Implement simple drag

[wxWidgets.git] / src / generic / datavgen.cpp

diff --git a/src/generic/datavgen.cpp b/src/generic/datavgen.cpp
index c9a8a6d3d23b2e8c8c9d8bb59329a3d54e58d5c1..2f39cbcab82a87d4d6a261bb41ceb753df63dd09 100644 (file)
--- a/src/generic/datavgen.cpp
+++ b/src/generic/datavgen.cpp
@@ -2,7 +2,7 @@
 // Name:        src/generic/datavgen.cpp
 // Purpose:     wxDataViewCtrl generic implementation
 // Author:      Robert Roebling
 // Name:        src/generic/datavgen.cpp
 // Purpose:     wxDataViewCtrl generic implementation
 // Author:      Robert Roebling

-// Modified by: Francesco Montorsi, Guru Kathiresan, Otto Wyss
+// Modified by: Francesco Montorsi, Guru Kathiresan, Bo Yang

 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling
 // Licence:     wxWindows licence
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling
 // Licence:     wxWindows licence


@@ -33,6 +33,7 @@
     #include "wx/timer.h"
     #include "wx/settings.h"
     #include "wx/msgdlg.h"
     #include "wx/timer.h"
     #include "wx/settings.h"
     #include "wx/msgdlg.h"

+    #include "wx/dcscreen.h"

 #endif
 
 #include "wx/stockitem.h"
 #endif
 
 #include "wx/stockitem.h"


@@ -41,6 +42,11 @@
 #include "wx/renderer.h"
 #include "wx/dcbuffer.h"
 #include "wx/icon.h"
 #include "wx/renderer.h"
 #include "wx/dcbuffer.h"
 #include "wx/icon.h"

+#include "wx/list.h"
+#include "wx/listimpl.cpp"
+#include "wx/imaglist.h"
+#include "wx/headerctrl.h"
+#include "wx/dnd.h"

 
 //-----------------------------------------------------------------------------
 // classes
 
 //-----------------------------------------------------------------------------
 // classes


@@ -53,179 +59,150 @@ static const int SCROLL_UNIT_X = 15;
 // the cell padding on the left/right
 static const int PADDING_RIGHTLEFT = 3;
 
 // the cell padding on the left/right
 static const int PADDING_RIGHTLEFT = 3;
 

-// the cell padding on the top/bottom
-static const int PADDING_TOPBOTTOM = 1;
+// 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
 //-----------------------------------------------------------------------------
 
 
 //-----------------------------------------------------------------------------
 // wxDataViewHeaderWindow
 //-----------------------------------------------------------------------------
 

-#define USE_NATIVE_HEADER_WINDOW    1
-
-class wxDataViewHeaderWindowBase : public wxControl
+class wxDataViewHeaderWindow : public wxHeaderCtrl

 {
 public:
 {
 public:

-    wxDataViewHeaderWindowBase()
-        { m_owner = NULL; }
-
-    bool Create(wxDataViewCtrl *parent, wxWindowID id,
-                const wxPoint &pos, const wxSize &size, 
-                const wxString &name)
+    wxDataViewHeaderWindow(wxDataViewCtrl *parent)
+        : wxHeaderCtrl(parent)

     {
     {

-        return wxWindow::Create(parent, id, pos, size, wxNO_BORDER, name);

     }
 
     }
 

-    void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
-    wxDataViewCtrl *GetOwner() { return m_owner; }
-
-    // called on column addition/removal
-    virtual void UpdateDisplay() { /* by default, do nothing */ }
+    wxDataViewCtrl *GetOwner() const
+        { return static_cast<wxDataViewCtrl *>(GetParent()); }

 
 

-    // returns the n-th column
-    virtual wxDataViewColumn *GetColumn(unsigned int n)
+protected:
+    // implement/override wxHeaderCtrl functions by forwarding them to the main
+    // control
+    virtual const wxHeaderColumn& GetColumn(unsigned int idx) const

     {
     {

-        wxASSERT(m_owner);
-        wxDataViewColumn *ret = m_owner->GetColumn(n); 
-        wxASSERT(ret);
-
-        return ret; 
+        return *(GetOwner()->GetColumn(idx));

     }
 
     }
 

-protected:
-    wxDataViewCtrl      *m_owner;
-
-    // sends an event generated from the n-th wxDataViewColumn
-    void SendEvent(wxEventType type, unsigned int n);
-};
-
-// on wxMSW the header window (only that part however) can be made native!
-#if defined(__WXMSW__) && USE_NATIVE_HEADER_WINDOW
-
-#define COLUMN_WIDTH_OFFSET         2
-#define wxDataViewHeaderWindowMSW   wxDataViewHeaderWindow
+    virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
+    {
+        wxDataViewCtrl * const owner = GetOwner();

 
 

-class wxDataViewHeaderWindowMSW : public wxDataViewHeaderWindowBase
-{
-public:
+        int widthContents = owner->GetBestColumnWidth(idx);
+        owner->GetColumn(idx)->SetWidth(wxMax(widthTitle, widthContents));
+        owner->OnColumnChange(idx);

 
 

-    wxDataViewHeaderWindowMSW( wxDataViewCtrl *parent,
-                               wxWindowID id,
-                               const wxPoint &pos = wxDefaultPosition,
-                               const wxSize &size = wxDefaultSize,
-                               const wxString &name = wxT("wxdataviewctrlheaderwindow") )
-    { 
-        Create(parent, id, pos, size, name);
+        return true;

     }
 
     }
 

-    bool Create(wxDataViewCtrl *parent, wxWindowID id,
-                const wxPoint &pos, const wxSize &size, 
-                const wxString &name);
-
-    ~wxDataViewHeaderWindowMSW();
-
-    // called when any column setting is changed and/or changed
-    // the column count
-    virtual void UpdateDisplay();
-
-    // called when the main window gets scrolled
-    virtual void ScrollWindow(int dx, int dy, const wxRect *rect = NULL);
-
-protected:
-    virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
-    virtual void DoSetSize(int x, int y, int width, int height, int sizeFlags);
-
-    unsigned int GetColumnIdxFromHeader(NMHEADER *nmHDR);
-
-    wxDataViewColumn *GetColumnFromHeader(NMHEADER *nmHDR)
-        { return GetColumn(GetColumnIdxFromHeader(nmHDR)); }
-

 private:
 private:

-    DECLARE_DYNAMIC_CLASS(wxDataViewHeaderWindowMSW)
-};
-
-#else       // !defined(__WXMSW__)
+    bool SendEvent(wxEventType type, unsigned int n)
+    {
+        wxDataViewCtrl * const owner = GetOwner();
+        wxDataViewEvent event(type, owner->GetId());

 
 

-#define HEADER_WINDOW_HEIGHT            25
-#define HEADER_HORIZ_BORDER             5
-#define HEADER_VERT_BORDER              3
-#define wxGenericDataViewHeaderWindow   wxDataViewHeaderWindow
+        event.SetEventObject(owner);
+        event.SetColumn(n);
+        event.SetDataViewColumn(owner->GetColumn(n));
+        event.SetModel(owner->GetModel());

 
 

-class wxGenericDataViewHeaderWindow : public wxDataViewHeaderWindowBase
-{
-public:
-    wxGenericDataViewHeaderWindow( wxDataViewCtrl *parent,
-                                    wxWindowID id,
-                                    const wxPoint &pos = wxDefaultPosition,
-                                    const wxSize &size = wxDefaultSize,
-                                    const wxString &name = wxT("wxdataviewctrlheaderwindow") )
-    { 
-        Init();
-        Create(parent, id, pos, size, name);
+        // for events created by wxDataViewHeaderWindow the
+        // row / value fields are not valid
+        return owner->GetEventHandler()->ProcessEvent(event);

     }
 
     }
 

-    bool Create(wxDataViewCtrl *parent, wxWindowID id,
-                const wxPoint &pos, const wxSize &size, 
-                const wxString &name);
-
-    ~wxGenericDataViewHeaderWindow()
+    void OnClick(wxHeaderCtrlEvent& event)

     {
     {

-        delete m_resizeCursor;
-    }
-
-    // event handlers:
-
-    void OnPaint( wxPaintEvent &event );
-    void OnMouse( wxMouseEvent &event );
-    void OnSetFocus( wxFocusEvent &event );
+        const unsigned idx = event.GetColumn();

 
 

+        if ( SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, idx) )
+            return;

 
 

-protected:
-
-    // vars used for column resizing:
-
-    wxCursor            *m_resizeCursor;
-    const wxCursor      *m_currentCursor;
-    bool                 m_isDragging;
+        // 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;
+        }

 
 

-    bool                 m_dirty;     // needs refresh?
-    int                  m_column;    // index of the column being resized
-    int                  m_currentX;  // divider line position in logical (unscrolled) coords
-    int                  m_minX;      // minimal position beyond which the divider line 
-                                      // can't be dragged in logical coords
+        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);
+            }

 
 

-    // the pen used to draw the current column width drag line
-    // when resizing the columsn
-    wxPen m_penCurrent;
+            owner->SetSortingColumnIndex(idx);
+            col->SetAsSortKey();
+        }

 
 

+        wxDataViewModel * const model = owner->GetModel();
+        if ( model )
+            model->Resort();

 
 

-    // internal utilities:
+        owner->OnColumnChange(idx);
+    }

 
 

-    void Init()
+    void OnRClick(wxHeaderCtrlEvent& event)

     {
     {

-        m_currentCursor = (wxCursor *) NULL;
-        m_resizeCursor = new wxCursor( wxCURSOR_SIZEWE );
-
-        m_isDragging = false;
-        m_dirty = false;
+        if ( !SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK,
+                        event.GetColumn()) )
+            event.Skip();
+    }

 
 

-        m_column = wxNOT_FOUND;
-        m_currentX = 0;
-        m_minX = 0;
+    void OnEndResize(wxHeaderCtrlEvent& event)
+    {
+        wxDataViewCtrl * const owner = GetOwner();

 
 

-        wxColour col = wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
-        m_penCurrent = wxPen(col, 1, wxSOLID);
+        const unsigned col = event.GetColumn();
+        owner->GetColumn(col)->SetWidth(event.GetWidth());
+        GetOwner()->OnColumnChange(col);

     }
 
     }
 

-    void DrawCurrent();
-    void AdjustDC(wxDC& dc);
+    void OnEndReorder(wxHeaderCtrlEvent& event)
+    {
+        wxDataViewCtrl * const owner = GetOwner();
+        owner->ColumnMoved(owner->GetColumn(event.GetColumn()),
+                           event.GetNewOrder());
+    }

 
 

-private:
-    DECLARE_DYNAMIC_CLASS(wxGenericDataViewHeaderWindow)

     DECLARE_EVENT_TABLE()
     DECLARE_EVENT_TABLE()

+    DECLARE_NO_COPY_CLASS(wxDataViewHeaderWindow)

 };
 
 };
 

-#endif      // defined(__WXMSW__)
+BEGIN_EVENT_TABLE(wxDataViewHeaderWindow, wxHeaderCtrl)
+    EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
+    EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
+
+    EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnEndResize)
+
+    EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
+END_EVENT_TABLE()

 
 //-----------------------------------------------------------------------------
 // wxDataViewRenameTimer
 
 //-----------------------------------------------------------------------------
 // wxDataViewRenameTimer


@@ -242,50 +219,152 @@ public:
 };
 
 //-----------------------------------------------------------------------------
 };
 
 //-----------------------------------------------------------------------------

-// wxDataViewTextCtrlWrapper: wraps a wxTextCtrl for inline editing
+// wxDataViewTreeNode

 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------

+class wxDataViewTreeNode;
+WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
+WX_DEFINE_ARRAY( void* , wxDataViewTreeLeaves);

 
 

-class wxDataViewTextCtrlWrapper : public wxEvtHandler
+int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1, wxDataViewTreeNode ** node2);
+int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2);
+
+class wxDataViewTreeNode

 {
 public:
 {
 public:

-    // NB: text must be a valid object but not Create()d yet
-    wxDataViewTextCtrlWrapper( wxDataViewMainWindow *owner,
-                               wxTextCtrl *text,
-                               wxDataViewListModel *model,
-                               unsigned int col, unsigned int row,
-                               wxRect cellLabel );
+    wxDataViewTreeNode( wxDataViewTreeNode * parent = NULL )
+    {
+        m_parent = parent;
+        if (!parent)
+            m_open = true;
+        else
+            m_open = false;
+        m_hasChildren = false;
+        m_subTreeCount  = 0;
+    }

 
 

-    wxTextCtrl *GetText() const { return m_text; }
+    ~wxDataViewTreeNode()
+    {
+    }

 
 

-    void AcceptChangesAndFinish();
+    wxDataViewTreeNode * GetParent() const { return m_parent; }
+    void SetParent( wxDataViewTreeNode * parent ) { m_parent = parent; }
+    wxDataViewTreeNodes &  GetNodes() { return m_nodes; }
+    wxDataViewTreeLeaves & GetChildren() { return m_leaves; }

 
 

-protected:
-    void OnChar( wxKeyEvent &event );
-    void OnKeyUp( wxKeyEvent &event );
-    void OnKillFocus( wxFocusEvent &event );
+    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 );
+    }

 
 

-    bool AcceptChanges();
-    void Finish();
+    wxDataViewItem & GetItem() { return m_item; }
+    const wxDataViewItem & GetItem() const { return m_item; }
+    void SetItem( const wxDataViewItem & item ) { m_item = item; }

 
 

-private:
-    wxDataViewMainWindow   *m_owner;
-    wxTextCtrl             *m_text;
-    wxString                m_startValue;
-    wxDataViewListModel    *m_model;
-    unsigned int                  m_col;
-    unsigned int                  m_row;
-    bool                    m_finished;
-    bool                    m_aboutToFinish;
+    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;
+    }

 
 

-    DECLARE_EVENT_TABLE()
+    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; }
+
+    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 );
+        }
+    }
+
+private:
+    wxDataViewTreeNode  *m_parent;
+    wxDataViewTreeNodes  m_nodes;
+    wxDataViewTreeLeaves m_leaves;
+    wxDataViewItem       m_item;
+    bool                 m_open;
+    bool                 m_hasChildren;
+    int                  m_subTreeCount;

 };
 
 };
 

