/*

* Copyright (c) 2008-2009 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:    Info Bubble Implementation

 *

*/

#ifndef C__GLXINFOBUBBLE_H__

#define C__GLXINFOBUBBLE_H__

//Includes

#include <alf/alfcontrol.h>  //base class for Alf control

#include <alf/alfimage.h>  //for TAlfImage

#include <mglxskinchangeobserver.h> //for interface MGlxSkinChangeObserver

#include <glxmedia.h>

#include <mglxtextureobserver.h>

//Forward Declaration

class CGlxUiUtility;

class CAlfAnchorLayout;

class CAlfBorderBrush;

class CAlfDeckLayout;

class CAlfTexture;

class CAlfImageVisual;

class CAlfTextVisual;

/**

 * CGlxInfoBubble is a common calss based on Alf Control.

 *It draws a bitmap and two lines on text.

 *It has a position logic of its own.

 */

class CGlxInfoBubble : public CAlfControl,public MGlxSkinChangeObserver,

    public MGlxTextureObserver

	{

public:

	/* Constructors. */

	/** 	

	 *  @Default c++ contructor

	 *  @since S60 3.2

	 *  Perform the two phase construction

	 *  @param aEnv - Env Variable of Alf

	 */

	IMPORT_C CGlxInfoBubble();

	/** 	

	 *  @function ConstructL

	 *  @since S60 3.2

	 *  Perform the two phase construction

	 *  @param aOwnerControl - Owner control which will be the parent of Infobubble

	 *  @param aEnv - Env Variable of Alf

	 */

	IMPORT_C void BaseConstructL(CAlfControl &aOwnerControl, CAlfEnv &aEnv);

	/**

	 * Destructor.

	 */

	IMPORT_C virtual ~CGlxInfoBubble();

protected:

	/** 	

	 *  @function DisplayBubbleL

	 *  @since S60 3.2

	 *  @param aPos - Position of Visual for which InfoBubble will be shown

	 *  @param aTexture - Thumbnail texture associated with an item

	 *  @param aTitle - title of a tag

	 *  @param aSubTitle - subtitle of a tag

	 */	

	IMPORT_C void DisplayBubbleL(TPoint aPos, CAlfTexture& aTexture,

    	const TDesC& aTitle, const TDesC& aSubTitle);	

	/** 	

	 *  @function UpdateTextureL

	 *  @since S60 3.2

	 *  @param aTexture - AlfTexture associated with an item thumbnail

	 */

	IMPORT_C void UpdateTextureL(CAlfTexture& aTexture);

	/** 	

	 *  @function DisapperBubble

	 *  Animates when bubble becomes out of context

	 *  @since S60 3.2

	 */

	IMPORT_C void DisappearBubble();

	/** 	

	 *  @function CreateThumbnailTextureL

	 *  creates the thumbnailtexture

	 *  @param aMedia,media

	 *  @param aIdSpaceId,Id-space identifier

	 *  @param aSize,thumbnail size

	 */

	IMPORT_C CAlfTexture& CreateThumbnailTextureL(const TGlxMedia& aMedia,

        const TGlxIdSpaceId& aIdSpaceId,const TSize& aSize);

    /** 	

	 *  @function ResetImage()

	 *  Resets the image 	 

	 */       

    IMPORT_C void ResetImage();

private: // From MGlxTextureObserver

    void TextureContentChangedL( TBool aHasContent, CAlfTexture* aNewTexture );

private:

	/**   

	 *  @function DrawBubbleFirstQuad

	 *  @since S60 3.2

	 *  @param aReferencepos - reference postion for tail

	 *  @param aQuadrantId - determines the bubble type

	 */

	void DrawBubbleFirstQuadL(TPoint aReferencepos);

	/**   

	 *  @function DrawBubbleSecondQuad

	 *  @since S60 3.2

	 *  @param aReferencepos - reference postion for tail

	 *  @param aQuadrantId - determines the bubble type

	 */

	void DrawBubbleSecondQuadL(TPoint aReferencepos);

	/**   

	 *  @function DrawBubbleThirdQuad

	 *  @since S60 3.2

	 *  @param aReferencepos - reference postion for tail

	 *  @param aQuadrantId - determines the bubble type

	 */

	void DrawBubbleThirdQuadL(TPoint aReferencepos);

