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// 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_INCLUDE_FPDFAPI_CPDF_OBJECT_H_
#define CORE_INCLUDE_FPDFAPI_CPDF_OBJECT_H_
#include "core/include/fxcrt/fx_string.h"
#include "core/include/fxcrt/fx_system.h"
class CPDF_Array;
class CPDF_Boolean;
class CPDF_Dictionary;
class CPDF_Name;
class CPDF_Null;
class CPDF_Number;
class CPDF_Reference;
class CPDF_Stream;
class CPDF_String;
class CPDF_Object {
public:
enum Type {
BOOLEAN = 1,
NUMBER,
STRING,
NAME,
ARRAY,
DICTIONARY,
STREAM,
NULLOBJ,
REFERENCE
};
virtual Type GetType() const = 0;
FX_DWORD GetObjNum() const { return m_ObjNum; }
FX_DWORD GetGenNum() const { return m_GenNum; }
virtual CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const = 0;
virtual CPDF_Object* GetDirect() const;
FX_BOOL IsModified() const { return FALSE; }
void Release();
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();
void Destroy() { delete this; }
FX_DWORD m_ObjNum;
FX_DWORD m_GenNum;
friend class CPDF_IndirectObjectHolder;
friend class CPDF_Parser;
private:
CPDF_Object(const CPDF_Object& src) {}
};
inline CPDF_Boolean* ToBoolean(CPDF_Object* obj) {
return obj ? obj->AsBoolean() : nullptr;
}
inline const CPDF_Boolean* ToBoolean(const CPDF_Object* obj) {
return obj ? obj->AsBoolean() : nullptr;
}
inline CPDF_Number* ToNumber(CPDF_Object* obj) {
return obj ? obj->AsNumber() : nullptr;
}
inline const CPDF_Number* ToNumber(const CPDF_Object* obj) {
return obj ? obj->AsNumber() : nullptr;
}
inline CPDF_String* ToString(CPDF_Object* obj) {
return obj ? obj->AsString() : nullptr;
}
inline const CPDF_String* ToString(const CPDF_Object* obj) {
return obj ? obj->AsString() : nullptr;
}
inline CPDF_Name* ToName(CPDF_Object* obj) {
return obj ? obj->AsName() : nullptr;
}
inline const CPDF_Name* ToName(const CPDF_Object* obj) {
return obj ? obj->AsName() : nullptr;
}
inline CPDF_Array* ToArray(CPDF_Object* obj) {
return obj ? obj->AsArray() : nullptr;
}
inline const CPDF_Array* ToArray(const CPDF_Object* obj) {
return obj ? obj->AsArray() : nullptr;
}
inline CPDF_Dictionary* ToDictionary(CPDF_Object* obj) {
return obj ? obj->AsDictionary() : nullptr;
}
inline const CPDF_Dictionary* ToDictionary(const CPDF_Object* obj) {
return obj ? obj->AsDictionary() : nullptr;
}
inline CPDF_Reference* ToReference(CPDF_Object* obj) {
return obj ? obj->AsReference() : nullptr;
}
inline const CPDF_Reference* ToReference(const CPDF_Object* obj) {
return obj ? obj->AsReference() : nullptr;
}
inline CPDF_Stream* ToStream(CPDF_Object* obj) {
return obj ? obj->AsStream() : nullptr;
}
inline const CPDF_Stream* ToStream(const CPDF_Object* obj) {
return obj ? obj->AsStream() : nullptr;
}
#endif // CORE_INCLUDE_FPDFAPI_CPDF_OBJECT_H_
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