Add component trait and vsplit

src/frame.rs

@@ -0,0 +1,82 @@
+use embedded_graphics::{pixelcolor::BinaryColor, prelude::*};
+use embedded_layout::View;
+
+pub trait Component {
+  fn set_top_left(&mut self, top_left: Point);
+  fn set_size(&mut self, size: Size);
+}
+
+pub struct Frame {
+  //drawable: Component,
+  pub weight: f32,
+}
+
+pub struct VSplit<T, U> {
+  pub top_left: Point,
+  pub size: Size,
+  pub left: T,
+  pub right: U,
+  pub ratio: f32,
+}
+
+impl<T, U> VSplit<T, U> {
+  pub fn new(left: T, right: U) -> Self {
+    VSplit {
+      top_left: Point::new(0, 0),
+      size: Size::new(0, 0),
+      left,
+      right,
+      ratio: 0.5,
+    }
+  }
+}
+
+impl<C, T, U> Component for VSplit<T, U>
+where
+  C: PixelColor + From<BinaryColor>,
+  T: Drawable<Color = C>,
+  U: Drawable<Color = C>,
+{
+  fn set_top_left(&mut self, top_left: Point) {
+    self.top_left = top_left;
+  }
+  fn set_size(&mut self, size: Size) {
+    self.size = size;
+  }
+}
+
+impl<C, T, U> Drawable for VSplit<T, U>
+where
+  C: PixelColor + From<BinaryColor>,
+  T: Drawable<Color = C> + Component + Clone,
+  U: Drawable<Color = C> + Component + Clone,
+{
+  type Color = C;
+  type Output = ();
+
+  fn draw<D>(&self, target: &mut D) -> Result<Self::Output, D::Error>
+  where
+    D: DrawTarget<Color = C>,
+  {
+    let left_width = (self.size.width as f32 * self.ratio) as u32;
+    let mut left = self.left.clone();
+    left.set_top_left(self.top_left);
+    left.set_size(Size::new(self.size.height, left_width));
+
+    let mut right = self.right.clone();
+    right.set_top_left(Point::new(left_width as i32, 0));
+    right.set_size(Size::new(self.size.height, self.size.width - left_width));
+
+    left.draw(target)?;
+    right.draw(target)?;
+
+    Ok(())
+  }
+}
+
+pub struct HSplit<T> {
+  pub top_left: Point,
+  pub size: Size,
+  pub top: T,
+  pub bottom: T,
+}

src/lib.rs

@@ -1,11 +1,13 @@
 mod bullet_counter;
 mod calendar;
+mod frame;
 mod gauge;
 mod list_item;
 mod style;
 
 pub use bullet_counter::BulletCounter;
 pub use calendar::{Calendar, ScrollingCalendar};
+pub use frame::{HSplit, VSplit};
 pub use gauge::Gauge;
 pub use list_item::{List, ListItem, ListItemData};
 pub use style::ComponentStyle;