/*

* Copyright (c) 2008-2009 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:    Header for class to implement Single line metapane

*

*/

#ifndef GLXMETADATACONTROL_H_

#define GLXMETADATACONTROL_H_

#include <alf/alfControl.h>

#include <mglxmedialistobserver.h>

#include "glxfullscreenviewimp.h"

enum TGlxControlGroupId

    {

    //List View

    EMetaOrinentaionPortrait = 10,

    EMetaOrinentaionLandscape = 20

    };

// Forward decleartion

class CAlfEnv;

class CAlfAnchorLayout;

class CAlfGridLayout;

class CAlfDeckLayout;

class CAlfImageVisual;

class CAlfTextVisual;

class CAlfImageBrush;

class CAlfBorderBrush;

class MGlxMediaList;

class CGlxDefaultAttributeContext;

class CGlxUiUtility;

class TGlxMedia;

class CGlxTextureManager;

class CGlxSLMPFavMLObserver;

/*

 * This is an observer class to observe the favourites attribute change and pass it back to the metapane

 * for updating its favourite icon 

 */

class MGlxSLMPObserver

    {

public:

    virtual void HandleUpdateIconL(TBool aModify) = 0;

    };

/*

 * For craeting and maintaining the Single Line metapane 

 */

class CGlxSingleLineMetaPane: public CAlfControl,

                            public MGlxMediaListObserver,

                            public MGlxSLMPObserver

     {

public:

    /*

     * NewL()

     */

    static CGlxSingleLineMetaPane* NewL( CGlxFullScreenViewImp& aFullscreenView,

            MGlxMediaList& aMediaList, CGlxUiUtility& aUiUtility);

    /*

     * destructor

     */

    ~CGlxSingleLineMetaPane();

    /*

     * Show/Hide the Metapane

     */

    void ShowMetaPane(TBool aShow);

public://frm CAlControl

    TBool OfferEventL(const TAlfEvent &aEvent);

    void VisualLayoutUpdated(CAlfVisual& aVisual);

public: // from MGlxMediaListObserver

    void HandleItemAddedL( TInt /*aStartIndex*/, TInt /*aEndIndex*/, MGlxMediaList* /*aList*/ );

    void HandleItemRemovedL( TInt /*aStartIndex*/, TInt /*aEndIndex*/, MGlxMediaList* /*aList*/);

    void HandleAttributesAvailableL( TInt aItemIndex, 

        const RArray<TMPXAttribute>& /*aAttributes*/, MGlxMediaList* aList );    

    void HandleFocusChangedL( NGlxListDefs::TFocusChangeType /*aType*/, 

        TInt aNewIndex, TInt aOldIndex, MGlxMediaList* aList );

    void HandleItemSelectedL(TInt /*aIndex*/, TBool /*aSelected*/, MGlxMediaList* /*aList*/ );

    void HandleMessageL( const CMPXMessage& /*aMessage*/, MGlxMediaList* /*aList*/ );

    void HandleError( TInt /*aError*/ );

    void HandleCommandCompleteL( CMPXCommand* /*aCommandResult*/, TInt /*aError*/, 

        MGlxMediaList* /*aList*/ );

    void HandleMediaL( TInt /*aListIndex*/, MGlxMediaList* /*aList*/ );

    void HandleItemModifiedL( const RArray<TInt>& /*aItemIndexes*/, MGlxMediaList* /*aList*/ );

public:// MGlxSLMPObserver

    virtual void HandleUpdateIconL(TBool aModify);

private:

    /*

     * Constructor

     */

    CGlxSingleLineMetaPane(CGlxFullScreenViewImp& aFullscreenView,

            MGlxMediaList& aMediaList,CGlxUiUtility& aUiUtility);

    /*

     * ConstructL()

     */

    void ConstructL();

    /*

     * Creating the grid

     */

    void CreateGridL();

    /*

     * Update position

     */

    void UpdatePosition();

    /*

     * Determines the orientation of the view

     */

    TInt DetermineOrientation(TRect aRect);

    /*

     * This is called from handleattributes available, it updtates the 

     * metapane values for each item 

     */

    void UpdateAttributesInMetaPane(TMPXAttribute aAtrribute, 

            TInt aFocusIndex, const TGlxMedia& item);

    /*

     * This is called from handleattributes available and focus changed, it updtates the 

     * metapane values for focus item

     */

    void UpdateMetaPaneL(TInt aFocusIndex, MGlxMediaList* aList, 

            TBool aUpdateFavIcon = EFalse);

    /*

     * This creates the icons for Favourites and Location Icon and then 

     * updates the respective image visuals

     */

    void CreateIconTextureAndUpdateVisualsL();

    TRect GetScreenSize();

private:

    CGlxFullScreenViewImp&          iFullscreenView;        // Fullscreenview

    MGlxMediaList&                  iMediaList;             // MGlxMedialist passed from FS view

    CGlxUiUtility&                  iUiUtility;             // CGlxUiUtility passed from FS view

    CGlxDefaultAttributeContext*    iAttribContext;         // CGlxDefaultAttributeContext 

    CAlfEnv*               iEnv;                            // Alf Env

    CAlfDisplay*           iDisplay;                        // Alf Display  

    CAlfAnchorLayout*      iMainVisual;                     // Anchor Layout

    CAlfGridLayout*        iGridVisual;                     // Grid layout

    CAlfGridLayout*        iLocationGridVisual;             // Grid layout

    CGlxSLMPFavMLObserver* iSLMPFavMLObserver;              // Single line metapane medialist observer

    CAlfImageVisual*    iBackgroundBorderImageVisual;       // Background Image Visual

    CAlfTextVisual*     iDateTextVisual;                    // Date Text

    CAlfImageVisual*    iFavIconImageVisual;                // Location Icon

    CAlfImageVisual*    iLocIconImageVisual;                // Size Text

    CAlfTextVisual*     iLocationTextVisual;                // Location Text

    CAlfTexture*        iFavAddedIconTexture;               // Fav Added Icon Texture ( Yellow Icon ) 

    CAlfTexture*        iFavNotAddedIconTexture;            // Fav Not Added Icon Texture ( Black Icon )

    CAlfBorderBrush*    iBorderBrush;                       // Border brush for background image visual

    TRect               iScreenSize;                        // To store the screen size

    TBool               iFavIconStatus;                     // ETrue when the item is in favourites else EFalse

    };

#endif /* GLXMETADATACONTROL_H_ */