/**
* \brief Implements column() function for tables.
*
* \arg \c columnPath Path to the column to read data from. See
* resolveColumnPath().
*
* The row to read from is determined by the muParser variable "i" set during
* iteration of a column
* formula. For explicitly specifying the row, use cell() instead.
*
* \sa tableCellFunction()
*/
double MuParserScript::tableColumnFunction(const char *columnPath) {
Column *column =
s_currentInstance->resolveColumnPath(QString::fromUtf8(columnPath));
if (!column) return NAN; // failsafe, shouldn't happen
int row = qRound(s_currentInstance->m_variables["i"]) - 1;
if (column->isInvalid(row)) throw new EmptySourceError();
return column->valueAt(row);
}
/**
* \brief Implements cell_() function for tables.
*
* \arg \c columnIndex 1-based index of column to read data from.
* \arg \c rowIndex 1-based index of row to read data from.
*
* It is preferable to use cell() instead of this function where possible, because referring to
* columns via index silently breaks when moving columns.
*
* \sa tableColumn_Function()
*/
double MuParserScript::tableCell_Function(double columnIndex, double rowIndex) {
Table *thisTable = qobject_cast<Table*>(s_currentInstance->Context);
if (!thisTable)
throw mu::Parser::exception_type(qPrintable(tr("cell() works only on tables and matrices!")));
Column *column = thisTable->d_future_table->column(qRound(columnIndex) - 1);
if (!column)
throw mu::Parser::exception_type(qPrintable(tr("There's no column %1 in table %2!")
.arg(qRound(columnIndex)).arg(thisTable->objectName())));
int row = qRound(rowIndex) - 1;
if (column->isInvalid(row))
throw new EmptySourceError();
return column->valueAt(row);
}
/**
* \brief Implements column_() function for tables.
*
* \arg \c columnIndex 1-based index of the column to read data from.
*
* It is preferable to use column() instead of this function where possible, because referring to
* columns via index silently breaks when moving columns.
*
* The row to read from is determined by the muParser variable "i" set during iteration of a column
* formula. For explicitly specifying the row, use cell_() instead.
*
* \sa tableCell_Function()
*/
double MuParserScript::tableColumn_Function(double columnIndex) {
Table *thisTable = qobject_cast<Table*>(s_currentInstance->Context);
if (!thisTable)
// improving the error message would break translations
// TODO: change col() to column() for next minor release
throw mu::Parser::exception_type(qPrintable(tr("col() works only on tables!")));
Column *column = thisTable->d_future_table->column(qRound(columnIndex) - 1);
if (!column)
throw mu::Parser::exception_type(qPrintable(tr("There's no column %1 in table %2!")
.arg(qRound(columnIndex)).arg(thisTable->objectName())));
int row = qRound(s_currentInstance->m_variables["i"]) - 1;
if (column->isInvalid(row))
throw new EmptySourceError();
return column->valueAt(row);
}
