Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 512 insertions, 0 deletions

diff --git a/include/vcl/bitmapex.hxx b/include/vcl/bitmapex.hxx
new file mode 100644
index 000000000..f847c9f6d
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+++ b/include/vcl/bitmapex.hxx
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+/* -*- 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 <vcl/dllapi.h>
+#include <vcl/alpha.hxx>
+#include <vcl/Scanline.hxx>
+#include <tools/color.hxx>
+#include <tools/degree.hxx>
+
+#include <sal/types.h>
+
+namespace com::sun::star::rendering {
+    class XBitmapCanvas;
+}
+namespace com::sun::star::uno { template <class interface_type> class Reference; }
+namespace basegfx { class BColorModifierStack; }
+
+class SAL_WARN_UNUSED VCL_DLLPUBLIC BitmapEx
+{
+public:
+
+                        BitmapEx();
+    explicit            BitmapEx( const OUString& rIconName );
+                        BitmapEx( const BitmapEx& rBitmapEx );
+                        BitmapEx( const BitmapEx& rBitmapEx, Point aSrc, Size aSize );
+                        BitmapEx(Size aSize, vcl::PixelFormat ePixelFormat);
+    explicit            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&           operator=( const BitmapEx& rBitmapEx );
+    BitmapEx&           operator=( const Bitmap& rBitmap ) { return operator=(BitmapEx(rBitmap)); }
+    bool                operator==( const BitmapEx& rBitmapEx ) const;
+    bool                operator!=( const BitmapEx& rBitmapEx ) const { return !(*this==rBitmapEx); }
+
+    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;
+
+    Bitmap              GetBitmap( Color aTransparentReplaceColor ) const;
+    /// Gives direct access to the contained bitmap.
+    const Bitmap&       GetBitmap() const;
+
+    bool                IsAlpha() const;
+    AlphaMask           GetAlpha() const;
+
+    const Size&         GetSizePixel() const { return maBitmapSize; }
+    void                SetSizePixel(const Size& rNewSize);
+
+    const Size&         GetPrefSize() const { return maBitmap.GetPrefSize(); }
+    void                SetPrefSize( const Size& rPrefSize ) { maBitmap.SetPrefSize( rPrefSize ); }
+
+    const MapMode&      GetPrefMapMode() const { return maBitmap.GetPrefMapMode(); }
+    void                SetPrefMapMode( const MapMode& rPrefMapMode ) { maBitmap.SetPrefMapMode( rPrefMapMode ); }
+
+    vcl::PixelFormat getPixelFormat() const
+    {
+        return maBitmap.getPixelFormat();
+    }
+
+    sal_Int64           GetSizeBytes() const;
+    BitmapChecksum      GetChecksum() const;
+
+    /** 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 );
+
+    /** 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 tools::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 bExpandTransparent
+        Whether to expand the transparency color or not.
+     */
+    void                Expand(
+                            sal_Int32 nDX, sal_Int32 nDY,
+                            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 tools::Rectangle& rRectDst,
+                            const tools::Rectangle& rRectSrc,
+                            const BitmapEx* pBmpExSrc );
+
+    /** 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( BmpMirrorFlags 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,
+                            BmpScaleFlag nScaleFlag = BmpScaleFlag::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,
+                            BmpScaleFlag nScaleFlag = BmpScaleFlag::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(
+                            Degree10 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
+     */
+    void                Replace(
+                            const Color& rSearchColor,
+                            const Color& rReplaceColor );
+
+    /** 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 nTolerance
+        Tolerance value. Specifies the maximal difference between
+        rSearchColor and the individual pixel values, such that the
+        corresponding pixel is still regarded a match.
+     */
+    void                Replace(
+                            const Color& rSearchColor,
+                            const Color& rReplaceColor,
+                            sal_uInt8 nTolerance );
+
+    /** 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.
+     */
+    void                Replace(
+                            const Color* pSearchColors,
+                            const Color* pReplaceColors,
+                            size_t nColorCount );
+
+    /** 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 rReplaceColors
+        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.
+     */
+    void                Replace(
+                            const Color* pSearchColors,
+                            const Color* pReplaceColors,
+                            size_t nColorCount,
+                            sal_uInt8 const * pTols );
+
+    /** Replace transparency with given color.
