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authorKarl Berry <karl@freefriends.org>2017-01-31 18:37:40 +0000
committerKarl Berry <karl@freefriends.org>2017-01-31 18:37:40 +0000
commit4c245316c293169ee655c8e2f922b4bee454f9bc (patch)
tree2d3b72165f3e7e1298df8dad8b52f119a42228dc /Build/source/texk/dvisvgm/dvisvgm-src/src/Matrix.hpp
parent54a2f67f996dceca3c89276dea798f746b3cacaf (diff)
import original dvisvgm-2.1
git-svn-id: svn://tug.org/texlive/trunk@43102 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-src/src/Matrix.hpp')
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1 files changed, 108 insertions, 0 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/src/Matrix.hpp b/Build/source/texk/dvisvgm/dvisvgm-src/src/Matrix.hpp
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+++ b/Build/source/texk/dvisvgm/dvisvgm-src/src/Matrix.hpp
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+/*************************************************************************
+** Matrix.hpp **
+** **
+** This file is part of dvisvgm -- a fast DVI to SVG converter **
+** Copyright (C) 2005-2017 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 MATRIX_HPP
+#define MATRIX_HPP
+
+#include <istream>
+#include <string>
+#include <vector>
+#include "MessageException.hpp"
+#include "Pair.hpp"
+
+
+struct ParserException : public MessageException
+{
+ ParserException (const std::string &msg) : MessageException(msg) {}
+};
+
+class Calculator;
+
+class Matrix
+{
+ friend double det (const Matrix &m);
+ friend double det (const Matrix &m, int row, int col);
+
+ public:
+ Matrix (const std::string &cmds, Calculator &calc);
+ Matrix (double d=0);
+ Matrix (double v[], unsigned size=9);
+ Matrix (const std::vector<double> &v, int start=0);
+ Matrix& set (double d);
+ Matrix& set (double v[], unsigned size);
+ Matrix& set (const std::vector<double> &v, int start=0);
+ Matrix& set (const std::string &cmds, Calculator &calc);
+ double get (int row, int col) const {return _values[row][col];}
+ Matrix& transpose ();
+ Matrix& invert ();
+ Matrix& parse (std::istream &is, Calculator &c);
+ Matrix& parse (const std::string &cmds, Calculator &c);
+ Matrix& lmultiply (const Matrix &tm);
+ Matrix& rmultiply (const Matrix &tm);
+ Matrix& translate (double tx, double ty);
+ Matrix& scale (double sx, double sy);
+ Matrix& rotate (double deg);
+ Matrix& xskewByAngle (double deg);
+ Matrix& yskewByAngle (double deg);
+ Matrix& xskewByRatio (double xyratio);
+ Matrix& yskewByRatio (double xyratio);
+ Matrix& flip (bool h, double a);
+ Matrix& operator *= (double c);
+ DPair operator * (const DPair &p) const;
+ bool operator == (const Matrix &m) const;
+ bool operator != (const Matrix &m) const;
+ bool isIdentity() const;
+ bool isTranslation (double &tx, double &ty) const;
+ std::string getSVG () const;
+ std::ostream& write (std::ostream &os) const;
+
+ private:
+ double _values[3][3]; // row x col
+};
+
+
+struct TranslationMatrix : public Matrix
+{
+ TranslationMatrix (double tx, double ty);
+};
+
+
+struct ScalingMatrix : public Matrix
+{
+ ScalingMatrix (double sx, double sy);
+};
+
+
+struct RotationMatrix : public Matrix
+{
+ RotationMatrix (double deg);
+};
+
+
+inline std::ostream& operator << (std::ostream &os, const Matrix &m) {
+ return m.write(os);
+}
+
+
+double det (const Matrix &m);
+double det (const Matrix &m, int row, int col);
+
+
+#endif