/***************************************************************************** * * This file is part of Mapnik (c++ mapping toolkit) * * Copyright (C) 2011 Artem Pavlenko * * This library 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 2.1 of the License, or (at your option) any later version. * * This library 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 this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * *****************************************************************************/ //$Id$ #ifndef GEOS_FEATURE_PTR_HPP #define GEOS_FEATURE_PTR_HPP // geos #include <geos_c.h> class geos_feature_ptr { public: geos_feature_ptr () : feat_ (NULL) { } explicit geos_feature_ptr (GEOSGeometry* const feat) : feat_ (feat) { } ~geos_feature_ptr () { if (feat_ != NULL) GEOSGeom_destroy(feat_); } void set_feature (GEOSGeometry* const feat) { if (feat_ != NULL) GEOSGeom_destroy(feat_); feat_ = feat; } GEOSGeometry* operator*() { return feat_; } private: GEOSGeometry* feat_; }; class geos_wkb_ptr { public: geos_wkb_ptr (GEOSGeometry* const geometry) : data_ (NULL), size_ (0) { data_ = GEOSGeomToWKB_buf(geometry, &size_); } ~geos_wkb_ptr () { if (data_ != NULL) GEOSFree(data_); } bool is_valid() const { return (data_ != NULL) && (size_ > 0); } unsigned int size() const { return (unsigned int) size_; } const char* data() { return reinterpret_cast<const char*>(data_); } private: unsigned char* data_; size_t size_; }; #endif // GEOS_FEATURE_PTR_HPP