test.go

package main

import (
	_ "image/gif"
	_ "image/jpeg"
	"log"

	"github.com/hennedo/escpos"

	"github.com/tarm/serial"
)

func main() {

	c := &serial.Config{Name: "/dev/ttyS1", Baud: 9600}
	socket, err := serial.OpenPort(c)
	if err != nil {
		log.Fatal(err)
	}
	defer socket.Close()

	p := escpos.New(socket)

	// add here:
	log.Println("setting config")
	p.SetConfig(escpos.ConfigEpsonTMT88II)

	// f, err := os.Open("./logo.gif")
	// if err != nil {
	// 	panic(err)
	// }
	// defer f.Close()

	// img, fmtName, err := image.Decode(f)

	// if err != nil {
	// 	panic(err)
	// }

	// log.Println(fmtName)
	// p.PrintImage(img)

	// p.LineFeed()
	log.Println("printing")

	p.Size(1, 1).Justify(escpos.JustifyCenter).Write("This is a test\n")
	p.Size(1, 1).Justify(escpos.JustifyCenter).Write("This is a test\n")
	p.Size(1, 1).Justify(escpos.JustifyCenter).Write("This is a test\n")
	p.Size(1, 1).Justify(escpos.JustifyCenter).Write("This is a test\n")

	p.LineFeed()

	p.Size(1, 1).Justify(escpos.JustifyLeft).Write("This is a test\n")
	p.Size(1, 1).Justify(escpos.JustifyLeft).Write("This is a test\n")
	p.Size(1, 1).Justify(escpos.JustifyLeft).Write("This is a test\n")
	p.Size(1, 1).Justify(escpos.JustifyLeft).Write("This is a test\n")

	p.LineFeed()
	p.Size(1, 1).Justify(escpos.JustifyRight).Write("This is a test\n")
	p.Size(1, 1).Justify(escpos.JustifyRight).Write("This is a test\n")
	p.Size(1, 1).Justify(escpos.JustifyRight).Write("This is a test\n")
	p.Size(1, 1).Justify(escpos.JustifyRight).Write("This is a test\n")

	p.LineFeed()
	p.QRCode("https://github.com/hennedo/escpos", true, 10, escpos.QRCodeErrorCorrectionLevelH)

	log.Println("printing")
	p.Print()

	p.LineFeed()
	p.Size(1, 1).Justify(escpos.JustifyRight).Write("This is a test\n")
	p.Size(1, 1).Justify(escpos.JustifyRight).Write("This is a test\n")
	p.Size(1, 1).Justify(escpos.JustifyRight).Write("This is a test\n")
	p.Size(1, 1).Justify(escpos.JustifyRight).Write("This is a test\n")

	// convert []byte to image for saving to file
	// img2, _, _ := image.Decode(bytes.NewReader(png))
	// p.PrintImage(img2)

	// p.WriteRaw([]byte{'\n'})
	// p.Write("megaclan3000 is love, megaclan3000 is life.")

	// p.Size(1, 1).Justify(escpos.JustifyCenter).Write("megaclan3000 is love, megaclan3000 is life")

	// You need to use either p.Print() or p.PrintAndCut() at the end to send the data to the printer.
	// var esc byte = 0x1B
	// var gs byte = 0x1D
	// p.WriteRaw([]byte{esc, 'm'})

	//Linefeed
	// p.WriteRaw([]byte{'\n'})

	// var cutters []byte = []byte{0x1D, 0x56, 0x42, 0xA}
	// p.WriteRaw(cutters)

	log.Println("cutting")
	p.PrintAndCut()
}