| /******************************************************************************* |
| * Copyright (c) 2000, 2017 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 java.io.*; |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.cocoa.*; |
| |
| /** |
| * 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> |
| * |
| * @noreference This field is not intended to be referenced by clients. |
| */ |
| 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> |
| * |
| * @noreference This field is not intended to be referenced by clients. |
| */ |
| public NSImage handle; |
| |
| /** |
| * The GC the image is currently selected in. |
| */ |
| GC memGC; |
| |
| /** |
| * The global alpha value to be used for every pixel. |
| */ |
| |
| /** |
| * The width of the image. |
| */ |
| int width = -1; |
| |
| /** |
| * The height of the image. |
| */ |
| int height = -1; |
| |
| /** |
| * Specifies the default scanline padding. |
| */ |
| static final int DEFAULT_SCANLINE_PAD = 4; |
| |
| /** |
| * ImageFileNameProvider to provide file names at various Zoom levels |
| */ |
| private ImageFileNameProvider imageFileNameProvider; |
| |
| /** |
| * ImageDataProvider to provide ImageData at various Zoom levels |
| */ |
| private ImageDataProvider imageDataProvider; |
| |
| /** |
| * Alpha information objects for 100%, 200% |
| */ |
| private AlphaInfo alphaInfo_100, alphaInfo_200; |
| |
| private Callback callback_draw_representation; |
| |
| private long method; |
| |
| private long methodImpl; |
| |
| private Callback callback_drawInRect; |
| |
| private long method1; |
| |
| private long methodImpl1; |
| |
| static class AlphaInfo { |
| /** |
| * The alpha data of the image. |
| */ |
| byte [] alphaData; |
| /** |
| * The global alpha value to be used for every pixel. |
| */ |
| int alpha; |
| /** |
| * specifies the transparent pixel |
| */ |
| int transparentPixel; |
| |
| AlphaInfo () { |
| transparentPixel = -1; |
| alpha = -1; |
| } |
| |
| void init(NSImageRep nativeRep, NSBitmapImageRep rep) { |
| int width = (int)/*64*/nativeRep.pixelsWide(); |
| int height = (int)/*64*/nativeRep.pixelsHigh(); |
| |
| boolean hasAlpha = rep.hasAlpha(); |
| int bpr = width * 4; |
| NSRect rect = new NSRect(); |
| rect.width = width; |
| rect.height = height; |
| |
| /* Compute the pixels */ |
| long /*int*/ colorspace = OS.CGColorSpaceCreateDeviceRGB(); |
| long /*int*/ ctx = OS.CGBitmapContextCreate(rep.bitmapData(), width, height, 8, bpr, colorspace, OS.kCGImageAlphaNoneSkipFirst); |
| OS.CGColorSpaceRelease(colorspace); |
| NSGraphicsContext.static_saveGraphicsState(); |
| NSGraphicsContext.setCurrentContext(NSGraphicsContext.graphicsContextWithGraphicsPort(ctx, false)); |
| nativeRep.drawInRect(rect); |
| NSGraphicsContext.static_restoreGraphicsState(); |
| OS.CGContextRelease(ctx); |
| |
| if (hasAlpha) { |
| /* Compute the alpha values */ |
| long /*int*/ bitmapBytesPerRow = width; |
| long /*int*/ bitmapByteCount = bitmapBytesPerRow * height; |
| long /*int*/ alphaBitmapData = C.malloc(bitmapByteCount); |
| long /*int*/ alphaBitmapCtx = OS.CGBitmapContextCreate(alphaBitmapData, width, height, 8, bitmapBytesPerRow, 0, OS.kCGImageAlphaOnly); |
| NSGraphicsContext.static_saveGraphicsState(); |
| NSGraphicsContext.setCurrentContext(NSGraphicsContext.graphicsContextWithGraphicsPort(alphaBitmapCtx, false)); |
| nativeRep.drawInRect(rect); |
| NSGraphicsContext.static_restoreGraphicsState(); |
| byte[] alphaData = new byte[(int)/*64*/bitmapByteCount]; |
| C.memmove(alphaData, alphaBitmapData, bitmapByteCount); |
| C.free(alphaBitmapData); |
| OS.CGContextRelease(alphaBitmapCtx); |
| |
| /* Merge the alpha values with the pixels */ |
| byte[] srcData = new byte[height * bpr]; |
| C.memmove(srcData, rep.bitmapData(), srcData.length); |
| for (int a = 0, p = 0; a < alphaData.length; a++, p += 4) { |
| srcData[p] = alphaData[a]; |
| float alpha = alphaData[a] & 0xFF; |
| if (alpha != 0) { |
| srcData[p+1] = (byte)(((srcData[p+1] & 0xFF) / alpha) * 0xFF); |
| srcData[p+2] = (byte)(((srcData[p+2] & 0xFF) / alpha) * 0xFF); |
| srcData[p+3] = (byte)(((srcData[p+3] & 0xFF) / alpha) * 0xFF); |
| } |
| } |
| C.memmove(rep.bitmapData(), srcData, srcData.length); |
| |
| // If the alpha has only 0 or 255 (-1) for alpha values, compute the transparent pixel color instead |
| // of a continuous alpha range. |
| int transparentOffset = -1, i = 0; |
| for (i = 0; i < alphaData.length; i++) { |
| int alpha = alphaData[i]; |
| if (transparentOffset == -1 && alpha == 0) transparentOffset = i; |
| if (!(alpha == 0 || alpha == -1)) break; |
| } |
| this.alpha = -1; |
| if (i == alphaData.length && transparentOffset != -1) { |
| NSColor color = rep.colorAtX(transparentOffset % width, transparentOffset / width); |
| int red = (int) (color.redComponent() * 255); |
| int green = (int) (color.greenComponent() * 255); |
| int blue = (int) (color.blueComponent() * 255); |
| this.transparentPixel = (red << 16) | (green << 8) | blue; |
| |
| /* |
| * If the image has opaque pixels that have the same color as the transparent |
| * pixel, create an alpha image instead of using transparent pixel. |
| */ |
| for (int j = 0; j < srcData.length; j+=4) { |
| if (srcData [j] != 0) { |
| int pixel = ((srcData[j+1] & 0xFF) << 16) | ((srcData[j+2] & 0xFF) << 8) | (srcData[j+3] & 0xFF); |
| if (pixel == this.transparentPixel){ |
| this.transparentPixel = -1; |
| break; |
| } |
| } |
| } |
| } |
| if (this.transparentPixel == -1) this.alphaData = alphaData; |
| } |
| } |
| } |
| |
| 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> |
| * <p> |
| * You must dispose the image when it is no longer required. |
| * </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> |
| * |
| * @see #dispose() |
| */ |
| public Image(Device device, int width, int height) { |
| super(device); |
