]> git.saurik.com Git - wxWidgets.git/blobdiff - src/gtk/dataview.cpp
Preserve original menu label for later retrieval
[wxWidgets.git] / src / gtk / dataview.cpp
index 20eccb9d2204e412eaeeeaf581fbb2733e32f35f..e9ad3b983df1b94799348b0f0a4e0be13ab7f050 100644 (file)
@@ -26,6 +26,8 @@
 #include "wx/calctrl.h"
 #include "wx/popupwin.h"
 #include "wx/icon.h"
+#include "wx/list.h"
+#include "wx/listimpl.cpp"
 
 
 #include "wx/gtk/private.h"
 #include <gdk/gdkkeysyms.h>
 
 //-----------------------------------------------------------------------------
-// classes
 //-----------------------------------------------------------------------------
 
+wxDataViewModel *g_model = NULL;
+
+class wxGtkTreeModelNode;
+
+extern "C" {
+typedef struct _GtkWxTreeModel       GtkWxTreeModel;
+}
+
+//-----------------------------------------------------------------------------
+// wxDataViewCtrlInternal
+//-----------------------------------------------------------------------------
+
+WX_DECLARE_LIST(wxDataViewItem, ItemList);
+WX_DEFINE_LIST(ItemList);
+
+class wxDataViewCtrlInternal
+{
+public:
+    wxDataViewCtrlInternal( wxDataViewCtrl *owner, wxDataViewModel *wx_model, GtkWxTreeModel *owner );
+    ~wxDataViewCtrlInternal();
+    
+    gboolean get_iter( GtkTreeIter *iter, GtkTreePath *path );
+    GtkTreePath *get_path( GtkTreeIter *iter);
+    GtkTreePath *get_path_safe( GtkTreeIter *iter);
+    gboolean iter_next( GtkTreeIter *iter );
+    gboolean iter_children( GtkTreeIter *iter, GtkTreeIter *parent);
+    gboolean iter_has_child( GtkTreeIter *iter );
+    gint iter_n_children( GtkTreeIter *iter );
+    gboolean iter_nth_child( GtkTreeIter *iter, GtkTreeIter *parent, gint n );
+    gboolean iter_parent( GtkTreeIter *iter, GtkTreeIter *child );
+    
+    wxDataViewModel* GetDataViewModel() { return m_wx_model; }
+    wxDataViewCtrl* GetOwner()          { return m_owner; }
+    GtkWxTreeModel* GetGtkModel()       { return m_gtk_model; }
+
+    bool ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item );
+    bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item );
+    bool ItemChanged( const wxDataViewItem &item );
+    bool ValueChanged( const wxDataViewItem &item, unsigned int col );
+    bool Cleared();
+    void Resort();
+    
+protected:
+    void InitTree();
+    wxGtkTreeModelNode *FindNode( const wxDataViewItem &item );
+    wxGtkTreeModelNode *FindNode( GtkTreeIter *iter );
+    wxGtkTreeModelNode *FindParentNode( const wxDataViewItem &item );
+    wxGtkTreeModelNode *FindParentNode( GtkTreeIter *iter );
+    void BuildBranch( wxGtkTreeModelNode *branch );
+    
+private:
+    wxGtkTreeModelNode   *m_root;
+    wxDataViewModel      *m_wx_model;
+    GtkWxTreeModel       *m_gtk_model;
+    wxDataViewCtrl       *m_owner;
+};
+
+
 //-----------------------------------------------------------------------------
 // wxGtkTreeModelNode
 //-----------------------------------------------------------------------------
 
-class wxGtkTreeModelNode;
+int LINKAGEMODE wxGtkTreeModelNodeCmp( void *id1, void *id2 );
+
 WX_DEFINE_ARRAY_PTR( wxGtkTreeModelNode*, wxGtkTreeModelNodes );
+WX_DEFINE_SORTED_ARRAY( void* , wxGtkTreeModelChildren );
 
 class wxGtkTreeModelNode
 {
 public:
-    wxGtkTreeModelNode( wxGtkTreeModelNode* parent )
+    wxGtkTreeModelNode( wxGtkTreeModelNode* parent, const wxDataViewItem &item,
+      wxDataViewCtrlInternal *internal )
     { 
         m_parent = parent; 
+        m_item = item;
+        m_internal = internal;
+        g_model = internal->GetDataViewModel();
+        m_children = new wxGtkTreeModelChildren( wxGtkTreeModelNodeCmp );
     }
     
     ~wxGtkTreeModelNode()
     { 
-        size_t count = m_children.GetCount();
+        g_model = m_internal->GetDataViewModel();
+        size_t count = m_children->GetCount();
         size_t i;
         for (i = 0; i < count; i++)
         {
-            wxGtkTreeModelNode *child = m_children[i];
+            wxGtkTreeModelNode *child = m_nodes.Item( i );
             delete child;
         }
+        delete m_children;
     }
 
+    unsigned int AddNode( wxGtkTreeModelNode* child ) 
+        { 
+            g_model = m_internal->GetDataViewModel();
+            m_nodes.Add( child );
+            return m_children->Add( child->GetItem().GetID() );
+        }
+        
+    unsigned int AddLeave( void* id )
+        {
+            g_model = m_internal->GetDataViewModel();
+            return m_children->Add( id );
+        }
+        
+    void DeleteChild( void* id )
+        {
+            g_model = m_internal->GetDataViewModel();
+            size_t pos;
+            size_t count = m_children->GetCount();
+            for (pos = 0; pos < count; pos++)
+            {
+                if (m_children->Item( pos ) == id)
+                {
+                    m_children->RemoveAt( pos );
+                    break;
+                }
+            }
+            count = m_nodes.GetCount();
+            for (pos = 0; pos < count; pos++)
+            {   
+                wxGtkTreeModelNode *node = m_nodes.Item( pos );
+                if (node->GetItem().GetID() == id)
+                {
+                    m_nodes.RemoveAt( pos );
+                    delete node;
+                    break;
+                }
+            }
+            
+        }
+        
     wxGtkTreeModelNode* GetParent() 
         { return m_parent; }
-    wxGtkTreeModelNodes &GetChildren() 
-        { return m_children; }
-    wxGtkTreeModelNode* GetNthChild( unsigned int n ) 
-        { return m_children.Item( n ); }
-    void Insert( wxGtkTreeModelNode* child, unsigned int n) 
-        { m_children.Insert( child, n); }
-    void Append( wxGtkTreeModelNode* child ) 
-        { m_children.Add( child ); }
-
-    unsigned int GetChildCount() { return m_children.GetCount(); }
+    wxGtkTreeModelNodes &GetNodes() 
+        { return m_nodes; }
+    wxGtkTreeModelChildren &GetChildren() 
+        { return *m_children; }
+        
+    unsigned int GetChildCount() { return m_children->GetCount(); }
+    unsigned int GetNodesCount() { return m_nodes.GetCount(); }
 
     wxDataViewItem &GetItem() { return m_item; }
-    void SetItem( wxDataViewItem& item ) { m_item = item; }
-
-    bool HasChildren() { return m_hasChildren; }
-    void SetHasChildren( bool has ) { m_hasChildren = has; }
+    wxDataViewCtrlInternal *GetInternal() { return m_internal; }
+    
+    void Resort();
     
 private:
-    wxGtkTreeModelNode  *m_parent;
-    wxGtkTreeModelNodes  m_children; 
-    wxDataViewItem       m_item; 
-    bool                 m_hasChildren;
+    wxGtkTreeModelNode         *m_parent;
+    wxGtkTreeModelNodes         m_nodes;
+    wxGtkTreeModelChildren     *m_children;
+    wxDataViewItem              m_item; 
+    wxDataViewCtrlInternal     *m_internal;
 };
 
