andlabs-ui/redo/proposals/imagelist.md

Images in Tables and Trees

In yet another "blame Windows" moment:

type ImageList interface {
	Add(image *image.Image)
	Remove(index int)
	Len() int
}
func NewImageList() ImageList

type Table/Tree interface {
	// ...
	LoadImageList(ImageList)
}

type ImageIndex int

For Table, a field of type ImageIndex represents an index into the ImageList.

For Tree, there is a field ImageIndex which contains the index of the entry.

Note the name of the methods on both being LoadImageList(): the image list is copied, and any future changes will not be reflected. (This is to accomodate check boxes in Table, which must be done manually.)

TODO appropriate size of images in an ImageList