from_to_cache.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2004-2022 KiCad Developers.
 *
 * 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/>.
 */
 
#ifndef FROM_TO_CACHE_H
#define FROM_TO_CACHE_H
 
#include <set>
 
class PAD;
class BOARD_CONNECTED_ITEM;
 
class FROM_TO_CACHE
{
public:
 
    struct FT_ENDPOINT
    {
        wxString name;
        PAD*     parent;
    };
 
    struct FT_PATH
    {
        int      net;
        PAD*     from;
        PAD*     to;
        wxString fromName, toName;
        wxString fromWildcard, toWildcard;
        bool     isUnique;
        std::set<BOARD_CONNECTED_ITEM*> pathItems;
    };
 
    FROM_TO_CACHE( BOARD* aBoard = nullptr ) :
        m_board( aBoard )
    {
    }
 
    ~FROM_TO_CACHE()
    {
    }
 
    void Rebuild( BOARD* aBoard );
    bool IsOnFromToPath( BOARD_CONNECTED_ITEM* aItem, const wxString& aFrom, const wxString& aTo );
 
    FT_PATH* QueryFromToPath( const std::set<BOARD_CONNECTED_ITEM*>& aItems );
 
private:
    int cacheFromToPaths( const wxString& aFrom, const wxString& aTo );
    void buildEndpointList();
 
private:
    std::vector<FT_ENDPOINT> m_ftEndpoints;
    std::vector<FT_PATH>     m_ftPaths;
 
    BOARD*                   m_board;
};
 
#endif