First actual sorting for wxDataViewCtrl

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47545 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/include/wx/dataview.h b/include/wx/dataview.h
index 90cb52b033ccc0f89995382198dfe13271817bbb..106829907ae06b32e63fd49a4d7d8ee33859d9d8 100644 (file)
--- a/include/wx/dataview.h
+++ b/include/wx/dataview.h
@@ -85,9 +85,6 @@ bool operator == (const wxDataViewItem &left, const wxDataViewItem &right);
 // wxDataViewModel
 // ---------------------------------------------------------
 
 // wxDataViewModel
 // ---------------------------------------------------------
 

-typedef int (wxCALLBACK *wxDataViewModelCompare)
-    (const wxDataViewItem& item1, const wxDataViewItem& item2, unsigned int col, unsigned int option );
-

 class WXDLLIMPEXP_ADV wxDataViewModel: public wxObjectRefData
 {
 public:
 class WXDLLIMPEXP_ADV wxDataViewModel: public wxObjectRefData
 {
 public:


@@ -118,18 +115,58 @@ public:
     virtual bool ValueChanged( const wxDataViewItem &item, unsigned int col );
     virtual bool Cleared();
 
     virtual bool ValueChanged( const wxDataViewItem &item, unsigned int col );
     virtual bool Cleared();
 

+    // delegatd action
+    virtual void Resort();
+

     void AddNotifier( wxDataViewModelNotifier *notifier );
     void RemoveNotifier( wxDataViewModelNotifier *notifier );
     
     void AddNotifier( wxDataViewModelNotifier *notifier );
     void RemoveNotifier( wxDataViewModelNotifier *notifier );
     

-    void SetCompareFunction( wxDataViewModelCompare func ) { m_cmpFunc = func; }
-    wxDataViewModelCompare GetCompareFunction() { return m_cmpFunc; }
+    // default compare function
+    virtual int Compare( const wxDataViewItem &item1, const wxDataViewItem &item2 );
+    
+    void SetSortingColumn( unsigned int col ) { m_sortingColumn = col; }
+    unsigned int GetSortingColumn() { return m_sortingColumn; }
+    void SetSortOrderAscending( bool ascending ) { m_ascending = true; }
+    bool GetSortOrderAscending() { return m_ascending; }
+    

     
 protected:
     // the user should not delete this class directly: he should use DecRef() instead!
     virtual ~wxDataViewModel() { }
 
     wxList                  m_notifiers;
     
 protected:
     // the user should not delete this class directly: he should use DecRef() instead!
     virtual ~wxDataViewModel() { }
 
     wxList                  m_notifiers;

-    wxDataViewModelCompare  m_cmpFunc;
+    unsigned int            m_sortingColumn;
+    bool                    m_ascending;
+};
+
+// ---------------------------------------------------------
+// wxDataViewVirtualListModel
+// ---------------------------------------------------------
+
+class wxDataViewIndexListModel: public wxDataViewModel
+{
+public:
+    wxDataViewIndexListModel();
+    ~wxDataViewIndexListModel();
+    
+    virtual unsigned int GetRowCount() = 0;
+    
+    virtual void GetValue( wxVariant &variant, 
+                           unsigned int row, unsigned int col ) const = 0;
+
+    virtual bool SetValue( const wxVariant &variant, 
+                           unsigned int row, unsigned int col ) = 0;
+    
+    void ItemPrepended();
+    void ItemInserted( unsigned int before );
+    void ItemAppended();
+    void ItemChanged( unsigned int row );
+    void ValueChanged( unsigned int row, unsigned int col );
+    
+    wxDataViewItem GetItem( unsigned int row );
+    
+    virtual int Compare( const wxDataViewItem &item1, const wxDataViewItem &item2 );
+    

 };
 
 // ---------------------------------------------------------
 };
 
 // ---------------------------------------------------------


@@ -147,6 +184,8 @@ public:
     virtual bool ItemChanged( const wxDataViewItem &item ) = 0;
     virtual bool ValueChanged( const wxDataViewItem &item, unsigned int col ) = 0;
     virtual bool Cleared() = 0;
     virtual bool ItemChanged( const wxDataViewItem &item ) = 0;
     virtual bool ValueChanged( const wxDataViewItem &item, unsigned int col ) = 0;
     virtual bool Cleared() = 0;

