BitmapPalette.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#pragma once

#include <vcl/dllapi.h>
#include <vcl/BitmapColor.hxx>
#include <vcl/checksum.hxx>
#include <o3tl/cow_wrapper.hxx>

class ImplBitmapPalette;

class VCL_DLLPUBLIC BitmapPalette
{
    friend class SalBitmap;
    friend class BitmapAccess;

public:

    SAL_DLLPRIVATE const BitmapColor* ImplGetColorBuffer() const;

    SAL_DLLPRIVATE BitmapColor* ImplGetColorBuffer();

    BitmapChecksum GetChecksum() const;

    BitmapPalette();
    BitmapPalette( const BitmapPalette& );
    BitmapPalette( BitmapPalette&& ) noexcept;
    BitmapPalette(std::initializer_list<BitmapColor> aBitmapColor);
    explicit BitmapPalette(sal_uInt16 nCount);
    ~BitmapPalette();

    BitmapPalette& operator=( const BitmapPalette& );
    BitmapPalette& operator=( BitmapPalette&& ) noexcept;

    bool operator==( const BitmapPalette& rBitmapPalette ) const;
    bool operator!=(const BitmapPalette& rBitmapPalette) const
    {
        return !( *this == rBitmapPalette );
    }
    bool operator!() const;

    sal_uInt16 GetEntryCount() const;
    void SetEntryCount(sal_uInt16 nCount);

    const BitmapColor& operator[](sal_uInt16 nIndex) const;
    BitmapColor& operator[](sal_uInt16 nIndex);

    sal_uInt16 GetBestIndex(const BitmapColor& rCol) const;

    bool IsGreyPalette8Bit() const;
    bool IsGreyPaletteAny() const;

    typedef o3tl::cow_wrapper< ImplBitmapPalette > ImplType;

private:
    ImplType mpImpl;
};

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