X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/21ead7676a8625a1225d24e82fa7af4a96b8ba68..883ea3bf80503de1f2aa797ce91acda654d88d74:/src/generic/datavgen.cpp

diff --git a/src/generic/datavgen.cpp b/src/generic/datavgen.cpp
index f1bcc09c3c..0f5094e310 100644
--- a/src/generic/datavgen.cpp
+++ b/src/generic/datavgen.cpp
@@ -2,6 +2,7 @@
 // Name:        src/generic/datavgen.cpp
 // Purpose:     wxDataViewCtrl generic implementation
 // Author:      Robert Roebling
+// Modified by: Francesco Montorsi, Guru Kathiresan, Bo Yang
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling
 // Licence:     wxWindows licence
@@ -22,7 +23,9 @@
 
 #ifndef WX_PRECOMP
     #ifdef __WXMSW__
+        #include "wx/msw/private.h"
         #include "wx/msw/wrapwin.h"
+        #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
     #endif
     #include "wx/sizer.h"
     #include "wx/log.h"
@@ -30,6 +33,7 @@
     #include "wx/timer.h"
     #include "wx/settings.h"
     #include "wx/msgdlg.h"
+    #include "wx/dcscreen.h"
 #endif
 
 #include "wx/stockitem.h"
@@ -38,6 +42,8 @@
 #include "wx/renderer.h"
 #include "wx/dcbuffer.h"
 #include "wx/icon.h"
+#include "wx/list.h"
+#include "wx/listimpl.cpp"
 
 //-----------------------------------------------------------------------------
 // classes
@@ -45,36 +51,197 @@
 
 class wxDataViewCtrl;
 
+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 top/bottom
+static const int PADDING_TOPBOTTOM = 1;
+
+// the expander space margin
+static const int EXPANDER_MARGIN = 4;
+
 //-----------------------------------------------------------------------------
 // wxDataViewHeaderWindow
 //-----------------------------------------------------------------------------
 
-class wxDataViewHeaderWindow: public wxWindow
+#define USE_NATIVE_HEADER_WINDOW    0
+
+//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;
+
+// NB: for some reason, this class must be dllexport'ed or we get warnings from
+//     MSVC in DLL build
+class WXDLLIMPEXP_ADV wxDataViewHeaderWindowBase : public wxControl
 {
 public:
-    wxDataViewHeaderWindow( wxDataViewCtrl *parent,
-                            wxWindowID id,
-                            const wxPoint &pos = wxDefaultPosition,
-                            const wxSize &size = wxDefaultSize,
-                            const wxString &name = wxT("wxdataviewctrlheaderwindow") );
-    virtual ~wxDataViewHeaderWindow();
+    wxDataViewHeaderWindowBase()
+        { m_owner = NULL; }
+
+    bool Create(wxDataViewCtrl *parent, wxWindowID id,
+                const wxPoint &pos, const wxSize &size,
+                const wxString &name)
+    {
+        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 */ }
+
+    // returns the n-th column
+    virtual wxDataViewColumn *GetColumn(unsigned int n)
+    {
+        wxASSERT(m_owner);
+        wxDataViewColumn *ret = m_owner->GetColumn(n);
+        wxASSERT(ret);
+
+        return ret;
+    }
+
+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
+
+class wxDataViewHeaderWindowMSW : public wxDataViewHeaderWindowBase
+{
+public:
+
+    wxDataViewHeaderWindowMSW( wxDataViewCtrl *parent,
+                               wxWindowID id,
+                               const wxPoint &pos = wxDefaultPosition,
+                               const wxSize &size = wxDefaultSize,
+                               const wxString &name = wxT("wxdataviewctrlheaderwindow") )
+    {
+        Create(parent, id, pos, size, name);
+    }
+
+    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:
+    DECLARE_DYNAMIC_CLASS(wxDataViewHeaderWindowMSW)
+};
+
+#else       // !defined(__WXMSW__)
+
+#define HEADER_WINDOW_HEIGHT            25
+#define HEADER_HORIZ_BORDER             5
+#define HEADER_VERT_BORDER              3
+#define wxGenericDataViewHeaderWindow   wxDataViewHeaderWindow
+
+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);
+    }
+
+    bool Create(wxDataViewCtrl *parent, wxWindowID id,
+                const wxPoint &pos, const wxSize &size,
+                const wxString &name);
+
+    ~wxGenericDataViewHeaderWindow()
+    {
+        delete m_resizeCursor;
+    }
+
+    virtual void UpdateDisplay() { Refresh(); }
+
+    // event handlers:
+
     void OnPaint( wxPaintEvent &event );
     void OnMouse( wxMouseEvent &event );
     void OnSetFocus( wxFocusEvent &event );
 
