Add support for Aztec barcodes (#101)

* Add RegisterAztec

* Add test for RegisterAztec

2 files changed, 23 insertions, 0 deletions

diff --git a/contrib/barcode/barcode.go b/contrib/barcode/barcode.go
index 0649564..63a4908 100644
--- a/contrib/barcode/barcode.go
+++ b/contrib/barcode/barcode.go
@@ -21,6 +21,7 @@ import (
 	"bytes"
 	"errors"
 	"github.com/boombuler/barcode"
+	"github.com/boombuler/barcode/aztec"
 	"github.com/boombuler/barcode/codabar"
 	"github.com/boombuler/barcode/code128"
 	"github.com/boombuler/barcode/code39"
@@ -110,6 +111,15 @@ func Register(bcode barcode.Barcode) string {
 	return key
 }
 
+// RegisterAztec registers a barcode of type Aztec to the PDF, but not to
+// the page. Use Barcode() with the return value to put the barcode on the page.
+// code is the string to be encoded. minECCPercent is the error correction percentage. 33 is the default.
+// userSpecifiedLayers can be a value between -4 and 32 inclusive.
+func RegisterAztec(pdf barcodePdf, code string, minECCPercent int, userSpecifiedLayers int) string {
+	bcode, err := aztec.Encode([]byte(code), minECCPercent, userSpecifiedLayers)
+	return registerBarcode(pdf, bcode, err)
+}
+
 // RegisterCodabar registers a barcode of type Codabar to the PDF, but not to
 // the page. Use Barcode() with the return value to put the barcode on the page.
 func RegisterCodabar(pdf barcodePdf, code string) string {
diff --git a/contrib/barcode/barcode_test.go b/contrib/barcode/barcode_test.go
index f2c57f1..c3c648c 100644
--- a/contrib/barcode/barcode_test.go
+++ b/contrib/barcode/barcode_test.go
@@ -47,6 +47,19 @@ func ExampleRegisterCodabar() {
 	// Successfully generated ../../pdf/contrib_barcode_RegisterCodabar.pdf
 }
 
+func ExampleRegisterAztec() {
+	pdf := createPdf()
+
+	key := barcode.RegisterAztec(pdf, "aztec", 33, 0)
+	barcode.Barcode(pdf, key, 15, 15, 100, 100, false)
+
+	fileStr := example.Filename("contrib_barcode_RegisterAztec")
+	err := pdf.OutputFileAndClose(fileStr)
+	example.Summary(err, fileStr)
+	// Output:
+	// Successfully generated ../../pdf/contrib_barcode_RegisterAztec.pdf
+}
+
 func ExampleRegisterCode128() {
 	pdf := createPdf()