Remove layout cache

1 files changed, 0 insertions, 88 deletions

diff --git a/src/layout/constraints.rs b/src/layout/constraints.rs
deleted file mode 100644
index 3bdbc4bc..00000000
--- a/src/layout/constraints.rs
+++ /dev/null
@@ -1,88 +0,0 @@
-use std::sync::Arc;
-
-use super::Regions;
-use crate::frame::Frame;
-use crate::geom::{Length, Size, Spec};
-
-/// Constrain a frame with constraints.
-pub trait Constrain {
-    /// Reference-count the frame and wrap it with constraints.
-    fn constrain(self, cts: Constraints) -> Constrained<Arc<Frame>>;
-}
-
-impl Constrain for Frame {
-    fn constrain(self, cts: Constraints) -> Constrained<Arc<Frame>> {
-        Constrained::new(Arc::new(self), cts)
-    }
-}
-
-/// Carries an item that is only valid in certain regions and the constraints
-/// that describe these regions.
-#[derive(Debug, Copy, Clone, Eq, PartialEq)]
-pub struct Constrained<T> {
-    /// The item that is only valid if the constraints are fullfilled.
-    pub item: T,
-    /// Constraints on regions in which the item is valid.
-    pub cts: Constraints,
-}
-
-impl<T> Constrained<T> {
-    /// Constrain an item with constraints.
-    pub fn new(item: T, cts: Constraints) -> Self {
-        Self { item, cts }
-    }
-}
-
-/// Describe regions that match them.
-#[derive(Debug, Copy, Clone, Eq, PartialEq)]
-pub struct Constraints {
-    /// The minimum available length in the region.
-    pub min: Spec<Option<Length>>,
-    /// The maximum available length in the region.
-    pub max: Spec<Option<Length>>,
-    /// The available length in the region.
-    pub exact: Spec<Option<Length>>,
-    /// The base length of the region used for relative length resolution.
-    pub base: Spec<Option<Length>>,
-    /// The expand settings of the region.
-    pub expand: Spec<bool>,
-}
-
-impl Constraints {
-    /// Create a new region constraint.
-    pub fn new(expand: Spec<bool>) -> Self {
-        Self {
-            min: Spec::default(),
-            max: Spec::default(),
-            exact: Spec::default(),
-            base: Spec::default(),
-            expand,
-        }
-    }
-
-    /// Create tight constraints for a region.
-    pub fn tight(regions: &Regions) -> Self {
-        Self {
-            min: Spec::default(),
-            max: Spec::default(),
-            exact: regions.current.map(Some),
-            base: regions.base.map(Some),
-            expand: regions.expand,
-        }
-    }
-
-    /// Check whether the constraints are fullfilled in a region with the given
-    /// properties.
-    pub fn check(&self, current: Size, base: Size, expand: Spec<bool>) -> bool {
-        self.expand == expand
-            && verify(self.min, current, |m, c| c.fits(m))
-            && verify(self.max, current, |m, c| m.fits(c))
-            && verify(self.exact, current, Length::approx_eq)
-            && verify(self.base, base, Length::approx_eq)
-    }
-}
-
-/// Verify a single constraint.
-fn verify(spec: Spec<Option<Length>>, size: Size, f: fn(Length, Length) -> bool) -> bool {
-    spec.zip(size).all(|&(opt, s)| opt.map_or(true, |m| f(m, s)))
-}