]> git.saurik.com Git - wxWidgets.git/blobdiff - src/generic/datavgen.cpp
use wxWindow::GetClientSize() instead of ::GetClientRect() in wxActiveXContainer...
[wxWidgets.git] / src / generic / datavgen.cpp
index 63e64dbdd42a578194834bab63452a6a4275cd72..388cd1b52ff26b154decd61de44674e9b2ac6eee 100644 (file)
@@ -1,7 +1,8 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        datavgen.cpp
+// Name:        src/generic/datavgen.cpp
 // Purpose:     wxDataViewCtrl generic implementation
 // Author:      Robert Roebling
+// Modified by: Francesco Montorsi, Guru Kathiresan, Bo Yang
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling
 // Licence:     wxWindows licence
@@ -10,7 +11,9 @@
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
-#include "wx/defs.h"
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
 
 #if wxUSE_DATAVIEWCTRL
 
 
 #ifdef wxUSE_GENERICDATAVIEWCTRL
 
+#ifndef WX_PRECOMP
+    #ifdef __WXMSW__
+        #include "wx/msw/private.h"
+        #include "wx/msw/wrapwin.h"
+        #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
+    #endif
+    #include "wx/sizer.h"
+    #include "wx/log.h"
+    #include "wx/dcclient.h"
+    #include "wx/timer.h"
+    #include "wx/settings.h"
+    #include "wx/msgdlg.h"
+    #include "wx/dcscreen.h"
+#endif
+
 #include "wx/stockitem.h"
-#include "wx/dcclient.h"
 #include "wx/calctrl.h"
 #include "wx/popupwin.h"
-#include "wx/sizer.h"
-#include "wx/log.h"
 #include "wx/renderer.h"
-
-#ifdef __WXMSW__
-    #include <windows.h> // for DLGC_WANTARROWS
-    #include "wx/msw/winundef.h"
-#endif
+#include "wx/dcbuffer.h"
+#include "wx/icon.h"
+#include "wx/list.h"
+#include "wx/listimpl.cpp"
+#include "wx/imaglist.h"
+#include "wx/headerctrl.h"
 
 //-----------------------------------------------------------------------------
 // classes
 
 class wxDataViewCtrl;
 
-// --------------------------------------------------------- 
-// wxGenericDataViewListModelNotifier
-// --------------------------------------------------------- 
+static const int SCROLL_UNIT_X = 15;
+
+// the cell padding on the left/right
+static const int PADDING_RIGHTLEFT = 3;
+
+// the expander space margin
+static const int EXPANDER_MARGIN = 4;
+
+#ifdef __WXMSW__
+static const int EXPANDER_OFFSET = 4;
+#else
+static const int EXPANDER_OFFSET = 1;
+#endif
+
+//Below is the compare stuff
+//For the generic implements, both the leaf nodes and the nodes are sorted for fast search when needed
+static wxDataViewModel * g_model;
+static int g_column = -2;
+static bool g_asending = true;
+
+//-----------------------------------------------------------------------------
+// wxDataViewHeaderWindow
+//-----------------------------------------------------------------------------
 
-class wxGenericDataViewListModelNotifier: public wxDataViewListModelNotifier
+class wxDataViewHeaderWindow : public wxHeaderCtrl
 {
 public:
-    wxGenericDataViewListModelNotifier( wxDataViewListModel *wx_model );
-    
-    virtual bool RowAppended();
-    virtual bool RowPrepended();
-    virtual bool RowInserted( size_t before );
-    virtual bool RowDeleted( size_t row );
-    virtual bool RowChanged( size_t row );
-    virtual bool ValueChanged( size_t col, size_t row );
-    virtual bool RowsReordered( size_t *new_order );
-    virtual bool Cleared();
-    
-    wxDataViewListModel *m_wx_model;
-};
+    wxDataViewHeaderWindow(wxDataViewCtrl *parent)
+        : wxHeaderCtrl(parent)
+    {
+    }
 
-// --------------------------------------------------------- 
-// wxGenericDataViewListModelNotifier
-// --------------------------------------------------------- 
+    wxDataViewCtrl *GetOwner() const
+        { return static_cast<wxDataViewCtrl *>(GetParent()); }
 
-wxGenericDataViewListModelNotifier::wxGenericDataViewListModelNotifier( 
-    wxDataViewListModel *wx_model )
-{
-    m_wx_model = wx_model;
-}
-    
-bool wxGenericDataViewListModelNotifier::RowAppended()
-{
-    size_t pos = m_wx_model->GetNumberOfRows()-1;
-    
-    return false;
-}
+protected:
+    // implement/override wxHeaderCtrl functions by forwarding them to the main
+    // control
+    virtual const wxHeaderColumn& GetColumn(unsigned int idx) const
+    {
+        return *(GetOwner()->GetColumn(idx));
+    }
 
-bool wxGenericDataViewListModelNotifier::RowPrepended()
-{
-    return false;
-}
+    virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
+    {
+        wxDataViewCtrl * const owner = GetOwner();
 
-bool wxGenericDataViewListModelNotifier::RowInserted( size_t before )
-{
-    return false;
-}
+        int widthContents = owner->GetBestColumnWidth(idx);
+        owner->GetColumn(idx)->SetWidth(wxMax(widthTitle, widthContents));
+        owner->OnColumnChange(idx);
 
-bool wxGenericDataViewListModelNotifier::RowDeleted( size_t row )
-{
-    return false;
-}
+        return true;
+    }
 
-bool wxGenericDataViewListModelNotifier::RowChanged( size_t row )
-{
-    return true;
-}
+private:
+    bool SendEvent(wxEventType type, unsigned int n)
+    {
+        wxDataViewCtrl * const owner = GetOwner();
+        wxDataViewEvent event(type, owner->GetId());
 
-bool wxGenericDataViewListModelNotifier::ValueChanged( size_t model_col, size_t model_row )
-{
-    wxNode *node = GetOwner()->m_viewingColumns.GetFirst();
-    while (node)
+        event.SetEventObject(owner);
+        event.SetColumn(n);
+        event.SetDataViewColumn(owner->GetColumn(n));
+        event.SetModel(owner->GetModel());
+
+        // for events created by wxDataViewHeaderWindow the
+        // row / value fields are not valid
+        return owner->GetEventHandler()->ProcessEvent(event);
+    }
+
+    void OnClick(wxHeaderCtrlEvent& event)
     {
-        wxDataViewViewingColumn* viewing_column = (wxDataViewViewingColumn*) node->GetData();
-        if (viewing_column->m_modelColumn == model_col)
+        const unsigned idx = event.GetColumn();
+
+        if ( SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, idx) )
+            return;
+
+        // default handling for the column click is to sort by this column or
+        // toggle its sort order
+        wxDataViewCtrl * const owner = GetOwner();
+        wxDataViewColumn * const col = owner->GetColumn(idx);
+        if ( !col->IsSortable() )
         {
-        
+            // no default handling for non-sortable columns
+            event.Skip();
+            return;
+        }
+
+        if ( col->IsSortKey() )
+        {
+            // already using this column for sorting, just change the order
+            col->ToggleSortOrder();
+        }
+        else // not using this column for sorting yet
+        {
+            // first unset the old sort column if any
+            int oldSortKey = owner->GetSortingColumnIndex();
+            if ( oldSortKey != wxNOT_FOUND )
+            {
+                owner->GetColumn(oldSortKey)->UnsetAsSortKey();
+                owner->OnColumnChange(oldSortKey);
+            }
+
+            owner->SetSortingColumnIndex(idx);
+            col->SetAsSortKey();
         }
 
-        node = node->GetNext();
+        wxDataViewModel * const model = owner->GetModel();
+        if ( model )
+            model->Resort();
+
+        owner->OnColumnChange(idx);
     }
-    
-    return false;
-}
 
-bool wxGenericDataViewListModelNotifier::RowsReordered( size_t *new_order )
-{
-    wxNode *node = GetOwner()->m_viewingColumns.GetFirst();
-    while (node)
+    void OnRClick(wxHeaderCtrlEvent& event)
     {
-        wxDataViewViewingColumn* viewing_column = (wxDataViewViewingColumn*) node->GetData();
+        if ( !SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK,
+                        event.GetColumn()) )
+            event.Skip();
+    }
+
+    void OnEndResize(wxHeaderCtrlEvent& event)
+    {
+        wxDataViewCtrl * const owner = GetOwner();
 
-        node = node->GetNext();
+        const unsigned col = event.GetColumn();
+        owner->GetColumn(col)->SetWidth(event.GetWidth());
+        GetOwner()->OnColumnChange(col);
     }
-    
-    return false;
-}
 
-bool wxGenericDataViewListModelNotifier::Cleared()
-{
-    return false;
-}
+    void OnEndReorder(wxHeaderCtrlEvent& event)
+    {
+        wxDataViewCtrl * const owner = GetOwner();
+        owner->ColumnMoved(owner->GetColumn(event.GetColumn()),
+                           event.GetNewOrder());
+    }
 
-// --------------------------------------------------------- 
-// wxDataViewCell
-// --------------------------------------------------------- 
+    DECLARE_EVENT_TABLE()
+    DECLARE_NO_COPY_CLASS(wxDataViewHeaderWindow)
+};
 
-IMPLEMENT_ABSTRACT_CLASS(wxDataViewCell, wxDataViewCellBase)
+BEGIN_EVENT_TABLE(wxDataViewHeaderWindow, wxHeaderCtrl)
+    EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
+    EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
 
-wxDataViewCell::wxDataViewCell( const wxString &varianttype, wxDataViewCellMode mode ) :
-    wxDataViewCellBase( varianttype, mode )
-{
-}
+    EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnEndResize)
 
-// --------------------------------------------------------- 
-// wxDataViewTextCell
-// --------------------------------------------------------- 
+    EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
+END_EVENT_TABLE()
 
-IMPLEMENT_ABSTRACT_CLASS(wxDataViewTextCell, wxDataViewCell)
+//-----------------------------------------------------------------------------
+// wxDataViewRenameTimer
+//-----------------------------------------------------------------------------
 
-wxDataViewTextCell::wxDataViewTextCell( const wxString &varianttype, wxDataViewCellMode mode ) :
-    wxDataViewCell( varianttype, mode )
+class wxDataViewRenameTimer: public wxTimer
 {
-}
+private:
+    wxDataViewMainWindow *m_owner;
 
-bool wxDataViewTextCell::SetValue( const wxVariant &value )
-{
-    return false;
-}
+public:
+    wxDataViewRenameTimer( wxDataViewMainWindow *owner );
+    void Notify();
+};
+
+//-----------------------------------------------------------------------------
+// wxDataViewTreeNode
+//-----------------------------------------------------------------------------
+class wxDataViewTreeNode;
+WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
+WX_DEFINE_ARRAY( void* , wxDataViewTreeLeaves);
 
-bool wxDataViewTextCell::GetValue( wxVariant &value )
+int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1, wxDataViewTreeNode ** node2);
+int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2);
+
+class wxDataViewTreeNode
 {
-    return false;
-}
+public:
+    wxDataViewTreeNode( wxDataViewTreeNode * parent = NULL )
+    {
+        m_parent = parent;
+        if (!parent)
+            m_open = true;
+        else
+            m_open = false;
+        m_hasChildren = false;
+        m_subTreeCount  = 0;
+    }
+
+    ~wxDataViewTreeNode()
+    {
+    }
+
+    wxDataViewTreeNode * GetParent() const { return m_parent; }
+    void SetParent( wxDataViewTreeNode * parent ) { m_parent = parent; }
+    wxDataViewTreeNodes &  GetNodes() { return m_nodes; }
+    wxDataViewTreeLeaves & GetChildren() { return m_leaves; }
+
+    void AddNode( wxDataViewTreeNode * node )
+    {
+        m_leaves.Add( node->GetItem().GetID() );
+        if (g_column >= -1)
+            m_leaves.Sort( &wxGenericTreeModelItemCmp );
+        m_nodes.Add( node );
+        if (g_column >= -1)
+            m_nodes.Sort( &wxGenericTreeModelNodeCmp );
+    }
+    void AddLeaf( void * leaf )
+    {
+        m_leaves.Add( leaf );
+        if (g_column >= -1)
+            m_leaves.Sort( &wxGenericTreeModelItemCmp );
+    }
+
+    wxDataViewItem & GetItem() { return m_item; }
+    const wxDataViewItem & GetItem() const { return m_item; }
+    void SetItem( const wxDataViewItem & item ) { m_item = item; }
+
+    unsigned int GetChildrenNumber() const { return m_leaves.GetCount(); }
+    unsigned int GetNodeNumber() const { return m_nodes.GetCount(); }
+    int GetIndentLevel() const
+    {
+        int ret = 0;
+        const wxDataViewTreeNode * node = this;
+        while( node->GetParent()->GetParent() != NULL )
+        {
+            node = node->GetParent();
+            ret ++;
+        }
+        return ret;
+    }
+
+    bool IsOpen() const
+    {
+        return m_open;
+    }
+
+    void ToggleOpen()
+    {
+        int len = m_nodes.GetCount();
+        int sum = 0;
+        for ( int i = 0;i < len; i ++)
+            sum += m_nodes[i]->GetSubTreeCount();
+
+        sum += m_leaves.GetCount();
+        if (m_open)
+        {
+            ChangeSubTreeCount(-sum);
+            m_open = !m_open;
+        }
+        else
+        {
+            m_open = !m_open;
+            ChangeSubTreeCount(sum);
+        }
+    }
+    bool HasChildren() const { return m_hasChildren; }
+    void SetHasChildren( bool has ){ m_hasChildren = has; }
 
-// --------------------------------------------------------- 
-// wxDataViewToggleCell
-// --------------------------------------------------------- 
+    void SetSubTreeCount( int num ) { m_subTreeCount = num; }
+    int GetSubTreeCount() const { return m_subTreeCount; }
+    void ChangeSubTreeCount( int num )
+    {
+        if( !m_open )
+            return;
+        m_subTreeCount += num;
+        if( m_parent )
+            m_parent->ChangeSubTreeCount(num);
+    }
+
+    void Resort()
+    {
+        if (g_column >= -1)
+        {
+            m_nodes.Sort( &wxGenericTreeModelNodeCmp );
+            int len = m_nodes.GetCount();
+            for (int i = 0; i < len; i ++)
+                m_nodes[i]->Resort();
+            m_leaves.Sort( &wxGenericTreeModelItemCmp );
+        }
+    }
 
-IMPLEMENT_ABSTRACT_CLASS(wxDataViewToggleCell, wxDataViewCell)
+private:
+    wxDataViewTreeNode  *m_parent;
+    wxDataViewTreeNodes  m_nodes;
+    wxDataViewTreeLeaves m_leaves;
+    wxDataViewItem       m_item;
+    bool                 m_open;
+    bool                 m_hasChildren;
+    int                  m_subTreeCount;
+};
 
-wxDataViewToggleCell::wxDataViewToggleCell( const wxString &varianttype, 
-                        wxDataViewCellMode mode ) :
-    wxDataViewCell( varianttype, mode )
+int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1, wxDataViewTreeNode ** node2)
 {
+    return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
 }
 
-bool wxDataViewToggleCell::SetValue( const wxVariant &value )
+int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2)
 {
-    return false;
+    return g_model->Compare( *id1, *id2, g_column, g_asending );
 }
 
