gwt.material.design.demo.client.ui.charts.MaterialComboCharts.java Source code

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Here is the source code for gwt.material.design.demo.client.ui.charts.MaterialComboCharts.java

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package gwt.material.design.demo.client.ui.charts;

/*
 * #%L
 * GwtMaterial
 * %%
 * Copyright (C) 2015 - 2016 GwtMaterialDesign
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */

import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.JsArrayMixed;
import com.google.gwt.core.client.JsonUtils;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.Widget;
import com.googlecode.gwt.charts.client.ChartLoader;
import com.googlecode.gwt.charts.client.ChartPackage;
import com.googlecode.gwt.charts.client.DataTable;
import com.googlecode.gwt.charts.client.corechart.ComboChart;
import com.googlecode.gwt.charts.client.corechart.ComboChartOptions;
import com.googlecode.gwt.charts.client.corechart.ComboChartSeries;
import com.googlecode.gwt.charts.client.options.HAxis;
import com.googlecode.gwt.charts.client.options.SeriesType;
import com.googlecode.gwt.charts.client.options.VAxis;
import com.googlecode.gwt.charts.client.util.ChartHelper;
import gwt.material.design.client.ui.MaterialCardContent;

public class MaterialComboCharts extends Composite {

    private static MaterialComboChartsUiBinder uiBinder = GWT.create(MaterialComboChartsUiBinder.class);

    interface MaterialComboChartsUiBinder extends UiBinder<Widget, MaterialComboCharts> {
    }

    @UiField
    MaterialCardContent cardContent;

    private ComboChart chart;

    public MaterialComboCharts() {
        initWidget(uiBinder.createAndBindUi(this));
        initialize();
    }

    private void initialize() {
        ChartLoader chartLoader = new ChartLoader(ChartPackage.CORECHART);
        chartLoader.loadApi(new Runnable() {

            @Override
            public void run() {
                // Create and attach the chart
                chart = new ComboChart();
                cardContent.add(chart);
                draw();
            }
        });
    }

    private void draw() {
        JsArrayMixed dataArray = JsonUtils.unsafeEval(
                "[['Month', 'Bolivia', 'Ecuador', 'Madagascar', 'Papua  Guinea', 'Rwanda', 'Average'],['2004/05', 165, 938, 522, 998, 450, 614.6],['2005/06', 135, 1120, 599, 1268, 288, 682],['2006/07', 157, 1167, 587, 807, 397, 623],['2007/08', 139, 1110, 615, 968, 215, 609.4],['2008/09', 136, 691, 629, 1026, 366, 569.6]]");

        // Prepare the data
        DataTable dataTable = ChartHelper.arrayToDataTable(dataArray);

        // Set options
        ComboChartOptions options = ComboChartOptions.create();
        options.setFontName("Tahoma");
        options.setTitle("Monthly Coffee Production by Country");
        options.setHAxis(HAxis.create("Cups"));
        options.setVAxis(VAxis.create("Month"));
        options.setSeriesType(SeriesType.BARS);
        ComboChartSeries series = ComboChartSeries.create();
        series.setType(SeriesType.LINE);
        options.setSeries(5, series);

        // Draw the chart
        chart.draw(dataTable, options);
    }

}