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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/graphics/Image.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/graphics/Image.java | 2086 |
1 files changed, 0 insertions, 2086 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/graphics/Image.java b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/graphics/Image.java deleted file mode 100755 index a4d5b3386a..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/graphics/Image.java +++ /dev/null @@ -1,2086 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2006 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.gdip.*; -import org.eclipse.swt.internal.win32.*; -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 - */ - -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 () { -} - -/** - * 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) { - if (device == null) device = Device.getDevice(); - if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - init(device, width, height); - if (device.tracking) device.new_Object(this); -} - -/** - * 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>IMAGE_COPY</b></dt> - * <dd>the result is an identical copy of srcImage</dd> - * <dt><b>IMAGE_DISABLE</b></dt> - * <dd>the result is a copy of srcImage which has a <em>disabled</em> look</dd> - * <dt><b>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) { - if (device == null) device = Device.getDevice(); - if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - this.device = 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: { - this.type = srcImage.type; - switch (type) { - case SWT.BITMAP: - /* Get the HDC for the device */ - int hDC = device.internal_new_GC(null); - - /* Copy the bitmap */ - int hdcSource = OS.CreateCompatibleDC(hDC); - int hdcDest = OS.CreateCompatibleDC(hDC); - int hOldSrc = OS.SelectObject(hdcSource, srcImage.handle); - BITMAP bm = new BITMAP(); - OS.GetObject(srcImage.handle, BITMAP.sizeof, bm); - handle = OS.CreateCompatibleBitmap(hdcSource, rect.width, bm.bmBits != 0 ? -rect.height : rect.height); - if (handle == 0) SWT.error(SWT.ERROR_NO_HANDLES); - int hOldDest = OS.SelectObject(hdcDest, handle); - OS.BitBlt(hdcDest, 0, 0, rect.width, rect.height, hdcSource, 0, 0, OS.SRCCOPY); - OS.SelectObject(hdcSource, hOldSrc); - OS.SelectObject(hdcDest, hOldDest); - OS.DeleteDC(hdcSource); - OS.DeleteDC(hdcDest); - - /* Release the HDC for the device */ - device.internal_dispose_GC(hDC, null); - - 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.ICON: - if (OS.IsWinCE) { - init(device, srcImage.data); - } else { - handle = OS.CopyImage(srcImage.handle, OS.IMAGE_ICON, rect.width, rect.height, 0); - if (handle == 0) SWT.error(SWT.ERROR_NO_HANDLES); - } - break; - default: - SWT.error(SWT.ERROR_INVALID_IMAGE); - } - if (device.tracking) device.new_Object(this); - return; - } - 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 (device, newData); - if (device.tracking) device.new_Object(this); - return; - } - 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 (device, newData); - if (device.tracking) device.new_Object(this); - return; - } - default: - SWT.error(SWT.ERROR_INVALID_ARGUMENT); - } -} - -/** - * 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) { - if (device == null) device = Device.getDevice(); - if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (bounds == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - init(device, bounds.width, bounds.height); - if (device.tracking) device.new_Object(this); -} - -/** - * 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) { - if (device == null) device = Device.getDevice(); - if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - init(device, data); - if (device.tracking) device.new_Object(this); -} - -/** - * 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) { - if (device == null) device = Device.getDevice(); - if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - 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); - init(device, this, source, mask); - if (device.tracking) device.new_Object(this); -} - -/** - * 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) { - if (device == null) device = Device.getDevice(); - if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - init(device, new ImageData(stream)); - if (device.tracking) device.new_Object(this); -} - -/** - * 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) { - if (device == null) device = Device.getDevice(); - if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (filename == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - this.device = device; - try { - device.checkGDIP(); - int length = filename.length(); - char[] chars = new char[length+1]; - filename.getChars(0, length, chars, 0); - int bitmap = Gdip.Bitmap_new(chars, false); - int status = Gdip.Image_GetLastStatus(bitmap); - if (bitmap != 0 && status == 0) { - int transparentColor = -1; - int error = SWT.ERROR_NO_HANDLES; - int width = Gdip.Image_GetWidth(bitmap); - int height = Gdip.Image_GetHeight(bitmap); - if (filename.toLowerCase().endsWith(".ico")) { - this.type = SWT.ICON; - int[] hicon = new int[1]; - Gdip.Bitmap_GetHICON(bitmap, hicon); - this.handle = hicon[0]; - } else { - this.type = SWT.BITMAP; - int pixelFormat = Gdip.Image_GetPixelFormat(bitmap); - switch (pixelFormat) { - case Gdip.PixelFormat32bppARGB: - int lockedBitmapData = Gdip.BitmapData_new(); - if (lockedBitmapData == 0) break; - Gdip.Bitmap_LockBits(bitmap, 0, 0, pixelFormat, lockedBitmapData); - BitmapData bitmapData = new BitmapData(); - Gdip.MoveMemory(bitmapData, lockedBitmapData, BitmapData.sizeof); - int stride = bitmapData.Stride; - int pixels = bitmapData.Scan0; - byte[] line = new byte[stride]; - alphaData = new byte[width * height]; - for (int y = 0; y < height; y++) { - OS.MoveMemory(line, pixels + (y * stride), stride); - for (int x = 0; x < width; x++) { - alphaData[y*width+x] = line[x*4 + 3]; - } - } - Gdip.Bitmap_UnlockBits(bitmap, lockedBitmapData); - Gdip.BitmapData_delete(lockedBitmapData); - this.handle = createDIB(width, height, 32); - break; - case Gdip.PixelFormat1bppIndexed: - case Gdip.PixelFormat4bppIndexed: - case Gdip.PixelFormat8bppIndexed: - int paletteSize = Gdip.Image_GetPaletteSize(bitmap); - int hHeap = OS.GetProcessHeap(); - int palette = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, paletteSize); - if (palette == 0) break; - Gdip.Image_GetPalette(bitmap, palette, paletteSize); - ColorPalette colorPalette = new ColorPalette(); - Gdip.MoveMemory(colorPalette, palette, ColorPalette.sizeof); - int[] entries = new int[colorPalette.Count]; - OS.MoveMemory(entries, palette + 8, entries.length * 4); - OS.HeapFree(hHeap, 0, palette); - BITMAPINFOHEADER bmiHeader = new BITMAPINFOHEADER(); - bmiHeader.biSize = BITMAPINFOHEADER.sizeof; - bmiHeader.biWidth = width; - bmiHeader.biHeight = -height; - bmiHeader.biPlanes = 1; - bmiHeader.biBitCount = (short)8; - bmiHeader.biCompression = OS.BI_RGB; - byte[] bmi = new byte[BITMAPINFOHEADER.sizeof + colorPalette.Count * 4]; - OS.MoveMemory(bmi, bmiHeader, BITMAPINFOHEADER.sizeof); - int offset = BITMAPINFOHEADER.sizeof; - for (int i = 0; i < entries.length; i++) { - if (((entries[i] >> 24) & 0xFF) == 0 && (colorPalette.Flags & Gdip.PaletteFlagsHasAlpha) != 0) { - transparentPixel = i; - transparentColor = entries[i] & 0xFFFFFF; - } - bmi[offset] = (byte)((entries[i] & 0xFF) >> 0); - bmi[offset + 1] = (byte)((entries[i] & 0xFF00) >> 8); - bmi[offset + 2] = (byte)((entries[i] & 0xFF0000) >> 16); - bmi[offset + 3] = 0; - offset += 4; - } - int[] pBits = new int[1]; - this.handle = OS.CreateDIBSection(0, bmi, OS.DIB_RGB_COLORS, pBits, 0, 0); - break; - case Gdip.PixelFormat16bppGrayScale: - case Gdip.PixelFormat16bppRGB555: - case Gdip.PixelFormat16bppRGB565: - this.handle = createDIB(width, height, 16); - break; - case Gdip.PixelFormat24bppRGB: - this.handle = createDIB(width, height, 24); - break; - default: - this.handle = createDIB(width, height, 32); - } - if (handle != 0) { - int hDC = device.internal_new_GC(null); - int srcHDC = OS.CreateCompatibleDC(hDC); - int oldSrcBitmap = OS.SelectObject(srcHDC, handle); - int graphics = Gdip.Graphics_new(srcHDC); - if (graphics != 0) { - if (transparentColor != -1) { - int color = Gdip.Color_new(transparentColor | 0xFF000000); - if (color != 0) { - int brush = Gdip.SolidBrush_new(color); - if (brush != 0) { - Gdip.Graphics_FillRectangle(graphics, brush, 0, 0, width, height); - Gdip.SolidBrush_delete(brush); - } - Gdip.Color_delete(color); - } - } - Rect rect = new Rect(); - rect.Width = width; - rect.Height = height; - status = Gdip.Graphics_DrawImage(graphics, bitmap, rect, 0, 0, width, height, Gdip.UnitPixel, 0, 0, 0); - if (status != 0) { - error = SWT.ERROR_INVALID_IMAGE; - OS.DeleteObject(handle); - handle = 0; - } - Gdip.Graphics_delete(graphics); - } - OS.SelectObject(srcHDC, oldSrcBitmap); - OS.DeleteDC(srcHDC); - device.internal_dispose_GC(hDC, null); - } - } - Gdip.Bitmap_delete(bitmap); - if (handle == 0) SWT.error(error); - return; - } - } catch (SWTException e) {} - init(device, new ImageData(filename)); - if(device.tracking) device.new_Object(this); -} - -/** - * Create a DIB from a DDB without using GetDIBits. Note that - * the DDB should not be selected into a HDC. - */ -int createDIBFromDDB(int hDC, int hBitmap, int width, int height) { - - /* Determine the DDB depth */ - int bits = OS.GetDeviceCaps (hDC, OS.BITSPIXEL); - int planes = OS.GetDeviceCaps (hDC, OS.PLANES); - int depth = bits * planes; - - /* Determine the DIB palette */ - boolean isDirect = depth > 8; - RGB[] rgbs = null; - if (!isDirect) { - int numColors = 1 << depth; - byte[] logPalette = new byte[4 * numColors]; - OS.GetPaletteEntries(device.hPalette, 0, numColors, logPalette); - rgbs = new RGB[numColors]; - for (int i = 0; i < numColors; i++) { - rgbs[i] = new RGB(logPalette[i] & 0xFF, logPalette[i + 1] & 0xFF, logPalette[i + 2] & 0xFF); - } - } - - boolean useBitfields = OS.IsWinCE && (depth == 16 || depth == 32); - BITMAPINFOHEADER bmiHeader = new BITMAPINFOHEADER(); - bmiHeader.biSize = BITMAPINFOHEADER.sizeof; - bmiHeader.biWidth = width; - bmiHeader.biHeight = -height; - bmiHeader.biPlanes = 1; - bmiHeader.biBitCount = (short)depth; - if (useBitfields) bmiHeader.biCompression = OS.BI_BITFIELDS; - else bmiHeader.biCompression = OS.BI_RGB; - byte[] bmi; - if (isDirect) bmi = new byte[BITMAPINFOHEADER.sizeof + (useBitfields ? 12 : 0)]; - else bmi = new byte[BITMAPINFOHEADER.sizeof + rgbs.length * 4]; - OS.MoveMemory(bmi, bmiHeader, BITMAPINFOHEADER.sizeof); - - /* Set the rgb colors into the bitmap info */ - int offset = BITMAPINFOHEADER.sizeof; - if (isDirect) { - if (useBitfields) { - int redMask = 0; - int greenMask = 0; - int blueMask = 0; - switch (depth) { - case 16: - redMask = 0x7C00; - greenMask = 0x3E0; - blueMask = 0x1F; - /* little endian */ - bmi[offset] = (byte)((redMask & 0xFF) >> 0); - bmi[offset + 1] = (byte)((redMask & 0xFF00) >> 8); - bmi[offset + 2] = (byte)((redMask & 0xFF0000) >> 16); - bmi[offset + 3] = (byte)((redMask & 0xFF000000) >> 24); - bmi[offset + 4] = (byte)((greenMask & 0xFF) >> 0); - bmi[offset + 5] = (byte)((greenMask & 0xFF00) >> 8); - bmi[offset + 6] = (byte)((greenMask & 0xFF0000) >> 16); - bmi[offset + 7] = (byte)((greenMask & 0xFF000000) >> 24); - bmi[offset + 8] = (byte)((blueMask & 0xFF) >> 0); - bmi[offset + 9] = (byte)((blueMask & 0xFF00) >> 8); - bmi[offset + 10] = (byte)((blueMask & 0xFF0000) >> 16); - bmi[offset + 11] = (byte)((blueMask & 0xFF000000) >> 24); - break; - case 32: - redMask = 0xFF00; - greenMask = 0xFF0000; - blueMask = 0xFF000000; - /* big endian */ - bmi[offset] = (byte)((redMask & 0xFF000000) >> 24); - bmi[offset + 1] = (byte)((redMask & 0xFF0000) >> 16); - bmi[offset + 2] = (byte)((redMask & 0xFF00) >> 8); - bmi[offset + 3] = (byte)((redMask & 0xFF) >> 0); - bmi[offset + 4] = (byte)((greenMask & 0xFF000000) >> 24); - bmi[offset + 5] = (byte)((greenMask & 0xFF0000) >> 16); - bmi[offset + 6] = (byte)((greenMask & 0xFF00) >> 8); - bmi[offset + 7] = (byte)((greenMask & 0xFF) >> 0); - bmi[offset + 8] = (byte)((blueMask & 0xFF000000) >> 24); - bmi[offset + 9] = (byte)((blueMask & 0xFF0000) >> 16); - bmi[offset + 10] = (byte)((blueMask & 0xFF00) >> 8); - bmi[offset + 11] = (byte)((blueMask & 0xFF) >> 0); - break; - default: - SWT.error(SWT.ERROR_UNSUPPORTED_DEPTH); - } - } - } else { - for (int j = 0; j < rgbs.length; j++) { - bmi[offset] = (byte)rgbs[j].blue; - bmi[offset + 1] = (byte)rgbs[j].green; - bmi[offset + 2] = (byte)rgbs[j].red; - bmi[offset + 3] = 0; - offset += 4; - } - } - int[] pBits = new int[1]; - int hDib = OS.CreateDIBSection(0, bmi, OS.DIB_RGB_COLORS, pBits, 0, 0); - if (hDib == 0) SWT.error(SWT.ERROR_NO_HANDLES); - - /* Bitblt DDB into DIB */ - int hdcSource = OS.CreateCompatibleDC(hDC); - int hdcDest = OS.CreateCompatibleDC(hDC); - int hOldSrc = OS.SelectObject(hdcSource, hBitmap); - int hOldDest = OS.SelectObject(hdcDest, hDib); - OS.BitBlt(hdcDest, 0, 0, width, height, hdcSource, 0, 0, OS.SRCCOPY); - OS.SelectObject(hdcSource, hOldSrc); - OS.SelectObject(hdcDest, hOldDest); - OS.DeleteDC(hdcSource); - OS.DeleteDC(hdcDest); - - return hDib; -} - -int[] createGdipImage() { - switch (type) { - case SWT.BITMAP: { - if (alpha != -1 || alphaData != null || transparentPixel != -1) { - BITMAP bm = new BITMAP(); - OS.GetObject(handle, BITMAP.sizeof, bm); - int imgWidth = bm.bmWidth; - int imgHeight = bm.bmHeight; - int hDC = device.internal_new_GC(null); - int srcHdc = OS.CreateCompatibleDC(hDC); - int oldSrcBitmap = OS.SelectObject(srcHdc, handle); - int memHdc = OS.CreateCompatibleDC(hDC); - int memDib = createDIB(imgWidth, imgHeight, 32); - if (memDib == 0) SWT.error(SWT.ERROR_NO_HANDLES); - int oldMemBitmap = OS.SelectObject(memHdc, memDib); - BITMAP dibBM = new BITMAP(); - OS.GetObject(memDib, BITMAP.sizeof, dibBM); - int sizeInBytes = dibBM.bmWidthBytes * dibBM.bmHeight; - OS.BitBlt(memHdc, 0, 0, imgWidth, imgHeight, srcHdc, 0, 0, OS.SRCCOPY); - byte red = 0, green = 0, blue = 0; - if (transparentPixel != -1) { - if (bm.bmBitsPixel <= 8) { - byte[] color = new byte[4]; - OS.GetDIBColorTable(srcHdc, transparentPixel, 1, color); - blue = color[0]; - green = color[1]; - red = color[2]; - } else { - switch (bm.bmBitsPixel) { - case 16: - blue = (byte)((transparentPixel & 0x1F) << 3); - green = (byte)((transparentPixel & 0x3E0) >> 2); - red = (byte)((transparentPixel & 0x7C00) >> 7); - break; - case 24: - blue = (byte)((transparentPixel & 0xFF0000) >> 16); - green = (byte)((transparentPixel & 0xFF00) >> 8); - red = (byte)(transparentPixel & 0xFF); - break; - case 32: - blue = (byte)((transparentPixel & 0xFF000000) >>> 24); - green = (byte)((transparentPixel & 0xFF0000) >> 16); - red = (byte)((transparentPixel & 0xFF00) >> 8); - break; - } - } - } - OS.SelectObject(srcHdc, oldSrcBitmap); - OS.SelectObject(memHdc, oldMemBitmap); - OS.DeleteObject(srcHdc); - OS.DeleteObject(memHdc); - byte[] srcData = new byte[sizeInBytes]; - OS.MoveMemory(srcData, dibBM.bmBits, sizeInBytes); - OS.DeleteObject(memDib); - device.internal_dispose_GC(hDC, null); - if (alpha != -1) { - for (int y = 0, dp = 0; y < imgHeight; ++y) { - for (int x = 0; x < imgWidth; ++x) { - srcData[dp + 3] = (byte)alpha; - dp += 4; - } - } - } else if (alphaData != null) { - for (int y = 0, dp = 0, ap = 0; y < imgHeight; ++y) { - for (int x = 0; x < imgWidth; ++x) { - srcData[dp + 3] = alphaData[ap++]; - dp += 4; - } - } - } else if (transparentPixel != -1) { - for (int y = 0, dp = 0; y < imgHeight; ++y) { - for (int x = 0; x < imgWidth; ++x) { - if (srcData[dp] == blue && srcData[dp + 1] == green && srcData[dp + 2] == red) { - srcData[dp + 3] = (byte)0; - } else { - srcData[dp + 3] = (byte)0xFF; - } - dp += 4; - } - } - } - int hHeap = OS.GetProcessHeap(); - int pixels = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, srcData.length); - OS.MoveMemory(pixels, srcData, sizeInBytes); - return new int[]{Gdip.Bitmap_new(imgWidth, imgHeight, dibBM.bmWidthBytes, Gdip.PixelFormat32bppARGB, pixels), pixels}; - } - return new int[]{Gdip.Bitmap_new(handle, 0), 0}; - } - case SWT.ICON: { - /* - * Bug in GDI+. Creating a new GDI+ Bitmap from a HICON segment faults - * when the icon width is bigger than the icon height. The fix is to - * detect this and create a PixelFormat32bppARGB image instead. - */ - ICONINFO iconInfo = new ICONINFO(); - if (OS.IsWinCE) { - GetIconInfo(this, iconInfo); - } else { - OS.GetIconInfo(handle, iconInfo); - } - int hBitmap = iconInfo.hbmColor; - if (hBitmap == 0) hBitmap = iconInfo.hbmMask; - BITMAP bm = new BITMAP(); - OS.GetObject(hBitmap, BITMAP.sizeof, bm); - int imgWidth = bm.bmWidth; - int imgHeight = hBitmap == iconInfo.hbmMask ? bm.bmHeight / 2 : bm.bmHeight; - int img = 0, pixels = 0; - if (imgWidth > imgHeight) { - int hDC = device.internal_new_GC(null); - int srcHdc = OS.CreateCompatibleDC(hDC); - int oldSrcBitmap = OS.SelectObject(srcHdc, hBitmap); - int memHdc = OS.CreateCompatibleDC(hDC); - int memDib = createDIB(imgWidth, imgHeight, 32); - if (memDib == 0) SWT.error(SWT.ERROR_NO_HANDLES); - int oldMemBitmap = OS.SelectObject(memHdc, memDib); - BITMAP dibBM = new BITMAP(); - OS.GetObject(memDib, BITMAP.sizeof, dibBM); - OS.BitBlt(memHdc, 0, 0, imgWidth, imgHeight, srcHdc, 0, hBitmap == iconInfo.hbmMask ? imgHeight : 0, OS.SRCCOPY); - OS.SelectObject(memHdc, oldMemBitmap); - OS.DeleteObject(memHdc); - byte[] srcData = new byte[dibBM.bmWidthBytes * dibBM.bmHeight]; - OS.MoveMemory(srcData, dibBM.bmBits, srcData.length); - OS.DeleteObject(memDib); - OS.SelectObject(srcHdc, iconInfo.hbmMask); - for (int y = 0, dp = 0; y < imgHeight; ++y) { - for (int x = 0; x < imgWidth; ++x) { - if (OS.GetPixel(srcHdc, x, y) != 0) { - srcData[dp + 3] = (byte)0; - } else { - srcData[dp + 3] = (byte)0xFF; - } - dp += 4; - } - } - OS.SelectObject(srcHdc, oldSrcBitmap); - OS.DeleteObject(srcHdc); - device.internal_dispose_GC(hDC, null); - int hHeap = OS.GetProcessHeap(); - pixels = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, srcData.length); - OS.MoveMemory(pixels, srcData, srcData.length); - img = Gdip.Bitmap_new(imgWidth, imgHeight, dibBM.bmWidthBytes, Gdip.PixelFormat32bppARGB, pixels); - } else { - img = Gdip.Bitmap_new(handle); - } - if (iconInfo.hbmColor != 0) OS.DeleteObject(iconInfo.hbmColor); - if (iconInfo.hbmMask != 0) OS.DeleteObject(iconInfo.hbmMask); - return new int[]{img, pixels}; - } - default: SWT.error(SWT.ERROR_INVALID_IMAGE); - } - return null; -} - -/** - * Disposes of the operating system resources associated with - * the image. Applications must dispose of all images which - * they allocate. - */ -public void dispose () { - if (handle == 0) return; - if (device.isDisposed()) return; - if (memGC != null) memGC.dispose(); - if (type == SWT.ICON) { - if (OS.IsWinCE) data = null; - OS.DestroyIcon (handle); - } else { - OS.DeleteObject (handle); - } - handle = 0; - memGC = null; - if (device.tracking) device.dispose_Object(this); - device = 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; - - /* Get the HDC for the device */ - int hDC = device.internal_new_GC(null); - - /* Compute the background color */ - BITMAP bm = new BITMAP(); - OS.GetObject(handle, BITMAP.sizeof, bm); - int hdcMem = OS.CreateCompatibleDC(hDC); - int hOldObject = OS.SelectObject(hdcMem, handle); - int red = 0, green = 0, blue = 0; - if (bm.bmBitsPixel <= 8) { - if (OS.IsWinCE) { - byte[] pBits = new byte[1]; - OS.MoveMemory(pBits, bm.bmBits, 1); - byte oldValue = pBits[0]; - int mask = (0xFF << (8 - bm.bmBitsPixel)) & 0x00FF; - pBits[0] = (byte)((transparentPixel << (8 - bm.bmBitsPixel)) | (pBits[0] & ~mask)); - OS.MoveMemory(bm.bmBits, pBits, 1); - int color = OS.GetPixel(hdcMem, 0, 0); - pBits[0] = oldValue; - OS.MoveMemory(bm.bmBits, pBits, 1); - blue = (color & 0xFF0000) >> 16; - green = (color & 0xFF00) >> 8; - red = color & 0xFF; - } else { - byte[] color = new byte[4]; - OS.GetDIBColorTable(hdcMem, transparentPixel, 1, color); - blue = color[0] & 0xFF; - green = color[1] & 0xFF; - red = color[2] & 0xFF; - } - } else { - switch (bm.bmBitsPixel) { - case 16: - blue = (transparentPixel & 0x1F) << 3; - green = (transparentPixel & 0x3E0) >> 2; - red = (transparentPixel & 0x7C00) >> 7; - break; - case 24: - blue = (transparentPixel & 0xFF0000) >> 16; - green = (transparentPixel & 0xFF00) >> 8; - red = transparentPixel & 0xFF; - break; - case 32: - blue = (transparentPixel & 0xFF000000) >>> 24; - green = (transparentPixel & 0xFF0000) >> 16; - red = (transparentPixel & 0xFF00) >> 8; - break; - default: - return null; - } - } - OS.SelectObject(hdcMem, hOldObject); - OS.DeleteDC(hdcMem); - - /* Release the HDC for the device */ - device.internal_dispose_GC(hDC, null); - return Color.win32_new(device, 0x02000000 | (blue << 16) | (green << 8) | red); -} - -/** - * 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) { - return new Rectangle(0, 0, width, height); - } - switch (type) { - case SWT.BITMAP: - BITMAP bm = new BITMAP(); - OS.GetObject(handle, BITMAP.sizeof, bm); - return new Rectangle(0, 0, width = bm.bmWidth, height = bm.bmHeight); - case SWT.ICON: - if (OS.IsWinCE) { - return new Rectangle(0, 0, width = data.width, height = data.height); - } else { - ICONINFO info = new ICONINFO(); - OS.GetIconInfo(handle, info); - int hBitmap = info.hbmColor; - if (hBitmap == 0) hBitmap = info.hbmMask; - bm = new BITMAP(); - OS.GetObject(hBitmap, BITMAP.sizeof, bm); - if (hBitmap == info.hbmMask) bm.bmHeight /= 2; - if (info.hbmColor != 0) OS.DeleteObject(info.hbmColor); - if (info.hbmMask != 0) OS.DeleteObject(info.hbmMask); - return new Rectangle(0, 0, width = bm.bmWidth, height = bm.bmHeight); - } - default: - SWT.error(SWT.ERROR_INVALID_IMAGE); - return null; - } -} - -/** - * 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); - BITMAP bm; - int depth, width, height; - switch (type) { - case SWT.ICON: { - if (OS.IsWinCE) return data; - ICONINFO info = new ICONINFO(); - if (OS.IsWinCE) SWT.error(SWT.ERROR_NOT_IMPLEMENTED); - OS.GetIconInfo(handle, info); - /* Get the basic BITMAP information */ - int hBitmap = info.hbmColor; - if (hBitmap == 0) hBitmap = info.hbmMask; - bm = new BITMAP(); - OS.GetObject(hBitmap, BITMAP.sizeof, bm); - depth = bm.bmPlanes * bm.bmBitsPixel; - width = bm.bmWidth; - if (hBitmap == info.hbmMask) bm.bmHeight /= 2; - height = bm.bmHeight; - int numColors = 0; - if (depth <= 8) numColors = 1 << depth; - /* Create the BITMAPINFO */ - BITMAPINFOHEADER bmiHeader = new BITMAPINFOHEADER(); - bmiHeader.biSize = BITMAPINFOHEADER.sizeof; - bmiHeader.biWidth = width; - bmiHeader.biHeight = -height; - bmiHeader.biPlanes = 1; - bmiHeader.biBitCount = (short)depth; - bmiHeader.biCompression = OS.BI_RGB; - byte[] bmi = new byte[BITMAPINFOHEADER.sizeof + numColors * 4]; - OS.MoveMemory(bmi, bmiHeader, BITMAPINFOHEADER.sizeof); - - /* Get the HDC for the device */ - int hDC = device.internal_new_GC(null); - - /* Create the DC and select the bitmap */ - int hBitmapDC = OS.CreateCompatibleDC(hDC); - int hOldBitmap = OS.SelectObject(hBitmapDC, hBitmap); - /* Select the palette if necessary */ - int oldPalette = 0; - if (depth <= 8) { - int hPalette = device.hPalette; - if (hPalette != 0) { - oldPalette = OS.SelectPalette(hBitmapDC, hPalette, false); - OS.RealizePalette(hBitmapDC); - } - } - /* Find the size of the image and allocate data */ - int imageSize; - /* Call with null lpBits to get the image size */ - if (OS.IsWinCE) SWT.error(SWT.ERROR_NOT_IMPLEMENTED); - OS.GetDIBits(hBitmapDC, hBitmap, 0, height, 0, bmi, OS.DIB_RGB_COLORS); - OS.MoveMemory(bmiHeader, bmi, BITMAPINFOHEADER.sizeof); - imageSize = bmiHeader.biSizeImage; - byte[] data = new byte[imageSize]; - /* Get the bitmap data */ - int hHeap = OS.GetProcessHeap(); - int lpvBits = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, imageSize); - if (OS.IsWinCE) SWT.error(SWT.ERROR_NOT_IMPLEMENTED); - OS.GetDIBits(hBitmapDC, hBitmap, 0, height, lpvBits, bmi, OS.DIB_RGB_COLORS); - OS.MoveMemory(data, lpvBits, imageSize); - /* Calculate the palette */ - PaletteData palette = null; - if (depth <= 8) { - RGB[] rgbs = new RGB[numColors]; - int srcIndex = 40; - for (int i = 0; i < numColors; i++) { - rgbs[i] = new RGB(bmi[srcIndex + 2] & 0xFF, bmi[srcIndex + 1] & 0xFF, bmi[srcIndex] & 0xFF); - srcIndex += 4; - } - palette = new PaletteData(rgbs); - } else if (depth == 16) { - palette = new PaletteData(0x7C00, 0x3E0, 0x1F); - } else if (depth == 24) { - palette = new PaletteData(0xFF, 0xFF00, 0xFF0000); - } else if (depth == 32) { - palette = new PaletteData(0xFF00, 0xFF0000, 0xFF000000); - } else { - SWT.error(SWT.ERROR_UNSUPPORTED_DEPTH); - } - - /* Do the mask */ - byte [] maskData = null; - if (info.hbmColor == 0) { - /* Do the bottom half of the mask */ - maskData = new byte[imageSize]; - if (OS.IsWinCE) SWT.error(SWT.ERROR_NOT_IMPLEMENTED); - OS.GetDIBits(hBitmapDC, hBitmap, height, height, lpvBits, bmi, OS.DIB_RGB_COLORS); - OS.MoveMemory(maskData, lpvBits, imageSize); - } else { - /* Do the entire mask */ - /* Create the BITMAPINFO */ - bmiHeader = new BITMAPINFOHEADER(); - bmiHeader.biSize = BITMAPINFOHEADER.sizeof; - bmiHeader.biWidth = width; - bmiHeader.biHeight = -height; - bmiHeader.biPlanes = 1; - bmiHeader.biBitCount = 1; - bmiHeader.biCompression = OS.BI_RGB; - bmi = new byte[BITMAPINFOHEADER.sizeof + 8]; - OS.MoveMemory(bmi, bmiHeader, BITMAPINFOHEADER.sizeof); - - /* First color black, second color white */ - int offset = BITMAPINFOHEADER.sizeof; - bmi[offset + 4] = bmi[offset + 5] = bmi[offset + 6] = (byte)0xFF; - bmi[offset + 7] = 0; - OS.SelectObject(hBitmapDC, info.hbmMask); - /* Call with null lpBits to get the image size */ - if (OS.IsWinCE) SWT.error(SWT.ERROR_NOT_IMPLEMENTED); - OS.GetDIBits(hBitmapDC, info.hbmMask, 0, height, 0, bmi, OS.DIB_RGB_COLORS); - OS.MoveMemory(bmiHeader, bmi, BITMAPINFOHEADER.sizeof); - imageSize = bmiHeader.biSizeImage; - maskData = new byte[imageSize]; - int lpvMaskBits = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, imageSize); - if (OS.IsWinCE) SWT.error(SWT.ERROR_NOT_IMPLEMENTED); - OS.GetDIBits(hBitmapDC, info.hbmMask, 0, height, lpvMaskBits, bmi, OS.DIB_RGB_COLORS); - OS.MoveMemory(maskData, lpvMaskBits, imageSize); - OS.HeapFree(hHeap, 0, lpvMaskBits); - /* Loop to invert the mask */ - for (int i = 0; i < maskData.length; i++) { - maskData[i] ^= -1; - } - /* Make sure mask scanlinePad is 2 */ - int maskPad; - int bpl = imageSize / height; - for (maskPad = 1; maskPad < 128; maskPad++) { - int calcBpl = (((width + 7) / 8) + (maskPad - 1)) / maskPad * maskPad; - if (calcBpl == bpl) break; - } - maskData = ImageData.convertPad(maskData, width, height, 1, maskPad, 2); - } - /* Clean up */ - OS.HeapFree(hHeap, 0, lpvBits); - OS.SelectObject(hBitmapDC, hOldBitmap); - if (oldPalette != 0) { - OS.SelectPalette(hBitmapDC, oldPalette, false); - OS.RealizePalette(hBitmapDC); - } - OS.DeleteDC(hBitmapDC); - - /* Release the HDC for the device */ - device.internal_dispose_GC(hDC, null); - - if (info.hbmColor != 0) OS.DeleteObject(info.hbmColor); - if (info.hbmMask != 0) OS.DeleteObject(info.hbmMask); - /* Construct and return the ImageData */ - ImageData imageData = new ImageData(width, height, depth, palette, 4, data); - imageData.maskData = maskData; - imageData.maskPad = 2; - return imageData; - } - case SWT.BITMAP: { - /* Get the basic BITMAP information */ - bm = new BITMAP(); - OS.GetObject(handle, BITMAP.sizeof, bm); - depth = bm.bmPlanes * bm.bmBitsPixel; - width = bm.bmWidth; - height = bm.bmHeight; - /* Find out whether this is a DIB or a DDB. */ - boolean isDib = (bm.bmBits != 0); - /* Get the HDC for the device */ - int hDC = device.internal_new_GC(null); - - /* - * Feature in WinCE. GetDIBits is not available in WinCE. The - * workaround is to create a temporary DIB from the DDB and use - * the bmBits field of DIBSECTION to retrieve the image data. - */ - int handle = this.handle; - if (OS.IsWinCE) { - if (!isDib) { - boolean mustRestore = false; - if (memGC != null && !memGC.isDisposed()) { - memGC.flush (); - mustRestore = true; - GCData data = memGC.data; - if (data.hNullBitmap != 0) { - OS.SelectObject(memGC.handle, data.hNullBitmap); - data.hNullBitmap = 0; - } - } - handle = createDIBFromDDB(hDC, this.handle, width, height); - if (mustRestore) { - int hOldBitmap = OS.SelectObject(memGC.handle, this.handle); - memGC.data.hNullBitmap = hOldBitmap; - } - isDib = true; - } - } - DIBSECTION dib = null; - if (isDib) { - dib = new DIBSECTION(); - OS.GetObject(handle, DIBSECTION.sizeof, dib); - } - /* Calculate number of colors */ - int numColors = 0; - if (depth <= 8) { - if (isDib) { - numColors = dib.biClrUsed; - } else { - numColors = 1 << depth; - } - } - /* Create the BITMAPINFO */ - byte[] bmi = null; - BITMAPINFOHEADER bmiHeader = null; - if (!isDib) { - bmiHeader = new BITMAPINFOHEADER(); - bmiHeader.biSize = BITMAPINFOHEADER.sizeof; - bmiHeader.biWidth = width; - bmiHeader.biHeight = -height; - bmiHeader.biPlanes = 1; - bmiHeader.biBitCount = (short)depth; - bmiHeader.biCompression = OS.BI_RGB; - bmi = new byte[BITMAPINFOHEADER.sizeof + numColors * 4]; - OS.MoveMemory(bmi, bmiHeader, BITMAPINFOHEADER.sizeof); - } - - /* Create the DC and select the bitmap */ - int hBitmapDC = OS.CreateCompatibleDC(hDC); - int hOldBitmap = OS.SelectObject(hBitmapDC, handle); - /* Select the palette if necessary */ - int oldPalette = 0; - if (!isDib && depth <= 8) { - int hPalette = device.hPalette; - if (hPalette != 0) { - oldPalette = OS.SelectPalette(hBitmapDC, hPalette, false); - OS.RealizePalette(hBitmapDC); - } - } - /* Find the size of the image and allocate data */ - int imageSize; - if (isDib) { - imageSize = dib.biSizeImage; - } else { - /* Call with null lpBits to get the image size */ - if (OS.IsWinCE) SWT.error(SWT.ERROR_NOT_IMPLEMENTED); - OS.GetDIBits(hBitmapDC, handle, 0, height, 0, bmi, OS.DIB_RGB_COLORS); - OS.MoveMemory(bmiHeader, bmi, BITMAPINFOHEADER.sizeof); - imageSize = bmiHeader.biSizeImage; - } - byte[] data = new byte[imageSize]; - /* Get the bitmap data */ - if (isDib) { - if (OS.IsWinCE && this.handle != handle) { - /* get image data from the temporary DIB */ - OS.MoveMemory(data, dib.bmBits, imageSize); - } else { - OS.MoveMemory(data, bm.bmBits, imageSize); - } - } else { - int hHeap = OS.GetProcessHeap(); - int lpvBits = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, imageSize); - if (OS.IsWinCE) SWT.error(SWT.ERROR_NOT_IMPLEMENTED); - OS.GetDIBits(hBitmapDC, handle, 0, height, lpvBits, bmi, OS.DIB_RGB_COLORS); - OS.MoveMemory(data, lpvBits, imageSize); - OS.HeapFree(hHeap, 0, lpvBits); - } - /* Calculate the palette */ - PaletteData palette = null; - if (depth <= 8) { - RGB[] rgbs = new RGB[numColors]; - if (isDib) { - if (OS.IsWinCE) { - /* - * Feature on WinCE. GetDIBColorTable is not supported. - * The workaround is to set a pixel to the desired - * palette index and use getPixel to get the corresponding - * RGB value. - */ - int red = 0, green = 0, blue = 0; - byte[] pBits = new byte[1]; - OS.MoveMemory(pBits, bm.bmBits, 1); - byte oldValue = pBits[0]; - int mask = (0xFF << (8 - bm.bmBitsPixel)) & 0x00FF; - for (int i = 0; i < numColors; i++) { - pBits[0] = (byte)((i << (8 - bm.bmBitsPixel)) | (pBits[0] & ~mask)); - OS.MoveMemory(bm.bmBits, pBits, 1); - int color = OS.GetPixel(hBitmapDC, 0, 0); - blue = (color & 0xFF0000) >> 16; - green = (color & 0xFF00) >> 8; - red = color & 0xFF; - rgbs[i] = new RGB(red, green, blue); - } - pBits[0] = oldValue; - OS.MoveMemory(bm.bmBits, pBits, 1); - } else { - byte[] colors = new byte[numColors * 4]; - OS.GetDIBColorTable(hBitmapDC, 0, numColors, colors); - int colorIndex = 0; - for (int i = 0; i < rgbs.length; i++) { - rgbs[i] = new RGB(colors[colorIndex + 2] & 0xFF, colors[colorIndex + 1] & 0xFF, colors[colorIndex] & 0xFF); - colorIndex += 4; - } - } - } else { - int srcIndex = BITMAPINFOHEADER.sizeof; - for (int i = 0; i < numColors; i++) { - rgbs[i] = new RGB(bmi[srcIndex + 2] & 0xFF, bmi[srcIndex + 1] & 0xFF, bmi[srcIndex] & 0xFF); - srcIndex += 4; - } - } - palette = new PaletteData(rgbs); - } else if (depth == 16) { - palette = new PaletteData(0x7C00, 0x3E0, 0x1F); - } else if (depth == 24) { - palette = new PaletteData(0xFF, 0xFF00, 0xFF0000); - } else if (depth == 32) { - palette = new PaletteData(0xFF00, 0xFF0000, 0xFF000000); - } else { - SWT.error(SWT.ERROR_UNSUPPORTED_DEPTH); - } - /* Clean up */ - OS.SelectObject(hBitmapDC, hOldBitmap); - if (oldPalette != 0) { - OS.SelectPalette(hBitmapDC, oldPalette, false); - OS.RealizePalette(hBitmapDC); - } - if (OS.IsWinCE) { - if (handle != this.handle) { - /* free temporary DIB */ - OS.DeleteObject (handle); - } - } - OS.DeleteDC(hBitmapDC); - - /* Release the HDC for the device */ - device.internal_dispose_GC(hDC, null); - - /* Construct and return the ImageData */ - ImageData imageData = new ImageData(width, height, depth, palette, 4, data); - imageData.transparentPixel = this.transparentPixel; - imageData.alpha = alpha; - if (alpha == -1 && alphaData != null) { - imageData.alphaData = new byte[alphaData.length]; - System.arraycopy(alphaData, 0, imageData.alphaData, 0, alphaData.length); - } - return imageData; - } - default: - SWT.error(SWT.ERROR_INVALID_IMAGE); - return null; - } -} - -/** - * 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(Device device, int width, int height) { - if (width <= 0 || height <= 0) { - SWT.error (SWT.ERROR_INVALID_ARGUMENT); - } - this.device = device; - type = SWT.BITMAP; - int hDC = device.internal_new_GC(null); - handle = OS.CreateCompatibleBitmap(hDC, width, height); - /* - * Feature in Windows. CreateCompatibleBitmap() may fail - * for large images. The fix is to create a DIB section - * in that case. - */ - if (handle == 0) { - int bits = OS.GetDeviceCaps(hDC, OS.BITSPIXEL); - int planes = OS.GetDeviceCaps(hDC, OS.PLANES); - int depth = bits * planes; - if (depth < 16) depth = 16; - handle = createDIB(width, height, depth); - } - if (handle != 0) { - int memDC = OS.CreateCompatibleDC(hDC); - int hOldBitmap = OS.SelectObject(memDC, handle); - OS.PatBlt(memDC, 0, 0, width, height, OS.PATCOPY); - OS.SelectObject(memDC, hOldBitmap); - OS.DeleteDC(memDC); - } - device.internal_dispose_GC(hDC, null); - if (handle == 0) { - SWT.error(SWT.ERROR_NO_HANDLES, null, device.getLastError()); - } -} - -static int createDIB(int width, int height, int depth) { - BITMAPINFOHEADER bmiHeader = new BITMAPINFOHEADER(); - bmiHeader.biSize = BITMAPINFOHEADER.sizeof; - bmiHeader.biWidth = width; - bmiHeader.biHeight = -height; - bmiHeader.biPlanes = 1; - bmiHeader.biBitCount = (short)depth; - if (OS.IsWinCE) bmiHeader.biCompression = OS.BI_BITFIELDS; - else bmiHeader.biCompression = OS.BI_RGB; - byte[] bmi = new byte[BITMAPINFOHEADER.sizeof + (OS.IsWinCE ? 12 : 0)]; - OS.MoveMemory(bmi, bmiHeader, BITMAPINFOHEADER.sizeof); - /* Set the rgb colors into the bitmap info */ - if (OS.IsWinCE) { - int redMask = 0xFF00; - int greenMask = 0xFF0000; - int blueMask = 0xFF000000; - /* big endian */ - int offset = BITMAPINFOHEADER.sizeof; - bmi[offset] = (byte)((redMask & 0xFF000000) >> 24); - bmi[offset + 1] = (byte)((redMask & 0xFF0000) >> 16); - bmi[offset + 2] = (byte)((redMask & 0xFF00) >> 8); - bmi[offset + 3] = (byte)((redMask & 0xFF) >> 0); - bmi[offset + 4] = (byte)((greenMask & 0xFF000000) >> 24); - bmi[offset + 5] = (byte)((greenMask & 0xFF0000) >> 16); - bmi[offset + 6] = (byte)((greenMask & 0xFF00) >> 8); - bmi[offset + 7] = (byte)((greenMask & 0xFF) >> 0); - bmi[offset + 8] = (byte)((blueMask & 0xFF000000) >> 24); - bmi[offset + 9] = (byte)((blueMask & 0xFF0000) >> 16); - bmi[offset + 10] = (byte)((blueMask & 0xFF00) >> 8); - bmi[offset + 11] = (byte)((blueMask & 0xFF) >> 0); - } - - int[] pBits = new int[1]; - return OS.CreateDIBSection(0, bmi, OS.DIB_RGB_COLORS, pBits, 0, 0); -} - -/** - * Feature in WinCE. GetIconInfo is not available in WinCE. - * The workaround is to cache the object ImageData for images - * of type SWT.ICON. The bitmaps hbmMask and hbmColor can then - * be reconstructed by using our version of getIconInfo. - * This function takes an ICONINFO object and sets the fields - * hbmMask and hbmColor with the corresponding bitmaps it has - * created. - * Note. These bitmaps must be freed - as they would have to be - * if the regular GetIconInfo had been used. - */ -static void GetIconInfo(Image image, ICONINFO info) { - int[] result = init(image.device, null, image.data); - info.hbmColor = result[0]; - info.hbmMask = result[1]; -} - -static int[] init(Device device, Image image, ImageData i) { - if (image != null) image.device = device; - - /* - * BUG in Windows 98: - * A monochrome DIBSection will display as solid black - * on Windows 98 machines, even though it contains the - * correct data. The fix is to convert 1-bit ImageData - * into 4-bit ImageData before creating the image. - */ - /* Windows does not support 2-bit images. Convert to 4-bit image. */ - if ((OS.IsWin95 && i.depth == 1 && i.getTransparencyType() != SWT.TRANSPARENCY_MASK) || i.depth == 2) { - ImageData img = new ImageData(i.width, i.height, 4, i.palette); - ImageData.blit(ImageData.BLIT_SRC, - i.data, i.depth, i.bytesPerLine, i.getByteOrder(), 0, 0, i.width, i.height, null, null, null, - ImageData.ALPHA_OPAQUE, null, 0, 0, 0, - img.data, img.depth, img.bytesPerLine, i.getByteOrder(), 0, 0, img.width, img.height, null, null, null, - false, false); - img.transparentPixel = i.transparentPixel; - img.maskPad = i.maskPad; - img.maskData = i.maskData; - img.alpha = i.alpha; - img.alphaData = i.alphaData; - i = img; - } - /* - * Windows supports 16-bit mask of (0x7C00, 0x3E0, 0x1F), - * 24-bit mask of (0xFF0000, 0xFF00, 0xFF) and 32-bit mask - * (0x00FF0000, 0x0000FF00, 0x000000FF) as documented in - * MSDN BITMAPINFOHEADER. Make sure the image is - * Windows-supported. - */ - /* - * Note on WinCE. CreateDIBSection requires the biCompression - * field of the BITMAPINFOHEADER to be set to BI_BITFIELDS for - * 16 and 32 bit direct images (see MSDN for CreateDIBSection). - * In this case, the color mask can be set to any value. For - * consistency, it is set to the same mask used by non WinCE - * platforms in BI_RGB mode. - */ - if (i.palette.isDirect) { - final PaletteData palette = i.palette; - final int redMask = palette.redMask; - final int greenMask = palette.greenMask; - final int blueMask = palette.blueMask; - int newDepth = i.depth; - int newOrder = ImageData.MSB_FIRST; - PaletteData newPalette = null; - - switch (i.depth) { - case 8: - newDepth = 16; - newOrder = ImageData.LSB_FIRST; - newPalette = new PaletteData(0x7C00, 0x3E0, 0x1F); - break; - case 16: - newOrder = ImageData.LSB_FIRST; - if (!(redMask == 0x7C00 && greenMask == 0x3E0 && blueMask == 0x1F)) { - newPalette = new PaletteData(0x7C00, 0x3E0, 0x1F); - } - break; - case 24: - if (!(redMask == 0xFF && greenMask == 0xFF00 && blueMask == 0xFF0000)) { - newPalette = new PaletteData(0xFF, 0xFF00, 0xFF0000); - } - break; - case 32: - if (!(redMask == 0xFF00 && greenMask == 0xFF0000 && blueMask == 0xFF000000)) { - newPalette = new PaletteData(0xFF00, 0xFF0000, 0xFF000000); - } - break; - default: - SWT.error(SWT.ERROR_UNSUPPORTED_DEPTH); - } - if (newPalette != null) { - ImageData img = new ImageData(i.width, i.height, newDepth, newPalette); - ImageData.blit(ImageData.BLIT_SRC, - i.data, i.depth, i.bytesPerLine, i.getByteOrder(), 0, 0, i.width, i.height, redMask, greenMask, blueMask, - ImageData.ALPHA_OPAQUE, null, 0, 0, 0, - img.data, img.depth, img.bytesPerLine, newOrder, 0, 0, img.width, img.height, newPalette.redMask, newPalette.greenMask, newPalette.blueMask, - false, false); - if (i.transparentPixel != -1) { - img.transparentPixel = newPalette.getPixel(palette.getRGB(i.transparentPixel)); - } - img.maskPad = i.maskPad; - img.maskData = i.maskData; - img.alpha = i.alpha; - img.alphaData = i.alphaData; - i = img; - } - } - /* Construct bitmap info header by hand */ - RGB[] rgbs = i.palette.getRGBs(); - boolean useBitfields = OS.IsWinCE && (i.depth == 16 || i.depth == 32); - BITMAPINFOHEADER bmiHeader = new BITMAPINFOHEADER(); - bmiHeader.biSize = BITMAPINFOHEADER.sizeof; - bmiHeader.biWidth = i.width; - bmiHeader.biHeight = -i.height; - bmiHeader.biPlanes = 1; - bmiHeader.biBitCount = (short)i.depth; - if (useBitfields) bmiHeader.biCompression = OS.BI_BITFIELDS; - else bmiHeader.biCompression = OS.BI_RGB; - bmiHeader.biClrUsed = rgbs == null ? 0 : rgbs.length; - byte[] bmi; - if (i.palette.isDirect) - bmi = new byte[BITMAPINFOHEADER.sizeof + (useBitfields ? 12 : 0)]; - else - bmi = new byte[BITMAPINFOHEADER.sizeof + rgbs.length * 4]; - OS.MoveMemory(bmi, bmiHeader, BITMAPINFOHEADER.sizeof); - /* Set the rgb colors into the bitmap info */ - int offset = BITMAPINFOHEADER.sizeof; - if (i.palette.isDirect) { - if (useBitfields) { - PaletteData palette = i.palette; - int redMask = palette.redMask; - int greenMask = palette.greenMask; - int blueMask = palette.blueMask; - /* - * The color masks must be written based on the - * endianness of the ImageData. - */ - if (i.getByteOrder() == ImageData.LSB_FIRST) { - bmi[offset] = (byte)((redMask & 0xFF) >> 0); - bmi[offset + 1] = (byte)((redMask & 0xFF00) >> 8); - bmi[offset + 2] = (byte)((redMask & 0xFF0000) >> 16); - bmi[offset + 3] = (byte)((redMask & 0xFF000000) >> 24); - bmi[offset + 4] = (byte)((greenMask & 0xFF) >> 0); - bmi[offset + 5] = (byte)((greenMask & 0xFF00) >> 8); - bmi[offset + 6] = (byte)((greenMask & 0xFF0000) >> 16); - bmi[offset + 7] = (byte)((greenMask & 0xFF000000) >> 24); - bmi[offset + 8] = (byte)((blueMask & 0xFF) >> 0); - bmi[offset + 9] = (byte)((blueMask & 0xFF00) >> 8); - bmi[offset + 10] = (byte)((blueMask & 0xFF0000) >> 16); - bmi[offset + 11] = (byte)((blueMask & 0xFF000000) >> 24); - } else { - bmi[offset] = (byte)((redMask & 0xFF000000) >> 24); - bmi[offset + 1] = (byte)((redMask & 0xFF0000) >> 16); - bmi[offset + 2] = (byte)((redMask & 0xFF00) >> 8); - bmi[offset + 3] = (byte)((redMask & 0xFF) >> 0); - bmi[offset + 4] = (byte)((greenMask & 0xFF000000) >> 24); - bmi[offset + 5] = (byte)((greenMask & 0xFF0000) >> 16); - bmi[offset + 6] = (byte)((greenMask & 0xFF00) >> 8); - bmi[offset + 7] = (byte)((greenMask & 0xFF) >> 0); - bmi[offset + 8] = (byte)((blueMask & 0xFF000000) >> 24); - bmi[offset + 9] = (byte)((blueMask & 0xFF0000) >> 16); - bmi[offset + 10] = (byte)((blueMask & 0xFF00) >> 8); - bmi[offset + 11] = (byte)((blueMask & 0xFF) >> 0); - } - } - } else { - for (int j = 0; j < rgbs.length; j++) { - bmi[offset] = (byte)rgbs[j].blue; - bmi[offset + 1] = (byte)rgbs[j].green; - bmi[offset + 2] = (byte)rgbs[j].red; - bmi[offset + 3] = 0; - offset += 4; - } - } - int[] pBits = new int[1]; - int hDib = OS.CreateDIBSection(0, bmi, OS.DIB_RGB_COLORS, pBits, 0, 0); - if (hDib == 0) SWT.error(SWT.ERROR_NO_HANDLES); - /* In case of a scanline pad other than 4, do the work to convert it */ - byte[] data = i.data; - if (i.scanlinePad != 4 && (i.bytesPerLine % 4 != 0)) { - data = ImageData.convertPad(data, i.width, i.height, i.depth, i.scanlinePad, 4); - } - OS.MoveMemory(pBits[0], data, data.length); - - int[] result = null; - if (i.getTransparencyType() == SWT.TRANSPARENCY_MASK) { - /* Get the HDC for the device */ - int hDC = device.internal_new_GC(null); - - /* Create the color bitmap */ - int hdcSrc = OS.CreateCompatibleDC(hDC); - OS.SelectObject(hdcSrc, hDib); - int hBitmap = OS.CreateCompatibleBitmap(hDC, i.width, i.height); - if (hBitmap == 0) SWT.error(SWT.ERROR_NO_HANDLES); - int hdcDest = OS.CreateCompatibleDC(hDC); - OS.SelectObject(hdcDest, hBitmap); - OS.BitBlt(hdcDest, 0, 0, i.width, i.height, hdcSrc, 0, 0, OS.SRCCOPY); - - /* Release the HDC for the device */ - device.internal_dispose_GC(hDC, null); - - /* Create the mask. Windows requires icon masks to have a scanline pad of 2. */ - byte[] maskData = ImageData.convertPad(i.maskData, i.width, i.height, 1, i.maskPad, 2); - int hMask = OS.CreateBitmap(i.width, i.height, 1, 1, maskData); - if (hMask == 0) SWT.error(SWT.ERROR_NO_HANDLES); - OS.SelectObject(hdcSrc, hMask); - OS.PatBlt(hdcSrc, 0, 0, i.width, i.height, OS.DSTINVERT); - OS.DeleteDC(hdcSrc); - OS.DeleteDC(hdcDest); - OS.DeleteObject(hDib); - - if (image == null) { - result = new int[]{hBitmap, hMask}; - } else { - /* Create the icon */ - ICONINFO info = new ICONINFO(); - info.fIcon = true; - info.hbmColor = hBitmap; - info.hbmMask = hMask; - int hIcon = OS.CreateIconIndirect(info); - if (hIcon == 0) SWT.error(SWT.ERROR_NO_HANDLES); - OS.DeleteObject(hBitmap); - OS.DeleteObject(hMask); - image.handle = hIcon; - image.type = SWT.ICON; - if (OS.IsWinCE) image.data = i; - } - } else { - if (image == null) { - result = new int[]{hDib}; - } else { - image.handle = hDib; - image.type = SWT.BITMAP; - image.transparentPixel = i.transparentPixel; - if (image.transparentPixel == -1) { - image.alpha = i.alpha; - if (i.alpha == -1 && i.alphaData != null) { - int length = i.alphaData.length; - image.alphaData = new byte[length]; - System.arraycopy(i.alphaData, 0, image.alphaData, 0, length); - } - } - } - } - return result; -} - -static int[] init(Device device, Image image, ImageData source, ImageData mask) { - /* Create a temporary image and locate the black pixel */ - ImageData imageData; - int blackIndex = 0; - if (source.palette.isDirect) { - imageData = new ImageData(source.width, source.height, source.depth, source.palette); - } else { - RGB black = new RGB(0, 0, 0); - RGB[] rgbs = source.getRGBs(); - if (source.transparentPixel != -1) { - /* - * The source had transparency, so we can use the transparent pixel - * for black. - */ - RGB[] newRGBs = new RGB[rgbs.length]; - System.arraycopy(rgbs, 0, newRGBs, 0, rgbs.length); - if (source.transparentPixel >= newRGBs.length) { - /* Grow the palette with black */ - rgbs = new RGB[source.transparentPixel + 1]; - System.arraycopy(newRGBs, 0, rgbs, 0, newRGBs.length); - for (int i = newRGBs.length; i <= source.transparentPixel; i++) { - rgbs[i] = new RGB(0, 0, 0); - } - } else { - newRGBs[source.transparentPixel] = black; - rgbs = newRGBs; - } - blackIndex = source.transparentPixel; - imageData = new ImageData(source.width, source.height, source.depth, new PaletteData(rgbs)); - } else { - while (blackIndex < rgbs.length) { - if (rgbs[blackIndex].equals(black)) break; - blackIndex++; - } - if (blackIndex == rgbs.length) { - /* - * We didn't find black in the palette, and there is no transparent - * pixel we can use. - */ - if ((1 << source.depth) > rgbs.length) { - /* We can grow the palette and add black */ - RGB[] newRGBs = new RGB[rgbs.length + 1]; - System.arraycopy(rgbs, 0, newRGBs, 0, rgbs.length); - newRGBs[rgbs.length] = black; - rgbs = newRGBs; - } else { - /* No room to grow the palette */ - blackIndex = -1; - } - } - imageData = new ImageData(source.width, source.height, source.depth, new PaletteData(rgbs)); - } - } - if (blackIndex == -1) { - /* There was no black in the palette, so just copy the data over */ - System.arraycopy(source.data, 0, imageData.data, 0, imageData.data.length); - } else { - /* Modify the source image to contain black wherever the mask is 0 */ - int[] imagePixels = new int[imageData.width]; - int[] maskPixels = new int[mask.width]; - for (int y = 0; y < imageData.height; y++) { - source.getPixels(0, y, imageData.width, imagePixels, 0); - mask.getPixels(0, y, mask.width, maskPixels, 0); - for (int i = 0; i < imagePixels.length; i++) { - if (maskPixels[i] == 0) imagePixels[i] = blackIndex; - } - imageData.setPixels(0, y, source.width, imagePixels, 0); - } - } - imageData.maskPad = mask.scanlinePad; - imageData.maskData = mask.data; - return init(device, image, imageData); -} -void init(Device device, ImageData i) { - if (i == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - init(device, this, i); -} - -/** - * 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); - } - - /* Create a compatible HDC for the device */ - int hDC = device.internal_new_GC(null); - int imageDC = OS.CreateCompatibleDC(hDC); - device.internal_dispose_GC(hDC, null); - if (imageDC == 0) SWT.error(SWT.ERROR_NO_HANDLES); - - if (data != null) { - /* Set the GCData fields */ - int mask = SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT; - if ((data.style & mask) != 0) { - data.layout = (data.style & SWT.RIGHT_TO_LEFT) != 0 ? OS.LAYOUT_RTL : 0; - } else { - data.style |= SWT.LEFT_TO_RIGHT; - } - data.device = device; - data.image = this; - data.hFont = device.systemFont; - } - return imageDC; -} - -/** - * 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 hDC, GCData data) { - OS.DeleteDC(hDC); -} - -/** - * 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) { - /* - * Note. Not implemented on WinCE. - */ - if (OS.IsWinCE) return; - 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; - - /* Get the HDC for the device */ - int hDC = device.internal_new_GC(null); - - /* Change the background color in the image */ - BITMAP bm = new BITMAP(); - OS.GetObject(handle, BITMAP.sizeof, bm); - int hdcMem = OS.CreateCompatibleDC(hDC); - OS.SelectObject(hdcMem, handle); - int maxColors = 1 << bm.bmBitsPixel; - byte[] colors = new byte[maxColors * 4]; - if (OS.IsWinCE) SWT.error(SWT.ERROR_NOT_IMPLEMENTED); - int numColors = OS.GetDIBColorTable(hdcMem, 0, maxColors, colors); - int offset = transparentPixel * 4; - colors[offset] = (byte)color.getBlue(); - colors[offset + 1] = (byte)color.getGreen(); - colors[offset + 2] = (byte)color.getRed(); - if (OS.IsWinCE) SWT.error(SWT.ERROR_NOT_IMPLEMENTED); - OS.SetDIBColorTable(hdcMem, 0, numColors, colors); - OS.DeleteDC(hdcMem); - - /* Release the HDC for the device */ - device.internal_dispose_GC(hDC, null); -} - -/** - * 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 win32_new(Device device, int type, int handle) { - if (device == null) device = Device.getDevice(); - Image image = new Image(); - image.type = type; - image.handle = handle; - image.device = device; - return image; -} - -} |