1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#pragma once
#include <compare>
#include <ostream>
#include <tuple>
#include <basegfx/tuple/b2dtuple.hxx>
#include <basegfx/point/b2ipoint.hxx>
#include <basegfx/basegfxdllapi.h>
#include <basegfx/tuple/Size2D.hxx>
namespace basegfx
{
class B2DHomMatrix;
/** Base Point class with two double values
This class derives all operators and common handling for
a 2D data class from B2DTuple. All necessary extensions
which are special for points will be added here.
@see B2DTuple
*/
class SAL_WARN_UNUSED B2DPoint : public ::basegfx::B2DTuple
{
public:
/** Create a 2D Point
The point is initialized to (0.0, 0.0)
*/
B2DPoint()
{}
/** Create a 2D Point
@param fX
This parameter is used to initialize the X-coordinate
of the 2D Point.
@param fY
This parameter is used to initialize the Y-coordinate
of the 2D Point.
*/
B2DPoint(double fX, double fY)
: B2DTuple(fX, fY)
{}
/** Create a copy of a 2D Point
@param rPoint
The 2D Point which will be copied.
*/
explicit B2DPoint(const ::basegfx::B2IPoint& rPoint)
: B2DTuple(rPoint)
{}
/** constructor with tuple to allow copy-constructing
from B2DTuple-based classes
*/
B2DPoint(Tuple2D<double> const& rTuple)
: B2DTuple(rTuple)
{}
/** create a point from a size object */
explicit B2DPoint(Size2D<double> const& rSize)
: B2DTuple(rSize.getWidth(), rSize.getHeight())
{}
/** *=operator to allow usage from B2DPoint, too
*/
B2DPoint& operator*=( const B2DPoint& rPnt )
{
mnX *= rPnt.mnX;
mnY *= rPnt.mnY;
return *this;
}
/** *=operator to allow usage from B2DPoint, too
*/
B2DPoint& operator*=(double t)
{
mnX *= t;
mnY *= t;
return *this;
}
/** assignment operator to allow assigning the results
of B2DTuple calculations
*/
BASEGFX_DLLPUBLIC B2DPoint& operator=(Tuple2D<double>& rPoint)
{
mnX = rPoint.getX();
mnY = rPoint.getY();
return *this;
}
/** Transform point by given transformation matrix.
The translational components of the matrix are, in
contrast to B2DVector, applied.
*/
BASEGFX_DLLPUBLIC B2DPoint& operator*=( const ::basegfx::B2DHomMatrix& rMat );
static const B2DPoint& getEmptyPoint()
{
return static_cast<const B2DPoint&>( ::basegfx::B2DTuple::getEmptyTuple() );
}
friend auto operator <=>(B2DPoint const & a, B2DPoint const & b)
{
// Avoid compilation failure with Android NDK 23.2, where std::tuple operator <=> isn't
// yet implemented (and where __cpp_lib_three_way_comparison happens to not be defined
// in <compare>, so discriminate on that):
#if defined __cpp_lib_three_way_comparison
return std::tie(a.mnX, a.mnY) <=> std::tie(b.mnX, b.mnY);
#else
auto const comp = a.mnX <=> b.mnX;
return comp == 0 ? a.mnY <=> b.mnY : comp;
#endif
}
};
// external operators
/** Transform B2DPoint by given transformation matrix.
Since this is a Point, translational components of the
matrix are used.
*/
BASEGFX_DLLPUBLIC B2DPoint operator*( const B2DHomMatrix& rMat, const B2DPoint& rPoint );
template< typename charT, typename traits >
inline std::basic_ostream<charT, traits> & operator <<(
std::basic_ostream<charT, traits> & stream, const B2DPoint& point )
{
return stream << "(" << point.getX() << "," << point.getY() << ")";
}
} // end of namespace basegfx
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
