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Alicia
2019-02-23 13:29:15 +00:00
commit c3d206c173
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213
vendor/github.com/boombuler/barcode/datamatrix/codelayout.go generated vendored Normal file
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package datamatrix
import (
"github.com/boombuler/barcode/utils"
"strconv"
)
type setValFunc func(byte)
type codeLayout struct {
matrix *utils.BitList
occupy *utils.BitList
size *dmCodeSize
}
func newCodeLayout(size *dmCodeSize) *codeLayout {
result := new(codeLayout)
result.matrix = utils.NewBitList(size.MatrixColumns() * size.MatrixRows())
result.occupy = utils.NewBitList(size.MatrixColumns() * size.MatrixRows())
result.size = size
return result
}
func (l *codeLayout) Occupied(row, col int) bool {
return l.occupy.GetBit(col + row*l.size.MatrixColumns())
}
func (l *codeLayout) Set(row, col int, value, bitNum byte) {
val := ((value >> (7 - bitNum)) & 1) == 1
if row < 0 {
row += l.size.MatrixRows()
col += 4 - ((l.size.MatrixRows() + 4) % 8)
}
if col < 0 {
col += l.size.MatrixColumns()
row += 4 - ((l.size.MatrixColumns() + 4) % 8)
}
if l.Occupied(row, col) {
panic("Field already occupied row: " + strconv.Itoa(row) + " col: " + strconv.Itoa(col))
}
l.occupy.SetBit(col+row*l.size.MatrixColumns(), true)
l.matrix.SetBit(col+row*l.size.MatrixColumns(), val)
}
func (l *codeLayout) SetSimple(row, col int, value byte) {
l.Set(row-2, col-2, value, 0)
l.Set(row-2, col-1, value, 1)
l.Set(row-1, col-2, value, 2)
l.Set(row-1, col-1, value, 3)
l.Set(row-1, col-0, value, 4)
l.Set(row-0, col-2, value, 5)
l.Set(row-0, col-1, value, 6)
l.Set(row-0, col-0, value, 7)
}
func (l *codeLayout) Corner1(value byte) {
l.Set(l.size.MatrixRows()-1, 0, value, 0)
l.Set(l.size.MatrixRows()-1, 1, value, 1)
l.Set(l.size.MatrixRows()-1, 2, value, 2)
l.Set(0, l.size.MatrixColumns()-2, value, 3)
l.Set(0, l.size.MatrixColumns()-1, value, 4)
l.Set(1, l.size.MatrixColumns()-1, value, 5)
l.Set(2, l.size.MatrixColumns()-1, value, 6)
l.Set(3, l.size.MatrixColumns()-1, value, 7)
}
func (l *codeLayout) Corner2(value byte) {
l.Set(l.size.MatrixRows()-3, 0, value, 0)
l.Set(l.size.MatrixRows()-2, 0, value, 1)
l.Set(l.size.MatrixRows()-1, 0, value, 2)
l.Set(0, l.size.MatrixColumns()-4, value, 3)
l.Set(0, l.size.MatrixColumns()-3, value, 4)
l.Set(0, l.size.MatrixColumns()-2, value, 5)
l.Set(0, l.size.MatrixColumns()-1, value, 6)
l.Set(1, l.size.MatrixColumns()-1, value, 7)
}
func (l *codeLayout) Corner3(value byte) {
l.Set(l.size.MatrixRows()-3, 0, value, 0)
l.Set(l.size.MatrixRows()-2, 0, value, 1)
l.Set(l.size.MatrixRows()-1, 0, value, 2)
l.Set(0, l.size.MatrixColumns()-2, value, 3)
l.Set(0, l.size.MatrixColumns()-1, value, 4)
l.Set(1, l.size.MatrixColumns()-1, value, 5)
l.Set(2, l.size.MatrixColumns()-1, value, 6)
l.Set(3, l.size.MatrixColumns()-1, value, 7)
}
func (l *codeLayout) Corner4(value byte) {
l.Set(l.size.MatrixRows()-1, 0, value, 0)
l.Set(l.size.MatrixRows()-1, l.size.MatrixColumns()-1, value, 1)
l.Set(0, l.size.MatrixColumns()-3, value, 2)
