Split crates

1 files changed, 0 insertions, 83 deletions

diff --git a/src/library/layout/pad.rs b/src/library/layout/pad.rs
deleted file mode 100644
index 920660d6..00000000
--- a/src/library/layout/pad.rs
+++ /dev/null
@@ -1,83 +0,0 @@
-use crate::library::prelude::*;
-
-/// Pad content at the sides.
-#[derive(Debug, Hash)]
-pub struct PadNode {
-    /// The amount of padding.
-    pub padding: Sides<Rel<Length>>,
-    /// The content whose sides to pad.
-    pub child: Content,
-}
-
-#[node(LayoutBlock)]
-impl PadNode {
-    fn construct(_: &mut Vm, args: &mut Args) -> SourceResult<Content> {
-        let all = args.named("rest")?.or(args.find()?);
-        let x = args.named("x")?;
-        let y = args.named("y")?;
-        let left = args.named("left")?.or(x).or(all).unwrap_or_default();
-        let top = args.named("top")?.or(y).or(all).unwrap_or_default();
-        let right = args.named("right")?.or(x).or(all).unwrap_or_default();
-        let bottom = args.named("bottom")?.or(y).or(all).unwrap_or_default();
-        let body = args.expect::<Content>("body")?;
-        let padding = Sides::new(left, top, right, bottom);
-        Ok(body.padded(padding))
-    }
-}
-
-impl LayoutBlock for PadNode {
-    fn layout_block(
-        &self,
-        world: Tracked<dyn World>,
-        regions: &Regions,
-        styles: StyleChain,
-    ) -> SourceResult<Vec<Frame>> {
-        // Layout child into padded regions.
-        let padding = self.padding.resolve(styles);
-        let pod = regions.map(|size| shrink(size, padding));
-        let mut frames = self.child.layout_block(world, &pod, styles)?;
-
-        for frame in &mut frames {
-            // Apply the padding inversely such that the grown size padded
-            // yields the frame's size.
-            let padded = grow(frame.size(), padding);
-            let padding = padding.relative_to(padded);
-            let offset = Point::new(padding.left, padding.top);
-
-            // Grow the frame and translate everything in the frame inwards.
-            frame.set_size(padded);
-            frame.translate(offset);
-        }
-
-        Ok(frames)
-    }
-}
-
-/// Shrink a size by padding relative to the size itself.
-fn shrink(size: Size, padding: Sides<Rel<Abs>>) -> Size {
-    size - padding.relative_to(size).sum_by_axis()
-}
-
-/// Grow a size by padding relative to the grown size.
-/// This is the inverse operation to `shrink()`.
-///
-/// For the horizontal axis the derivation looks as follows.
-/// (Vertical axis is analogous.)
-///
-/// Let w be the grown target width,
-///     s be the given width,
-///     l be the left padding,
-///     r be the right padding,
-///     p = l + r.
-///
-/// We want that: w - l.resolve(w) - r.resolve(w) = s
-///
-/// Thus: w - l.resolve(w) - r.resolve(w) = s
-///   <=> w - p.resolve(w) = s
-///   <=> w - p.rel * w - p.abs = s
-///   <=> (1 - p.rel) * w = s + p.abs
-///   <=> w = (s + p.abs) / (1 - p.rel)
-fn grow(size: Size, padding: Sides<Rel<Abs>>) -> Size {
-    size.zip(padding.sum_by_axis())
-        .map(|(s, p)| (s + p.abs).safe_div(1.0 - p.rel.get()))
-}