From 423af5c07b8de78eee24e08541569f852e261b33 Mon Sep 17 00:00:00 2001
From: Varphone Wong <varphone@qq.com>
Date: Wed, 17 Jul 2024 16:43:24 +0800
Subject: [PATCH] `egui`: Enhance `Painter` with `arc` and `pie` Methods

Introduces convenient methods for drawing arcs and pies directly within the UI.
---
 crates/egui/src/painter.rs | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/crates/egui/src/painter.rs b/crates/egui/src/painter.rs
index 22a0a0a9d..fc9cf8d49 100644
--- a/crates/egui/src/painter.rs
+++ b/crates/egui/src/painter.rs
@@ -370,6 +370,38 @@ impl Painter {
         self.add(Shape::vline(x, y, stroke))
     }
 
+    /// Paints an arc line.
+    pub fn arc(
+        &self,
+        center: Pos2,
+        radius: f32,
+        start_angle: f32,
+        end_angle: f32,
+        stroke: impl Into<PathStroke>,
+    ) -> ShapeIdx {
+        self.add(Shape::arc(center, radius, start_angle, end_angle, stroke))
+    }
+
+    /// Paints a pie slice.
+    pub fn pie(
+        &self,
+        center: Pos2,
+        radius: f32,
+        start_angle: f32,
+        end_angle: f32,
+        fill: impl Into<Color32>,
+        stroke: impl Into<PathStroke>,
+    ) -> ShapeIdx {
+        self.add(Shape::pie(
+            center,
+            radius,
+            start_angle,
+            end_angle,
+            fill,
+            stroke,
+        ))
+    }
+
     pub fn circle(
         &self,
         center: Pos2,