l.Set(0, l.size.MatrixColumns()-2, value, 3)
l.Set(0, l.size.MatrixColumns()-1, value, 4)
l.Set(1, l.size.MatrixColumns()-3, value, 5)
l.Set(1, l.size.MatrixColumns()-2, value, 6)
l.Set(1, l.size.MatrixColumns()-1, value, 7)
}
func (l *codeLayout) SetValues(data []byte) {
idx := 0
row := 4
col := 0
for (row < l.size.MatrixRows()) || (col < l.size.MatrixColumns()) {
if (row == l.size.MatrixRows()) && (col == 0) {
l.Corner1(data[idx])
idx++
}
if (row == l.size.MatrixRows()-2) && (col == 0) && (l.size.MatrixColumns()%4 != 0) {
l.Corner2(data[idx])
idx++
}
if (row == l.size.MatrixRows()-2) && (col == 0) && (l.size.MatrixColumns()%8 == 4) {
l.Corner3(data[idx])
idx++
}
if (row == l.size.MatrixRows()+4) && (col == 2) && (l.size.MatrixColumns()%8 == 0) {
l.Corner4(data[idx])
idx++
}
for true {
if (row < l.size.MatrixRows()) && (col >= 0) && !l.Occupied(row, col) {
l.SetSimple(row, col, data[idx])
idx++
}
row -= 2
col += 2
if (row < 0) || (col >= l.size.MatrixColumns()) {
break
}
}
row += 1
col += 3
for true {
if (row >= 0) && (col < l.size.MatrixColumns()) && !l.Occupied(row, col) {
l.SetSimple(row, col, data[idx])
idx++
}
row += 2
col -= 2
if (row >= l.size.MatrixRows()) || (col < 0) {
break
}
}
row += 3
col += 1
}
if !l.Occupied(l.size.MatrixRows()-1, l.size.MatrixColumns()-1) {
l.Set(l.size.MatrixRows()-1, l.size.MatrixColumns()-1, 255, 0)
l.Set(l.size.MatrixRows()-2, l.size.MatrixColumns()-2, 255, 0)
}
}
func (l *codeLayout) Merge() *datamatrixCode {
result := newDataMatrixCode(l.size)
//dotted horizontal lines
for r := 0; r < l.size.Rows; r += (l.size.RegionRows() + 2) {
for c := 0; c < l.size.Columns; c += 2 {
result.set(c, r, true)
}
}
//solid horizontal line
for r := l.size.RegionRows() + 1; r < l.size.Rows; r += (l.size.RegionRows() + 2) {
for c := 0; c < l.size.Columns; c++ {
result.set(c, r, true)
}
}
//dotted vertical lines
for c := l.size.RegionColumns() + 1; c < l.size.Columns; c += (l.size.RegionColumns() + 2) {
for r := 1; r < l.size.Rows; r += 2 {
result.set(c, r, true)
}
}
//solid vertical line
for c := 0; c < l.size.Columns; c += (l.size.RegionColumns() + 2) {
for r := 0; r < l.size.Rows; r++ {
result.set(c, r, true)
}
}
count := 0
for hRegion := 0; hRegion < l.size.RegionCountHorizontal; hRegion++ {
for vRegion := 0; vRegion < l.size.RegionCountVertical; vRegion++ {
for x := 0; x < l.size.RegionColumns(); x++ {
colMatrix := (l.size.RegionColumns() * hRegion) + x
colResult := ((2 + l.size.RegionColumns()) * hRegion) + x + 1
for y := 0; y < l.size.RegionRows(); y++ {
rowMatrix := (l.size.RegionRows() * vRegion) + y
rowResult := ((2 + l.size.RegionRows()) * vRegion) + y + 1
val := l.matrix.GetBit(colMatrix + rowMatrix*l.size.MatrixColumns())
if val {
count++
}
result.set(colResult, rowResult, val)
}
}
}
}
return result
}

73
vendor/github.com/boombuler/barcode/datamatrix/codesize.go generated vendored Normal file
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package datamatrix
type dmCodeSize struct {
Rows int
Columns int
RegionCountHorizontal int
RegionCountVertical int
ECCCount int
BlockCount int
}
