Initial commit

app/config/config.go

@@ -0,0 +1,28 @@
+package config
+
+import (
+	"gopkg.in/yaml.v2"
+	"io/ioutil"
+	"log"
+)
+
+type Config struct {
+	LineCharts []LineChartConfig `yaml:"line-charts"`
+}
+
+func Load(location string) *Config {
+
+	yamlFile, err := ioutil.ReadFile(location)
+	if err != nil {
+		log.Fatalf("Can't read config file: %s", location)
+	}
+
+ 	cfg := new(Config)
+	err = yaml.Unmarshal(yamlFile, cfg)
+
+	if err != nil {
+		log.Fatalf("Can't read config file: %v", err)
+	}
+
+	return cfg
+}

app/config/data.go

@@ -0,0 +1,31 @@
+package config
+
+import (
+	"log"
+	"os/exec"
+	"strconv"
+	"strings"
+)
+
+type Data struct {
+	Label string `yaml:"label"`
+	Color string `yaml:"color"`
+	Script string `yaml:"script"`
+}
+
+func (d *Data) NextValue() (float64, error) {
+
+	output, err := exec.Command("sh", "-c", d.Script).Output()
+	if err != nil {
+		log.Printf("%s", err)
+	}
+
+	trimmedOutput := strings.TrimSpace(string(output))
+	floatValue, err := strconv.ParseFloat(trimmedOutput, 64)
+
+	if err != nil {
+		return 0, err
+	}
+
+	return floatValue, nil
+}

app/config/linechart.go

@@ -0,0 +1,9 @@
+package config
+
+type LineChartConfig struct {
+	Title string `yaml:"title"`
+	Data []Data `yaml:"data"`
+	Position Position `yaml:"position"`
+	RefreshRateMs int `yaml:"refresh-rate-ms"`
+	Scale string `yaml:"scale"`
+}

app/config/position.go

@@ -0,0 +1,6 @@
+package config
+
+type Position struct {
+	X int `yaml:"x"`
+	Y int `yaml:"y"`
+}

app/config/size.go

@@ -0,0 +1,6 @@
+package config
+
+type Size struct {
+	X int `yaml:"x"`
+	Y int `yaml:"y"`
+}

app/main.go

@@ -0,0 +1,92 @@
+package main
+
+import (
+	"github.com/sqshq/plot-try/app/config"
+	ui "github.com/sqshq/termui"
+	"github.com/sqshq/termui/widgets"
+	"log"
+	"math"
+)
+
+func main() {
+
+	cfg := config.Load("/Users/sqshq/config.yml")
+
+	for _, linechart := range cfg.LineCharts {
+		for _, data := range linechart.Data {
+			value, _ := data.NextValue()
+			log.Printf("%s: %s - %v", linechart.Title, data.Label, value)
+		}
+	}
+
+	printChart()
+}
+
+func printChart() {
+	if err := ui.Init(); err != nil {
+		log.Fatalf("failed to initialize termui: %v", err)
+	}
+	defer ui.Close()
+
+	sinData := func() [][]float64 {
+		n := 220
+		data := make([][]float64, 2)
+		data[0] = make([]float64, n)
+		data[1] = make([]float64, n)
+		for i := 0; i < n; i++ {
+			data[0][i] = 1 + math.Sin(float64(i)/5)
+			data[1][i] = 1 + math.Cos(float64(i)/5)
+		}
+		return data
+	}()
+
+	p0 := widgets.NewPlot()
+	p0.Title = "braille-mode Line Chart"
+	p0.Data = sinData
+	p0.SetRect(0, 0, 50, 15)
+	p0.AxesColor = ui.ColorWhite
+	p0.LineColors[0] = ui.ColorGreen
+
+	p1 := widgets.NewPlot()
+	p1.Title = "dot-mode line Chart"
+	p1.Marker = widgets.MarkerDot
+	p1.Data = [][]float64{[]float64{1, 2, 3, 4, 5}}
+	p1.SetRect(50, 0, 75, 10)
+	p1.DotRune = '+'
+	p1.AxesColor = ui.ColorWhite
+	p1.LineColors[0] = ui.ColorYellow
+	p1.DrawDirection = widgets.DrawLeft
+
+	p2 := widgets.NewPlot()
+	p2.Title = "dot-mode Scatter Plot"
+	p2.Marker = widgets.MarkerDot
+	p2.Data = make([][]float64, 2)
+	p2.Data[0] = []float64{1, 2, 3, 4, 5}
+	p2.Data[1] = sinData[1][4:]
+	p2.SetRect(0, 15, 50, 30)
+	p2.AxesColor = ui.ColorWhite
+	p2.LineColors[0] = ui.ColorCyan
+	p2.Type = widgets.ScatterPlot
+
+	p3 := widgets.NewPlot()
+	p3.Title = "braille-mode Scatter Plot"
+	p3.Data = make([][]float64, 2)
+	p3.Data[0] = []float64{1, 2, 3, 4, 5}
+	p3.Data[1] = sinData[1][4:]
+	p3.SetRect(45, 15, 80, 30)
+	p3.AxesColor = ui.ColorWhite
+	p3.LineColors[0] = ui.ColorCyan
+	p3.Marker = widgets.MarkerBraille
+	p3.Type = widgets.ScatterPlot
+
+	ui.Render(p0, p1, p2, p3)
+
+	uiEvents := ui.PollEvents()
+	for {
+		e := <-uiEvents
+		switch e.ID {
+		case "q", "<C-c>":
+			return
+		}
+	}
+}

go.mod

@@ -0,0 +1,8 @@
+module github.com/sqshq/plot-try
+
+require (
+	github.com/mattn/go-runewidth v0.0.4 // indirect
+	github.com/mitchellh/go-wordwrap v1.0.0 // indirect
+	github.com/sqshq/termui v0.0.0-20190125032456-731556c09f2c
+	gopkg.in/yaml.v2 v2.2.2
+)

go.sum

@@ -0,0 +1,19 @@
+github.com/google/pprof v0.0.0-20190109223431-e84dfd68c163/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
+github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
+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/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/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=
+golang.org/x/crypto v0.0.0-20190103213133-ff983b9c42bc/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
+golang.org/x/sys v0.0.0-20190116161447-11f53e031339/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=