rust-qt-binding-generator/examples/todos/src/Bindings.cpp

/* generated by rust_qt_binding_generator */
#include "Bindings.h"

namespace {

    struct option_quintptr {
    public:
        quintptr value;
        bool some;
        operator QVariant() const {
            if (some) {
                return QVariant::fromValue(value);
            }
            return QVariant();
        }
    };
    static_assert(std::is_pod<option_quintptr>::value, "option_quintptr must be a POD type.");

    typedef void (*qstring_set)(QString* val, const char* utf8, int nbytes);
    void set_qstring(QString* val, const char* utf8, int nbytes) {
        *val = QString::fromUtf8(utf8, nbytes);
    }

    struct qmodelindex_t {
        int row;
        quintptr id;
    };
    inline QVariant cleanNullQVariant(const QVariant& v) {
        return (v.isNull()) ?QVariant() :v;
    }
    inline void todosActiveCountChanged(Todos* o)
    {
        Q_EMIT o->activeCountChanged();
    }
    inline void todosCountChanged(Todos* o)
    {
        Q_EMIT o->countChanged();
    }
}
extern "C" {
    bool todos_data_completed(const Todos::Private*, int);
    bool todos_set_data_completed(Todos::Private*, int, bool);
    void todos_data_description(const Todos::Private*, int, QString*, qstring_set);
    bool todos_set_data_description(Todos::Private*, int, const ushort* s, int len);
    void todos_sort(Todos::Private*, unsigned char column, Qt::SortOrder order = Qt::AscendingOrder);

    int todos_row_count(const Todos::Private*);
    bool todos_insert_rows(Todos::Private*, int, int);
    bool todos_remove_rows(Todos::Private*, int, int);
    bool todos_can_fetch_more(const Todos::Private*);
    void todos_fetch_more(Todos::Private*);
}
int Todos::columnCount(const QModelIndex &parent) const
{
    return (parent.isValid()) ? 0 : 1;
}

bool Todos::hasChildren(const QModelIndex &parent) const
{
    return rowCount(parent) > 0;
}

int Todos::rowCount(const QModelIndex &parent) const
{
    return (parent.isValid()) ? 0 : todos_row_count(m_d);
}

bool Todos::insertRows(int row, int count, const QModelIndex &)
{
    return todos_insert_rows(m_d, row, count);
}

bool Todos::removeRows(int row, int count, const QModelIndex &)
{
    return todos_remove_rows(m_d, row, count);
}

QModelIndex Todos::index(int row, int column, const QModelIndex &parent) const
{
    if (!parent.isValid() && row >= 0 && row < rowCount(parent) && column >= 0 && column < 1) {
        return createIndex(row, column, (quintptr)row);
    }
    return QModelIndex();
}

QModelIndex Todos::parent(const QModelIndex &) const
{
    return QModelIndex();
}

bool Todos::canFetchMore(const QModelIndex &parent) const
{
    return (parent.isValid()) ? 0 : todos_can_fetch_more(m_d);
}

void Todos::fetchMore(const QModelIndex &parent)
{
    if (!parent.isValid()) {
        todos_fetch_more(m_d);
    }
}
void Todos::updatePersistentIndexes() {}

void Todos::sort(int column, Qt::SortOrder order)
{
    todos_sort(m_d, column, order);
}
Qt::ItemFlags Todos::flags(const QModelIndex &i) const
{
    auto flags = QAbstractItemModel::flags(i);
    if (i.column() == 0) {
        flags |= Qt::ItemIsEditable;
    }
    return flags;
}

bool Todos::completed(int row) const
{
    return todos_data_completed(m_d, row);
}

bool Todos::setCompleted(int row, bool value)
{
    bool set = false;
    set = todos_set_data_completed(m_d, row, value);
    if (set) {
        QModelIndex index = createIndex(row, 0, row);
        Q_EMIT dataChanged(index, index);
    }
    return set;
}

QString Todos::description(int row) const
{
    QString s;
    todos_data_description(m_d, row, &s, set_qstring);
    return s;
}

bool Todos::setDescription(int row, const QString& value)
{
    bool set = false;
    set = todos_set_data_description(m_d, row, value.utf16(), value.length());
    if (set) {
        QModelIndex index = createIndex(row, 0, row);
        Q_EMIT dataChanged(index, index);
    }
    return set;
}