+int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1, wxDataViewTreeNode ** node2)
+{
+    return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
+}
+
+int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2)
+{
+    return g_model->Compare( *id1, *id2, g_column, g_asending );
+}
+
+
+

 //-----------------------------------------------------------------------------
 // wxDataViewMainWindow
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 // wxDataViewMainWindow
 //-----------------------------------------------------------------------------
 

-WX_DEFINE_SORTED_USER_EXPORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection, 
+WX_DEFINE_SORTED_USER_EXPORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection,

                                             WXDLLIMPEXP_ADV);
                                             WXDLLIMPEXP_ADV);

+WX_DECLARE_LIST(wxDataViewItem, ItemList);
+WX_DEFINE_LIST(ItemList)

 
 class wxDataViewMainWindow: public wxWindow
 {
 
 class wxDataViewMainWindow: public wxWindow
 {


@@ -297,15 +376,41 @@ public:
                             const wxString &name = wxT("wxdataviewctrlmainwindow") );
     virtual ~wxDataViewMainWindow();
 
                             const wxString &name = wxT("wxdataviewctrlmainwindow") );
     virtual ~wxDataViewMainWindow();
 

-    // notifications from wxDataViewListModel
-    bool RowAppended();
-    bool RowPrepended();
-    bool RowInserted( unsigned int before );
-    bool RowDeleted( unsigned int row );
-    bool RowChanged( unsigned int row );
-    bool ValueChanged( unsigned int col, unsigned int row );
-    bool RowsReordered( unsigned int *new_order );
+    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();
     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; }
 
     void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
     wxDataViewCtrl *GetOwner() { return m_owner; }


@@ -323,28 +428,33 @@ public:
     void OnInternalIdle();
 
     void OnRenameTimer();
     void OnInternalIdle();
 
     void OnRenameTimer();

-    void FinishEditing( wxTextCtrl *text );

 
     void ScrollWindow( int dx, int dy, const wxRect *rect = NULL );
 
     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 HasCurrentRow() { return m_currentRow != (unsigned int)-1; }
     void ChangeCurrentRow( unsigned int row );
 

-    bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); };
+    bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); }

     bool IsEmpty() { return GetRowCount() == 0; }
 
     int GetCountPerPage() const;
     int GetEndOfLastCol() const;
     unsigned int GetFirstVisibleRow() const;
     bool IsEmpty() { return GetRowCount() == 0; }
 
     int GetCountPerPage() const;
     int GetEndOfLastCol() const;
     unsigned int GetFirstVisibleRow() const;

-    unsigned int GetLastVisibleRow() const;
-    unsigned int GetRowCount() 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 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 RefreshRow( unsigned int row );
     void RefreshRows( unsigned int from, unsigned int to );


@@ -356,26 +466,74 @@ public:
         return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
     }
 
         return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
     }
 

-    //void EnsureVisible( unsigned int row );

     wxRect GetLineRect( unsigned int row ) const;
 
     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;
+
+    bool EnableDragSource( const wxDataFormat &format )
+    {
+        m_dragFormat = format;
+        m_dragEnabled = format != wxDF_INVALID;
+        return true;
+    }
+    bool EnableDropTarget( const wxDataFormat &format )
+    {
+        m_dropFormat = format;
+        m_dropEnabled = format != wxDF_INVALID;
+        return true;
+    }
+
+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;
 private:
     wxDataViewCtrl             *m_owner;
     int                         m_lineHeight;
     bool                        m_dirty;
 
     wxDataViewColumn           *m_currentCol;

-    unsigned int                      m_currentRow;
+    unsigned int                m_currentRow;

     wxDataViewSelection         m_selection;
 
     wxDataViewRenameTimer      *m_renameTimer;
     wxDataViewSelection         m_selection;
 
     wxDataViewRenameTimer      *m_renameTimer;

-    wxDataViewTextCtrlWrapper  *m_textctrlWrapper;

     bool                        m_lastOnSame;
 
     bool                        m_hasFocus;
 
     int                         m_dragCount;
     wxPoint                     m_dragStart;
     bool                        m_lastOnSame;
 
     bool                        m_hasFocus;
 
     int                         m_dragCount;
     wxPoint                     m_dragStart;

+    
+    bool                        m_dragEnabled;
+    wxDataFormat                m_dragFormat;
+    
+    bool                        m_dropEnabled;
+    wxDataFormat                m_dropFormat;

 
     // for double click logic
     unsigned int m_lineLastClicked,
 
     // for double click logic
     unsigned int m_lineLastClicked,


@@ -385,37 +543,41 @@ private:
     // the pen used to draw horiz/vertical rules
     wxPen m_penRule;
 
     // 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()
 };
 
 // ---------------------------------------------------------
 private:
     DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
     DECLARE_EVENT_TABLE()
 };
 
 // ---------------------------------------------------------

-// wxGenericDataViewListModelNotifier
+// wxGenericDataViewModelNotifier

 // ---------------------------------------------------------
 
 // ---------------------------------------------------------
 

-class wxGenericDataViewListModelNotifier: public wxDataViewListModelNotifier
+class wxGenericDataViewModelNotifier: public wxDataViewModelNotifier

 {
 public:
 {
 public:

-    wxGenericDataViewListModelNotifier( wxDataViewMainWindow *mainWindow )
+    wxGenericDataViewModelNotifier( wxDataViewMainWindow *mainWindow )

         { m_mainWindow = mainWindow; }
 
         { m_mainWindow = mainWindow; }
 

-    virtual bool RowAppended()
-        { return m_mainWindow->RowAppended(); }
-    virtual bool RowPrepended()
-        { return m_mainWindow->RowPrepended(); }
-    virtual bool RowInserted( unsigned int before )
-        { return m_mainWindow->RowInserted( before ); }
-    virtual bool RowDeleted( unsigned int row )
-        { return m_mainWindow->RowDeleted( row ); }
-    virtual bool RowChanged( unsigned int row )
-        { return m_mainWindow->RowChanged( row ); }
-    virtual bool ValueChanged( unsigned int col, unsigned int row )
-        { return m_mainWindow->ValueChanged( col, row ); }
-    virtual bool RowsReordered( unsigned int *new_order )
-        { return m_mainWindow->RowsReordered( new_order ); }
+    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 bool Cleared()
         { return m_mainWindow->Cleared(); }

+    virtual void Resort()
+         { m_mainWindow->Resort(); }

 
     wxDataViewMainWindow    *m_mainWindow;
 };
 
     wxDataViewMainWindow    *m_mainWindow;
 };


@@ -426,7 +588,7 @@ public:
 
 IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
 
 
 IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
 

-wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype, 
+wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,

                                         wxDataViewCellMode mode,
                                         int align) :
     wxDataViewRendererBase( varianttype, mode, align )
                                         wxDataViewCellMode mode,
                                         int align) :
     wxDataViewRendererBase( varianttype, mode, align )


@@ -434,6 +596,8 @@ wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,
     m_dc = NULL;
     m_align = align;
     m_mode = mode;
     m_dc = NULL;
     m_align = align;
     m_mode = mode;

+    m_wantsAttr = false;
+    m_hasAttr = false;

 }
 
 wxDataViewRenderer::~wxDataViewRenderer()
 }
 
 wxDataViewRenderer::~wxDataViewRenderer()


@@ -456,6 +620,28 @@ wxDC *wxDataViewRenderer::GetDC()
     return m_dc;
 }
 
     return m_dc;
 }
 

+void wxDataViewRenderer::SetAlignment( int align )
+{
+    m_align=align;
+}
+
+int wxDataViewRenderer::GetAlignment() const
+{
+    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;
+}

 
 // ---------------------------------------------------------
 // wxDataViewCustomRenderer
 
 // ---------------------------------------------------------
 // wxDataViewCustomRenderer


@@ -469,13 +655,23 @@ wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
 {
 }
 
 {
 }
 

+void wxDataViewCustomRenderer::RenderText( const wxString &text, int xoffset, wxRect cell, wxDC *dc, int state )
+{
+    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));
+}
+

 // ---------------------------------------------------------
 // wxDataViewTextRenderer
 // ---------------------------------------------------------
 
 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewCustomRenderer)
 
 // ---------------------------------------------------------
 // wxDataViewTextRenderer
 // ---------------------------------------------------------
 
 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewCustomRenderer)
 

-wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype, 
+wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype,

                                                 wxDataViewCellMode mode, int align ) :
     wxDataViewCustomRenderer( varianttype, mode, align )
 {
                                                 wxDataViewCellMode mode, int align ) :
     wxDataViewCustomRenderer( varianttype, mode, align )
 {


@@ -493,16 +689,29 @@ bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
     return false;
 }
 
     return false;
 }
 

-bool wxDataViewTextRenderer::Render( wxRect cell, wxDC *dc, int state )
+bool wxDataViewTextRenderer::HasEditorCtrl()

 {
 {

-    wxDataViewCtrl *view = GetOwner()->GetOwner();
-    wxColour col = (state & wxDATAVIEW_CELL_SELECTED) ?
-                        wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT) :
-                        view->GetForegroundColour();
+    return true;
+}

 
 

-    dc->SetTextForeground(col);
-    dc->DrawText( m_text, cell.x, cell.y );
+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;
 }
 
     return true;
 }
 


@@ -518,13 +727,67 @@ wxSize wxDataViewTextRenderer::GetSize() const
     return wxSize(80,20);
 }
 
     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
 // ---------------------------------------------------------
 
 IMPLEMENT_CLASS(wxDataViewBitmapRenderer, wxDataViewCustomRenderer)
 

-wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype, 
+wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype,

                                                     wxDataViewCellMode mode, int align ) :
     wxDataViewCustomRenderer( varianttype, mode, align )
 {
                                                     wxDataViewCellMode mode, int align ) :
     wxDataViewCustomRenderer( varianttype, mode, align )
 {


@@ -615,14 +878,14 @@ bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state
     return true;
 }
 
     return true;
 }
 

-bool wxDataViewToggleRenderer::Activate( wxRect WXUNUSED(cell), 
-                                         wxDataViewListModel *model, 
-                                         unsigned int col, unsigned int row )
+bool wxDataViewToggleRenderer::Activate( wxRect WXUNUSED(cell),
+                                         wxDataViewModel *model,
+                                         const wxDataViewItem & item, unsigned int col)

 {
     bool value = !m_toggle;
     wxVariant variant = value;
 {
     bool value = !m_toggle;
     wxVariant variant = value;

-    model->SetValue( variant, col, row );
-    model->ValueChanged( col, row );
+    model->SetValue( variant, item, col);
+    model->ValueChanged( item, col );

     return true;
 }
 
     return true;
 }
 


@@ -698,12 +961,12 @@ class wxDataViewDateRendererPopupTransient: public wxPopupTransientWindow
 {
 public:
     wxDataViewDateRendererPopupTransient( wxWindow* parent, wxDateTime *value,
 {
 public:
     wxDataViewDateRendererPopupTransient( wxWindow* parent, wxDateTime *value,

-        wxDataViewListModel *model, unsigned int col, unsigned int row ) :
-        wxPopupTransientWindow( parent, wxBORDER_SIMPLE )
+        wxDataViewModel *model, const wxDataViewItem & item, unsigned int col) :
+        wxPopupTransientWindow( parent, wxBORDER_SIMPLE ),
+        m_item( item )

     {
         m_model = model;
         m_col = col;
     {
         m_model = model;
         m_col = col;

-        m_row = row;

         m_cal = new wxCalendarCtrl( this, wxID_ANY, *value );
         wxBoxSizer *sizer = new wxBoxSizer( wxHORIZONTAL );
         sizer->Add( m_cal, 1, wxGROW );
         m_cal = new wxCalendarCtrl( this, wxID_ANY, *value );
         wxBoxSizer *sizer = new wxBoxSizer( wxHORIZONTAL );
         sizer->Add( m_cal, 1, wxGROW );


@@ -714,9 +977,9 @@ public:
     void OnCalendar( wxCalendarEvent &event );
 
     wxCalendarCtrl      *m_cal;
     void OnCalendar( wxCalendarEvent &event );
 
     wxCalendarCtrl      *m_cal;

-    wxDataViewListModel *m_model;
+    wxDataViewModel *m_model;

     unsigned int               m_col;
     unsigned int               m_col;

-    unsigned int               m_row;
+    const wxDataViewItem &   m_item;

 
 protected:
     virtual void OnDismiss()
 
 protected:
     virtual void OnDismiss()


@@ -735,8 +998,8 @@ void wxDataViewDateRendererPopupTransient::OnCalendar( wxCalendarEvent &event )
 {
     wxDateTime date = event.GetDate();
     wxVariant value = date;
 {
     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();
 }
 
     DismissAndNotify();
 }
 


@@ -763,12 +1026,10 @@ bool wxDataViewDateRenderer::GetValue( wxVariant &value ) const
     return true;
 }
 
     return true;
 }
 

-bool wxDataViewDateRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
+bool wxDataViewDateRenderer::Render( wxRect cell, wxDC *dc, int state )

 {
 {

-    dc->SetFont( GetOwner()->GetOwner()->GetFont() );

     wxString tmp = m_date.FormatDate();
     wxString tmp = m_date.FormatDate();

-    dc->DrawText( tmp, cell.x, cell.y );
-
+    RenderText( tmp, 0, cell, dc, state );

     return true;
 }
 
     return true;
 }
 


@@ -781,16 +1042,16 @@ wxSize wxDataViewDateRenderer::GetSize() const
     return wxSize(x,y+d);
 }
 
     return wxSize(x,y+d);
 }
 

-bool wxDataViewDateRenderer::Activate( wxRect WXUNUSED(cell), wxDataViewListModel *model, 
-                                       unsigned int col, unsigned int row )
+bool wxDataViewDateRenderer::Activate( wxRect WXUNUSED(cell), wxDataViewModel *model,
+                                       const wxDataViewItem & item, unsigned int col )

 {
     wxVariant variant;
 {
     wxVariant variant;

-    model->GetValue( variant, col, row );
+    model->GetValue( variant, item, col );

     wxDateTime value = variant.GetDateTime();
 
 #if wxUSE_DATE_RENDERER_POPUP
     wxDataViewDateRendererPopupTransient *popup = new wxDataViewDateRendererPopupTransient(
     wxDateTime value = variant.GetDateTime();
 
