chris@1: /*
chris@1:  *   SONEWS News Server
chris@1:  *   see AUTHORS for the list of contributors
chris@1:  *
chris@1:  *   This program is free software: you can redistribute it and/or modify
chris@1:  *   it under the terms of the GNU General Public License as published by
chris@1:  *   the Free Software Foundation, either version 3 of the License, or
chris@1:  *   (at your option) any later version.
chris@1:  *
chris@1:  *   This program is distributed in the hope that it will be useful,
chris@1:  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
chris@1:  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
chris@1:  *   GNU General Public License for more details.
chris@1:  *
chris@1:  *   You should have received a copy of the GNU General Public License
chris@1:  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
chris@1:  */
chris@1: 
chris@1: package org.sonews.web;
chris@1: 
chris@1: import info.monitorenter.gui.chart.Chart2D;
chris@1: import info.monitorenter.gui.chart.IAxis.AxisTitle;
chris@1: import java.awt.Color;
chris@1: import java.awt.image.BufferedImage;
chris@1: import java.io.ByteArrayOutputStream;
chris@1: import java.io.IOException;
chris@1: import javax.imageio.ImageIO;
chris@1: 
chris@1: /**
chris@1:  * A chart rendered to a memory bitmap.
chris@1:  * @author Christian Lins
chris@1:  * @since sonews/0.5.0
chris@1:  */
chris@1: class MemoryBitmapChart extends Chart2D
chris@1: {
chris@1: 
chris@1:   public MemoryBitmapChart()
chris@1:   {
chris@1:     setGridColor(Color.LIGHT_GRAY);
chris@1:     getAxisX().setPaintGrid(true);
chris@1:     getAxisY().setPaintGrid(true);
chris@1:     getAxisX().setAxisTitle(new AxisTitle("time of day"));
chris@1:     getAxisY().setAxisTitle(new AxisTitle("processed news"));
chris@1:   }
chris@1:   
chris@1:   public String getContentType()
chris@1:   {
chris@1:     return "image/png";
chris@1:   }
chris@1:   
chris@1:   public byte[] getRawData(final int width, final int height)
chris@1:     throws IOException
chris@1:   {
chris@1:     setSize(width, height);
chris@1:     BufferedImage img = snapShot(width, height);
chris@1:     ByteArrayOutputStream out = new ByteArrayOutputStream();
chris@1:     ImageIO.write(img, "png", out);
chris@1:     return out.toByteArray();
chris@1:   }
chris@1:   
chris@1: }