add expanded net, mem widgets

widgets/expanded_cpu.go

@@ -5,26 +5,24 @@ import (
 )
 
 type ExpandedCpu struct {
-	*ui.BarChart
-	hist HistData
+	*ui.LineChart
+	hist FloatHistData
 }
 
 func NewExpandedCpu() *ExpandedCpu {
-	cpu := &ExpandedCpu{ui.NewBarChart(), NewHistData(12)}
-	cpu.BorderLabel = "CPU Util"
+	cpu := &ExpandedCpu{ui.NewLineChart(), NewFloatHistData(60)}
+	cpu.BorderLabel = "CPU"
 	cpu.Height = 10
 	cpu.Width = 50
-	cpu.BarColor = ui.ColorGreen
-	cpu.BarWidth = 3
-	cpu.BarGap = 1
 	cpu.X = 0
 	cpu.Y = 4
 	cpu.Data = cpu.hist.data
 	cpu.DataLabels = cpu.hist.labels
+	cpu.AxesColor = ui.ColorDefault
+	cpu.LineColor = ui.ColorGreen
 	return cpu
 }
 
 func (w *ExpandedCpu) Update(val int) {
-	w.hist.Append(val)
-	w.Data = w.hist.data
+	w.hist.Append(float64(val))
 }