536af3 |
| rev | line source |
|---|---|
| 18 | 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.graphics.Cursor; | |
| 12 | |
| 13 | |
| 20 | 14 import dwt.SWT; |
| 15 import dwt.graphics.Resource; | |
| 16 import dwt.graphics.Device; | |
| 17 import dwt.graphics.ImageData; | |
| 18 import dwt.graphics.RGB; | |
| 19 import dwt.graphics.PaletteData; | |
| 20 | |
| 21 import dwt.internal.gtk.OS; | |
| 22 | |
| 23 import tango.text.convert.Format; | |
| 24 import tango.stdc.string; | |
| 18 | 25 |
| 26 /** | |
| 27 * Instances of this class manage operating system resources that | |
| 28 * specify the appearance of the on-screen pointer. To create a | |
| 29 * cursor you specify the device and either a simple cursor style | |
| 30 * describing one of the standard operating system provided cursors | |
| 31 * or the image and mask data for the desired appearance. | |
| 32 * <p> | |
| 33 * Application code must explicitly invoke the <code>Cursor.dispose()</code> | |
| 34 * method to release the operating system resources managed by each instance | |
| 35 * when those instances are no longer required. | |
| 36 * </p> | |
| 37 * <dl> | |
| 38 * <dt><b>Styles:</b></dt> | |
| 39 * <dd> | |
| 40 * CURSOR_ARROW, CURSOR_WAIT, CURSOR_CROSS, CURSOR_APPSTARTING, CURSOR_HELP, | |
| 41 * CURSOR_SIZEALL, CURSOR_SIZENESW, CURSOR_SIZENS, CURSOR_SIZENWSE, CURSOR_SIZEWE, | |
| 42 * CURSOR_SIZEN, CURSOR_SIZES, CURSOR_SIZEE, CURSOR_SIZEW, CURSOR_SIZENE, CURSOR_SIZESE, | |
| 43 * CURSOR_SIZESW, CURSOR_SIZENW, CURSOR_UPARROW, CURSOR_IBEAM, CURSOR_NO, CURSOR_HAND | |
| 44 * </dd> | |
| 45 * </dl> | |
| 46 * <p> | |
| 47 * Note: Only one of the above styles may be specified. | |
| 48 * </p> | |
| 49 */ | |
| 20 | 50 public final class Cursor : Resource { |
| 18 | 51 /** |
| 52 * the handle to the OS cursor resource | |
| 53 * (Warning: This field is platform dependent) | |
| 54 * <p> | |
| 55 * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT | |
| 56 * public API. It is marked public only so that it can be shared | |
| 57 * within the packages provided by SWT. It is not available on all | |
| 58 * platforms and should never be accessed from application code. | |
| 59 * </p> | |
| 60 */ | |
| 20 | 61 public GdkCursor* handle; |
| 18 | 62 |
| 20 | 63 static const byte[] APPSTARTING_SRC = [ cast(byte) |
| 18 | 64 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, |
| 65 0x0c, 0x00, 0x00, 0x00, 0x1c, 0x00, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x00, | |
| 20 | 66 0x7c, 0x00, 0x00, 0x00, cast(byte)0xfc, 0x00, 0x00, 0x00, cast(byte)0xfc, 0x01, 0x00, 0x00, |
| 67 cast(byte)0xfc, 0x3b, 0x00, 0x00, 0x7c, 0x38, 0x00, 0x00, 0x6c, 0x54, 0x00, 0x00, | |
| 68 cast(byte)0xc4, cast(byte)0xdc, 0x00, 0x00, cast(byte)0xc0, 0x44, 0x00, 0x00, cast(byte)0x80, 0x39, 0x00, 0x00, | |
| 69 cast(byte)0x80, 0x39, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 18 | 70 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 71 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 72 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 73 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 20 | 74 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]; |
| 18 | 75 |
