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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
commit | cca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch) | |
tree | 146f39ded1c938019e1ed42d30923c2ac9e86789 /src/3rdparty/libdepixelize/priv/iterator.h | |
parent | Initial commit. (diff) | |
download | inkscape-upstream.tar.xz inkscape-upstream.zip |
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/3rdparty/libdepixelize/priv/iterator.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/3rdparty/libdepixelize/priv/iterator.h b/src/3rdparty/libdepixelize/priv/iterator.h new file mode 100644 index 0000000..7caa9bf --- /dev/null +++ b/src/3rdparty/libdepixelize/priv/iterator.h @@ -0,0 +1,123 @@ +/* This file is part of the libdepixelize project + Copyright (C) 2013 VinÃcius dos Santos Oliveira <vini.ipsmaker@gmail.com> + + GNU Lesser General Public License Usage + This library is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by the + Free Software Foundation; either version 2.1 of the License, or (at your + option) any later version. + You should have received a copy of the GNU Lesser General Public License + along with this library. If not, see <http://www.gnu.org/licenses/>. + + GNU General Public License Usage + Alternatively, this library may be used under the terms of the GNU General + Public License as published by the Free Software Foundation, either version + 2 of the License, or (at your option) any later version. + You should have received a copy of the GNU General Public License along with + this library. If not, see <http://www.gnu.org/licenses/>. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. +*/ + +#ifndef LIBDEPIXELIZE_TRACER_ITERATOR_H +#define LIBDEPIXELIZE_TRACER_ITERATOR_H + +#include <vector> +#include <iterator> + +namespace Tracer { + +template<typename T> +const T *to_ptr(typename std::vector<T>::const_iterator it) +{ + return &*it; +} + +template<typename T> +T *to_ptr(typename std::vector<T>::iterator it) +{ + return &*it; +} + +template<typename T> +typename std::vector<T>::const_iterator to_iterator(T const *ptr, + typename std::vector<T> + ::const_iterator begin) +{ + typedef typename std::vector<T>::const_iterator It; + typedef typename std::iterator_traits<It>::difference_type difference_type; + difference_type idx = ptr - to_ptr<T>(begin); + return begin + idx; +} + +template<typename T> +typename std::vector<T>::iterator to_iterator(T *ptr, + typename std::vector<T>::iterator + begin) +{ + typedef typename std::vector<T>::iterator It; + typedef typename std::iterator_traits<It>::difference_type difference_type; + difference_type idx = ptr - to_ptr<T>(begin); + return begin + idx; +} + +template<typename T> +class ToIter +{ +public: + typedef typename std::vector<T>::const_iterator const_iterator; + typedef typename std::vector<T>::iterator iterator; + + ToIter(const_iterator begin) : + begin(begin) + {} + + const_iterator operator()(T const *ptr) const + { + return to_iterator<T>(ptr, begin); + } + + iterator operator()(T *ptr) const + { + return to_iterator<T>(ptr, begin); + } + +private: + typename std::vector<T>::const_iterator begin; +}; + +template<typename T> +class ToPtr +{ +public: + typedef typename std::vector<T>::const_iterator const_iterator; + typedef typename std::vector<T>::iterator iterator; + + const T *operator()(const_iterator it) const + { + return to_ptr<T>(it); + } + + T *operator()(iterator it) const + { + return to_ptr<T>(it); + } +}; + +} // namespace Tracer + +#endif // LIBDEPIXELIZE_TRACER_ITERATOR_H + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : |