使用QLocale类将数字转换为货币字符串

时间:2014-05-04 02:42:19

标签: qt locale currency country qlocale

我正在尝试将数字转换为货币字符串。我正在使用QLocale::toCurrencyString()方法。 当我将我的系统区域设置(通过Windows 7区域和语言设置更改)设置为印度并尝试使用1872345.00转换一个数字QLocale().toCurrencyString(1872345.00)时,我得到了预期的货币字符串。

QLocale().toCurrencyString(1872345.00)

但是当我拨打QLocale(QLocale::AnyLanguage,QLocale::AnyScript,QLocale::India).toCurrencyString(1872345.00);时,我得到的格式是这样的,这是不正确的。

QLocale(QLocale::AnyLanguage,QLocale::AnyScript,QLocale::India).toCurrencyString(1872345.00)

我尝试选择不同的区域设置脚本和区域设置语言。但我无法得到正确的结果。我使用的是Qt 5.1.0。虽然我在使用QLocale().toCurrencyString()时得到了正确的结果,但我无法使用它,因为我正在处理多个国家/地区的货币,而不仅仅是系统区域设置所设置的国家/地区。为什么我得到这个错误的结果?如何将数字转换为(不同国家/地区)的货币字符串?

这是一个示例代码。

// CurrencyForms.h

#ifndef CURRENCYFORMS_H
#define CURRENCYFORMS_H

#include <QObject>

class CurrencyForms : public QObject
{
    Q_OBJECT
    Q_PROPERTY(QString defaultLocaleString READ defaultLocaleString CONSTANT)
    Q_PROPERTY(QString constructedLocaleStringAnyLanguage READ constructedLocaleStringAnyLanguage CONSTANT)
    Q_PROPERTY(QString constructedLocaleStringHindiLanguage READ constructedLocaleStringHindiLanguage CONSTANT)
public:
    explicit CurrencyForms(QObject *parent = 0);
    QString defaultLocaleString();
    QString constructedLocaleStringAnyLanguage();
    QString constructedLocaleStringHindiLanguage();
};

#endif // CURRENCYFORMS_H

// CurrencyForms.cpp

#include "CurrencyForms.h"
#include<QLocale>
CurrencyForms::CurrencyForms(QObject *parent) :
    QObject(parent)
{
}

QString CurrencyForms::defaultLocaleString()
{
    return QLocale().toCurrencyString(1872345.00);
}

QString CurrencyForms::constructedLocaleStringAnyLanguage()
{
    return QLocale(QLocale::AnyLanguage,QLocale::AnyScript,QLocale::India).toCurrencyString(1872345.00);
}

QString CurrencyForms::constructedLocaleStringHindiLanguage()
{
    return  QLocale(QLocale::Hindi,QLocale::AnyScript,QLocale::India).toCurrencyString(1872345.00);
}

// main.cpp中

#include <QtGui/QGuiApplication>
#include "qtquick2applicationviewer.h"
#include <QQmlContext>
#include <CurrencyForms.h>
int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);

    QtQuick2ApplicationViewer viewer;
    CurrencyForms forms;
    viewer.rootContext()->setContextProperty("forms",&forms);
    viewer.setMainQmlFile(QStringLiteral("qml/CurrencySymbolTest/main.qml"));
    viewer.showExpanded();

    return app.exec();
}

// main.qml

import QtQuick 2.0

Rectangle {
    width: 720
    height: 360
    Grid{
        columns:1
        spacing:2
        width: parent.width
        Text{
            id:defaultLocaleText
            width:parent.width
            height:60
            font.pixelSize:14
            elide:Text.ElideRight
            text:"QLocale().toCurrencyString(1872345.00)"
            verticalAlignment: Text.AlignVCenter
        }
        Text{
            id:defaultLocaleTextResult
            width:parent.width
            height:60
            font.pixelSize:40
            elide:Text.ElideRight
            text:forms.defaultLocaleString
            verticalAlignment: Text.AlignVCenter
            color:"green"
        }
        Text{
            id:constructedLocaleStringAnyLanguageText
            width:parent.width
            height:60
            font.pixelSize:14
            elide:Text.ElideRight
            text:"QLocale(QLocale::AnyLanguage,QLocale::AnyScript,QLocale::India).toCurrencyString(1872345.00)"
            verticalAlignment: Text.AlignVCenter
        }
        Text{
            id:constructedLocaleStringAnyResult
            width:parent.width
            height:60
            font.pixelSize:40
            elide:Text.ElideRight
            text:forms.constructedLocaleStringAnyLanguage
            verticalAlignment: Text.AlignVCenter
            color:"red"
        }
        Text{
            id:constructedLocaleStringHindiLanguage
            width:parent.width
            height:60
            font.pixelSize:14
            elide:Text.ElideRight
            text:"QLocale(QLocale::Hindi,QLocale::AnyScript,QLocale::India).toCurrencyString(1872345.00)"
            verticalAlignment: Text.AlignVCenter
        }
        Text{
            id:constructedLocaleStringHindiLanguageResult
            width:parent.width
            height:60
            font.pixelSize:40
            elide:Text.ElideRight
            text:forms.constructedLocaleStringHindiLanguage
            verticalAlignment: Text.AlignVCenter
            color:"red"
        }

    }

}

//结果 enter image description here

此处我的默认系统区域设置为印地语印度(通过Windows 7区域和语言设置)

1 个答案:

答案 0 :(得分:0)

对我来说这看起来像个错误;但是,如果要在默认情况下验证系统区域设置正在使用的值,可以尝试:

qDebug() << QLocale().languageToString(QLocale().language());
qDebug() << QLocale().scriptToString(QLocale().script());

我的节目&#34;默认&#34;作为脚本,但如果我这样做:

qDebug() << QLocale().script();

我得到&#34; 0&#34;,文档说这是QLocale :: AnyScript的价值。我要说的是,如果你默认得到了正确的东西,但是在ctor中提供相同的语言,脚本和国家,就会出现问题。

您可能需要暂时对其进行编码,和/或将其放入错误报告中。