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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 VCL_INC_BITMAPSCALECONVOLUTIONFILTER_HXX
#define VCL_INC_BITMAPSCALECONVOLUTIONFILTER_HXX
#include <vcl/BitmapFilter.hxx>
#include "ResampleKernel.hxx"
namespace vcl
{
class VCL_DLLPUBLIC BitmapScaleConvolutionFilter : public BitmapFilter
{
protected:
BitmapScaleConvolutionFilter(const double& rScaleX, const double& rScaleY, std::unique_ptr<Kernel> pKernel)
: mxKernel(std::move(pKernel))
, mrScaleX(rScaleX)
, mrScaleY(rScaleY)
{
}
virtual BitmapEx execute(BitmapEx const& rBitmap) const override;
private:
std::unique_ptr<Kernel> mxKernel;
double const mrScaleX;
double const mrScaleY;
};
class VCL_DLLPUBLIC BitmapScaleBilinearFilter : public BitmapScaleConvolutionFilter
{
public:
BitmapScaleBilinearFilter(const double& rScaleX, const double& rScaleY)
: BitmapScaleConvolutionFilter(rScaleX, rScaleY, std::make_unique<BilinearKernel>())
{
}
};
class VCL_DLLPUBLIC BitmapScaleBicubicFilter : public BitmapScaleConvolutionFilter
{
public:
BitmapScaleBicubicFilter(const double& rScaleX, const double& rScaleY)
: BitmapScaleConvolutionFilter(rScaleX, rScaleY, std::make_unique<BicubicKernel>())
{
}
};
class VCL_DLLPUBLIC BitmapScaleLanczos3Filter : public BitmapScaleConvolutionFilter
{
public:
BitmapScaleLanczos3Filter(const double& rScaleX, const double& rScaleY)
: BitmapScaleConvolutionFilter(rScaleX, rScaleY, std::make_unique<Lanczos3Kernel>())
{
}
};
}
#endif // VCL_INC_BITMAPSCALECONVOLUTIONFILTER_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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