64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
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/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2023 Ethan Chien <liangtie.qian@gmail.com>
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* Copyright (C) 2023 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef ZONE_SELECTION_CHANGE_NOTIFIER_H
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#define ZONE_SELECTION_CHANGE_NOTIFIER_H
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class ZONE;
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/**
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* @brief Subscriber who is interested in the zone selection change
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*
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*/
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class ZONE_SELECTION_CHANGE_NOTIFIER
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{
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public:
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virtual ~ZONE_SELECTION_CHANGE_NOTIFIER() = default;
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ZONE* GetZone() const { return m_zone; }
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/**
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* @brief Inform the subscriber about the zone selection change
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*
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* @param aZone The current zone selection from the publisher
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*/
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void OnZoneSelectionChanged( ZONE* aZone )
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{
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if( m_zone == aZone )
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return;
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m_zone = aZone;
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ActivateSelectedZone( m_zone );
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}
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ZONE* GetSelectedZone() const { return m_zone; }
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protected:
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virtual void ActivateSelectedZone( ZONE* new_zone ) = 0;
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private:
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ZONE* m_zone{};
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};
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#endif
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