@Override
protected void mouseReleaseEvent(QMouseEvent event) {
if (event.button() == Qt.MouseButton.LeftButton && scribbling) {
drawLineTo(event.pos());
scribbling = false;
}
}
@Override
protected void mousePressEvent(QMouseEvent event) {
if (event.button() == Qt.MouseButton.LeftButton) {
lastPoint = event.pos();
scribbling = true;
}
}
// ! [6]
protected void mousePressEvent(QMouseEvent event) {
if (event.button().equals(Qt.MouseButton.LeftButton)) dragStartPosition = event.pos();
}