 
-extern "C" {
-typedef struct _GtkWxTreeModel       GtkWxTreeModel;
-}
-
-class wxGtkTreeModel
+int LINKAGEMODE wxGtkTreeModelNodeCmp( void* id1, void* id2 )
 {
-public:
-    wxGtkTreeModel( wxDataViewModel *wx_model, GtkWxTreeModel *gtk_model )
-    { 
-        m_wx_model = wx_model; 
-        m_gtk_model = gtk_model; 
-        m_root = NULL; 
-        InitTree();
-    }
-    
-    ~wxGtkTreeModel();
-    
-    gboolean get_iter( GtkTreeIter *iter, GtkTreePath *path );
-    GtkTreePath *get_path( GtkTreeIter *iter);
-    gboolean iter_next( GtkTreeIter *iter );
-    gboolean iter_children( GtkTreeIter *iter, GtkTreeIter *parent);
-    gboolean iter_has_child( GtkTreeIter *iter );
-    gint iter_n_children( GtkTreeIter *iter );
-    gboolean iter_nth_child( GtkTreeIter *iter, GtkTreeIter *parent, gint n );
-    gboolean iter_parent( GtkTreeIter *iter, GtkTreeIter *child );
-    
-protected:
-    void InitTree();
-    wxGtkTreeModelNode *FindNode( GtkTreeIter *iter );
-    
-private:
-    wxGtkTreeModelNode   *m_root;
-    wxDataViewModel      *m_wx_model;
-    GtkWxTreeModel       *m_gtk_model;
-};
+    return g_model->Compare( id1, id2 );
+}
 
 //-----------------------------------------------------------------------------
 // data
@@ -160,12 +234,7 @@ struct _GtkWxTreeModel
 
   /*< private >*/
   gint stamp;
-  wxDataViewModel *model;
-  
-  gint sort_column_id;
-  GtkSortType order;
-  GtkTreeIterCompareFunc default_sort_func;
-  GtkTreeIterCompareFunc sort_func;
+  wxDataViewCtrlInternal *internal;
 };
 
 struct _GtkWxTreeModelClass
@@ -188,6 +257,8 @@ static gboolean     wxgtk_tree_model_get_iter        (GtkTreeModel      *tree_mo
                                                       GtkTreePath       *path);
 static GtkTreePath *wxgtk_tree_model_get_path        (GtkTreeModel      *tree_model,
                                                       GtkTreeIter       *iter);
+static GtkTreePath *wxgtk_tree_model_get_path_safe   (GtkTreeModel      *tree_model,
+                                                      GtkTreeIter       *iter);
 static void         wxgtk_tree_model_get_value       (GtkTreeModel      *tree_model,
                                                       GtkTreeIter       *iter,
                                                       gint               column,
@@ -324,22 +395,13 @@ wxgtk_tree_model_sortable_init (GtkTreeSortableIface *iface)
 static void
 wxgtk_tree_model_init (GtkWxTreeModel *tree_model)
 {
-    tree_model->model = NULL;
+    tree_model->internal = NULL;
     tree_model->stamp = g_random_int();
-    tree_model->sort_column_id = -2;
-    tree_model->order = GTK_SORT_ASCENDING;
-    tree_model->sort_func = NULL;
-    tree_model->default_sort_func = NULL;
 }
 
 static void
 wxgtk_tree_model_finalize (GObject *object)
 {
-    /* GtkWxTreeModel *tree_model = GTK_WX_LIST_STORE (object); */
-
-    /* we need to sort out, which class deletes what */
-    /* delete tree_model->model; */
-
     /* must chain up */
     (* list_parent_class->finalize) (object);
 }
@@ -365,7 +427,7 @@ wxgtk_tree_model_get_n_columns (GtkTreeModel *tree_model)
     GtkWxTreeModel *wxtree_model = (GtkWxTreeModel *) tree_model;
     g_return_val_if_fail (GTK_IS_WX_TREE_MODEL (wxtree_model), 0);
 
-    return wxtree_model->model->GetColumnCount();
+    return wxtree_model->internal->GetDataViewModel()->GetColumnCount();
 }
 
 static GType
@@ -377,7 +439,7 @@ wxgtk_tree_model_get_column_type (GtkTreeModel *tree_model,
 
     GType gtype = G_TYPE_INVALID;
 
-    wxString wxtype = wxtree_model->model->GetColumnType( (unsigned int) index );
+    wxString wxtype = wxtree_model->internal->GetDataViewModel()->GetColumnType( (unsigned int) index );
 
     if (wxtype == wxT("string"))
         gtype = G_TYPE_STRING;
@@ -398,26 +460,7 @@ wxgtk_tree_model_get_iter (GtkTreeModel *tree_model,
     g_return_val_if_fail (GTK_IS_WX_TREE_MODEL (wxtree_model), FALSE);
     g_return_val_if_fail (gtk_tree_path_get_depth (path) > 0, FALSE);
 
-    wxDataViewModel *model = wxtree_model->model;
-    
-    int depth = gtk_tree_path_get_depth( path );
-
-    wxDataViewItem item;
-
-    int i;
-    for (i = 0; i < depth; i++)    
-    {
-        gint pos = gtk_tree_path_get_indices (path)[i];
-        item = model->GetNthChild( item, (unsigned int) pos );
-
-        if (!item.IsOk())
-            return FALSE;
-    }
-
-    iter->stamp = wxtree_model->stamp;
-    iter->user_data = (gpointer) item.GetID();
-
-    return TRUE;
+    return wxtree_model->internal->get_iter( iter, path );
 }
 
 static GtkTreePath *
@@ -428,37 +471,18 @@ wxgtk_tree_model_get_path (GtkTreeModel *tree_model,
     g_return_val_if_fail (GTK_IS_WX_TREE_MODEL (wxtree_model), NULL);
     g_return_val_if_fail (iter->stamp == GTK_WX_TREE_MODEL (wxtree_model)->stamp, NULL);
 
