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author | Felipe Heidrich <fheidric> | 2009-06-30 22:00:12 +0000 |
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committer | Felipe Heidrich <fheidric> | 2009-06-30 22:00:12 +0000 |
commit | f664d297f7bb009784868bf3fcf0b3e3bb9a646b (patch) | |
tree | 54012fe4929893eef4891c88cbbf5841272ff433 /bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/graphics/Image.java | |
parent | bc18a5e014088ce811f09c603b88361094486062 (diff) | |
download | eclipse.platform.swt-f664d297f7bb009784868bf3fcf0b3e3bb9a646b.tar.gz eclipse.platform.swt-f664d297f7bb009784868bf3fcf0b3e3bb9a646b.tar.xz eclipse.platform.swt-f664d297f7bb009784868bf3fcf0b3e3bb9a646b.zip |
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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/graphics/Image.java')
-rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/graphics/Image.java | 1127 |
1 files changed, 0 insertions, 1127 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/graphics/Image.java b/bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/graphics/Image.java deleted file mode 100644 index 90366cfe19..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/graphics/Image.java +++ /dev/null @@ -1,1127 +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.wpf.*; -import org.eclipse.swt.*; - -import java.io.*; - -/** - * Instances of this class are graphics which have been prepared - * for display on a specific device. That is, they are ready - * to paint using methods such as <code>GC.drawImage()</code> - * and display on widgets with, for example, <code>Button.setImage()</code>. - * <p> - * If loaded from a file format that supports it, an - * <code>Image</code> may have transparency, meaning that certain - * pixels are specified as being transparent when drawn. Examples - * of file formats that support transparency are GIF and PNG. - * </p><p> - * There are two primary ways to use <code>Images</code>. - * The first is to load a graphic file from disk and create an - * <code>Image</code> from it. This is done using an <code>Image</code> - * constructor, for example: - * <pre> - * Image i = new Image(device, "C:\\graphic.bmp"); - * </pre> - * A graphic file may contain a color table specifying which - * colors the image was intended to possess. In the above example, - * these colors will be mapped to the closest available color in - * SWT. It is possible to get more control over the mapping of - * colors as the image is being created, using code of the form: - * <pre> - * ImageData data = new ImageData("C:\\graphic.bmp"); - * RGB[] rgbs = data.getRGBs(); - * // At this point, rgbs contains specifications of all - * // the colors contained within this image. You may - * // allocate as many of these colors as you wish by - * // using the Color constructor Color(RGB), then - * // create the image: - * Image i = new Image(device, data); - * </pre> - * <p> - * Applications which require even greater control over the image - * loading process should use the support provided in class - * <code>ImageLoader</code>. - * </p><p> - * Application code must explicitly invoke the <code>Image.dispose()</code> - * method to release the operating system resources managed by each instance - * when those instances are no longer required. - * </p> - * - * @see Color - * @see ImageData - * @see ImageLoader - * @see <a href="http://www.eclipse.org/swt/snippets/#image">Image snippets</a> - * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Examples: GraphicsExample, ImageAnalyzer</a> - * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> - */ - -public final class Image extends Resource implements Drawable { - - /** - * specifies whether the receiver is a bitmap or an icon - * (one of <code>SWT.BITMAP</code>, <code>SWT.ICON</code>) - * <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 type; - - /** - * the handle to the OS image 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; - - /** - * specifies the transparent pixel - */ - int transparentPixel = -1; - - /** - * the GC which is drawing on the image - */ - GC memGC; - - /** - * the alpha data for the image - */ - byte[] alphaData; - - /** - * the global alpha value to be used for every pixel - */ - int alpha = -1; - - /** - * the image data used to create this image if it is a - * icon. Used only in WinCE - */ - ImageData data; - - /** - * width of the image - */ - int width = -1; - - /** - * height of the image - */ - int height = -1; - - /** - * specifies the default scanline padding - */ - static final int DEFAULT_SCANLINE_PAD = 4; - -/** - * Prevents uninitialized instances from being created outside the