Line data    Source code

       1              : /*
       2              :  * SPDX-License-Identifier: GPL-3.0-only
       3              :  * MuseScore-CLA-applies
       4              :  *
       5              :  * MuseScore Studio
       6              :  * Music Composition & Notation
       7              :  *
       8              :  * Copyright (C) 2021 MuseScore Limited and others
       9              :  *
      10              :  * This program is free software: you can redistribute it and/or modify
      11              :  * it under the terms of the GNU General Public License version 3 as
      12              :  * published by the Free Software Foundation.
      13              :  *
      14              :  * This program is distributed in the hope that it will be useful,
      15              :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      16              :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      17              :  * GNU General Public License for more details.
      18              :  *
      19              :  * You should have received a copy of the GNU General Public License
      20              :  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
      21              :  */
      22              : 
      23              : #pragma once
      24              : 
      25              : #include <memory>
      26              : 
      27              : #include "audio/common/timeposition.h"
      28              : 
      29              : namespace muse::audio::engine {
      30              : class IPlayheadPosition
      31              : {
      32              : public:
      33            0 :     virtual ~IPlayheadPosition() = default;
      34              :     virtual const TimePosition& currentPosition() const = 0;
      35              : };
      36              : 
      37              : class IPlayhead : public IPlayheadPosition
      38              : {
      39              : public:
      40              : 
      41              :     virtual void forward(const TimePosition& delta) = 0;
      42              : };
      43              : 
      44              : using PlayheadPositionPtr = std::shared_ptr<IPlayheadPosition>;
      45              : using PlayheadPtr = std::shared_ptr<IPlayhead>;
      46              : }