Malin/ZPLify
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This commit is contained in:
Simon Waldherr
2018-10-19 20:10:28 +02:00
parent ad1a2c79cf
commit 30005e0aa8
2 changed files with 15 additions and 13 deletions
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8
cmd/zplgfa/main.go
View File

@@ -1,7 +1,6 @@
package main
import (
"simonwaldherr.de/go/zplgfa"
"flag"
"fmt"
"github.com/anthonynsimon/bild/blur"
@@ -16,6 +15,7 @@ import (
"log"
"math"
"os"
"simonwaldherr.de/go/zplgfa"
"strings"
)
@@ -103,14 +103,14 @@ func main() {
fmt.Println(gfimg)
}
type ImageSet interface {
type imageSet interface {
Set(x, y int, c color.Color)
}
func editImageInvert(img image.Image) image.Image {
b := img.Bounds()
imgSet := img.(ImageSet)
imgSet := img.(imageSet)
for y := b.Min.Y; y < b.Max.Y; y++ {
for x := b.Min.X; x < b.Max.X; x++ {
oldPixel := img.At(x, y)
@@ -128,7 +128,7 @@ func editImageInvert(img image.Image) image.Image {
func editImageMonochrome(img image.Image) image.Image {
b := img.Bounds()
imgSet := img.(ImageSet)
imgSet := img.(imageSet)
for y := b.Min.Y; y < b.Max.Y; y++ {
for x := b.Min.X; x < b.Max.X; x++ {
oldPixel := img.At(x, y)

20
zplgfa.go
View File

@@ -9,6 +9,7 @@ import (
"strings"
)
// GraphicType is a type to select the graphic format
type GraphicType int
const (
@@ -18,11 +19,12 @@ const (
)
// ConvertToZPL is just a wrapper for ConvertToGraphicField which also includes the ZPL
// starting code ^XA and ending code ^XZ, as wall as a Field Separator and Field Origin.
// starting code ^XA and ending code ^XZ, as well as a Field Separator and Field Origin.
func ConvertToZPL(img image.Image, graphicType GraphicType) string {
return fmt.Sprintf("^XA,^FS\n^FO0,0\n%s^FS,^XZ\n", ConvertToGraphicField(img, graphicType))
}
// FlattenImage optimizes an image for the converting process
func FlattenImage(source image.Image) *image.NRGBA {
size := source.Bounds().Size()
background := color.White
@@ -40,7 +42,7 @@ func FlattenImage(source image.Image) *image.NRGBA {
func flatten(input color.Color, background color.Color) color.Color {
source := color.NRGBA64Model.Convert(input).(color.NRGBA64)
r, g, b, a := source.RGBA()
bg_r, bg_g, bg_b, _ := background.RGBA()
bgR, bgG, bgB, _ := background.RGBA()
alpha := float32(a) / 0xffff
conv := func(c uint32, bg uint32) uint8 {
val := 0xffff - uint32((float32(bg) * alpha))
@@ -48,9 +50,9 @@ func flatten(input color.Color, background color.Color) color.Color {
return uint8(val >> 8)
}
c := color.NRGBA{
conv(r, bg_r),
conv(g, bg_g),
conv(b, bg_b),
conv(r, bgR),
conv(g, bgG),
conv(b, bgB),
uint8(0xff),
}
return c
@@ -84,10 +86,10 @@ func getRepeatCode(repeatCount int, char string) string {
func compressASCII(in string) string {
in = strings.ToUpper(in)
var curChar string = ""
var lastChar string = ""
var lastCharSince int = 0
var output string = ""
var curChar string
var lastChar string
var lastCharSince int
var output string
var repCode string
for i := 0; i < len(in)+1; i++ {