| NSAutoreleasePool pool = null; |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| init(width, height); |
| init(); |
| } finally { |
| if (pool != null) pool.release(); |
| } |
| } |
| |
| /** |
| * 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> |
| * <p> |
| * You must dispose the image when it is no longer required. |
| * </p> |
| * |
| * @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> |
| * |
| * @see #dispose() |
| */ |
| public Image(Device device, Image srcImage, int flag) { |
| super(device); |
| if (srcImage == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| if (srcImage.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| switch (flag) { |
| case SWT.IMAGE_COPY: |
| case SWT.IMAGE_DISABLE: |
| case SWT.IMAGE_GRAY: |
| break; |
| default: |
| SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| } |
| |
| NSAutoreleasePool pool = null; |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| this.type = srcImage.type; |
| /* Get source image size */ |
| NSSize size = srcImage.handle.size(); |
| int srcWidth = (int)size.width; |
| int srcHeight = (int)size.height; |
| |
| /* Copy alpha information (transparent pixel and alpha data) for 100% & 200% image representations from source image*/ |
| alphaInfo_100 = new AlphaInfo(); |
| copyAlphaInfo(srcImage.alphaInfo_100, alphaInfo_100); |
| if (srcImage.alphaInfo_200 != null) { |
| alphaInfo_200 = new AlphaInfo(); |
| copyAlphaInfo(srcImage.alphaInfo_200, alphaInfo_200); |
| } |
| |
| /* Create the image */ |
| handle = (NSImage)new NSImage().alloc(); |
| handle = handle.initWithSize(size); |
| handle.setCacheMode(OS.NSImageCacheNever); |
| |
| /* Create the 100% representation for the new image from source image & apply flag */ |
| createRepFromSourceAndApplyFlag(srcImage.getRepresentation_100(), srcWidth, srcHeight, flag); |
| |
| imageFileNameProvider = srcImage.imageFileNameProvider; |
| imageDataProvider = srcImage.imageDataProvider; |
| if (imageFileNameProvider != null || imageDataProvider != null) { |
| /* If source image has 200% representation then create the 200% representation for the new image & apply flag */ |
| NSBitmapImageRep rep200 = srcImage.getRepresentation_200(); |
| if (rep200 != null) createRepFromSourceAndApplyFlag(rep200, srcWidth * 2, srcHeight * 2, flag); |
| } |
| init(); |
| } finally { |
| if (pool != null) pool.release(); |
| } |
| } |
| |
| /** |
| * Copies the AlphaInfo from source to destination. |
| */ |
| private void copyAlphaInfo(AlphaInfo src_alphaInfo, AlphaInfo dest_alphaInfo) { |
| dest_alphaInfo.transparentPixel = src_alphaInfo.transparentPixel; |
| dest_alphaInfo.alpha = src_alphaInfo.alpha; |
| if (src_alphaInfo.alphaData != null) { |
| dest_alphaInfo.alphaData = new byte[src_alphaInfo.alphaData.length]; |
| System.arraycopy(src_alphaInfo.alphaData, 0, dest_alphaInfo.alphaData, 0, dest_alphaInfo.alphaData.length); |
| } |
| } |
| |
| /** |
| * Creates a new NSBitmapImageRep image representation for the Image from the source NSBitmapImageRep representation and adds the rep to the Image. |
| * Applies the flag to the newly created representation. This method is invoked from the Image copy constructor. |
| */ |
| private void createRepFromSourceAndApplyFlag(NSBitmapImageRep srcRep, int srcWidth, int srcHeight, int flag) { |
| long /*int*/ srcData = srcRep.bitmapData(); |
| long /*int*/ srcBitmapFormat = srcRep.bitmapFormat(); |
| long /*int*/ srcBpp = srcRep.bitsPerPixel(); |
| long /*int*/ srcBpr = srcRep.bytesPerRow(); |
| |
| NSBitmapImageRep rep = (NSBitmapImageRep)new NSBitmapImageRep().alloc(); |
| rep = rep.initWithBitmapDataPlanes(0, srcWidth, srcHeight, srcRep.bitsPerSample(), srcRep.samplesPerPixel(), srcRep.hasAlpha(), srcRep.isPlanar(), OS.NSDeviceRGBColorSpace, srcBitmapFormat, srcRep.bytesPerRow(), srcBpp); |
| handle.addRepresentation(rep); |
| rep.release(); |
| |
| long /*int*/ data = rep.bitmapData(); |
| C.memmove(data, srcData, srcWidth * srcHeight * 4); |
| if (flag != SWT.IMAGE_COPY) { |
| final int redOffset, greenOffset, blueOffset; |
| if (srcBpp == 32 && (srcBitmapFormat & OS.NSAlphaFirstBitmapFormat) == 0) { |
| redOffset = 0; |
| greenOffset = 1; |
| blueOffset = 2; |
| } else { |
| redOffset = 1; |
| greenOffset = 2; |
| blueOffset = 3; |
| } |
| /* Apply transformation */ |
| switch (flag) { |
| case SWT.IMAGE_DISABLE: { |
| Color zeroColor = this.device.getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW); |
| RGB zeroRGB = zeroColor.getRGB(); |
| byte zeroRed = (byte)zeroRGB.red; |
| byte zeroGreen = (byte)zeroRGB.green; |
| byte zeroBlue = (byte)zeroRGB.blue; |
| Color oneColor = this.device.getSystemColor(SWT.COLOR_WIDGET_BACKGROUND); |
| RGB oneRGB = oneColor.getRGB(); |
| byte oneRed = (byte)oneRGB.red; |
| byte oneGreen = (byte)oneRGB.green; |
| byte oneBlue = (byte)oneRGB.blue; |
| byte[] line = new byte[(int)/*64*/srcBpr]; |
| for (int y=0; y<srcHeight; y++) { |
| C.memmove(line, data + (y * srcBpr), srcBpr); |
| int offset = 0; |
| for (int x=0; x<srcWidth; x++) { |
| int red = line[offset+redOffset] & 0xFF; |
| int green = line[offset+greenOffset] & 0xFF; |
| int blue = line[offset+blueOffset] & 0xFF; |
| int intensity = red * red + green * green + blue * blue; |
| if (intensity < 98304) { |
| line[offset+redOffset] = zeroRed; |
| line[offset+greenOffset] = zeroGreen; |
| line[offset+blueOffset] = zeroBlue; |
| } else { |
| line[offset+redOffset] = oneRed; |
| line[offset+greenOffset] = oneGreen; |
| line[offset+blueOffset] = oneBlue; |
| } |
| offset += 4; |
| } |
| C.memmove(data + (y * srcBpr), line, srcBpr); |
| } |
| break; |
| } |
| case SWT.IMAGE_GRAY: { |
| byte[] line = new byte[(int)/*64*/srcBpr]; |
| for (int y=0; y<srcHeight; y++) { |
| C.memmove(line, data + (y * srcBpr), srcBpr); |
| int offset = 0; |
| for (int x=0; x<srcWidth; x++) { |
