add expanded net, mem widgets

widgets/expanded_net.go

@@ -0,0 +1,45 @@
+package widgets
+
+import (
+	"fmt"
+
+	ui "github.com/gizak/termui"
+)
+
+type ExpandedNet struct {
+	*ui.Sparklines
+	rxHist IntHistData
+	txHist IntHistData
+}
+
+func NewExpandedNet() *ExpandedNet {
+	net := &ExpandedNet{ui.NewSparklines(), NewIntHistData(60), NewIntHistData(60)}
+
+	rx := ui.NewSparkline()
+	rx.Title = "RX"
+	rx.Height = 3
+	rx.Data = net.rxHist.data
+	rx.TitleColor = ui.ColorDefault
+	rx.LineColor = ui.ColorGreen
+
+	tx := ui.NewSparkline()
+	tx.Title = "TX"
+	tx.Height = 3
+	tx.Data = net.txHist.data
+	tx.TitleColor = ui.ColorDefault
+	tx.LineColor = ui.ColorGreen
+
+	net.Lines = []ui.Sparkline{rx, tx}
+	net.Height = 12
+	net.Width = 50
+	net.X = 0
+	net.Y = 15
+	return net
+}
+
+func (w *ExpandedNet) Update(rx int64, tx int64) {
+	w.rxHist.Append(int(rx))
+	w.txHist.Append(int(tx))
+	w.Lines[0].Title = fmt.Sprintf("RX (%s)", byteFormat(rx))
+	w.Lines[1].Title = fmt.Sprintf("TX (%s)", byteFormat(tx))
+}