| 20 | 76 static const byte[] APPSTARTING_MASK = [ cast(byte) |
| 18 | 77 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x00, 0x00, |
| 78 0x1e, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00, | |
| 20 | 79 cast(byte)0xfe, 0x00, 0x00, 0x00, cast(byte)0xfe, 0x01, 0x00, 0x00, cast(byte)0xfe, 0x3b, 0x00, 0x00, |
| 80 cast(byte)0xfe, 0x7f, 0x00, 0x00, cast(byte)0xfe, 0x7f, 0x00, 0x00, cast(byte)0xfe, cast(byte)0xfe, 0x00, 0x00, | |
| 81 cast(byte)0xee, cast(byte)0xff, 0x01, 0x00, cast(byte)0xe4, cast(byte)0xff, 0x00, 0x00, cast(byte)0xc0, 0x7f, 0x00, 0x00, | |
| 82 cast(byte)0xc0, 0x7f, 0x00, 0x00, cast(byte)0x80, 0x39, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 18 | 83 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 84 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 85 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 86 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 20 | 87 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]; |
| 18 | 88 |
| 20 | 89 this () { |
| 18 | 90 } |
| 91 | |
| 92 /** | |
| 93 * Constructs a new cursor given a device and a style | |
| 94 * constant describing the desired cursor appearance. | |
| 95 * <p> | |
| 96 * You must dispose the cursor when it is no longer required. | |
| 97 * </p> | |
| 98 * | |
| 99 * @param device the device on which to allocate the cursor | |
| 100 * @param style the style of cursor to allocate | |
| 101 * | |
| 102 * @exception IllegalArgumentException <ul> | |
| 103 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 104 * <li>ERROR_INVALID_ARGUMENT - when an unknown style is specified</li> | |
| 105 * </ul> | |
| 106 * @exception SWTError <ul> | |
| 107 * <li>ERROR_NO_HANDLES - if a handle could not be obtained for cursor creation</li> | |
| 108 * </ul> | |
| 109 * | |
| 110 * @see SWT#CURSOR_ARROW | |
| 111 * @see SWT#CURSOR_WAIT | |
| 112 * @see SWT#CURSOR_CROSS | |
| 113 * @see SWT#CURSOR_APPSTARTING | |
| 114 * @see SWT#CURSOR_HELP | |
| 115 * @see SWT#CURSOR_SIZEALL | |
| 116 * @see SWT#CURSOR_SIZENESW | |
| 117 * @see SWT#CURSOR_SIZENS | |
| 118 * @see SWT#CURSOR_SIZENWSE | |
| 119 * @see SWT#CURSOR_SIZEWE | |
| 120 * @see SWT#CURSOR_SIZEN | |
| 121 * @see SWT#CURSOR_SIZES | |
| 122 * @see SWT#CURSOR_SIZEE | |
| 123 * @see SWT#CURSOR_SIZEW | |
| 124 * @see SWT#CURSOR_SIZENE | |
| 125 * @see SWT#CURSOR_SIZESE | |
| 126 * @see SWT#CURSOR_SIZESW | |
| 127 * @see SWT#CURSOR_SIZENW | |
| 128 * @see SWT#CURSOR_UPARROW | |
| 129 * @see SWT#CURSOR_IBEAM | |
| 130 * @see SWT#CURSOR_NO | |
| 131 * @see SWT#CURSOR_HAND | |
| 132 */ | |
| 20 | 133 public this(Device device, int style) { |
| 18 | 134 if (device == null) device = Device.getDevice(); |
| 135 if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); | |
| 136 this.device = device; | |
| 137 int shape = 0; | |
| 138 switch (style) { | |
| 139 case SWT.CURSOR_APPSTARTING: break; | |
| 140 case SWT.CURSOR_ARROW: shape = OS.GDK_LEFT_PTR; break; | |
| 141 case SWT.CURSOR_WAIT: shape = OS.GDK_WATCH; break; | |
| 142 case SWT.CURSOR_CROSS: shape = OS.GDK_CROSS; break; | |
| 143 case SWT.CURSOR_HAND: shape = OS.GDK_HAND2; break; | |
| 144 case SWT.CURSOR_HELP: shape = OS.GDK_QUESTION_ARROW; break; | |
