fret_core/
svg.rs

1use crate::ids::SvgId;
2
3#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Default)]
4pub enum SvgFit {
5    /// Uniformly scale to fully fit inside the target rect (no cropping).
6    #[default]
7    Contain,
8    /// Uniformly scale based on target width (height may overflow and should be clipped).
9    Width,
10    /// Non-uniformly scale to match the target rect (may distort).
11    Stretch,
12}
13
14/// SVG asset registration service.
15///
16/// This keeps `SceneOp` cheap (it stores `SvgId`, not raw bytes) while allowing renderers to
17/// rasterize/cache SVGs at paint time using their GPU context.
18pub trait SvgService {
19    /// Register SVG bytes and return a stable `SvgId`.
20    ///
21    /// Implementations may deduplicate repeated registrations.
22    fn register_svg(&mut self, bytes: &[u8]) -> SvgId;
23
24    /// Release a previously registered SVG.
25    ///
26    /// This is a ref-counted release: each successful `register_svg` increments a reference count
27    /// (including deduplicated registrations that return an existing `SvgId`), and
28    /// `unregister_svg` decrements it. Implementations should only drop the underlying bytes and
29    /// any cached rasterizations when the count reaches zero.
30    fn unregister_svg(&mut self, svg: SvgId) -> bool;
31}
fret_core/svg.rs

fret_core/
svg.rs