| int red = line[offset+redOffset] & 0xFF; |
| int green = line[offset+greenOffset] & 0xFF; |
| int blue = line[offset+blueOffset] & 0xFF; |
| byte intensity = (byte)((red+red+green+green+green+green+green+blue) >> 3); |
| line[offset+redOffset] = line[offset+greenOffset] = line[offset+blueOffset] = intensity; |
| offset += 4; |
| } |
| C.memmove(data + (y * srcBpr), line, srcBpr); |
| } |
| break; |
| } |
| } |
| } |
| } |
| |
| /** |
| * 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> |
| * <p> |
| * You must dispose the image when it is no longer required. |
| * </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> |
| * |
| * @see #dispose() |
| */ |
| public Image(Device device, Rectangle bounds) { |
| super(device); |
| if (bounds == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| NSAutoreleasePool pool = null; |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| init(bounds.width, bounds.height); |
| init(); |
| } finally { |
| if (pool != null) pool.release(); |
| } |
| } |
| |
| /** |
| * Constructs an instance of this class from the given |
| * <code>ImageData</code>. |
| * <p> |
| * You must dispose the image when it is no longer required. |
| * </p> |
| * |
| * @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> |
| * |
| * @see #dispose() |
| */ |
| public Image(Device device, ImageData data) { |
| super(device); |
| NSAutoreleasePool pool = null; |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| init(data); |
| init(); |
| } finally { |
| if (pool != null) pool.release(); |
| } |
| } |
| |
| /** |
| * 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> |
| * <p> |
| * You must dispose the image when it is no longer required. |
| * </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> |
| * |
| * @see #dispose() |
| */ |
| 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); |
| } |
| NSAutoreleasePool pool = null; |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| 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); |
| } finally { |
| if (pool != null) pool.release(); |
| } |
| } |
| |
| /** |
| * 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> |
| * <p> |
| * You must dispose the image when it is no longer required. |
| * </p> |
| * |
| * @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> |
| * |
| * @see #dispose() |
| */ |
| public Image(Device device, InputStream stream) { |
| super(device); |
| NSAutoreleasePool pool = null; |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| init(new ImageData(stream)); |
| init(); |
| } finally { |
| if (pool != null) pool.release(); |
| } |
| } |
| |
| /** |
| * 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. |
| * <p> |
| * You must dispose the image when it is no longer required. |
| * </p> |
| * |
| * @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> |
| * |
| * @see #dispose() |
| */ |
| public Image(Device device, String filename) { |
| super(device); |
| NSAutoreleasePool pool = null; |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| if (filename == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| initNative(filename); |
| if (this.handle == null) init(new ImageData(filename)); |
| init(); |
| } finally { |
| if (pool != null) pool.release(); |
| } |
| } |
| |
| /** |
| * Constructs an instance of this class by loading its representation |
| * from the file retrieved from the ImageFileNameProvider. 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 for loading image as |
| * per DPI level. |
| * |
| * @param device the device on which to create the image |
| * @param imageFileNameProvider the ImageFileNameProvider object that is |
| * to be used to get the file name |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> |
| * <li>ERROR_NULL_ARGUMENT - if the ImageFileNameProvider is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the fileName provided by ImageFileNameProvider is null at 100% zoom</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> |
| * @since 3.104 |
| */ |
| public Image(Device device, ImageFileNameProvider imageFileNameProvider) { |
| super(device); |
| if (imageFileNameProvider == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| this.imageFileNameProvider = imageFileNameProvider; |
| String filename = imageFileNameProvider.getImagePath(100); |
| if (filename == null) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| NSAutoreleasePool pool = null; |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| initNative(filename); |
| if (this.handle == null) init(new ImageData(filename)); |
| init(); |
| String filename2x = imageFileNameProvider.getImagePath(200); |
| if (filename2x != null) { |
| alphaInfo_200 = new AlphaInfo(); |
| id id = NSImageRep.imageRepWithContentsOfFile(NSString.stringWith(filename2x)); |
| NSImageRep rep = new NSImageRep(id); |
| handle.addRepresentation(rep); |
| } |
| } finally { |
| if (pool != null) pool.release(); |
| } |
| } |
| |
| /** |
| * Constructs an instance of this class by loading its representation |
| * from the ImageData retrieved from the ImageDataProvider. 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 for loading image as |
| * per DPI level. |
| * |
| * @param device the device on which to create the image |
| * @param imageDataProvider the ImageDataProvider object that is |
| * to be used to get the ImageData |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> |
| * <li>ERROR_NULL_ARGUMENT - if the ImageDataProvider is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the ImageData provided by ImageDataProvider is null at 100% zoom</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> |
| * @since 3.104 |
| */ |
| public Image(Device device, ImageDataProvider imageDataProvider) { |
| super(device); |
| |
| if (imageDataProvider == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| this.imageDataProvider = imageDataProvider; |
