geometry: implement width/height/left/top/right/bottom operations for rectangles

src/geometry.rs

@@ -1,5 +1,6 @@
 use std::fmt::{Debug, Formatter};
 use std::marker::PhantomData;
+use std::ops::Sub;
 
 pub trait CoordinateSpace {}
 
@@ -88,12 +89,12 @@ pub type VirtualCoordinates = Coordinates<u8, Virtual>;
 pub type PhysicalCoordinates = Coordinates<usize, Physical>;
 
 #[derive(PartialEq, Eq, Copy, Clone, Debug, PartialOrd)]
-pub struct Rectangle<CoordData: CoordLimits<Data = CoordData>, Space: CoordinateSpace> {
+pub struct Rectangle<CoordData: CoordLimits<Data = CoordData> + Clone + Copy, Space: CoordinateSpace> {
     pub top_left: Coordinates<CoordData, Space>,
     pub bottom_right: Coordinates<CoordData, Space>
 }
 
-impl<CoordData: CoordLimits<Data = CoordData>, Space: CoordinateSpace> Rectangle<CoordData, Space> {
+impl<CoordData: CoordLimits<Data = CoordData> + Sub<Output=CoordData> + Clone + Copy, Space: CoordinateSpace> Rectangle<CoordData, Space> {
     pub fn new(top_left: Coordinates<CoordData, Space>, bottom_right: Coordinates<CoordData, Space>) -> Self {
         assert!(top_left.x <= bottom_right.x);
         assert!(top_left.y <= bottom_right.y);
@@ -109,4 +110,28 @@ impl<CoordData: CoordLimits<Data = CoordData>, Space: CoordinateSpace> Rectangle
             bottom_right: Coordinates::<CoordData, Space>::bottom_right()
         }
     }
+
+    pub fn width(&self) -> CoordData {
+        self.bottom_right.x.clone() - self.top_left.x.clone()
+    }
+
+    pub fn height(&self) -> CoordData {
+        self.bottom_right.y.clone() - self.top_left.y.clone()
+    }
+
+    pub const fn left(&self) -> CoordData {
+        self.top_left.x
+    }
+
+    pub const fn top(&self) -> CoordData {
+        self.top_left.y
+    }
+
+    pub const fn right (&self) -> CoordData {
+        self.bottom_right.x
+    }
+
+    pub const fn bottom(&self) -> CoordData {
+        self.bottom_right.y
+    }
 }