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#ifndef EVENTFILTERS_H
#define EVENTFILTERS_H
#include <QEvent>
#include <QLineEdit>
class AOLineEditFilter : public QObject
{
Q_OBJECT
public:
bool preserve_selection = false;
protected:
bool eventFilter(QObject *obj, QEvent *event) override {
QLineEdit *lineEdit = qobject_cast<QLineEdit *>(obj);
if (event->type() == QEvent::FocusOut && lineEdit != nullptr && preserve_selection) { // lost focus
int start = lineEdit->selectionStart();
#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
int len = lineEdit->selectionLength();
#else
int len = lineEdit->selectedText().length();
#endif
if (start != -1 && len != -1) {
lineEdit->setSelection(start, len);\
return true;
}
}
return false;
}
signals:
void double_clicked();
};
#endif // EVENTFILTERS_H
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