fopix

Simple monospaced pixel font package for golang

Partly idea taken from: pixfont

Installation

go get github.com/toelsiba/fopix

Fonts

Font files are available in the directory fonts. Fonts is saved in JSON format.

Digits 3x3

Digits 3x4

Digits 3x5

3x3 Font for Nerds

Victor

Miniwi

Tom Thumb

Tom Thumb New

Pixefon

VGA CP437

Examples

using existing font

package main

import (
	"image"
	"log"

	"github.com/toelsiba/fopix"
	"github.com/toelsiba/fopix/imutil"
)

func checkError(err error) {
	if err != nil {
		log.Fatal(err)
	}
}

func main() {

	filename := "../../fonts/tom-thumb-new.json"

	var fi fopix.FontInfo
	err := fopix.ReadFileJSON(filename, &fi)
	checkError(err)

	d, err := fopix.NewDrawer(fi)
	checkError(err)

	d.SetScale(5)

	text := "Hello, World!"

	m := image.NewRGBA(d.TextBounds(text))

	d.DrawText(m, image.ZP, text)

	err = imutil.ImageSaveToPNG("hello-world.png", m)
	checkError(err)
}

Result image

using custom font

package main

import (
	"image"
	"image/color"
	"log"

	"github.com/toelsiba/fopix"
	"github.com/toelsiba/fopix/imutil"
)

// custom font
var gopherFont = fopix.FontInfo{
	Name:        "Go font",
	Author:      "Gopher",
	Description: "something ...",
	Size:        fopix.Point{X: 6, Y: 7},
	AnchorPos:   fopix.Point{X: 0, Y: 0},
	TargetChar:  '0',
	CharSet: []fopix.RuneInfo{
		fopix.RuneInfo{
			Character: 'G',
			Bitmap: []string{
				"-000-",
				"0---0",
				"0----",
				"0-000",
				"0---0",
				"-000-",
			},
		},
		fopix.RuneInfo{
			Character: 'o',
			Bitmap: []string{
				"-----",
				"-----",
				"-000-",
				"0---0",
				"0---0",
				"-000-",
			},
		},
	},
}

func checkError(err error) {
	if err != nil {
		log.Fatal(err)
	}
}

func main() {

	d, err := fopix.NewDrawer(gopherFont)
	checkError(err)

	d.SetScale(10)
	d.SetColor(color.RGBA{0, 0, 0xFF, 0xFF})

	text := "Go"

	m := image.NewRGBA(d.TextBounds(text))

	imutil.ImageSolidFill(m, color.White)

	d.DrawText(m, image.ZP, text)

	err = imutil.ImageSaveToPNG("go-font.png", m)
	checkError(err)
}