Minor refactor

2018-09-06 14:48:09 -07:00
parent 7d98eb0bf4
commit 3629cdceea
28 changed files with 357 additions and 396 deletions
--- a/_examples/barchart.go
+++ b/_examples/barchart.go
@@ -6,31 +6,27 @@

 package main

-import "github.com/gizak/termui"
+import ui "github.com/gizak/termui"

 func main() {
-	if err := termui.Init(); err != nil {
-		panic(err)
-	}
-	defer termui.Close()
+	ui.Init()
+	defer ui.Close()

-	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 := ui.NewBarChart()
+	bc.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}
+	bc.DataLabels = []string{"S0", "S1", "S2", "S3", "S4", "S5"}
 	bc.BorderLabel = "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
+	bc.TextColor = ui.ColorGreen
+	bc.BarColor = ui.ColorRed
+	bc.NumColor = ui.ColorYellow

-	termui.Render(bc)
+	ui.Render(bc)

-	termui.Handle("/sys/kbd/q", func(termui.Event) {
-		termui.StopLoop()
+	ui.Handle("/sys/kbd/q", func(ui.Event) {
+		ui.StopLoop()
 	})
-	termui.Loop()

+	ui.Loop()
 }
--- a/_examples/dashboard.go
+++ b/_examples/dashboard.go
@@ -13,9 +13,7 @@ import (
 )

 func main() {
-	if err := ui.Init(); err != nil {
-		panic(err)
-	}
+	ui.Init()
 	defer ui.Close()

 	p := ui.NewPar(":PRESS q TO QUIT DEMO")
@@ -33,14 +31,15 @@ func main() {
 		}
 	})

-	strs := []string{"[0] gizak/termui", "[1] editbox.go", "[2] interrupt.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.BorderLabel = "List"
-	list.Height = 7
-	list.Width = 25
-	list.Y = 4
+	listData := []string{"[0] gizak/termui", "[1] editbox.go", "[2] interrupt.go", "[3] keyboard.go", "[4] output.go", "[5] random_out.go", "[6] dashboard.go", "[7] nsf/termbox-go"}
+
+	l := ui.NewList()
+	l.Items = listData
+	l.ItemFgColor = ui.ColorYellow
+	l.BorderLabel = "List"
+	l.Height = 7
+	l.Width = 25
+	l.Y = 4

 	g := ui.NewGauge()
 	g.Percent = 50
@@ -52,29 +51,30 @@ func main() {
 	g.BorderFg = ui.ColorWhite
 	g.BorderLabelFg = 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, 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, 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, 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
+	sparklineData := []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, 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, 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, 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}

-	spark1 := ui.Sparkline{}
-	spark1.Height = 1
-	spark1.Title = "srv 1:"
-	spark1.Data = spdata
-	spark1.TitleColor = ui.ColorWhite
-	spark1.LineColor = ui.ColorRed
+	sl := ui.Sparkline{}
+	sl.Height = 1
+	sl.Title = "srv 0:"
+	sl.Data = sparklineData
+	sl.LineColor = ui.ColorCyan
+	sl.TitleColor = ui.ColorWhite

-	sp := ui.NewSparklines(spark, spark1)
-	sp.Width = 25
-	sp.Height = 7
-	sp.BorderLabel = "Sparkline"
-	sp.Y = 4
-	sp.X = 25
+	sl2 := ui.Sparkline{}
+	sl2.Height = 1
+	sl2.Title = "srv 1:"
+	sl2.Data = sparklineData
+	sl2.TitleColor = ui.ColorWhite
+	sl2.LineColor = ui.ColorRed

-	sinps := (func() []float64 {
+	sls := ui.NewSparklines(sl, sl2)
+	sls.Width = 25
+	sls.Height = 7
+	sls.BorderLabel = "Sparkline"
+	sls.Y = 4
+	sls.X = 25
+
+	sinData := (func() []float64 {
 		n := 220
 		ps := make([]float64, n)
 		for i := range ps {
@@ -85,7 +85,7 @@ func main() {

 	lc := ui.NewLineChart()
 	lc.BorderLabel = "dot-mode Line Chart"
-	lc.Data["default"] = sinps
+	lc.Data["default"] = sinData
 	lc.Width = 50
 	lc.Height = 11
 	lc.X = 0
@@ -94,52 +94,56 @@ func main() {
 	lc.LineColor["default"] = ui.ColorRed | ui.AttrBold
 	lc.Mode = "dot"

