From ebb4646358a291fdaa3a4aee8669910865f568c9 Mon Sep 17 00:00:00 2001
From: Dimitris Papaioannou <dimtpap@protonmail.com>
Date: Tue, 29 Oct 2024 11:50:06 +0200
Subject: [PATCH] Impl from Box<str> for WidgetText, RichText (#5309)

`Box<str>` is an immutable heap-allocated string slice.
This PR makes it more convenient to use them in labels for example.

Before this PR
```rust
let text: Box<str> = "Hello".into();
ui.label(text.into_string());

let text_ref: &Box<str> = &"Hello".into();
ui.label(text_ref.clone().into_string());
// or
ui.label(text_ref.as_ref());
// or
ui.label(&**text_ref);
```
After this PR
```rust
let text: Box<str> = "Hello".into();
ui.label(text);

let text_ref: &Box<str> = &"Hello".into();
ui.label(text_ref);
```

* [x] I have followed the instructions in the PR template
---
 crates/egui/src/widget_text.rs | 35 ++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/crates/egui/src/widget_text.rs b/crates/egui/src/widget_text.rs
index 03b8cbb9..80ee6f05 100644
--- a/crates/egui/src/widget_text.rs
+++ b/crates/egui/src/widget_text.rs
@@ -67,6 +67,27 @@ impl From<String> for RichText {
     }
 }
 
+impl From<&Box<str>> for RichText {
+    #[inline]
+    fn from(text: &Box<str>) -> Self {
+        Self::new(text.clone())
+    }
+}
+
+impl From<&mut Box<str>> for RichText {
+    #[inline]
+    fn from(text: &mut Box<str>) -> Self {
+        Self::new(text.clone())
+    }
+}
+
+impl From<Box<str>> for RichText {
+    #[inline]
+    fn from(text: Box<str>) -> Self {
+        Self::new(text)
+    }
+}
+
 impl From<Cow<'_, str>> for RichText {
     #[inline]
     fn from(text: Cow<'_, str>) -> Self {
@@ -701,6 +722,20 @@ impl From<String> for WidgetText {
     }
 }
 
+impl From<&Box<str>> for WidgetText {
+    #[inline]
+    fn from(text: &Box<str>) -> Self {
+        Self::RichText(RichText::new(text.clone()))
+    }
+}
+
+impl From<Box<str>> for WidgetText {
+    #[inline]
+    fn from(text: Box<str>) -> Self {
+        Self::RichText(RichText::new(text))
+    }
+}
+
 impl From<Cow<'_, str>> for WidgetText {
     #[inline]
     fn from(text: Cow<'_, str>) -> Self {