cfx_cliprgn.h

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// Copyright 2016 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
#ifndef CORE_FXGE_CFX_CLIPRGN_H_
#define CORE_FXGE_CFX_CLIPRGN_H_
 
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/retain_ptr.h"
 
class CFX_DIBitmap;
 
class CFX_ClipRgn {
 public:
  enum ClipType : bool { kRectI, kMaskF };
 
  CFX_ClipRgn(int device_width, int device_height);
  CFX_ClipRgn(const CFX_ClipRgn& src);
  ~CFX_ClipRgn();
 
  ClipType GetType() const { return m_Type; }
  const FX_RECT& GetBox() const { return m_Box; }
  RetainPtr<CFX_DIBitmap> GetMask() const { return m_Mask; }
 
  void IntersectRect(const FX_RECT& rect);
  void IntersectMaskF(int left, int top, RetainPtr<CFX_DIBitmap> Mask);
 
 private:
  void IntersectMaskRect(FX_RECT rect,
                         FX_RECT mask_rect,
                         RetainPtr<CFX_DIBitmap> pOldMask);
 
  ClipType m_Type = kRectI;
  FX_RECT m_Box;
  RetainPtr<CFX_DIBitmap> m_Mask;
};
 
#endif  // CORE_FXGE_CFX_CLIPRGN_H_