zntg/ui/drawoptions.go

package ui

import (
	"image/color"

	"opslag.de/schobers/geom"
)

type DrawOptions struct {
	Tint  color.Color
	Scale *geom.PointF32
}

func ScaleToHeight(size geom.PointF32, height float32) (*geom.PointF32, float32) {
	if size.Y == height {
		return nil, size.X
	}
	factor := height / size.Y
	return &geom.PointF32{X: factor, Y: factor}, factor * size.X
}