1 files changed, 2 insertions, 32 deletions
diff --git a/volume/volume.go b/volume/volume.go
index 48330df..e634b5d 100644
--- a/volume/volume.go
+++ b/volume/volume.go
@@ -1,10 +1,5 @@
 package volume
 
-import (
-	"errors"
-	"fmt"
-)
-
 type Volume float32
 
 const (
@@ -14,31 +9,6 @@ const (
 	CubicInch       Volume = 16.38706
 )
 
-// UnitStrings returns a slice of strings, each representing a
-// unit.
-// This is necessary because giu.Combo only works with strings.
-func UnitStrings() []string {
-	return []string{"cc", "L", "m³", "in³"}
-}
-
-const (
-	DefaultUnit Volume = CubicCentimetre
-	// DefaulUnitIndex is used to index UnitStrings().
-	DefaultUnitIndex int32 = 0 // cc
-)
-
-func UnitFromString(s string) (Volume, error) {
-	// Each case corresponds to a value in UnitStrings().
-	switch s {
-	case "cc":
-		return CubicCentimetre, nil
-	case "L":
-		return Litre, nil
-	case "m³":
-		return CubicMetre, nil
-	case "in³":
-		return CubicInch, nil
-	default:
-		return *new(Volume), errors.New(fmt.Sprintf("invalid volume unit: '%s'", s))
-	}
+func (v Volume) As(unit Volume) float32 {
+	return float32(v / unit)
 }