21c0deb198
Change-Id: I9562d74b5b75d6ad6f98e413410d527c7e8d502e Reviewed-on: https://gerrit.libreoffice.org/c/core/+/97510 Tested-by: Jenkins Reviewed-by: Andrea Gelmini <andrea.gelmini@gelma.net>
139 lines
3.6 KiB
C++
139 lines
3.6 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_BITMAPPALETTE_HXX
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#define INCLUDED_VCL_BITMAPPALETTE_HXX
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#include <vcl/dllapi.h>
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#include <vcl/BitmapColor.hxx>
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#include <vcl/checksum.hxx>
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#include <vector>
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class VCL_DLLPUBLIC BitmapPalette
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{
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friend class SalBitmap;
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friend class BitmapAccess;
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private:
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std::vector<BitmapColor> maBitmapColor;
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public:
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SAL_DLLPRIVATE const BitmapColor* ImplGetColorBuffer() const
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{
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return maBitmapColor.data();
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}
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SAL_DLLPRIVATE BitmapColor* ImplGetColorBuffer()
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{
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return maBitmapColor.data();
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}
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BitmapChecksum GetChecksum() const
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{
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return vcl_get_checksum(0, maBitmapColor.data(), maBitmapColor.size() * sizeof(BitmapColor));
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}
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public:
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BitmapPalette()
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{
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}
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BitmapPalette(sal_uInt16 nCount)
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: maBitmapColor(nCount)
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{
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}
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bool operator==( const BitmapPalette& rBitmapPalette ) const
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{
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return maBitmapColor == rBitmapPalette.maBitmapColor;
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}
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bool operator!=(const BitmapPalette& rBitmapPalette) const
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{
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return !( *this == rBitmapPalette );
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}
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bool operator!() const
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{
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return maBitmapColor.empty();
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}
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sal_uInt16 GetEntryCount() const
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{
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return maBitmapColor.size();
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}
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void SetEntryCount(sal_uInt16 nCount)
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{
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maBitmapColor.resize(nCount);
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}
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const BitmapColor& operator[](sal_uInt16 nIndex) const
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{
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assert(nIndex < maBitmapColor.size() && "Palette index is out of range");
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return maBitmapColor[nIndex];
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}
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BitmapColor& operator[](sal_uInt16 nIndex)
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{
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assert(nIndex < maBitmapColor.size() && "Palette index is out of range");
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return maBitmapColor[nIndex];
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}
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sal_uInt16 GetBestIndex(const BitmapColor& rCol) const
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{
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sal_uInt16 nRetIndex = 0;
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if (!maBitmapColor.empty())
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{
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for (size_t j = 0; j < maBitmapColor.size(); ++j)
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{
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if (rCol == maBitmapColor[j])
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{
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return j;
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}
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}
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sal_uInt16 nLastErr = SAL_MAX_UINT16;
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for (size_t i = 0; i < maBitmapColor.size(); ++i)
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{
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const sal_uInt16 nActErr = rCol.GetColorError(maBitmapColor[i]);
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if ( nActErr < nLastErr )
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{
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nLastErr = nActErr;
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nRetIndex = i;
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}
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}
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}
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return nRetIndex;
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}
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/// Returns true if the palette is 8-bit grey palette.
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bool IsGreyPalette8Bit() const;
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/// Returns true if the palette is a grey palette (may not be 8-bit).
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bool IsGreyPaletteAny() const;
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};
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#endif // INCLUDED_VCL_BITMAPPALETTE_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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