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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2019-2020, William McPherson <willmcpherson2@gmail.com>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "KnobsWidget.h"
#include "MainWidget.h"
#include "ProcessorParameterWidget/Slider.h"
#include "TrackManager.h"
#include <LibDSP/ProcessorParameter.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Label.h>
#include <LibGUI/Slider.h>
#include <LibGfx/Orientation.h>
KnobsWidget::KnobsWidget(TrackManager& track_manager, MainWidget& main_widget)
: m_track_manager(track_manager)
, m_main_widget(main_widget)
{
set_layout<GUI::VerticalBoxLayout>();
set_fill_with_background_color(true);
m_labels_container = add<GUI::Widget>();
m_labels_container->set_layout<GUI::HorizontalBoxLayout>();
m_labels_container->set_fixed_height(45);
m_volume_label = m_labels_container->add<GUI::Label>("Volume");
m_octave_label = m_labels_container->add<GUI::Label>("Octave");
m_values_container = add<GUI::Widget>();
m_values_container->set_layout<GUI::HorizontalBoxLayout>();
m_values_container->set_fixed_height(10);
m_volume_value = m_values_container->add<GUI::Label>(String::number(m_track_manager.current_track().volume()));
m_octave_value = m_values_container->add<GUI::Label>(String::number(m_track_manager.octave()));
m_knobs_container = add<GUI::Widget>();
m_knobs_container->set_layout<GUI::HorizontalBoxLayout>();
// FIXME: Implement vertical flipping in GUI::Slider, not here.
m_volume_knob = m_knobs_container->add<GUI::VerticalSlider>();
m_volume_knob->set_range(0, volume_max);
m_volume_knob->set_value(volume_max - m_track_manager.current_track().volume());
m_volume_knob->set_step(10);
m_volume_knob->on_change = [this](int value) {
int new_volume = volume_max - value;
if (m_change_underlying)
m_track_manager.current_track().set_volume(new_volume);
VERIFY(new_volume == m_track_manager.current_track().volume());
m_volume_value->set_text(String::number(new_volume));
};
m_octave_knob = m_knobs_container->add<GUI::VerticalSlider>();
m_octave_knob->set_tooltip("Z: octave down, X: octave up");
m_octave_knob->set_range(octave_min - 1, octave_max - 1);
m_octave_knob->set_value((octave_max - 1) - (m_track_manager.octave() - 1));
m_octave_knob->set_step(1);
m_octave_knob->on_change = [this](int value) {
int new_octave = octave_max - value;
if (m_change_underlying)
m_main_widget.set_octave_and_ensure_note_change(new_octave);
VERIFY(new_octave == m_track_manager.octave());
m_octave_value->set_text(String::number(new_octave));
};
for (auto& raw_parameter : m_track_manager.current_track().synth()->parameters()) {
// The synth has range and enum parameters
switch (raw_parameter.type()) {
case LibDSP::ParameterType::Range: {
auto& parameter = static_cast<LibDSP::ProcessorRangeParameter&>(raw_parameter);
m_synth_values.append(m_values_container->add<GUI::Label>(String::number(static_cast<double>(parameter.value()))));
auto& parameter_knob_value = m_synth_values.last();
m_synth_labels.append(m_labels_container->add<GUI::Label>(String::formatted("Synth: {}", parameter.name())));
m_synth_knobs.append(m_knobs_container->add<ProcessorParameterSlider>(Orientation::Vertical, parameter, parameter_knob_value));
break;
}
case LibDSP::ParameterType::Enum: {
// FIXME: We shouldn't do that, but we know the synth and it is nice
auto& parameter = static_cast<LibDSP::ProcessorEnumParameter<LibDSP::Synthesizers::Waveform>&>(raw_parameter);
// The value is empty for enum parameters
m_synth_values.append(m_values_container->add<GUI::Label>(String::empty()));
m_synth_labels.append(m_labels_container->add<GUI::Label>(String::formatted("Synth: {}", parameter.name())));
auto enum_strings = Vector<String> { "Sine", "Triangle", "Square", "Saw", "Noise" };
m_synth_knobs.append(m_knobs_container->add<ProcessorParameterDropdown<LibDSP::Synthesizers::Waveform>>(parameter, move(enum_strings)));
m_synth_waveform = static_cast<ProcessorParameterDropdown<LibDSP::Synthesizers::Waveform>&>(m_synth_knobs.last());
break;
}
default:
VERIFY_NOT_REACHED();
}
}
for (auto& raw_parameter : m_track_manager.current_track().delay()->parameters()) {
// FIXME: We shouldn't do that, but we know the effect and it's nice.
auto& parameter = static_cast<LibDSP::ProcessorRangeParameter&>(raw_parameter);
m_delay_values.append(m_values_container->add<GUI::Label>(String::number(static_cast<double>(parameter.value()))));
auto& parameter_knob_value = m_delay_values.last();
m_delay_labels.append(m_labels_container->add<GUI::Label>(String::formatted("Delay: {}", parameter.name())));
m_delay_knobs.append(m_knobs_container->add<ProcessorParameterSlider>(Orientation::Vertical, parameter, parameter_knob_value));
}
}
void KnobsWidget::cycle_waveform()
{
m_synth_waveform->set_selected_index((m_synth_waveform->selected_index() + 1) % m_synth_waveform->model()->row_count());
}
void KnobsWidget::update_knobs()
{
// FIXME: This is needed because when the slider is changed normally, we
// need to change the underlying value, but if the keyboard was used, we
// need to change the slider without changing the underlying value.
m_change_underlying = false;
m_volume_knob->set_value(volume_max - m_track_manager.current_track().volume());
m_octave_knob->set_value(octave_max - m_track_manager.octave());
m_change_underlying = true;
}
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