net.sf.dynamicreports.googlecharts.jasper.geomap.GeoMapElementHtmlHandler.java Source code

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Here is the source code for net.sf.dynamicreports.googlecharts.jasper.geomap.GeoMapElementHtmlHandler.java

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/**
 * DynamicReports - Free Java reporting library for creating reports dynamically
 *
 * Copyright (C) 2010 - 2014 Ricardo Mariaca
 * http://www.dynamicreports.org
 *
 * This file is part of DynamicReports.
 *
 * DynamicReports is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * DynamicReports 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.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with DynamicReports. If not, see <http://www.gnu.org/licenses/>.
 */

package net.sf.dynamicreports.googlecharts.jasper.geomap;

import java.awt.Color;
import java.util.List;
import java.util.Set;

import net.sf.dynamicreports.googlecharts.report.geomap.GeoMapDataMode;
import net.sf.jasperreports.engine.JRGenericPrintElement;
import net.sf.jasperreports.engine.export.GenericElementHtmlHandler;
import net.sf.jasperreports.engine.export.JRHtmlExporter;
import net.sf.jasperreports.engine.export.JRHtmlExporterContext;
import net.sf.jasperreports.engine.export.JRXhtmlExporter;
import net.sf.jasperreports.engine.type.ModeEnum;
import net.sf.jasperreports.engine.util.JRColorUtil;
import net.sf.jasperreports.web.util.VelocityUtil;

import org.apache.commons.lang3.StringUtils;
import org.apache.velocity.VelocityContext;

/**
 * @author Ricardo Mariaca (r.mariaca@dynamicreports.org)
 */
public class GeoMapElementHtmlHandler implements GenericElementHtmlHandler {

    private static final String GEOMAP_ELEMENT_HTML_TEMPLATE = "net/sf/dynamicreports/googlecharts/jasper/geomap/GeoMapElementHtmlTemplate.vm";

    @Override
    public String getHtmlFragment(JRHtmlExporterContext context, JRGenericPrintElement element) {
        Boolean showLegend = (Boolean) element.getParameterValue(GeoMapPrintElement.PARAMETER_SHOW_LEGEND);
        GeoMapDataMode dataMode = (GeoMapDataMode) element
                .getParameterValue(GeoMapPrintElement.PARAMETER_DATA_MODE);
        String region = (String) element.getParameterValue(GeoMapPrintElement.PARAMETER_REGION);
        String valueLabel = (String) element.getParameterValue(GeoMapPrintElement.PARAMETER_VALUE_LABEL);
        if (valueLabel == null) {
            valueLabel = "";
        }
        @SuppressWarnings("unchecked")
        List<Color> colors = (List<Color>) element.getParameterValue(GeoMapPrintElement.PARAMETER_COLORS);
        String stringColors = null;
        if (colors != null && !colors.isEmpty()) {
            stringColors = "";
            for (Color color : colors) {
                stringColors += "," + getColorString(color);
            }
            stringColors = StringUtils.removeStart(stringColors, ",");
        }
        @SuppressWarnings("unchecked")
        Set<GeoMapData> dataset = (Set<GeoMapData>) element.getParameterValue(GeoMapPrintElement.PARAMETER_DATASET);

        VelocityContext velocityContext = new VelocityContext();
        velocityContext.put("showLegend", showLegend);
        if (dataMode != null) {
            switch (dataMode) {
            case REGIONS:
                velocityContext.put("dataMode", "regions");
                break;
            case MARKERS:
                velocityContext.put("dataMode", "markers");
                break;
            default:
                break;
            }
        }
        velocityContext.put("id", "map_" + element.hashCode());
        velocityContext.put("region", region);
        velocityContext.put("valueLabel", valueLabel);
        velocityContext.put("colors", stringColors);
        velocityContext.put("dataset", dataset);
        if (context.getExporter() instanceof JRXhtmlExporter) {
            velocityContext.put("xhtml", "xhtml");
            velocityContext.put("elementX", ((JRXhtmlExporter) context.getExporter()).toSizeUnit(element.getX()));
            velocityContext.put("elementY", ((JRXhtmlExporter) context.getExporter()).toSizeUnit(element.getY()));
        } else {
            velocityContext.put("elementX", ((JRHtmlExporter) context.getExporter()).toSizeUnit(element.getX()));
            velocityContext.put("elementY", ((JRHtmlExporter) context.getExporter()).toSizeUnit(element.getY()));
        }
        velocityContext.put("elementWidth", element.getWidth());
        velocityContext.put("elementHeight", element.getHeight());

        if (element.getModeValue() == ModeEnum.OPAQUE) {
            velocityContext.put("backgroundColor", JRColorUtil.getColorHexa(element.getBackcolor()));
        }
        return VelocityUtil.processTemplate(GEOMAP_ELEMENT_HTML_TEMPLATE, velocityContext);
    }

    private String getColorString(Color color) {
        int colorMask = Integer.parseInt("FFFFFF", 16);
        String hex = Integer.toHexString(color.getRGB() & colorMask).toUpperCase();
        return "0x" + ("000000" + hex).substring(hex.length());
    }

    @Override
    public boolean toExport(JRGenericPrintElement element) {
        return true;
    }
}