/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you under the Apache * License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.apache.org/licenses/LICENSE-2.0 . */ #ifndef _SV_BITMAP_HXX #define _SV_BITMAP_HXX #include #include #include #include #include #include // ----------- // - Defines - // ----------- #define BMP_MIRROR_NONE 0x00000000UL #define BMP_MIRROR_HORZ 0x00000001UL #define BMP_MIRROR_VERT 0x00000002UL // ----------------------------------------------------------------------------- #define BMP_SCALE_NONE 0x00000000UL #define BMP_SCALE_FAST 0x00000001UL #define BMP_SCALE_INTERPOLATE 0x00000002UL #define BMP_SCALE_LANCZOS 0x00000003UL #define BMP_SCALE_BICUBIC 0x00000004UL #define BMP_SCALE_BILINEAR 0x00000005UL #define BMP_SCALE_BOX 0x00000006UL // Aliases, try to use these two (or BMP_SCALE_FAST/BMP_SCALE_NONE), // use a specific algorithm only if you really need to. #define BMP_SCALE_BEST BMP_SCALE_LANCZOS #define BMP_SCALE_DEFAULT BMP_SCALE_BOX // ----------------------------------------------------------------------------- #define BMP_DITHER_NONE 0x00000000UL #define BMP_DITHER_MATRIX 0x00000001UL #define BMP_DITHER_FLOYD 0x00000002UL #define BMP_DITHER_FLOYD_16 0x00000004UL // ----------------------------------------------------------------------------- #define BMP_VECTORIZE_NONE BMP_VECTORIZE_OUTER #define BMP_VECTORIZE_INNER 0x00000001UL #define BMP_VECTORIZE_OUTER 0x00000002UL #define BMP_VECTORIZE_BOUND_ONLY 0x00000004UL #define BMP_VECTORIZE_REDUCE_EDGES 0x00000008UL // ----------------------------------------------------------------------------- #define BMP_COL_TRANS Color( 252, 3, 251 ) // --------- // - Enums - // --------- enum BmpConversion { BMP_CONVERSION_NONE = 0, BMP_CONVERSION_1BIT_THRESHOLD = 1, BMP_CONVERSION_1BIT_MATRIX = 2, BMP_CONVERSION_4BIT_GREYS = 3, BMP_CONVERSION_4BIT_COLORS = 4, BMP_CONVERSION_8BIT_GREYS = 5, BMP_CONVERSION_8BIT_COLORS = 6, BMP_CONVERSION_24BIT = 7, BMP_CONVERSION_4BIT_TRANS = 8, BMP_CONVERSION_8BIT_TRANS = 9, BMP_CONVERSION_GHOSTED = 10 }; // ------------------------------------------------------------------------ enum BmpCombine { BMP_COMBINE_COPY = 0, BMP_COMBINE_INVERT = 1, BMP_COMBINE_AND = 2, BMP_COMBINE_NAND = 3, BMP_COMBINE_OR = 4, BMP_COMBINE_NOR = 5, BMP_COMBINE_XOR = 6, BMP_COMBINE_NXOR = 7 }; // ------------------------------------------------------------------------ enum BmpReduce { BMP_REDUCE_SIMPLE = 0, BMP_REDUCE_POPULAR = 1, BMP_REDUCE_MEDIAN = 2 }; // ------------------------------------------------------------------------ enum BmpEmboss { BMP_EMBOSS_TOPLEFT = 0, BMP_EMBOSS_TOP = 1, BMP_EMBOSS_TOPRIGHT = 2, BMP_EMBOSS_LEFT = 3, BMP_EMBOSS_MIDDLE = 4, BMP_EMBOSS_RIGHT = 5, BMP_EMBOSS_BOTTOMLEFT = 6, BMP_EMBOSS_BOTTOM = 7, BMP_EMBOSS_BOTTOMRIGHT = 8 }; // ------------------------------------------------------------------------ enum BmpFilter { BMP_FILTER_SMOOTH = 0, BMP_FILTER_SHARPEN = 1, BMP_FILTER_REMOVENOISE = 2, BMP_FILTER_SOBEL_GREY = 3, BMP_FILTER_EMBOSS_GREY = 4, BMP_FILTER_SOLARIZE = 5, BMP_FILTER_SEPIA = 6, BMP_FILTER_MOSAIC = 7, BMP_FILTER_POPART = 8, BMP_FILTER_UNKNOWN = 65535 }; // ------------------------------------------------------------------------ // -------------------- // - FilterParameters - // -------------------- class VCL_DLLPUBLIC BmpFilterParam { friend class Bitmap; friend class BitmapEx; friend class Animation; private: BmpFilter