+    
+    virtual void Resort() { };

 
     void SetOwner( wxDataViewModel *owner ) { m_owner = owner; }
     wxDataViewModel *GetOwner()             { return m_owner; }
 
     void SetOwner( wxDataViewModel *owner ) { m_owner = owner; }
     wxDataViewModel *GetOwner()             { return m_owner; }

diff --git a/src/common/datavcmn.cpp b/src/common/datavcmn.cpp
index f8f5154fa29e1aba0be610690944d2089c118bc0..cd2af9dc204cafa77af43c2954f79e9a699a1c5b 100644 (file)
--- a/src/common/datavcmn.cpp
+++ b/src/common/datavcmn.cpp
@@ -39,7 +39,7 @@ bool operator == (const wxDataViewItem &left, const wxDataViewItem &right)
 wxDataViewModel::wxDataViewModel()
 {
     m_notifiers.DeleteContents( true );
 wxDataViewModel::wxDataViewModel()
 {
     m_notifiers.DeleteContents( true );

-    m_cmpFunc = NULL;
+    m_sortingColumn = 0;

 }
 
 bool wxDataViewModel::ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item )
 }
 
 bool wxDataViewModel::ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item )


@@ -122,6 +122,17 @@ bool wxDataViewModel::Cleared()
     return ret;
 }
 
     return ret;
 }
 

+void wxDataViewModel::Resort()
+{
+    wxList::compatibility_iterator node = m_notifiers.GetFirst();
+    while (node)
+    {
+        wxDataViewModelNotifier* notifier = (wxDataViewModelNotifier*) node->GetData();
+        notifier->Resort();
+        node = node->GetNext();
+    }
+}
+

 void wxDataViewModel::AddNotifier( wxDataViewModelNotifier *notifier )
 {
     m_notifiers.Append( notifier );
 void wxDataViewModel::AddNotifier( wxDataViewModelNotifier *notifier )
 {
     m_notifiers.Append( notifier );


@@ -133,6 +144,43 @@ void wxDataViewModel::RemoveNotifier( wxDataViewModelNotifier *notifier )
     m_notifiers.DeleteObject( notifier );
 }
 
     m_notifiers.DeleteObject( notifier );
 }
 

+int wxDataViewModel::Compare( const wxDataViewItem &item1, const wxDataViewItem &item2 )
+{
+    wxVariant value1,value2;
+    GetValue( value1, item1, m_sortingColumn );
+    GetValue( value2, item2, m_sortingColumn );
+    if (value1.GetType() == wxT("string"))
+    {
+        wxString str1 = value1.GetString();
+        wxString str2 = value2.GetString();
+        return str1.Cmp( str2 );
+    }
+    if (value1.GetType() == wxT("long"))
+    {
+        long l1 = value1.GetLong();
+        long l2 = value2.GetLong();
+        return l1-l2;
+    }
+    if (value1.GetType() == wxT("double"))
+    {
+        double d1 = value1.GetDouble();
+        double d2 = value2.GetDouble();
+        if (d1 == d2) return 0;
+        if (d1 < d2) return 1;
+        return -1;
+    }
+    if (value1.GetType() == wxT("datetime"))
+    {
+        wxDateTime dt1 = value1.GetDateTime();
+        wxDateTime dt2 = value2.GetDateTime();
+        if (dt1.IsEqualTo(dt2)) return 0;
+        if (dt1.IsEarlierThan(dt2)) return 1;
+        return -1;
+    }
+
+    return 0;
+}
+

 // ---------------------------------------------------------
 // wxDataViewRendererBase
 // ---------------------------------------------------------
 // ---------------------------------------------------------
 // wxDataViewRendererBase
 // ---------------------------------------------------------

diff --git a/src/gtk/dataview.cpp b/src/gtk/dataview.cpp
index 7bab43fa233d31d512aa73f49d179ee356893bed..f4f6ab4b5e34646b3cd366b66ebe4cecd51cf994 100644 (file)
--- a/src/gtk/dataview.cpp
+++ b/src/gtk/dataview.cpp
@@ -47,15 +47,21 @@
 //-----------------------------------------------------------------------------
 
 class wxGtkTreeModelNode;
 //-----------------------------------------------------------------------------
 
 class wxGtkTreeModelNode;