| 145 case SWT.CURSOR_SIZEALL: shape = OS.GDK_FLEUR; break; | |
| 146 case SWT.CURSOR_SIZENESW: shape = OS.GDK_SIZING; break; | |
| 147 case SWT.CURSOR_SIZENS: shape = OS.GDK_DOUBLE_ARROW; break; | |
| 148 case SWT.CURSOR_SIZENWSE: shape = OS.GDK_SIZING; break; | |
| 149 case SWT.CURSOR_SIZEWE: shape = OS.GDK_SB_H_DOUBLE_ARROW; break; | |
| 150 case SWT.CURSOR_SIZEN: shape = OS.GDK_TOP_SIDE; break; | |
| 151 case SWT.CURSOR_SIZES: shape = OS.GDK_BOTTOM_SIDE; break; | |
| 152 case SWT.CURSOR_SIZEE: shape = OS.GDK_RIGHT_SIDE; break; | |
| 153 case SWT.CURSOR_SIZEW: shape = OS.GDK_LEFT_SIDE; break; | |
| 154 case SWT.CURSOR_SIZENE: shape = OS.GDK_TOP_RIGHT_CORNER; break; | |
| 155 case SWT.CURSOR_SIZESE: shape = OS.GDK_BOTTOM_RIGHT_CORNER; break; | |
| 156 case SWT.CURSOR_SIZESW: shape = OS.GDK_BOTTOM_LEFT_CORNER; break; | |
| 157 case SWT.CURSOR_SIZENW: shape = OS.GDK_TOP_LEFT_CORNER; break; | |
| 158 case SWT.CURSOR_UPARROW: shape = OS.GDK_SB_UP_ARROW; break; | |
| 159 case SWT.CURSOR_IBEAM: shape = OS.GDK_XTERM; break; | |
| 160 case SWT.CURSOR_NO: shape = OS.GDK_X_CURSOR; break; | |
| 161 default: | |
| 162 SWT.error(SWT.ERROR_INVALID_ARGUMENT); | |
| 163 } | |
| 164 if (shape == 0 && style == SWT.CURSOR_APPSTARTING) { | |
| 165 handle = createCursor(APPSTARTING_SRC, APPSTARTING_MASK, 32, 32, 2, 2, true); | |
| 166 } else { | |
|
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changeset
|
167 handle = OS.gdk_cursor_new(shape); |
| 18 | 168 } |
| 20 | 169 if (handle is null) SWT.error(SWT.ERROR_NO_HANDLES); |
| 18 | 170 if (device.tracking) device.new_Object(this); |
| 171 } | |
| 172 | |
| 173 /** | |
| 174 * Constructs a new cursor given a device, image and mask | |
| 175 * data describing the desired cursor appearance, and the x | |
| 176 * and y coordinates of the <em>hotspot</em> (that is, the point | |
| 177 * within the area covered by the cursor which is considered | |
| 178 * to be where the on-screen pointer is "pointing"). | |
| 179 * <p> | |
| 180 * The mask data is allowed to be null, but in this case the source | |
| 181 * must be an ImageData representing an icon that specifies both | |
| 182 * color data and mask data. | |
| 183 * <p> | |
| 184 * You must dispose the cursor when it is no longer required. | |
| 185 * </p> | |
| 186 * | |
| 187 * @param device the device on which to allocate the cursor | |
| 188 * @param source the color data for the cursor | |
| 189 * @param mask the mask data for the cursor (or null) | |
| 190 * @param hotspotX the x coordinate of the cursor's hotspot | |
| 191 * @param hotspotY the y coordinate of the cursor's hotspot | |
| 192 * | |
| 193 * @exception IllegalArgumentException <ul> | |
| 194 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 195 * <li>ERROR_NULL_ARGUMENT - if the source is null</li> | |
| 196 * <li>ERROR_NULL_ARGUMENT - if the mask is null and the source does not have a mask</li> | |
| 197 * <li>ERROR_INVALID_ARGUMENT - if the source and the mask are not the same | |
| 198 * size, or if the hotspot is outside the bounds of the image</li> | |
| 199 * </ul> | |
| 200 * @exception SWTError <ul> | |
| 201 * <li>ERROR_NO_HANDLES - if a handle could not be obtained for cursor creation</li> | |
| 202 * </ul> | |