-private:
-    wxDataViewCtrl      *m_owner;
+
+protected:
+
+    // vars used for column resizing:
+
     wxCursor            *m_resizeCursor;
+    const wxCursor      *m_currentCursor;
+    bool                 m_isDragging;
+
+    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
+
+    // the pen used to draw the current column width drag line
+    // when resizing the columsn
+    wxPen m_penCurrent;
+
+
+    // internal utilities:
+
+    void Init()
+    {
+        m_currentCursor = (wxCursor *) NULL;
+        m_resizeCursor = new wxCursor( wxCURSOR_SIZEWE );
+
+        m_isDragging = false;
+        m_dirty = false;
+
+        m_column = wxNOT_FOUND;
+        m_currentX = 0;
+        m_minX = 0;
+
+        wxColour col = wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
+        m_penCurrent = wxPen(col, 1, wxSOLID);
+    }
+
+    void DrawCurrent();
+    void AdjustDC(wxDC& dc);
 
 private:
-    DECLARE_DYNAMIC_CLASS(wxDataViewHeaderWindow)
+    DECLARE_DYNAMIC_CLASS(wxGenericDataViewHeaderWindow)
     DECLARE_EVENT_TABLE()
 };
 
+#endif      // defined(__WXMSW__)
+
 //-----------------------------------------------------------------------------
 // wxDataViewRenameTimer
 //-----------------------------------------------------------------------------
@@ -90,49 +257,153 @@ public:
 };
 
 //-----------------------------------------------------------------------------
-// wxDataViewTextCtrlWrapper: wraps a wxTextCtrl for inline editing
+// wxDataViewTreeNode
 //-----------------------------------------------------------------------------
+class wxDataViewTreeNode;
+WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
+WX_DEFINE_ARRAY( void* , wxDataViewTreeLeaves);
+
+int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1, wxDataViewTreeNode ** node2);
+int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2);
 
-class wxDataViewTextCtrlWrapper : public wxEvtHandler
+class wxDataViewTreeNode
 {
 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 )
+        { this->parent = parent;
+          if( parent == NULL )
+              open = true;
+       else
+        open = false;
+          hasChildren = false;
+          subTreeCount  = 0;
+    }
+    //I don't know what I need to do in the destructure
+    ~wxDataViewTreeNode()
+    {
 
-    wxTextCtrl *GetText() const { return m_text; }
+    }
 
-    void AcceptChangesAndFinish();
+    wxDataViewTreeNode * GetParent() { return parent; }
+    void SetParent( wxDataViewTreeNode * parent ) { this->parent = parent; }
+    wxDataViewTreeNodes &  GetNodes() { return nodes; }
+    wxDataViewTreeLeaves & GetChildren() { return leaves; }
 
-protected:
-    void OnChar( wxKeyEvent &event );
-    void OnKeyUp( wxKeyEvent &event );
-    void OnKillFocus( wxFocusEvent &event );
+    void AddNode( wxDataViewTreeNode * node )
+    {
+        leaves.Add( node->GetItem().GetID() );
+        if (g_column >= -1)
+            leaves.Sort( &wxGenericTreeModelItemCmp );
+        nodes.Add( node );
+        if (g_column >= -1)
+            nodes.Sort( &wxGenericTreeModelNodeCmp );
+    }
+    void AddLeaf( void * leaf )
+    {
+        leaves.Add( leaf );
+        if (g_column >= -1)
+            leaves.Sort( &wxGenericTreeModelItemCmp );
+    }
 
-    bool AcceptChanges();
-    void Finish();
+    wxDataViewItem & GetItem() { return item; }
+    void SetItem( const wxDataViewItem & item ) { this->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() { return leaves.GetCount(); }
+    unsigned int GetNodeNumber() { return nodes.GetCount(); }
+    int GetIndentLevel()
+    {
+        int ret = 0 ;
+     wxDataViewTreeNode * node = this;
+     while( node->GetParent()->GetParent() != NULL )
+     {
+         node = node->GetParent();
+         ret ++;
+     }
+     return ret;
+    }
 