-bool wxDataViewToggleCell::GetValue( wxVariant &value )
+
+
+//-----------------------------------------------------------------------------
+// wxDataViewMainWindow
+//-----------------------------------------------------------------------------
+
+WX_DEFINE_SORTED_USER_EXPORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection,
+                                            WXDLLIMPEXP_ADV);
+WX_DECLARE_LIST(wxDataViewItem, ItemList);
+WX_DEFINE_LIST(ItemList)
+
+class wxDataViewMainWindow: public wxWindow
 {
-    return false;
-}
-    
-// --------------------------------------------------------- 
-// wxDataViewCustomCell
-// --------------------------------------------------------- 
+public:
+    wxDataViewMainWindow( wxDataViewCtrl *parent,
+                            wxWindowID id,
+                            const wxPoint &pos = wxDefaultPosition,
+                            const wxSize &size = wxDefaultSize,
+                            const wxString &name = wxT("wxdataviewctrlmainwindow") );
+    virtual ~wxDataViewMainWindow();
+
+    bool IsVirtualList() const { return m_root == NULL; }
+
+    // notifications from wxDataViewModel
+    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()
+    {
+        if (!IsVirtualList())
+        {
+            SortPrepare();
+            m_root->Resort();
+        }
+        UpdateDisplay();
+    }
+
+    void SortPrepare()
+    {
+        g_model = GetOwner()->GetModel();
+        wxDataViewColumn* col = GetOwner()->GetSortingColumn();
+        if( !col )
+        {
+            if (g_model->HasDefaultCompare())
+                g_column = -1;
+            else
+                g_column = -2;
+
+            g_asending = true;
+            return;
+        }
+        g_column = col->GetModelColumn();
+        g_asending = col->IsSortOrderAscending();
+    }
+
+    void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
+    wxDataViewCtrl *GetOwner() { return m_owner; }
+    const wxDataViewCtrl *GetOwner() const { return m_owner; }
+
+    void OnPaint( wxPaintEvent &event );
+    void OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event);
+    void OnChar( wxKeyEvent &event );
+    void OnMouse( wxMouseEvent &event );
+    void OnSetFocus( wxFocusEvent &event );
+    void OnKillFocus( wxFocusEvent &event );
+
+    void UpdateDisplay();
+    void RecalculateDisplay();
+    void OnInternalIdle();
+
+    void OnRenameTimer();
+
+    void ScrollWindow( int dx, int dy, const wxRect *rect = NULL );
+    void ScrollTo( int rows, int column );
+
+    bool HasCurrentRow() { return m_currentRow != (unsigned int)-1; }
+    void ChangeCurrentRow( unsigned int row );
+
+    bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); }
+    bool IsEmpty() { return GetRowCount() == 0; }
+
+    int GetCountPerPage() const;
+    int GetEndOfLastCol() const;
+    unsigned int GetFirstVisibleRow() const;
+    //I change this method to un const because in the tree view, the displaying number of the tree are changing along with the expanding/collapsing of the tree nodes
+    unsigned int GetLastVisibleRow();
+    unsigned int GetRowCount();
+
+    wxDataViewItem GetSelection() const;
+    wxDataViewSelection GetSelections(){ return m_selection; }
+    void SetSelections( const wxDataViewSelection & sel ) { m_selection = sel; UpdateDisplay(); }
+    void Select( const wxArrayInt& aSelections );
+    void SelectAllRows( bool on );
+    void SelectRow( unsigned int row, bool on );
+    void SelectRows( unsigned int from, unsigned int to, bool on );
+    void ReverseRowSelection( unsigned int row );
+    bool IsRowSelected( unsigned int row );
+    void SendSelectionChangedEvent( const wxDataViewItem& item);
+
+    void RefreshRow( unsigned int row );
+    void RefreshRows( unsigned int from, unsigned int to );
+    void RefreshRowsAfter( unsigned int firstRow );
+
+    // returns the colour to be used for drawing the rules
+    wxColour GetRuleColour() const
+    {
+        return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
+    }
+
+    wxRect GetLineRect( unsigned int row ) const;
+
+    int GetLineStart( unsigned int row ) const;  // row * m_lineHeight in fixed mode
+    int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
+    int GetLineAt( unsigned int y ) const;       // y / m_lineHeight in fixed mode
+
+    //Some useful functions for row and item mapping
+    wxDataViewItem GetItemByRow( unsigned int row ) const;
+    int GetRowByItem( const wxDataViewItem & item ) const;
+
+    //Methods for building the mapping tree
+    void BuildTree( wxDataViewModel  * model );
+    void DestroyTree();
+    void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
+    wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
+
+    void Expand( unsigned int row ) { OnExpanding( row ); }
+    void Collapse( unsigned int row ) { OnCollapsing( row ); }
+    bool IsExpanded( unsigned int row ) const;
+private:
+    wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
+    //We did not need this temporarily
+    //wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
+
+    int RecalculateCount();
+
+    wxDataViewEvent SendExpanderEvent( wxEventType type, const wxDataViewItem & item );
+    void OnExpanding( unsigned int row );
+    void OnCollapsing( unsigned int row );
+
+    wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
+
+private:
+    wxDataViewCtrl             *m_owner;
+    int                         m_lineHeight;
+    bool                        m_dirty;
+
+    wxDataViewColumn           *m_currentCol;
+    unsigned int                m_currentRow;
+    wxDataViewSelection         m_selection;
+
+    wxDataViewRenameTimer      *m_renameTimer;
+    bool                        m_lastOnSame;
+
+    bool                        m_hasFocus;
+
+    int                         m_dragCount;
+    wxPoint                     m_dragStart;
 
-IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomCell, wxDataViewCell)
+    // for double click logic
+    unsigned int m_lineLastClicked,
+           m_lineBeforeLastClicked,
+           m_lineSelectSingleOnUp;
 
-wxDataViewCustomCell::wxDataViewCustomCell( const wxString &varianttype, 
-                          wxDataViewCellMode mode ) :
-    wxDataViewCell( varianttype, mode )
+    // the pen used to draw horiz/vertical rules
+    wxPen m_penRule;
+
+    // the pen used to draw the expander and the lines
+    wxPen m_penExpander;
+
+    //This is the tree structure of the model
+    wxDataViewTreeNode * m_root;
+    int m_count;
+    //This is the tree node under the cursor
+    wxDataViewTreeNode * m_underMouse;
+private:
+    DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
+    DECLARE_EVENT_TABLE()
+};
+
+// ---------------------------------------------------------
+// wxGenericDataViewModelNotifier
+// ---------------------------------------------------------
+
+class wxGenericDataViewModelNotifier: public wxDataViewModelNotifier
 {
-    m_dc = NULL;
-    
-    Init();
-}
+public:
+    wxGenericDataViewModelNotifier( wxDataViewMainWindow *mainWindow )
+        { m_mainWindow = mainWindow; }
+
+    virtual bool ItemAdded( const wxDataViewItem & parent, const wxDataViewItem & item )
+        { return m_mainWindow->ItemAdded( parent , item ); }
+    virtual bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
+        { return m_mainWindow->ItemDeleted( parent, item ); }
+    virtual bool ItemChanged( const wxDataViewItem & item )
+        { return m_mainWindow->ItemChanged(item);  }
+    virtual bool ValueChanged( const wxDataViewItem & item , unsigned int col )
+        { return m_mainWindow->ValueChanged( item, col ); }
+    virtual bool Cleared()
+        { return m_mainWindow->Cleared(); }
+    virtual void Resort()
+         { m_mainWindow->Resort(); }
+
+    wxDataViewMainWindow    *m_mainWindow;
+};
+
+// ---------------------------------------------------------
+// wxDataViewRenderer
+// ---------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
 
-bool wxDataViewCustomCell::Init()
+wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,
+                                        wxDataViewCellMode mode,
+                                        int align) :
+    wxDataViewRendererBase( varianttype, mode, align )
 {
-    return false;
+    m_dc = NULL;
+    m_align = align;
+    m_mode = mode;
+    m_wantsAttr = false;
+    m_hasAttr = false;
 }
 
-wxDataViewCustomCell::~wxDataViewCustomCell()
+wxDataViewRenderer::~wxDataViewRenderer()
 {
     if (m_dc)
         delete m_dc;
 }
 
-wxDC *wxDataViewCustomCell::GetDC()
+wxDC *wxDataViewRenderer::GetDC()
 {
     if (m_dc == NULL)
     {
@@ -220,534 +595,3145 @@ wxDC *wxDataViewCustomCell::GetDC()
             return NULL;
         m_dc = new wxClientDC( GetOwner()->GetOwner() );
     }
-        
+
     return m_dc;
 }
-    
-// --------------------------------------------------------- 
-// wxDataViewProgressCell
-// --------------------------------------------------------- 
 
-IMPLEMENT_ABSTRACT_CLASS(wxDataViewProgressCell, wxDataViewCustomCell)
+void wxDataViewRenderer::SetAlignment( int align )
+{
+    m_align=align;
+}
 
-wxDataViewProgressCell::wxDataViewProgressCell( const wxString &label, 
-    const wxString &varianttype, wxDataViewCellMode mode ) :
-    wxDataViewCustomCell( varianttype, mode )  
+int wxDataViewRenderer::GetAlignment() const
 {
-    m_label = label;
-    m_value = 0;
+    return m_align;
+}
+
+int wxDataViewRenderer::CalculateAlignment() const
+{
+    if (m_align == wxDVR_DEFAULT_ALIGNMENT)
+    {
+        if (GetOwner() == NULL)
+           return wxALIGN_LEFT | wxALIGN_CENTRE_VERTICAL;
+
+        return GetOwner()->GetAlignment() | wxALIGN_CENTRE_VERTICAL;
+    }
+
+    return m_align;
 }
 
-wxDataViewProgressCell::~wxDataViewProgressCell()
+// ---------------------------------------------------------
+// wxDataViewCustomRenderer
+// ---------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
+
+wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
+                          wxDataViewCellMode mode, int align ) :
+    wxDataViewRenderer( varianttype, mode, align )
 {
 }
 
-bool wxDataViewProgressCell::SetValue( const wxVariant &value )
+void wxDataViewCustomRenderer::RenderText( const wxString &text, int xoffset, wxRect cell, wxDC *dc, int state )
 {
-    m_value = (long) value;
-    
-    if (m_value < 0) m_value = 0;
-    if (m_value > 100) m_value = 100;
-    
-    return true;
+    wxDataViewCtrl *view = GetOwner()->GetOwner();
+    wxColour col = (state & wxDATAVIEW_CELL_SELECTED) ?
+                        wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT) :
+                        view->GetForegroundColour();
+    dc->SetTextForeground(col);
+    dc->DrawText( text, cell.x + xoffset, cell.y + ((cell.height - dc->GetCharHeight()) / 2));
 }
-    
-bool wxDataViewProgressCell::Render( wxRect cell, wxDC *dc, int state )
+
+// ---------------------------------------------------------
+// wxDataViewTextRenderer
+// ---------------------------------------------------------
+
+IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewCustomRenderer)
+
+wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype,
+                                                wxDataViewCellMode mode, int align ) :
+    wxDataViewCustomRenderer( varianttype, mode, align )
 {
-    double pct = (double)m_value / 100.0;
-    wxRect bar = cell;
-    bar.width = (int)(cell.width * pct);
-    dc->SetPen( *wxTRANSPARENT_PEN );
-    dc->SetBrush( *wxBLUE_BRUSH );
-    dc->DrawRectangle( bar );
+}
+
+bool wxDataViewTextRenderer::SetValue( const wxVariant &value )
+{
+    m_text = value.GetString();
 
-    dc->SetBrush( *wxTRANSPARENT_BRUSH );
-    dc->SetPen( *wxBLACK_PEN );
-    dc->DrawRectangle( cell );
-    
     return true;
 }
 
-wxSize wxDataViewProgressCell::GetSize()
+bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 {
-    return wxSize(40,12);
+    return false;
 }
-    
-// --------------------------------------------------------- 
-// wxDataViewDateCell
-// --------------------------------------------------------- 
 
-class wxDataViewDateCellPopupTransient: public wxPopupTransientWindow
+bool wxDataViewTextRenderer::HasEditorCtrl()
 {
-public: 
-    wxDataViewDateCellPopupTransient( wxWindow* parent, wxDateTime *value,
-        wxDataViewListModel *model, size_t col, size_t row ) :
-        wxPopupTransientWindow( parent, wxBORDER_SIMPLE )
-    {
-        m_model = model;
-        m_col = col;
-        m_row = row;
-        m_cal = new wxCalendarCtrl( this, -1, *value );
+    return true;
+}
+
+wxControl* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
+        wxRect labelRect, const wxVariant &value )
+{
+    return new wxTextCtrl( parent, wxID_ANY, value,
+                           wxPoint(labelRect.x,labelRect.y),
+                           wxSize(labelRect.width,labelRect.height) );
+}
+
+bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxControl *editor, wxVariant &value )
+{
+    wxTextCtrl *text = (wxTextCtrl*) editor;
+    value = text->GetValue();
+    return true;
+}
+
+bool wxDataViewTextRenderer::Render( wxRect cell, wxDC *dc, int state )
+{
+    RenderText( m_text, 0, cell, dc, state );
+    return true;
+}
+
+wxSize wxDataViewTextRenderer::GetSize() const
+{
+    const wxDataViewCtrl *view = GetView();
+    if (!m_text.empty())
+    {
+        int x,y;
+        view->GetTextExtent( m_text, &x, &y );
+        return wxSize( x, y );
+    }
+    return wxSize(80,20);
+}
+
+// ---------------------------------------------------------
+// wxDataViewTextRendererAttr
+// ---------------------------------------------------------
+
+IMPLEMENT_CLASS(wxDataViewTextRendererAttr, wxDataViewTextRenderer)
+
+wxDataViewTextRendererAttr::wxDataViewTextRendererAttr( const wxString &varianttype,
+                            wxDataViewCellMode mode, int align ) :
+    wxDataViewTextRenderer( varianttype, mode, align )
+{
+    m_wantsAttr = true;
+}
+
+bool wxDataViewTextRendererAttr::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
+{
+    wxFont font;
+    wxColour colour;
+
+    if (m_hasAttr)
+    {
+        if (m_attr.HasColour())
+        {
+            colour = dc->GetTextForeground();
+            dc->SetTextForeground( m_attr.GetColour() );
+        }
+
+        if (m_attr.GetBold() || m_attr.GetItalic())
+        {
+             font = dc->GetFont();
+             wxFont myfont = font;
+             if (m_attr.GetBold())
+                 myfont.SetWeight( wxFONTWEIGHT_BOLD );
+             if (m_attr.GetItalic())
+                 myfont.SetStyle( wxFONTSTYLE_ITALIC );
+             dc->SetFont( myfont );
+        }
+    }
+
+    dc->DrawText( m_text, cell.x, cell.y + ((cell.height - dc->GetCharHeight()) / 2));
+
+    // restore dc
+    if (m_hasAttr)
+    {
+        if (m_attr.HasColour())
+            dc->SetTextForeground( colour );
+
+        if (m_attr.GetBold() || m_attr.GetItalic())
+            dc->SetFont( font );
+    }
+
+    return true;
+}
+
+
+// ---------------------------------------------------------
+// wxDataViewBitmapRenderer
+// ---------------------------------------------------------
+
+IMPLEMENT_CLASS(wxDataViewBitmapRenderer, wxDataViewCustomRenderer)
+
+wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype,
+                                                    wxDataViewCellMode mode, int align ) :
+    wxDataViewCustomRenderer( varianttype, mode, align )
+{
+}
+
+bool wxDataViewBitmapRenderer::SetValue( const wxVariant &value )
+{
+    if (value.GetType() == wxT("wxBitmap"))
+        m_bitmap << value;
+    if (value.GetType() == wxT("wxIcon"))
+        m_icon << value;
+
+    return true;
+}
+
+bool wxDataViewBitmapRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
+{
+    return false;
+}
+
+bool wxDataViewBitmapRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
+{
+    if (m_bitmap.Ok())
+        dc->DrawBitmap( m_bitmap, cell.x, cell.y );
+    else if (m_icon.Ok())
+        dc->DrawIcon( m_icon, cell.x, cell.y );
+
+    return true;
+}
+
+wxSize wxDataViewBitmapRenderer::GetSize() const
+{
+    if (m_bitmap.Ok())
+        return wxSize( m_bitmap.GetWidth(), m_bitmap.GetHeight() );
+    else if (m_icon.Ok())
+        return wxSize( m_icon.GetWidth(), m_icon.GetHeight() );
+
+    return wxSize(16,16);
+}
+
+// ---------------------------------------------------------
+// wxDataViewToggleRenderer
+// ---------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxDataViewToggleRenderer, wxDataViewCustomRenderer)
+
+wxDataViewToggleRenderer::wxDataViewToggleRenderer( const wxString &varianttype,
+                        wxDataViewCellMode mode, int align ) :
+    wxDataViewCustomRenderer( varianttype, mode, align )
+{
+    m_toggle = false;
+}
+
+bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
+{
+    m_toggle = value.GetBool();
+
+    return true;
+}
+
+bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) ) const
+{
+    return false;
+}
+
+bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
+{
+    // User wxRenderer here
+
+    wxRect rect;
+    rect.x = cell.x + cell.width/2 - 10;
+    rect.width = 20;
+    rect.y = cell.y + cell.height/2 - 10;
+    rect.height = 20;
+
+    int flags = 0;
+    if (m_toggle)
+        flags |= wxCONTROL_CHECKED;
+    if (GetMode() != wxDATAVIEW_CELL_ACTIVATABLE)
+        flags |= wxCONTROL_DISABLED;
+
+    wxRendererNative::Get().DrawCheckBox(
+            GetOwner()->GetOwner(),
+            *dc,
+            rect,
+            flags );
+
+    return true;
+}
+
+bool wxDataViewToggleRenderer::Activate( wxRect WXUNUSED(cell),
+                                         wxDataViewModel *model,
+                                         const wxDataViewItem & item, unsigned int col)
+{
+    bool value = !m_toggle;
+    wxVariant variant = value;
+    model->SetValue( variant, item, col);
+    model->ValueChanged( item, col );
+    return true;
+}
+
+wxSize wxDataViewToggleRenderer::GetSize() const
+{
+    return wxSize(20,20);
+}
+
+// ---------------------------------------------------------
+// wxDataViewProgressRenderer
+// ---------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxDataViewProgressRenderer, wxDataViewCustomRenderer)
+
+wxDataViewProgressRenderer::wxDataViewProgressRenderer( const wxString &label,
+    const wxString &varianttype, wxDataViewCellMode mode, int align ) :
+    wxDataViewCustomRenderer( varianttype, mode, align )
+{
+    m_label = label;
+    m_value = 0;
+}
+
+wxDataViewProgressRenderer::~wxDataViewProgressRenderer()
+{
+}
+
+bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
+{
+    m_value = (long) value;
+
+    if (m_value < 0) m_value = 0;
+    if (m_value > 100) m_value = 100;
+
+    return true;
+}
+
+bool wxDataViewProgressRenderer::GetValue( wxVariant &value ) const
+{
+    value = (long) m_value;
+    return true;
+}
+
+bool wxDataViewProgressRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
+{
+    double pct = (double)m_value / 100.0;
+    wxRect bar = cell;
+    bar.width = (int)(cell.width * pct);
+    dc->SetPen( *wxTRANSPARENT_PEN );
+    dc->SetBrush( *wxBLUE_BRUSH );
+    dc->DrawRectangle( bar );
+
+    dc->SetBrush( *wxTRANSPARENT_BRUSH );
+    dc->SetPen( *wxBLACK_PEN );
+    dc->DrawRectangle( cell );
+
+    return true;
+}
+
+wxSize wxDataViewProgressRenderer::GetSize() const
+{
+    return wxSize(40,12);
+}
+
+// ---------------------------------------------------------
+// wxDataViewDateRenderer
+// ---------------------------------------------------------
+
+#define wxUSE_DATE_RENDERER_POPUP (wxUSE_CALENDARCTRL && wxUSE_POPUPWIN)
+
+#if wxUSE_DATE_RENDERER_POPUP
+
+class wxDataViewDateRendererPopupTransient: public wxPopupTransientWindow
+{
+public:
+    wxDataViewDateRendererPopupTransient( wxWindow* parent, wxDateTime *value,
+        wxDataViewModel *model, const wxDataViewItem & item, unsigned int col) :
+        wxPopupTransientWindow( parent, wxBORDER_SIMPLE ),
+        m_item( item )
+    {
+        m_model = model;
+        m_col = col;
+        m_cal = new wxCalendarCtrl( this, wxID_ANY, *value );
         wxBoxSizer *sizer = new wxBoxSizer( wxHORIZONTAL );
         sizer->Add( m_cal, 1, wxGROW );
         SetSizer( sizer );
         sizer->Fit( this );
     }
-    
+
+    void OnCalendar( wxCalendarEvent &event );
+
+    wxCalendarCtrl      *m_cal;
+    wxDataViewModel *m_model;
+    unsigned int               m_col;
+    const wxDataViewItem &   m_item;
+
+protected:
     virtual void OnDismiss()
     {
     }
-    
-    void OnCalendar( wxCalendarEvent &event );
-    
-    wxCalendarCtrl      *m_cal;
-    wxDataViewListModel *m_model; 
-    size_t               m_col;
-    size_t               m_row;
-    
+
 private:
     DECLARE_EVENT_TABLE()
 };
 
