Merge pull request #17 from hecrj/web

Basic web support (core, native, and web crates)

1 files changed, 79 insertions, 0 deletions

diff --git a/native/src/widget/text.rs b/native/src/widget/text.rs
new file mode 100644
index 00000000..5ca6ebf3
--- /dev/null
+++ b/native/src/widget/text.rs
@@ -0,0 +1,79 @@
+//! Write some text for your users to read.
+use crate::{Element, Hasher, Layout, MouseCursor, Node, Point, Widget};
+
+use std::hash::Hash;
+
+pub use iced_core::text::*;
+
+impl<Message, Renderer> Widget<Message, Renderer> for Text
+where
+    Renderer: self::Renderer,
+{
+    fn node(&self, renderer: &mut Renderer) -> Node {
+        renderer.node(&self)
+    }
+
+    fn draw(
+        &self,
+        renderer: &mut Renderer,
+        layout: Layout<'_>,
+        _cursor_position: Point,
+    ) -> MouseCursor {
+        renderer.draw(&self, layout);
+
+        MouseCursor::OutOfBounds
+    }
+
+    fn hash_layout(&self, state: &mut Hasher) {
+        self.content.hash(state);
+        self.size.hash(state);
+        self.width.hash(state);
+        self.height.hash(state);
+    }
+}
+
+/// The renderer of a [`Text`] fragment.
+///
+/// Your [renderer] will need to implement this trait before being
+/// able to use [`Text`] in your [`UserInterface`].
+///
+/// [`Text`]: struct.Text.html
+/// [renderer]: ../../renderer/index.html
+/// [`UserInterface`]: ../../struct.UserInterface.html
+pub trait Renderer {
+    /// Creates a [`Node`] with the given [`Style`] for the provided [`Text`]
+    /// contents and size.
+    ///
+    /// You should probably use [`Node::with_measure`] to allow [`Text`] to
+    /// adapt to the dimensions of its container.
+    ///
+    /// [`Node`]: ../../struct.Node.html
+    /// [`Style`]: ../../struct.Style.html
+    /// [`Text`]: struct.Text.html
+    /// [`Node::with_measure`]: ../../struct.Node.html#method.with_measure
+    fn node(&self, text: &Text) -> Node;
+
+    /// Draws a [`Text`] fragment.
+    ///
+    /// It receives:
+    ///   * the bounds of the [`Text`]
+    ///   * the contents of the [`Text`]
+    ///   * the size of the [`Text`]
+    ///   * the color of the [`Text`]
+    ///   * the [`HorizontalAlignment`] of the [`Text`]
+    ///   * the [`VerticalAlignment`] of the [`Text`]
+    ///
+    /// [`Text`]: struct.Text.html
+    /// [`HorizontalAlignment`]: enum.HorizontalAlignment.html
+    /// [`VerticalAlignment`]: enum.VerticalAlignment.html
+    fn draw(&mut self, text: &Text, layout: Layout<'_>);
+}
+
+impl<'a, Message, Renderer> From<Text> for Element<'a, Message, Renderer>
+where
+    Renderer: self::Renderer,
+{
+    fn from(text: Text) -> Element<'a, Message, Renderer> {
+        Element::new(text)
+    }
+}