package. - */ -Image (Device device) { - super(device); -} - -/** - * Constructs an empty instance of this class with the - * specified width and height. The result may be drawn upon - * by creating a GC and using any of its drawing operations, - * as shown in the following example: - * <pre> - * Image i = new Image(device, width, height); - * GC gc = new GC(i); - * gc.drawRectangle(0, 0, 50, 50); - * gc.dispose(); - * </pre> - * <p> - * Note: Some platforms may have a limitation on the size - * of image that can be created (size depends on width, height, - * and depth). For example, Windows 95, 98, and ME do not allow - * images larger than 16M. - * </p> - * - * @param device the device on which to create the image - * @param width the width of the new image - * @param height the height of the new image - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> - * <li>ERROR_INVALID_ARGUMENT - if either the width or height is negative or zero</li> - * </ul> - * @exception SWTError <ul> - * <li>ERROR_NO_HANDLES if a handle could not be obtained for image creation</li> - * </ul> - */ -public Image(Device device, int width, int height) { - super(device); - init(width, height); - init(); -} - -/** - * Constructs a new instance of this class based on the - * provided image, with an appearance that varies depending - * on the value of the flag. The possible flag values are: - * <dl> - * <dt><b>{@link SWT#IMAGE_COPY}</b></dt> - * <dd>the result is an identical copy of srcImage</dd> - * <dt><b>{@link SWT#IMAGE_DISABLE}</b></dt> - * <dd>the result is a copy of srcImage which has a <em>disabled</em> look</dd> - * <dt><b>{@link SWT#IMAGE_GRAY}</b></dt> - * <dd>the result is a copy of srcImage which has a <em>gray scale</em> look</dd> - * </dl> - * - * @param device the device on which to create the image - * @param srcImage the image to use as the source - * @param flag the style, either <code>IMAGE_COPY</code>, <code>IMAGE_DISABLE</code> or <code>IMAGE_GRAY</code> - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> - * <li>ERROR_NULL_ARGUMENT - if srcImage is null</li> - * <li>ERROR_INVALID_ARGUMENT - if the flag is not one of <code>IMAGE_COPY</code>, <code>IMAGE_DISABLE</code> or <code>IMAGE_GRAY</code></li> - * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_INVALID_IMAGE - if the image is not a bitmap or an icon, or is otherwise in an invalid state</li> - * <li>ERROR_UNSUPPORTED_DEPTH - if the depth of the image is not supported</li> - * </ul> - * @exception SWTError <ul> - * <li>ERROR_NO_HANDLES if a handle could not be obtained for image creation</li> - * </ul> - */ -public Image(Device device, Image srcImage, int flag) { - super(device); - device = this.device; - if (srcImage == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (srcImage.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - Rectangle rect = srcImage.getBounds(); - switch (flag) { - case SWT.IMAGE_COPY: { - type = srcImage.type; - handle = OS.BitmapSource_Clone(srcImage.handle); - transparentPixel = srcImage.transparentPixel; - alpha = srcImage.alpha; - if (srcImage.alphaData != null) { - alphaData = new byte[srcImage.alphaData.length]; - System.arraycopy(srcImage.alphaData, 0, alphaData, 0, alphaData.length); - } - break; - } - case SWT.IMAGE_DISABLE: { - ImageData data = srcImage.getImageData(); - PaletteData palette = data.palette; - RGB[] rgbs = new RGB[3]; - rgbs[0] = device.getSystemColor(SWT.COLOR_BLACK).getRGB(); - rgbs[1] = device.getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW).getRGB(); - rgbs[2] = device.getSystemColor(SWT.COLOR_WIDGET_BACKGROUND).getRGB(); - ImageData newData = new ImageData(rect.width, rect.height, 8, new PaletteData(rgbs)); - newData.alpha = data.alpha; - newData.alphaData = data.alphaData; - newData.maskData = data.maskData; - newData.maskPad = data.maskPad; - if (data.transparentPixel != -1) newData.transparentPixel = 0; - - /* Convert the pixels. */ - int[] scanline = new int[rect.width]; - int[] maskScanline = null; - ImageData mask = null; - if (data.maskData != null) mask = data.getTransparencyMask(); - if (mask != null) maskScanline = new int[rect.width]; - int redMask = palette.redMask; - int greenMask = palette.greenMask; - int blueMask = palette.blueMask; - int redShift = palette.redShift; - int greenShift = palette.greenShift; - int blueShift = palette.blueShift; - for (int y=0; y<rect.height; y++) { - int offset = y * newData.bytesPerLine; - data.getPixels(0, y, rect.width, scanline, 0); - if (mask != null) mask.getPixels(0, y, rect.width, maskScanline, 0); - for (int x=0; x<rect.width; x++) { - int pixel = scanline[x]; - if (!