1 files changed, 42 insertions, 0 deletions
diff --git a/core/fxge/cfx_cliprgn.h b/core/fxge/cfx_cliprgn.h
new file mode 100644
index 0000000000..866af9b205
--- /dev/null
+++ b/core/fxge/cfx_cliprgn.h
@@ -0,0 +1,42 @@
+// Copyright 2016 PDFium Authors. All rights reserved.
+// 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"
+
+class CFX_DIBitmap;
+
+class CFX_ClipRgn {
+ public:
+  enum ClipType { RectI, MaskF };
+
+  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; }
+  CFX_RetainPtr<CFX_DIBitmap> GetMask() const { return m_Mask; }
+
+  void Reset(const FX_RECT& rect);
+  void IntersectRect(const FX_RECT& rect);
+  void IntersectMaskF(int left,
+                      int top,
+                      const CFX_RetainPtr<CFX_DIBitmap>& Mask);
+
+ private:
+  void IntersectMaskRect(FX_RECT rect,
+                         FX_RECT mask_box,
+                         const CFX_RetainPtr<CFX_DIBitmap>& Mask);
+
+  ClipType m_Type;
+  FX_RECT m_Box;
+  CFX_RetainPtr<CFX_DIBitmap> m_Mask;
+};
+
+#endif  // CORE_FXGE_CFX_CLIPRGN_H_