Files
lmms/include/ModelVisitor.h
2023-01-05 17:58:49 -05:00

72 lines
2.0 KiB
C++

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