528 lines
21 KiB
C++
528 lines
21 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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//=============================================================================
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#ifndef DATAMODEL_H
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#define DATAMODEL_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "datamodel/dmattribute.h"
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#include "datamodel/idatamodel.h"
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#include "datamodel/dmelement.h"
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#include "datamodel/dmehandle.h"
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#include "tier1/uniqueid.h"
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#include "tier1/utlsymbol.h"
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#include "tier1/utllinkedlist.h"
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#include "tier1/utldict.h"
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#include "tier1/utlstring.h"
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#include "tier1/utlhandletable.h"
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#include "tier1/utlhash.h"
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#include "tier2/tier2.h"
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#include "clipboardmanager.h"
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#include "undomanager.h"
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#include "tier1/convar.h"
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#include "tier0/vprof.h"
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//-----------------------------------------------------------------------------
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// forward declarations
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//-----------------------------------------------------------------------------
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class IDmElementFramework;
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class IUndoElement;
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class CDmElement;
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enum DmHandleReleasePolicy
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{
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HR_ALWAYS,
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HR_NEVER,
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HR_IF_NOT_REFERENCED,
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};
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//-----------------------------------------------------------------------------
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// memory categories
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//-----------------------------------------------------------------------------
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enum
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{
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MEMORY_CATEGORY_OUTER,
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MEMORY_CATEGORY_ELEMENT_INTERNAL,
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MEMORY_CATEGORY_DATAMODEL,
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MEMORY_CATEGORY_REFERENCES,
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MEMORY_CATEGORY_ATTRIBUTE_TREE,
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MEMORY_CATEGORY_ATTRIBUTE_OVERHEAD,
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MEMORY_CATEGORY_ATTRIBUTE_DATA,
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MEMORY_CATEGORY_ATTRIBUTE_COUNT,
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MEMORY_CATEGORY_COUNT,
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};
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//-----------------------------------------------------------------------------
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// hash map of id->element, with the id storage optimized out
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//-----------------------------------------------------------------------------
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class CElementIdHash : public CUtlHash< DmElementHandle_t >
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{
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public:
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CElementIdHash( int nBucketCount = 0, int nGrowCount = 0, int nInitCount = 0 )
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: CUtlHash< DmElementHandle_t >( nBucketCount, nGrowCount, nInitCount, CompareFunc, KeyFunc )
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{
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}
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protected:
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typedef CUtlHash< DmElementHandle_t > BaseClass;
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static bool CompareFunc( DmElementHandle_t const& a, DmElementHandle_t const& b ) { return a == b; }
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static bool IdCompareFunc( DmElementHandle_t const& hElement, DmObjectId_t const& id )
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{
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CDmElement *pElement = g_pDataModel->GetElement( hElement );
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Assert( pElement );
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if ( !pElement )
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return false;
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return IsUniqueIdEqual( id, pElement->GetId() );
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}
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static unsigned int KeyFunc( DmElementHandle_t const& hElement )
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{
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CDmElement *pElement = g_pDataModel->GetElement( hElement );
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Assert( pElement );
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if ( !pElement )
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return 0;
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return *( unsigned int* )&pElement->GetId();
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}
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static unsigned int IdKeyFunc( DmObjectId_t const &src )
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{
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return *(unsigned int*)&src;
