it.eng.spagobi.engines.kpi.bo.charttypes.dialcharts.BulletGraph.java Source code

Introduction

Here is the source code for it.eng.spagobi.engines.kpi.bo.charttypes.dialcharts.BulletGraph.java

Source

/* SpagoBI, the Open Source Business Intelligence suite
    
 * Copyright (C) 2012 Engineering Ingegneria Informatica S.p.A. - SpagoBI Competency Center
 * This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0, without the "Incompatible With Secondary Licenses" notice. 
 * If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package it.eng.spagobi.engines.kpi.bo.charttypes.dialcharts;

import it.eng.spagobi.engines.kpi.bo.ChartImpl;
import it.eng.spagobi.engines.kpi.utils.KpiInterval;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Vector;

import org.apache.log4j.Logger;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.AxisLocation;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.IntervalMarker;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.ValueMarker;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.data.Range;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.Layer;
import org.jfree.ui.RectangleInsets;

public class BulletGraph extends ChartImpl {
    private static transient Logger logger = Logger.getLogger(BulletGraph.class);

    public BulletGraph() {
        super();
        intervals = new Vector();
    }

    public void configureChart(HashMap conf) {
        logger.debug("IN");
        super.configureChart(conf);
        logger.debug("OUT");
    }

    public void setThresholds(List thresholds) {
        super.setThresholdValues(thresholds);
    }

    public JFreeChart createChart() {

        logger.debug("IN");
        Number value = null;

        if (dataset == null) {
            logger.debug("The dataset to be represented is null");
            value = new Double(0);
        } else {
            value = dataset.getValue();
        }

        DefaultCategoryDataset datasetC = new DefaultCategoryDataset();
        datasetC.addValue(value, "", "");

        // customize a bar chart 
        JFreeChart chart = ChartFactory.createBarChart(null, null, null, datasetC, PlotOrientation.HORIZONTAL,
                false, false, false);
        chart.setBorderVisible(false);

        CategoryPlot plot = chart.getCategoryPlot();
        plot.setOutlineVisible(true);
        plot.setOutlinePaint(Color.BLACK);

        plot.setInsets(new RectangleInsets(0.0, 0.0, 0.0, 0.0));
        plot.setBackgroundPaint(null);
        plot.setDomainGridlinesVisible(false);
        plot.setRangeGridlinesVisible(false);
        plot.setRangeCrosshairVisible(false);
        plot.setAnchorValue(value.doubleValue());

        // add the target marker 
        if (target != null) {
            ValueMarker marker = new ValueMarker(target.doubleValue(), Color.BLACK, new BasicStroke(2.0f));
            plot.addRangeMarker(marker, Layer.FOREGROUND);
        }

        //sets different marks
        for (Iterator iterator = intervals.iterator(); iterator.hasNext();) {
            KpiInterval interval = (KpiInterval) iterator.next();
            // add the marks 
            IntervalMarker marker = new IntervalMarker(interval.getMin(), interval.getMax(), interval.getColor());
            plot.addRangeMarker(marker, Layer.BACKGROUND);
            logger.debug("Added new interval to the plot");
        }

        // customize axes 
        CategoryAxis domainAxis = plot.getDomainAxis();
        domainAxis.setVisible(false);

        NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
        rangeAxis.setVisible(show_axis);
        rangeAxis.setLabelFont(new Font("Arial", Font.PLAIN, 4));
        // calculate the upper limit 
        //double upperBound = target * upperFactor; 
        rangeAxis.setRange(new Range(lower, upper));
        plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT);

        // customize renderer 
        BarRenderer renderer = (BarRenderer) plot.getRenderer();
        renderer.setMaximumBarWidth(0.18);
        renderer.setSeriesPaint(0, Color.BLACK);
        /*BasicStroke d = new BasicStroke(3f,BasicStroke.CAP_ROUND ,BasicStroke.JOIN_ROUND);
        renderer.setSeriesOutlineStroke(0, d);
        renderer.setSeriesStroke(0, d);
            
        renderer.setStroke(d);*/

        return chart;
    }
}