-WX_DEFINE_ARRAY_PTR( wxGtkTreeModelNode*, wxGtkTreeModelNodes );
+
+int LINKAGEMODE wxGtkTreeModelNodeCmp( wxGtkTreeModelNode* node1, wxGtkTreeModelNode* node2 );
+
+WX_DEFINE_SORTED_ARRAY( wxGtkTreeModelNode*, wxGtkTreeModelNodes );

 
 class wxGtkTreeModelNode
 {
 public:
 
 class wxGtkTreeModelNode
 {
 public:

-    wxGtkTreeModelNode( wxGtkTreeModelNode* parent, const wxDataViewItem &item )
+    wxGtkTreeModelNode( wxGtkTreeModelNode* parent, const wxDataViewItem &item,
+      wxDataViewModel *model ) :
+       m_children( wxGtkTreeModelNodeCmp )

     { 
         m_parent = parent; 
         m_item = item;
     { 
         m_parent = parent; 
         m_item = item;

+        m_model = model;

     }
     
     ~wxGtkTreeModelNode()
     }
     
     ~wxGtkTreeModelNode()


@@ -75,14 +81,13 @@ public:
         { return m_children; }
     wxGtkTreeModelNode* GetNthChild( unsigned int n ) 
         { return m_children.Item( n ); }
         { 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 Add( wxGtkTreeModelNode* child ) 
+        { return m_children.Add( child ); }

 
     unsigned int GetChildCount() { return m_children.GetCount(); }
 
     wxDataViewItem &GetItem() { return m_item; }
 
     unsigned int GetChildCount() { return m_children.GetCount(); }
 
     wxDataViewItem &GetItem() { return m_item; }

+    wxDataViewModel *GetModel() { return m_model; }

 
     bool HasChildren() { return m_hasChildren; }
     void SetHasChildren( bool has ) { m_hasChildren = has; }
 
     bool HasChildren() { return m_hasChildren; }
     void SetHasChildren( bool has ) { m_hasChildren = has; }


@@ -92,8 +97,14 @@ private:
     wxGtkTreeModelNodes  m_children; 
     wxDataViewItem       m_item; 
     bool                 m_hasChildren;
     wxGtkTreeModelNodes  m_children; 
     wxDataViewItem       m_item; 
     bool                 m_hasChildren;

+    wxDataViewModel     *m_model;

 };
 
 };
 

+int LINKAGEMODE wxGtkTreeModelNodeCmp( wxGtkTreeModelNode* node1, wxGtkTreeModelNode* node2 )
+{
+    return node1->GetModel()->Compare( node1->GetItem(), node2->GetItem() );
+}
+

 
 extern "C" {
 typedef struct _GtkWxTreeModel       GtkWxTreeModel;
 
 extern "C" {
 typedef struct _GtkWxTreeModel       GtkWxTreeModel;


@@ -107,6 +118,7 @@ public:
     
     gboolean get_iter( GtkTreeIter *iter, GtkTreePath *path );
     GtkTreePath *get_path( GtkTreeIter *iter);
     
     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 );
     gboolean iter_next( GtkTreeIter *iter );
     gboolean iter_children( GtkTreeIter *iter, GtkTreeIter *parent);
     gboolean iter_has_child( GtkTreeIter *iter );


@@ -163,9 +175,6 @@ struct _GtkWxTreeModel
   /*< private >*/
   gint stamp;
   wxDataViewCtrlInternal *internal;
   /*< private >*/
   gint stamp;
   wxDataViewCtrlInternal *internal;

-  
-  gint sort_column_id;
-  GtkSortType order;

