diff options
Diffstat (limited to 'graphics/src/widget/canvas/path.rs')
-rw-r--r-- | graphics/src/widget/canvas/path.rs | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/graphics/src/widget/canvas/path.rs b/graphics/src/widget/canvas/path.rs new file mode 100644 index 00000000..c26bf187 --- /dev/null +++ b/graphics/src/widget/canvas/path.rs @@ -0,0 +1,79 @@ +//! Build different kinds of 2D shapes. +pub mod arc; + +mod builder; + +#[doc(no_inline)] +pub use arc::Arc; +pub use builder::Builder; + +use iced_native::{Point, Size}; + +/// An immutable set of points that may or may not be connected. +/// +/// A single [`Path`] can represent different kinds of 2D shapes! +/// +/// [`Path`]: struct.Path.html +#[derive(Debug, Clone)] +pub struct Path { + raw: lyon::path::Path, +} + +impl Path { + /// Creates a new [`Path`] with the provided closure. + /// + /// Use the [`Builder`] to configure your [`Path`]. + /// + /// [`Path`]: struct.Path.html + /// [`Builder`]: struct.Builder.html + pub fn new(f: impl FnOnce(&mut Builder)) -> Self { + let mut builder = Builder::new(); + + // TODO: Make it pure instead of side-effect-based (?) + f(&mut builder); + + builder.build() + } + + /// Creates a new [`Path`] representing a line segment given its starting + /// and end points. + /// + /// [`Path`]: struct.Path.html + pub fn line(from: Point, to: Point) -> Self { + Self::new(|p| { + p.move_to(from); + p.line_to(to); + }) + } + + /// Creates a new [`Path`] representing a rectangle given its top-left + /// corner coordinate and its `Size`. + /// + /// [`Path`]: struct.Path.html + pub fn rectangle(top_left: Point, size: Size) -> Self { + Self::new(|p| p.rectangle(top_left, size)) + } + + /// Creates a new [`Path`] representing a circle given its center + /// coordinate and its radius. + /// + /// [`Path`]: struct.Path.html + pub fn circle(center: Point, radius: f32) -> Self { + Self::new(|p| p.circle(center, radius)) + } + + #[inline] + pub(crate) fn raw(&self) -> &lyon::path::Path { + &self.raw + } + + #[inline] + pub(crate) fn transformed( + &self, + transform: &lyon::math::Transform, + ) -> Path { + Path { + raw: self.raw.transformed(transform), + } + } +} |