Home | History | Annotate | Download | only in cg 
      1 /*
      2  * Copyright (C) 2005, 2006, 2007 Apple Inc. All rights reserved.
      3  *           (C) 2007 Graham Dennis (graham.dennis (at) gmail.com)
      4  *           (C) 2007 Eric Seidel <eric (at) 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
     85