| 203 */ | |
| 20 | 204 public this(Device device, ImageData source, ImageData mask, int hotspotX, int hotspotY) { |
| 18 | 205 if (device == null) device = Device.getDevice(); |
| 206 if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); | |
| 207 this.device = device; | |
| 208 if (source == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); | |
| 209 if (mask == null) { | |
| 210 if (!(source.getTransparencyType() == SWT.TRANSPARENCY_MASK)) SWT.error(SWT.ERROR_NULL_ARGUMENT); | |
| 211 mask = source.getTransparencyMask(); | |
| 212 } | |
| 213 /* Check the bounds. Mask must be the same size as source */ | |
| 214 if (mask.width != source.width || mask.height != source.height) { | |
| 215 SWT.error(SWT.ERROR_INVALID_ARGUMENT); | |
| 216 } | |
| 217 /* Check the hotspots */ | |
| 218 if (hotspotX >= source.width || hotspotX < 0 || | |
| 219 hotspotY >= source.height || hotspotY < 0) { | |
| 220 SWT.error(SWT.ERROR_INVALID_ARGUMENT); | |
| 221 } | |
| 222 /* Convert depth to 1 */ | |
| 223 source = ImageData.convertMask(source); | |
| 224 mask = ImageData.convertMask(mask); | |
| 225 | |
| 226 /* Swap the bits in each byte and convert to appropriate scanline pad */ | |
| 227 byte[] sourceData = new byte[source.data.length]; | |
| 228 byte[] maskData = new byte[mask.data.length]; | |
| 229 byte[] data = source.data; | |
| 230 for (int i = 0; i < data.length; i++) { | |
| 231 byte s = data[i]; | |
| 20 | 232 sourceData[i] = cast(byte)(((s & 0x80) >> 7) | |
| 18 | 233 ((s & 0x40) >> 5) | |
| 234 ((s & 0x20) >> 3) | | |
| 235 ((s & 0x10) >> 1) | | |
| 236 ((s & 0x08) << 1) | | |
| 237 ((s & 0x04) << 3) | | |
| 238 ((s & 0x02) << 5) | | |
| 239 ((s & 0x01) << 7)); | |
| 20 | 240 sourceData[i] = cast(byte) ~sourceData[i]; |
| 18 | 241 } |
| 242 sourceData = ImageData.convertPad(sourceData, source.width, source.height, source.depth, source.scanlinePad, 1); | |
| 243 data = mask.data; | |
| 244 for (int i = 0; i < data.length; i++) { | |
| 245 byte s = data[i]; | |
| 20 | 246 maskData[i] = cast(byte)(((s & 0x80) >> 7) | |
| 18 | 247 ((s & 0x40) >> 5) | |
| 248 ((s & 0x20) >> 3) | | |
| 249 ((s & 0x10) >> 1) | | |
| 250 ((s & 0x08) << 1) | | |
| 251 ((s & 0x04) << 3) | | |
| 252 ((s & 0x02) << 5) | | |
| 253 ((s & 0x01) << 7)); | |
| 20 | 254 maskData[i] = cast(byte) ~maskData[i]; |
| 18 | 255 } |
| 256 maskData = ImageData.convertPad(maskData, mask.width, mask.height, mask.depth, mask.scanlinePad, 1); | |
| 257 handle = createCursor(maskData, sourceData, source.width, source.height, hotspotX, hotspotY, true); | |
| 20 | 258 if (handle is null) SWT.error(SWT.ERROR_NO_HANDLES); |
| 18 | 259 if (device.tracking) device.new_Object(this); |
| 260 } | |
| 261 | |
| 262 /** | |
| 263 * Constructs a new cursor given a device, image data describing | |
| 264 * the desired cursor appearance, and the x and y coordinates of | |
| 265 * the <em>hotspot</em> (that is, the point within the area | |
| 266 * covered by the cursor which is considered to be where the | |
| 267 * on-screen pointer is "pointing"). | |
| 268 * <p> | |
| 269 * You must dispose the cursor when it is no longer required. | |
| 270 * </p> | |
| 271 * | |
| 272 * @param device the device on which to allocate the cursor | |
