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panes.go
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/
panes.go
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package panes
import (
"image"
"github.com/fogleman/gg"
"github.com/jmacd/nerve/pru/program/data"
"github.com/lucasb-eyer/go-colorful"
)
type Panes struct {
}
func New() *Panes {
return &Panes{}
}
func (c *Panes) setColor(ggctx *gg.Context, data *data.Data, x, y, z float64) {
var color colorful.Color
switch {
case data.ButtonsToggle[0]:
color = colorful.Hsv(360*x, y, z)
case data.ButtonsToggle[1]:
color = colorful.Lab(x, y, z)
case data.ButtonsToggle[2]:
color = colorful.Luv(x, y*2-1, z*2-1)
case data.ButtonsToggle[3]:
color = colorful.LuvLCh(x*360, y*2-1, z*2-1)
case data.ButtonsToggle[4]:
color = colorful.Xyz(x, y, z)
case data.ButtonsToggle[5]:
color = colorful.Xyy(x, y, z)
case data.ButtonsToggle[6]:
color = colorful.LabWhiteRef(x, y, z, [3]float64{data.KnobsRow1[0].Float(), data.KnobsRow1[1].Float(), data.KnobsRow1[2].Float()})
case data.ButtonsToggle[7]:
color = colorful.LuvWhiteRef(x, y*2-1, z*2-1, [3]float64{data.KnobsRow1[0].Float(), data.KnobsRow1[1].Float(), data.KnobsRow1[2].Float()})
}
if color.R != 0 || color.G != 0 || color.B != 0 {
x, y, z = color.R, color.G, color.B
}
ggctx.SetRGB(x, y, z)
}
func (c *Panes) Draw(data *data.Data, img *image.RGBA) {
ggctx := gg.NewContextForRGBA(img)
ggctx.DrawRectangle(0, 0, 64, 32)
c.setColor(
ggctx,
data,
data.Sliders[0].Float(),
data.Sliders[1].Float(),
data.Sliders[2].Float(),
)
ggctx.Fill()
ggctx.DrawRectangle(0, 32, 64, 32)
c.setColor(
ggctx,
data,
data.Sliders[3].Float(),
data.Sliders[4].Float(),
data.Sliders[5].Float(),
)
ggctx.Fill()
}