com.google.code.pentahoflashcharts.charts.pfcxml.PieChartBuilder.java Source code

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Here is the source code for com.google.code.pentahoflashcharts.charts.pfcxml.PieChartBuilder.java

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/*
 * This program is free software; you can redistribute it and/or modify it under the 
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software 
 * Foundation.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this 
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html 
 * or from the Free Software Foundation, Inc., 
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * 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 Lesser General Public License for more details.
 *
 * Copyright 2009 Pentaho Corporation.  
 * Copyright 2009 Bayon Technologies.
 * All rights reserved.
 */
package com.google.code.pentahoflashcharts.charts.pfcxml;

import java.text.SimpleDateFormat;

import jofc2.model.Chart;
import jofc2.model.elements.Element;
import jofc2.model.elements.PieChart;
import jofc2.model.elements.PieChart.Slice;

import org.dom4j.Node;
import org.pentaho.commons.connection.IPentahoResultSet;

public class PieChartBuilder extends DefaultChartBuilder {
    private static SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd");

    protected void setupElements(Chart c, Node root, IPentahoResultSet data) {
        PieChart e = new PieChart();
        int rowCount = data.getRowCount();
        Node colIndexNode = root.selectSingleNode("/chart/slice/datas/sql-column-index");
        Node labelIndexNode = root.selectSingleNode("/chart/slice/labels/sql-column-index");
        if (colIndexNode != null && colIndexNode.getText().length() > 0) {
            int index = Integer.parseInt(colIndexNode.getText().trim());
            int labelindex = Integer.parseInt(labelIndexNode.getText().trim());
            for (int j = 0; j < rowCount; j++) {
                Object obj = data.getValueAt(j, labelindex - 1);
                Number value = (Number) data.getValueAt(j, index - 1);
                if (obj instanceof java.sql.Timestamp || obj instanceof java.util.Date) {
                    e.addSlice(value.doubleValue(), sf.format(obj));
                } else {
                    Slice s = new Slice(value.doubleValue(), obj.toString());
                    e.addSlices(s);
                }
            }
        }
        c.addElements(e);
    }

    protected void setupOthers(Chart c, Node root, IPentahoResultSet data) {
        PieChart e = (PieChart) c.getElements().iterator().next();
        setStartAngle(root, e);
        setOnClick(e, root, "/chart/on-click");
        setLink(e, root, "/chart/link");
        e.setAlpha(0.3f);
        e.setBorder(2);
        setIsAnimated(root, e);
        setColorPalette(root, e);
        setTooltip(root, e);

    }

    protected void setTooltip(Node root, Element e) {
        Node tooltipNode = root.selectSingleNode("/chart/tooltip");
        if (tooltipNode != null && tooltipNode.getText().length() > 0) {
            String tooltip = tooltipNode.getText().trim();
            e.setTooltip(tooltip);
        } else {
            e.setTooltip("#val# of #total#<br>#percent# of 100%");
        }
    }

    protected void setColorPalette(Node root, PieChart e) {
        Node colorsNode = root.selectSingleNode("/chart/slice/color-palette");
        if (colorsNode != null && colorsNode.getText().length() > 0) {
            String[] colors = null;

            colors = fillLabels(colorsNode);
            e.setColours(colors);

        }
    }

    protected void setIsAnimated(Node root, PieChart e) {
        Node isAnimateNode = root.selectSingleNode("/chart/isAnimate");
        if (isAnimateNode != null && isAnimateNode.getText().length() > 0) {
            String str = isAnimateNode.getText().trim();
            if ("true".equalsIgnoreCase(str)) {
                e.setAnimate(true);
            } else
                e.setAnimate(false);
        }
    }

    protected void setStartAngle(Node root, PieChart e) {
        Node startAngleNode = root.selectSingleNode("/chart/start-angle");
        if (startAngleNode != null && startAngleNode.getText().length() > 0) {
            e.setStartAngle(Integer.parseInt(startAngleNode.getText().trim()));
        } else
            e.setStartAngle(35);
    }

}