diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Cursor.java')
-rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Cursor.java | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Cursor.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Cursor.java deleted file mode 100644 index 52658518c6..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Cursor.java +++ /dev/null @@ -1,302 +0,0 @@ -package org.eclipse.swt.graphics; - -/* - * (c) Copyright IBM Corp. 2000, 2001. - * All Rights Reserved - */ - -import org.eclipse.swt.*; -import org.eclipse.swt.internal.gtk.*; -import org.eclipse.swt.widgets.*; -import org.eclipse.swt.internal.image.*; - -/** - * 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> - */ -public final class Cursor { - /** - * the handle to the OS cursor resource - * (Warning: This field is platform dependent) - */ - public int handle; -Cursor () { -} -/** - * 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_INVALID_ARGUMENT - when an unknown style is specified</li> - * </ul> - * - * @see Cursor for the supported style values - */ -public Cursor(Device display, int style) { - int osFlag = 0; - switch (style) { - case SWT.CURSOR_ARROW: - osFlag = OS.GDK_LEFT_PTR; - break; - case SWT.CURSOR_WAIT: - osFlag = OS.GDK_WATCH; - break; - case SWT.CURSOR_CROSS: - osFlag = OS.GDK_CROSS; - break; - case SWT.CURSOR_APPSTARTING: - osFlag = OS.GDK_WATCH; - break; - case SWT.CURSOR_HAND: - osFlag = OS.GDK_HAND1; - break; - case SWT.CURSOR_HELP: - osFlag = OS.GDK_QUESTION_ARROW; - break; - case SWT.CURSOR_SIZEALL: - osFlag = OS.GDK_DIAMOND_CROSS; - break; - case SWT.CURSOR_SIZENESW: - osFlag = OS.GDK_SIZING; - break; - case SWT.CURSOR_SIZENS: - osFlag = OS.GDK_DOUBLE_ARROW; - break; - case SWT.CURSOR_SIZENWSE: - osFlag = OS.GDK_SIZING; - break; - case SWT.CURSOR_SIZEWE: - osFlag = OS.GDK_SB_H_DOUBLE_ARROW; - break; - case SWT.CURSOR_SIZEN: - osFlag = OS.GDK_TOP_SIDE; - break; - case SWT.CURSOR_SIZES: - osFlag = OS.GDK_BOTTOM_SIDE; - break; - case SWT.CURSOR_SIZEE: - osFlag = OS.GDK_RIGHT_SIDE; - break; - case SWT.CURSOR_SIZEW: - osFlag = OS.GDK_LEFT_SIDE; - break; - case SWT.CURSOR_SIZENE: - osFlag = OS.GDK_TOP_RIGHT_CORNER; - break; - case SWT.CURSOR_SIZESE: - osFlag = OS.GDK_BOTTOM_RIGHT_CORNER; - break; - case SWT.CURSOR_SIZESW: - osFlag = OS.GDK_BOTTOM_LEFT_CORNER; - break; - case SWT.CURSOR_SIZENW: - osFlag = OS.GDK_TOP_LEFT_CORNER; - break; - case SWT.CURSOR_UPARROW: - osFlag = OS.GDK_SB_UP_ARROW; - break; - case SWT.CURSOR_IBEAM: - osFlag = OS.GDK_XTERM; - break; - case SWT.CURSOR_NO: - osFlag = OS.GDK_X_CURSOR; - break; - default: - error(SWT.ERROR_INVALID_ARGUMENT); - } - this.handle = OS.gdk_cursor_new(osFlag); -} -/** - * Constructs a new cursor given a device, image and mask - * data describing the desired cursor appearance, and the x - * and y co-ordinates 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 - when a null argument is passed that is not allowed</li> - * <li>ERROR_INVALID_ARGUMENT - if the source and the mask are not the same - * size, or either is not of depth one, or if the hotspot is outside - * the bounds of the image</li> - * </ul> - * @exception SWTError <ul> - * <li>ERROR_NO_HANDLES - if an error occurred constructing the cursor</li> - * </ul> - */ -public Cursor(Device display, ImageData source, ImageData mask, int hotspotX, int hotspotY) { - if (source == null) error(SWT.ERROR_NULL_ARGUMENT); - if (mask == null) { - if (!(source.getTransparencyType() == SWT.TRANSPARENCY_MASK)) 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) { - error(SWT.ERROR_INVALID_ARGUMENT); - } - /* Check depths */ - if (mask.depth != 1) error(SWT.ERROR_INVALID_ARGUMENT); - if (source.depth != 1) error(SWT.ERROR_INVALID_ARGUMENT); - /* Check the hotspots */ - if (hotspotX >= source.width || hotspotX < 0 || - hotspotY >= source.height || hotspotY < 0) { - error(SWT.ERROR_INVALID_ARGUMENT); - } - - /* Swap the bits if necessary */ - byte[] sourceData = new byte[source.data.length]; - byte[] maskData = new byte[mask.data.length]; - /* Swap the bits in each byte */ - 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]; - } - 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]; - } - - int sourcePixmap = OS.gdk_bitmap_create_from_data(0, sourceData, source.width, source.height); - if (sourcePixmap==0) SWT.error(SWT.ERROR_NO_HANDLES); - int maskPixmap = OS.gdk_bitmap_create_from_data(0, maskData, source.width, source.height); - if (maskPixmap==0) SWT.error(SWT.ERROR_NO_HANDLES); - - /* Get the colors */ - GdkColor foreground = new GdkColor(); - foreground.red = 0; - foreground.green = 0; - foreground.blue = 0; - GdkColor background = new GdkColor(); - background.red = (short)65535; - background.green = (short)65535; - background.blue = (short)65535; - - /* Create the cursor */ - /* For some reason, mask and source take reverse roles, both here and on Motif */ - handle = OS.gdk_cursor_new_from_pixmap (maskPixmap, sourcePixmap, foreground, background, hotspotX, hotspotY); - /* Dispose the pixmaps */ - OS.gdk_pixmap_unref (sourcePixmap); - OS.gdk_pixmap_unref (maskPixmap); - if (handle == 0) error(SWT.ERROR_NO_HANDLES); -} -/** - * Disposes of the operating system resources associated with - * the cursor. Applications must dispose of all cursors which - * they allocate. - */ -public void dispose() { - if (handle != 0) OS.gdk_cursor_destroy(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) { - return (object == this) || ((object instanceof Cursor) && (handle == ((Cursor)object).handle)); -} -void error(int code) { - throw new SWTError(code); -} -public static Cursor gtk_new(int handle) { - Cursor cursor = new Cursor(); - cursor.handle = handle; - return cursor; -} -/** - * Returns an integer hash code for the receiver. Any two - * objects which 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; -} - -/** - * 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 + "}"; -} -} |