1- " use strict" ;
1+ ' use strict' ;
22
33Object . defineProperty ( exports , "__esModule" , {
44 value : true
55} ) ;
66
77var _createClass = function ( ) { function defineProperties ( target , props ) { for ( var i = 0 ; i < props . length ; i ++ ) { var descriptor = props [ i ] ; descriptor . enumerable = descriptor . enumerable || false ; descriptor . configurable = true ; if ( "value" in descriptor ) descriptor . writable = true ; Object . defineProperty ( target , descriptor . key , descriptor ) ; } } return function ( Constructor , protoProps , staticProps ) { if ( protoProps ) defineProperties ( Constructor . prototype , protoProps ) ; if ( staticProps ) defineProperties ( Constructor , staticProps ) ; return Constructor ; } ; } ( ) ;
88
9- var _ean_encoder = require ( "./ean_encoder.js" ) ;
9+ var _get = function get ( object , property , receiver ) { if ( object === null ) object = Function . prototype ; var desc = Object . getOwnPropertyDescriptor ( object , property ) ; if ( desc === undefined ) { var parent = Object . getPrototypeOf ( object ) ; if ( parent === null ) { return undefined ; } else { return get ( parent , property , receiver ) ; } } else if ( "value" in desc ) { return desc . value ; } else { var getter = desc . get ; if ( getter === undefined ) { return undefined ; } return getter . call ( receiver ) ; } } ;
1010
11- var _ean_encoder2 = _interopRequireDefault ( _ean_encoder ) ;
11+ var _constants = require ( './constants' ) ;
1212
13- var _Barcode2 = require ( "../Barcode.js" ) ;
13+ var _EAN2 = require ( './EAN' ) ;
1414
15- var _Barcode3 = _interopRequireDefault ( _Barcode2 ) ;
15+ var _EAN3 = _interopRequireDefault ( _EAN2 ) ;
1616
1717function _interopRequireDefault ( obj ) { return obj && obj . __esModule ? obj : { default : obj } ; }
1818
@@ -23,8 +23,20 @@ function _possibleConstructorReturn(self, call) { if (!self) { throw new Referen
2323function _inherits ( subClass , superClass ) { if ( typeof superClass !== "function" && superClass !== null ) { throw new TypeError ( "Super expression must either be null or a function, not " + typeof superClass ) ; } subClass . prototype = Object . create ( superClass && superClass . prototype , { constructor : { value : subClass , enumerable : false , writable : true , configurable : true } } ) ; if ( superClass ) Object . setPrototypeOf ? Object . setPrototypeOf ( subClass , superClass ) : subClass . __proto__ = superClass ; } // Encoding documentation:
2424// https://en.wikipedia.org/wiki/International_Article_Number_(EAN)#Binary_encoding_of_data_digits_into_EAN-13_barcode
2525
26- var EAN13 = function ( _Barcode ) {
27- _inherits ( EAN13 , _Barcode ) ;
26+ // Calculate the checksum digit
27+ // https://en.wikipedia.org/wiki/International_Article_Number_(EAN)#Calculation_of_checksum_digit
28+ var checksum = function checksum ( number ) {
29+ var res = number . substr ( 0 , 12 ) . split ( '' ) . map ( function ( n ) {
30+ return + n ;
31+ } ) . reduce ( function ( sum , a , idx ) {
32+ return idx % 2 ? sum + a * 3 : sum + a ;
33+ } , 0 ) ;
34+
35+ return ( 10 - res % 10 ) % 10 ;
36+ } ;
37+
38+ var EAN13 = function ( _EAN ) {
39+ _inherits ( EAN13 , _EAN ) ;
2840
2941 function EAN13 ( data , options ) {
3042 _classCallCheck ( this , EAN13 ) ;
