96 lines
2.5 KiB
C
96 lines
2.5 KiB
C
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//====== Copyright <20> 1996-2004, 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 DMVAR_H
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#define DMVAR_H
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#ifdef _WIN32
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#pragma once
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#endif
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class CDmAttribute;
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//-----------------------------------------------------------------------------
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// Helper template for external attributes
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//-----------------------------------------------------------------------------
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template< typename T >
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class CDmaVar
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{
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typedef typename CDmAttributeInfo< T >::StorageType_t D;
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public:
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CDmaVar( );
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// Setup to be used in OnConstruction methods of DmElements
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void Init( CDmElement *pOwner, const char *pAttributeName, int flags = 0 );
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void InitAndSet( CDmElement *pOwner, const char *pAttributeName, const T &value, int flags = 0 );
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// Set/get
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const T& Set( const T &val );
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const T& Get() const;
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// Cast operators
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operator const T&() const;
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const T* operator->() const;
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// Assignment operator
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const CDmaVar<T>& operator=( const CDmaVar<T>& src );
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// Math utility operations
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const T& operator=( const T &val );
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const T& operator+=( const T &val );
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const T& operator-=( const T &val );
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const T& operator/=( const T &val );
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const T& operator*=( const T &val );
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const T& operator^=( const T &val );
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const T& operator|=( const T &val );
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const T& operator&=( const T &val );
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T operator++();
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T operator--();
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T operator++( int ); // postfix version..
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T operator--( int ); // postfix version..
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// Returns the attribute associated with the var
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CDmAttribute *GetAttribute();
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const CDmAttribute *GetAttribute() const;
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// Is the attribute dirty?
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bool IsDirty() const;
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protected:
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const T& Value() const;
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T& Value();
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const D& Storage() const;
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D& Storage();
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private:
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D m_Storage;
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protected:
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CDmAttribute *m_pAttribute;
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};
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//-----------------------------------------------------------------------------
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// Specialization for string
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//-----------------------------------------------------------------------------
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class CDmaString : public CDmaVar< CUtlSymbolLarge >
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{
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public:
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const char *Get( ) const;
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operator const char*() const;
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void InitAndSet( CDmElement *pOwner, const char *pAttributeName, const char *pValue, int flags = 0 );
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void Set( const char *pValue );
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CDmaString &operator=( const char *src );
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const CDmaString& operator=( const CDmaString& src );
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// Returns strlen
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int Length() const;
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bool IsEmpty() const;
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};
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#endif // DMVAR_H
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