func init() {
err := termui.Init()
if err != nil {
panic(err)
}
termui.UseTheme("default")
ui = NewUi()
refreshTicker := time.NewTicker(time.Millisecond * 50)
evt := termui.EventCh()
ui.refresh()
go func() {
for {
select {
case e := <-evt:
if e.Type == termui.EventKey && e.Ch == 'q' {
os.Exit(1)
}
if e.Type == termui.EventResize {
ui.gridWidth = termui.TermWidth()
ui.refresh()
}
case <-refreshTicker.C:
ui.refresh()
}
}
}()
}
func main() {
err := ui.Init()
if err != nil {
panic(err)
}
defer ui.Close()
w11 := ui.NewPar("Hello world")
w11.Height = 10
w11.Border.Label = "Hello"
w11.Border.LabelFgColor = ui.ColorGreen
w12 := ui.NewPar("first")
w12.Height = 20
w2 := ui.NewPar("second")
w2.Height = 20
ui.Body.AddRows(
ui.NewRow(
ui.NewCol(6, 0, w11),
ui.NewCol(6, 0, w12)),
ui.NewRow(
ui.NewCol(12, 0, w2)))
ui.Body.Align()
ui.Render(ui.Body)
<-ui.EventCh()
}
func main() {
err := termui.Init()
if err != nil {
panic(err)
}
defer termui.Close()
termui.UseTheme("helloworld")
strs := []string{
"[0] github.com/gizak/termui",
"[1] 你好，世界",
"[2] こんにちは世界",
"[3] keyboard.go",
"[4] output.go",
"[5] random_out.go",
"[6] dashboard.go",
"[7] nsf/termbox-go"}
ls := termui.NewList()
ls.Items = strs
ls.ItemFgColor = termui.ColorYellow
ls.Border.Label = "List"
ls.Height = 7
ls.Width = 25
ls.Y = 0
termui.Render(ls)
<-termui.EventCh()
}
func main() {
err := termui.Init()
if err != nil {
panic(err)
}
defer termui.Close()
termui.UseTheme("helloworld")
bc := termui.NewBarChart()
data := []int{3, 2, 5, 3, 9, 5, 3, 2, 5, 8, 3, 2, 4, 5, 3, 2, 5, 7, 5, 3, 2, 6, 7, 4, 6, 3, 6, 7, 8, 3, 6, 4, 5, 3, 2, 4, 6, 4, 8, 5, 9, 4, 3, 6, 5, 3, 6}
bclabels := []string{"S0", "S1", "S2", "S3", "S4", "S5"}
bc.Border.Label = "Bar Chart"
bc.Data = data
bc.Width = 26
bc.Height = 10
bc.DataLabels = bclabels
bc.TextColor = termui.ColorGreen
bc.BarColor = termui.ColorRed
bc.NumColor = termui.ColorYellow
termui.Render(bc)
<-termui.EventCh()
}
func main() {
err := termui.Init()
if err != nil {
panic(err)
}
defer termui.Close()
termui.UseTheme("helloworld")
data := []int{4, 2, 1, 6, 3, 9, 1, 4, 2, 15, 14, 9, 8, 6, 10, 13, 15, 12, 10, 5, 3, 6, 1, 7, 10, 10, 14, 13, 6}
spl0 := termui.NewSparkline()
spl0.Data = data[3:]
spl0.Title = "Sparkline 0"
spl0.LineColor = termui.ColorGreen
// single
spls0 := termui.NewSparklines(spl0)
spls0.Height = 2
spls0.Width = 20
spls0.HasBorder = false
spl1 := termui.NewSparkline()
spl1.Data = data
spl1.Title = "Sparkline 1"
spl1.LineColor = termui.ColorRed
spl2 := termui.NewSparkline()
spl2.Data = data[5:]
spl2.Title = "Sparkline 2"
spl2.LineColor = termui.ColorMagenta
// group
spls1 := termui.NewSparklines(spl0, spl1, spl2)
spls1.Height = 8
spls1.Width = 20
spls1.Y = 3
spls1.Border.Label = "Group Sparklines"
spl3 := termui.NewSparkline()
spl3.Data = data
spl3.Title = "Enlarged Sparkline"
spl3.Height = 8
spl3.LineColor = termui.ColorYellow
spls2 := termui.NewSparklines(spl3)
spls2.Height = 11
spls2.Width = 30
spls2.Border.FgColor = termui.ColorCyan
spls2.X = 21
spls2.Border.Label = "Tweeked Sparkline"
termui.Render(spls0, spls1, spls2)
<-termui.EventCh()
}
func readMessage(message *imap.MessageInfo) {
set := new(imap.SeqSet)
set.AddNum(message.Seq)
cmd, err := imap.Wait(c.Fetch(set, BODY_PART_NAME))
panicMaybe(err)
reader, err := messageReader(cmd.Data[0].MessageInfo())
panicMaybe(err)
scanner := bufio.NewScanner(reader)
var lines []string
for scanner.Scan() {
lines = append(lines, scanner.Text())
}
messageBodyStr := strings.Join(lines[:min(len(lines), ui.TermHeight()-2)], "\n")
if len(messageBodyStr) <= 0 {
LOG.Printf("Message body was empty or could not be retrieved: +%v\n", err)
return
}
msgBox := ui.NewPar(messageBodyStr)
msgBox.Border.Label = "Reading Message"
msgBox.Height = ui.TermHeight()
msgBox.Width = ui.TermWidth()
msgBox.Y = 0
ui.Render(msgBox)
topLineIndex := 0
redraw := make(chan bool)
for {
select {
case e := <-ui.EventCh():
switch e.Key {
case ui.KeyArrowDown:
topLineIndex = max(0, min(
len(lines)-msgBox.Height/2,
topLineIndex+1))
go func() { redraw <- true }()
case ui.KeyArrowUp:
topLineIndex = max(0, topLineIndex-1)
go func() { redraw <- true }()
case ui.KeyEsc:
// back to "list messages"
return
}
case <-redraw:
messageBodyStr = strings.Join(lines[topLineIndex+1:], "\n")
msgBox.Text = messageBodyStr
ui.Render(msgBox)
}
}
}
func main() {
err := termui.Init()
if err != nil {
panic(err)
}
defer termui.Close()
termui.UseTheme("helloworld")
sinps := (func() []float64 {
n := 220
ps := make([]float64, n)
for i := range ps {
ps[i] = 1 + math.Sin(float64(i)/5)
}
return ps
})()
lc0 := termui.NewLineChart()
lc0.Border.Label = "braille-mode Line Chart"
lc0.Data = sinps
lc0.Width = 50
lc0.Height = 12
lc0.X = 0
lc0.Y = 0
lc0.AxesColor = termui.ColorWhite
lc0.LineColor = termui.ColorGreen | termui.AttrBold
lc1 := termui.NewLineChart()
lc1.Border.Label = "dot-mode Line Chart"
lc1.Mode = "dot"
lc1.Data = sinps
lc1.Width = 26
lc1.Height = 12
lc1.X = 51
lc1.DotStyle = '+'
lc1.AxesColor = termui.ColorWhite
lc1.LineColor = termui.ColorYellow | termui.AttrBold
lc2 := termui.NewLineChart()
lc2.Border.Label = "dot-mode Line Chart"
lc2.Mode = "dot"
lc2.Data = sinps[4:]
lc2.Width = 77
lc2.Height = 16
lc2.X = 0
lc2.Y = 12
lc2.AxesColor = termui.ColorWhite
lc2.LineColor = termui.ColorCyan | termui.AttrBold
termui.Render(lc0, lc1, lc2)
<-termui.EventCh()
}
func main() {
err := ui.Init()
if err != nil {
panic(err)
}
defer ui.Close()
initial()
ech := ui.EventCh()
for screen := intro; screen != nil; {
screen = screen(ech)
}
}
func main() {
err := termui.Init()
if err != nil {
panic(err)
}
defer termui.Close()
termui.UseTheme("helloworld")
g0 := termui.NewGauge()
g0.Percent = 40
