rename expanded -> single view

cwidgets/single/main.go

@@ -0,0 +1,128 @@
+package single
+
+import (
+	"github.com/bcicen/ctop/logging"
+	"github.com/bcicen/ctop/models"
+	ui "github.com/gizak/termui"
+)
+
+var (
+	log       = logging.Init()
+	sizeError = termSizeError()
+	colWidth  = [2]int{65, 0} // left,right column width
+)
+
+type Single struct {
+	Info  *Info
+	Net   *Net
+	Cpu   *Cpu
+	Mem   *Mem
+	IO    *IO
+	X, Y  int
+	Width int
+}
+
+func NewSingle(id string) *Single {
+	if len(id) > 12 {
+		id = id[:12]
+	}
+	return &Single{
+		Info:  NewInfo(id),
+		Net:   NewNet(),
+		Cpu:   NewCpu(),
+		Mem:   NewMem(),
+		IO:    NewIO(),
+		Width: ui.TermWidth(),
+	}
+}
+
+func (e *Single) Up() {
+	if e.Y < 0 {
+		e.Y++
+		e.Align()
+		ui.Render(e)
+	}
+}
+
+func (e *Single) Down() {
+	if e.Y > (ui.TermHeight() - e.GetHeight()) {
+		e.Y--
+		e.Align()
+		ui.Render(e)
+	}
+}
+
+func (e *Single) SetWidth(w int)      { e.Width = w }
+func (e *Single) SetMeta(k, v string) { e.Info.Set(k, v) }
+
+func (e *Single) SetMetrics(m models.Metrics) {
+	e.Cpu.Update(m.CPUUtil)
+	e.Net.Update(m.NetRx, m.NetTx)
+	e.Mem.Update(int(m.MemUsage), int(m.MemLimit))
+	e.IO.Update(m.IOBytesRead, m.IOBytesWrite)
+}
+
+// Return total column height
+func (e *Single) GetHeight() (h int) {
+	h += e.Info.Height
+	h += e.Net.Height
+	h += e.Cpu.Height
+	h += e.Mem.Height
+	h += e.IO.Height
+	return h
+}
+
+func (e *Single) Align() {
+	// reset offset if needed
+	if e.GetHeight() <= ui.TermHeight() {
+		e.Y = 0
+	}
+
+	y := e.Y
+	for _, i := range e.all() {
+		i.SetY(y)
+		y += i.GetHeight()
+	}
+
+	if e.Width > colWidth[0] {
+		colWidth[1] = e.Width - (colWidth[0] + 1)
+	}
+	e.Mem.Align()
+	log.Debugf("align: width=%v left-col=%v right-col=%v", e.Width, colWidth[0], colWidth[1])
+}
+
+func calcWidth(w int) {
+}
+
+func (e *Single) Buffer() ui.Buffer {
+	buf := ui.NewBuffer()
+	if e.Width < (colWidth[0] + colWidth[1]) {
+		ui.Clear()
+		buf.Merge(sizeError.Buffer())
+		return buf
+	}
+	buf.Merge(e.Info.Buffer())
+	buf.Merge(e.Cpu.Buffer())
+	buf.Merge(e.Mem.Buffer())
+	buf.Merge(e.Net.Buffer())
+	buf.Merge(e.IO.Buffer())
+	return buf
+}
+
+func (e *Single) all() []ui.GridBufferer {
+	return []ui.GridBufferer{
+		e.Info,
+		e.Cpu,
+		e.Mem,
+		e.Net,
+		e.IO,
+	}
+}
+
+func termSizeError() *ui.Par {
+	p := ui.NewPar("screen too small!")
+	p.Height = 1
+	p.Width = 20
+	p.Border = false
+	return p
+}