content: /*
   * Copyright (C) 2010 The Android Open Source Project
   *
   * 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.example.cairo;
  
  import android.app.Activity;
  import android.os.Bundle;
  import android.content.Context;
  import android.view.View;
  import android.graphics.Bitmap;
  import android.graphics.Canvas;
  
  public class Cairo extends Activity {
      @Override public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(new CairoView(this));
      }
  
      static {
          System.loadLibrary("java-bitmap");
      }
  }
  
  class CairoView extends View {
      /* implementend by libjava-bitmap.so */
      private static native void drawFrame(Bitmap bitmap);
  
      private Bitmap bmp;
  
      public CairoView(Context context) {
          super(context);
          bmp = Bitmap.createBitmap(10,10, Bitmap.Config.RGB_565);
  
      }
  
      @Override protected void onDraw(Canvas canvas) {
          if (bmp.getWidth() != canvas.getWidth() || bmp.getHeight() != canvas.getHeight()) {
              bmp = Bitmap.createBitmap(canvas.getWidth(), canvas.getHeight(), Bitmap.Config.RGB_565);
          }
  
          drawFrame(bmp);
          canvas.drawBitmap(bmp, 0, 0, null);
          invalidate(); /* force redreaw */
      }
  }
  