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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_BITMAPINFOACCESS_HXX
#define INCLUDED_VCL_BITMAPINFOACCESS_HXX
#include <vcl/dllapi.h>
#include <vcl/bitmap.hxx>
#include <vcl/Scanline.hxx>
#include <vcl/BitmapBuffer.hxx>
#include <vcl/BitmapColor.hxx>
#include <vcl/BitmapAccessMode.hxx>
bool Bitmap32IsPreMultipled();
typedef BitmapColor (*FncGetPixel)(ConstScanline pScanline, tools::Long nX, const ColorMask& rMask);
typedef void (*FncSetPixel)(Scanline pScanline, tools::Long nX, const BitmapColor& rBitmapColor,
const ColorMask& rMask);
class VCL_DLLPUBLIC BitmapInfoAccess
{
friend class BitmapReadAccess;
public:
BitmapInfoAccess(Bitmap& rBitmap, BitmapAccessMode nMode = BitmapAccessMode::Info);
virtual ~BitmapInfoAccess();
bool operator!() const { return mpBuffer == nullptr; }
tools::Long Width() const { return mpBuffer ? mpBuffer->mnWidth : 0L; }
tools::Long Height() const { return mpBuffer ? mpBuffer->mnHeight : 0L; }
bool IsTopDown() const
{
assert(mpBuffer && "Access is not valid!");
return mpBuffer && (mpBuffer->mnFormat & ScanlineFormat::TopDown);
}
bool IsBottomUp() const { return !IsTopDown(); }
ScanlineFormat GetScanlineFormat() const
{
assert(mpBuffer && "Access is not valid!");
return mpBuffer ? RemoveScanline(mpBuffer->mnFormat) : ScanlineFormat::NONE;
}
sal_uInt32 GetScanlineSize() const
{
assert(mpBuffer && "Access is not valid!");
return mpBuffer ? mpBuffer->mnScanlineSize : 0;
}
sal_uInt16 GetBitCount() const
{
assert(mpBuffer && "Access is not valid!");
return mpBuffer ? mpBuffer->mnBitCount : 0;
}
BitmapColor GetBestMatchingColor(const BitmapColor& rBitmapColor) const
{
if (HasPalette())
return BitmapColor(static_cast<sal_uInt8>(GetBestPaletteIndex(rBitmapColor)));
else
return rBitmapColor;
}
bool HasPalette() const
{
const BitmapBuffer* pBuffer = mpBuffer;
assert(pBuffer && "Access is not valid!");
return pBuffer && !!pBuffer->maPalette;
}
const BitmapPalette& GetPalette() const
{
const BitmapBuffer* pBuffer = mpBuffer;
assert(pBuffer && "Access is not valid!");
return pBuffer->maPalette;
}
sal_uInt16 GetPaletteEntryCount() const
{
const BitmapBuffer* pBuffer = mpBuffer;
assert(HasPalette() && "Bitmap has no palette!");
return HasPalette() ? pBuffer->maPalette.GetEntryCount() : 0;
}
const BitmapColor& GetPaletteColor(sal_uInt16 nColor) const
{
const BitmapBuffer* pBuffer = mpBuffer;
assert(pBuffer && "Access is not valid!");
assert(HasPalette() && "Bitmap has no palette!");
return pBuffer->maPalette[nColor];
}
sal_uInt16 GetBestPaletteIndex(const BitmapColor& rBitmapColor) const;
const ColorMask& GetColorMask() const
{
const BitmapBuffer* pBuffer = mpBuffer;
assert(pBuffer && "Access is not valid!");
return pBuffer->maColorMask;
}
private:
BitmapInfoAccess(const BitmapInfoAccess&) = delete;
BitmapInfoAccess& operator=(const BitmapInfoAccess&) = delete;
protected:
Bitmap maBitmap;
BitmapBuffer* mpBuffer;
ColorMask maColorMask;
BitmapAccessMode mnAccessMode;
};
#endif // INCLUDED_VCL_BITMAPINFOACCESS_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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