Implement Toggler widget for iced_native

style/src/lib.rs

@@ -18,3 +18,4 @@ pub mod rule;
 pub mod scrollable;
 pub mod slider;
 pub mod text_input;
+pub mod toggler;

style/src/toggler.rs

@@ -0,0 +1,57 @@
+//! Show toggle controls using togglers.
+use iced_core::Color;
+
+/// The appearance of a toggler.
+#[derive(Debug)]
+pub struct Style {
+    pub background: Color,
+    pub background_border: Option<Color>,
+    pub foreground: Color,
+    pub foreground_border: Option<Color>,
+}
+
+/// A set of rules that dictate the style of a toggler.
+pub trait StyleSheet {
+    fn active(&self, is_active: bool) -> Style;
+
+    fn hovered(&self, is_active: bool) -> Style;
+}
+
+struct Default;
+
+impl StyleSheet for Default {
+    fn active(&self, is_active: bool) -> Style {
+        Style {
+            background: if is_active {
+                Color::from_rgb(0.0, 1.0, 0.0)
+            } else {
+                Color::from_rgb(0.7, 0.7, 0.7)
+            },
+            background_border: None,
+            foreground: Color::WHITE,
+            foreground_border: None,
+        }
+    }
+
+    fn hovered(&self, is_active: bool) -> Style {
+        Style {
+            foreground: Color::from_rgb(0.95, 0.95, 0.95),
+            ..self.active(is_active)
+        }
+    }
+}
+
+impl std::default::Default for Box<dyn StyleSheet> {
+    fn default() -> Self {
+        Box::new(Default)
+    }
+}
+
+impl<T> From<T> for Box<dyn StyleSheet>
+where
+    T: 'static + StyleSheet,
+{
+    fn from(style: T) -> Self {
+        Box::new(style)
+    }
+}