--- a/gui/src/workspace-model.h
+++ b/gui/src/workspace-model.h
@@ -30,72 +30,72 @@
 class tree_item
 {
 public:
-  tree_item(const QList<QVariant> &data, tree_item *parent = 0) {
+  tree_item (const QList<QVariant> &data, tree_item *parent = 0) {
     _parent_item = parent;
     _item_data = data;
   }
 
-  tree_item(QVariant data = QVariant(), tree_item *parent = 0) {
+  tree_item (QVariant data = QVariant(), tree_item *parent = 0) {
     QList<QVariant> variantList;
     variantList << data << QVariant () << QVariant () << QVariant ();
     _parent_item = parent;
     _item_data = variantList;
   }
 
-  ~tree_item() {
-     qDeleteAll(_child_items);
+  ~tree_item () {
+     qDeleteAll (_child_items);
   }
 
-  void insert_child_item(int at, tree_item *item) {
+  void insert_child_item (int at, tree_item *item) {
     item->_parent_item = this;
-    _child_items.insert(at, item);
+    _child_items.insert (at, item);
   }
 
-  void add_child(tree_item *item) {
+  void add_child (tree_item *item) {
     item->_parent_item = this;
-    _child_items.append(item);
+    _child_items.append (item);
   }
 
-  void delete_child_items() {
-      qDeleteAll(_child_items);
-      _child_items.clear();
+  void delete_child_items () {
+      qDeleteAll (_child_items);
+      _child_items.clear ();
   }
 
-  void remove_child(tree_item *item) {
-    _child_items.removeAll(item);
+  void remove_child (tree_item *item) {
+    _child_items.removeAll (item);
   }
 
-  QVariant data(int column) const
+  QVariant data (int column) const
   {
     return _item_data[column];
   }
 
-  void set_data(int column, QVariant data)
+  void set_data (int column, QVariant data)
   {
     _item_data[column] = data;
   }
 
-  tree_item *child(int row) {
+  tree_item *child (int row) {
     return _child_items[row];
   }
 
-  int child_count() const {
+  int child_count () const {
     return _child_items.count();
   }
 
-  int column_count() const
+  int column_count () const
   {
     return _item_data.count();
   }
 
-  int row() const {
+  int row () const {
     if (_parent_item)
-      return _parent_item->_child_items.indexOf(const_cast<tree_item*>(this));
+      return _parent_item->_child_items.indexOf (const_cast<tree_item*>(this));
 
     return 0;
   }
 
-  tree_item *parent()
+  tree_item *parent ()
   {
     return _parent_item;
   }
@@ -118,15 +118,15 @@
   void event_accepted (octave_event *e);
   void event_reject (octave_event *e);
 
-  QVariant data(const QModelIndex &index, int role) const;
-  Qt::ItemFlags flags(const QModelIndex &index) const;
-  QVariant headerData(int section, Qt::Orientation orientation,
-                      int role = Qt::DisplayRole) const;
-  QModelIndex index(int row, int column,
-                    const QModelIndex &parent = QModelIndex()) const;
-  QModelIndex parent(const QModelIndex &index) const;
-  int rowCount(const QModelIndex &parent = QModelIndex()) const;
-  int columnCount(const QModelIndex &parent = QModelIndex()) const;
+  QVariant data (const QModelIndex &index, int role) const;
+  Qt::ItemFlags flags (const QModelIndex &index) const;
+  QVariant headerData (int section, Qt::Orientation orientation,
+                       int role = Qt::DisplayRole) const;
+  QModelIndex index (int row, int column,
+                    const QModelIndex &parent = QModelIndex ()) const;
+  QModelIndex parent (const QModelIndex &index) const;
+  int rowCount (const QModelIndex &parent = QModelIndex ()) const;
+  int columnCount (const QModelIndex &parent = QModelIndex ()) const;
 
   void insert_top_level_item (int at, tree_item *treeItem);
   tree_item *top_level_item (int at);
@@ -135,7 +135,7 @@
   void request_update_workspace ();
 
 signals:
-  void model_changed();
+  void model_changed ();
 
 private:
   /** Timer for periodically updating the workspace model from the current