//! [5]
QXmlNodeModelIndex QObjectXmlModel::qObjectSibling(const int pos, const QXmlNodeModelIndex &n) const
{
Q_ASSERT(pos == 1 || pos == -1);
Q_ASSERT(asQObject(n));
const QObject *parent = asQObject(n)->parent();
if (parent) {
const QList<QObject *> &children = parent->children();
const int siblingPos = children.indexOf(asQObject(n)) + pos;
if (siblingPos >= 0 && siblingPos < children.count())
return createIndex(children.at(siblingPos));
else
return QXmlNodeModelIndex();
}
else
return QXmlNodeModelIndex();
}
void tst_QXmlItem::copyConstructorFromQXmlNodeModelIndex() const
{
// TODO copy a valid model index.
/* Construct from a null QXmlNodeModelIndex. */
{
const QXmlItem item((QXmlNodeModelIndex()));
QVERIFY(item.isNull());
}
}
QXmlNodeModelIndex QObjectXmlModel::metaObjectSibling(const int pos, const QXmlNodeModelIndex &n) const
{
Q_ASSERT(pos == 1 || pos == -1);
Q_ASSERT(!n.isNull());
const int indexOf = m_allMetaObjects.indexOf(static_cast<const QMetaObject *>(n.internalPointer())) + pos;
if (indexOf >= 0 && indexOf < m_allMetaObjects.count())
return createIndex(const_cast<QMetaObject *>(m_allMetaObjects.at(indexOf)), MetaObject);
else
return QXmlNodeModelIndex();
}
QXmlNodeModelIndex LoadingModel::nextFromSimpleAxis(QAbstractXmlNodeModel::SimpleAxis axis,
const QXmlNodeModelIndex &ni) const
{
const Node *const internal = toInternal(ni);
/* Note that a QXmlNodeModelIndex containing a null pointer is not a null node. */
switch(axis)
{
case Parent:
return internal->parent ? createIndex(internal->parent) : QXmlNodeModelIndex();
case FirstChild:
return internal->firstChild ? createIndex(internal->firstChild) : QXmlNodeModelIndex();
case PreviousSibling:
return internal->precedingSibling ? createIndex(internal->precedingSibling) : QXmlNodeModelIndex();
case NextSibling:
return internal->followingSibling ? createIndex(internal->followingSibling) : QXmlNodeModelIndex();
}
Q_ASSERT(false);
return QXmlNodeModelIndex();
}
QXmlNodeModelIndex LoadingModel::nextFromSimpleAxis(QAbstractXmlNodeModel::SimpleAxis axis,
const QXmlNodeModelIndex &ni) const
{
const Node *const internal = toInternal(ni);
/* Note that a QXmlNodeModelIndex containing a null pointer is not a null node. */
switch(axis)
{
case Parent:
return internal->parent ? createIndex(internal->parent) : QXmlNodeModelIndex();
case FirstChild:
return internal->firstChild ? createIndex(internal->firstChild) : QXmlNodeModelIndex();
case PreviousSibling:
return internal->precedingSibling ? createIndex(internal->precedingSibling) : QXmlNodeModelIndex();
case NextSibling:
return internal->followingSibling ? createIndex(internal->followingSibling) : QXmlNodeModelIndex();
default:
qWarning("%s: unknown axis enum value %d", Q_FUNC_INFO, static_cast<int>(axis));
return QXmlNodeModelIndex();
}
}
void tst_QXmlNodeModelIndex::isNull() const
{
/* Check default value. */
{
const QXmlNodeModelIndex index;
QVERIFY(index.isNull());
}
/* Test default value on a temporary object. */
{
QVERIFY(QXmlNodeModelIndex().isNull());
}
}
void tst_QXmlItem::assignmentOperator() const
{
/* Assign to self. */
{
/* With null value. */
{
QXmlItem item;
item = item;
item = item;
item = item;
item = item;
item = item;
}
/* With the same atomic value. */
{
QXmlItem item(QVariant(QString::fromLatin1("dummy")));
item = item;
item = item;
item = item;
item = item;
item = item;
}
/* With the same node. */
{
// TODO
}
/* With a QXmlItem constructed from a null QVariant. */
{
QXmlItem item((QVariant()));
item = item;
item = item;
item = item;
item = item;
item = item;
}
/* With a QXmlItem constructed from a null QXmlNodeModelIndex. */
{
QXmlItem item((QXmlNodeModelIndex()));
item = item;
item = item;
item = item;
item = item;
item = item;
}
}
}
void tst_QXmlNodeModelIndex::copyConstructor() const
{
/* Check that we can take a const reference. */
{
const QXmlNodeModelIndex index;
const QXmlNodeModelIndex copy(index);
}
/* Take a copy of a temporary. */
{
/* The extra paranthesis silences a warning on win32-msvc. */
const QXmlNodeModelIndex copy((QXmlNodeModelIndex()));
}
}
//! [0]
QXmlNodeModelIndex MyTreeModel::nextFromSimpleAxis(SimpleAxis axis, const QXmlNodeModelIndex &ni) const
{
// Convert the QXmlNodeModelIndex to a value that is specific to what we represent.
