Method validateExpression

src/frontend/widgets/ExpressionTextEdit.cpp:124–144

! * \brief Validates the current expression if the text was changed and highlights the text field if the expression is invalid. * \param force forces the validation and highlighting when no text changes were made, used when new parameters/variables were provided */

 * \param force forces the validation and highlighting when no text changes were made, used when new parameters/variables were provided
 */
void ExpressionTextEdit::validateExpression(bool force) {
	// check whether the expression was changed or only the formatting
	QString text = toPlainText().simplified();
	bool textChanged{(text != m_currentExpression) ? true : false};

	if (textChanged || force) {
		auto parser = ExpressionParser::getInstance();
		m_isValid = parser->isValid(text, m_variables);
		if (!m_isValid) {
			setToolTip(parser->errorMessage());
			SET_WARNING_STYLE(this)
		} else {
			setToolTip(QStringLiteral(""));
			setStyleSheet(QString());
		}

		m_currentExpression = std::move(text);
	}
	if (textChanged)
		Q_EMIT expressionChanged();
}

// ##############################################################################
// ####################################  Events   ###############################