kicad/3d-viewer/3d_cache/sg/sg_index.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2015-2017 Cirilo Bernardo <cirilo.bernardo@gmail.com>
*
* 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, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/**
* @file sg_index.h
* defines a generic Index interface for a scenegraph object
*/
#ifndef SG_INDEX_H
#define SG_INDEX_H
#include <vector>
#include "3d_cache/sg/sg_node.h"
class SGINDEX : public SGNODE
{
protected:
bool writeCoordIndex( std::ostream& aFile );
bool writeColorIndex( std::ostream& aFile );
bool writeIndexList( std::ostream& aFile );
public:
// for internal SG consumption only
std::vector< int > index;
void unlinkChildNode( const SGNODE* aCaller ) noexcept override;
void unlinkRefNode( const SGNODE* aCaller ) noexcept override;
public:
SGINDEX( SGNODE* aParent );
virtual ~SGINDEX();
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virtual bool SetParent( SGNODE* aParent, bool notify = true ) override;
SGNODE* FindNode(const char *aNodeName, const SGNODE *aCaller) noexcept override;
bool AddRefNode( SGNODE* aNode ) noexcept override;
bool AddChildNode( SGNODE* aNode ) noexcept override;
/**
* Function GetIndices
* retrieves the number of indices and a pointer to
* the list. Note: the returned pointer may be invalidated
* by future operations on the SGNODE; the caller must make
* immediate use of the data and must not rely on the pointer's
* validity in the future.
*
* @param nIndices [out] will hold the number of indices in the list
* @param aIndexList [out] will store a pointer to the data
* @return true if there was available data (nIndices > 0) otherwise false
*/
bool GetIndices( size_t& nIndices, int*& aIndexList );
/**
* Function SetIndices
* sets the number of indices and creates a copy of the given index data.
*
* @param nIndices [in] the number of indices to be stored
* @param aIndexList [in] the index data
*/
void SetIndices( size_t nIndices, int* aIndexList );
/**
* Function AddIndex
* adds a single index to the list
*
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* @param aIndex is the index to add
*/
void AddIndex( int aIndex );
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void ReNameNodes( void ) override;
bool WriteVRML( std::ostream& aFile, bool aReuseFlag ) override;
bool WriteCache( std::ostream& aFile, SGNODE* parentNode ) override;
bool ReadCache( std::istream& aFile, SGNODE* parentNode ) override;
};
#endif // SG_INDEX_H