/*

* Copyright (c) 2007 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:   Text visual attribute setter header.

*

*/

#ifndef ALFLCTTEXTVISUALATTRIBUTESETTER_H

#define ALFLCTTEXTVISUALATTRIBUTESETTER_H

#include "alf/alftextvisualattributesetter.h"

namespace Alf

    {

/** @class AlfLctTextVisualAttributeSetter alflcttextvisualattributesetter.h "alf/alflcttextvisualattributesetter.h"

 *  The implementation of the attribute setter.

 *

 *  @interfaces IAlfAttributeSetter

 *  @lib alfwidgetmodel.lib

 *  @since S60 ?S60_version

 *  @status Draft

 */

class AlfLctTextVisualAttributeSetter : public AlfTextVisualAttributeSetter

    {

public:

    /**

     * Constructor.

     *

     * @param aType Type of the attribute setter.

     */

    OSN_IMPORT AlfLctTextVisualAttributeSetter();

    /**

     * Destructor.

     */

    OSN_IMPORT virtual ~AlfLctTextVisualAttributeSetter();

// from base class MAlfAttributeSetter

    /**

     * Sets the attribute values to the target visual.

     *

     * @exception osncore::AlfVisualException Thrown with the error code osncore::EInvalidVisual\n 

     *										  when supplied visual is not a lct text visual.

     * @since S60 ?S60_version

     * @param aVisual The target visual. Doesn't take ownership

     * @param aContainer The container holding the value of the attributes.

     *        Ownership of the object is not transferred.

     * @param aData Used with data attributes to fetch the data.

     */

    OSN_IMPORT void setAttributeValue (

        CAlfVisual &aVisual,

        AlfAttributeContainer* aContainer,

        IAlfMap* aData );

    /**

     * Creates a command to change the value of an attribute in the target visual

     * gradually with a transition.

     *

     * @param aVisual The target visual. Doesn't take ownership

     * @param aContainer The container holding the new value of the attribute.

     *        Ownership of the object is not transferred.

     * @param aData Not used currently.

     * @param aTransitionTime Time used for the transition.

     * @param aRefVisual Optional reference visual. If not NULL, the target value

     *        of the attribute is defined by adding the value specific by aContainer

     *        to the corresponding attribute value in the reference visual.

     * @ret The command to gradually change the attribute in the target visual.

     */

    OSN_IMPORT virtual TAlfCommand* createCommand(

        CAlfVisual& aVisual, AlfAttributeContainer* aContainer, IAlfMap* aData,

        int aTransitionTime = 0, CAlfVisual* aRefVisual = NULL);

    /**

     * Creates commands to change the given attribute values in the target visual

     * gradually with a transition.Then sends the commands via the ALF environment.

     *

     * @param aVisual The target visual. Doesn't take ownership

     * @param aContainer The attribute container holding the attribute value(s)

     * used by the attribute setter. Ownership is not transferred. The container

     * can hold new values for multiple different attributes, in which case several

     * commands are executed.

     * @param aRefVisual Optional reference visual. If not NULL, the target value

     *        of the attribute is defined by adding the value specific by aContainer

     *        to the corresponding attribute value in the reference visual.

     */

    OSN_IMPORT virtual void createAndSendCommands(CAlfVisual& aVisual,

            AlfAttributeContainer* aContainer, CAlfVisual* aRefVisual = NULL);

protected:

    /**

     * Sets an dynamic attribute value in the target visual

     * using transitions defined in attributes.

     *

     * @since S60 ?S60_version

     * @param aVisual The target visual. Doesn't take ownership

     * @param aAttr The attribute to process. Doesn't take ownership

     * @param aContainer The container holding attributes.

     *        Ownership of the object is not transferred.

     */

    virtual void handleDynamicAttribute(CAlfVisual &aVisual,

                                        AlfAttribute& aAttr, AlfAttributeContainer& aContainer);

    /**

     * Sets an value for static attribute in the target visual immediately

     * without a transition using data in map.

     *

     * @since S60 ?S60_version

     * @param aVisual The target visual. Doesn't take ownership

     * @param aAttr The attribute to process. Doesn't take ownership

     * @param aContainer The container holding attributes.

     *        Ownership of the object is not transferred.

     * @param aData Contains data.Ownership of the object is not transferred.

     */

    virtual void handleStaticDataAttribute(CAlfVisual &aVisual,

                                           AlfAttribute& aAttr, AlfAttributeContainer& aContainer, IAlfMap* aData);

    /**

     * Sets an value for dynamic attribute value in the target visual

     * using transitions and data in map.

     *

     * @since S60 ?S60_version

     * @param aVisual The target visual. Doesn't take ownership

     * @param aAttr The attribute to process. Doesn't take ownership

     * @param aContainer The container holding attributes.

     *        Ownership of the object is not transferred.

     * @param aData Contains data.Ownership of the object is not transferred.

     */

    virtual void handleDynamicDataAttribute(CAlfVisual &aVisual,

                                            AlfAttribute& aAttr, AlfAttributeContainer& aContainer, IAlfMap* aData);

    /**

     * Sets an value of a static attribute to target visual immediately

     * without a transition.

     *

     * @since S60 ?S60_version

     * @param aVisual The target visual. Doesn't take ownership

     * @param aAttr The attribute to process. Doesn't take ownership

     * @param aContainer The container holding attributes.

     *        Ownership of the object is not transferred.

     */

    virtual void handleStaticAttribute(CAlfVisual &aVisual,

                                       AlfAttribute& aAttr, AlfAttributeContainer& aContainer);

private: // data

    };

    } // namespace Alf

#endif // ALFLCTTEXTVISUALATTRIBUTESETTER_H