C++/Qt/QCheckBox
Subclass QCheckBox and handle mouse event
<source lang="cpp"> /****************************************************************************
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- include <QCheckBox>
- include <QMouseEvent>
class MyCheckBox : public QCheckBox { public:
void mousePressEvent(QMouseEvent *event);
}; void MyCheckBox::mousePressEvent(QMouseEvent *event) {
if (event->button() == Qt::LeftButton) { // handle left mouse button here } else { // pass on other buttons to base class QCheckBox::mousePressEvent(event); }
} class MyWidget : public QWidget { public:
bool event(QEvent *event);
}; static const int MyCustomEventType = 1099; class MyCustomEvent : public QEvent { public:
MyCustomEvent() : QEvent((QEvent::Type)MyCustomEventType) {}
}; bool MyWidget::event(QEvent *event) {
if (event->type() == QEvent::KeyPress) { QKeyEvent *ke = static_cast<QKeyEvent *>(event); if (ke->key() == Qt::Key_Tab) { return true; } } else if (event->type() == MyCustomEventType) { MyCustomEvent *myEvent = static_cast<MyCustomEvent *>(event); return true; } return QWidget::event(event);
} int main() { }
</source>