/* -*- 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 INCLUDED_VCL_BITMAPEX_HXX #define INCLUDED_VCL_BITMAPEX_HXX #include #include #include #include #include #include namespace com { namespace sun { namespace star { namespace rendering { class XBitmapCanvas; } } } } // - TransparentType - enum TransparentType { TRANSPARENT_NONE, TRANSPARENT_COLOR, TRANSPARENT_BITMAP }; // - BitmapEx - class VCL_DLLPUBLIC BitmapEx { private: friend class ImpGraphic; friend bool VCL_DLLPUBLIC WriteDIBBitmapEx(const BitmapEx& rSource, SvStream& rOStm); Bitmap aBitmap; Bitmap aMask; Size aBitmapSize; Color aTransparentColor; TransparentType eTransparent; bool bAlpha; public: SAL_DLLPRIVATE ImpBitmap* ImplGetBitmapImpBitmap() const { return aBitmap.ImplGetImpBitmap(); } SAL_DLLPRIVATE ImpBitmap* ImplGetMaskImpBitmap() const { return aMask.ImplGetImpBitmap(); } BitmapEx(); BitmapEx( const ResId& rResId ); BitmapEx( const BitmapEx& rBitmapEx ); BitmapEx( const BitmapEx& rBitmapEx, Point aSrc, Size aSize ); BitmapEx( const Bitmap& rBmp ); BitmapEx( const Bitmap& rBmp, const Bitmap& rMask ); BitmapEx( const Bitmap& rBmp, const AlphaMask& rAlphaMask ); BitmapEx( const Bitmap& rBmp, const Color& rTransparentColor ); ~BitmapEx(); BitmapEx& operator=( const BitmapEx& rBitmapEx ); bool operator==( const BitmapEx& rBitmapEx ) const; bool operator!=( const BitmapEx& rBitmapEx ) const { return !(*this==rBitmapEx); } bool operator!() const { return !aBitmap; } bool IsEqual( const BitmapEx& rBmpEx ) const; bool IsEmpty() const; void SetEmpty(); void Clear(); void Draw( OutputDevice* pOutDev, const Point& rDestPt ) const; void Draw( OutputDevice* pOutDev, const Point& rDestPt, const Size& rDestSize ) const; bool IsTransparent() const; TransparentType GetTransparentType() const { return eTransparent; } Bitmap GetBitmap( const Color* pTransReplaceColor = NULL ) const; Bitmap GetMask() const; BitmapEx GetColorTransformedBitmapEx() const; bool IsAlpha() const; AlphaMask GetAlpha() const; const Size& GetSizePixel() const { return aBitmapSize; } void SetSizePixel( const Size& rNewSize, sal_uInt32 nScaleFlag = BMP_SCALE_DEFAULT ); const Size& GetPrefSize() const { return aBitmap.GetPrefSize(); } void SetPrefSize( const Size& rPrefSize ) { aBitmap.SetPrefSize( rPrefSize ); } const MapMode& GetPrefMapMode() const { return aBitmap.GetPrefMapMode(); } void SetPrefMapMode( const MapMode& rPrefMapMode ) { aBitmap.SetPrefMapMode( rPrefMapMode ); } const Color& GetTransparentColor() const { return aTransparentColor; } void SetTransparentColor( const Color& rColor ) { aTransparentColor = rColor; } sal_uInt16 GetBitCount() const { return aBitmap.GetBitCount(); } sal_uLong GetSizeBytes() const; sal_uLong GetChecksum() const; public: /** Convert bitmap format @param eConversion The format this bitmap should be converted to. @return true, if the conversion was completed successfully. */ 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 true, if the color reduction operation was completed successfully. */ 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 */ 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 true, if cropping was performed successfully. If nothing had to be cropped, because e.g. the crop rectangle included the bitmap, false is returned, too! */ 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 @param bExpandTransparent Whether to expand the transparency color or not. @return true, if padding was performed successfully. 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. */ bool Expand( sal_uLong nDX, sal_uLong nDY, const Color* pInitColor = NULL, bool bExpandTransparent = false ); /** 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 pBmpExSrc 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 true, if the operation completed successfully. 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. */ bool CopyPixel( const Rectangle& rRectDst, const Rectangle& rRectSrc, const BitmapEx* pBmpExSrc = NULL ); /** Fill the entire bitmap with the given color @param rFillColor Color value to use for filling. Set the transparency part of the color to fill the mask. @return true, if the operation was completed successfully. */ bool Erase( const Color& rFillColor ); /** Perform the Invert operation on every pixel @return true, if the operation was completed successfully. */ bool Invert(); /** Mirror the bitmap @param nMirrorFlags About which axis (horizontal, vertical, or both) to mirror @return true, if the operation was completed successfully. */ 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 true, if the operation was completed successfully. */ bool Scale( const Size& rNewSize, sal_uInt32 nScaleFlag = BMP_SCALE_DEFAULT ); /** Scale the bitmap @param rScaleX The scale factor in x direction. @param rScaleY The scale factor in y direction. @param nScaleFlag