| 273 * @param source the image data for the cursor | |
| 274 * @param hotspotX the x coordinate of the cursor's hotspot | |
| 275 * @param hotspotY the y coordinate of the cursor's hotspot | |
| 276 * | |
| 277 * @exception IllegalArgumentException <ul> | |
| 278 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 279 * <li>ERROR_NULL_ARGUMENT - if the image is null</li> | |
| 280 * <li>ERROR_INVALID_ARGUMENT - if the hotspot is outside the bounds of the | |
| 281 * image</li> | |
| 282 * </ul> | |
| 283 * @exception SWTError <ul> | |
| 284 * <li>ERROR_NO_HANDLES - if a handle could not be obtained for cursor creation</li> | |
| 285 * </ul> | |
| 286 * | |
| 287 * @since 3.0 | |
| 288 */ | |
| 20 | 289 public this(Device device, ImageData source, int hotspotX, int hotspotY) { |
| 18 | 290 if (device == null) device = Device.getDevice(); |
| 291 if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); | |
| 292 this.device = device; | |
| 293 if (source == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); | |
| 294 if (hotspotX >= source.width || hotspotX < 0 || | |
| 295 hotspotY >= source.height || hotspotY < 0) { | |
| 296 SWT.error(SWT.ERROR_INVALID_ARGUMENT); | |
| 297 } | |
| 20 | 298 GdkDisplay* display; |
| 299 if (OS.GTK_VERSION >= OS.buildVERSION(2, 4, 0) && OS.gdk_display_supports_cursor_color(display = OS.gdk_display_get_default ())) { | |
| 18 | 300 int width = source.width; |
| 301 int height = source.height; | |
| 302 PaletteData palette = source.palette; | |
|
33
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diff
changeset
|
303 auto pixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB, true, 8, width, height); |
| 20 | 304 if (pixbuf is null) SWT.error(SWT.ERROR_NO_HANDLES); |
| 18 | 305 int stride = OS.gdk_pixbuf_get_rowstride(pixbuf); |
| 20 | 306 auto data = OS.gdk_pixbuf_get_pixels(pixbuf); |
| 18 | 307 byte[] buffer = source.data; |
| 308 if (!palette.isDirect || source.depth != 24 || stride != source.bytesPerLine || palette.redMask != 0xFF000000 || palette.greenMask != 0xFF0000 || palette.blueMask != 0xFF00) { | |
| 309 buffer = new byte[source.width * source.height * 4]; | |
| 310 if (palette.isDirect) { | |
| 311 ImageData.blit(ImageData.BLIT_SRC, | |
| 312 source.data, source.depth, source.bytesPerLine, source.getByteOrder(), 0, 0, source.width, source.height, palette.redMask, palette.greenMask, palette.blueMask, | |
| 313 ImageData.ALPHA_OPAQUE, null, 0, 0, 0, | |
| 314 buffer, 32, source.width * 4, ImageData.MSB_FIRST, 0, 0, source.width, source.height, 0xFF000000, 0xFF0000, 0xFF00, | |
| 315 false, false); | |
| 316 } else { | |
| 317 RGB[] rgbs = palette.getRGBs(); | |
| 318 int length = rgbs.length; | |
| 319 byte[] srcReds = new byte[length]; | |
| 320 byte[] srcGreens = new byte[length]; | |
| 321 byte[] srcBlues = new byte[length]; | |
| 322 for (int i = 0; i < rgbs.length; i++) { | |
| 323 RGB rgb = rgbs[i]; | |
| 324 if (rgb == null) continue; | |
| 20 | 325 srcReds[i] = cast(byte)rgb.red; |
| 326 srcGreens[i] = cast(byte)rgb.green; | |
| 327 srcBlues[i] = cast(byte)rgb.blue; | |
| 18 | 328 } |
| 329 ImageData.blit(ImageData.BLIT_SRC, | |