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}
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protected:
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bool DoFind( DmObjectId_t const &src, unsigned int *pBucket, int *pIndex )
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{
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// generate the data "key"
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unsigned int key = IdKeyFunc( src );
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// hash the "key" - get the correct hash table "bucket"
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unsigned int ndxBucket;
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if( m_bPowerOfTwo )
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{
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*pBucket = ndxBucket = ( key & m_ModMask );
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}
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else
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{
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int bucketCount = m_Buckets.Count();
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*pBucket = ndxBucket = key % bucketCount;
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}
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int ndxKeyData;
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CUtlVector< DmElementHandle_t > &bucket = m_Buckets[ndxBucket];
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int keyDataCount = bucket.Count();
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for( ndxKeyData = 0; ndxKeyData < keyDataCount; ndxKeyData++ )
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{
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if( IdCompareFunc( bucket.Element( ndxKeyData ), src ) )
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break;
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}
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if( ndxKeyData == keyDataCount )
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return false;
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*pIndex = ndxKeyData;
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return true;
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}
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public:
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UtlHashHandle_t Find( DmElementHandle_t const &src ) { return BaseClass::Find( src ); }
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UtlHashHandle_t Find( DmObjectId_t const &src )
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{
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unsigned int ndxBucket;
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int ndxKeyData;
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if ( DoFind( src, &ndxBucket, &ndxKeyData ) )
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return BuildHandle( ndxBucket, ndxKeyData );
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return InvalidHandle();
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}
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};
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//-----------------------------------------------------------------------------
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// struct to hold the set of elements in any given file
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//-----------------------------------------------------------------------------
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struct FileElementSet_t
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{
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FileElementSet_t( UtlSymId_t filename = UTL_INVAL_SYMBOL, UtlSymId_t format = UTL_INVAL_SYMBOL ) :
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m_filename( filename ), m_format( format ),
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m_hRoot( DMELEMENT_HANDLE_INVALID ),
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m_bLoaded( true ),
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m_nElements( 0 )
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{
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}
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FileElementSet_t( const FileElementSet_t& that ) : m_filename( that.m_filename ), m_format( that.m_format ), m_hRoot( DMELEMENT_HANDLE_INVALID ), m_bLoaded( that.m_bLoaded ), m_nElements( that.m_nElements )
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{
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// the only time this should be copy constructed is when passing in an empty set to the parent array
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// otherwise it could get prohibitively expensive time and memory wise
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Assert( that.m_nElements == 0 );
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}
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UtlSymId_t m_filename;
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UtlSymId_t m_format;
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CDmeCountedHandle m_hRoot;
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bool m_bLoaded;
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int m_nElements;
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};
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//-----------------------------------------------------------------------------
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// Purpose: Versionable factor for element types
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//-----------------------------------------------------------------------------
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class CDataModel : public CBaseAppSystem< IDataModel >
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{
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typedef CBaseAppSystem< IDataModel > BaseClass;
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public:
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CDataModel();
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virtual ~CDataModel();
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// External interface
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public:
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// Methods of IAppSystem
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virtual bool Connect( CreateInterfaceFn factory );
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virtual void *QueryInterface( const char *pInterfaceName );
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virtual InitReturnVal_t Init();
