ui,internal/ops,internal/opconst: move OpsReader to internal ops package

To avoid import cycles, move the op constants to its own package,
internal/opconst.

Signed-off-by: Elias Naur <mail@eliasnaur.com>

ui/internal/ops/ops.go

@@ -1,80 +0,0 @@
-package ops
-
-type OpType byte
-
-// Start at a high number for easier debugging.
-const firstOpIndex = 200
-
-const (
-	TypeMacroDef OpType = iota + firstOpIndex
-	TypeMacro
-	TypeTransform
-	TypeLayer
-	TypeInvalidate
-	TypeImage
-	TypeDraw
-	TypeColor
-	TypeArea
-	TypePointerHandler
-	TypePass
-	TypeKeyHandler
-	TypeHideInput
-	TypePush
-	TypePop
-	TypeAux
-	TypeClip
-	TypeProfile
-)
-
-const (
-	TypeMacroDefLen       = 1 + 4 + 4
-	TypeMacroLen          = 1 + 4 + 4 + 4
-	TypeTransformLen      = 1 + 4*2
-	TypeLayerLen          = 1
-	TypeRedrawLen         = 1 + 8
-	TypeImageLen          = 1 + 4*4
-	TypeDrawLen           = 1 + 4*4
-	TypeColorLen          = 1 + 4
-	TypeAreaLen           = 1 + 1 + 4*4
-	TypePointerHandlerLen = 1 + 1
-	TypePassLen           = 1 + 1
-	TypeKeyHandlerLen     = 1 + 1
-	TypeHideInputLen      = 1
-	TypePushLen           = 1
-	TypePopLen            = 1
-	TypeAuxLen            = 1 + 4
-	TypeClipLen           = 1 + 4*4
-	TypeProfileLen        = 1
-)
-
-func (t OpType) Size() int {
-	return [...]int{
-		TypeMacroDefLen,
-		TypeMacroLen,
-		TypeTransformLen,
-		TypeLayerLen,
-		TypeRedrawLen,
-		TypeImageLen,
-		TypeDrawLen,
-		TypeColorLen,
-		TypeAreaLen,
-		TypePointerHandlerLen,
-		TypePassLen,
-		TypeKeyHandlerLen,
-		TypeHideInputLen,
-		TypePushLen,
-		TypePopLen,
-		TypeAuxLen,
-		TypeClipLen,
-		TypeProfileLen,
-	}[t-firstOpIndex]
-}
-
-func (t OpType) NumRefs() int {
-	switch t {
-	case TypeMacro, TypeImage, TypeKeyHandler, TypePointerHandler, TypeProfile:
-		return 1
-	default:
-		return 0
-	}
-}