-BEGIN_EVENT_TABLE(wxDataViewDateCellPopupTransient,wxPopupTransientWindow)
-    EVT_CALENDAR( -1, wxDataViewDateCellPopupTransient::OnCalendar )
+BEGIN_EVENT_TABLE(wxDataViewDateRendererPopupTransient,wxPopupTransientWindow)
+    EVT_CALENDAR( wxID_ANY, wxDataViewDateRendererPopupTransient::OnCalendar )
 END_EVENT_TABLE()
 
-void wxDataViewDateCellPopupTransient::OnCalendar( wxCalendarEvent &event )
+void wxDataViewDateRendererPopupTransient::OnCalendar( wxCalendarEvent &event )
 {
     wxDateTime date = event.GetDate();
     wxVariant value = date;
-    m_model->SetValue( value, m_col, m_row );
-    m_model->ValueChanged( m_col, m_row );
+    m_model->SetValue( value, m_item, m_col );
+    m_model->ValueChanged( m_item, m_col );
     DismissAndNotify();
 }
 
-IMPLEMENT_ABSTRACT_CLASS(wxDataViewDateCell, wxDataViewCustomCell)
+#endif // wxUSE_DATE_RENDERER_POPUP
 
-wxDataViewDateCell::wxDataViewDateCell( const wxString &varianttype,
-                        wxDataViewCellMode mode ) :
-    wxDataViewCustomCell( varianttype, mode )
+IMPLEMENT_ABSTRACT_CLASS(wxDataViewDateRenderer, wxDataViewCustomRenderer)
+
+wxDataViewDateRenderer::wxDataViewDateRenderer( const wxString &varianttype,
+                        wxDataViewCellMode mode, int align ) :
+    wxDataViewCustomRenderer( varianttype, mode, align )
 {
 }
-    
-bool wxDataViewDateCell::SetValue( const wxVariant &value )
+
+bool wxDataViewDateRenderer::SetValue( const wxVariant &value )
 {
     m_date = value.GetDateTime();
-    
+
+    return true;
+}
+
+bool wxDataViewDateRenderer::GetValue( wxVariant &value ) const
+{
+    value = m_date;
+    return true;
+}
+
+bool wxDataViewDateRenderer::Render( wxRect cell, wxDC *dc, int state )
+{
+    wxString tmp = m_date.FormatDate();
+    RenderText( tmp, 0, cell, dc, state );
+    return true;
+}
+
+wxSize wxDataViewDateRenderer::GetSize() const
+{
+    const wxDataViewCtrl* view = GetView();
+    wxString tmp = m_date.FormatDate();
+    wxCoord x,y,d;
+    view->GetTextExtent( tmp, &x, &y, &d );
+    return wxSize(x,y+d);
+}
+
+bool wxDataViewDateRenderer::Activate( wxRect WXUNUSED(cell), wxDataViewModel *model,
+                                       const wxDataViewItem & item, unsigned int col )
+{
+    wxVariant variant;
+    model->GetValue( variant, item, col );
+    wxDateTime value = variant.GetDateTime();
+
+#if wxUSE_DATE_RENDERER_POPUP
+    wxDataViewDateRendererPopupTransient *popup = new wxDataViewDateRendererPopupTransient(
+        GetOwner()->GetOwner()->GetParent(), &value, model, item, col);
+    wxPoint pos = wxGetMousePosition();
+    popup->Move( pos );
+    popup->Layout();
+    popup->Popup( popup->m_cal );
+#else // !wxUSE_DATE_RENDERER_POPUP
+    wxMessageBox(value.Format());
+#endif // wxUSE_DATE_RENDERER_POPUP/!wxUSE_DATE_RENDERER_POPUP
+    return true;
+}
+
+// ---------------------------------------------------------
+// wxDataViewIconTextRenderer
+// ---------------------------------------------------------
+
+IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewCustomRenderer)
+
+wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
+  const wxString &varianttype, wxDataViewCellMode mode, int align ) :
+    wxDataViewCustomRenderer( varianttype, mode, align )
+{
+    SetMode(mode);
+    SetAlignment(align);
+}
+
+wxDataViewIconTextRenderer::~wxDataViewIconTextRenderer()
+{
+}
+
+bool wxDataViewIconTextRenderer::SetValue( const wxVariant &value )
+{
+    m_value << value;
+    return true;
+}
+
+bool wxDataViewIconTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
+{
+    return false;
+}
+
+bool wxDataViewIconTextRenderer::Render( wxRect cell, wxDC *dc, int state )
+{
+    int xoffset = 0;
+    const wxIcon &icon = m_value.GetIcon();
+    if (icon.IsOk())
+    {
+        dc->DrawIcon( icon, cell.x, cell.y + ((cell.height - icon.GetHeight()) / 2));
+        xoffset =  icon.GetWidth()+4;
+    }
+
+    RenderText( m_value.GetText(), xoffset, cell, dc, state );
+
+    return true;
+}
+
+wxSize wxDataViewIconTextRenderer::GetSize() const
+{
+    const wxDataViewCtrl *view = GetView();
+    if (!m_value.GetText().empty())
+    {
+        int x,y;
+        view->GetTextExtent( m_value.GetText(), &x, &y );
+
+        if (m_value.GetIcon().IsOk())
+            x += m_value.GetIcon().GetWidth() + 4;
+        return wxSize( x, y );
+    }
+    return wxSize(80,20);
+}
+
+wxControl *
+wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow * WXUNUSED(parent),
+                                             wxRect WXUNUSED(labelRect),
+                                             const wxVariant& WXUNUSED(value))
+{
+    return NULL;
+}
+
+bool
+wxDataViewIconTextRenderer::GetValueFromEditorCtrl(wxControl* WXUNUSED(editor),
+                                                   wxVariant& WXUNUSED(value))
+{
+    return false;
+}
+
+//-----------------------------------------------------------------------------
+// wxDataViewRenameTimer
+//-----------------------------------------------------------------------------
+
+wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
+{
+    m_owner = owner;
+}
+
+void wxDataViewRenameTimer::Notify()
+{
+    m_owner->OnRenameTimer();
+}
+
+//-----------------------------------------------------------------------------
+// wxDataViewMainWindow
+//-----------------------------------------------------------------------------
+
+//The tree building helper, declared firstly
+static void BuildTreeHelper( wxDataViewModel * model,  wxDataViewItem & item, wxDataViewTreeNode * node);
+
+int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
+{
+    if (row1 > row2) return 1;
+    if (row1 == row2) return 0;
+    return -1;
+}
+
+
+IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
+
+BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)
+    EVT_PAINT         (wxDataViewMainWindow::OnPaint)
+    EVT_MOUSE_EVENTS  (wxDataViewMainWindow::OnMouse)
+    EVT_SET_FOCUS     (wxDataViewMainWindow::OnSetFocus)
+    EVT_KILL_FOCUS    (wxDataViewMainWindow::OnKillFocus)
+    EVT_CHAR          (wxDataViewMainWindow::OnChar)
+END_EVENT_TABLE()
+
+wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID id,
+    const wxPoint &pos, const wxSize &size, const wxString &name ) :
+    wxWindow( parent, id, pos, size, wxWANTS_CHARS|wxBORDER_NONE, name ),
+    m_selection( wxDataViewSelectionCmp )
+
+{
+    SetOwner( parent );
+
+    m_lastOnSame = false;
+    m_renameTimer = new wxDataViewRenameTimer( this );
+
+    // TODO: user better initial values/nothing selected
+    m_currentCol = NULL;
+    m_currentRow = 0;
+
+    m_lineHeight = wxMax( 17, GetCharHeight() + 2 ); // 17 = mini icon height + 1
+
+    m_dragCount = 0;
+    m_dragStart = wxPoint(0,0);
+    m_lineLastClicked = (unsigned int) -1;
+    m_lineBeforeLastClicked = (unsigned int) -1;
+    m_lineSelectSingleOnUp = (unsigned int) -1;
+
+    m_hasFocus = false;
+
+    SetBackgroundColour( *wxWHITE );
+
+    SetBackgroundStyle(wxBG_STYLE_CUSTOM);
+
+    m_penRule = wxPen(GetRuleColour());
+
+    //Here I compose a pen can draw black lines, maybe there are something system colour to use
+    m_penExpander = wxPen(wxColour(0,0,0));
+    //Some new added code to deal with the tree structure
+    m_root = new wxDataViewTreeNode( NULL );
+    m_root->SetHasChildren(true);
+
+    //Make m_count = -1 will cause the class recaculate the real displaying number of rows.
+    m_count = -1;
+    m_underMouse = NULL;
+    UpdateDisplay();
+}
+
+wxDataViewMainWindow::~wxDataViewMainWindow()
+{
+    DestroyTree();
+    delete m_renameTimer;
+}
+
+void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
+{
+    wxDataViewModel *model = GetOwner()->GetModel();
+    wxAutoBufferedPaintDC dc( this );
+
+#ifdef __WXMSW__
+    dc.SetPen( *wxTRANSPARENT_PEN );
+    dc.SetBrush( wxBrush( GetBackgroundColour()) );
+    dc.SetBrush( *wxWHITE_BRUSH );
+    wxSize size( GetClientSize() );
+    dc.DrawRectangle( 0,0,size.x,size.y );
+#endif
+
+    // prepare the DC
+    GetOwner()->PrepareDC( dc );
+    dc.SetFont( GetFont() );
+
+    wxRect update = GetUpdateRegion().GetBox();
+    m_owner->CalcUnscrolledPosition( update.x, update.y, &update.x, &update.y );
+
+    // compute which items needs to be redrawn
+    unsigned int item_start = GetLineAt( wxMax(0,update.y) );
+    unsigned int item_count =
+        wxMin( (int)(  GetLineAt( wxMax(0,update.y+update.height) ) - item_start + 1),
+               (int)(GetRowCount( ) - item_start));
+    unsigned int item_last = item_start + item_count;
+
+    // compute which columns needs to be redrawn
+    unsigned int cols = GetOwner()->GetColumnCount();
+    unsigned int col_start = 0;
+    unsigned int x_start;
+    for (x_start = 0; col_start < cols; col_start++)
+    {
+        wxDataViewColumn *col = GetOwner()->GetColumnAt(col_start);
+        if (col->IsHidden())
+            continue;      // skip it!
+
+        unsigned int w = col->GetWidth();
+        if (x_start+w >= (unsigned int)update.x)
+            break;
+
+        x_start += w;
+    }
+
+    unsigned int col_last = col_start;
+    unsigned int x_last = x_start;
+    for (; col_last < cols; col_last++)
+    {
+        wxDataViewColumn *col = GetOwner()->GetColumnAt(col_last);
+        if (col->IsHidden())
+            continue;      // skip it!
+
+        if (x_last > (unsigned int)update.GetRight())
+            break;
+
+        x_last += col->GetWidth();
+    }
+
+    // Draw horizontal rules if required
+    if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
+    {
+        dc.SetPen(m_penRule);
+        dc.SetBrush(*wxTRANSPARENT_BRUSH);
+
+        for (unsigned int i = item_start; i <= item_last+1; i++)
+        {
+            int y = GetLineStart( i );
+            dc.DrawLine(x_start, y, x_last, y);
+        }
+    }
+
+    // Draw vertical rules if required
+    if ( m_owner->HasFlag(wxDV_VERT_RULES) )
+    {
+        dc.SetPen(m_penRule);
+        dc.SetBrush(*wxTRANSPARENT_BRUSH);
+
+        int x = x_start;
+        for (unsigned int i = col_start; i < col_last; i++)
+        {
+            wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
+            if (col->IsHidden())
+                continue;       // skip it
+
+            dc.DrawLine(x, GetLineStart( item_start ),
+                        x, GetLineStart( item_last ) );
+
+            x += col->GetWidth();
+        }
+
+        // Draw last vertical rule
+        dc.DrawLine(x, GetLineStart( item_start ),
+                    x, GetLineStart( item_last ) );
+    }
+
+    // redraw the background for the items which are selected/current
+    for (unsigned int item = item_start; item < item_last; item++)
+    {
+        bool selected = m_selection.Index( item ) != wxNOT_FOUND;
+        if (selected || item == m_currentRow)
+        {
+            int flags = selected ? (int)wxCONTROL_SELECTED : 0;
+            if (item == m_currentRow)
+                flags |= wxCONTROL_CURRENT;
+            if (m_hasFocus)
+                flags |= wxCONTROL_FOCUSED;
+
+            wxRect rect( x_start, GetLineStart( item ), x_last, GetLineHeight( item ) );
+            wxRendererNative::Get().DrawItemSelectionRect
+                                (
+                                    this,
+                                    dc,
+                                    rect,
+                                    flags
+                                );
+        }
+    }
+
+    wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
+    if (!expander)
+    {
+        // TODO-RTL: last column for RTL support
+        expander = GetOwner()->GetColumnAt( 0 );
+        GetOwner()->SetExpanderColumn(expander);
+    }
+
+    // redraw all cells for all rows which must be repainted and all columns
+    wxRect cell_rect;
+    cell_rect.x = x_start;
+    for (unsigned int i = col_start; i < col_last; i++)
+    {
+
+        wxDataViewColumn *col = GetOwner()->GetColumnAt( i );
+        wxDataViewRenderer *cell = col->GetRenderer();
+        cell_rect.width = col->GetWidth();
+
+        if (col->IsHidden())
+            continue;       // skip it!
+
+        for (unsigned int item = item_start; item < item_last; item++)
+        {
+            // get the cell value and set it into the renderer
+            wxVariant value;
+            wxDataViewTreeNode *node = NULL;
+            wxDataViewItem dataitem;
+
+            if (!IsVirtualList())
+            {
+                node = GetTreeNodeByRow(item);
+                if( node == NULL )
+                    continue;
+
+                dataitem = node->GetItem();
+
+                if ((i > 0) && model->IsContainer(dataitem) && !model->HasContainerColumns(dataitem))
+                    continue;
+            }
+            else
+            {
+                dataitem = wxDataViewItem( wxUIntToPtr(item) );
+            }
+
+            model->GetValue( value, dataitem, col->GetModelColumn());
+            cell->SetValue( value );
+
+            if (cell->GetWantsAttr())
+            {
+                wxDataViewItemAttr attr;
+                bool ret = model->GetAttr( dataitem, col->GetModelColumn(), attr );
+                if (ret)
+                    cell->SetAttr( attr );
+                cell->SetHasAttr( ret );
+            }
+
+            // update cell_rect
+            cell_rect.y = GetLineStart( item );
+            cell_rect.height = GetLineHeight( item );     // -1 is for the horizontal rules (?)
+
+            //Draw the expander here.
+            int indent = 0;
+            if ((!IsVirtualList()) && (col == expander))
+            {
+                indent = node->GetIndentLevel();
+
+                //Calculate the indent first
+                indent = cell_rect.x + GetOwner()->GetIndent() * indent;
+
+                int expander_width = m_lineHeight - 2*EXPANDER_MARGIN;
+                // change the cell_rect.x to the appropriate pos
+                int  expander_x = indent + EXPANDER_MARGIN;
+                int expander_y = cell_rect.y + EXPANDER_MARGIN + (GetLineHeight(item) / 2) - (expander_width/2) - EXPANDER_OFFSET;
+                indent = indent + m_lineHeight;  //try to use the m_lineHeight as the expander space
+                dc.SetPen( m_penExpander );
+                dc.SetBrush( wxNullBrush );
+                if( node->HasChildren() )
+                {
+                    wxRect rect( expander_x , expander_y, expander_width, expander_width);
+                    int flag = 0;
+                    if (m_underMouse == node)
+                    {
+                        flag |= wxCONTROL_CURRENT;
+                    }
+                    if( node->IsOpen() )
+                        wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag|wxCONTROL_EXPANDED );
+                    else
+                        wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
+                }
+                 //force the expander column to left-center align
+                 cell->SetAlignment( wxALIGN_CENTER_VERTICAL );
+            }
+            if (node && !node->HasChildren())
+            {
+                // Yes, if the node does not have any child, it must be a leaf which
+                // mean that it is a temporarily created by GetTreeNodeByRow
+                wxDELETE(node);
+            }
+
+            // cannot be bigger than allocated space
+            wxSize size = cell->GetSize();
+            // Because of the tree structure indent, here we should minus the width of the cell for drawing
+            size.x = wxMin( size.x + 2*PADDING_RIGHTLEFT, cell_rect.width - indent );
+            // size.y = wxMin( size.y, cell_rect.height );
+            size.y = cell_rect.height;
+
+            wxRect item_rect(cell_rect.GetTopLeft(), size);
+            int align = cell->CalculateAlignment();
+
+            // horizontal alignment:
+            item_rect.x = cell_rect.x;
+            if (align & wxALIGN_CENTER_HORIZONTAL)
+                item_rect.x = cell_rect.x + (cell_rect.width / 2) - (size.x / 2);
+            else if (align & wxALIGN_RIGHT)
+                item_rect.x = cell_rect.x + cell_rect.width - size.x;
+            //else: wxALIGN_LEFT is the default
+
+            // vertical alignment:
+            item_rect.y = cell_rect.y;
+            if (align & wxALIGN_CENTER_VERTICAL)
+                item_rect.y = cell_rect.y + (cell_rect.height / 2) - (size.y / 2);
+            else if (align & wxALIGN_BOTTOM)
+                item_rect.y = cell_rect.y + cell_rect.height - size.y;
+            //else: wxALIGN_TOP is the default
+
+            // add padding
+            item_rect.x += PADDING_RIGHTLEFT;
+            item_rect.width = size.x - 2 * PADDING_RIGHTLEFT;
+
+            //Here we add the tree indent
+            item_rect.x += indent;
+
+            int state = 0;
+            if (m_hasFocus && (m_selection.Index(item) != wxNOT_FOUND))
+                state |= wxDATAVIEW_CELL_SELECTED;
+
+            // TODO: it would be much more efficient to create a clipping
+            //       region for the entire column being rendered (in the OnPaint
+            //       of wxDataViewMainWindow) instead of a single clip region for
+            //       each cell. However it would mean that each renderer should
+            //       respect the given wxRect's top & bottom coords, eventually
+            //       violating only the left & right coords - however the user can
+            //       make its own renderer and thus we cannot be sure of that.