| 330 source.data, source.depth, source.bytesPerLine, source.getByteOrder(), 0, 0, source.width, source.height, srcReds, srcGreens, srcBlues, | |
| 331 ImageData.ALPHA_OPAQUE, null, 0, 0, 0, | |
| 332 buffer, 32, source.width * 4, ImageData.MSB_FIRST, 0, 0, source.width, source.height, 0xFF000000, 0xFF0000, 0xFF00, | |
| 333 false, false); | |
| 334 } | |
| 335 if (source.maskData != null || source.transparentPixel != -1) { | |
| 336 ImageData mask = source.getTransparencyMask(); | |
| 337 byte[] maskData = mask.data; | |
| 338 int maskBpl = mask.bytesPerLine; | |
| 339 int offset = 3, maskOffset = 0; | |
| 340 for (int y = 0; y<source.height; y++) { | |
| 341 for (int x = 0; x<source.width; x++) { | |
| 20 | 342 buffer[offset] = ((maskData[maskOffset + (x >> 3)]) & (1 << (7 - (x & 0x7)))) != 0 ? cast(byte)0xff : 0; |
| 18 | 343 offset += 4; |
| 344 } | |
| 345 maskOffset += maskBpl; | |
| 346 } | |
| 347 } else if (source.alpha != -1) { | |
| 20 | 348 byte alpha = cast(byte)source.alpha; |
| 18 | 349 for (int i=3; i<buffer.length; i+=4) { |
| 350 buffer[i] = alpha; | |
| 351 } | |
| 352 } else if (source.alphaData != null) { | |
| 353 byte[] alphaData = source.alphaData; | |
| 354 for (int i=3; i<buffer.length; i+=4) { | |
| 355 buffer[i] = alphaData[i/4]; | |
| 356 } | |
| 357 } | |
| 358 } | |
| 20 | 359 memmove(data, buffer.ptr, stride * height); |
| 18 | 360 handle = OS.gdk_cursor_new_from_pixbuf(display, pixbuf, hotspotX, hotspotY); |
| 361 OS.g_object_unref(pixbuf); | |
| 362 } else { | |
| 363 | |
| 364 ImageData mask = source.getTransparencyMask(); | |
| 365 | |
| 366 /* Ensure depth is equal to 1 */ | |
| 367 if (source.depth > 1) { | |
| 368 /* Create a destination image with no data */ | |
| 369 ImageData newSource = new ImageData( | |
| 370 source.width, source.height, 1, ImageData.bwPalette(), | |
| 371 1, null, 0, null, null, -1, -1, 0, 0, 0, 0, 0); | |
| 372 | |
| 20 | 373 byte[] newReds = [ cast(byte)0, cast(byte)255 ], newGreens = newReds, newBlues = newReds; |
| 18 | 374 |
| 375 /* Convert the source to a black and white image of depth 1 */ | |
| 376 PaletteData palette = source.palette; | |
| 377 if (palette.isDirect) { | |
| 378 ImageData.blit(ImageData.BLIT_SRC, | |
| 379 source.data, source.depth, source.bytesPerLine, source.getByteOrder(), 0, 0, source.width, source.height, palette.redMask, palette.greenMask, palette.blueMask, | |
| 380 ImageData.ALPHA_OPAQUE, null, 0, 0, 0, | |
| 381 newSource.data, newSource.depth, newSource.bytesPerLine, newSource.getByteOrder(), 0, 0, newSource.width, newSource.height, newReds, newGreens, newBlues, | |
| 382 false, false); | |
| 383 } else { | |
| 384 RGB[] rgbs = palette.getRGBs(); | |
| 385 int length = rgbs.length; | |
| 386 byte[] srcReds = new byte[length]; | |
| 387 byte[] srcGreens = new byte[length]; | |
| 388 byte[] srcBlues = new byte[length]; | |
| 389 for (int i = 0; i < rgbs.length; i++) { | |
| 390 RGB rgb = rgbs[i]; | |
| 391 if (rgb == null) continue; | |
| 20 | 392 srcReds[i] = cast(byte)rgb.red; |
| 393 srcGreens[i] = cast(byte)rgb.green; | |
| 394 srcBlues[i] = cast(byte)rgb.blue; | |
| 18 | 395 } |
| 396 ImageData.blit(ImageData.BLIT_SRC, | |