 };
 
 struct _GtkWxTreeModelClass
 };
 
 struct _GtkWxTreeModelClass


@@ -188,6 +197,8 @@ static gboolean     wxgtk_tree_model_get_iter        (GtkTreeModel      *tree_mo
                                                       GtkTreePath       *path);
 static GtkTreePath *wxgtk_tree_model_get_path        (GtkTreeModel      *tree_model,
                                                       GtkTreeIter       *iter);
                                                       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,
 static void         wxgtk_tree_model_get_value       (GtkTreeModel      *tree_model,
                                                       GtkTreeIter       *iter,
                                                       gint               column,


@@ -326,8 +337,6 @@ wxgtk_tree_model_init (GtkWxTreeModel *tree_model)
 {
     tree_model->internal = NULL;
     tree_model->stamp = g_random_int();
 {
     tree_model->internal = NULL;
     tree_model->stamp = g_random_int();

-    tree_model->sort_column_id = -2;
-    tree_model->order = GTK_SORT_ASCENDING;

 }
 
 static void
 }
 
 static void


@@ -405,6 +414,17 @@ wxgtk_tree_model_get_path (GtkTreeModel *tree_model,
     return wxtree_model->internal->get_path( iter );
 }
 
     return wxtree_model->internal->get_path( iter );
 }
 

+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 wxtree_model->internal->get_path_safe( iter );
+}
+

 static void
 wxgtk_tree_model_get_value (GtkTreeModel *tree_model,
                             GtkTreeIter  *iter,
 static void
 wxgtk_tree_model_get_value (GtkTreeModel *tree_model,
                             GtkTreeIter  *iter,


@@ -509,14 +529,17 @@ gboolean wxgtk_tree_model_get_sort_column_id    (GtkTreeSortable        *sortabl
 
     g_return_val_if_fail (GTK_IS_WX_TREE_MODEL (sortable), FALSE);
 
 
     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)
     if (sort_column_id)

-        *sort_column_id = tree_model->sort_column_id;
+        *sort_column_id = tree_model->internal->GetDataViewModel()->GetSortingColumn();

         
     if (order)
         
     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;
 }
         
     return TRUE;
 }


@@ -526,20 +549,22 @@ void     wxgtk_tree_model_set_sort_column_id    (GtkTreeSortable        *sortabl
                                                      GtkSortType               order)
 {
     GtkWxTreeModel *tree_model = (GtkWxTreeModel *) sortable;
                                                      GtkSortType               order)
 {
     GtkWxTreeModel *tree_model = (GtkWxTreeModel *) sortable;

-

     g_return_if_fail (GTK_IS_WX_TREE_MODEL (sortable) );
 
     g_return_if_fail (GTK_IS_WX_TREE_MODEL (sortable) );
 

-    if ((tree_model->sort_column_id == sort_column_id) &&
-        (tree_model->order == order))
+    // TODO check for equality
+    

     return;
     return;

-
-    tree_model->sort_column_id = sort_column_id;
-    tree_model->order = order;
-
+    

     gtk_tree_sortable_sort_column_changed (sortable);
 
     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()->SetSortingColumn( sort_column_id );
+    
+    bool ascending = TRUE;
+    if (order != GTK_SORT_ASCENDING)
+        ascending = FALSE;
+    tree_model->internal->GetDataViewModel()->SetSortOrderAscending( ascending );
+    
+    tree_model->internal->GetDataViewModel()->Resort();

 }
 
 void     wxgtk_tree_model_set_sort_func         (GtkTreeSortable        *sortable,
 }
 
 void     wxgtk_tree_model_set_sort_func         (GtkTreeSortable        *sortable,


@@ -550,9 +575,6 @@ void     wxgtk_tree_model_set_sort_func         (GtkTreeSortable        *sortabl
 {
     g_return_if_fail (GTK_IS_WX_TREE_MODEL (sortable) );
     g_return_if_fail (func != NULL);
 {
     g_return_if_fail (GTK_IS_WX_TREE_MODEL (sortable) );
     g_return_if_fail (func != NULL);

-
-    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,
 }
 
 void     wxgtk_tree_model_set_default_sort_func (GtkTreeSortable        *sortable,


@@ -991,7 +1013,7 @@ bool wxGtkDataViewModelNotifier::ItemDeleted( const wxDataViewItem &item )
     iter.stamp = m_wxgtk_model->stamp;
     iter.user_data = (gpointer) item.GetID();
 