+            dc.SetClippingRegion( item_rect );
+            cell->Render( item_rect, &dc, state );
+            dc.DestroyClippingRegion();
+        }
+
+        cell_rect.x += cell_rect.width;
+    }
+}
+
+void wxDataViewMainWindow::OnRenameTimer()
+{
+    // We have to call this here because changes may just have
+    // been made and no screen update taken place.
+    if ( m_dirty )
+        wxSafeYield();
+
+    int xpos = 0;
+    unsigned int cols = GetOwner()->GetColumnCount();
+    unsigned int i;
+    for (i = 0; i < cols; i++)
+    {
+        wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
+        if (c->IsHidden())
+            continue;      // skip it!
+
+        if (c == m_currentCol)
+            break;
+        xpos += c->GetWidth();
+    }
+    wxRect labelRect( xpos,
+                      GetLineStart( m_currentRow ),
+                      m_currentCol->GetWidth(),
+                      GetLineHeight( m_currentRow ) );
+
+    GetOwner()->CalcScrolledPosition( labelRect.x, labelRect.y,
+                                     &labelRect.x, &labelRect.y);
+
+    wxDataViewItem item = GetItemByRow( m_currentRow );
+    m_currentCol->GetRenderer()->StartEditing( item, labelRect );
+
+}
+
+//------------------------------------------------------------------
+// Helper class for do operation on the tree node
+//------------------------------------------------------------------
+class DoJob
+{
+public:
+    DoJob() { }
+    virtual ~DoJob() { }
+
+    //The return value control how the tree-walker tranverse the tree
+    // 0: Job done, stop tranverse and return
+    // 1: Ignore the current node's subtree and continue
+    // 2: Job not done, continue
+    enum  { OK = 0 , IGR = 1, CONT = 2 };
+    virtual int operator() ( wxDataViewTreeNode * node ) = 0;
+    virtual int operator() ( void * n ) = 0;
+};
+
+bool Walker( wxDataViewTreeNode * node, DoJob & func )
+{
+    if( node==NULL )
+        return false;
+
+    switch( func( node ) )
+    {
+        case DoJob::OK :
+            return true;
+        case DoJob::IGR:
+            return false;
+        case DoJob::CONT:
+        default:
+            ;
+    }
+
+    wxDataViewTreeNodes nodes = node->GetNodes();
+    wxDataViewTreeLeaves leaves = node->GetChildren();
+
+    int len_nodes = nodes.GetCount();
+    int len = leaves.GetCount();
+    int i = 0, nodes_i = 0;
+
+    for(; i < len; i ++ )
+    {
+        void * n = leaves[i];
+        if( nodes_i < len_nodes && n == nodes[nodes_i]->GetItem().GetID() )
+        {
+            wxDataViewTreeNode * nd = nodes[nodes_i];
+            nodes_i++;
+
+            if( Walker( nd , func ) )
+                return true;
+
+        }
+        else
+            switch( func( n ) )
+            {
+                case DoJob::OK :
+                    return true;
+                case DoJob::IGR:
+                    continue;
+                case DoJob::CONT:
+                default:
+                   ;
+            }
+    }
+    return false;
+}
+
+bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
+{
+    if (!m_root)
+    {
+        m_count++;
+        UpdateDisplay();
+        return true;
+    }
+
+    SortPrepare();
+
+    wxDataViewTreeNode * node;
+    node = FindNode(parent);
+
+    if( node == NULL )
+        return false;
+
+    node->SetHasChildren( true );
+
+    if( g_model->IsContainer( item ) )
+    {
+        wxDataViewTreeNode * newnode = new wxDataViewTreeNode( node );
+        newnode->SetItem(item);
+        newnode->SetHasChildren( true );
+        node->AddNode( newnode);
+    }
+    else
+        node->AddLeaf( item.GetID() );
+
+    node->ChangeSubTreeCount(1);
+
+    m_count = -1;
+    UpdateDisplay();
+
+    return true;
+}
+
+static void DestroyTreeHelper( wxDataViewTreeNode * node);
+
+bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
+                                       const wxDataViewItem& item)
+{
+    if (!m_root)
+    {
+        m_count--;
+        if( m_currentRow > GetRowCount() )
+            m_currentRow = m_count - 1;
+
+        m_selection.Empty();
+
+        UpdateDisplay();
+
+        return true;
+    }
+
+    wxDataViewTreeNode * node = FindNode(parent);
+
+    wxCHECK_MSG( node != NULL, false, "item not found" );
+    wxCHECK_MSG( node->GetChildren().Index( item.GetID() ) != wxNOT_FOUND, false, "item not found" );
+
+    int sub = -1;
+    node->GetChildren().Remove( item.GetID() );
+    //Manuplate selection
+    if( m_selection.GetCount() > 1 )
+    {
+        m_selection.Empty();
+    }
+    bool isContainer = false;
+    wxDataViewTreeNodes nds = node->GetNodes();
+    for (size_t i = 0; i < nds.GetCount(); i ++)
+    {
+        if (nds[i]->GetItem() == item)
+        {
+            isContainer = true;
+            break;
+        }
+    }
+    if( isContainer )
+    {
+        wxDataViewTreeNode * n = NULL;
+        wxDataViewTreeNodes nodes = node->GetNodes();
+        int len = nodes.GetCount();
+        for( int i = 0; i < len; i ++)
+        {
+            if( nodes[i]->GetItem() == item )
+            {
+                n = nodes[i];
+                break;
+            }
+        }
+
+        wxCHECK_MSG( n != NULL, false, "item not found" );
+
+        node->GetNodes().Remove( n );
+        sub -= n->GetSubTreeCount();
+        ::DestroyTreeHelper(n);
+    }
+    //Make the row number invalid and get a new valid one when user call GetRowCount
+    m_count = -1;
+    node->ChangeSubTreeCount(sub);
+
+    //Change the current row to the last row if the current exceed the max row number
+    if( m_currentRow > GetRowCount() )
+        m_currentRow = m_count - 1;
+
+    UpdateDisplay();
+
+    return true;
+}
+
+bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
+{
+    SortPrepare();
+    g_model->Resort();
+
+    //Send event
+    wxWindow *parent = GetParent();
+    wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
+    le.SetEventObject(parent);
+    le.SetModel(GetOwner()->GetModel());
+    le.SetItem(item);
+    parent->GetEventHandler()->ProcessEvent(le);
+
+    return true;
+}
+
+bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int col )
+{
+    // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
+/*#define MAX_VIRTUAL_WIDTH       100000
+
+    wxRect rect( 0, row*m_lineHeight, MAX_VIRTUAL_WIDTH, m_lineHeight );
+    m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
+    Refresh( true, &rect );
+
+    return true;
+*/
+    SortPrepare();
+    g_model->Resort();
+
+    //Send event
+    wxWindow *parent = GetParent();
+    wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
+    le.SetEventObject(parent);
+    le.SetModel(GetOwner()->GetModel());
+    le.SetItem(item);
+    le.SetColumn(col);
+    le.SetDataViewColumn(GetOwner()->GetColumn(col));
+    parent->GetEventHandler()->ProcessEvent(le);
+
+    return true;
+}
+
+bool wxDataViewMainWindow::Cleared()
+{
+    DestroyTree();
+
+    SortPrepare();
+    BuildTree( GetOwner()->GetModel() );
+
+    UpdateDisplay();
+
+    return true;
+}
+
+void wxDataViewMainWindow::UpdateDisplay()
+{
+    m_dirty = true;
+}
+
+void wxDataViewMainWindow::OnInternalIdle()
+{
+    wxWindow::OnInternalIdle();
+
+    if (m_dirty)
+    {
+        RecalculateDisplay();
+        m_dirty = false;
+    }
+}
+
+void wxDataViewMainWindow::RecalculateDisplay()
+{
+    wxDataViewModel *model = GetOwner()->GetModel();
+    if (!model)
+    {
+        Refresh();
+        return;
+    }
+
+    int width = GetEndOfLastCol();
+    int height = GetLineStart( GetRowCount() );
+
+    SetVirtualSize( width, height );
+    GetOwner()->SetScrollRate( 10, m_lineHeight );
+
+    Refresh();
+}
+
+void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
+{
+    wxWindow::ScrollWindow( dx, dy, rect );
+
+    if (GetOwner()->m_headerArea)
+        GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
+}
+
+void wxDataViewMainWindow::ScrollTo( int rows, int column )
+{
+    int x, y;
+    m_owner->GetScrollPixelsPerUnit( &x, &y );
+    int sy = GetLineStart( rows )/y;
+    int sx = 0;
+    if( column != -1 )
+    {
+        wxRect rect = GetClientRect();
+        int colnum = 0;
+        int x_start, w = 0;
+        int xx, yy, xe;
+        m_owner->CalcUnscrolledPosition( rect.x, rect.y, &xx, &yy );
+        for (x_start = 0; colnum < column; colnum++)
+        {
+            wxDataViewColumn *col = GetOwner()->GetColumnAt(colnum);
+            if (col->IsHidden())
+                continue;      // skip it!
+
+            w = col->GetWidth();
+            x_start += w;
+        }
+
+        int x_end = x_start + w;
+        xe = xx + rect.width;
+        if( x_end > xe )
+        {
+            sx = ( xx + x_end - xe )/x;
+        }
+        if( x_start < xx )
+        {
+            sx = x_start/x;
+        }
+    }
+    m_owner->Scroll( sx, sy );
+}
+
+int wxDataViewMainWindow::GetCountPerPage() const
+{
+    wxSize size = GetClientSize();
+    return size.y / m_lineHeight;
+}
+
+int wxDataViewMainWindow::GetEndOfLastCol() const
+{
+    int width = 0;
+    unsigned int i;
+    for (i = 0; i < GetOwner()->GetColumnCount(); i++)
+    {
+        const wxDataViewColumn *c =
+            const_cast<wxDataViewCtrl*>(GetOwner())->GetColumnAt( i );
+
+        if (!c->IsHidden())
+            width += c->GetWidth();
+    }
+    return width;
+}
+
+unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
+{
+    int x = 0;
+    int y = 0;
+    m_owner->CalcUnscrolledPosition( x, y, &x, &y );
+
+    return GetLineAt( y );
+}
+
+unsigned int wxDataViewMainWindow::GetLastVisibleRow()
+{
+    wxSize client_size = GetClientSize();
+    m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,
+                                     &client_size.x, &client_size.y );
+
+    //we should deal with the pixel here
+    unsigned int row = GetLineAt(client_size.y) - 1;
+
+    return wxMin( GetRowCount()-1, row );
+}
+
+unsigned int wxDataViewMainWindow::GetRowCount()
+{
+    if ( m_count == -1 )
+    {
+        m_count = RecalculateCount();
+        UpdateDisplay();
+    }
+    return m_count;
+}
+
+void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
+{
+    m_currentRow = row;
+
+    // send event
+}
+
+void wxDataViewMainWindow::SelectAllRows( bool on )
+{
+    if (IsEmpty())
+        return;
+
+    if (on)
+    {
+        m_selection.Clear();
+        for (unsigned int i = 0; i < GetRowCount(); i++)
+            m_selection.Add( i );
+        Refresh();
+    }
+    else
+    {
+        unsigned int first_visible = GetFirstVisibleRow();
+        unsigned int last_visible = GetLastVisibleRow();
+        unsigned int i;
+        for (i = 0; i < m_selection.GetCount(); i++)
+        {
+            unsigned int row = m_selection[i];
+            if ((row >= first_visible) && (row <= last_visible))
+                RefreshRow( row );
+        }
+        m_selection.Clear();
+    }
+}
+
+void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
+{
+    if (m_selection.Index( row ) == wxNOT_FOUND)
+    {
+        if (on)
+        {
+            m_selection.Add( row );
+            RefreshRow( row );
+        }
+    }
+    else
+    {
+        if (!on)
+        {
+            m_selection.Remove( row );
+            RefreshRow( row );
+        }
+    }
+}
+
+void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
+{
+    if (from > to)
+    {
+        unsigned int tmp = from;
+        from = to;
+        to = tmp;
+    }
+
+    unsigned int i;
+    for (i = from; i <= to; i++)
+    {
+        if (m_selection.Index( i ) == wxNOT_FOUND)
+        {
+            if (on)
+                m_selection.Add( i );
+        }
+        else
+        {
+            if (!on)
+                m_selection.Remove( i );
+        }
+    }
+    RefreshRows( from, to );
+}
+
+void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
+{
+    for (size_t i=0; i < aSelections.GetCount(); i++)
+    {
+        int n = aSelections[i];
+
+        m_selection.Add( n );
+        RefreshRow( n );
+    }
+}
+
+void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
+{
+    if (m_selection.Index( row ) == wxNOT_FOUND)
+        m_selection.Add( row );
+    else
+        m_selection.Remove( row );
+    RefreshRow( row );
+}
+
+bool wxDataViewMainWindow::IsRowSelected( unsigned int row )
+{
+    return (m_selection.Index( row ) != wxNOT_FOUND);
+}
+
+void wxDataViewMainWindow::SendSelectionChangedEvent( const wxDataViewItem& item)
+{
+    wxWindow *parent = GetParent();
+    wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, parent->GetId());
+
+    le.SetEventObject(parent);
+    le.SetModel(GetOwner()->GetModel());
+    le.SetItem( item );
+
+    parent->GetEventHandler()->ProcessEvent(le);
+}
+
+void wxDataViewMainWindow::RefreshRow( unsigned int row )
+{
+    wxRect rect( 0, GetLineStart( row ), GetEndOfLastCol(), GetLineHeight( row ) );
+    m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
+
+    wxSize client_size = GetClientSize();
+    wxRect client_rect( 0, 0, client_size.x, client_size.y );
+    wxRect intersect_rect = client_rect.Intersect( rect );
+    if (intersect_rect.width > 0)
+        Refresh( true, &intersect_rect );
+}
+
+void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
+{
+    if (from > to)
+    {
+        unsigned int tmp = to;
+        to = from;
+        from = tmp;
+    }
+
+    wxRect rect( 0, GetLineStart( from ), GetEndOfLastCol(), GetLineStart( (to-from+1) ) );
+    m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
+
+    wxSize client_size = GetClientSize();
+    wxRect client_rect( 0, 0, client_size.x, client_size.y );
+    wxRect intersect_rect = client_rect.Intersect( rect );
+    if (intersect_rect.width > 0)
+        Refresh( true, &intersect_rect );
+}
+
+void wxDataViewMainWindow::RefreshRowsAfter( unsigned int firstRow )
+{
+    wxSize client_size = GetClientSize();
+    int start = GetLineStart( firstRow );
+    m_owner->CalcScrolledPosition( start, 0, &start, NULL );
+    if (start > client_size.y) return;
+
+    wxRect rect( 0, start, client_size.x, client_size.y - start );
+
+    Refresh( true, &rect );
+}
+
+void wxDataViewMainWindow::OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event)
+{
+    wxCHECK_RET( newCurrent < GetRowCount(),
+                 _T("invalid item index in OnArrowChar()") );
+
+    // if there is no selection, we cannot move it anywhere
+    if (!HasCurrentRow())
+        return;
+
+    unsigned int oldCurrent = m_currentRow;
+
+    // in single selection we just ignore Shift as we can't select several
+    // items anyhow
+    if ( event.ShiftDown() && !IsSingleSel() )
+    {
+        RefreshRow( oldCurrent );
+
+        ChangeCurrentRow( newCurrent );
+
+        // select all the items between the old and the new one
+        if ( oldCurrent > newCurrent )
+        {
+            newCurrent = oldCurrent;
+            oldCurrent = m_currentRow;
+        }
+
+        SelectRows( oldCurrent, newCurrent, true );
+        if (oldCurrent!=newCurrent)
+            SendSelectionChangedEvent(GetItemByRow(m_selection[0]));
+    }
+    else // !shift
+    {
+        RefreshRow( oldCurrent );
+
+        // all previously selected items are unselected unless ctrl is held
+        if ( !event.ControlDown() )
+            SelectAllRows(false);
+
+        ChangeCurrentRow( newCurrent );
+
+        if ( !event.ControlDown() )
+        {
+            SelectRow( m_currentRow, true );
+            SendSelectionChangedEvent(GetItemByRow(m_currentRow));
+        }
+        else
+            RefreshRow( m_currentRow );
+    }
+
+    GetOwner()->EnsureVisible( m_currentRow, -1 );
+}
+
+wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
+{
+    wxRect rect;
+    rect.x = 0;
+    rect.y = GetLineStart( row );
+    rect.width = GetEndOfLastCol();
+    rect.height = GetLineHeight( row );
+
+    return rect;
+}
+
+int wxDataViewMainWindow::GetLineStart( unsigned int row ) const
+{
+    const wxDataViewModel *model = GetOwner()->GetModel();
+
+    if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
+    {
+        // TODO make more efficient
+
+        int start = 0;
+
+        unsigned int r;
+        for (r = 0; r < row; r++)
+        {
+            const wxDataViewTreeNode* node = GetTreeNodeByRow(r);
+            if (!node) return start;
+
+            wxDataViewItem item = node->GetItem();
+
+            if (node && !node->HasChildren())
+            {
+                // Yes, if the node does not have any child, it must be a leaf which
+                // mean that it is a temporarily created by GetTreeNodeByRow
+                wxDELETE(node);
+            }
+
+            unsigned int cols = GetOwner()->GetColumnCount();
+            unsigned int col;
+            int height = m_lineHeight;
+            for (col = 0; col < cols; col++)
+            {
+                const wxDataViewColumn *column = GetOwner()->GetColumn(col);
+                if (column->IsHidden())
+                    continue;      // skip it!
+
+                if ((col != 0) && model->IsContainer(item) && !model->HasContainerColumns(item))
+                    continue;      // skip it!
+
+                const wxDataViewRenderer *renderer = column->GetRenderer();
+                wxVariant value;
+                model->GetValue( value, item, column->GetModelColumn() );
+                wxDataViewRenderer *renderer2 = const_cast<wxDataViewRenderer*>(renderer);
+                renderer2->SetValue( value );
+                height = wxMax( height, renderer->GetSize().y );