+	barchartData := []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}
+
 	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.BorderLabel = "Bar Chart"
 	bc.Width = 26
 	bc.Height = 10
 	bc.X = 51
 	bc.Y = 0
-	bc.DataLabels = bclabels
+	bc.DataLabels = []string{"S0", "S1", "S2", "S3", "S4", "S5"}
 	bc.BarColor = ui.ColorGreen
 	bc.NumColor = ui.ColorBlack

-	lc1 := ui.NewLineChart()
-	lc1.BorderLabel = "braille-mode Line Chart"
-	lc1.Data["default"] = sinps
-	lc1.Width = 26
-	lc1.Height = 11
-	lc1.X = 51
-	lc1.Y = 14
-	lc1.AxesColor = ui.ColorWhite
-	lc1.LineColor["default"] = ui.ColorYellow | ui.AttrBold
+	lc2 := ui.NewLineChart()
+	lc2.BorderLabel = "braille-mode Line Chart"
+	lc2.Data["default"] = sinData
+	lc2.Width = 26
+	lc2.Height = 11
+	lc2.X = 51
+	lc2.Y = 14
+	lc2.AxesColor = ui.ColorWhite
+	lc2.LineColor["default"] = ui.ColorYellow | ui.AttrBold

-	p1 := ui.NewPar("Hey!\nI am a borderless block!")
-	p1.Border = false
-	p1.Width = 26
-	p1.Height = 2
-	p1.TextFgColor = ui.ColorMagenta
-	p1.X = 52
-	p1.Y = 11
+	p2 := ui.NewPar("Hey!\nI am a borderless block!")
+	p2.Border = false
+	p2.Width = 26
+	p2.Height = 2
+	p2.TextFgColor = ui.ColorMagenta
+	p2.X = 52
+	p2.Y = 11

-	draw := func(t int) {
-		g.Percent = t % 101
-		list.Items = strs[t%9:]
-		sp.Lines[0].Data = spdata[:30+t%50]
-		sp.Lines[1].Data = spdata[:35+t%50]
-		lc.Data["default"] = sinps[t/2%220:]
-		lc1.Data["default"] = sinps[2*t%220:]
-		bc.Data = bcdata[t/2%10:]
-		ui.Render(p, list, g, sp, lc, bc, lc1, p1)
+	draw := func(count int) {
+		g.Percent = count % 101
+		l.Items = listData[count%9:]
+		sls.Lines[0].Data = sparklineData[:30+count%50]
+		sls.Lines[1].Data = sparklineData[:35+count%50]
+		lc.Data["default"] = sinData[count/2%220:]
+		lc2.Data["default"] = sinData[2*count%220:]
+		bc.Data = barchartData[count/2%10:]
+
+		ui.Render(p, l, g, sls, lc, bc, lc2, p2)
 	}
+
 	ui.Handle("/sys/kbd/q", func(ui.Event) {
 		ui.StopLoop()
 	})
+
 	ui.Handle("/timer/1s", func(e ui.Event) {
 		t := e.Data.(ui.EvtTimer)
 		draw(int(t.Count))
 	})
+
 	ui.Loop()
 }
--- a/_examples/gauge.go
+++ b/_examples/gauge.go
@@ -6,79 +6,74 @@

 package main

-import "github.com/gizak/termui"
+import ui "github.com/gizak/termui"

 func main() {
-	err := termui.Init()
-	if err != nil {
-		panic(err)
-	}
-	defer termui.Close()
+	ui.Init()
+	defer ui.Close()

-	//termui.UseTheme("helloworld")
-
-	g0 := termui.NewGauge()
+	g0 := ui.NewGauge()
 	g0.Percent = 40
 	g0.Width = 50
 	g0.Height = 3
 	g0.BorderLabel = "Slim Gauge"
-	g0.BarColor = termui.ColorRed
-	g0.BorderFg = termui.ColorWhite
-	g0.BorderLabelFg = termui.ColorCyan
+	g0.BarColor = ui.ColorRed
+	g0.BorderFg = ui.ColorWhite
+	g0.BorderLabelFg = ui.ColorCyan

-	gg := termui.NewBlock()
+	gg := ui.NewBlock()
 	gg.Width = 50
 	gg.Height = 5
 	gg.Y = 12
 	gg.BorderLabel = "TEST"
 	gg.Align()

-	g2 := termui.NewGauge()
+	g2 := ui.NewGauge()
 	g2.Percent = 60
 	g2.Width = 50
 	g2.Height = 3
-	g2.PercentColor = termui.ColorBlue
+	g2.PercentColor = ui.ColorBlue
 	g2.Y = 3
 	g2.BorderLabel = "Slim Gauge"
-	g2.BarColor = termui.ColorYellow
-	g2.BorderFg = termui.ColorWhite
+	g2.BarColor = ui.ColorYellow
+	g2.BorderFg = ui.ColorWhite

