added gauge component type

2019-02-25 23:36:23 -05:00 · 2019-02-25 23:36:23 -05:00 · 7b22a083a4
parent a40cc50f3f
commit 7b22a083a4
17 changed files with 313 additions and 116 deletions
--- a/component/asciibox/asciibox.go
+++ b/component/asciibox/asciibox.go
@ -1,7 +1,7 @@
 package asciibox

 import (
-	fl "github.com/sqshq/figlet4go"
+	fl "github.com/mbndr/figlet4go"
 	"github.com/sqshq/sampler/asset"
 	"github.com/sqshq/sampler/data"
 	ui "github.com/sqshq/termui"
@ -24,6 +24,8 @@ const (
 	AsciiFont3D   AsciiFont = "3d"
 )

+const asciiFontExtension = ".flf"
+
 func NewAsciiBox(title string, font AsciiFont, color ui.Color) *AsciiBox {

 	block := *ui.NewBlock()
@ -32,7 +34,7 @@ func NewAsciiBox(title string, font AsciiFont, color ui.Color) *AsciiBox {
 	options := fl.NewRenderOptions()
 	options.FontName = string(font)

-	fontStr, err := asset.Asset(options.FontName + ".flf")
+	fontStr, err := asset.Asset(options.FontName + asciiFontExtension)
 	if err != nil {
 		panic("Can't load the font: " + err.Error())
 	}
--- a/component/barchart/barchart.go
+++ b/component/barchart/barchart.go
@ -12,7 +12,6 @@ import (
 )

 const (
-	barSymbol rune = '⠿'
 	barIndent int = 1
 )

@ -106,7 +105,7 @@ func (b *BarChart) Draw(buf *ui.Buffer) {
 		maxYCoordinate := b.Inner.Max.Y - height
 		for x := barXCoordinate; x < ui.MinInt(barXCoordinate+barWidth, b.Inner.Max.X-barIndent); x++ {
 			for y := b.Inner.Max.Y - 2; y >= maxYCoordinate; y-- {
-				c := ui.NewCell(barSymbol, ui.NewStyle(bar.color))
+				c := ui.NewCell(console.SymbolShade, ui.NewStyle(bar.color))
 				buf.SetCell(c, image.Pt(x, y))
 			}
 		}
--- a/component/component.go
+++ b/component/component.go
@ -5,6 +5,10 @@ import (
 	ui "github.com/sqshq/termui"
 )

+const (
+	minDimension = 3
+)
+
 type Component struct {
 	Type          config.ComponentType
 	Drawable      ui.Drawable
@ -27,11 +31,11 @@ func (c *Component) Resize(x, y int) {
 }

 func (c *Component) normalize() {
-	if c.Size.X < 0 {
-		c.Size.X = 0
+	if c.Size.X < minDimension {
+		c.Size.X = minDimension
 	}
-	if c.Size.Y < 0 {
-		c.Size.Y = 0
+	if c.Size.Y < minDimension {
+		c.Size.Y = minDimension
 	}
 	if c.Position.X < 0 {
 		c.Position.X = 0
--- a/component/gauge/gauge.go
+++ b/component/gauge/gauge.go
@ -0,0 +1,103 @@
+package gauge
+
+import (
+	"fmt"
+	"github.com/sqshq/sampler/console"
+	"github.com/sqshq/sampler/data"
+	ui "github.com/sqshq/termui"
+	"image"
+	"math"
+	"strconv"
+)
+
+const (
+	MinValueLabel = "min"
+	MaxValueLabel = "max"
+	CurValueLabel = "cur"
+)
+
+type Gauge struct {
+	ui.Block
+	minValue float64
+	maxValue float64
+	curValue float64
+	scale    int
+	color    ui.Color
+}
+
+func NewGauge(title string, scale int, color ui.Color) *Gauge {
+	block := *ui.NewBlock()
+	block.Title = title
+	return &Gauge{
+		Block: block,
+		scale: scale,
+		color: color,
+	}
+}
+
+func (g *Gauge) ConsumeSample(sample data.Sample) {
+
+	float, err := strconv.ParseFloat(sample.Value, 64)
+	if err != nil {
+		// TODO visual notification + check sample.Error
+	}
+
+	switch sample.Label {
+	case MinValueLabel:
+		g.minValue = float
+		break
+	case MaxValueLabel:
+		g.maxValue = float
+		break
+	case CurValueLabel:
+		g.curValue = float
+		break
+	}
+}
+
+func (g *Gauge) Draw(buf *ui.Buffer) {
+
+	g.Block.Draw(buf)
+
+	percent := 0.0
+	if g.curValue != 0 {
+		percent = (100 * g.curValue) / (g.maxValue - g.minValue)
+	}
+
+	label := fmt.Sprintf("%v%% (%v)", formatValue(percent, g.scale), g.curValue)
+
+	// plot bar
+	barWidth := int((percent / 100) * float64(g.Inner.Dx()))
+	if barWidth == 0 {
+		barWidth = 1
+	} else if barWidth > g.Dx()-2 {
+		barWidth = g.Dx() - 2
+	}
+	buf.Fill(
+		ui.NewCell(console.SymbolVerticalBar, ui.NewStyle(g.color)),
+		image.Rect(g.Inner.Min.X+1, g.Inner.Min.Y, g.Inner.Min.X+barWidth, g.Inner.Max.Y),
+	)
+
+	// plot label
+	labelXCoordinate := g.Inner.Min.X + (g.Inner.Dx() / 2) - int(float64(len(label))/2)
+	labelYCoordinate := g.Inner.Min.Y + ((g.Inner.Dy() - 1) / 2)
+	if labelYCoordinate < g.Inner.Max.Y {
+		for i, char := range label {
+			style := ui.NewStyle(console.ColorWhite)
+			if labelXCoordinate+i+1 <= g.Inner.Min.X+barWidth {
+				style = ui.NewStyle(console.ColorWhite, ui.ColorClear)
+			}
+			buf.SetCell(ui.NewCell(char, style), image.Pt(labelXCoordinate+i, labelYCoordinate))
+		}
+	}
+}
+
+// TODO extract to utils
+func formatValue(value float64, scale int) string {
+	if math.Abs(value) == math.MaxFloat64 {
+		return "Inf"
+	} else {
+		format := "%." + strconv.Itoa(scale) + "f"
+		return fmt.Sprintf(format, value)
+	}
+}
--- a/component/layout.go
+++ b/component/layout.go
@ -29,8 +29,8 @@ const (
 )

 const (
-	columnsCount    = 60
-	rowsCount       = 40
+	columnsCount    = 80
+	rowsCount       = 60
 	statusbarHeight = 1
 )

--- a/component/menu.go
+++ b/component/menu.go
@ -33,6 +33,10 @@ const (
 	MenuOptionResume   MenuOption = "RESUME"
 )

+const (
+	minimalMenuHeight = 8
+)
+
 func NewMenu() *Menu {
 	block := *ui.NewBlock()
 	block.Border = true
@ -99,7 +103,12 @@ func (m *Menu) Draw(buffer *ui.Buffer) {

 	m.updateDimensions()
 	buffer.Fill(ui.NewCell(' ', ui.NewStyle(ui.ColorBlack)), m.GetRect())
+
+	if m.Dy() > minimalMenuHeight {
 		m.drawInnerBorder(buffer)
+	}
+
+	m.Block.Draw(buffer)

 	switch m.mode {
 	case MenuModeHighlight:
@ -109,15 +118,25 @@ func (m *Menu) Draw(buffer *ui.Buffer) {
 	case MenuModeOptionSelect:
 		m.renderOptions(buffer)
 	}
-
-	m.Block.Draw(buffer)
 }

 func (m *Menu) renderHighlight(buffer *ui.Buffer) {

+	arrowsText := "Use arrows for selection"
+	optionsText := "<ENTER> to view options"
+	resumeText := "<ESC> to resume"
+
+	if m.Dy() <= minimalMenuHeight {
+		buffer.SetString(
+			optionsText,
+			ui.NewStyle(console.ColorDarkGrey),
+			getMiddlePoint(m.Block, optionsText, -1),
+		)
+		return
+	}
+
 	m.printAllDirectionsArrowSign(buffer, -2)

-	arrowsText := "Use arrows for selection"
 	arrowsTextPoint := getMiddlePoint(m.Block, arrowsText, 2)
 	if arrowsTextPoint.Y+1 < m.Inner.Max.Y {
 		buffer.SetString(
@ -127,7 +146,6 @@ func (m *Menu) renderHighlight(buffer *ui.Buffer) {
 		)
 	}

-	optionsText := "<ENTER> to view options"
 	optionsTextPoint := getMiddlePoint(m.Block, optionsText, 3)
 	if optionsTextPoint.Y+1 < m.Inner.Max.Y {
 		buffer.SetString(
@ -137,7 +155,6 @@ func (m *Menu) renderHighlight(buffer *ui.Buffer) {
 		)
 	}

-	resumeText := "<ESC> to resume"
 	resumeTextPoint := getMiddlePoint(m.Block, resumeText, 4)
 	if resumeTextPoint.Y+1 < m.Inner.Max.Y {
 		buffer.SetString(
@ -150,17 +167,15 @@ func (m *Menu) renderHighlight(buffer *ui.Buffer) {

 func (m *Menu) renderMoveAndResize(buffer *ui.Buffer) {

-	m.printAllDirectionsArrowSign(buffer, -2)
-
 	saveText := "<ENTER> to save changes"
-	saveTextPoint := getMiddlePoint(m.Block, saveText, 4)
-	if saveTextPoint.In(m.Rectangle) {
-		buffer.SetString(
-			saveText,
-			ui.NewStyle(console.ColorDarkGrey),
-			saveTextPoint,
-		)
+
+	if m.Dy() <= minimalMenuHeight {
+		buffer.SetString(saveText, ui.NewStyle(console.ColorDarkGrey), getMiddlePoint(m.Block, saveText, -1))
+		return
 	}
+
+	m.printAllDirectionsArrowSign(buffer, -1)
+	buffer.SetString(saveText, ui.NewStyle(console.ColorDarkGrey), getMiddlePoint(m.Block, saveText, 3))
 }

 func (m *Menu) printAllDirectionsArrowSign(buffer *ui.Buffer, y int) {
@ -184,7 +199,7 @@ func (m *Menu) renderOptions(buffer *ui.Buffer) {

 	// TODO extract styles to console.Palette
 	highlightedStyle := ui.NewStyle(console.ColorOlive, console.ColorBlack, ui.ModifierReverse)
-	regularStyle := ui.NewStyle(console.ColorWhite)
+	regularStyle := ui.NewStyle(console.ColorWhite, console.ColorBlack)

 	offset := 1
 	for _, option := range m.options {
@ -197,9 +212,10 @@ func (m *Menu) renderOptions(buffer *ui.Buffer) {
 		if option != MenuOptionPinpoint || m.component.Type == config.TypeRunChart {
 			offset += 2
 			point := getMiddlePoint(m.Block, string(option), offset-5)
-			if point.In(m.GetRect()) {
 			buffer.SetString(string(option), style, point)
-			}
+			//if point.In(m.GetRect()) {
+			//	buffer.SetString(string(option), style, point)
+			//}
 		}
 	}
 }
--- a/config.yml
+++ b/config.yml
@ -9,11 +9,11 @@ runcharts:
  scale: 3
  items:
  - label: GOOGLE
-    script: curl -o /dev/null -s -w '%{time_total}'  https://www.google.com
+    value: curl -o /dev/null -s -w '%{time_total}'  https://www.google.com
  - label: YAHOO
-    script: curl -o /dev/null -s -w '%{time_total}'  https://search.yahoo.com
+    value: curl -o /dev/null -s -w '%{time_total}'  https://search.yahoo.com
  - label: BING
-    script: curl -o /dev/null -s -w '%{time_total}'  https://www.bing.com
+    value: curl -o /dev/null -s -w '%{time_total}'  https://www.bing.com
 - title: SEARCH ENGINE RESPONSE TIME 2 (sec)
  refresh-rate-ms: 5000
  position:
@ -27,11 +27,11 @@ runcharts:
    details: false
  items:
  - label: GOOGLE
-    script: curl -o /dev/null -s -w '%{time_total}'  https://www.google.com
+    value: curl -o /dev/null -s -w '%{time_total}'  https://www.google.com
  - label: YAHOO
-    script: curl -o /dev/null -s -w '%{time_total}'  https://search.yahoo.com
+    value: curl -o /dev/null -s -w '%{time_total}'  https://search.yahoo.com
  - label: BING
-    script: curl -o /dev/null -s -w '%{time_total}'  https://www.bing.com
+    value: curl -o /dev/null -s -w '%{time_total}'  https://www.bing.com
 - title: MONGO COLLECTIONS COUNT
  position:
    w: 21
@ -42,9 +42,9 @@ runcharts:
  scale: 0
  items:
  - label: ACTIVE
-    script: mongo --quiet --host=localhost blog --eval "db.getCollection('posts').find({status:'ACTIVE'}).itcount()"
+    value: mongo --quiet --host=localhost blog --eval "db.getCollection('posts').find({status:'ACTIVE'}).itcount()"
  - label: INACTIVE
-    script: mongo --quiet --host=localhost blog --eval "db.getCollection('posts').find({status:'INACTIVE'}).itcount()"
+    value: mongo --quiet --host=localhost blog --eval "db.getCollection('posts').find({status:'INACTIVE'}).itcount()"
 barcharts:
 - title: EVENTS BY STATUS
  refresh-rate-ms: 1000
@ -57,15 +57,28 @@ barcharts:
  scale: 0
  items:
  - label: NEW
-    script: mongo --quiet --host=localhost blog --eval "db.getCollection('posts').find({status:'ACTIVE'}).itcount()"
+    value: mongo --quiet --host=localhost blog --eval "db.getCollection('posts').find({status:'ACTIVE'}).itcount()"
  - label: TRIGGERED
-    script: mongo --quiet --host=localhost blog --eval "db.getCollection('posts').find({status:'INACTIVE'}).itcount()"
+    value: mongo --quiet --host=localhost blog --eval "db.getCollection('posts').find({status:'INACTIVE'}).itcount()"
  - label: IN_PROCESS
-    script: echo 0
-  - label: FINISHED
-    script: mongo --quiet --host=localhost blog --eval "db.getCollection('posts').find({status:'ACTIVE'}).itcount()"
+    value: echo 0
  - label: FAILED
-    script: mongo --quiet --host=localhost blog --eval "db.getCollection('posts').find({status:'INACTIVE'}).itcount()"
+    value: mongo --quiet --host=localhost blog --eval "db.getCollection('posts').find({status:'ACTIVE'}).itcount()"
+  - label: FINISHED
+    value: mongo --quiet --host=localhost blog --eval "db.getCollection('posts').find({status:'INACTIVE'}).itcount()"
+gauges:
+- title: YEAR PROGRESS
+  position:
+    w: 21
+    h: 33
+  size:
+    w: 20
+    h: 3
+  values:
+    cur: echo 245
+    max: echo 365
+    min: echo 0
+  items: []
 asciiboxes:
 - title: LOCAL TIME
  position:
@ -74,7 +87,7 @@ asciiboxes:
  size:
    w: 20
    h: 6
-  script: date +%r
+  value: date +%r
 - title: UTC TIME
  position:
    w: 40
@ -82,5 +95,5 @@ asciiboxes:
  size:
    w: 20
    h: 7
-  script: env TZ=UTC date +%r
+  value: env TZ=UTC date +%r
  font: 3d
--- a/config/component.go
+++ b/config/component.go
@ -0,0 +1,73 @@
+package config
+
+import (
+	"github.com/sqshq/sampler/component/asciibox"
+	"github.com/sqshq/sampler/data"
+	ui "github.com/sqshq/termui"
+)
+
+type ComponentConfig struct {
+	Title         string   `yaml:"title"`
+	RefreshRateMs *int     `yaml:"refresh-rate-ms,omitempty"`
+	Position      Position `yaml:"position"`
+	Size          Size     `yaml:"size"`
+}
+
+type GaugeConfig struct {
+	ComponentConfig `yaml:",inline"`
+	Scale           *int              `yaml:"scale,omitempty"`
+	Color           *ui.Color         `yaml:"color,omitempty"`
+	Values          map[string]string `yaml:"values"`
+	Items           []data.Item
+}
+
+type BarChartConfig struct {
+	ComponentConfig `yaml:",inline"`
+	Scale           *int        `yaml:"scale,omitempty"`
+	Items           []data.Item `yaml:"items"`
+}
+
+type AsciiBoxConfig struct {
+	ComponentConfig `yaml:",inline"`
+	data.Item       `yaml:",inline"`
+	Font            *asciibox.AsciiFont `yaml:"font,omitempty"`
+}
+
+type RunChartConfig struct {
+	ComponentConfig `yaml:",inline"`
+	Legend          *LegendConfig `yaml:"legend,omitempty"`
+	Scale           *int          `yaml:"scale,omitempty"`
+	Items           []data.Item   `yaml:"items"`
+}
+
+type LegendConfig struct {
+	Enabled bool `yaml:"enabled"`
+	Details bool `yaml:"details"`
+}
+
+type Position struct {
+	X int `yaml:"w"`
+	Y int `yaml:"h"`
+}
+
+type Size struct {
+	X int `yaml:"w"`
+	Y int `yaml:"h"`
+}
+
+type ComponentType rune
+
+const (
+	TypeRunChart ComponentType = 0
+	TypeBarChart ComponentType = 1
+	TypeTextBox  ComponentType = 2
+	TypeAsciiBox ComponentType = 3
+	TypeGauge    ComponentType = 4
+)
+
+type ComponentSettings struct {
+	Type     ComponentType
+	Title    string
+	Size     Size
+	Position Position
+}
--- a/config/config.go
+++ b/config/config.go
@ -2,9 +2,7 @@ package config