 #if wxUSE_DATE_RENDERER_POPUP
     wxDataViewDateRendererPopupTransient *popup = new wxDataViewDateRendererPopupTransient(

-        GetOwner()->GetOwner()->GetParent(), &value, model, col, row );
+        GetOwner()->GetOwner()->GetParent(), &value, model, item, col);

     wxPoint pos = wxGetMousePosition();
     popup->Move( pos );
     popup->Layout();
     wxPoint pos = wxGetMousePosition();
     popup->Move( pos );
     popup->Layout();


@@ -802,1011 +1063,704 @@ bool wxDataViewDateRenderer::Activate( wxRect WXUNUSED(cell), wxDataViewListMode
 }
 
 // ---------------------------------------------------------
 }
 
 // ---------------------------------------------------------

-// wxDataViewColumn
+// wxDataViewIconTextRenderer

 // ---------------------------------------------------------
 
 // ---------------------------------------------------------
 

-IMPLEMENT_ABSTRACT_CLASS(wxDataViewColumn, wxDataViewColumnBase)
+IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewCustomRenderer)

 
 

-wxDataViewColumn::wxDataViewColumn( const wxString &title, wxDataViewRenderer *cell, 
-                                    unsigned int model_column,
-                                    int width, wxAlignment align, int flags ) :
-    wxDataViewColumnBase( title, cell, model_column, width, align, flags )
+wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
+  const wxString &varianttype, wxDataViewCellMode mode, int align ) :
+    wxDataViewCustomRenderer( varianttype, mode, align )

 {
 {

+    SetMode(mode);

     SetAlignment(align);
     SetAlignment(align);

-    SetTitle(title);
-    SetFlags(flags);
-
-    Init(width < 0 ? wxDVC_DEFAULT_WIDTH : width);

 }
 
 }
 

-wxDataViewColumn::wxDataViewColumn( const wxBitmap &bitmap, wxDataViewRenderer *cell, 
-                                    unsigned int model_column,
-                                    int width, wxAlignment align, int flags ) :
-    wxDataViewColumnBase( bitmap, cell, model_column, width, align, flags )
+wxDataViewIconTextRenderer::~wxDataViewIconTextRenderer()

 {
 {

-    SetAlignment(align);
-    SetFlags(flags);
-
-    Init(width < 0 ? wxDVC_TOGGLE_DEFAULT_WIDTH : width);

 }
 
 }
 

-wxDataViewColumn::~wxDataViewColumn()
+bool wxDataViewIconTextRenderer::SetValue( const wxVariant &value )

 {
 {

+    m_value << value;
+    return true;

 }
 
 }
 

-void wxDataViewColumn::Init( int width )
+bool wxDataViewIconTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const

 {
 {

-    m_width = width;
-    m_minWidth = wxDVC_DEFAULT_MINWIDTH;
+    return false;

 }
 
 }
 

-void wxDataViewColumn::SetResizeable( bool resizeable )
+bool wxDataViewIconTextRenderer::Render( wxRect cell, wxDC *dc, int state )

 {
 {

-    if (resizeable)
-        m_flags |= wxDATAVIEW_COL_RESIZABLE;
-    else
-        m_flags &= ~wxDATAVIEW_COL_RESIZABLE;
-}
+    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;
+    }

 
 

-void wxDataViewColumn::SetHidden( bool hidden )
-{
-    if (hidden)
-        m_flags |= wxDATAVIEW_COL_HIDDEN;
-    else
-        m_flags &= ~wxDATAVIEW_COL_HIDDEN;
+    RenderText( m_value.GetText(), xoffset, cell, dc, state );

 
 

-    // tell our owner to e.g. update its scrollbars:
-    if (GetOwner())
-        GetOwner()->OnColumnChange();
+    return true;

 }
 
 }
 

-void wxDataViewColumn::SetSortable( bool sortable )
+wxSize wxDataViewIconTextRenderer::GetSize() const

 {
 {

-    if (sortable)
-        m_flags |= wxDATAVIEW_COL_SORTABLE;
-    else
-        m_flags &= ~wxDATAVIEW_COL_SORTABLE;
+    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);

 }
 
 }
 

-void wxDataViewColumn::SetSortOrder( bool WXUNUSED(ascending) )
+wxControl *
+wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow * WXUNUSED(parent),
+                                             wxRect WXUNUSED(labelRect),
+                                             const wxVariant& WXUNUSED(value))

 {
 {

-    // TODO
+    return NULL;

 }
 
 }
 

-bool wxDataViewColumn::IsSortOrderAscending() const
+bool
+wxDataViewIconTextRenderer::GetValueFromEditorCtrl(wxControl* WXUNUSED(editor),
+                                                   wxVariant& WXUNUSED(value))

 {
 {

-    // TODO
-    return true;
+    return false;

 }
 
 }
 

-void wxDataViewColumn::SetInternalWidth( int width )
-{
-    m_width = width;
+//-----------------------------------------------------------------------------
+// wxDataViewRenameTimer
+//-----------------------------------------------------------------------------

 
 

-    // the scrollbars of the wxDataViewCtrl needs to be recalculated!
-    if (m_owner && m_owner->m_clientArea)
-        m_owner->m_clientArea->RecalculateDisplay();
+wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
+{
+    m_owner = owner;

 }
 
 }
 

-void wxDataViewColumn::SetWidth( int width )
+void wxDataViewRenameTimer::Notify()

 {
 {

-    m_owner->m_headerArea->UpdateDisplay();
-
-    SetInternalWidth(width);
+    m_owner->OnRenameTimer();

 }
 
 }
 

-

 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------

-// wxDataViewHeaderWindowBase
+// wxDataViewMainWindow

 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 

-void wxDataViewHeaderWindowBase::SendEvent(wxEventType type, unsigned int n)
+//The tree building helper, declared firstly
+static void BuildTreeHelper( wxDataViewModel * model,  wxDataViewItem & item, wxDataViewTreeNode * node);
+
+int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )

 {
 {

-    wxWindow *parent = GetParent();
-    wxDataViewEvent le(type, parent->GetId());
+    if (row1 > row2) return 1;
+    if (row1 == row2) return 0;
+    return -1;
+}

 
 

-    le.SetEventObject(parent);
-    le.SetColumn(n);
-    le.SetDataViewColumn(GetColumn(n));
-    le.SetModel(GetOwner()->GetModel());

 
 

-    // for events created by wxDataViewHeaderWindow the
-    // row / value fields are not valid
+IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)

 
 

-    parent->GetEventHandler()->ProcessEvent(le);
-}
+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()

 
 

-#if defined(__WXMSW__) && USE_NATIVE_HEADER_WINDOW
+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 )

 
 

-// implemented in msw/window.cpp:
-void wxAssociateWinWithHandle(HWND hWnd, wxWindowMSW *win);
-void wxRemoveHandleAssociation(wxWindowMSW *win);
+{
+    SetOwner( parent );

 
 

-// implemented in msw/listctrl.cpp:
-unsigned int wxMSWGetColumnClicked(NMHDR *nmhdr, POINT *ptClick);
+    m_lastOnSame = false;
+    m_renameTimer = new wxDataViewRenameTimer( this );

 
 

-IMPLEMENT_ABSTRACT_CLASS(wxDataViewHeaderWindowMSW, wxWindow);
+    // TODO: user better initial values/nothing selected
+    m_currentCol = NULL;
+    m_currentRow = 0;

 
 

-bool wxDataViewHeaderWindowMSW::Create( wxDataViewCtrl *parent, wxWindowID id,
-                                        const wxPoint &pos, const wxSize &size, 
-                                        const wxString &name )
-{
-    m_owner = parent;
+    m_lineHeight = wxMax( 17, GetCharHeight() + 2 ); // 17 = mini icon height + 1

 
 

-    if ( !CreateControl(parent, id, pos, size, 0, wxDefaultValidator, name) )
-        return false;
+    m_dragCount = 0;
+    m_dragStart = wxPoint(0,0);
+    m_lineLastClicked = (unsigned int) -1;
+    m_lineBeforeLastClicked = (unsigned int) -1;
+    m_lineSelectSingleOnUp = (unsigned int) -1;

 
 

-    int x = pos.x == wxDefaultCoord ? 0 : pos.x,
-        y = pos.y == wxDefaultCoord ? 0 : pos.y,
-        w = size.x == wxDefaultCoord ? 1 : size.x,
-        h = size.y == wxDefaultCoord ? 22 : size.y;
-
-    // create the native WC_HEADER window:
-    WXHWND hwndParent = (HWND)parent->GetHandle();
-    WXDWORD msStyle = WS_CHILD | HDS_BUTTONS | HDS_HORZ | HDS_HOTTRACK | HDS_FULLDRAG;
-    m_hWnd = CreateWindowEx(0, 
-                            WC_HEADER, 
-                            (LPCTSTR) NULL, 
-                            msStyle,
-                            x, y, w, h,
-                            (HWND)hwndParent, 
-                            (HMENU)-1, 
-                            wxGetInstance(), 
-                            (LPVOID) NULL);
-    if (m_hWnd == NULL) 
-    {
-        wxLogLastError(_T("CreateWindowEx"));
-        return false;
-    }
+    m_dragEnabled = false;
+    m_dropEnabled = false;

 
 

-    // we need to do the association to force wxWindow::HandleNotify
-    // to call wxDataViewHeaderWindow::MSWOnNotify
-    wxAssociateWinWithHandle((HWND)m_hWnd, this);
+    m_hasFocus = false;

 
 

-    // the following is required to get the default win's font for 
-    // header windows and must be done befor sending the HDM_LAYOUT msg
-    SetFont(GetFont());
+    SetBackgroundColour( *wxWHITE );

 
 

-    RECT rcParent;
-    HDLAYOUT hdl;
-    WINDOWPOS wp;
+    SetBackgroundStyle(wxBG_STYLE_CUSTOM);

 
 

-    // Retrieve the bounding rectangle of the parent window's 
-    // client area, and then request size and position values 
-    // from the header control. 
-    ::GetClientRect((HWND)hwndParent, &rcParent); 
-    
-    hdl.prc = &rcParent; 
-    hdl.pwpos = &wp; 
-    if (!SendMessage((HWND)m_hWnd, HDM_LAYOUT, 0, (LPARAM) &hdl)) 
-    {
-        wxLogLastError(_T("SendMessage"));
-        return false;
-    }
-    
-    // Set the size, position, and visibility of the header control. 
-    SetWindowPos((HWND)m_hWnd, 
-                 wp.hwndInsertAfter, 
-                 wp.x, wp.y, 
-                 wp.cx, wp.cy, 
-                 wp.flags | SWP_SHOWWINDOW);
-
-    // set our size hints: wxDataViewCtrl will put this wxWindow inside
-    // a wxBoxSizer and in order to avoid super-big header windows,
-    // we need to set our height as fixed
-    SetMinSize(wxSize(-1, wp.cy));
-    SetMaxSize(wxSize(-1, wp.cy));
+    m_penRule = wxPen(GetRuleColour());

 
 

-    return true;
+    //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();

 }
 
 }
 

-wxDataViewHeaderWindowMSW::~wxDataViewHeaderWindow()
+wxDataViewMainWindow::~wxDataViewMainWindow()

 {
 {

-    wxRemoveHandleAssociation(this);
+    DestroyTree();
+    delete m_renameTimer;

 }
 
 }
 

-void wxDataViewHeaderWindowMSW::UpdateDisplay()
+void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )

 {
 {

-    // remove old columns
-    for (int i=0, max=Header_GetItemCount((HWND)m_hWnd); i < max; i++)
-        Header_DeleteItem((HWND)m_hWnd, 0);
-    
-    // add the updated array of columns to the header control
+    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 cols = GetOwner()->GetColumnCount();

-    unsigned int added = 0;
-    for (unsigned int i = 0; i < cols; i++)
+    unsigned int col_start = 0;
+    unsigned int x_start;
+    for (x_start = 0; col_start < cols; col_start++)

     {
     {

-        wxDataViewColumn *col = GetColumn( i );
+        wxDataViewColumn *col = GetOwner()->GetColumnAt(col_start);

         if (col->IsHidden())
         if (col->IsHidden())

-            continue;      // don't add it!
-
-        HDITEM hdi;
-        hdi.mask = HDI_TEXT | HDI_FORMAT | HDI_WIDTH;
-        hdi.pszText = (wxChar *) col->GetTitle().c_str();
-        hdi.cxy = col->GetWidth();
-        hdi.cchTextMax = sizeof(hdi.pszText)/sizeof(hdi.pszText[0]);
-        hdi.fmt = HDF_LEFT | HDF_STRING;
-
-        // lParam is reserved for application's use:
-        // we store there the column index to use it later in MSWOnNotify
-        // (since columns may have been hidden)
-        hdi.lParam = (LPARAM)i;
-
-        // the native wxMSW implementation of the header window
-        // draws the column separator COLUMN_WIDTH_OFFSET pixels 
-        // on the right: to correct this effect we make the column
-        // exactly COLUMN_WIDTH_OFFSET wider (for the first column):
-        if (i == 0)
-            hdi.cxy += COLUMN_WIDTH_OFFSET;
-
-        switch (col->GetAlignment())
-        {
-        case wxALIGN_LEFT:
-            hdi.fmt |= HDF_LEFT;
-            break;
-        case wxALIGN_CENTER:
-        case wxALIGN_CENTER_HORIZONTAL:
-            hdi.fmt |= HDF_CENTER;
-            break;
-        case wxALIGN_RIGHT:
-            hdi.fmt |= HDF_RIGHT;
+            continue;      // skip it!
+
+        unsigned int w = col->GetWidth();
+        if (x_start+w >= (unsigned int)update.x)

             break;
             break;

-        }
-        
-        SendMessage((HWND)m_hWnd, HDM_INSERTITEM, 
-                    (WPARAM)added, (LPARAM)&hdi); 
-        added++;
+
+        x_start += w;

     }
     }

-}

 
 

-unsigned int wxDataViewHeaderWindowMSW::GetColumnIdxFromHeader(NMHEADER *nmHDR)
-{
-    unsigned int idx;
+    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!