func (s *dmCodeSize) RegionRows() int {
return (s.Rows - (s.RegionCountHorizontal * 2)) / s.RegionCountHorizontal
}
func (s *dmCodeSize) RegionColumns() int {
return (s.Columns - (s.RegionCountVertical * 2)) / s.RegionCountVertical
}
func (s *dmCodeSize) MatrixRows() int {
return s.RegionRows() * s.RegionCountHorizontal
}
func (s *dmCodeSize) MatrixColumns() int {
return s.RegionColumns() * s.RegionCountVertical
}
func (s *dmCodeSize) DataCodewords() int {
return ((s.MatrixColumns() * s.MatrixRows()) / 8) - s.ECCCount
}
func (s *dmCodeSize) DataCodewordsForBlock(idx int) int {
if s.Rows == 144 && s.Columns == 144 {
// Special Case...
if idx < 8 {
return 156
} else {
return 155
}
}
return s.DataCodewords() / s.BlockCount
}
func (s *dmCodeSize) ErrorCorrectionCodewordsPerBlock() int {
return s.ECCCount / s.BlockCount
}
var codeSizes []*dmCodeSize = []*dmCodeSize{
&dmCodeSize{10, 10, 1, 1, 5, 1},
&dmCodeSize{12, 12, 1, 1, 7, 1},
&dmCodeSize{14, 14, 1, 1, 10, 1},
&dmCodeSize{16, 16, 1, 1, 12, 1},
&dmCodeSize{18, 18, 1, 1, 14, 1},
&dmCodeSize{20, 20, 1, 1, 18, 1},
&dmCodeSize{22, 22, 1, 1, 20, 1},
&dmCodeSize{24, 24, 1, 1, 24, 1},
&dmCodeSize{26, 26, 1, 1, 28, 1},
&dmCodeSize{32, 32, 2, 2, 36, 1},
&dmCodeSize{36, 36, 2, 2, 42, 1},
&dmCodeSize{40, 40, 2, 2, 48, 1},
&dmCodeSize{44, 44, 2, 2, 56, 1},
&dmCodeSize{48, 48, 2, 2, 68, 1},
&dmCodeSize{52, 52, 2, 2, 84, 2},
&dmCodeSize{64, 64, 4, 4, 112, 2},
&dmCodeSize{72, 72, 4, 4, 144, 4},
&dmCodeSize{80, 80, 4, 4, 192, 4},
&dmCodeSize{88, 88, 4, 4, 224, 4},
&dmCodeSize{96, 96, 4, 4, 272, 4},
&dmCodeSize{104, 104, 4, 4, 336, 6},
&dmCodeSize{120, 120, 6, 6, 408, 6},
&dmCodeSize{132, 132, 6, 6, 496, 8},
&dmCodeSize{144, 144, 6, 6, 620, 10},
}

102
vendor/github.com/boombuler/barcode/datamatrix/datamatrix_test.go generated vendored Normal file
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package datamatrix
import (
"bytes"
"testing"
)
func codeFromStr(str string, size *dmCodeSize) *datamatrixCode {
code := newDataMatrixCode(size)
idx := 0
for _, r := range str {
x := idx % size.Columns
y := idx / size.Columns
switch r {
case '#':
code.set(x, y, true)
case '.':
code.set(x, y, false)
default:
continue
}
idx++
}
return code
}
func Test_Issue12(t *testing.T) {
data := `{"po":12,"batchAction":"start_end"}`
realData := addPadding(encodeText(data), 36)
wantedData := []byte{124, 35, 113, 112, 35, 59, 142, 45, 35, 99, 98, 117, 100, 105, 66, 100, 117, 106, 112, 111, 35, 59, 35, 116, 117, 98, 115, 117, 96, 102, 111, 101, 35, 126, 129, 181}
if bytes.Compare(realData, wantedData) != 0 {
t.Error("Data Encoding failed")
return
}
var codeSize *dmCodeSize
for _, s := range codeSizes {
if s.DataCodewords() >= len(wantedData) {
codeSize = s
break
}
}
realECC := ec.calcECC(realData, codeSize)[len(realData):]
wantedECC := []byte{196, 53, 147, 192, 151, 213, 107, 61, 98, 251, 50, 71, 186, 15, 43, 111, 165, 243, 209, 79, 128, 109, 251, 4}
if bytes.Compare(realECC, wantedECC) != 0 {
t.Errorf("Error correction calculation failed\nGot: %v", realECC)
return
}
barcode := `
#.#.#.#.#.#.#.#.#.#.#.#.