     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_MODEL(m_wxgtk_model), &iter );
     gtk_tree_model_row_deleted(
         GTK_TREE_MODEL(m_wxgtk_model), path );


@@ -2066,6 +2088,14 @@ wxDataViewCtrlInternal::~wxDataViewCtrlInternal()
     g_object_unref( m_gtk_model );
 }
     
     g_object_unref( m_gtk_model );
 }
     

+void wxDataViewCtrlInternal::InitTree()
+{
+    wxDataViewItem item;
+    m_root = new wxGtkTreeModelNode( NULL, item, m_wx_model );
+
+    BuildBranch( m_root );
+}
+

 void wxDataViewCtrlInternal::BuildBranch( wxGtkTreeModelNode *node )
 {
     if (node->GetChildCount() == 0)
 void wxDataViewCtrlInternal::BuildBranch( wxGtkTreeModelNode *node )
 {
     if (node->GetChildCount() == 0)


@@ -2073,8 +2103,7 @@ void wxDataViewCtrlInternal::BuildBranch( wxGtkTreeModelNode *node )
         wxDataViewItem child = m_wx_model->GetFirstChild( node->GetItem() );
         while (child.IsOk())
         {
         wxDataViewItem child = m_wx_model->GetFirstChild( node->GetItem() );
         while (child.IsOk())
         {

-            // wxPrintf( "AddItem %d\n", (int) child.GetID() );
-            node->Append( new wxGtkTreeModelNode( node, child ) );
+            node->Add( new wxGtkTreeModelNode( node, child, node->GetModel() ) );

             child = m_wx_model->GetNextSibling( child );
         }
     }
             child = m_wx_model->GetNextSibling( child );
         }
     }


@@ -2083,7 +2112,7 @@ void wxDataViewCtrlInternal::BuildBranch( wxGtkTreeModelNode *node )
 bool wxDataViewCtrlInternal::ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item )
 {
     wxGtkTreeModelNode *parent_node = FindNode( parent );
 bool wxDataViewCtrlInternal::ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item )
 {
     wxGtkTreeModelNode *parent_node = FindNode( parent );

-    parent_node->Append( new wxGtkTreeModelNode( parent_node, item ) );
+    parent_node->Add( new wxGtkTreeModelNode( parent_node, item, parent_node->GetModel() ) );

     return true;
 }
 
     return true;
 }
 


@@ -2091,8 +2120,15 @@ bool wxDataViewCtrlInternal::ItemDeleted( const wxDataViewItem &item )
 {
     wxGtkTreeModelNode *node = FindNode( item );
     wxGtkTreeModelNode *parent = node->GetParent();
 {
     wxGtkTreeModelNode *node = FindNode( item );
     wxGtkTreeModelNode *parent = node->GetParent();

-    parent->GetChildren().Remove( node );
-    delete node;
+    size_t pos;
+    for (pos = 0; pos < parent->GetChildren().GetCount(); pos++)
+    {
+        if (node == parent->GetChildren().Item( pos ))
+        {
+            parent->GetChildren().RemoveAt( pos );
+            continue;
+        }
+    }

 
     return true;
 }
 
     return true;
 }


@@ -2139,14 +2175,43 @@ GtkTreePath *wxDataViewCtrlInternal::get_path( GtkTreeIter *iter )
     return retval;
 }
 
     return retval;
 }
 

+GtkTreePath *wxDataViewCtrlInternal::get_path_safe( GtkTreeIter *iter )
+{
+    GtkTreePath *retval = gtk_tree_path_new ();
+    
+    wxGtkTreeModelNode *node = FindNode( iter );
+    while (node->GetParent())
+    {
+        wxGtkTreeModelNode *parent = node->GetParent();
+        size_t pos;
+        for (pos = 0; pos < parent->GetChildren().GetCount(); pos++)
+        {
+            if (node == parent->GetChildren().Item( pos ))
+            {
+                gtk_tree_path_prepend_index( retval, (int) pos );
+                continue;
+            }
+        }
+
+        node = parent;
+    }
+
+    return retval;
+}
+

 gboolean wxDataViewCtrlInternal::iter_next( GtkTreeIter *iter )
 {
 gboolean wxDataViewCtrlInternal::iter_next( GtkTreeIter *iter )
 {

