Created new patterns

theme/inset.go

@@ -1,42 +0,0 @@
-package theme
-
-import "image"
-
-// Inset represents an inset amount for all four sides of a rectangle. The top
-// side is at index zero, the right at index one, the bottom at index two, and
-// the left at index three. These values may be negative.
-type Inset [4]int
-
-// Apply returns the given rectangle, shrunk on all four sides by the given
-// inset. If a measurment of the inset is negative, that side will instead be
-// expanded outward. If the rectangle's dimensions cannot be reduced any
-// further, an empty rectangle near its center will be returned.
-func (inset Inset) Apply (bigger image.Rectangle) (smaller image.Rectangle) {
-	smaller = bigger
-	if smaller.Dx() < inset[3] + inset[1] {
-		smaller.Min.X = (smaller.Min.X + smaller.Max.X) / 2
-		smaller.Max.X = smaller.Min.X
-	} else {
-		smaller.Min.X += inset[3]
-		smaller.Max.X -= inset[1]
-	}
-
-	if smaller.Dy() < inset[0] + inset[2] {
-		smaller.Min.Y = (smaller.Min.Y + smaller.Max.Y) / 2
-		smaller.Max.Y = smaller.Min.Y
-	} else {
-		smaller.Min.Y += inset[0]
-		smaller.Max.Y -= inset[2]
-	}
-	return
-}
-
-// Inverse returns a negated version of the inset.
-func (inset Inset) Inverse () (prime Inset) {
-	return Inset {
-		inset[0] * -1,
-		inset[1] * -1,
-		inset[2] * -1,
-		inset[3] * -1,
-	}
-}