 
 

-    // NOTE: we don't just return nmHDR->iItem because when there are
-    //       hidden columns, nmHDR->iItem may be different from
-    //       nmHDR->pitem->lParam
+        if (x_last > (unsigned int)update.GetRight())
+            break;
+
+        x_last += col->GetWidth();
+    }

 
 

-    if (nmHDR->pitem && nmHDR->pitem->mask & HDI_LPARAM)
+    // Draw horizontal rules if required
+    if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )

     {
     {

-        idx = (unsigned int)nmHDR->pitem->lParam;
-        return idx;
+        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);
+        }

     }
 
     }
 

-    HDITEM item;
-    item.mask = HDI_LPARAM;
-    Header_GetItem((HWND)m_hWnd, nmHDR->iItem, &item);
+    // 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

 
 

-    return (unsigned int)item.lParam;
-}
+            dc.DrawLine(x, GetLineStart( item_start ),
+                        x, GetLineStart( item_last ) );

 
 

-bool wxDataViewHeaderWindowMSW::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
-{
-    NMHDR *nmhdr = (NMHDR *)lParam;
+            x += col->GetWidth();
+        }

 
 

-    // is it a message from the header?
-    if ( nmhdr->hwndFrom != (HWND)m_hWnd )
-        return wxWindow::MSWOnNotify(idCtrl, lParam, result);
+        // Draw last vertical rule
+        dc.DrawLine(x, GetLineStart( item_start ),
+                    x, GetLineStart( item_last ) );
+    }

 
 

-    NMHEADER *nmHDR = (NMHEADER *)nmhdr;
-    switch ( nmhdr->code )
+    // redraw the background for the items which are selected/current
+    for (unsigned int item = item_start; item < item_last; item++)

     {
     {

-        case HDN_BEGINTRACK:
-            // user has started to resize a column:
-            // do we need to veto it?
-            if (!GetColumn(nmHDR->iItem)->IsResizeable())
-            {
-                // veto it!
-                *result = TRUE;
-            }
-            break;
+        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;

 
 

-        case HDN_BEGINDRAG:
-            // user has started to reorder a column
-            break;
+            wxRect rect( x_start, GetLineStart( item ), x_last, GetLineHeight( item ) );
+            wxRendererNative::Get().DrawItemSelectionRect
+                                (
+                                    this,
+                                    dc,
+                                    rect,
+                                    flags
+                                );
+        }
+    }

 
 

-        case HDN_ITEMCHANGING:
-            if (nmHDR->pitem != NULL && 
-                (nmHDR->pitem->mask & HDI_WIDTH) != 0)
-            {
-                int minWidth = GetColumnFromHeader(nmHDR)->GetMinWidth();
-                if (nmHDR->pitem->cxy < minWidth)
-                {
-                    // do not allow the user to resize this column under 
-                    // its minimal width:
-                    *result = TRUE;
-                }
-            }
-            break;
+    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();

 
 

-        case HDN_ITEMCHANGED:   // user is resizing a column
-        case HDN_ENDTRACK:      // user has finished resizing a column
-        case HDN_ENDDRAG:       // user has finished reordering a column
+        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;

 
 

-            // update the width of the modified column:
-            if (nmHDR->pitem != NULL && 
-                (nmHDR->pitem->mask & HDI_WIDTH) != 0)
+            if (!IsVirtualList())

             {
             {

-                unsigned int idx = GetColumnIdxFromHeader(nmHDR);
-                unsigned int w = nmHDR->pitem->cxy;
-                wxDataViewColumn *col = GetColumn(idx);
+                node = GetTreeNodeByRow(item);
+                if( node == NULL )
+                    continue;

 
 

-                // see UpdateDisplay() for more info about COLUMN_WIDTH_OFFSET
-                if (idx == 0 && w > COLUMN_WIDTH_OFFSET)
-                    w -= COLUMN_WIDTH_OFFSET;
+                dataitem = node->GetItem();

 
 

-                if (w >= (unsigned)col->GetMinWidth())
-                    col->SetInternalWidth(w);
+                if ((i > 0) && model->IsContainer(dataitem) && !model->HasContainerColumns(dataitem))
+                    continue;

             }
             }

-            break;
-
-        case HDN_ITEMCLICK:
+            else

             {
             {

-                unsigned int idx = GetColumnIdxFromHeader(nmHDR);
-                wxEventType evt = nmHDR->iButton == 0 ? 
-                        wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK :
-                        wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK;
-                SendEvent(evt, idx);
+                dataitem = wxDataViewItem( wxUIntToPtr(item) );

             }
             }

-            break;

 
 

-        case NM_RCLICK:
+            model->GetValue( value, dataitem, col->GetModelColumn());
+            cell->SetValue( value );
+
+            if (cell->GetWantsAttr())

             {
             {

-                // NOTE: for some reason (i.e. for a bug in Windows)
-                //       the HDN_ITEMCLICK notification is not sent on
-                //       right clicks, so we need to handle NM_RCLICK
+                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 (?)

 
 

-                POINT ptClick;
-                int column = wxMSWGetColumnClicked(nmhdr, &ptClick);
-                if (column != wxNOT_FOUND)
+            //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() )

                 {
                 {

-                    HDITEM item;
-                    item.mask = HDI_LPARAM;
-                    Header_GetItem((HWND)m_hWnd, column, &item);
-
-                    // 'idx' may be different from 'column' if there are
-                    // hidden columns...
-                    unsigned int idx = (unsigned int)item.lParam;
-                    SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK,
-                              idx);
+                    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 );

             }
             }

-            break;
-
-        case HDN_GETDISPINFOW:
-            // see wxListCtrl::MSWOnNotify for more info!
-            break;
-
-        case HDN_ITEMDBLCLICK:
+            if (node && !node->HasChildren())

             {
             {

-                unsigned int idx = GetColumnIdxFromHeader(nmHDR);
-                int w = GetOwner()->GetBestColumnWidth(idx);
-
-                // update the native control:
-                HDITEM hd;
-                ZeroMemory(&hd, sizeof(hd));
-                hd.mask = HDI_WIDTH;
-                hd.cxy = w;
-                Header_SetItem(GetHwnd(), 
-                               nmHDR->iItem,  // NOTE: we don't want 'idx' here!
-                               &hd);
-
-                // update the wxDataViewColumn class:
-                GetColumn(idx)->SetInternalWidth(w);
+                // 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);

             }
             }

-            break;
-
-        default:
-            return wxWindow::MSWOnNotify(idCtrl, lParam, result);
-    }
-
-    return true;
-}
-
-void wxDataViewHeaderWindowMSW::ScrollWindow(int WXUNUSED(dx), int WXUNUSED(dy), 
-                                             const wxRect *WXUNUSED(rect))
-{
-    wxSize ourSz = GetClientSize();
-    wxSize ownerSz = m_owner->GetClientSize();

 
 

-    // where should the (logical) origin of this window be placed?
-    int x1 = 0, y1 = 0;
-    m_owner->CalcUnscrolledPosition(0, 0, &x1, &y1);
-
-    // put this window on top of our parent and 
-    SetWindowPos((HWND)m_hWnd, HWND_TOP, -x1, 0, 
-                  ownerSz.GetWidth() + x1, ourSz.GetHeight(), 
-                  SWP_SHOWWINDOW);
-}
-
-void wxDataViewHeaderWindowMSW::DoSetSize(int WXUNUSED(x), int WXUNUSED(y), 
-                                          int WXUNUSED(w), int WXUNUSED(h), 
-                                          int WXUNUSED(f))
-{
-    // the wxDataViewCtrl's internal wxBoxSizer will call this function when
-    // the wxDataViewCtrl window gets resized: the following dummy call
-    // to ScrollWindow() is required in order to get this header window
-    // correctly repainted when it's (horizontally) scrolled:
+            // 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;

 
 

-    ScrollWindow(0, 0);
-}
+            wxRect item_rect(cell_rect.GetTopLeft(), size);
+            int align = cell->CalculateAlignment();

 
 

-#else       // !defined(__WXMSW__)
+            // 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

 
 

-IMPLEMENT_ABSTRACT_CLASS(wxGenericDataViewHeaderWindow, wxWindow)
-BEGIN_EVENT_TABLE(wxGenericDataViewHeaderWindow, wxWindow)
-    EVT_PAINT         (wxGenericDataViewHeaderWindow::OnPaint)
-    EVT_MOUSE_EVENTS  (wxGenericDataViewHeaderWindow::OnMouse)
-    EVT_SET_FOCUS     (wxGenericDataViewHeaderWindow::OnSetFocus)
-END_EVENT_TABLE()
+            // 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

 
 

-bool wxGenericDataViewHeaderWindow::Create(wxDataViewCtrl *parent, wxWindowID id,
-                                           const wxPoint &pos, const wxSize &size, 
-                                           const wxString &name ) 
-{
-    m_owner = parent;
+            // add padding
+            item_rect.x += PADDING_RIGHTLEFT;
+            item_rect.width = size.x - 2 * PADDING_RIGHTLEFT;

 
 

-    if (!wxDataViewHeaderWindowBase::Create(parent, id, pos, size, name))
-        return false;
+            //Here we add the tree indent
+            item_rect.x += indent;

 
 

-    wxVisualAttributes attr = wxPanel::GetClassDefaultAttributes();
-    SetBackgroundStyle( wxBG_STYLE_CUSTOM );
-    SetOwnForegroundColour( attr.colFg );
-    SetOwnBackgroundColour( attr.colBg );
-    if (!m_hasFont)
-        SetOwnFont( attr.font );
+            int state = 0;
+            if (m_hasFocus && (m_selection.Index(item) != wxNOT_FOUND))
+                state |= wxDATAVIEW_CELL_SELECTED;

 
 

-    // set our size hints: wxDataViewCtrl will put this wxWindow inside
-    // a wxBoxSizer and in order to avoid super-big header windows,
-    // we need to set our height as fixed
-    SetMinSize(wxSize(-1, HEADER_WINDOW_HEIGHT));
-    SetMaxSize(wxSize(-1, HEADER_WINDOW_HEIGHT));
+            // 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();
+        }

 
 

-    return true;
+        cell_rect.x += cell_rect.width;
+    }

 }
 
 }
 

-void wxGenericDataViewHeaderWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
+void wxDataViewMainWindow::OnRenameTimer()

 {
 {

-    int w, h;
-    GetClientSize( &w, &h );
-
-    wxAutoBufferedPaintDC dc( this );
-
-    dc.SetBackground(GetBackgroundColour());
-    dc.Clear();
-
-    int xpix;
-    m_owner->GetScrollPixelsPerUnit( &xpix, NULL );
-
-    int x;
-    m_owner->GetViewStart( &x, NULL );
-
-    // account for the horz scrollbar offset
-    dc.SetDeviceOrigin( -x * xpix, 0 );
-
-    dc.SetFont( GetFont() );
+    // 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;
     unsigned int cols = GetOwner()->GetColumnCount();
     unsigned int i;

-    int xpos = 0;

     for (i = 0; i < cols; i++)
     {
     for (i = 0; i < cols; i++)
     {

-        wxDataViewColumn *col = GetColumn( i );
-        if (col->IsHidden())
+        wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
+        if (c->IsHidden())

             continue;      // skip it!
 
             continue;      // skip it!
 

-        int cw = col->GetWidth();
-        int ch = h;
-
-        wxRendererNative::Get().DrawHeaderButton
-                                (
-                                    this,
-                                    dc,
-                                    wxRect(xpos, 0, cw, ch-1),
-                                    m_parent->IsEnabled() ? 0
-                                                          : (int)wxCONTROL_DISABLED
-                                );
-
-        // align as required the column title:
-        int x = xpos;
-        wxSize titleSz = dc.GetTextExtent(col->GetTitle());
-        switch (col->GetAlignment())
-        {
-        case wxALIGN_LEFT:
-            x += HEADER_HORIZ_BORDER;
-            break;
-        case wxALIGN_CENTER:
-        case wxALIGN_CENTER_HORIZONTAL:
-            x += (cw - titleSz.GetWidth() - 2 * HEADER_HORIZ_BORDER)/2;
-            break;
-        case wxALIGN_RIGHT:
-            x += cw - titleSz.GetWidth() - HEADER_HORIZ_BORDER;
+        if (c == m_currentCol)

             break;
             break;

-        }
+        xpos += c->GetWidth();
+    }
+    wxRect labelRect( xpos,
+                      GetLineStart( m_currentRow ),
+                      m_currentCol->GetWidth(),
+                      GetLineHeight( m_currentRow ) );

 
 

-        // always center the title vertically:
-        int y = wxMax((ch - titleSz.GetHeight()) / 2, HEADER_VERT_BORDER);
+    GetOwner()->CalcScrolledPosition( labelRect.x, labelRect.y,
+                                     &labelRect.x, &labelRect.y);

 
 

-        dc.SetClippingRegion( xpos+HEADER_HORIZ_BORDER, 
-                              HEADER_VERT_BORDER,
-                              wxMax(cw - 2 * HEADER_HORIZ_BORDER, 1),  // width
-                              wxMax(ch - 2 * HEADER_VERT_BORDER, 1));  // height
-        dc.DrawText( col->GetTitle(), x, y );
-        dc.DestroyClippingRegion();
+    wxDataViewItem item = GetItemByRow( m_currentRow );
+    m_currentCol->GetRenderer()->StartEditing( item, labelRect );

 
 

-        xpos += cw;
-    }

 }
 
 }
 

-void wxGenericDataViewHeaderWindow::OnSetFocus( wxFocusEvent &event )
+//------------------------------------------------------------------
+// Helper class for do operation on the tree node
+//------------------------------------------------------------------
+class DoJob

 {
 {

-    GetParent()->SetFocus();
-    event.Skip();
-}
+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;
+};

 
 

-void wxGenericDataViewHeaderWindow::OnMouse( wxMouseEvent &event )
+bool Walker( wxDataViewTreeNode * node, DoJob & func )

 {
 {

-    // we want to work with logical coords
-    int x;
-    m_owner->CalcUnscrolledPosition(event.GetX(), 0, &x, NULL);
-    int y = event.GetY();
+    if( node==NULL )
+        return false;

 
 

-    if (m_isDragging)
+    switch( func( node ) )

