Method Create

declarative/treeview.go:59–92

(builder *Builder)

}

func (tv TreeView) Create(builder *Builder) error {
	w, err := walk.NewTreeView(builder.Parent())
	if err != nil {
		return err
	}

	if tv.AssignTo != nil {
		*tv.AssignTo = w
	}

	return builder.InitWidget(tv, w, func() error {
		if tv.ItemHeight > 0 {
			w.SetItemHeight(w.IntFrom96DPI(tv.ItemHeight)) // VERIFY: Item height should resize on DPI change.
		}

		if err := w.SetModel(tv.Model); err != nil {
			return err
		}

		if tv.OnCurrentItemChanged != nil {
			w.CurrentItemChanged().Attach(tv.OnCurrentItemChanged)
		}

		if tv.OnExpandedChanged != nil {
			w.ExpandedChanged().Attach(tv.OnExpandedChanged)
		}

		if tv.OnItemActivated != nil {
			w.ItemActivated().Attach(tv.OnItemActivated)
		}

		return nil
	})
}