source: trunk/src/declarative/qml/qdeclarativestringconverters.cpp@ 900

Last change on this file since 900 was 846, checked in by Dmitry A. Kuminov, 14 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.
File size: 8.6 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation (qt-info@nokia.com)
6**
7** This file is part of the QtDeclarative module of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at qt-info@nokia.com.
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include "private/qdeclarativestringconverters_p.h"
43
44#include <QtGui/qcolor.h>
45#include <QtGui/qvector3d.h>
46#include <QtCore/qpoint.h>
47#include <QtCore/qrect.h>
48#include <QtCore/qsize.h>
49#include <QtCore/qvariant.h>
50#include <QtCore/qdatetime.h>
51
52QT_BEGIN_NAMESPACE
53
54static uchar fromHex(const uchar c, const uchar c2)
55{
56 uchar rv = 0;
57 if (c >= '0' && c <= '9')
58 rv += (c - '0') * 16;
59 else if (c >= 'A' && c <= 'F')
60 rv += (c - 'A' + 10) * 16;
61 else if (c >= 'a' && c <= 'f')
62 rv += (c - 'a' + 10) * 16;
63
64 if (c2 >= '0' && c2 <= '9')
65 rv += (c2 - '0');
66 else if (c2 >= 'A' && c2 <= 'F')
67 rv += (c2 - 'A' + 10);
68 else if (c2 >= 'a' && c2 <= 'f')
69 rv += (c2 - 'a' + 10);
70
71 return rv;
72}
73
74static uchar fromHex(const QString &s, int idx)
75{
76 uchar c = s.at(idx).toAscii();
77 uchar c2 = s.at(idx + 1).toAscii();
78 return fromHex(c, c2);
79}
80
81QVariant QDeclarativeStringConverters::variantFromString(const QString &s)
82{
83 if (s.isEmpty())
84 return QVariant(s);
85 bool ok = false;
86 QRectF r = rectFFromString(s, &ok);
87 if (ok) return QVariant(r);
88 QColor c = colorFromString(s, &ok);
89 if (ok) return QVariant(c);
90 QPointF p = pointFFromString(s, &ok);
91 if (ok) return QVariant(p);
92 QSizeF sz = sizeFFromString(s, &ok);
93 if (ok) return QVariant(sz);
94 QVector3D v = vector3DFromString(s, &ok);
95 if (ok) return qVariantFromValue(v);
96
97 return QVariant(s);
98}
99
100QVariant QDeclarativeStringConverters::variantFromString(const QString &s, int preferredType, bool *ok)
101{
102 switch (preferredType) {
103 case QMetaType::Int:
104 return QVariant(int(qRound(s.toDouble(ok))));
105 case QMetaType::UInt:
106 return QVariant(uint(qRound(s.toDouble(ok))));
107 case QMetaType::QColor:
108 return QVariant::fromValue(colorFromString(s, ok));
109#ifndef QT_NO_DATESTRING
110 case QMetaType::QDate:
111 return QVariant::fromValue(dateFromString(s, ok));
112 case QMetaType::QTime:
113 return QVariant::fromValue(timeFromString(s, ok));
114 case QMetaType::QDateTime:
115 return QVariant::fromValue(dateTimeFromString(s, ok));
116#endif // QT_NO_DATESTRING
117 case QMetaType::QPointF:
118 return QVariant::fromValue(pointFFromString(s, ok));
119 case QMetaType::QPoint:
120 return QVariant::fromValue(pointFFromString(s, ok).toPoint());
121 case QMetaType::QSizeF:
122 return QVariant::fromValue(sizeFFromString(s, ok));
123 case QMetaType::QSize:
124 return QVariant::fromValue(sizeFFromString(s, ok).toSize());
125 case QMetaType::QRectF:
126 return QVariant::fromValue(rectFFromString(s, ok));
127 case QMetaType::QRect:
128 return QVariant::fromValue(rectFFromString(s, ok).toRect());
129 case QMetaType::QVector3D:
130 return QVariant::fromValue(vector3DFromString(s, ok));
131 default:
132 if (ok) *ok = false;
133 return QVariant();
134 }
135}
136
137QColor QDeclarativeStringConverters::colorFromString(const QString &s, bool *ok)
138{
139 if (s.startsWith(QLatin1Char('#')) && s.length() == 9) {
140 uchar a = fromHex(s, 1);
141 uchar r = fromHex(s, 3);
142 uchar g = fromHex(s, 5);
143 uchar b = fromHex(s, 7);
144 if (ok) *ok = true;
145 return QColor(r, g, b, a);
