/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:	The header file for MaptileGeocoderPlugin that provides the Geocoding

*               and Maptile  interfaces.

*

*/

#ifndef __MAPTILEGEOCODERPLUGIN_H__

#define __MAPTILEGEOCODERPLUGIN_H__

// INCLUDES

#include <e32base.h>

#include <LbsPosition.h> 

#include <EPos_CPosLandmark.h>

//Maptile geocoder plugin uid

const TUid KMaptileGeoCoderPluginUid = { 0x2002E6BE };

/**

 * Data class to get the address details. An handle to this type will be given to the

 * user through MMaptileGeocoderObserver::GeocodingCompleted callback, through which

 * user can retrieve the address details using the following interfaces.

 *

 */

class MAddressInfo

{

public:

    /**

     * Gets the latitude information.

     * 

     * @param aLatitude latitude value. 

     */

    virtual void GetLatitude( TReal& aLatitude ) = 0;

    /**

	 * Gets the longitude information.

	 * 

	 * @param aLongitude longitude value. 

	 */

    virtual void GetLongitude( TReal& aLongitude ) = 0;

};

/**

 * TMapTileParam

 * Data class containing the information required for  fetching the map tile. 

 *

 */

class TMapTileParam

{

public:

    /**

     * Parameterized constructor.

     *

     * @param aLatitude latitude value

     * @param aLongitude longitude value

     * @param aZoom  maptile zoom level

     * @param aSize requested maptile size

     *

     */

    TMapTileParam( const TReal aLatitude, const TReal aLongitude, const TInt aZoom, const TInt aSize ):

        iLattitude( aLatitude ), iLongitude( aLongitude ), iZoomLevel( aZoom ), iSize( aSize )

    {

    }

    /**

     * Default constructor

     */

    TMapTileParam()

    {

    }

public:

    // Latitude

    TReal iLattitude;

    //Longitude

    TReal iLongitude;

    //Zoom level

    TInt iZoomLevel;

    //Required image size

    TInt iSize;

};

/**

 * TConnectionOption

 * Data class containing the connection options.

 *

 */

enum TConnectionOption

{

    //Interactive connection

    EInteractive = 0,

    //Silent connection

    ESilent

};

/**

 * Observer class which exposes callbacks to notify the completion of geocoding 

 * and maptile fetching events.

 *

 */

class MMaptileGeocoderObserver

{

public:

    /**

     * Callback function which notifys the completion of geocoding service. 

     * This signals the completion of the asynchronous function 

     * CMaptileGeocoderPlugin::GetCoordinateByAddressL.

     * 

     *  @param aErrorcode Error status KErrNone in case of success or other system 

     *                    specific errorcodes in case of failures.

     *                       

     *  @param aAddressInfo refrence to the address stucture, through which user can 

     *                      access the coordinate information. 

     */

    virtual void GeocodingCompleted( TInt aErrorcode, MAddressInfo& aAddressInfo ) = 0;

    /**

     * Callback function which notifys the completion of Maptile fetching event. 

     * This signals the completion of the asynchronous function 

     * CMaptileGeocoderPlugin::GetMapTileByGeoCode.

     * 

     * @param aErrorcode Error status KErrNone in case of success or other system 

     *                   specific errorcodes in case of failures.

     *						

     * @param aMapImagePath Maptile image path

     *					   

     */

    virtual void MapTileFetchingCompleted( TInt aErrorcode, const TDesC& aMapImagePath ) = 0;

};

/**

 * CMaptileGeocoderPlugin

 *

 * An interface of the CMaptileGeocoderPlugin encapsulates the goecoding  and 

 * maptile fetching functionality. It acts as a base, for a concrete implementation 

 * class to provide all the functionality that a client requires from a 

 * CMaptileGeocoderPlugin implementation.

 *

 */

class CMaptileGeocoderPlugin : public CBase

{

public:

    /**

	 * Create instance of CMaptileGeocoderPlugin concrete implementation. 

	 * @return: Instance of this class.

	 */

    static CMaptileGeocoderPlugin* NewL();

    /**

	 * Destructor.

  	 */

    virtual ~CMaptileGeocoderPlugin();

public:

    /**

	 * Initializes the ReverseGeoCodeObserver

	 * @param: aObserver The observer class instance that is to be notified when 

	 *         geocoding and maptile fetching service completes.

	 * 

	 */

    virtual void SetMaptileGeocoderObserver( MMaptileGeocoderObserver& aObserver ) = 0;

    /**

     * Gets the geo-coordinate information for the given address. This is an 

     * asynchronous function whose completion will be notified by the 

     * MMaptileGeocoderObserver::GeocodingCompleted callback.

     * 

     * @param aLandmark Landmark containing the address informations.

     * @param aOption  OCC setting option

     *

     */

	virtual void GetCoordinateByAddressL( const CPosLandmark& aLandmark,  

                       const TConnectionOption aOption = EInteractive ) = 0;

    /**

     * Gets the geo-coordinate information for the given address. This is an 

     * asynchronous function whose completion will be notified by the 

     * MMaptileGeocoderObserver::GeocodingCompleted callback.

     * 

     * @param aAddressDetails , containing the address informations.

     * @param aOption  OCC setting option

     *

     */                   

    virtual void GetCoordinateByAddressL( const TDesC& aAddressDetails,  

	                       const TConnectionOption aOption = EInteractive ) = 0;

    /**

     * Gets the maptile image path for the given geocordinates. This is an 

     * asynchronous function whose completion will be notified by the 

     * MMaptileGeocoderObserver::MapTileFetchingCompleted callback.

     * 

     * @param aMapTileParam Object containing the geocoordinate, zoom level 

     *        informations.

     * @param aFilePath  Path where the maptile image should  be stored.

     *

     */

    virtual void GetMapTileByGeoCodeL( TMapTileParam& aMapTileParam,

                                       const TDesC& aFilePath ) = 0;

private:

    /**

	 * iDtorKey

	 * Identification of the plugin on cleanup

 	 */

    TUid iDtorKey;

};

#include "maptilegeocoderplugin.inl"

#endif //__MAPTILEGEOCODERPLUGIN_H__

//End of file