func ReadThemes() [][]color.Color {
buf := bytes.NewBufferString(c1)
r := bufio.NewReader(buf)
themes := make([][]color.Color, 0)
line, err := r.ReadString('\n')
for {
if err != nil && io.EOF == err {
break
}
line, err = r.ReadString('\n')
line = strings.TrimRight(line, "\n")
colors := make([]color.Color, 0)
clrs := strings.Split(line, " ")
for _, c := range clrs {
if c != "" {
rgb := hex_color.HexColor(c)
colors = append(colors, rgb)
}
}
themes = append(themes, colors)
}
return themes
}
func (d *GrainLine) Render() {
d.Clear("fff")
d.Scale(1.0, -1.0)
d.Translate(0.0, -d.Dim.Y)
pos := vec.New(100.0, 100.0)
v := vec.New(Cos(PI/6.0), Sin(PI/6.0))
for y := 101.0; y < 110.0; y++ {
c := hex_color.HexColor("0f0")
d.SetStrokeColor(c)
a := vec.New(pos.Pts())
for s := 1.0; s < 100.0; s++ {
c.WithAlpha((101.0 - s) / 100.0)
d.SetStrokeColor(c)
d.BeginPath()
d.MoveTo(a.Pts())
a = v.Scale(s, s).Add(*pos)
d.LineTo(a.Pts())
d.Stroke()
}
pos = vec.New(pos.X, y)
}
}
func (g *Canvas) Clear(hex string) {
g.SetFillColor(hex_color.HexColor(hex))
g.ClearRect(g.Points())
}