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+// Copyright 2014 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 FPDFSDK_FPDFXFA_FPDFXFA_PAGE_H_
+#define FPDFSDK_FPDFXFA_FPDFXFA_PAGE_H_
+
+#include <memory>
+
+#include "core/fxcrt/fx_system.h"
+
+class CFX_Matrix;
+class CPDFXFA_Document;
+class CPDF_Dictionary;
+class CPDF_Page;
+class CXFA_FFPageView;
+
+class CPDFXFA_Page {
+ public:
+ CPDFXFA_Page(CPDFXFA_Document* pDoc, int page_index);
+
+ void Retain() { m_iRef++; }
+ void Release() {
+ if (--m_iRef <= 0)
+ delete this;
+ }
+
+ FX_BOOL LoadPage();
+ FX_BOOL LoadPDFPage(CPDF_Dictionary* pageDict);
+ CPDFXFA_Document* GetDocument() const { return m_pDocument; }
+ int GetPageIndex() const { return m_iPageIndex; }
+ CPDF_Page* GetPDFPage() const { return m_pPDFPage.get(); }
+ CXFA_FFPageView* GetXFAPageView() const { return m_pXFAPageView; }
+
+ void SetXFAPageView(CXFA_FFPageView* pPageView) {
+ m_pXFAPageView = pPageView;
+ }
+
+ FX_FLOAT GetPageWidth() const;
+ FX_FLOAT GetPageHeight() const;
+
+ void DeviceToPage(int start_x,
+ int start_y,
+ int size_x,
+ int size_y,
+ int rotate,
+ int device_x,
+ int device_y,
+ double* page_x,
+ double* page_y);
+ void PageToDevice(int start_x,
+ int start_y,
+ int size_x,
+ int size_y,
+ int rotate,
+ double page_x,
+ double page_y,
+ int* device_x,
+ int* device_y);
+
+ void GetDisplayMatrix(CFX_Matrix& matrix,
+ int xPos,
+ int yPos,
+ int xSize,
+ int ySize,
+ int iRotate) const;
+
+ protected:
+ // Refcounted class.
+ ~CPDFXFA_Page();
+
+ FX_BOOL LoadPDFPage();
+ FX_BOOL LoadXFAPageView();
+
+ private:
+ std::unique_ptr<CPDF_Page> m_pPDFPage;
+ CXFA_FFPageView* m_pXFAPageView;
+ CPDFXFA_Document* const m_pDocument;
+ const int m_iPageIndex;
+ int m_iRef;
+};
+
+#endif // FPDFSDK_FPDFXFA_FPDFXFA_PAGE_H_