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74f1f2b5e2
Piano now has a toolbar allowing the playback to be paused, or to be stepped forward or back a note.
58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2019-2020, William McPherson <willmcpherson2@gmail.com>
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* Copyright (c) 2021, JJ Roberts-White <computerfido@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include "Music.h"
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#include "Track.h"
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#include <AK/Array.h>
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#include <AK/Noncopyable.h>
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#include <AK/NonnullOwnPtr.h>
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#include <AK/Vector.h>
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class TrackManager {
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AK_MAKE_NONCOPYABLE(TrackManager);
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AK_MAKE_NONMOVABLE(TrackManager);
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public:
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TrackManager();
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~TrackManager();
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Track& current_track() { return *m_tracks[m_current_track]; }
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Span<const Sample> buffer() const { return m_current_front_buffer; }
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int octave() const { return m_octave; }
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int octave_base() const { return (m_octave - octave_min) * 12; }
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int time() const { return m_time; }
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void time_forward(int amount);
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void fill_buffer(Span<Sample>);
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void reset();
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void set_should_loop(bool b) { m_should_loop = b; }
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void set_note_current_octave(int note, Switch);
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void set_octave(Direction);
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void set_octave(int octave);
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void add_track();
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void next_track();
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private:
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Vector<NonnullOwnPtr<Track>> m_tracks;
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size_t m_current_track { 0 };
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Array<Sample, sample_count> m_front_buffer;
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Array<Sample, sample_count> m_back_buffer;
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Span<Sample> m_current_front_buffer { m_front_buffer.span() };
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Span<Sample> m_current_back_buffer { m_back_buffer.span() };
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int m_octave { 4 };
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u32 m_time { 0 };
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bool m_should_loop { true };
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};
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