com.etest.view.tq.charts.GraphicalInventoryPieChart.java Source code

Introduction

Here is the source code for com.etest.view.tq.charts.GraphicalInventoryPieChart.java

Source

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package com.etest.view.tq.charts;

import com.etest.model.Curriculum;
import com.etest.service.CurriculumService;
import com.etest.service.ReportService;
import com.etest.service.TQCoverageService;
import com.etest.serviceprovider.CurriculumServiceImpl;
import com.etest.serviceprovider.ReportServiceImpl;
import com.etest.serviceprovider.TQCoverageServiceImpl;
import com.etest.utilities.CommonUtilities;
import com.vaadin.ui.Component;
import com.vaadin.ui.Label;
import com.vaadin.ui.Panel;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.ui.Window;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.data.general.DefaultPieDataset;
import org.vaadin.addon.JFreeChartWrapper;

/**
 *
 * @author jetdario
 */
public class GraphicalInventoryPieChart extends Window {

    CurriculumService cs = new CurriculumServiceImpl();
    ReportService rs = new ReportServiceImpl();
    TQCoverageService tq = new TQCoverageServiceImpl();

    public enum BloomsClass {
        Remember, Understand, Apply, Analyze, Evaluate, Create
    }

    private int curriculumId;

    public GraphicalInventoryPieChart(int curriculumId) {
        this.curriculumId = curriculumId;
        setModal(true);

        int percentage = 0;
        VerticalLayout v = new VerticalLayout();
        DefaultPieDataset dataset = new DefaultPieDataset();

        for (BloomsClass b : BloomsClass.values()) {
            percentage = (int) calculatePercentageOfItemsPerBloomsClass(
                    rs.getTotalItemsBySubject(getCurriculumId()),
                    rs.getTotalItemsByBloomsCass(getCurriculumId(), tq.getBloomsClassId(b.toString())));

            dataset.setValue(b + " " + percentage + "%", percentage);
        }

        JFreeChart chart = ChartFactory.createPieChart(
                "Inventory of Items for " + cs.getCurriculumById(getCurriculumId()).getSubject(), dataset, true,
                true, false);

        //        JFreeChartWrapper wrapper = new JFreeChartWrapper(chart){
        //            
        //            @Override
        //            public void attach(){
        //                super.attach();
        //                setResource("src", getSource());
        //            }
        //            
        //        };

        v.addComponent(new ReportChartWrapper(chart, null, null));
        v.setWidthUndefined();
        v.setHeightUndefined();

        setContent(v);
        getContent().setWidthUndefined();
        getContent().setHeightUndefined();
        center();
    }

    double calculatePercentageOfItemsPerBloomsClass(int totalItems, int totalItemsPerSubject) {
        return CommonUtilities.roundOffToWholeNumber(((double) totalItemsPerSubject / totalItems) * 100);
    }

    int getCurriculumId() {
        return curriculumId;
    }
}