dirty display refresh hack

src/display.rs

@@ -1,12 +1,11 @@
 use embedded_graphics::{
-    mono_font::{
-        MonoTextStyle,
-        ascii::{FONT_10X20},
-    },
+    mono_font::{MonoTextStyle, ascii::FONT_10X20},
     pixelcolor::BinaryColor,
     prelude::{DrawTarget, Point, *},
+    primitives::{PrimitiveStyle, Rectangle},
     text::Text,
 };
+use heapless::{String, format};
 
 pub struct CoMoDisplay<D: DrawTarget<Color = BinaryColor>> {
     display: D,
@@ -17,12 +16,17 @@ impl<D: DrawTarget<Color = BinaryColor>> CoMoDisplay<D> {
         Self { display }
     }
 
-    pub fn draw(&mut self) -> Result<(), D::Error> {
+    pub fn draw(&mut self, ips: f32) -> Result<(), D::Error> {
         let text_style = MonoTextStyle::new(&FONT_10X20, BinaryColor::On);
 
-        self.display.clear(BinaryColor::Off)?;
+        // self.display.clear(BinaryColor::Off)?;
+        Rectangle::new(Point::new(0, 0), Size::new(200, 50))
+            .into_styled(PrimitiveStyle::with_fill(BinaryColor::Off))
+            .draw(&mut self.display)?;
 
-        Text::new("18,6 Ips", Point::new(50, 40), text_style).draw(&mut self.display)?;
+        let txt: String<10> = format!("{0:.1} Ips", ips).unwrap();
+
+        Text::new(txt.as_str(), Point::new(50, 40), text_style).draw(&mut self.display)?;
 
         Ok(())
     }