1 | /* |
2 | * Copyright (C) 2008-2009 Petri Damstén <damu@iki.fi> |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU Library General Public License as |
6 | * published by the Free Software Foundation; either version 2, or |
7 | * (at your option) any later version. |
8 | * |
9 | * This program is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | * GNU General Public License for more details |
13 | * |
14 | * You should have received a copy of the GNU Library General Public |
15 | * License along with this program; if not, write to the |
16 | * Free Software Foundation, Inc., |
17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
18 | */ |
19 | |
20 | #include "converter.h" |
21 | |
22 | #include <kglobal.h> |
23 | #include <klocale.h> |
24 | |
25 | #include "unitcategory.h" |
26 | #include "area.h" |
27 | #include "length.h" |
28 | #include "currency.h" |
29 | #include "density.h" |
30 | #include "energy.h" |
31 | #include "fuel_efficiency.h" |
32 | #include "mass.h" |
33 | #include "power.h" |
34 | #include "pressure.h" |
35 | #include "temperature.h" |
36 | #include "timeunit.h" |
37 | #include "unit.h" |
38 | #include "velocity.h" |
39 | #include "volume.h" |
40 | #include "acceleration.h" |
41 | #include "force.h" |
42 | #include "angle.h" |
43 | #include "frequency.h" |
44 | |
45 | namespace KUnitConversion |
46 | { |
47 | |
48 | class Invalid : public UnitCategory |
49 | { |
50 | public: |
51 | Invalid() : UnitCategory(InvalidCategory) |
52 | { |
53 | const QString s; |
54 | const KLocalizedString ls; |
55 | setName(i18n("Invalid" )); |
56 | setDefaultUnit(UP(InvalidUnit, 1.0, s, s, s, ls, ls)); |
57 | setSymbolStringFormat(ki18nc("%1 value, %2 unit symbol (default)" , "%1 %2" )); |
58 | }; |
59 | }; |
60 | |
61 | class ConverterPrivate |
62 | { |
63 | public: |
64 | QMap<int, UnitCategory *> categories; |
65 | ConverterPrivate() |
66 | { |
67 | KGlobal::locale()->insertCatalog("libkunitconversion" ); |
68 | |
69 | categories[InvalidCategory] = new Invalid; |
70 | categories[LengthCategory] = new Length; |
71 | categories[AreaCategory] = new Area(); |
72 | categories[VolumeCategory] = new Volume; |
73 | categories[TemperatureCategory] = new Temperature; |
74 | categories[VelocityCategory] = new Velocity; |
75 | categories[MassCategory] = new Mass; |
76 | categories[PressureCategory] = new Pressure; |
77 | categories[EnergyCategory] = new Energy; |
78 | categories[CurrencyCategory] = new Currency; |
79 | categories[PowerCategory] = new Power; |
80 | categories[TimeCategory] = new Time; |
81 | categories[FuelEfficiencyCategory] = new FuelEfficiency; |
82 | categories[DensityCategory] = new Density; |
83 | categories[AccelerationCategory] = new Acceleration; |
84 | categories[ForceCategory] = new Force; |
85 | categories[AngleCategory] = new Angle; |
86 | categories[FrequencyCategory] = new Frequency; |
87 | }; |
88 | |
89 | ~ConverterPrivate() |
90 | { |
91 | qDeleteAll(categories); |
92 | }; |
93 | }; |
94 | |
95 | K_GLOBAL_STATIC(ConverterPrivate, static_d) |
96 | |
97 | Converter::Converter(QObject* parent) |
98 | : QObject(parent), d(static_cast<ConverterPrivate *>(static_d)) |
99 | { |
100 | } |
101 | |
102 | Converter::~Converter() |
103 | { |
104 | } |
105 | |
106 | Value Converter::convert(const Value& value, const QString& toUnit) const |
107 | { |
108 | if (!value.unit().isNull()) { |
109 | UnitCategory* category = value.unit()->category(); |
110 | if (category) { |
111 | return category->convert(value, toUnit); |
112 | } |
113 | } |
114 | return Value(); |
115 | } |
116 | |
117 | Value Converter::convert(const Value& value, int toUnit) const |
118 | { |
119 | if (!value.unit().isNull()) { |
120 | UnitCategory* category = value.unit()->category(); |
121 | if (category) { |
122 | return category->convert(value, toUnit); |
123 | } |
124 | } |
125 | return Value(); |
126 | } |
127 | |
128 | Value Converter::convert(const Value& value, UnitPtr toUnit) const |
129 | { |
130 | if (!toUnit.isNull() && !value.unit().isNull() && value.unit()->isValid()) { |
131 | UnitCategory* category = value.unit()->category(); |
132 | if (category) { |
133 | return category->convert(value, toUnit); |
134 | } |
135 | } |
136 | return Value(); |
137 | } |
138 | |
139 | UnitCategory* Converter::categoryForUnit(const QString& unit) const |
140 | { |
141 | foreach (UnitCategory* u, categories()) { |
142 | if (u->hasUnit(unit)) { |
143 | return u; |
144 | } |
145 | } |
146 | return d->categories[InvalidCategory]; |
147 | } |
148 | |
149 | UnitPtr Converter::unit(const QString& unitString) const |
150 | { |
151 | foreach (UnitCategory* u, d->categories) { |
152 | UnitPtr unitClass = u->unit(unitString); |
153 | if (unitClass) { |
154 | return unitClass; |
155 | } |
156 | } |
157 | return unit(InvalidUnit); |
158 | } |
159 | |
160 | UnitPtr Converter::unit(int unitId) const |
161 | { |
162 | foreach (UnitCategory* u, d->categories) { |
163 | UnitPtr unitClass = u->unit(unitId); |
164 | if (unitClass) { |
165 | return unitClass; |
166 | } |
167 | } |
168 | return d->categories[InvalidCategory]->defaultUnit(); |
169 | } |
170 | |
171 | UnitCategory* Converter::category(const QString& category) const |
172 | { |
173 | foreach (UnitCategory *u, d->categories) { |
174 | if (u->name() == category) |
175 | return u; |
176 | } |
177 | // not found |
178 | return d->categories[InvalidCategory]; |
179 | } |
180 | |
181 | UnitCategory* Converter::category(int categoryId) const |
182 | { |
183 | if (d->categories.contains(categoryId)) { |
184 | return d->categories[categoryId]; |
185 | } |
186 | // not found |
187 | return d->categories[InvalidCategory]; |
188 | } |
189 | |
190 | QList<UnitCategory*> Converter::categories() const |
191 | { |
192 | QList<UnitCategory*> categories = d->categories.values(); |
193 | categories.removeAt(0); |
194 | return categories; |
195 | } |
196 | |
197 | } |
198 | |
199 | #include "converter.moc" |
200 | |