CODEWITHSUNDEEP
c++qt
BadRobot
BadRobot

Reputation: 275

how to copy the QTableView header to the clipboard?

Is there a way to allow the header of a QTableView to be copied to the clipboard?

I have a table created with QTableView and QAbstractTableModel. To enable rowd and columns selection, I add this line to the constructor of my QTableView

setSelectionMode(QAbstractItemView::ExtendedSelection);

And to copy the data table to the clipboard I implemented the following function in a class that inherits from QTableView:

bool MyTableView::eventFilter(QObject * obj, QEvent * event) {
    if(event->type() == QEvent::KeyPress ) {
        auto* keyEvent = dynamic_cast<QKeyEvent*>(event);
        if (keyEvent->key() == Qt::Key_C && (keyEvent->modifiers() == Qt::ControlModifier)) {
            QModelIndexList cells = selectedIndexes();
            std::sort(cells.begin(), cells.end()); // Necessary, otherwise they are in column order

            QString text;
            int currentRow = 0; // To determine when to insert newlines
            foreach (const QModelIndex& cell, cells) {
                if (text.length() == 0) {
                    // First item
                } else if (cell.row() != currentRow) {
                    // New row
                    text += '\n';
                } else {
                    // Next cell
                    text += '\t';
                }
                currentRow = cell.row();
                text += cell.data().toString();
            }
            QApplication::clipboard()->setText(text);
            return true;
        }
    }
    return QObject::eventFilter(obj, event);
}

The above function allows me to copy any cell/row and even column of a table. The only problem is that I can't copy a table header to the clipboard. Is there a way to make the header selectable and copyable?

In MyTableModel class I implement the flags function to select the table items.

Qt::ItemFlags MyTableModel::flags(const QModelIndex &index) const {
    return QAbstractTableModel::flags(index) | Qt::ItemIsSelectable;
}

Any suggestion or idea?

Upvotes: 1

Views: 95

Answers (1)

mugiseyebrows
mugiseyebrows

Reputation: 4743

You can use model()->headerData(column, Qt::Horizontal).toString() to get header data, just collect list of column indexes from selectedIndexes before itarating over data and call it for each item, appending result to text.

To make header selectable you need to override default QHeaderView behaviour, by default clicking on header section makes whole row or column selected.

Upvotes: 1

Related Questions