meFilter; sal_uLong mnProgressStart; sal_uLong mnProgressEnd; public: struct MosaicTileSize { sal_uLong mnTileWidth; sal_uLong mnTileHeight; }; struct EmbossAngles { sal_uInt16 mnAzimuthAngle100; sal_uInt16 mnElevationAngle100; }; private: union { sal_uInt16 mnSepiaPercent; sal_uInt8 mcSolarGreyThreshold; double mnRadius; MosaicTileSize maMosaicTileSize; EmbossAngles maEmbossAngles; }; public: BmpFilterParam( sal_uLong nProgressStart = 0, sal_uLong nProgressEnd = 0 ) : meFilter( BMP_FILTER_UNKNOWN ), mnProgressStart( nProgressStart ), mnProgressEnd( nProgressEnd ) {} BmpFilterParam( sal_uInt8 cSolarGreyThreshold, sal_uLong nProgressStart = 0, sal_uLong nProgressEnd = 0 ) : meFilter( BMP_FILTER_SOLARIZE ), mnProgressStart( nProgressStart ), mnProgressEnd( nProgressEnd ), mcSolarGreyThreshold( cSolarGreyThreshold ) {} BmpFilterParam( double nRadius, sal_uLong nProgressStart = 0, sal_uLong nProgressEnd = 0 ) : meFilter( BMP_FILTER_SMOOTH ), mnProgressStart( nProgressStart ), mnProgressEnd( nProgressEnd ), mnRadius( nRadius ) {} BmpFilterParam( sal_uInt16 nSepiaPercent, sal_uLong nProgressStart = 0, sal_uLong nProgressEnd = 0 ) : meFilter( BMP_FILTER_SEPIA ), mnProgressStart( nProgressStart ), mnProgressEnd( nProgressEnd ), mnSepiaPercent( nSepiaPercent ) {} BmpFilterParam( const Size& rMosaicTileSize, sal_uLong nProgressStart = 0, sal_uLong nProgressEnd = 0 ) : meFilter( BMP_FILTER_MOSAIC ), mnProgressStart( nProgressStart ), mnProgressEnd( nProgressEnd ) { maMosaicTileSize.mnTileWidth = rMosaicTileSize.Width(); maMosaicTileSize.mnTileHeight= rMosaicTileSize.Height(); } BmpFilterParam( sal_uInt16 nEmbossAzimuthAngle100, sal_uInt16 nEmbossElevationAngle100, sal_uLong nProgressStart = 0, sal_uLong nProgressEnd = 0 ) : meFilter( BMP_FILTER_EMBOSS_GREY ), mnProgressStart( nProgressStart ), mnProgressEnd( nProgressEnd ) { maEmbossAngles.mnAzimuthAngle100 = nEmbossAzimuthAngle100; maEmbossAngles.mnElevationAngle100 = nEmbossElevationAngle100; } }; // -------------------- // Resample Kernels // -------------------- class Kernel { public: Kernel () {} virtual ~Kernel() {} virtual double GetWidth() = 0; virtual double Calculate( double x ) = 0; }; class Lanczos3Kernel : public Kernel { public: virtual double GetWidth() { return 3.0; } virtual double Calculate (double x) { return (-3.0 <= x && x < 3.0) ? SincFilter(x) * SincFilter( x / 3.0 ) : 0.0; } inline double SincFilter(double x) { if (x == 0.0) { return 1.0; } x = x * M_PI; return sin(x) / x; } }; class BicubicKernel : public Kernel { virtual double GetWidth() { return 2.0; } virtual double Calculate (double x) { if (x < 0.0) { x = -x; } if (x <= 1.0) { return (1.5 * x - 2.5) * x * x + 1.0; } else if (x < 2.0) { return ((-0.5 * x + 2.5) * x - 4) * x + 2; } return 0.0; } }; class BilinearKernel : public Kernel { virtual double GetWidth() { return 1.0; } virtual double Calculate (double x) { if (x < 0.0) { x = -x; } if (x < 1.0) { return 1.0-x; } return 0.0; } }; class BoxKernel : public Kernel { virtual double GetWidth() { return 0.5; } virtual double Calculate (double x) { if (-0.5 <= x && x < 0.5) return 1.0; return 0.0; } }; // ---------- // - Bitmap - // ---------- class BitmapReadAccess; class BitmapWriteAccess; class BitmapPalette; class ImpBitmap; class Color; class SvStream; struct DIBInfoHeader; class ResId; class GDIMetaFile; class AlphaMask; class OutputDevice; class SalBitmap; struct