| ImageData data = imageDataProvider.getImageData (100); |
| if (data == null) SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| |
| |
| NSAutoreleasePool pool = null; |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| init (data); |
| init (); |
| ImageData data2x = imageDataProvider.getImageData (200); |
| if (data2x != null) { |
| alphaInfo_200 = new AlphaInfo(); |
| NSBitmapImageRep rep = createRepresentation (data2x, alphaInfo_200); |
| handle.addRepresentation(rep); |
| rep.release(); |
| } |
| addCallBacks (); |
| } finally { |
| if (pool != null) pool.release(); |
| } |
| } |
| |
| void addCallBacks () { |
| System.out.println("add call backs"); |
| callback_draw_representation = new Callback(this, "_drawRepresentationInRect", 4); |
| long /*int*/ proc = callback_draw_representation.getAddress(); |
| if (proc == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS); |
| method = OS.class_getInstanceMethod(OS.class_NSImage, OS.sel_drawRepresentation_inRect_); |
| if (method != 0) methodImpl = OS.method_setImplementation(method, proc); |
| |
| callback_drawInRect = new Callback(this, "_drawAtPoint", 5); |
| proc = 0; |
| proc = callback_draw_representation.getAddress(); |
| if (proc == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS); |
| method1 = OS.class_getInstanceMethod(OS.class_NSImage, OS.sel_drawAtPoint_fromRect_operation_fraction_); |
| if (method1 != 0) methodImpl1 = OS.method_setImplementation(method1, proc); |
| } |
| |
| long /*int*/ _drawRepresentationInRect (long id, long sel, long imageRep, long NSRect) { |
| System.out.println("draw representation"); |
| return 1; |
| } |
| |
| long /*int*/ _drawInRect (long id, long sel, long NSRect) { |
| System.out.println("draw in rect"); |
| return 1; |
| } |
| |
| long /*int*/ _drawAtPoint (long id, long sel, long NSRect, long op, long fraction) { |
| System.out.println("draw at point"); |
| return 1; |
| } |
| |
| private AlphaInfo _getAlphaInfoAtCurrentZoom (NSBitmapImageRep rep) { |
| int deviceZoom = DPIUtil.getDeviceZoom(); |
| if (deviceZoom != 100 && (imageFileNameProvider != null || imageDataProvider != null)) { |
| if (alphaInfo_100.alphaData != null && alphaInfo_200 != null) { |
| if (alphaInfo_200.alphaData == null) initAlpha_200(rep); |
| return alphaInfo_200; |
| } |
| } |
| return alphaInfo_100; |
| } |
| |
| ImageData _getImageData (NSBitmapImageRep imageRep, AlphaInfo info) { |
| long /*int*/ width = imageRep.pixelsWide(); |
| long /*int*/ height = imageRep.pixelsHigh(); |
| long /*int*/ bpr = imageRep.bytesPerRow(); |
| long /*int*/ bpp = imageRep.bitsPerPixel(); |
| long /*int*/ bitmapData = imageRep.bitmapData(); |
| long /*int*/ bitmapFormat = imageRep.bitmapFormat(); |
| long /*int*/ dataSize = height * bpr; |
| byte[] srcData = new byte[(int)/*64*/dataSize]; |
| C.memmove(srcData, bitmapData, dataSize); |
| |
| PaletteData palette; |
| if (bpp == 32 && (bitmapFormat & OS.NSAlphaFirstBitmapFormat) == 0) { |
| palette = new PaletteData(0xFF000000, 0xFF0000, 0xFF00); |
| } else { |
| palette = new PaletteData(0xFF0000, 0xFF00, 0xFF); |
| } |
| ImageData data = new ImageData((int)/*64*/width, (int)/*64*/height, (int)/*64*/bpp, palette, 1, srcData); |
| data.bytesPerLine = (int)/*64*/bpr; |
| if (imageRep.hasAlpha() && info.transparentPixel == -1 && info.alpha == -1 && info.alphaData == null) { |
| byte[] alphaD = new byte[(int) (dataSize/4)]; |
| int offset = (bitmapFormat & OS.NSAlphaFirstBitmapFormat) != 0 ? 0 : 3, a = 0; |
| for (int i = offset; i < srcData.length && a < alphaD.length; i+= 4, a++) { |
| alphaD[a] = srcData[i]; |
| } |
| data.alphaData = alphaD; |
| } else { |
| data.transparentPixel = info.transparentPixel; |
| if (info.transparentPixel == -1 && type == SWT.ICON) { |
| /* Get the icon mask data */ |
| int maskPad = 2; |
| long /*int*/ maskBpl = (((width + 7) / 8) + (maskPad - 1)) / maskPad * maskPad; |
| byte[] maskData = new byte[(int)/*64*/(height * maskBpl)]; |
| int offset = 0, maskOffset = 0; |
| for (int y = 0; y<height; y++) { |
| for (int x = 0; x<width; x++) { |
| if (srcData[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 = info.alpha; |
| if (info.alpha == -1 && info.alphaData != null) { |
| data.alphaData = new byte[info.alphaData.length]; |
| System.arraycopy(info.alphaData, 0, data.alphaData, 0, info.alphaData.length); |
| } |
| } |
| if (bpp == 32) { |
| int offset = (bitmapFormat & OS.NSAlphaFirstBitmapFormat) != 0 ? 0 : 3; |
| for (int i = offset; i < srcData.length; i+= 4) { |
| srcData[i] = 0; |
| } |
| } |
| return data; |
| } |
| |
| /** |
| * 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 nsImage the OS data for the image |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| */ |
| public static Image cocoa_new(Device device, int type, NSImage nsImage) { |
| Image image = new Image(device); |
| image.type = type; |
| image.handle = nsImage; |
| image.alphaInfo_100 = new AlphaInfo(); |
| return image; |
| } |
| |
| void createAlpha () { |
| AlphaInfo info = alphaInfo_100; |
| if (info.transparentPixel == -1 && info.alpha == -1 && info.alphaData == null) return; |
| NSAutoreleasePool pool = null; |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| NSBitmapImageRep imageRep = getRepresentation(); |
| long /*int*/ height = imageRep.pixelsHigh(); |
| long /*int*/ bpr = imageRep.bytesPerRow(); |
| long /*int*/ bitmapData = imageRep.bitmapData(); |
| long /*int*/ format = imageRep.bitmapFormat(); |
| long /*int*/ dataSize = height * bpr; |
| byte[] srcData = new byte[(int)/*64*/dataSize]; |
| C.memmove(srcData, bitmapData, dataSize); |
| if (info.transparentPixel != -1) { |
| if ((format & OS.NSAlphaFirstBitmapFormat) != 0) { |
| for (int i=0; i<dataSize; i+=4) { |
| int pixel = ((srcData[i+1] & 0xFF) << 16) | ((srcData[i+2] & 0xFF) << 8) | (srcData[i+3] & 0xFF); |