#....###..#..#....#...##
##.......#...#.#.#....#.
#.###...##..#...##.##..#
##...####..##..#.#.#.##.
#.###.##.###..#######.##
#..###...##.##..#.##.##.
#.#.#.#.#.#.###....#.#.#
##.#...#.#.#..#...#####.
#...####..#...##..#.#..#
##...#...##.###.#.....#.
#.###.#.##.#.....###..##
##..#####...#..##...###.
###...#.####.##.#.#.#..#
#..###..#.#.####.#.###..
###.#.#..#..#.###.#.##.#
#####.##.###..#.####.#..
#.##.#......#.#..#.#.###
###.#....######.#...##..
##...#..##.###..#...####
#.######.###.##..#...##.
#..#..#.##.#..####...#.#
###.###..#..##.#.##...#.
########################`
bc, err := Encode(data)
if err != nil {
t.Error(err)
return
}
realResult := bc.(*datamatrixCode)
if realResult.Columns != 24 || realResult.Rows != 24 {
t.Errorf("Got wrong barcode size %dx%d", realResult.Columns, realResult.Rows)
return
}
wantedResult := codeFromStr(barcode, realResult.dmCodeSize)
for x := 0; x < wantedResult.Columns; x++ {
for y := 0; y < wantedResult.Rows; y++ {
r := realResult.get(x, y)
w := wantedResult.get(x, y)
if w != r {
t.Errorf("Failed at: c%d/r%d", x, y)
}
}
}
}

50
vendor/github.com/boombuler/barcode/datamatrix/datamatrixcode.go generated vendored Normal file
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package datamatrix
import (
"image"
"image/color"
"github.com/boombuler/barcode"
"github.com/boombuler/barcode/utils"
)
type datamatrixCode struct {
*utils.BitList
*dmCodeSize
content string
}
func newDataMatrixCode(size *dmCodeSize) *datamatrixCode {
return &datamatrixCode{utils.NewBitList(size.Rows * size.Columns), size, ""}
}
func (c *datamatrixCode) Content() string {
return c.content
}
func (c *datamatrixCode) Metadata() barcode.Metadata {
return barcode.Metadata{barcode.TypeDataMatrix, 2}
}
func (c *datamatrixCode) ColorModel() color.Model {
return color.Gray16Model
}
func (c *datamatrixCode) Bounds() image.Rectangle {
return image.Rect(0, 0, c.Columns, c.Rows)
}
func (c *datamatrixCode) At(x, y int) color.Color {
if c.get(x, y) {
return color.Black
}
return color.White
}
func (c *datamatrixCode) get(x, y int) bool {
return c.GetBit(x*c.Rows + y)
}
func (c *datamatrixCode) set(x, y int, value bool) {
c.SetBit(x*c.Rows+y, value)
}

75
vendor/github.com/boombuler/barcode/datamatrix/encoder.go generated vendored Normal file
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// Package datamatrix can create Datamatrix barcodes
package datamatrix
import (
"errors"
"github.com/boombuler/barcode"
)
// Encode returns a Datamatrix barcode for the given content
func Encode(content string) (barcode.Barcode, error) {
data := encodeText(content)
var size *dmCodeSize
for _, s := range codeSizes {
if s.DataCodewords() >= len(data) {
size = s
break
}
}
if size == nil {
return nil, errors.New("to much data to encode")
}
data = addPadding(data, size.DataCodewords())
data = ec.calcECC(data, size)
code := render(data, size)
if code != nil {
code.content = content
return code, nil
}
return nil, errors.New("unable to render barcode")
}
func render(data []byte, size *dmCodeSize) *datamatrixCode {
cl := newCodeLayout(size)
cl.SetValues(data)
return cl.Merge()
}
func encodeText(content string) []byte {
var result []byte
input := []byte(content)
for i := 0; i < len(input); {
c := input[i]
i++
if c >= '0' && c <= '9' && i < len(input) && input[i] >= '0' && input[i] <= '9' {
// two numbers...
