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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:
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*
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*/
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#ifndef HGGRID_H_
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#define HGGRID_H_
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// INCLUDES
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#include <ganes/HgScroller.h>
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class CHgGridLayoutData;
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// CLASS DECLARATION
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class CHgGrid : public CHgScroller
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{
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public: // CONSTRUCTORS & DESTRUCTOR
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/**
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* Creates new HgGrid.
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*
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* @param aRect Rect that the control draws onto.
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* @param aItemCount Total count of items in the grid
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* @param aDefaultIcon Default icon to be used.
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* @param aSession Window server session for DSA. Default is NULL and DSA is disabled.
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*
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* @return HgGrid-object
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*/
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IMPORT_C static CHgGrid* NewL(
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const TRect& aRect,
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TInt aItemCount,
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CGulIcon* aDefaultIcon = NULL,
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RWsSession* aSession = NULL );
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/**
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* Destructor.
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*/
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IMPORT_C virtual ~CHgGrid ( );
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public:
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/**
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* Returns preferred image size that should be used when passing images.
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*/
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IMPORT_C static TSize PreferredImageSize();
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/**
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* Set landscape scrolling support. If enabled lanscape scrolling
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* is on only in landscape orientation. InitScreenL must be called after
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* this to relayout the grid.
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*
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* @param aSupportLandscapeScrolling Landscape scrolling supported or not.
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*/
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IMPORT_C void SetLandscapeScrollingSupport( TBool aSupportLandscapeScrolling );
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/**
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* Set toolbar visibilty. The toolbar visibility ETrue changes the lanscape layout to
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* fill the toolbar space with grid content.
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*
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* @param aToolbarVisible Is toolbar visible or not.
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*/
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IMPORT_C void SetToolbarVisibility( TBool aToolbarVisible );
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protected: // CHgScroller
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TInt GetSelected( TPoint aPosition ) const;
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void HandleSizeChanged();
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void InitItemsL();
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TSize TotalSize() const;
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void DoDraw(const TRect& aRect ) const;
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TBool DoHandleKeyEvent( const TKeyEvent& aEvent );
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void FitSelectionToView();
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void FitTopItemToView( TInt aIndex );
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TInt CurrentIndex();
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TBool IsDisplayed( TInt aIndex );
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void HandleScrollbarVisibilityChange(TBool aVisible);
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private: // Constructors
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CHgGrid( TInt aItemCount,
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CGulIcon* aDefaultIcon );
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void ConstructL (const TRect& aRect, RWsSession* aSession );
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private:
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void DrawHighlight( const TRect& aOuterRect ) const;
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void HandleDownArrow();
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void HandleUpArrow();
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void HandleRightArrow();
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void HandleLeftArrow();
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void SelectDefaultItem();
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TRect GridRect() const;
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void DrawCols( TInt aRow, const TRect& aRect, TInt aYPos ) const;
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void DrawRows( TInt aCol, const TRect& aRect, TInt aXPos ) const;
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void DrawItem( TInt aIndex, const TRect& aRect ) const;
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void CalculateSizes();
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void ChangeSelectedIndex( TInt aMove );
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private: // DATA
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CHgGridLayoutData* iLayoutData;
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TInt iRows; // Total number of rows to display
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TInt iCols; // Total number of cols to display
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TInt iRowWidth;
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TBool iLandScapeScrollingSupported;
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TBool iToolbarVisible;
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};
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#endif // HGGRID_H_
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// End of File
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