cmd/scroll: update x/y scrolling demo.

cmd/scroll/main.go

@@ -80,7 +80,7 @@ func diffInsets(x, y app.Insets) bool {
 
 func eventloop() {
 	w := app.NewWindow(
-		app.WithWidth(ui.Dp(200)),
+		app.WithWidth(ui.Dp(400)),
 		app.WithHeight(ui.Dp(400)),
 		app.WithTitle("Tickets"))
 	ctx := gio.NewContext(w)
@@ -93,8 +93,14 @@ func eventloop() {
 	bg := gio.NewBackground(gio.Color(gray2))
 
 	margin := gio.NewInset(gio.Size(ui.Dp(10)))
+	f1 := gio.NewFlex(gio.Axis(layout.Horizontal))
+	lbar := gio.NewLabel("    ", gio.Face(face))
+	f2 := gio.NewFlex(gio.Axis(layout.Vertical))
+	topbar := gio.NewLabel("Scroll X and Y. Click to select", gio.Face(face))
+
 	sh := gio.HScroll(gio.NewFlex(gio.Axis(layout.Horizontal)))
 	sv := gio.VScroll(gio.NewFlex(gio.Axis(layout.Vertical)))
+
 	numlabs := 50
 	labs := make([][]gio.Widget, numlabs)
 	sels := make([][]bool, numlabs)
@@ -127,7 +133,7 @@ func eventloop() {
 			}
 
 			sysbg(sysinset(bg(margin(
-				sh(
+			    f1(lbar,f2(topbar,sh(
 					sv(labs[0]...),
 					sv(labs[1]...),
 					sv(labs[2]...),
@@ -144,7 +150,7 @@ func eventloop() {
 					sv(labs[13]...),
 					sv(labs[14]...),
 					sv(labs[15]...),
-			))))).Layout(ctx)
+			))))))).Layout(ctx)
 			ctx.Update()
 		}
 	}}