如何强制QLocale ::系统更改 [英] How to force QLocale::system to change
问题描述
我需要经常测试我的应用程序翻译为非英语语言,这是非常不舒服的改变整个操作系统语言只是做这个简单的检查。
我如何使用环境变量来更改Qt检测的系统语言?
或使用命令行参数。
我尝试更改 LANG
, LANGUAGE
环境变量,但它没有效果。
然而,在GNOME它有!
UPD:代码我使用这样的代码来确定系统语言环境和加载适当的翻译:
QTranslator app_translator;
if(!app_translator.load(app_+ QLocale :: system().name(),app_tr_dir))
qWarning(无法从%s加载语言环境%s的应用程序翻译文件,qPrintable(QLocale :: system().name()),app_tr_dir.toLocal8Bit()。data());
else
app.installTranslator(& app_translator);
我的操作系统是Kubuntu 13.10,Qt版本是4.8。
对于测试你可以使用类似的东西:
int main(int argc,char ** argv){
QApplication app(argc,argv);
QLocale localeUsedToDeterminateTranslators = QLocale :: system();
Q_FOREACH(QString a,app.arguments()){
const static localeParam =-locale:;
if(a.startsWith(localeParam)){
localeUsedToDeterminateTranslators = QLocale(a.mid(sizeof(localeParam)-1));
break;
}
}
... //您的正常代码
然后当你运行你的应用程序,你可以运行它与额外的参数: ./ yourAppName -locale:nl
。有关可能的值,请参见 QLocale的文档。 / p>
编辑:我发现更好的方法,有一个方法
QLocale :: setDefault
,因此这应该会更好: int main(int argc,char ** argv){
QApplication app(argc,argv);
Q_FOREACH(QString a,app.arguments()){
const static localeParam =-locale:;
if(a.startsWith(localeParam)){
QLocale :: setDefault(QLocale(a.mid(sizeof(localeParam)-1)));
break;
}
}
...
QTranslator app_translator;
if(!app_translator.load(app_+ QLocale()。name(),app_tr_dir))
qWarning(无法从%s加载语言环境%s的应用程序翻译文件,qPrintable (QLocale()。name()),app_tr_dir.toLocal8Bit()。data());
else
app.installTranslator(& app_translator);
I need to test my application translation to non-English language very often, and this is very uncomfortable to change the whole operating system language just to do this simple check. How can i change Qt-detected system language using environment variables for example? or with command-line parameter.
I try to change LANG
, LANGUAGE
environment variables, but it has no effect.
However, under GNOME it has!
UPD: code i'm using such code to determine the system locale and load appropriate translation:
QTranslator app_translator;
if (!app_translator.load ("app_" + QLocale::system ().name (), app_tr_dir))
qWarning ("Can't load app translator file for locale %s from %s", qPrintable (QLocale::system ().name ()), app_tr_dir.toLocal8Bit().data());
else
app.installTranslator (&app_translator);
P.S. My OS is Kubuntu 13.10, Qt version is 4.8.
For testing you can use something like that (just correct main function):
int main(int argc, char **argv) {
QApplication app(argc, argv);
QLocale localeUsedToDeterminateTranslators = QLocale::system();
Q_FOREACH(QString a, app.arguments()) {
const static localeParam = "-locale:";
if (a.startsWith(localeParam)) {
localeUsedToDeterminateTranslators = QLocale(a.mid(sizeof(localeParam)-1));
break;
}
}
... // your normal code
Then when you run you app you can just run it with extra parameter: ./yourAppName -locale:nl
. See documentation of QLocale for possible values.
Edit: I've found even better approach, there is a method
QLocale::setDefault
, so this should work even better:int main(int argc, char **argv) {
QApplication app(argc, argv);
Q_FOREACH(QString a, app.arguments()) {
const static localeParam = "-locale:";
if (a.startsWith(localeParam)) {
QLocale::setDefault(QLocale(a.mid(sizeof(localeParam)-1)));
break;
}
}
...
QTranslator app_translator;
if (!app_translator.load ("app_" + QLocale().name (), app_tr_dir))
qWarning ("Can't load app translator file for locale %s from %s", qPrintable (QLocale().name()), app_tr_dir.toLocal8Bit().data());
else
app.installTranslator (&app_translator);
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