/* * Copyright (C) 2010 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. */ /* * These authors would like to acknowledge the Spanish Ministry of Industry, * Tourism and Trade, for the support in the project TSI020301-2008-2 * "PIRAmIDE: Personalizable Interactions with Resources on AmI-enabled * Mobile Dynamic Environments", led by Treelogic * ( http://www.treelogic.com/ ): * * http://www.piramidepse.com/ */ package com.google.zxing.oned.rss.expanded; import com.google.zxing.oned.rss.DataCharacter; import com.google.zxing.oned.rss.FinderPattern; /** * @author Pablo Orduña, University of Deusto ([email protected]) */ final class ExpandedPair { private final boolean mayBeLast; private final DataCharacter leftChar; private final DataCharacter rightChar; private final FinderPattern finderPattern; ExpandedPair(DataCharacter leftChar, DataCharacter rightChar, FinderPattern finderPattern, boolean mayBeLast) { this.leftChar = leftChar; this.rightChar = rightChar; this.finderPattern = finderPattern; this.mayBeLast = mayBeLast; } boolean mayBeLast() { return this.mayBeLast; } DataCharacter getLeftChar() { return this.leftChar; } DataCharacter getRightChar() { return this.rightChar; } FinderPattern getFinderPattern() { return this.finderPattern; } public boolean mustBeLast() { return this.rightChar == null; } @Override public String toString() { return "[ " + leftChar + " , " + rightChar + " : " + (finderPattern == null ? "null" : finderPattern.getValue()) + " ]"; } @Override public boolean equals(Object o) { if (!(o instanceof ExpandedPair)) { return false; } ExpandedPair that = (ExpandedPair) o; return equalsOrNull(leftChar, that.leftChar) && equalsOrNull(rightChar, that.rightChar) && equalsOrNull(finderPattern, that.finderPattern); } private static boolean equalsOrNull(Object o1, Object o2) { return o1 == null ? o2 == null : o1.equals(o2); } @Override public int hashCode() { return hashNotNull(leftChar) ^ hashNotNull(rightChar) ^ hashNotNull(finderPattern); } private static int hashNotNull(Object o) { return o == null ? 0 : o.hashCode(); } }