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package widgets
import (
"fmt"
"log"
"math"
"strconv"
"time"
"github.com/distatus/battery"
ui "github.com/xxxserxxx/gotop/termui"
)
type BatteryWidget struct {
*ui.LineGraph
updateInterval time.Duration
}
func NewBatteryWidget(horizontalScale int) *BatteryWidget {
self := &BatteryWidget{
LineGraph: ui.NewLineGraph(),
updateInterval: time.Minute,
}
self.Title = " Battery Status "
self.HorizontalScale = horizontalScale
// intentional duplicate
// adds 2 datapoints to the graph, otherwise the dot is difficult to see
self.update()
self.update()
go func() {
for range time.NewTicker(self.updateInterval).C {
self.Lock()
self.update()
self.Unlock()
}
}()
return self
}
func makeId(i int) string {
return "Batt" + strconv.Itoa(i)
}
func (b *BatteryWidget) Scale(i int) {
b.LineGraph.HorizontalScale = i
}
func (self *BatteryWidget) update() {
batteries, err := battery.GetAll()
if err != nil {
log.Printf("failed to get battery info: %v", err)
return
}
for i, battery := range batteries {
id := makeId(i)
percentFull := math.Abs(battery.Current/battery.Full) * 100.0
self.Data[id] = append(self.Data[id], percentFull)
self.Labels[id] = fmt.Sprintf("%3.0f%% %.0f/%.0f", percentFull, math.Abs(battery.Current), math.Abs(battery.Full))
}
}
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