PCTypeDefHandler.cpp

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// Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.dev/sumo
// Copyright (C) 2001-2025 German Aerospace Center (DLR) and others.
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0/
// This Source Code may also be made available under the following Secondary
// Licenses when the conditions for such availability set forth in the Eclipse
// Public License 2.0 are satisfied: GNU General Public License, version 2
// or later which is available at
// https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
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// A handler for loading polygon type maps
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#include <config.h>
 
#include <string>
#include <utils/options/OptionsCont.h>
#include <utils/common/MsgHandler.h>
#include <utils/common/StringTokenizer.h>
#include <utils/common/RGBColor.h>
#include <utils/common/UtilExceptions.h>
#include <utils/xml/SUMOSAXHandler.h>
#include <utils/xml/SUMOXMLDefinitions.h>
#include <utils/shapes/Shape.h>
#include "PCTypeMap.h"
#include "PCTypeDefHandler.h"
 
 
// ===========================================================================
// method definitions
// ===========================================================================
PCTypeDefHandler::PCTypeDefHandler(OptionsCont& oc, PCTypeMap& con) :
    SUMOSAXHandler(),
    myOptions(oc),
    myContainer(con),
    myOverwriteType(!oc.isDefault("type"))
{}
 
 
PCTypeDefHandler::~PCTypeDefHandler() {}
 
 
void
PCTypeDefHandler::myStartElement(int element,
                                 const SUMOSAXAttributes& attrs) {
    if (element == SUMO_TAG_POLYTYPE) {
        bool ok = true;
        // get the id, report an error if not given or empty...
        std::string id = attrs.get<std::string>(SUMO_ATTR_ID, nullptr, ok);
        if (!ok) {
            return;
        }
        const std::string icon = attrs.getOpt<std::string>(SUMO_ATTR_ICON, id.c_str(), ok, myOptions.getString("icon"));
        const double layer = attrs.getOpt<double>(SUMO_ATTR_LAYER, id.c_str(), ok, myOptions.getFloat("layer"));
        const bool discard = attrs.getOpt<bool>(SUMO_ATTR_DISCARD, id.c_str(), ok, false);
        PCTypeMap::Filltype allowFill = myOptions.getBool("fill") ? PCTypeMap::Filltype::FILL : PCTypeMap::Filltype::NOFILL;
        if (attrs.hasAttribute(SUMO_ATTR_FILL)) {
            const std::string allowFillS = attrs.get<std::string>(SUMO_ATTR_FILL, id.c_str(), ok);
            if (allowFillS == "force") {
                allowFill = PCTypeMap::Filltype::FORCE;
            } else {
                allowFill = StringUtils::toBool(allowFillS) ? PCTypeMap::Filltype::FILL : PCTypeMap::Filltype::NOFILL;
            }
        }
        const std::string type = attrs.getOpt<std::string>(SUMO_ATTR_NAME, id.c_str(), ok, myOverwriteType ? myOptions.getString("type") : id);
        const std::string prefix = attrs.getOpt<std::string>(SUMO_ATTR_PREFIX, id.c_str(), ok, myOptions.getString("prefix"));
        const std::string color = attrs.getOpt<std::string>(SUMO_ATTR_COLOR, id.c_str(), ok, myOptions.getString("color"));
        const double angle = attrs.getOpt<double>(SUMO_ATTR_ANGLE, id.c_str(), ok, Shape::DEFAULT_ANGLE);
        const std::string imgFile = attrs.getOpt<std::string>(SUMO_ATTR_IMGFILE, id.c_str(), ok, Shape::DEFAULT_IMG_FILE);
        // !!! what about error handling?
        if (!myContainer.add(id, type, color, prefix, icon, layer, angle, imgFile, discard, allowFill)) {
            WRITE_ERRORF(TL("Could not add polygon type '%' (probably the id is already used)."), id);
        }
    }
}
 
 
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