| 397 source.data, source.depth, source.bytesPerLine, source.getByteOrder(), 0, 0, source.width, source.height, srcReds, srcGreens, srcBlues, | |
| 398 ImageData.ALPHA_OPAQUE, null, 0, 0, 0, | |
| 399 newSource.data, newSource.depth, newSource.bytesPerLine, newSource.getByteOrder(), 0, 0, newSource.width, newSource.height, newReds, newGreens, newBlues, | |
| 400 false, false); | |
| 401 } | |
| 402 source = newSource; | |
| 403 } | |
| 404 | |
| 405 /* Swap the bits in each byte and convert to appropriate scanline pad */ | |
| 406 byte[] sourceData = new byte[source.data.length]; | |
| 407 byte[] maskData = new byte[mask.data.length]; | |
| 408 byte[] data = source.data; | |
| 409 for (int i = 0; i < data.length; i++) { | |
| 410 byte s = data[i]; | |
| 20 | 411 sourceData[i] = cast(byte)(((s & 0x80) >> 7) | |
| 18 | 412 ((s & 0x40) >> 5) | |
| 413 ((s & 0x20) >> 3) | | |
| 414 ((s & 0x10) >> 1) | | |
| 415 ((s & 0x08) << 1) | | |
| 416 ((s & 0x04) << 3) | | |
| 417 ((s & 0x02) << 5) | | |
| 418 ((s & 0x01) << 7)); | |
| 419 } | |
| 420 sourceData = ImageData.convertPad(sourceData, source.width, source.height, source.depth, source.scanlinePad, 1); | |
| 421 data = mask.data; | |
| 422 for (int i = 0; i < data.length; i++) { | |
| 423 byte s = data[i]; | |
| 20 | 424 maskData[i] = cast(byte)(((s & 0x80) >> 7) | |
| 18 | 425 ((s & 0x40) >> 5) | |
| 426 ((s & 0x20) >> 3) | | |
| 427 ((s & 0x10) >> 1) | | |
| 428 ((s & 0x08) << 1) | | |
| 429 ((s & 0x04) << 3) | | |
| 430 ((s & 0x02) << 5) | | |
| 431 ((s & 0x01) << 7)); | |
| 432 } | |
| 433 maskData = ImageData.convertPad(maskData, mask.width, mask.height, mask.depth, mask.scanlinePad, 1); | |
| 434 handle = createCursor(sourceData, maskData, source.width, source.height, hotspotX, hotspotY, false); | |
| 435 } | |
| 20 | 436 if (handle is null) SWT.error(SWT.ERROR_NO_HANDLES); |
| 18 | 437 if (device.tracking) device.new_Object(this); |
| 438 } | |
| 439 | |
| 20 | 440 GdkCursor* createCursor(byte[] sourceData, byte[] maskData, int width, int height, int hotspotX, int hotspotY, bool reverse) { |
| 441 auto sourcePixmap = OS.gdk_bitmap_create_from_data(null, cast(char*)sourceData.ptr, width, height); | |
| 442 auto maskPixmap = OS.gdk_bitmap_create_from_data(null, cast(char*)maskData.ptr, width, height); | |
| 443 GdkCursor* cursor = null; | |
| 444 if (sourcePixmap !is null && maskPixmap !is null) { | |
| 445 GdkColor* foreground = new GdkColor(); | |
| 446 if (!reverse) foreground.red = foreground.green = foreground.blue = 0xFFFF; | |
| 447 GdkColor* background = new GdkColor(); | |
| 448 if (reverse) background.red = background.green = background.blue = 0xFFFF; | |
| 449 cursor = OS.gdk_cursor_new_from_pixmap (cast(GdkPixmap*)sourcePixmap, cast(GdkPixmap*)maskPixmap, foreground, background, hotspotX, hotspotY); | |
| 18 | 450 } |
| 20 | 451 if (sourcePixmap !is null) OS.g_object_unref (sourcePixmap); |
| 452 if (maskPixmap !is null) OS.g_object_unref (maskPixmap); | |
| 18 | 453 return cursor; |
| 454 } | |
| 455 | |
| 456 /** | |
| 457 * Disposes of the operating system resources associated with | |
| 458 * the cursor. Applications must dispose of all cursors which | |
| 459 * they allocate. | |
| 460 */ | |
| 461 public void dispose() { | |
| 20 | 462 if (handle is null) return; |