BitmapSystemData { #if defined( WNT ) void* pDIB; // device independent byte buffer void* pDDB; // if not NULL then this is actually an HBITMAP #elif defined( QUARTZ ) || defined( IOS ) void* rImageContext; //Image context (CGContextRef) #else void* aPixmap; #endif int mnWidth; int mnHeight; }; class VCL_DLLPUBLIC Bitmap { private: ImpBitmap* mpImpBmp; MapMode maPrefMapMode; Size maPrefSize; public: SAL_DLLPRIVATE void ImplReleaseRef(); SAL_DLLPRIVATE void ImplMakeUnique(); ImpBitmap* ImplGetImpBitmap() const; SAL_DLLPRIVATE void ImplSetImpBitmap( ImpBitmap* pImpBmp ); SAL_DLLPRIVATE void ImplAssignWithSize( const Bitmap& rBitmap ); SAL_DLLPRIVATE static sal_Bool ImplReadDIB( SvStream& rIStm, Bitmap& rBmp, sal_uLong nOffset, sal_Bool bMSOFormat = sal_False ); SAL_DLLPRIVATE static sal_Bool ImplReadDIBFileHeader( SvStream& rIStm, sal_uLong& rOffset ); SAL_DLLPRIVATE static sal_Bool ImplReadDIBInfoHeader( SvStream& rIStm, DIBInfoHeader& rHeader, sal_Bool& bTopDown, sal_Bool bMSOFormat = sal_False ); SAL_DLLPRIVATE static sal_Bool ImplReadDIBPalette( SvStream& rIStm, BitmapWriteAccess& rAcc, sal_Bool bQuad ); SAL_DLLPRIVATE static sal_Bool ImplReadDIBBits( SvStream& rIStm, DIBInfoHeader& rHeader, BitmapWriteAccess& rAcc, sal_Bool bTopDown ); SAL_DLLPRIVATE sal_Bool ImplWriteDIB( SvStream& rOStm, BitmapReadAccess& rAcc, sal_Bool bCompressed ) const; SAL_DLLPRIVATE static sal_Bool ImplWriteDIBFileHeader( SvStream& rOStm, BitmapReadAccess& rAcc ); SAL_DLLPRIVATE static sal_Bool ImplWriteDIBPalette( SvStream& rOStm, BitmapReadAccess& rAcc ); SAL_DLLPRIVATE static sal_Bool ImplWriteDIBBits( SvStream& rOStm, BitmapReadAccess& rAcc, sal_uLong nCompression, sal_uInt32& rImageSize ); SAL_DLLPRIVATE static void ImplDecodeRLE( sal_uInt8* pBuffer, DIBInfoHeader& rHeader, BitmapWriteAccess& rAcc, sal_Bool bRLE4 ); SAL_DLLPRIVATE static sal_Bool ImplWriteRLE( SvStream& rOStm, BitmapReadAccess& rAcc, sal_Bool bRLE4 ); SAL_DLLPRIVATE sal_Bool ImplScaleFast( const double& rScaleX, const double& rScaleY ); SAL_DLLPRIVATE sal_Bool ImplScaleInterpolate( const double& rScaleX, const double& rScaleY ); SAL_DLLPRIVATE bool ImplScaleConvolution( const double& rScaleX, const double& rScaleY, Kernel& aKernel); SAL_DLLPRIVATE bool ImplTransformAveraging( const double& rScaleX, const double& rScaleY, const Rectangle& rRotatedRectangle, const long nAngle10, const Color& rFillColor ); SAL_DLLPRIVATE bool ImplTransformBilinearFiltering( const double& rScaleX, const double& rScaleY, const Rectangle& rRotatedRectangle, const long nAngle10, const Color& rFillColor ); SAL_DLLPRIVATE static void ImplCalculateContributions( const int aSourceSize, const int aDestinationSize, int& aNumberOfContributions, double*& pWeights, int*& pPixels, int*& pCount, Kernel& aKernel ); SAL_DLLPRIVATE bool ImplConvolutionPass( Bitmap& aNewBitmap, const int nNewSize, BitmapReadAccess* pReadAcc, int aNumberOfContributions, double* pWeights, int* pPixels, int* pCount ); SAL_DLLPRIVATE sal_Bool ImplMakeMono( sal_uInt8 cThreshold ); SAL_DLLPRIVATE sal_Bool ImplMakeMonoDither(); SAL_DLLPRIVATE sal_Bool ImplMakeGreyscales( sal_uInt16 nGreyscales ); SAL_DLLPRIVATE sal_Bool ImplConvertUp( sal_uInt16 nBitCount, Color* pExtColor = NULL ); SAL_DLLPRIVATE sal_Bool ImplConvertDown( sal_uInt16 nBitCount, Color* pExtColor = NULL ); SAL_DLLPRIVATE sal_Bool ImplConvertGhosted(); SAL_DLLPRIVATE sal_Bool ImplDitherMatrix(); SAL_DLLPRIVATE