/*

* 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:   Display sub session.

*

*/

#ifndef C_ALFSRVDISPLAYSUBSESSION_H

#define C_ALFSRVDISPLAYSUBSESSION_H

#include "alfsrvsubsessionbase.h"

#include <uiacceltk/huidisplaybackgrounditem.h>

class CAlfAppSrvSessionBase;

class CHuiDisplay;

class CHuiDisplayCoeControl;

/**

 *  Display sub session.

 *

 *  @lib alfappservercore.lib

 *  @since S60 v3.2

 */

NONSHARABLE_CLASS(CAlfSrvDisplaySubSession): public CAlfSrvSubSessionBase

    {

public:

    /**

     * Two-phased constructor

     *

     * @param aSession Session in which this sub session belongs into.

     * @param aRect Display size.

     * @param aWindowGroupId Client window group ID.

     * @return New object. Ownership transferred.

     */

    static CAlfSrvDisplaySubSession* NewL( CAlfAppSrvSessionBase& aSession, 

                                           const TRect& aRect,

                                           TInt aWindowGroupId,

                                           TInt aDisplayType,

                                           const TUid& aBufferUid );

    /**

     * Two-phased constructor. Leaves the objenct onto the cleanup stack.

     *

     * @param aSession Session in which this sub session belongs into.

     * @param aRect Display size.

     * @param aWindowGroupId Client window group ID.

     * @return New object on stack. Ownership transferred.

     */

    static CAlfSrvDisplaySubSession* NewLC( CAlfAppSrvSessionBase& aSession,

                                            const TRect& aRect,

                                           TInt aWindowGroupId,

                                           TInt aDisplayType,

                                           const TUid& aBufferUid );

    /**

     * Destructor.

     */

    virtual ~CAlfSrvDisplaySubSession();

    /**

     * Returns the used display.

     *

     * @return Used display.

     */

    CHuiDisplay& Display();

    /**

     * Called when session is about to get focus.

     */

    void SetSessionFocused(TBool aFocused=ETrue);

// From CAlfSrvSubSessionBase

    /**

     * From CAlfSrvSubSessionBase

     * Can process the given message?

     *

     * @param aMessage The message.

     * @return ETrue if can process the message.

     */

    TBool CanProcessMessage(const RMessage2& aMessage) const;

    /**

     * From CAlfSrvSubSessionBase

     * Processes the message.

     *

     * @param aMessage The message.

     */

    void DoProcessMessageL(const RMessage2& aMessage);

    TBool IsTvOut() const;

    TInt DisplayType() const;

private:

    CAlfSrvDisplaySubSession( CAlfAppSrvSessionBase& aSession,

                              const TRect& aRect,

                              TInt aWindowGroupId,

                              TInt aDisplayType,

                              const TUid& aBufferUid );

    void ConstructL();

    void SetClearBackgroundL( const RMessage2& aMessage );

    void SetVisibleAreaL( const RMessage2& aMessage, TBool aForce = EFalse );

    void VisibleAreaL( const RMessage2& aMessage );

    void SetDirtyL( const RMessage2& aMessage );

    void SetQualityL( const RMessage2& aMessage );

    void QualityL( const RMessage2& aMessage );

    void SetUseDepthL( const RMessage2& aMessage );        

    void SetUsageL( const RMessage2& aMessage );

    void SetBackgroundItemsL( const RMessage2& aMessage );

    void HandlePointerEventL( const RMessage2& aMessage );

    void SuppressAutomaticFadingL( const RMessage2& aMessage );

	void SetClientWindowForDrawingL( const RMessage2& aMessage );

    /**

     * Updates non fading to container.

     */

    void UpdateAutomaticFading();

    // from subsessionbase

    CHuiDisplay* AsHuiDisplay();

    TBool UseVisualAreaClipping();

private: // data

    CHuiDisplay* iDisplay;

    TInt iDisplayType;

    TUid iScreenBufferUid;

    TRect iRect;

    TInt iDisplayClearBackground;

    TInt iDisplayRenderingQuality;

    TBool iDisplayUseDepthTest;

    TUint iDisplayUsage;

    RArray<THuiDisplayBackgroundItem> iBackgroundItems;

    TBool iAutomaticFadingSuppressed;

    };

#endif // C_ALFSRVDISPLAYSUBSESSION_H