+            }
+
+
+            start += height;
+        }
+
+        return start;
+    }
+    else
+    {
+        return row * m_lineHeight;
+    }
+}
+
+int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
+{
+    const wxDataViewModel *model = GetOwner()->GetModel();
+
+    // check for the easy case first
+    if ( !GetOwner()->HasFlag(wxDV_VARIABLE_LINE_HEIGHT) )
+        return y / m_lineHeight;
+
+    // TODO make more efficient
+    unsigned int row = 0;
+    unsigned int yy = 0;
+    for (;;)
+    {
+       const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
+       if (!node)
+       {
+           // not really correct...
+           return row + ((y-yy) / m_lineHeight);
+       }
+
+       wxDataViewItem item = node->GetItem();
+
+        if (node && !node->HasChildren())
+        {
+            // Yes, if the node does not have any child, it must be a leaf which
+            // mean that it is a temporarily created by GetTreeNodeByRow
+            wxDELETE(node);
+        }
+
+       unsigned int cols = GetOwner()->GetColumnCount();
+       unsigned int col;
+       int height = m_lineHeight;
+       for (col = 0; col < cols; col++)
+       {
+            const wxDataViewColumn *column = GetOwner()->GetColumn(col);
+            if (column->IsHidden())
+                continue;      // skip it!
+
+            if ((col != 0) && model->IsContainer(item) && !model->HasContainerColumns(item))
+                continue;      // skip it!
+
+            const wxDataViewRenderer *renderer = column->GetRenderer();
+            wxVariant value;
+            model->GetValue( value, item, column->GetModelColumn() );
+            wxDataViewRenderer *renderer2 = const_cast<wxDataViewRenderer*>(renderer);
+            renderer2->SetValue( value );
+            height = wxMax( height, renderer->GetSize().y );
+       }
+
+       yy += height;
+       if (y < yy)
+           return row;
+
+       row++;
+    }
+}
+
+int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
+{
+    const wxDataViewModel *model = GetOwner()->GetModel();
+
+    if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
+    {
+        wxASSERT( !IsVirtualList() );
+
+        const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
+        // wxASSERT( node );
+        if (!node) return m_lineHeight;
+
+        wxDataViewItem item = node->GetItem();
+
+        if (node && !node->HasChildren())
+        {
+                // Yes, if the node does not have any child, it must be a leaf which
+                // mean that it is a temporarily created by GetTreeNodeByRow
+             wxDELETE(node);
+        }
+
+        int height = m_lineHeight;
+
+        unsigned int cols = GetOwner()->GetColumnCount();
+        unsigned int col;
+        for (col = 0; col < cols; col++)
+        {
+            const wxDataViewColumn *column = GetOwner()->GetColumn(col);
+            if (column->IsHidden())
+                continue;      // skip it!
+
+            if ((col != 0) && model->IsContainer(item) && !model->HasContainerColumns(item))
+                continue;      // skip it!
+
+            const wxDataViewRenderer *renderer = column->GetRenderer();
+            wxVariant value;
+            model->GetValue( value, item, column->GetModelColumn() );
+            wxDataViewRenderer *renderer2 = const_cast<wxDataViewRenderer*>(renderer);
+            renderer2->SetValue( value );
+            height = wxMax( height, renderer->GetSize().y );
+        }
+
+        return height;
+    }
+    else
+    {
+        return m_lineHeight;
+    }
+}
+
+class RowToItemJob: public DoJob
+{
+public:
+    RowToItemJob( unsigned int row , int current ) { this->row = row; this->current = current;}
+    virtual ~RowToItemJob() { }
+
+    virtual int operator() ( wxDataViewTreeNode * node )
+    {
+        current ++;
+        if( current == static_cast<int>(row))
+         {
+            ret = node->GetItem();
+            return DoJob::OK;
+        }
+
+        if( node->GetSubTreeCount() + current < static_cast<int>(row) )
+        {
+            current += node->GetSubTreeCount();
+            return  DoJob::IGR;
+        }
+        else
+        {
+            //If the current has no child node, we can find the desired item of the row number directly.
+            //This if can speed up finding in some case, and will has a very good effect when it comes to list view
+            if( node->GetNodes().GetCount() == 0)
+            {
+                int index = static_cast<int>(row) - current - 1;
+                ret = node->GetChildren().Item( index );
+                return DoJob::OK;
+            }
+            return DoJob::CONT;
+        }
+    }
+
+    virtual int operator() ( void * n )
+    {
+        current ++;
+        if( current == static_cast<int>(row))
+         {
+            ret = wxDataViewItem( n );
+            return DoJob::OK;
+        }
+        return DoJob::CONT;
+    }
+    wxDataViewItem GetResult(){ return ret; }
+private:
+    unsigned int row;
+    int current;
+    wxDataViewItem ret;
+};
+
+wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
+{
+    if (!m_root)
+    {
+        return wxDataViewItem( wxUIntToPtr(row) );
+    }
+    else
+    {
+        RowToItemJob job( row, -2 );
+        Walker( m_root , job );
+        return job.GetResult();
+    }
+}
+
+class RowToTreeNodeJob: public DoJob
+{
+public:
+    RowToTreeNodeJob( unsigned int row , int current, wxDataViewTreeNode * node )
+    {
+        this->row = row;
+        this->current = current;
+        ret = NULL;
+        parent = node;
+    }
+    virtual ~RowToTreeNodeJob(){ }
+
+    virtual int operator() ( wxDataViewTreeNode * node )
+    {
+        current ++;
+        if( current == static_cast<int>(row))
+         {
+            ret = node;
+            return DoJob::OK;
+        }
+
+        if( node->GetSubTreeCount() + current < static_cast<int>(row) )
+        {
+            current += node->GetSubTreeCount();
+            return  DoJob::IGR;
+        }
+        else
+        {
+            parent = node;
+            //If the current has no child node, we can find the desired item of the row number directly.
+            //This if can speed up finding in some case, and will has a very good effect when it comes to list view
+            if( node->GetNodes().GetCount() == 0)
+            {
+                int index = static_cast<int>(row) - current - 1;
+                void * n = node->GetChildren().Item( index );
+                ret = new wxDataViewTreeNode( parent );
+                ret->SetItem( wxDataViewItem( n ));
+                ret->SetHasChildren(false);
+                return DoJob::OK;
+            }
+            return DoJob::CONT;
+        }
+
+
+    }
+
+    virtual int operator() ( void * n )
+    {
+        current ++;
+        if( current == static_cast<int>(row))
+         {
+            ret = new wxDataViewTreeNode( parent );
+            ret->SetItem( wxDataViewItem( n ));
+            ret->SetHasChildren(false);
+            return DoJob::OK;
+        }
+
+        return DoJob::CONT;
+    }
+    wxDataViewTreeNode * GetResult(){ return ret; }
+private:
+    unsigned int row;
+    int current;
+    wxDataViewTreeNode * ret;
+    wxDataViewTreeNode * parent;
+};
+
+
+wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
+{
+    wxASSERT( !IsVirtualList() );
+
+    RowToTreeNodeJob job( row , -2, m_root );
+    Walker( m_root , job );
+    return job.GetResult();
+}
+
+wxDataViewEvent wxDataViewMainWindow::SendExpanderEvent( wxEventType type, const wxDataViewItem & item )
+{
+    wxWindow *parent = GetParent();
+    wxDataViewEvent le(type, parent->GetId());
+
+    le.SetEventObject(parent);
+    le.SetModel(GetOwner()->GetModel());
+    le.SetItem( item );
+
+    parent->GetEventHandler()->ProcessEvent(le);
+    return le;
+}
+
+
+bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
+{
+    if (IsVirtualList())
+       return false;
+       
+    wxDataViewTreeNode * node = GetTreeNodeByRow(row);
+    if (!node)
+       return false;
+       
+    if (!node->HasChildren())
+       return false;
+    
+    return node->IsOpen();
+}
+
+
+void wxDataViewMainWindow::OnExpanding( unsigned int row )
+{
+    if (IsVirtualList())
+       return;
+
+    wxDataViewTreeNode * node = GetTreeNodeByRow(row);
+    if( node != NULL )
+    {
+        if( node->HasChildren())
+        {
+            if( !node->IsOpen())
+            {
+               wxDataViewEvent e = SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING,node->GetItem());
+               //Check if the user prevent expanding
+               if( e.GetSkipped() )
+                    return;
+
+               node->ToggleOpen();
+               //Here I build the children of current node
+               if( node->GetChildrenNumber() == 0 )
+               {
+                   SortPrepare();
+                   ::BuildTreeHelper(GetOwner()->GetModel(), node->GetItem(), node);
+               }
+               m_count = -1;
+               UpdateDisplay();
+               //Send the expanded event
+               SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());
+            }
+            else
+            {
+                SelectRow( row, false );
+                SelectRow( row + 1, true );
+                ChangeCurrentRow( row + 1 );
+                SendSelectionChangedEvent( GetItemByRow(row+1));
+            }
+        }
+        else
+            delete node;
+    }
+}
+
+void wxDataViewMainWindow::OnCollapsing(unsigned int row)
+{
+    if (IsVirtualList())
+       return;
+
+    wxDataViewTreeNode * node = GetTreeNodeByRow(row);
+    if( node != NULL )
+    {
+        wxDataViewTreeNode * nd = node;
+
+        if( node->HasChildren() && node->IsOpen() )
+        {
+            wxDataViewEvent e = SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem());
+            if( e.GetSkipped() )
+                return;
+            node->ToggleOpen();
+            m_count = -1;
+            UpdateDisplay();
+            SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,nd->GetItem());
+        }
+        else
+        {
+            node = node->GetParent();
+            if( node != NULL )
+            {
+                int  parent = GetRowByItem( node->GetItem() );
+                if( parent >= 0 )
+                {
+                    SelectRow( row, false);
+                    SelectRow(parent , true );
+                    ChangeCurrentRow( parent );
+                    SendSelectionChangedEvent( node->GetItem() );
+                }
+            }
+        }
+        if( !nd->HasChildren())
+            delete nd;
+    }
+}
+
+wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
+{
+    wxDataViewModel * model = GetOwner()->GetModel();
+    if( model == NULL )
+        return NULL;
+
+    //Compose the a parent-chain of the finding item
+    ItemList list;
+    list.DeleteContents( true );
+    wxDataViewItem it( item );
+    while( it.IsOk() )
+    {
+        wxDataViewItem * pItem = new wxDataViewItem( it );
+        list.Insert( pItem );
+        it = model->GetParent( it );
+    }
+
+    //Find the item along the parent-chain.
+    //This algorithm is designed to speed up the node-finding method
+    wxDataViewTreeNode * node = m_root;
+    for( ItemList::const_iterator iter = list.begin(); iter !=list.end(); iter++ )
+    {
+        if( node->HasChildren() )
+        {
+            if( node->GetChildrenNumber() == 0 )
+            {
+                SortPrepare();
+                ::BuildTreeHelper(model, node->GetItem(), node);
+            }
+
+            wxDataViewTreeNodes nodes = node->GetNodes();
+            unsigned int i;
+            bool found = false;
+
+            for (i = 0; i < nodes.GetCount(); i ++)
+            {
+                if (nodes[i]->GetItem() == (**iter))
+                {
+                    if (nodes[i]->GetItem() == item)
+                       return nodes[i];
+
+                    node = nodes[i];
+                    found = true;
+                    break;
+                }
+            }
+            if (!found)
+                return NULL;
+        }
+        else
+            return NULL;
+    }
+    return NULL;
+}
+
+void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column )
+{
+    wxDataViewColumn *col = NULL;
+    unsigned int cols = GetOwner()->GetColumnCount();
+    unsigned int colnum = 0;
+    int x, y;
+    m_owner->CalcUnscrolledPosition( point.x, point.y, &x, &y );
+    for (unsigned x_start = 0; colnum < cols; colnum++)
+    {
+        col = GetOwner()->GetColumnAt(colnum);
+        if (col->IsHidden())
+            continue;      // skip it!
+
+        unsigned int w = col->GetWidth();
+        if (x_start+w >= (unsigned int)x)
+            break;
+
+        x_start += w;
+    }
+
+    column = col;
+    item = GetItemByRow( GetLineAt( y ) );
+}
+
+wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column )
+{
+    int row = GetRowByItem(item);
+    int y = GetLineStart( row );
+    int h = GetLineHeight( m_lineHeight );
+    int x = 0;
+    wxDataViewColumn *col = NULL;
+    for( int i = 0, cols = GetOwner()->GetColumnCount(); i < cols; i ++ )
+    {
+       col = GetOwner()->GetColumnAt( i );
+       x += col->GetWidth();
+       if( GetOwner()->GetColumnAt(i+1) == column )
+           break;
+    }
+    int w = col->GetWidth();
+    m_owner->CalcScrolledPosition( x, y, &x, &y );
+    return wxRect(x, y, w, h);
+}
+
+int wxDataViewMainWindow::RecalculateCount()
+{
+    if (!m_root)
+    {
+        wxDataViewIndexListModel *list_model = (wxDataViewIndexListModel*) GetOwner()->GetModel();
+#ifndef __WXMAC__
+        return list_model->GetLastIndex() + 1;
+#else
+        return list_model->GetLastIndex() - 1;
+#endif
+    }
+    else
+    {
+        return m_root->GetSubTreeCount();
+    }
+}
+
+class ItemToRowJob : public DoJob
+{
+public:
+    ItemToRowJob(const wxDataViewItem& item_, ItemList::const_iterator iter)
+        : m_iter(iter),
+          item(item_)
+    {
+        ret = -1;
+    }
+
+    //Maybe binary search will help to speed up this process
+    virtual int operator() ( wxDataViewTreeNode * node)
+    {
+         ret ++;
+         if( node->GetItem() == item )
+         {
+             return DoJob::OK;
+         }
+
+         if( node->GetItem() == **m_iter )
+         {
+             m_iter++;
+             return DoJob::CONT;
+         }
+         else
+         {
+             ret += node->GetSubTreeCount();
+             return DoJob::IGR;
+         }
+
+    }
+
+    virtual int operator() ( void * n )
+    {
+        ret ++;
+        if( n == item.GetID() )
+            return DoJob::OK;
+        return DoJob::CONT;
+    }
+    //the row number is begin from zero
+    int GetResult() { return ret -1; }
+
+private:
+    ItemList::const_iterator  m_iter;
+    wxDataViewItem item;
+    int ret;
+
+};
+
+int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
+{
+    const wxDataViewModel * model = GetOwner()->GetModel();
+    if( model == NULL )
+        return -1;
+
+    if (!m_root)
+    {
+        return wxPtrToUInt( item.GetID() );
+    }
+    else
+    {
+        if( !item.IsOk() )
+            return -1;
+
+        //Compose the a parent-chain of the finding item
+        ItemList list;
+        wxDataViewItem * pItem;
+        list.DeleteContents( true );
+        wxDataViewItem it( item );
+        while( it.IsOk() )
+        {
+            pItem = new wxDataViewItem( it );
+            list.Insert( pItem );
+            it = model->GetParent( it );
+        }
+        pItem = new wxDataViewItem( );
+        list.Insert( pItem );
+
+        ItemToRowJob job( item, list.begin() );
+        Walker(m_root , job );
+        return job.GetResult();
+    }
+}
+
+static void BuildTreeHelper( wxDataViewModel * model,  wxDataViewItem & item, wxDataViewTreeNode * node)
+{
+    if( !model->IsContainer( item ) )
+        return;
+
+    wxDataViewItemArray children;
+    unsigned int num = model->GetChildren( item, children);
+    unsigned int index = 0;
+    while( index < num )
+    {
+        if( model->IsContainer( children[index] ) )
+        {
+            wxDataViewTreeNode * n = new wxDataViewTreeNode( node );
+            n->SetItem(children[index]);
+            n->SetHasChildren( true );
+            node->AddNode( n );
+        }
+        else
+        {
+            node->AddLeaf( children[index].GetID() );
+        }
+        index ++;
+    }
+    node->SetSubTreeCount( num );
+    wxDataViewTreeNode * n = node->GetParent();
+    if( n != NULL)
+        n->ChangeSubTreeCount(num);
+
+}
+
+void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
+{
+    DestroyTree();
+
+    if (GetOwner()->GetModel()->IsVirtualListModel())
+    {
+        m_count = -1;
+        return;
+    }
+
+    m_root = new wxDataViewTreeNode( NULL );
+    m_root->SetHasChildren(true);
+
+    //First we define a invalid item to fetch the top-level elements
+    wxDataViewItem item;
+    SortPrepare();
+    BuildTreeHelper( model, item, m_root);
+    m_count = -1;
+}
+
+static void DestroyTreeHelper( wxDataViewTreeNode * node )
+{
+    if( node->GetNodeNumber() != 0 )
+    {
+        int len = node->GetNodeNumber();
+        int i = 0;
+        wxDataViewTreeNodes& nodes = node->GetNodes();
+        for(; i < len; i ++ )
+        {
+            DestroyTreeHelper(nodes[i]);
+        }
+    }
+    delete node;
+}
+