-	g1 := termui.NewGauge()
+	g1 := ui.NewGauge()
 	g1.Percent = 30
 	g1.Width = 50
 	g1.Height = 5
 	g1.Y = 6
 	g1.BorderLabel = "Big Gauge"
-	g1.PercentColor = termui.ColorYellow
-	g1.BarColor = termui.ColorGreen
-	g1.BorderFg = termui.ColorWhite
-	g1.BorderLabelFg = termui.ColorMagenta
+	g1.PercentColor = ui.ColorYellow
+	g1.BarColor = ui.ColorGreen
+	g1.BorderFg = ui.ColorWhite
+	g1.BorderLabelFg = ui.ColorMagenta

-	g3 := termui.NewGauge()
+	g3 := ui.NewGauge()
 	g3.Percent = 50
 	g3.Width = 50
 	g3.Height = 3
 	g3.Y = 11
 	g3.BorderLabel = "Gauge with custom label"
 	g3.Label = "{{percent}}% (100MBs free)"
-	g3.LabelAlign = termui.AlignRight
+	g3.LabelAlign = ui.AlignRight

-	g4 := termui.NewGauge()
+	g4 := ui.NewGauge()
 	g4.Percent = 50
 	g4.Width = 50
 	g4.Height = 3
 	g4.Y = 14
 	g4.BorderLabel = "Gauge"
 	g4.Label = "Gauge with custom highlighted label"
-	g4.PercentColor = termui.ColorYellow
-	g4.BarColor = termui.ColorGreen
-	g4.PercentColorHighlighted = termui.ColorBlack
+	g4.PercentColor = ui.ColorYellow
+	g4.BarColor = ui.ColorGreen
+	g4.PercentColorHighlighted = ui.ColorBlack

-	termui.Render(g0, g1, g2, g3, g4)
+	ui.Render(g0, g1, g2, g3, g4)

-	termui.Handle("/sys/kbd/q", func(termui.Event) {
-		termui.StopLoop()
+	ui.Handle("/sys/kbd/q", func(ui.Event) {
+		ui.StopLoop()
 	})

-	termui.Loop()
+	ui.Loop()
 }
--- a/_examples/grid.go
+++ b/_examples/grid.go
@@ -13,9 +13,7 @@ import (
 )

 func main() {
-	if err := ui.Init(); err != nil {
-		panic(err)
-	}
+	ui.Init()
 	defer ui.Close()

 	sinps := (func() []float64 {
@@ -96,6 +94,7 @@ func main() {
 	ui.Handle("/sys/kbd/q", func(ui.Event) {
 		ui.StopLoop()
 	})
+
 	ui.Handle("/timer/1s", func(e ui.Event) {
 		t := e.Data.(ui.EvtTimer)
 		i := t.Count
--- a/_examples/linechart.go
+++ b/_examples/linechart.go
@@ -9,17 +9,12 @@ package main
 import (
 	"math"

-	"github.com/gizak/termui"
+	ui "github.com/gizak/termui"
 )

 func main() {
-	err := termui.Init()
-	if err != nil {
-		panic(err)
-	}
-	defer termui.Close()
-
-	//termui.UseTheme("helloworld")
+	err := ui.Init()
+	defer ui.Close()

 	sinps := (func() map[string][]float64 {
 		n := 220
@@ -33,17 +28,17 @@ func main() {
 		return ps
 	})()

-	lc0 := termui.NewLineChart()
+	lc0 := ui.NewLineChart()
 	lc0.BorderLabel = "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["first"] = termui.ColorGreen | termui.AttrBold
+	lc0.AxesColor = ui.ColorWhite
+	lc0.LineColor["first"] = ui.ColorGreen | ui.AttrBold

-	lc1 := termui.NewLineChart()
+	lc1 := ui.NewLineChart()
 	lc1.BorderLabel = "dot-mode Line Chart"
 	lc1.Mode = "dot"
 	lc1.Data = sinps
@@ -51,10 +46,10 @@ func main() {
 	lc1.Height = 12
 	lc1.X = 51
 	lc1.DotStyle = '+'
-	lc1.AxesColor = termui.ColorWhite
-	lc1.LineColor["first"] = termui.ColorYellow | termui.AttrBold
+	lc1.AxesColor = ui.ColorWhite
+	lc1.LineColor["first"] = ui.ColorYellow | ui.AttrBold