g0.Width = 50
g0.Height = 3
g0.Border.Label = "Slim Gauge"
g0.BarColor = termui.ColorRed
g0.Border.FgColor = termui.ColorWhite
g0.Border.LabelFgColor = termui.ColorCyan
g2 := termui.NewGauge()
g2.Percent = 60
g2.Width = 50
g2.Height = 3
g2.PercentColor = termui.ColorBlue
g2.Y = 3
g2.Border.Label = "Slim Gauge"
g2.BarColor = termui.ColorYellow
g2.Border.FgColor = termui.ColorWhite
g1 := termui.NewGauge()
g1.Percent = 30
g1.Width = 50
g1.Height = 5
g1.Y = 6
g1.Border.Label = "Big Gauge"
g1.PercentColor = termui.ColorYellow
g1.BarColor = termui.ColorGreen
g1.Border.FgColor = termui.ColorWhite
g1.Border.LabelFgColor = termui.ColorMagenta
g3 := termui.NewGauge()
g3.Percent = 50
g3.Width = 50
g3.Height = 3
g3.Y = 11
g3.Border.Label = "Gauge with custom label"
g3.Label = "{{percent}}% (100MBs free)"
g3.LabelAlign = termui.AlignRight
termui.Render(g0, g1, g2, g3)
<-termui.EventCh()
}
func showSubreddit(subredditName string) error {
r := geddit.NewSession("r by /u/bnadland")
submissions, err := r.SubredditSubmissions(subredditName, geddit.HotSubmissions, geddit.ListingOptions{})
if err != nil {
return err
}
isActive := true
cursor := 3
for isActive {
entries := []string{}
for i, submission := range submissions {
entries = append(entries, fmt.Sprintf("%s %s", isActiveCursor(cursor, i), submission.Title))
}
ls := termui.NewList()
ls.Items = entries
ls.ItemFgColor = termui.ColorDefault
ls.Border.Label = fmt.Sprintf("Subreddit: %s", subredditName)
ls.Height = termui.TermHeight()
ls.Width = termui.TermWidth()
ls.Y = 0
termui.Render(ls)
event := <-termui.EventCh()
if event.Type == termui.EventKey {
switch event.Key {
case termui.KeyArrowLeft:
isActive = false
case termui.KeyArrowDown:
cursor = cursor + 1
if cursor > len(submissions) {
cursor = len(submissions)
}
case termui.KeyArrowUp:
cursor = cursor - 1
if cursor < 0 {
cursor = 0
}
}
}
}
return nil
}
func main() {
err := ui.Init()
fmt.Println(daemon.UpSince())
if err != nil {
fmt.Println("Could not initialise UI")
}
defer ui.Close()
ut, _ := daemon.Uptime()
p := ui.NewPar(ut.String())
p.Height = 3
p.Width = 50
p.TextFgColor = ui.ColorWhite
p.Border.Label = "Uptime"
p.Border.FgColor = ui.ColorCyan
g0 := ui.NewGauge()
g0.Percent = 40
g0.Width = 50
g0.Height = 3
g0.Border.Label = "Memory"
g0.BarColor = ui.ColorRed
g0.Border.FgColor = ui.ColorWhite
g0.Border.LabelFgColor = ui.ColorCyan
g2 := ui.NewGauge()
g2.Percent = 60
g2.Width = 50
g2.Height = 3
g2.PercentColor = ui.ColorBlue
g2.Y = 3
g2.Border.Label = "CPU"
g2.BarColor = ui.ColorYellow
g2.Border.FgColor = ui.ColorWhite
ui.Body.AddRows(ui.NewRow(ui.NewCol(6, 0, g0), ui.NewCol(6, 0, p)),
ui.NewRow(ui.NewCol(6, 0, g2)))
ui.Body.Align()
ui.Render(ui.Body)
go updateMemCPU(g2, g0)
go updateUptime(p)
<-ui.EventCh()
}
func maintainSparkLines(redraw chan bool, quit chan bool) {
evt := ui.EventCh()
for {
select {
case e := <-evt:
if e.Type == ui.EventKey && e.Ch == 'q' {
quit <- true
return
}
if e.Type == ui.EventResize {
ui.Body.Width = ui.TermWidth()
ui.Body.Align()
go func() { redraw <- true }()
}
case <-redraw:
ui.Render(ui.Body)
}
}
}
func main() {
// show flashscreen
views.MainView().Init()
err := termui.Init()
if err != nil {
panic(err)
}
defer termui.Close()
currentView = views.MainView().SwitchToView()
go func() {
for {
currentView.Render()
time.Sleep(1 * time.Second)
}
}()
for {
e := <-termui.EventCh()
if e.Type == termui.EventKey {
if e.Key == termui.KeyEsc {
break
} else if e.Key == termui.KeyArrowLeft {
currentView = views.EventView().SwitchToView()
currentView.Render()
} else if e.Key == termui.KeyArrowRight {
currentView = views.MainView().SwitchToView()
currentView.Render()
} else if e.Key == termui.KeyArrowUp {
currentView = views.RPSView().SwitchToView()
currentView.Render()
} else {
// FIXME: quit with any key
break
}
}
}
}
func main() {
err := termui.Init()
if err != nil {
panic(err)
}
defer termui.Close()
termui.UseTheme("helloworld")
bc := termui.NewMBarChart()
math := []int{90, 85, 90, 80}
english := []int{70, 85, 75, 60}
science := []int{75, 60, 80, 85}
compsci := []int{100, 100, 100, 100}
bc.Data[0] = math
bc.Data[1] = english
bc.Data[2] = science
bc.Data[3] = compsci
studentsName := []string{"Ken", "Rob", "Dennis", "Linus"}
bc.Border.Label = "Student's Marks X-Axis=Name Y-Axis=Marks[Math,English,Science,ComputerScience] in %"
bc.Width = 100
bc.Height = 50
bc.Y = 10
bc.BarWidth = 10
bc.DataLabels = studentsName
bc.ShowScale = true //Show y_axis scale value (min and max)
bc.SetMax(400)
bc.TextColor = termui.ColorGreen //this is color for label (x-axis)
bc.BarColor[3] = termui.ColorGreen //BarColor for computerscience
bc.BarColor[1] = termui.ColorYellow //Bar Color for english
bc.NumColor[3] = termui.ColorRed // Num color for computerscience
bc.NumColor[1] = termui.ColorRed // num color for english
//Other colors are automatically populated, btw All the students seems do well in computerscience. :p
termui.Render(bc)
<-termui.EventCh()
}
func main() {
err := termui.Init()
if err != nil {
panic(err)
}
defer termui.Close()
termui.UseTheme("helloworld")
par0 := termui.NewPar("Borderless Text")
par0.Height = 1
par0.Width = 20
par0.Y = 1
par0.HasBorder = false
par1 := termui.NewPar("你好，世界。")
par1.Height = 3
par1.Width = 17
par1.X = 20
par1.Border.Label = "标签"
par2 := termui.NewPar("Simple colored text\nwith label. It [can be](RED) multilined with \\n or [break automatically](GREEN, BOLD)")
par2.RendererFactory = termui.MarkdownTextRendererFactory{}
par2.Height = 5
par2.Width = 37
par2.Y = 4
par2.Border.Label = "Multiline"
par2.Border.FgColor = termui.ColorYellow
par3 := termui.NewPar("Long text with label and it is auto trimmed.")