sal_Bool ImplDitherFloyd(); SAL_DLLPRIVATE sal_Bool ImplDitherFloyd16(); SAL_DLLPRIVATE sal_Bool ImplReduceSimple( sal_uInt16 nColorCount ); SAL_DLLPRIVATE sal_Bool ImplReducePopular( sal_uInt16 nColorCount ); SAL_DLLPRIVATE sal_Bool ImplReduceMedian( sal_uInt16 nColorCount ); SAL_DLLPRIVATE void ImplMedianCut( sal_uLong* pColBuf, BitmapPalette& rPal, long nR1, long nR2, long nG1, long nG2, long nB1, long nB2, long nColors, long nPixels, long& rIndex ); SAL_DLLPRIVATE sal_Bool ImplConvolute3( const long* pMatrix, long nDivisor, const BmpFilterParam* pFilterParam, const Link* pProgress ); SAL_DLLPRIVATE sal_Bool ImplMedianFilter( const BmpFilterParam* pFilterParam, const Link* pProgress ); SAL_DLLPRIVATE sal_Bool ImplSobelGrey( const BmpFilterParam* pFilterParam, const Link* pProgress ); SAL_DLLPRIVATE sal_Bool ImplEmbossGrey( const BmpFilterParam* pFilterParam, const Link* pProgress ); SAL_DLLPRIVATE sal_Bool ImplSolarize( const BmpFilterParam* pFilterParam, const Link* pProgress ); SAL_DLLPRIVATE sal_Bool ImplSepia( const BmpFilterParam* pFilterParam, const Link* pProgress ); SAL_DLLPRIVATE sal_Bool ImplMosaic( const BmpFilterParam* pFilterParam, const Link* pProgress ); SAL_DLLPRIVATE sal_Bool ImplPopArt( const BmpFilterParam* pFilterParam, const Link* pProgress ); SAL_DLLPRIVATE bool ImplSeparableBlurFilter( const double aRadius = 0.7 ); SAL_DLLPRIVATE bool ImplSeparableUnsharpenFilter( const double aRadius = 0.7 ); SAL_DLLPRIVATE void ImplBlurContributions( const int aSize, const int aNumberOfContributions, double* pBlurVector, double*& pWeights, int*& pPixels, int*& pCount ); public: Bitmap(); Bitmap( const Bitmap& rBitmap ); Bitmap( const Size& rSizePixel, sal_uInt16 nBitCount, const BitmapPalette* pPal = NULL ); Bitmap( const ResId& rResId ); Bitmap( SalBitmap* pSalBitmap ); ~Bitmap(); Bitmap& operator=( const Bitmap& rBitmap ); inline sal_Bool operator!() const; inline sal_Bool operator==( const Bitmap& rBitmap ) const; inline sal_Bool operator!=( const Bitmap& rBitmap ) const; inline sal_Bool IsSameInstance( const Bitmap& rBmp ) const; sal_Bool IsEqual( const Bitmap& rBmp ) const; inline sal_Bool IsEmpty() const; void SetEmpty(); inline const MapMode& GetPrefMapMode() const; inline void SetPrefMapMode( const MapMode& rMapMode ); inline const Size& GetPrefSize() const; inline void SetPrefSize( const Size& rSize ); Size GetSizePixel() const; /** * The pixel size of a bitmap's source (e.g. an image file) * and the pixel size of its resulting bitmap can differ, * e.g. when the image reader has its preview mode enabled. */ void SetSourceSizePixel( const Size& ); sal_uInt16 GetBitCount() const; inline sal_uLong GetColorCount() const; inline sal_uLong GetSizeBytes() const; sal_Bool HasGreyPalette() const; /** get system dependent bitmap data @param rData The system dependent BitmapSystemData structure to be filled @return sal_True if the bitmap has a valid system object (e.g. not empty) */ bool GetSystemData( BitmapSystemData& rData ) const; sal_uLong GetChecksum() const; Bitmap CreateDisplayBitmap( OutputDevice* pDisplay ); Bitmap GetColorTransformedBitmap() const; static const BitmapPalette& GetGreyPalette( int nEntries ); public: sal_Bool MakeMono( sal_uInt8 cThreshold ); /** Convert bitmap format @param eConversion The format this bitmap should be converted to. @return sal_True, if the conversion was completed successfully. */ sal_Bool Convert( BmpConversion eConversion ); /** Reduce number of colors for the bitmap @param nNewColorCount Maximal number of bitmap colors after the reduce operation @param eReduce Algorithm to use for color reduction @return sal_True, if the color reduction operation was completed successfully. */ sal_Bool ReduceColors( sal_uInt16 nNewColorCount, BmpReduce eReduce = BMP_REDUCE_SIMPLE ); /** Apply a dither algorithm to the bitmap This method dithers the bitmap inplace, i.e. a true color bitmap is converted to a paletted bitmap, reducing the color deviation by error diffusion. @param nDitherFlags The algorithm to be used for dithering @param pDitherPal A custom palette to be used when dithering (not yet implemented, leave NULL) */ sal_Bool Dither( sal_uLong nDitherFlags = BMP_DITHER_MATRIX ); /** Crop the bitmap @param rRectPixel A rectangle specifying the crop amounts on all four sides of the bitmap. If the upper left corner of the bitmap is assigned (0,0), then this method cuts out the given rectangle from the bitmap. Note that the rectangle is clipped to the bitmap's dimension, i.e. negative left,top rectangle coordinates or exceeding width or height is ignored. @return sal_True, if cropping was performed successfully. If nothing had to be cropped, because e.g. the crop rectangle included the bitmap, sal_False is returned, too! */ sal_Bool Crop( const Rectangle& rRectPixel ); /** Expand the bitmap by pixel padding @param nDX Number of pixel to pad at the right border of the bitmap @param nDY Number of scanlines to pad at the bottom border of the bitmap @param pInitColor Color to use for padded pixel @return sal_True, if padding was performed successfully. sal_False is not only returned when the operation failed, but also if nothing had to be done, e.g. because nDX and nDY were zero. */ sal_Bool Expand( sal_uLong nDX, sal_uLong nDY, const Color* pInitColor = NULL ); /** Copy a rectangular area from another bitmap @param rRectDst Destination rectangle in this bitmap. This is clipped to the bitmap dimensions. @param rRectSrc Source rectangle in pBmpSrc. This is clipped to the source bitmap dimensions. Note further that no scaling takes place during this copy operation, i.e. only the minimum of source and destination rectangle's width and height are used. @param pBmpSrc The source bitmap to copy from. If this argument is NULL, or equal to the object this method is called on, copying takes place within the same bitmap. @return sal_True, if the operation completed successfully. sal_False is not only returned when the operation failed, but also if nothing had to be done, e.g. because one of the rectangles are empty. */ sal_Bool CopyPixel( const Rectangle& rRectDst, const Rectangle& rRectSrc, const Bitmap* pBmpSrc = NULL ); /** Perform boolean operations with another bitmap @param rMask The mask bitmap in the selected combine operation @param eCombine The combine operation to perform on the bitmap @return sal_True, if the operation was completed successfully. */ sal_Bool CombineSimple( const Bitmap& rMask, BmpCombine eCombine ); /** Alpha-blend the given bitmap against a specified uniform background color. @attention This method might convert paletted bitmaps to truecolor, to be able to represent every necessary color. Note that during alpha blending, lots of colors not originally included in the bitmap can be generated. @param rAlpha Alpha