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
|
/* -*- 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 <sal/types.h>
#include <basegfx/basegfxdllapi.h>
#include <basegfx/tuple/Tuple2D.hxx>
namespace basegfx
{
class B2ITuple;
/** Base class for all Points/Vectors with two double values
This class provides all methods common to Point
and Vector classes which are derived from here.
@derive Use this class to implement Points or Vectors
which are based on two double values
*/
class SAL_WARN_UNUSED B2DTuple : public Tuple2D<double>
{
public:
/** Create a 2D Tuple
The tuple is initialized to (0.0, 0.0)
*/
B2DTuple()
: Tuple2D(0.0, 0.0)
{}
/** Create a 2D Tuple
@param fX
This parameter is used to initialize the X-coordinate
of the 2D Tuple.
@param fY
This parameter is used to initialize the Y-coordinate
of the 2D Tuple.
*/
B2DTuple(double fX, double fY)
: Tuple2D(fX, fY)
{}
B2DTuple(Tuple2D<double> const& rTuple)
: Tuple2D(rTuple)
{}
/** Create a copy of a 2D integer Tuple
@param rTup
The 2D Tuple which will be copied.
*/
BASEGFX_DLLPUBLIC explicit B2DTuple(const B2ITuple& rTup);
// operators
B2DTuple operator-(void) const
{
return B2DTuple(-mnX, -mnY);
}
BASEGFX_DLLPUBLIC static const B2DTuple& getEmptyTuple();
};
// external operators
inline B2DTuple absolute(const B2DTuple& rTup)
{
B2DTuple aAbs(
fabs(rTup.getX()),
fabs(rTup.getY()));
return aAbs;
}
inline B2DTuple interpolate(const B2DTuple& rOld1, const B2DTuple& rOld2, double t)
{
if(rOld1 == rOld2)
{
return rOld1;
}
else if(0.0 >= t)
{
return rOld1;
}
else if(1.0 <= t)
{
return rOld2;
}
else
{
return B2DTuple(
((rOld2.getX() - rOld1.getX()) * t) + rOld1.getX(),
((rOld2.getY() - rOld1.getY()) * t) + rOld1.getY());
}
}
inline B2DTuple average(const B2DTuple& rOld1, const B2DTuple& rOld2)
{
return B2DTuple(
rtl_math_approxEqual(rOld1.getX(), rOld2.getX()) ? rOld1.getX() : (rOld1.getX() + rOld2.getX()) * 0.5,
rtl_math_approxEqual(rOld1.getY(), rOld2.getY()) ? rOld1.getY() : (rOld1.getY() + rOld2.getY()) * 0.5);
}
inline B2DTuple operator*(const B2DTuple& rTup, double t)
{
B2DTuple aNew(rTup);
aNew *= t;
return aNew;
}
inline B2DTuple operator*(double t, const B2DTuple& rTup)
{
B2DTuple aNew(rTup);
aNew *= t;
return aNew;
}
inline B2DTuple operator/(const B2DTuple& rTup, double t)
{
B2DTuple aNew(rTup);
aNew /= t;
return aNew;
}
/** Round double to nearest integer for 2D tuple
@return the nearest integer for this tuple
*/
BASEGFX_DLLPUBLIC B2ITuple fround(const B2DTuple& rTup);
} // end of namespace basegfx
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