par3.Height = 3
par3.Width = 37
par3.Y = 9
par3.Border.Label = "Auto Trim"
termui.Render(par0, par1, par2, par3)
<-termui.EventCh()
}
func showMainWindow() {
err := ui.Init()
if err != nil {
panic(err)
}
defer ui.Close()
p := ui.NewPar(":PRESS q TO QUIT DEMO")
p.Height = 3
p.Width = 50
p.TextFgColor = ui.ColorWhite
p.Border.Label = "Text Box"
p.Border.FgColor = ui.ColorCyan
draw := func(t int) {
ui.Render(p)
}
evt := ui.EventCh()
i := 0
for {
select {
case e := <-evt:
if e.Type == ui.EventKey && e.Ch == 'q' {
return
}
default:
draw(i)
i++
if i == 102 {
return
}
time.Sleep(time.Second / 2)
}
}
}
func main() {
sysmon = gtop.NewSysmon()
go sysmon.MonCPU()
err := termui.Init()
if err != nil {
panic(err)
}
defer termui.Close()
bufferer := []termui.Bufferer{}
lcpu_c, _, err := sysmon.CPUCount()
if err == nil {
cpu_bars = []*gtop.Bar{}
bar_offset := 0
for i := 0; i < lcpu_c; i++ {
b := gtop.NewBar(35, 2, 1+bar_offset, strconv.Itoa(i+1), &bufferer)
cpu_bars = append(cpu_bars, b)
bar_offset += b.Height
}
}
go render_loop(bufferer)
go update_cpu_bars()
evt := termui.EventCh()
for {
select {
case e := <-evt:
if e.Type == termui.EventKey && e.Ch == 0 {
return
}
}
}
}
func main() {
flag.Usage = Usage
flag.Parse()
// Process ports/urls
ports, _ := ParsePorts(*urls)
if *self {
port, err := StartSelfMonitor()
if err == nil {
ports = append(ports, port)
}
}
if len(ports) == 0 {
fmt.Fprintln(os.Stderr, "no ports specified. Use -ports arg to specify ports of Go apps to monitor")
Usage()
os.Exit(1)
}
if *interval <= 0 {
fmt.Fprintln(os.Stderr, "update interval is not valid. Valid examples: 5s, 1m, 1h30m")
Usage()
os.Exit(1)
}
// Process vars
vars, err := ParseVars(*varsArg)
if err != nil {
log.Fatal(err)
}
// Init UIData
data := NewUIData(vars)
for _, port := range ports {
service := NewService(port, vars)
data.Services = append(data.Services, service)
}
// Start proper UI
var ui UI
if len(data.Services) > 1 {
ui = &TermUI{}
} else {
ui = &TermUISingle{}
}
if *dummy {
ui = &DummyUI{}
}
if err := ui.Init(*data); err != nil {
log.Fatal(err)
}
defer ui.Close()
tick := time.NewTicker(*interval)
evtCh := termui.EventCh()
UpdateAll(ui, data)
for {
select {
case <-tick.C:
UpdateAll(ui, data)
case e := <-evtCh:
if e.Type == termui.EventKey && e.Ch == 'q' {
return
}
if e.Type == termui.EventResize {
ui.Update(*data)
}
}
}
}
// monitor starts a terminal UI based monitoring tool for the requested metrics.
func monitor(ctx *cli.Context) {
var (
client comms.EthereumClient
err error
)
// Attach to an Ethereum node over IPC or RPC
endpoint := ctx.String(monitorCommandAttachFlag.Name)
if client, err = comms.ClientFromEndpoint(endpoint, codec.JSON); err != nil {
utils.Fatalf("Unable to attach to geth node: %v", err)
}
defer client.Close()
xeth := rpc.NewXeth(client)
// Retrieve all the available metrics and resolve the user pattens
metrics, err := retrieveMetrics(xeth)
if err != nil {
utils.Fatalf("Failed to retrieve system metrics: %v", err)
}
monitored := resolveMetrics(metrics, ctx.Args())
if len(monitored) == 0 {
list := expandMetrics(metrics, "")
sort.Strings(list)
if len(list) > 0 {
utils.Fatalf("No metrics specified.\n\nAvailable:\n - %s", strings.Join(list, "\n - "))
} else {
utils.Fatalf("No metrics collected by geth (--%s).\n", utils.MetricsEnabledFlag.Name)
}
}
sort.Strings(monitored)
if cols := len(monitored) / ctx.Int(monitorCommandRowsFlag.Name); cols > 6 {
utils.Fatalf("Requested metrics (%d) spans more that 6 columns:\n - %s", len(monitored), strings.Join(monitored, "\n - "))
}
// Create and configure the chart UI defaults
if err := termui.Init(); err != nil {
utils.Fatalf("Unable to initialize terminal UI: %v", err)
}
defer termui.Close()
termui.UseTheme("helloworld")
rows := len(monitored)
if max := ctx.Int(monitorCommandRowsFlag.Name); rows > max {
rows = max
}
cols := (len(monitored) + rows - 1) / rows
for i := 0; i < rows; i++ {
termui.Body.AddRows(termui.NewRow())
}
// Create each individual data chart
footer := termui.NewPar("")
footer.HasBorder = true
footer.Height = 3
charts := make([]*termui.LineChart, len(monitored))
units := make([]int, len(monitored))
data := make([][]float64, len(monitored))
for i := 0; i < len(monitored); i++ {
charts[i] = createChart((termui.TermHeight() - footer.Height) / rows)
row := termui.Body.Rows[i%rows]
row.Cols = append(row.Cols, termui.NewCol(12/cols, 0, charts[i]))
}
termui.Body.AddRows(termui.NewRow(termui.NewCol(12, 0, footer)))
refreshCharts(xeth, monitored, data, units, charts, ctx, footer)
termui.Body.Align()
termui.Render(termui.Body)
// Watch for various system events, and periodically refresh the charts
refresh := time.Tick(time.Duration(ctx.Int(monitorCommandRefreshFlag.Name)) * time.Second)
for {
select {
case event := <-termui.EventCh():
if event.Type == termui.EventKey && event.Key == termui.KeyCtrlC {
return
}
if event.Type == termui.EventResize {
termui.Body.Width = termui.TermWidth()
for _, chart := range charts {
chart.Height = (termui.TermHeight() - footer.Height) / rows
}
termui.Body.Align()
termui.Render(termui.Body)
}
case <-refresh:
if refreshCharts(xeth, monitored, data, units, charts, ctx, footer) {
termui.Body.Align()
}
termui.Render(termui.Body)
}
}
}
func main() {
err := ui.Init()
if err != nil {
panic(err)
}
defer ui.Close()
sinps := (func() []float64 {
n := 400
ps := make([]float64, n)
for i := range ps {
ps[i] = 1 + math.Sin(float64(i)/5)
}
return ps
})()
sinpsint := (func() []int {
ps := make([]int, len(sinps))
for i, v := range sinps {
ps[i] = int(100*v + 10)
}
return ps
})()
// ui.UseTheme("helloworld")
spark := ui.Sparkline{}
spark.Height = 8
spdata := sinpsint
spark.Data = spdata[:100]
spark.LineColor = ui.ColorCyan
spark.TitleColor = ui.ColorWhite
sp := ui.NewSparklines(spark)
sp.Height = 11
sp.Border.Label = "Sparkline"
lc := ui.NewLineChart()
lc.Border.Label = "braille-mode Line Chart"
lc.Data = sinps
lc.Height = 11
lc.AxesColor = ui.ColorWhite
lc.LineColor = ui.ColorYellow | ui.AttrBold
gs := make([]*ui.Gauge, 3)
