1 // Copyright 2016 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 
7 #ifndef CORE_FPDFAPI_RENDER_CPDF_SCALEDRENDERBUFFER_H_
8 #define CORE_FPDFAPI_RENDER_CPDF_SCALEDRENDERBUFFER_H_
9 
10 #include <memory>
11 
12 #include "core/fxcrt/fx_coordinates.h"
13 #include "core/fxcrt/unowned_ptr.h"
14 
15 class CFX_DefaultRenderDevice;
16 class CFX_RenderDevice;
17 class CPDF_PageObject;
18 class CPDF_RenderContext;
19 class CPDF_RenderOptions;
20 
21 class CPDF_ScaledRenderBuffer {
22  public:
23   CPDF_ScaledRenderBuffer();
24   ~CPDF_ScaledRenderBuffer();
25 
26   bool Initialize(CPDF_RenderContext* pContext,
27                   CFX_RenderDevice* pDevice,
28                   const FX_RECT& rect,
29                   const CPDF_PageObject* pObj,
30                   const CPDF_RenderOptions* pOptions,
31                   int max_dpi);
32 
33   CFX_RenderDevice* GetDevice() const;
GetMatrix()34   const CFX_Matrix& GetMatrix() const { return m_Matrix; }
35   void OutputToDevice();
36 
37  private:
38   UnownedPtr<CFX_RenderDevice> m_pDevice;
39   UnownedPtr<CPDF_RenderContext> m_pContext;
40   FX_RECT m_Rect;
41   UnownedPtr<const CPDF_PageObject> m_pObject;
42   std::unique_ptr<CFX_DefaultRenderDevice> m_pBitmapDevice;
43   CFX_Matrix m_Matrix;
44 };
45 
46 #endif  // CORE_FPDFAPI_RENDER_CPDF_SCALEDRENDERBUFFER_H_
47