[Interest] [Solved] Change QCheckBox to QPushButton in a QTableView

[Jason H]

Oh man what a trip. The essentials for anyone who wants to replace checkboxes with QPushbuttons:


void ButtonDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const {
	bool isChecked = index.data(Qt::CheckStateRole).toInt() == Qt::Checked;
	//qDebug() << Q_FUNC_INFO << "checkState" << index.row() << index.column() << isChecked << option.state;
	QStyleOptionButton sob;
	PushButton button;

	button.setCheckable(true);
	button.setChecked(isChecked);
	button.initStyleOption(&sob);

	sob.rect = option.rect;
	sob.text = _text;
	sob.state = QStyle::State_Raised;
	sob.state.setFlag( isChecked ? QStyle::State_On : QStyle::State_Off);

	QApplication::style()->drawControl(QStyle::CE_PushButton, &sob, painter);
}

void ButtonDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const
{
	qDebug() << Q_FUNC_INFO;
	QPushButton *button = static_cast<QPushButton*>(editor);
	bool isChecked = index.model()->data(index, Qt::CheckStateRole).toInt() == Qt::Checked;

	button->setChecked( ! isChecked); // Toggle it here!
}

void TableView::mouseReleaseEvent(QMouseEvent *event)
{
	QModelIndex index = indexAt(event->pos());
	//setCurrentIndex(index);
	QWidget * widget = indexWidget(index);
	if (event->button() == Qt::LeftButton && index.isValid()) {
		CsvModel *csv_model = static_cast<CsvModel*>(model());
		if (csv_model->isOutput(index.column())) { // column you want to use for one click
			edit(index);
			endEdit(); // don't need to wait, we toggled it via setEditorData
		}
	}
	QTableView::mousePressEvent(event);
}

void TableView::endEdit() {
	QModelIndex index = currentIndex();
	currentChanged( index, index );
}