/*
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* Copyright 2013 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// package com.google.zxing.pdf417.decoder;
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// import java.util.Formatter;
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import Formatter from '../../util/Formatter';
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import BoundingBox from './BoundingBox';
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/**
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* @author Guenther Grau
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*/
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export default class DetectionResultColumn {
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constructor(boundingBox) {
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this.boundingBox = new BoundingBox(boundingBox);
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// this.codewords = new Codeword[boundingBox.getMaxY() - boundingBox.getMinY() + 1];
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this.codewords = new Array(boundingBox.getMaxY() - boundingBox.getMinY() + 1);
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}
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/*final*/ getCodewordNearby(imageRow) {
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let codeword = this.getCodeword(imageRow);
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if (codeword != null) {
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return codeword;
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}
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for (let i = 1; i < DetectionResultColumn.MAX_NEARBY_DISTANCE; i++) {
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let nearImageRow = this.imageRowToCodewordIndex(imageRow) - i;
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if (nearImageRow >= 0) {
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codeword = this.codewords[nearImageRow];
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if (codeword != null) {
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return codeword;
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}
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}
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nearImageRow = this.imageRowToCodewordIndex(imageRow) + i;
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if (nearImageRow < this.codewords.length) {
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codeword = this.codewords[nearImageRow];
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if (codeword != null) {
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return codeword;
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}
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}
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}
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return null;
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}
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/*final int*/ imageRowToCodewordIndex(imageRow) {
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return imageRow - this.boundingBox.getMinY();
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}
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/*final void*/ setCodeword(imageRow, codeword) {
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this.codewords[this.imageRowToCodewordIndex(imageRow)] = codeword;
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}
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/*final*/ getCodeword(imageRow) {
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return this.codewords[this.imageRowToCodewordIndex(imageRow)];
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}
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/*final*/ getBoundingBox() {
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return this.boundingBox;
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}
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/*final*/ getCodewords() {
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return this.codewords;
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}
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// @Override
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toString() {
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const formatter = new Formatter();
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let row = 0;
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for (const codeword of this.codewords) {
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if (codeword == null) {
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formatter.format('%3d: | %n', row++);
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continue;
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}
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formatter.format('%3d: %3d|%3d%n', row++, codeword.getRowNumber(), codeword.getValue());
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}
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return formatter.toString();
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}
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}
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DetectionResultColumn.MAX_NEARBY_DISTANCE = 5;
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