main menu: wrap around correctly

src/navigation/main_menu.rs

@@ -2,7 +2,7 @@ use crate::{display::primary_lcd::PrimaryLcdDisplay, navigation::inputs::Inputs}
 
 use alloc::format;
 use embedded_graphics::mono_font::MonoTextStyle;
-use embedded_graphics::mono_font::ascii::FONT_6X10;
+use embedded_graphics::mono_font::ascii::FONT_10X20;
 use embedded_graphics::pixelcolor::Rgb565;
 use embedded_graphics::prelude::Point;
 use embedded_graphics::prelude::RgbColor;
@@ -17,13 +17,16 @@ pub struct MainMenu {
 }
 
 impl super::navigation::Displayable for MainMenu {
-    fn display(&self, display: &mut PrimaryLcdDisplay<'static>) -> impl core::future::Future<Output = ()> + Send {
-        let style = MonoTextStyle::new(&FONT_6X10, Rgb565::WHITE);
-        let selected_style = MonoTextStyle::new(&FONT_6X10, Rgb565::BLUE);
+    fn display(
+        &self,
+        display: &mut PrimaryLcdDisplay<'static>,
+    ) -> impl core::future::Future<Output = ()> + Send {
+        let style = MonoTextStyle::new(&FONT_10X20, Rgb565::WHITE);
+        let selected_style = MonoTextStyle::new(&FONT_10X20, Rgb565::BLUE);
 
         Text::new(
             &format!("Last card"),
-            Point::new(20, 240),
+            Point::new(40, 40),
             if self.selected == 0 {
                 selected_style
             } else {
@@ -35,7 +38,7 @@ impl super::navigation::Displayable for MainMenu {
 
         Text::new(
             &format!("Journal"),
-            Point::new(20, 250),
+            Point::new(40, 60),
             if self.selected == 1 {
                 selected_style
             } else {
@@ -47,8 +50,8 @@ impl super::navigation::Displayable for MainMenu {
 
         Text::new(
             &format!("Settings"),
-            Point::new(20, 260),
-            if self.selected == 1 {
+            Point::new(40, 80),
+            if self.selected == 2 {
                 selected_style
             } else {
                 style

src/navigation/navigation.rs

@@ -8,13 +8,17 @@ use embassy_time::{Duration, Timer};
 const DEBOUNCE_DURATION_MILLIS: u64 = 100;
 
 pub trait Displayable {
-    fn display(&self, display: &mut PrimaryLcdDisplay<'static>) -> impl core::future::Future<Output = ()> + Send;
+    fn display(
+        &self,
+        display: &mut PrimaryLcdDisplay<'static>,
+    ) -> impl core::future::Future<Output = ()> + Send;
 }
 
 #[embassy_executor::task]
 pub async fn run(mut inputs: Inputs, display: &'static mut PrimaryLcdDisplay<'static>) {
     let mut state = MainMenu { selected: 0 };
 
+    state.display(display).await;
     log::info!("starting navigation");
     loop {
         log::info!("await button press");
@@ -32,7 +36,11 @@ pub async fn run(mut inputs: Inputs, display: &'static mut PrimaryLcdDisplay<'st
         let value = match selection {
             Either6::First(_) => {
                 log::info!("up pressed");
-                (state.selected.wrapping_sub(1)) % MAX_SELECTED
+                if (state.selected - 1) < 0 {
+                    MAX_SELECTED - 1
+                } else {
+                    state.selected - 1
+                }
             }
             Either6::Second(_) => {
                 log::info!("down pressed");