1 files changed, 0 insertions, 118 deletions
diff --git a/layout/layer.go b/layout/layer.go
deleted file mode 100644
index 42000a5..0000000
--- a/layout/layer.go
+++ /dev/null
@@ -1,118 +0,0 @@
-package layout
-
-import (
-	"container/list"
-	"errors"
-	"image"
-	"image/draw"
-
-	"github.com/faiface/gui/event"
-)
-
-type EventImageFlusher interface {
-	Event(pattern string, handler func(event string) bool)
-	Image() *image.RGBA
-	Flush(r image.Rectangle)
-}
-
-type LayerList struct {
-	event.Dispatch
-	dst    EventImageFlusher
-	layers list.List
-}
-
-func NewLayerList(dst EventImageFlusher) *LayerList {
-	l := &LayerList{dst: dst}
-
-	dst.Event("", l.Happen)
-
-	l.Event("resize", func(evt string) bool {
-		var x1, y1, x2, y2 int
-		event.Sscan(evt, &x1, &y1, &x2, &y2)
-
-		for e := l.layers.Back(); e != nil; e = e.Prev() {
-			layer := e.Value.(*Layer)
-			rgba := image.NewRGBA(dst.Image().Bounds())
-			draw.Draw(rgba, layer.rgba.Bounds(), layer.rgba, layer.rgba.Bounds().Min, draw.Src)
-			layer.rgba = rgba
-		}
-
-		return false
-	})
-
-	r := dst.Image().Bounds()
-	l.Happen(event.Sprint("resize", r.Min.X, r.Min.Y, r.Max.X, r.Max.Y))
-
-	return l
-}
-
-func (l *LayerList) Add() *Layer {
-	layer := &Layer{
-		lst:  l,
-		rgba: image.NewRGBA(l.dst.Image().Bounds()),
-	}
-	layer.elm = l.layers.PushFront(layer)
-	return layer
-}
-
-func (l *LayerList) Remove(layer *Layer) {
-	if layer.lst == nil {
-		panic(errors.New("layer: Remove: layer already removed"))
-	}
-	l.layers.Remove(layer.elm)
-	layer.lst = nil
-}
-
-func (l *LayerList) Front(layer *Layer) {
-	if layer.lst == nil {
-		panic(errors.New("layer: Front: layer removed"))
-	}
-	l.layers.MoveToFront(layer.elm)
-}
-
-func (l *LayerList) Happen(event string) bool {
-	if l.Dispatch.Happen(event) {
-		return true
-	}
-	for e := l.layers.Front(); e != nil; e = e.Next() {
-		layer := e.Value.(*Layer)
-		if layer.Happen(event) {
-			return true
-		}
-	}
-	return false
-}
-
-func (l *LayerList) Flush(r image.Rectangle) {
-	if l.dst == nil {
-		panic(errors.New("layer: Flush: no destination"))
-	}
-	draw.Draw(l.dst.Image(), r, image.Transparent, r.Min, draw.Src)
-	for e := l.layers.Back(); e != nil; e = e.Prev() {
-		layer := e.Value.(*Layer)
-		draw.Draw(l.dst.Image(), r, layer.rgba, r.Min, draw.Over)
-	}
-	l.dst.Flush(r)
-}
-
-type Layer struct {
-	event.Dispatch
-	lst  *LayerList
-	elm  *list.Element
-	rgba *image.RGBA
-}
-
-func (l *Layer) List() *LayerList {
-	return l.lst
-}
-
-func (l *Layer) Image() *image.RGBA {
-	return l.rgba
-}
-
-func (l *Layer) Flush(r image.Rectangle) {
-	if l.lst == nil {
-		panic(errors.New("layer: Flush: layer removed"))
-	}
-	l.lst.Flush(r)
-}