Introduce first-class svg module in iced_native

native/src/widget/svg.rs

@@ -1,11 +1,11 @@
 //! Display vector graphics in your application.
 use crate::layout;
 use crate::renderer;
+use crate::svg::{self, Handle};
 use crate::{Element, Hasher, Layout, Length, Point, Rectangle, Size, Widget};
 
-use std::hash::{Hash, Hasher as _};
+use std::hash::Hash;
 use std::path::PathBuf;
-use std::sync::Arc;
 
 /// A vector graphics image.
 ///
@@ -51,7 +51,7 @@ impl Svg {
 
 impl<Message, Renderer> Widget<Message, Renderer> for Svg
 where
-    Renderer: self::Renderer,
+    Renderer: svg::Renderer,
 {
     fn width(&self) -> Length {
         self.width
@@ -106,94 +106,9 @@ where
     }
 }
 
-/// An [`Svg`] handle.
-#[derive(Debug, Clone)]
-pub struct Handle {
-    id: u64,
-    data: Arc<Data>,
-}
-
-impl Handle {
-    /// Creates an SVG [`Handle`] pointing to the vector image of the given
-    /// path.
-    pub fn from_path(path: impl Into<PathBuf>) -> Handle {
-        Self::from_data(Data::Path(path.into()))
-    }
-
-    /// Creates an SVG [`Handle`] from raw bytes containing either an SVG string
-    /// or gzip compressed data.
-    ///
-    /// This is useful if you already have your SVG data in-memory, maybe
-    /// because you downloaded or generated it procedurally.
-    pub fn from_memory(bytes: impl Into<Vec<u8>>) -> Handle {
-        Self::from_data(Data::Bytes(bytes.into()))
-    }
-
-    fn from_data(data: Data) -> Handle {
-        let mut hasher = Hasher::default();
-        data.hash(&mut hasher);
-
-        Handle {
-            id: hasher.finish(),
-            data: Arc::new(data),
-        }
-    }
-
-    /// Returns the unique identifier of the [`Handle`].
-    pub fn id(&self) -> u64 {
-        self.id
-    }
-
-    /// Returns a reference to the SVG [`Data`].
-    pub fn data(&self) -> &Data {
-        &self.data
-    }
-}
-
-impl Hash for Handle {
-    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
-        self.id.hash(state);
-    }
-}
-
-/// The data of an [`Svg`].
-#[derive(Clone, Hash)]
-pub enum Data {
-    /// File data
-    Path(PathBuf),
-
-    /// In-memory data
-    ///
-    /// Can contain an SVG string or a gzip compressed data.
-    Bytes(Vec<u8>),
-}
-
-impl std::fmt::Debug for Data {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        match self {
-            Data::Path(path) => write!(f, "Path({:?})", path),
-            Data::Bytes(_) => write!(f, "Bytes(...)"),
-        }
-    }
-}
-
-/// The renderer of an [`Svg`].
-///
-/// Your [renderer] will need to implement this trait before being able to use
-/// an [`Svg`] in your user interface.
-///
-/// [renderer]: crate::renderer
-pub trait Renderer: crate::Renderer {
-    /// Returns the default dimensions of an [`Svg`] for the given [`Handle`].
-    fn dimensions(&self, handle: &Handle) -> (u32, u32);
-
-    // Draws an [`Svg`].
-    fn draw(&mut self, handle: Handle, bounds: Rectangle);
-}
-
 impl<'a, Message, Renderer> From<Svg> for Element<'a, Message, Renderer>
 where
-    Renderer: self::Renderer,
+    Renderer: svg::Renderer,
 {
     fn from(icon: Svg) -> Element<'a, Message, Renderer> {
         Element::new(icon)