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virtual void Shutdown();
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// Methods of IDataModel
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virtual void AddElementFactory( const char *pClassName, IDmElementFactory *pFactory );
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virtual bool HasElementFactory( const char *pElementType ) const;
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virtual void SetDefaultElementFactory( IDmElementFactory *pFactory );
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virtual int GetFirstFactory() const;
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virtual int GetNextFactory( int index ) const;
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virtual bool IsValidFactory( int index ) const;
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virtual char const *GetFactoryName( int index ) const;
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virtual DmElementHandle_t CreateElement( UtlSymId_t typeSymbol, const char *pElementName, DmFileId_t fileid, const DmObjectId_t *pObjectID = NULL );
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virtual DmElementHandle_t CreateElement( const char *pTypeName, const char *pElementName, DmFileId_t fileid, const DmObjectId_t *pObjectID = NULL );
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virtual void DestroyElement( DmElementHandle_t hElement );
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virtual CDmElement* GetElement( DmElementHandle_t hElement ) const;
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virtual UtlSymId_t GetElementType( DmElementHandle_t hElement ) const;
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virtual const char* GetElementName( DmElementHandle_t hElement ) const;
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virtual const DmObjectId_t& GetElementId( DmElementHandle_t hElement ) const;
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virtual const char *GetAttributeNameForType( DmAttributeType_t attType ) const;
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virtual DmAttributeType_t GetAttributeTypeForName( const char *name ) const;
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virtual void AddSerializer( IDmSerializer *pSerializer );
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virtual void AddLegacyUpdater( IDmLegacyUpdater *pUpdater );
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virtual void AddFormatUpdater( IDmFormatUpdater *pUpdater );
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virtual const char* GetFormatExtension( const char *pFormatName );
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virtual const char* GetFormatDescription( const char *pFormatName );
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virtual int GetFormatCount() const;
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virtual const char * GetFormatName( int i ) const;
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virtual const char * GetDefaultEncoding( const char *pFormatName );
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virtual int GetEncodingCount() const;
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virtual const char * GetEncodingName( int i ) const;
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virtual bool IsEncodingBinary( const char *pEncodingName ) const;
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virtual bool DoesEncodingStoreVersionInFile( const char *pEncodingName ) const;
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virtual void SetSerializationDelimiter( CUtlCharConversion *pConv );
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virtual void SetSerializationArrayDelimiter( const char *pDelimiter );
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virtual bool IsUnserializing();
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virtual bool Serialize( CUtlBuffer &outBuf, const char *pEncodingName, const char *pFormatName, DmElementHandle_t hRoot );
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virtual bool Unserialize( CUtlBuffer &buf, const char *pEncodingName, const char *pSourceFormatName, const char *pFormatHint,
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const char *pFileName, DmConflictResolution_t idConflictResolution, DmElementHandle_t &hRoot );
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virtual bool UpdateUnserializedElements( const char *pSourceFormatName, int nSourceFormatVersion,
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DmFileId_t fileid, DmConflictResolution_t idConflictResolution, CDmElement **ppRoot );
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virtual IDmSerializer* FindSerializer( const char *pEncodingName ) const;
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virtual IDmLegacyUpdater* FindLegacyUpdater( const char *pLegacyFormatName ) const;
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virtual IDmFormatUpdater* FindFormatUpdater( const char *pFormatName ) const;
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virtual bool SaveToFile( char const *pFileName, char const *pPathID, const char *pEncodingName, const char *pFormatName, CDmElement *pRoot );
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virtual DmFileId_t RestoreFromFile( char const *pFileName, char const *pPathID, const char *pFormatHint, CDmElement **ppRoot, DmConflictResolution_t idConflictResolution = CR_DELETE_NEW, DmxHeader_t *pHeaderOut = NULL );
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virtual void SetKeyValuesElementCallback( IElementForKeyValueCallback *pCallbackInterface );
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virtual const char * GetKeyValuesElementName( const char *pszKeyName, int iNestingLevel );
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virtual UtlSymId_t GetSymbol( const char *pString );
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virtual const char * GetString( UtlSymId_t sym ) const;
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virtual int GetElementsAllocatedSoFar();
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virtual int GetMaxNumberOfElements();
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virtual int GetAllocatedAttributeCount();
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virtual int GetAllocatedElementCount();
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virtual DmElementHandle_t FirstAllocatedElement();
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virtual DmElementHandle_t NextAllocatedElement( DmElementHandle_t hElement );
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virtual int EstimateMemoryUsage( DmElementHandle_t hElement, TraversalDepth_t depth = TD_DEEP );
