f54d9547c0
Change-Id: I24c429c7cb8283a384b72499d1c3f4c2f1457c33 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/162155 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
121 lines
4.7 KiB
C++
121 lines
4.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_VCL_ALPHA_HXX
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#define INCLUDED_VCL_ALPHA_HXX
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#include <sal/config.h>
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#include <utility>
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#include <vcl/dllapi.h>
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#include <vcl/bitmap.hxx>
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class BitmapEx;
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class VCL_DLLPUBLIC AlphaMask final
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{
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public:
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AlphaMask();
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explicit AlphaMask( const Bitmap& rBitmap );
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AlphaMask( const AlphaMask& rAlphaMask );
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AlphaMask( AlphaMask&& rAlphaMask );
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explicit AlphaMask( const Size& rSizePixel, const sal_uInt8* pEraseTransparency = nullptr );
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~AlphaMask();
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AlphaMask& operator=( const Bitmap& rBitmap );
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AlphaMask& operator=( const AlphaMask& rAlphaMask ) { maBitmap = rAlphaMask.maBitmap; return *this; }
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AlphaMask& operator=( AlphaMask&& rAlphaMask ) noexcept { maBitmap = std::move(rAlphaMask.maBitmap); return *this; }
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bool operator==( const AlphaMask& rAlphaMask ) const { return maBitmap == rAlphaMask.maBitmap; }
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bool operator!=( const AlphaMask& rAlphaMask ) const { return maBitmap != rAlphaMask.maBitmap; }
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Bitmap const & GetBitmap() const { return maBitmap; }
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void Erase( sal_uInt8 cTransparency );
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void BlendWith(const AlphaMask& rOther);
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/** Perform boolean OR operation with another alpha-mask
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@param rMask
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The mask bitmap in the selected combine operation
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@return true, if the operation was completed successfully.
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*/
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bool AlphaCombineOr( const AlphaMask& rMask );
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// check if alpha is used, returns true if at least one pixel has transparence
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bool hasAlpha() const;
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bool IsEmpty() const { return maBitmap.IsEmpty(); }
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void SetEmpty() { maBitmap.SetEmpty(); }
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vcl::PixelFormat getPixelFormat() const { return maBitmap.getPixelFormat(); }
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sal_Int64 GetSizeBytes() const { return maBitmap.GetSizeBytes(); }
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Size GetSizePixel() const { return maBitmap.GetSizePixel(); }
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void SetPrefSize( const Size& rSize ) { maBitmap.SetPrefSize(rSize); }
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void SetPrefMapMode( const MapMode& rMapMode ) { maBitmap.SetPrefMapMode(rMapMode); }
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BitmapChecksum GetChecksum() const { return maBitmap.GetChecksum(); }
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bool Invert();
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bool Mirror( BmpMirrorFlags nMirrorFlags ) { return maBitmap.Mirror(nMirrorFlags); }
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bool Scale( const Size& rNewSize, BmpScaleFlag nScaleFlag = BmpScaleFlag::Default ) { return maBitmap.Scale(rNewSize, nScaleFlag); }
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bool Scale( const double& rScaleX, const double& rScaleY, BmpScaleFlag nScaleFlag = BmpScaleFlag::Default )
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{ return maBitmap.Scale(rScaleX, rScaleY, nScaleFlag); }
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bool Convert( BmpConversion eConversion ) { return maBitmap.Convert(eConversion); }
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vcl::Region CreateRegion( const Color& rColor, const tools::Rectangle& rRect ) const { return maBitmap.CreateRegion(rColor, rRect); }
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bool Rotate( Degree10 nAngle10, const Color& rFillColor ) { return maBitmap.Rotate(nAngle10, rFillColor); }
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bool Crop( const tools::Rectangle& rRectPixel ) { return maBitmap.Crop(rRectPixel); }
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bool Expand( sal_Int32 nDX, sal_Int32 nDY, const Color* pInitColor = nullptr ) { return maBitmap.Expand(nDX, nDY, pInitColor); }
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bool CopyPixel( const tools::Rectangle& rRectDst,
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const tools::Rectangle& rRectSrc,
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const AlphaMask& rBmpSrc )
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{ return maBitmap.CopyPixel(rRectDst, rRectSrc, rBmpSrc.maBitmap); }
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bool CopyPixel_AlphaOptimized(
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const tools::Rectangle& rRectDst,
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const tools::Rectangle& rRectSrc,
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const AlphaMask& rBmpSrc )
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{ return maBitmap.CopyPixel_AlphaOptimized(rRectDst, rRectSrc, rBmpSrc); }
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private:
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friend class BitmapEx;
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friend class ::OutputDevice;
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friend bool VCL_DLLPUBLIC ReadDIBBitmapEx(BitmapEx& rTarget, SvStream& rIStm, bool bFileHeader, bool bMSOFormat);
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Bitmap maBitmap;
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};
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#endif // INCLUDED_VCL_ALPHA_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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