for i := range gs {
gs[i] = ui.NewGauge()
gs[i].Height = 2
gs[i].HasBorder = false
gs[i].Percent = i * 10
gs[i].PaddingBottom = 1
gs[i].BarColor = ui.ColorRed
}
ls := ui.NewList()
ls.HasBorder = false
ls.Items = []string{
"[1] Downloading File 1",
"", // == \newline
"[2] Downloading File 2",
"",
"[3] Uploading File 3",
}
ls.Height = 5
par := ui.NewPar("<> This row has 3 columns\n<- Widgets can be stacked up like left side\n<- Stacked widgets are treated as a single widget")
par.Height = 5
par.Border.Label = "Demonstration"
// build layout
ui.Body.AddRows(
ui.NewRow(
ui.NewCol(6, 0, sp),
ui.NewCol(6, 0, lc)),
ui.NewRow(
ui.NewCol(3, 0, ls),
ui.NewCol(3, 0, gs[0], gs[1], gs[2]),
ui.NewCol(6, 0, par)))
// calculate layout
ui.Body.Align()
done := make(chan bool)
redraw := make(chan bool)
/*
update := func() {
for i := 0; i < 103; i++ {
for _, g := range gs {
g.Percent = (g.Percent + 3) % 100
}
sp.Lines[0].Data = spdata[:100+i]
lc.Data = sinps[2*i:]
time.Sleep(time.Second / 2)
redraw <- true
}
done <- true
}
*/
evt := ui.EventCh()
ui.Render(ui.Body)
// go update()
for {
select {
case e := <-evt:
if e.Type == ui.EventKey && e.Ch == 'q' {
return
}
if e.Type == ui.EventResize {
ui.Body.Width = ui.TermWidth()
ui.Body.Align()
go func() { redraw <- true }()
}
case <-done:
return
case <-redraw:
ui.Render(ui.Body)
}
}
}
func main() {
if runtime.GOOS != "linux" {
panic("Currently works only on Linux")
}
err := termui.Init()
if err != nil {
panic(err)
}
defer termui.Close()
termWidth := 70
termui.UseTheme("helloworld")
header := termui.NewPar("Press q to quit, Press j or k to switch tabs")
header.Height = 1
header.Width = 50
header.HasBorder = false
header.TextBgColor = termui.ColorBlue
tabCpu := extra.NewTab("CPU")
tabMem := extra.NewTab("MEM")
tabpane := extra.NewTabpane()
tabpane.Y = 1
tabpane.Width = 30
tabpane.HasBorder = false
cs, errcs := getCpusStatsMap()
cpusStats := NewCpusStats(cs)
if errcs != nil {
panic("error")
}
cpuTabElems := NewCpuTabElems(termWidth)
Y := 0
cpuKeys := make([]string, 0, len(cs))
for key := range cs {
cpuKeys = append(cpuKeys, key)
}
sort.Strings(cpuKeys)
for _, key := range cpuKeys {
g := cpuTabElems.AddGauge(key, Y, termWidth)
Y += 3
tabCpu.AddBlocks(g)
}
cpuTabElems.LChart.Y = Y
tabCpu.AddBlocks(cpuTabElems.LChart)
memTabElems := NewMemTabElems(termWidth)
ms, errm := getMemStats()
if errm != nil {
panic(errm)
}
memTabElems.Update(ms)
tabMem.AddBlocks(memTabElems.Gauge)
tabMem.AddBlocks(memTabElems.SLines)
tabpane.SetTabs(*tabCpu, *tabMem)
termui.Render(header, tabpane)
evt := termui.EventCh()
for {
select {
case e := <-evt:
if e.Type == termui.EventKey {
switch e.Ch {
case 'q':
return
case 'j':
tabpane.SetActiveLeft()
termui.Render(header, tabpane)
case 'k':
tabpane.SetActiveRight()
termui.Render(header, tabpane)
}
}
case <-time.After(time.Second):
cs, errcs := getCpusStatsMap()
if errcs != nil {
panic(errcs)
}
cpusStats.tick(cs)
cpuTabElems.Update(*cpusStats)
ms, errm := getMemStats()
if errm != nil {
panic(errm)
}
memTabElems.Update(ms)
termui.Render(header, tabpane)
}
}
}
func main() {
pfile := flag.String("f", "", "psafe3 file")
flag.Parse()
fmt.Printf("Password: "******"Last Saved: %s\nLast Saved By %s @ %s",
safe.Headers.LastSave.Format("2006-01-02 15:04:05"),
safe.Headers.User, safe.Headers.Host))
rightpar.Height = 2
rightpar.HasBorder = false
leftpar := termui.NewPar(fmt.Sprintf("File Name: %s\nLast Program: %s",
filepath.Base(*pfile),
safe.Headers.ProgramSave))
leftpar.Height = 2
leftpar.HasBorder = false
recordlist := termui.NewList()
recordlist.Height = termui.TermHeight() - 5
recordlist.Items = getRecordList(safe)
recordlist.Border.Label = fmt.Sprintf("Records (%d)", len(safe.Records))
recorddetail := termui.NewPar("")
recorddetail.Height = recordlist.Height
recorddetail.Border.Label = "Record Information"
inputbox := termui.NewPar("")
inputbox.Height = 3
inputbox.Border.Label = "Input Box ([Enter] to save, [Esc] to cancel)"
inputrow := termui.NewRow(termui.NewCol(12, 0, inputbox))
commandinfo := termui.NewPar(strings.Join([]string{
"Select record by typing the index number. Edit field by typing field marker.",
}, "\n"))
commandinfo.Height = 3
commandinfo.Border.Label = "Help"
commandrow := termui.NewRow(termui.NewCol(12, 0, commandinfo))
termui.Body.AddRows(
termui.NewRow(
termui.NewCol(6, 0, leftpar),
termui.NewCol(6, 0, rightpar),
),
termui.NewRow(
termui.NewCol(6, 0, recordlist),
termui.NewCol(6, 0, recorddetail),
),
commandrow,
)
termui.Body.Align()
termui.Render(termui.Body)
evt := termui.EventCh()
inputMode := false
valBuffer := bytes.Buffer{}
numBuffer := bytes.Buffer{}
var selRecord *pwsafe.Record
var selField *string
var inputPrompt string
var startIndex int
Main:
for {
select {
case e := <-evt:
if !inputMode && e.Type == termui.EventKey {
switch e.Ch {
case 'q':
break Main
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
numBuffer.WriteRune(e.Ch)
case '#':
selIndex, _ := strconv.ParseInt(numBuffer.String(), 10, 64)
selRecord = &safe.Records[selIndex]
selField = nil
numBuffer.Reset()
case 'j':
startIndex++
rlist := getRecordList(safe)
recordlist.Items = rlist[startIndex:]
case 'k':
if startIndex > 1 {
startIndex--
rlist := getRecordList(safe)
recordlist.Items = rlist[startIndex:]
}
case 'a':
selIndex := len(safe.Records)
safe.Records = append(safe.Records, pwsafe.Record{})
selRecord = &safe.Records[selIndex]
selRecord.UUID = uuid.NewV1()
selRecord.CreationTime = time.Now()
selField = nil
rlist := getRecordList(safe)
recordlist.Items = rlist[startIndex:]
recordlist.Border.Label = fmt.Sprintf("Records (%d)", len(safe.Records))
case 'g':
selField = &selRecord.Group
inputPrompt = "Group: "
inputMode = true
valBuffer.WriteString(selRecord.Group)
inputbox.Text = inputPrompt + valBuffer.String()
case 't':
selField = &selRecord.Title
inputPrompt = "Title: "
inputMode = true
valBuffer.WriteString(selRecord.Title)
inputbox.Text = inputPrompt + valBuffer.String()
case 'u':
selField = &selRecord.Username
