add the theme selector

真tm难，但是之前遇到的问题大部分都解决了，在考虑要不要后边把这个软件给重构一下？

src/main.rs

@@ -9,6 +9,9 @@ fn main() {
         win_sparkle_set_appcast_url(
             "https://dl.wuembed.com/hardware_tk/appcast.xml\0".as_ptr() as *const i8
         );
+        win_sparkle_set_eddsa_public_key(
+            "pXr0FyLTCvtX2BP7d/i3Ot8T9hL+ODBQforwfBp2oLo=\0".as_ptr() as *const i8
+        );
         win_sparkle_init();
     }
     ui::main_window::main_window();

src/ui/home_page.rs

@@ -3,24 +3,63 @@ use iced::{Length, alignment::Horizontal, widget::Column};
 #[allow(unused_imports)]
 use crate::ui::main_window::{MainWindowMsg, TabContent};
 
-#[derive(Default)]
-pub struct HomePage {}
+pub struct HomePage {
+    step_dir: String,
+    pub theme: iced::Theme,
+}
+impl Default for HomePage {
+    fn default() -> Self {
+        Self {
+            step_dir: crate::utils::app_settings::get_step_dir().unwrap(),
+            theme: Default::default(),
+        }
+    }
+}
 #[derive(Debug, Default, Clone, PartialEq, Eq)]
 pub enum HomePageMsg {
     #[default]
     Nothing,
+    CheckUpdate,
+    OpenStepDir,
+    ChooseStepDir,
 }
 
 impl TabContent for HomePage {
     fn content(&self) -> iced::Element<'_, MainWindowMsg> {
-        let btn = iced::widget::button("HomePage")
-            .on_press(MainWindowMsg::HomePage(HomePageMsg::Nothing));
-
+        let info = iced::widget::row![
+            iced::widget::text("版本："),
+            iced::widget::text(env!("CARGO_PKG_VERSION")),
+            iced::widget::horizontal_space(),
+            iced::widget::button("检查更新")
+                .on_press(MainWindowMsg::HomePage(HomePageMsg::CheckUpdate)),
+        ];
+        let stp_path_set = iced::widget::row![
+            iced::widget::text("Step下载路径："),
+            iced::widget::text(self.step_dir.clone()),
+            iced::widget::button("打开")
+                .on_press(MainWindowMsg::HomePage(HomePageMsg::OpenStepDir)),
+            iced::widget::button("浏览")
+                .on_press(MainWindowMsg::HomePage(HomePageMsg::ChooseStepDir))
+        ]
+        .spacing(16.0);
+        let theme = iced::widget::row![
+            iced::widget::text("主题选择："),
+            iced::widget::pick_list(
+                iced::Theme::ALL,
+                Some(&self.theme),
+                MainWindowMsg::ThemeChanged
+            )
+            .width(480),
+        ]
+        .spacing(16.0);
         Column::new()
             .align_x(Horizontal::Left)
             .width(Length::Fill)
             .height(Length::Fill)
-            .push(btn)
+            .push(info)
+            .push(stp_path_set)
+            .push(theme)
+            .spacing(5.0)
             .into()
     }
 
@@ -31,6 +70,9 @@ impl TabContent for HomePage {
             HomePageMsg::Nothing => {
                 println!("This way ok.");
             }
+            _ => {
+                println!("Is the message you should process ?  =====>>  {msg:?}");
+            }
         }
     }
 }

src/ui/main_window.rs

@@ -1,4 +1,5 @@
 use crate::ui::db_browser::DbBrowserMsg;
+use crate::ui::home_page::HomePage;
 use crate::ui::home_page::HomePageMsg;
 use crate::ui::jlc_downloader::JlcDownloaderMsg;
 use crate::ui::part_viewer::PartViewerMsg;
@@ -25,6 +26,7 @@ use iced::{
     widget::{Column, Container, Text, column},
 };
 use std::fmt::Display;
+use std::ops::Index;
 
