typeset/debug/debug.go
2024-09-20 00:13:01 -04:00

29 lines
1.1 KiB
Go

package debug
import "image/draw"
import "image/color"
import "golang.org/x/image/math/fixed"
import "git.tebibyte.media/tomo/typeset"
import "git.tebibyte.media/tomo/typeset/internal"
// DrawBounds draws the LayoutBounds, MinimumSize, and LayoutBoundsSpace of a
// TypeSetter to the given image using these colors:
// - Red: LayoutBounds
// - Green: MinimumSize
// - Blue: LayoutBoundsSpace
func DrawBounds (destination draw.Image, setter *typeset.TypeSetter, offset fixed.Point26_6) {
blue := color.RGBA { B: 255, A: 255 }
red := color.RGBA { R: 255, A: 255 }
green := color.RGBA { G: 255, A: 255 }
layoutBoundsSpace := setter.LayoutBoundsSpace()
layoutBounds := setter.LayoutBounds()
minimum := setter.MinimumSize()
minimumRect := internal.RoundRect(fixed.Rectangle26_6 { Max: minimum }.Add(offset).Add(layoutBounds.Min))
internal.DrawRectangleOutline(destination, minimumRect, green)
internal.DrawRectangleOutline(destination, internal.RoundRect(layoutBoundsSpace.Add(offset)), blue)
internal.DrawRectangleOutline(destination, internal.RoundRect(layoutBounds.Add(offset)), red)
}