@zxing/library
Version:
TypeScript port of ZXing multi-format 1D/2D barcode image processing library.
135 lines (134 loc) • 4.83 kB
JavaScript
/*
* Copyright 2008 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var __values = (this && this.__values) || function(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m) return m.call(o);
if (o && typeof o.length === "number") return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
/*namespace com.google.zxing.qrcode.encoder {*/
/*import java.util.Arrays;*/
import Arrays from '../../util/Arrays';
import StringBuilder from '../../util/StringBuilder';
/**
* JAVAPORT: The original code was a 2D array of ints, but since it only ever gets assigned
* -1, 0, and 1, I'm going to use less memory and go with bytes.
*
* @author dswitkin@google.com (Daniel Switkin)
*/
var ByteMatrix = /** @class */ (function () {
function ByteMatrix(width /*int*/, height /*int*/) {
this.width = width;
this.height = height;
var bytes = new Array(height); // [height][width]
for (var i = 0; i !== height; i++) {
bytes[i] = new Uint8Array(width);
}
this.bytes = bytes;
}
ByteMatrix.prototype.getHeight = function () {
return this.height;
};
ByteMatrix.prototype.getWidth = function () {
return this.width;
};
ByteMatrix.prototype.get = function (x /*int*/, y /*int*/) {
return this.bytes[y][x];
};
/**
* @return an internal representation as bytes, in row-major order. array[y][x] represents point (x,y)
*/
ByteMatrix.prototype.getArray = function () {
return this.bytes;
};
// TYPESCRIPTPORT: preffer to let two methods instead of override to avoid type comparison inside
ByteMatrix.prototype.setNumber = function (x /*int*/, y /*int*/, value /*byte|int*/) {
this.bytes[y][x] = value;
};
// public set(x: number /*int*/, y: number /*int*/, value: number /*int*/): void {
// bytes[y][x] = (byte) value
// }
ByteMatrix.prototype.setBoolean = function (x /*int*/, y /*int*/, value) {
this.bytes[y][x] = /*(byte) */ (value ? 1 : 0);
};
ByteMatrix.prototype.clear = function (value /*byte*/) {
var e_1, _a;
try {
for (var _b = __values(this.bytes), _c = _b.next(); !_c.done; _c = _b.next()) {
var aByte = _c.value;
Arrays.fill(aByte, value);
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
}
finally { if (e_1) throw e_1.error; }
}
};
ByteMatrix.prototype.equals = function (o) {
if (!(o instanceof ByteMatrix)) {
return false;
}
var other = o;
if (this.width !== other.width) {
return false;
}
if (this.height !== other.height) {
return false;
}
for (var y = 0, height = this.height; y < height; ++y) {
var bytesY = this.bytes[y];
var otherBytesY = other.bytes[y];
for (var x = 0, width = this.width; x < width; ++x) {
if (bytesY[x] !== otherBytesY[x]) {
return false;
}
}
}
return true;
};
/*@Override*/
ByteMatrix.prototype.toString = function () {
var result = new StringBuilder(); // (2 * width * height + 2)
for (var y = 0, height = this.height; y < height; ++y) {
var bytesY = this.bytes[y];
for (var x = 0, width = this.width; x < width; ++x) {
switch (bytesY[x]) {
case 0:
result.append(' 0');
break;
case 1:
result.append(' 1');
break;
default:
result.append(' ');
break;
}
}
result.append('\n');
}
return result.toString();
};
return ByteMatrix;
}());
export default ByteMatrix;