@progress/kendo-charts
Version:
Kendo UI platform-independent Charts library
92 lines (83 loc) • 2.42 kB
JavaScript
import { QRDataMode } from './qr-data-mode';
import { extend } from '../../utils';
import {
toBitsString,
splitInto
} from '../../utils';
export class AlphaNumericQRDataMode extends QRDataMode {
initProperties() {
super.initProperties();
extend(this, {
characters: {
"0": 0,
"1": 1,
"2": 2,
"3": 3,
"4": 4,
"5": 5,
"6": 6,
"7": 7,
"8": 8,
"9": 9,
"A": 10,
"B": 11,
"C": 12,
"D": 13,
"E": 14,
"F": 15,
"G": 16,
"H": 17,
"I": 18,
"J": 19,
"K": 20,
"L": 21,
"M": 22,
"N": 23,
"O": 24,
"P": 25,
"Q": 26,
"R": 27,
"S": 28,
"T": 29,
"U": 30,
"V": 31,
"W": 32,
"X": 33,
"Y": 34,
"Z": 35,
" ": 36,
"$": 37,
"%": 38,
"*": 39,
"+": 40,
"-": 41,
".": 42,
"/": 43,
":": 44
},
bitsInCharacterCount: [9, 11, 13],
modeIndicator: "0010"
});
}
getValue(character) {
return this.characters[character];
}
encode(str, version) {
let
parts = splitInto(str, 2),
result = this.getModeCountString(str.length, version),
value;
let i;
for (i = 0; i < parts.length - 1; i++) {
value = 45 * this.getValue(parts[i].charAt(0)) + this.getValue(parts[i].charAt(1));
result += toBitsString(value, 11);
}
value = parts[i].length === 2 ?
45 * this.getValue(parts[i].charAt(0)) + this.getValue(parts[i].charAt(1)) :
this.getValue(parts[i].charAt(0));
return result + toBitsString(value, 1 + 5 * parts[i].length);
}
getStringBitsLength(inputLength, version) {
return 4 + this.getBitsCharacterCount(version) + 11 * Math.floor(inputLength / 2) + 6 * (inputLength % 2);
}
}