TreeModel: Add a TreeItem::setData function

Change-Id: Id59c35068cd5a2ba22ccfddd45a0826dd68e9905
Reviewed-by: Christian Stenger <christian.stenger@theqtcompany.com>

src/libs/utils/treemodel.cpp

@@ -662,6 +662,14 @@ QVariant TreeItem::data(int column, int role) const
     return QVariant();
 }
 
+bool TreeItem::setData(int column, const QVariant &data, int role)
+{
+    Q_UNUSED(column);
+    Q_UNUSED(data);
+    Q_UNUSED(role);
+    return false;
+}
+
 Qt::ItemFlags TreeItem::flags(int column) const
 {
     Q_UNUSED(column);
@@ -785,6 +793,15 @@ int TreeModel::columnCount(const QModelIndex &idx) const
     return itemFromIndex(idx)->columnCount();
 }
 
+bool TreeModel::setData(const QModelIndex &idx, const QVariant &data, int role)
+{
+    TreeItem *item = itemFromIndex(idx);
+    bool res = item ? item->setData(idx.column(), data, role) : false;
+    if (res)
+        emit dataChanged(idx, idx);
+    return res;
+}
+
 QVariant TreeModel::data(const QModelIndex &idx, int role) const
 {
     TreeItem *item = itemFromIndex(idx);

src/libs/utils/treemodel.h

@@ -58,6 +58,7 @@ public:
     virtual void populate();
 
     virtual QVariant data(int column, int role) const;
+    virtual bool setData(int column, const QVariant &data, int role);
     virtual Qt::ItemFlags flags(int column) const;
 
     void prependChild(TreeItem *item);
@@ -220,6 +221,7 @@ public:
     int rowCount(const QModelIndex &idx = QModelIndex()) const;
     int columnCount(const QModelIndex &idx) const;
 
+    bool setData(const QModelIndex &idx, const QVariant &data, int role);
     QVariant data(const QModelIndex &idx, int role) const;
     QModelIndex index(int, int, const QModelIndex &idx) const;
     QModelIndex parent(const QModelIndex &idx) const;