/*******************************************************************************
* Copyright (c) 2000, 2008 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.graphics;
import org.eclipse.swt.internal.carbon.*;
import org.eclipse.swt.internal.cocoa.*;
import org.eclipse.swt.*;
/**
* Instances of this class manage operating system resources that
* specify the appearance of the on-screen pointer. To create a
* cursor you specify the device and either a simple cursor style
* describing one of the standard operating system provided cursors
* or the image and mask data for the desired appearance.
* <p>
* Application code must explicitly invoke the <code>Cursor.dispose()</code>
* method to release the operating system resources managed by each instance
* when those instances are no longer required.
* </p>
* <dl>
* <dt><b>Styles:</b></dt>
* <dd>
* CURSOR_ARROW, CURSOR_WAIT, CURSOR_CROSS, CURSOR_APPSTARTING, CURSOR_HELP,
* CURSOR_SIZEALL, CURSOR_SIZENESW, CURSOR_SIZENS, CURSOR_SIZENWSE, CURSOR_SIZEWE,
* CURSOR_SIZEN, CURSOR_SIZES, CURSOR_SIZEE, CURSOR_SIZEW, CURSOR_SIZENE, CURSOR_SIZESE,
* CURSOR_SIZESW, CURSOR_SIZENW, CURSOR_UPARROW, CURSOR_IBEAM, CURSOR_NO, CURSOR_HAND
* </dd>
* </dl>
* <p>
* Note: Only one of the above styles may be specified.
* </p>
*
* @see <a href="http://www.eclipse.org/swt/snippets/#cursor">Cursor snippets</a>
* @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
*/
public final class Cursor extends Resource {
/**
* the handle to the OS cursor resource
* (Warning: This field is platform dependent)
* <p>
* <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT
* public API. It is marked public only so that it can be shared
* within the packages provided by SWT. It is not available on all
* platforms and should never be accessed from application code.
* </p>
*
* @noreference This field is not intended to be referenced by clients.
*/
public int handle;
static boolean initialized;
/**
* Prevents uninitialized instances from being created outside the package.
*/
Cursor(Device device) {
super(device);
}
/**
* Constructs a new cursor given a device and a style
* constant describing the desired cursor appearance.
* <p>
* You must dispose the cursor when it is no longer required.
* </p>
* NOTE:
* It is recommended to use {@link org.eclipse.swt.widgets.Display#getSystemCursor(int)}
* instead of using this constructor. This way you can avoid the
* overhead of disposing the Cursor resource.
*
* @param device the device on which to allocate the cursor
* @param style the style of cursor to allocate
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li>
* <li>ERROR_INVALID_ARGUMENT - when an unknown style is specified</li>
* </ul>
* @exception SWTError <ul>
* <li>ERROR_NO_HANDLES - if a handle could not be obtained for cursor creation</li>
* </ul>
*
* @see SWT#CURSOR_ARROW
* @see SWT#CURSOR_WAIT
* @see SWT#CURSOR_CROSS
* @see SWT#CURSOR_APPSTARTING
* @see SWT#CURSOR_HELP
* @see SWT#CURSOR_SIZEALL
* @see SWT#CURSOR_SIZENESW
* @see SWT#CURSOR_SIZENS
* @see SWT#CURSOR_SIZENWSE
* @see SWT#CURSOR_SIZEWE
* @see SWT#CURSOR_SIZEN
* @see SWT#CURSOR_SIZES
* @see SWT#CURSOR_SIZEE
* @see SWT#CURSOR_SIZEW
* @see SWT#CURSOR_SIZENE
* @see SWT#CURSOR_SIZESE
* @see SWT#CURSOR_SIZESW
* @see SWT#CURSOR_SIZENW
* @see SWT#CURSOR_UPARROW
* @see SWT#CURSOR_IBEAM
* @see SWT#CURSOR_NO
* @see SWT#CURSOR_HAND
*/
public Cursor(Device device, int style) {
super(device);
switch (style) {
case SWT.CURSOR_HAND: handle = OS.kThemePointingHandCursor; break;
case SWT.CURSOR_ARROW: handle = OS.kThemeArrowCursor; break;
case SWT.CURSOR_WAIT: handle = OS.kThemeSpinningCursor; break;
case SWT.CURSOR_CROSS: handle = OS.kThemeCrossCursor; break;
case SWT.CURSOR_APPSTARTING: handle = OS.kThemeArrowCursor; break;
case SWT.CURSOR_HELP: handle = OS.kThemeCrossCursor; break;
