From b9e0f7494881ad7cdfbcbc16878ecc6ef717753f Mon Sep 17 00:00:00 2001
From: Héctor Ramón Jiménez <hector0193@gmail.com>
Date: Fri, 20 Sep 2019 19:15:31 +0200
Subject: Create `iced_core` and `iced_native`
---
native/src/widget/checkbox.rs | 95 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 95 insertions(+)
create mode 100644 native/src/widget/checkbox.rs
(limited to 'native/src/widget/checkbox.rs')
diff --git a/native/src/widget/checkbox.rs b/native/src/widget/checkbox.rs
new file mode 100644
index 00000000..3e307f64
--- /dev/null
+++ b/native/src/widget/checkbox.rs
@@ -0,0 +1,95 @@
+//! Show toggle controls using checkboxes.
+use std::hash::Hash;
+
+use crate::input::{mouse, ButtonState};
+use crate::{Element, Event, Hasher, Layout, MouseCursor, Node, Point, Widget};
+
+pub use iced_core::Checkbox;
+
+impl<Message, Renderer> Widget<Message, Renderer> for Checkbox<Message>
+where
+ Renderer: self::Renderer,
+{
+ fn node(&self, renderer: &mut Renderer) -> Node {
+ renderer.node(&self)
+ }
+
+ fn on_event(
+ &mut self,
+ event: Event,
+ layout: Layout<'_>,
+ cursor_position: Point,
+ messages: &mut Vec<Message>,
+ ) {
+ match event {
+ Event::Mouse(mouse::Event::Input {
+ button: mouse::Button::Left,
+ state: ButtonState::Pressed,
+ }) => {
+ let mouse_over = layout
+ .children()
+ .any(|child| child.bounds().contains(cursor_position));
+
+ if mouse_over {
+ messages.push((self.on_toggle)(!self.is_checked));
+ }
+ }
+ _ => {}
+ }
+ }
+
+ fn draw(
+ &self,
+ renderer: &mut Renderer,
+ layout: Layout<'_>,
+ cursor_position: Point,
+ ) -> MouseCursor {
+ renderer.draw(&self, layout, cursor_position)
+ }
+
+ fn hash_layout(&self, state: &mut Hasher) {
+ self.label.hash(state);
+ }
+}
+
+/// The renderer of a [`Checkbox`].
+///
+/// Your [renderer] will need to implement this trait before being
+/// able to use a [`Checkbox`] in your user interface.
+///
+/// [`Checkbox`]: struct.Checkbox.html
+/// [renderer]: ../../renderer/index.html
+pub trait Renderer {
+ /// Creates a [`Node`] for the provided [`Checkbox`].
+ ///
+ /// [`Node`]: ../../struct.Node.html
+ /// [`Checkbox`]: struct.Checkbox.html
+ fn node<Message>(&mut self, checkbox: &Checkbox<Message>) -> Node;
+
+ /// Draws a [`Checkbox`].
+ ///
+ /// It receives:
+ /// * the current cursor position
+ /// * the bounds of the [`Checkbox`]
+ /// * the bounds of the label of the [`Checkbox`]
+ /// * whether the [`Checkbox`] is checked or not
+ ///
+ /// [`Checkbox`]: struct.Checkbox.html
+ fn draw<Message>(
+ &mut self,
+ checkbox: &Checkbox<Message>,
+ layout: Layout<'_>,
+ cursor_position: Point,
+ ) -> MouseCursor;
+}
+
+impl<'a, Message, Renderer> From<Checkbox<Message>>
+ for Element<'a, Message, Renderer>
+where
+ Renderer: self::Renderer,
+ Message: 'static,
+{
+ fn from(checkbox: Checkbox<Message>) -> Element<'a, Message, Renderer> {
+ Element::new(checkbox)
+ }
+}
--
cgit