create lay/strain package

The lay/strain package uses the Cassowary algorithm to solve systems of
layout constraints.

1 files changed, 0 insertions, 34 deletions

diff --git a/constraint.go b/constraint.go
deleted file mode 100644
index c08e222..0000000
--- a/constraint.go
+++ /dev/null
@@ -1,34 +0,0 @@
-package gui
-
-// Constraint imposes a restriction on the size of a widget or layout.
-type Constraint struct {
-	// Dim is the dimension to constrain: width/height.
-	Dim
-
-	// Relation declares whether the constraint is an upper, lower, or exact bound.
-	Relation
-
-	// Length is the target or threshold value.
-	Length
-}
-
-// Dim is a dimension of a widget or layout that can be constrained.
-type Dim int
-
-const (
-	_ Dim = iota
-	Width
-	Height
-)
-
-// Relation is an (in)equality.
-type Relation int
-
-const (
-	_    Relation = iota
-	Eq            // ==
-	Gteq          // >=
-	Gt            // >
-	Lteq          // <=
-	Lt            // <
-)