| srcData[i] = (byte)(pixel == info.transparentPixel ? 0 : 0xFF); |
| } |
| } else { |
| for (int i=0; i<dataSize; i+=4) { |
| int pixel = ((srcData[i+0] & 0xFF) << 16) | ((srcData[i+1] & 0xFF) << 8) | (srcData[i+2] & 0xFF); |
| srcData[i] = (byte)(pixel == info.transparentPixel ? 0 : 0xFF); |
| } |
| } |
| } else if (info.alpha != -1) { |
| byte a = (byte)info.alpha; |
| for (int i=(format & OS.NSAlphaFirstBitmapFormat) != 0 ? 0 : 3; i<dataSize; i+=4) { |
| srcData[i] = a; |
| } |
| } else { |
| long /*int*/ width = imageRep.pixelsWide(); |
| int offset = 0, alphaOffset = (format & OS.NSAlphaFirstBitmapFormat) != 0 ? 0 : 3; |
| for (int y = 0; y<height; y++) { |
| for (int x = 0; x<width; x++) { |
| srcData[offset] = info.alphaData[alphaOffset]; |
| offset += 4; |
| alphaOffset += 1; |
| } |
| } |
| } |
| |
| // Since we just calculated alpha for the image rep, tell it that it now has an alpha component. |
| imageRep.setAlpha(true); |
| |
| C.memmove(bitmapData, srcData, dataSize); |
| } finally { |
| if (pool != null) pool.release(); |
| } |
| } |
| |
| private NSBitmapImageRep createRepresentation(ImageData imageData, AlphaInfo alphaInfo) { |
| NSBitmapImageRep rep = (NSBitmapImageRep)new NSBitmapImageRep().alloc(); |
| |
| PaletteData palette = imageData.palette; |
| if (!(((imageData.depth == 1 || imageData.depth == 2 || imageData.depth == 4 || imageData.depth == 8) && !palette.isDirect) || |
| ((imageData.depth == 8) || (imageData.depth == 16 || imageData.depth == 24 || imageData.depth == 32) && palette.isDirect))) |
| SWT.error(SWT.ERROR_UNSUPPORTED_DEPTH); |
| |
| /* Create the image */ |
| int dataSize = imageData.width * imageData.height * 4; |
| |
| /* Initialize data */ |
| int bpr = imageData.width * 4; |
| byte[] buffer = new byte[dataSize]; |
| if (palette.isDirect) { |
| ImageData.blit(ImageData.BLIT_SRC, |
| imageData.data, imageData.depth, imageData.bytesPerLine, imageData.getByteOrder(), 0, 0, imageData.width, imageData.height, palette.redMask, palette.greenMask, palette.blueMask, |
| ImageData.ALPHA_OPAQUE, null, 0, 0, 0, |
| buffer, 32, bpr, ImageData.MSB_FIRST, 0, 0, imageData.width, imageData.height, 0xFF0000, 0xFF00, 0xFF, |
| false, false); |
| } else { |
| RGB[] rgbs = palette.getRGBs(); |
| int length = rgbs.length; |
| byte[] srcReds = new byte[length]; |
| byte[] srcGreens = new byte[length]; |
| byte[] srcBlues = new byte[length]; |
| for (int i = 0; i < rgbs.length; i++) { |
| RGB rgb = rgbs[i]; |
| if (rgb == null) continue; |
| srcReds[i] = (byte)rgb.red; |
| srcGreens[i] = (byte)rgb.green; |
| srcBlues[i] = (byte)rgb.blue; |
| } |
| ImageData.blit(ImageData.BLIT_SRC, |
| imageData.data, imageData.depth, imageData.bytesPerLine, imageData.getByteOrder(), 0, 0, imageData.width, imageData.height, srcReds, srcGreens, srcBlues, |
| ImageData.ALPHA_OPAQUE, null, 0, 0, 0, |
| buffer, 32, bpr, ImageData.MSB_FIRST, 0, 0, imageData.width, imageData.height, 0xFF0000, 0xFF00, 0xFF, |
| false, false); |
| } |
| |
| /* Initialize transparency */ |
| int transparency = imageData.getTransparencyType(); |
| boolean hasAlpha = transparency != SWT.TRANSPARENCY_NONE; |
| if (transparency == SWT.TRANSPARENCY_MASK || imageData.transparentPixel != -1) { |
| this.type = imageData.transparentPixel != -1 ? SWT.BITMAP : SWT.ICON; |
| if (imageData.transparentPixel != -1) { |
| int transRed = 0, transGreen = 0, transBlue = 0; |
| if (palette.isDirect) { |
| RGB rgb = palette.getRGB(imageData.transparentPixel); |
| transRed = rgb.red; |
| transGreen = rgb.green; |
| transBlue = rgb.blue; |
| } else { |
| RGB[] rgbs = palette.getRGBs(); |
| if (imageData.transparentPixel < rgbs.length) { |
| RGB rgb = rgbs[imageData.transparentPixel]; |
| transRed = rgb.red; |
| transGreen = rgb.green; |
| transBlue = rgb.blue; |
| } |
| } |
| alphaInfo.transparentPixel = transRed << 16 | transGreen << 8 | transBlue; |
| } |
| ImageData maskImage = imageData.getTransparencyMask(); |
| byte[] maskData = maskImage.data; |
| int maskBpl = maskImage.bytesPerLine; |
| int offset = 0, maskOffset = 0; |
| for (int y = 0; y<imageData.height; y++) { |
| for (int x = 0; x<imageData.width; x++) { |
| buffer[offset] = ((maskData[maskOffset + (x >> 3)]) & (1 << (7 - (x & 0x7)))) != 0 ? (byte)0xff : 0; |
| offset += 4; |
| } |
| maskOffset += maskBpl; |
| } |
| } else { |
| this.type = SWT.BITMAP; |
| if (imageData.alpha != -1) { |
| hasAlpha = true; |
| alphaInfo.alpha = imageData.alpha; |
| byte a = (byte)alphaInfo.alpha; |
| for (int dataIndex=0; dataIndex<buffer.length; dataIndex+=4) { |
| buffer[dataIndex] = a; |
| } |
| } else if (imageData.alphaData != null) { |
| hasAlpha = true; |
| alphaInfo.alphaData = new byte[imageData.alphaData.length]; |
| System.arraycopy(imageData.alphaData, 0, alphaInfo.alphaData, 0, alphaInfo.alphaData.length); |
| int offset = 0, alphaOffset = 0; |
| for (int y = 0; y<imageData.height; y++) { |
| for (int x = 0; x<imageData.width; x++) { |
| buffer[offset] = alphaInfo.alphaData[alphaOffset]; |
| offset += 4; |
| alphaOffset += 1; |
| } |
| } |
| } |
| } |
| |
| rep = rep.initWithBitmapDataPlanes(0, imageData.width, imageData.height, 8, hasAlpha ? 4 : 3, hasAlpha, false, OS.NSDeviceRGBColorSpace, OS.NSAlphaFirstBitmapFormat | OS.NSAlphaNonpremultipliedBitmapFormat, bpr, 32); |
| C.memmove(rep.bitmapData(), buffer, dataSize); |
| return rep; |
| } |
| |
| @Override |
| void destroy() { |
| if (method != 0) OS.method_setImplementation(method, methodImpl); |
| if (callback_draw_representation != null) callback_draw_representation.dispose(); |
| callback_draw_representation = null; |
| |
| if (method1 != 0) OS.method_setImplementation(method1, methodImpl1); |
| if (callback_drawInRect != null) callback_drawInRect.dispose(); |
| callback_drawInRect = null; |
| |
| if (memGC != null) memGC.dispose(); |
| handle.release(); |
