screenplot.go

// For fun.. Plot to the screen

package main

import (
	"fmt"
	"image"
	"image/color"
	"image/draw"
	ui "github.com/gizak/termui/v3"
	"github.com/gizak/termui/v3/widgets"
)

func breaker(x interface{}) {}
func scrnPlt(pi, stdErr []float32) error {
	nrmlStyle := ui.NewStyle (ui.ColorBlack, ui.ColorClear)
//	invisStyle := ui.NewStyle (ui.ColorClear, ui.ColorClear)
	thm := ui.Theme
	thm.Block.Title = nrmlStyle
	thm.Plot.Axes = ui.ColorBlack

	thm.Default = ui.NewStyle(ui.ColorBlack, ui.ColorClear)
	thm.Block.Border = nrmlStyle

	ui.Theme = thm

	ptxt := widgets.NewParagraph()

	for i := 0; i < 24; i++ {
		for j := 0; j < 800; j++ { 
			ptxt.Text += "."
		}
		ptxt.Text += " \n"
	}
	
	ptxt.SetRect(0, 0, 80, 24)
	ptxt.TextStyle = ui.NewStyle(ui.ColorWhite, ui.ColorWhite)
	p1 := widgets.NewPlot()

	p1.Title = "π"
	{
		data := make([][]float64, 2)
		data[0] = make([]float64, len(pi))
		data[1] = make([]float64, len(pi))
		for i := range pi {
			data[0][i] = float64(i + 1)
			data[1][i] = float64(pi[i])
		}
		p1.Data = data
	}

	p1.SetRect(2, 2, 80, 24)
	p1.Block.TitleStyle = nrmlStyle
	p1.AxesColor = ui.ColorBlack
//	p1.LineColors = []ui.Color{ui.ColorBlack, ui.ColorBlack}
	p1.SetRect (0, 0, 80, 24)
	p1.Marker = widgets.MarkerBraille
	p1.PlotType = widgets.ScatterPlot
	p1.Border = false
	
	breaker(thm)
	
	m := image.NewRGBA(image.Rect(0, 0, 80, 24))

	//	draw.Draw(m, m.Bounds(), &image.Uniform{color.White}, image.ZP, draw.Src)
	draw.Draw(m, m.Bounds(), &image.Uniform{color.White}, image.ZP, draw.Src)
	img := widgets.NewImage(m)
	img.SetRect(0, 0, 100, 50)

	defer  fmt.Println ("m bounds", m.Bounds())

	if err := ui.Init(); err != nil {
		return err
	}


	defer ui.Close()

	ui.Render(img, ptxt, p1)
	for e := range ui.PollEvents() {
		if e.Type == ui.KeyboardEvent {
			break
		}
	}
	return nil
}