+void wxDataViewMainWindow::DestroyTree()
+{
+    if (!IsVirtualList())
+    {
+       ::DestroyTreeHelper(m_root);
+        m_count = 0;
+        m_root = NULL;
+    }
+}
+
+void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
+{
+    if ( GetParent()->HandleAsNavigationKey(event) )
+        return;
+
+    // no item -> nothing to do
+    if (!HasCurrentRow())
+    {
+        event.Skip();
+        return;
+    }
+
+    // don't use m_linesPerPage directly as it might not be computed yet
+    const int pageSize = GetCountPerPage();
+    wxCHECK_RET( pageSize, _T("should have non zero page size") );
+
+    switch ( event.GetKeyCode() )
+    {
+        case WXK_RETURN:
+        {
+            if (m_currentRow >= 0)
+            {
+                wxWindow *parent = GetParent();
+                wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
+                le.SetItem( GetItemByRow(m_currentRow) );
+                le.SetEventObject(parent);
+                le.SetModel(GetOwner()->GetModel());
+
+                parent->GetEventHandler()->ProcessEvent(le);
+            }
+            break;
+        }
+        case WXK_UP:
+            if ( m_currentRow > 0 )
+                OnArrowChar( m_currentRow - 1, event );
+            break;
+
+        case WXK_DOWN:
+            if ( m_currentRow < GetRowCount() - 1 )
+                OnArrowChar( m_currentRow + 1, event );
+            break;
+        //Add the process for tree expanding/collapsing
+        case WXK_LEFT:
+         OnCollapsing(m_currentRow);
+         break;
+     case WXK_RIGHT:
+         OnExpanding( m_currentRow);
+         break;
+        case WXK_END:
+            if (!IsEmpty())
+                OnArrowChar( GetRowCount() - 1, event );
+            break;
+
+        case WXK_HOME:
+            if (!IsEmpty())
+                OnArrowChar( 0, event );
+            break;
+
+        case WXK_PAGEUP:
+            {
+                int steps = pageSize - 1;
+                int index = m_currentRow - steps;
+                if (index < 0)
+                    index = 0;
+
+                OnArrowChar( index, event );
+            }
+            break;
+
+        case WXK_PAGEDOWN:
+            {
+                int steps = pageSize - 1;
+                unsigned int index = m_currentRow + steps;
+                unsigned int count = GetRowCount();
+                if ( index >= count )
+                    index = count - 1;
+
+                OnArrowChar( index, event );
+            }
+            break;
+
+        default:
+            event.Skip();
+    }
+}
+
+void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
+{
+    if (event.GetEventType() == wxEVT_MOUSEWHEEL)
+    {
+        // let the base handle mouse wheel events.
+        event.Skip();
+        return;
+    }
+
+    int x = event.GetX();
+    int y = event.GetY();
+    m_owner->CalcUnscrolledPosition( x, y, &x, &y );
+    wxDataViewColumn *col = NULL;
+
+    int xpos = 0;
+    unsigned int cols = GetOwner()->GetColumnCount();
+    unsigned int i;
+    for (i = 0; i < cols; i++)
+    {
+        wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
+        if (c->IsHidden())
+            continue;      // skip it!
+
+        if (x < xpos + c->GetWidth())
+        {
+            col = c;
+            break;
+        }
+        xpos += c->GetWidth();
+    }
+    if (!col)
+        return;
+
+    wxDataViewRenderer *cell = col->GetRenderer();
+    unsigned int current = GetLineAt( y );
+    if ((current >= GetRowCount()) || (x > GetEndOfLastCol()))
+    {
+        // Unselect all if below the last row ?
+        return;
+    }
+
+    //Test whether the mouse is hovered on the tree item button
+    bool hover = false;
+    if ((!IsVirtualList()) && (GetOwner()->GetExpanderColumn() == col))
+    {
+        wxDataViewTreeNode * node = GetTreeNodeByRow(current);
+        if( node!=NULL && node->HasChildren() )
+        {
+            int indent = node->GetIndentLevel();
+            indent = GetOwner()->GetIndent()*indent;
+            wxRect rect( xpos + indent + EXPANDER_MARGIN,
+                         GetLineStart( current ) + EXPANDER_MARGIN + (GetLineHeight(current)/2) - (m_lineHeight/2) - EXPANDER_OFFSET,
+                         m_lineHeight-2*EXPANDER_MARGIN,
+                         m_lineHeight-2*EXPANDER_MARGIN + EXPANDER_OFFSET);
+            if( rect.Contains( x, y) )
+            {
+                //So the mouse is over the expander
+                hover = true;
+                if (m_underMouse && m_underMouse != node)
+                {
+                    //wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
+                    RefreshRow(GetRowByItem(m_underMouse->GetItem()));
+                }
+                if (m_underMouse != node)
+                {
+                    //wxLogMessage("Do the row: %d", current);
+                    RefreshRow(current);
+                }
+                m_underMouse = node;
+            }
+        }
+        if (node!=NULL && !node->HasChildren())
+            delete node;
+    }
+    if (!hover)
+    {
+        if (m_underMouse != NULL)
+        {
+            //wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
+            RefreshRow(GetRowByItem(m_underMouse->GetItem()));
+            m_underMouse = NULL;
+        }
+    }
+
+    wxDataViewModel *model = GetOwner()->GetModel();
+
+    if (event.Dragging())
+    {
+        if (m_dragCount == 0)
+        {
+            // we have to report the raw, physical coords as we want to be
+            // able to call HitTest(event.m_pointDrag) from the user code to
+            // get the item being dragged
+            m_dragStart = event.GetPosition();
+        }
+
+        m_dragCount++;
+
+        if (m_dragCount != 3)
+            return;
+
+        if (event.LeftIsDown())
+        {
+            // Notify cell about drag
+        }
+        return;
+    }
+    else
+    {
+        m_dragCount = 0;
+    }
+
+    bool forceClick = false;
+
+    if (event.ButtonDClick())
+    {
+        m_renameTimer->Stop();
+        m_lastOnSame = false;
+    }
+
+    wxDataViewItem item = GetItemByRow(current);
+    bool ignore_other_columns =
+        ((GetOwner()->GetExpanderColumn() != col) &&
+         (model->IsContainer(item)) &&
+         (!model->HasContainerColumns(item)));
+
+    if (event.LeftDClick())
+    {
+        if ( current == m_lineLastClicked )
+        {
+            if ((!ignore_other_columns) && (cell->GetMode() == wxDATAVIEW_CELL_ACTIVATABLE))
+            {
+                wxVariant value;
+                model->GetValue( value, item, col->GetModelColumn() );
+                cell->SetValue( value );
+                wxRect cell_rect( xpos, GetLineStart( current ),
+                                  col->GetWidth(), GetLineHeight( current ) );
+                cell->Activate( cell_rect, model, item, col->GetModelColumn() );
+
+            }
+            else
+            {
+                wxWindow *parent = GetParent();
+                wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
+                le.SetItem( item );
+                le.SetEventObject(parent);
+                le.SetModel(GetOwner()->GetModel());
+
+                parent->GetEventHandler()->ProcessEvent(le);
+            }
+            return;
+        }
+        else
+        {
+            // The first click was on another item, so don't interpret this as
+            // a double click, but as a simple click instead
+            forceClick = true;
+        }
+    }
+
+    if (event.LeftUp())
+    {
+        if (m_lineSelectSingleOnUp != (unsigned int)-1)
+        {
+            // select single line
+            SelectAllRows( false );
+            SelectRow( m_lineSelectSingleOnUp, true );
+            SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
+        }
+
+        //Process the event of user clicking the expander
+        bool expander = false;
+        if ((!IsVirtualList()) && (GetOwner()->GetExpanderColumn() == col))
+        {
+            wxDataViewTreeNode * node = GetTreeNodeByRow(current);
+            if( node!=NULL && node->HasChildren() )
+            {
+                int indent = node->GetIndentLevel();
+                indent = GetOwner()->GetIndent()*indent;
+                wxRect rect( xpos + indent + EXPANDER_MARGIN,
+                         GetLineStart( current ) + EXPANDER_MARGIN + (GetLineHeight(current)/2) - (m_lineHeight/2) - EXPANDER_OFFSET,
+                         m_lineHeight-2*EXPANDER_MARGIN,
+                         m_lineHeight-2*EXPANDER_MARGIN + EXPANDER_OFFSET);
+
+                if( rect.Contains( x, y) )
+                {
+                    expander = true;
+                    if( node->IsOpen() )
+                        OnCollapsing(current);
+                    else
+                        OnExpanding( current );
+                }
+            }
+            if (node && !node->HasChildren())
+               delete node;
+        }
+        //If the user click the expander, we do not do editing even if the column with expander are editable
+        if (m_lastOnSame && !expander && !ignore_other_columns)
+        {
+            if ((col == m_currentCol) && (current == m_currentRow) &&
+                (cell->GetMode() & wxDATAVIEW_CELL_EDITABLE) )
+            {
+                m_renameTimer->Start( 100, true );
+            }
+        }
+
+        m_lastOnSame = false;
+        m_lineSelectSingleOnUp = (unsigned int)-1;
+    }
+    else
+    {
+        // This is necessary, because after a DnD operation in
+        // from and to ourself, the up event is swallowed by the
+        // DnD code. So on next non-up event (which means here and
+        // now) m_lineSelectSingleOnUp should be reset.
+        m_lineSelectSingleOnUp = (unsigned int)-1;
+    }
+
+    if (event.RightDown())
+    {
+        m_lineBeforeLastClicked = m_lineLastClicked;
+        m_lineLastClicked = current;
+
+        // If the item is already selected, do not update the selection.
+        // Multi-selections should not be cleared if a selected item is clicked.
+        if (!IsRowSelected(current))
+        {
+            SelectAllRows(false);
+            ChangeCurrentRow(current);
+            SelectRow(m_currentRow,true);
+            SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
+        }
+
+        wxVariant value;
+        model->GetValue( value, item, col->GetModelColumn() );
+        wxWindow *parent = GetParent();
+        wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, parent->GetId());
+        le.SetItem( item );
+        le.SetEventObject(parent);
+        le.SetModel(GetOwner()->GetModel());
+        le.SetValue(value);
+        parent->GetEventHandler()->ProcessEvent(le);
+    }
+    else if (event.MiddleDown())
+    {
+    }
+    if (event.LeftDown() || forceClick)
+    {
+        SetFocus();
+
+        m_lineBeforeLastClicked = m_lineLastClicked;
+        m_lineLastClicked = current;
+
+        unsigned int oldCurrentRow = m_currentRow;
+        bool oldWasSelected = IsRowSelected(m_currentRow);
+
+        bool cmdModifierDown = event.CmdDown();
+        if ( IsSingleSel() || !(cmdModifierDown || event.ShiftDown()) )
+        {
+            if ( IsSingleSel() || !IsRowSelected(current) )
+            {
+                SelectAllRows( false );
+                ChangeCurrentRow(current);
+                SelectRow(m_currentRow,true);
+                SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
+            }
+            else // multi sel & current is highlighted & no mod keys
+            {
+                m_lineSelectSingleOnUp = current;
+                ChangeCurrentRow(current); // change focus
+            }
+        }
+        else // multi sel & either ctrl or shift is down
+        {
+            if (cmdModifierDown)
+            {
+                ChangeCurrentRow(current);
+                ReverseRowSelection(m_currentRow);
+                SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
+            }
+            else if (event.ShiftDown())
+            {
+                ChangeCurrentRow(current);
+
+                unsigned int lineFrom = oldCurrentRow,
+                       lineTo = current;
+
+                if ( lineTo < lineFrom )
+                {
+                    lineTo = lineFrom;
+                    lineFrom = m_currentRow;
+                }
+
+                SelectRows(lineFrom, lineTo, true);
+                SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
+            }
+            else // !ctrl, !shift
+            {
+                // test in the enclosing if should make it impossible
+                wxFAIL_MSG( _T("how did we get here?") );
+            }
+        }
+
+        if (m_currentRow != oldCurrentRow)
+            RefreshRow( oldCurrentRow );
+
+        wxDataViewColumn *oldCurrentCol = m_currentCol;
+
+        // Update selection here...
+        m_currentCol = col;
+
+        m_lastOnSame = !forceClick && ((col == oldCurrentCol) &&
+                        (current == oldCurrentRow)) && oldWasSelected;
+
+        // Call LeftClick after everything else as under GTK+
+        if (cell->GetMode() & wxDATAVIEW_CELL_ACTIVATABLE)
+        {
+            // notify cell about right click
+            wxVariant value;
+            model->GetValue( value, item, col->GetModelColumn() );
+            cell->SetValue( value );
+            wxRect cell_rect( xpos, GetLineStart( current ),
+                          col->GetWidth(), GetLineHeight( current ) );
+            /* ignore ret */ cell->LeftClick( event.GetPosition(), cell_rect, model, item, col->GetModelColumn());
+        }
+    }
+}
+
+void wxDataViewMainWindow::OnSetFocus( wxFocusEvent &event )
+{
+    m_hasFocus = true;
+
+    if (HasCurrentRow())
+        Refresh();
+
+    event.Skip();
+}
+
+void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
+{
+    m_hasFocus = false;
+
+    if (HasCurrentRow())
+        Refresh();
+
+    event.Skip();
+}
+
+wxDataViewItem wxDataViewMainWindow::GetSelection() const
+{
+    if( m_selection.GetCount() != 1 )
+        return wxDataViewItem();
+
+    return GetItemByRow( m_selection.Item(0));
+}
+
+//-----------------------------------------------------------------------------
+// wxDataViewCtrl
+//-----------------------------------------------------------------------------
+WX_DEFINE_LIST(wxDataViewColumnList)
+
+IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
+
+BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
+    EVT_SIZE(wxDataViewCtrl::OnSize)
+END_EVENT_TABLE()
+
+wxDataViewCtrl::~wxDataViewCtrl()
+{
+    if (m_notifier)
+        GetModel()->RemoveNotifier( m_notifier );
+
+    m_cols.Clear();
+}
+
+void wxDataViewCtrl::Init()
+{
+    m_cols.DeleteContents(true);
+    m_notifier = NULL;
+
+    // No sorting column at start
+    m_sortingColumnIdx = wxNOT_FOUND;
+
+    m_headerArea = NULL;
+}
+
+bool wxDataViewCtrl::Create(wxWindow *parent, wxWindowID id,
+           const wxPoint& pos, const wxSize& size,
+           long style, const wxValidator& validator )
+{
+    if ( (style & wxBORDER_MASK) == 0)
+        style |= wxBORDER_SUNKEN;
+
+    Init();
+
+    if (!wxControl::Create( parent, id, pos, size,
+                            style | wxScrolledWindowStyle, validator))
+        return false;
+
+    SetInitialSize(size);
+
+#ifdef __WXMAC__
+    MacSetClipChildren( true );
+#endif
+
+    m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
+
+    if (HasFlag(wxDV_NO_HEADER))
+        m_headerArea = NULL;
+    else
+        m_headerArea = new wxDataViewHeaderWindow(this);
+
+    SetTargetWindow( m_clientArea );
+
+    wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
+    if (m_headerArea)
+        sizer->Add( m_headerArea, 0, wxGROW );
+    sizer->Add( m_clientArea, 1, wxGROW );
+    SetSizer( sizer );
+
+    return true;
+}
+
+#ifdef __WXMSW__
+WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
+                                       WXWPARAM wParam,
+                                       WXLPARAM lParam)
+{
+    WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
+
+#ifndef __WXWINCE__
+    // we need to process arrows ourselves for scrolling
+    if ( nMsg == WM_GETDLGCODE )
+    {
+        rc |= DLGC_WANTARROWS;
+    }
+#endif
+
+    return rc;
+}
+#endif
+
+wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
+{
+    wxSize newsize = size;
+    if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
+       newsize.y -= m_headerArea->GetSize().y;
+
+    return newsize;
+}
+
+void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
+{
+    // We need to override OnSize so that our scrolled
+    // window a) does call Layout() to use sizers for
+    // positioning the controls but b) does not query
+    // the sizer for their size and use that for setting
+    // the scrollable area as set that ourselves by
+    // calling SetScrollbar() further down.
+
+    Layout();
+
+    AdjustScrollbars();
+}
+
+void wxDataViewCtrl::SetFocus()
+{
+    if (m_clientArea)
+        m_clientArea->SetFocus();
+}
+
+bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
+{
+    if (!wxDataViewCtrlBase::AssociateModel( model ))
+        return false;
+
+    m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );
+
+    model->AddNotifier( m_notifier );
+
+    m_clientArea->DestroyTree();
+
+    m_clientArea->BuildTree(model);
+
+    m_clientArea->UpdateDisplay();
+
     return true;
 }
 