-    DECLARE_EVENT_TABLE()
+    bool IsOpen()
+    {
+        return open ;
+    }
+
+    void ToggleOpen()
+    {
+        int len = nodes.GetCount();
+        int sum = 0;
+        for ( int i = 0 ;i < len ; i ++)
+            sum += nodes[i]->GetSubTreeCount();
+
+        sum += leaves.GetCount();
+        if( open )
+        {
+            ChangeSubTreeCount(-sum);
+            open = !open;
+        }
+        else
+        {
+            open = !open;
+            ChangeSubTreeCount(sum);
+        }
+    }
+    bool HasChildren() { return hasChildren; }
+    void SetHasChildren( bool has ){ hasChildren = has; }
+
+    void SetSubTreeCount( int num ) { subTreeCount = num; }
+    int GetSubTreeCount() { return subTreeCount; }
+    void ChangeSubTreeCount( int num )
+    {
+        if( !open )
+            return ;
+        subTreeCount += num;
+        if( parent )
+            parent->ChangeSubTreeCount(num);
+    }
+
+    void Resort()
+    {
+        if (g_column >= -1)
+        {
+            nodes.Sort( &wxGenericTreeModelNodeCmp );
+            int len = nodes.GetCount();
+            for (int i = 0; i < len; i ++)
+            {
+                nodes[i]->Resort();
+            }
+            leaves.Sort( &wxGenericTreeModelItemCmp );
+        }
+    }
+
+private:
+    wxDataViewTreeNode * parent;
+    wxDataViewTreeNodes  nodes;
+    wxDataViewTreeLeaves leaves;
+    wxDataViewItem  item;
+    bool open;
+    bool hasChildren;
+    int 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
 //-----------------------------------------------------------------------------
 
-WX_DEFINE_SORTED_USER_EXPORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection, WXDLLIMPEXP_ADV);
+WX_DEFINE_SORTED_USER_EXPORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection,
+                                            WXDLLIMPEXP_ADV);
+WX_DECLARE_LIST(wxDataViewItem, ItemList);
+WX_DEFINE_LIST(ItemList);
 
 class wxDataViewMainWindow: public wxWindow
 {
@@ -144,18 +415,40 @@ public:
                             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 );
+    // notifications from wxDataViewModel
+    bool ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item );
+    bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item );
+    bool ItemChanged( const wxDataViewItem &item );
+    bool ValueChanged( const wxDataViewItem &item, unsigned int col );
     bool Cleared();
+    void Resort()
+    {
+        SortPrepare();
+        m_root->Resort();
+        UpdateDisplay();
+    }
+
+    void SortPrepare()
+    {
+        g_model = GetOwner()->GetModel();
+        wxDataViewColumn* col = GetOwner()->GetSortingColumn();
+        if( !col )
+        {
+            if (g_model->HasDefaultCompare())
+                g_column = -1;
+            else
+                g_column = -2;
+
+            g_asending = true;
+            return;
+        }
+        g_column = col->GetModelColumn();
+        g_asending = col->IsSortOrderAscending();
+    }
 
     void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
     wxDataViewCtrl *GetOwner() { return m_owner; }
+    const wxDataViewCtrl *GetOwner() const { return m_owner; }
 
     void OnPaint( wxPaintEvent &event );
     void OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event);
@@ -169,43 +462,82 @@ public:
     void OnInternalIdle();
 
     void OnRenameTimer();
-    void FinishEditing( wxTextCtrl *text );
 
-    void ScrollWindow( int dx, int dy, const wxRect *rect );
+    void ScrollWindow( int dx, int dy, const wxRect *rect = NULL );
+    void ScrollTo( int rows, int column );
 
     bool HasCurrentRow() { return m_currentRow != (unsigned int)-1; }
     void ChangeCurrentRow( unsigned int row );
 
-    bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); };
+    bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); }
     bool IsEmpty() { return GetRowCount() == 0; }
 
-    int GetCountPerPage();
-    int GetEndOfLastCol();
-    unsigned int GetFirstVisibleRow();
+    int GetCountPerPage() const;
+    int GetEndOfLastCol() const;
+    unsigned int GetFirstVisibleRow() const;
+    //I change this method to un const because in the tree view, the displaying number of the tree are changing along with the expanding/collapsing of the tree nodes
     unsigned int GetLastVisibleRow();
-    unsigned int GetRowCount();
+    unsigned int GetRowCount() ;
 
