Function watchChildChanges

MiniZincIDE/ideutils.cpp:47–77

void watchChildChanges(QWidget* target, QObject* receiver, std::function<void()> action)
{
    for (auto widget : target->findChildren<QWidget*>()) {
        QCheckBox* checkBox;
        QLineEdit* lineEdit;
        QSpinBox* spinBox;
        QDoubleSpinBox* doubleSpinBox;
        QComboBox* comboBox;
        QGroupBox* groupBox;
        QTableWidget* tableWidget;
        QPlainTextEdit* plainTextEdit;

        if ((checkBox = qobject_cast<QCheckBox*>(widget))) {
            QObject::connect(checkBox, &QCheckBox::stateChanged, receiver, [=] (int) { action(); });
        } else if ((lineEdit = qobject_cast<QLineEdit*>(widget))) {
            QObject::connect(lineEdit, &QLineEdit::textChanged, receiver, [=] (const QString&) { action(); });
        } else if ((spinBox = qobject_cast<QSpinBox*>(widget))) {
            QObject::connect(spinBox, QOverload<int>::of(&QSpinBox::valueChanged), receiver, [=] (int) { action(); });
        } else if ((doubleSpinBox = qobject_cast<QDoubleSpinBox*>(widget))) {
            QObject::connect(doubleSpinBox, QOverload<double>::of(&QDoubleSpinBox::valueChanged), receiver, [=] (double) { action(); });
        } else if ((comboBox = qobject_cast<QComboBox*>(widget))) {
            QObject::connect(comboBox, QOverload<int>::of(&QComboBox::currentIndexChanged), receiver, [=] (int) { action(); });
        } else if ((groupBox = qobject_cast<QGroupBox*>(widget))) {
            QObject::connect(groupBox, &QGroupBox::toggled, receiver, [=] (bool) { action(); });
        } else if ((tableWidget = qobject_cast<QTableWidget*>(widget))) {
            QObject::connect(tableWidget, &QTableWidget::cellChanged, receiver, [=] (int, int) { action(); });
        } else if ((plainTextEdit = qobject_cast<QPlainTextEdit*>(widget))) {
            QObject::connect(plainTextEdit, &QPlainTextEdit::textChanged,receiver, [=] () { action(); });
        }
    }
}

QFont fontFromString(const QString& s)
{