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| |
| #include "tablemodel.h" |
| |
| //! [0] |
| TableModel::TableModel(QObject *parent) |
| : QAbstractTableModel(parent) |
| { |
| } |
| |
| TableModel::TableModel(const QVector<Contact> &contacts, QObject *parent) |
| : QAbstractTableModel(parent), |
| contacts(contacts) |
| { |
| } |
| //! [0] |
| |
| //! [1] |
| int TableModel::rowCount(const QModelIndex &parent) const |
| { |
| return parent.isValid() ? 0 : contacts.size(); |
| } |
| |
| int TableModel::columnCount(const QModelIndex &parent) const |
| { |
| return parent.isValid() ? 0 : 2; |
| } |
| //! [1] |
| |
| //! [2] |
| QVariant TableModel::data(const QModelIndex &index, int role) const |
| { |
| if (!index.isValid()) |
| return QVariant(); |
| |
| if (index.row() >= contacts.size() || index.row() < 0) |
| return QVariant(); |
| |
| if (role == Qt::DisplayRole) { |
| const auto &contact = contacts.at(index.row()); |
| |
| switch (index.column()) { |
| case 0: |
| return contact.name; |
| case 1: |
| return contact.address; |
| default: |
| break; |
| } |
| } |
| return QVariant(); |
| } |
| //! [2] |
| |
| //! [3] |
| QVariant TableModel::headerData(int section, Qt::Orientation orientation, int role) const |
| { |
| if (role != Qt::DisplayRole) |
| return QVariant(); |
| |
| if (orientation == Qt::Horizontal) { |
| switch (section) { |
| case 0: |
| return tr("Name"); |
| case 1: |
| return tr("Address"); |
| default: |
| break; |
| } |
| } |
| return QVariant(); |
| } |
| //! [3] |
| |
| //! [4] |
| bool TableModel::insertRows(int position, int rows, const QModelIndex &index) |
| { |
| Q_UNUSED(index); |
| beginInsertRows(QModelIndex(), position, position + rows - 1); |
| |
| for (int row = 0; row < rows; ++row) |
| contacts.insert(position, { QString(), QString() }); |
| |
| endInsertRows(); |
| return true; |
| } |
| //! [4] |
| |
| //! [5] |
| bool TableModel::removeRows(int position, int rows, const QModelIndex &index) |
| { |
| Q_UNUSED(index); |
| beginRemoveRows(QModelIndex(), position, position + rows - 1); |
| |
| for (int row = 0; row < rows; ++row) |
| contacts.removeAt(position); |
| |
| endRemoveRows(); |
| return true; |
| } |
| //! [5] |
| |
| //! [6] |
| bool TableModel::setData(const QModelIndex &index, const QVariant &value, int role) |
| { |
| if (index.isValid() && role == Qt::EditRole) { |
| const int row = index.row(); |
| auto contact = contacts.value(row); |
| |
| switch (index.column()) { |
| case 0: |
| contact.name = value.toString(); |
| break; |
| case 1: |
| contact.address = value.toString(); |
| break; |
| default: |
| return false; |
| } |
| contacts.replace(row, contact); |
| emit dataChanged(index, index, {Qt::DisplayRole, Qt::EditRole}); |
| |
| return true; |
| } |
| |
| return false; |
| } |
| //! [6] |
| |
| //! [7] |
| Qt::ItemFlags TableModel::flags(const QModelIndex &index) const |
| { |
| if (!index.isValid()) |
| return Qt::ItemIsEnabled; |
| |
| return QAbstractTableModel::flags(index) | Qt::ItemIsEditable; |
| } |
| //! [7] |
| |
| //! [8] |
| const QVector<Contact> &TableModel::getContacts() const |
| { |
| return contacts; |
| } |
| //! [8] |