started working on dialogs

src/user/lib/libgui/cg_utils.rs

@@ -0,0 +1,21 @@
+use crate::std::frame::{ColouredChar, Dimensions, Frame, Position};
+
+pub(crate) fn render_outline(frame: &mut Frame, dimensions: Dimensions) {
+    // draws the sides of the container
+    for i in 0..frame.dimensions.x {
+        frame.write(Position::new(i, 0), ColouredChar::new('─'));
+        frame.write(Position::new(i, frame.dimensions.y - 1), ColouredChar::new('─'));
+    }
+
+    // draws the top and bottom of the container
+    for i in 0..frame.dimensions.y {
+        frame.write(Position::new(0, i), ColouredChar::new('│'));
+        frame.write(Position::new(frame.dimensions.x - 1, i), ColouredChar::new('│'));
+    }
+
+    // draws the corners of the container
+    frame.write(Position::new(0, 0), ColouredChar::new('┌'));
+    frame.write(Position::new(dimensions.x - 1, 0), ColouredChar::new('┐'));
+    frame.write(Position::new(0, dimensions.y - 1), ColouredChar::new('└'));
+    frame.write(Position::new(dimensions.x - 1, dimensions.y - 1), ColouredChar::new('┘'));
+}