@@ -34,154 +46,74 @@ var EAN13 = function (_Barcode) {
3446 data += checksum ( data ) ;
3547 }
3648
37- // Make sure the font is not bigger than the space between the guard bars
49+ // Adds a last character to the end of the barcode
3850 var _this = _possibleConstructorReturn ( this , ( EAN13 . __proto__ || Object . getPrototypeOf ( EAN13 ) ) . call ( this , data , options ) ) ;
3951
40- if ( ! options . flat && options . fontSize > options . width * 10 ) {
41- _this . fontSize = options . width * 10 ;
42- } else {
43- _this . fontSize = options . fontSize ;
44- }
45-
46- // Make the guard bars go down half the way of the text
47- _this . guardHeight = options . height + _this . fontSize / 2 + options . textMargin ;
48-
49- // Adds a last character to the end of the barcode
5052 _this . lastChar = options . lastChar ;
5153 return _this ;
5254 }
5355
5456 _createClass ( EAN13 , [ {
55- key : " valid" ,
57+ key : ' valid' ,
5658 value : function valid ( ) {
57- return this . data . search ( / ^ [ 0 - 9 ] { 13 } $ / ) !== - 1 && this . data [ 12 ] == checksum ( this . data ) ;
59+ return this . data . search ( / ^ [ 0 - 9 ] { 13 } $ / ) !== - 1 && + this . data [ 12 ] = ==checksum ( this . data ) ;
5860 }
5961 } , {
60- key : "encode" ,
61- value : function encode ( ) {
62- if ( this . options . flat ) {
63- return this . flatEncoding ( ) ;
64- } else {
65- return this . guardedEncoding ( ) ;
66- }
62+ key : 'leftText' ,
63+ value : function leftText ( ) {
64+ return _get ( EAN13 . prototype . __proto__ || Object . getPrototypeOf ( EAN13 . prototype ) , 'leftText' , this ) . call ( this , 1 , 6 ) ;
65+ }
66+ } , {
67+ key : 'leftEncode' ,
68+ value : function leftEncode ( ) {
69+ var data = this . data . substr ( 1 , 6 ) ;
70+ var structure = _constants . EAN13_STRUCTURE [ this . data [ 0 ] ] ;
71+ return _get ( EAN13 . prototype . __proto__ || Object . getPrototypeOf ( EAN13 . prototype ) , 'leftEncode' , this ) . call ( this , data , structure ) ;
72+ }
73+ } , {
74+ key : 'rightText' ,
75+ value : function rightText ( ) {
76+ return _get ( EAN13 . prototype . __proto__ || Object . getPrototypeOf ( EAN13 . prototype ) , 'rightText' , this ) . call ( this , 7 , 6 ) ;
6777 }
68-
69- // Define the EAN-13 structure
70-
7178 } , {
72- key : "getStructure" ,
73- value : function getStructure ( ) {
74- return [ "LLLLLL" , "LLGLGG" , "LLGGLG" , "LLGGGL" , "LGLLGG" , "LGGLLG" , "LGGGLL" , "LGLGLG" , "LGLGGL" , "LGGLGL" ] ;
79+ key : 'rightEncode' ,
80+ value : function rightEncode ( ) {
81+ var data = this . data . substr ( 7 , 6 ) ;
82+ return _get ( EAN13 . prototype . __proto__ || Object . getPrototypeOf ( EAN13 . prototype ) , 'rightEncode' , this ) . call ( this , data , 'RRRRRR' ) ;
7583 }
7684
7785 // The "standard" way of printing EAN13 barcodes with guard bars
7886
7987 } , {
80- key : "guardedEncoding" ,
81- value : function guardedEncoding ( ) {
82- var encoder = new _ean_encoder2 . default ( ) ;
83- var result = [ ] ;
84-
85- var structure = this . getStructure ( ) [ this . data [ 0 ] ] ;
88+ key : 'encodeGuarded' ,
89+ value : function encodeGuarded ( ) {
90+ var data = _get ( EAN13 . prototype . __proto__ || Object . getPrototypeOf ( EAN13 . prototype ) , 'encodeGuarded' , this ) . call ( this ) ;