-	lc2 := termui.NewLineChart()
+	lc2 := ui.NewLineChart()
 	lc2.BorderLabel = "dot-mode Line Chart"
 	lc2.Mode = "dot"
 	lc2.Data["first"] = sinps["first"][4:]
@@ -63,13 +58,14 @@ func main() {
 	lc2.Height = 16
 	lc2.X = 0
 	lc2.Y = 12
-	lc2.AxesColor = termui.ColorWhite
-	lc2.LineColor["first"] = termui.ColorCyan | termui.AttrBold
+	lc2.AxesColor = ui.ColorWhite
+	lc2.LineColor["first"] = ui.ColorCyan | ui.AttrBold

-	termui.Render(lc0, lc1, lc2)
-	termui.Handle("/sys/kbd/q", func(termui.Event) {
-		termui.StopLoop()
+	ui.Render(lc0, lc1, lc2)
+
+	ui.Handle("/sys/kbd/q", func(ui.Event) {
+		ui.StopLoop()
 	})
-	termui.Loop()

+	ui.Loop()
 }
--- a/_examples/list.go
+++ b/_examples/list.go
@@ -6,16 +6,11 @@

 package main

-import "github.com/gizak/termui"
+import ui "github.com/gizak/termui"

 func main() {
-	err := termui.Init()
-	if err != nil {
-		panic(err)
-	}
-	defer termui.Close()
-
-	//termui.UseTheme("helloworld")
+	ui.Init()
+	defer ui.Close()

 	strs := []string{
 		"[0] github.com/gizak/termui",
@@ -27,18 +22,19 @@ func main() {
 		"[6] dashboard.go",
 		"[7] nsf/termbox-go"}

-	ls := termui.NewList()
+	ls := ui.NewList()
 	ls.Items = strs
-	ls.ItemFgColor = termui.ColorYellow
+	ls.ItemFgColor = ui.ColorYellow
 	ls.BorderLabel = "List"
 	ls.Height = 7
 	ls.Width = 25
 	ls.Y = 0

-	termui.Render(ls)
-	termui.Handle("/sys/kbd/q", func(termui.Event) {
-		termui.StopLoop()
-	})
-	termui.Loop()
+	ui.Render(ls)

+	ui.Handle("/sys/kbd/q", func(ui.Event) {
+		ui.StopLoop()
+	})
+
+	ui.Loop()
 }
--- a/_examples/mbarchart.go
+++ b/_examples/mbarchart.go
@@ -6,18 +6,13 @@

 package main

-import "github.com/gizak/termui"
+import ui "github.com/gizak/termui"

 func main() {
-	err := termui.Init()
-	if err != nil {
-		panic(err)
-	}
-	defer termui.Close()
+	ui.Init()
+	defer ui.Close()

-	//termui.UseTheme("helloworld")
-
-	bc := termui.NewMBarChart()
+	bc := ui.NewMBarChart()
 	math := []int{90, 85, 90, 80}
 	english := []int{70, 85, 75, 60}
 	science := []int{75, 60, 80, 85}
@@ -36,19 +31,20 @@ func main() {
 	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
+	bc.TextColor = ui.ColorGreen    //this is color for label (x-axis)
+	bc.BarColor[3] = ui.ColorGreen  //BarColor for computerscience
+	bc.BarColor[1] = ui.ColorYellow //Bar Color for english
+	bc.NumColor[3] = ui.ColorRed    // Num color for computerscience
+	bc.NumColor[1] = ui.ColorRed    // num color for english

 	//Other colors are automatically populated, btw All the students seems do well in computerscience. :p

-	termui.Render(bc)
+	ui.Render(bc)

-	termui.Handle("/sys/kbd/q", func(termui.Event) {
-		termui.StopLoop()
+	ui.Handle("/sys/kbd/q", func(ui.Event) {
+		ui.StopLoop()
 	})
-	termui.Loop()
+
+	ui.Loop()

 }
--- a/_examples/par.go
+++ b/_examples/par.go
@@ -6,47 +6,43 @@

 package main

-import "github.com/gizak/termui"
+import ui "github.com/gizak/termui"

 func main() {
-	err := termui.Init()
-	if err != nil {
-		panic(err)
-	}
-	defer termui.Close()
+	ui.Init()
+	defer ui.Close()

-	//termui.UseTheme("helloworld")
-
-	par0 := termui.NewPar("Borderless Text")
+	par0 := ui.NewPar("Borderless Text")
 	par0.Height = 1
 	par0.Width = 20
 	par0.Y = 1
 	par0.Border = false

