sch_io_mgr.h

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#ifndef _SCH_IO_MGR_H_
#define _SCH_IO_MGR_H_

/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2016 CERN
 * Copyright (C) 2016-2020 KiCad Developers, see CHANGELOG.TXT for contributors.
 *
 * @author Wayne Stambaugh <stambaughw@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 3
 * 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, see <http://www.gnu.org/licenses/>.
 */

#include <richio.h>
#include <import_export.h>
#include <map>
#include <enum_vector.h>


class SCH_SHEET;
class SCH_SCREEN;
class SCH_PLUGIN;
class SCHEMATIC;
class KIWAY;
class LIB_PART;
class PART_LIB;
class PROPERTIES;


class SCH_IO_MGR
{
public:

    DEFINE_ENUM_VECTOR( SCH_FILE_T,
            {
                    SCH_LEGACY, 
                    SCH_KICAD,  
                    SCH_ALTIUM,  
                    SCH_CADSTAR_ARCHIVE, 
                    SCH_EAGLE,  
                    // Add your schematic type here.

                    // ALTIUM,
                    // etc.
                    SCH_FILE_UNKNOWN
            } )

    APIEXPORT
    static SCH_PLUGIN* FindPlugin( SCH_FILE_T aFileType );

    static void ReleasePlugin( SCH_PLUGIN* aPlugin );

    static const wxString ShowType( SCH_FILE_T aFileType );

    static SCH_FILE_T EnumFromStr( const wxString& aFileType );

    static const wxString GetFileExtension( SCH_FILE_T aFileType );

    static const wxString GetLibraryFileExtension( SCH_FILE_T aFileType );

    static SCH_FILE_T GuessPluginTypeFromLibPath( const wxString& aLibPath );

    static SCH_FILE_T GuessPluginTypeFromSchPath( const wxString& aSchematicPath );
};


class SCH_PLUGIN
{
public:

    //-----<PUBLIC SCH_PLUGIN API>-------------------------------------------------

    virtual const wxString GetName() const = 0;

    virtual const wxString GetFileExtension() const = 0;

    virtual const wxString GetLibraryFileExtension() const = 0;

    virtual int GetModifyHash() const = 0;

    virtual void SaveLibrary( const wxString& aFileName, const PROPERTIES* aProperties = NULL );

    virtual SCH_SHEET* Load( const wxString& aFileName, SCHEMATIC* aSchematic,
                             SCH_SHEET* aAppendToMe = NULL, const PROPERTIES* aProperties = NULL );

    virtual void Save( const wxString& aFileName, SCH_SHEET* aSheet, SCHEMATIC* aSchematic,
                       const PROPERTIES* aProperties = NULL );

    virtual void EnumerateSymbolLib( wxArrayString&    aSymbolNameList,
                                     const wxString&   aLibraryPath,
                                     const PROPERTIES* aProperties = NULL );

    virtual void EnumerateSymbolLib( std::vector<LIB_PART*>& aSymbolList,
                                     const wxString&   aLibraryPath,
                                     const PROPERTIES* aProperties = NULL );

    virtual LIB_PART* LoadSymbol( const wxString& aLibraryPath, const wxString& aPartName,
                                  const PROPERTIES* aProperties = NULL );

    virtual void SaveSymbol( const wxString& aLibraryPath, const LIB_PART* aSymbol,
                             const PROPERTIES* aProperties = NULL );

    virtual void DeleteSymbol( const wxString& aLibraryPath, const wxString& aSymbolName,
                               const PROPERTIES* aProperties = NULL );

    virtual void CreateSymbolLib( const wxString& aLibraryPath,
                                  const PROPERTIES* aProperties = NULL );

    virtual bool DeleteSymbolLib( const wxString& aLibraryPath,
                                  const PROPERTIES* aProperties = NULL );

    virtual bool IsSymbolLibWritable( const wxString& aLibraryPath );

    virtual void SymbolLibOptions( PROPERTIES* aListToAppendTo ) const;

    virtual bool CheckHeader( const wxString& aFileName );

    virtual const wxString& GetError() const;

    //-----</PUBLIC SCH_PLUGIN API>------------------------------------------------


    /*  The compiler writes the "zero argument" constructor for a SCH_PLUGIN
        automatically if you do not provide one. If you decide you need to
        provide a zero argument constructor of your own design, that is allowed.
        It must be public, and it is what the SCH_IO_MGR uses.  Parameters may be
        passed into a SCH_PLUGIN via the PROPERTIES variable for any of the public
        API functions which take one.
    */
    virtual ~SCH_PLUGIN() { }


    class SCH_PLUGIN_RELEASER
    {
        SCH_PLUGIN* plugin;

        // private assignment operator so it's illegal
        SCH_PLUGIN_RELEASER& operator=( SCH_PLUGIN_RELEASER& aOther ) { return *this; }

        // private copy constructor so it's illegal
        SCH_PLUGIN_RELEASER( const SCH_PLUGIN_RELEASER& aOther ) {}

    public:
        SCH_PLUGIN_RELEASER( SCH_PLUGIN* aPlugin = NULL ) :
            plugin( aPlugin )
        {
        }

        ~SCH_PLUGIN_RELEASER()
        {
            if( plugin )
                release();
        }

        void release()
        {
            SCH_IO_MGR::ReleasePlugin( plugin );
            plugin = NULL;
        }

        void set( SCH_PLUGIN* aPlugin )
        {
            if( plugin )
                release();
            plugin = aPlugin;
        }

        operator SCH_PLUGIN* () const
        {
            return plugin;
        }

        SCH_PLUGIN* operator -> () const
        {
            return plugin;
        }
    };
};

#endif // _SCH_IO_MGR_H_