8691
87- // Get the string to be encoded on the left side of the EAN code
88- var leftSide = this . data . substr ( 1 , 6 ) ;
89-
90- // Get the string to be encoded on the right side of the EAN code
91- var rightSide = this . data . substr ( 7 , 6 ) ;
92-
93- // Add the first digigt
92+ // Extend data with left digit & last character
9493 if ( this . options . displayValue ) {
95- result . push ( {
96- data : " 000000000000" ,
94+ data . unshift ( {
95+ data : ' 000000000000' ,
9796 text : this . text . substr ( 0 , 1 ) ,
98- options : { textAlign : " left" , fontSize : this . fontSize }
97+ options : { textAlign : ' left' , fontSize : this . fontSize }
9998 } ) ;
100- }
10199
102- // Add the guard bars
103- result . push ( {
104- data : "101" ,
105- options : { height : this . guardHeight }
106- } ) ;
107-
108- // Add the left side
109- result . push ( {
110- data : encoder . encode ( leftSide , structure ) ,
111- text : this . text . substr ( 1 , 6 ) ,
112- options : { fontSize : this . fontSize }
113- } ) ;
114-
115- // Add the middle bits
116- result . push ( {
117- data : "01010" ,
118- options : { height : this . guardHeight }
119- } ) ;
120-
121- // Add the right side
122- result . push ( {
123- data : encoder . encode ( rightSide , "RRRRRR" ) ,
124- text : this . text . substr ( 7 , 6 ) ,
125- options : { fontSize : this . fontSize }
126- } ) ;
127-
128- // Add the end bits
129- result . push ( {
130- data : "101" ,
131- options : { height : this . guardHeight }
132- } ) ;
133-
134- if ( this . options . lastChar && this . options . displayValue ) {
135- result . push ( { data : "00" } ) ;
136-
137- result . push ( {
138- data : "00000" ,
139- text : this . options . lastChar ,
140- options : { fontSize : this . fontSize }
141- } ) ;
100+ if ( this . options . lastChar ) {
101+ data . push ( {
102+ data : '00'
103+ } ) ;
104+ data . push ( {
105+ data : '00000' ,
106+ text : this . options . lastChar ,
107+ options : { fontSize : this . fontSize }
108+ } ) ;
109+ }
142110 }
143- return result ;
144- }
145- } , {
146- key : "flatEncoding" ,
147- value : function flatEncoding ( ) {
148- var encoder = new _ean_encoder2 . default ( ) ;
149- var result = "" ;
150-
151- var structure = this . getStructure ( ) [ this . data [ 0 ] ] ;
152-
153- result += "101" ;
154- result += encoder . encode ( this . data . substr ( 1 , 6 ) , structure ) ;
155- result += "01010" ;
156- result += encoder . encode ( this . data . substr ( 7 , 6 ) , "RRRRRR" ) ;
157- result += "101" ;
158-
159- return {
160- data : result ,
161- text : this . text
162- } ;
111+
112+ return data ;
163113 }
164114 } ] ) ;
165115
166116 return EAN13 ;
167- } ( _Barcode3 . default ) ;
168-
169- // Calulate the checksum digit
170- // https://en.wikipedia.org/wiki/International_Article_Number_(EAN)#Calculation_of_checksum_digit
171-
172-
173- function checksum ( number ) {
174- var result = 0 ;
175-
176- var i ;
177- for ( i = 0 ; i < 12 ; i += 2 ) {
178- result += parseInt ( number [ i ] ) ;
179- }
180- for ( i = 1 ; i < 12 ; i += 2 ) {
181- result += parseInt ( number [ i ] ) * 3 ;
182- }
183-
184- return ( 10 - result % 10 ) % 10 ;
185- }
117+ } ( _EAN3 . default ) ;
186118
187119exports . default = EAN13 ;
0 commit comments