-	par1 := termui.NewPar("你好，世界。")
+	par1 := ui.NewPar("你好，世界。")
 	par1.Height = 3
 	par1.Width = 17
 	par1.X = 20
 	par1.BorderLabel = "标签"

-	par2 := termui.NewPar("Simple colored text\nwith label. It [can be](fg-red) multilined with \\n or [break automatically](fg-red,fg-bold)")
+	par2 := ui.NewPar("Simple colored text\nwith label. It [can be](fg-red) multilined with \\n or [break automatically](fg-red,fg-bold)")
 	par2.Height = 5
 	par2.Width = 37
 	par2.Y = 4
 	par2.BorderLabel = "Multiline"
-	par2.BorderFg = termui.ColorYellow
+	par2.BorderFg = ui.ColorYellow

-	par3 := termui.NewPar("Long text with label and it is auto trimmed.")
+	par3 := ui.NewPar("Long text with label and it is auto trimmed.")
 	par3.Height = 3
 	par3.Width = 37
 	par3.Y = 9
 	par3.BorderLabel = "Auto Trim"

-	termui.Render(par0, par1, par2, par3)
+	ui.Render(par0, par1, par2, par3)

-	termui.Handle("/sys/kbd/q", func(termui.Event) {
-		termui.StopLoop()
+	ui.Handle("/sys/kbd/q", func(ui.Event) {
+		ui.StopLoop()
 	})
-	termui.Loop()
+
+	ui.Loop()

 }
--- a/_examples/piechart.go
+++ b/_examples/piechart.go
@@ -8,14 +8,13 @@ import (
 	"math/rand"
 	"time"

-	"github.com/gizak/termui"
+	ui "github.com/gizak/termui"
 )

 func main() {
-	if err := termui.Init(); err != nil {
-		panic(err)
-	}
-	defer termui.Close()
+	ui.Init()
+	defer ui.Close()
+
 	rand.Seed(time.Now().UTC().UnixNano())
 	randomDataAndOffset := func() (data []float64, offset float64) {
 		noSlices := 1 + rand.Intn(5)
@@ -28,7 +27,7 @@ func main() {
 	}
 	run := true

-	pc := termui.NewPieChart()
+	pc := ui.NewPieChart()
 	pc.BorderLabel = "Pie Chart"
 	pc.Width = 70
 	pc.Height = 36
@@ -38,26 +37,28 @@ func main() {
 		return fmt.Sprintf("%.02f", v)
 	}

-	termui.Handle("/timer/1s", func(e termui.Event) {
+	ui.Handle("/timer/1s", func(e ui.Event) {
 		if run {
 			pc.Data, pc.Offset = randomDataAndOffset()
-			termui.Render(pc)
+			ui.Render(pc)
 		}
 	})

-	termui.Handle("/sys/kbd/s", func(termui.Event) {
+	ui.Handle("/sys/kbd/s", func(ui.Event) {
 		run = !run
 		if run {
 			pc.BorderLabel = "Pie Chart"
 		} else {
 			pc.BorderLabel = "Pie Chart (Stopped)"
 		}
-		termui.Render(pc)
+		ui.Render(pc)
 	})

-	termui.Handle("/sys/kbd/q", func(termui.Event) {
-		termui.StopLoop()
+	ui.Handle("/sys/kbd/q", func(ui.Event) {
+		ui.StopLoop()
 	})
-	termui.Render(pc)
-	termui.Loop()
+
+	ui.Render(pc)
+
+	ui.Loop()
 }
--- a/_examples/sparklines.go
+++ b/_examples/sparklines.go
@@ -6,64 +6,59 @@

 package main

-import "github.com/gizak/termui"
+import ui "github.com/gizak/termui"

 func main() {
-	err := termui.Init()
-	if err != nil {
-		panic(err)
-	}
-	defer termui.Close()
-
-	//termui.UseTheme("helloworld")
+	ui.Init()
+	defer ui.Close()

 	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 := ui.NewSparkline()
 	spl0.Data = data[3:]
 	spl0.Title = "Sparkline 0"
-	spl0.LineColor = termui.ColorGreen
+	spl0.LineColor = ui.ColorGreen

 	// single
-	spls0 := termui.NewSparklines(spl0)
+	spls0 := ui.NewSparklines(spl0)
 	spls0.Height = 2
 	spls0.Width = 20
 	spls0.Border = false