QVariant Todos::data(const QModelIndex &index, int role) const
{
    Q_ASSERT(rowCount(index.parent()) > index.row());
    switch (index.column()) {
    case 0:
        switch (role) {
        case Qt::UserRole + 0:
            return QVariant::fromValue(completed(index.row()));
        case Qt::UserRole + 1:
            return QVariant::fromValue(description(index.row()));
        }
        break;
    }
    return QVariant();
}

int Todos::role(const char* name) const {
    auto names = roleNames();
    auto i = names.constBegin();
    while (i != names.constEnd()) {
        if (i.value() == name) {
            return i.key();
        }
        ++i;
    }
    return -1;
}
QHash<int, QByteArray> Todos::roleNames() const {
    QHash<int, QByteArray> names = QAbstractItemModel::roleNames();
    names.insert(Qt::UserRole + 0, "completed");
    names.insert(Qt::UserRole + 1, "description");
    return names;
}
QVariant Todos::headerData(int section, Qt::Orientation orientation, int role) const
{
    if (orientation != Qt::Horizontal) {
        return QVariant();
    }
    return m_headerData.value(qMakePair(section, (Qt::ItemDataRole)role), role == Qt::DisplayRole ?QString::number(section + 1) :QVariant());
}

bool Todos::setHeaderData(int section, Qt::Orientation orientation, const QVariant &value, int role)
{
    if (orientation != Qt::Horizontal) {
        return false;
    }
    m_headerData.insert(qMakePair(section, (Qt::ItemDataRole)role), value);
    return true;
}

bool Todos::setData(const QModelIndex &index, const QVariant &value, int role)
{
    if (index.column() == 0) {
        if (role == Qt::UserRole + 0) {
            if (value.canConvert(qMetaTypeId<bool>())) {
                return setCompleted(index.row(), value.value<bool>());
            }
        }
        if (role == Qt::UserRole + 1) {
            if (value.canConvert(qMetaTypeId<QString>())) {
                return setDescription(index.row(), value.value<QString>());
            }
        }
    }
    return false;
}

extern "C" {
    Todos::Private* todos_new(Todos*, void (*)(Todos*), void (*)(Todos*),
        void (*)(const Todos*),
        void (*)(Todos*),
        void (*)(Todos*),
        void (*)(Todos*, quintptr, quintptr),
        void (*)(Todos*),
        void (*)(Todos*),
        void (*)(Todos*, int, int),
        void (*)(Todos*),
        void (*)(Todos*, int, int, int),
        void (*)(Todos*),
        void (*)(Todos*, int, int),
        void (*)(Todos*));
    void todos_free(Todos::Private*);
    quint64 todos_active_count_get(const Todos::Private*);
    quint64 todos_count_get(const Todos::Private*);
    void todos_add(Todos::Private*, const ushort*, int);
    void todos_clear_completed(Todos::Private*);
    bool todos_remove(Todos::Private*, quint64);
    void todos_set_all(Todos::Private*, bool);
};

Todos::Todos(bool /*owned*/, QObject *parent):
    QAbstractItemModel(parent),
    m_d(nullptr),
    m_ownsPrivate(false)
{
    initHeaderData();
}

Todos::Todos(QObject *parent):
    QAbstractItemModel(parent),
    m_d(todos_new(this,
        todosActiveCountChanged,
        todosCountChanged,
        [](const Todos* o) {
            Q_EMIT o->newDataReady(QModelIndex());
        },
        [](Todos* o) {
            Q_EMIT o->layoutAboutToBeChanged();
        },
        [](Todos* o) {
            o->updatePersistentIndexes();
            Q_EMIT o->layoutChanged();
        },
        [](Todos* o, quintptr first, quintptr last) {
            o->dataChanged(o->createIndex(first, 0, first),
                       o->createIndex(last, 0, last));
        },
        [](Todos* o) {
            o->beginResetModel();
        },
        [](Todos* o) {
            o->endResetModel();
        },
        [](Todos* o, int first, int last) {
            o->beginInsertRows(QModelIndex(), first, last);
        },
        [](Todos* o) {
            o->endInsertRows();
        },
        [](Todos* o, int first, int last, int destination) {
            o->beginMoveRows(QModelIndex(), first, last, QModelIndex(), destination);
        },
        [](Todos* o) {
            o->endMoveRows();
        },
        [](Todos* o, int first, int last) {
            o->beginRemoveRows(QModelIndex(), first, last);
        },
        [](Todos* o) {
            o->endRemoveRows();
        }
)),
    m_ownsPrivate(true)
{
    connect(this, &Todos::newDataReady, this, [this](const QModelIndex& i) {
        this->fetchMore(i);
    }, Qt::QueuedConnection);
    initHeaderData();
}

Todos::~Todos() {
    if (m_ownsPrivate) {
        todos_free(m_d);
    }
}
void Todos::initHeaderData() {
}
quint64 Todos::activeCount() const
{
    return todos_active_count_get(m_d);
}
quint64 Todos::count() const
{
    return todos_count_get(m_d);
}
void Todos::add(const QString& description)
{
    return todos_add(m_d, description.utf16(), description.size());
}
void Todos::clearCompleted()
{
    return todos_clear_completed(m_d);
}
bool Todos::remove(quint64 index)
{
    return todos_remove(m_d, index);
}
void Todos::setAll(bool completed)
{
    return todos_set_all(m_d, completed);
}