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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/.
*
*/
#ifndef INCLUDED_VCL_BITMAPBASICMORPHOLOGYFILTER_HXX
#define INCLUDED_VCL_BITMAPBASICMORPHOLOGYFILTER_HXX
#include <vcl/bitmap.hxx>
#include <vcl/bitmapex.hxx>
#include <vcl/BitmapFilter.hxx>
enum class BasicMorphologyOp
{
erode,
dilate
};
/* Black is foreground, white is background */
class VCL_DLLPUBLIC BitmapBasicMorphologyFilter : public BitmapFilter
{
public:
BitmapBasicMorphologyFilter(BasicMorphologyOp op, sal_Int32 nRadius);
BitmapBasicMorphologyFilter(BasicMorphologyOp op, sal_Int32 nRadius, sal_uInt8 nValueOutside);
virtual ~BitmapBasicMorphologyFilter();
virtual BitmapEx execute(BitmapEx const& rBitmap) const override;
private:
Bitmap filter(Bitmap const& rBitmap) const;
BasicMorphologyOp m_eOp;
sal_Int32 m_nRadius;
sal_uInt8 m_nValueOutside = 0;
bool m_bUseValueOutside = false;
};
class BitmapErodeFilter final : public BitmapBasicMorphologyFilter
{
public:
BitmapErodeFilter(sal_Int32 nRadius)
: BitmapBasicMorphologyFilter(BasicMorphologyOp::erode, nRadius)
{
}
BitmapErodeFilter(sal_Int32 nRadius, sal_uInt8 nValueOutside)
: BitmapBasicMorphologyFilter(BasicMorphologyOp::erode, nRadius, nValueOutside)
{
}
};
class BitmapDilateFilter final : public BitmapBasicMorphologyFilter
{
public:
BitmapDilateFilter(sal_Int32 nRadius)
: BitmapBasicMorphologyFilter(BasicMorphologyOp::dilate, nRadius)
{
}
BitmapDilateFilter(sal_Int32 nRadius, sal_uInt8 nValueOutside)
: BitmapBasicMorphologyFilter(BasicMorphologyOp::dilate, nRadius, nValueOutside)
{
}
};
#endif // INCLUDED_VCL_BITMAPBASICMORPHOLOGYFILTER_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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