summaryrefslogtreecommitdiff
path: root/Build/source/texk/dvisvgm/dvisvgm-1.10/src/RangeMap.h
diff options
context:
space:
mode:
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.h87
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