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diff --git a/xfa/fde/fde_render.h b/xfa/fde/fde_render.h
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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 XFA_FDE_FDE_RENDER_H_
+#define XFA_FDE_FDE_RENDER_H_
+
+#include "core/include/fxcrt/fx_coordinates.h"
+#include "xfa/fde/fde_visualset.h"
+
+class IFDE_RenderDevice;
+
+void FDE_GetPageMatrix(CFX_Matrix& pageMatrix,
+ const CFX_RectF& docPageRect,
+ const CFX_Rect& devicePageRect,
+ int32_t iRotate,
+ FX_DWORD dwCoordinatesType = 0);
+enum FDE_RENDERSTATUS {
+ FDE_RENDERSTATUS_Reset = 0,
+ FDE_RENDERSTATUS_Paused,
+ FDE_RENDERSTATUS_Done,
+ FDE_RENDERSTATUS_Failed,
+};
+
+class IFDE_RenderContext {
+ public:
+ static IFDE_RenderContext* Create();
+ virtual ~IFDE_RenderContext() {}
+ virtual void Release() = 0;
+ virtual FX_BOOL StartRender(IFDE_RenderDevice* pRenderDevice,
+ IFDE_CanvasSet* pCanvasSet,
+ const CFX_Matrix& tmDoc2Device) = 0;
+ virtual FDE_RENDERSTATUS GetStatus() const = 0;
+ virtual FDE_RENDERSTATUS DoRender(IFX_Pause* pPause = NULL) = 0;
+ virtual void StopRender() = 0;
+};
+
+#endif // XFA_FDE_FDE_RENDER_H_