/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2011 Sandro Santilli <strk@keybit.net>
 * Copyright (C) 2005-2006 Refractions Research Inc.
 * Copyright (C) 2001-2002 Vivid Solutions Inc.
 *
 * This is free software; you can redistribute and/or modify it under
 * the terms of the GNU Lesser General Public Licence as published
 * by the Free Software Foundation. 
 * See the COPYING file for more information.
 *
 **********************************************************************
 *
 * Last port: geom/MultiLineString.java r320 (JTS-1.12)
 *
 **********************************************************************/

#include <geos/algorithm/CGAlgorithms.h>
#include <geos/geomgraph/GeometryGraph.h>
#include <geos/geom/MultiLineString.h>
#include <geos/geom/LineString.h>
#include <geos/geom/GeometryFactory.h>
#include <geos/geom/Dimension.h>

#include <vector>
#include <cassert>

#ifndef GEOS_INLINE
# include "geos/geom/MultiLineString.inl"
#endif

using namespace std;
using namespace geos::algorithm;
//using namespace geos::operation;
using namespace geos::geomgraph;

namespace geos {
namespace geom { // geos::geom

/*protected*/
MultiLineString::MultiLineString(vector<Geometry *> *newLines,
		const GeometryFactory *factory)
	:
	Geometry(factory),
	GeometryCollection(newLines,factory)
{
}

MultiLineString::~MultiLineString(){}

Dimension::DimensionType
MultiLineString::getDimension() const {
	return Dimension::L; // line
}

int MultiLineString::getBoundaryDimension() const {
	if (isClosed()) {
		return Dimension::False;
	}
	return 0;
}

string MultiLineString::getGeometryType() const {
	return "MultiLineString";
}

bool MultiLineString::isClosed() const {
	if (isEmpty()) {
		return false;
	}
	for (size_t i = 0, n = geometries->size(); i < n; ++i) {
		LineString *ls = dynamic_cast<LineString*>((*geometries)[i]);
		if ( ! ls->isClosed() ) {
			return false;
		}
	}
	return true;
}

Geometry*
MultiLineString::getBoundary() const
{
	if (isEmpty()) {
		return getFactory()->createGeometryCollection(NULL);
	}
	//Geometry *in = toInternalGeometry(this);
	GeometryGraph gg(0, this);
	CoordinateSequence *pts=gg.getBoundaryPoints();
	Geometry *ret = getFactory()->createMultiPoint(*pts);
	return ret;
}

bool
MultiLineString::equalsExact(const Geometry *other, double tolerance) const
{
    if (!isEquivalentClass(other)) {
      return false;
    }
	return GeometryCollection::equalsExact(other, tolerance);
}
GeometryTypeId
MultiLineString::getGeometryTypeId() const {
	return GEOS_MULTILINESTRING;
}

MultiLineString*
MultiLineString::reverse() const
{
	size_t nLines = geometries->size();
	Geometry::NonConstVect *revLines = new Geometry::NonConstVect(nLines);
	for (size_t i=0; i<nLines; ++i)
	{
		LineString *iLS = dynamic_cast<LineString*>((*geometries)[i]);
		assert(iLS);
		(*revLines)[nLines-1-i] = iLS->reverse();
	}
	return getFactory()->createMultiLineString(revLines);
}

} // namespace geos::geom
} // namespace geos