mask to blend with @param rBackgroundColor Background color to use for every pixel during alpha blending @return sal_True, if blending was successful, sal_False otherwise */ sal_Bool Blend( const AlphaMask& rAlpha, const Color& rBackgroundColor ); /** Fill the entire bitmap with the given color @param rFillColor Color value to use for filling @return sal_True, if the operation was completed successfully. */ sal_Bool Erase( const Color& rFillColor ); /** Perform the Invert operation on every pixel @return sal_True, if the operation was completed successfully. */ sal_Bool Invert(); /** Mirror the bitmap @param nMirrorFlags About which axis (horizontal, vertical, or both) to mirror @return sal_True, if the operation was completed successfully. */ sal_Bool Mirror( sal_uLong nMirrorFlags ); /** Scale the bitmap @param rNewSize The resulting size of the scaled bitmap @param nScaleFlag The algorithm to be used for scaling @return sal_True, if the operation was completed successfully. */ sal_Bool Scale( const Size& rNewSize, sal_uLong nScaleFlag = BMP_SCALE_DEFAULT ); /** Scale the bitmap @param rScaleX The scale factor in x direction. @param rScaleY The scale factor in y direction. @return sal_True, if the operation was completed successfully. */ sal_Bool Scale( const double& rScaleX, const double& rScaleY, sal_uLong nScaleFlag = BMP_SCALE_DEFAULT ); /** Rotate bitmap by the specified angle @param nAngle10 The rotation angle in tenth of a degree. The bitmap is always rotated around its center. @param rFillColor The color to use for filling blank areas. During rotation, the bitmap is enlarged such that the whole rotation result fits in. The empty spaces around that rotated original bitmap are then filled with this color. @return sal_True, if the operation was completed successfully. */ sal_Bool Rotate( long nAngle10, const Color& rFillColor ); /** Create on-off mask from bitmap This method creates a bitmask from the bitmap, where every pixel that equals rTransColor is set transparent, the rest opaque. @param rTransColor Color value where the bitmask should be transparent @param nTol Tolerance value. Specifies the maximal difference between rTransColor and the individual pixel values, such that the corresponding pixel is still regarded transparent. @return the resulting bitmask. */ Bitmap CreateMask( const Color& rTransColor, sal_uLong nTol = 0UL ) const; /** Create region of similar colors in a given rectangle @param rColor All pixel which have this color are included in the calculated region @param rRect The rectangle within which matching pixel are looked for. This rectangle is always clipped to the bitmap dimensions. @return the generated region. */ Region CreateRegion( const Color& rColor, const Rectangle& rRect ) const; /** Replace all pixel where the given mask is on with the specified color @param rMask Mask specifying which pixel should be replaced @param rReplaceColor Color to be placed in all changed pixel @return sal_True, if the operation was completed successfully. */ sal_Bool Replace( const Bitmap& rMask, const Color& rReplaceColor ); /** Merge bitmap with given background color according to specified alpha mask @param rAlpha Alpha mask specifying the amount of background color to merge in @param rMergeColor Background color to be used for merging @return sal_True, if the operation was completed successfully. */ sal_Bool Replace( const