+    wxDataViewItem GetSelection() const;
+    wxDataViewSelection GetSelections(){ return m_selection; }
+    void SetSelections( const wxDataViewSelection & sel ) { m_selection = sel; UpdateDisplay(); }
+    void Select( const wxArrayInt& aSelections );
     void SelectAllRows( bool on );
     void SelectRow( unsigned int row, bool on );
     void SelectRows( unsigned int from, unsigned int to, bool on );
     void ReverseRowSelection( unsigned int row );
     bool IsRowSelected( unsigned int row );
+    void SendSelectionChangedEvent( const wxDataViewItem& item);
 
     void RefreshRow( unsigned int row );
     void RefreshRows( unsigned int from, unsigned int to );
     void RefreshRowsAfter( unsigned int firstRow );
 
+    // returns the colour to be used for drawing the rules
+    wxColour GetRuleColour() const
+    {
+        return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
+    }
+
+    //void EnsureVisible( unsigned int row );
+    wxRect GetLineRect( unsigned int row ) const;
+
+    //Some useful functions for row and item mapping
+    wxDataViewItem GetItemByRow( unsigned int row ) const;
+    int GetRowByItem( const wxDataViewItem & item );
+
+    //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 ); }
+private:
+    wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row );
+    //We did not need this temporarily
+    //wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
+
+    int RecalculateCount() ;
+
+    wxDataViewEvent SendExpanderEvent( wxEventType type, const wxDataViewItem & item );
+    void OnExpanding( unsigned int row );
+    void OnCollapsing( unsigned int row );
+
+    wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
+
 private:
     wxDataViewCtrl             *m_owner;
     int                         m_lineHeight;
     bool                        m_dirty;
 
     wxDataViewColumn           *m_currentCol;
-    unsigned int                      m_currentRow;
+    unsigned int                m_currentRow;
     wxDataViewSelection         m_selection;
 
     wxDataViewRenameTimer      *m_renameTimer;
-    wxDataViewTextCtrlWrapper  *m_textctrlWrapper;
     bool                        m_lastOnSame;
 
     bool                        m_hasFocus;
@@ -218,37 +550,44 @@ private:
            m_lineBeforeLastClicked,
            m_lineSelectSingleOnUp;
 
+    // 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()
 };
 
 // ---------------------------------------------------------
-// wxGenericDataViewListModelNotifier
+// wxGenericDataViewModelNotifier
 // ---------------------------------------------------------
 
-class wxGenericDataViewListModelNotifier: public wxDataViewListModelNotifier
+class wxGenericDataViewModelNotifier: public wxDataViewModelNotifier
 {
 public:
-    wxGenericDataViewListModelNotifier( wxDataViewMainWindow *mainWindow )
+    wxGenericDataViewModelNotifier( wxDataViewMainWindow *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 void Resort()
+         { m_mainWindow->Resort(); }
 
     wxDataViewMainWindow    *m_mainWindow;
 };
@@ -259,10 +598,14 @@ public:
 
 IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
 
-wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype, wxDataViewCellMode mode ) :
-    wxDataViewRendererBase( varianttype, mode )
+wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,
+                                        wxDataViewCellMode mode,
+                                        int align) :
+    wxDataViewRendererBase( varianttype, mode, align )
 {
     m_dc = NULL;
+    m_align = align;
+    m_mode = mode;
 }
 
 wxDataViewRenderer::~wxDataViewRenderer()
@@ -292,8 +635,8 @@ wxDC *wxDataViewRenderer::GetDC()
 IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
 
 wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
-                          wxDataViewCellMode mode ) :
-    wxDataViewRenderer( varianttype, mode )
+                          wxDataViewCellMode mode, int align ) :
+    wxDataViewRenderer( varianttype, mode, align )
 {
 }
 
@@ -303,8 +646,9 @@ wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
 
 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewCustomRenderer)
 
-wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype, wxDataViewCellMode mode ) :
-    wxDataViewCustomRenderer( varianttype, mode )
+wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype,
+                                                wxDataViewCellMode mode, int align ) :
+    wxDataViewCustomRenderer( varianttype, mode, align )
 {
 }
 
@@ -315,20 +659,53 @@ bool wxDataViewTextRenderer::SetValue( const wxVariant &value )
     return true;
 }
 
-bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) )
+bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 {
     return false;
 }
 
