3d_cache.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2015 Cirilo Bernardo <cirilo.bernardo@gmail.com>
 * Copyright (C) 2020 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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
 */

#ifndef CACHE_3D_H
#define CACHE_3D_H

#include "3d_info.h"
#include <core/typeinfo.h>
#include "string_utils.h"
#include <list>
#include <map>
#include "plugins/3dapi/c3dmodel.h"
#include <project.h>
#include <wx/string.h>

class  PGM_BASE;
class  S3D_CACHE_ENTRY;
class  SCENEGRAPH;
class  FILENAME_RESOLVER;
class  S3D_PLUGIN_MANAGER;


class S3D_CACHE : public PROJECT::_ELEM
{
public:
    S3D_CACHE();
    virtual ~S3D_CACHE();

    KICAD_T Type() noexcept override
    {
        return S3D_CACHE_T;
    }

    bool Set3DConfigDir( const wxString& aConfigDir );

    bool SetProject( PROJECT* aProject );

    void SetProgramBase( PGM_BASE* aBase );

    SCENEGRAPH* Load( const wxString& aModelFile );

    FILENAME_RESOLVER* GetResolver() noexcept;

    std::list< wxString > const* GetFileFilters() const;

    void FlushCache( bool closePlugins = true );

    void ClosePlugins();

    S3DMODEL* GetModel( const wxString& aModelFileName );

    void CleanCacheDir( int aNumDaysOld );

private:
    SCENEGRAPH* checkCache( const wxString& aFileName, S3D_CACHE_ENTRY** aCachePtr = nullptr );

    bool getSHA1( const wxString& aFileName, unsigned char* aSHA1Sum );

    // load scene data from a cache file
    bool loadCacheData( S3D_CACHE_ENTRY* aCacheItem );

    // save scene data to a cache file
    bool saveCacheData( S3D_CACHE_ENTRY* aCacheItem );

    // the real load function (can supply a cache entry pointer to member functions)
    SCENEGRAPH* load( const wxString& aModelFile, S3D_CACHE_ENTRY** aCachePtr = nullptr );

    std::list< S3D_CACHE_ENTRY* > m_CacheList;

    std::map< wxString, S3D_CACHE_ENTRY*, rsort_wxString > m_CacheMap;

    FILENAME_RESOLVER*  m_FNResolver;

    S3D_PLUGIN_MANAGER* m_Plugins;

    PROJECT*            m_project;
    wxString            m_CacheDir;
    wxString            m_ConfigDir;       
};

#endif  // CACHE_3D_H