 import (
 	"fmt"
-	"github.com/sqshq/sampler/component/asciibox"
 	"github.com/sqshq/sampler/console"
-	"github.com/sqshq/sampler/data"
 	"gopkg.in/yaml.v2"
 	"io/ioutil"
 	"log"
@ -15,6 +13,7 @@ type Config struct {
 	Theme      *console.Theme   `yaml:"theme,omitempty"`
 	RunCharts  []RunChartConfig `yaml:"runcharts,omitempty"`
 	BarCharts  []BarChartConfig `yaml:"barcharts,omitempty"`
+	Gauges     []GaugeConfig    `yaml:"gauges,omitempty"`
 	AsciiBoxes []AsciiBoxConfig `yaml:"asciiboxes,omitempty"`
 }

@ -23,63 +22,6 @@ type Flags struct {
 	Variables      map[string]string
 }

-type ComponentConfig struct {
-	Title         string   `yaml:"title"`
-	RefreshRateMs *int     `yaml:"refresh-rate-ms,omitempty"`
-	Position      Position `yaml:"position"`
-	Size          Size     `yaml:"size"`
-}
-
-type RunChartConfig struct {
-	ComponentConfig `yaml:",inline"`
-	Legend          *LegendConfig `yaml:"legend,omitempty"`
-	Scale           *int          `yaml:"scale,omitempty"`
-	Items           []data.Item   `yaml:"items"`
-}
-
-type BarChartConfig struct {
-	ComponentConfig `yaml:",inline"`
-	Scale           *int        `yaml:"scale,omitempty"`
-	Items           []data.Item `yaml:"items"`
-}
-
-type AsciiBoxConfig struct {
-	ComponentConfig `yaml:",inline"`
-	data.Item       `yaml:",inline"`
-	Font            *asciibox.AsciiFont `yaml:"font,omitempty"`
-}
-
-type LegendConfig struct {
-	Enabled bool `yaml:"enabled"`
-	Details bool `yaml:"details"`
-}
-
-type Position struct {
-	X int `yaml:"w"`
-	Y int `yaml:"h"`
-}
-
-type Size struct {
-	X int `yaml:"w"`
-	Y int `yaml:"h"`
-}
-
-type ComponentType rune
-
-const (
-	TypeRunChart ComponentType = 0
-	TypeBarChart ComponentType = 1
-	TypeTextBox  ComponentType = 2
-	TypeAsciiBox ComponentType = 3
-)
-
-type ComponentSettings struct {
-	Type     ComponentType
-	Title    string
-	Size     Size
-	Position Position
-}
-
 func Load() (Config, Flags) {