-bool wxDataViewTextRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
+bool wxDataViewTextRenderer::HasEditorCtrl()
+{
+    return true;
+}
+
+wxControl* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
+        wxRect labelRect, const wxVariant &value )
+{
+    return new wxTextCtrl( parent, wxID_ANY, value,
+                           wxPoint(labelRect.x,labelRect.y),
+                           wxSize(labelRect.width,labelRect.height) );
+}
+
+bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxControl *editor, wxVariant &value )
+{
+    wxTextCtrl *text = (wxTextCtrl*) editor;
+    value = text->GetValue();
+    return true;
+}
+
+bool wxDataViewTextRenderer::Render( wxRect cell, wxDC *dc, int state )
 {
+    wxDataViewCtrl *view = GetOwner()->GetOwner();
+    wxColour col = (state & wxDATAVIEW_CELL_SELECTED) ?
+                        wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT) :
+                        view->GetForegroundColour();
+
+    dc->SetTextForeground(col);
     dc->DrawText( m_text, cell.x, cell.y );
 
     return true;
 }
 
-wxSize wxDataViewTextRenderer::GetSize()
+wxSize wxDataViewTextRenderer::GetSize() const
 {
+    const wxDataViewCtrl *view = GetView();
+    if (!m_text.empty())
+    {
+        int x,y;
+        view->GetTextExtent( m_text, &x, &y );
+        return wxSize( x, y );
+    }
     return wxSize(80,20);
 }
 
@@ -338,8 +715,9 @@ wxSize wxDataViewTextRenderer::GetSize()
 
 IMPLEMENT_CLASS(wxDataViewBitmapRenderer, wxDataViewCustomRenderer)
 
-wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype, wxDataViewCellMode mode ) :
-    wxDataViewCustomRenderer( varianttype, mode )
+wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype,
+                                                    wxDataViewCellMode mode, int align ) :
+    wxDataViewCustomRenderer( varianttype, mode, align )
 {
 }
 
@@ -353,7 +731,7 @@ bool wxDataViewBitmapRenderer::SetValue( const wxVariant &value )
     return true;
 }
 
-bool wxDataViewBitmapRenderer::GetValue( wxVariant& WXUNUSED(value) )
+bool wxDataViewBitmapRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 {
     return false;
 }
@@ -368,7 +746,7 @@ bool wxDataViewBitmapRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state
     return true;
 }
 
-wxSize wxDataViewBitmapRenderer::GetSize()
+wxSize wxDataViewBitmapRenderer::GetSize() const
 {
     if (m_bitmap.Ok())
         return wxSize( m_bitmap.GetWidth(), m_bitmap.GetHeight() );
@@ -385,8 +763,8 @@ wxSize wxDataViewBitmapRenderer::GetSize()
 IMPLEMENT_ABSTRACT_CLASS(wxDataViewToggleRenderer, wxDataViewCustomRenderer)
 
 wxDataViewToggleRenderer::wxDataViewToggleRenderer( const wxString &varianttype,
-                        wxDataViewCellMode mode ) :
-    wxDataViewCustomRenderer( varianttype, mode )
+                        wxDataViewCellMode mode, int align ) :
+    wxDataViewCustomRenderer( varianttype, mode, align )
 {
     m_toggle = false;
 }
@@ -398,7 +776,7 @@ bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
     return true;
 }
 
-bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) )
+bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) ) const
 {
     return false;
 }
@@ -428,16 +806,18 @@ bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state
     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;
-    model->SetValue( variant, col, row );
-    model->ValueChanged( col, row );
+    model->SetValue( variant, item, col);
+    model->ValueChanged( item, col );
     return true;
 }
 
-wxSize wxDataViewToggleRenderer::GetSize()
+wxSize wxDataViewToggleRenderer::GetSize() const
 {
     return wxSize(20,20);
 }
@@ -449,8 +829,8 @@ wxSize wxDataViewToggleRenderer::GetSize()
 IMPLEMENT_ABSTRACT_CLASS(wxDataViewProgressRenderer, wxDataViewCustomRenderer)
 
 wxDataViewProgressRenderer::wxDataViewProgressRenderer( const wxString &label,
-    const wxString &varianttype, wxDataViewCellMode mode ) :
-    wxDataViewCustomRenderer( varianttype, mode )
+    const wxString &varianttype, wxDataViewCellMode mode, int align ) :
+    wxDataViewCustomRenderer( varianttype, mode, align )
 {
     m_label = label;
     m_value = 0;
@@ -470,6 +850,12 @@ bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
     return true;
 }
 
+bool wxDataViewProgressRenderer::GetValue( wxVariant &value ) const
+{
+    value = (long) m_value;
+    return true;
+}
+
 bool wxDataViewProgressRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 {
     double pct = (double)m_value / 100.0;
@@ -486,7 +872,7 @@ bool wxDataViewProgressRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(sta
     return true;
 }
 
