uk.ac.ed.epcc.webapp.charts.jfreechart.JFreeChartData.java Source code

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Here is the source code for uk.ac.ed.epcc.webapp.charts.jfreechart.JFreeChartData.java

Source

//| Copyright - The University of Edinburgh 2011                            |
//|                                                                         |
//| 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.                                          |
/*******************************************************************************
 * Copyright (c) - The University of Edinburgh 2010
 *******************************************************************************/
package uk.ac.ed.epcc.webapp.charts.jfreechart;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.GradientPaint;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;

import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;

import uk.ac.ed.epcc.webapp.charts.ChartData;
import uk.ac.ed.epcc.webapp.charts.Plot;

public abstract class JFreeChartData<P extends Plot> implements ChartData<P> {

    /**
     * 
     */
    //private static final int DEFAULT_Y_SIZE = 345;
    private static final int DEFAULT_Y_SIZE = 400;
    /**
     * 
     */
    //private static final int DEFAULT_X_SIZE = 690;
    private static final int DEFAULT_X_SIZE = 800;
    //String labels[];

    String quantity;
    String title;

    public void createPNG(OutputStream res) throws IOException {
        ChartUtilities.writeChartAsPNG(res, getCustomisedJFreeChart(), DEFAULT_X_SIZE, DEFAULT_Y_SIZE);
    }

    public void createPNG(File pngfile) throws IOException {
        ChartUtilities.saveChartAsPNG(pngfile, getCustomisedJFreeChart(), DEFAULT_X_SIZE, DEFAULT_Y_SIZE);
    }

    public void createPNG(String pngfile) throws IOException {
        createPNG(new File(pngfile + ".png"));
    }

    public void writeGraphics(Graphics2D g) throws Exception {
        getCustomisedJFreeChart().draw(g, new Rectangle(DEFAULT_X_SIZE, DEFAULT_Y_SIZE));
        //throw new UnsupportedOperation("JFreeChart does not support SVG");
    }

    public abstract JFreeChart getJFreeChart();

    private JFreeChart getCustomisedJFreeChart() {
        JFreeChart chart = getJFreeChart();
        chart.getPlot().setBackgroundPaint(
                new GradientPaint(0.0f, 0.0F, new Color(0.75F, 0.75F, 1.0F), 0.0F, 100.0F, Color.white, false));
        if (title != null && title.trim().length() > 0) {
            chart.setTitle(title);
        }
        return chart;
    }

    public void setQuantityName(String s) {
        quantity = s;

    }

    /* (non-Javadoc)
     * @see uk.ac.ed.epcc.webapp.charts.ChartData#getQuantityName()
     */
    public String getQuantityName() {
        return quantity;
    }

    public void setTitle(String t) {
        this.title = t;
    }

    public Dimension getSize() {

        return new Dimension(DEFAULT_X_SIZE, DEFAULT_Y_SIZE);
    }

    public void setGraphical(boolean val) {
        // nothin needed

    }
}