1/*
2 * SPDX-FileCopyrightText: 2007-2009 Petri Damstén <damu@iki.fi>
3 * SPDX-FileCopyrightText: 2014 John Layt <jlayt@kde.org>
4 *
5 * SPDX-License-Identifier: LGPL-2.0-or-later
6 */
7
8#include "value.h"
9#include "converter.h"
10
11#include <QVariant>
12#include <qmath.h>
13
14namespace KUnitConversion
15{
16class ValuePrivate : public QSharedData
17{
18public:
19 ValuePrivate()
20 : m_number(0)
21 {
22 }
23
24 ValuePrivate(qreal number, UnitId unitId = InvalidUnit)
25 : m_number(number)
26 {
27 m_unit = m_converter.unit(unitId);
28 }
29
30 ValuePrivate(qreal number, const Unit &unit)
31 : m_number(number)
32 , m_unit(unit)
33 {
34 }
35
36 ValuePrivate(qreal number, const QString &unitString)
37 : m_number(number)
38 {
39 m_unit = m_converter.unit(unitString);
40 }
41
42 ValuePrivate(const ValuePrivate &other)
43 : QSharedData(other)
44 , m_number(other.m_number)
45 , m_unit(other.m_unit)
46 {
47 }
48
49 virtual ~ValuePrivate()
50 {
51 }
52
53 ValuePrivate &operator=(const ValuePrivate &other)
54 {
55 m_number = other.m_number;
56 m_unit = other.m_unit;
57 return *this;
58 }
59
60 ValuePrivate *clone()
61 {
62 return new ValuePrivate(*this);
63 }
64
65 bool operator==(const ValuePrivate &other) const
66 {
67 return (m_number == other.m_number && m_unit == other.m_unit);
68 }
69
70 bool operator!=(const ValuePrivate &other) const
71 {
72 return !(*this == other);
73 }
74
75 qreal m_number;
76 Unit m_unit;
77 Converter m_converter;
78};
79
80Value::Value()
81 : d(nullptr)
82{
83}
84
85Value::Value(const Value &other)
86 : d(other.d)
87{
88}
89
90Value::Value(qreal number, const Unit &unit)
91 : d(new ValuePrivate(number, unit))
92{
93}
94
95Value::Value(qreal number, const QString &unitString)
96 : d(new ValuePrivate(number, unitString))
97{
98}
99
100Value::Value(qreal number, UnitId unitId)
101 : d(new ValuePrivate(number, unitId))
102{
103}
104
105Value::Value(const QVariant &number, const QString &unitString)
106 : d(new ValuePrivate(number.toReal(), unitString))
107{
108}
109
110Value::~Value()
111{
112}
113
114Value &Value::operator=(const Value &other)
115{
116 d = other.d;
117 return *this;
118}
119
120bool Value::operator==(const Value &other) const
121{
122 if (d && other.d) {
123 return (*d == *other.d);
124 } else {
125 return (d == other.d);
126 }
127}
128
129bool Value::operator!=(const Value &other) const
130{
131 if (d && other.d) {
132 return (*d != *other.d);
133 } else {
134 return (d != other.d);
135 }
136}
137
138bool Value::isNull() const
139{
140 return !d;
141}
142
143bool Value::isValid() const
144{
145 return (d && d->m_unit.isValid() && !qIsNaN(d->m_number));
146}
147
148qreal Value::number() const
149{
150 if (d) {
151 return d->m_number;
152 }
153 return 0;
154}
155
156Unit Value::unit() const
157{
158 if (d) {
159 return d->m_unit;
160 }
161 return Unit();
162}
163
164QString Value::toString(int fieldWidth, char format, int precision, const QChar &fillChar) const
165{
166 if (isValid()) {
167 return d->m_unit.toString(d->m_number, fieldWidth, format, precision, fillChar);
168 }
169 return QString();
170}
171
172QString Value::toSymbolString(int fieldWidth, char format, int precision, const QChar &fillChar) const
173{
174 if (isValid()) {
175 return d->m_unit.toSymbolString(d->m_number, fieldWidth, format, precision, fillChar);
176 }
177 return QString();
178}
179
180Value &Value::round(uint decimals)
181{
182 if (!isValid()) {
183 return *this;
184 }
185
186 uint div = qPow(10, decimals);
187 qreal add = 0.5 / (qreal)div;
188
189 d->m_number = (int)((d->m_number + add) * div) / (qreal)div;
190 return *this;
191}
192
193Value Value::convertTo(const Unit &unit) const
194{
195 if (d) {
196 return d->m_converter.convert(*this, unit);
197 }
198 return Value();
199}
200
201Value Value::convertTo(UnitId unitId) const
202{
203 if (d) {
204 return d->m_converter.convert(*this, unitId);
205 }
206 return Value();
207}
208
209Value Value::convertTo(const QString &unitString) const
210{
211 if (d) {
212 return d->m_converter.convert(*this, unitString);
213 }
214 return Value();
215}
216
217}
218

source code of kunitconversion/src/value.cpp