text,widget: remove dead code and fields

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

text/lru.go

@@ -163,10 +163,6 @@ type layoutKey struct {
 	lineHeightScale    float32
 }
 
-type pathKey struct {
-	gidHash uint64
-}
-
 const maxSize = 1000
 
 func gidsEqual(a []glyphInfo, glyphs []Glyph) bool {

widget/buffer.go

@@ -11,9 +11,6 @@ import (
 
 // editBuffer implements a gap buffer for text editing.
 type editBuffer struct {
-	// pos is the byte position for Read and ReadRune.
-	pos int
-
 	// The gap start and end in bytes.
 	gapstart, gapend int
 	text             []byte

widget/decorations.go

@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"math/bits"
 
-	"gioui.org/gesture"
 	"gioui.org/io/system"
 	"gioui.org/layout"
 	"gioui.org/op/clip"
@@ -13,10 +12,6 @@ import (
 // Decorations handles the states of window decorations.
 type Decorations struct {
 	clicks    map[int]*Clickable
-	resize [8]struct {
-		gesture.Hover
-		gesture.Drag
-	}
 	maximized bool
 }
 

widget/index.go

@@ -347,10 +347,6 @@ type Region struct {
 	Baseline int
 }
 
-// region is identical to Region except that its coordinates are in document
-// space instead of a widget coordinate space.
-type region = Region
-
 // locate returns highlight regions covering the glyphs that represent the runes in
 // [startRune,endRune). If the rects parameter is non-nil, locate will use it to
 // return results instead of allocating, provided that there is enough capacity.

widget/label.go

@@ -97,10 +97,6 @@ func (l Label) LayoutDetailed(gtx layout.Context, lt *text.Shaper, font font.Fon
 	return dims, TextInfo{Truncated: it.truncated}
 }
 
-func r2p(r clip.Rect) clip.Op {
-	return clip.Stroke{Path: r.Path(), Width: 1}.Op()
-}
-
 // textIterator computes the bounding box of and paints text.
 type textIterator struct {
 	// viewport is the rectangle of document coordinates that the iterator is

widget/selectable.go

@@ -77,8 +77,6 @@ type Selectable struct {
 	focused   bool
 	dragging  bool
 	dragger   gesture.Drag
-	scroller  gesture.Scroll
-	scrollOff image.Point
 
 	clicker gesture.Click
 	// events is the list of events not yet processed.