66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
/*
|
|
* This program source code file is part of KiCad, a free EDA CAD application.
|
|
*
|
|
* Copyright (C) 2017 CERN
|
|
* Copyright (C) 2020-2021 KiCad Developers, see AUTHORS.txt for contributors.
|
|
*
|
|
* @author Maciej Suminski <maciej.suminski@cern.ch>
|
|
*
|
|
* 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 HASH_EDA_H_
|
|
#define HASH_EDA_H_
|
|
|
|
/**
|
|
* @brief Hashing functions for EDA_ITEMs.
|
|
*/
|
|
|
|
#include <cstdlib>
|
|
#include <functional>
|
|
|
|
class EDA_ITEM;
|
|
|
|
///< Enables/disables properties that will be used for calculating the hash.
|
|
///< The properties might be combined using the bitwise 'or' operator.
|
|
enum HASH_FLAGS
|
|
{
|
|
HASH_POS = 0x01,
|
|
|
|
///< use coordinates relative to the parent object
|
|
REL_COORD = 0x02,
|
|
///< use coordinates relative to the shape position
|
|
REL_POS = 0x04,
|
|
HASH_ROT = 0x08,
|
|
HASH_LAYER = 0x10,
|
|
HASH_NET = 0x20,
|
|
HASH_REF = 0x40,
|
|
HASH_VALUE = 0x80,
|
|
HASH_ALL = 0xff
|
|
};
|
|
|
|
/**
|
|
* Calculate hash of an EDA_ITEM.
|
|
*
|
|
* @param aItem is the item for which the hash will be computed.
|
|
* @return Hash value.
|
|
*/
|
|
std::size_t hash_fp_item( const EDA_ITEM* aItem, int aFlags = HASH_FLAGS::HASH_ALL );
|
|
|
|
#endif
|