package samples.chart;

import java.awt.Color;

import com.inet.report.Chart2;
import com.inet.report.DatabaseField;
import com.inet.report.Engine;
import com.inet.report.Field;
import com.inet.report.RDC;
import com.inet.report.ReportException;
import com.inet.report.Section;
import com.inet.report.SummaryField;
import com.inet.report.TableSource;
import com.inet.report.chart.ChartTitle;
import com.inet.report.chart.Legend;
import com.inet.report.chart.LegendPlacement;
import com.inet.report.chart.axis.ContinuousNumberAxis;
import com.inet.report.chart.axis.GroupAxis;
import com.inet.report.chart.dataset.OneGroupDataset;
import com.inet.report.chart.format.FixedNumberFormat;
import com.inet.report.chart.plot.BarPlot;
import com.inet.report.chart.plot.BarStyle;
import com.inet.report.chart.plot.StandardPlot;

import samples.rdc.RDCSample;

/**
 * This sample demonstrates how you can create a bar chart and use this properties.
 */
public class BarSample extends RDCSample {
    
    /**
     * The category column name.
     */
    private static String category = "Category";
    
    /**
     * The value column name.
     */
    private static String value = "Value";
    
    /**
     * Creates an empty engine, adds a chart and sets the data.
     * @param exportFmt the export format set by super class.
     * @return returns the created engine.
     */
    public Engine createAndFillEngine (String exportFmt) {
        try {
            //Creates a new empty engine.
            Engine engine = RDC.createEmptyEngine(exportFmt);
            
            //Creates two database columns used by chart.
            TableSource tableSource = engine.getDatabaseTables().getDatasource(0).createTableSource("sample");
            tableSource.addColumn(category, Field.STRING);
            tableSource.addColumn(value, Field.NUMBER);

            //Gets the first section of report header.
            Section section = engine.getArea(Engine.REPORT_HEADER).getSection(0);
            
            //Creates a new bar chart in the section.
            Chart2 barChart = section.addChart2(BarStyle.BAR3D, 0, 0, 8000, 6000);
            
            //Gets the legend of chart to set this properties.
            Legend legend = barChart.getLegend();
            //Moves the legend to the bottom site of chart.
            legend.setLegendPlacement(LegendPlacement.BOTTOM);
            //Sets the legend label color.
            legend.setLegendColor(RDC.COLOR_WHITE);
            //Sets the legend background color.
            legend.setBackColor(RDC.COLOR_GRAY);
            
            //Gets the header title of chart.
            ChartTitle title = barChart.getHeaderTitle();
            //Sets the custom label instead of automatic generated label.
            title.setShowAutoTitle(false);
            title.setTitle("Header title");
            //Sets the title label color.
            title.setColor(RDC.toCcColor(new Color(85, 85, 85)));
            
            //Creates a data source of chart.
            BarPlot plot = (BarPlot)barChart.getPlot();
            //This chart gets a one group dataset. 
            OneGroupDataset dataset = new OneGroupDataset(barChart);
            //Adds the category field as group.
            DatabaseField categoryField = tableSource.getDatabaseField(category);
            dataset.setCategoryGroup(categoryField);
            //Adds the value field. The chart should shows a sum of values for each category.
            DatabaseField valueField = tableSource.getDatabaseField(value);
            dataset.addDataField(SummaryField.SUM, valueField, null, 0);
            plot.setDataset(dataset);
            
            //Sets the plot background color.
            plot.setBackColor(RDC.COLOR_GRAY);
            //Sets the chart items outline.
            plot.setOutlineColor(RDC.toCcColor(new Color(150, 0, 0)));
            
            //Sets the labels item value will be shown.
            plot.setShowValue(true);
            //Sets the item label color.
            plot.setItemLabelColor(RDC.COLOR_WHITE);
            //Sets the item label position.
            plot.setItemLabelPosition(StandardPlot.ITEM_LABEL_POSITION_CENTER);
            
            //Gets the category axis to change it properties.
            GroupAxis categoryAxis = (GroupAxis)plot.getCategoryAxis();
            //Rotates the axis tick labels on 45°
            categoryAxis.setAutoFitTickLabel(false);
            categoryAxis.setTickLabelRotationAngle(new Double(Math.PI/4.0));
            //Sets a empty axis label.
            categoryAxis.getTitle().setShowAutoTitle(false);
            categoryAxis.getTitle().setTitle("");
            
            //Gets the data axis to change it properties.
            ContinuousNumberAxis valueAxis = (ContinuousNumberAxis)plot.getDataAxis();
            //Sets the number of divisions.
            valueAxis.setNumberOfDivisions(Integer.valueOf(5));
            //Sets a custom number format with two decimal places.
            FixedNumberFormat format = new FixedNumberFormat(FixedNumberFormat.FORMAT_NUMBER);
            format.setNumberOfDecimalPlaces(2);
            valueAxis.setTickLabelFormat(format);
            //Sets a empty axis label.
            valueAxis.getTitle().setShowAutoTitle(false);
            valueAxis.getTitle().setTitle("");
            
            //Sets the report data. 
            setData(engine);
            return engine;
        } catch (Throwable e) {
            e.printStackTrace();
            System.exit(0);
            return null;
        }
    }
    
    /**
     * Sets the report data. This sets the two data columns used by chart.
     * @param engine the current engine
     * @throws ReportException if engine is not initialized or finished.
     */
    private static void setData(Engine engine) throws ReportException {       
        String[] columns = {category, value};
        Object[][] data = new Object[4][];
        data[0] = new Object[2];
        data[0][0] = "Category 1";
        data[0][1] = Integer.valueOf(1);
        
        data[1] = new Object[2];
        data[1][0] = "Category 2";
        data[1][1] = Integer.valueOf(2);
        
        data[2] = new Object[2];
        data[2][0] = "Category 3";
        data[2][1] = Integer.valueOf(5);
        
        data[3] = new Object[2];
        data[3][0] = "Category 4";
        data[3][1] = Integer.valueOf(4);
        
        engine.setData(columns, data);
    }
    
    /**
     * Starts this sample.
     * @param argv nothing
     */
    public static void main( String[] argv ) {
        new BarSample().initUI();
    }
}