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Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-1.10/src/RangeMap.h')
-rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-1.10/src/RangeMap.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-1.10/src/RangeMap.h b/Build/source/texk/dvisvgm/dvisvgm-1.10/src/RangeMap.h new file mode 100644 index 00000000000..a1d2f139070 --- /dev/null +++ b/Build/source/texk/dvisvgm/dvisvgm-1.10/src/RangeMap.h @@ -0,0 +1,87 @@ +/************************************************************************* +** RangeMap.h ** +** ** +** This file is part of dvisvgm -- the DVI to SVG converter ** +** Copyright (C) 2005-2015 Martin Gieseking <martin.gieseking@uos.de> ** +** ** +** This program is free software; you can redistribute it and/or ** +** modify it under the terms of the GNU General Public License as ** +** published by the Free Software Foundation; either version 3 of ** +** the License, or (at your option) any later version. ** +** ** +** This program 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 General Public License for more details. ** +** ** +** You should have received a copy of the GNU General Public License ** +** along with this program; if not, see <http://www.gnu.org/licenses/>. ** +*************************************************************************/ + +#ifndef DVISVGM_RANGEMAP_H +#define DVISVGM_RANGEMAP_H + +#include <algorithm> +#include <ostream> +#include <vector> +#include "types.h" + + +class RangeMap { + class Range + { + friend class RangeMap; + + public: + Range () : _min(0), _max(0), _minval(0) {} + + Range (UInt32 min, UInt32 max, UInt32 minval) : _min(min), _max(max), _minval(minval) { + if (_min > _max) + std::swap(_min, _max); + } + + UInt32 min () const {return _min;} + UInt32 max () const {return _max;} + UInt32 minval () const {return _minval;} + UInt32 maxval () const {return valueAt(_max);} + UInt32 valueAt (UInt32 c) const {return c-_min+_minval;} + bool operator < (const Range &r) const {return _min < r._min;} + std::ostream& write (std::ostream &os) const; + + protected: + void min (UInt32 m) {_min = m;} + void max (UInt32 m) {_max = m;} + void setMinAndAdaptValue (UInt32 c) {_minval = valueAt(c); _min = c;} + bool join (const Range &r); + + private: + UInt32 _min, _max; + UInt32 _minval; + }; + + typedef std::vector<Range> Ranges; + + public: + void addRange (UInt32 first, UInt32 last, UInt32 cid); + bool valueExists (UInt32 c) const {return lookup(c) >= 0;} + UInt32 valueAt (UInt32 c) const; + size_t size () const {return _ranges.size();} + bool empty () const {return _ranges.empty();} + void clear () {_ranges.clear();} + std::ostream& write (std::ostream &os) const; + + protected: + void adaptNeighbors (Ranges::iterator it); + int lookup (UInt32 c) const; + const Range& rangeAt (size_t n) const {return _ranges[n];} + + private: + Ranges _ranges; +}; + + +inline std::ostream& operator << (std::ostream& os, const RangeMap &rangemap) { + return rangemap.write(os); +} + +#endif |