我正在创建一个 Qt 应用程序并添加了动态翻译(我按照http://www.qtcentre.org/wiki/index.php?title=Dynamic_translation_in_Qt4_applications中的示例)和一个列出不同语言的 QCombobox。它运作良好,但问题是我看不到如何动态翻译对话框窗口中的文本(例如“是”和“否”按钮)。
在 main.cpp 中,在执行应用程序之前,我有:
QTranslator qtTranslator;
qtTranslator.load("qt_" + QLocale::system().name(), QLibraryInfo::location(QLibraryInfo::TranslationsPath));
a.installTranslator(&qtTranslator);
它将对话窗口翻译成用户系统语言,但我想像我的应用程序的其余部分一样动态地执行它。
以下是示例代码:application.h:
#ifndef APPLICATION_H
#include <QApplication>
#include <QHash>
#include <QStringList>
class QDir;
class QTranslator;
typedef QHash<QString, QTranslator*> Translators;
class Application : public QApplication
{
Q_OBJECT
public:
explicit Application(int& argc, char* argv[]);
~Application();
static void loadTranslations(const QString& dir);
static void loadTranslations(const QDir& dir);
static const QStringList availableLanguages();
public slots:
static void setLanguage(const QString& locale);
private:
static QTranslator* current;
static Translators translators;
//static QTranslator* qtTranslator;//test to translate dialog windows
};
#endif // APPLICATION_H
应用程序.cpp:
#include <QDir>
#include <QFileInfo>
#include <QTranslator>
#include <QLibraryInfo>
#include "application.h"
QTranslator* Application::current = 0;
//QTranslator* Application::qtTranslator = 0;//test to translate dialog windows
Translators Application::translators;
Application::Application(int& argc, char* argv[])
: QApplication(argc, argv)
{
}
Application::~Application()
{
}
void Application::loadTranslations(const QString& dir)
{
loadTranslations(QDir(dir));
QString locale = QLocale::system().name().section('_', 0, 0);
QString language=locale+ "_" + locale;
if(!QFile::exists(":Localization/Localization/"+language+".qm"))//if system language is not available, load english version
setLanguage("en_en");
else
setLanguage(language);
}
void Application::loadTranslations(const QDir& dir)
{
// <language>_<country>.qm
QString filter = "*_*.qm";
QDir::Filters filters = QDir::Files | QDir::Readable;
QDir::SortFlags sort = QDir::Name;
QFileInfoList entries = dir.entryInfoList(QStringList() << filter, filters, sort);
foreach (QFileInfo file, entries)
{
// pick country and language out of the file name
QStringList parts = file.baseName().split("_");
QString language = parts.at(parts.count() - 2);
QString country = parts.at(parts.count() - 1);
// construct and load translator
QTranslator* translator = new QTranslator(instance());
if (translator->load(file.absoluteFilePath()))
{
QString locale = language + "_" + country;
translators.insert(locale, translator);
}
}
}
const QStringList Application::availableLanguages()
{
// the content won't get copied thanks to implicit sharing and constness
return QStringList(translators.keys());
}
void Application::setLanguage(const QString& locale)
{
//test to translate dialog windows
/*
QTranslator qtTranslator;
QString qTLocale=locale.mid(0,2);
qtTranslator->load("qt_"+ qTLocale, QLibraryInfo::location(QLibraryInfo::TranslationsPath));
installTranslator(qtTranslator);
//*/
// remove previous
if (current)
{
removeTranslator(current);
}
// install new
current = translators.value(locale, 0);
if (current)
{
installTranslator(current);
}
}
我添加了注释为“//test to translate dialog Windows”的行,以尝试对对话框 Windows 进行动态翻译,但它不起作用(编译时没有错误,但应用程序未启动并显示错误消息“程序突然停止“,我在 Qt Creator 上)。谢谢!