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 // Created on: 2007-05-29
 // Created by: Vlad Romashko
 // Copyright (c) 2007-2014 OPEN CASCADE SAS
 //
 // This file is part of Open CASCADE Technology software library.
 //
 // This library is free software; you can redistribute it and/or modify it under
 // the terms of the GNU Lesser General Public License version 2.1 as published
 // by the Free Software Foundation, with special exception defined in the file
 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
 // distribution for complete text of the license and disclaimer of any warranty.
 //
 // Alternatively, this file may be used under the terms of Open CASCADE
 // commercial license or contractual agreement.
 
 #ifndef _TDataStd_NamedData_HeaderFile
 #define _TDataStd_NamedData_HeaderFile
 
 #include <TDF_Attribute.hxx>
 #include <TColStd_DataMapOfStringInteger.hxx>
 #include <TDataStd_DataMapOfStringReal.hxx>
 #include <TDataStd_DataMapOfStringString.hxx>
 #include <TDataStd_DataMapOfStringByte.hxx>
 #include <TDataStd_DataMapOfStringHArray1OfInteger.hxx>
 #include <TDataStd_DataMapOfStringHArray1OfReal.hxx>
 
 class TDataStd_HDataMapOfStringInteger;
 class TDataStd_HDataMapOfStringReal;
 class TDataStd_HDataMapOfStringString;
 class TDataStd_HDataMapOfStringByte;
 class TDataStd_HDataMapOfStringHArray1OfInteger;
 class TDataStd_HDataMapOfStringHArray1OfReal;
 class TCollection_ExtendedString;
 
 class TDataStd_NamedData;
 DEFINE_STANDARD_HANDLE(TDataStd_NamedData, TDF_Attribute)
 
 //! Contains a named data.
 class TDataStd_NamedData : public TDF_Attribute
 {
 public:
 
   //! Returns the ID of the named data attribute.
   Standard_EXPORT static const Standard_GUID& GetID();
 
   //! Finds or creates a named data attribute.
   Standard_EXPORT static Handle(TDataStd_NamedData) Set (const TDF_Label& label);
 
 public:
 
   //! Empty constructor.
   Standard_EXPORT TDataStd_NamedData();
 
   //! Returns true if at least one named integer value is kept in the attribute.
   Standard_EXPORT Standard_Boolean HasIntegers() const;
 
   //! Returns true if the attribute contains specified by Name
   //! integer value.
   Standard_EXPORT Standard_Boolean HasInteger (const TCollection_ExtendedString& theName) const;
 
   //! Returns the integer value specified by the Name.
   //! It returns 0 if internal map doesn't contain the specified
   //! integer (use HasInteger() to check before).
   Standard_EXPORT Standard_Integer GetInteger (const TCollection_ExtendedString& theName);
 
   //! Defines a named integer.
   //! If the integer already exists, it changes its value to <theInteger>.
   Standard_EXPORT void SetInteger (const TCollection_ExtendedString& theName, const Standard_Integer theInteger);
 
   //! Returns the internal container of named integers.
   Standard_EXPORT const TColStd_DataMapOfStringInteger& GetIntegersContainer();
 
   //! Replace the container content by new content of the <theIntegers>.
   Standard_EXPORT void ChangeIntegers (const TColStd_DataMapOfStringInteger& theIntegers);
 
   //! Returns true if at least one named real value is kept in the attribute.
   Standard_EXPORT Standard_Boolean HasReals() const;
 
   //! Returns true if the attribute contains a real specified by Name.
   Standard_EXPORT Standard_Boolean HasReal (const TCollection_ExtendedString& theName) const;
 
   //! Returns the named real.
   //! It returns 0.0 if there is no such a named real
   //! (use HasReal()).
   Standard_EXPORT Standard_Real GetReal (const TCollection_ExtendedString& theName);
 
   //! Defines a named real.
   //! If the real already exists, it changes its value to <theReal>.
   Standard_EXPORT void SetReal (const TCollection_ExtendedString& theName, const Standard_Real theReal);
 
   //! Returns the internal container of named reals.
   Standard_EXPORT const TDataStd_DataMapOfStringReal& GetRealsContainer();
 
   //! Replace the container content by new content of the <theReals>.
   Standard_EXPORT void ChangeReals (const TDataStd_DataMapOfStringReal& theReals);
 
   //! Returns true if there are some named strings in the attribute.
   Standard_EXPORT Standard_Boolean HasStrings() const;
 
   //! Returns true if the attribute contains this named string.
   Standard_EXPORT Standard_Boolean HasString (const TCollection_ExtendedString& theName) const;
 
   //! Returns the named string.
   //! It returns an empty string if there is no such a named string
   //! (use HasString()).
   Standard_EXPORT const TCollection_ExtendedString& GetString (const TCollection_ExtendedString& theName);
 