case SWT.CURSOR_SIZEALL: handle = OS.kThemeCrossCursor; break;
case SWT.CURSOR_SIZENESW: handle = OS.kThemeCrossCursor; break;
case SWT.CURSOR_SIZENS: handle = OS.kThemeResizeUpDownCursor; break;
case SWT.CURSOR_SIZENWSE: handle = OS.kThemeCrossCursor; break;
case SWT.CURSOR_SIZEWE: handle = OS.kThemeResizeLeftRightCursor; break;
case SWT.CURSOR_SIZEN: handle = OS.kThemeResizeUpCursor; break;
case SWT.CURSOR_SIZES: handle = OS.kThemeResizeDownCursor; break;
case SWT.CURSOR_SIZEE: handle = OS.kThemeResizeRightCursor; break;
case SWT.CURSOR_SIZEW: handle = OS.kThemeResizeLeftCursor; break;
case SWT.CURSOR_SIZENE: handle = OS.kThemeCrossCursor; break;
case SWT.CURSOR_SIZESE: handle = OS.kThemeCrossCursor; break;
case SWT.CURSOR_SIZESW: handle = OS.kThemeCrossCursor; break;
case SWT.CURSOR_SIZENW: handle = OS.kThemeCrossCursor; break;
case SWT.CURSOR_UPARROW: handle = OS.kThemeCrossCursor; break;
case SWT.CURSOR_IBEAM: handle = OS.kThemeIBeamCursor; break;
case SWT.CURSOR_NO: handle = OS.kThemeNotAllowedCursor; break;
default:
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
}
init();
}
/**
* Constructs a new cursor given a device, image and mask
* data describing the desired cursor appearance, and the x
* and y coordinates of the <em>hotspot</em> (that is, the point
* within the area covered by the cursor which is considered
* to be where the on-screen pointer is "pointing").
* <p>
* The mask data is allowed to be null, but in this case the source
* must be an ImageData representing an icon that specifies both
* color data and mask data.
* <p>
* You must dispose the cursor when it is no longer required.
* </p>
*
* @param device the device on which to allocate the cursor
* @param source the color data for the cursor
* @param mask the mask data for the cursor (or null)
* @param hotspotX the x coordinate of the cursor's hotspot
* @param hotspotY the y coordinate of the cursor's hotspot
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li>
* <li>ERROR_NULL_ARGUMENT - if the source is null</li>
* <li>ERROR_NULL_ARGUMENT - if the mask is null and the source does not have a mask</li>
* <li>ERROR_INVALID_ARGUMENT - if the source and the mask are not the same
* size, or if the hotspot is outside the bounds of the image</li>
* </ul>
* @exception SWTError <ul>
* <li>ERROR_NO_HANDLES - if a handle could not be obtained for cursor creation</li>
* </ul>
*/
public Cursor(Device device, ImageData source, ImageData mask, int hotspotX, int hotspotY) {
super(device);
if (source == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
if (mask == null) {
if (source.getTransparencyType() != SWT.TRANSPARENCY_MASK) {
SWT.error(SWT.ERROR_NULL_ARGUMENT);
}
mask = source.getTransparencyMask();
}
/* Check the bounds. Mask must be the same size as source */
if (mask.width != source.width || mask.height != source.height) {
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
}
/* Check the hotspots */
if (hotspotX >= source.width || hotspotX < 0 ||
hotspotY >= source.height || hotspotY < 0) {
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
}
if (OS.VERSION >= 0x1040) {
byte[] data = new byte[source.width * source.height * 4];
for (int y = 0; y < source.height; y++) {
int offset = y * source.width * 4;
for (int x = 0; x < source.width; x++) {
int pixel = source.getPixel(x, y);
int maskPixel = mask.getPixel(x, y);
if (pixel == 0 && maskPixel == 0) {
// BLACK
data[offset] = (byte)0xFF;
} else if (pixel == 0 && maskPixel == 1) {
// WHITE - cursor color
data[offset] = data[offset + 1] = data[offset + 2] = data[offset + 3] = (byte)0xFF;
} else if (pixel == 1 && maskPixel == 0) {
// SCREEN
} else {
/*
* Feature in the Macintosh. It is not possible to have
* the reverse screen case using NSCursor.
* Reverse screen will be the same as screen.