inputPrompt = "Username: "******"Password: "******"Url: "
inputMode = true
valBuffer.WriteString(selRecord.Url)
inputbox.Text = inputPrompt + valBuffer.String()
case 'n':
selField = &selRecord.Notes
inputPrompt = "Notes: "
inputMode = true
valBuffer.WriteString(selRecord.Notes)
inputbox.Text = inputPrompt + valBuffer.String()
case 'e':
selField = &selRecord.Email
inputPrompt = "Email: "
inputMode = true
valBuffer.WriteString(selRecord.Email)
inputbox.Text = inputPrompt + valBuffer.String()
}
} else if inputMode && e.Type == termui.EventKey {
if e.Key == termui.KeyEnter {
if selField != nil {
*selField = valBuffer.String()
}
valBuffer.Reset()
inputMode = false
inputbox.Text = ""
rlist := getRecordList(safe)
recordlist.Items = rlist[startIndex:]
} else if e.Key == termui.KeyEsc {
valBuffer.Reset()
inputMode = false
inputbox.Text = ""
} else if e.Key == termui.KeySpace {
valBuffer.WriteRune(' ')
} else if e.Key == termui.KeyBackspace || e.Ch == '' {
s := valBuffer.String()
valBuffer = bytes.Buffer{}
if len(s) > 0 {
s = s[0 : len(s)-1]
}
valBuffer.WriteString(s)
inputbox.Text = inputPrompt + valBuffer.String()
} else {
valBuffer.WriteRune(e.Ch)
inputbox.Text = inputPrompt + valBuffer.String()
}
}
if e.Type == termui.EventResize {
termui.Body.Width = termui.TermWidth()
termui.Body.Align()
}
if selRecord != nil {
recorddetail.Text = getRecordDetail(*selRecord)
}
if inputMode {
termui.Body.Rows[2] = inputrow
} else {
termui.Body.Rows[2] = commandrow
}
termui.Body.Align()
termui.Render(termui.Body)
}
}
oerr := pwsafe.OutputFile(*pfile, string(pw), *safe)
if oerr != nil {
log.Fatalln(oerr)
}
}
func main() {
err := ui.Init()
if err != nil {
panic(err)
}
defer ui.Close()
ui.UseTheme("helloworld")
p := ui.NewPar(":PRESS q TO QUIT DEMO")
p.Height = 3
p.Width = 50
p.Border.Label = "Text Box"
strs := []string{"[0] gizak/termui", "[1] editbox.go", "[2] iterrupt.go", "[3] keyboard.go", "[4] output.go", "[5] random_out.go", "[6] dashboard.go", "[7] nsf/termbox-go"}
list := ui.NewList()
list.Items = strs
list.Border.Label = "List"
list.Height = 7
list.Width = 25
list.Y = 4
g := ui.NewGauge()
g.Percent = 50
g.Width = 50
g.Height = 3
g.Y = 11
g.Border.Label = "Gauge"
spark := ui.NewSparkline()
spark.Title = "srv 0:"
spdata := []int{4, 2, 1, 6, 3, 9, 1, 4, 2, 15, 14, 9, 8, 6, 10, 13, 15, 12, 10, 5, 3, 6, 1, 7, 10, 10, 14, 13, 6}
spark.Data = spdata
spark1 := ui.NewSparkline()
spark1.Title = "srv 1:"
spark1.Data = spdata
sp := ui.NewSparklines(spark, spark1)
sp.Width = 25
sp.Height = 7
sp.Border.Label = "Sparkline"
sp.Y = 4
sp.X = 25
lc := ui.NewLineChart()
sinps := (func() []float64 {
n := 100
ps := make([]float64, n)
for i := range ps {
ps[i] = 1 + math.Sin(float64(i)/4)
}
return ps
})()
lc.Border.Label = "Line Chart"
lc.Data = sinps
lc.Width = 50
lc.Height = 11
lc.X = 0
lc.Y = 14
lc.Mode = "dot"
bc := ui.NewBarChart()
bcdata := []int{3, 2, 5, 3, 9, 5, 3, 2, 5, 8, 3, 2, 4, 5, 3, 2, 5, 7, 5, 3, 2, 6, 7, 4, 6, 3, 6, 7, 8, 3, 6, 4, 5, 3, 2, 4, 6, 4, 8, 5, 9, 4, 3, 6, 5, 3, 6}
bclabels := []string{"S0", "S1", "S2", "S3", "S4", "S5"}
bc.Border.Label = "Bar Chart"
bc.Width = 26
bc.Height = 10
bc.X = 51
bc.Y = 0
bc.DataLabels = bclabels
lc1 := ui.NewLineChart()
lc1.Border.Label = "Line Chart"
rndwalk := (func() []float64 {
n := 150
d := make([]float64, n)
for i := 1; i < n; i++ {
if i < 20 {
d[i] = d[i-1] + 0.01
}
if i > 20 {
d[i] = d[i-1] - 0.05
}
}
return d
})()
lc1.Data = rndwalk
lc1.Width = 26
lc1.Height = 11
lc1.X = 51
lc1.Y = 14
p1 := ui.NewPar("Hey!\nI am a borderless block!")
p1.HasBorder = false
p1.Width = 26
p1.Height = 2
p1.X = 52
p1.Y = 11
draw := func(t int) {
g.Percent = t % 101
list.Items = strs[t%9:]
sp.Lines[0].Data = spdata[t%10:]
sp.Lines[1].Data = spdata[t/2%10:]
lc.Data = sinps[t/2:]
lc1.Data = rndwalk[t:]
bc.Data = bcdata[t/2%10:]
ui.Render(p, list, g, sp, lc, bc, lc1, p1)
}
evt := ui.EventCh()
i := 0
for {
select {
case e := <-evt:
if e.Type == ui.EventKey && e.Ch == 'q' {
return
}
default:
draw(i)
i++
if i == 102 {
return
}
time.Sleep(time.Second / 2)
}
}
}
func selectConnection(conf *types.Configuration, input string) *types.Connection {
if err := ui.Init(); err != nil {
panic(err)
}
defer func() {
ui.Close()
if e := recover(); e != nil {
panic(e)
}
}()
treeView := NewSelectList()
treeView.Border.Label = " Connections "
debugView := ui.NewPar("")
searchView := ui.NewPar(input)
searchView.Border.Label = " Search "
connectButton := ui.NewPar(" Connect ")
menuView := ui.NewRow(
ui.NewCol(8, 0, connectButton),
)
selectedButton := 0
buttons := []*ui.Par{connectButton}
selectButtons := func() {
selectedButton %= len(buttons)
for i, v := range buttons {
if i == selectedButton {
v.TextBgColor = ui.ColorBlue
} else {
v.TextBgColor = ui.ColorDefault
}
}
}
selectButtons()
ui.Body.AddRows(
ui.NewRow(
ui.NewCol(12, 0, treeView)),
ui.NewRow(
ui.NewCol(12, 0, debugView)),
ui.NewRow(
ui.NewCol(6, 0, searchView),
ui.NewCol(6, 0, menuView)))
heights := func() {
searchView.Height = 3
connectButton.Height = searchView.Height
menuView.Height = searchView.Height
debugView.Height = 5
treeView.Height = ui.TermHeight() - searchView.Height - debugView.Height
}
heights()
ui.Body.Align()
connectionsIndex := make(map[int]types.Node)
pathToIndexMap := make(map[string]int)
var distances map[string]int
var filteredRoot *types.Container
doRefilter := func() {
pathToIndexMap := make(map[string]int)
distances, _ = filter(conf, input)
filteredRoot = filterTree(conf, distances)
drawTree(treeView, connectionsIndex, distances, pathToIndexMap, filteredRoot)
/*if bestMatchPath != "" {
if index, ok := pathToIndexMap[bestMatchPath]; ok {
treeView.CurrentSelection = index
}
}*/
}
doRefilter()
events := make(chan ui.Event)
go func(in <-chan ui.Event, out chan<- ui.Event) {
for e := range in {
out <- e
}
close(out)
}(ui.EventCh(), events)
for {
ui.Render(ui.Body)
ev := <-events
if ev.Err != nil {
debugView.Text = ev.Err.Error()
}
refilter := false
switch ev.Type {
case ui.EventResize:
heights()
ui.Body.Width = ev.Width
ui.Body.Align()
