//
// Open Service Platform
// Copyright (c) 2012 Samsung Electronics Co., Ltd.
//
// Licensed under the Apache License, Version 2.0 (the License);
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

/**
 *
 * @file	FLoc_MathUtils.h
 * @brief	This is the header file for the _MathUtils class.
 *
 * This header file contains declaration of the _MathUtils class.
 *
 */

#ifndef _FLOC_INTERNAL_MATH_UTILS_H_
#define _FLOC_INTERNAL_MATH_UTILS_H_

namespace Tizen { namespace Base { namespace Collection
{
	class IList;
}}}

namespace Tizen { namespace Locations
{

// forward declaration
class Location;
class _RegionInfo;

/**
 * @class   _MathUtils
 * @since 2.0
 *
 * This class provides fundamental constants and operations for helping mathematical calculation.
 */
class _MathUtils
{
public:
	// This method calculates the overlapped area between a region circle and the location uncertainty circle with horizontal accuracy as the radius.
	// @since 2.0
	//
	static double CalculateOverlapRegion(const _RegionInfo& region, const Location& location);

	// This method returns the distance between the user's current location and the the nearest boundary among the added monitoring regions.
	// @since 2.0
	//
	static double GetShortestDistance(const Location& location, const Tizen::Base::Collection::IList& regionList);


public:
	static const double PI;
	static const double PI2;
	static const double DEG2RAD;
	static const double RAD2DEG;
	static const double HALFPI;
	static const double CENTRE_LATITUDE;

private:
	_MathUtils(void);
};  // class _MathUtils

} } // Tizen::Locations

#endif // _FLOC_INTERNAL_MATH_UTILS_H_