(pixel == data.transparentPixel || (mask != null && maskScanline[x] == 0))) { - int red, green, blue; - if (palette.isDirect) { - red = pixel & redMask; - red = (redShift < 0) ? red >>> -redShift : red << redShift; - green = pixel & greenMask; - green = (greenShift < 0) ? green >>> -greenShift : green << greenShift; - blue = pixel & blueMask; - blue = (blueShift < 0) ? blue >>> -blueShift : blue << blueShift; - } else { - red = palette.colors[pixel].red; - green = palette.colors[pixel].green; - blue = palette.colors[pixel].blue; - } - int intensity = red * red + green * green + blue * blue; - if (intensity < 98304) { - newData.data[offset] = (byte)1; - } else { - newData.data[offset] = (byte)2; - } - } - offset++; - } - } - init (newData); - break; - } - case SWT.IMAGE_GRAY: { - ImageData data = srcImage.getImageData(); - PaletteData palette = data.palette; - ImageData newData = data; - if (!palette.isDirect) { - /* Convert the palette entries to gray. */ - RGB [] rgbs = palette.getRGBs(); - for (int i=0; i<rgbs.length; i++) { - if (data.transparentPixel != i) { - RGB color = rgbs [i]; - int red = color.red; - int green = color.green; - int blue = color.blue; - int intensity = (red+red+green+green+green+green+green+blue) >> 3; - color.red = color.green = color.blue = intensity; - } - } - newData.palette = new PaletteData(rgbs); - } else { - /* Create a 8 bit depth image data with a gray palette. */ - RGB[] rgbs = new RGB[256]; - for (int i=0; i<rgbs.length; i++) { - rgbs[i] = new RGB(i, i, i); - } - newData = new ImageData(rect.width, rect.height, 8, new PaletteData(rgbs)); - newData.alpha = data.alpha; - newData.alphaData = data.alphaData; - newData.maskData = data.maskData; - newData.maskPad = data.maskPad; - if (data.transparentPixel != -1) newData.transparentPixel = 254; - - /* Convert the pixels. */ - int[] scanline = new int[rect.width]; - int redMask = palette.redMask; - int greenMask = palette.greenMask; - int blueMask = palette.blueMask; - int redShift = palette.redShift; - int greenShift = palette.greenShift; - int blueShift = palette.blueShift; - for (int y=0; y<rect.height; y++) { - int offset = y * newData.bytesPerLine; - data.getPixels(0, y, rect.width, scanline, 0); - for (int x=0; x<rect.width; x++) { - int pixel = scanline[x]; - if (pixel != data.transparentPixel) { - int red = pixel & redMask; - red = (redShift < 0) ? red >>> -redShift : red << redShift; - int green = pixel & greenMask; - green = (greenShift < 0) ? green >>> -greenShift : green << greenShift; - int blue = pixel & blueMask; - blue = (blueShift < 0) ? blue >>> -blueShift : blue << blueShift; - int intensity = (red+red+green+green+green+green+green+blue) >> 3; - if (newData.transparentPixel == intensity) intensity = 255; - newData.data[offset] = (byte)intensity; - } else { - newData.data[offset] = (byte)254; - } - offset++; - } - } - } - init (newData); - break; - } - default: - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } - init(); -} - -/** - * Constructs an empty instance of this class with the - * width and height of the specified rectangle. The result - * may be drawn upon by creating a GC and using any of its - * drawing operations, as shown in the following example: - * <pre> - * Image i = new Image(device, boundsRectangle); - * GC gc = new GC(i); - * gc.drawRectangle(0, 0, 50, 50); - * gc.dispose(); - * </pre> - * <p> - * Note: Some platforms may have a limitation on the size - * of image that can be created (size depends on width, height, - * and depth). For example, Windows 95, 98, and ME do not allow - * images larger than 16M. - * </p> - * - * @param device the device on which to create the image - * @param bounds a rectangle specifying the image's width and height (must not be null) - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> - * <li>ERROR_NULL_ARGUMENT - if the bounds rectangle is null</li> - * <li>ERROR_INVALID_ARGUMENT - if either the rectangle's width or height is negative</li> - * </ul> - * @exception SWTError <ul> - * <li>ERROR_NO_HANDLES if a handle could not be obtained for image creation</li> - * </ul> - */ -public Image(Device device, Rectangle bounds) { - super(device); - if (bounds == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - init(bounds.width, bounds.height); - init(); -} - -/** - * Constructs an instance of this class from the given - * <code>ImageData</code>. - * - * @param device the device on which to create the image - * @param data the image data to create the image from (must not be null) - * - * @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 data is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_UNSUPPORTED_DEPTH - if the depth of the ImageData is not