/* | |
* Copyright (C) 2007, 2009 Apple Inc. All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* | |
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
#import "config.h" | |
#import "DragImage.h" | |
#if ENABLE(DRAG_SUPPORT) | |
#import "CachedImage.h" | |
#import "Image.h" | |
#import "KURL.h" | |
#import "ResourceResponse.h" | |
namespace WebCore { | |
IntSize dragImageSize(RetainPtr<NSImage> image) | |
{ | |
return (IntSize)[image.get() size]; | |
} | |
void deleteDragImage(RetainPtr<NSImage>) | |
{ | |
// Since this is a RetainPtr, there's nothing additional we need to do to | |
// delete it. It will be released when it falls out of scope. | |
} | |
RetainPtr<NSImage> scaleDragImage(RetainPtr<NSImage> image, FloatSize scale) | |
{ | |
NSSize originalSize = [image.get() size]; | |
NSSize newSize = NSMakeSize((originalSize.width * scale.width()), (originalSize.height * scale.height())); | |
newSize.width = roundf(newSize.width); | |
newSize.height = roundf(newSize.height); | |
[image.get() setScalesWhenResized:YES]; | |
[image.get() setSize:newSize]; | |
return image; | |
} | |
RetainPtr<NSImage> dissolveDragImageToFraction(RetainPtr<NSImage> image, float delta) | |
{ | |
RetainPtr<NSImage> dissolvedImage(AdoptNS, [[NSImage alloc] initWithSize:[image.get() size]]); | |
NSPoint point = [image.get() isFlipped] ? NSMakePoint(0, [image.get() size].height) : NSZeroPoint; | |
// In this case the dragging image is always correct. | |
[dissolvedImage.get() setFlipped:[image.get() isFlipped]]; | |
[dissolvedImage.get() lockFocus]; | |
[image.get() dissolveToPoint:point fraction: delta]; | |
[dissolvedImage.get() unlockFocus]; | |
[image.get() lockFocus]; | |
[dissolvedImage.get() compositeToPoint:point operation:NSCompositeCopy]; | |
[image.get() unlockFocus]; | |
return image; | |
} | |
RetainPtr<NSImage> createDragImageFromImage(Image* image) | |
{ | |
RetainPtr<NSImage> dragImage(AdoptNS, [image->getNSImage() copy]); | |
[dragImage.get() setSize:(NSSize)(image->size())]; | |
return dragImage; | |
} | |
RetainPtr<NSImage> createDragImageIconForCachedImage(CachedImage* image) | |
{ | |
const String& filename = image->response().suggestedFilename(); | |
NSString *extension = nil; | |
int dotIndex = filename.reverseFind('.'); | |
if (dotIndex > 0 && dotIndex < (int)(filename.length() - 1)) // require that a . exists after the first character and before the last | |
extension = filename.substring(dotIndex + 1); | |
else { | |
// It might be worth doing a further lookup to pull the extension from the MIME type. | |
extension = @""; | |
} | |
return [[NSWorkspace sharedWorkspace] iconForFileType:extension]; | |
} | |
} // namespace WebCore | |
#endif // ENABLE(DRAG_SUPPORT) |