/*

* Copyright (c) 2006 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:  CMnrpMapControl class definition

*

*/

#ifndef MNRP_MAPCONTROL_H

#define MNRP_MAPCONTROL_H

#include <coecntrl.h>

#include "mnrpmapmodel.h"

class CMnrpEngine;

class CMnrpMapView;

/** Map view. Draws map on screen using information from 

 	CMnrpMapModel.

 */

class CMnrpMapControl : public CCoeControl, public MMapModelObserver

    {

    public: 

        static CMnrpMapControl* NewL( CMnrpMapView& aView, const TRect& aRect, CMnrpEngine& aEngine );

        virtual ~CMnrpMapControl();

        void UpdateModelL( CMnrpMapViewService& aService );

        void SetSelectionModeL( TBool aSelectionMode );

        /** Returns current cursor location in selection mode */

        TCoordinate CurrentLocation();

        void ToggleFullScreen();

    public:  // from CCoeControl

        void Draw( const TRect& aRect ) const;

        TKeyResponse OfferKeyEventL( const TKeyEvent& aKeyEvent, TEventCode aType );

        void SizeChanged();

        void HandleResourceChange( TInt aType );

    public:  // from MMapModelObserver

		/** Redraws itself when model is updated */

        void HandleModelUpdateL();

    private:

        CMnrpMapControl( CMnrpMapView& aView );

        void ConstructL( const TRect& aRect, CMnrpEngine& aEngine );

        void DrawCursor( CWindowGc& aGc ) const;

		/** Draws text around map

		 *	Top area - left longitude, cell size, right longitude

		 *	Left area - top latitude, bottom latitude

		 *	Bottom area - center coordinates

		 */

        void DrawGridText( 

            CWindowGc& aGc, 

            const TRect& aInnerBox,

            const TRect& aOuterBox,

            const CFont* aFont,

            CMnrpMapModel::TGrid& aGrid ) const;

        /** Helper to find out border size based on font dimensions */

        TSize BorderSize() const;

		/** Returns specifications of used font */

        TFontSpec SmallFontSpec( TInt aFontHeightInTwips ) const;

        void MoveCursor( TInt aXmove, TInt aYmove );

        TRect CursorMargin();

        void Zoom( TReal aRate );

        void SetFullScreen( TBool aFullScreen );

		void CreateFonts();

		void DestroyFonts();

		void CreateScreenBufferL( const TSize& aSize );

        void RenderL();

    private:

        /** Parent view */

        CMnrpMapView& iView;

    	/** Model */

        CMnrpMapModel* iModel;

        TSize iViewSize;

        TBool iSelectionMode;

        TPoint iCursor;

        TCoordinate iAbsoluteCursor;

        /** Whether fullscreen mode on or off*/

        TBool iIsFullScreen;

        mutable CFbsBitmap* iOffScreenBitmap;

        CFont* iTextFont;

        CFont* iItemFont;

    };

#endif // MNRP_MAPVIEW_H