vtuis/videotelui/inc/commands/cvtuicommandmodifybase.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 23 Nov 2009 14:47:47 +0200
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/*
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* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Command modifier base class definition.
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*
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*/
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#ifndef C_VTUICOMMANDMODIFYBASE_H
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#define C_VTUICOMMANDMODIFYBASE_H
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#include <e32base.h>
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#include "mvtuicommandsetting.h"
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/**
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 *  CVtUiCommandModifyBase
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 *
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 *  Command modifier base class. Command modifiers can be used for modifying
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 *  different command sets. E.g. in toolbar and number entry a command modifiers
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 *  are being used for modifying softkeys.
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 *
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 *  @since S60 v3.2
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 */
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NONSHARABLE_CLASS( CVtUiCommandModifyBase ) : public CBase
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    {
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public: // static methods
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    /**
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     * Returns TLinearOrder<> for priority ordering.
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     */
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    static TLinearOrder< CVtUiCommandModifyBase > PriorityOrder();
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private: // static methods
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    /**
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     * Priority ordering function.
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     */
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    static TInt PriorityOrderFunc( const CVtUiCommandModifyBase& aM1,
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        const CVtUiCommandModifyBase& aM2 );
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public: // pure virtual methods
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    /**
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     * Modifies command set.
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     */
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    virtual void ModifyCommandsL( MVtUiCommandSetting& aCommandSettings ) = 0;
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    /**
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     * Returns ETrue if this modifier supports given command set type.
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     */
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    virtual TBool Supports( MVtUiCommandSetting::Type aType ) const = 0;
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protected:
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    /**
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     * Constructor
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     */
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    CVtUiCommandModifyBase( TInt aPriority );
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private:
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    // Modifier priority
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    const TInt iPriority;
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    };
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#endif // C_VTUICOMMANDMODIFYBASE_H