You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
115 lines
3.3 KiB
115 lines
3.3 KiB
/*
|
|
* This program source code file is part of KiCad, a free EDA CAD application.
|
|
*
|
|
* Copyright (C) 2017 Kicad Developers, see change_log.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 CONFIG_MAP__H_
|
|
#define CONFIG_MAP__H_
|
|
|
|
#include <map>
|
|
|
|
namespace UTIL
|
|
{
|
|
|
|
/**
|
|
* A config value table is a list of native values (usually enums)
|
|
* to a different set of values, for example, the values used to
|
|
* represent the enum in a config file, or the index used to represent
|
|
* it in a selection list.
|
|
*
|
|
* It can be important to decouple from the internal representation,
|
|
* especially in the case of persistent config files, as adding,
|
|
* removing or modifying the order of items internally can easily
|
|
* result in configs being read incorrectly, and, even if otherwise
|
|
* carefully managed, results in obsolete values being kept in enums
|
|
* as placeholders.
|
|
*
|
|
* The first item in the list is used default if no matching value is
|
|
* found during lookup.
|
|
*/
|
|
template<typename T>
|
|
using CFG_MAP = std::vector<std::pair<T, long> >;
|
|
|
|
/**
|
|
* The "native" type of a CFG_MAP: probably an enum type
|
|
*/
|
|
template<typename MAP>
|
|
using CFG_NATIVE_VAL = typename MAP::value_type::first_type;
|
|
|
|
|
|
/**
|
|
* Get the mapped config value (the one to write to file, or use in
|
|
* an index) from the given native (probably enum) value.
|
|
*
|
|
* The default (first item) is returned if the value is not found
|
|
* in the list.
|
|
*
|
|
* @param aMap the value-config mapping table
|
|
* @param aVal the value to look up
|
|
*/
|
|
template<typename MAP>
|
|
static long GetConfigForVal( const MAP& aMap, CFG_NATIVE_VAL<MAP> aVal )
|
|
{
|
|
// default is first entry
|
|
long aConf = aMap[0].second;
|
|
|
|
for( const auto& mapping : aMap )
|
|
{
|
|
if( mapping.first == aVal )
|
|
{
|
|
aConf = mapping.second;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return aConf;
|
|
}
|
|
|
|
/**
|
|
* Get the native value corresponding to the config value
|
|
* (read from file or UI, probably) and find it in the mapping table.
|
|
*
|
|
* The default item is returned if the mapping fails.
|
|
*
|
|
* @param aMap the value-config mapping table
|
|
* @param aConf the config value to look up
|
|
*/
|
|
template<typename MAP>
|
|
static CFG_NATIVE_VAL<MAP> GetValFromConfig( const MAP& aMap, long aConf )
|
|
{
|
|
// default is first entry
|
|
CFG_NATIVE_VAL<MAP> aVal = aMap[0].first;
|
|
|
|
for( const auto& mapping : aMap )
|
|
{
|
|
if( mapping.second == aConf )
|
|
{
|
|
aVal = mapping.first;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return aVal;
|
|
}
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_MAP__H_ */
|