The algorithm to be used for scaling @return true, if the operation was completed successfully. */ bool Scale( const double& rScaleX, const double& rScaleY, sal_uInt32 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 true, if the operation was completed successfully. */ bool Rotate( long nAngle10, const Color& rFillColor ); /** 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 true, if the operation was completed successfully. */ 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 pSearchColors Array of colors specifying which pixel should be replaced @param pReplaceColors Array of colors to be placed in all changed pixel @param nColorCount Size of the aforementioned color arrays @param pTols 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 true, if the operation was completed successfully. */ bool Replace( const Color* pSearchColors, const Color* pReplaceColors, sal_uLong nColorCount, const sal_uLong* pTols = 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 true, invert the channel values with the logical 'not' operator @param msoFormula Use the same formula for brightness as used by MSOffice. @return true, if the operation was completed successfully. */ bool Adjust( short nLuminancePercent = 0, short nContrastPercent = 0, short nChannelRPercent = 0, short nChannelGPercent = 0, short nChannelBPercent = 0, double fGamma = 1.0, bool bInvert = false, bool msoBrightness = 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 true, if the operation was completed successfully. */ bool Filter( BmpFilter eFilter, const BmpFilterParam* pFilterParam = NULL, const Link* pProgress = NULL ); /** Get transparency at given position @param nX integer X-Position in Bitmap @param nY integer Y-Position in Bitmap @return transparency value in the range of [0 .. 255] where 0 is not transparent, 255 is fully transparent */ sal_uInt8 GetTransparency(sal_Int32 nX, sal_Int32 nY) const; /** Create transformed Bitmap @param fWidth The target width in pixels @param fHeight The target height in pixels @param rTransformation The back transformation for each pixel in (0 .. fWidth),(0 .. fHeight) to local pixel coordiantes @param bSmooth Defines if pixel interpolation is to be used to create the result */ BitmapEx TransformBitmapEx( double fWidth, double fHeight, const basegfx::B2DHomMatrix& rTransformation, bool bSmooth = true) const; /** Create transformed Bitmap @param rTransformation The transformation from unit coordinates to the unit range @param rVisibleRange The relative visible range in unit coordinates, relative to (0,0,1,1) which defines the whole target area @param fMaximumArea A limitation for the maximum size of pixels to use for the result @param bSmooth Defines if pixel interpolation is to be used to create the result The traget size of the result bitmap is defined by transforming the given rTargetRange with the given rTransformation; the area of the result is linearly scaled to not exceed the given fMaximumArea @return The transformed bitmap */ BitmapEx getTransformed( const basegfx::B2DHomMatrix& rTransformation, const basegfx::B2DRange& rVisibleRange, double fMaximumArea = 500000.0, bool bSmooth = true) const; /** Create ColorStack-modified version of this BitmapEx @param rBColorModifierStack A ColrModifierStack which defines how each pixel has to be modified */ BitmapEx ModifyBitmapEx(const basegfx::BColorModifierStack& rBColorModifierStack) const; public: static BitmapEx AutoScaleBitmap(BitmapEx & aBitmap, const long aStandardSize); /// populate from a canvas implementation bool Create( const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmapCanvas > &xBitmapCanvas, const Size &rSize ); }; /** Create a blend frame as BitmapEx @param nAlpha The blend value defines how strong the frame will be blended with the existing content, 255 == full coverage, 0 == no frame will be drawn @param aColorTopLeft, aColorBottomRight The colors defining the frame. These colors are linearly interpolated from aColorTopLeft and aColorBottomRight using the width and height of the area @param rSize The size of the frame in pixels */ BitmapEx VCL_DLLPUBLIC createBlendFrame( const Size& rSize, sal_uInt8 nAlpha, Color aColorTopLeft, Color aColorBottomRight); /** Create a blend frame as BitmapEx @param nAlpha The blend value defines how strong the frame will be blended with the existing content, 255 == full coverage, 0 == no frame will be drawn @param aColorTopLeft, aColorBottomRight, aColorTopRight, aColorBottomLeft The colors defining the frame. @param rSize The size of the frame in pixels */ BitmapEx VCL_DLLPUBLIC createBlendFrame( const Size& rSize, sal_uInt8 nAlpha, Color aColorTopLeft, Color aColorTopRight, Color aColorBottomRight, Color aColorBottomLeft); #endif // INCLUDED_VCL_BITMAPEX_HXX /* vim:set shiftwidth=4 softtabstop=4 expandtab: */