| handle = null; |
| 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 |
| */ |
| @Override |
| public boolean equals (Object object) { |
| if (object == this) return true; |
| if (!(object instanceof Image)) return false; |
| Image image = (Image)object; |
| if (device != image.device || alphaInfo_100.transparentPixel != image.alphaInfo_100.transparentPixel) return false; |
| if (imageDataProvider != null && image.imageDataProvider != null) { |
| return imageDataProvider.equals (image.imageDataProvider); |
| } else if (imageFileNameProvider != null && image.imageFileNameProvider != null) { |
| return imageFileNameProvider.equals (image.imageFileNameProvider); |
| } else { |
| return handle == image.handle; |
| } |
| } |
| |
| /** |
| * Returns the image representation at 100%. Creates the representation if necessary. |
| */ |
| NSBitmapImageRep getRepresentation_100 () { |
| NSArray reps = handle.representations(); |
| NSSize size = handle.size(); |
| long /*int*/ count = reps.count(); |
| for (int i = 0; i < count; i++) { |
| NSBitmapImageRep rep = new NSBitmapImageRep(reps.objectAtIndex(i)); |
| if (((int)size.width == rep.pixelsWide() && (int)size.height == rep.pixelsHigh())) { |
| if (rep.isKindOfClass(OS.class_NSBitmapImageRep)) { |
| return rep; |
| } |
| } |
| } |
| NSBitmapImageRep newRep = (NSBitmapImageRep)new NSBitmapImageRep().alloc(); |
| newRep = newRep.initWithData(handle.TIFFRepresentation()); |
| newRep.setSize(size); |
| handle.addRepresentation(newRep); |
| newRep.release(); |
| return newRep; |
| } |
| |
| /** |
| * Returns the image representation at 200%, or null if none is available. |
| */ |
| NSBitmapImageRep getRepresentation_200 () { |
| NSArray reps = handle.representations(); |
| NSSize size = handle.size(); |
| long /*int*/ count = reps.count(); |
| for (int i = 0; i < count; i++) { |
| NSBitmapImageRep rep = new NSBitmapImageRep(reps.objectAtIndex(i)); |
| int width = (int)size.width * 2; |
| int height = (int)size.height * 2; |
| if ((width == rep.pixelsWide() && height == rep.pixelsHigh())) { |
| if (rep.isKindOfClass(OS.class_NSBitmapImageRep)) { |
| return rep; |
| } |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * 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); |
| NSBitmapImageRep imageRep = getRepresentation(); |
| AlphaInfo alphaInfo = _getAlphaInfoAtCurrentZoom(imageRep); |
| if (alphaInfo.transparentPixel == -1) return null; |
| int red = (alphaInfo.transparentPixel >> 16) & 0xFF; |
| int green = (alphaInfo.transparentPixel >> 8) & 0xFF; |
| int blue = (alphaInfo.transparentPixel >> 0) & 0xFF; |
| return Color.cocoa_new(device, new double /*float*/ []{red / 255f, green / 255f, blue / 255f, 1}); |
| } |
| |
| /** |
| * 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 in points. |
| * |
| * @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); |
| NSAutoreleasePool pool = null; |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| if (width != -1 && height != -1) { |
| return new Rectangle(0, 0, width, height); |
| } |
| NSSize size = handle.size(); |
| return new Rectangle(0, 0, width = (int)size.width, height = (int)size.height); |
| } finally { |
| if (pool != null) pool.release(); |
| } |
| } |
| |
| /** |
| * 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 in pixels. |
| * |
| * @return a rectangle specifying the image's bounds in pixels. |
| * |
| * @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> |
| * @since 3.105 |
| * @deprecated This API doesn't serve the purpose in an environment having |
| * multiple monitors with different DPIs, hence deprecated. |
| */ |
| @Deprecated |
| public Rectangle getBoundsInPixels() { |
| Rectangle bounds = getBounds(); |
| int scaleFactor = (int) NSScreen.mainScreen().backingScaleFactor(); |
| bounds.width *= scaleFactor; |
| bounds.height *= scaleFactor; |
| return bounds; |
| } |
| |
| /** |
| * 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 at 100% zoom level. |
| * |
| * @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() { |
| return getImageData(100); |
| } |
| |
| /** |
| * 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 at the current zoom level. |
| * |
| * @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 |
| * @since 3.105 |
| * @deprecated This API doesn't serve the purpose in an environment having |
| * multiple monitors with different DPIs, hence deprecated. Use |
| * {@link #getImageData(int)} instead. |
| */ |
| @Deprecated |
| public ImageData getImageDataAtCurrentZoom() { |
| return getImageData(DPIUtil.getDeviceZoom()); |
| } |
| |
| /** |
| * Returns an {@link ImageData} for the given zoom level based on the |
| * receiver. |
| * <p> |
| * Note that this method is mainly intended to be used by custom |
| * implementations of {@link ImageDataProvider} that draw a composite image |
| * at the requested zoom level based on other images. For custom zoom |
| * levels, the image data may be an auto-scaled version of the native image |
| * and may look more blurred or mangled than expected. |
| * </p> |
| * <p> |
| * Modifications made to the returned {@code ImageData} will not affect this |
| * {@code Image}. |
| * </p> |
| * |
| * @param zoom |
| * The zoom level in % of the standard resolution (which is 1 |
| * physical monitor pixel == 1 SWT logical pixel). Typically 100, |
| * 150, or 200. |
| * @return an <code>ImageData</code> containing the image's data and |
| * attributes at the given zoom level |
| * |
| * @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> |
| * |
| * @since 3.106 |
| */ |
| public ImageData getImageData(int zoom) { |
| if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| NSAutoreleasePool pool = null; |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| boolean hasImageProvider = imageFileNameProvider != null || imageDataProvider != null; |