-	spl1 := termui.NewSparkline()
+	spl1 := ui.NewSparkline()
 	spl1.Data = data
 	spl1.Title = "Sparkline 1"
-	spl1.LineColor = termui.ColorRed
+	spl1.LineColor = ui.ColorRed

-	spl2 := termui.NewSparkline()
+	spl2 := ui.NewSparkline()
 	spl2.Data = data[5:]
 	spl2.Title = "Sparkline 2"
-	spl2.LineColor = termui.ColorMagenta
+	spl2.LineColor = ui.ColorMagenta

 	// group
-	spls1 := termui.NewSparklines(spl0, spl1, spl2)
+	spls1 := ui.NewSparklines(spl0, spl1, spl2)
 	spls1.Height = 8
 	spls1.Width = 20
 	spls1.Y = 3
 	spls1.BorderLabel = "Group Sparklines"

-	spl3 := termui.NewSparkline()
+	spl3 := ui.NewSparkline()
 	spl3.Data = data
 	spl3.Title = "Enlarged Sparkline"
 	spl3.Height = 8
-	spl3.LineColor = termui.ColorYellow
+	spl3.LineColor = ui.ColorYellow

-	spls2 := termui.NewSparklines(spl3)
+	spls2 := ui.NewSparklines(spl3)
 	spls2.Height = 11
 	spls2.Width = 30
-	spls2.BorderFg = termui.ColorCyan
+	spls2.BorderFg = ui.ColorCyan
 	spls2.X = 21
 	spls2.BorderLabel = "Tweeked Sparkline"

-	termui.Render(spls0, spls1, spls2)
+	ui.Render(spls0, spls1, spls2)

-	termui.Handle("/sys/kbd/q", func(termui.Event) {
-		termui.StopLoop()
+	ui.Handle("/sys/kbd/q", func(ui.Event) {
+		ui.StopLoop()
 	})
-	termui.Loop()

+	ui.Loop()
 }
--- a/_examples/table.go
+++ b/_examples/table.go
@@ -6,30 +6,28 @@

 package main

-import "github.com/gizak/termui"
+import ui "github.com/gizak/termui"

 func main() {
-	err := termui.Init()
-	if err != nil {
-		panic(err)
-	}
-	defer termui.Close()
+	ui.Init()
+	defer ui.Close()
+
 	rows1 := [][]string{
 		[]string{"header1", "header2", "header3"},
 		[]string{"你好吗", "Go-lang is so cool", "Im working on Ruby"},
 		[]string{"2016", "10", "11"},
 	}

-	table1 := termui.NewTable()
+	table1 := ui.NewTable()
 	table1.Rows = rows1
-	table1.FgColor = termui.ColorWhite
-	table1.BgColor = termui.ColorDefault
+	table1.FgColor = ui.ColorWhite
+	table1.BgColor = ui.ColorDefault
 	table1.Y = 0
 	table1.X = 0
 	table1.Width = 62
 	table1.Height = 7

-	termui.Render(table1)
+	ui.Render(table1)

 	rows2 := [][]string{
 		[]string{"header1", "header2", "header3"},
@@ -37,22 +35,24 @@ func main() {
 		[]string{"2016", "11", "11"},
 	}

-	table2 := termui.NewTable()
+	table2 := ui.NewTable()
 	table2.Rows = rows2
-	table2.FgColor = termui.ColorWhite
-	table2.BgColor = termui.ColorDefault
-	table2.TextAlign = termui.AlignCenter
+	table2.FgColor = ui.ColorWhite
+	table2.BgColor = ui.ColorDefault
+	table2.TextAlign = ui.AlignCenter
 	table2.Separator = false
 	table2.Analysis()
 	table2.SetSize()
-	table2.BgColors[2] = termui.ColorRed
+	table2.BgColors[2] = ui.ColorRed
 	table2.Y = 10
 	table2.X = 0
 	table2.Border = true

-	termui.Render(table2)
-	termui.Handle("/sys/kbd/q", func(termui.Event) {
-		termui.StopLoop()
+	ui.Render(table2)
+
+	ui.Handle("/sys/kbd/q", func(ui.Event) {
+		ui.StopLoop()
 	})
-	termui.Loop()
+
+	ui.Loop()
 }
--- a/_examples/tabs.go
+++ b/_examples/tabs.go
@@ -7,36 +7,31 @@
 package main

 import (
-	"github.com/gizak/termui"
+	ui "github.com/gizak/termui"
 	"github.com/gizak/termui/extra"
 )

 func main() {
-	err := termui.Init()
-	if err != nil {
-		panic(err)
-	}
-	defer termui.Close()
+	ui.Init()
+	defer ui.Close()