     {
     {

-        // we don't draw the line beyond our window, 
-        // but we allow dragging it there
-        int w = 0;
-        GetClientSize( &w, NULL );
-        m_owner->CalcUnscrolledPosition(w, 0, &w, NULL);
-        w -= 6;
-
-        // erase the line if it was drawn
-        if (m_currentX < w) 
-            DrawCurrent();
-
-        if (event.ButtonUp()) 
-        {
-            m_isDragging = false;
-            if (HasCapture()) 
-                ReleaseMouse();
-
-            m_dirty = true;
-
-            GetColumn(m_column)->SetWidth(m_currentX - m_minX);
-
-            Refresh();
-            GetOwner()->Refresh();
-        }
-        else
-        {
-            m_currentX = wxMax(m_minX + 7, x);
-
-            // draw in the new location
-            if (m_currentX < w) DrawCurrent();
-        }
-
+        case DoJob::OK :
+            return true;
+        case DoJob::IGR:
+            return false;
+        case DoJob::CONT:
+        default:
+            ;

     }
     }

-    else     // not dragging
-    {
-        m_minX = 0;
-        m_column = wxNOT_FOUND;

 
 

-        bool hit_border = false;
+    wxDataViewTreeNodes nodes = node->GetNodes();
+    wxDataViewTreeLeaves leaves = node->GetChildren();

 
 

-        // end of the current column
-        int xpos = 0;
+    int len_nodes = nodes.GetCount();
+    int len = leaves.GetCount();
+    int i = 0, nodes_i = 0;

 
 

-        // find the column where this event occured
-        int countCol = m_owner->GetColumnCount();
-        for (int column = 0; column < countCol; column++) 
+    for(; i < len; i ++ )
+    {
+        void * n = leaves[i];
+        if( nodes_i < len_nodes && n == nodes[nodes_i]->GetItem().GetID() )

         {
         {

-            wxDataViewColumn *p = GetColumn(column);
+            wxDataViewTreeNode * nd = nodes[nodes_i];
+            nodes_i++;

 
 

-            if (p->IsHidden()) 
-                continue;   // skip if not shown
+            if( Walker( nd , func ) )
+                return true;

 
 

-            xpos += p->GetWidth();
-            m_column = column;
-            if ((abs(x-xpos) < 3) && (y < 22)) 
-            {
-                hit_border = true;
-                break;
-            }
-
-            if (x < xpos) 
-            {
-                // inside the column
-                break;
-            }
-
-            m_minX = xpos;

         }
         }

-
-        if (m_column == wxNOT_FOUND)
-            return;
-
-        bool resizeable = GetColumn(m_column)->IsResizeable();
-        if (event.LeftDClick() && resizeable)
-        {
-            GetColumn(m_column)->SetWidth(GetOwner()->GetBestColumnWidth(m_column));
-            Refresh();
-        }
-        else if (event.LeftDown() || event.RightUp())
-        {
-            if (hit_border && event.LeftDown() && resizeable) 
-            {
-                m_isDragging = true;
-                CaptureMouse();
-                m_currentX = x;
-                DrawCurrent();
-            }
-            else    // click on a column
+        else
+            switch( func( n ) )

             {
             {

-                wxEventType evt = event.LeftDown() ? 
-                        wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK :
-                        wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK;
-                SendEvent(evt, m_column);
+                case DoJob::OK :
+                    return true;
+                case DoJob::IGR:
+                    continue;
+                case DoJob::CONT:
+                default:
+                   ;

             }
             }

-        }
-        else if (event.Moving())
-        {
-            if (hit_border && resizeable) 
-                m_currentCursor = m_resizeCursor;
-            else
-                m_currentCursor = wxSTANDARD_CURSOR;
-
-            SetCursor(*m_currentCursor);
-        }

     }
     }

+    return false;

 }
 
 }
 

-void wxGenericDataViewHeaderWindow::DrawCurrent()
-{
-    int x1 = m_currentX;
-    int y1 = 0;
-    ClientToScreen (&x1, &y1);
-
-    int x2 = m_currentX-1;
-#ifdef __WXMSW__
-    ++x2; // but why ????
-#endif
-    int y2 = 0;
-    m_owner->GetClientSize( NULL, &y2 );
-    m_owner->ClientToScreen( &x2, &y2 );
-
-    wxScreenDC dc;
-    dc.SetLogicalFunction(wxINVERT);
-    dc.SetPen(m_penCurrent);
-    dc.SetBrush(*wxTRANSPARENT_BRUSH);
-    AdjustDC(dc);
-    dc.DrawLine(x1, y1, x2, y2);
-}
-
-void wxGenericDataViewHeaderWindow::AdjustDC(wxDC& dc)
-{
-    int xpix, x;
-
-    m_owner->GetScrollPixelsPerUnit( &xpix, NULL );
-    m_owner->GetViewStart( &x, NULL );
-
-    // shift the DC origin to match the position of the main window horizontal
-    // scrollbar: this allows us to always use logical coords
-    dc.SetDeviceOrigin( -x * xpix, 0 );
-}
-
-#endif      // defined(__WXMSW__)
-
-//-----------------------------------------------------------------------------
-// wxDataViewRenameTimer
-//-----------------------------------------------------------------------------
-
-wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
-{
-    m_owner = owner;
-}
-
-void wxDataViewRenameTimer::Notify()
-{
-    m_owner->OnRenameTimer();
-}
-
-//-----------------------------------------------------------------------------
-// wxDataViewTextCtrlWrapper: wraps a wxTextCtrl for inline editing
-//-----------------------------------------------------------------------------
-
-BEGIN_EVENT_TABLE(wxDataViewTextCtrlWrapper, wxEvtHandler)
-    EVT_CHAR           (wxDataViewTextCtrlWrapper::OnChar)
-    EVT_KEY_UP         (wxDataViewTextCtrlWrapper::OnKeyUp)
-    EVT_KILL_FOCUS     (wxDataViewTextCtrlWrapper::OnKillFocus)
-END_EVENT_TABLE()
-
-wxDataViewTextCtrlWrapper::wxDataViewTextCtrlWrapper(
-                        wxDataViewMainWindow *owner,
-                        wxTextCtrl *text,
-                        wxDataViewListModel *model,
-                        unsigned int col, unsigned int row,
-                        wxRect rectLabel )
+bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)

 {
 {

-    m_owner = owner;
-    m_model = model;
-    m_row = row;
-    m_col = col;
-    m_text = text;
-
-    m_finished = false;
-    m_aboutToFinish = false;
-
-    wxVariant value;
-    model->GetValue( value, col, row );
-    m_startValue = value.GetString();
-
-    m_owner->GetOwner()->CalcScrolledPosition(
-        rectLabel.x, rectLabel.y, &rectLabel.x, &rectLabel.y );
-
-    m_text->Create( owner, wxID_ANY, m_startValue,
-                    wxPoint(rectLabel.x-2,rectLabel.y-2),
-                    wxSize(rectLabel.width+7,rectLabel.height+4) );
-    m_text->SetFocus();
+    if (!m_root)
+    {
+        m_count++;
+        UpdateDisplay();
+        return true;
+    }

 
 

-    m_text->PushEventHandler(this);
-}
+    SortPrepare();

 
 

-void wxDataViewTextCtrlWrapper::AcceptChangesAndFinish()
-{
-    m_aboutToFinish = true;
+    wxDataViewTreeNode * node;
+    node = FindNode(parent);

 
 

-    // Notify the owner about the changes
-    AcceptChanges();
+    if( node == NULL )
+        return false;

 
 

-    // Even if vetoed, close the control (consistent with MSW)
-    Finish();
-}
+    node->SetHasChildren( true );

 
 

-void wxDataViewTextCtrlWrapper::OnChar( wxKeyEvent &event )
-{
-    switch ( event.m_keyCode )
+    if( g_model->IsContainer( item ) )

     {
     {

-        case WXK_RETURN:
-            AcceptChangesAndFinish();
-            break;
-
-        case WXK_ESCAPE:
-            // m_owner->OnRenameCancelled( m_itemEdited );
-            Finish();
-            break;
-
-        default:
-            event.Skip();
+        wxDataViewTreeNode * newnode = new wxDataViewTreeNode( node );
+        newnode->SetItem(item);
+        newnode->SetHasChildren( true );
+        node->AddNode( newnode);

     }
     }

-}
+    else
+        node->AddLeaf( item.GetID() );

 
 

-void wxDataViewTextCtrlWrapper::OnKeyUp( wxKeyEvent &event )
-{
-    if (m_finished)
-    {
-        event.Skip();
-        return;
-    }
+    node->ChangeSubTreeCount(1);

 
 

-    // auto-grow the textctrl
-    wxSize parentSize = m_owner->GetSize();
-    wxPoint myPos = m_text->GetPosition();
-    wxSize mySize = m_text->GetSize();
-    int sx, sy;
-    m_text->GetTextExtent(m_text->GetValue() + _T("MM"), &sx, &sy);
-    if (myPos.x + sx > parentSize.x)
-        sx = parentSize.x - myPos.x;
-    if (mySize.x > sx)
-        sx = mySize.x;
-    m_text->SetSize(sx, wxDefaultCoord);
+    m_count = -1;
+    UpdateDisplay();

 
 

-    event.Skip();
+    return true;

 }
 
 }
 

-void wxDataViewTextCtrlWrapper::OnKillFocus( wxFocusEvent &event )
+static void DestroyTreeHelper( wxDataViewTreeNode * node);
+
+bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
+                                       const wxDataViewItem& item)

 {
 {

-    if ( !m_finished && !m_aboutToFinish )
+    if (!m_root)

     {
     {

-        AcceptChanges();
-        //if ( !AcceptChanges() )
-        //    m_owner->OnRenameCancelled( m_itemEdited );
-
-        Finish();
-    }
+        m_count--;
+        if( m_currentRow > GetRowCount() )
+            m_currentRow = m_count - 1;

 
 

-    // We must let the native text control handle focus
-    event.Skip();
-}
+        m_selection.Empty();

 
 

-bool wxDataViewTextCtrlWrapper::AcceptChanges()
-{
-    const wxString value = m_text->GetValue();
+        UpdateDisplay();

 
 

-    if ( value == m_startValue )
-        // nothing changed, always accept

         return true;
         return true;

+    }

 
 

-//    if ( !m_owner->OnRenameAccept(m_itemEdited, value) )
-        // vetoed by the user
-//        return false;
-
-    // accepted, do rename the item
-    wxVariant variant;
-    variant = value;
-    m_model->SetValue( variant, m_col, m_row );
-    m_model->ValueChanged( m_col, m_row );
+    wxDataViewTreeNode * node = FindNode(parent);

 
 

-    return true;
-}
+    wxCHECK_MSG( node != NULL, false, "item not found" );
+    wxCHECK_MSG( node->GetChildren().Index( item.GetID() ) != wxNOT_FOUND, false, "item not found" );

 
 

-void wxDataViewTextCtrlWrapper::Finish()
-{
-    if ( !m_finished )
+    int sub = -1;
+    node->GetChildren().Remove( item.GetID() );
+    //Manuplate selection
+    if( m_selection.GetCount() > 1 )

     {
     {

-        m_finished = true;
-
-        m_text->RemoveEventHandler(this);
-        m_owner->FinishEditing(m_text);
-
-        // delete later
-        wxPendingDelete.Append( this );
+        m_selection.Empty();

     }
     }

-}
-
-//-----------------------------------------------------------------------------
-// wxDataViewMainWindow
-//-----------------------------------------------------------------------------
-
-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, name ),
-    m_selection( wxDataViewSelectionCmp )
-
-{
-    SetOwner( parent );
-
-    m_lastOnSame = false;
-    m_renameTimer = new wxDataViewRenameTimer( this );
-    m_textctrlWrapper = NULL;
-
-    // TODO: user better initial values/nothing selected
-    m_currentCol = NULL;
-    m_currentRow = 0;
-
-    // TODO: we need to calculate this smartly
-    m_lineHeight = 
-#ifdef __WXMSW__
-        17;
-#else
-        20;
-#endif
-    wxASSERT(m_lineHeight > 2*PADDING_TOPBOTTOM);
-
-    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;
-
-    SetBackgroundStyle( wxBG_STYLE_CUSTOM );
-    SetBackgroundColour( *wxWHITE );
-
-    m_penRule = wxPen(GetRuleColour(), 1, wxSOLID);
-
-    UpdateDisplay();
-}
-
-wxDataViewMainWindow::~wxDataViewMainWindow()
-{
-    delete m_renameTimer;
-}
-
-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++)
+    bool isContainer = false;
+    wxDataViewTreeNodes nds = node->GetNodes();
+    for (size_t i = 0; i < nds.GetCount(); i ++)

     {
     {

-        wxDataViewColumn *c = GetOwner()->GetColumn( i );
-        if (c->IsHidden())
-            continue;      // skip it!
-
-        if (c == m_currentCol)
+        if (nds[i]->GetItem() == item)
+        {
+            isContainer = true;

             break;
             break;

-        xpos += c->GetWidth();
+        }

     }
     }

-    wxRect labelRect( xpos, m_currentRow * m_lineHeight, 
-                      m_currentCol->GetWidth(), m_lineHeight );
+    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;
+            }
+        }

 
 

-    wxClassInfo *textControlClass = CLASSINFO(wxTextCtrl);
+        wxCHECK_MSG( n != NULL, false, "item not found" );

 
 

-    wxTextCtrl * const text = (wxTextCtrl *)textControlClass->CreateObject();
-    m_textctrlWrapper = new wxDataViewTextCtrlWrapper(this, text, GetOwner()->GetModel(),
-        m_currentCol->GetModelColumn(), m_currentRow, labelRect );
-}
+        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);

 
 

-void wxDataViewMainWindow::FinishEditing( wxTextCtrl *text )
-{
-    delete text;
-    m_textctrlWrapper = NULL;
-    SetFocus();
-  //  SetFocusIgnoringChildren();
-}
+    //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;

 
 

-bool wxDataViewMainWindow::RowAppended()
-{
-    return false;
-}
+    UpdateDisplay();

 
 

-bool wxDataViewMainWindow::RowPrepended()
-{
-    return false;
+    return true;

 }
 
 }
 

-bool wxDataViewMainWindow::RowInserted( unsigned int WXUNUSED(before) )
+bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)

 {
 {

-    return false;
-}
+    SortPrepare();
+    g_model->Resort();

 
 

-bool wxDataViewMainWindow::RowDeleted( unsigned int WXUNUSED(row) )
-{
-    return false;
-}
+    //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);

 
 

-bool wxDataViewMainWindow::RowChanged( unsigned int WXUNUSED(row) )
-{
-    return false;
+    return true;