-    wxDataViewItem item( (void*) iter->user_data );
-    item = m_wx_model->GetNextSibling( item );
-    if (!item.IsOk())
+    wxGtkTreeModelNode *node = FindNode( iter );
+    wxGtkTreeModelNode *parent = node->GetParent();
+    unsigned int pos = parent->GetChildren().Index( node );
+    
+    if (pos == parent->GetChildren().GetCount()-1)

         return FALSE;
         return FALSE;

-
-    iter->user_data = (gpointer) item.GetID();
+        
+    node = parent->GetChildren().Item( pos+1 );
+    
+    iter->stamp = m_gtk_model->stamp;
+    iter->user_data = (gpointer) node->GetItem().GetID();

 
     return TRUE;
 }
 
     return TRUE;
 }


@@ -2185,6 +2250,8 @@ gint wxDataViewCtrlInternal::iter_n_children( GtkTreeIter *iter )
     
     wxGtkTreeModelNode *parent_node = FindNode( iter );
     BuildBranch( parent_node );
     
     wxGtkTreeModelNode *parent_node = FindNode( iter );
     BuildBranch( parent_node );

+
+    // wxPrintf( "iter_n_children %d\n", parent_node->GetChildCount() );

     
     return parent_node->GetChildCount();
 }
     
     return parent_node->GetChildCount();
 }


@@ -2204,6 +2271,8 @@ gboolean wxDataViewCtrlInternal::iter_nth_child( GtkTreeIter *iter, GtkTreeIter
     wxGtkTreeModelNode *child_node = parent_node->GetChildren().Item( (size_t) n );
     if (!child_node)
         return FALSE;
     wxGtkTreeModelNode *child_node = parent_node->GetChildren().Item( (size_t) n );
     if (!child_node)
         return FALSE;

+
+    // wxPrintf( "iter_nth_child %d\n", n );

     
     iter->stamp = m_gtk_model->stamp;
     iter->user_data = (gpointer) child_node->GetItem().GetID();
     
     iter->stamp = m_gtk_model->stamp;
     iter->user_data = (gpointer) child_node->GetItem().GetID();


@@ -2226,14 +2295,6 @@ gboolean wxDataViewCtrlInternal::iter_parent( GtkTreeIter *iter, GtkTreeIter *ch
     return TRUE;
 }
     
     return TRUE;
 }
     

-void wxDataViewCtrlInternal::InitTree()
-{
-    wxDataViewItem item;
-    m_root = new wxGtkTreeModelNode( NULL, item );
-
-    BuildBranch( m_root );
-}
-

 static wxGtkTreeModelNode*
 wxDataViewCtrlInternal_FindNode( wxGtkTreeModelNode *node, const wxDataViewItem &item )
 {
 static wxGtkTreeModelNode*
 wxDataViewCtrlInternal_FindNode( wxGtkTreeModelNode *node, const wxDataViewItem &item )
 {


@@ -2245,11 +2306,17 @@ wxDataViewCtrlInternal_FindNode( wxGtkTreeModelNode *node, const wxDataViewItem
     {
         wxGtkTreeModelNode *child = node->GetChildren().Item( i );
         if (child->GetItem().GetID() == item.GetID())
     {
         wxGtkTreeModelNode *child = node->GetChildren().Item( i );
         if (child->GetItem().GetID() == item.GetID())

+        {
+            // wxPrintf( "leave findnode at %d\n", i );

             return child;
             return child;

+        }

             
         wxGtkTreeModelNode *node2 = wxDataViewCtrlInternal_FindNode( child, item );
         if (node2)
             
         wxGtkTreeModelNode *node2 = wxDataViewCtrlInternal_FindNode( child, item );
         if (node2)

+        {
+            // wxPrintf( "branch findnode at %d\n", i );

             return node2;
             return node2;

+        }

     }
     
     return NULL;
     }
     
     return NULL;