| if (zoom == 100) { |
| NSBitmapImageRep imageRep; |
| imageRep = hasImageProvider ? getRepresentation_100() : getRepresentation(); |
| return _getImageData(imageRep, alphaInfo_100); |
| } |
| if (zoom == 200) { |
| if (hasImageProvider) { |
| NSBitmapImageRep imageRep200 = getRepresentation_200(); |
| if (imageRep200 != null) { |
| if (alphaInfo_100.alphaData != null && alphaInfo_200 != null) { |
| if (alphaInfo_200.alphaData == null) initAlpha_200(imageRep200); |
| } |
| return _getImageData(imageRep200, alphaInfo_200); |
| } |
| } |
| } |
| } finally { |
| if (pool != null) pool.release(); |
| } |
| return DPIUtil.autoScaleImageData (device, getImageData(), zoom, 100); |
| } |
| |
| /** Returns the best available representation. May be 100% or 200% iff there is an image provider. */ |
| NSBitmapImageRep getRepresentation () { |
| NSBitmapImageRep rep = new NSBitmapImageRep(handle.bestRepresentationForDevice(null)); |
| if (rep.isKindOfClass(OS.class_NSBitmapImageRep)) { |
| return rep; |
| } |
| NSArray reps = handle.representations(); |
| NSSize size = handle.size(); |
| long /*int*/ count = reps.count(); |
| NSBitmapImageRep bestRep = null; |
| for (int i = 0; i < count; i++) { |
| rep = new NSBitmapImageRep(reps.objectAtIndex(i)); |
| if (rep.isKindOfClass(OS.class_NSBitmapImageRep)) return rep; |
| if (bestRep == null || ((int)size.width == rep.pixelsWide() && (int)size.height == rep.pixelsHigh())) { |
| bestRep = rep; |
| } |
| } |
| bestRep.retain(); |
| for (int i = 0; i < count; i++) { |
| handle.removeRepresentation(new NSImageRep(handle.representations().objectAtIndex(0))); |
| } |
| handle.addRepresentation(bestRep); |
| NSBitmapImageRep newRep = (NSBitmapImageRep)new NSBitmapImageRep().alloc(); |
| newRep = newRep.initWithData(handle.TIFFRepresentation()); |
| handle.addRepresentation(newRep); |
| handle.removeRepresentation(bestRep); |
| bestRep.release(); |
| newRep.release(); |
| return newRep; |
| } |
| |
| /** |
| * 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 |
| */ |
| @Override |
| public int hashCode () { |
| if (imageDataProvider != null) { |
| return imageDataProvider.hashCode(); |
| } else if (imageFileNameProvider != null) { |
| return imageFileNameProvider.hashCode(); |
| } else { |
| return handle != null ? (int)/*64*/handle.id : 0; |
| } |
| } |
| |
| void init(int width, int height) { |
| if (width <= 0 || height <= 0) { |
| SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| this.type = SWT.BITMAP; |
| this.width = width; |
| this.height = height; |
| |
| handle = (NSImage)new NSImage().alloc(); |
| NSSize size = new NSSize(); |
| size.width = width; |
| size.height = height; |
| handle = handle.initWithSize(size); |
| NSBitmapImageRep rep = (NSBitmapImageRep)new NSBitmapImageRep().alloc(); |
| rep = rep.initWithBitmapDataPlanes(0, width, height, 8, 3, false, false, OS.NSDeviceRGBColorSpace, OS.NSAlphaFirstBitmapFormat | OS.NSAlphaNonpremultipliedBitmapFormat, width * 4, 32); |
| C.memset(rep.bitmapData(), 0xFF, width * height * 4); |
| handle.addRepresentation(rep); |
| rep.release(); |
| handle.setCacheMode(OS.NSImageCacheNever); |
| if (alphaInfo_100 == null) alphaInfo_100 = new AlphaInfo(); |
| } |
| |
| void init(ImageData image) { |
| if (image == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| |
| if (handle != null) handle.release(); |
| |
| handle = (NSImage)new NSImage().alloc(); |
| NSSize size = new NSSize(); |
| size.width = width; |
| size.height = height; |
| handle = handle.initWithSize(size); |
| this.width = image.width; |
| this.height = image.height; |
| if (alphaInfo_100 == null) alphaInfo_100 = new AlphaInfo(); |
| NSBitmapImageRep rep = createRepresentation(image, alphaInfo_100); |
| handle.addRepresentation(rep); |
| rep.release(); |
| handle.setCacheMode(OS.NSImageCacheNever); |
| } |
| |
| void initAlpha_200(NSBitmapImageRep nativeRep) { |
| NSAutoreleasePool pool = null; |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| int width = (int)/*64*/nativeRep.pixelsWide(); |
| int height = (int)/*64*/nativeRep.pixelsHigh(); |
| |
| boolean hasAlpha = nativeRep.hasAlpha(); |
| int bpr = width * 4; |
| NSBitmapImageRep rep = (NSBitmapImageRep)new NSBitmapImageRep().alloc(); |
| rep = rep.initWithBitmapDataPlanes(0, width, height, 8, hasAlpha ? 4 : 3, hasAlpha, false, OS.NSDeviceRGBColorSpace, OS.NSAlphaFirstBitmapFormat | OS.NSAlphaNonpremultipliedBitmapFormat, bpr, 32); |
| |
| if (alphaInfo_200 == null) alphaInfo_200 = new AlphaInfo(); |
| alphaInfo_200.init(nativeRep, rep); |
| } finally { |
| if (pool != null) pool.release(); |
| } |
| |
| } |
| |
| void initNative(String filename) { |
| NSAutoreleasePool pool = null; |
| NSImage nativeImage = null; |
| |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| nativeImage = new NSImage(); |
| nativeImage.alloc(); |
| |
| // initByReferencingFile returns null if the file can't be found or is |
| // not an image. |
| nativeImage = nativeImage.initWithContentsOfFile(NSString.stringWith(filename)); |
| if (nativeImage == null) { |
| // In order to get the same kind of exception, let the file format try to load and throw |
| // the appropriate exception. It is possible file format supports some image formats |
| // that is not natively supported as well. |
| return; |
| } |
| |
| NSImageRep nativeRep = nativeImage.bestRepresentationForDevice(null); |
| if (!nativeRep.isKindOfClass(OS.class_NSBitmapImageRep)) { |
| return; |
| } |
| width = (int)/*64*/nativeRep.pixelsWide(); |
| height = (int)/*64*/nativeRep.pixelsHigh(); |
| |
| boolean hasAlpha = nativeRep.hasAlpha(); |
| int bpr = width * 4; |
| handle = (NSImage)new NSImage().alloc(); |
| NSSize size = new NSSize(); |
| size.width = width; |
| size.height = height; |
| handle = handle.initWithSize(size); |
| NSBitmapImageRep rep = (NSBitmapImageRep)new NSBitmapImageRep().alloc(); |
