| // 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_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_REFERENCE_H_ |
| #define CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_REFERENCE_H_ |
| |
| #include "core/fpdfapi/fpdf_parser/include/cpdf_object.h" |
| |
| class CPDF_IndirectObjectHolder; |
| |
| class CPDF_Reference : public CPDF_Object { |
| public: |
| CPDF_Reference(CPDF_IndirectObjectHolder* pDoc, int objnum); |
| |
| // CPDF_Object. |
| Type GetType() const override; |
| CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override; |
| CPDF_Object* GetDirect() const override; |
| CFX_ByteString GetString() const override; |
| FX_FLOAT GetNumber() const override; |
| int GetInteger() const override; |
| CPDF_Dictionary* GetDict() const override; |
| |
| // TODO(weili): check whether GetUnicodeText() and GetArray() are needed. |
| bool IsReference() const override; |
| CPDF_Reference* AsReference() override; |
| const CPDF_Reference* AsReference() const override; |
| |
| CPDF_IndirectObjectHolder* GetObjList() const { return m_pObjList; } |
| uint32_t GetRefObjNum() const { return m_RefObjNum; } |
| |
| void SetRef(CPDF_IndirectObjectHolder* pDoc, uint32_t objnum); |
| |
| protected: |
| ~CPDF_Reference() override; |
| CPDF_Object* SafeGetDirect() const { |
| CPDF_Object* obj = GetDirect(); |
| if (!obj || obj->IsReference()) |
| return nullptr; |
| return obj; |
| } |
| |
| CPDF_IndirectObjectHolder* m_pObjList; |
| uint32_t m_RefObjNum; |
| }; |
| |
| #endif // CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_REFERENCE_H_ |