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_FPDFAPI_PARSER_CPDF_STRING_H_ 8 #define CORE_FPDFAPI_PARSER_CPDF_STRING_H_ 9 10 #include <memory> 11 12 #include "core/fpdfapi/parser/cpdf_object.h" 13 #include "core/fxcrt/fx_string.h" 14 #include "core/fxcrt/fx_system.h" 15 #include "core/fxcrt/string_pool_template.h" 16 #include "core/fxcrt/weak_ptr.h" 17 18 class CPDF_String final : public CPDF_Object { 19 public: 20 template <typename T, typename... Args> 21 friend RetainPtr<T> pdfium::MakeRetain(Args&&... args); 22 23 // CPDF_Object: 24 Type GetType() const override; 25 RetainPtr<CPDF_Object> Clone() const override; 26 ByteString GetString() const override; 27 WideString GetUnicodeText() const override; 28 void SetString(const ByteString& str) override; 29 bool IsString() const override; 30 CPDF_String* AsString() override; 31 const CPDF_String* AsString() const override; 32 bool WriteTo(IFX_ArchiveStream* archive, 33 const CPDF_Encryptor* encryptor) const override; 34 IsHex()35 bool IsHex() const { return m_bHex; } 36 37 private: 38 CPDF_String(); 39 CPDF_String(WeakPtr<ByteStringPool> pPool, const ByteString& str, bool bHex); 40 CPDF_String(WeakPtr<ByteStringPool> pPool, const WideString& str); 41 ~CPDF_String() override; 42 43 ByteString m_String; 44 bool m_bHex = false; 45 }; 46 ToString(CPDF_Object * obj)47inline CPDF_String* ToString(CPDF_Object* obj) { 48 return obj ? obj->AsString() : nullptr; 49 } 50 ToString(const CPDF_Object * obj)51inline const CPDF_String* ToString(const CPDF_Object* obj) { 52 return obj ? obj->AsString() : nullptr; 53 } 54 55 #endif // CORE_FPDFAPI_PARSER_CPDF_STRING_H_ 56