rename expanded -> single view

cwidgets/single/cpu.go

@@ -0,0 +1,32 @@
+package single
+
+import (
+	ui "github.com/gizak/termui"
+)
+
+type Cpu struct {
+	*ui.LineChart
+	hist FloatHist
+}
+
+func NewCpu() *Cpu {
+	cpu := &Cpu{ui.NewLineChart(), NewFloatHist(55)}
+	cpu.Mode = "dot"
+	cpu.BorderLabel = "CPU"
+	cpu.Height = 12
+	cpu.Width = colWidth[0]
+	cpu.X = 0
+	cpu.DataLabels = cpu.hist.Labels
+
+	// hack to force the default minY scale to 0
+	tmpData := []float64{20}
+	cpu.Data = tmpData
+	_ = cpu.Buffer()
+
+	cpu.Data = cpu.hist.Data
+	return cpu
+}
+
+func (w *Cpu) Update(val int) {
+	w.hist.Append(float64(val))
+}