[英]How to catch QEvent::LanguageChange in QObject
My goal is to retranslate a QObject
subclass on the fly.我的目标是即时重新翻译
QObject
子类。
In QWidget
it's really simple to catch QEvent::LanguageChange
: we just override changeEvent
.在
QWidget
,捕获QEvent::LanguageChange
非常简单:我们只需覆盖changeEvent
。 However, there is not such method in QObject
and this is where I'm stuck.但是,
QObject
没有这样的方法,这就是我被卡住的地方。
How to catch QEvent::LanguageChange
in QObject
?如何在
QObject
捕获QEvent::LanguageChange
?
You can simply override the QObject::event
method...您可以简单地覆盖
QObject::event
方法...
class my_object: public QObject {
using super = QObject;
protected:
virtual bool event (QEvent *event) override
{
if (event->type() == QEvent::LanguageChange) {
/*
* Retranslation code goes here...
*/
/*
* Return true to prevent further processing. This may
* or may not be what you want depending on your needs.
*/
return true;
}
/*
* Fall through to the base class implementation.
*/
return super::event(event);
}
};
Alternatively, you could put the same logic in an event filter and attach that to the QObject
of interest.或者,您可以将相同的逻辑放在事件过滤器中,并将其附加到感兴趣的
QObject
。
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