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https://github.com/LadybirdBrowser/ladybird.git
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4941cffdd0
This is a tangly commit and it fixes all the bugs that a plain move would have caused (i.e. we need to touch other logic which had wrong assumptions).
59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
/*
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* Copyright (c) 2021-2022, kleines Filmröllchen <filmroellchen@serenityos.org>
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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 <AK/NonnullRefPtr.h>
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#include <AK/RefCounted.h>
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#include <LibDSP/Music.h>
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#include <LibDSP/Transport.h>
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namespace DSP {
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class Keyboard : public RefCounted<Keyboard> {
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public:
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enum class Direction : bool {
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Down,
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Up,
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};
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enum class Switch : bool {
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Off,
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On,
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};
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Keyboard(NonnullRefPtr<Transport> transport)
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: m_transport(move(transport))
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{
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}
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u8 virtual_keyboard_octave() const { return m_virtual_keyboard_octave; }
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u8 virtual_keyboard_octave_base() const { return (m_virtual_keyboard_octave - octave_min) * 12; }
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// Automatically clips the octave between the minimum and maximum.
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void change_virtual_keyboard_octave(Direction);
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// Errors out if the set octave is out of range.
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ErrorOr<void> set_virtual_keyboard_octave(u8 octave);
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void set_keyboard_note(u8 pitch, Switch note_switch);
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void set_keyboard_note_in_active_octave(i8 octave_offset, Switch note_switch);
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RollNotes const& notes() const { return m_pressed_notes; }
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Optional<RollNote> note_at(u8 pitch) const { return m_pressed_notes[pitch]; }
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bool is_pressed(u8 pitch) const;
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bool is_pressed_in_active_octave(i8 octave_offset) const;
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private:
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u8 m_virtual_keyboard_octave { 4 };
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RollNotes m_pressed_notes;
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NonnullRefPtr<Transport> m_transport;
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static constexpr int const octave_min = 1;
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static constexpr int const octave_max = 7;
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};
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}
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