-    GtkTreePath *retval = gtk_tree_path_new ();
-    wxDataViewItem item( (wxUint32) iter->user_data );
-    
-    wxDataViewModel *model = wxtree_model->model;
-    
-    while (item.IsOk())
-    {
-        int n = 0;
-        wxDataViewItem parent = model->GetParent( item );
-        
-        if (!parent.IsOk())
-            wxPrintf( wxT("wrong parent\n") );
-            
-        wxDataViewItem node = model->GetFirstChild( parent );
-        
-        while (node.GetID() != item.GetID())
-        {
-            node = model->GetNextSibling( node );
-            
-            if (!node.IsOk())
-                wxPrintf( wxT("wrong node\n") );
-            
-            n++;
-        }
-
-        gtk_tree_path_prepend_index( retval, n );
+    return wxtree_model->internal->get_path( iter );
+}
 
-        item = model->GetParent( item );
-    }
+static GtkTreePath *
+wxgtk_tree_model_get_path_safe (GtkTreeModel *tree_model,
+                                GtkTreeIter  *iter)
+{
+    GtkWxTreeModel *wxtree_model = (GtkWxTreeModel *) tree_model;
+    g_return_val_if_fail (GTK_IS_WX_TREE_MODEL (wxtree_model), NULL);
+    g_return_val_if_fail (iter->stamp == GTK_WX_TREE_MODEL (wxtree_model)->stamp, NULL);
 
-    return retval;
+    return wxtree_model->internal->get_path_safe( iter );
 }
 
 static void
@@ -470,13 +494,13 @@ wxgtk_tree_model_get_value (GtkTreeModel *tree_model,
     GtkWxTreeModel *wxtree_model = (GtkWxTreeModel *) tree_model;
     g_return_if_fail (GTK_IS_WX_TREE_MODEL (wxtree_model) );
 
-    wxDataViewModel *model = wxtree_model->model;
+    wxDataViewModel *model = wxtree_model->internal->GetDataViewModel();
     wxString mtype = model->GetColumnType( (unsigned int) column );
     if (mtype == wxT("string"))
     {
         wxVariant variant;
         g_value_init( value, G_TYPE_STRING );
-        wxDataViewItem item( (wxUint32) iter->user_data );
+        wxDataViewItem item( (void*) iter->user_data );
         model->GetValue( variant, item, (unsigned int) column );
 
         g_value_set_string( value, variant.GetString().utf8_str() );
@@ -493,19 +517,9 @@ wxgtk_tree_model_iter_next (GtkTreeModel  *tree_model,
 {
     GtkWxTreeModel *wxtree_model = (GtkWxTreeModel *) tree_model;
     g_return_val_if_fail (GTK_IS_WX_TREE_MODEL (wxtree_model), FALSE);
-
     g_return_val_if_fail (wxtree_model->stamp == iter->stamp, FALSE);
 
-    wxDataViewModel *model = wxtree_model->model;
-
-    wxDataViewItem item( (wxUint32) iter->user_data );
-    item = model->GetNextSibling( item );
-    if (!item.IsOk())
-        return FALSE;
-
-    iter->user_data = (gpointer) item.GetID();
-
-    return TRUE;
+    return wxtree_model->internal->iter_next( iter );
 }
 
 static gboolean
@@ -515,20 +529,9 @@ wxgtk_tree_model_iter_children (GtkTreeModel *tree_model,
 {
     GtkWxTreeModel *wxtree_model = (GtkWxTreeModel *) tree_model;
     g_return_val_if_fail (GTK_IS_WX_TREE_MODEL (wxtree_model), FALSE);
-
     g_return_val_if_fail (wxtree_model->stamp == parent->stamp, FALSE);
-    
-    wxDataViewModel *model = wxtree_model->model;
-    
-    wxDataViewItem item( (wxUint32) parent->user_data );
-    item = model->GetFirstChild( item );
-    if (!item.IsOk())
-        return FALSE;
 
-    iter->stamp = wxtree_model->stamp;
-    iter->user_data = (gpointer) item.GetID();
-
-    return TRUE;
+    return wxtree_model->internal->iter_children( iter, parent );
 }
 
 static gboolean
@@ -537,14 +540,9 @@ wxgtk_tree_model_iter_has_child (GtkTreeModel *tree_model,
 {
     GtkWxTreeModel *wxtree_model = (GtkWxTreeModel *) tree_model;
     g_return_val_if_fail (GTK_IS_WX_TREE_MODEL (wxtree_model), FALSE);
-
     g_return_val_if_fail (wxtree_model->stamp == iter->stamp, FALSE);
-    
-    wxDataViewModel *model = wxtree_model->model;
-    
-    wxDataViewItem item( (wxUint32) iter->user_data );
-    
-    return model->HasChildren( item );
+
+    return wxtree_model->internal->iter_has_child( iter );
 }
 
 static gint
@@ -553,14 +551,9 @@ wxgtk_tree_model_iter_n_children (GtkTreeModel *tree_model,
 {
     GtkWxTreeModel *wxtree_model = (GtkWxTreeModel *) tree_model;
     g_return_val_if_fail (GTK_IS_WX_TREE_MODEL (wxtree_model), FALSE);
-
     g_return_val_if_fail (wxtree_model->stamp == iter->stamp, 0);
-    
-    wxDataViewModel *model = wxtree_model->model;
-    
-    wxDataViewItem item( (wxUint32) iter->user_data );
-    
-    return model->GetChildCount( item );
+
+    return wxtree_model->internal->iter_n_children( iter );
 }
 
 static gboolean
@@ -572,34 +565,7 @@ wxgtk_tree_model_iter_nth_child (GtkTreeModel *tree_model,
     GtkWxTreeModel *wxtree_model = (GtkWxTreeModel *) tree_model;
     g_return_val_if_fail (GTK_IS_WX_TREE_MODEL (wxtree_model), FALSE);
 
-    wxDataViewModel *model = wxtree_model->model;
-    
-    if (!parent)
-    {
-        wxDataViewItem item;
-        item = model->GetNthChild( item, n );
-        
-        if (!item.IsOk())
-            return FALSE;
-    
-        iter->stamp = wxtree_model->stamp;
-        iter->user_data = (gpointer) item.GetID();
-    }
-    else
-    {
-        g_return_val_if_fail (wxtree_model->stamp == parent->stamp, FALSE);
-    
-        wxDataViewItem item( (wxUint32) parent->user_data );
-        item = model->GetNthChild( item, n );
-    
-        if (!item.IsOk())
-            return FALSE;
-    
-        iter->stamp = wxtree_model->stamp;
-        iter->user_data = (gpointer) item.GetID();
-    }
-
-    return TRUE;
+    return wxtree_model->internal->iter_nth_child( iter, parent, n );
 }
 
 static gboolean
@@ -609,21 +575,9 @@ wxgtk_tree_model_iter_parent (GtkTreeModel *tree_model,
 {
     GtkWxTreeModel *wxtree_model = (GtkWxTreeModel *) tree_model;
     g_return_val_if_fail (GTK_IS_WX_TREE_MODEL (wxtree_model), FALSE);
-
     g_return_val_if_fail (wxtree_model->stamp == child->stamp, FALSE);
     
