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

Introduction

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

Source

/*
 * 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.util.List;

import jofc2.model.Chart;
import jofc2.model.axis.XAxis;
import jofc2.model.elements.AreaHollowChart;
import jofc2.model.elements.AreaLineChart;
import jofc2.model.elements.LineChart;

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

public class AreaChartBuilder extends LineChartBuilder {

    protected void setupElements(Chart c, Node root, IPentahoResultSet data) {
        String dotType = setupDotType(root);
        int rowCount = data.getRowCount();
        int columnCount = data.getMetaData().getColumnCount();
        LineChart[] elements = null;
        if (columnCount > 1) {
            if (DOT_TYPE_HOLLOW.equalsIgnoreCase(dotType))
                elements = new AreaHollowChart[rowCount];
            else
                elements = new AreaLineChart[rowCount];
            List colors = root.selectNodes("/chart/color-palette/color");
            for (int n = 0; n < rowCount; n++) {
                LineChart e = null;
                if (DOT_TYPE_HOLLOW.equalsIgnoreCase(dotType)) {
                    e = new AreaHollowChart();
                } else {
                    e = new AreaLineChart();
                }

                Number[] datas = new Number[columnCount - 1];
                for (int i = 1; i <= columnCount - 1; i++) {
                    datas[i - 1] = (Number) data.getValueAt(n, i);
                    e.addValues(datas[i - 1].doubleValue());
                }
                String colour;
                if (colors != null && colors.size() > 1) {
                    colour = ((Node) colors.get(n)).getText().trim();
                    e.setColour(colour);
                }
                e.setText("" + data.getValueAt(n, 0));
                setLink(e, root, "/chart/link");
                setOnClick(e, root, "/chart/on-click");
                elements[n] = e;
                //TODO
                setWidth(e, null);

            }
            setupXAxisLabels(data, c, columnCount);
        }

        c.addElements(elements);
    }

    private String setupDotType(Node root) {
        if (getValue(root.selectSingleNode("/chart/dot-style")) != null) {
            return getNodeValue(root.selectSingleNode("/chart/dot-style"));
        }
        return "normal";
    }

    protected void setWidth(LineChart e, Node node) {
        e.setWidth(1);
    }

    protected void setupXAxisLabels(IPentahoResultSet data, Chart c, int columnCount) {
        String[] labels = new String[columnCount - 1];
        for (int j = 1; j <= columnCount - 1; j++) {
            Object obj = data.getMetaData().getColumnHeaders()[0][j];

            labels[j - 1] = obj.toString();

        }
        c.setXAxis(new XAxis().addLabels(labels));
    }

}