bluetoothengine/bthid/mouse/hidmousedriver/inc/finder.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 03 May 2010 12:40:50 +0300
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/*
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* Copyright (c) 2008 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:  Declares main application class.
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 *
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*/
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#ifndef __FINDER_H
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#define __FINDER_H
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#include <e32std.h>
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#include "hidreportroot.h"
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// ----------------------------------------------------------------------
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/**
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 *  Field finder for the ordinary mouse fields.
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 */
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class TMouseFinder : public MHidFieldFinder
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    {
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public:
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    // From MHidFieldFinder
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    virtual TBool BeginCollection(const CCollection *aCollection);
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    virtual TBool EndCollection(const CCollection *aCollection);
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    virtual void Field(const CField* aField);
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public:
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    /** Constructor */
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    TMouseFinder();
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    /**
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     *  Get the field containing the standard keys, if found.
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     *  @return CField* Pointer to the field, or NULL.
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     */
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    inline const CField* ButtonsField() const;
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    /**
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     *  Get the field containing the xy field, if found.
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     *  @return CField* Pointer to the field, or NULL.
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     */
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    inline const CField* XYField() const;
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    /**
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     *  Get the field containing the wheel info, if found.
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     *  @return CField* Pointer to the field, or NULL.
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     */
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    inline const CField* WheelField() const;
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    /**
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     *  Check whether the required fields have been found.
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     *  @return ETrue if they have.
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     */
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    inline TBool Found() const;
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    /**
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     *  Check whether a given field contains the XY Coordinates
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     *  @param aField Pointer to the field to test.
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     *  @return ETrue if it does.
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     */
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    TBool IsXY(const CField* aField) const;
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    /**
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     *  Check whether a given field contains the Buttons.
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     *  @param aField Pointer to the field to test.
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     *  @return ETrue if it does.
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     */
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    TBool IsButtons(const CField* aField) const;
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    /**
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     *  Check whether a given field contains a wheel.
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     *  @param aField Pointer to the field to test.
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     *  @return ETrue if it does.
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     */
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    TBool IsWheel(const CField* aField) const;
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private:
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    /** Pointer to the field containing the XY pointer info. */
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    const CField* iXY;
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    /** Pointer to the field containing the buttons. */
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    const CField* iButtons;
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    /** Pointer to the field containing the Wheel info. */
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    const CField* iWheel;
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    /** Pointer to the top level application collection being searched. */
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    const CCollection* iAppCollection;
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    };
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// ----------------------------------------------------------------------
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inline TBool TMouseFinder::Found() const
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    {
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    // Standard and modifier key fields are always necessary, but the
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    // Wheel field is optional:
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    //
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    return iButtons && iXY;
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    }
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inline const CField* TMouseFinder::ButtonsField() const
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    {
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    return iButtons;
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    }
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inline const CField* TMouseFinder::XYField() const
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    {
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    return iXY;
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    }
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inline const CField* TMouseFinder::WheelField() const
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    {
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    return iWheel;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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    }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   120
#endif