-wxSize wxDataViewProgressRenderer::GetSize()
+wxSize wxDataViewProgressRenderer::GetSize() const
 {
     return wxSize(40,12);
 }
@@ -503,12 +889,12 @@ class wxDataViewDateRendererPopupTransient: public wxPopupTransientWindow
 {
 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_row = row;
         m_cal = new wxCalendarCtrl( this, wxID_ANY, *value );
         wxBoxSizer *sizer = new wxBoxSizer( wxHORIZONTAL );
         sizer->Add( m_cal, 1, wxGROW );
@@ -519,9 +905,9 @@ public:
     void OnCalendar( wxCalendarEvent &event );
 
     wxCalendarCtrl      *m_cal;
-    wxDataViewListModel *m_model;
+    wxDataViewModel *m_model;
     unsigned int               m_col;
-    unsigned int               m_row;
+    const wxDataViewItem &   m_item;
 
 protected:
     virtual void OnDismiss()
@@ -540,8 +926,8 @@ void wxDataViewDateRendererPopupTransient::OnCalendar( wxCalendarEvent &event )
 {
     wxDateTime date = event.GetDate();
     wxVariant value = date;
-    m_model->SetValue( value, m_col, m_row );
-    m_model->ValueChanged( m_col, m_row );
+    m_model->SetValue( value, m_item, m_col );
+    m_model->ValueChanged( m_item, m_col );
     DismissAndNotify();
 }
 
@@ -550,8 +936,8 @@ void wxDataViewDateRendererPopupTransient::OnCalendar( wxCalendarEvent &event )
 IMPLEMENT_ABSTRACT_CLASS(wxDataViewDateRenderer, wxDataViewCustomRenderer)
 
 wxDataViewDateRenderer::wxDataViewDateRenderer( const wxString &varianttype,
-                        wxDataViewCellMode mode ) :
-    wxDataViewCustomRenderer( varianttype, mode )
+                        wxDataViewCellMode mode, int align ) :
+    wxDataViewCustomRenderer( varianttype, mode, align )
 {
 }
 
@@ -562,6 +948,12 @@ bool wxDataViewDateRenderer::SetValue( const wxVariant &value )
     return true;
 }
 
+bool wxDataViewDateRenderer::GetValue( wxVariant &value ) const
+{
+    value = m_date;
+    return true;
+}
+
 bool wxDataViewDateRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 {
     dc->SetFont( GetOwner()->GetOwner()->GetFont() );
@@ -571,24 +963,25 @@ bool wxDataViewDateRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state)
     return true;
 }
 
-wxSize wxDataViewDateRenderer::GetSize()
+wxSize wxDataViewDateRenderer::GetSize() const
 {
-    wxDataViewCtrl* view = GetOwner()->GetOwner();
+    const wxDataViewCtrl* view = GetView();
     wxString tmp = m_date.FormatDate();
     wxCoord x,y,d;
     view->GetTextExtent( tmp, &x, &y, &d );
     return wxSize(x,y+d);
 }
 
-bool wxDataViewDateRenderer::Activate( wxRect WXUNUSED(cell), wxDataViewListModel *model, unsigned int col, unsigned int row )
+bool wxDataViewDateRenderer::Activate( wxRect WXUNUSED(cell), wxDataViewModel *model,
+                                       const wxDataViewItem & item, unsigned int col )
 {
     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(
-        GetOwner()->GetOwner()->GetParent(), &value, model, col, row );
+        GetOwner()->GetOwner()->GetParent(), &value, model, item, col);
     wxPoint pos = wxGetMousePosition();
     popup->Move( pos );
     popup->Layout();
@@ -600,329 +993,853 @@ 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, int flags ) :
-    wxDataViewColumnBase( title, cell, model_column, width, flags )
+wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
+  const wxString &varianttype, wxDataViewCellMode mode, int align ) :
+    wxDataViewCustomRenderer( varianttype, mode, align )
 {
-    m_width = width;
-    if (m_width < 0)
-        m_width = 80;
+    SetMode(mode);
+    SetAlignment(align);
 }
 
