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-rw-r--r--doc/src/snippets/stringlistmodel/model.cpp32
1 files changed, 31 insertions, 1 deletions
diff --git a/doc/src/snippets/stringlistmodel/model.cpp b/doc/src/snippets/stringlistmodel/model.cpp
index 76329ddcf..49e0fc7dc 100644
--- a/doc/src/snippets/stringlistmodel/model.cpp
+++ b/doc/src/snippets/stringlistmodel/model.cpp
@@ -59,6 +59,11 @@ int StringListModel::rowCount(const QModelIndex &parent) const
}
//! [0]
+
+#ifdef 0
+// This represents a read-only version of data(), an early stage in the
+// development of the example leading to an editable StringListModel.
+
/*!
Returns an appropriate value for the requested data.
If the view requests an invalid index, an invalid variant is returned.
@@ -66,7 +71,7 @@ int StringListModel::rowCount(const QModelIndex &parent) const
string to be returned.
*/
-//! [1]
+//! [1-data-read-only]
QVariant StringListModel::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
@@ -80,6 +85,31 @@ QVariant StringListModel::data(const QModelIndex &index, int role) const
else
return QVariant();
}
+//! [1-data-read-only]
+#endif
+
+
+/*!
+ Returns an appropriate value for the requested data.
+ If the view requests an invalid index, an invalid variant is returned.
+ Any valid index that corresponds to a string in the list causes that
+ string to be returned.
+*/
+
+//! [1]
+QVariant StringListModel::data(const QModelIndex &index, int role) const
+{
+ if (!index.isValid())
+ return QVariant();
+
+ if (index.row() >= stringList.size())
+ return QVariant();
+
+ if (role == Qt::DisplayRole || role == Qt::EditRole)
+ return stringList.at(index.row());
+ else
+ return QVariant();
+}
//! [1]
/*!