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Code Issues Activity Actions

Piano: Propagate errors in PlayerWidget

Browse source 
Co-authored-by: Sam Atkins <atkinssj@serenityos.org>
This commit is contained in:
Keir Davis 2022-12-28 21:43:35 +00:00 • committed by Andreas Kling
parent 4311fd2774
commit 797a53b307
5 changed files with 80 additions and 46 deletions
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46
Userland/Applications/Piano/MainWidget.cpp
View file

@ -19,53 +19,67 @@
#include <LibGUI/Menu.h>
#include <LibGUI/TabWidget.h>
ErrorOr<NonnullRefPtr<MainWidget>> MainWidget::try_create(TrackManager& manager, AudioPlayerLoop& loop)
{
auto widget = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) MainWidget(manager, loop)));
TRY(widget->initialize());
return widget;
}
MainWidget::MainWidget(TrackManager& track_manager, AudioPlayerLoop& loop)
: m_track_manager(track_manager)
, m_audio_loop(loop)
{
set_layout<GUI::VerticalBoxLayout>();
}
ErrorOr<void> MainWidget::initialize()
{
(void)TRY(try_set_layout<GUI::VerticalBoxLayout>());
layout()->set_spacing(2);
layout()->set_margins(2);
set_fill_with_background_color(true);
m_wave_widget = add<WaveWidget>(track_manager);
m_wave_widget = TRY(try_add<WaveWidget>(m_track_manager));
m_wave_widget->set_fixed_height(100);
m_tab_widget = add<GUI::TabWidget>();
m_roll_widget = m_tab_widget->add_tab<RollWidget>("Piano Roll", track_manager);
m_tab_widget = TRY(try_add<GUI::TabWidget>());
m_roll_widget = TRY(m_tab_widget->try_add_tab<RollWidget>("Piano Roll", m_track_manager));
m_roll_widget->set_fixed_height(300);
m_tab_widget->add_tab<SamplerWidget>("Sampler", track_manager);
(void)TRY(m_tab_widget->try_add_tab<SamplerWidget>("Sampler", m_track_manager));
m_player_widget = TRY(try_add<PlayerWidget>(m_track_manager, m_audio_loop));
m_player_widget = add<PlayerWidget>(track_manager, loop);
m_keys_and_knobs_container = add<GUI::Widget>();
m_keys_and_knobs_container->set_layout<GUI::HorizontalBoxLayout>();
m_keys_and_knobs_container = TRY(try_add<GUI::Widget>());
(void)TRY(m_keys_and_knobs_container->try_set_layout<GUI::HorizontalBoxLayout>());
m_keys_and_knobs_container->layout()->set_spacing(2);
m_keys_and_knobs_container->set_fixed_height(130);
m_keys_and_knobs_container->set_fill_with_background_color(true);
m_keys_widget = m_keys_and_knobs_container->add<KeysWidget>(track_manager.keyboard());
m_keys_widget = TRY(m_keys_and_knobs_container->try_add<KeysWidget>(m_track_manager.keyboard()));
m_knobs_widget = m_keys_and_knobs_container->add<KnobsWidget>(track_manager, *this);
m_knobs_widget = TRY(m_keys_and_knobs_container->try_add<KnobsWidget>(m_track_manager, *this));
m_roll_widget->set_keys_widget(m_keys_widget);
return {};
}
void MainWidget::add_track_actions(GUI::Menu& menu)
ErrorOr<void> MainWidget::add_track_actions(GUI::Menu& menu)
{
menu.add_action(GUI::Action::create("&Add Track", { Mod_Ctrl, Key_T }, Gfx::Bitmap::load_from_file("/res/icons/16x16/plus.png"sv).release_value_but_fixme_should_propagate_errors(), [&](auto&) {
TRY(menu.try_add_action(GUI::Action::create("&Add Track", { Mod_Ctrl, Key_T }, TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/plus.png"sv)), [&](auto&) {
m_player_widget->add_track();
}));
})));
menu.add_action(GUI::Action::create("&Next Track", { Mod_Ctrl, Key_N }, Gfx::Bitmap::load_from_file("/res/icons/16x16/go-last.png"sv).release_value_but_fixme_should_propagate_errors(), [&](auto&) {
TRY(menu.try_add_action(GUI::Action::create("&Next Track", { Mod_Ctrl, Key_N }, TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/go-last.png"sv)), [&](auto&) {
turn_off_pressed_keys();
m_player_widget->next_track();
turn_on_pressed_keys();
m_knobs_widget->update_knobs();
}));
})));
return {};
}
// FIXME: There are some unnecessary calls to update() throughout this program,