 }
 
 }
 

-bool wxDataViewMainWindow::ValueChanged( unsigned int WXUNUSED(col), unsigned int row )
+bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int col )

 {
     // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
 {
     // NOTE: to be valid, we cannot use e.g. INT_MAX - 1

-#define MAX_VIRTUAL_WIDTH       100000
+/*#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;
 
     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();

 
 

-bool wxDataViewMainWindow::RowsReordered( unsigned int *WXUNUSED(new_order) )
-{
-    Refresh();
+    //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()
 {
 
     return true;
 }
 
 bool wxDataViewMainWindow::Cleared()
 {

-    return false;
+    DestroyTree();
+
+    SortPrepare();
+    BuildTree( GetOwner()->GetModel() );
+
+    UpdateDisplay();
+
+    return true;

 }
 
 void wxDataViewMainWindow::UpdateDisplay()
 }
 
 void wxDataViewMainWindow::UpdateDisplay()


@@ -1827,7 +1781,7 @@ void wxDataViewMainWindow::OnInternalIdle()
 
 void wxDataViewMainWindow::RecalculateDisplay()
 {
 
 void wxDataViewMainWindow::RecalculateDisplay()
 {

-    wxDataViewListModel *model = GetOwner()->GetModel();
+    wxDataViewModel *model = GetOwner()->GetModel();

     if (!model)
     {
         Refresh();
     if (!model)
     {
         Refresh();


@@ -1835,7 +1789,7 @@ void wxDataViewMainWindow::RecalculateDisplay()
     }
 
     int width = GetEndOfLastCol();
     }
 
     int width = GetEndOfLastCol();

-    int height = model->GetRowCount() * m_lineHeight;
+    int height = GetLineStart( GetRowCount() );

 
     SetVirtualSize( width, height );
     GetOwner()->SetScrollRate( 10, m_lineHeight );
 
     SetVirtualSize( width, height );
     GetOwner()->SetScrollRate( 10, m_lineHeight );


@@ -1851,457 +1805,1021 @@ void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
         GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
 }
 
         GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
 }
 

-void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
+void wxDataViewMainWindow::ScrollTo( int rows, int column )

 {
 {

-    wxDataViewListModel *model = GetOwner()->GetModel();
-    wxAutoBufferedPaintDC dc( this );
+    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!

 
 

-    // prepare the DC
-    dc.SetBackground(GetBackgroundColour());
-    dc.Clear();
-    GetOwner()->PrepareDC( dc );
-    dc.SetFont( GetFont() );
+            w = col->GetWidth();
+            x_start += w;
+        }

 
 

-    wxRect update = GetUpdateRegion().GetBox();
-    m_owner->CalcUnscrolledPosition( update.x, update.y, &update.x, &update.y );
+        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 );
+}

 
 

-    // compute which items needs to be redrawn
-    unsigned int item_start = wxMax( 0, (update.y / m_lineHeight) );
-    unsigned int item_count = 
-        wxMin( (int)(((update.y + update.height) / m_lineHeight) - item_start + 1),
-               (int)(model->GetRowCount() - item_start) );
-    unsigned int item_last = item_start + item_count;
+int wxDataViewMainWindow::GetCountPerPage() const
+{
+    wxSize size = GetClientSize();
+    return size.y / m_lineHeight;
+}

 
 

-    // compute which columns needs to be redrawn
-    unsigned int cols = GetOwner()->GetColumnCount();
-    unsigned int col_start = 0;
-    unsigned int x_start = 0;
-    for (x_start = 0; col_start < cols; col_start++)
+int wxDataViewMainWindow::GetEndOfLastCol() const
+{
+    int width = 0;
+    unsigned int i;
+    for (i = 0; i < GetOwner()->GetColumnCount(); i++)

     {
     {

-        wxDataViewColumn *col = GetOwner()->GetColumn(col_start);
-        if (col->IsHidden())
-            continue;      // skip it!
+        const wxDataViewColumn *c =
+            const_cast<wxDataViewCtrl*>(GetOwner())->GetColumnAt( i );

 
 

-        unsigned int w = col->GetWidth();
-        if (x_start+w >= (unsigned int)update.x)
-            break;
-
-        x_start += w;
+        if (!c->IsHidden())
+            width += c->GetWidth();

     }
     }

+    return width;
+}

 
 

-    unsigned int col_last = col_start;
-    unsigned int x_last = x_start;
-    for (; col_last < cols; col_last++)
-    {
-        wxDataViewColumn *col = GetOwner()->GetColumn(col_last);
-        if (col->IsHidden())
-            continue;      // skip it!
+unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
+{
+    int x = 0;
+    int y = 0;
+    m_owner->CalcUnscrolledPosition( x, y, &x, &y );

 
 

-        if (x_last > (unsigned int)update.GetRight())
-            break;
+    return GetLineAt( y );
+}

 
 

-        x_last += col->GetWidth();
+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;
+}

 
 

-    // Draw horizontal rules if required
-    if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
+void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
+{
+    m_currentRow = row;
+
+    // send event
+}
+
+void wxDataViewMainWindow::SelectAllRows( bool on )
+{
+    if (IsEmpty())
+        return;
+
+    if (on)

     {
     {

-        dc.SetPen(m_penRule);
-        dc.SetBrush(*wxTRANSPARENT_BRUSH);
+        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();
+    }
+}

 
 

-        for (unsigned int i = item_start; i <= item_last+1; i++)
+void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
+{
+    if (m_selection.Index( row ) == wxNOT_FOUND)
+    {
+        if (on)

         {
         {

-            int y = i * m_lineHeight;
-            dc.DrawLine(x_start, y, x_last, y);
+            m_selection.Add( row );
+            RefreshRow( row );
+        }
+    }
+    else
+    {
+        if (!on)
+        {
+            m_selection.Remove( row );
+            RefreshRow( row );

         }
     }
         }
     }

+}

 
 

-    // Draw vertical rules if required
-    if ( m_owner->HasFlag(wxDV_VERT_RULES) )
+void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
+{
+    if (from > to)

     {
     {

-        dc.SetPen(m_penRule);
-        dc.SetBrush(*wxTRANSPARENT_BRUSH);
+        unsigned int tmp = from;
+        from = to;
+        to = tmp;
+    }

 
 

-        int x = x_start;
-        for (unsigned int i = col_start; i < col_last; i++)
+    unsigned int i;
+    for (i = from; i <= to; i++)
+    {
+        if (m_selection.Index( i ) == wxNOT_FOUND)

         {
         {

-            wxDataViewColumn *col = GetOwner()->GetColumn(i);
-            if (col->IsHidden())
-                continue;       // skip it
+            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];

 
 

-            dc.DrawLine(x, item_start * m_lineHeight,
-                        x, item_last * m_lineHeight);
+        m_selection.Add( n );
+        RefreshRow( n );
+    }
+}

 
 

-            x += col->GetWidth();
+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;

         }
 
         }
 

-        // Draw last vertical rule
-        dc.DrawLine(x, item_start * m_lineHeight, 
-                    x, item_last * m_lineHeight);
+        SelectRows( oldCurrent, newCurrent, true );
+        if (oldCurrent!=newCurrent)
+            SendSelectionChangedEvent(GetItemByRow(m_selection[0]));

     }
     }

+    else // !shift
+    {
+        RefreshRow( oldCurrent );

 
 

-    // redraw the background for the items which are selected/current
-    for (unsigned int item = item_start; item < item_last; item++)
+        // 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)

     {
     {

-        bool selected = m_selection.Index( item ) != wxNOT_FOUND;
-        if (selected || item == m_currentRow)
+        // TODO make more efficient
+
+        int start = 0;
+
+        unsigned int r;
+        for (r = 0; r < row; r++)

         {
         {

-            int flags = selected ? wxCONTROL_SELECTED : 0;
-            if (item == m_currentRow)
-                flags |= wxCONTROL_CURRENT;
-            if (m_hasFocus)
-                flags |= wxCONTROL_FOCUSED;
+            const wxDataViewTreeNode* node = GetTreeNodeByRow(r);
+            if (!node) return start;

 
 

-            wxRect rect( x_start, item*m_lineHeight, x_last, m_lineHeight );
-            wxRendererNative::Get().DrawItemSelectionRect
-                                (
-                                    this,
-                                    dc,
-                                    rect,
-                                    flags
-                                );
+            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;
+    }
+}

 
 

-    // redraw all cells for all rows which must be repainted and for all columns
-    wxRect cell_rect;
-    cell_rect.x = x_start;
-    cell_rect.height = m_lineHeight;        // -1 is for the horizontal rules
-    for (unsigned int i = col_start; i < col_last; i++)
+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 (;;)

     {
     {

-        wxDataViewColumn *col = GetOwner()->GetColumn( i );
-        wxDataViewRenderer *cell = col->GetRenderer();
-        cell_rect.width = col->GetWidth();
+       const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
+       if (!node)
+       {
+           // not really correct...
+           return row + ((y-yy) / m_lineHeight);
+       }

 
 

-        if (col->IsHidden())
-            continue;       // skipt it!
+       wxDataViewItem item = node->GetItem();

 
 

-        for (unsigned int item = item_start; item < item_last; item++)
+        if (node && !node->HasChildren())

         {
         {

-            // get the cell value and set it into the renderer
+            // 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;
             wxVariant value;

-            model->GetValue( value, col->GetModelColumn(), item );
-            cell->SetValue( value );
+            model->GetValue( value, item, column->GetModelColumn() );
+            wxDataViewRenderer *renderer2 = const_cast<wxDataViewRenderer*>(renderer);
+            renderer2->SetValue( value );
+            height = wxMax( height, renderer->GetSize().y );
+       }

 
 

-            // update the y offset
-            cell_rect.y = item * m_lineHeight;
+       yy += height;
+       if (y < yy)
+           return row;

 
 

-            // cannot be bigger than allocated space
-            wxSize size = cell->GetSize();
-            size.x = wxMin( size.x + 2*PADDING_RIGHTLEFT, cell_rect.width );
-            size.y = wxMin( size.y + 2*PADDING_TOPBOTTOM, cell_rect.height );
+       row++;
+    }
+}

 
 

-            wxRect item_rect(cell_rect.GetTopLeft(), size);
-            int align = cell->GetAlignment();
+int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
+{
+    const wxDataViewModel *model = GetOwner()->GetModel();

 
 

-            // 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
+    if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
+    {
+        wxASSERT( !IsVirtualList() );

 
 

-            // 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
+        const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
+        // wxASSERT( node );
+        if (!node) return m_lineHeight;

 
 

-            // add padding
-            item_rect.x += PADDING_RIGHTLEFT;
-            item_rect.y += PADDING_TOPBOTTOM;
-            item_rect.width = size.x - 2 * PADDING_RIGHTLEFT;
-            item_rect.height = size.y - 2 * PADDING_TOPBOTTOM;
+        wxDataViewItem item = node->GetItem();

 
 

-            int state = 0;
-            if (m_selection.Index(item) != wxNOT_FOUND)
-                state |= wxDATAVIEW_CELL_SELECTED;
+        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);
+        }

 
 

-            // 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();
+        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;

         }
 
         }
 

-        cell_rect.x += cell_rect.width;
+        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;
+        }

     }
     }

-}

 
 

-int wxDataViewMainWindow::GetCountPerPage() const
+    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

 {
 {

-    wxSize size = GetClientSize();
-    return size.y / m_lineHeight;
+    if (!m_root)
+    {
+        return wxDataViewItem( wxUIntToPtr(row) );
+    }
+    else
+    {
+        RowToItemJob job( row, -2 );
+        Walker( m_root , job );
+        return job.GetResult();
+    }

 }
 
 }
 

-int wxDataViewMainWindow::GetEndOfLastCol() const
+class RowToTreeNodeJob: public DoJob

 {
 {

-    int width = 0;
-    unsigned int i;
-    for (i = 0; i < GetOwner()->GetColumnCount(); i++)
+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 )

     {
     {

-        const wxDataViewColumn *c = 
-            wx_const_cast(wxDataViewCtrl*, GetOwner())->GetColumn( i );
+        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;
+        }
+

 
 

-        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 );
+    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;
+};

 
 

-    return y / m_lineHeight;
-}

 
 

-unsigned int wxDataViewMainWindow::GetLastVisibleRow() const
+wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const

 {
 {

-    wxSize client_size = GetClientSize();
-    m_owner->CalcUnscrolledPosition( client_size.x, client_size.y, 
-                                     &client_size.x, &client_size.y );
+    wxASSERT( !IsVirtualList() );

 
 

-    return wxMin( GetRowCount()-1, ((unsigned)client_size.y/m_lineHeight)+1 );
+    RowToTreeNodeJob job( row , -2, m_root );
+    Walker( m_root , job );
+    return job.GetResult();

 }
 
 }
 

-unsigned int wxDataViewMainWindow::GetRowCount() const
+wxDataViewEvent wxDataViewMainWindow::SendExpanderEvent( wxEventType type, const wxDataViewItem & item )

 {
 {

-    return wx_const_cast(wxDataViewCtrl*, GetOwner())->GetModel()->GetRowCount();
-}
+    wxWindow *parent = GetParent();
+    wxDataViewEvent le(type, parent->GetId());

 
 

-void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
-{
-    m_currentRow = row;
+    le.SetEventObject(parent);
+    le.SetModel(GetOwner()->GetModel());
+    le.SetItem( item );

 
 

-    // send event
+    parent->GetEventHandler()->ProcessEvent(le);
+    return le;

 }
 
 }
 

-void wxDataViewMainWindow::SelectAllRows( bool on )
-{
-    if (IsEmpty())
-        return;

 
 

-    if (on)
+bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
+{
+    if (IsVirtualList())
+       return false;
+       
+    wxDataViewTreeNode * node = GetTreeNodeByRow(row);
+    if (!node)
+       return false;
+       
+    if (!node->HasChildren())

     {
     {

-        m_selection.Clear();
-        for (unsigned int i = 0; i < GetRowCount(); i++)
-            m_selection.Add( i );
-        Refresh();
+       delete node;
+       return false;

     }
     }

-    else
+    
+    return node->IsOpen();
+}
+
+
+void wxDataViewMainWindow::OnExpanding( unsigned int row )
+{
+    if (IsVirtualList())
+       return;
+
+    wxDataViewTreeNode * node = GetTreeNodeByRow(row);
+    if( node != NULL )

