6806616023
Required for subsequent soft edge effect improvement Change-Id: I9351b827a83c5651100e73a6846c834f491b861d Reviewed-on: https://gerrit.libreoffice.org/c/core/+/95027 Tested-by: Jenkins Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
82 lines
3.3 KiB
C++
82 lines
3.3 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 : public Bitmap
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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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virtual ~AlphaMask() override;
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AlphaMask& operator=( const Bitmap& rBitmap );
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AlphaMask& operator=( const AlphaMask& rAlphaMask ) { return static_cast<AlphaMask&>( Bitmap::operator=( rAlphaMask ) ); }
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AlphaMask& operator=( AlphaMask&& rAlphaMask ) noexcept { return static_cast<AlphaMask&>( Bitmap::operator=( std::move(rAlphaMask) ) ); }
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bool operator!() const { return Bitmap::operator!(); }
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bool operator==( const AlphaMask& rAlphaMask ) const { return Bitmap::operator==(rAlphaMask); }
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bool operator!=( const AlphaMask& rAlphaMask ) const { return Bitmap::operator!=(rAlphaMask); }
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void SetPrefMapMode( const MapMode& rMapMode ) { Bitmap::SetPrefMapMode( rMapMode ); }
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void SetPrefSize( const Size& rSize ) { Bitmap::SetPrefSize( rSize ); }
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Bitmap const & GetBitmap() const;
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void Erase( sal_uInt8 cTransparency );
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void Replace( const Bitmap& rMask, sal_uInt8 rReplaceTransparency );
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void Replace( sal_uInt8 cSearchTransparency, sal_uInt8 cReplaceTransparency );
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void BlendWith(const Bitmap& rOther);
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BitmapReadAccess* AcquireAlphaReadAccess() { return Bitmap::AcquireReadAccess(); }
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BitmapWriteAccess* AcquireAlphaWriteAccess() { return Bitmap::AcquireWriteAccess(); }
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void ReleaseAccess( BitmapReadAccess* pAccess );
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typedef vcl::ScopedBitmapAccess<BitmapReadAccess, AlphaMask, &AlphaMask::AcquireAlphaReadAccess> ScopedReadAccess;
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using Bitmap::IsEmpty;
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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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SAL_DLLPRIVATE const Bitmap& ImplGetBitmap() const;
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SAL_DLLPRIVATE void ImplSetBitmap( const Bitmap& rBitmap );
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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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