88 lines
1.5 KiB
Go
88 lines
1.5 KiB
Go
package letter
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import (
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"github.com/potassium5703/imageutils"
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"image"
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"image/color"
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"image/draw"
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)
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type Letter string
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var Nums = []Letter{
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"111101111",
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"010010010",
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"110010011",
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"111011111",
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"101111001",
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"011010110",
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"001111111",
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"111001001",
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"011111111",
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"111111001",
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}
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var Empty = Letter("000000000").Render()
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func (l Letter) ColorModel() color.Model {
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return color.RGBAModel
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}
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func (l Letter) Bounds() image.Rectangle {
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return image.Rect(0, 0, 3, 3)
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}
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func (l Letter) At(x, y int) color.Color {
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target := l[x+y*3]
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if target != '1' {
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return color.Alpha{}
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}
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return color.Black
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}
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func (l Letter) Render() image.Image {
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img := image.NewRGBA(l.Bounds())
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draw.Draw(img, l.Bounds(), image.White, image.ZP, draw.Src)
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draw.Draw(img, l.Bounds(), l, image.ZP, draw.Over)
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return img
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}
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type blank struct {
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image.Image
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color.Color
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imageutils.Side
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}
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func (b blank) ColorModel() color.Model { return b.Image.ColorModel() }
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func (b blank) Bounds() image.Rectangle {
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rect := image.Rectangle{}
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switch b.Side {
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case imageutils.Left:
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fallthrough
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case imageutils.Right:
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rect = image.Rectangle{
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image.ZP,
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image.Point{
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1, b.Image.Bounds().Dy(),
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},
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}
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case imageutils.Up:
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fallthrough
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case imageutils.Down:
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rect = image.Rectangle{
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image.ZP,
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image.Point{
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b.Image.Bounds().Dx(), 1,
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},
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}
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}
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return rect
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}
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func (b blank) At(x, y int) color.Color { return b.Color }
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func Blank(img image.Image, clr color.Color, side imageutils.Side) image.Image {
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return imageutils.Concat(img, blank{img, clr, side}, side)
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}
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