src/android/tests/src/com/google/android/inputmethod/japanese/vectorgraphic/BitmapSaver.java

// Copyright 2010-2014, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

package org.mozc.android.inputmethod.japanese.vectorgraphic;

import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.os.Environment;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

/**
 * Saves given {@code Bitmap} to the external stroge.
 */
public class BitmapSaver {

  private BitmapSaver() {
  }

  /**
   * @param filename e.g., "test-01.png"
   * @param bitmap a Bitmap to be saved
   * @return fullpath to resulting .png file.
   */
  public static String saveAsPng(String filename, Bitmap bitmap) {
    FileOutputStream output = null;
    try {
      File file = new File(Environment.getExternalStorageDirectory(), filename);
      output = new FileOutputStream(file);
      bitmap.compress(CompressFormat.PNG, 100, output);
      return file.getAbsolutePath();
    } catch (FileNotFoundException e) {
      throw new RuntimeException(e);
    } finally {
      try {
        output.close();
      } catch (IOException e) {
        throw new RuntimeException(e);
      }
    }
  }
}