camera_plat/active_palette_2_api/tsrc/inc/ActivePaletteContainer.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 07 Jan 2010 16:18:56 +0200
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/*
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* Copyright (c) 2009 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: CCActivePaletteContainer declaration.
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*
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*/
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#ifndef ACTIVEPALETTECONTAINER_H
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#define ACTIVEPALETTECONTAINER_H
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// INCLUDES
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#include <e32std.h>
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#include <e32base.h>
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#include <coecntrl.h>
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#include <coeview.h>
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#include <activepalette2observer.h>
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// FORWARD DECLARATIONS
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class CActivePalette2ApiTest;
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class MActivePalette2UI;
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// CLASS DECLARATION
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/**
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 *  CCActivePaletteContainer
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 * 
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 */
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class CActivePaletteContainer : public CCoeControl, 
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                                public MCoeView,
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                                public MActivePalette2Observer
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    {
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public:
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    // Constructors and destructor
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    void ConstructL(CActivePalette2ApiTest* aTest);
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    /**
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     * Destructor.
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     */
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    ~CActivePaletteContainer();
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    // -------------------------------------------------------------------------
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    // From CCoeControl
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public:
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    virtual TInt CountComponentControls() const;
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    virtual CCoeControl* ComponentControl(TInt aIndex) const;
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    virtual void Draw(const TRect &aRect) const;
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    virtual TKeyResponse OfferKeyEventL(const TKeyEvent& aKeyEvent, TEventCode aType);    
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protected: 
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    virtual void SizeChanged();
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    // -------------------------------------------------------------------------
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    // From MCoeView
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public:    
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    virtual TVwsViewId ViewId() const;
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private: 
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    virtual void ViewActivatedL(const TVwsViewId &aPrevViewId, TUid aCustomMessageId, const TDesC8 &aCustomMessage);
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    virtual void ViewDeactivated();
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    // -------------------------------------------------------------------------
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    // From MActivePalette2Observer
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public:
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    /**
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     * Called when a new item is focused
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     * @param aPrevItem Item ID of previously focused item
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     * @param aFocusedItem Item ID of newly focused item
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     */
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    virtual void NotifyItemFocused(TInt aPrevItem, TInt aFocusedItem);
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    /**
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     * Called when the user has selected an item from the AP, before the plugin is informed
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     * @param aEvent The event data
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     */
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    virtual void NotifyItemSelected(const TActivePalette2EventData& aEvent);
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    /**
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     * Called when the user has selected an item from the AP, after the relevant plugin
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     * has completed processing the event
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     * @param aEvent The event data
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     * @param aDataDes Data descriptor
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     * @param aDataInt Data integer
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     */
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    virtual void NotifyItemComplete(const TActivePalette2EventData& aEvent,
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                                    const TDesC8& aDataDes,
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                                    TInt aDataInt);
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    /**
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     * Called when a plugin generates a message for the client app.
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     * @param aEvent The event data
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     * @param aMessageID The ID of the message
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     * @param aDataDes Data descriptor
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     * @param aDataInt Data integer
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     */
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    virtual void NotifyMessage(const TActivePalette2EventData& aEvent,
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                               TInt aMessageID,
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                               const TDesC8& aDataDes,
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                               TInt aDataInt);
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    /**
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     * Request for the client app to redraw the given area underneath the AP. Used to support semi-transparency.
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     * It is important that this completes quickly. This will only be called if a CCoeControl-derived AP is
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     * in use.
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     * @param aArea The area to redraw.
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     */                                
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    virtual void Redraw(const TRect& aArea);
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    /**
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     * Informs the observer that the AP has been updated in some way. Includes animations. 
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     * Only called if SetGc() has previously been called on the AP with a non-NULL parameter, and if the AP
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     * in use is a CCoeControl.
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     */                                
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    virtual void ActivePaletteUpdated(void);
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    // -------------------------------------------------------------------------
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    // New methods        
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public:
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    /**
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     * Get the Active Palette instance.
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     */
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    MActivePalette2UI* ActivePalette() const;
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private:
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    /**
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     * Create Active Palette.
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     */
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    void CreateActivePaletteL();
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    /**
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     * Helper method to trace the Active Palette Event details.
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     * @param aEvent The event.
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     */
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    void CheckActivePaletteEvent( const TActivePalette2EventData& aEvent );
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    // -------------------------------------------------------------------------
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    // Data 
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private:    
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    CActivePalette2ApiTest* iTest;
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    MActivePalette2UI*      iActivePalette;
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    TUid                    iAppUid;
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    // -------------------------------------------------------------------------
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    };
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#endif // ACTIVEPALETTECONTAINER_H