-bool wxDataViewDateCell::Render( wxRect cell, wxDC *dc, int state )
+bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
 {
-    dc->SetFont( GetOwner()->GetOwner()->GetFont() );
-    wxString tmp = m_date.FormatDate();
-    dc->DrawText( tmp, cell.x, cell.y );
+    if (!wxDataViewCtrlBase::AppendColumn(col))
+        return false;
 
+    m_cols.Append( col );
+    OnColumnsCountChanged();
     return true;
 }
 
-wxSize wxDataViewDateCell::GetSize()
+bool wxDataViewCtrl::PrependColumn( wxDataViewColumn *col )
 {
-    wxDataViewCtrl* view = GetOwner()->GetOwner();
-    wxString tmp = m_date.FormatDate();
-    wxCoord x,y,d;
-    view->GetTextExtent( tmp, &x, &y, &d );
-    return wxSize(x,y+d);
+    if (!wxDataViewCtrlBase::PrependColumn(col))
+        return false;
+
+    m_cols.Insert( col );
+    OnColumnsCountChanged();
+    return true;
 }
 
-bool wxDataViewDateCell::Activate( wxRect cell, wxDataViewListModel *model, size_t col, size_t row )
+bool wxDataViewCtrl::InsertColumn( unsigned int pos, wxDataViewColumn *col )
 {
-    wxVariant variant;
-    model->GetValue( variant, col, row );
-    wxDateTime value = variant.GetDateTime();
-
-    wxDataViewDateCellPopupTransient *popup = new wxDataViewDateCellPopupTransient( 
-        GetOwner()->GetOwner()->GetParent(), &value, model, col, row );
-    wxPoint pos = wxGetMousePosition();
-    popup->Move( pos );
-    popup->Layout();
-    popup->Popup( popup->m_cal );
+    if (!wxDataViewCtrlBase::InsertColumn(pos,col))
+        return false;
 
+    m_cols.Insert( pos, col );
+    OnColumnsCountChanged();
     return true;
 }
 
-// --------------------------------------------------------- 
-// wxDataViewColumn
-// --------------------------------------------------------- 
+void wxDataViewCtrl::OnColumnChange(unsigned int idx)
+{
+    if ( m_headerArea )
+        m_headerArea->UpdateColumn(idx);
 
-IMPLEMENT_ABSTRACT_CLASS(wxDataViewColumn, wxDataViewColumnBase)
+    m_clientArea->UpdateDisplay();
+}
 
-wxDataViewColumn::wxDataViewColumn( const wxString &title, wxDataViewCell *cell, 
-    size_t model_column, int flags ) :
-    wxDataViewColumnBase( title, cell, model_column, flags )
+void wxDataViewCtrl::OnColumnsCountChanged()
 {
-    m_width = 80;
+    if (m_headerArea)
+        m_headerArea->SetColumnCount(GetColumnCount());
+
+    m_clientArea->UpdateDisplay();
 }
 
-wxDataViewColumn::~wxDataViewColumn()
+void wxDataViewCtrl::DoSetExpanderColumn()
 {
+    m_clientArea->UpdateDisplay();
 }
 
-void wxDataViewColumn::SetTitle( const wxString &title )
+void wxDataViewCtrl::DoSetIndent()
 {
-    wxDataViewColumnBase::SetTitle( title );
-    
+    m_clientArea->UpdateDisplay();
 }
 
-//-----------------------------------------------------------------------------
-// wxDataViewHeaderWindow
-//-----------------------------------------------------------------------------
-
-class wxDataViewHeaderWindow: public wxWindow
+unsigned int wxDataViewCtrl::GetColumnCount() const
 {
-public:
-    wxDataViewHeaderWindow( wxDataViewCtrl *parent,
-                            wxWindowID id,
-                            const wxPoint &pos = wxDefaultPosition,
-                            const wxSize &size = wxDefaultSize,
-                            const wxString &name = wxT("wxdataviewctrlheaderwindow") );
-    ~wxDataViewHeaderWindow();
-
-    void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
-    wxDataViewCtrl *GetOwner() { return m_owner; }
+    return m_cols.GetCount();
+}
 
-    void OnPaint( wxPaintEvent &event );
-    void OnMouse( wxMouseEvent &event );
-    void OnSetFocus( wxFocusEvent &event );
-    
-private:
-    wxDataViewCtrl      *m_owner;
-    wxCursor            *m_resizeCursor;
-    
-private:
-    DECLARE_DYNAMIC_CLASS(wxDataViewHeaderWindow)
-    DECLARE_EVENT_TABLE()
-};
+wxDataViewColumn* wxDataViewCtrl::GetColumn( unsigned int idx ) const
+{
+    return m_cols[idx];
+}
 
-IMPLEMENT_ABSTRACT_CLASS(wxDataViewHeaderWindow, wxWindow)
+wxDataViewColumn *wxDataViewCtrl::GetColumnAt(unsigned int pos) const
+{
+    // columns can't be reordered if there is no header window which allows
+    // to do this
+    const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]
+                                      : pos;
 
-BEGIN_EVENT_TABLE(wxDataViewHeaderWindow,wxWindow)
-    EVT_PAINT         (wxDataViewHeaderWindow::OnPaint)
-    EVT_MOUSE_EVENTS  (wxDataViewHeaderWindow::OnMouse)
-    EVT_SET_FOCUS     (wxDataViewHeaderWindow::OnSetFocus)
-END_EVENT_TABLE()
+    return GetColumn(idx);
+}
 
-wxDataViewHeaderWindow::wxDataViewHeaderWindow( wxDataViewCtrl *parent, wxWindowID id,
-     const wxPoint &pos, const wxSize &size, const wxString &name ) :
-    wxWindow( parent, id, pos, size, 0, name )
+int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
 {
-    SetOwner( parent );
+    const unsigned count = m_cols.size();
+    for ( unsigned n = 0; n < count; n++ )
+    {
+        if ( m_cols[n] == column )
+            return n;
+    }
 