7
Userland/Applications/Piano/MainWidget.h
View file

@ -23,11 +23,12 @@ class KnobsWidget;
class PlayerWidget;
class MainWidget final : public GUI::Widget {
C_OBJECT(MainWidget)
C_OBJECT_ABSTRACT(MainWidget)
public:
static ErrorOr<NonnullRefPtr<MainWidget>> try_create(TrackManager&, AudioPlayerLoop&);
virtual ~MainWidget() override = default;
void add_track_actions(GUI::Menu&);
ErrorOr<void> add_track_actions(GUI::Menu&);
void set_octave_and_ensure_note_change(DSP::Keyboard::Direction);
void set_octave_and_ensure_note_change(int);
@ -35,6 +36,8 @@ public:
private:
explicit MainWidget(TrackManager&, AudioPlayerLoop&);
ErrorOr<void> initialize();
virtual void keydown_event(GUI::KeyEvent&) override;
virtual void keyup_event(GUI::KeyEvent&) override;
virtual void custom_event(Core::CustomEvent&) override;

46
Userland/Applications/Piano/PlayerWidget.cpp
View file

@ -16,25 +16,37 @@
#include <LibGUI/ItemListModel.h>
#include <LibGUI/Label.h>
ErrorOr<NonnullRefPtr<PlayerWidget>> PlayerWidget::create(TrackManager& manager, AudioPlayerLoop& loop)
{
auto widget = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) PlayerWidget(manager, loop)));
widget->m_play_icon = TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/play.png"sv));
widget->m_pause_icon = TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/pause.png"sv));
widget->m_back_icon = TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/go-back.png"sv)); // Go back a note
widget->m_next_icon = TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/go-forward.png"sv)); // Advance a note
widget->m_add_track_icon = TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/plus.png"sv));
widget->m_next_track_icon = TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/go-last.png"sv));
TRY(widget->initialize());
return widget;
}
PlayerWidget::PlayerWidget(TrackManager& manager, AudioPlayerLoop& loop)
: m_track_manager(manager)
, m_audio_loop(loop)
{
set_layout<GUI::HorizontalBoxLayout>();
}
ErrorOr<void> PlayerWidget::initialize()
{
(void)TRY(try_set_layout<GUI::HorizontalBoxLayout>());
set_fill_with_background_color(true);
m_track_number_choices.append("1");
TRY(m_track_number_choices.try_append("1"));
m_play_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/play.png"sv).release_value_but_fixme_should_propagate_errors();
m_pause_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/pause.png"sv).release_value_but_fixme_should_propagate_errors();
m_back_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/go-back.png"sv).release_value_but_fixme_should_propagate_errors(); // Go back a note
m_next_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/go-forward.png"sv).release_value_but_fixme_should_propagate_errors(); // Advance a note
m_add_track_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/plus.png"sv).release_value_but_fixme_should_propagate_errors();
m_next_track_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/go-last.png"sv).release_value_but_fixme_should_propagate_errors();
RefPtr<GUI::Label> label = add<GUI::Label>("Track");
RefPtr<GUI::Label> label = TRY(try_add<GUI::Label>("Track"));
label->set_max_width(75);
m_track_dropdown = add<GUI::ComboBox>();
m_track_dropdown = TRY(try_add<GUI::ComboBox>());
m_track_dropdown->set_max_width(75);
m_track_dropdown->set_model(*GUI::ItemListModel<DeprecatedString>::create(m_track_number_choices));
m_track_dropdown->set_only_allow_values_from_model(true);
@ -44,7 +56,7 @@ PlayerWidget::PlayerWidget(TrackManager& manager, AudioPlayerLoop& loop)
m_track_manager.set_current_track(model_index.row());
};
m_add_track_button = add<GUI::Button>();
m_add_track_button = TRY(try_add<GUI::Button>());
m_add_track_button->set_icon(*m_add_track_icon);
m_add_track_button->set_fixed_width(30);
m_add_track_button->set_tooltip("Add Track");
@ -53,7 +65,7 @@ PlayerWidget::PlayerWidget(TrackManager& manager, AudioPlayerLoop& loop)
add_track();
};
m_next_track_button = add<GUI::Button>();
m_next_track_button = TRY(try_add<GUI::Button>());
m_next_track_button->set_icon(*m_next_track_icon);
m_next_track_button->set_fixed_width(30);
m_next_track_button->set_tooltip("Next Track");
@ -62,7 +74,7 @@ PlayerWidget::PlayerWidget(TrackManager& manager, AudioPlayerLoop& loop)
next_track();
};
m_play_button = add<GUI::Button>();
m_play_button = TRY(try_add<GUI::Button>());
m_play_button->set_icon(*m_pause_icon);
m_play_button->set_fixed_width(30);
m_play_button->set_tooltip("Play/Pause playback");
@ -77,7 +89,7 @@ PlayerWidget::PlayerWidget(TrackManager& manager, AudioPlayerLoop& loop)
}
};
m_back_button = add<GUI::Button>();
m_back_button = TRY(try_add<GUI::Button>());
m_back_button->set_icon(*m_back_icon);
m_back_button->set_fixed_width(30);
m_back_button->set_tooltip("Previous Note");
@ -86,7 +98,7 @@ PlayerWidget::PlayerWidget(TrackManager& manager, AudioPlayerLoop& loop)
m_track_manager.time_forward(-(sample_rate / (beats_per_minute / 60) / notes_per_beat));
};
m_next_button = add<GUI::Button>();
m_next_button = TRY(try_add<GUI::Button>());
m_next_button->set_icon(*m_next_icon);
m_next_button->set_fixed_width(30);
m_next_button->set_tooltip("Next Note");
@ -94,6 +106,8 @@ PlayerWidget::PlayerWidget(TrackManager& manager, AudioPlayerLoop& loop)
m_next_button->on_click = [this](unsigned) {
m_track_manager.time_forward((sample_rate / (beats_per_minute / 60) / notes_per_beat));
};
return {};
}
void PlayerWidget::add_track()

