Add public role names setter to QStandardItemModel

This allows QStandardItemModel to be usable in QML without requiring
clients to subclass it.

Task-number: QTBUG-15067
Change-Id: I867fcd8137132affdf21f37a9fa293e855a09a13
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>

3 files changed, 31 insertions, 0 deletions

diff --git a/src/widgets/itemviews/qstandarditemmodel.cpp b/src/widgets/itemviews/qstandarditemmodel.cpp
index 0fa82cbd42..112b533f4f 100644
--- a/src/widgets/itemviews/qstandarditemmodel.cpp
+++ b/src/widgets/itemviews/qstandarditemmodel.cpp
@@ -2080,6 +2080,15 @@ QStandardItemModel::~QStandardItemModel()
 }
 
 /*!
+    Sets the item role names to \a roleNames.
+*/
+void QStandardItemModel::setItemRoleNames(const QHash<int,QByteArray> &roleNames)
+{
+    Q_D(QStandardItemModel);
+    d->roleNames = roleNames;
+}
+
+/*!
     Removes all items (including header items) from the model and sets the
     number of rows and columns to zero.
 
diff --git a/src/widgets/itemviews/qstandarditemmodel.h b/src/widgets/itemviews/qstandarditemmodel.h
index 10a44ffe39..e374665f20 100644
--- a/src/widgets/itemviews/qstandarditemmodel.h
+++ b/src/widgets/itemviews/qstandarditemmodel.h
@@ -324,6 +324,8 @@ public:
     QStandardItemModel(int rows, int columns, QObject *parent = 0);
     ~QStandardItemModel();
 
+    void setItemRoleNames(const QHash<int,QByteArray> &roleNames);
+
     QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;
     QModelIndex parent(const QModelIndex &child) const;
 
diff --git a/tests/auto/widgets/itemviews/qstandarditemmodel/tst_qstandarditemmodel.cpp b/tests/auto/widgets/itemviews/qstandarditemmodel/tst_qstandarditemmodel.cpp
index bcabedf89c..1c661f9060 100644
--- a/tests/auto/widgets/itemviews/qstandarditemmodel/tst_qstandarditemmodel.cpp
+++ b/tests/auto/widgets/itemviews/qstandarditemmodel/tst_qstandarditemmodel.cpp
@@ -134,6 +134,8 @@ private slots:
     void treeDragAndDrop();
     void removeRowsAndColumns();
 
+    void itemRoleNames();
+
 private:
     QAbstractItemModel *m_model;
     QPersistentModelIndex persistent;
@@ -1658,6 +1660,24 @@ void tst_QStandardItemModel::removeRowsAndColumns()
     VERIFY_MODEL
 }
 
+void tst_QStandardItemModel::itemRoleNames()
+{
+    QVector<QString> row_list = QString("1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20").split(',').toVector();
+    QVector<QString> col_list = row_list;
+    QStandardItemModel model;
+    for (int c = 0; c < col_list.count(); c++)
+        for (int r = 0; r < row_list.count(); r++)
+            model.setItem(r, c, new QStandardItem(row_list[r] + "x" + col_list[c]));
+    VERIFY_MODEL
+
+    QHash<int, QByteArray> newRoleNames;
+    newRoleNames.insert(Qt::DisplayRole, "Name");
+    newRoleNames.insert(Qt::DecorationRole, "Avatar");
+    model.setItemRoleNames(newRoleNames);
+    QCOMPARE(model.roleNames(), newRoleNames);
+    VERIFY_MODEL
+}
+
 
 QTEST_MAIN(tst_QStandardItemModel)
 #include "tst_qstandarditemmodel.moc"