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b14a64b3c8
Almost all synthesizer code in Piano is removed in favor of the LibDSP reimplementation. This causes some issues that mainly have to do with the way Piano currently handles talking to LibDSP. Additionally, the sampler is gone for now and will be reintroduced with future work.
162 lines
4.2 KiB
C++
162 lines
4.2 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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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "MainWidget.h"
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#include "KeysWidget.h"
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#include "KnobsWidget.h"
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#include "PlayerWidget.h"
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#include "RollWidget.h"
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#include "SamplerWidget.h"
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#include "TrackManager.h"
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#include "WaveWidget.h"
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#include <LibGUI/Action.h>
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#include <LibGUI/BoxLayout.h>
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#include <LibGUI/Menu.h>
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#include <LibGUI/TabWidget.h>
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MainWidget::MainWidget(TrackManager& track_manager, AudioPlayerLoop& loop)
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: m_track_manager(track_manager)
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, m_audio_loop(loop)
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{
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set_layout<GUI::VerticalBoxLayout>();
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layout()->set_spacing(2);
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layout()->set_margins(2);
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set_fill_with_background_color(true);
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m_wave_widget = add<WaveWidget>(track_manager);
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m_wave_widget->set_fixed_height(100);
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m_tab_widget = add<GUI::TabWidget>();
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m_roll_widget = m_tab_widget->add_tab<RollWidget>("Piano Roll", track_manager);
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m_roll_widget->set_fixed_height(300);
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m_tab_widget->add_tab<SamplerWidget>("Sampler", track_manager);
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m_player_widget = add<PlayerWidget>(track_manager, loop);
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m_keys_and_knobs_container = add<GUI::Widget>();
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m_keys_and_knobs_container->set_layout<GUI::HorizontalBoxLayout>();
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m_keys_and_knobs_container->layout()->set_spacing(2);
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m_keys_and_knobs_container->set_fixed_height(130);
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m_keys_and_knobs_container->set_fill_with_background_color(true);
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m_keys_widget = m_keys_and_knobs_container->add<KeysWidget>(track_manager);
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m_knobs_widget = m_keys_and_knobs_container->add<KnobsWidget>(track_manager, *this);
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m_roll_widget->set_keys_widget(m_keys_widget);
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}
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MainWidget::~MainWidget()
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{
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}
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void MainWidget::add_actions(GUI::Menu& menu)
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{
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menu.add_action(GUI::Action::create("&Add Track", { Mod_Ctrl, Key_T }, [&](auto&) {
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m_track_manager.add_track();
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}));
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menu.add_action(GUI::Action::create("&Next Track", { Mod_Ctrl, Key_N }, [&](auto&) {
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turn_off_pressed_keys();
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m_track_manager.next_track();
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turn_on_pressed_keys();
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m_knobs_widget->update_knobs();
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}));
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}
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// FIXME: There are some unnecessary calls to update() throughout this program,
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// which are an easy target for optimization.
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void MainWidget::custom_event(Core::CustomEvent&)
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{
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m_wave_widget->update();
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m_roll_widget->update();
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}
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void MainWidget::keydown_event(GUI::KeyEvent& event)
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{
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// This is to stop held-down keys from creating multiple events.
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if (m_keys_pressed[event.key()])
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return;
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else
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m_keys_pressed[event.key()] = true;
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note_key_action(event.key(), On);
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special_key_action(event.key());
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m_keys_widget->update();
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}
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void MainWidget::keyup_event(GUI::KeyEvent& event)
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{
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m_keys_pressed[event.key()] = false;
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note_key_action(event.key(), Off);
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m_keys_widget->update();
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}
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void MainWidget::note_key_action(int key_code, Switch switch_note)
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{
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int key = m_keys_widget->key_code_to_key(key_code);
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m_keys_widget->set_key(key, switch_note);
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}
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void MainWidget::special_key_action(int key_code)
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{
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switch (key_code) {
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case Key_Z:
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set_octave_and_ensure_note_change(Down);
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break;
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case Key_X:
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set_octave_and_ensure_note_change(Up);
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break;
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case Key_C:
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m_knobs_widget->cycle_waveform();
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break;
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}
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}
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void MainWidget::turn_off_pressed_keys()
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{
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m_keys_widget->set_key(m_keys_widget->mouse_note(), Off);
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for (int i = 0; i < key_code_count; ++i) {
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if (m_keys_pressed[i])
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note_key_action(i, Off);
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}
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}
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void MainWidget::turn_on_pressed_keys()
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{
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m_keys_widget->set_key(m_keys_widget->mouse_note(), On);
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for (int i = 0; i < key_code_count; ++i) {
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if (m_keys_pressed[i])
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note_key_action(i, On);
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}
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}
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void MainWidget::set_octave_and_ensure_note_change(int octave)
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{
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turn_off_pressed_keys();
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m_track_manager.set_octave(octave);
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turn_on_pressed_keys();
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m_knobs_widget->update_knobs();
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m_keys_widget->update();
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}
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void MainWidget::set_octave_and_ensure_note_change(Direction direction)
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{
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turn_off_pressed_keys();
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m_track_manager.set_octave(direction);
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turn_on_pressed_keys();
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m_knobs_widget->update_knobs();
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m_keys_widget->update();
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}
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