-    wxDataViewModel *model = wxtree_model->model;
-    
-    wxDataViewItem item( (wxUint32) child->user_data );
-    item = model->GetParent( item );
-    
-    if (!item.IsOk())
-        return FALSE;
-    
-    iter->stamp = wxtree_model->stamp;
-    iter->user_data = (gpointer) item.GetID();
-
-    return TRUE;
+    return wxtree_model->internal->iter_parent( iter, child );
 }
 
 /* sortable */
@@ -635,14 +589,17 @@ gboolean wxgtk_tree_model_get_sort_column_id    (GtkTreeSortable        *sortabl
 
     g_return_val_if_fail (GTK_IS_WX_TREE_MODEL (sortable), FALSE);
 
-    if (tree_model->sort_column_id == GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID)
-        return FALSE;
-
     if (sort_column_id)
-        *sort_column_id = tree_model->sort_column_id;
+        *sort_column_id = tree_model->internal->GetDataViewModel()->GetSortingColumn();
         
     if (order)
-        *order = tree_model->order;
+    {
+        bool ascending = tree_model->internal->GetDataViewModel()->GetSortOrderAscending();
+        if (ascending)
+            *order = GTK_SORT_ASCENDING;
+        else
+            *order = GTK_SORT_DESCENDING;
+    }
         
     return TRUE;
 }
@@ -652,25 +609,23 @@ void     wxgtk_tree_model_set_sort_column_id    (GtkTreeSortable        *sortabl
                                                      GtkSortType               order)
 {
     GtkWxTreeModel *tree_model = (GtkWxTreeModel *) sortable;
-
     g_return_if_fail (GTK_IS_WX_TREE_MODEL (sortable) );
 
-    if ((tree_model->sort_column_id == sort_column_id) &&
-        (tree_model->order == order))
-    return;
-
-    if (sort_column_id == GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID)
-    {
-        g_return_if_fail (tree_model->default_sort_func != NULL);
-    }
-
-    tree_model->sort_column_id = sort_column_id;
-    tree_model->order = order;
+    bool ascending = TRUE;
+    if (order != GTK_SORT_ASCENDING)
+        ascending = FALSE;
 
+    if ((sort_column_id == (gint) tree_model->internal->GetDataViewModel()->GetSortingColumn()) &&
+        (ascending == tree_model->internal->GetDataViewModel()->GetSortOrderAscending()))
+        return;
+    
+    tree_model->internal->GetDataViewModel()->SetSortingColumn( sort_column_id );
+    
+    tree_model->internal->GetDataViewModel()->SetSortOrderAscending( ascending );
+    
     gtk_tree_sortable_sort_column_changed (sortable);
-
-    wxPrintf( "wxgtk_tree_model_set_column_id, sort_column_id = %d, order = %d\n", sort_column_id, (int)order );
-    // sort
+    
+    tree_model->internal->GetDataViewModel()->Resort();
 }
 
 void     wxgtk_tree_model_set_sort_func         (GtkTreeSortable        *sortable,
@@ -679,15 +634,8 @@ void     wxgtk_tree_model_set_sort_func         (GtkTreeSortable        *sortabl
                                                      gpointer                  data,
                                                      GtkDestroyNotify          destroy)
 {
-    GtkWxTreeModel *tree_model = (GtkWxTreeModel *) sortable;
-
     g_return_if_fail (GTK_IS_WX_TREE_MODEL (sortable) );
     g_return_if_fail (func != NULL);
-
-    tree_model->sort_func = func;
-    
-    wxPrintf( "wxgtk_tree_model_set_sort_func, sort_column_id = %d\n", sort_column_id );
-    // sort
 }
 
 void     wxgtk_tree_model_set_default_sort_func (GtkTreeSortable        *sortable,
@@ -695,14 +643,9 @@ void     wxgtk_tree_model_set_default_sort_func (GtkTreeSortable        *sortabl
                                                      gpointer                  data,
                                                      GtkDestroyNotify          destroy)
 {
-    GtkWxTreeModel *tree_model = (GtkWxTreeModel *) sortable;
-
     g_return_if_fail (GTK_IS_WX_TREE_MODEL (sortable) );
-
     g_return_if_fail (func != NULL);
 
-    tree_model->default_sort_func = func;
-    
     wxPrintf( "wxgtk_tree_model_set_default_sort_func\n" );
 }
 
@@ -883,13 +826,13 @@ static GtkCellEditable *gtk_wx_cell_renderer_start_editing(
 //    wxRect renderrect( rect.x, rect.y, rect.width, rect.height );
     wxRect renderrect( cell_area->x, cell_area->y, cell_area->width, cell_area->height );
 
-    // wxDataViewListModel *model = cell->GetOwner()->GetOwner()->GetModel();
-
     GtkTreePath *treepath = gtk_tree_path_new_from_string( path );
-    unsigned int model_row = (unsigned int)gtk_tree_path_get_indices (treepath)[0];
+    GtkTreeIter iter;
+    cell->GetOwner()->GetOwner()->GtkGetInternal()->get_iter( &iter, treepath );
+    wxDataViewItem item( (void*) iter.user_data );
     gtk_tree_path_free( treepath );
 
-    cell->StartEditing( model_row, renderrect );
+    cell->StartEditing( item, renderrect );
 
     return NULL;
 }
@@ -1020,7 +963,8 @@ gtk_wx_cell_renderer_activate(
     wxDataViewModel *model = cell->GetOwner()->GetOwner()->GetModel();
 
     GtkTreePath *treepath = gtk_tree_path_new_from_string( path );
-    unsigned int model_row = (unsigned int)gtk_tree_path_get_indices (treepath)[0];
+    // TODO
+    wxDataViewItem item;
     gtk_tree_path_free( treepath );
 
     unsigned int model_col = cell->GetOwner()->GetModelColumn();
@@ -1030,7 +974,7 @@ gtk_wx_cell_renderer_activate(
         bool ret = false;
 