-	//termui.UseTheme("helloworld")
-
-	header := termui.NewPar("Press q to quit, Press j or k to switch tabs")
+	header := ui.NewPar("Press q to quit, Press j or k to switch tabs")
 	header.Height = 1
 	header.Width = 50
 	header.Border = false
-	header.TextBgColor = termui.ColorBlue
+	header.TextBgColor = ui.ColorBlue

 	tab1 := extra.NewTab("pierwszy")
-	par2 := termui.NewPar("Press q to quit\nPress j or k to switch tabs\n")
+	par2 := ui.NewPar("Press q to quit\nPress j or k to switch tabs\n")
 	par2.Height = 5
 	par2.Width = 37
 	par2.Y = 0
 	par2.BorderLabel = "Keys"
-	par2.BorderFg = termui.ColorYellow
+	par2.BorderFg = ui.ColorYellow
 	tab1.AddBlocks(par2)

 	tab2 := extra.NewTab("drugi")
-	bc := termui.NewBarChart()
+	bc := ui.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.BorderLabel = "Bar Chart"
@@ -44,9 +39,9 @@ func main() {
 	bc.Width = 26
 	bc.Height = 10
 	bc.DataLabels = bclabels
-	bc.TextColor = termui.ColorGreen
-	bc.BarColor = termui.ColorRed
-	bc.NumColor = termui.ColorYellow
+	bc.TextColor = ui.ColorGreen
+	bc.BarColor = ui.ColorRed
+	bc.NumColor = ui.ColorYellow
 	tab2.AddBlocks(bc)

 	tab3 := extra.NewTab("trzeci")
@@ -61,23 +56,23 @@ func main() {

 	tabpane.SetTabs(*tab1, *tab2, *tab3, *tab4, *tab5, *tab6)

-	termui.Render(header, tabpane)
+	ui.Render(header, tabpane)

-	termui.Handle("/sys/kbd/q", func(termui.Event) {
-		termui.StopLoop()
+	ui.Handle("/sys/kbd/q", func(ui.Event) {
+		ui.StopLoop()
 	})

-	termui.Handle("/sys/kbd/j", func(termui.Event) {
+	ui.Handle("/sys/kbd/j", func(ui.Event) {
 		tabpane.SetActiveLeft()
-		termui.Clear()
-		termui.Render(header, tabpane)
+		ui.Clear()
+		ui.Render(header, tabpane)
 	})

-	termui.Handle("/sys/kbd/k", func(termui.Event) {
+	ui.Handle("/sys/kbd/k", func(ui.Event) {
 		tabpane.SetActiveRight()
-		termui.Clear()
-		termui.Render(header, tabpane)
+		ui.Clear()
+		ui.Render(header, tabpane)
 	})

-	termui.Loop()
+	ui.Loop()
 }
--- a/_examples/theme.go
+++ b/_examples/theme.go
@@ -13,10 +13,7 @@ import (
 )

 func main() {
-	err := ui.Init()
-	if err != nil {
-		panic(err)
-	}
+	ui.Init()
 	defer ui.Close()

 	// Deprecated
@@ -136,12 +133,15 @@ func main() {
 	}

 	ui.Render(p, list, g, sp, lc, bc, lc1, p1)
+
 	ui.Handle("/sys/kbd/q", func(ui.Event) {
 		ui.StopLoop()
 	})
+
 	ui.Handle("/timer/1s", func(e ui.Event) {
 		t := e.Data.(ui.EvtTimer)
 		draw(int(t.Count))
 	})
+
 	ui.Loop()
 }
--- a/_examples/ttop.go
+++ b/_examples/ttop.go
@@ -18,7 +18,7 @@ import (
 	"strconv"
 	"strings"

-	"github.com/gizak/termui"
+	ui "github.com/gizak/termui"
 	"github.com/gizak/termui/extra"
 )

@@ -201,23 +201,23 @@ func getMemStats() (ms MemStat, err error) {
 }

 type CpuTabElems struct {
-	GMap   map[string]*termui.Gauge
-	LChart *termui.LineChart
+	GMap   map[string]*ui.Gauge
+	LChart *ui.LineChart
 }

 func NewCpuTabElems(width int) *CpuTabElems {
-	lc := termui.NewLineChart()
+	lc := ui.NewLineChart()
 	lc.Width = width
 	lc.Height = 12
 	lc.X = 0
 	lc.Mode = "dot"
 	lc.BorderLabel = "CPU"
-	return &CpuTabElems{GMap: make(map[string]*termui.Gauge),
+	return &CpuTabElems{GMap: make(map[string]*ui.Gauge),
 		LChart: lc}
 }

