1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /*
3  * This file is part of the libcdr project.
4  *
5  * This Source Code Form is subject to the terms of the Mozilla Public
6  * License, v. 2.0. If a copy of the MPL was not distributed with this
7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8  */
9 
10 #ifndef __CDRTRANSFORMS_H__
11 #define __CDRTRANSFORMS_H__
12 
13 #include <vector>
14 #include <librevenge/librevenge.h>
15 
16 namespace libcdr
17 {
18 
19 class CDRTransform
20 {
21 public:
22   CDRTransform();
23   CDRTransform(double v0, double v1, double x0, double v3, double v4, double y0);
24   CDRTransform(const CDRTransform &trafo) = default;
25 
26   CDRTransform &operator=(const CDRTransform &trafo) = default;
27 
28   void applyToPoint(double &x, double &y) const;
29   void applyToArc(double &rx, double &ry, double &rotation, bool &sweep, double &endx, double &endy) const;
30   double getScaleX() const;
31   double getScaleY() const;
32   double getTranslateX() const;
33   double getTranslateY() const;
34   bool getFlipX() const;
35   bool getFlipY() const;
36 
37   librevenge::RVNGString toString() const;
38 
39 private:
40   double _getScaleX() const;
41   double _getScaleY() const;
42   double m_v0;
43   double m_v1;
44   double m_x0;
45   double m_v3;
46   double m_v4;
47   double m_y0;
48 };
49 
50 class CDRTransforms
51 {
52 public:
53   CDRTransforms();
54   CDRTransforms(const CDRTransforms &trafos) = default;
55   ~CDRTransforms();
56 
57   CDRTransforms &operator=(const CDRTransforms &trafo) = default;
58 
59   void append(double v0, double v1, double x0, double v3, double v4, double y0);
60   void append(const CDRTransform &trafo);
61   void clear();
62   bool empty() const;
63 
64   void applyToPoint(double &x, double &y) const;
65   void applyToArc(double &rx, double &ry, double &rotation, bool &sweep, double &x, double &y) const;
66   double getScaleX() const;
67   double getScaleY() const;
68   double getTranslateX() const;
69   double getTranslateY() const;
70   bool getFlipX() const;
71   bool getFlipY() const;
72 
73 private:
74   double _getScaleX() const;
75   double _getScaleY() const;
76   std::vector<CDRTransform> m_trafos;
77 };
78 
79 } // namespace libcdr
80 
81 #endif /* __CDRTRANSFORMS_H__ */
82 /* vim:set shiftwidth=2 softtabstop=2 expandtab: */
83