started work on the drawing part

src/drawing/mod.rs

@@ -0,0 +1,61 @@
+
+#[derive(Clone, Copy)]
+pub enum Displayorientation {
+    /// No rotation
+    Rotate0,
+    /// Rotate by 90 degrees clockwise
+    Rotate90,
+    /// Rotate by 180 degrees clockwise
+    Rotate180,
+    /// Rotate 270 degrees clockwise
+    Rotate270,
+}
+/*
+//WARNING: Adapt for bigger sized displays!
+pub struct Display_Description {
+    width: u16,
+    height: u16,
+    buffer_size: u16,
+}
+
+impl Display_Description {
+    pub fn new(width: u16, height: u16, buffer_size: u16) -> Display_Description {
+
+    }
+}
+
+pub enum Display {
+    Eink_42_BW,
+}
+
+impl Display {
+    /// Gets the Dimensions of a dipslay in the following order:
+    /// - Width
+    /// - Height
+    /// - Neccessary Buffersize
+    pub fn get_dimensions(&self) -> (u16, u16, u16) {
+        match self {
+            Display::Eink_42_BW => (400, 300, 15000)
+        }
+    }
+}
+
+pub struct Graphics {
+    width: u16,
+    height: u16,
+    rotate: Displayorientation,
+    buffer: [u8; 15000],   
+}
+
+
+
+impl Graphics {
+    /// width needs to be a multiple of 8!
+    pub fn new(width: u16, height: u16) -> Graphics{
+        Graphics {width, height, rotate: Displayorientation::Rotate0}
+    }
+
+    pub fn clear(&mut self) {
+        self.buffer = &mut [0u8; 1000]
+    }
+}*/

src/lib.rs

@@ -56,6 +56,7 @@ use hal::{
     spi::{Mode, Phase, Polarity},
 };
 
+pub mod drawing;
 pub mod epd4in2;
 use epd4in2::*;