diff options
Diffstat (limited to 'include/vcl/BitmapAlphaClampFilter.hxx')
-rw-r--r-- | include/vcl/BitmapAlphaClampFilter.hxx | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/vcl/BitmapAlphaClampFilter.hxx b/include/vcl/BitmapAlphaClampFilter.hxx new file mode 100644 index 000000000..6926c3274 --- /dev/null +++ b/include/vcl/BitmapAlphaClampFilter.hxx @@ -0,0 +1,34 @@ +/* -*- 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_INCLUDE_VCL_BITMAPALPHACLAMPFILTER_HXX +#define INCLUDED_INCLUDE_VCL_BITMAPALPHACLAMPFILTER_HXX + +#include <vcl/BitmapFilter.hxx> + +/** If the alpha is beyond a certain threshold, make it fully transparent + */ +class VCL_DLLPUBLIC BitmapAlphaClampFilter final : public BitmapFilter +{ +public: + BitmapAlphaClampFilter(sal_uInt8 cThreshold) + : mcThreshold(cThreshold) + { + } + + virtual BitmapEx execute(BitmapEx const& rBitmapEx) const override; + +private: + sal_uInt8 mcThreshold; +}; + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |