/*

* 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:   Client class for the alfredserver.exe

*

*/

#ifndef R_ALFCLIENT_H

#define R_ALFCLIENT_H

#include <alf/alfconstants.h>

#include <alf/alfclientbase.h>

#include "alf/alfvisual.h"

#include "alf/alflayout.h"

#include "alf/alfenv.h"

#include "alf/alftexture.h"

#include "alf/alfimage.h"

#include "alf/alfroster.h"

#include "alf/alfbatchbuffer.h"

#include <AknsItemID.h>

#include <gdi.h>

/**

 *  Alfred client.

 *

 *  @lib alfclient.lib

 *  @since S60 v3.2

 */

NONSHARABLE_CLASS( RAlfClient ): public RAlfClientBase

    {

public:

    /**

     * Constructor

     */

    RAlfClient();

    /**

     * Disconnect from the server. Must be called before destruction (not just Close() )

     */ 

    void Disconnect();

// Env

    /**

     * Sets the refresh mode.

     *

     * @Todo: should be protected with capability or deprecated completely(?)

     * @param aMode  New refresh mode.

     *

     * @see TAlfRefreshMode

     */

    void EnvSetRefreshMode( TAlfRefreshMode aMode );

    /**

     * @Todo: should be protected with capability or deprecated completely(?)

     * Sets the maximum allowed frame rate. Specify 0.0 to use the default limit.

     *

     * @param aFrameRate  New maximum frame rate in frames per second.

     */

    void EnvSetMaxFrameRate( TReal32 aFrameRate );

    /**

     * Continues normal display refreshing. If display refreshing is already

     * being done, calling this has no effect. This is called automatically

     * from inside the toolkit when something is done that may lead to a

     * visible change on a display. The application may also call this if it

     * has previously paused refresh with PauseRefresh().

     */

    void EnvContinueRefresh();

    /**

     * Pauses display refreshing temporarily. This is called when it is clear

     * that any displays will not be updated soon. The application may call

     * this at times when it needs more processing time for other tasks.

     */

    void EnvPauseRefresh();

    /**

     * Called on manual refresh.

     */

    void EnvRefreshCallBack();

    /**

     * Determines which renderer is currently in use. Always returns the real

     * explicit identifier of the renderer, and not an ambiguous identifier

     * like "Default".

     */

    TInt EnvRenderer() const;

    /**

     * Sets the interval before an idle notification is sent. 

     *

     * @param aSeconds  Threshold in milliseconds.

     */

    void EnvSetIdleThreshold(TInt aMilliseconds);

// Roster

    /**

     * Shows given control group in the roster using given display.

     *

     * @param aCntrlGroupHandle Handle to the server side object.

     * @param aWhere Where on the roster (top/under/middle/...)

     * @param aDisplayHandle Handle to the server side object.

     * @return Error code.

     */

    TInt RosterShow( TInt aCntrlGroupHandle, TInt aWhere, TInt aDisplayHandle );

    /**

     * Hides given control group.

     *

     * @param aCntrlGroupHandle Handle to the server side object.

     * @param aDisplayHandle Handle to the server side object.

     * @return Error code.

     */

    TInt RosterHide( TInt aCntrlGroupHandle, TInt aDisplayHandle );

    TInt RosterShowVisual( TInt aVisualHandle, TInt aDisplayHandle );

    TInt RosterHideVisual( TInt aVisualHandle,  TInt aDisplayHandle );

    TInt RosterMoveVisualToFront( TInt aVisualHandle, TInt aDisplayHandle );

    TInt RosterSetPointerEventObservers( TInt aFlags, TInt aCntrlHandle, TInt aDisplayHandle );

    TInt RosterAddPointerEventObserver( TAlfPointerEventFlags aObserver, TInt aCntrlHandle, TInt aDisplayHandle );

    TInt RosterRemovePointerEventObserver( TAlfPointerEventFlags aObserver, TInt aCntrlHandle, TInt aDisplayHandle );

    TInt RosterSetPointerDragTreshold( TInt aCntrlHandle, const TAlfXYMetric& aXYMetric, TInt aDisplayHandle );

    TInt RosterDisableLongTapEventsWhenDragging( TInt aCntrlHandle, TBool aDisable, TInt aDisplayHandle );

// Static

// Texture 

    /**

     * Updates owner id.

     * This method must be called before calling other texture related methods.

     * @return Error code.

     */

    TInt TextureUpdateOwnerId();

    /**

     * Creates new texture. Leaves on error.

     *

     * @param aId ID of the texture.

     * @param aFlags Texture flags.

     * @param aFilename the filename of the image

     * @return Error code.

     */

    TInt TextureCreateAnimatedL(TInt aId, TAlfTextureFlags aFlags, TInt aManagerId, const TDesC& aFilename);

    /**

     * Creates new texture. Leaves on error.

     *

     * @param aId ID of the texture.

     * @param aBitmapHandle Handle to the bitmap.

     * @param aMaskBitmapHandle Handle to the bitmap mask.

     * @param aFlags Texture flags.

     * @param aManagerId Id of texture manager

     * @return Error code.

     */

    TInt TextureCreateL( TInt aId, TInt aBitmapHandle, TInt aMaskBitmapHandle, TAlfTextureFlags aFlags, TInt aManagerId );

    /**

     * Loads texture. Leaves on error.

     *

     * @param aId ID of the texture.

     * @param aBitmapHandle Handle to the bitmap.

     * @param aMaskBitmapHandle Handle to the bitmap mask.

     * @param aFlags Texture flags.

     * @param aManagerId Id of texture manager

     * @return Error code.

     */

	TInt TextureLoadL( TInt aId, TInt aBitmapHandle, TInt aMaskBitmapHandle, TAlfTextureFlags aFlags, TInt aManagerId  );

    /**

     * Unloads given texture. 

     *

     * @param aId ID of the texture.

     * @param aManagerId Id of texture manager

     * @return Error code.

     */

	TInt TextureUnload( TInt aId, TInt aManagerId );

    /**

     * Releases given texture.

     * @param aId ID of the texture.

     * @param aManagerId Id of texture manager

     * @return Error code.

     */

	TInt TextureRelease( TInt aId, TInt aManagerId );

    /**

     * Restores given texture.

     * @param aId ID of the texture.

     * @param aManagerId Id of texture manager

     * @return Error code.

     */

	TInt TextureRestore( TInt aId, TInt aManagerId );

    /**

     * Notifies skin change for given texture.

     * @param aId ID of the texture.

     * @param aManagerId Id of texture manager

     * @return Error code.

     */

	TInt TextureNotifySkinChanged( TInt aId, TInt aManagerId );

    /**

     * Blurs given texture. 

     *

     */

	TInt TextureProcessorBlurL( const TInt aServerSideSrcHandle, 

	    TInt aServerSideDstHandle, 

	    TInt aManagerId, 

	    const TSize& aPreferredSize, 

	    TInt aFilterSize, 

	    TInt aFlag );

    /**

     * Checks if given texture has content. 

     *

     */

	TInt TextureHasContent( TBool& aHasContent, TInt aId, TInt aManagerId );

    /**

     * Delete given texture. 

     *

     * @param aId ID of the texture.

     * @param aManagerId Id of texture manager

     * @return Error code.

     */

	TInt TextureDelete( TInt aId, TInt aManagerId );

    /**

     * Starts to animate the texture if the texture

     * was animated.

     *

     * @param aId ID of the texture.

     */

    TInt TextureStartAnimation( TInt aId );

    /**

     * Stops the texture animation if the texture

     * was animated.

     *

     * @param aId ID of the texture.

     */

    TInt TextureStopAnimation( TInt aId );

    /** 

     * Notifies texture information.

     * @param aStatus request status.

     * @param aDest destination buffer which will contain events.

     */

    void TextureNotifyInfo( TRequestStatus& aStatus, TDes8& aDest );

    /**

     * Cancels texture information notification.

     */

    void TextureCancelNotifyInfo();

    /**

     * Sets parameters for the preferred size calculation.

     * 

     * @param aId ID of the texture.

     * @param aManagerId Id of texture manager

     * @param aParams auto size paramters.

     */

    TInt TextureSetAutoSizeParams( TInt aId, TInt aManagerId, const TAlfTextureAutoSizeParams& aParams );

// Misc

    /**

    * Notify server about this application foreground status

    */ 

    void ApplicationIsForeground(TBool aIsPartiallyOrFullyForeground);

    void RequestPointerEvents(TDes8& aEventAsDescriptor, TRequestStatus& aStatus);

    void CancelPointerEvents();

    void SetFullScreenDrawing(TBool aEnable);

    TInt LayoutMetricsTextStyleData(TInt& aFontCategory, TInt aTextStyle);

    void RequestSystemEvents(TDes8& aEventAsDescriptor, TRequestStatus& aStatus);

    void CancelSystemEvents();

    void SetWgParent(TInt aParentId);

    /** 

     * Generic command

     */

	void SendCmd(TUint aCmd, TDes8& aBuf);

    /** 

     * Generic synchronous command

     */

	TInt SendSyncCmd(TUint aCmd, TDes8& aBuf);

    /** 

     * Generic asynchronous command

     */

	void SendAsyncCmd(TUint aCmd, TDes8& aBuf, TRequestStatus& aStatus);

    TInt SendNoReply(TUint aOp, const TDesC8& aInputBuf, TInt aSubSessionHandle);

    TAlfAutoFlushMode AutoFlushMode() const;

    void SetAutoFlushMode( TAlfAutoFlushMode aAutoFlushMode );

    TInt FlushBatchBuffer();

    void SetMaxBatchBufferSize( TInt aBufferSize );

    TInt GetBatchBufferInfo( TAlfBatchBufferInfoType aBufferInfoType ) const;

   /** 

    * Post QT command buffer to server side canvas

    */

    TInt PostQtBuffer( TInt aWsWgId, TInt aWsClientId, TDes8& aCommandBuffer, 

           TAlfCommandBufferStatus aStatus );

private:

    TInt AllocateExtendedBuffer( TInt aMoreSpaceNeeded );

    inline static void AppendPadding( TDes8& aBuffer, TInt aAmount );

private:

    HBufC8* iDefaultBatchBuffer; // owned

    HBufC8* iExtendedBatchBuffer; // owned

    HBufC8* iUsedBatchBuffer; // not owned. points to iDefaultBatchBuffer or iExtendedBatchBuffer

    class CBatchBufferAutoFlusher;

    CBatchBufferAutoFlusher* iAutoFlusher;

    TAlfAutoFlushMode iAutoFlushMode;

    TInt iUsedMaxBufferSize;

    };

#endif // R_ALFCLIENT_H