Create iced_core and iced_native

core/src/widget/checkbox.rs

@@ -0,0 +1,78 @@
+//! Show toggle controls using checkboxes.
+use crate::Color;
+
+/// A box that can be checked.
+///
+/// # Example
+///
+/// ```
+/// use iced_core::Checkbox;
+///
+/// pub enum Message {
+///     CheckboxToggled(bool),
+/// }
+///
+/// let is_checked = true;
+///
+/// Checkbox::new(is_checked, "Toggle me!", Message::CheckboxToggled);
+/// ```
+///
+/// ![Checkbox drawn by Coffee's renderer](https://github.com/hecrj/coffee/blob/bda9818f823dfcb8a7ad0ff4940b4d4b387b5208/images/ui/checkbox.png?raw=true)
+pub struct Checkbox<Message> {
+    /// Whether the checkbox is checked or not
+    pub is_checked: bool,
+
+    /// Function to call when checkbox is toggled to produce a __message__.
+    ///
+    /// The function should be provided `true` when the checkbox is checked
+    /// and `false` otherwise.
+    pub on_toggle: Box<dyn Fn(bool) -> Message>,
+
+    /// The label of the checkbox
+    pub label: String,
+
+    /// The color of the label
+    pub label_color: Option<Color>,
+}
+
+impl<Message> std::fmt::Debug for Checkbox<Message> {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.debug_struct("Checkbox")
+            .field("is_checked", &self.is_checked)
+            .field("label", &self.label)
+            .field("label_color", &self.label_color)
+            .finish()
+    }
+}
+
+impl<Message> Checkbox<Message> {
+    /// Creates a new [`Checkbox`].
+    ///
+    /// It expects:
+    ///   * a boolean describing whether the [`Checkbox`] is checked or not
+    ///   * the label of the [`Checkbox`]
+    ///   * a function that will be called when the [`Checkbox`] is toggled.
+    ///     It will receive the new state of the [`Checkbox`] and must produce
+    ///     a `Message`.
+    ///
+    /// [`Checkbox`]: struct.Checkbox.html
+    pub fn new<F>(is_checked: bool, label: &str, f: F) -> Self
+    where
+        F: 'static + Fn(bool) -> Message,
+    {
+        Checkbox {
+            is_checked,
+            on_toggle: Box::new(f),
+            label: String::from(label),
+            label_color: None,
+        }
+    }
+
+    /// Sets the color of the label of the [`Checkbox`].
+    ///
+    /// [`Checkbox`]: struct.Checkbox.html
+    pub fn label_color<C: Into<Color>>(mut self, color: C) -> Self {
+        self.label_color = Some(color.into());
+        self
+    }
+}