edu.sfsu.cs.orange.ocr.language.TranslateAsyncTask.java Source code

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Here is the source code for edu.sfsu.cs.orange.ocr.language.TranslateAsyncTask.java

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/*
 * Copyright 2011 Robert Theis
 *
 * 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 edu.sfsu.cs.orange.ocr.language;

import org.apache.http.Header;
import org.json.simple.JSONObject;

import com.loopj.android.http.AsyncHttpClient;
import com.loopj.android.http.AsyncHttpResponseHandler;
import com.loopj.android.http.JsonHttpResponseHandler;
import com.loopj.android.http.RequestParams;

import edu.sfsu.cs.orange.ocr.CaptureActivity;
import edu.sfsu.cs.orange.ocr.R;
import android.annotation.SuppressLint;
import android.graphics.Typeface;
import android.os.AsyncTask;
import android.util.Log;
import android.util.TypedValue;
import android.view.View;
import android.widget.TextView;
//----------------

//-----------------
/**
 * Class to perform translations in the background.
 */
public final class TranslateAsyncTask extends AsyncTask<String, String, Boolean> {

    private static final String TAG = TranslateAsyncTask.class.getSimpleName();

    private CaptureActivity activity;
    private TextView textView;
    private View progressView;
    private TextView targetLanguageTextView;
    private String sourceLanguageCode;
    private String targetLanguageCode;
    private String sourceText;
    private String translatedText = "";

    public TranslateAsyncTask(CaptureActivity activity, String sourceLanguageCode, String targetLanguageCode,
            String sourceText) {
        this.activity = activity;
        this.sourceLanguageCode = sourceLanguageCode;
        this.targetLanguageCode = targetLanguageCode;
        this.sourceText = sourceText;
        textView = (TextView) activity.findViewById(R.id.translation_text_view);
        progressView = (View) activity.findViewById(R.id.indeterminate_progress_indicator_view);
        targetLanguageTextView = (TextView) activity.findViewById(R.id.translation_language_text_view);
    }

    //-----
    @SuppressLint("NewApi")
    //----------------------------------------------------------------
    @Override
    protected Boolean doInBackground(String... arg0) {
        translatedText = Translator.translate(activity, sourceLanguageCode, targetLanguageCode, sourceText);

        // Check for failed translations.
        if (translatedText.equals(Translator.BAD_TRANSLATION_MSG)) {
            return false;
        }

        return true;
        //-----------------------------------------------------------
        /* AsyncHttpClient client = new AsyncHttpClient();
         client.get("http://www.google.com", new AsyncHttpResponseHandler() {
            
          @Override
          public void onFailure(int arg0, Header[] arg1, byte[] arg2,
        Throwable arg3) {
             // TODO Auto-generated method stub
             System.out.println("estamos en el onfailure");
          }
            
          @Override
          public void onSuccess(int arg0, Header[] arg1, byte[] arg2) {
             // TODO Auto-generated method stub
             System.out.println("estamos en el onSuccess");
          }
                
         });
            
        /*  AsyncHttpClient client = new AsyncHttpClient();
         RequestParams rp = new RequestParams();
         rp.put("param1", value1);
         rp.put("param2", value2);
         client.post("url a la que hacemos la peticion",rp, new JsonHttpResponseHandler(){
          public void onSuccess(JSONObject jObject){    
                  
          }   
          public void onFailure(Throwable arg0){
                  
          }
         });*/

        /*  translatedText="algo de texto traducido";
          if (translatedText.trim().length()<0) {
              return false;
            }
          return true;*/
        //-----------------------------
    }

    @Override
    protected synchronized void onPostExecute(Boolean result) {
        super.onPostExecute(result);

        if (result) {
            //Log.i(TAG, "SUCCESS");
            if (targetLanguageTextView != null) {
                targetLanguageTextView.setTypeface(Typeface.defaultFromStyle(Typeface.NORMAL), Typeface.NORMAL);
            }
            textView.setText(translatedText);
            textView.setVisibility(View.VISIBLE);
            textView.setTextColor(activity.getResources().getColor(R.color.translation_text));

            // Crudely scale betweeen 22 and 32 -- bigger font for shorter text
            int scaledSize = Math.max(22, 32 - translatedText.length() / 4);
            textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, scaledSize);

        } else {
            Log.e(TAG, "FAILURE");
            targetLanguageTextView.setTypeface(Typeface.defaultFromStyle(Typeface.ITALIC), Typeface.ITALIC);
            targetLanguageTextView.setText("Unavailable");

        }

        // Turn off the indeterminate progress indicator
        if (progressView != null) {
            progressView.setVisibility(View.GONE);
        }
    }
    //------------------------------------------------------------------

    //----------------------------------------------------------------------------
}