   //! Defines a named string.
   //! If the string already exists, it changes its value to <theString>.
   Standard_EXPORT void SetString (const TCollection_ExtendedString& theName, const TCollection_ExtendedString& theString);
 
   //! Returns the internal container of named strings.
   Standard_EXPORT const TDataStd_DataMapOfStringString& GetStringsContainer();
 
   //! Replace the container content by new content of the <theStrings>.
   Standard_EXPORT void ChangeStrings (const TDataStd_DataMapOfStringString& theStrings);
 
   //! Returns true if there are some named bytes in the attribute.
   Standard_EXPORT Standard_Boolean HasBytes() const;
 
   //! Returns true if the attribute contains this named byte.
   Standard_EXPORT Standard_Boolean HasByte (const TCollection_ExtendedString& theName) const;
 
   //! Returns the named byte.
   //! It returns 0 if there is no such a named byte
   //! (use HasByte()).
   Standard_EXPORT Standard_Byte GetByte (const TCollection_ExtendedString& theName);
 
   //! Defines a named byte.
   //! If the byte already exists, it changes its value to <theByte>.
   Standard_EXPORT void SetByte (const TCollection_ExtendedString& theName, const Standard_Byte theByte);
 
   //! Returns the internal container of named bytes.
   Standard_EXPORT const TDataStd_DataMapOfStringByte& GetBytesContainer();
 
   //! Replace the container content by new content of the <theBytes>.
   Standard_EXPORT void ChangeBytes (const TDataStd_DataMapOfStringByte& theBytes);
 
   //! Returns true if there are some named arrays of integer values in the attribute.
   Standard_EXPORT Standard_Boolean HasArraysOfIntegers() const;
 
   //! Returns true if the attribute contains this named array of integer values.
   Standard_EXPORT Standard_Boolean HasArrayOfIntegers (const TCollection_ExtendedString& theName) const;
 
   //! Returns the named array of integer values.
   //! It returns a NULL Handle if there is no such a named array of integers
   //! (use HasArrayOfIntegers()).
   Standard_EXPORT const Handle(TColStd_HArray1OfInteger)& GetArrayOfIntegers (const TCollection_ExtendedString& theName);
 
   //! Defines a named array of integer values.
   //! @param theName [in] key
   //! @param theArrayOfIntegers [in] new value, overrides existing (passed array will be copied by value!)
   void SetArrayOfIntegers (const TCollection_ExtendedString& theName,
                            const Handle(TColStd_HArray1OfInteger)& theArrayOfIntegers)
   {
     Backup();
     setArrayOfIntegers (theName, theArrayOfIntegers);
   }
 
   //! Returns the internal container of named arrays of integer values.
   Standard_EXPORT const TDataStd_DataMapOfStringHArray1OfInteger& GetArraysOfIntegersContainer();
 
   //! Replace the container content by new content of the <theArraysOfIntegers>.
   Standard_EXPORT void ChangeArraysOfIntegers (const TDataStd_DataMapOfStringHArray1OfInteger& theArraysOfIntegers);
 
   //! Returns true if there are some named arrays of real values in the attribute.
   Standard_EXPORT Standard_Boolean HasArraysOfReals() const;
 
   //! Returns true if the attribute contains this named array of real values.
   Standard_EXPORT Standard_Boolean HasArrayOfReals (const TCollection_ExtendedString& theName) const;
 
   //! Returns the named array of real values.
   //! It returns a NULL Handle if there is no such a named array of reals
   //! (use HasArrayOfReals()).
   Standard_EXPORT const Handle(TColStd_HArray1OfReal)& GetArrayOfReals (const TCollection_ExtendedString& theName);
 
   //! Defines a named array of real values.
   //! @param[in] theName key
   //! @param[in] theArrayOfReals new value, overrides existing (passed array will be copied by value!)
   void SetArrayOfReals (const TCollection_ExtendedString& theName,
                         const Handle(TColStd_HArray1OfReal)& theArrayOfReals)
   {
     Backup();
     setArrayOfReals (theName, theArrayOfReals);
   }
 
   //! Returns the internal container of named arrays of real values.
   Standard_EXPORT const TDataStd_DataMapOfStringHArray1OfReal& GetArraysOfRealsContainer();
 
   //! Replace the container content by new content of the <theArraysOfReals>.
   Standard_EXPORT void ChangeArraysOfReals (const TDataStd_DataMapOfStringHArray1OfReal& theArraysOfReals);
 