-func (cte *CpuTabElems) AddGauge(key string, Y int, width int) *termui.Gauge {
-	cte.GMap[key] = termui.NewGauge()
+func (cte *CpuTabElems) AddGauge(key string, Y int, width int) *ui.Gauge {
+	cte.GMap[key] = ui.NewGauge()
 	cte.GMap[key].Width = width
 	cte.GMap[key].Height = 3
 	cte.GMap[key].Y = Y
@@ -239,21 +239,21 @@ func (cte *CpuTabElems) Update(cs CpusStats) {
 }

 type MemTabElems struct {
-	Gauge  *termui.Gauge
-	SLines *termui.Sparklines
+	Gauge  *ui.Gauge
+	SLines *ui.Sparklines
 }

 func NewMemTabElems(width int) *MemTabElems {
-	g := termui.NewGauge()
+	g := ui.NewGauge()
 	g.Width = width
 	g.Height = 3
 	g.Y = 0

-	sline := termui.NewSparkline()
+	sline := ui.NewSparkline()
 	sline.Title = "MEM"
 	sline.Height = 8

-	sls := termui.NewSparklines(sline)
+	sls := ui.NewSparklines(sline)
 	sls.Width = width
 	sls.Height = 12
 	sls.Y = 3
@@ -275,21 +275,16 @@ func main() {
 	if runtime.GOOS != "linux" {
 		panic("Currently works only on Linux")
 	}
-	err := termui.Init()
-	if err != nil {
-		panic(err)
-	}
-	defer termui.Close()
+	ui.Init()
+	defer ui.Close()

 	termWidth := 70

-	//termui.UseTheme("helloworld")
-
-	header := termui.NewPar("Press q to quit, Press j or k to switch tabs")
+	header := ui.NewPar("Press q to quit, Press j or k to switch tabs")
 	header.Height = 1
 	header.Width = 50
 	header.Border = false
-	header.TextBgColor = termui.ColorBlue
+	header.TextBgColor = ui.ColorBlue

 	tabCpu := extra.NewTab("CPU")
 	tabMem := extra.NewTab("MEM")
@@ -333,23 +328,23 @@ func main() {

 	tabpane.SetTabs(*tabCpu, *tabMem)

-	termui.Render(header, tabpane)
+	ui.Render(header, tabpane)

-	termui.Handle("/sys/kbd/q", func(termui.Event) {
-		termui.StopLoop()
+	ui.Handle("/sys/kbd/q", func(ui.Event) {
+		ui.StopLoop()
 	})

-	termui.Handle("/sys/kbd/j", func(termui.Event) {
+	ui.Handle("/sys/kbd/j", func(ui.Event) {
 		tabpane.SetActiveLeft()
-		termui.Render(header, tabpane)
+		ui.Render(header, tabpane)
 	})

-	termui.Handle("/sys/kbd/k", func(termui.Event) {
+	ui.Handle("/sys/kbd/k", func(ui.Event) {
 		tabpane.SetActiveRight()
-		termui.Render(header, tabpane)
+		ui.Render(header, tabpane)
 	})

-	termui.Handle("/timer/1s", func(e termui.Event) {
+	ui.Handle("/timer/1s", func(e ui.Event) {
 		cs, errcs := getCpusStatsMap()
 		if errcs != nil {
 			panic(errcs)
@@ -362,8 +357,8 @@ func main() {
 			panic(errm)
 		}
 		memTabElems.Update(ms)
-		termui.Render(header, tabpane)
+		ui.Render(header, tabpane)
 	})

-	termui.Loop()
+	ui.Loop()
 }
--- a/_examples/wrapper.go
+++ b/_examples/wrapper.go
@@ -9,11 +9,7 @@ package main
 import ui "github.com/gizak/termui"

 func main() {
-
-	err := ui.Init()
-	if err != nil {
-		panic(err)
-	}
+	ui.Init()
 	defer ui.Close()

 	p := ui.NewPar("Press q to QUIT THE DEMO. [There](fg-blue) are other things [that](fg-red) are going to fit in here I think. What do you think? Now is the time for all good [men to](bg-blue) come to the aid of their country. [This is going to be one really really really long line](fg-green) that is going to go together and stuffs and things. Let's see how this thing renders out.\n    Here is a new paragraph and stuffs and things. There should be a tab indent at the beginning of the paragraph. Let's see if that worked as well.")