Overhaul Font type to allow font family selection

wgpu/src/backend.rs

@@ -27,6 +27,7 @@ pub struct Backend {
     #[cfg(any(feature = "image", feature = "svg"))]
     image_pipeline: image::Pipeline,
 
+    default_font: Font,
     default_text_size: f32,
 }
 
@@ -38,14 +39,7 @@ impl Backend {
         settings: Settings,
         format: wgpu::TextureFormat,
     ) -> Self {
-        let text_pipeline = text::Pipeline::new(
-            device,
-            queue,
-            format,
-            settings.default_font,
-            settings.text_multithreading,
-        );
-
+        let text_pipeline = text::Pipeline::new(device, queue, format);
         let quad_pipeline = quad::Pipeline::new(device, format);
         let triangle_pipeline =
             triangle::Pipeline::new(device, format, settings.antialiasing);
@@ -61,6 +55,7 @@ impl Backend {
             #[cfg(any(feature = "image", feature = "svg"))]
             image_pipeline,
 
+            default_font: settings.default_font,
             default_text_size: settings.default_text_size,
         }
     }
@@ -199,9 +194,13 @@ impl iced_graphics::Backend for Backend {
 }
 
 impl backend::Text for Backend {
-    const ICON_FONT: Font = Font::Default; // TODO
-    const CHECKMARK_ICON: char = '✓';
-    const ARROW_DOWN_ICON: char = '▼';
+    const ICON_FONT: Font = Font::Name("Iced-Icons");
+    const CHECKMARK_ICON: char = '\u{e800}';
+    const ARROW_DOWN_ICON: char = '\u{f00c}';
+
+    fn default_font(&self) -> Font {
+        self.default_font
+    }
 
     fn default_size(&self) -> f32 {
         self.default_text_size

wgpu/src/lib.rs

@@ -47,7 +47,9 @@ mod quad;
 mod text;
 mod triangle;
 
-pub use iced_graphics::{Antialiasing, Color, Error, Primitive, Viewport};
+pub use iced_graphics::{
+    Antialiasing, Color, Error, Font, Primitive, Viewport,
+};
 pub use iced_native::Theme;
 pub use wgpu;
 

wgpu/src/settings.rs

@@ -1,12 +1,12 @@
 //! Configure a renderer.
-use std::fmt;
-
 pub use crate::Antialiasing;
 
+use crate::Font;
+
 /// The settings of a [`Backend`].
 ///
 /// [`Backend`]: crate::Backend
-#[derive(Clone, Copy, PartialEq)]
+#[derive(Debug, Clone, Copy, PartialEq)]
 pub struct Settings {
     /// The present mode of the [`Backend`].
     ///
@@ -16,42 +16,20 @@ pub struct Settings {
     /// The internal graphics backend to use.
     pub internal_backend: wgpu::Backends,
 
-    /// The bytes of the font that will be used by default.
-    ///
-    /// If `None` is provided, a default system font will be chosen.
-    pub default_font: Option<&'static [u8]>,
+    /// The default [`Font`] to use.
+    pub default_font: Font,
 
     /// The default size of text.
     ///
     /// By default, it will be set to `16.0`.
     pub default_text_size: f32,
 
-    /// If enabled, spread text workload in multiple threads when multiple cores
-    /// are available.
-    ///
-    /// By default, it is disabled.
-    pub text_multithreading: bool,
-
     /// The antialiasing strategy that will be used for triangle primitives.
     ///
     /// By default, it is `None`.
     pub antialiasing: Option<Antialiasing>,
 }
 
-impl fmt::Debug for Settings {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.debug_struct("Settings")
-            .field("present_mode", &self.present_mode)
-            .field("internal_backend", &self.internal_backend)
-            // Instead of printing the font bytes, we simply show a `bool` indicating if using a default font or not.
-            .field("default_font", &self.default_font.is_some())
-            .field("default_text_size", &self.default_text_size)
-            .field("text_multithreading", &self.text_multithreading)
-            .field("antialiasing", &self.antialiasing)
-            .finish()
-    }
-}
-
 impl Settings {
     /// Creates new [`Settings`] using environment configuration.
     ///
@@ -81,9 +59,8 @@ impl Default for Settings {
         Settings {
             present_mode: wgpu::PresentMode::AutoVsync,
             internal_backend: wgpu::Backends::all(),
-            default_font: None,
-            default_text_size: 20.0,
-            text_multithreading: false,
+            default_font: Font::SansSerif,
+            default_text_size: 16.0,
             antialiasing: None,
         }
     }

wgpu/src/text.rs

@@ -112,8 +112,6 @@ impl Pipeline {
         device: &wgpu::Device,
         queue: &wgpu::Queue,
         format: wgpu::TextureFormat,
-        _default_font: Option<&[u8]>,
-        _multithreading: bool,
     ) -> Self {
         Pipeline {
             renderers: Vec::new(),
@@ -316,7 +314,11 @@ impl Pipeline {
 
 fn to_family(font: Font) -> glyphon::Family<'static> {
     match font {
-        Font::Default => glyphon::Family::SansSerif,
-        Font::External { name, .. } => glyphon::Family::Name(name),
+        Font::Name(name) => glyphon::Family::Name(name),
+        Font::SansSerif => glyphon::Family::SansSerif,
+        Font::Serif => glyphon::Family::Serif,
+        Font::Cursive => glyphon::Family::Cursive,
+        Font::Fantasy => glyphon::Family::Fantasy,
+        Font::Monospace => glyphon::Family::Monospace,
     }
 }