58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
package feedback
|
|
|
|
import (
|
|
"fmt"
|
|
"math"
|
|
"strconv"
|
|
|
|
"github.com/egoist/mygo/ui"
|
|
|
|
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
|
|
)
|
|
|
|
type ProgressOptions struct {
|
|
// Width is the bar in dots; zero means 120.
|
|
Width int
|
|
// Percent shows the number after the bar.
|
|
Percent bool
|
|
}
|
|
|
|
// Progress fills chunk by chunk; below zero a block runs.
|
|
func Progress(c *ui.Context, text string, value float64, o ProgressOptions) *ui.Element {
|
|
k := pixel.K(c)
|
|
if value > 1 || math.IsNaN(value) {
|
|
panic(fmt.Sprintf("feedback: Progress value %v is past 1", value))
|
|
}
|
|
w := pixel.Or("Progress Width", o.Width, 120)
|
|
n := (w - 3) / 5
|
|
pct := strconv.Itoa(int(math.Round(value*100))) + "%"
|
|
e := ui.Box(c).Role(ui.RoleProgress).Label(text)
|
|
full := w
|
|
if value < 0 {
|
|
e.Description(k.Msg("loading"))
|
|
} else {
|
|
e.Description(pct)
|
|
if o.Percent {
|
|
full += 4 + pixel.MicroWidth("100%")
|
|
}
|
|
}
|
|
return e.Size(k.D(full), k.D(10)).Draw(func(p *ui.Painter, r ui.Rect) {
|
|
g := k.Canvas(p, r)
|
|
g.Frame(0, 0, w, 10, pixel.Sunken, pixel.Well)
|
|
chunk := func(i int) { g.Rect(3+i*5, 3, 4, 4, pixel.Accent) }
|
|
if value < 0 {
|
|
at := pingpong(g.Busy(12), n-3)
|
|
for i := range 3 {
|
|
chunk(at + i)
|
|
}
|
|
return
|
|
}
|
|
for i := range int(value * float64(n)) {
|
|
chunk(i)
|
|
}
|
|
if o.Percent {
|
|
g.Micro(w+4, 2, pct, pixel.Ink, 1)
|
|
}
|
|
})
|
|
}
|