46 lines
980 B
Go
46 lines
980 B
Go
package render
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import (
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"image"
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"image/color"
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"golang.org/x/image/draw"
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"golang.org/x/image/font"
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"golang.org/x/image/font/basicfont"
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"golang.org/x/image/math/fixed"
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)
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func pt(p fixed.Point26_6) image.Point {
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return image.Point{
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X: int(p.X+32) >> 6,
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Y: int(p.Y+32) >> 6,
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}
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}
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func RenderText(text string, scale int, col, bgCol color.Color) *image.NRGBA {
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// @incomplete: draw with texture via Drawer.Src
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face := basicfont.Face7x13
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stringBounds, _ := font.BoundString(face, text)
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b := image.Rectangle{pt(stringBounds.Min), pt(stringBounds.Max)}
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img := image.NewNRGBA(b)
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// fill with black bg
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if (bgCol != color.NRGBA{}) {
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draw.Draw(img, b, image.NewUniform(bgCol), image.Point{}, draw.Src)
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}
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d := font.Drawer{
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Dst: img,
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Src: image.NewUniform(col),
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Face: face,
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}
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d.DrawString(text)
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// normalize bounds to start at 0,0
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img.Rect = img.Bounds().Sub(img.Bounds().Min)
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// scale up, as this font is quite small
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return ScaleImage(img, scale)
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}
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