treeView.Debug += " resize"
case ui.EventKey:
if ev.Key <= ui.KeyHome && ev.Key >= ui.KeyArrowRight {
switch ev.Key {
case ui.KeyHome:
treeView.CurrentSelection = 0
case ui.KeyEnd:
treeView.CurrentSelection = len(treeView.Items) - 1
case ui.KeyPgup:
treeView.CurrentSelection -= treeView.Height - 3
case ui.KeyPgdn:
treeView.CurrentSelection += treeView.Height + 3
case ui.KeyArrowDown:
treeView.CurrentSelection++
case ui.KeyArrowUp:
treeView.CurrentSelection--
case ui.KeyArrowLeft:
selectedButton--
selectButtons()
case ui.KeyArrowRight:
selectedButton++
selectButtons()
}
if treeView.CurrentSelection > len(treeView.Items)-1 {
treeView.CurrentSelection = len(treeView.Items) - 1
} else if treeView.CurrentSelection < 0 {
treeView.CurrentSelection = 0
}
} else if ev.Key == ui.KeyEnter {
n := connectionsIndex[treeView.CurrentSelection]
if c, ok := n.(*types.Connection); ok {
if buttons[selectedButton] == connectButton {
return c
}
} else if c, ok := n.(*types.Container); ok {
if c.Expanded {
c.Expanded = false
} else {
c.Expanded = true
}
drawTree(treeView, connectionsIndex, distances, pathToIndexMap, filteredRoot)
}
} else if ev.Key == ui.KeyEsc || ev.Key == ui.KeyCtrlC {
return nil
} else if ev.Ch >= ' ' && ev.Ch <= '~' {
input += string(ev.Ch)
searchView.Text = input
refilter = true
} else if ev.Key == ui.KeyBackspace || ev.Key == ui.KeyBackspace2 {
if len(input) > 0 {
input = input[:len(input)-1]
searchView.Text = input
refilter = true
}
}
}
if refilter {
doRefilter()
}
if ev.Err == nil {
if DEBUG {
debugView.Text = fmt.Sprint(distances)
debugView.Text += fmt.Sprintf(
" ev: %d key: %x input: %s|\ncur: %d scroll: %d scrolledCur: %d len: %d\ninner: %d align: %s",
ev.Type, ev.Key, input, treeView.CurrentSelection, treeView.scroll,
treeView.scrolledSelection, len(treeView.Items), treeView.InnerHeight(), treeView.Debug)
treeView.Debug = ""
} else {
n := connectionsIndex[treeView.CurrentSelection]
if c, ok := n.(*types.Connection); ok {
debugView.Text = fmt.Sprintf("%s %s:%d\n%s",
c.Info.Protocol, c.Info.Host, c.Info.Port, c.Info.Description)
} else if _, ok := n.(*types.Container); ok {
debugView.Text = ""
}
}
}
}
}
func main() {
err := termui.Init()
if err != nil {
panic(err)
}
defer termui.Close()
termui.UseTheme("helloworld")
header := termui.NewPar("Press q to quit, Press j or k to switch tabs")
header.Height = 1
header.Width = 50
header.HasBorder = false
header.TextBgColor = termui.ColorBlue
tab1 := extra.NewTab("pierwszy")
par2 := termui.NewPar("Press q to quit\nPress j or k to switch tabs\n")
par2.Height = 5
par2.Width = 37
par2.Y = 0
par2.Border.Label = "Keys"
par2.Border.FgColor = termui.ColorYellow
tab1.AddBlocks(par2)
tab2 := extra.NewTab("drugi")
bc := termui.NewBarChart()
data := []int{3, 2, 5, 3, 9, 5, 3, 2, 5, 8, 3, 2, 4, 5, 3, 2, 5, 7, 5, 3, 2, 6, 7, 4, 6, 3, 6, 7, 8, 3, 6, 4, 5, 3, 2, 4, 6, 4, 8, 5, 9, 4, 3, 6, 5, 3, 6}
bclabels := []string{"S0", "S1", "S2", "S3", "S4", "S5"}
bc.Border.Label = "Bar Chart"
bc.Data = data
bc.Width = 26
bc.Height = 10
bc.DataLabels = bclabels
bc.TextColor = termui.ColorGreen
bc.BarColor = termui.ColorRed
bc.NumColor = termui.ColorYellow
tab2.AddBlocks(bc)
tab3 := extra.NewTab("trzeci")
tab4 := extra.NewTab("żółw")
tab5 := extra.NewTab("four")
tab6 := extra.NewTab("five")
tabpane := extra.NewTabpane()
tabpane.Y = 1
tabpane.Width = 30
tabpane.HasBorder = true
tabpane.SetTabs(*tab1, *tab2, *tab3, *tab4, *tab5, *tab6)
evt := termui.EventCh()
termui.Render(header, tabpane)
for {
select {
case e := <-evt:
if e.Type == termui.EventKey {
switch e.Ch {
case 'q':
return
case 'j':
tabpane.SetActiveLeft()
termui.Render(header, tabpane)
case 'k':
tabpane.SetActiveRight()
termui.Render(header, tabpane)
}
}
}
}
}
func main() {
err := ui.Init()
if err != nil {
panic(err)
}
defer ui.Close()
p := ui.NewPar(":PRESS q TO QUIT DEMO")
p.Height = 3
p.Width = 50
p.TextFgColor = ui.ColorWhite
p.Border.Label = "Text Box"
p.Border.FgColor = ui.ColorCyan
strs := []string{"[0] gizak/termui", "[1] editbox.go", "[2] iterrupt.go", "[3] keyboard.go", "[4] output.go", "[5] random_out.go", "[6] dashboard.go", "[7] nsf/termbox-go"}
list := ui.NewList()
list.Items = strs
list.ItemFgColor = ui.ColorYellow
list.Border.Label = "List"
list.Height = 7
list.Width = 25
list.Y = 4
g := ui.NewGauge()
g.Percent = 50
g.Width = 50
g.Height = 3
g.Y = 11
g.Border.Label = "Gauge"
g.BarColor = ui.ColorRed
g.Border.FgColor = ui.ColorWhite
g.Border.LabelFgColor = ui.ColorCyan
spark := ui.Sparkline{}
spark.Height = 1
spark.Title = "srv 0:"
spdata := []int{4, 2, 1, 6, 3, 9, 1, 4, 2, 15, 14, 9, 8, 6, 10, 13, 15, 12, 10, 5, 3, 6, 1, 7, 10, 10, 14, 13, 6}
spark.Data = spdata
spark.LineColor = ui.ColorCyan
spark.TitleColor = ui.ColorWhite
spark1 := ui.Sparkline{}
spark1.Height = 1
spark1.Title = "srv 1:"
spark1.Data = spdata
spark1.TitleColor = ui.ColorWhite
spark1.LineColor = ui.ColorRed
sp := ui.NewSparklines(spark, spark1)
sp.Width = 25
sp.Height = 7
sp.Border.Label = "Sparkline"
sp.Y = 4
sp.X = 25
sinps := (func() []float64 {
n := 220
ps := make([]float64, n)
for i := range ps {
ps[i] = 1 + math.Sin(float64(i)/5)
}
return ps
})()
lc := ui.NewLineChart()
lc.Border.Label = "dot-mode Line Chart"
lc.Data = sinps
lc.Width = 50
lc.Height = 11
lc.X = 0
lc.Y = 14
lc.AxesColor = ui.ColorWhite
lc.LineColor = ui.ColorRed | ui.AttrBold
lc.Mode = "dot"
bc := ui.NewBarChart()
bcdata := []int{3, 2, 5, 3, 9, 5, 3, 2, 5, 8, 3, 2, 4, 5, 3, 2, 5, 7, 5, 3, 2, 6, 7, 4, 6, 3, 6, 7, 8, 3, 6, 4, 5, 3, 2, 4, 6, 4, 8, 5, 9, 4, 3, 6, 5, 3, 6}
bclabels := []string{"S0", "S1", "S2", "S3", "S4", "S5"}
bc.Border.Label = "Bar Chart"
bc.Width = 26
bc.Height = 10
bc.X = 51
bc.Y = 0
bc.DataLabels = bclabels
bc.BarColor = ui.ColorGreen
bc.NumColor = ui.ColorBlack
lc1 := ui.NewLineChart()
lc1.Border.Label = "braille-mode Line Chart"
lc1.Data = sinps
lc1.Width = 26
lc1.Height = 11
lc1.X = 51
lc1.Y = 14
lc1.AxesColor = ui.ColorWhite
lc1.LineColor = ui.ColorYellow | ui.AttrBold
p1 := ui.NewPar("Hey!\nI am a borderless block!")