supported</li> - * </ul> - * @exception SWTError <ul> - * <li>ERROR_NO_HANDLES if a handle could not be obtained for image creation</li> - * </ul> - */ -public Image(Device device, ImageData data) { - super(device); - init(data); - init(); -} - -/** - * Constructs an instance of this class, whose type is - * <code>SWT.ICON</code>, from the two given <code>ImageData</code> - * objects. The two images must be the same size. Pixel transparency - * in either image will be ignored. - * <p> - * The mask image should contain white wherever the icon is to be visible, - * and black wherever the icon is to be transparent. In addition, - * the source image should contain black wherever the icon is to be - * transparent. - * </p> - * - * @param device the device on which to create the icon - * @param source the color data for the icon - * @param mask the mask data for the icon - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> - * <li>ERROR_NULL_ARGUMENT - if either the source or mask is null </li> - * <li>ERROR_INVALID_ARGUMENT - if source and mask are different sizes</li> - * </ul> - * @exception SWTError <ul> - * <li>ERROR_NO_HANDLES if a handle could not be obtained for image creation</li> - * </ul> - */ -public Image(Device device, ImageData source, ImageData mask) { - super(device); - if (source == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (mask == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (source.width != mask.width || source.height != mask.height) { - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } - mask = ImageData.convertMask (mask); - ImageData image = new ImageData(source.width, source.height, source.depth, source.palette, source.scanlinePad, source.data); - image.maskPad = mask.scanlinePad; - image.maskData = mask.data; - init(image); - init(); -} - -/** - * Constructs an instance of this class by loading its representation - * from the specified input stream. Throws an error if an error - * occurs while loading the image, or if the result is an image - * of an unsupported type. Application code is still responsible - * for closing the input stream. - * <p> - * This constructor is provided for convenience when loading a single - * image only. If the stream contains multiple images, only the first - * one will be loaded. To load multiple images, use - * <code>ImageLoader.load()</code>. - * </p><p> - * This constructor may be used to load a resource as follows: - * </p> - * <pre> - * static Image loadImage (Display display, Class clazz, String string) { - * InputStream stream = clazz.getResourceAsStream (string); - * if (stream == null) return null; - * Image image = null; - * try { - * image = new Image (display, stream); - * } catch (SWTException ex) { - * } finally { - * try { - * stream.close (); - * } catch (IOException ex) {} - * } - * return image; - * } - * </pre> - * - * @param device the device on which to create the image - * @param stream the input stream to load the image from - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> - * <li>ERROR_NULL_ARGUMENT - if the stream is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_IO - if an IO error occurs while reading from the stream</li> - * <li>ERROR_INVALID_IMAGE - if the image stream contains invalid data </li> - * <li>ERROR_UNSUPPORTED_DEPTH - if the image stream describes an image with an unsupported depth</li> - * <li>ERROR_UNSUPPORTED_FORMAT - if the image stream contains an unrecognized format</li> - * </ul> - * @exception SWTError <ul> - * <li>ERROR_NO_HANDLES if a handle could not be obtained for image creation</li> - * </ul> - */ -public Image (Device device, InputStream stream) { - super(device); - init(new ImageData(stream)); - init(); -} - -/** - * Constructs an instance of this class by loading its representation - * from the file with the specified name. Throws an error if an error - * occurs while loading the image, or if the result is an image - * of an unsupported type. - * <p> - * This constructor is provided for convenience when loading - * a single image only. If the specified file contains - * multiple images, only the first one will be used. - * - * @param device the device on which to create the image - * @param filename the name of the file to load the image from - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> - * <li>ERROR_NULL_ARGUMENT - if the file name is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_IO - if an IO error occurs while reading from the file</li> - * <li>ERROR_INVALID_IMAGE - if the image file contains invalid data </li> - * <li>ERROR_UNSUPPORTED_DEPTH - if the image file describes an image with an unsupported depth</li> - * <li>ERROR_UNSUPPORTED_FORMAT - if the image file contains an unrecognized format</li> - * </ul> - * @exception SWTError <ul> - * <li>ERROR_NO_HANDLES if a handle could not be obtained for image creation</li> - * </ul> - */ -public Image (Device device, String filename) { - super(device); - if (filename == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - try { - handle = OS.gcnew_BitmapImage(); - if (handle == 0) SWT.error(SWT.ERROR_NO_HANDLES); - int length = filename.length(); - char[] chars = new char[length + 1]; - filename.getChars(0, length, chars, 0); - int str = OS.gcnew_String(chars); - if (str == 0) SWT.error(SWT.ERROR_NO_HANDLES); - if (!OS.File_Exists(str)) SWT.error(SWT.ERROR_IO); - int uri = OS.gcnew_Uri(str, OS.UriKind_RelativeOrAbsolute); - if (uri == 0) SWT.error(SWT.ERROR_NO_HANDLES); - OS.BitmapImage_BeginInit(handle); - OS.BitmapImage_CreateOptions(handle, OS.BitmapCreateOptions_PreservePixelFormat); - OS.BitmapImage_UriSource(handle, uri); - OS.BitmapImage_EndInit(handle); - if (OS.Freezable_CanFreeze(handle)) OS.Freezable_Freeze(handle); - OS.GCHandle_Free(uri); - OS.GCHandle_Free(str); - return; - } catch (SWTException e) {} - init(new ImageData(filename)); - init(); -} - -void destroy() { - if (memGC != null) memGC.dispose(); - OS.GCHandle_Free(handle); - handle = 0; - memGC = null; -} - -/** - * 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 Image)) return false; - Image image = (Image) object; - return device == image.device && handle == image.handle; -} - -/** - * Returns the color to which to map the transparent pixel, or null if - * the receiver has no transparent pixel. - * <p> - * There are certain uses of Images that do not support transparency - * (for example, setting an image into a button or label). In these cases, - * it may be desired to simulate transparency by using the background - * color of the widget to paint the transparent pixels of the image. - * Use this method to check which color will be used in these cases - * in place of transparency. This value may be set with setBackground(). - * <p> - * - * @return the background color of the image, or null if there is no transparency in the image - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public Color getBackground() { - if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (transparentPixel == -1) return null; - //TODO implement Image.getBackground() - return null; -} - -/** - * Returns the bounds of the receiver. The rectangle will always - * have x and y values of 0, and the width and height of the - * image. - * - * @return a rectangle specifying the image's bounds - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_INVALID_IMAGE - if the image is not a bitmap or an icon</li> - * </ul> - */ -public Rectangle getBounds() { - if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (width == -1 || height == -1) { - width = OS.BitmapSource_PixelWidth(handle); - height = OS.BitmapSource_PixelHeight(handle); - } - return new Rectangle(0, 0, width, height); -} - -Point getDPI () { - //TODO - return new Point (96, 96); -} - -/** - * Returns an <code>ImageData</code> based on the receiver - * Modifications made to this <code>ImageData</code> will not - * affect the Image. - * - * @return an <code>ImageData</code> containing the image's data and attributes - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_INVALID_IMAGE - if the image is not a bitmap or an icon</li> - * </ul> - * - * @see ImageData - */ -public ImageData getImageData() { - if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - int format = OS.BitmapSource_Format(handle); - int depth = OS.PixelFormat_BitsPerPixel(format); - int width = OS.BitmapSource_PixelWidth(handle); - int height = OS.BitmapSource_PixelHeight(handle); - int scanlinePad = DEFAULT_SCANLINE_PAD; - int bytesPerLine = (((width * depth + 7) / 8) + (scanlinePad - 1)) / scanlinePad * scanlinePad; - byte[] buffer = new byte[bytesPerLine * height]; - int rect = OS.Int32Rect_Empty(); - OS.BitmapSource_CopyPixels(handle, rect, buffer, buffer.length, bytesPerLine); - OS.GCHandle_Free(rect); - PaletteData paletteData = null; - int palette = OS.BitmapSource_Palette(handle); - if (palette != 0) { - int colors = OS.BitmapPalette_Colors(palette); - int count = OS.ColorList_Count(colors); - RGB[] rgbs = new RGB[count]; - paletteData = new PaletteData(rgbs); - if (count != 0) { - int index = 0; - int enumerator = OS.ColorList_GetEnumerator(colors); - while (OS.IEnumerator_MoveNext(enumerator)) { - int color = OS.ColorList_Current(enumerator); - rgbs[index++] = new RGB(OS.Color_R(color) & 0xFF, OS.Color_G(color) & 0xFF, OS.Color_B(color) & 