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      1 /*
      2  * Copyright (C) 2011 Google 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 are
      6  * met:
      7  *
      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
     13  * distribution.
     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.
     17  *
     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.
     29  */
     30 
     31 #ifndef GraphicsContextBuilder_h
     32 #define GraphicsContextBuilder_h
     33 
     34 #include "GraphicsContext.h"
     35 
     36 #if WEBKIT_USING_CG
     37 #include "LocalCurrentGraphicsContext.h"
     38 #elif WEBKIT_USING_SKIA
     39 #include "PlatformContextSkia.h"
     40 #endif
     41 
     42 namespace WebKit {
     43 
     44 #if WEBKIT_USING_CG
     45 
     46 class GraphicsContextBuilder {
     47 public:
     48     GraphicsContextBuilder(WebCanvas* canvas)
     49         : m_graphicsContext(canvas)
     50         , m_localContext(&m_graphicsContext)
     51     {
     52     }
     53 
     54     WebCore::GraphicsContext& context() { return m_graphicsContext; }
     55 
     56 private:
     57     WebCore::GraphicsContext m_graphicsContext;
     58     WebCore::LocalCurrentGraphicsContext m_localContext;
     59 };
     60 
     61 #elif WEBKIT_USING_SKIA
     62 
     63 class GraphicsContextBuilder {
     64 public:
     65     GraphicsContextBuilder(WebCanvas* canvas)
     66         : m_platformContext(canvas)
     67         , m_graphicsContext(&m_platformContext)
     68     {
     69     }
     70 
     71     WebCore::GraphicsContext& context() { return m_graphicsContext; }
     72 
     73 private:
     74     WebCore::PlatformContextSkia m_platformContext;
     75     WebCore::GraphicsContext m_graphicsContext;
     76 };
     77 
     78 #else
     79 #error "Need to define GraphicsContextBuilder!"
     80 #endif
     81 
     82 } // namespace WebKit
     83 
     84 #endif
     85