 #[allow(dead_code)]
 struct MainWindow {
@@ -38,11 +40,17 @@ struct MainWindow {
 }
 impl Default for MainWindow {
     fn default() -> Self {
+        let mut home_page = HomePage::default();
+        let mut theme = Theme::default();
+        if let Ok(saved_theme) = crate::utils::app_settings::get_curr_theme() {
+            theme = Theme::ALL[saved_theme as usize % Theme::ALL.len()].clone();
+            home_page.theme = theme.clone();
+        }
         Self {
             title: "HardwareToolkit".into(),
-            theme: Default::default(),
+            theme,
             curr_tab: Default::default(),
-            home_page: Default::default(),
+            home_page,
             jlc_downloader: Default::default(),
             db_browser: Default::default(),
             part_viewer: Default::default(),
@@ -52,6 +60,7 @@ impl Default for MainWindow {
 
 pub fn main_window() {
     let _ = iced::application(MainWindow::default, MainWindow::update, MainWindow::view)
+        .theme(MainWindow::theme)
         .default_font(iced::Font::with_name("微软雅黑"))
         .title(MainWindow::title)
         .run();
@@ -93,27 +102,18 @@ impl Display for TabId {
         )
     }
 }
-fn btn_active_style(_theme: &Theme, _status: Status) -> Style {
-    let mut s = Style::default();
-    let bgcolor = iced::Color::from_rgba8(30, 200, 200, 1.0);
-    s.background = Some(iced::Background::Color(bgcolor));
-    s
-}
-fn btn_deactive_style(_theme: &Theme, _status: Status) -> Style {
-    let mut s = Style::default();
-    let bgcolor = iced::Color::from_rgba8(220, 200, 100, 1.0);
-    s.background = Some(iced::Background::Color(bgcolor));
-    s
-}
 impl MainWindow {
     fn title(&self) -> String {
         self.title.clone()
     }
+    fn theme(&self) -> Theme {
+        self.theme.clone()
+    }
     fn create_tab_btn(&self, tab: TabId) -> Element<'_, MainWindowMsg> {
         let bstyle = if self.curr_tab == tab {
-            btn_active_style
+            button::danger
         } else {
-            btn_deactive_style
+            button::primary
         };
         let txt = format!("{tab}");
 
@@ -125,7 +125,10 @@ impl MainWindow {
         println!("Process the msg: {msg:?}");
         match msg {
             MainWindowMsg::ThemeChanged(theme) => {
-                self.theme = theme;
+                self.theme = theme.clone();
+                if let Some(idx) = Theme::ALL.iter().position(|x| x == &theme) {
+                    crate::utils::app_settings::set_curr_theme(idx as u32).unwrap();
+                }
             }
             MainWindowMsg::TitleChanged(title) => {
                 self.title = title;

src/utils/app_settings.rs

@@ -47,6 +47,27 @@ pub fn set_step_dir(path: &str) -> Result<(), anyhow::Error> {
     Ok(())
 }
 
+#[allow(dead_code)]
+pub fn set_curr_theme(c: u32) -> Result<(), anyhow::Error> {
+    let reg = registry::Hive::CurrentUser.create(APP_REG_PATH, Security::AllAccess)?;
+    reg.set_value("curr_theme", &registry::Data::U32(c))?;
+    Ok(())
+}
+
+#[allow(dead_code)]
+pub fn get_curr_theme() -> Result<u32, anyhow::Error> {
+    let reg = registry::Hive::CurrentUser.open(APP_REG_PATH, Security::AllAccess)?;
+    match reg.value("curr_theme")? {
+        registry::Data::U32(v) => {
+            return Ok(v);
+        }
+        _ => {
+            log::info!("The curr_page is an empty value.");
+        }
+    }
+    Ok(0)
+}
+
 #[allow(dead_code)]
 pub fn set_curr_page(c: u32) -> Result<(), anyhow::Error> {
     let reg = registry::Hive::CurrentUser.create(APP_REG_PATH, Security::AllAccess)?;

src/utils/winsparkle.rs

@@ -35,6 +35,10 @@ unsafe extern "C" {
     /// returns 1 if valid DSA public key provided, 0 otherwise.
     pub fn win_sparkle_set_dsa_pub_pem(dsa_pub_pem: *const i8) -> i32;
 
+    /// Set EDDSA public key.
+    /// The function above should not be used.
+    pub unsafe fn win_sparkle_set_eddsa_public_key(eddsa_pub_pem: *const i8) -> i32;
+
     /// Set the path in the registry where WinSparkle will store its settings.
     ///
     /// This sets the path where WinSparkle will store its settings in the registry.