game-of-life-gui/src/widgets/preferences.rs

use adw::prelude::{WidgetExt, PreferencesRowExt, PreferencesPageExt, PreferencesGroupExt, PreferencesWindowExt, GtkWindowExt, ComboRowExt, SettingsExt};
use gtk::gio::Settings;
use relm4::*;
use crate::config;

#[derive(Debug)]
pub enum PreferencesMsg {
    Show,
    Close,
    SetTheme(u32),
}

#[derive(Debug)]
pub enum PreferencesOutput {
}

pub struct PreferencesModel {
    prefwindow: adw::PreferencesWindow,
    settings: Settings,
    style: adw::StyleManager,
}

#[relm4::component(pub)]
impl SimpleComponent for PreferencesModel {
    type Widgets = PreferencesWidgets;
    type Init = gtk::Window;
    type Input = PreferencesMsg;
    type Output = ();

    view! {
        adw::PreferencesWindow {
            set_transient_for: Some(&parent_window),
            set_modal: true,
            set_search_enabled: false,
            set_width_request: 400,
            set_height_request: 600,
            connect_close_request[sender] => move |_| {
                sender.input(PreferencesMsg::Close);
                gtk::Inhibit(true)
            },
            add = &adw::PreferencesPage {
                add = &adw::PreferencesGroup {
                    /*add_suffix = &gtk::Switch {
                      set_valign: gtk::Align::Center,
                      connect_state_set[sender] => move |_, b| {
                      sender.output(PreferencesOutput::SetDark(b));
                      gtk::Inhibit(true)
                      },
                      },*/
                    add = &adw::ComboRow {
                        set_title: "Theme",
                        set_valign: gtk::Align::Center,
                        set_model: Some(&gtk::StringList::new(&["Light", "Dark", "Default"])),
                        set_selected: model.settings.uint("theme-selected"),
                        connect_selected_notify[sender] => move |item| {
                            sender.input(PreferencesMsg::SetTheme(item.selected()));
                        },
                    }
                }
            }
        }
    }
    fn init(
        parent_window: Self::Init,
        root: &Self::Root,
        sender: ComponentSender<Self>,
        ) -> ComponentParts<Self> {
        let settings = Settings::new(config::APP_ID);
        let style = adw::StyleManager::default();
        let model = PreferencesModel { prefwindow: root.clone(), settings, style};

        let widgets = view_output!();

        ComponentParts { model, widgets }
    }
    fn update(&mut self, msg: Self::Input, _sender: ComponentSender<Self>) {
        match msg {
            PreferencesMsg::Show => {
                self.prefwindow.show();
            }
            PreferencesMsg::Close => {
                self.prefwindow.hide();
            }
            PreferencesMsg::SetTheme(theme) => {
                self.settings.set_uint("theme-selected", theme).unwrap();
                let theme = match theme {
                    0 => adw::ColorScheme::PreferLight,
                    1 => adw::ColorScheme::PreferDark,
                    2 => adw::ColorScheme::Default,
                    _ => panic!(),
                };
                self.style.set_color_scheme(theme);
            }


        }
    }
}