/*

  *   SONEWS News Server

  *   see AUTHORS for the list of contributors

  *

  *   This program is free software: you can redistribute it and/or modify

  *   it under the terms of the GNU General Public License as published by

  *   the Free Software Foundation, either version 3 of the License, or

  *   (at your option) any later version.

  *

  *   This program is distributed in the hope that it will be useful,

  *   but WITHOUT ANY WARRANTY; without even the implied warranty of

  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  *   GNU General Public License for more details.

  *

  *   You should have received a copy of the GNU General Public License

  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.

  */

 package org.sonews.web;

 import info.monitorenter.gui.chart.Chart2D;

 import info.monitorenter.gui.chart.IAxis.AxisTitle;

 import java.awt.Color;

 import java.awt.image.BufferedImage;

 import java.io.ByteArrayOutputStream;

 import java.io.IOException;

 import javax.imageio.ImageIO;

 /**

  * A chart rendered to a memory bitmap.

  * @author Christian Lins

  * @since sonews/0.5.0

  */

 class MemoryBitmapChart extends Chart2D

 {

   public MemoryBitmapChart()

   {

     setGridColor(Color.LIGHT_GRAY);

     getAxisX().setPaintGrid(true);

     getAxisY().setPaintGrid(true);

     getAxisX().setAxisTitle(new AxisTitle("time of day"));

     getAxisY().setAxisTitle(new AxisTitle("processed news"));

   }

   public String getContentType()

   {

     return "image/png";

   }

   public byte[] getRawData(final int width, final int height)

     throws IOException

   {

     setSize(width, height);

     BufferedImage img = snapShot(width, height);

     ByteArrayOutputStream out = new ByteArrayOutputStream();

     ImageIO.write(img, "png", out);

     return out.toByteArray();

   }

 }