selection_conditions.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2014 CERN
 * Copyright The KiCad Developers, see AUTHORS.txt for contributors.
 *
 * @author Maciej Suminski <[email protected]>
 *
 * 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, see <https://www.gnu.org/licenses/>.
 */
 
#ifndef SELECTION_CONDITIONS_H_
#define SELECTION_CONDITIONS_H_
 
#include <functional>
#include <core/typeinfo.h>
#include <vector>
 
class SELECTION;

typedef std::function<bool (const SELECTION&)> SELECTION_CONDITION;
 
SELECTION_CONDITION operator||( const SELECTION_CONDITION& aConditionA,
                                const SELECTION_CONDITION& aConditionB );
 
SELECTION_CONDITION operator&&( const SELECTION_CONDITION& aConditionA,
                                const SELECTION_CONDITION& aConditionB );
 
SELECTION_CONDITION operator!( const SELECTION_CONDITION& aCondition );
 

typedef bool ( &SELECTION_BOOL )( const SELECTION& );
 
SELECTION_CONDITION operator||( const SELECTION_CONDITION& aConditionA,
                                SELECTION_BOOL aConditionB );
 
SELECTION_CONDITION operator||( SELECTION_BOOL aConditionA,
                                const SELECTION_CONDITION& aConditionB );
 
SELECTION_CONDITION operator&&( const SELECTION_CONDITION& aConditionA,
                                SELECTION_BOOL aConditionB );
 
SELECTION_CONDITION operator&&( SELECTION_BOOL aConditionA,
                                const SELECTION_CONDITION& aConditionB );

class SELECTION_CONDITIONS
{
public:
    static bool ShowAlways( const SELECTION& aSelection ) { return true; }

    static bool ShowNever( const SELECTION& aSelection ) { return false; }

    static bool NotEmpty( const SELECTION& aSelection );

    static bool Empty( const SELECTION& aSelection );

    static bool Idle( const SELECTION& aSelection );

    static bool IdleSelection( const SELECTION& aSelection );

    static SELECTION_CONDITION HasType( KICAD_T aType );

    static SELECTION_CONDITION HasTypes( std::vector<KICAD_T> aTypes );

    static SELECTION_CONDITION OnlyTypes( std::vector<KICAD_T> aTypes );

    static SELECTION_CONDITION Count( int aNumber );

    static SELECTION_CONDITION MoreThan( int aNumber );

    static SELECTION_CONDITION LessThan( int aNumber );
 
private:
    static bool hasTypeFunc( const SELECTION& aSelection, KICAD_T aType );

    static bool hasTypesFunc( const SELECTION& aSelection, std::vector<KICAD_T> aTypes );

    static bool onlyTypesFunc( const SELECTION& aSelection, std::vector<KICAD_T> aTypes );

    static bool countFunc( const SELECTION& aSelection, int aNumber );

    static bool moreThanFunc( const SELECTION& aSelection, int aNumber );

    static bool lessThanFunc( const SELECTION& aSelection, int aNumber );

    static bool orFunc( const SELECTION_CONDITION& aConditionA,
                        const SELECTION_CONDITION& aConditionB, const SELECTION& aSelection )
    {
        return aConditionA( aSelection ) || aConditionB( aSelection );
    }

    static bool andFunc( const SELECTION_CONDITION& aConditionA,
                         const SELECTION_CONDITION& aConditionB, const SELECTION& aSelection )
    {
        return aConditionA( aSelection ) && aConditionB( aSelection );
    }

    static bool notFunc( const SELECTION_CONDITION& aCondition, const SELECTION& aSelection )
    {
        return !aCondition( aSelection );
    }

    static bool orBoolFunc( const SELECTION_CONDITION& aConditionA,
                            SELECTION_BOOL& aConditionB, const SELECTION& aSelection )
    {
        return aConditionA( aSelection ) || aConditionB( aSelection );
    }

    static bool andBoolFunc( const SELECTION_CONDITION& aConditionA,
                             SELECTION_BOOL& aConditionB, const SELECTION& aSelection )
    {
        return aConditionA( aSelection ) && aConditionB( aSelection );
    }
 
    friend SELECTION_CONDITION operator||( const SELECTION_CONDITION& aConditionA,
                                           const SELECTION_CONDITION& aConditionB );
 
    friend SELECTION_CONDITION operator&&( const SELECTION_CONDITION& aConditionA,
                                           const SELECTION_CONDITION& aConditionB );
 
    friend SELECTION_CONDITION operator!( const SELECTION_CONDITION& aCondition );
 
    friend SELECTION_CONDITION operator||( const SELECTION_CONDITION& aConditionA,
                                           SELECTION_BOOL aConditionB );
 
    friend SELECTION_CONDITION operator&&( const SELECTION_CONDITION& aConditionA,
                                           SELECTION_BOOL aConditionB );
};
 
#endif /* SELECTION_CONDITIONS_H_ */