Function zoomScale

internal/app/notes.go:27–44

zoomScale returns the render-time scale factor applied to BOTH the note dimensions AND the note positions. This is "workspace zoom": at zoom -3 the whole board is shrunk so more notes fit; at zoom +1 notes are bigger and spread further apart.

(z int)

// the whole board is shrunk so more notes fit; at zoom +1 notes are
// bigger and spread further apart.
func zoomScale(z int) float32 {
	switch z {
	case -3:
		return 0.40
	case -2:
		return 0.55
	case -1:
		return 0.75
	case 0:
		return 1.00
	case +1:
		return 1.35
	}
	if z < ZoomMin {
		return zoomScale(ZoomMin)
	}
	return zoomScale(ZoomMax)
}

type NoteDims struct{ W, H int }