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// Copyright (c) 1997-2009 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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#ifndef BANDDEV_H
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#define BANDDEV_H
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#include <e32std.h>
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#include <gdi.h>
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class CFbsBitmapDevice;
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class CFbsBitGc;
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/**
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@publishedAll
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*/
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enum TBandingDirection
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{
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EBandingTopToBottom,
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EBandingBottomToTop,
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EBandingLeftToRight,
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EBandingRightToLeft
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};
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/**
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@publishedAll
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@released
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*/
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class CBandedDevice : public CGraphicsDevice
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{
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public:
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IMPORT_C ~CBandedDevice();
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IMPORT_C static CBandedDevice* NewL(TRect aRectInPixels, TSize aKPixelSizeInTwips, TDisplayMode aDisplayMode, TBandingDirection aBandingDirection = EBandingTopToBottom, TInt aScanLinesPerBand = 0);
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IMPORT_C TInt HorizontalTwipsToPixels(TInt aTwips) const;
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IMPORT_C TInt VerticalTwipsToPixels(TInt aTwips) const;
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IMPORT_C TInt HorizontalPixelsToTwips(TInt aPixels) const;
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IMPORT_C TInt VerticalPixelsToTwips(TInt aPixels) const;
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IMPORT_C virtual TInt GetNearestFontInTwips(CFont*& aFont, const TFontSpec& aFontSpec);
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IMPORT_C virtual TInt GetNearestFontToDesignHeightInTwips(CFont*& aFont, const TFontSpec& aFontSpec);
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IMPORT_C virtual TInt GetNearestFontToMaxHeightInTwips(CFont*& aFont, const TFontSpec& aFontSpec, TInt aMaxHeight);
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IMPORT_C void ReleaseFont(CFont* aFont);
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IMPORT_C TDisplayMode DisplayMode() const;
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IMPORT_C TSize SizeInPixels() const;
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IMPORT_C TSize SizeInTwips() const;
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IMPORT_C TInt CreateContext(CGraphicsContext*& aGC);
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IMPORT_C TInt NumTypefaces() const;
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IMPORT_C void TypefaceSupport(TTypefaceSupport& aTypefaceSupport, TInt aTypefaceIndex) const;
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IMPORT_C TInt FontHeightInTwips(TInt aTypefaceIndex, TInt aHeightIndex) const;
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IMPORT_C void PaletteAttributes(TBool& aModifiable, TInt& aNumEntries) const;
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IMPORT_C void SetPalette(CPalette* aPalette);
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IMPORT_C TInt GetPalette(CPalette*& aPalette) const;
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IMPORT_C TInt NumBands() const;
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IMPORT_C TInt NextBand();
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IMPORT_C TRect BandRect() const;
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IMPORT_C TPoint FullOriginToBandOrigin(const TPoint& aPoint) const;
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IMPORT_C void Reset();
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inline TBandingDirection BandingDirection() const {return iBandingDirection;}
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inline CFbsBitmap* BandBitmap() const {return iBandBitmap;}
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private:
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CBandedDevice(TRect aRectInPixels, TBandingDirection aBandingDirection, TInt aScanLinesPerBand);
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void ConstructL(TDisplayMode aDisplayMode, TSize aKPixelSizeInTwips);
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private:
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TRect iFullRectInPixels;
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TInt iScanLinesPerBand;
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TInt iBandIndex;
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CFbsBitmap* iBandBitmap;
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CFbsBitmapDevice* iBandBitmapDevice;
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CFbsBitGc* iClearGc;
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TBandingDirection iBandingDirection;
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};
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#endif
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