org.adempiere.webui.apps.graph.jfreegraph.PerformanceGraphBuilder.java Source code

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Here is the source code for org.adempiere.webui.apps.graph.jfreegraph.PerformanceGraphBuilder.java

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/******************************************************************************
 * Copyright (C) 2013 Heng Sin Low                                            *
 * Copyright (C) 2013 Trek Global                                        *
 * This program is free software; you can redistribute it and/or modify it    *
 * under the terms version 2 of the GNU General Public License as published   *
 * by the Free Software Foundation. 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, write to the Free Software Foundation, Inc.,    *
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.                     *
 *****************************************************************************/
package org.adempiere.webui.apps.graph.jfreegraph;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.LinearGradientPaint;
import java.awt.geom.Point2D;

import org.adempiere.webui.apps.graph.model.IndicatorModel;
import org.compiere.model.MColorSchema;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.DialShape;
import org.jfree.chart.plot.MeterInterval;
import org.jfree.chart.plot.MeterPlot;
import org.jfree.data.Range;
import org.jfree.data.general.DefaultValueDataset;

/**
 * 
 * @author hengsin
 *
 */
public class PerformanceGraphBuilder {

    public JFreeChart createIndicatorChart(IndicatorModel model) {
        JFreeChart chart = null;
        DefaultValueDataset data = new DefaultValueDataset((float) model.goalModel.getPercent());
        MeterPlot plot = new MeterPlot(data);

        MColorSchema colorSchema = model.goalModel.getColorSchema();
        int rangeLo = 0;
        int rangeHi = 0;
        Point2D start = new Point2D.Float(0, 0);
        Point2D end = new Point2D.Float(50, 50);
        float[] dist = { 0.0f, 0.2f, 0.45f, 0.75f, 1.0f };
        for (int i = 1; i <= 4; i++) {
            switch (i) {
            case 1:
                rangeHi = colorSchema.getMark1Percent();
                break;
            case 2:
                rangeHi = colorSchema.getMark2Percent();
                break;
            case 3:
                rangeHi = colorSchema.getMark3Percent();
                break;
            case 4:
                rangeHi = colorSchema.getMark4Percent();
                break;
            }
            if (rangeHi == 9999)
                rangeHi = (int) Math.floor(rangeLo * 1.5);
            if (rangeLo < rangeHi) {
                Color[] colors = { colorSchema.getColor(rangeHi).brighter().brighter(),
                        colorSchema.getColor(rangeHi).brighter(), colorSchema.getColor(rangeHi),
                        colorSchema.getColor(rangeHi).darker(), colorSchema.getColor(rangeHi).darker().darker() };
                LinearGradientPaint p = new LinearGradientPaint(start, end, dist, colors);

                plot.addInterval(new MeterInterval("Normal", //label
                        new Range(rangeLo, rangeHi), //range
                        p, new BasicStroke(7.0f), model.dialBackground));
                rangeLo = rangeHi;
            }
        }
        plot.setRange(new Range(0, rangeLo));
        plot.setDialBackgroundPaint(model.dialBackground);
        plot.setUnits("");
        plot.setDialShape(DialShape.CHORD);
        plot.setNeedlePaint(model.needleColor);
        plot.setTickSize(2000);
        plot.setTickLabelFont(new Font("SansSerif", Font.BOLD, 8));
        plot.setValueFont(new Font("SansSerif", Font.BOLD, 8));
        plot.setNoDataMessageFont(new Font("SansSerif", Font.BOLD, 8));
        plot.setTickLabelPaint(model.tickColor);
        plot.setValuePaint(new Color(0.0f, 0.0f, 0.0f, 0.0f));
        plot.setTickPaint(model.tickColor);
        //
        chart = new JFreeChart("", new Font("SansSerif", Font.BOLD, 9), plot, false);

        return chart;
    }
}