p1.HasBorder = false
p1.Width = 26
p1.Height = 2
p1.TextFgColor = ui.ColorMagenta
p1.X = 52
p1.Y = 11
draw := func(t int) {
g.Percent = t % 101
list.Items = strs[t%9:]
sp.Lines[0].Data = spdata[t%10:]
sp.Lines[1].Data = spdata[t/2%10:]
lc.Data = sinps[t/2:]
lc1.Data = sinps[2*t:]
bc.Data = bcdata[t/2%10:]
ui.Render(p, list, g, sp, lc, bc, lc1, p1)
}
evt := ui.EventCh()
i := 0
for {
select {
case e := <-evt:
if e.Type == ui.EventKey && e.Ch == 'q' {
return
}
default:
draw(i)
i++
if i == 102 {
return
}
time.Sleep(time.Second / 2)
}
}
}
func (env *Env) Stats(cmd *cobra.Command, args []string) {
err := ui.Init()
if err != nil {
panic(err)
}
defer ui.Close()
ui.UseTheme("helloworld")
s := ui.NewPar(env.db.Scrobbles())
s.Border.Label = "LocalFM"
s.Height = 3
recTracks, err := env.db.RecentTracks()
if err != nil {
log.Fatalf("Error in RecentTracks:", err)
}
rec := ui.NewPar(recTracks)
rec.Border.Label = "Recent Tracks"
rec.Height = (viper.GetInt("main.recent_tracks") + 2)
topArtists, err := env.db.TopArtists()
if err != nil {
log.Fatalf("Error in TopArtists:", err)
}
topart := ui.NewPar(topArtists)
topart.Border.Label = "Top Artists"
topart.Height = (viper.GetInt("main.top_artists") + 2)
topAlbums, err := env.db.TopAlbums()
if err != nil {
log.Fatalf("Error in TopAlbums:", err)
}
topalbs := ui.NewPar(topAlbums)
topalbs.Border.Label = "Top Albums"
topalbs.Height = (viper.GetInt("main.top_albums") + 2)
topSongs, err := env.db.TopSongs()
if err != nil {
log.Fatalf("Error in TopSongs:", err)
}
topsongs := ui.NewPar(topSongs)
topsongs.Border.Label = "Top Songs"
topsongs.Height = (viper.GetInt("main.top_songs") + 2)
ui.Body.AddRows(
ui.NewRow(
ui.NewCol(12, 0, s)),
ui.NewRow(
ui.NewCol(12, 0, rec)),
ui.NewRow(
ui.NewCol(6, 0, topart),
ui.NewCol(6, 0, topalbs)),
ui.NewRow(
ui.NewCol(12, 0, topsongs)))
ui.Body.Align()
done := make(chan bool)
redraw := make(chan bool)
update := func() {
time.Sleep(time.Second / 2)
redraw <- true
}
evt := ui.EventCh()
ui.Render(ui.Body)
go update()
for {
select {
case e := <-evt:
if e.Type == ui.EventKey && e.Ch == 'q' {
return
}
if e.Type == ui.EventResize {
ui.Body.Width = ui.TermWidth()
ui.Body.Align()
go func() { redraw <- true }()
}
case <-done:
return
case <-redraw:
ui.Render(ui.Body)
}
}
}
func (gv *graphicalVisualizer) PrintDistributionChart(rate time.Duration) error {
//Initialize termui
err := termui.Init()
if err != nil {
return errors.New("Unable to initalize terminal graphics mode.")
//panic(err)
}
defer termui.Close()
if rate <= time.Duration(0) {
rate = graphicalRateDelta
}
termui.UseTheme("helloworld")
//Initalize some widgets
p := termui.NewPar("Lattice Visualization")
if p == nil {
return errors.New("Error Initializing termui objects NewPar")
}
p.Height = 1
p.Width = 25
p.TextFgColor = termui.ColorWhite
p.HasBorder = false
r := termui.NewPar(fmt.Sprintf("rate:%v", rate))
if r == nil {
return errors.New("Error Initializing termui objects NewPar")
}
r.Height = 1
r.Width = 10
r.TextFgColor = termui.ColorWhite
r.HasBorder = false
s := termui.NewPar("hit [+=inc; -=dec; q=quit]")
if s == nil {
return errors.New("Error Initializing termui objects NewPar")
}
s.Height = 1
s.Width = 30
s.TextFgColor = termui.ColorWhite
s.HasBorder = false
bg := termui.NewMBarChart()
if bg == nil {
return errors.New("Error Initializing termui objects NewMBarChart")
}
bg.IsDisplay = false
bg.Data[0] = []int{0}
bg.DataLabels = []string{"Missing"}
bg.Width = termui.TermWidth() - 10
bg.Height = termui.TermHeight() - 5
bg.BarColor[0] = termui.ColorGreen
bg.BarColor[1] = termui.ColorYellow
bg.NumColor[0] = termui.ColorRed
bg.NumColor[1] = termui.ColorRed
bg.TextColor = termui.ColorWhite
bg.Border.LabelFgColor = termui.ColorWhite
bg.Border.Label = "[X-Axis: Cells; Y-Axis: Instances]"
bg.BarWidth = 10
bg.BarGap = 1
bg.ShowScale = true
//12 column grid system
termui.Body.AddRows(termui.NewRow(termui.NewCol(12, 5, p)))
termui.Body.AddRows(termui.NewRow(termui.NewCol(12, 0, bg)))
termui.Body.AddRows(termui.NewRow(termui.NewCol(6, 0, s), termui.NewCol(6, 5, r)))
termui.Body.Align()
termui.Render(termui.Body)
bg.IsDisplay = true
clock := clock.NewClock()
evt := termui.EventCh()
for {
select {
case e := <-evt:
if e.Type == termui.EventKey {
switch {
case (e.Ch == 'q' || e.Ch == 'Q'):
return nil
case (e.Ch == '+' || e.Ch == '='):
rate += graphicalRateDelta
case (e.Ch == '_' || e.Ch == '-'):
rate -= graphicalRateDelta
if rate <= time.Duration(0) {
rate = graphicalRateDelta
}
}
r.Text = fmt.Sprintf("rate:%v", rate)
termui.Render(termui.Body)
}
if e.Type == termui.EventResize {
termui.Body.Width = termui.TermWidth()
termui.Body.Align()
termui.Render(termui.Body)
}
case <-clock.NewTimer(rate).C():
err := gv.getProgressBars(bg)
if err != nil {
return err
}
termui.Render(termui.Body)
}
}
return nil
}
func Run(cliConnection plugin.CliConnection, args []string) {
if len(args) == 0 {
helper.CallCommandHelp("statistics", "Incorrect usage.\n")
os.Exit(1)
}
var debugOutput, fullOutput bool
for _, arg := range args[1:] {
switch arg {
case "--debug":
debugOutput = true
case "--full":
fullOutput = true
}
}
appName := args[0]
appGuid := getAppGuid(cliConnection, appName)
statsChan := make(chan Statistics)
errChan := make(chan error)
defer close(statsChan)
defer close(errChan)
go pollStats(cliConnection, appGuid, statsChan, errChan)
// setup ui
if !debugOutput {
if err := newTerminalUI(appName); err != nil {
fmt.Println("\nERROR:", err)
os.Exit(1)
}
defer term.Close()
}
// main loop
var nofInstances int
for {
select {
// ui events
case e := <-ui.EventCh():
if e.Type == ui.EventKey {
if e.Ch == 'q' || e.Key == ui.KeyCtrlC {
term.Close()
os.Exit(0)
} else if e.Key == ui.KeyPgup {
// ui shows max 8 instances
if nofInstances < 8 {
scaleApp(cliConnection, appName, nofInstances+1)
}
} else if e.Key == ui.KeyPgdn {
if nofInstances > 1 {
scaleApp(cliConnection, appName, nofInstances-1)
}
}
}
if e.Type == ui.EventResize {
term.Resize()
}
if e.Type == ui.EventError {
term.Close()
fmt.Println("\nERROR:", e.Err)
os.Exit(0)
}
case stats := <-statsChan:
nofInstances = len(stats.Instances)
// print to stdout if --debug is set
if debugOutput {
for _, idx := range stats.Instances {
var data interface{}
// print only usage metrics if --full is not set
data = stats.Data[idx].Stats.Usage
if fullOutput {
data = stats.Data[idx]
}
output, err := json.Marshal(data)
if err != nil {
fmt.Println("\nERROR:", err)
os.Exit(1)
}
fmt.Printf("{\"instance_index\":\"%s\",\"metrics\":%v}\n", idx, string(output))
}
} else {
// render terminal dashboard
term.UpdateStatistics(stats)
}
case err := <-errChan:
if !debugOutput {
term.Close()
}
fmt.Println("\nERROR:", err)
os.Exit(1)
case <-time.After(time.Second * 15):
if !debugOutput {
term.Close()
}
fmt.Println("\nTIMEOUT")
fmt.Println("Querying metrics took too long.. Check your connectivity!")
