2 * Copyright (c) 2008, 2009, Google Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 #include "DragImage.h"
35 #include "NativeImageSkia.h"
36 #include "NotImplemented.h"
40 #include "skia/ext/image_operations.h"
44 IntSize dragImageSize(DragImageRef image)
49 return IntSize(image->width(), image->height());
52 void deleteDragImage(DragImageRef image)
57 DragImageRef scaleDragImage(DragImageRef image, FloatSize scale)
62 int imageWidth = scale.width() * image->width();
63 int imageHeight = scale.height() * image->height();
64 DragImageRef scaledImage = new SkBitmap(
65 skia::ImageOperations::Resize(*image, skia::ImageOperations::RESIZE_LANCZOS3,
66 imageWidth, imageHeight));
71 DragImageRef dissolveDragImageToFraction(DragImageRef image, float fraction)
76 image->setIsOpaque(false);
79 for (int row = 0; row < image->height(); ++row) {
80 for (int column = 0; column < image->width(); ++column) {
81 uint32_t* pixel = image->getAddr32(column, row);
82 *pixel = SkPreMultiplyARGB(SkColorGetA(*pixel) * fraction,
89 image->unlockPixels();
94 DragImageRef createDragImageFromImage(Image* image)
99 NativeImageSkia* bitmap = image->nativeImageForCurrentFrame();
103 SkBitmap* dragImage = new SkBitmap();
104 bitmap->bitmap().copyTo(dragImage, SkBitmap::kARGB_8888_Config);
108 DragImageRef createDragImageIconForCachedImage(CachedImage*)
114 } // namespace WebCore