   //! Clear data.
   void Clear()
   {
     Backup();
     clear();
   }
 
 public: //! @name late-load deferred data interface
 
   //! Returns TRUE if some data is not loaded from deferred storage and can be loaded using LoadDeferredData().
   //!
   //! Late-load interface allows to avoid loading auxiliary data into memory until it is needed by application
   //! and also speed up reader by skipping data chunks in file.
   //! This feature requires file format having special structure, and usually implies read-only access,
   //! therefore default implementation will return FALSE here.
   //!
   //! Late-load elements require special attention to ensure data consistency,
   //! as such elements are created in undefined state (no data) and Undo/Redo mechanism will not work until deferred data being loaded.
   //!
   //! Usage scenarios:
   //! - Application displays model in read-only way.
   //!   Late-load elements are loaded temporarily on demand and immediately unloaded.
   //!     theNamedData->LoadDeferredData (true);
   //!     TCollection_AsciiString aValue = theNamedData->GetString (theKey);
   //!     theNamedData->UnloadDeferredData();
   //! - Application saves the model into another format.
   //!   All late-load elements should be loaded (at least temporary during operation).
   //! - Application modifies the model.
   //!   Late-load element should be loaded with removed link to deferred storage,
   //!   so that Undo()/Redo() will work as expected since loading.
   //!     theNamedData->LoadDeferredData (false);
   //!     theNamedData->SetString (theKey, theNewValue);
   virtual Standard_Boolean HasDeferredData() const { return false; }
 
   //! Load data from deferred storage, without calling Backup().
   //! As result, the content of the object will be overridden by data from deferred storage (which is normally read-only).
   //! @param theToKeepDeferred [in] when TRUE, the link to deferred storage will be preserved
   //!                               so that it will be possible calling UnloadDeferredData() afterwards for releasing memory
   //! @return FALSE if deferred storage is unavailable or deferred data has been already loaded
   virtual Standard_Boolean LoadDeferredData (Standard_Boolean theToKeepDeferred = false)
   {
     (void )theToKeepDeferred;
     return false;
   }
 
   //! Releases data if object has connected deferred storage, without calling Backup().
   //! WARNING! This operation does not unload modifications to deferred storage (normally it is read-only),
   //! so that modifications will be discarded (if any).
   //! @return FALSE if object has no deferred data
   virtual Standard_Boolean UnloadDeferredData() { return false; }
 
 public:
 
   //! Clear data without calling Backup().
   Standard_EXPORT void clear();
 
   //! Defines a named integer (without calling Backup).
   Standard_EXPORT void setInteger (const TCollection_ExtendedString& theName,
                                    const Standard_Integer theInteger);
 
   //! Defines a named real (without calling Backup).
   Standard_EXPORT void setReal (const TCollection_ExtendedString& theName,
                                 const Standard_Real theReal);
 
   //! Defines a named string (without calling Backup).
   Standard_EXPORT void setString (const TCollection_ExtendedString& theName,
                                   const TCollection_ExtendedString& theString);
 
   //! Defines a named byte (without calling Backup).
   Standard_EXPORT void setByte (const TCollection_ExtendedString& theName,
                                 const Standard_Byte theByte);
 
   //! Defines a named array of integer values (without calling Backup).
   Standard_EXPORT void setArrayOfIntegers (const TCollection_ExtendedString& theName,
                                            const Handle(TColStd_HArray1OfInteger)& theArrayOfIntegers);
 
   //! Defines a named array of real values (without calling Backup).
   Standard_EXPORT void setArrayOfReals (const TCollection_ExtendedString& theName,
                                         const Handle(TColStd_HArray1OfReal)& theArrayOfReals);
 
 public: //! @name TDF_Attribute interface
 
   Standard_EXPORT virtual const Standard_GUID& ID() const Standard_OVERRIDE;
 
   Standard_EXPORT virtual void Restore (const Handle(TDF_Attribute)& With) Standard_OVERRIDE;
 
   Standard_EXPORT virtual Handle(TDF_Attribute) NewEmpty() const Standard_OVERRIDE;
 
   Standard_EXPORT virtual void Paste (const Handle(TDF_Attribute)& Into, const Handle(TDF_RelocationTable)& RT) const Standard_OVERRIDE;
 
   Standard_EXPORT virtual Standard_OStream& Dump (Standard_OStream& anOS) const Standard_OVERRIDE;
 
   //! Dumps the content of me into the stream
   Standard_EXPORT virtual void DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth = -1) const Standard_OVERRIDE;
 
   DEFINE_STANDARD_RTTIEXT(TDataStd_NamedData,TDF_Attribute)
 
 protected:
 
   Handle(TDataStd_HDataMapOfStringInteger) myIntegers;
   Handle(TDataStd_HDataMapOfStringReal) myReals;
   Handle(TDataStd_HDataMapOfStringString) myStrings;
   Handle(TDataStd_HDataMapOfStringByte) myBytes;
   Handle(TDataStd_HDataMapOfStringHArray1OfInteger) myArraysOfIntegers;
   Handle(TDataStd_HDataMapOfStringHArray1OfReal) myArraysOfReals;
 
 };
 
 #endif // _TDataStd_NamedData_HeaderFile

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