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virtual void SetUndoEnabled( bool enable );
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virtual bool IsUndoEnabled() const;
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virtual bool UndoEnabledForElement( const CDmElement *pElement ) const;
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virtual bool IsDirty() const;
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virtual bool CanUndo() const;
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virtual bool CanRedo() const;
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virtual void StartUndo( const char *undodesc, const char *redodesc, int nChainingID = 0 );
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virtual void FinishUndo();
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virtual void AbortUndoableOperation();
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virtual void ClearRedo();
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virtual const char *GetUndoDesc();
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virtual const char *GetRedoDesc();
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virtual void Undo();
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virtual void Redo();
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virtual void TraceUndo( bool state ); // if true, undo records spew as they are added
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virtual void ClearUndo();
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virtual void GetUndoInfo( CUtlVector< UndoInfo_t >& list );
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virtual const char * GetUndoString( UtlSymId_t sym );
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virtual void AddUndoElement( IUndoElement *pElement );
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virtual UtlSymId_t GetUndoDescInternal( const char *context );
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virtual UtlSymId_t GetRedoDescInternal( const char *context );
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virtual void EmptyClipboard();
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virtual void SetClipboardData( CUtlVector< KeyValues * >& data, IClipboardCleanup *pfnOptionalCleanuFunction = 0 );
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virtual void AddToClipboardData( KeyValues *add );
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virtual void GetClipboardData( CUtlVector< KeyValues * >& data );
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virtual bool HasClipboardData() const;
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virtual CDmAttribute * GetAttribute( DmAttributeHandle_t h );
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virtual bool IsAttributeHandleValid( DmAttributeHandle_t h ) const;
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virtual void OnlyCreateUntypedElements( bool bEnable );
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virtual int NumFileIds();
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virtual DmFileId_t GetFileId( int i );
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virtual DmFileId_t FindOrCreateFileId( const char *pFilename );
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virtual void RemoveFileId( DmFileId_t fileid );
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virtual DmFileId_t GetFileId( const char *pFilename );
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virtual const char * GetFileName( DmFileId_t fileid );
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virtual void SetFileName( DmFileId_t fileid, const char *pFileName );
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virtual const char * GetFileFormat( DmFileId_t fileid );
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virtual void SetFileFormat( DmFileId_t fileid, const char *pFormat );
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virtual DmElementHandle_t GetFileRoot( DmFileId_t fileid );
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virtual void SetFileRoot( DmFileId_t fileid, DmElementHandle_t hRoot );
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virtual bool IsFileLoaded( DmFileId_t fileid );
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virtual void MarkFileLoaded( DmFileId_t fileid );
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virtual void UnloadFile( DmFileId_t fileid );
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virtual int NumElementsInFile( DmFileId_t fileid );
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virtual void DontAutoDelete( DmElementHandle_t hElement );
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virtual void MarkHandleInvalid( DmElementHandle_t hElement );
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virtual void MarkHandleValid( DmElementHandle_t hElement );
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virtual DmElementHandle_t FindElement( const DmObjectId_t &id );
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virtual DmAttributeReferenceIterator_t FirstAttributeReferencingElement( DmElementHandle_t hElement );
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virtual DmAttributeReferenceIterator_t NextAttributeReferencingElement( DmAttributeReferenceIterator_t hAttrIter );
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virtual CDmAttribute * GetAttribute( DmAttributeReferenceIterator_t hAttrIter );
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virtual bool InstallNotificationCallback( IDmNotify *pNotify );
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virtual void RemoveNotificationCallback( IDmNotify *pNotify );
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virtual bool IsSuppressingNotify( ) const;
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virtual void SetSuppressingNotify( bool bSuppress );
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virtual void PushNotificationScope( const char *pReason, int nNotifySource, int nNotifyFlags );
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virtual void PopNotificationScope( bool bAbort );
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virtual void SetUndoDepth( int nSize );
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virtual void DisplayMemoryStats();
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public:
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// Internal public methods
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int GetCurrentFormatVersion( const char *pFormatName );
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// CreateElement references the attribute list passed in via ref, so don't edit or purge ref's attribute list afterwards
