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1 // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 #ifndef BANDDEV_H |
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17 #define BANDDEV_H |
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18 |
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19 #include <e32std.h> |
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20 #include <gdi.h> |
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21 |
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22 class CFbsBitmapDevice; |
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23 class CFbsBitGc; |
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24 |
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25 /** |
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26 @publishedAll |
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27 */ |
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28 enum TBandingDirection |
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29 { |
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30 EBandingTopToBottom, |
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31 EBandingBottomToTop, |
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32 EBandingLeftToRight, |
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33 EBandingRightToLeft |
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34 }; |
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35 |
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36 /** |
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37 @publishedAll |
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38 @released |
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39 */ |
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40 class CBandedDevice : public CGraphicsDevice |
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41 { |
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42 public: |
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43 IMPORT_C ~CBandedDevice(); |
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44 IMPORT_C static CBandedDevice* NewL(TRect aRectInPixels, TSize aKPixelSizeInTwips, TDisplayMode aDisplayMode, TBandingDirection aBandingDirection = EBandingTopToBottom, TInt aScanLinesPerBand = 0); |
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45 |
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46 IMPORT_C TInt HorizontalTwipsToPixels(TInt aTwips) const; |
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47 IMPORT_C TInt VerticalTwipsToPixels(TInt aTwips) const; |
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48 IMPORT_C TInt HorizontalPixelsToTwips(TInt aPixels) const; |
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49 IMPORT_C TInt VerticalPixelsToTwips(TInt aPixels) const; |
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50 IMPORT_C virtual TInt GetNearestFontInTwips(CFont*& aFont, const TFontSpec& aFontSpec); |
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51 IMPORT_C virtual TInt GetNearestFontToDesignHeightInTwips(CFont*& aFont, const TFontSpec& aFontSpec); |
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52 IMPORT_C virtual TInt GetNearestFontToMaxHeightInTwips(CFont*& aFont, const TFontSpec& aFontSpec, TInt aMaxHeight); |
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53 IMPORT_C void ReleaseFont(CFont* aFont); |
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54 |
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55 IMPORT_C TDisplayMode DisplayMode() const; |
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56 IMPORT_C TSize SizeInPixels() const; |
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57 IMPORT_C TSize SizeInTwips() const; |
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58 IMPORT_C TInt CreateContext(CGraphicsContext*& aGC); |
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59 IMPORT_C TInt NumTypefaces() const; |
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60 IMPORT_C void TypefaceSupport(TTypefaceSupport& aTypefaceSupport, TInt aTypefaceIndex) const; |
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61 IMPORT_C TInt FontHeightInTwips(TInt aTypefaceIndex, TInt aHeightIndex) const; |
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62 IMPORT_C void PaletteAttributes(TBool& aModifiable, TInt& aNumEntries) const; |
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63 IMPORT_C void SetPalette(CPalette* aPalette); |
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64 IMPORT_C TInt GetPalette(CPalette*& aPalette) const; |
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65 |
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66 IMPORT_C TInt NumBands() const; |
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67 IMPORT_C TInt NextBand(); |
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68 IMPORT_C TRect BandRect() const; |
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69 IMPORT_C TPoint FullOriginToBandOrigin(const TPoint& aPoint) const; |
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70 IMPORT_C void Reset(); |
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71 |
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72 inline TBandingDirection BandingDirection() const {return iBandingDirection;} |
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73 inline CFbsBitmap* BandBitmap() const {return iBandBitmap;} |
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74 |
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75 private: |
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76 CBandedDevice(TRect aRectInPixels, TBandingDirection aBandingDirection, TInt aScanLinesPerBand); |
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77 void ConstructL(TDisplayMode aDisplayMode, TSize aKPixelSizeInTwips); |
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78 |
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79 private: |
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80 TRect iFullRectInPixels; |
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81 TInt iScanLinesPerBand; |
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82 TInt iBandIndex; |
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83 CFbsBitmap* iBandBitmap; |
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84 CFbsBitmapDevice* iBandBitmapDevice; |
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85 CFbsBitGc* iClearGc; |
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86 TBandingDirection iBandingDirection; |
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87 }; |
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88 |
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89 #endif |