/******************************************************************************
	libx42.net - skinned vertex animation library (.NET API)
	Copyright (C) 2007 HermitWorks Entertainment Corporation

	This program is free software; you can redistribute it and/or modify it
	under the terms of the GNU General Public License as published by the Free
	Software Foundation; either version 2 of the License, or (at your option)
	any later version.

	This program is distributed in the hope that it will be useful, but
	WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
	for more details.

	You should have received a copy of the GNU General Public License along
	with this program; if not, write to the
	
		Free Software Foundation, Inc.
		51 Franklin Street, Fifth Floor
		Boston, MA  02110-1301, USA.
******************************************************************************/

#pragma once

#include "BasicCollection.h"

namespace Libx42
{

ref class Model;
ref class Group;

public ref class IndexCollection
	: public BasicCollection< x42index_t >
{
public:
	/// <summary>
	/// Gets this index data chunk's starting index in the model's indices array.
	/// </summary>
	/// <exception cref="InvalidOperationException">
	/// Thrown if this member is accessed on an implicit stream.
	/// </exception>
	property int Offset { int get( void ); }
	/// <summary>
	/// Gets the number of indices in this data chunk.
	/// </summary>
	property int Count { virtual int get( void ) override sealed { return count; } }
	property x42index_t default[int] { virtual x42index_t get( int index ) override sealed; }

	/// <summary>
	/// Gets whether the index values are implicit (always equal to index).
	/// This will always be true for non-indexed groups.
	/// </summary>
	property bool IsImplicit { bool get( void ) { return baseIndex == -1; } }

	virtual array< x42index_t >^ ToArray( void ) override sealed;

internal:
	IndexCollection( Model ^owner );
	IndexCollection( Model ^owner, Group ^group );

private:
	Model ^owner;
	int baseIndex, count;
};

}