146 } else {
147 QColor rv;
148 if (s.startsWith(QLatin1Char('#')) || QColor::colorNames().contains(s.toLower()))
149 rv = QColor(s);
150 if (ok) *ok = rv.isValid();
151 return rv;
152 }
153}
154
155#ifndef QT_NO_DATESTRING
156QDate QDeclarativeStringConverters::dateFromString(const QString &s, bool *ok)
157{
158 QDate d = QDate::fromString(s, Qt::ISODate);
159 if (ok) *ok = d.isValid();
160 return d;
161}
162
163QTime QDeclarativeStringConverters::timeFromString(const QString &s, bool *ok)
164{
165 QTime t = QTime::fromString(s, Qt::ISODate);
166 if (ok) *ok = t.isValid();
167 return t;
168}
169
170QDateTime QDeclarativeStringConverters::dateTimeFromString(const QString &s, bool *ok)
171{
172 QDateTime d = QDateTime::fromString(s, Qt::ISODate);
173 if (ok) *ok = d.isValid();
174 return d;
175}
176#endif // QT_NO_DATESTRING
177
178//expects input of "x,y"
179QPointF QDeclarativeStringConverters::pointFFromString(const QString &s, bool *ok)
180{
181 if (s.count(QLatin1Char(',')) != 1) {
182 if (ok)
183 *ok = false;
184 return QPointF();
185 }
186
187 bool xGood, yGood;
188 int index = s.indexOf(QLatin1Char(','));
189 qreal xCoord = s.left(index).toDouble(&xGood);
190 qreal yCoord = s.mid(index+1).toDouble(&yGood);
191 if (!xGood || !yGood) {
192 if (ok)
193 *ok = false;
194 return QPointF();
195 }
196
197 if (ok)
198 *ok = true;
199 return QPointF(xCoord, yCoord);
200}
201
202//expects input of "widthxheight"
203QSizeF QDeclarativeStringConverters::sizeFFromString(const QString &s, bool *ok)
204{
205 if (s.count(QLatin1Char('x')) != 1) {
206 if (ok)
207 *ok = false;
208 return QSizeF();
209 }
210
211 bool wGood, hGood;
212 int index = s.indexOf(QLatin1Char('x'));
213 qreal width = s.left(index).toDouble(&wGood);
214 qreal height = s.mid(index+1).toDouble(&hGood);
215 if (!wGood || !hGood) {
216 if (ok)
217 *ok = false;
218 return QSizeF();
219 }
220
221 if (ok)
222 *ok = true;
223 return QSizeF(width, height);
224}
225
226//expects input of "x,y,widthxheight" //### use space instead of second comma?
227QRectF QDeclarativeStringConverters::rectFFromString(const QString &s, bool *ok)
228{
229 if (s.count(QLatin1Char(',')) != 2 || s.count(QLatin1Char('x')) != 1) {
230 if (ok)
231 *ok = false;
232 return QRectF();
233 }
234
235 bool xGood, yGood, wGood, hGood;
236 int index = s.indexOf(QLatin1Char(','));
237 qreal x = s.left(index).toDouble(&xGood);
238 int index2 = s.indexOf(QLatin1Char(','), index+1);
239 qreal y = s.mid(index+1, index2-index-1).toDouble(&yGood);
240 index = s.indexOf(QLatin1Char('x'), index2+1);
241 qreal width = s.mid(index2+1, index-index2-1).toDouble(&wGood);
242 qreal height = s.mid(index+1).toDouble(&hGood);
243 if (!xGood || !yGood || !wGood || !hGood) {
244 if (ok)
245 *ok = false;
246 return QRectF();
247 }
248
249 if (ok)
250 *ok = true;
251 return QRectF(x, y, width, height);
252}
253
254//expects input of "x,y,z"
255QVector3D QDeclarativeStringConverters::vector3DFromString(const QString &s, bool *ok)
256{
257 if (s.count(QLatin1Char(',')) != 2) {
258 if (ok)
259 *ok = false;
260 return QVector3D();
261 }
262
263 bool xGood, yGood, zGood;
264 int index = s.indexOf(QLatin1Char(','));
265 int index2 = s.indexOf(QLatin1Char(','), index+1);
266 qreal xCoord = s.left(index).toDouble(&xGood);
267 qreal yCoord = s.mid(index+1, index2-index-1).toDouble(&yGood);
268 qreal zCoord = s.mid(index2+1).toDouble(&zGood);
269 if (!xGood || !yGood || !zGood) {
270 if (ok)
271 *ok = false;
272 return QVector3D();
273 }
274
275 if (ok)
276 *ok = true;
277 return QVector3D(xCoord, yCoord, zCoord);
278}
279
280QT_END_NAMESPACE
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