Method insertColumns

src/backend/spreadsheet/Spreadsheet.cpp:638–656

! * Inserts \c count columns before the \c before column index in the spreadsheet. * @param count The number of columns to insert. * @param before The column index before which the columns are inserted. */

 * @param before The column index before which the columns are inserted.
 */
void Spreadsheet::insertColumns(int before, int count) {
	WAIT_CURSOR;
	beginMacro(i18np("%1: insert 1 column", "%1: insert %2 columns", name(), count));
	const int cols = columnCount();
	const int rows = rowCount();
	const int last = before + count - 1;
	Q_EMIT aspectsAboutToBeInserted(before, last);
	for (int i = 0; i < count; i++) {
		auto* new_col = new Column(QString::number(cols + i + 1), AbstractColumn::ColumnMode::Double);
		new_col->setPlotDesignation(AbstractColumn::PlotDesignation::Y);
		new_col->insertRows(0, rows);
		insertChild(new_col, before + i);
	}
	Q_EMIT aspectsInserted(before, last);

	exec(new SpreadsheetSetColumnsCountCmd(this, cols, columnCount()));
	endMacro();
	RESET_CURSOR;
}

/*!
 * Clears all values in the spreadsheet.