Pipeline and structure

pulse-ui/src/render.rs

@@ -0,0 +1,51 @@
+use std::fmt::Display;
+
+use crate::unit::{Point, Rect};
+
+pub enum Instr {
+    DrawText(Point, String),
+    DrawOutline(Rect),
+}
+
+pub struct RenderScope {
+    pub rect: Rect,
+    draw_instructions: Vec<Instr>,
+}
+
+impl RenderScope {
+    pub fn draw_text<P: Into<Point>, T: Display>(&mut self, at: P, text: T) {
+        self.draw_instructions
+            .push(Instr::DrawText(at.into(), text.to_string()));
+    }
+
+    pub fn draw_outline<P: Into<Point>>(&mut self, rect: Rect) {
+        self.draw_instructions.push(Instr::DrawOutline(rect));
+    }
+}
+
+impl RenderScope {
+    pub fn new(rect: Rect) -> Self {
+        Self {
+            rect,
+            draw_instructions: Vec::new(),
+        }
+    }
+}
+
+impl From<(u16, u16)> for Point {
+    fn from(value: (u16, u16)) -> Self {
+        Self {
+            x: value.0,
+            y: value.1,
+        }
+    }
+}
+
+impl From<Rect> for Point {
+    fn from(value: Rect) -> Self {
+        Self {
+            x: value.x,
+            y: value.y,
+        }
+    }
+}