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diff --git a/core/include/fpdfapi/cpdf_dictionary.h b/core/include/fpdfapi/cpdf_dictionary.h
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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_DICTIONARY_H_
+#define CORE_INCLUDE_FPDFAPI_CPDF_DICTIONARY_H_
+
+#include <map>
+
+#include "core/include/fpdfapi/cpdf_object.h"
+#include "core/include/fxcrt/fx_coordinates.h"
+#include "core/include/fxcrt/fx_string.h"
+
+class CPDF_IndirectObjectHolder;
+
+class CPDF_Dictionary : public CPDF_Object {
+ public:
+ using iterator = std::map<CFX_ByteString, CPDF_Object*>::iterator;
+ using const_iterator = std::map<CFX_ByteString, CPDF_Object*>::const_iterator;
+
+ CPDF_Dictionary();
+
+ // CPDF_Object.
+ Type GetType() const override;
+ CPDF_Object* Clone(FX_BOOL bDirect = FALSE) const override;
+ 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;
+ CPDF_Object* GetElementValue(const CFX_ByteStringC& key) const;
+ CFX_ByteString GetStringBy(const CFX_ByteStringC& key) const;
+ CFX_ByteStringC GetConstStringBy(const CFX_ByteStringC& key) const;
+ CFX_ByteString GetStringBy(const CFX_ByteStringC& key,
+ const CFX_ByteStringC& default_str) const;
+ CFX_ByteStringC GetConstStringBy(const CFX_ByteStringC& key,
+ const CFX_ByteStringC& default_str) const;
+ CFX_WideString GetUnicodeTextBy(const CFX_ByteStringC& key) const;
+ int GetIntegerBy(const CFX_ByteStringC& key) const;
+ int GetIntegerBy(const CFX_ByteStringC& key, int default_int) const;
+ FX_BOOL GetBooleanBy(const CFX_ByteStringC& key,
+ FX_BOOL bDefault = FALSE) const;
+ FX_FLOAT GetNumberBy(const CFX_ByteStringC& key) const;
+ CPDF_Dictionary* GetDictBy(const CFX_ByteStringC& key) const;
+ CPDF_Stream* GetStreamBy(const CFX_ByteStringC& key) const;
+ CPDF_Array* GetArrayBy(const CFX_ByteStringC& key) const;
+ CFX_FloatRect GetRectBy(const CFX_ByteStringC& key) const;
+ CFX_Matrix GetMatrixBy(const CFX_ByteStringC& key) const;
+ FX_FLOAT GetFloatBy(const CFX_ByteStringC& key) const {
+ return GetNumberBy(key);
+ }
+
+ FX_BOOL KeyExist(const CFX_ByteStringC& key) const;
+ bool IsSignatureDict() const;
+
+ // Set* functions invalidate iterators for the element with the key |key|.
+ void SetAt(const CFX_ByteStringC& key, CPDF_Object* pObj);
+ void SetAtName(const CFX_ByteStringC& key, const CFX_ByteString& name);
+ void SetAtString(const CFX_ByteStringC& key, const CFX_ByteString& str);
+ void SetAtInteger(const CFX_ByteStringC& key, int i);
+ void SetAtNumber(const CFX_ByteStringC& key, FX_FLOAT f);
+ void SetAtReference(const CFX_ByteStringC& key,
+ CPDF_IndirectObjectHolder* pDoc,
+ FX_DWORD objnum);
+ void SetAtReference(const CFX_ByteStringC& key,
+ CPDF_IndirectObjectHolder* pDoc,
+ CPDF_Object* obj) {
+ SetAtReference(key, pDoc, obj->GetObjNum());
+ }
+ void SetAtRect(const CFX_ByteStringC& key, const CFX_FloatRect& rect);
+ void SetAtMatrix(const CFX_ByteStringC& key, const CFX_Matrix& matrix);
+ void SetAtBoolean(const CFX_ByteStringC& key, FX_BOOL bValue);
+
+ void AddReference(const CFX_ByteStringC& key,
+ CPDF_IndirectObjectHolder* pDoc,
+ FX_DWORD objnum);
+
+ // Invalidates iterators for the element with the key |key|.
+ void RemoveAt(const CFX_ByteStringC& key);
+
+ // Invalidates iterators for the element with the key |oldkey|.
+ void ReplaceKey(const CFX_ByteStringC& oldkey, const CFX_ByteStringC& newkey);
+
+ iterator begin() { return m_Map.begin(); }
+ iterator end() { return m_Map.end(); }
+ const_iterator begin() const { return m_Map.begin(); }
+ const_iterator end() const { return m_Map.end(); }
+
+ protected:
+ ~CPDF_Dictionary() override;
+
+ std::map<CFX_ByteString, CPDF_Object*> m_Map;
+};
+
+#endif // CORE_INCLUDE_FPDFAPI_CPDF_DICTIONARY_H_