108 lines
2.3 KiB
C++
108 lines
2.3 KiB
C++
/*****************************************************************************
|
|
*
|
|
* 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
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#ifndef GEOS_FEATURE_PTR_HPP
|
|
#define GEOS_FEATURE_PTR_HPP
|
|
|
|
// geos
|
|
#include <geos_c.h>
|
|
#include <cstdlib>
|
|
|
|
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)
|
|
{
|
|
// We use std::free here instead of GEOSFree(data_) to support geos 3.1.0
|
|
std::free(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
|
|
|