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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qmlnumberformatter.h"
#include "private/qobject_p.h"
QT_BEGIN_NAMESPACE
//TODO: set locale
// docs
// this is a wrapper around qnumberformat (test integration)
// if number or format haven't been explictly set, text should be an empty string
class QmlNumberFormatterPrivate : public QObjectPrivate
{
Q_DECLARE_PUBLIC(QmlNumberFormatter)
public:
QmlNumberFormatterPrivate() : locale(QLocale::system()), number(0), classComplete(true) {}
void updateText();
QLocale locale;
QString format;
QNumberFormat numberFormat;
QString text;
qreal number;
bool classComplete;
};
/*!
\qmlclass NumberFormatter
\brief The NumberFormatter allows you to control the format of a number string.
The format property documentation has more details on how the format can be manipulated.
In the following example, the text element will display the text "1,234.57".
\code
<NumberFormatter id="Formatter" number="1234.5678" format="##,##0.##"/>
<Text text="{Formatter.text}"/>
\endcode
*/
/*!
\internal
\class QmlNumberFormatter
\ingroup group_utility
\brief The QmlNumberFormatter class allows you to format a number to a particular string format/locale specific number format.
*/
QmlNumberFormatter::QmlNumberFormatter(QObject *parent)
: QObject(*(new QmlNumberFormatterPrivate), parent)
{
}
QmlNumberFormatter::~QmlNumberFormatter()
{
}
/*!
\qmlproperty string NumberFormatter::text
The number in the specified format.
<br>
If no format is specified the text will be empty.
*/
QString QmlNumberFormatter::text() const
{
Q_D(const QmlNumberFormatter);
return d->text;
}
/*!
\qmlproperty qreal NumberFormatter::number
A single point precision number. (Doubles are not yet supported)
*/
qreal QmlNumberFormatter::number() const
{
Q_D(const QmlNumberFormatter);
return d->number;
}
/*!
\qmlproperty string NumberFormatter::format
The particular format the number will adhere to during the conversion to text.
<br>
The format syntax follows a style similar to the Unicode Standard (UTS35).
The table below shows the characters, patterns that can be used in the format.
<table border="0" align="center">
<tr style="background-color: #D6E2E8"><th> Character </th><th> Meaning </th></tr>
<tr><td> # </td><td> Any digit(s), zero shows as absent (for leading/trailing zeroes) </td></tr>
<tr><td> 0 </td><td> Implicit digit. Zero will show in the case that the input number is too small.</td></tr>
<tr><td> . </td><td> Decimal separator. Output decimal seperator will be dependant on system locale.</td></tr>
<tr><td> , </td><td> Grouping separator. The number of digits (either #, or 0) between the grouping separator and the decimal (or the rightmost digit) will determine the groupingSize)</td></tr>
<tr><td> other </td><td> Any other character will be taken as a string literal and placed directly into the output string </td></tr>
</table>
Invalid formats will not guarantee a meaningful text output.<br>
\note <i>Input numbers that are too long for the given format will be rounded dependent on precison based on the position of the decimal point </i>
The following table illustrates the output text created by applying some examples of numeric formats to the formatter.
<table border="0" align="center">
<tr style="background-color: #D6E2E8"><th> Format </th><th> Number </th><th> Output </th></tr>
<tr><td> ### </td><td> 123456 </td><td> 123456 </td></tr>
<tr><td> 000 </td><td> 123456 </td><td> 123456 </td></tr>
<tr><td> ###### </td><td> 1234 </td><td> 1234 </td></tr>
<tr><td> 000000 </td><td> 1234 </td><td> 001234 </td></tr>
<tr><td> ##,##0.## </td><td> 1234.456 </td><td> 1,234.46 (for US locale)<br> 1 234,46 (for FR locale)</td></tr>
<tr><td> 000000,000.# </td><td> 123456 </td><td> 000,123,456 (for US locale)<br> 000 123 456 (for FR locale)</td></tr>
<tr><td> 0.0### </td><td> 0.999997 </td><td> 1.0 </td></tr>
<tr><td> (000) 000 - 000 </td><td> 12345678 </td><td> (012) 345 - 678 </td></tr>
<tr><td> #A</td><td>12</td><td>12A</td></tr>
</table>
*/
QString QmlNumberFormatter::format() const
{
Q_D(const QmlNumberFormatter);
return d->format;
}
void QmlNumberFormatter::setNumber(const qreal &number)
{
Q_D(QmlNumberFormatter);
if (d->number == number)
return;
d->number = number;
d->updateText();
}
void QmlNumberFormatter::setFormat(const QString &format)
{
Q_D(QmlNumberFormatter);
//no format checking
if (format.isEmpty())
d->format = QString::null;
else
d->format = format;
d->updateText();
}
void QmlNumberFormatterPrivate::updateText()
{
Q_Q(QmlNumberFormatter);
if (!classComplete)
return;
QNumberFormat tempFormat;
tempFormat.setFormat(format);
tempFormat.setNumber(number);
text = tempFormat.text();
emit q->textChanged();
}
void QmlNumberFormatter::classBegin()
{
Q_D(QmlNumberFormatter);
d->classComplete = false;
}
void QmlNumberFormatter::classComplete()
{
Q_D(QmlNumberFormatter);
d->classComplete = true;
d->updateText();
}
QML_DEFINE_TYPE(QmlNumberFormatter, NumberFormatter);
QT_END_NAMESPACE
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