/*
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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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package com.zxing.scanner.decode;
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import android.os.Handler;
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import android.os.Looper;
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import android.util.Log;
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import com.google.zxing.BarcodeFormat;
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import com.google.zxing.DecodeHintType;
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import com.zxing.scanner.camera.CameraManager;
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import java.util.Collection;
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import java.util.EnumMap;
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import java.util.EnumSet;
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import java.util.Map;
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import java.util.concurrent.CountDownLatch;
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/**
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* This thread does all the heavy lifting of decoding the images.
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*
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* @author dswitkin@google.com (Daniel Switkin)
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*/
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public final class DecodeThread extends Thread {
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public static final String BARCODE_BITMAP = "barcode_bitmap";
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public static final String BARCODE_SCALED_FACTOR = "barcode_scaled_factor";
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private final CameraManager cameraManager;
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private final Handler scannerViewHandler;
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private final Map<DecodeHintType, Object> hints;
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private final CountDownLatch handlerInitLatch;
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private DecodeHandler handler;
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private boolean bundleThumbnail = false;
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public DecodeThread(CameraManager cameraManager, Handler scannerViewHandler,
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Collection<BarcodeFormat> decodeFormats, String characterSet
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, boolean bundleThumbnail) {
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this.cameraManager = cameraManager;
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this.scannerViewHandler = scannerViewHandler;
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this.bundleThumbnail = bundleThumbnail;
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handlerInitLatch = new CountDownLatch(1);
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hints = new EnumMap<>(DecodeHintType.class);
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// The prefs can't change while the thread is running, so pick them up
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// once here.
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if (decodeFormats == null || decodeFormats.isEmpty()) {
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decodeFormats = EnumSet.noneOf(BarcodeFormat.class);
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// 一维码：商品
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boolean decode1DProduct = true;
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if (decode1DProduct) {
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decodeFormats.addAll(DecodeFormatManager.PRODUCT_FORMATS);
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}
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// 一维码：工业
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boolean decode1DIndustrial = true;
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if (decode1DIndustrial) {
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decodeFormats.addAll(DecodeFormatManager.INDUSTRIAL_FORMATS);
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}
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// 二维码
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boolean decodeQR = true;
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if (decodeQR) {
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decodeFormats.addAll(DecodeFormatManager.QR_CODE_FORMATS);
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}
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// Data Matrix
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boolean decodeDataMatrix = true;
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if (decodeDataMatrix) {
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decodeFormats.addAll(DecodeFormatManager.DATA_MATRIX_FORMATS);
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}
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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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Log.i("DecodeThread", "Hints: " + hints);
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}
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public 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(cameraManager, scannerViewHandler, hints, bundleThumbnail);
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handlerInitLatch.countDown();
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Looper.loop();
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}
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}
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