	/**   

	 *  @function DrawBubbleFourthQuad

	 *  @since S60 3.2

	 *  @param aReferencepos - reference postion for tail

	 *  @param aQuadrantId - determines the bubble type

	 */

	void DrawBubbleFourthQuadL(TPoint aReferencepos);

	/**   

	 *  @function DrawBubbleLeftComponent

	 *  @since S60 3.2

	 */

	void DrawBubbleLeftComponentL();

	/**   

	 *  @function DrawBubbleRightComponent

	 *  @since S60 3.2

	 */

	void DrawBubbleRightComponentL();

	/**   

	 *  @function DrawBubbleExtemsibleComponent

	 *  @since S60 3.2

	 *  @param aQuadrantId - determines the bubble type

	 */

	void DrawBubbleExtensibleComponentL(TInt aSlots);

	/**   

	 *  @function DrawBubbleTailComponent()

	 *  @since S60 3.2

	 */

	void DrawBubbleTailComponentL();

	/**   

	 *  @function ResetBubbleComponent()

	 *  @since S60 3.2

	 */

	void ResetBubbleComponent();

	/**   

	 *  @function LoadTailAssembly()

	 *  @since S60 3.2

	 */

	void LoadTailAssemblyL(TInt aTailEnumId, TInt aTailStripEnumId);

	void CreateItemContainerLayoutL();

	void SetVariableVisualCountL();

	//from MGlxSkinChangeObserver

	void HandleSkinChanged();

    /**   

	 *  @function SetThumbnailBorderColor()

	 *  @since S60 3.2

	 *  Sets the color for thumbnail border

	 */

	void SetThumbnailBorderColor();

protected:

	/**UI Utility  */

	CGlxUiUtility* iUiUtility;

private:

	//Enum for deciding the location of bubble

	enum TGlxBubbleQuadrantFlags

		{

		EQuadrantFirst = 0,

		EQuadrantSecond ,

		EQuadrantThird,

		EQuadrantFourth

		};

	/**Anchor layout for Bubble container */

	CAlfAnchorLayout *iInfoBubbleContainer;

	/**Anchor layout for Bubble */

	CAlfAnchorLayout *iInfoBubble;

	/**deck layout which is base layout for Bubble */

	CAlfDeckLayout *iInfoDeck;

	/**Visual for centre Image of Bubble */

	CAlfImageVisual *iDeckCentreimage;

	/**Visual for first line of text in Bubble */

	CAlfTextVisual *iBubbleTextTitle;

	/**Visual for second line of text in Bubble */

	CAlfTextVisual *iBubbleTextSubTitle;

	/**Image variable of bubble components */

	TAlfImage iImageThumb, iImageBubbleLeft, iImageBubbleRight;

	TAlfImage iImageBubbleStrip, iImageBubbleExpand, iImageBubbleTail;

	/**Border brush */

	CAlfBorderBrush *iThumbnailBorderBrush;

	/**Visual  array for expandable middle bubble component */

	RPointerArray <CAlfImageVisual> iBubbleExpandStrip; //

	/**Visual for left arc of Bubble */

	CAlfImageVisual *iBubbleLeft;

	/**Visual for rightarc of Bubble */

	CAlfImageVisual *iBubbleRight;

	/**Visual for strip that connects to tail of Bubble */

	CAlfImageVisual *iBubbleTailStrip;

	/**Visual for tail of Bubble */

	CAlfImageVisual *iBubbleTail;

	/**number of times centre bubble image is needed */

	TReal iRoudedSlotValue;

	/**flag to decide iInfoBubbleContainer position */

	TInt iTailPositionUp;

	/**flag to indicate whether tail will be drawn on normal position or not */

	TInt iTailNormalPosition;

	/**point from which the drawing of bubble will start */

	TPoint iBubbleRectDrawPoint;

	/**Storing screen width */

	TInt iScreenWidth;

	/** storing screen height*/

	TInt iScreenHeight;

	/**offset for bubble drawing */

	TInt iPositionOffset;

	/** Stores Size of bubble*/

	TSize iBubbleSize;

	/**stores counter of bubble component drawn */

	TInt iBubbleComponentCount;

	/**Increment variable for X axis */

	TPoint iPos;

	TInt iBubbleXaxisInc;

	//mif file

	TFileName iMifFile;

	CAlfTexture *iTexture;

	/**temporary object to store Bubble Text*/

	CAlfTextVisual *iTempTitleText;

	};

#endif // C__GLXINFOBUBBLE_H__