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      1 /*
      2  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "DragImage.h"
     28 
     29 #include "CachedImage.h"
     30 #include "GraphicsContext.h"
     31 #include "Image.h"
     32 #include "RetainPtr.h"
     33 
     34 #include <windows.h>
     35 
     36 namespace WebCore {
     37 
     38 IntSize dragImageSize(DragImageRef image)
     39 {
     40     if (!image)
     41         return IntSize();
     42     BITMAP b;
     43     GetObject(image, sizeof(BITMAP), &b);
     44     return IntSize(b.bmWidth, b.bmHeight);
     45 }
     46 
     47 void deleteDragImage(DragImageRef image)
     48 {
     49     if (image)
     50         ::DeleteObject(image);
     51 }
     52 
     53 DragImageRef dissolveDragImageToFraction(DragImageRef image, float)
     54 {
     55     //We don't do this on windows as the dragimage is blended by the OS
     56     return image;
     57 }
     58 
     59 DragImageRef createDragImageIconForCachedImage(CachedImage* image)
     60 {
     61     if (!image)
     62         return 0;
     63 
     64     String filename = image->response().suggestedFilename();
     65 
     66     SHFILEINFO shfi = {0};
     67     if (FAILED(SHGetFileInfo(static_cast<LPCWSTR>(filename.charactersWithNullTermination()), FILE_ATTRIBUTE_NORMAL,
     68         &shfi, sizeof(shfi), SHGFI_ICON | SHGFI_USEFILEATTRIBUTES)))
     69         return 0;
     70 
     71     ICONINFO iconInfo;
     72     if (!GetIconInfo(shfi.hIcon, &iconInfo)) {
     73         DestroyIcon(shfi.hIcon);
     74         return 0;
     75     }
     76 
     77     DestroyIcon(shfi.hIcon);
     78     DeleteObject(iconInfo.hbmMask);
     79 
     80     return iconInfo.hbmColor;
     81 }
     82 
     83 }
     84