Method OnClick

src/music_gui.cpp:803–857

	}

	void OnClick([[maybe_unused]] Point pt, WidgetID widget, [[maybe_unused]] int click_count) override
	{
		switch (widget) {
			case WID_M_PREV: // skip to prev
				_music.Prev();
				break;

			case WID_M_NEXT: // skip to next
				_music.Next();
				break;

			case WID_M_STOP: // stop playing
				_music.Stop();
				break;

			case WID_M_PLAY: // start playing
				_music.Play();
				break;

			case WID_M_MUSIC_VOL: case WID_M_EFFECT_VOL: { // volume sliders
				uint8_t &vol = (widget == WID_M_MUSIC_VOL) ? _settings_client.music.music_vol : _settings_client.music.effect_vol;
				if (ClickSliderWidget(this->GetWidget<NWidgetBase>(widget)->GetCurrentRect(), pt, 0, INT8_MAX, 0, vol)) {
					if (widget == WID_M_MUSIC_VOL) {
						MusicDriver::GetInstance()->SetVolume(vol);
					} else {
						SetEffectVolume(vol);
					}
					this->SetWidgetDirty(widget);
					SetWindowClassesDirty(WC_GAME_OPTIONS);
				}

				if (click_count > 0) this->mouse_capture_widget = widget;
				break;
			}

			case WID_M_SHUFFLE: // toggle shuffle
				if (_music.IsShuffle()) {
					_music.Unshuffle();
				} else {
					_music.Shuffle();
				}
				this->SetWidgetLoweredState(WID_M_SHUFFLE, _music.IsShuffle());
				this->SetWidgetDirty(WID_M_SHUFFLE);
				break;

			case WID_M_PROGRAMME: // show track selection
				ShowMusicTrackSelection();
				break;

			case WID_M_ALL: case WID_M_OLD: case WID_M_NEW:
			case WID_M_EZY: case WID_M_CUSTOM1: case WID_M_CUSTOM2: // playlist
				_music.ChangePlaylist((MusicSystem::PlaylistChoices)(widget - WID_M_ALL));
				break;
		}
	}
};

static constexpr std::initializer_list<NWidgetPart> _nested_music_window_widgets = {