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72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
/*
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* ModelVisitor.h - visitors for automatable models
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*
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* Copyright (c) 2019-2019 Johannes Lorenz <j.git$$$lorenz-ho.me, $$$=@>
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*
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* This file is part of LMMS - https://lmms.io
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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
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* License as published by the Free Software Foundation; either
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* version 2 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 GNU
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* 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
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef LMMS_MODEL_VISITOR_H
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#define LMMS_MODEL_VISITOR_H
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namespace lmms
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{
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class AutomatableModel;
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class BoolModel;
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class IntModel;
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class FloatModel;
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class ComboBoxModel;
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class TempoSyncKnobModel;
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class ModelVisitor
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{
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template<class ParentType = AutomatableModel, class ModelType>
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void up(ModelType& m) { visit(static_cast<ParentType&>(m)); }
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public:
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virtual void visit(AutomatableModel& ) {}
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virtual void visit(BoolModel& m);
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virtual void visit(IntModel& m);
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virtual void visit(FloatModel& m);
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virtual void visit(ComboBoxModel& m);
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virtual void visit(TempoSyncKnobModel& m);
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virtual ~ModelVisitor() = default;
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};
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class ConstModelVisitor
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{
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template<class ParentType = AutomatableModel, class ModelType>
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void up(const ModelType& m) {
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visit(static_cast<const ParentType&>(m)); }
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public:
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virtual void visit(const AutomatableModel& ) {}
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virtual void visit(const BoolModel& m);
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virtual void visit(const IntModel& m);
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virtual void visit(const FloatModel& m);
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virtual void visit(const ComboBoxModel& m);
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virtual void visit(const TempoSyncKnobModel& m);
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virtual ~ConstModelVisitor() = default;
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};
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} // namespace lmms
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#endif // LMMS_MODEL_VISITOR_H
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