diff options
Diffstat (limited to 'core/include/fpdfapi/fpdf_objects.h')
| -rw-r--r-- | core/include/fpdfapi/fpdf_objects.h | 258 |
1 files changed, 105 insertions, 153 deletions
diff --git a/core/include/fpdfapi/fpdf_objects.h b/core/include/fpdfapi/fpdf_objects.h index 238f57de59..6047e36b94 100644 --- a/core/include/fpdfapi/fpdf_objects.h +++ b/core/include/fpdfapi/fpdf_objects.h @@ -46,52 +46,50 @@ class CPDF_Object { FX_DWORD GetGenNum() const { return m_GenNum; } virtual CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const = 0; - virtual CPDF_Object* GetDirect() const { - return const_cast<CPDF_Object*>(this); - } + virtual CPDF_Object* GetDirect() const; FX_BOOL IsModified() const { return FALSE; } void Release(); - virtual CFX_ByteString GetString() const { return CFX_ByteString(); } - virtual CFX_ByteStringC GetConstString() const { return CFX_ByteStringC(); } - virtual CFX_WideString GetUnicodeText() const { return CFX_WideString(); } - virtual FX_FLOAT GetNumber() const { return 0; } - virtual int GetInteger() const { return 0; } - virtual CPDF_Dictionary* GetDict() const { return nullptr; } - virtual CPDF_Array* GetArray() const { return nullptr; } - - virtual void SetString(const CFX_ByteString& str) { ASSERT(FALSE); } - - virtual bool IsArray() const { return false; } - virtual bool IsBoolean() const { return false; } - virtual bool IsDictionary() const { return false; } - virtual bool IsName() const { return false; } - virtual bool IsNumber() const { return false; } - virtual bool IsReference() const { return false; } - virtual bool IsStream() const { return false; } - virtual bool IsString() const { return false; } - - virtual CPDF_Array* AsArray() { return nullptr; } - virtual const CPDF_Array* AsArray() const { return nullptr; } - virtual CPDF_Boolean* AsBoolean() { return nullptr; } - virtual const CPDF_Boolean* AsBoolean() const { return nullptr; } - virtual CPDF_Dictionary* AsDictionary() { return nullptr; } - virtual const CPDF_Dictionary* AsDictionary() const { return nullptr; } - virtual CPDF_Name* AsName() { return nullptr; } - virtual const CPDF_Name* AsName() const { return nullptr; } - virtual CPDF_Number* AsNumber() { return nullptr; } - virtual const CPDF_Number* AsNumber() const { return nullptr; } - virtual CPDF_Reference* AsReference() { return nullptr; } - virtual const CPDF_Reference* AsReference() const { return nullptr; } - virtual CPDF_Stream* AsStream() { return nullptr; } - virtual const CPDF_Stream* AsStream() const { return nullptr; } - virtual CPDF_String* AsString() { return nullptr; } - virtual const CPDF_String* AsString() const { return nullptr; } + virtual CFX_ByteString GetString() const; + virtual CFX_ByteStringC GetConstString() const; + virtual CFX_WideString GetUnicodeText() const; + virtual FX_FLOAT GetNumber() const; + virtual int GetInteger() const; + virtual CPDF_Dictionary* GetDict() const; + virtual CPDF_Array* GetArray() const; + + virtual void SetString(const CFX_ByteString& str); + + virtual bool IsArray() const; + virtual bool IsBoolean() const; + virtual bool IsDictionary() const; + virtual bool IsName() const; + virtual bool IsNumber() const; + virtual bool IsReference() const; + virtual bool IsStream() const; + virtual bool IsString() const; + + virtual CPDF_Array* AsArray(); + virtual const CPDF_Array* AsArray() const; + virtual CPDF_Boolean* AsBoolean(); + virtual const CPDF_Boolean* AsBoolean() const; + virtual CPDF_Dictionary* AsDictionary(); + virtual const CPDF_Dictionary* AsDictionary() const; + virtual CPDF_Name* AsName(); + virtual const CPDF_Name* AsName() const; + virtual CPDF_Number* AsNumber(); + virtual const CPDF_Number* AsNumber() const; + virtual CPDF_Reference* AsReference(); + virtual const CPDF_Reference* AsReference() const; + virtual CPDF_Stream* AsStream(); + virtual const CPDF_Stream* AsStream() const; + virtual CPDF_String* AsString(); + virtual const CPDF_String* AsString() const; protected: CPDF_Object() : m_ObjNum(0), m_GenNum(0) {} - virtual ~CPDF_Object() {} + virtual ~CPDF_Object(); void Destroy() { delete this; } FX_DWORD m_ObjNum; @@ -111,23 +109,17 @@ class CPDF_Boolean : public CPDF_Object { explicit CPDF_Boolean(FX_BOOL value) : m_bValue(value) {} // CPDF_Object. - Type GetType() const override { return BOOLEAN; } - CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override { - return new CPDF_Boolean(m_bValue); - } - CFX_ByteString GetString() const override { - return m_bValue ? "true" : "false"; - } - int GetInteger() const override { return m_bValue; } - void SetString(const CFX_ByteString& str) override { - m_bValue = (str == "true"); - } - bool IsBoolean() const override { return true; } - CPDF_Boolean* AsBoolean() override { return this; } - const CPDF_Boolean* AsBoolean() const override { return this; } + Type GetType() const override; + CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override; + CFX_ByteString GetString() const override; + int GetInteger() const override; + void SetString(const CFX_ByteString& str) override; + bool IsBoolean() const override; + CPDF_Boolean* AsBoolean() override; + const CPDF_Boolean* AsBoolean() const override; protected: - ~CPDF_Boolean() {} + ~CPDF_Boolean() override; FX_BOOL m_bValue; }; @@ -148,32 +140,24 @@ class CPDF_Number : public CPDF_Object { explicit CPDF_Number(const CFX_ByteStringC& str); // CPDF_Object. - Type GetType() const override { return NUMBER; } - CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override { - return m_bInteger ? new CPDF_Number(m_Integer) : new CPDF_Number(m_Float); - } + Type GetType() const override; + CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override; CFX_ByteString GetString() const override; - FX_FLOAT GetNumber() const override { - return m_bInteger ? static_cast<FX_FLOAT>(m_Integer) : m_Float; - } - int GetInteger() const override { - return m_bInteger ? m_Integer : static_cast<int>(m_Float); - } + FX_FLOAT GetNumber() const override; + int GetInteger() const override; void SetString(const CFX_ByteString& str) override; - bool IsNumber() const override { return true; } - CPDF_Number* AsNumber() override { return this; } - const CPDF_Number* AsNumber() const override { return this; } + bool IsNumber() const override; + CPDF_Number* AsNumber() override; + const CPDF_Number* AsNumber() const override; FX_BOOL IsInteger() { return m_bInteger; } protected: - ~CPDF_Number() {} + ~CPDF_Number() override; FX_BOOL m_bInteger; - union { int m_Integer; - FX_FLOAT m_Float; }; }; @@ -194,24 +178,20 @@ class CPDF_String : public CPDF_Object { explicit CPDF_String(const CFX_WideString& str); // CPDF_Object. - Type GetType() const override { return STRING; } - CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override { - return new CPDF_String(m_String, m_bHex); - } - CFX_ByteString GetString() const override { return m_String; } - CFX_ByteStringC GetConstString() const override { - return CFX_ByteStringC(m_String); - } + Type GetType() const override; + CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override; + CFX_ByteString GetString() const override; + CFX_ByteStringC GetConstString() const override; CFX_WideString GetUnicodeText() const override; - void SetString(const CFX_ByteString& str) override { m_String = str; } - bool IsString() const override { return true; } - CPDF_String* AsString() override { return this; } - const CPDF_String* AsString() const override { return this; } + void SetString(const CFX_ByteString& str) override; + bool IsString() const override; + CPDF_String* AsString() override; + const CPDF_String* AsString() const override; FX_BOOL IsHex() const { return m_bHex; } protected: - ~CPDF_String() {} + ~CPDF_String() override; CFX_ByteString m_String; FX_BOOL m_bHex; @@ -232,22 +212,18 @@ class CPDF_Name : public CPDF_Object { explicit CPDF_Name(const FX_CHAR* str) : m_Name(str) {} // CPDF_Object. - Type GetType() const override { return NAME; } - CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override { - return new CPDF_Name(m_Name); - } - CFX_ByteString GetString() const override { return m_Name; } - CFX_ByteStringC GetConstString() const override { - return CFX_ByteStringC(m_Name); - } + Type GetType() const override; + CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override; + CFX_ByteString GetString() const override; + CFX_ByteStringC GetConstString() const override; CFX_WideString GetUnicodeText() const override; - void SetString(const CFX_ByteString& str) override { m_Name = str; } - bool IsName() const override { return true; } - CPDF_Name* AsName() override { return this; } - const CPDF_Name* AsName() const override { return this; } + void SetString(const CFX_ByteString& str) override; + bool IsName() const override; + CPDF_Name* AsName() override; + const CPDF_Name* AsName() const override; protected: - ~CPDF_Name() {} + ~CPDF_Name() override; CFX_ByteString m_Name; }; @@ -262,19 +238,15 @@ inline const CPDF_Name* ToName(const CPDF_Object* obj) { class CPDF_Array : public CPDF_Object { public: - CPDF_Array() {} + CPDF_Array(); // CPDF_Object. - Type GetType() const override { return ARRAY; } + Type GetType() const override; CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override; - CPDF_Array* GetArray() const override { - // The method should be made non-const if we want to not be const. - // See bug #234. - return const_cast<CPDF_Array*>(this); - } - bool IsArray() const override { return true; } - CPDF_Array* AsArray() override { return this; } - const CPDF_Array* AsArray() const override { return this; } + CPDF_Array* GetArray() const override; + bool IsArray() const override; + CPDF_Array* AsArray() override; + const CPDF_Array* AsArray() const