*/
// REVERSE SCREEN -> SCREEN
}
offset += 4;
}
}
createNSCursor(hotspotX, hotspotY, data, source.width, source.height);
return;
}
/* Convert depth to 1 */
mask = ImageData.convertMask(mask);
source = ImageData.convertMask(source);
/* Find the first non transparent pixel if cursor bigger than 16x16. */
int width = source.width;
int height = source.height;
int minX = 0, minY = 0;
if (width > 16 || height > 16) {
minX = width;
minY = height;
int maxX = 0, maxY = 0;
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
if (!(source.getPixel(x, y) == 1 && mask.getPixel(x, y) == 0)) {
minX = Math.min(minX, x);
minY = Math.min(minY, y);
maxX = Math.max(maxX, x);
maxY = Math.max(maxY, y);
}
}
}
width = maxX - minX + 1;
height = maxY - minY + 1;
/* Stretch cursor if still bigger than 16x16. */
if (width > 16 || height > 16) {
int newWidth = Math.min(width, 16);
int newHeight = Math.min(height, 16);
ImageData newSource =
new ImageData(newWidth, newHeight, source.depth, source.palette,
1, null, 0, null, null, -1, -1, source.type,
source.x, source.y, source.disposalMethod, source.delayTime);
ImageData newMask = new ImageData(newWidth, newHeight, mask.depth,
mask.palette, 1, null, 0, null, null, -1, -1, mask.type,
mask.x, mask.y, mask.disposalMethod, mask.delayTime);
ImageData.blit(ImageData.BLIT_SRC,
source.data, source.depth, source.bytesPerLine, source.getByteOrder(), minX, minY, width, height, null, null, null,
ImageData.ALPHA_OPAQUE, null, 0, minX, minY,
newSource.data, newSource.depth, newSource.bytesPerLine, newSource.getByteOrder(), 0, 0, newWidth, newHeight, null, null, null,
false, false);
ImageData.blit(ImageData.BLIT_SRC,
mask.data, mask.depth, mask.bytesPerLine, mask.getByteOrder(), minX, minY, width, height, null, null, null,
ImageData.ALPHA_OPAQUE, null, 0, minX, minY,
newMask.data, newMask.depth, newMask.bytesPerLine, newMask.getByteOrder(), 0, 0, newWidth, newHeight, null, null, null,
false, false);
width = newWidth;
height = newHeight;
minX = minY = 0;
source = newSource;
mask = newMask;
}
}
/* Create the cursor */
org.eclipse.swt.internal.carbon.Cursor cursor = new org.eclipse.swt.internal.carbon.Cursor();
byte[] srcData = cursor.data;
byte[] maskData = cursor.mask;
for (int y = 0; y < height; y++) {
short d = 0, m = 0;
for (int x = 0; x < width; x++) {
int bit = 1 << (width - 1 - x);
if (source.getPixel(minX + x, minY + y) == 0) {
m |= bit;
if (mask.getPixel(minX + x, minY + y) == 0) d |= bit;
} else if (mask.getPixel(minX + x, minY + y) != 0) {
d |= bit;
}
}
srcData[y * 2] = (byte)(d >> 8);
srcData[y * 2 + 1] = (byte)(d & 0xFF);
maskData[y * 2] = (byte)(m >> 8);
maskData[y * 2 + 1] = (byte)(m & 0xFF);
}
cursor.hotSpot_h = (short)Math.max(0, Math.min(15, hotspotX - minX));
cursor.hotSpot_v = (short)Math.max(0, Math.min(15, hotspotY - minY));
handle = OS.NewPtr(org.eclipse.swt.internal.carbon.Cursor.sizeof);
if (handle == 0) SWT.error(SWT.ERROR_NO_HANDLES);
OS.memmove(handle, cursor, org.eclipse.swt.internal.carbon.Cursor.sizeof);
init();
}
void createNSCursor(int hotspotX, int hotspotY, byte[] buffer, int width, int height) {
if (!initialized) {
initialized = true;
int window = Cocoa.objc_msgSend(Cocoa.objc_msgSend(Cocoa.C_NSWindow, Cocoa.S_alloc), Cocoa.S_init);
Cocoa.objc_msgSend(window, Cocoa.S_release);
}
int nsImage = Cocoa.objc_msgSend(Cocoa.C_NSImage, Cocoa.S_alloc);
if (nsImage == 0) SWT.error(SWT.ERROR_NO_HANDLES);
int nsImageRep = Cocoa.objc_msgSend(Cocoa.C_NSBitmapImageRep, Cocoa.S_alloc);
if (nsImageRep == 0) SWT.error(SWT.ERROR_NO_HANDLES);
this.handle = Cocoa.objc_msgSend(Cocoa.C_NSCursor, Cocoa.S_alloc);
if (handle == 0) SWT.error(SWT.ERROR_NO_HANDLES);
NSSize size = new NSSize();
size.width = width;
