74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
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/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2011 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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// mapnik
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#include <mapnik/datasource.hpp>
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#include "shape_utils.hpp"
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// boost
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#include <boost/algorithm/string.hpp>
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// stl
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#include <sstream>
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#include <iostream>
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void setup_attributes(mapnik::context_ptr const& ctx,
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std::set<std::string> const& names,
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std::string const& shape_name,
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shape_io & shape,
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std::vector<int> & attr_ids)
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{
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std::set<std::string>::const_iterator pos = names.begin();
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std::set<std::string>::const_iterator end = names.end();
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for ( ;pos !=end; ++pos)
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{
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bool found_name = false;
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for (int i = 0; i < shape.dbf().num_fields(); ++i)
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{
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if (shape.dbf().descriptor(i).name_ == *pos)
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{
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ctx->push(*pos);
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attr_ids.push_back(i);
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found_name = true;
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break;
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}
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}
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if (! found_name)
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{
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std::ostringstream s;
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s << "no attribute '" << *pos << "' in '"
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<< shape_name << "'. Valid attributes are: ";
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std::vector<std::string> list;
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for (int i = 0; i < shape.dbf().num_fields(); ++i)
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{
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list.push_back(shape.dbf().descriptor(i).name_);
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}
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s << boost::algorithm::join(list, ",") << ".";
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throw mapnik::datasource_exception("Shape Plugin: " + s.str());
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}
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}
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}
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