AlphaMask& rAlpha, const Color& rMergeColor ); /** Replace all pixel having the search color with the specified color @param rSearchColor Color specifying which pixel should be replaced @param rReplaceColor Color to be placed in all changed pixel @param nTol Tolerance value. Specifies the maximal difference between rSearchColor and the individual pixel values, such that the corresponding pixel is still regarded a match. @return sal_True, if the operation was completed successfully. */ sal_Bool Replace( const Color& rSearchColor, const Color& rReplaceColor, sal_uLong nTol = 0 ); /** Replace all pixel having one the search colors with the corresponding replace color @param pSearchColor Array of colors specifying which pixel should be replaced @param pReplaceColor Array of colors to be placed in all changed pixel @param nColorCount Size of the aforementioned color arrays @param nTol Tolerance value. Specifies the maximal difference between pSearchColor colors and the individual pixel values, such that the corresponding pixel is still regarded a match. @return sal_True, if the operation was completed successfully. */ sal_Bool Replace( const Color* pSearchColors, const Color* rReplaceColors, sal_uLong nColorCount, sal_uLong* pTols = NULL ); /** Convert the bitmap to a PolyPolygon This works by putting continuous areas of the same color into a polygon, by tracing its bounding line. @param rPolyPoly The resulting PolyPolygon @param nFlags Whether the inline or the outline of the color areas should be represented by the polygon @param pProgress A callback for showing the progress of the vectorization @return sal_True, if the operation was completed successfully. */ sal_Bool Vectorize( PolyPolygon& rPolyPoly, sal_uLong nFlags = BMP_VECTORIZE_OUTER, const Link* pProgress = NULL ); /** Convert the bitmap to a meta file This works by putting continuous areas of the same color into polygons painted in this color, by tracing the area's bounding line. @param rMtf The resulting meta file @param cReduce If non-null, minimal size of bound rects for individual polygons. Smaller ones are ignored. @param nFlags Whether the inline or the outline of the color areas should be represented by the polygon @param pProgress A callback for showing the progress of the vectorization @return sal_True, if the operation was completed successfully. */ sal_Bool Vectorize( GDIMetaFile& rMtf, sal_uInt8 cReduce = 0, sal_uLong nFlags = BMP_VECTORIZE_INNER, const Link* pProgress = NULL ); /** Change various global color characteristics @param nLuminancePercent Percent of luminance change, valid range [-100,100]. Values outside this range are clipped to the valid range. @param nContrastPercent Percent of contrast change, valid range [-100,100]. Values outside this range are clipped to the valid range. @param nChannelRPercent Percent of red channel change, valid range [-100,100]. Values outside this range are clipped to the valid range. @param nChannelGPercent Percent of green channel change, valid range [-100,100]. Values outside this range are clipped to the valid range. @param nChannelBPercent Percent of blue channel change, valid range [-100,100]. Values outside this range are clipped to the valid range. @param fGamma Exponent of the gamma function applied to the bitmap. The value 1.0 results in no change, the valid range is (0.0,10.0]. Values outside this range are regarded as 