3
Userland/Applications/Piano/PlayerWidget.h
View file

@ -15,6 +15,7 @@ class TrackManager;
class PlayerWidget final : public GUI::Toolbar {
C_OBJECT(PlayerWidget)
public:
static ErrorOr<NonnullRefPtr<PlayerWidget>> create(TrackManager&, AudioPlayerLoop&);
virtual ~PlayerWidget() override = default;
void add_track();
@ -24,6 +25,8 @@ public:
private:
explicit PlayerWidget(TrackManager&, AudioPlayerLoop&);
ErrorOr<void> initialize();
TrackManager& m_track_manager;
AudioPlayerLoop& m_audio_loop;
Vector<DeprecatedString> m_track_number_choices;

24
Userland/Applications/Piano/main.cpp
View file

@ -41,7 +41,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
auto audio_loop = AudioPlayerLoop::construct(track_manager, need_to_write_wav, wav_writer);
auto app_icon = GUI::Icon::default_icon("app-piano"sv);
auto window = GUI::Window::construct();
auto window = TRY(GUI::Window::try_create());
auto main_widget = TRY(window->set_main_widget<MainWidget>(track_manager, audio_loop));
window->set_title("Piano");
window->resize(840, 600);
@ -53,8 +53,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
}));
main_widget_updater->start();
auto& file_menu = window->add_menu("&File");
file_menu.add_action(GUI::Action::create("Export", { Mod_Ctrl, Key_E }, TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/file-export.png"sv)), [&](const GUI::Action&) {
auto file_menu = TRY(window->try_add_menu("&File"));
TRY(file_menu->try_add_action(GUI::Action::create("Export", { Mod_Ctrl, Key_E }, TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/file-export.png"sv)), [&](const GUI::Action&) {
save_path = GUI::FilePicker::get_save_filepath(window, "Untitled", "wav");
if (!save_path.has_value())
return;
@ -71,19 +71,19 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
return;
}
need_to_write_wav = true;
}));
file_menu.add_separator();
file_menu.add_action(GUI::CommonActions::make_quit_action([](auto&) {
})));
TRY(file_menu->try_add_separator());
TRY(file_menu->try_add_action(GUI::CommonActions::make_quit_action([](auto&) {
GUI::Application::the()->quit();
return;
}));
})));
auto& edit_menu = window->add_menu("&Edit");
main_widget->add_track_actions(edit_menu);
auto edit_menu = TRY(window->try_add_menu("&Edit"));
TRY(main_widget->add_track_actions(edit_menu));
auto& help_menu = window->add_menu("&Help");
help_menu.add_action(GUI::CommonActions::make_command_palette_action(window));
help_menu.add_action(GUI::CommonActions::make_about_action("Piano", app_icon, window));
auto help_menu = TRY(window->try_add_menu("&Help"));
TRY(help_menu->try_add_action(GUI::CommonActions::make_command_palette_action(window)));
TRY(help_menu->try_add_action(GUI::CommonActions::make_about_action("Piano", app_icon, window)));
window->show();