ﾈｺと和解せよ

ReconcileWithCat.go

package main

import (
	"golang.org/x/image/draw"
	"golang.org/x/image/font"
	"golang.org/x/image/font/opentype"
	"golang.org/x/image/math/fixed"
	"image"
	"image/color"
	"image/jpeg"
	"io/ioutil"
	"log"
	"os"
)

const (
	width        = 360
	height       = 72
	startingDotX = 6
	startingDotY = 28
)

func drawMultiline(dest draw.Image, face font.Face, input string){
	d := font.Drawer{
		Dst:  dest,
		Src:  image.White,
		Face: face,
		Dot:  fixed.P(startingDotX, startingDotY),
	}
	for _, c := range input {
		if c=='\n'{
			d.Dot.X=startingDotX<<6
			d.Dot.Y+=32<<6
		}else if c=='\t'{
			d.Src = image.NewUniform(color.RGBA{R:255,G:241,B:0,A:0xff})
		}else{
			d.DrawString(string(c))
		}
	}
}

func main() {
	fontdata,_:=ioutil.ReadFile("Chalk-JP.otf")
	f, err := opentype.Parse(fontdata)
	if err != nil {
		log.Fatalf("Parse: %v", err)
	}
	face, err := opentype.NewFace(f, &opentype.FaceOptions{
		Size:    32,
		DPI:     72,
		Hinting: font.HintingNone,
	})
	if err != nil {
		log.Fatalf("NewFace: %v", err)
	}

	dst := image.NewRGBA(image.Rect(0, 0, width, height))
	drawMultiline(dst,face,"ﾈｺと和解せよ\n\tイエス・キリスト")

	pOutput, err := os.Create("./new.jpg")
	if err != nil {
		panic(err)
	}
	defer pOutput.Close()

	err = jpeg.Encode(pOutput, dst, &jpeg.Options{
		Quality:80,
	})
	if err != nil {
		panic(err)
	}

}