1 /*

     2  * Copyright (C) 2005, 2006, 2007 Apple Inc. All rights reserved.

     3  *           (C) 2007 Graham Dennis (graham.dennis@gmail.com)

     4  *           (C) 2007 Eric Seidel <eric@webkit.org>

     5  *

     6  * Redistribution and use in source and binary forms, with or without

     7  * modification, are permitted provided that the following conditions

     8  * are met:

     9  *

    10  * 1.  Redistributions of source code must retain the above copyright

    11  *     notice, this list of conditions and the following disclaimer.

    12  * 2.  Redistributions in binary form must reproduce the above copyright

    13  *     notice, this list of conditions and the following disclaimer in the

    14  *     documentation and/or other materials provided with the distribution.

    15  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

    16  *     its contributors may be used to endorse or promote products derived

    17  *     from this software without specific prior written permission.

    18  *

    19  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

    20  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

    21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

    22  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

    23  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

    24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

    25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

    26  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

    28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    29  */

    30 

    31 #ifndef PixelDumpSupportCG_h

    32 #define PixelDumpSupportCG_h

    33 

    34 #include <wtf/PassRefPtr.h>

    35 #include <wtf/RefCounted.h>

    36 #include <wtf/RetainPtr.h>

    37 

    38 #if PLATFORM(WIN)

    39 #include <windows.h>

    40 #endif

    41 

    42 typedef struct CGContext* CGContextRef;

    43 

    44 #if PLATFORM(MAC)

    45 typedef void* PlatformBitmapBuffer;

    46 #elif PLATFORM(WIN)

    47 typedef HBITMAP PlatformBitmapBuffer;

    48 #endif

    49 

    50 class BitmapContext : public RefCounted<BitmapContext> {

    51 public:

    52     static PassRefPtr<BitmapContext> createByAdoptingBitmapAndContext(PlatformBitmapBuffer buffer, CGContextRef context)

    53     {

    54         return adoptRef(new BitmapContext(buffer, context));

    55     }

    56 

    57     ~BitmapContext()

    58     {

    59         if (m_buffer)

    60 #if PLATFORM(MAC)

    61             free(m_buffer);

    62 #elif PLATFORM(WIN)

    63             DeleteObject(m_buffer);

    64 #endif

    65     }

    66 

    67     CGContextRef cgContext() const { return m_context.get(); }

    68 

    69 private:

    70 

    71     BitmapContext(PlatformBitmapBuffer buffer, CGContextRef context)

    72         : m_buffer(buffer)

    73         , m_context(AdoptCF, context)

    74     {

    75     }

    76 

    77     PlatformBitmapBuffer m_buffer;

    78     RetainPtr<CGContextRef> m_context;

    79 

    80 };

    81 

    82 PassRefPtr<BitmapContext> createBitmapContextFromWebView(bool onscreen, bool incrementalRepaint, bool sweepHorizontally, bool drawSelectionRect);

    83 

    84 #endif // PixelDumpSupportCG_h