     {
     {

-        unsigned int first_visible = GetFirstVisibleRow();
-        unsigned int last_visible = GetLastVisibleRow();
-        unsigned int i;
-        for (i = 0; i < m_selection.GetCount(); i++)
+        if( node->HasChildren())

         {
         {

-            unsigned int row = m_selection[i];
-            if ((row >= first_visible) && (row <= last_visible))
-                RefreshRow( row );
+            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));
+            }

         }
         }

-        m_selection.Clear();
+        else
+            delete node;

     }
 }
 
     }
 }
 

-void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
+void wxDataViewMainWindow::OnCollapsing(unsigned int row)

 {
 {

-    if (m_selection.Index( row ) == wxNOT_FOUND)
+    if (IsVirtualList())
+       return;
+
+    wxDataViewTreeNode * node = GetTreeNodeByRow(row);
+    if( node != NULL )

     {
     {

-        if (on)
+        wxDataViewTreeNode * nd = node;
+
+        if( node->HasChildren() && node->IsOpen() )

         {
         {

-            m_selection.Add( row );
-            RefreshRow( row );
+            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
-    {
-        if (!on)
+        else

         {
         {

-            m_selection.Remove( row );
-            RefreshRow( row );
+            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;

     }
 }
 
     }
 }
 

-void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
+wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )

 {
 {

-    if (from > to)
+    wxDataViewModel * model = GetOwner()->GetModel();
+    if( model == NULL )
+        return NULL;
+        
+    if (!item.IsOk())
+        return m_root;
+
+    //Compose the a parent-chain of the finding item
+    ItemList list;
+    list.DeleteContents( true );
+    wxDataViewItem it( item );
+    while( it.IsOk() )

     {
     {

-        unsigned int tmp = from;
-        from = to;
-        to = tmp;
+        wxDataViewItem * pItem = new wxDataViewItem( it );
+        list.Insert( pItem );
+        it = model->GetParent( it );

     }
 
     }
 

-    unsigned int i;
-    for (i = from; i <= to; i++)
+    //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 (m_selection.Index( i ) == wxNOT_FOUND)
+        if( node->HasChildren() )

         {
         {

-            if (on)
-                m_selection.Add( i );
+            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
         }
         else

-        {
-            if (!on)
-                m_selection.Remove( i );
-        }
+            return NULL;

     }
     }

-    RefreshRows( from, to );
+    return NULL;

 }
 
 }
 

-void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
+void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column )

 {
 {

-    for (size_t i=0; i < aSelections.GetCount(); i++)
+    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++)

     {
     {

-        int n = aSelections[i];
+        col = GetOwner()->GetColumnAt(colnum);
+        if (col->IsHidden())
+            continue;      // skip it!

 
 

-        m_selection.Add( n );
-        RefreshRow( n );
+        unsigned int w = col->GetWidth();
+        if (x_start+w >= (unsigned int)x)
+            break;
+
+        x_start += w;

     }
     }

+
+    column = col;
+    item = GetItemByRow( GetLineAt( y ) );

 }
 
 }
 

-void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
+wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column )

 {
 {

-    if (m_selection.Index( row ) == wxNOT_FOUND)
-        m_selection.Add( row );
-    else
-        m_selection.Remove( row );
-    RefreshRow( row );
+    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);

 }
 
 }
 

-bool wxDataViewMainWindow::IsRowSelected( unsigned int row )
+int wxDataViewMainWindow::RecalculateCount()

 {
 {

-    return (m_selection.Index( row ) != wxNOT_FOUND);
+    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();
+    }

 }
 
 }
 

-void wxDataViewMainWindow::RefreshRow( unsigned int row )
+class ItemToRowJob : public DoJob

 {
 {

-    wxRect rect( 0, row*m_lineHeight, GetEndOfLastCol(), m_lineHeight );
-    m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
+public:
+    ItemToRowJob(const wxDataViewItem& item_, ItemList::const_iterator iter)
+        : m_iter(iter),
+          item(item_)
+    {
+        ret = -1;
+    }

 
 

-    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 );
-}
+    //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;
+         }

 
 

-void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
-{
-    if (from > to)
+    }
+
+    virtual int operator() ( void * n )

     {
     {

-        unsigned int tmp = to;
-        to = from;
-        from = tmp;
+        ret ++;
+        if( n == item.GetID() )
+            return DoJob::OK;
+        return DoJob::CONT;

     }
     }

+    //the row number is begin from zero
+    int GetResult() { return ret -1; }

 
 

-    wxRect rect( 0, from*m_lineHeight, GetEndOfLastCol(), (to-from+1) * m_lineHeight );
-    m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
+private:
+    ItemList::const_iterator  m_iter;
+    wxDataViewItem item;
+    int ret;

 
 

-    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 )
+int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const

 {
 {

-    unsigned int count = GetRowCount();
-    if (firstRow > count)
-        return;
+    const wxDataViewModel * model = GetOwner()->GetModel();
+    if( model == NULL )
+        return -1;

 
 

-    wxRect rect( 0, firstRow*m_lineHeight, GetEndOfLastCol(), count * m_lineHeight );
-    m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
+    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 );

 
 

-    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 );
+        ItemToRowJob job( item, list.begin() );
+        Walker(m_root , job );
+        return job.GetResult();
+    }

 }
 
 }
 

-void wxDataViewMainWindow::OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event)
+static void BuildTreeHelper( wxDataViewModel * model,  wxDataViewItem & item, wxDataViewTreeNode * node)

 {
 {

-    wxCHECK_RET( newCurrent < GetRowCount(),
-                 _T("invalid item index in OnArrowChar()") );
-
-    // if there is no selection, we cannot move it anywhere
-    if (!HasCurrentRow())
+    if( !model->IsContainer( item ) )

         return;
 
         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() )
+    wxDataViewItemArray children;
+    unsigned int num = model->GetChildren( item, children);
+    
+    unsigned int index = 0;
+    while( index < num )

     {
     {

-        RefreshRow( oldCurrent );
-
-        ChangeCurrentRow( newCurrent );
-
-        // select all the items between the old and the new one
-        if ( oldCurrent > newCurrent )
+        if( model->IsContainer( children[index] ) )

         {
         {

-            newCurrent = oldCurrent;
-            oldCurrent = m_currentRow;
+            wxDataViewTreeNode * n = new wxDataViewTreeNode( node );
+            n->SetItem(children[index]);
+            n->SetHasChildren( true );
+            node->AddNode( n );

         }
         }

-
-        SelectRows( oldCurrent, newCurrent, true );
+        else
+        {
+            node->AddLeaf( children[index].GetID() );
+        }
+        index ++;

     }
     }

-    else // !shift
-    {
-        RefreshRow( oldCurrent );
+    node->SetSubTreeCount( num );
+    wxDataViewTreeNode * n = node->GetParent();
+    if( n != NULL)
+        n->ChangeSubTreeCount(num);

 
 

-        // all previously selected items are unselected unless ctrl is held
-        if ( !event.ControlDown() )
-            SelectAllRows(false);
+}

 
 

-        ChangeCurrentRow( newCurrent );
+void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
+{
+    DestroyTree();

 
 

-        if ( !event.ControlDown() )
-            SelectRow( m_currentRow, true );
-        else
-            RefreshRow( m_currentRow );
+    if (GetOwner()->GetModel()->IsVirtualListModel())
+    {
+        m_count = -1;
+        return;

     }
 
     }
 

-    //EnsureVisible( m_currentRow );
+    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;

 }
 
 }
 

-wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
+static void DestroyTreeHelper( wxDataViewTreeNode * node )

 {
 {

-    wxRect rect;
-    rect.x = 0;
-    rect.y = m_lineHeight * row;
-    rect.width = GetEndOfLastCol();
-    rect.height = m_lineHeight;
-
-    return rect;
+    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::OnChar( wxKeyEvent &event )
+void wxDataViewMainWindow::DestroyTree()

 {
 {

-    if (event.GetKeyCode() == WXK_TAB)
+    if (!IsVirtualList())

     {
     {

-        wxNavigationKeyEvent nevent;
-        nevent.SetWindowChange( event.ControlDown() );
-        nevent.SetDirection( !event.ShiftDown() );
-        nevent.SetEventObject( GetParent()->GetParent() );
-        nevent.SetCurrentFocus( m_parent );
-        if (GetParent()->GetParent()->GetEventHandler()->ProcessEvent( nevent ))
-            return;
+       ::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())
 
     // no item -> nothing to do
     if (!HasCurrentRow())


@@ -2316,6 +2834,20 @@ void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
 
     switch ( event.GetKeyCode() )
     {
 
     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 );
         case WXK_UP:
             if ( m_currentRow > 0 )
                 OnArrowChar( m_currentRow - 1, event );


@@ -2325,7 +2857,13 @@ void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
             if ( m_currentRow < GetRowCount() - 1 )
                 OnArrowChar( m_currentRow + 1, event );
             break;
             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 );
         case WXK_END:
             if (!IsEmpty())
                 OnArrowChar( GetRowCount() - 1, event );


@@ -2376,7 +2914,6 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
     int x = event.GetX();
     int y = event.GetY();
     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
     int x = event.GetX();
     int y = event.GetY();
     m_owner->CalcUnscrolledPosition( x, y, &x, &y );

-

     wxDataViewColumn *col = NULL;
 
     int xpos = 0;
     wxDataViewColumn *col = NULL;
 
     int xpos = 0;


@@ -2384,7 +2921,7 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
     unsigned int i;
     for (i = 0; i < cols; i++)
     {
     unsigned int i;
     for (i = 0; i < cols; i++)
     {

-        wxDataViewColumn *c = GetOwner()->GetColumn( i );
+        wxDataViewColumn *c = GetOwner()->GetColumnAt( i );

         if (c->IsHidden())
             continue;      // skip it!
 
         if (c->IsHidden())
             continue;      // skip it!
 


@@ -2397,17 +2934,59 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
     }
     if (!col)
         return;
     }
     if (!col)
         return;

-    wxDataViewRenderer *cell = col->GetRenderer();

 
 

-    unsigned int current = y / m_lineHeight;
-
-    if ((current > GetRowCount()) || (x > GetEndOfLastCol()))
+    wxDataViewRenderer *cell = col->GetRenderer();
+    unsigned int current = GetLineAt( y );
+    if ((current >= GetRowCount()) || (x > GetEndOfLastCol()))

     {
         // Unselect all if below the last row ?
         return;
     }
 
     {
         // Unselect all if below the last row ?
         return;
     }
 

-    wxDataViewListModel *model = GetOwner()->GetModel();
+    //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 (event.Dragging())
     {


@@ -2426,7 +3005,31 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
 
         if (event.LeftIsDown())
         {
 
         if (event.LeftIsDown())
         {

+            m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y, &m_dragStart.x, &m_dragStart.y );
+            unsigned int drag_item_row = GetLineAt( m_dragStart.y );
+            wxDataViewItem item = GetItemByRow( drag_item_row );
+

             // Notify cell about drag
             // Notify cell about drag

+            wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_BEGIN_DRAG, m_owner->GetId() );
+            event.SetEventObject( m_owner );
+            event.SetItem( item );
+            event.SetModel( model );
+            if (!m_owner->HandleWindowEvent( event ))
+                return;
+        
+            if (!event.IsAllowed())
+                return;
+        
+            wxDataObject *obj = event.GetDataObject();
+            if (!obj)
+                return;
+        
+            wxDropSource drag( m_owner );
+            drag.SetData( *obj );
+            // wxImage image( 80, 20 );
+            // wxBitmap bitmap( image );
+            wxDragResult res = drag.DoDragDrop();
+            delete obj;

         }
         return;
     }
         }
         return;
     }


@@ -2443,18 +3046,35 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
         m_lastOnSame = false;
     }
 
         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 (event.LeftDClick())
     {
         if ( current == m_lineLastClicked )
         {

-            if (cell->GetMode() == wxDATAVIEW_CELL_ACTIVATABLE)
+            if ((!ignore_other_columns) && (cell->GetMode() == wxDATAVIEW_CELL_ACTIVATABLE))

             {
                 wxVariant value;
             {
                 wxVariant value;

-                model->GetValue( value, col->GetModelColumn(), current );
+                model->GetValue( value, item, col->GetModelColumn() );

                 cell->SetValue( value );
                 cell->SetValue( value );

-                wxRect cell_rect( xpos, current * m_lineHeight, 
-                                  col->GetWidth(), m_lineHeight );
-                cell->Activate( cell_rect, model, col->GetModelColumn(), current );
+                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;
         }
             }
             return;
         }


@@ -2473,12 +3093,40 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
             // select single line
             SelectAllRows( false );
             SelectRow( m_lineSelectSingleOnUp, true );
             // select single line
             SelectAllRows( false );
             SelectRow( m_lineSelectSingleOnUp, true );

+            SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );

         }
 
         }
 

-        if (m_lastOnSame)
+        //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) &&
         {
             if ((col == m_currentCol) && (current == m_currentRow) &&

-                (cell->GetMode() == wxDATAVIEW_CELL_EDITABLE) )
+                (cell->GetMode() & wxDATAVIEW_CELL_EDITABLE) )

             {
                 m_renameTimer->Start( 100, true );
             }
             {
                 m_renameTimer->Start( 100, true );
             }


@@ -2508,24 +3156,25 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
             SelectAllRows(false);
             ChangeCurrentRow(current);
             SelectRow(m_currentRow,true);
             SelectAllRows(false);
             ChangeCurrentRow(current);
             SelectRow(m_currentRow,true);

+            SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );

         }
 
         }
 

-        // notify cell about right click
-        // cell->...
-
-        // Allow generation of context menu event
-        event.Skip();
+        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())
     {
     }
     else if (event.MiddleDown())
     {

-        // notify cell about middle click
-        // cell->...