+     */
+    void                ReplaceTransparency( const Color& rColor );
+
+    /** Get contours in image */
+    tools::Polygon      GetContour( bool bContourEdgeDetect, const tools::Rectangle* pWorkRect );
+
+    /** 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 msoBrightness
+        Use the same formula for brightness as used by MSOffice.
+
+        @return true, if the operation was completed successfully.
+     */
+    bool                Adjust(
+                            short nLuminancePercent,
+                            short nContrastPercent,
+                            short nChannelRPercent,
+                            short nChannelGPercent,
+                            short nChannelBPercent,
+                            double fGamma = 1.0,
+                            bool bInvert = false,
+                            bool msoBrightness = false );
+
+    /** Get alpha at given position
+
+        @param nX
+        integer X-Position in Bitmap
+
+        @param nY
+        integer Y-Position in Bitmap
+
+        @return alpha value in the range of [0 .. 255] where
+                0 is fully transparent, 255 is not transparent
+     */
+    sal_uInt8           GetAlpha(
+                            sal_Int32 nX,
+                            sal_Int32 nY) const;
+
+    /** Get pixel color (including alpha) at given position
+
+        @param nX
+        integer X-Position in Bitmap
+
+        @param nY
+        integer Y-Position in Bitmap
+     */
+    ::Color             GetPixelColor(
+                            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 coordinates
+    */
+    [[nodiscard]]
+    BitmapEx            TransformBitmapEx(
+                            double fWidth,
+                            double fHeight,
+                            const basegfx::B2DHomMatrix& rTransformation) 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
+
+        The target 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
+    */
+    [[nodiscard]]
+    BitmapEx            getTransformed(
+                            const basegfx::B2DHomMatrix& rTransformation,
+                            const basegfx::B2DRange& rVisibleRange,
+                            double fMaximumArea) const;
+
+    /** Create ColorStack-modified version of this BitmapEx
+
+        @param rBColorModifierStack
+        A ColrModifierStack which defines how each pixel has to be modified
+    */
+    [[nodiscard]]
+    BitmapEx            ModifyBitmapEx( const basegfx::BColorModifierStack& rBColorModifierStack) const;
+
+    [[nodiscard]]
+    static BitmapEx     AutoScaleBitmap( BitmapEx const & aBitmap, const tools::Long aStandardSize );
+
+    /// populate from a canvas implementation
+    bool                Create(
+                            const css::uno::Reference< css::rendering::XBitmapCanvas > &xBitmapCanvas,
+                            const Size &rSize );
+
+    void                setAlphaFrom( sal_uInt8 cIndexFrom, sal_Int8 nAlphaTo );
+
+    void                AdjustTransparency( sal_uInt8 cTrans );
+
+    void                CombineMaskOr(Color maskColor, sal_uInt8 nTol);
+
+    /**
+     * Retrieves the color model data we need for the XImageConsumer stuff.
+     */
+    void                GetColorModel(css::uno::Sequence< sal_Int32 >& rRGBPalette,
+                            sal_uInt32& rnRedMask, sal_uInt32& rnGreenMask, sal_uInt32& rnBlueMask, sal_uInt32& rnAlphaMask, sal_uInt32& rnTransparencyIndex,
+                            sal_uInt32& rnWidth, sal_uInt32& rnHeight, sal_uInt8& rnBitCount);
+
+    SAL_DLLPRIVATE std::shared_ptr<SalBitmap> const & ImplGetBitmapSalBitmap() const { return maBitmap.ImplGetSalBitmap(); }
+
+
+private:
+    friend class ImpGraphic;
+    friend class OutputDevice;
+    friend bool VCL_DLLPUBLIC WriteDIBBitmapEx(const BitmapEx& rSource, SvStream& rOStm);
+    friend bool VCL_DLLPUBLIC ReadRawDIB(BitmapEx& rTarget, const unsigned char* pBuf,
+                                    const ScanlineFormat nFormat,
+                                    const int nHeight,
+                                    const int nStride);
+
+    void  loadFromIconTheme( const OUString& rIconName );
+
+    Bitmap              maBitmap;
+    Bitmap              maAlphaMask;
+    Size                maBitmapSize;
+};
+
+
+/** 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 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: */