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os/graphics/printingservices/printerdriversupport/inc/BANDDEV.H
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib. 
     1 // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef BANDDEV_H

    17 #define BANDDEV_H

    18 

    19 #include <e32std.h>

    20 #include <gdi.h>

    21 

    22 class CFbsBitmapDevice;

    23 class CFbsBitGc;

    24 

    25 /**

    26  @publishedAll

    27 */

    28 enum TBandingDirection

    29 	{

    30 	EBandingTopToBottom,

    31 	EBandingBottomToTop,

    32 	EBandingLeftToRight,

    33 	EBandingRightToLeft

    34 	};

    35 

    36 /**

    37  @publishedAll

    38  @released 

    39  */

    40 class CBandedDevice : public CGraphicsDevice

    41 	{

    42 public:

    43 	IMPORT_C ~CBandedDevice();

    44 	IMPORT_C static CBandedDevice* NewL(TRect aRectInPixels, TSize aKPixelSizeInTwips, TDisplayMode aDisplayMode, TBandingDirection aBandingDirection = EBandingTopToBottom, TInt aScanLinesPerBand = 0);

    45 

    46 	IMPORT_C TInt HorizontalTwipsToPixels(TInt aTwips) const;

    47 	IMPORT_C TInt VerticalTwipsToPixels(TInt aTwips) const;

    48 	IMPORT_C TInt HorizontalPixelsToTwips(TInt aPixels) const;

    49 	IMPORT_C TInt VerticalPixelsToTwips(TInt aPixels) const;

    50 	IMPORT_C virtual TInt GetNearestFontInTwips(CFont*& aFont, const TFontSpec& aFontSpec);

    51 	IMPORT_C virtual TInt GetNearestFontToDesignHeightInTwips(CFont*& aFont, const TFontSpec& aFontSpec);

    52 	IMPORT_C virtual TInt GetNearestFontToMaxHeightInTwips(CFont*& aFont, const TFontSpec& aFontSpec, TInt aMaxHeight);

    53 	IMPORT_C void ReleaseFont(CFont* aFont);

    54 

    55 	IMPORT_C TDisplayMode DisplayMode() const;

    56 	IMPORT_C TSize SizeInPixels() const;

    57 	IMPORT_C TSize SizeInTwips() const;

    58 	IMPORT_C TInt CreateContext(CGraphicsContext*& aGC);

    59 	IMPORT_C TInt NumTypefaces() const;

    60 	IMPORT_C void TypefaceSupport(TTypefaceSupport& aTypefaceSupport, TInt aTypefaceIndex) const;

    61 	IMPORT_C TInt FontHeightInTwips(TInt aTypefaceIndex, TInt aHeightIndex) const;

    62 	IMPORT_C void PaletteAttributes(TBool& aModifiable, TInt& aNumEntries) const;

    63 	IMPORT_C void SetPalette(CPalette* aPalette);

    64 	IMPORT_C TInt GetPalette(CPalette*& aPalette) const;

    65 

    66 	IMPORT_C TInt NumBands() const;

    67 	IMPORT_C TInt NextBand();

    68 	IMPORT_C TRect BandRect() const;

    69 	IMPORT_C TPoint FullOriginToBandOrigin(const TPoint& aPoint) const;

    70 	IMPORT_C void Reset();

    71 

    72 	inline TBandingDirection BandingDirection() const {return iBandingDirection;}

    73 	inline CFbsBitmap* BandBitmap() const {return iBandBitmap;}

    74 

    75 private:

    76 	CBandedDevice(TRect aRectInPixels, TBandingDirection aBandingDirection, TInt aScanLinesPerBand);

    77 	void ConstructL(TDisplayMode aDisplayMode, TSize aKPixelSizeInTwips);

    78 

    79 private:

    80 	TRect iFullRectInPixels;

    81 	TInt iScanLinesPerBand;

    82 	TInt iBandIndex;

    83 	CFbsBitmap* iBandBitmap;

    84 	CFbsBitmapDevice* iBandBitmapDevice;

    85 	CFbsBitGc* iClearGc;

    86 	TBandingDirection iBandingDirection;

    87 	};

    88 

    89 #endif
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