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CDmElement* CreateElement( const DmElementReference_t &ref, const char *pElementType, const char *pElementName, DmFileId_t fileid, const DmObjectId_t *pObjectID );
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void DeleteElement( DmElementHandle_t hElement, DmHandleReleasePolicy hrp = HR_ALWAYS );
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// element handle related methods
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DmElementHandle_t AcquireElementHandle();
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void ReleaseElementHandle( DmElementHandle_t hElement );
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// Handles to attributes
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DmAttributeHandle_t AcquireAttributeHandle( CDmAttribute *pAttribute );
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void ReleaseAttributeHandle( DmAttributeHandle_t hAttribute );
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// remove orphaned element subtrees
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void FindAndDeleteOrphanedElements();
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// Event "mailing list"
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DmMailingList_t CreateMailingList();
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void DestroyMailingList( DmMailingList_t list );
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void AddElementToMailingList( DmMailingList_t list, DmElementHandle_t h );
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// Returns false if the mailing list is empty now
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bool RemoveElementFromMailingList( DmMailingList_t list, DmElementHandle_t h );
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// Returns false if the mailing list is empty now (can happen owing to stale attributes)
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bool PostAttributeChanged( DmMailingList_t list, CDmAttribute *pAttribute );
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void GetInvalidHandles( CUtlVector< DmElementHandle_t > &handles );
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void MarkHandlesValid( CUtlVector< DmElementHandle_t > &handles );
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void MarkHandlesInvalid( CUtlVector< DmElementHandle_t > &handles );
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// search id->handle table (both loaded and unloaded) for id, and if not found, create a new handle, map it to the id and return it
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DmElementHandle_t FindOrCreateElementHandle( const DmObjectId_t &id );
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// changes an element's id and associated mappings - generally during unserialization
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DmElementHandle_t ChangeElementId( DmElementHandle_t hElement, const DmObjectId_t &oldId, const DmObjectId_t &newId );
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DmElementReference_t *FindElementReference( DmElementHandle_t hElement, DmObjectId_t **ppId = NULL );
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void RemoveUnreferencedElements();
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void RemoveElementFromFile( DmElementHandle_t hElement, DmFileId_t fileid );
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void AddElementToFile( DmElementHandle_t hElement, DmFileId_t fileid );
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void NotifyState( int nNotifyFlags );
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int EstimateMemoryOverhead() const;
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bool IsCreatingUntypedElements() const { return m_bOnlyCreateUntypedElements; }
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unsigned short GetSymbolCount() const;
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private:
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struct MailingList_t
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{
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CUtlVector<DmElementHandle_t> m_Elements;
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};
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struct ElementIdHandlePair_t
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{
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DmObjectId_t m_id;
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DmElementReference_t m_ref;
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ElementIdHandlePair_t() {}
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explicit ElementIdHandlePair_t( const DmObjectId_t &id ) : m_ref()
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{
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CopyUniqueId( id, &m_id );
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}
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ElementIdHandlePair_t( const DmObjectId_t &id, const DmElementReference_t &ref ) : m_ref( ref )
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{
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CopyUniqueId( id, &m_id );
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}
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ElementIdHandlePair_t( const ElementIdHandlePair_t& that ) : m_ref( that.m_ref )
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{
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CopyUniqueId( that.m_id, &m_id );
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}
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ElementIdHandlePair_t &operator=( const ElementIdHandlePair_t &that )
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{
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CopyUniqueId( that.m_id, &m_id );
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m_ref = that.m_ref;
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return *this;
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}
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static unsigned int HashKey( const ElementIdHandlePair_t& that )
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{
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return *( unsigned int* )&that.m_id.m_Value;
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}
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static bool Compare( const ElementIdHandlePair_t& a, const ElementIdHandlePair_t& b )
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{
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return IsUniqueIdEqual( a.m_id, b.m_id );
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}
