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package com.geogle.zxing.decoding;/*
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* Copyright (C) 2008 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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import android.os.Handler;
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import android.os.Looper;
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import com.google.zxing.BarcodeFormat;
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import com.google.zxing.DecodeHintType;
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import com.google.zxing.ResultPointCallback;
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import java.util.Hashtable;
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import java.util.Vector;
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import java.util.concurrent.CountDownLatch;
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import com.geogle.zxing.activity.CaptureActivity;
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/**
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* This thread does all the heavy lifting of decoding the images.
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* <20><><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>
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*/
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final class DecodeThread extends Thread {
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public static final String BARCODE_BITMAP = "barcode_bitmap";
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private final CaptureActivity activity;
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private final Hashtable<DecodeHintType, Object> hints;
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private Handler handler;
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private final CountDownLatch handlerInitLatch;
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DecodeThread(CaptureActivity activity,
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Vector<BarcodeFormat> decodeFormats,
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String characterSet,
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ResultPointCallback resultPointCallback) {
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this.activity = activity;
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handlerInitLatch = new CountDownLatch(1);
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hints = new Hashtable<DecodeHintType, Object>(3);
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if (decodeFormats == null || decodeFormats.isEmpty()) {
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decodeFormats = new Vector<BarcodeFormat>();
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decodeFormats.addAll(DecodeFormatManager.ONE_D_FORMATS);
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decodeFormats.addAll(DecodeFormatManager.QR_CODE_FORMATS);
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decodeFormats.addAll(DecodeFormatManager.DATA_MATRIX_FORMATS);
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}
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hints.put(DecodeHintType.POSSIBLE_FORMATS, decodeFormats);
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if (characterSet != null) {
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hints.put(DecodeHintType.CHARACTER_SET, characterSet);
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}
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hints.put(DecodeHintType.NEED_RESULT_POINT_CALLBACK, resultPointCallback);
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}
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Handler getHandler() {
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try {
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handlerInitLatch.await();
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} catch (InterruptedException ie) {
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// continue?
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}
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return handler;
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}
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@Override
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public void run() {
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Looper.prepare();
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handler = new DecodeHandler(activity, hints);
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handlerInitLatch.countDown();
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Looper.loop();
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}
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}
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