| rep = rep.initWithBitmapDataPlanes(0, width, height, 8, hasAlpha ? 4 : 3, hasAlpha, false, OS.NSDeviceRGBColorSpace, OS.NSAlphaFirstBitmapFormat | OS.NSAlphaNonpremultipliedBitmapFormat, bpr, 32); |
| handle.addRepresentation(rep); |
| rep.release(); |
| handle.setCacheMode(OS.NSImageCacheNever); |
| |
| if (alphaInfo_100 == null) alphaInfo_100 = new AlphaInfo(); |
| alphaInfo_100.init(nativeRep, rep); |
| |
| // For compatibility, images created from .ico files are treated as SWT.ICON format, even though |
| // they are no different than other bitmaps in Cocoa. |
| if (filename.toLowerCase().endsWith(".ico")) { |
| this.type = SWT.ICON; |
| } else { |
| this.type = SWT.BITMAP; |
| } |
| } finally { |
| if (nativeImage != null) nativeImage.release(); |
| if (pool != null) pool.release(); |
| } |
| } |
| |
| /** |
| * 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 |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| */ |
| @Override |
| public long /*int*/ internal_new_GC (GCData data) { |
| if (handle == null) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); |
| if (type != SWT.BITMAP || memGC != null) { |
| SWT.error(SWT.ERROR_INVALID_ARGUMENT); |
| } |
| NSAutoreleasePool pool = null; |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| NSBitmapImageRep imageRep = getRepresentation(); |
| |
| // Can't perform transforms on image reps with alpha. |
| imageRep.setAlpha(false); |
| |
| NSGraphicsContext context = NSGraphicsContext.graphicsContextWithBitmapImageRep(imageRep); |
| NSGraphicsContext flippedContext = NSGraphicsContext.graphicsContextWithGraphicsPort(context.graphicsPort(), true); |
| context = flippedContext; |
| context.retain(); |
| if (data != null) data.flippedContext = flippedContext; |
| NSGraphicsContext.static_saveGraphicsState(); |
| NSGraphicsContext.setCurrentContext(context); |
| NSAffineTransform transform = NSAffineTransform.transform(); |
| NSSize size = handle.size(); |
| transform.translateXBy(0, size.height); |
| transform.scaleXBy(1, -1); |
| transform.set(); |
| NSGraphicsContext.static_restoreGraphicsState(); |
| 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.background = device.COLOR_WHITE.handle; |
| data.foreground = device.COLOR_BLACK.handle; |
| data.font = device.systemFont; |
| data.image = this; |
| } |
| return context.id; |
| } finally { |
| if (pool != null) pool.release(); |
| } |
| } |
| |
| /** |
| * 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 |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| */ |
| @Override |
| public void internal_dispose_GC (long /*int*/ hDC, GCData data) { |
| long /*int*/ context = hDC; |
| NSAutoreleasePool pool = null; |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| if (context != 0) { |
| /* |
| * Bug in cocoa. For some reason, there cases when the image pixels |
| * are not transfered from the underlining CGImage into the bitmap |
| * representation. This only happens when bitmapData() is called. |
| */ |
| NSBitmapImageRep imageRep = getRepresentation(); |
| imageRep.bitmapData(); |
| |
| NSGraphicsContext contextObj = new NSGraphicsContext(context); |
| contextObj.release(); |
| } |
| // handle.setCacheMode(OS.NSImageCacheDefault); |
| } finally { |
| if (pool != null) pool.release(); |
| } |
| } |
| |
| /** |
| * 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 (except {@link #dispose()}) using the image. |
| * |
| * @return <code>true</code> when the image is disposed and <code>false</code> otherwise |
| */ |
| @Override |
| public boolean isDisposed() { |
| return handle == null; |
| } |
| |
| /** |
| * 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); |
| NSAutoreleasePool pool = null; |
| if (!NSThread.isMainThread()) pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init(); |
| try { |
| NSBitmapImageRep imageRep = getRepresentation(); |
| AlphaInfo alphaInfo = _getAlphaInfoAtCurrentZoom(imageRep); |
| if (alphaInfo.transparentPixel == -1) return; |
| byte red = (byte)((alphaInfo.transparentPixel >> 16) & 0xFF); |
| byte green = (byte)((alphaInfo.transparentPixel >> 8) & 0xFF); |
| byte blue = (byte)((alphaInfo.transparentPixel >> 0) & 0xFF); |
| byte newRed = (byte)((int)(color.handle[0] * 255) & 0xFF); |
| byte newGreen = (byte)((int)(color.handle[1] * 255) & 0xFF); |
| byte newBlue = (byte)((int)(color.handle[2] * 255) & 0xFF); |
| long height = imageRep.pixelsHigh(); |
| long /*int*/ bpr = imageRep.bytesPerRow(); |
| long /*int*/ data = imageRep.bitmapData(); |
| long /*int*/ format = imageRep.bitmapFormat(); |
| long /*int*/ bpp = imageRep.bitsPerPixel(); |
| final int redOffset, greenOffset, blueOffset; |
| if (bpp == 32 && (format & OS.NSAlphaFirstBitmapFormat) == 0) { |
| redOffset = 0; |
| greenOffset = 1; |
| blueOffset = 2; |
| } else { |
| redOffset = 1; |
| greenOffset = 2; |
| blueOffset = 3; |
| } |
| byte[] line = new byte[(int)bpr]; |
| for (int i = 0, offset = 0; i < height; i++, offset += bpr) { |
| C.memmove(line, data + offset, bpr); |
| for (int j = 0; j < line.length; j += 4) { |
| if (line[j + redOffset] == red && line[j + greenOffset] == green && line[j + blueOffset] == blue) { |
| line[j + redOffset] = newRed; |
| line[j + greenOffset] = newGreen; |
| line[j + blueOffset] = newBlue; |
| } |
| } |
| C.memmove(data + offset, line, bpr); |
| } |
| alphaInfo.transparentPixel = (newRed & 0xFF) << 16 | (newGreen & 0xFF) << 8 | (newBlue & 0xFF); |
| } finally { |
| if (pool != null) pool.release(); |
| } |
| } |
| |
| /** |
| * Returns a string containing a concise, human-readable |
| * description of the receiver. |
| * |
| * @return a string representation of the receiver |
| */ |
| @Override |
| public String toString () { |
| if (isDisposed()) return "Image {*DISPOSED*}"; |
| return "Image {" + handle + "}"; |
| } |
| |
| } |
| |