os.Exit(1)
}
}
}
// StartUI periodically refreshes the screen using recent data
func StartUI(
opts map[string]interface{},
statsCh chan *Stats,
shutdownCh chan struct{},
) {
cleanStats := &Stats{
Varz: &gnatsd.Varz{},
Connz: &gnatsd.Connz{},
Rates: &Rates{},
}
// Show empty values on first display
text := generateParagraph(opts, cleanStats)
par := ui.NewPar(text)
par.Height = ui.TermHeight()
par.Width = ui.TermWidth()
par.HasBorder = false
helpText := generateHelp()
helpPar := ui.NewPar(helpText)
helpPar.Height = ui.TermHeight()
helpPar.Width = ui.TermWidth()
helpPar.HasBorder = false
// Top like view
paraRow := ui.NewRow(ui.NewCol(ui.TermWidth(), 0, par))
// Help view
helpParaRow := ui.NewRow(ui.NewCol(ui.TermWidth(), 0, helpPar))
// Create grids that we'll be using to toggle what to render
topViewGrid := ui.NewGrid(paraRow)
helpViewGrid := ui.NewGrid(helpParaRow)
// Start with the topviewGrid by default
ui.Body.Rows = topViewGrid.Rows
ui.Body.Align()
// Used to toggle back to previous mode
viewMode := TopViewMode
// Used for pinging the IU to refresh the screen with new values
redraw := make(chan struct{})
update := func() {
for {
stats := <-statsCh
// Update top view text
text = generateParagraph(opts, stats)
par.Text = text
redraw <- struct{}{}
}
}
// Flags for capturing options
waitingSortOption := false
waitingLimitOption := false
displaySubscriptions := false
optionBuf := ""
refreshOptionHeader := func() {
// Need to mask what was typed before
clrline := "\033[1;1H\033[6;1H "
clrline += " "
for i := 0; i < len(optionBuf); i++ {
clrline += " "
}
fmt.Printf(clrline)
}
evt := ui.EventCh()
ui.Render(ui.Body)
go update()
for {
select {
case e := <-evt:
if waitingSortOption {
if e.Type == ui.EventKey && e.Key == ui.KeyEnter {
sortOpt := gnatsd.SortOpt(optionBuf)
switch sortOpt {
case SortByCid, SortBySubs, SortByPending, SortByOutMsgs, SortByInMsgs, SortByOutBytes, SortByInBytes:
opts["sort"] = sortOpt
default:
go func() {
// Has to be at least of the same length as sort by header
emptyPadding := " "
fmt.Printf("\033[1;1H\033[6;1Hinvalid order: %s%s", optionBuf, emptyPadding)
waitingSortOption = false
time.Sleep(1 * time.Second)
refreshOptionHeader()
optionBuf = ""
}()
continue
}
refreshOptionHeader()
waitingSortOption = false
optionBuf = ""
continue
}
// Handle backspace
if e.Type == ui.EventKey && len(optionBuf) > 0 && (e.Key == ui.KeyBackspace || e.Key == ui.KeyBackspace2) {
optionBuf = optionBuf[:len(optionBuf)-1]
refreshOptionHeader()
} else {
optionBuf += string(e.Ch)
}
fmt.Printf("\033[1;1H\033[6;1Hsort by [%s]: %s", opts["sort"], optionBuf)
}
if waitingLimitOption {
if e.Type == ui.EventKey && e.Key == ui.KeyEnter {
var n int
_, err := fmt.Sscanf(optionBuf, "%d", &n)
if err == nil {
opts["conns"] = n
}
waitingLimitOption = false
optionBuf = ""
refreshOptionHeader()
continue
}
// Handle backspace
if e.Type == ui.EventKey && len(optionBuf) > 0 && (e.Key == ui.KeyBackspace || e.Key == ui.KeyBackspace2) {
optionBuf = optionBuf[:len(optionBuf)-1]
refreshOptionHeader()
} else {
optionBuf += string(e.Ch)
}
fmt.Printf("\033[1;1H\033[6;1Hlimit [%d]: %s", opts["conns"], optionBuf)
}
if e.Type == ui.EventKey && (e.Ch == 'q' || e.Key == ui.KeyCtrlC) {
close(shutdownCh)
cleanExit()
}
if e.Type == ui.EventKey && e.Ch == 's' && !(waitingLimitOption || waitingSortOption) {
if displaySubscriptions {
displaySubscriptions = false
opts["subs"] = false
} else {
displaySubscriptions = true
opts["subs"] = true
}
}
if e.Type == ui.EventKey && viewMode == HelpViewMode {
ui.Body.Rows = topViewGrid.Rows
viewMode = TopViewMode
continue
}
if e.Type == ui.EventKey && e.Ch == 'o' && !waitingLimitOption && viewMode == TopViewMode {
fmt.Printf("\033[1;1H\033[6;1Hsort by [%s]:", opts["sort"])
waitingSortOption = true
}
if e.Type == ui.EventKey && e.Ch == 'n' && !waitingSortOption && viewMode == TopViewMode {
fmt.Printf("\033[1;1H\033[6;1Hlimit [%d]:", opts["conns"])
waitingLimitOption = true
}
if e.Type == ui.EventKey && (e.Ch == '?' || e.Ch == 'h') && !(waitingSortOption || waitingLimitOption) {
if viewMode == TopViewMode {
refreshOptionHeader()
optionBuf = ""
}
ui.Body.Rows = helpViewGrid.Rows
viewMode = HelpViewMode
waitingLimitOption = false
waitingSortOption = false
}
if e.Type == ui.EventResize {
ui.Body.Width = ui.TermWidth()
ui.Body.Align()
go func() { redraw <- struct{}{} }()
}
case <-redraw:
ui.Render(ui.Body)
}
}
}
