andlabs-ui/redo/imagelist.go

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// 16 august 2014
package ui
import (
"image"
)
// ImageList is a list of images that can be used in the rows of a Table or Tree.
// ImageList maintains a copy of each image added.
// Images in an ImageList will be automatically scaled to the needed size.
type ImageList interface {
// Append inserts an image into the ImageList.
Append(i *image.RGBA)
// Len returns the number of images in the ImageList.
Len() ImageIndex
imageListApply
}
// NewImageList creates a new ImageList.
// The ImageList is initially empty.
func NewImageList() ImageList {
return newImageList()
}
// ImageIndex is a special type used to denote an entry in a Table or Tree's ImageList.
type ImageIndex int