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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/graphics/Cursor.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/graphics/Cursor.java | 441 |
1 files changed, 0 insertions, 441 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/graphics/Cursor.java b/bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/graphics/Cursor.java deleted file mode 100755 index cc3c048e0f..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/graphics/Cursor.java +++ /dev/null @@ -1,441 +0,0 @@ -/******************************************************************************* - * 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.motif.*; -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> - */ - public int handle; - - static final byte[] APPSTARTING_SRC = { - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, - 0x0c, 0x00, 0x00, 0x00, 0x1c, 0x00, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x00, - 0x7c, 0x00, 0x00, 0x00, (byte)0xfc, 0x00, 0x00, 0x00, (byte)0xfc, 0x01, 0x00, 0x00, - (byte)0xfc, 0x3b, 0x00, 0x00, 0x7c, 0x38, 0x00, 0x00, 0x6c, 0x54, 0x00, 0x00, - (byte)0xc4, (byte)0xdc, 0x00, 0x00, (byte)0xc0, 0x44, 0x00, 0x00, (byte)0x80, 0x39, 0x00, 0x00, - (byte)0x80, 0x39, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; - - static final byte[] APPSTARTING_MASK = { - 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x00, 0x00, - 0x1e, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00, - (byte)0xfe, 0x00, 0x00, 0x00, (byte)0xfe, 0x01, 0x00, 0x00, (byte)0xfe, 0x3b, 0x00, 0x00, - (byte)0xfe, 0x7f, 0x00, 0x00, (byte)0xfe, 0x7f, 0x00, 0x00, (byte)0xfe, (byte)0xfe, 0x00, 0x00, - (byte)0xee, (byte)0xff, 0x01, 0x00, (byte)0xe4, (byte)0xff, 0x00, 0x00, (byte)0xc0, 0x7f, 0x00, 0x00, - (byte)0xc0, 0x7f, 0x00, 0x00, (byte)0x80, 0x39, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; - -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> - * - * @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); - int shape = 0; - switch (style) { - case SWT.CURSOR_APPSTARTING: break; - case SWT.CURSOR_ARROW: shape = OS.XC_left_ptr; break; - case SWT.CURSOR_WAIT: shape = OS.XC_watch; break; - case SWT.CURSOR_HAND: shape = OS.XC_hand2; break; - case SWT.CURSOR_CROSS: shape = OS.XC_cross; break; - case SWT.CURSOR_HELP: shape = OS.XC_question_arrow; break; - case SWT.CURSOR_SIZEALL: shape = OS.XC_fleur; break; - case SWT.CURSOR_SIZENESW: shape = OS.XC_sizing; break; - case SWT.CURSOR_SIZENS: shape = OS.XC_double_arrow; break; - case SWT.CURSOR_SIZENWSE: shape = OS.XC_sizing; break; - case SWT.CURSOR_SIZEWE: shape = OS.XC_sb_h_double_arrow; break; - case SWT.CURSOR_SIZEN: shape = OS.XC_top_side; break; - case SWT.CURSOR_SIZES: shape = OS.XC_bottom_side; break; - case SWT.CURSOR_SIZEE: shape = OS.XC_right_side; break; - case SWT.CURSOR_SIZEW: shape = OS.XC_left_side; break; - case SWT.CURSOR_SIZENE: shape = OS.XC_top_right_corner; break; - case SWT.CURSOR_SIZESE: shape = OS.XC_bottom_right_corner; break; - case SWT.CURSOR_SIZESW: shape = OS.XC_bottom_left_corner; break; - case SWT.CURSOR_SIZENW: shape = OS.XC_top_left_corner; break; - case SWT.CURSOR_UPARROW: shape = OS.XC_sb_up_arrow; break; - case SWT.CURSOR_IBEAM: shape = OS.XC_xterm; break; - case SWT.CURSOR_NO: shape = OS.XC_X_cursor; break; - default: - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } - if (shape == 0 && style == SWT.CURSOR_APPSTARTING) { - handle = createCursor(APPSTARTING_SRC, APPSTARTING_MASK, 32, 32, 2, 2, true); - } else { - handle = OS.XCreateFontCursor(this.device.xDisplay, shape); - } - if (handle == 0) SWT.error(SWT.ERROR_NO_HANDLES); - 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_INVALID_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); - } - /* Convert depth to 1 */ - source = ImageData.convertMask(source); - mask = ImageData.convertMask(mask); - byte[] sourceData = new byte[source.data.length]; - byte[] maskData = new byte[mask.data.length]; - /* Swap the bits in each byte and convert to appropriate scanline pad */ - byte[] data = source.data; - for (int i = 0; i < data.length; i++) { - byte s = data[i]; - sourceData[i] = (byte)(((s & 0x80) >> 7) | - ((s & 0x40) >> 5) | - ((s & 0x20) >> 3) | - ((s & 0x10) >> 1) | - ((s & 0x08) << 1) | - ((s & 0x04) << 3) | - ((s & 0x02) << 5) | - ((s & 0x01) << 7)); - sourceData[i] = (byte) ~sourceData[i]; - } - sourceData = ImageData.convertPad(sourceData, source.width, source.height, source.depth, source.scanlinePad, 1); - data = mask.data; - for (int i = 0; i < data.length; i++) { - byte s = data[i]; - maskData[i] = (byte)(((s & 0x80) >> 7) | - ((s & 0x40) >> 5) | - ((s & 0x20) >> 3) | - ((s & 0x10) >> 1) | - ((s & 0x08) << 1) | - ((s & 0x04) << 3) | - ((s & 0x02) << 5) | - ((s & 0x01) << 7)); - maskData[i] = (byte) ~maskData[i]; - } - maskData = ImageData.convertPad(maskData, mask.width, mask.height, mask.depth, mask.scanlinePad, 1); - /* Note that the mask and source are reversed */ - handle = createCursor(maskData, sourceData, source.width, source.height, hotspotX, hotspotY, true); - if (handle == 0) SWT.error(SWT.ERROR_NO_HANDLES); - init(); -} -/** - * 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); - } - 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; - } - - /* Swap the bits in each byte and convert to appropriate scanline pad */ - byte[] sourceData = new byte[source.data.length]; - byte[] maskData = new byte[mask.data.length]; - byte[] data = source.data; - for (int i = 0; i < data.length; i++) { - byte s = data[i]; - sourceData[i] = (byte)(((s & 0x80) >> 7) | - ((s & 0x40) >> 5) | - ((s & 0x20) >> 3) | - ((s & 0x10) >> 1) | - ((s & 0x08) << 1) | - ((s & 0x04) << 3) | - ((s & 0x02) << 5) | - ((s & 0x01) << 7)); - } - sourceData = ImageData.convertPad(sourceData, source.width, source.height, source.depth, source.scanlinePad, 1); - data = mask.data; - for (int i = 0; i < data.length; i++) { - byte s = data[i]; - maskData[i] = (byte)(((s & 0x80) >> 7) | - ((s & 0x40) >> 5) | - ((s & 0x20) >> 3) | - ((s & 0x10) >> 1) | - ((s & 0x08) << 1) | - ((s & 0x04) << 3) | - ((s & 0x02) << 5) | - ((s & 0x01) << 7)); - } - maskData = ImageData.convertPad(maskData, mask.width, mask.height, mask.depth, mask.scanlinePad, 1); - handle = createCursor(sourceData, maskData, source.width, source.height, hotspotX, hotspotY, false); - if (handle == 0) SWT.error(SWT.ERROR_NO_HANDLES); - init(); -} -int createCursor(byte[] sourceData, byte[] maskData, int width, int height, int hotspotX, int hotspotY, boolean reverse) { - int xDisplay = device.xDisplay; - int drawable = OS.XDefaultRootWindow(xDisplay); - int sourcePixmap = OS.XCreateBitmapFromData(xDisplay, drawable, sourceData, width, height); - int maskPixmap = OS.XCreateBitmapFromData(xDisplay, drawable, maskData, width, height); - int cursor = 0; - if (sourcePixmap != 0 && maskPixmap != 0) { - int screenNum = OS.XDefaultScreen(xDisplay); - XColor foreground = new XColor(); - foreground.pixel = !reverse ? OS.XWhitePixel(xDisplay, screenNum) : OS.XBlackPixel(xDisplay, screenNum); - if (!reverse) foreground.red = foreground.green = foreground.blue = (short)0xFFFF; - XColor background = new XColor(); - background.pixel = reverse ? OS.XWhitePixel(xDisplay, screenNum) : OS.XBlackPixel(xDisplay, screenNum); - if (reverse) background.red = background.green = background.blue = (short)0xFFFF; - cursor = OS.XCreatePixmapCursor(xDisplay, sourcePixmap, maskPixmap, foreground, background, hotspotX, hotspotY); - } - if (sourcePixmap != 0) OS.XFreePixmap(xDisplay, sourcePixmap); - if (maskPixmap != 0) OS.XFreePixmap(xDisplay, maskPixmap); - return cursor; -} -void destroy() { - OS.XFreeCursor(device.xDisplay, handle); - handle = 0; -} -/** - * 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 using the cursor. - * - * @return <code>true</code> when the cursor is disposed and <code>false</code> otherwise - */ -public boolean isDisposed() { - return handle == 0; -} -public static Cursor motif_new(Device device, int handle) { - Cursor cursor = new Cursor(device); - cursor.handle = handle; - return cursor; -} -/** - * 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 + "}"; -} -} |