 	if len(os.Args) < 2 {
@ -121,6 +63,12 @@ func (c *Config) findComponent(componentType ComponentType, componentTitle strin
 				return &c.BarCharts[i].ComponentConfig
 			}
 		}
+	case TypeGauge:
+		for i, component := range c.Gauges {
+			if component.Title == componentTitle {
+				return &c.Gauges[i].ComponentConfig
+			}
+		}
 	case TypeAsciiBox:
 		for i, component := range c.AsciiBoxes {
 			if component.Title == componentTitle {
--- a/config/default.go
+++ b/config/default.go
@ -3,6 +3,7 @@ package config
 import (
 	"github.com/sqshq/sampler/component/asciibox"
 	"github.com/sqshq/sampler/console"
+	"github.com/sqshq/sampler/data"
 )

 const (
@ -52,6 +53,24 @@ func (c *Config) setDefaultValues() {
 		c.BarCharts[i] = chart
 	}

+	for i, g := range c.Gauges {
+		if g.RefreshRateMs == nil {
+			r := defaultRefreshRateMs
+			g.RefreshRateMs = &r
+		}
+		if g.Scale == nil {
+			p := defaultScale
+			g.Scale = &p
+		}
+		var items []data.Item
+		for label, script := range g.Values {
+			l := label
+			items = append(items, data.Item{Label: &l, Script: script})
+		}
+		g.Items = items
+		c.Gauges[i] = g
+	}
+
 	for i, box := range c.AsciiBoxes {
 		if box.RefreshRateMs == nil {
 			r := defaultRefreshRateMs
@ -99,4 +118,11 @@ func (c *Config) setDefaultColors() {
 			}
 		}
 	}
+
+	for i, g := range c.Gauges {
+		if g.Color == nil {
+			g.Color = &palette.Colors[i%colorsCount]
+			c.Gauges[i] = g
+		}
+	}
 }
--- a/console/palette.go
+++ b/console/palette.go
@ -28,7 +28,7 @@ const (
 )

 const (
-	MenuColorBackground ui.Color = 236
+	MenuColorBackground ui.Color = 234
 	MenuColorText       ui.Color = 255
 )

--- a/console/symbol.go
+++ b/console/symbol.go
@ -2,4 +2,6 @@ package console

 const (
 	SymbolSelection   rune = '▲'
+	SymbolVerticalBar rune = '⢸'
+	SymbolShade       rune = '⣿'
 )
--- a/data/item.go
+++ b/data/item.go
@ -8,7 +8,7 @@ import (

 type Item struct {
 	Label  *string   `yaml:"label,omitempty"`
-	Script string    `yaml:"script"`
+	Script string    `yaml:"value"`
 	Color  *ui.Color `yaml:"color,omitempty"`
 }

