content: /*
   * Copyright (C) 2016 Bartosz Schiller.
   *
   * 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 com.github.barteksc.pdfviewer.util;
  
  import android.content.Context;
  import android.util.TypedValue;
  
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  
  public class Util {
      private static final int DEFAULT_BUFFER_SIZE = 1024 * 4;
  
      public static int getDP(Context context, int dp) {
          return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, context.getResources().getDisplayMetrics());
      }
  
      public static byte[] toByteArray(InputStream inputStream) throws IOException {
          ByteArrayOutputStream os = new ByteArrayOutputStream();
          byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
          int n;
          while (-1 != (n = inputStream.read(buffer))) {
              os.write(buffer, 0, n);
          }
          return os.toByteArray();
      }
  }
  