| 18 | 463 if (device.isDisposed()) return; |
| 464 OS.gdk_cursor_destroy(handle); | |
| 20 | 465 handle = null; |
| 18 | 466 if (device.tracking) device.dispose_Object(this); |
| 467 device = null; | |
| 468 } | |
| 469 | |
| 470 /** | |
| 471 * Compares the argument to the receiver, and returns true | |
| 472 * if they represent the <em>same</em> object using a class | |
| 473 * specific comparison. | |
| 474 * | |
| 475 * @param object the object to compare with this object | |
| 476 * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise | |
| 477 * | |
| 478 * @see #hashCode | |
| 479 */ | |
| 20 | 480 public override int opEquals(Object object) { |
| 481 if (object is this) return true; | |
| 482 if ( auto cursor = cast(Cursor)object ){ | |
| 483 return device is cursor.device && handle is cursor.handle; | |
| 484 } | |
| 485 return false; | |
| 18 | 486 } |
| 487 | |
| 488 /** | |
| 489 * Invokes platform specific functionality to allocate a new cursor. | |
| 490 * <p> | |
| 491 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public | |
| 492 * API for <code>Cursor</code>. It is marked public only so that it | |
| 493 * can be shared within the packages provided by SWT. It is not | |
| 494 * available on all platforms, and should never be called from | |
| 495 * application code. | |
| 496 * </p> | |
| 497 * | |
| 498 * @param device the device on which to allocate the color | |
| 499 * @param handle the handle for the cursor | |
| 500 * | |
| 501 * @private | |
| 502 */ | |
| 20 | 503 public static Cursor gtk_new(Device device, GdkCursor* handle) { |
| 18 | 504 if (device == null) device = Device.getDevice(); |
| 505 Cursor cursor = new Cursor(); | |
| 506 cursor.handle = handle; | |
| 507 cursor.device = device; | |
| 508 return cursor; | |
| 509 } | |
| 510 | |
| 511 /** | |
| 512 * Returns an integer hash code for the receiver. Any two | |
| 513 * objects that return <code>true</code> when passed to | |
| 514 * <code>equals</code> must return the same value for this | |
| 515 * method. | |
| 516 * | |
| 517 * @return the receiver's hash | |
| 518 * | |
| 519 * @see #equals | |
| 520 */ | |
| 20 | 521 public override hash_t toHash() { |
| 522 return cast(hash_t)handle; | |
| 18 | 523 } |
| 524 | |
| 525 /** | |
| 526 * Returns <code>true</code> if the cursor has been disposed, | |
| 527 * and <code>false</code> otherwise. | |
| 528 * <p> | |
| 529 * This method gets the dispose state for the cursor. | |
| 530 * When a cursor has been disposed, it is an error to | |
| 531 * invoke any other method using the cursor. | |
| 532 * | |
| 533 * @return <code>true</code> when the cursor is disposed and <code>false</code> otherwise | |
| 534 */ | |
| 20 | 535 public bool isDisposed() { |
| 536 return handle is null; | |
| 18 | 537 } |
| 538 | |
| 539 /** | |
| 540 * Returns a string containing a concise, human-readable | |
| 541 * description of the receiver. | |
| 542 * | |
| 543 * @return a string representation of the receiver | |
| 544 */ | |
| 20 | 545 public override char[] toString () { |
| 18 | 546 if (isDisposed()) return "Cursor {*DISPOSED*}"; |
| 20 | 547 return Format( "Cursor {{{}}", handle ); |
| 18 | 548 } |
| 549 | |
| 550 } |