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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2023 Cloud Software Group, Inc. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports 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.
*
* JasperReports 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 JasperReports. If not, see .
*/
package net.sf.jasperreports.components.map;
import net.sf.jasperreports.engine.JRGenericPrintElement;
import net.sf.jasperreports.engine.ReportContext;
import net.sf.jasperreports.engine.export.GenericElementHtmlHandler;
import net.sf.jasperreports.engine.export.JRHtmlExporterContext;
import net.sf.jasperreports.engine.type.ModeEnum;
import net.sf.jasperreports.engine.util.JRColorUtil;
import net.sf.jasperreports.web.util.VelocityUtil;
import org.apache.velocity.VelocityContext;
import java.util.HashMap;
import java.util.Map;
/**
* @author Teodor Danciu ([email protected])
*/
public class MapElementHtmlHandler implements GenericElementHtmlHandler
{
private static final MapElementHtmlHandler INSTANCE = new MapElementHtmlHandler();
private static final String MAP_ELEMENT_HTML_TEMPLATE = "net/sf/jasperreports/components/map/resources/templates/MapElementHtmlTemplate.vm";
private static final String FIRST_ATTEMPT_PARAM = "exporter_first_attempt";
public static MapElementHtmlHandler getInstance()
{
return INSTANCE;
}
@Override
public String getHtmlFragment(JRHtmlExporterContext context, JRGenericPrintElement element)
{
ReportContext reportContext = context.getExporterRef().getReportContext();
Map contextMap = new HashMap<>();
contextMap.put("mapCanvasId", "map_canvas_" + element.hashCode());
contextMap.put("elementWidth", element.getWidth());
contextMap.put("elementHeight", element.getHeight());
if (element.getModeValue() == ModeEnum.OPAQUE)
{
contextMap.put("backgroundColor", JRColorUtil.getColorHexa(element.getBackcolor()));
}
contextMap.put("gotReportContext", reportContext != null);
if (reportContext == null)
{
contextMap.put("jasperreportsMapApiScript", VelocityUtil.processTemplate(MapUtils.MAP_API_SCRIPT, (VelocityContext) null));
MapUtils.prepareContextForVelocityTemplate(contextMap, context.getJasperReportsContext(), element);
if (context.getValue(FIRST_ATTEMPT_PARAM) == null)
{
context.setValue(FIRST_ATTEMPT_PARAM, true);
//FIXME: support for parametrized http://maps.google.com/maps/api/js script (see MapElementHtmlTemplate.vm)
contextMap.put("exporterFirstAttempt", true);
}
}
return VelocityUtil.processTemplate(MAP_ELEMENT_HTML_TEMPLATE, contextMap);
}
@Override
public boolean toExport(JRGenericPrintElement element)
{
return true;
}
}