Vendor ratatui temporarily (#835)

* Vendor ratatui temporarily

Once https://github.com/tui-rs-revival/ratatui/pull/114 has been merged,
we can undo this! But otherwise we can't publish to crates.io with a git
dependency.

* make tests pass

* Shush.

* these literally just fail in nix, nowhere else

idk how to work with nix properly, and they're also not our tests

1 files changed, 52 insertions, 0 deletions

diff --git a/src/ratatui/widgets/canvas/rectangle.rs b/src/ratatui/widgets/canvas/rectangle.rs
new file mode 100644
index 00000000..07ac9137
--- /dev/null
+++ b/src/ratatui/widgets/canvas/rectangle.rs
@@ -0,0 +1,52 @@
+use crate::ratatui::{
+    style::Color,
+    widgets::canvas::{Line, Painter, Shape},
+};
+
+/// Shape to draw a rectangle from a `Rect` with the given color
+#[derive(Debug, Clone)]
+pub struct Rectangle {
+    pub x: f64,
+    pub y: f64,
+    pub width: f64,
+    pub height: f64,
+    pub color: Color,
+}
+
+impl Shape for Rectangle {
+    fn draw(&self, painter: &mut Painter) {
+        let lines: [Line; 4] = [
+            Line {
+                x1: self.x,
+                y1: self.y,
+                x2: self.x,
+                y2: self.y + self.height,
+                color: self.color,
+            },
+            Line {
+                x1: self.x,
+                y1: self.y + self.height,
+                x2: self.x + self.width,
+                y2: self.y + self.height,
+                color: self.color,
+            },
+            Line {
+                x1: self.x + self.width,
+                y1: self.y,
+                x2: self.x + self.width,
+                y2: self.y + self.height,
+                color: self.color,
+            },
+            Line {
+                x1: self.x,
+                y1: self.y,
+                x2: self.x + self.width,
+                y2: self.y,
+                color: self.color,
+            },
+        ];
+        for line in &lines {
+            line.draw(painter);
+        }
+    }
+}