/*+
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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: +
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*+
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*/+
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+
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+
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#ifndef C_ALFEXSTICKERSCONTROL_H+
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#define C_ALFEXSTICKERSCONTROL_H+
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+
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+
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/* Includes */+
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+
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#include <alf/alfcontrol.h>+
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+
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//TEMP+
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#include <alf/alfdecklayout.h>+
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+
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+
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/* Forward declarations. */+
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+
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class CAlfViewportLayout;+
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class CAlfExStickerLayout;+
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class CAlfImageLoaderUtil;+
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+
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+
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/* Constants */+
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+
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//Number of example stickers+
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const TInt KStickerCount = 2;+
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+
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/** +
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 * @class CAlfExStickersControl+
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 * @discussion Control class for the AlfExSticker application. Handles creation of application elements+
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 * like viewport and sticker text visuals. Also handles user interaction with application elements.+
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 */+
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class CAlfExStickersControl : public CAlfControl+
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    {+
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public:+
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+
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	/* Constructors and destructor. */+
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	+
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	/**+
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	 * @function NewL+
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	 * @discussion Constructs a new CAlfExStickersControl class instance. A static factory method.+
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	 * @param aEnv	UI Accelerator Toolkit environment object.+
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	 * @param aFs	A handle to a file server session.+
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	 * @result Control for the AlfExStickers application+
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	 */+
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	static CAlfExStickersControl* NewL(CAlfEnv& aEnv, RFs* aFs);+
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	+
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	/**+
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	 * @function NewLC+
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	 * @discussion Constructs a new CAlfExStickersControl class instance. A static factory method.+
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	 * @param aEnv	UI Accelerator Toolkit environment object.+
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	 * @param aFs	A handle to a file server session.+
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	 * @result Control for the AlfExStickers application+
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	 */+
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    static CAlfExStickersControl* NewLC(CAlfEnv& aEnv, RFs* aFs);+
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    +
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    /**+
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     * @function ~CAlfExStickersControl+
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     * @discussion 	Destructor+
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     */+
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    virtual ~CAlfExStickersControl();+
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    +
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+
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    /* Methods. */+
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    +
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    /**+
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     * @function OfferEventL+
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     * @discussion Handles events from the framework+
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     * @param aEvent Catched event+
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     * @result Success or failure+
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     */    +
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    virtual TBool OfferEventL(const TAlfEvent& aEvent);+
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    +
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    /**+
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     * @function GetControl+
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     * @discussion Provides Control to stickers+
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     * @result CAlfControl to child visuals+
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     */    +
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    CAlfControl* GetControl();+
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    +
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    //Control for the visuals+
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    CAlfControl* iControl;+
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    +
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    +
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private:+
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	+
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	/* Constructors*/+
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+
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	/**+
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	 * Constructs an instance of CAlfExStickersControl.+
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	 * @note Protected because this constructor only needs to be called by +
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	 * derived classes. Use the provided static factory methods instead.+
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	 * @see NewL()+
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	 * @see NewLC()+
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	 */+
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    CAlfExStickersControl();+
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    +
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    /**+
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     * @function ConstructL+
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     * @discussion Second phase constructor+
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	 * @param aEnv	UI Accelerator Toolkit environment object.+
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	 * @param aFs	A handle to a file server session.+
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     */+
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    void ConstructL(CAlfEnv& aEnv, RFs* aFs);+
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    +
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    +
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    /* Methods. */+
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    +
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    /**+
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     * @function CreateViewportL+
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     * @discussion Creates Viewport layout to the application to act as the root layout.+
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     * Also function is used to set the size for the viewport and to enable scrolling, ie.+
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     * dragging interaction with the background+
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     */+
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    void CreateViewportL();+
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    +
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    /**+
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     * @function SetTextureManagerL+
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     * @discussion The function is used to find out path to applications graphical+
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     * resources and giving the path to Texture Manager. +
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     */+
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    void SetTextureManagerL();+
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    +
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    /**+
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     * @function LoadBackgroundImageL+
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     * @discussion Function uses Texture Manager to load board (application background)+
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     * texture from a png-file. Then creates new image visual to cover application background and+
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     * adds the loaded board texture in the visual.+
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     */+
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    void LoadBackgroundImageL();+
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    +
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    /**+
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     * @function CreateSVGTextureL+
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     * @discussion Function used to create SVG texture from SVG file+
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     * @param aFileName SVG file filename.+
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     * @param aSize Texture size+
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     * @param aImageLoaderUtil Image loader utility.+
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     * @result Reference to created texture. This texture is owned by texture manager.+
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     */+
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    CAlfTexture& CreateSVGTextureL(const TFileName& aFileName, TSize& aSize, CAlfImageLoaderUtil* aImageLoaderUtil);+
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    +
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    /**+
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     * @function CreateStickersL+
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     * @discussion Function used to create several stickers and applying the needed+
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     * changes into the visuals.+
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     * +
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     * Easiest way to create text visual would be to use:+
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     * CAlfTextVisual* visual = CAlfTextVisual::AddNewL(*this, iPlainLayout);+
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     * We have however created new class for the text visual (alfexsticker).+
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     */+
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    void CreateStickersL();+
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+
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    /**+
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     * @function LoadStickerImageL+
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     * @discussion Function used to load sticker background image from SVG file.+
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     * @param aIndex An index number of sticker where background is loaded.+
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     */+
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    void LoadStickerImageL(TInt aIndex);+
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    +
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    /* Member variables */+
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    +
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    //UI Accelerator Toolkit environment object+
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    CAlfEnv* iEnv;+
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    +
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    //Handle to file server session+
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    RFs* iFs;+
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+
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    //Texture path+
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    TFileName iPrivateFolderPath;+
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    +
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    //Layouts && Co+
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    CAlfViewportLayout* iViewPort;+
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    CAlfLayout* iPlainLayout;+
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    +
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    //Application view and viewport sizes+
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    TSize iVirtualSize;+
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    TSize iLayoutsize;+
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    +
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    //Sticker array+
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    CAlfExStickerLayout* iStickerArray[KStickerCount];+
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    +
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    //Default timed values+
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    TAlfTimedValue x;+
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    TAlfTimedValue y;+
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    +
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    //Member data needed to handle interaction, like drag and drop+
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    CAlfVisual* iOnVisual;+
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    CAlfExStickerLayout* iSelectedDeck;+
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    TBool iDraggingVisual;+
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    TPoint iStartVisualPos;    // Original position of dragged visual.+
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    TPoint iStartDisplayPoint; // Point of display for Pointer Down.+
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    TAlfRealPoint iDraggedPosition;+
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    TAlfRealPoint iViewPos;+
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    TBool iHasBeenDragged;+
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    +
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    //Image loader array.+
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    RArray<CAlfImageLoaderUtil*> iImageLoaderUtilArray;+
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    };+
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+
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#endif // C_ALFEXSTICKERSCONTROL_H+
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