-    m_resizeCursor = new wxCursor( wxCURSOR_SIZEWE );
-    
-    wxVisualAttributes attr = wxPanel::GetClassDefaultAttributes();
-    SetOwnForegroundColour( attr.colFg );
-    SetOwnBackgroundColour( attr.colBg );
-    if (!m_hasFont)
-        SetOwnFont( attr.font );
+    return wxNOT_FOUND;
 }
 
-wxDataViewHeaderWindow::~wxDataViewHeaderWindow()
+void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
+                                 unsigned int WXUNUSED(new_pos))
 {
-    delete m_resizeCursor;
+    // do _not_ reorder m_cols elements here, they should always be in the
+    // order in which columns were added, we only display the columns in
+    // different order
+    m_clientArea->UpdateDisplay();
 }
 
-void wxDataViewHeaderWindow::OnPaint( wxPaintEvent &event )
+bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
 {
-    int w, h;
-    GetClientSize( &w, &h );
-
-    wxPaintDC dc( this );
-    
-    int xpix;
-    m_owner->GetScrollPixelsPerUnit( &xpix, NULL );
+    wxDataViewColumnList::compatibility_iterator ret = m_cols.Find( column );
+    if (!ret)
+        return false;
 
-    int x;
-    m_owner->GetViewStart( &x, NULL );
+    m_cols.Erase(ret);
+    OnColumnsCountChanged();
 
-    // account for the horz scrollbar offset
-    dc.SetDeviceOrigin( -x * xpix, 0 );
-    
-    dc.SetFont( GetFont() );
-    
-    size_t cols = GetOwner()->GetNumberOfColumns();
-    size_t i;
-    int xpos = 0;
-    for (i = 0; i < cols; i++)
-    {
-        wxDataViewColumn *col = GetOwner()->GetColumn( i );
-        int width = col->GetWidth();
-        
-        // the width of the rect to draw: make it smaller to fit entirely
-        // inside the column rect
-#ifdef __WXMAC__
-        int cw = width;
-        int ch = h;
-#else
-        int cw = width - 2;
-        int ch = h - 2;
-#endif
+    return true;
+}
 
-        wxRendererNative::Get().DrawHeaderButton
-                                (
-                                    this,
-                                    dc,
-                                    wxRect(xpos, 0, cw, ch),
-                                    m_parent->IsEnabled() ? 0
-                                                          : (int)wxCONTROL_DISABLED
-                                );
+bool wxDataViewCtrl::ClearColumns()
+{
+    m_cols.Clear();
+    OnColumnsCountChanged();
+    return true;
+}
 
-        dc.DrawText( col->GetTitle(), xpos+3, 3 );   
-                                
-        xpos += width;
+int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
+{
+    int ret = 0,
+        dummy = 0;
+    unsigned int len = GetColumnCount();
+    for ( unsigned int i = 0; i < len; i++ )
+    {
+        wxDataViewColumn * col = GetColumnAt(i);
+        if (col->IsHidden())
+            continue;
+        ret += col->GetWidth();
+        if (column==col)
+        {
+            CalcScrolledPosition( ret, dummy, &ret, &dummy );
+            break;
+        }
     }
+    return ret;
 }
 
-void wxDataViewHeaderWindow::OnMouse( wxMouseEvent &event )
+wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
 {
+    return m_sortingColumnIdx == wxNOT_FOUND ? NULL
+                                             : GetColumn(m_sortingColumnIdx);
 }
 
-void wxDataViewHeaderWindow::OnSetFocus( wxFocusEvent &event )
+//Selection code with wxDataViewItem as parameters
+wxDataViewItem wxDataViewCtrl::GetSelection() const
 {
-    event.Skip();
+    return m_clientArea->GetSelection();
 }
 
-//-----------------------------------------------------------------------------
-// wxDataViewMainWindow
-//-----------------------------------------------------------------------------
+int wxDataViewCtrl::GetSelections( wxDataViewItemArray & sel ) const
+{
+    sel.Empty();
+    wxDataViewSelection selection = m_clientArea->GetSelections();
+    int len = selection.GetCount();
+    for( int i = 0; i < len; i ++)
+    {
+        unsigned int row = selection[i];
+        sel.Add( m_clientArea->GetItemByRow( row ) );
+    }
+    return len;
+}
 
-class wxDataViewMainWindow: public wxWindow
+void wxDataViewCtrl::SetSelections( const wxDataViewItemArray & sel )
 {
-public:
-    wxDataViewMainWindow( wxDataViewCtrl *parent,
-                            wxWindowID id,
-                            const wxPoint &pos = wxDefaultPosition,
-                            const wxSize &size = wxDefaultSize,
-                            const wxString &name = wxT("wxdataviewctrlmainwindow") );
-    ~wxDataViewMainWindow();
+    wxDataViewSelection selection(wxDataViewSelectionCmp);
 
-    void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
-    wxDataViewCtrl *GetOwner() { return m_owner; }
+    wxDataViewItem last_parent;
 
-    void OnPaint( wxPaintEvent &event );
-    void OnMouse( wxMouseEvent &event );
-    void OnSetFocus( wxFocusEvent &event );
-    
-    void UpdateDisplay();
-    void RecalculateDisplay();
-    void OnInternalIdle();
-    
-    void ScrollWindow( int dx, int dy, const wxRect *rect );
-private:
-    wxDataViewCtrl      *m_owner;
-    int                  m_lineHeight;
-    bool                 m_dirty;
+    int len = sel.GetCount();
+    for( int i = 0; i < len; i ++ )
+    {
+        wxDataViewItem item = sel[i];
+        wxDataViewItem parent = GetModel()->GetParent( item );
+        if (parent)
+        {
+            if (parent != last_parent)
+                ExpandAncestors(item);
+        }
+        
+        last_parent = parent;
+        int row = m_clientArea->GetRowByItem( item );
+        if( row >= 0 )
+            selection.Add( static_cast<unsigned int>(row) );
+    }
     
-private:
-    DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
-    DECLARE_EVENT_TABLE()
-};
-
-IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
-
-BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)
-    EVT_PAINT         (wxDataViewMainWindow::OnPaint)
-    EVT_MOUSE_EVENTS  (wxDataViewMainWindow::OnMouse)
-    EVT_SET_FOCUS     (wxDataViewMainWindow::OnSetFocus)
-END_EVENT_TABLE()
+    m_clientArea->SetSelections( selection );
+}
 
-wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID id,
-    const wxPoint &pos, const wxSize &size, const wxString &name ) :
-    wxWindow( parent, id, pos, size, 0, name )
+void wxDataViewCtrl::Select( const wxDataViewItem & item )
 {
-    SetOwner( parent );
+    ExpandAncestors( item );
     
-    // We need to calculate this smartly..
-    m_lineHeight = 20;
-    
-    UpdateDisplay();
+    int row = m_clientArea->GetRowByItem( item );
+    if( row >= 0 )
+    {
+        //Unselect all rows before select another in the single select mode
+        if (m_clientArea->IsSingleSel())
+            m_clientArea->SelectAllRows(false);
+        m_clientArea->SelectRow(row, true);
+    }
 }
 
-wxDataViewMainWindow::~wxDataViewMainWindow()
+void wxDataViewCtrl::Unselect( const wxDataViewItem & item )
 {
+    int row = m_clientArea->GetRowByItem( item );
+    if( row >= 0 )
+        m_clientArea->SelectRow(row, false);
 }
 
-void wxDataViewMainWindow::UpdateDisplay()
+bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
 {
-    m_dirty = true;
+    int row = m_clientArea->GetRowByItem( item );
+    if( row >= 0 )
+    {
+        return m_clientArea->IsRowSelected(row);
+    }
+    return false;
 }
 
-void wxDataViewMainWindow::OnInternalIdle()
+//Selection code with row number as parameter
+int wxDataViewCtrl::GetSelections( wxArrayInt & sel ) const
 {
-    wxWindow::OnInternalIdle();
-    
-    if (m_dirty)
+    sel.Empty();
+    wxDataViewSelection selection = m_clientArea->GetSelections();
+    int len = selection.GetCount();
+    for( int i = 0; i < len; i ++)
     {
-        RecalculateDisplay();
-        m_dirty = false;
+        unsigned int row = selection[i];
+        sel.Add( row );
     }
+    return len;
 }
 
-void wxDataViewMainWindow::RecalculateDisplay()
+void wxDataViewCtrl::SetSelections( const wxArrayInt & sel )
 {
-    wxDataViewListModel *model = GetOwner()->GetModel();
-    if (!model)
+    wxDataViewSelection selection(wxDataViewSelectionCmp);
+    int len = sel.GetCount();
+    for( int i = 0; i < len; i ++ )
     {
-        Refresh();
-        return;
+        int row = sel[i];
+        if( row >= 0 )
+            selection.Add( static_cast<unsigned int>(row) );
     }
-    
-    int width = 0;
-    size_t cols = GetOwner()->GetNumberOfColumns();
-    size_t i;
-    for (i = 0; i < cols; i++)
+    m_clientArea->SetSelections( selection );
+}
+
+void wxDataViewCtrl::Select( int row )
+{
+    if( row >= 0 )
     {
-        wxDataViewColumn *col = GetOwner()->GetColumn( i );
-        width += col->GetWidth();
+        if (m_clientArea->IsSingleSel())
+            m_clientArea->SelectAllRows(false);
+        m_clientArea->SelectRow( row, true );
     }
-    
-    int height = model->GetNumberOfRows() * m_lineHeight;
-
-    SetVirtualSize( width, height );
-    GetOwner()->SetScrollRate( 10, m_lineHeight );
-    
-    Refresh();
 }
 
-void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
+void wxDataViewCtrl::Unselect( int row )
 {
-    wxWindow::ScrollWindow( dx, dy, rect );
-    GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
+    if( row >= 0 )
+        m_clientArea->SelectRow(row, false);
 }
 
-void wxDataViewMainWindow::OnPaint( wxPaintEvent &event )
+bool wxDataViewCtrl::IsSelected( int row ) const
 {
-    wxPaintDC dc( this );
-
-    GetOwner()->PrepareDC( dc );
-
-    dc.SetFont( GetFont() );
-    
-    dc.DrawText( wxT("main window"), 5, 5 );
+    if( row >= 0 )
+        return m_clientArea->IsRowSelected(row);
+    return false;
 }
 
-void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
+void wxDataViewCtrl::SelectRange( int from, int to )
 {
-    event.Skip();
+    wxArrayInt sel;
+    for( int i = from; i < to; i ++ )
+        sel.Add( i );
+    m_clientArea->Select(sel);
 }
 
-void wxDataViewMainWindow::OnSetFocus( wxFocusEvent &event )
+void wxDataViewCtrl::UnselectRange( int from, int to )
 {
-    event.Skip();
+    wxDataViewSelection sel = m_clientArea->GetSelections();
+    for( int i = from; i < to; i ++ )
+        if( sel.Index( i ) != wxNOT_FOUND )
+            sel.Remove( i );
+    m_clientArea->SetSelections(sel);
 }
 
-//-----------------------------------------------------------------------------
-// wxDataViewCtrl
-//-----------------------------------------------------------------------------
-
-IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
-
-BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
-    EVT_SIZE(wxDataViewCtrl::OnSize)
-END_EVENT_TABLE()
-
-wxDataViewCtrl::~wxDataViewCtrl()
+void wxDataViewCtrl::SelectAll()
 {
-    if (m_notifier)
-        GetModel()->RemoveNotifier( m_notifier );
+    m_clientArea->SelectAllRows(true);
 }
 
-void wxDataViewCtrl::Init()
+void wxDataViewCtrl::UnselectAll()
 {
-    m_notifier = NULL;
+    m_clientArea->SelectAllRows(false);
 }
 
-bool wxDataViewCtrl::Create(wxWindow *parent, wxWindowID id,
-           const wxPoint& pos, const wxSize& size, 
-           long style, const wxValidator& validator )
+void wxDataViewCtrl::EnsureVisible( int row, int column )
 {
-    if (!wxControl::Create( parent, id, pos, size, style | wxScrolledWindowStyle|wxSUNKEN_BORDER, validator))
-        return false;
-
-    Init();
-    
-#ifdef __WXMAC__
-    MacSetClipChildren( true ) ;
-#endif
-
-    m_clientArea = new wxDataViewMainWindow( this, -1 );
-    m_headerArea = new wxDataViewHeaderWindow( this, -1, wxDefaultPosition, wxSize(-1,25) );
-    
-    SetTargetWindow( m_clientArea );
-    
-    wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
-    sizer->Add( m_headerArea, 0, wxGROW );
-    sizer->Add( m_clientArea, 1, wxGROW );
-    SetSizer( sizer );
-
-    return true;
+    if( row < 0 )
+        row = 0;
+    if( row > (int) m_clientArea->GetRowCount() )
+        row = m_clientArea->GetRowCount();
+
+    int first = m_clientArea->GetFirstVisibleRow();
+    int last = m_clientArea->GetLastVisibleRow();
+    if( row < first )
+        m_clientArea->ScrollTo( row, column );
+    else if( row > last )
+        m_clientArea->ScrollTo( row - last + first, column );
+    else
+        m_clientArea->ScrollTo( first, column );
 }
 
-#ifdef __WXMSW__
-WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
-                                       WXWPARAM wParam,
-                                       WXLPARAM lParam)
+void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataViewColumn * column )
 {
-    WXLRESULT rc = wxPanel::MSWWindowProc(nMsg, wParam, lParam);
+    ExpandAncestors( item );
+  
+    m_clientArea->RecalculateDisplay();
 
-#ifndef __WXWINCE__
-    // we need to process arrows ourselves for scrolling
-    if ( nMsg == WM_GETDLGCODE )
+    int row = m_clientArea->GetRowByItem(item);
+    if( row >= 0 )
     {
-        rc |= DLGC_WANTARROWS;
+        if( column == NULL )
+            EnsureVisible(row, -1);
+        else
+            EnsureVisible( row, GetColumnIndex(column) );
     }
-#endif
 
-    return rc;
 }
-#endif
 
-void wxDataViewCtrl::OnSize( wxSizeEvent &event )
+void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column ) const
 {
-    // We need to override OnSize so that our scrolled
-    // window a) does call Layout() to use sizers for
-    // positioning the controls but b) does not query
-    // the sizer for their size and use that for setting
-    // the scrollable area as set that ourselves by
-    // calling SetScrollbar() further down.
-
-    Layout();
+    m_clientArea->HitTest(point, item, column);
+}
 
-    AdjustScrollbars();
+wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column ) const
+{
+    return m_clientArea->GetItemRect(item, column);
 }
 
-bool wxDataViewCtrl::AssociateModel( wxDataViewListModel *model )
+wxDataViewItem wxDataViewCtrl::GetItemByRow( unsigned int row ) const
 {
-    if (!wxDataViewCtrlBase::AssociateModel( model ))
-        return false;
+    return m_clientArea->GetItemByRow( row );
+}
 
-    m_notifier = new wxGenericDataViewListModelNotifier( model );
+int wxDataViewCtrl::GetRowByItem( const wxDataViewItem & item ) const
+{
+    return m_clientArea->GetRowByItem( item );
+}
 
-    model->AddNotifier( m_notifier );    
+void wxDataViewCtrl::Expand( const wxDataViewItem & item )
+{
+    int row = m_clientArea->GetRowByItem( item );
+    if (row != -1)
+        m_clientArea->Expand(row);
+}
 
-    m_clientArea->UpdateDisplay();
-    
-    return true;
+void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
+{
+    int row = m_clientArea->GetRowByItem( item );
+    if (row != -1)
+        m_clientArea->Collapse(row);
 }
 
-bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
+bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
 {
-    if (!wxDataViewCtrlBase::AppendColumn(col))
-        return false;
-    
-    m_clientArea->UpdateDisplay();
-    
-    return true;
+    int row = m_clientArea->GetRowByItem( item );
+    if (row != -1)
+        return m_clientArea->IsExpanded(row);
+    return false;
 }
 
-#endif 
+
+ #endif
     // !wxUSE_GENERICDATAVIEWCTRL
 
-#endif 
+#endif
     // wxUSE_DATAVIEWCTRL
-