-wxDataViewColumn::wxDataViewColumn( const wxBitmap &bitmap, wxDataViewRenderer *cell, unsigned int model_column,
-        int width, int flags ) :
-    wxDataViewColumnBase( bitmap, cell, model_column, width, flags )
+wxDataViewIconTextRenderer::~wxDataViewIconTextRenderer()
 {
-    m_width = width;
-    if (m_width < 0)
-        m_width = 30;
 }
 
-void wxDataViewColumn::SetAlignment( wxAlignment WXUNUSED(align) )
+bool wxDataViewIconTextRenderer::SetValue( const wxVariant &value )
 {
-    // TODO
+    m_value << value;
+    return true;
 }
 
-void wxDataViewColumn::SetSortable( bool WXUNUSED(sortable) )
+bool wxDataViewIconTextRenderer::GetValue( wxVariant &value ) const
 {
-    // TODO
+    return false;
 }
 
-bool wxDataViewColumn::GetSortable()
+bool wxDataViewIconTextRenderer::Render( wxRect cell, wxDC *dc, int state )
 {
-    // TODO
-    return false;
+    dc->SetFont( GetOwner()->GetOwner()->GetFont() );
+
+    const wxIcon &icon = m_value.GetIcon();
+    if (icon.IsOk())
+    {
+        dc->DrawIcon( icon, cell.x, cell.y ); // TODO centre
+        cell.x += icon.GetWidth()+4;
+    }
+
+    dc->DrawText( m_value.GetText(), cell.x, cell.y );
+
+    return true;
 }
 
-void wxDataViewColumn::SetSortOrder( bool WXUNUSED(ascending) )
+wxSize wxDataViewIconTextRenderer::GetSize() const
 {
-    // TODO
+    return wxSize(80,16);  // TODO
 }
 
-bool wxDataViewColumn::IsSortOrderAscending()
+wxControl* wxDataViewIconTextRenderer::CreateEditorCtrl( wxWindow *parent, wxRect labelRect, const wxVariant &value )
 {
-    // TODO
-    return true;
+    return NULL;
 }
 
-
-wxDataViewColumn::~wxDataViewColumn()
+bool wxDataViewIconTextRenderer::GetValueFromEditorCtrl( wxControl* editor, wxVariant &value )
 {
+    return false;
 }
 
-void wxDataViewColumn::SetTitle( const wxString &title )
+// ---------------------------------------------------------
+// wxDataViewColumn
+// ---------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxDataViewColumn, wxDataViewColumnBase)
+
+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 )
 {
-    wxDataViewColumnBase::SetTitle( title );
+    SetAlignment(align);
+    SetTitle(title);
+    SetFlags(flags);
 
+    Init(width < 0 ? wxDVC_DEFAULT_WIDTH : width);
 }
 
-void wxDataViewColumn::SetBitmap( const wxBitmap &bitmap )
+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 )
 {
-    wxDataViewColumnBase::SetBitmap( bitmap );
+    SetAlignment(align);
+    SetFlags(flags);
 
+    Init(width < 0 ? wxDVC_TOGGLE_DEFAULT_WIDTH : width);
 }
 
-int wxDataViewColumn::GetWidth()
+wxDataViewColumn::~wxDataViewColumn()
 {
-    return m_width;
 }
 
-//-----------------------------------------------------------------------------
-// wxDataViewHeaderWindow
-//-----------------------------------------------------------------------------
+void wxDataViewColumn::Init( int width )
+{
+    m_width = width;
+    m_minWidth = wxDVC_DEFAULT_MINWIDTH;
+    m_ascending = true;
+}
 
-IMPLEMENT_ABSTRACT_CLASS(wxDataViewHeaderWindow, wxWindow)
+void wxDataViewColumn::SetResizeable( bool resizeable )
+{
+    if (resizeable)
+        m_flags |= wxDATAVIEW_COL_RESIZABLE;
+    else
+        m_flags &= ~wxDATAVIEW_COL_RESIZABLE;
+}
 
-BEGIN_EVENT_TABLE(wxDataViewHeaderWindow,wxWindow)
-    EVT_PAINT         (wxDataViewHeaderWindow::OnPaint)
-    EVT_MOUSE_EVENTS  (wxDataViewHeaderWindow::OnMouse)
-    EVT_SET_FOCUS     (wxDataViewHeaderWindow::OnSetFocus)
-END_EVENT_TABLE()
+void wxDataViewColumn::SetHidden( bool hidden )
+{
+    if (hidden)
+        m_flags |= wxDATAVIEW_COL_HIDDEN;
+    else
+        m_flags &= ~wxDATAVIEW_COL_HIDDEN;
 
