Support custom renderers in iced_test through renderer::Headless trait

core/src/settings.rs

@@ -0,0 +1,50 @@
+//! Configure your application.
+use crate::{Font, Pixels};
+
+use std::borrow::Cow;
+
+/// The settings of an iced program.
+#[derive(Debug, Clone)]
+pub struct Settings {
+    /// The identifier of the application.
+    ///
+    /// If provided, this identifier may be used to identify the application or
+    /// communicate with it through the windowing system.
+    pub id: Option<String>,
+
+    /// The fonts to load on boot.
+    pub fonts: Vec<Cow<'static, [u8]>>,
+
+    /// The default [`Font`] to be used.
+    ///
+    /// By default, it uses [`Family::SansSerif`](crate::font::Family::SansSerif).
+    pub default_font: Font,
+
+    /// The text size that will be used by default.
+    ///
+    /// The default value is `16.0`.
+    pub default_text_size: Pixels,
+
+    /// If set to true, the renderer will try to perform antialiasing for some
+    /// primitives.
+    ///
+    /// Enabling it can produce a smoother result in some widgets, like the
+    /// [`Canvas`], at a performance cost.
+    ///
+    /// By default, it is disabled.
+    ///
+    /// [`Canvas`]: crate::widget::Canvas
+    pub antialiasing: bool,
+}
+
+impl Default for Settings {
+    fn default() -> Self {
+        Self {
+            id: None,
+            fonts: Vec::new(),
+            default_font: Font::default(),
+            default_text_size: Pixels(16.0),
+            antialiasing: false,
+        }
+    }
+}