--- a/go.mod
+++ b/go.mod
@ -4,8 +4,8 @@ require (
 	github.com/hajimehoshi/go-mp3 v0.1.1
 	github.com/hajimehoshi/oto v0.1.1
 	github.com/mattn/go-runewidth v0.0.4
+	github.com/mbndr/figlet4go v0.0.0-20190224160619-d6cef5b186ea
 	github.com/mitchellh/go-wordwrap v1.0.0 // indirect
-	github.com/sqshq/figlet4go v0.0.0-20190224060604-5ce91d55ba00
 	github.com/sqshq/termui v0.0.0-20190125032456-731556c09f2c
 	gopkg.in/yaml.v2 v2.2.2
 )
--- a/go.sum
+++ b/go.sum
@ -11,13 +11,13 @@ github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:
 github.com/mattn/go-runewidth v0.0.2/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
 github.com/mattn/go-runewidth v0.0.4 h1:2BvfKmzob6Bmd4YsL0zygOqfdFnK7GR4QL06Do4/p7Y=
 github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
+github.com/mbndr/figlet4go v0.0.0-20190224160619-d6cef5b186ea h1:mQncVDBpKkAecPcH2IMGpKUQYhwowlafQbfkz2QFqkc=
+github.com/mbndr/figlet4go v0.0.0-20190224160619-d6cef5b186ea/go.mod h1:QzTGLGoOqLHUBK8/EZ0v4Fa4CdyXmdyRwCHcl0YbeO4=
 github.com/mitchellh/go-wordwrap v0.0.0-20150314170334-ad45545899c7/go.mod h1:ZXFpozHsX6DPmq2I0TCekCxypsnAUbP2oI0UX1GXzOo=
 github.com/mitchellh/go-wordwrap v1.0.0 h1:6GlHJ/LTGMrIJbwgdqdl2eEH8o+Exx/0m8ir9Gns0u4=
 github.com/mitchellh/go-wordwrap v1.0.0/go.mod h1:ZXFpozHsX6DPmq2I0TCekCxypsnAUbP2oI0UX1GXzOo=
 github.com/nsf/termbox-go v0.0.0-20190121233118-02980233997d h1:x3S6kxmy49zXVVyhcnrFqxvNVCBPb2KZ9hV2RBdS840=
 github.com/nsf/termbox-go v0.0.0-20190121233118-02980233997d/go.mod h1:IuKpRQcYE1Tfu+oAQqaLisqDeXgjyyltCfsaoYN18NQ=
-github.com/sqshq/figlet4go v0.0.0-20190224060604-5ce91d55ba00 h1:HDXBCtVmmsZ0uMTd7CduTASlVECbRZhyAc0m3C+Dbjk=
-github.com/sqshq/figlet4go v0.0.0-20190224060604-5ce91d55ba00/go.mod h1:8MTXZj469VoimW9vWH9LcL9Q3k1SRa+dgZdni8ZZw0o=
 github.com/sqshq/termui v0.0.0-20190125032456-731556c09f2c h1:BBEmIcD4UhAHDVWi3PVuA5TxVTZxcjmYzmdvhWkPfvE=
 github.com/sqshq/termui v0.0.0-20190125032456-731556c09f2c/go.mod h1:puWaguPLLYPPKabYPVhZ8sDNe0nKSMiKWRfLVaaX8Zs=
 golang.org/x/arch v0.0.0-20181203225421-5a4828bb7045/go.mod h1:cYlCBUl1MsqxdiKgmc4uh7TxZfWSFLOGSRR090WDxt8=
--- a/main.go
+++ b/main.go
@ -4,6 +4,7 @@ import (
 	"github.com/sqshq/sampler/component"
 	"github.com/sqshq/sampler/component/asciibox"
 	"github.com/sqshq/sampler/component/barchart"
+	"github.com/sqshq/sampler/component/gauge"
 	"github.com/sqshq/sampler/component/runchart"
 	"github.com/sqshq/sampler/config"
 	"github.com/sqshq/sampler/console"
@ -40,14 +41,24 @@ func main() {
 		data.NewSampler(box, a.Item, *a.RefreshRateMs)
 	}

-	for _, c := range cfg.BarCharts {
+	for _, b := range cfg.BarCharts {

-		chart := barchart.NewBarChart(c.Title, *c.Scale)
-		layout.AddComponent(config.TypeBarChart, chart, c.Title, c.Position, c.Size, *c.RefreshRateMs)
+		chart := barchart.NewBarChart(b.Title, *b.Scale)
+		layout.AddComponent(config.TypeBarChart, chart, b.Title, b.Position, b.Size, *b.RefreshRateMs)

-		for _, item := range c.Items {
+		for _, item := range b.Items {
 			chart.AddBar(*item.Label, *item.Color)
-			data.NewSampler(chart, item, *c.RefreshRateMs)
+			data.NewSampler(chart, item, *b.RefreshRateMs)
+		}
+	}
+
+	for _, gc := range cfg.Gauges {
+
+		g := gauge.NewGauge(gc.Title, *gc.Scale, *gc.Color)
+		layout.AddComponent(config.TypeGauge, g, gc.Title, gc.Position, gc.Size, *gc.RefreshRateMs)
+
+		for _, item := range gc.Items {
+			data.NewSampler(g, item, *gc.RefreshRateMs)
 		}
 	}

--- a/sampler.zip
+++ b/sampler.zip