Add placeholder methods for recommended sizes

layouts/grid.go

@@ -4,7 +4,7 @@ import "math"
 import "image"
 import "git.tebibyte.media/tomo/tomo"
 
-var _ tomo.Layout = Grid { }
+var _ tomo.Layout = new(Grid)
 
 // Grid is a layout that arranges boxes in a grid formation with distinct rows
 // and columns. It is great for creating forms.
@@ -108,3 +108,13 @@ func expand (hints tomo.LayoutHints, sizes []int, space int, expands func (int)
 func ceilDiv (x, y int) int {
 	return int(math.Ceil(float64(x) / float64(y)))
 }
+
+func (this *Grid) RecommendedHeight (hints tomo.LayoutHints, boxes []tomo.Box, width int) int {
+	// TODO
+	return 0
+}
+
+func (this *Grid) RecommendedWidth (hints tomo.LayoutHints, boxes []tomo.Box, height int) int {
+	// TODO
+	return 0
+}