cc.wulian.smarthomev5.fragment.singin.handler.DecodeThread.java Source code

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Here is the source code for cc.wulian.smarthomev5.fragment.singin.handler.DecodeThread.java

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/*
 * Copyright (C) 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.
 */

package cc.wulian.smarthomev5.fragment.singin.handler;

import android.content.SharedPreferences;
import android.os.Handler;
import android.os.Looper;
import android.preference.PreferenceManager;
import android.support.v4.app.Fragment;
import android.util.Log;

import com.barcode.decode.CaptureActivity;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.DecodeHintType;
import com.google.zxing.ResultPointCallback;

import java.util.Collection;
import java.util.EnumMap;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.Map;
import java.util.Vector;
import java.util.concurrent.CountDownLatch;

import cc.wulian.smarthomev5.fragment.singin.IQRScanHandlerResult;
import cc.wulian.smarthomev5.fragment.singin.QRScanFragmentV5;

/**
 * This thread does all the heavy lifting of decoding the images.
 *
 * @author dswitkin@google.com (Daniel Switkin)
 */
final class DecodeThread extends Thread {

    public static final String BARCODE_BITMAP = "barcode_bitmap";
    public static final String BARCODE_SCALED_FACTOR = "barcode_scaled_factor";

    private final IQRScanHandlerResult scanHandlerResult;
    private final Hashtable<DecodeHintType, Object> hints;
    private Handler handler;
    private final CountDownLatch handlerInitLatch;

    public DecodeThread(IQRScanHandlerResult scanHandlerResult, Vector<BarcodeFormat> decodeFormats,
            String characterSet) {
        this.scanHandlerResult = scanHandlerResult;
        handlerInitLatch = new CountDownLatch(1);
        hints = new Hashtable<DecodeHintType, Object>(1);
        if (decodeFormats == null || decodeFormats.isEmpty()) {
            decodeFormats = new Vector<BarcodeFormat>();
            decodeFormats.addAll(DecodeFormatManager.PRODUCT_FORMATS);
            decodeFormats.addAll(DecodeFormatManager.INDUSTRIAL_FORMATS);
            decodeFormats.addAll(DecodeFormatManager.QR_CODE_FORMATS);
            decodeFormats.addAll(DecodeFormatManager.ONE_D_FORMATS);
            decodeFormats.addAll(DecodeFormatManager.DATA_MATRIX_FORMATS);
            decodeFormats.addAll(DecodeFormatManager.AZTEC_FORMATS);
            decodeFormats.addAll(DecodeFormatManager.PDF417_FORMATS);
        }
        hints.put(DecodeHintType.POSSIBLE_FORMATS, decodeFormats);
        if (characterSet != null) {
            hints.put(DecodeHintType.CHARACTER_SET, characterSet);
        }
    }

    public DecodeThread(IQRScanHandlerResult scanHandlerResult, Collection<BarcodeFormat> decodeFormats,
            Hashtable<DecodeHintType, ?> baseHints, String characterSet, ResultPointCallback resultPointCallback) {

        this.scanHandlerResult = scanHandlerResult;
        handlerInitLatch = new CountDownLatch(1);

        hints = new Hashtable<>();
        if (baseHints != null) {
            hints.putAll(baseHints);
        }

        // The prefs can't change while the thread is running, so pick them up once here.
        if (decodeFormats == null || decodeFormats.isEmpty()) {
            //      SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
            decodeFormats = EnumSet.noneOf(BarcodeFormat.class);
            //      if (prefs.getBoolean(PreferencesActivity.KEY_DECODE_1D_PRODUCT, true)) {
            //        decodeFormats.addAll(DecodeFormatManager.PRODUCT_FORMATS);
            //      }
            //      if (prefs.getBoolean(PreferencesActivity.KEY_DECODE_1D_INDUSTRIAL, true)) {
            //        decodeFormats.addAll(DecodeFormatManager.INDUSTRIAL_FORMATS);
            //      }
            //      if (prefs.getBoolean(PreferencesActivity.KEY_DECODE_QR, true)) {
            //        decodeFormats.addAll(DecodeFormatManager.QR_CODE_FORMATS);
            //      }
            //      if (prefs.getBoolean(PreferencesActivity.KEY_DECODE_DATA_MATRIX, true)) {
            //        decodeFormats.addAll(DecodeFormatManager.DATA_MATRIX_FORMATS);
            //      }
            //      if (prefs.getBoolean(PreferencesActivity.KEY_DECODE_AZTEC, false)) {
            //        decodeFormats.addAll(DecodeFormatManager.AZTEC_FORMATS);
            //      }
            //      if (prefs.getBoolean(PreferencesActivity.KEY_DECODE_PDF417, false)) {
            //        decodeFormats.addAll(DecodeFormatManager.PDF417_FORMATS);
            //      }
            decodeFormats.addAll(DecodeFormatManager.PRODUCT_FORMATS);
            decodeFormats.addAll(DecodeFormatManager.INDUSTRIAL_FORMATS);
            decodeFormats.addAll(DecodeFormatManager.QR_CODE_FORMATS);
            decodeFormats.addAll(DecodeFormatManager.DATA_MATRIX_FORMATS);
            decodeFormats.addAll(DecodeFormatManager.AZTEC_FORMATS);
            decodeFormats.addAll(DecodeFormatManager.PDF417_FORMATS);
        }
        hints.put(DecodeHintType.POSSIBLE_FORMATS, decodeFormats);

        if (characterSet != null) {
            hints.put(DecodeHintType.CHARACTER_SET, characterSet);
        }
        hints.put(DecodeHintType.NEED_RESULT_POINT_CALLBACK, resultPointCallback);
        Log.i("DecodeThread", "Hints: " + hints);
    }

    Handler getHandler() {
        try {
            handlerInitLatch.await();
        } catch (InterruptedException ie) {
            // continue?
        }
        return handler;
    }

    @Override
    public void run() {
        Looper.prepare();
        handler = new DecodeHandler(scanHandlerResult, hints);
        handlerInitLatch.countDown();
        Looper.loop();
    }

}