size.height = height;
nsImage = Cocoa.objc_msgSend(nsImage, Cocoa.S_initWithSize, size);
nsImageRep = Cocoa.objc_msgSend(nsImageRep, Cocoa.S_initWithBitmapDataPlanes, null, width, height,
8, 4, 1, 0, Cocoa.NSDeviceRGBColorSpace(),
Cocoa.NSAlphaFirstBitmapFormat | Cocoa.NSAlphaNonpremultipliedBitmapFormat, width * 4, 32);
int bitmapData = Cocoa.objc_msgSend(nsImageRep, Cocoa.S_bitmapData);
OS.memmove(bitmapData, buffer, buffer.length);
Cocoa.objc_msgSend(nsImage, Cocoa.S_addRepresentation, nsImageRep);
NSPoint point = new NSPoint();
point.x = hotspotX;
point.y = hotspotY;
handle = Cocoa.objc_msgSend(handle, Cocoa.S_initWithImage_hotSpot, nsImage, point);
Cocoa.objc_msgSend(nsImage, Cocoa.S_release);
Cocoa.objc_msgSend(nsImageRep, Cocoa.S_release);
}
/**
* Constructs a new cursor given a device, image data describing
* the desired cursor appearance, and the x and y coordinates of
* the <em>hotspot</em> (that is, the point within the area
* covered by the cursor which is considered to be where the
* on-screen pointer is "pointing").
* <p>
* You must dispose the cursor when it is no longer required.
* </p>
*
* @param device the device on which to allocate the cursor
* @param source the image data for the cursor
* @param hotspotX the x coordinate of the cursor's hotspot
* @param hotspotY the y coordinate of the cursor's hotspot
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li>
* <li>ERROR_NULL_ARGUMENT - if the image is null</li>
* <li>ERROR_INVALID_ARGUMENT - if the hotspot is outside the bounds of the
* image</li>
* </ul>
* @exception SWTError <ul>
* <li>ERROR_NO_HANDLES - if a handle could not be obtained for cursor creation</li>
* </ul>
*
* @since 3.0
*/
public Cursor(Device device, ImageData source, int hotspotX, int hotspotY) {
super(device);
if (source == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
if (hotspotX >= source.width || hotspotX < 0 ||
hotspotY >= source.height || hotspotY < 0) {
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
}
if (OS.VERSION >= 0x1040) {
byte[] data = new byte[source.width * source.height * 4];
PaletteData palette = source.palette;
if (palette.isDirect) {
ImageData.blit(ImageData.BLIT_SRC,
source.data, source.depth, source.bytesPerLine, source.getByteOrder(), 0, 0, source.width, source.height, palette.redMask, palette.greenMask, palette.blueMask,
ImageData.ALPHA_OPAQUE, null, 0, 0, 0,
data, 32, source.width * 4, ImageData.MSB_FIRST, 0, 0, source.width, source.height, 0xFF0000, 0xFF00, 0xFF,
false, false);
} else {
RGB[] rgbs = palette.getRGBs();
int length = rgbs.length;
byte[] srcReds = new byte[length];
byte[] srcGreens = new byte[length];
byte[] srcBlues = new byte[length];
for (int i = 0; i < rgbs.length; i++) {
RGB rgb = rgbs[i];
if (rgb == null) continue;
srcReds[i] = (byte)rgb.red;
srcGreens[i] = (byte)rgb.green;
srcBlues[i] = (byte)rgb.blue;
}
ImageData.blit(ImageData.BLIT_SRC,
source.data, source.depth, source.bytesPerLine, source.getByteOrder(), 0, 0, source.width, source.height, srcReds, srcGreens, srcBlues,
ImageData.ALPHA_OPAQUE, null, 0, 0, 0,
data, 32, source.width * 4, ImageData.MSB_FIRST, 0, 0, source.width, source.height, 0xFF0000, 0xFF00, 0xFF,
false, false);
}
if (source.maskData != null || source.transparentPixel != -1) {
ImageData mask = source.getTransparencyMask();
byte[] maskData = mask.data;
int maskBpl = mask.bytesPerLine;
int offset = 0, maskOffset = 0;
for (int y = 0; y<source.height; y++) {
for (int x = 0; x<source.width; x++) {
data[offset] = ((maskData[maskOffset + (x >> 3)]) & (1 << (7 - (x & 0x7)))) != 0 ? (byte)0xff : 0;
offset += 4;
}
maskOffset += maskBpl;
}
} else if (source.alpha != -1) {
byte alpha = (byte)source.alpha;
for (int i=0; i<data.length; i+=4) {