c2 := input[i]
i++
cw := byte(((c-'0')*10 + (c2 - '0')) + 130)
result = append(result, cw)
} else if c > 127 {
// not correct... needs to be redone later...
result = append(result, 235, c-127)
} else {
result = append(result, c+1)
}
}
return result
}
func addPadding(data []byte, toCount int) []byte {
if len(data) < toCount {
data = append(data, 129)
}
for len(data) < toCount {
R := ((149 * (len(data) + 1)) % 253) + 1
data = append(data, byte((129+R)%254))
}
return data
}

45
vendor/github.com/boombuler/barcode/datamatrix/errorcorrection.go generated vendored Normal file
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package datamatrix
import (
"github.com/boombuler/barcode/utils"
)
type errorCorrection struct {
rs *utils.ReedSolomonEncoder
}
var ec *errorCorrection = newErrorCorrection()
func newErrorCorrection() *errorCorrection {
gf := utils.NewGaloisField(301, 256, 1)
return &errorCorrection{utils.NewReedSolomonEncoder(gf)}
}
func (ec *errorCorrection) calcECC(data []byte, size *dmCodeSize) []byte {
dataSize := len(data)
// make some space for error correction codes
data = append(data, make([]byte, size.ECCCount)...)
for block := 0; block < size.BlockCount; block++ {
dataCnt := size.DataCodewordsForBlock(block)
buff := make([]int, dataCnt)
// copy the data for the current block to buff
j := 0
for i := block; i < dataSize; i += size.BlockCount {
buff[j] = int(data[i])
j++
}
// calc the error correction codes
ecc := ec.rs.Encode(buff, size.ErrorCorrectionCodewordsPerBlock())
// and append them to the result
j = 0
for i := block; i < size.ErrorCorrectionCodewordsPerBlock()*size.BlockCount; i += size.BlockCount {
data[dataSize+i] = byte(ecc[j])
j++
}
}
return data
}

28
vendor/github.com/boombuler/barcode/datamatrix/errorcorrection_test.go generated vendored Normal file
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package datamatrix
import (
"bytes"
"testing"
)
func Test_CalcECC(t *testing.T) {
data := []byte{142, 164, 186}
var size *dmCodeSize = nil
for _, s := range codeSizes {
if s.DataCodewords() >= len(data) {
size = s
break
}
}
if size == nil {
t.Error("size not found")
}
if bytes.Compare(ec.calcECC(data, size), []byte{142, 164, 186, 114, 25, 5, 88, 102}) != 0 {
t.Error("ECC Test 1 failed")
}
data = []byte{66, 129, 70}
if bytes.Compare(ec.calcECC(data, size), []byte{66, 129, 70, 138, 234, 82, 82, 95}) != 0 {
t.Error("ECC Test 2 failed")
}
}