summaryrefslogtreecommitdiff
path: root/Build/source/texk/lcdf-typetools/lcdf-typetools-src/liblcdf/transform.cc
diff options
context:
space:
mode:
Diffstat (limited to 'Build/source/texk/lcdf-typetools/lcdf-typetools-src/liblcdf/transform.cc')
-rw-r--r--Build/source/texk/lcdf-typetools/lcdf-typetools-src/liblcdf/transform.cc182
1 files changed, 0 insertions, 182 deletions
diff --git a/Build/source/texk/lcdf-typetools/lcdf-typetools-src/liblcdf/transform.cc b/Build/source/texk/lcdf-typetools/lcdf-typetools-src/liblcdf/transform.cc
deleted file mode 100644
index 8f92dfeba83..00000000000
--- a/Build/source/texk/lcdf-typetools/lcdf-typetools-src/liblcdf/transform.cc
+++ /dev/null
@@ -1,182 +0,0 @@
-// -*- related-file-name: "../include/lcdf/transform.hh" -*-
-
-/* transform.{cc,hh} -- planar affine transformations
- *
- * Copyright (c) 2000-2019 Eddie Kohler
- *
- * 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 2 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.
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-#include <lcdf/transform.hh>
-#include <lcdf/straccum.hh>
-#include <math.h>
-
-Transform::Transform()
-{
- _m[0] = _m[3] = 1;
- _m[1] = _m[2] = _m[4] = _m[5] = 0;
- _null = true;
-}
-
-Transform::Transform(const double m[6])
-{
- _m[0] = m[0];
- _m[1] = m[1];
- _m[2] = m[2];
- _m[3] = m[3];
- _m[4] = m[4];
- _m[5] = m[5];
- check_null(0);
-}
-
-Transform::Transform(double m0, double m1, double m2,
- double m3, double m4, double m5)
-{
- _m[0] = m0;
- _m[1] = m1;
- _m[2] = m2;
- _m[3] = m3;
- _m[4] = m4;
- _m[5] = m5;
- check_null(0);
-}
-
-void
-Transform::check_null(double tolerance)
-{
- _null = (fabs(_m[0] - 1) < tolerance && fabs(_m[1]) < tolerance
- && fabs(_m[2]) < tolerance && fabs(_m[3] - 1) < tolerance
- && fabs(_m[4]) < tolerance && fabs(_m[5]) < tolerance);
-}
-
-
-void
-Transform::scale(double x, double y)
-{
- _m[0] *= x;
- _m[1] *= x;
- _m[2] *= y;
- _m[3] *= y;
-
- if (x != 1 || y != 1)
- _null = false;
-}
-
-void
-Transform::rotate(double r)
-{
- double c = cos(r);
- double s = sin(r);
-
- double a = _m[0], b = _m[2];
- _m[0] = a*c + b*s;
- _m[2] = b*c - a*s;
-
- a = _m[1], b = _m[3];
- _m[1] = a*c + b*s;
- _m[3] = b*c - a*s;
-
- if (r != 0)
- _null = false;
-}
-
-void
-Transform::translate(double x, double y)
-{
- _m[4] += _m[0]*x + _m[2]*y;
- _m[5] += _m[1]*x + _m[3]*y;
-
- if (x != 0 || y != 0)
- _null = false;
-}
-
-void Transform::raw_translate(double x, double y) {
- _m[4] += x;
- _m[5] += y;
-
- if (x != 0 || y != 0)
- _null = false;
-}
-
-void
-Transform::shear(double s)
-{
- *this *= Transform(1, 0, s, 1, 0, 0);
-}
-
-Transform& Transform::operator*=(const Transform& x) {
- if (x.null())
- /* do nothing */;
- else if (null())
- memcpy(_m, x._m, sizeof(_m));
- else {
- double m[6];
- m[0] = _m[0] * x._m[0] + _m[2] * x._m[1];
- m[1] = _m[1] * x._m[0] + _m[3] * x._m[1];
- m[2] = _m[0] * x._m[2] + _m[2] * x._m[3];
- m[3] = _m[1] * x._m[2] + _m[3] * x._m[3];
- m[4] = _m[0] * x._m[4] + _m[2] * x._m[5] + _m[4];
- m[5] = _m[1] * x._m[4] + _m[3] * x._m[5] + _m[5];
- memcpy(_m, m, sizeof(_m));
- }
- return *this;
-}
-
-
-void
-Transform::real_apply_to(Point &p) const
-{
- double x = p.x;
- p.x = x*_m[0] + p.y*_m[2] + _m[4];
- p.y = x*_m[1] + p.y*_m[3] + _m[5];
-}
-
-Point
-Transform::real_apply(const Point &p) const
-{
- return Point(p.x*_m[0] + p.y*_m[2] + _m[4],
- p.x*_m[1] + p.y*_m[3] + _m[5]);
-}
-
-Bezier &
-operator*=(Bezier &b, const Transform &t)
-{
- if (!t.null()) {
- b.mpoint(0) *= t;
- b.mpoint(1) *= t;
- b.mpoint(2) *= t;
- b.mpoint(3) *= t;
- }
- return b;
-}
-
-Bezier
-operator*(const Bezier &b, const Transform &t)
-{
- return (t.null()
- ? b
- : Bezier(b.point(0) * t, b.point(1) * t, b.point(2) * t, b.point(3) * t));
-}
-
-String
-Transform::unparse() const
-{
- StringAccum sa;
- sa << '[';
- for (int i = 0; i < 6; i++) {
- if (i)
- sa << ',' << ' ';
- sa << _m[i];
- }
- sa << ']';
- return sa.take_string();
-}