data[i] = alpha;
}
} else if (source.alphaData != null) {
byte[] alphaData = source.alphaData;
for (int i=0; i<data.length; i+=4) {
data[i] = alphaData[i/4];
}
}
createNSCursor(hotspotX, hotspotY, data, source.width, source.height);
} else {
ImageData mask = source.getTransparencyMask();
/* Ensure depth is equal to 1 */
if (source.depth > 1) {
/* Create a destination image with no data */
ImageData newSource = new ImageData(
source.width, source.height, 1, ImageData.bwPalette(),
1, null, 0, null, null, -1, -1, 0, 0, 0, 0, 0);
byte[] newReds = new byte[]{0, (byte)255}, newGreens = newReds, newBlues = newReds;
/* Convert the source to a black and white image of depth 1 */
PaletteData palette = source.palette;
if (palette.isDirect) {
ImageData.blit(ImageData.BLIT_SRC,
source.data, source.depth, source.bytesPerLine, source.getByteOrder(), 0, 0, source.width, source.height, palette.redMask, palette.greenMask, palette.blueMask,
ImageData.ALPHA_OPAQUE, null, 0, 0, 0,
newSource.data, newSource.depth, newSource.bytesPerLine, newSource.getByteOrder(), 0, 0, newSource.width, newSource.height, newReds, newGreens, newBlues,
false, false);
} else {
RGB[] rgbs = palette.getRGBs();
int length = rgbs.length;
byte[] srcReds = new byte[length];
byte[] srcGreens = new byte[length];
byte[] srcBlues = new byte[length];
for (int i = 0; i < rgbs.length; i++) {
RGB rgb = rgbs[i];
if (rgb == null) continue;
srcReds[i] = (byte)rgb.red;
srcGreens[i] = (byte)rgb.green;
srcBlues[i] = (byte)rgb.blue;
}
ImageData.blit(ImageData.BLIT_SRC,
source.data, source.depth, source.bytesPerLine, source.getByteOrder(), 0, 0, source.width, source.height, srcReds, srcGreens, srcBlues,
ImageData.ALPHA_OPAQUE, null, 0, 0, 0,
newSource.data, newSource.depth, newSource.bytesPerLine, newSource.getByteOrder(), 0, 0, newSource.width, newSource.height, newReds, newGreens, newBlues,
false, false);
}
source = newSource;
}
/* Find the first non transparent pixel if cursor bigger than 16x16. */
int width = source.width;
int height = source.height;
int minX = 0, minY = 0;
if (width > 16 || height > 16) {
minX = width;
minY = height;
int maxX = 0, maxY = 0;
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
if (!(source.getPixel(x, y) == 1 && mask.getPixel(x, y) == 0)) {
minX = Math.min(minX, x);
minY = Math.min(minY, y);
maxX = Math.max(maxX, x);
maxY = Math.max(maxY, y);
}
}
}
width = maxX - minX + 1;
height = maxY - minY + 1;
/* Stretch cursor if still bigger than 16x16. */
if (width > 16 || height > 16) {
int newWidth = Math.min(width, 16);
int newHeight = Math.min(height, 16);
ImageData newSource =
new ImageData(newWidth, newHeight, source.depth, source.palette,
1, null, 0, null, null, -1, -1, source.type,
source.x, source.y, source.disposalMethod, source.delayTime);
ImageData newMask = new ImageData(newWidth, newHeight, mask.depth,
mask.palette, 1, null, 0, null, null, -1, -1, mask.type,
mask.x, mask.y, mask.disposalMethod, mask.delayTime);
ImageData.blit(ImageData.BLIT_SRC,
source.data, source.depth, source.bytesPerLine, source.getByteOrder(), minX, minY, width, height, null, null, null,
ImageData.ALPHA_OPAQUE, null, 0, minX, minY,
newSource.data, newSource.depth, newSource.bytesPerLine, newSource.getByteOrder(), 0, 0, newWidth, newHeight, null, null, null,
false, false);
ImageData.blit(ImageData.BLIT_SRC,
mask.data, mask.depth, mask.bytesPerLine, mask.getByteOrder(), minX, minY, width, height, null, null, null,
ImageData.ALPHA_OPAQUE, null, 0, minX, minY,
newMask.data, newMask.depth, newMask.bytesPerLine, newMask.getByteOrder(), 0, 0, newWidth, newHeight, null, null, null,
false, false);
width = newWidth;
height = newHeight;
minX = minY = 0;
source = newSource;
mask = newMask;
}
}
/* Create the cursor */
org.eclipse.swt.internal.carbon.Cursor cursor = new org.eclipse.swt.internal.carbon.Cursor();
byte[] srcData = cursor.data;
byte[] maskData = cursor.mask;
for (int y= 0; y < height; y++) {
short d = 0, m = 0;
for (int x = 0; x < width; x++) {
int bit = 1 << (width - 1 - x);
if (source.getPixel(x + minX, y + minY) == 0) {
if (mask.getPixel(x + minX, y + minY) != 0) {
d |= bit;
m |= bit;
}
} else {
if (mask.getPixel(x + minX, y + minY) != 0) m |= bit;
}
}
srcData[y * 2] = (byte)(d >> 8);
srcData[y * 2 + 1] = (byte)(d & 0xFF);
maskData[y * 2] = (byte)(m >> 8);
maskData[y * 2 + 1] = (byte)(m & 0xFF);
}
cursor.hotSpot_h = (short)Math.max(0, Math.min(15, hotspotX - minX));
cursor.hotSpot_v = (short)Math.max(0, Math.min(15, hotspotY - minY));
handle = OS.NewPtr(org.eclipse.swt.internal.carbon.Cursor.sizeof);
if (handle == 0) SWT.error(SWT.ERROR_NO_HANDLES);
OS.memmove(handle, cursor, org.eclipse.swt.internal.carbon.Cursor.sizeof);
}
init();
}
void destroy() {
switch (handle) {
case OS.kThemePointingHandCursor:
case OS.kThemeArrowCursor:
case OS.kThemeSpinningCursor:
case OS.kThemeCrossCursor:
case OS.kThemeWatchCursor:
case OS.kThemeIBeamCursor:
case OS.kThemeNotAllowedCursor:
case OS.kThemeResizeLeftRightCursor:
case OS.kThemeResizeLeftCursor:
case OS.kThemeResizeRightCursor:
case OS.kThemeResizeUpDownCursor:
case OS.kThemeResizeUpCursor:
case OS.kThemeResizeDownCursor:
break;
default:
if (OS.VERSION >= 0x1040) {
Cocoa.objc_msgSend(handle, Cocoa.S_release);
} else {
OS.DisposePtr(handle);
}
}
handle = -1;
}
/**
* Compares the argument to the receiver, and returns true
* if they represent the <em>same</em> object using a class
* specific comparison.
*
* @param object the object to compare with this object
* @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise
*
* @see #hashCode
*/
public boolean equals (Object object) {
if (object == this) return true;
if (!(object instanceof Cursor)) return false;
Cursor cursor = (Cursor) object;
return device == cursor.device && handle == cursor.handle;
}
/**
* Returns an integer hash code for the receiver. Any two
* objects that return <code>true</code> when passed to
* <code>equals</code> must return the same value for this
* method.
*
* @return the receiver's hash
*
* @see #equals
*/
public int hashCode () {
return handle;
}
/**
* Returns <code>true</code> if the cursor has been disposed,
* and <code>false</code> otherwise.
* <p>
* This method gets the dispose state for the cursor.
* When a cursor has been disposed, it is an error to
* invoke any other method (except {@link #dispose()}) using the cursor.
*
* @return <code>true</code> when the cursor is disposed and <code>false</code> otherwise
*/
public boolean isDisposed() {
return handle == -1;
}
/**
* Returns a string containing a concise, human-readable
* description of the receiver.
*
* @return a string representation of the receiver
*/
public String toString () {
if (isDisposed()) return "Cursor {*DISPOSED*}";
return "Cursor {" + handle + "}";
}
/**
* Invokes platform specific functionality to allocate a new cursor.
* <p>
* <b>IMPORTANT:</b> This method is <em>not</em> part of the public
* API for <code>Cursor</code>. It is marked public only so that it
* can be shared within the packages provided by SWT. It is not
* available on all platforms, and should never be called from
* application code.
* </p>
*
* @param device the device on which to allocate the color
* @param handle the handle for the cursor
*
* @noreference This method is not intended to be referenced by clients.
*/
public static Cursor carbon_new(Device device, int handle) {
Cursor cursor = new Cursor(device);
cursor.handle = handle;
return cursor;
}
}