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};
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private:
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CDmElement *Unserialize( CUtlBuffer& buf );
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void Serialize( CDmElement *element, CUtlBuffer& buf );
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// Read the header, return the version (or false if it's not a DMX file)
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bool ReadDMXHeader( CUtlBuffer &inBuf, DmxHeader_t *pHeader ) const;
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const char *GetEncodingFromLegacyFormat( const char *pLegacyFormatName ) const;
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bool IsValidNonDMXFormat( const char *pFormatName ) const;
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bool IsLegacyFormat( const char *pFormatName ) const;
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// Returns the current undo manager
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CUndoManager* GetUndoMgr();
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const CUndoManager* GetUndoMgr() const;
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CClipboardManager *GetClipboardMgr();
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const CClipboardManager *GetClipboardMgr() const;
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void UnloadFile( DmFileId_t fileid, bool bDeleteElements );
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friend class CDmeElementRefHelper;
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friend class CDmAttribute;
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template< class T > friend class CDmArrayAttributeOp;
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void OnElementReferenceAdded ( DmElementHandle_t hElement, CDmAttribute *pAttribute );
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void OnElementReferenceRemoved( DmElementHandle_t hElement, CDmAttribute *pAttribute );
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void OnElementReferenceAdded ( DmElementHandle_t hElement, bool bRefCount );
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void OnElementReferenceRemoved( DmElementHandle_t hElement, bool bRefCount );
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private:
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CUtlVector< IDmSerializer* > m_Serializers;
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CUtlVector< IDmLegacyUpdater* > m_LegacyUpdaters;
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CUtlVector< IDmFormatUpdater* > m_FormatUpdaters;
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IDmElementFactory *m_pDefaultFactory;
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CUtlDict< IDmElementFactory*, int > m_Factories;
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CUtlSymbolTable m_SymbolTable;
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CUtlHandleTable< CDmElement, 20 > m_Handles;
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CUtlHandleTable< CDmAttribute, 20 > m_AttributeHandles;
|
|
CUndoManager m_UndoMgr;
|
|
CUtlLinkedList< MailingList_t, DmMailingList_t > m_MailingLists;
|
|
|
|
bool m_bIsUnserializing : 1;
|
|
bool m_bUnableToSetDefaultFactory : 1;
|
|
bool m_bOnlyCreateUntypedElements : 1;
|
|
bool m_bUnableToCreateOnlyUntypedElements : 1;
|
|
bool m_bDeleteOrphanedElements : 1;
|
|
|
|
CUtlHandleTable< FileElementSet_t, 20 > m_openFiles;
|
|
|
|
CElementIdHash m_elementIds;
|
|
CUtlHash< ElementIdHandlePair_t > m_unloadedIdElementMap;
|
|
CUtlVector< DmObjectId_t > m_unreferencedElementIds;
|
|
CUtlVector< DmElementHandle_t > m_unreferencedElementHandles;
|
|
|
|
CClipboardManager m_ClipboardMgr;
|
|
IElementForKeyValueCallback *m_pKeyvaluesCallbackInterface;
|
|
|
|
int m_nElementsAllocatedSoFar;
|
|
int m_nMaxNumberOfElements;
|
|
};
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Singleton
|
|
//-----------------------------------------------------------------------------
|
|
extern CDataModel *g_pDataModelImp;
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Inline methods
|
|
//-----------------------------------------------------------------------------
|
|
inline CUndoManager* CDataModel::GetUndoMgr()
|
|
{
|
|
return &m_UndoMgr;
|
|
}
|
|
|
|
inline const CUndoManager* CDataModel::GetUndoMgr() const
|
|
{
|
|
return &m_UndoMgr;
|
|
}
|
|
|
|
inline void CDataModel::NotifyState( int nNotifyFlags )
|
|
{
|
|
GetUndoMgr()->NotifyState( nNotifyFlags );
|
|
}
|
|
|
|
inline CClipboardManager *CDataModel::GetClipboardMgr()
|
|
{
|
|
return &m_ClipboardMgr;
|
|
}
|
|
|
|
inline const CClipboardManager *CDataModel::GetClipboardMgr() const
|
|
{
|
|
return &m_ClipboardMgr;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Methods of DmElement which are public to datamodel
|
|
//-----------------------------------------------------------------------------
|
|
class CDmeElementAccessor
|
|
{
|
|
public:
|
|
static void Purge( CDmElement *pElement ) { pElement->Purge(); }
|
|
static void SetId( CDmElement *pElement, const DmObjectId_t &id ) { pElement->SetId( id ); }
|
|
static bool IsDirty( const CDmElement *pElement ) { return pElement->IsDirty(); }
|
|
static void MarkDirty( CDmElement *pElement, bool dirty = true ) { pElement->MarkDirty( dirty ); }
|
|
static void MarkAttributesClean( CDmElement *pElement ) { pElement->MarkAttributesClean(); }
|
|
static void MarkBeingUnserialized( CDmElement *pElement, bool beingUnserialized = true ) { pElement->MarkBeingUnserialized( beingUnserialized ); }
|
|
static bool IsBeingUnserialized( const CDmElement *pElement ) { return pElement->IsBeingUnserialized(); }
|
|
static void AddAttributeByPtr( CDmElement *pElement, CDmAttribute *ptr ) { pElement->AddAttributeByPtr( ptr ); }
|
|
static void RemoveAttributeByPtrNoDelete( CDmElement *pElement, CDmAttribute *ptr ) { pElement->RemoveAttributeByPtrNoDelete( ptr); }
|
|
static void ChangeHandle( CDmElement *pElement, DmElementHandle_t handle ) { pElement->ChangeHandle( handle ); }
|
|
static DmElementReference_t *GetReference( CDmElement *pElement ) { return pElement->GetReference(); }
|
|
static void SetReference( CDmElement *pElement, const DmElementReference_t &ref ) { pElement->SetReference( ref ); }
|
|
static int EstimateMemoryUsage( CDmElement *pElement, CUtlHash< DmElementHandle_t > &visited, TraversalDepth_t depth, int *pCategories ) { return pElement->EstimateMemoryUsage( visited, depth, pCategories ); }
|
|
static void PerformConstruction( CDmElement *pElement ) { pElement->PerformConstruction(); }
|
|
static void PerformDestruction( CDmElement *pElement ) { pElement->PerformDestruction(); }
|
|
};
|
|
|
|
#endif // DATAMODEL_H
|