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diff --git a/public/panorama/iuistylefactory.h b/public/panorama/iuistylefactory.h
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+++ b/public/panorama/iuistylefactory.h
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+//=========== Copyright Valve Corporation, All rights reserved. ===============//
+//
+// Purpose: 
+//=============================================================================//
+
+#ifndef IUISTYLEFACTORY_H
+#define IUISTYLEFACTORY_H
+
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "panoramatypes.h"
+#include "layout/stylesymbol.h"
+
+namespace panorama
+{
+
+//-----------------------------------------------------------------------------
+// Purpose: Public interface for style factory (usuable in client code)
+//-----------------------------------------------------------------------------
+class IUIStyleFactory
+{
+public:
+
+	virtual bool BRegisteredProperty( panorama::CStyleSymbol symName ) = 0;
+	virtual CStyleSymbol GetPropertyNameForAlias( panorama::CStyleSymbol symName ) = 0;
+	virtual CStyleProperty *CreateStyleProperty( panorama::CStyleSymbol symName ) = 0;
+	virtual void FreeStyleProperty( panorama::CStyleProperty *pProperty ) = 0;
+	virtual const CUtlVector< CUtlString > &GetSortedPropertyAndAliasNames() = 0;
+};
+
+//-----------------------------------------------------------------------------
+// Purpose: Sort comparator
+//-----------------------------------------------------------------------------
+inline int CompareStylePropertyName( const CUtlString *plhs, const CUtlString *prhs )
+{
+	return V_strcmp( plhs->Get(), prhs->Get() );
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Less than function
+//-----------------------------------------------------------------------------
+inline bool StylePropertyNameLessThan( const CUtlString &lhs, const CUtlString &rhs, void *pContext )
+{
+	return CompareStylePropertyName( &lhs, &rhs ) < 0;
+}
+
+
+}
+#endif // IUISTYLEFACTORY_H
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