         // activated by <ENTER>
-        if (cell->Activate( renderrect, model, model_col, model_row ))
+        if (cell->Activate( renderrect, model, item, model_col ))
                     ret = true;
 
         return ret;
@@ -1044,16 +988,16 @@ gtk_wx_cell_renderer_activate(
         bool ret = false;
         if (button_event->button == 1)
         {
-            if (cell->LeftClick( pt, renderrect, model, model_col, model_row ))
+            if (cell->LeftClick( pt, renderrect, model, item, model_col ))
                 ret = true;
             // TODO: query system double-click time
             if (button_event->time - wxrenderer->last_click < 400)
-                if (cell->Activate( renderrect, model, model_col, model_row ))
+                if (cell->Activate( renderrect, model, item, model_col ))
                     ret = true;
         }
         if (button_event->button == 3)
         {
-            if (cell->RightClick( pt, renderrect, model, model_col, model_row ))
+            if (cell->RightClick( pt, renderrect, model, item, model_col ))
                 ret = true;
         }
 
@@ -1078,10 +1022,11 @@ public:
     ~wxGtkDataViewModelNotifier();
 
     virtual bool ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item );
-    virtual bool ItemDeleted( const wxDataViewItem &item );
+    virtual bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item );
     virtual bool ItemChanged( const wxDataViewItem &item );
     virtual bool ValueChanged( const wxDataViewItem &item, unsigned int col );
     virtual bool Cleared();
+    virtual void Resort();
 
     GtkWxTreeModel      *m_wxgtk_model;
     wxDataViewModel     *m_wx_model;
@@ -1109,6 +1054,8 @@ wxGtkDataViewModelNotifier::~wxGtkDataViewModelNotifier()
 
 bool wxGtkDataViewModelNotifier::ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item )
 {
+    m_owner->GtkGetInternal()->ItemAdded( parent, item );
+
     GtkTreeIter iter;
     iter.stamp = m_wxgtk_model->stamp;
     iter.user_data = (gpointer) item.GetID();
@@ -1122,21 +1069,28 @@ bool wxGtkDataViewModelNotifier::ItemAdded( const wxDataViewItem &parent, const
     return true;
 }
 
-bool wxGtkDataViewModelNotifier::ItemDeleted( const wxDataViewItem &item )
+bool wxGtkDataViewModelNotifier::ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
 {
     GtkTreeIter iter;
     iter.stamp = m_wxgtk_model->stamp;
     iter.user_data = (gpointer) item.GetID();
 
-    GtkTreePath *path = wxgtk_tree_model_get_path( 
+    GtkTreePath *path = wxgtk_tree_model_get_path_safe
         GTK_TREE_MODEL(m_wxgtk_model), &iter );
     gtk_tree_model_row_deleted(
         GTK_TREE_MODEL(m_wxgtk_model), path );
     gtk_tree_path_free (path);
 
+    m_owner->GtkGetInternal()->ItemDeleted( parent, item );
+    
     return true;
 }
 
+void wxGtkDataViewModelNotifier::Resort()
+{
+    m_owner->GtkGetInternal()->Resort();
+}
+
 bool wxGtkDataViewModelNotifier::ItemChanged( const wxDataViewItem &item )
 {
     GtkTreeIter iter;
@@ -1149,6 +1103,8 @@ bool wxGtkDataViewModelNotifier::ItemChanged( const wxDataViewItem &item )
         GTK_TREE_MODEL(m_wxgtk_model), path, &iter );
     gtk_tree_path_free (path);
 
+    m_owner->GtkGetInternal()->ItemChanged( item );
+    
     return true;
 }
 
@@ -1182,14 +1138,22 @@ bool wxGtkDataViewModelNotifier::ValueChanged( const wxDataViewItem &item, unsig
             // Redraw
             gtk_widget_queue_draw_area( GTK_WIDGET(widget),
                 cell_area.x - xdiff, ydiff + cell_area.y, cell_area.width, cell_area.height );
+                
+            m_owner->GtkGetInternal()->ValueChanged( item, model_col );
+            
+            return true;
         }
     }
 
-    return true;
+    return false;
 }
 
 bool wxGtkDataViewModelNotifier::Cleared()
 {
+    // TODO: delete everything
+
+    m_owner->GtkGetInternal()->Cleared();
+    
     return false;
 }
 
@@ -1345,13 +1309,15 @@ static void wxGtkTextRendererEditedCallback( GtkCellRendererText *renderer,
     wxDataViewModel *model = cell->GetOwner()->GetOwner()->GetModel();
 
     GtkTreePath *path = gtk_tree_path_new_from_string( arg1 );
-    unsigned int model_row = (unsigned int)gtk_tree_path_get_indices (path)[0];
+    GtkTreeIter iter;
+    cell->GetOwner()->GetOwner()->GtkGetInternal()->get_iter( &iter, path );
+    wxDataViewItem item( (void*) iter.user_data );;
     gtk_tree_path_free( path );
 
     unsigned int model_col = cell->GetOwner()->GetModelColumn();
 
-    model->SetValue( value, model_col, model_row );
-    model->ValueChanged( model_col, model_row );
+    model->SetValue( value, item, model_col );
+    model->ValueChanged( item, model_col );
 }
 
 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewRenderer)
@@ -1517,13 +1483,15 @@ static void wxGtkToggleRendererToggledCallback( GtkCellRendererToggle *renderer,
     wxDataViewModel *model = cell->GetOwner()->GetOwner()->GetModel();
 
     GtkTreePath *gtk_path = gtk_tree_path_new_from_string( path );
-    unsigned int model_row = (unsigned int)gtk_tree_path_get_indices (gtk_path)[0];
+    GtkTreeIter iter;
+    cell->GetOwner()->GetOwner()->GtkGetInternal()->get_iter( &iter, gtk_path );
+    wxDataViewItem item( (void*) iter.user_data );;
     gtk_tree_path_free( gtk_path );
 
     unsigned int model_col = cell->GetOwner()->GetModelColumn();
 
-    model->SetValue( value, model_col, model_row );
-    model->ValueChanged( model_col, model_row );
+    model->SetValue( value, item, model_col );
+    model->ValueChanged( item, model_col );
 }
 
 IMPLEMENT_CLASS(wxDataViewToggleRenderer, wxDataViewRenderer)
@@ -1897,10 +1865,10 @@ static void wxGtkTreeCellDataFunc( GtkTreeViewColumn *column,
 
     wxDataViewRenderer *cell = (wxDataViewRenderer*) data;
 
-    wxDataViewItem item( (wxUint32) iter->user_data );
+    wxDataViewItem item( (void*) iter->user_data );
 
     wxVariant value;
-    tree_model->model->GetValue( value, item, cell->GetOwner()->GetModelColumn() );
+    tree_model->internal->GetDataViewModel()->GetValue( value, item, cell->GetOwner()->GetModelColumn() );
 
     if (value.GetType() != cell->GetVariantType())
         wxLogError( wxT("Wrong type, required: %s but: %s"),
@@ -2178,6 +2146,558 @@ void wxDataViewColumn::SetWidth( int width )
 }
 
