Remove system_fonts references and code that was left over from before be71200

Author: TotalKrill

Cargo.toml

@@ -2174,16 +2174,6 @@ description = "Demonstrates how the to use the size constraints to control the s
 category = "UI (User Interface)"
 wasm = true
 
-[[example]]
-name = "system_fonts"
-path = "examples/ui/system_fonts.rs"
-
-[package.metadata.example.system_fonts]
-name = "System Fonts"
-description = "Demonstrates using system fonts."
-category = "UI (User Interface)"
-wasm = false
-
 [[example]]
 name = "text"
 path = "examples/ui/text.rs"

crates/bevy_text/src/lib.rs

@@ -9,7 +9,6 @@
 //! and is distinguished by its style (e.g. italic), its weight (e.g. bold) and its stretch (e.g. condensed).
 //!
 //! In Bevy, [`Font`]s are loaded by the [`FontLoader`](FontLoader) as assets,
-//! or they can be loaded as system fonts through [`TextPipeline::load_system_fonts`].
 //!
 //! # `TextPipeline`
 //!

crates/bevy_text/src/pipeline.rs

@@ -6,10 +6,7 @@ use bevy_math::Vec2;
 use bevy_reflect::{std_traits::ReflectDefault, Reflect};
 use bevy_render::texture::Image;
 use bevy_sprite::TextureAtlas;
-use bevy_utils::{
-    tracing::{error, info, warn},
-    HashMap,
-};
+use bevy_utils::{tracing::warn, HashMap};
 
 use cosmic_text::{Attrs, Buffer, Metrics, Shaping, Wrap};
 
@@ -42,19 +39,6 @@ impl Default for FontSystem {
     }
 }
 
-impl FontSystem {
-    fn load_system_fonts(&mut self) {
-        match self.0.try_lock() {
-            Ok(mut font_system) => {
-                font_system.db_mut().load_system_fonts();
-            }
-            Err(err) => {
-                error!("Failed to acquire mutex: {:?}", err);
-            }
-        };
-    }
-}
-
 /// A wrapper around a [`cosmic_text::SwashCache`]
 pub struct SwashCache(cosmic_text::SwashCache);
 
@@ -301,33 +285,6 @@ impl TextPipeline {
             buffer: Mutex::new(buffer),
         })
     }
-
-    /// Attempts to load system fonts.
-    ///
-    /// Supports Windows, Linux and macOS.
-    ///
-    /// System fonts loading is a surprisingly complicated task,
-    /// mostly unsolvable without interacting with system libraries.
-    /// And since [`fontdb`](cosmic_text::fontdb) tries to be small and portable, this method
-    /// will simply scan some predefined directories.
-    /// Which means that fonts that are not in those directories must
-    /// be added manually.
-    ///
-    /// This allows access to any installed system fonts
-    ///
-    /// # Timing
-    ///
-    /// This function takes some time to run. On the release build, it can take up to a second,
-    /// while debug builds can take up to ten times longer. For this reason, it should only be
-    /// called once, and the resulting [`FontSystem`] should be shared.
-    ///
-    /// This should ideally run in a background thread.
-    // TODO: This should run in a background thread.
-    pub fn load_system_fonts(&mut self) {
-        info!("Loading system fonts");
-        self.font_system.load_system_fonts();
-        info!("Loaded system fonts");
-    }
 }
 
 /// Render information for a corresponding [`Text`](crate::Text) component.

examples/README.md

@@ -364,7 +364,6 @@ Example | Description
 [Overflow and Clipping Debug](../examples/ui/overflow_debug.rs) | An example to debug overflow and clipping behavior
 [Relative Cursor Position](../examples/ui/relative_cursor_position.rs) | Showcases the RelativeCursorPosition component
 [Size Constraints](../examples/ui/size_constraints.rs) | Demonstrates how the to use the size constraints to control the size of a UI node.
-[System Fonts](../examples/ui/system_fonts.rs) | Demonstrates using system fonts.
 [Text](../examples/ui/text.rs) | Illustrates creating and updating text
 [Text Debug](../examples/ui/text_debug.rs) | An example for debugging text layout
 [Text Wrap Debug](../examples/ui/text_wrap_debug.rs) | Demonstrates text wrapping