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package widget
import (
"image"
"image/color"
"sync"
"volute/gui"
"volute/gui/layout"
)
type Node[T any] struct {
Label string
Value T
Children []Node[T]
expanded bool
}
func Tree[T any](trees []Node[T], r image.Rectangle, focus FocusSlave, mux *gui.Mux, wg *sync.WaitGroup) {
defer wg.Done()
var nodes []string
for _, root := range trees {
nodes = append(nodes, flatten(root, 0)...)
}
bounds := layout.Grid{
Rows: populate(make([]int, len(nodes)), 1),
Background: color.Gray{255},
Gap: 1,
Split: layout.EvenSplit,
SplitRows: layout.TextRowSplit,
Margin: 0,
Border: 0,
BorderColor: color.Gray{16},
Flip: false,
}.Lay(r)
for i := range nodes {
wg.Add(1)
go Label(nodes[i], bounds[i], mux.MakeEnv(), wg)
}
/*
globalFocus := focus;
localFocus := NewFocusMaster([]int{1, 1, 1});
defer localFocus.Close()
*/
// TODO
}
func flatten[T any](root Node[T], depth int) []string {
indent := string(populate(make([]byte, 2*depth), ' '))
nodes := []string{indent + root.Label}
root.expanded = true // TODO: remove me
if root.expanded {
for _, c := range root.Children {
nodes = append(nodes, flatten(c, depth+1)...)
}
}
return nodes
}
func populate[T any](arr []T, v T) []T {
for i := range arr {
arr[i] = v
}
return arr
}
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