0xFF); - OS.GCHandle_Free(color); - } - OS.GCHandle_Free(enumerator); - } - OS.GCHandle_Free(colors); - OS.GCHandle_Free(palette); - } else { - int[] formats = { - OS.PixelFormats_Bgr555(), - OS.PixelFormats_Bgr565(), - OS.PixelFormats_Bgr24(), - OS.PixelFormats_Rgb24(), - OS.PixelFormats_Bgr32(), - OS.PixelFormats_Bgra32(), - OS.PixelFormats_Pbgra32(), - OS.PixelFormats_Bgr101010(), - }; - for (int i = 0; i < formats.length; i++) { - if (OS.Object_Equals(format, formats[i])) { - switch (i) { - case 0: paletteData = new PaletteData(0x7C00, 0x3E0, 0x1F); break; - case 1: paletteData = new PaletteData(0xF800, 0x7E0, 0x1F); break; - case 2: paletteData = new PaletteData(0xFF, 0xFF00, 0xFF0000); break; - case 3: paletteData = new PaletteData(0xFF0000, 0xFF00, 0xFF); break; - case 4: - case 5: - case 6: paletteData = new PaletteData(0xFF00, 0xFF0000, 0xFF000000); break; - case 7: paletteData = new PaletteData(0x3FF, 0xFFC00, 0x3FF0000); break; - } - } - OS.GCHandle_Free(formats[i]); - } - } - OS.GCHandle_Free(format); - ImageData data = new ImageData(width, height, depth, paletteData, scanlinePad, buffer); - data.transparentPixel = transparentPixel; - if (transparentPixel == -1 && type == SWT.ICON) { - /* Get the icon mask data */ - int maskPad = 2; - int maskBpl = (((width + 7) / 8) + (maskPad - 1)) / maskPad * maskPad; - byte[] maskData = new byte[height * maskBpl]; - int offset = 3, maskOffset = 0; - for (int y = 0; y<height; y++) { - for (int x = 0; x<width; x++) { - if (buffer[offset] != 0) { - maskData[maskOffset + (x >> 3)] |= (1 << (7 - (x & 0x7))); - } else { - maskData[maskOffset + (x >> 3)] &= ~(1 << (7 - (x & 0x7))); - } - offset += 4; - } - maskOffset += maskBpl; - } - data.maskData = maskData; - data.maskPad = maskPad; - } - data.alpha = alpha; - if (alpha == -1 && alphaData != null) { - data.alphaData = new byte[alphaData.length]; - System.arraycopy(alphaData, 0, data.alphaData, 0, alphaData.length); - } - return data; -} - -/** - * 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; -} - -void init(int width, int height) { - if (width <= 0 || height <= 0) { - SWT.error (SWT.ERROR_INVALID_ARGUMENT); - } - type = SWT.BITMAP; - Point dpi = getDPI(); - int pixelFormat = OS.PixelFormats_Bgr24(); - int stride = width * 3; - byte[] buffer = new byte[stride * height]; - for (int i = 0; i < buffer.length; i++) { - buffer[i] = (byte)0xFF; - } - handle = OS.BitmapSource_Create(width, height, dpi.x, dpi.y, pixelFormat, 0, buffer, buffer.length, stride); - if (handle == 0) SWT.error(SWT.ERROR_NO_HANDLES); - OS.GCHandle_Free(pixelFormat); - if (OS.Freezable_CanFreeze(handle)) OS.Freezable_Freeze(handle); -} - -void init(ImageData data) { - PaletteData palette = data.palette; - if (!(((data.depth == 1 || data.depth == 2 || data.depth == 4 || data.depth == 8) && !palette.isDirect) || - ((data.depth == 8) || (data.depth == 16 || data.depth == 24 || data.depth == 32) && palette.isDirect))) - SWT.error (SWT.ERROR_UNSUPPORTED_DEPTH); - int width = data.width; - int height = data.height; - int redMask = palette.redMask; - int greenMask = palette.greenMask; - int blueMask = palette.blueMask; - ImageData newData = null; - int pixelFormat = 0; - boolean transparent = false; - if (data.maskData != null) { - transparent= true; - } else { - if (data.transparentPixel != -1) { - transparent = palette.isDirect; - } else { - if (data.alpha != -1) { - transparent = palette.isDirect; - } else { - transparent = data.alphaData != null; - } - } - } - if (transparent) { - pixelFormat = OS.PixelFormats_Bgra32(); - if (!(palette.isDirect && data.depth == 32 && redMask == 0xFF00 && greenMask == 0xFF0000 && blueMask == 0xFF000000)) { - newData = new ImageData(width, height, 32, new PaletteData(0xFF00, 0xFF0000, 0xFF000000)); - } - } else { - switch (data.depth) { - case 1: pixelFormat = OS.PixelFormats_Indexed1(); break; - case 2: pixelFormat = OS.PixelFormats_Indexed2(); break; - case 4: pixelFormat = OS.PixelFormats_Indexed4(); break; - case 8: - if (!palette.isDirect) { - pixelFormat = OS.PixelFormats_Indexed8(); - } else { - pixelFormat = OS.PixelFormats_Bgr32(); - newData = new ImageData(data.width, data.height, 32, new PaletteData(0xFF00, 0xFF0000, 0xFF000000)); - } - break; - case 16: - if (redMask == 0x7C00 && greenMask == 0x3E0 && blueMask == 0x1F) { - pixelFormat = OS.PixelFormats_Bgr555(); - } else if (redMask == 0xF800 && greenMask == 0x7E0 && blueMask == 0x1F) { - pixelFormat = OS.PixelFormats_Bgr565(); - } else { - pixelFormat = OS.PixelFormats_Bgr555(); - newData = new ImageData(data.width, data.height, 16, new PaletteData(0x7C00, 0x3E0, 0x1F)); - } - break; - case 24: - if (redMask == 0xFF && greenMask == 0xFF00 && blueMask == 0xFF0000) { - pixelFormat = OS.PixelFormats_Bgr24(); - } else if (redMask == 0xFF0000 && greenMask == 0xFF00 && blueMask == 0xFF) { - pixelFormat = OS.PixelFormats_Rgb24(); - } else { - pixelFormat = OS.PixelFormats_Bgr24(); - newData = new ImageData(data.width, data.height, 24, new PaletteData(0xFF, 0xFF00, 0xFF0000)); - } - break; - case 32: - if (redMask == 0x3FF && greenMask == 0xFFC00 && blueMask == 0x3FF0000) { - pixelFormat = OS.PixelFormats_Bgr101010(); - } else if (redMask == 0xFF00 && greenMask == 0xFF0000 && blueMask == 0xFF000000) { - pixelFormat = OS.PixelFormats_Bgr32(); - } else { - pixelFormat = OS.PixelFormats_Bgr32(); - newData = new ImageData(data.width, data.height, 32, new PaletteData(0xFF00, 0xFF0000, 0xFF000000)); - } - break; - } - } - if (newData != null) { - PaletteData newPalette = newData.palette; - if (palette.isDirect) { - ImageData.blit(ImageData.BLIT_SRC, - data.data, data.depth, data.bytesPerLine, data.getByteOrder(), 0, 0, width, height, redMask, greenMask, blueMask, - ImageData.ALPHA_OPAQUE, null, 0, 0, 0, - newData.data, newData.depth, newData.bytesPerLine, newData.getByteOrder(), 0, 0, width, height, newPalette.redMask, newPalette.greenMask, newPalette.blueMask, - 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, - data.data, data.depth, data.bytesPerLine, data.getByteOrder(), 0, 0, width, height, srcReds, srcGreens, srcBlues, - ImageData.ALPHA_OPAQUE, null, 0, 0, 0, - newData.data, newData.depth, newData.bytesPerLine, newData.getByteOrder(), 0, 0, width, height, newPalette.redMask, newPalette.greenMask, newPalette.blueMask, - false, false); - } - if (data.transparentPixel != -1) { - newData.transparentPixel = newPalette.getPixel(palette.getRGB(data.transparentPixel)); - } - newData.maskPad = data.maskPad; - newData.maskData = data.maskData; - newData.alpha = data.alpha; - newData.alphaData = data.alphaData; - data = newData; - palette = data.palette; - } - int bitmapPalette = 0; - if (!palette.isDirect) { - if (data.transparentPixel != -1) { - transparentPixel = data.transparentPixel; - } else { - alpha = data.alpha; - } - RGB[] rgbs = palette.colors; - int list = OS.gcnew_ColorList(rgbs.length); - for (int i = 0; i < rgbs.length; i++) { - RGB rgb = rgbs[i]; - byte alpha; - if (data.transparentPixel != -1) { - alpha = (byte)(i == data.transparentPixel ? 0 : 0xFF); - } else { - alpha = (byte)(data.alpha & 0xFF); - } - int color = OS.Color_FromArgb(alpha, (byte)rgb.red, (byte)rgb.green, (byte)rgb.blue); - OS.ColorList_Add(list, color); - OS.GCHandle_Free(color); - } - bitmapPalette = OS.gcnew_BitmapPalette(list); - OS.GCHandle_Free(list); - } - type = SWT.BITMAP; - if (transparent) { - if (data.maskData != null || data.transparentPixel != -1) { - this.type = data.transparentPixel != -1 ? SWT.BITMAP : SWT.ICON; - transparentPixel = data.transparentPixel; - ImageData maskImage = data.getTransparencyMask(); - byte[] maskData = maskImage.data; - int maskBpl = maskImage.bytesPerLine; - int offset = 3, maskOffset = 0; - for (int y = 0; y<height; y++) { - for (int x = 0; x<width; x++) { - data.data[offset] = ((maskData[maskOffset + (x >> 3)]) & (1 << (7 - (x & 0x7)))) != 0 ? (byte)0xff : 0; - offset += 4; - } - maskOffset += maskBpl; - } - } else if (data.alpha != -1) { - alpha = data.alpha; - for (int i = 3, j = 0; i < data.data.length; i+=4, j++) { - data.data[i] = (byte)alpha; - } - } else { - int length = data.alphaData.length; - alphaData = new byte[length]; - System.arraycopy(data.alphaData, 0, alphaData, 0, length); - for (int i = 3, j = 0; i < data.data.length; i+=4, j++) { - data.data[i] = alphaData[j]; - } - } - } - Point dpi = getDPI(); - handle = OS.BitmapSource_Create(width, height, dpi.x, dpi.y, pixelFormat, bitmapPalette, data.data, data.data.length, data.bytesPerLine); - if (OS.Freezable_CanFreeze(handle)) OS.Freezable_Freeze(handle); - OS.GCHandle_Free(pixelFormat); - if (bitmapPalette != 0) OS.GCHandle_Free(bitmapPalette); - if (handle == 0) SWT.error(SWT.ERROR_NO_HANDLES); -} - -/** - * Invokes platform specific functionality to allocate a new GC handle. - * <p> - * <b>IMPORTANT:</b> This method is <em>not</em> part of the public - * API for <code>Image</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 data the platform specific GC data - * @return the platform specific GC handle - */ -public int internal_new_GC (GCData data) { - if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - /* - * Create a new GC that can draw into the image. - * Only supported for bitmaps. - */ - if (type != SWT.BITMAP || memGC != null) { - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } - if (width == -1 || height == -1) { - width = OS.BitmapSource_PixelWidth(handle); - height = OS.BitmapSource_PixelHeight(handle); - } - - int visual = OS.gcnew_DrawingVisual(); - if (visual == 0) SWT.error(SWT.ERROR_NO_HANDLES); - int rect = OS.gcnew_Rect(0, 0, width, height); - int geometry = OS.gcnew_RectangleGeometry(rect); - OS.ContainerVisual_Clip (visual, geometry); - int dc = OS.DrawingVisual_RenderOpen(visual); - if (dc == 0) SWT.error(SWT.ERROR_NO_HANDLES); - OS.DrawingContext_DrawImage(dc, handle, rect); - OS.GCHandle_Free(rect); - OS.GCHandle_Free(geometry); - if (data != null) { - int mask = SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT; - if ((data.style & mask) == 0) { - data.style |= SWT.LEFT_TO_RIGHT; - } - data.device = device; - data.image = this; - data.background = OS.Colors_White; - data.foreground = OS.Colors_Black; - data.font = device.systemFont; - data.visual = visual; - } - return dc; -} - -/** - * Invokes platform specific functionality to dispose a GC handle. - * <p> - * <b>IMPORTANT:</b> This method is <em>not</em> part of the public - * API for <code>Image</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 hDC the platform specific GC handle - * @param data the platform specific GC data - */ -public void internal_dispose_GC (int dc, GCData data) { - OS.DrawingContext_Close(dc); - Point dpi = getDPI(); - int pixelFormat = OS.PixelFormats_Pbgra32(); - int renderHandle = OS.gcnew_RenderTargetBitmap(width, height, dpi.x, dpi.y, pixelFormat); - OS.GCHandle_Free(pixelFormat); - if (renderHandle == 0) SWT.error(SWT.ERROR_NO_HANDLES); - OS.RenderTargetBitmap_Render(renderHandle, data.visual); - OS.GCHandle_Free(data.visual); - OS.GCHandle_Free(dc); - int format = OS.BitmapSource_Format(handle); - int palette = OS.BitmapSource_Palette(handle); - OS.GCHandle_Free(handle); - handle = OS.gcnew_FormatConvertedBitmap(renderHandle, format, palette, 100); - OS.GCHandle_Free(palette); - OS.GCHandle_Free(format); - if (handle == 0) SWT.error(SWT.ERROR_NO_HANDLES); - OS.GCHandle_Free(renderHandle); - if (OS.Freezable_CanFreeze(handle)) OS.Freezable_Freeze(handle); -} - -/** - * Returns <code>true</code> if the image has been disposed, - * and <code>false</code> otherwise. - * <p> - * This method gets the dispose state for the image. - * When an image has been disposed, it is an error to - * invoke any other method using the image. - * - * @return <code>true</code> when the image is disposed and <code>false</code> otherwise - */ -public boolean isDisposed() { - return handle == 0; -} - -/** - * Sets the color to which to map the transparent pixel. - * <p> - * There are certain uses of <code>Images</code> that do not support - * transparency (for example, setting an image into a button or label). - * In these cases, it may be desired to simulate transparency by using - * the background color of the widget to paint the transparent pixels - * of the image. This method specifies the color that will be used in - * these cases. For example: - * <pre> - * Button b = new Button(); - * image.setBackground(b.getBackground()); - * b.setImage(image); - * </pre> - * </p><p> - * The image may be modified by this operation (in effect, the - * transparent regions may be filled with the supplied color). Hence - * this operation is not reversible and it is not legal to call - * this function twice or with a null argument. - * </p><p> - * This method has no effect if the receiver does not have a transparent - * pixel value. - * </p> - * - * @param color the color to use when a transparent pixel is specified - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the color is null</li> - * <li>ERROR_INVALID_ARGUMENT - if the color has been disposed</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void setBackground(Color color) { - if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (color == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - if (transparentPixel == -1) return; - //TODO implement Image.setBackground() -} - -/** - * 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 "Image {*DISPOSED*}"; - return "Image {" + handle + "}"; -} - -/** - * Invokes platform specific functionality to allocate a new image. - * <p> - * <b>IMPORTANT:</b> This method is <em>not</em> part of the public - * API for <code>Image</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 type the type of the image (<code>SWT.BITMAP</code> or <code>SWT.ICON</code>) - * @param handle the OS handle for the image - * @return a new image object containing the specified device, type and handle - */ -public static Image wpf_new(Device device, int type, int handle) { - Image image = new Image(device); - image.type = type; - image.handle = handle; - return image; -} - -} |