40 lines
1.1 KiB
Go
40 lines
1.1 KiB
Go
package input
|
|
|
|
import (
|
|
"github.com/egoist/mygo/ui"
|
|
|
|
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
|
|
)
|
|
|
|
type FaderOptions struct {
|
|
Min, Max float64
|
|
// Height is the travel in dots; zero means 64.
|
|
Height int
|
|
Disabled bool
|
|
}
|
|
|
|
type FaderResult = SliderResult
|
|
|
|
// Fader is a vertical slider with a cap and ticks.
|
|
func Fader(c *ui.Context, text string, value *float64, o FaderOptions) FaderResult {
|
|
k := pixel.K(c)
|
|
lo, hi := bounds(o.Min, o.Max)
|
|
h := pixel.Or("Fader Height", o.Height, 64)
|
|
shell, st, changed := slide(c, value, rail{lo: lo, hi: hi, vertical: true, label: text, disabled: o.Disabled})
|
|
shell.Size(k.D(16), k.D(h)).Draw(func(p *ui.Painter, r ui.Rect) {
|
|
g := k.Canvas(p, r)
|
|
for t := 0; t <= 4; t++ {
|
|
y := 3 + t*(g.H-7)/4
|
|
g.HLine(0, y, 3, pixel.Faint)
|
|
g.HLine(13, y, 3, pixel.Faint)
|
|
}
|
|
g.Frame(6, 0, 4, g.H, pixel.Sunken, pixel.Well)
|
|
y := g.H - 7 - knobAt(*value, lo, hi, g.H-7)
|
|
g.Rect(7, y+3, 2, g.H-y-4, pixel.Accent)
|
|
g.Frame(2, y, 12, 7, pixel.Raised, pixel.Face)
|
|
g.HLine(4, y+3, 8, pixel.Edge)
|
|
finish(g, st)
|
|
})
|
|
return report(shell, changed, "fader", text, *value)
|
|
}
|