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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_FXGE_CFX_CLIPRGN_H_
8 #define CORE_FXGE_CFX_CLIPRGN_H_
9 
10 #include "core/fxcrt/fx_coordinates.h"
11 #include "core/fxcrt/retain_ptr.h"
12 
13 class CFX_DIBitmap;
14 
15 class CFX_ClipRgn {
16  public:
17   enum ClipType { RectI, MaskF };
18 
19   CFX_ClipRgn(int device_width, int device_height);
20   CFX_ClipRgn(const CFX_ClipRgn& src);
21   ~CFX_ClipRgn();
22 
GetType()23   ClipType GetType() const { return m_Type; }
GetBox()24   const FX_RECT& GetBox() const { return m_Box; }
GetMask()25   RetainPtr<CFX_DIBitmap> GetMask() const { return m_Mask; }
26 
27   void Reset(const FX_RECT& rect);
28   void IntersectRect(const FX_RECT& rect);
29   void IntersectMaskF(int left, int top, const RetainPtr<CFX_DIBitmap>& Mask);
30 
31  private:
32   void IntersectMaskRect(FX_RECT rect,
33                          FX_RECT mask_box,
34                          const RetainPtr<CFX_DIBitmap>& Mask);
35 
36   ClipType m_Type;
37   FX_RECT m_Box;
38   RetainPtr<CFX_DIBitmap> m_Mask;
39 };
40 
41 #endif  // CORE_FXGE_CFX_CLIPRGN_H_
42