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1 // Copyright 2016 PDFium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
6 | |
7 #ifndef CORE_INCLUDE_FPDFAPI_CPDF_REFERENCE_H_ | |
8 #define CORE_INCLUDE_FPDFAPI_CPDF_REFERENCE_H_ | |
9 | |
10 #include "core/include/fpdfapi/cpdf_object.h" | |
11 | |
12 class CPDF_IndirectObjectHolder; | |
13 | |
14 class CPDF_Reference : public CPDF_Object { | |
15 public: | |
16 CPDF_Reference(CPDF_IndirectObjectHolder* pDoc, int objnum) | |
17 : m_pObjList(pDoc), m_RefObjNum(objnum) {} | |
dsinclair
2016/03/10 21:23:44
ditto
Tom Sepez
2016/03/10 22:05:19
Done.
| |
18 | |
19 // CPDF_Object. | |
20 Type GetType() const override; | |
21 CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override; | |
22 CPDF_Object* GetDirect() const override; | |
23 CFX_ByteString GetString() const override; | |
24 CFX_ByteStringC GetConstString() const override; | |
25 FX_FLOAT GetNumber() const override; | |
26 int GetInteger() const override; | |
27 CPDF_Dictionary* GetDict() const override; | |
28 | |
29 // TODO(weili): check whether GetUnicodeText() and GetArray() are needed. | |
30 bool IsReference() const override; | |
31 CPDF_Reference* AsReference() override; | |
32 const CPDF_Reference* AsReference() const override; | |
33 | |
34 CPDF_IndirectObjectHolder* GetObjList() const { return m_pObjList; } | |
35 FX_DWORD GetRefObjNum() const { return m_RefObjNum; } | |
36 | |
37 void SetRef(CPDF_IndirectObjectHolder* pDoc, FX_DWORD objnum); | |
38 | |
39 protected: | |
40 ~CPDF_Reference() override; | |
41 CPDF_Object* SafeGetDirect() const { | |
42 CPDF_Object* obj = GetDirect(); | |
43 if (!obj || obj->IsReference()) | |
44 return nullptr; | |
45 return obj; | |
46 } | |
47 | |
48 CPDF_IndirectObjectHolder* m_pObjList; | |
49 FX_DWORD m_RefObjNum; | |
50 }; | |
51 | |
52 #endif // CORE_INCLUDE_FPDFAPI_CPDF_REFERENCE_H_ | |
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