 
+//-----------------------------------------------------------------------------
+// wxGtkTreeModelNode
+//-----------------------------------------------------------------------------
+
+void wxGtkTreeModelNode::Resort()
+{
+    g_model = m_internal->GetDataViewModel();
+    
+    size_t child_count = GetChildCount();
+    if (child_count == 0)
+        return;
+
+    size_t node_count = GetNodesCount();
+
+    if (child_count == 1)
+    {
+        if (node_count == 1)
+        {
+            wxGtkTreeModelNode *node = m_nodes.Item( 0 );
+            node->Resort();
+        }
+        return;
+    }
+
+    wxGtkTreeModelChildren *new_array = new wxGtkTreeModelChildren( wxGtkTreeModelNodeCmp );
+
+    size_t pos;
+    for (pos = 0; pos < child_count; pos++)
+        new_array->Add( m_children->Item( pos ) );
+
+    gint *new_order = new gint[child_count];
+    
+    for (pos = 0; pos < child_count; pos++)
+    {
+        void *id = new_array->Item( pos );
+        size_t old_pos;
+        for (old_pos = 0; old_pos < child_count; old_pos++)
+        {
+            if (id == m_children->Item(old_pos))
+            {
+                new_order[pos] = old_pos;
+                break;
+            }
+        }
+    }
+        
+//    for (pos = 0; pos < count; pos++)
+//        m_children->Clear();
+    delete m_children;
+    
+    m_children = new_array;
+    
+    GtkTreeModel *gtk_tree_model = GTK_TREE_MODEL( m_internal->GetGtkModel() );
+
+    GtkTreePath *path = gtk_tree_path_new ();
+    wxGtkTreeModelNode *parent = GetParent();
+    void *id = GetItem().GetID();
+
+    while (parent)
+    {
+        int pos = parent->GetChildren().Index( id );
+        gtk_tree_path_prepend_index( path, pos );
+        id = parent->GetItem().GetID();
+        parent = parent->GetParent();
+    }
+    
+    GtkTreeIter iter;
+    iter.user_data = id;
+    iter.stamp = m_internal->GetGtkModel()->stamp;
+    gtk_tree_model_rows_reordered( gtk_tree_model, path, &iter, new_order );
+    
+    gtk_tree_path_free (path);
+    
+    delete [] new_order;
+    
+    for (pos = 0; pos < node_count; pos++)
+    {
+        wxGtkTreeModelNode *node = m_nodes.Item( pos );
+        node->Resort();
+    }
+}
+
+//-----------------------------------------------------------------------------
+// wxDataViewCtrlInternal
+//-----------------------------------------------------------------------------
+
+wxDataViewCtrlInternal::wxDataViewCtrlInternal( wxDataViewCtrl *owner, 
+    wxDataViewModel *wx_model, GtkWxTreeModel *gtk_model )
+{ 
+    m_owner = owner;
+    m_wx_model = wx_model; 
+    m_gtk_model = gtk_model; 
+    m_root = NULL; 
+    InitTree();
+}
+    
+wxDataViewCtrlInternal::~wxDataViewCtrlInternal()
+{
+    g_object_unref( m_gtk_model );
+}
+    
+void wxDataViewCtrlInternal::InitTree()
+{
+    wxDataViewItem item;
+    m_root = new wxGtkTreeModelNode( NULL, item, this );
+
+    BuildBranch( m_root );
+}
+
+void wxDataViewCtrlInternal::BuildBranch( wxGtkTreeModelNode *node )
+{
+    if (node->GetChildCount() == 0)
+    {
+        wxDataViewItem child = m_wx_model->GetFirstChild( node->GetItem() );
+        while (child.IsOk())
+        {
+            if (m_wx_model->IsContainer( child ))
+                node->AddNode( new wxGtkTreeModelNode( node, child, this ) );
+            else
+                node->AddLeave( child.GetID() );
+    
+            // Don't send any events here
+    
+            child = m_wx_model->GetNextSibling( child );
+        }
+    }
+}
+
+void wxDataViewCtrlInternal::Resort()
+{
+    m_root->Resort();
+}
+
+bool wxDataViewCtrlInternal::ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item )
+{
+    wxGtkTreeModelNode *parent_node = FindNode( parent );
+    if (m_wx_model->IsContainer( item ))
+        parent_node->AddNode( new wxGtkTreeModelNode( parent_node, item, this ) );
+    else
+        parent_node->AddLeave( item.GetID() );
+        
+    wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_MODEL_ITEM_ADDED, m_owner->GetId() );
+    event.SetEventObject( m_owner );
+    event.SetModel( m_owner->GetModel() );
+    event.SetItem( item );
+    m_owner->GetEventHandler()->ProcessEvent( event );
+
+    return true;
+}
+
+bool wxDataViewCtrlInternal::ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
+{
+    wxGtkTreeModelNode *parent_node = FindNode( parent );
+    parent_node->DeleteChild( item.GetID() );
+    
+    wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_MODEL_ITEM_DELETED, m_owner->GetId() );
+    event.SetEventObject( m_owner );
+    event.SetModel( m_owner->GetModel() );
+    event.SetItem( item );
+    m_owner->GetEventHandler()->ProcessEvent( event );
+
+    return true;
+}
+
+bool wxDataViewCtrlInternal::ItemChanged( const wxDataViewItem &item )
+{
+    wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_MODEL_ITEM_CHANGED, m_owner->GetId() );
+    event.SetEventObject( m_owner );
+    event.SetModel( m_owner->GetModel() );
+    event.SetItem( item );
+    m_owner->GetEventHandler()->ProcessEvent( event );
+    
+    return true;
+}
+
+bool wxDataViewCtrlInternal::ValueChanged( const wxDataViewItem &item, unsigned int col )
+{
+    wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_MODEL_VALUE_CHANGED, m_owner->GetId() );
+    event.SetEventObject( m_owner );
+    event.SetModel( m_owner->GetModel() );
+    event.SetColumn( col );
+    event.SetItem( item );
+    m_owner->GetEventHandler()->ProcessEvent( event );
+    
+    return true;
+}
+
+bool wxDataViewCtrlInternal::Cleared()
+{
+    wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_MODEL_CLEARED, m_owner->GetId() );
+    event.SetEventObject( m_owner );
+    event.SetModel( m_owner->GetModel() );
+    m_owner->GetEventHandler()->ProcessEvent( event );
+    
+    return true;
+}
+
+gboolean wxDataViewCtrlInternal::get_iter( GtkTreeIter *iter, GtkTreePath *path )
+{
+    g_model = m_wx_model;
+    
+    int depth = gtk_tree_path_get_depth( path );
+
+    wxGtkTreeModelNode *node = m_root;
+
+    int i;
+    for (i = 0; i < depth; i++)    
+    {
+        BuildBranch( node );
+        
+        gint pos = gtk_tree_path_get_indices (path)[i];
+        if (pos < 0) return FALSE;
+        if ((size_t)pos >= node->GetChildCount()) return FALSE;
+        
+        void* id = node->GetChildren().Item( (size_t) pos );
+        
+        if (i == depth-1)
+        {
+            iter->stamp = m_gtk_model->stamp;
+            iter->user_data = id;
+            return TRUE;
+        }
+
+        size_t count = node->GetNodes().GetCount();
+        size_t pos2;
+        for (pos2 = 0; pos2 < count; pos2++)
+        {
+            wxGtkTreeModelNode *child_node = node->GetNodes().Item( pos2 );
+            if (child_node->GetItem().GetID() == id)
+            {
+                node = child_node;
+                break;
+            }
+        }        
+    }
+
+    return FALSE;
+}
+
+GtkTreePath *wxDataViewCtrlInternal::get_path( GtkTreeIter *iter )
+{
+    g_model = m_wx_model;
+    
+    GtkTreePath *retval = gtk_tree_path_new ();
+    void *id = iter->user_data;    
+    
+    wxGtkTreeModelNode *node = FindParentNode( iter );
+    while (node)
+    {
+        int pos = node->GetChildren().Index( id );
+        gtk_tree_path_prepend_index( retval, pos );
+        
+        id = node->GetItem().GetID();
+        node = node->GetParent();
+    }
+
+    return retval;
+}
+
+GtkTreePath *wxDataViewCtrlInternal::get_path_safe( GtkTreeIter *iter )
+{
+    g_model = m_wx_model;
+    
+    GtkTreePath *retval = gtk_tree_path_new ();
+    void *id = iter->user_data;    
+    
+    wxGtkTreeModelNode *node = FindParentNode( iter );
+    while (node)
+    {
+        size_t pos;
+        for (pos = 0; pos < node->GetChildren().GetCount(); pos++)
+        {
+            if (id == node->GetChildren().Item( pos ))
+            {
+                gtk_tree_path_prepend_index( retval, (int) pos );
+                continue;
+            }
+        }
+
+        id = node->GetItem().GetID();
+        node = node->GetParent();
+    }
+
+    return retval;
+}
+
+gboolean wxDataViewCtrlInternal::iter_next( GtkTreeIter *iter )
+{
+    g_model = m_wx_model;
+    
+    wxGtkTreeModelNode *parent = FindParentNode( iter );