const MyValue value = toMyValue(ni);
switch(axis)
{
case Parent:
return toNodeIndex(value.parent());
case FirstChild:
case PreviousSibling:
case NextSibling:
// and so on
;
}
return QXmlNodeModelIndex();
}
void tst_QXmlItem::copyConstructor() const
{
/* Check that we can copy from a const reference. */
{
const QXmlItem item;
const QXmlItem copy(item);
}
/* On a QXmlItem constructed from a null QVariant. */
{
const QXmlItem item((QVariant()));
const QXmlItem copy(item);
}
/* On a QXmlItem constructed from a null QXmlNodeModelIndex. */
{
const QXmlItem item((QXmlNodeModelIndex()));
const QXmlItem copy(item);
}
}
int
main(int argc, char** argv) {
QCoreApplication app(argc, argv);
if (argc != 3) return -1;
QUrl queryUrl = QUrl::fromLocalFile(argv[1]);
const QXmlNamePool namePool;
MsoXmlNodeModel model(namePool, argv[2]);
QXmlNodeModelIndex root = model.root(QXmlNodeModelIndex());
QXmlQuery query(namePool);
query.bindVariable("fileTree", root);
query.setQuery(queryUrl);
QFile out;
out.open(stdout, QIODevice::WriteOnly);
QXmlFormatter serializer(query, &out);
query.evaluateTo(&serializer);
return 0;
}
** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3.0 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** If you have questions regarding the use of this file, please contact ** Nokia at [email protected]. ** $QT_END_LICENSE$ ** ****************************************************************************/ //! [0] myInstance = QXmlNodeModelIndex(); //! [0] //! [1] QFile queryFile(argv[1]); QFile chemistryData(argv[2]); QString moleculeName = argv[3]; QXmlQuery query; query.setQuery(&queryFile, QUrl::fromLocalFile(queryFile.fileName())); ChemistryNodeModel myNodeModel(query.namePool(), chemistryData); QXmlNodeModelIndex startNode = myNodeModel.nodeFor(moleculeName); query.bindVariable("queryRoot", startNode); QFile out;
//! [2]
QXmlNodeModelIndex QObjectXmlModel::nextFromSimpleAxis(SimpleAxis axis, const QXmlNodeModelIndex &n) const
{
switch (toNodeType(n))
{
case IsQObject:
{
switch (axis)
{
case Parent:
return createIndex(asQObject(n)->parent());
case FirstChild:
{
if (!asQObject(n) || asQObject(n)->children().isEmpty())
return QXmlNodeModelIndex();
else
return createIndex(asQObject(n)->children().first());
}
case NextSibling:
return qObjectSibling(1, n);
//! [10]
case PreviousSibling:
{
if (asQObject(n) == m_root)
return createIndex(qint64(0), MetaObjects);
else
return qObjectSibling(-1, n);
}
//! [10]
}
Q_ASSERT(false);
}
//! [7]
case QObjectClassName:
case QObjectProperty:
{
Q_ASSERT(axis == Parent);
return createIndex(asQObject(n));
}
//! [7]
//! [2]
//! [3]
//! [11]
case MetaObjects:
{
switch (axis)
{
case Parent:
return QXmlNodeModelIndex();
case PreviousSibling:
return QXmlNodeModelIndex();
case NextSibling:
return root();
case FirstChild:
{
return createIndex(const_cast<QMetaObject*>(m_allMetaObjects.first()),MetaObject);
}
}
Q_ASSERT(false);
}
//! [11]
case MetaObject:
{
switch (axis)
{
case FirstChild:
return QXmlNodeModelIndex();
case Parent:
return createIndex(qint64(0), MetaObjects);
case PreviousSibling:
return metaObjectSibling(-1, n);
case NextSibling:
return metaObjectSibling(1, n);
}
}
case MetaObjectClassName:
case MetaObjectSuperClass:
{
Q_ASSERT(axis == Parent);
return createIndex(asQObject(n), MetaObject);
}
//! [3]
//! [4]
}
Q_ASSERT(false);
return QXmlNodeModelIndex();
}