1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/org/sonews/web/MemoryBitmapChart.java Fri Jun 26 16:48:50 2009 +0200
1.3 @@ -0,0 +1,61 @@
1.4 +/*
1.5 + * SONEWS News Server
1.6 + * see AUTHORS for the list of contributors
1.7 + *
1.8 + * This program is free software: you can redistribute it and/or modify
1.9 + * it under the terms of the GNU General Public License as published by
1.10 + * the Free Software Foundation, either version 3 of the License, or
1.11 + * (at your option) any later version.
1.12 + *
1.13 + * This program is distributed in the hope that it will be useful,
1.14 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.15 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.16 + * GNU General Public License for more details.
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License
1.19 + * along with this program. If not, see <http://www.gnu.org/licenses/>.
1.20 + */
1.21 +
1.22 +package org.sonews.web;
1.23 +
1.24 +import info.monitorenter.gui.chart.Chart2D;
1.25 +import info.monitorenter.gui.chart.IAxis.AxisTitle;
1.26 +import java.awt.Color;
1.27 +import java.awt.image.BufferedImage;
1.28 +import java.io.ByteArrayOutputStream;
1.29 +import java.io.IOException;
1.30 +import javax.imageio.ImageIO;
1.31 +
1.32 +/**
1.33 + * A chart rendered to a memory bitmap.
1.34 + * @author Christian Lins
1.35 + * @since sonews/0.5.0
1.36 + */
1.37 +class MemoryBitmapChart extends Chart2D
1.38 +{
1.39 +
1.40 + public MemoryBitmapChart()
1.41 + {
1.42 + setGridColor(Color.LIGHT_GRAY);
1.43 + getAxisX().setPaintGrid(true);
1.44 + getAxisY().setPaintGrid(true);
1.45 + getAxisX().setAxisTitle(new AxisTitle("time of day"));
1.46 + getAxisY().setAxisTitle(new AxisTitle("processed news"));
1.47 + }
1.48 +
1.49 + public String getContentType()
1.50 + {
1.51 + return "image/png";
1.52 + }
1.53 +
1.54 + public byte[] getRawData(final int width, final int height)
1.55 + throws IOException
1.56 + {
1.57 + setSize(width, height);
1.58 + BufferedImage img = snapShot(width, height);
1.59 + ByteArrayOutputStream out = new ByteArrayOutputStream();
1.60 + ImageIO.write(img, "png", out);
1.61 + return out.toByteArray();
1.62 + }
1.63 +
1.64 +}