1.0. @param bInvert If sal_True, invert the channel values with the logical 'not' operator @return sal_True, if the operation was completed successfully. */ sal_Bool Adjust( short nLuminancePercent = 0, short nContrastPercent = 0, short nChannelRPercent = 0, short nChannelGPercent = 0, short nChannelBPercent = 0, double fGamma = 1.0, sal_Bool bInvert = sal_False ); /** Apply specified filter to the bitmap @param eFilter The filter algorithm to apply @param pFilterParam Various parameter for the different bitmap filter algorithms @param pProgress A callback for showing the progress of the vectorization @return sal_True, if the operation was completed successfully. */ sal_Bool Filter( BmpFilter eFilter, const BmpFilterParam* pFilterParam = NULL, const Link* pProgress = NULL ); public: BitmapReadAccess* AcquireReadAccess(); BitmapWriteAccess* AcquireWriteAccess(); void ReleaseAccess( BitmapReadAccess* pAccess ); typedef vcl::ScopedBitmapAccess< BitmapReadAccess, Bitmap, &Bitmap::AcquireReadAccess > ScopedReadAccess; typedef vcl::ScopedBitmapAccess< BitmapWriteAccess, Bitmap, &Bitmap::AcquireWriteAccess > ScopedWriteAccess; public: sal_Bool Read( SvStream& rIStm, sal_Bool bFileHeader = sal_True, sal_Bool bMSOFormat = sal_False ); sal_Bool Write( SvStream& rOStm, sal_Bool bCompressed = sal_True, sal_Bool bFileHeader = sal_True ) const; friend VCL_DLLPUBLIC SvStream& operator>>( SvStream& rIStm, Bitmap& rBitmap ); friend VCL_DLLPUBLIC SvStream& operator<<( SvStream& rOStm, const Bitmap& rBitmap ); }; // ----------- // - Inlines - // ----------- inline sal_Bool Bitmap::operator!() const { return( mpImpBmp == NULL ); } // ------------------------------------------------------------------ inline sal_Bool Bitmap::operator==( const Bitmap& rBitmap ) const { return( rBitmap.mpImpBmp == mpImpBmp ); } // ------------------------------------------------------------------ inline sal_Bool Bitmap::operator!=( const Bitmap& rBitmap ) const { return( rBitmap.mpImpBmp != mpImpBmp ); } // ------------------------------------------------------------------ inline sal_Bool Bitmap::IsSameInstance( const Bitmap& rBitmap ) const { return( rBitmap.mpImpBmp == mpImpBmp ); } // ------------------------------------------------------------------ inline sal_Bool Bitmap::IsEmpty() const { return( mpImpBmp == NULL ); } // ------------------------------------------------------------------ inline const MapMode& Bitmap::GetPrefMapMode() const { return maPrefMapMode; } // ------------------------------------------------------------------ inline void Bitmap::SetPrefMapMode( const MapMode& rMapMode ) { maPrefMapMode = rMapMode; } // ------------------------------------------------------------------ inline const Size& Bitmap::GetPrefSize() const { return maPrefSize; } // ------------------------------------------------------------------ inline void Bitmap::SetPrefSize( const Size& rSize ) { maPrefSize = rSize; } // ------------------------------------------------------------------ inline sal_uLong Bitmap::GetColorCount() const { return( 1UL << (sal_uLong) GetBitCount() ); } // ------------------------------------------------------------------ inline sal_uLong Bitmap::GetSizeBytes() const { const Size aSizePix( GetSizePixel() ); return( ( (sal_uLong) aSizePix.Width() * aSizePix.Height() * GetBitCount() ) >> 3UL ); } #endif // _SV_BITMAP_HXX /* vim:set shiftwidth=4 softtabstop=4 expandtab: */