我在我的qdateedit'sdateEdit上使用了事件过滤器,如下所示:
bool Class::eventFilter ( QObject *obj, QEvent *event )
{
if(event->type() == QEvent::MouseButtonPress)
{
sdateEdit->calendarWidget()->show();
}
else
return QObject::eventFilter ( obj, event );
}
这不起作用。我尝试了.. sdateEdit-> setCalendarPopup(true)。这也无法正常工作。
在这种情况下,我已经实现了自定义qdateEdit,策略是在单击qlineedit并将单击事件发送到箭头时使用EventFilter:
#include <QtWidgets>
class DateEdit: public QDateEdit
{
public:
DateEdit(QWidget *parent=nullptr):
QDateEdit(parent)
{
lineEdit()->installEventFilter(this);
}
bool eventFilter(QObject *watched, QEvent *event) override
{
if(watched == lineEdit() && event->type() == QEvent::MouseButtonPress){
QStyleOptionComboBox opt;
opt.init(this);
QRect r = style()->subControlRect(QStyle::CC_ComboBox, &opt, QStyle::SC_ComboBoxArrow, this);
QPoint p = r.center();
QMouseEvent *event = new QMouseEvent(QEvent::MouseButtonPress, p, Qt::LeftButton, Qt::LeftButton, Qt::NoModifier);
QCoreApplication::sendEvent(this, event);
}
return QDateEdit::eventFilter(watched, event);
}
};
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
DateEdit w;
w.setCalendarPopup(true);
w.show();
return a.exec();
}