+    if( parent == NULL )
+        return FALSE;
+
+    unsigned int pos = parent->GetChildren().Index( iter->user_data );
+    
+    if (pos == parent->GetChildCount()-1)
+        return FALSE;
+        
+    iter->stamp = m_gtk_model->stamp;
+    iter->user_data = parent->GetChildren().Item( pos+1 );
+
+    return TRUE;
+}
+
+gboolean wxDataViewCtrlInternal::iter_children( GtkTreeIter *iter, GtkTreeIter *parent )
+{
+    g_model = m_wx_model;
+    
+    wxDataViewItem item( (void*) parent->user_data );
+    
+    if (!m_wx_model->IsContainer( item ))
+        return FALSE;
+        
+    wxGtkTreeModelNode *parent_node = FindNode( parent );
+    BuildBranch( parent_node );
+    
+    if (parent_node->GetChildCount() == 0)
+        return FALSE;
+        
+    iter->stamp = m_gtk_model->stamp;
+    iter->user_data = (gpointer) parent_node->GetChildren().Item( 0 );
+
+    return TRUE;
+}
+
+gboolean wxDataViewCtrlInternal::iter_has_child( GtkTreeIter *iter )
+{
+    g_model = m_wx_model;
+    
+    wxDataViewItem item( (void*) iter->user_data );
+    bool is_container = m_wx_model->IsContainer( item );
+    
+    if (!is_container)
+        return FALSE;
+    
+    wxGtkTreeModelNode *node = FindNode( iter );
+    BuildBranch( node );
+    
+    return (node->GetChildCount() > 0);
+}
+
+gint wxDataViewCtrlInternal::iter_n_children( GtkTreeIter *iter )
+{
+    g_model = m_wx_model;
+    
+    wxDataViewItem item( (void*) iter->user_data );
+    
+    if (!m_wx_model->IsContainer( item ))
+        return 0;
+    
+    wxGtkTreeModelNode *parent_node = FindNode( iter );
+    BuildBranch( parent_node );
+
+    // wxPrintf( "iter_n_children %d\n", parent_node->GetChildCount() );
+    
+    return parent_node->GetChildCount();
+}
+
+gboolean wxDataViewCtrlInternal::iter_nth_child( GtkTreeIter *iter, GtkTreeIter *parent, gint n )
+{
+    g_model = m_wx_model;
+    
+    void* id = NULL;
+    if (parent) id = (void*) parent->user_data;
+    wxDataViewItem item( id );
+    
+    if (!m_wx_model->IsContainer( item ))
+        return FALSE;
+    
+    wxGtkTreeModelNode *parent_node = FindNode( parent );
+    BuildBranch( parent_node );
+
+    // wxPrintf( "iter_nth_child %d\n", n );
+    
+    iter->stamp = m_gtk_model->stamp;
+    iter->user_data = parent_node->GetChildren().Item( n );
+
+    return TRUE;
+}
+
+gboolean wxDataViewCtrlInternal::iter_parent( GtkTreeIter *iter, GtkTreeIter *child )
+{
+    g_model = m_wx_model;
+
+    wxGtkTreeModelNode *node = FindParentNode( child );
+    if (!node)
+        return FALSE;
+    
+    iter->stamp = m_gtk_model->stamp;
+    iter->user_data = (gpointer) node->GetItem().GetID();
+
+    return TRUE;
+}
+    
+static wxGtkTreeModelNode*
+wxDataViewCtrlInternal_FindNode( wxDataViewModel * model, wxGtkTreeModelNode *treeNode, const wxDataViewItem &item )
+{
+    if( model == NULL )
+        return NULL;
+
+    ItemList list;
+    list.DeleteContents( true );
+    wxDataViewItem it( item );
+    while( it.IsOk() )
+    {
+        wxDataViewItem * pItem = new wxDataViewItem( it );
+        list.Insert( pItem );
+        it = model->GetParent( it );
+    }
+
+    wxGtkTreeModelNode * node = treeNode;
+    for( ItemList::compatibility_iterator n = list.GetFirst(); n; n = n->GetNext() )
+    {
+        if( node && node->GetNodes().GetCount() != 0 )
+        {
+            int len = node->GetNodes().GetCount();
+            wxGtkTreeModelNodes nodes = node->GetNodes();
+            int j = 0;
+            for( ; j < len; j ++)
+            {
+                if( nodes[j]->GetItem() == *(n->GetData()))
+                {
+                    node = nodes[j];
+                    break;
+                }    
+            }
+
+            if( j == len )
+            {
+                return NULL;
+            }
+        }
+        else
+            return NULL;
+    }
+    return node;
+
+}
+
+wxGtkTreeModelNode *wxDataViewCtrlInternal::FindNode( GtkTreeIter *iter )
+{
+    if (!iter)
+        return m_root;
+
+    wxDataViewItem item( (void*) iter->user_data );
+    if (!item.IsOk())
+        return m_root;
+    
+    wxGtkTreeModelNode *result = wxDataViewCtrlInternal_FindNode( m_wx_model, m_root, item );
+    
+    if (!result)
+    {
+        wxPrintf( "Not found %d\n", (int) iter->user_data );
+        char *crash = NULL;
+        *crash = 0;
+    }
+    
+    return result;
+}
+
+wxGtkTreeModelNode *wxDataViewCtrlInternal::FindNode( const wxDataViewItem &item )
+{
+    if (!item.IsOk())
+        return m_root;
+
+    wxGtkTreeModelNode *result = wxDataViewCtrlInternal_FindNode( m_wx_model, m_root, item );
+    
+    if (!result)
+    {
+        wxPrintf( "Not found %d\n", (int) item.GetID() );
+        char *crash = NULL;
+        *crash = 0;
+    }
+    
+    return result;
+}
+
+static wxGtkTreeModelNode*
+wxDataViewCtrlInternal_FindParentNode( wxDataViewModel * model, wxGtkTreeModelNode *treeNode, const wxDataViewItem &item )
+{
+    if( model == NULL )
+        return NULL;
+
+    ItemList list;
+    list.DeleteContents( true );
+    if( !item.IsOk() )
+        return NULL;
+
+    wxDataViewItem it( model->GetParent( item ) );
+    while( it.IsOk() )
+    {
+        wxDataViewItem * pItem = new wxDataViewItem( it );
+        list.Insert( pItem );
+        it = model->GetParent( it );
+    }
+
+    wxGtkTreeModelNode * node = treeNode;
+    for( ItemList::compatibility_iterator n = list.GetFirst(); n; n = n->GetNext() )
+    {
+        if( node && node->GetNodes().GetCount() != 0 )
+        {
+            int len = node->GetNodes().GetCount();
+            wxGtkTreeModelNodes nodes = node->GetNodes();
+            int j = 0;
+            for( ; j < len; j ++)
+            {
+                if( nodes[j]->GetItem() == *(n->GetData()))
+                {
+                    node = nodes[j];
+                    break;
+                }    
+            }
+
+            if( j == len )
+            {
+                return NULL;
+            }
+        }
+        else
+            return NULL;
+    }
+    //Examine whether the node is item's parent node
+    int len = node->GetChildCount();
+    for( int i = 0; i < len ; i ++ )
+    {
+        if( node->GetChildren().Item( i ) == item.GetID() )
+            return node;
+    }
+    return NULL;
+}
+
+wxGtkTreeModelNode *wxDataViewCtrlInternal::FindParentNode( GtkTreeIter *iter )
+{
+    if (!iter)
+        return NULL;
+        
+    wxDataViewItem item( (void*) iter->user_data );
+    if (!item.IsOk())
+        return NULL;
+
+    return wxDataViewCtrlInternal_FindParentNode( m_wx_model, m_root, item );
+}
+
+wxGtkTreeModelNode *wxDataViewCtrlInternal::FindParentNode( const wxDataViewItem &item )
+{
+    if (!item.IsOk())
+        return NULL;
+
+    return wxDataViewCtrlInternal_FindParentNode( m_wx_model, m_root, item );
+}
+
 //-----------------------------------------------------------------------------
 // wxDataViewCtrl signal callbacks
 //-----------------------------------------------------------------------------
@@ -2199,7 +2719,11 @@ wxdataview_row_activated_callback( GtkTreeView* treeview, GtkTreePath *path,
                                    GtkTreeViewColumn *column, wxDataViewCtrl *dv )
 {
     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, dv->GetId() );
-    // TODO: item
+
+    GtkTreeIter iter;
+    dv->GtkGetInternal()->get_iter( &iter, path );
+    wxDataViewItem item( (void*) iter.user_data );;
+    event.SetItem( item );
     event.SetModel( dv->GetModel() );
     dv->GetEventHandler()->ProcessEvent( event );
 }
@@ -2229,8 +2753,7 @@ void gtk_dataviewctrl_size_callback( GtkWidget *WXUNUSED(widget),
                                      GtkAllocation *alloc,
                                      wxDataViewCtrl *win )
 {
-
-    wxWindowList::Node *node = win->GetChildren().GetFirst();
+    wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst();
     while (node)
     {
         wxWindow *child = node->GetData();
@@ -2261,6 +2784,8 @@ wxDataViewCtrl::~wxDataViewCtrl()
     // remove the model from the GtkTreeView before it gets destroyed by the
     // wxDataViewCtrlBase's dtor
     gtk_tree_view_set_model( GTK_TREE_VIEW(m_treeview), NULL );
+    
+    delete m_internal;
 }
 