     }
     if (event.LeftDown() || forceClick)
     {
     }
     if (event.LeftDown() || forceClick)
     {

-#ifdef __WXMSW__

         SetFocus();
         SetFocus();

-#endif

 
         m_lineBeforeLastClicked = m_lineLastClicked;
         m_lineLastClicked = current;
 
         m_lineBeforeLastClicked = m_lineLastClicked;
         m_lineLastClicked = current;


@@ -2539,10 +3188,9 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
             if ( IsSingleSel() || !IsRowSelected(current) )
             {
                 SelectAllRows( false );
             if ( IsSingleSel() || !IsRowSelected(current) )
             {
                 SelectAllRows( false );

-

                 ChangeCurrentRow(current);
                 ChangeCurrentRow(current);

-

                 SelectRow(m_currentRow,true);
                 SelectRow(m_currentRow,true);

+                SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );

             }
             else // multi sel & current is highlighted & no mod keys
             {
             }
             else // multi sel & current is highlighted & no mod keys
             {


@@ -2555,8 +3203,8 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
             if (cmdModifierDown)
             {
                 ChangeCurrentRow(current);
             if (cmdModifierDown)
             {
                 ChangeCurrentRow(current);

-

                 ReverseRowSelection(m_currentRow);
                 ReverseRowSelection(m_currentRow);

+                SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );

             }
             else if (event.ShiftDown())
             {
             }
             else if (event.ShiftDown())
             {


@@ -2572,6 +3220,7 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
                 }
 
                 SelectRows(lineFrom, lineTo, true);
                 }
 
                 SelectRows(lineFrom, lineTo, true);

+                SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );

             }
             else // !ctrl, !shift
             {
             }
             else // !ctrl, !shift
             {


@@ -2588,8 +3237,20 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
         // Update selection here...
         m_currentCol = col;
 
         // Update selection here...
         m_currentCol = col;
 

-        m_lastOnSame = !forceClick && ((col == oldCurrentCol) && 
+        m_lastOnSame = !forceClick && ((col == oldCurrentCol) &&

                         (current == oldCurrentRow)) && oldWasSelected;
                         (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());
+        }

     }
 }
 
     }
 }
 


@@ -2613,9 +3274,18 @@ void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
     event.Skip();
 }
 
     event.Skip();
 }
 

+wxDataViewItem wxDataViewMainWindow::GetSelection() const
+{
+    if( m_selection.GetCount() != 1 )
+        return wxDataViewItem();
+
+    return GetItemByRow( m_selection.Item(0));
+}
+

 //-----------------------------------------------------------------------------
 // wxDataViewCtrl
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 // wxDataViewCtrl
 //-----------------------------------------------------------------------------

+WX_DEFINE_LIST(wxDataViewColumnList)

 
 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
 
 
 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
 


@@ -2627,25 +3297,38 @@ wxDataViewCtrl::~wxDataViewCtrl()
 {
     if (m_notifier)
         GetModel()->RemoveNotifier( m_notifier );
 {
     if (m_notifier)
         GetModel()->RemoveNotifier( m_notifier );

+
+    m_cols.Clear();

 }
 
 void wxDataViewCtrl::Init()
 {
 }
 
 void wxDataViewCtrl::Init()
 {

+    m_cols.DeleteContents(true);

     m_notifier = NULL;
     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 )
 {
 }
 
 bool wxDataViewCtrl::Create(wxWindow *parent, wxWindowID id,
            const wxPoint& pos, const wxSize& size,
            long style, const wxValidator& validator )
 {

-    if (!wxControl::Create( parent, id, pos, size, 
-                            style | wxScrolledWindowStyle|wxSUNKEN_BORDER, validator))
-        return false;
+    if ( (style & wxBORDER_MASK) == 0)
+        style |= wxBORDER_SUNKEN;

 
     Init();
 
 
     Init();
 

+    if (!wxControl::Create( parent, id, pos, size,
+                            style | wxScrolledWindowStyle, validator))
+        return false;
+
+    SetInitialSize(size);
+

 #ifdef __WXMAC__
 #ifdef __WXMAC__

-    MacSetClipChildren( true ) ;
+    MacSetClipChildren( true );

 #endif
 
     m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
 #endif
 
     m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );


@@ -2653,7 +3336,7 @@ bool wxDataViewCtrl::Create(wxWindow *parent, wxWindowID id,
     if (HasFlag(wxDV_NO_HEADER))
         m_headerArea = NULL;
     else
     if (HasFlag(wxDV_NO_HEADER))
         m_headerArea = NULL;
     else

-        m_headerArea = new wxDataViewHeaderWindow( this, wxID_ANY );
+        m_headerArea = new wxDataViewHeaderWindow(this);

 
     SetTargetWindow( m_clientArea );
 
 
     SetTargetWindow( m_clientArea );
 


@@ -2685,6 +3368,15 @@ WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
 }
 #endif
 
 }
 #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
 void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
 {
     // We need to override OnSize so that our scrolled


@@ -2699,79 +3391,413 @@ void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
     AdjustScrollbars();
 }
 
     AdjustScrollbars();
 }
 

-bool wxDataViewCtrl::AssociateModel( wxDataViewListModel *model )
+void wxDataViewCtrl::SetFocus()
+{
+    if (m_clientArea)
+        m_clientArea->SetFocus();
+}
+
+bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )

 {
     if (!wxDataViewCtrlBase::AssociateModel( model ))
         return false;
 
 {
     if (!wxDataViewCtrlBase::AssociateModel( model ))
         return false;
 

-    m_notifier = new wxGenericDataViewListModelNotifier( m_clientArea );
+    m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );

 
     model->AddNotifier( m_notifier );
 
 
     model->AddNotifier( m_notifier );
 

+    m_clientArea->DestroyTree();
+
+    m_clientArea->BuildTree(model);
+

     m_clientArea->UpdateDisplay();
 
     return true;
 }
 
     m_clientArea->UpdateDisplay();
 
     return true;
 }
 

+bool wxDataViewCtrl::EnableDragSource( const wxDataFormat &format )
+{
+    return m_clientArea->EnableDragSource( format );
+}
+
+bool wxDataViewCtrl::EnableDropTarget( const wxDataFormat &format )
+{
+    return m_clientArea->EnableDropTarget( format );
+}
+

 bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
 {
     if (!wxDataViewCtrlBase::AppendColumn(col))
         return false;
 
 bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
 {
     if (!wxDataViewCtrlBase::AppendColumn(col))
         return false;
 

-    OnColumnChange();
+    m_cols.Append( col );
+    OnColumnsCountChanged();
+    return true;
+}
+
+bool wxDataViewCtrl::PrependColumn( wxDataViewColumn *col )
+{
+    if (!wxDataViewCtrlBase::PrependColumn(col))
+        return false;
+
+    m_cols.Insert( col );
+    OnColumnsCountChanged();
+    return true;
+}
+
+bool wxDataViewCtrl::InsertColumn( unsigned int pos, wxDataViewColumn *col )
+{
+    if (!wxDataViewCtrlBase::InsertColumn(pos,col))
+        return false;
+
+    m_cols.Insert( pos, col );
+    OnColumnsCountChanged();

     return true;
 }
 
     return true;
 }
 

-void wxDataViewCtrl::OnColumnChange()
+void wxDataViewCtrl::OnColumnChange(unsigned int idx)
+{
+    if ( m_headerArea )
+        m_headerArea->UpdateColumn(idx);
+
+    m_clientArea->UpdateDisplay();
+}
+
+void wxDataViewCtrl::OnColumnsCountChanged()

 {
     if (m_headerArea)
 {
     if (m_headerArea)

-        m_headerArea->UpdateDisplay();
+        m_headerArea->SetColumnCount(GetColumnCount());
+
+    m_clientArea->UpdateDisplay();
+}
+
+void wxDataViewCtrl::DoSetExpanderColumn()
+{
+    m_clientArea->UpdateDisplay();
+}
+
+void wxDataViewCtrl::DoSetIndent()
+{
+    m_clientArea->UpdateDisplay();
+}
+
+unsigned int wxDataViewCtrl::GetColumnCount() const
+{
+    return m_cols.GetCount();
+}
+
+wxDataViewColumn* wxDataViewCtrl::GetColumn( unsigned int idx ) const
+{
+    return m_cols[idx];
+}
+
+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;
+
+    return GetColumn(idx);
+}
+
+int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
+{
+    const unsigned count = m_cols.size();
+    for ( unsigned n = 0; n < count; n++ )
+    {
+        if ( m_cols[n] == column )
+            return n;
+    }
+
+    return wxNOT_FOUND;
+}

 
 

+void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
+                                 unsigned int WXUNUSED(new_pos))
+{
+    // 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();
 }
 
     m_clientArea->UpdateDisplay();
 }
 

-void wxDataViewCtrl::SetSelection( int row )
+bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
+{
+    wxDataViewColumnList::compatibility_iterator ret = m_cols.Find( column );
+    if (!ret)
+        return false;
+
+    m_cols.Erase(ret);
+    OnColumnsCountChanged();
+
+    return true;
+}
+
+bool wxDataViewCtrl::ClearColumns()
+{
+    m_cols.Clear();
+    OnColumnsCountChanged();
+    return true;
+}
+
+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;
+}
+
+wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
+{
+    return m_sortingColumnIdx == wxNOT_FOUND ? NULL
+                                             : GetColumn(m_sortingColumnIdx);
+}
+
+//Selection code with wxDataViewItem as parameters
+wxDataViewItem wxDataViewCtrl::GetSelection() const
+{
+    return m_clientArea->GetSelection();
+}
+
+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;
+}
+
+void wxDataViewCtrl::SetSelections( const wxDataViewItemArray & sel )
+{
+    wxDataViewSelection selection(wxDataViewSelectionCmp);
+
+    wxDataViewItem last_parent;
+
+    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) );
+    }
+    
+    m_clientArea->SetSelections( selection );
+}
+
+void wxDataViewCtrl::Select( const wxDataViewItem & item )
+{
+    ExpandAncestors( item );
+    
+    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);
+    }
+}
+
+void wxDataViewCtrl::Unselect( const wxDataViewItem & item )

 {
 {

-    m_clientArea->SelectRow(row, true);
+    int row = m_clientArea->GetRowByItem( item );
+    if( row >= 0 )
+        m_clientArea->SelectRow(row, false);

 }
 
 }
 

-void wxDataViewCtrl::SetSelectionRange( unsigned int from, unsigned int to )
+bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const

 {
 {

-    m_clientArea->SelectRows(from, to, true);
+    int row = m_clientArea->GetRowByItem( item );
+    if( row >= 0 )
+    {
+        return m_clientArea->IsRowSelected(row);
+    }
+    return false;
+}
+
+//Selection code with row number as parameter
+int wxDataViewCtrl::GetSelections( wxArrayInt & 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( row );
+    }
+    return len;

 }
 
 }
 

-void wxDataViewCtrl::SetSelections( const wxArrayInt& aSelections )
+void wxDataViewCtrl::SetSelections( const wxArrayInt & sel )

 {
 {

-    m_clientArea->Select(aSelections);
+    wxDataViewSelection selection(wxDataViewSelectionCmp);
+    int len = sel.GetCount();
+    for( int i = 0; i < len; i ++ )
+    {
+        int row = sel[i];
+        if( row >= 0 )
+            selection.Add( static_cast<unsigned int>(row) );
+    }
+    m_clientArea->SetSelections( selection );

 }
 
 }
 

-void wxDataViewCtrl::Unselect( unsigned int WXUNUSED(row) )
+void wxDataViewCtrl::Select( int row )

 {
 {

-    // FIXME - TODO
+    if( row >= 0 )
+    {
+        if (m_clientArea->IsSingleSel())
+            m_clientArea->SelectAllRows(false);
+        m_clientArea->SelectRow( row, true );
+    }

 }
 
 }
 

-bool wxDataViewCtrl::IsSelected( unsigned int WXUNUSED(row) ) const
+void wxDataViewCtrl::Unselect( int row )

 {
 {

-    // FIXME - TODO
+    if( row >= 0 )
+        m_clientArea->SelectRow(row, false);
+}

 
 

+bool wxDataViewCtrl::IsSelected( int row ) const
+{
+    if( row >= 0 )
+        return m_clientArea->IsRowSelected(row);

     return false;
 }
 
     return false;
 }
 

-int wxDataViewCtrl::GetSelection() const
+void wxDataViewCtrl::SelectRange( int from, int to )

 {
 {

-    // FIXME - TODO
+    wxArrayInt sel;
+    for( int i = from; i < to; i ++ )
+        sel.Add( i );
+    m_clientArea->Select(sel);
+}

 
 

-    return -1;
+void wxDataViewCtrl::UnselectRange( int from, int to )
+{
+    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);

 }
 
 }
 

-int wxDataViewCtrl::GetSelections(wxArrayInt& WXUNUSED(aSelections) ) const
+void wxDataViewCtrl::SelectAll()

 {
 {

-    // FIXME - TODO
+    m_clientArea->SelectAllRows(true);
+}

 
 

-    return 0;
+void wxDataViewCtrl::UnselectAll()
+{
+    m_clientArea->SelectAllRows(false);

 }
 
 }
 

-#endif
+void wxDataViewCtrl::EnsureVisible( int row, int column )
+{
+    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 );
+}
+
+void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataViewColumn * column )
+{
+    ExpandAncestors( item );
+  
+    m_clientArea->RecalculateDisplay();
+
+    int row = m_clientArea->GetRowByItem(item);
+    if( row >= 0 )
+    {
+        if( column == NULL )
+            EnsureVisible(row, -1);
+        else
+            EnsureVisible( row, GetColumnIndex(column) );
+    }
+
+}
+
+void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column ) const
+{
+    m_clientArea->HitTest(point, item, column);
+}
+
+wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column ) const
+{
+    return m_clientArea->GetItemRect(item, column);
+}
+
+wxDataViewItem wxDataViewCtrl::GetItemByRow( unsigned int row ) const
+{
+    return m_clientArea->GetItemByRow( row );
+}
+
+int wxDataViewCtrl::GetRowByItem( const wxDataViewItem & item ) const
+{
+    return m_clientArea->GetRowByItem( item );
+}
+
+void wxDataViewCtrl::Expand( const wxDataViewItem & item )
+{
+    int row = m_clientArea->GetRowByItem( item );
+    if (row != -1)
+        m_clientArea->Expand(row);
+}
+
+void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
+{
+    int row = m_clientArea->GetRowByItem( item );
+    if (row != -1)
+        m_clientArea->Collapse(row);
+}
+
+bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
+{
+    int row = m_clientArea->GetRowByItem( item );
+    if (row != -1)
+        return m_clientArea->IsExpanded(row);
+    return false;
+}
+
+
+ #endif

     // !wxUSE_GENERICDATAVIEWCTRL
 
 #endif
     // !wxUSE_GENERICDATAVIEWCTRL
 
 #endif