override; FX_DWORD GetCount() const { return m_Objects.GetSize(); } CPDF_Object* GetElement(FX_DWORD index) const; @@ -309,7 +281,7 @@ class CPDF_Array : public CPDF_Object { } protected: - ~CPDF_Array(); + ~CPDF_Array() override; CFX_ArrayTemplate<CPDF_Object*> m_Objects; }; @@ -327,19 +299,15 @@ class CPDF_Dictionary : public CPDF_Object { using iterator = std::map<CFX_ByteString, CPDF_Object*>::iterator; using const_iterator = std::map<CFX_ByteString, CPDF_Object*>::const_iterator; - CPDF_Dictionary() {} + CPDF_Dictionary(); // CPDF_Object. - Type GetType() const override { return DICTIONARY; } + Type GetType() const override; CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override; - CPDF_Dictionary* GetDict() const override { - // The method should be made non-const if we want to not be const. - // See bug #234. - return const_cast<CPDF_Dictionary*>(this); - } - bool IsDictionary() const override { return true; } - CPDF_Dictionary* AsDictionary() override { return this; } - const CPDF_Dictionary* AsDictionary() const override { return this; } + CPDF_Dictionary* GetDict() const override; + bool IsDictionary() const override; + CPDF_Dictionary* AsDictionary() override; + const CPDF_Dictionary* AsDictionary() const override; size_t GetCount() const { return m_Map.size(); } CPDF_Object* GetElement(const CFX_ByteStringC& key) const; @@ -401,7 +369,7 @@ class CPDF_Dictionary : public CPDF_Object { const_iterator end() const { return m_Map.end(); } protected: - ~CPDF_Dictionary(); + ~CPDF_Dictionary() override; std::map<CFX_ByteString, CPDF_Object*> m_Map; }; @@ -419,13 +387,13 @@ class CPDF_Stream : public CPDF_Object { CPDF_Stream(uint8_t* pData, FX_DWORD size, CPDF_Dictionary* pDict); // CPDF_Object. - Type GetType() const override { return STREAM; } + Type GetType() const override; CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override; - CPDF_Dictionary* GetDict() const override { return m_pDict; } + CPDF_Dictionary* GetDict() const override; CFX_WideString GetUnicodeText() const override; - bool IsStream() const override { return true; } - CPDF_Stream* AsStream() override { return this; } - const CPDF_Stream* AsStream() const override { return this; } + bool IsStream() const override; + CPDF_Stream* AsStream() override; + const CPDF_Stream* AsStream() const override; FX_DWORD GetRawSize() const { return m_dwSize; } uint8_t* GetRawData() const { return m_pDataBuf; } @@ -447,7 +415,7 @@ class CPDF_Stream : public CPDF_Object { protected: static const FX_DWORD kMemoryBasedGenNum = (FX_DWORD)-1; - ~CPDF_Stream(); + ~CPDF_Stream() override; void InitStreamInternal(CPDF_Dictionary* pDict); @@ -505,10 +473,8 @@ class CPDF_Null : public CPDF_Object { CPDF_Null() {} // CPDF_Object. - Type GetType() const override { return NULLOBJ; } - CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override { - return new CPDF_Null; - } + Type GetType() const override; + CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override; }; class CPDF_Reference : public CPDF_Object { @@ -517,33 +483,19 @@ class CPDF_Reference : public CPDF_Object { : m_pObjList(pDoc), m_RefObjNum(objnum) {} // CPDF_Object. - Type GetType() const override { return REFERENCE; } + Type GetType() const override; CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override; CPDF_Object* GetDirect() const override; - CFX_ByteString GetString() const override { - CPDF_Object* obj = SafeGetDirect(); - return obj ? obj->GetString() : CFX_ByteString(); - } - CFX_ByteStringC GetConstString() const override { - CPDF_Object* obj = SafeGetDirect(); - return obj ? obj->GetConstString() : CFX_ByteStringC(); - } - FX_FLOAT GetNumber() const override { - CPDF_Object* obj = SafeGetDirect(); - return obj ? obj->GetNumber() : 0; - } - int GetInteger() const override { - CPDF_Object* obj = SafeGetDirect(); - return obj ? obj->GetInteger() : 0; - } - CPDF_Dictionary* GetDict() const override { - CPDF_Object* obj = SafeGetDirect(); - return obj ? obj->GetDict() : nullptr; - } + CFX_ByteString GetString() const override; + CFX_ByteStringC GetConstString() 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 { return true; } - CPDF_Reference* AsReference() override { return this; } - const CPDF_Reference* AsReference() const override { return this; } + bool IsReference() const override; + CPDF_Reference* AsReference() override; + const CPDF_Reference* AsReference() const override; CPDF_IndirectObjectHolder* GetObjList() const { return m_pObjList; } FX_DWORD GetRefObjNum() const { return m_RefObjNum; } @@ -551,7 +503,7 @@ class CPDF_Reference : public CPDF_Object { void SetRef(CPDF_IndirectObjectHolder* pDoc, FX_DWORD objnum); protected: - ~CPDF_Reference() {} + ~CPDF_Reference() override; CPDF_Object* SafeGetDirect() const { CPDF_Object* obj = GetDirect(); if (!obj || obj->IsReference()) |