 void wxDataViewCtrl::Init()
@@ -2361,15 +2886,18 @@ bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
     if (!wxDataViewCtrlBase::AssociateModel( model ))
         return false;
 
-    GtkWxTreeModel *gtk_store = wxgtk_tree_model_new();
-    gtk_store->model = model;
+    GtkWxTreeModel *gtk_model = wxgtk_tree_model_new();
+    m_internal = new wxDataViewCtrlInternal( this, model, gtk_model );
+    gtk_model->internal = m_internal;
 
-    m_notifier = new wxGtkDataViewModelNotifier( gtk_store, model, this );
+    m_notifier = new wxGtkDataViewModelNotifier( gtk_model, model, this );
 
     model->AddNotifier( m_notifier );
 
-    gtk_tree_view_set_model( GTK_TREE_VIEW(m_treeview), GTK_TREE_MODEL(gtk_store) );
-    g_object_unref( gtk_store );
+    gtk_tree_view_set_model( GTK_TREE_VIEW(m_treeview), GTK_TREE_MODEL(gtk_model) );
+    
+    // unref in wxDataViewCtrlInternal
+    // g_object_unref( gtk_model );
 
     return true;
 }
@@ -2386,6 +2914,26 @@ bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
     return true;
 }
 
+wxDataViewItem wxDataViewCtrl::GetSelection()
+{
+    GtkTreeSelection *selection = gtk_tree_view_get_selection( GTK_TREE_VIEW(m_treeview) );
+    
+    if (m_windowStyle & wxDV_MULTIPLE)
+    {
+    }
+    else
+    {
+        GtkTreeIter iter;
+        if (gtk_tree_selection_get_selected( selection, NULL, &iter ))
+        {
+            wxDataViewItem item( (void*) iter.user_data );
+            return item;
+        }
+    }
+    
+    return wxDataViewItem(0);
+}
+
 void wxDataViewCtrl::DoSetExpanderColumn()
 {
 }