Add navigation components 131-150; pixel Pad, Finish, Park, Since

navigation/breadcrumbs.go

@@ -0,0 +1,56 @@
+package navigation
+
+import (
+	"log/slog"
+
+	"github.com/egoist/mygo/ui"
+
+	"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
+)
+
+type BreadcrumbsOptions struct {
+	Disabled bool
+}
+
+type BreadcrumbsResult struct {
+	Element *ui.Element
+	// Clicked is the part clicked, or -1.
+	Clicked int
+}
+
+// Breadcrumbs is a path whose parts, but the last, link.
+func Breadcrumbs(c *ui.Context, text string, parts []string, o BreadcrumbsOptions) BreadcrumbsResult {
+	k := pixel.K(c)
+	res := BreadcrumbsResult{Clicked: -1}
+	res.Element = ui.Row(c).Gap(k.D(3)).AlignItems(ui.Center).Role(ui.RoleGroup).Label(text).Children(func() {
+		for i, part := range parts {
+			if i == len(parts)-1 {
+				pixel.Text(c, part, pixel.TextOptions{})
+				break
+			}
+			shell, base, st := pixel.Shell(c, func() *ui.Element {
+				return ui.ButtonBase(c).Role(ui.RoleLink).Label(part).Disabled(o.Disabled)
+			})
+			if base.Clicked() {
+				res.Clicked = i
+			}
+			shell.Size(k.D(pixel.Measure(part)+2), k.D(pixel.LineHeight)).Draw(func(p *ui.Painter, r ui.Rect) {
+				g := k.Canvas(p, r)
+				ink := pixel.Accent
+				if st.Hover {
+					ink = pixel.AccentLit
+				}
+				g.Text(1, 0, part, ink, 1)
+				g.HLine(1, g.H-2, g.W-2, ink)
+				g.Finish(st)
+			})
+			ui.Box(c).Size(k.D(pointer.W), k.D(pointer.H)).Draw(func(p *ui.Painter, r ui.Rect) {
+				k.Canvas(p, r).Sprite(0, 0, pointer, 0, pixel.Faint, 1)
+			})
+		}
+	})
+	if res.Clicked >= 0 {
+		slog.Debug("8bit: breadcrumb", "part", parts[res.Clicked])
+	}
+	return res
+}