Fix clippy warnings

Author: yurinnick

src/epd4in2bc/mod.rs

@@ -318,8 +318,8 @@ where
 
         self.send_data(spi, &[(x >> 8) as u8])?;
         self.send_data(spi, &[(x & 0xf8) as u8])?; // x should be the multiple of 8, the last 3 bit will always be ignored
-        self.send_data(spi, &[((x & 0xf8) + width - 1 >> 8) as u8])?;
-        self.send_data(spi, &[((x & 0xf8) + width - 1 | 0x07) as u8])?;
+        self.send_data(spi, &[(((x & 0xf8) + width - 1) >> 8) as u8])?;
+        self.send_data(spi, &[(((x & 0xf8) + width - 1) | 0x07) as u8])?;
 
         self.send_data(spi, &[(y >> 8) as u8])?;
         self.send_data(spi, &[(y & 0xff) as u8])?;

src/graphics.rs

@@ -5,9 +5,10 @@ use core::marker::PhantomData;
 use embedded_graphics_core::prelude::*;
 
 /// Display rotation, only 90° increments supported
-#[derive(Clone, Copy)]
+#[derive(Default, Clone, Copy)]
 pub enum DisplayRotation {
     /// No rotation
+    #[default]
     Rotate0,
     /// Rotate by 90 degrees clockwise
     Rotate90,
@@ -17,12 +18,6 @@ pub enum DisplayRotation {
     Rotate270,
 }
 
-impl Default for DisplayRotation {
-    fn default() -> Self {
-        DisplayRotation::Rotate0
-    }
-}
-
 /// DisplayMode carries modes avaiable for color representaion on TriColor displays
 /// Each mode contains list of (bw, color) pairs, where bw - value for BW layer, color - value for Chromatic layer
 #[repr(u8)]

src/traits.rs

@@ -11,21 +11,16 @@ pub(crate) trait Command: Copy {
 }
 
 /// Seperates the different LUT for the Display Refresh process
-#[derive(Debug, Clone, PartialEq, Eq, Copy)]
+#[derive(Debug, Default, Clone, PartialEq, Eq, Copy)]
 pub enum RefreshLut {
     /// The "normal" full Lookuptable for the Refresh-Sequence
+    #[default]
     Full,
     /// The quick LUT where not the full refresh sequence is followed.
     /// This might lead to some
     Quick,
 }
 
-impl Default for RefreshLut {
-    fn default() -> Self {
-        RefreshLut::Full
-    }
-}
-
 pub(crate) trait InternalWiAdditions<SPI, CS, BUSY, DC, RST, DELAY>
 where
     SPI: Write<u8>,