/*

* 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:  Header file for CCamLineVfGridDrawer class.

*

*/

#ifndef CAMLINEDRAWVFGRID_H

#define CAMLINEDRAWVFGRID_H

#include <gdi.h> // TRgb

#include "camvfgridinterface.h"

const TInt KCamLineDrawVfGridUid = 0x07700770;

class CBitmapContext;

/**

*

* CCamLineVfGridDrawer class.

*

*/

class CCamLineVfGridDrawer : public CBase,

                             public MCamVfGridDrawer

  {

  // ------------------------------------------------------------------------

  // Public part

  public:

    typedef RArray<TRect> RLineArray;

  public: // Construction / destruction --------------------

    static CCamLineVfGridDrawer* NewL();

    virtual ~CCamLineVfGridDrawer();

  public: // From MCamVFGridDrawer -------------------------

    /**

    * Init the drawer.

    * @param aParam Not used.

    */

    virtual void  InitL( TAny* aParam );

    /**

    * Draw the full grid.

    */

    virtual void  Draw( CBitmapContext& aGc ) const;

    /**

    * Draw part of the grid.

    * Only pure horizontal and pure vertical lines are

    * supported if partial redraw is used.

    */

    virtual void  Draw( const TRect&          aRect,

                              CBitmapContext& aGc   ) const;

    /**

    * Set the grid visibility. 

    * If visibility is set to false, drawing is not done.

    * @param aVisible Is the grid visible.

    */

    virtual void  SetVisible( TBool aVisible );

    /**

    * Get the grid visibility setting.

    * @return Is grid visible.

    */

    virtual TBool IsVisible() const;

  public: // New methods

    /**

    * SetLines

    * @param aLineArray     Pointer to array containing the new lines

    *                       to be used when drawing VF grid.

    *                       TRect::iTL and TRect::iTL define the end

    *                       points of a line.

    * @param aLineCount     Line count is array. Ignored if aLineArray is NULL.

    * @param aTakeOwnerShip Is ownership of aLineArray transferred.

    *     

    */

    void SetLinesL( const RLineArray& aLineArray );

    void SetLinesL( const TRect& aDrawingRect, 

                          TInt   aHorizontalLines, 

                          TInt   aVerticalLines,

                          TBool  aBorderedGrid = EFalse );

    void SetPenStyle( const CGraphicsContext::TPenStyle& aPenStyle ); 

    void SetPenSize ( const TSize& aPenSize );

    void SetPenColor( const TRgb aPenColor );

  // ------------------------------------------------------------------------

  // Protected part

  protected:

    void ConstructL();

  // ------------------------------------------------------------------------

  // Private part

  private:

    CCamLineVfGridDrawer();

  private: // Data

    // Line properties

    RLineArray iLineArray;      // Line end locations

    TBool      iVisible;        // Visibility of lines

    // Drawing parameters

    CGraphicsContext::TPenStyle iPenStyle;

    TSize                       iPenSize;

    TRgb                        iPenColor;

  };

#endif