-wxDataViewHeaderWindow::wxDataViewHeaderWindow( wxDataViewCtrl *parent, wxWindowID id,
-     const wxPoint &pos, const wxSize &size, const wxString &name ) :
-    wxWindow( parent, id, pos, size, 0, name )
+    // tell our owner to e.g. update its scrollbars:
+    if (GetOwner())
+        GetOwner()->OnColumnChange();
+}
+
+void wxDataViewColumn::SetSortable( bool sortable )
 {
-    SetOwner( parent );
+    if (sortable)
+        m_flags |= wxDATAVIEW_COL_SORTABLE;
+    else
+        m_flags &= ~wxDATAVIEW_COL_SORTABLE;
 
-    m_resizeCursor = new wxCursor( wxCURSOR_SIZEWE );
+    // Update header button
+    if (GetOwner())
+        GetOwner()->OnColumnChange();
+}
 
-    wxVisualAttributes attr = wxPanel::GetClassDefaultAttributes();
-    SetBackgroundStyle( wxBG_STYLE_CUSTOM );
-    SetOwnForegroundColour( attr.colFg );
-    SetOwnBackgroundColour( attr.colBg );
-    if (!m_hasFont)
-        SetOwnFont( attr.font );
+void wxDataViewColumn::SetSortOrder( bool ascending )
+{
+    m_ascending = ascending;
+
+    // Update header button
+    if (GetOwner())
+        GetOwner()->OnColumnChange();
 }
 
-wxDataViewHeaderWindow::~wxDataViewHeaderWindow()
+bool wxDataViewColumn::IsSortOrderAscending() const
 {
-    delete m_resizeCursor;
+    return m_ascending;
 }
 
-void wxDataViewHeaderWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
+void wxDataViewColumn::SetInternalWidth( int width )
 {
-    int w, h;
-    GetClientSize( &w, &h );
+    m_width = width;
 
-    wxAutoBufferedPaintDC dc( this );
+    // the scrollbars of the wxDataViewCtrl needs to be recalculated!
+    if (m_owner && m_owner->m_clientArea)
+        m_owner->m_clientArea->RecalculateDisplay();
+}
 
-    dc.SetBackground(GetBackgroundColour());
-    dc.Clear();
+void wxDataViewColumn::SetWidth( int width )
+{
+    m_owner->m_headerArea->UpdateDisplay();
 
-    int xpix;
-    m_owner->GetScrollPixelsPerUnit( &xpix, NULL );
+    SetInternalWidth(width);
+}
 
-    int x;
-    m_owner->GetViewStart( &x, NULL );
 
-    // account for the horz scrollbar offset
-    dc.SetDeviceOrigin( -x * xpix, 0 );
+//-----------------------------------------------------------------------------
+// wxDataViewHeaderWindowBase
+//-----------------------------------------------------------------------------
 
-    dc.SetFont( GetFont() );
+void wxDataViewHeaderWindowBase::SendEvent(wxEventType type, unsigned int n)
+{
+    wxWindow *parent = GetParent();
+    wxDataViewEvent le(type, parent->GetId());
 
-    unsigned int cols = GetOwner()->GetNumberOfColumns();
-    unsigned int i;
-    int xpos = 0;
-    for (i = 0; i < cols; i++)
-    {
-        wxDataViewColumn *col = GetOwner()->GetColumn( i );
-        int width = col->GetWidth();
+    le.SetEventObject(parent);
+    le.SetColumn(n);
+    le.SetDataViewColumn(GetColumn(n));
+    le.SetModel(GetOwner()->GetModel());
 
-        int cw = width;
-        int ch = h;
+    // for events created by wxDataViewHeaderWindow the
+    // row / value fields are not valid
 
-        wxRendererNative::Get().DrawHeaderButton
-                                (
-                                    this,
-                                    dc,
-                                    wxRect(xpos, 0, cw, ch-1),
-                                    m_parent->IsEnabled() ? 0
-                                                          : (int)wxCONTROL_DISABLED
-                                );
+    parent->GetEventHandler()->ProcessEvent(le);
+}
 
-        dc.DrawText( col->GetTitle(), xpos+3, 3 );
+#if defined(__WXMSW__) && USE_NATIVE_HEADER_WINDOW
 
-        xpos += width;
-    }
-}
+// implemented in msw/listctrl.cpp:
+int WXDLLIMPEXP_CORE wxMSWGetColumnClicked(NMHDR *nmhdr, POINT *ptClick);
 
-void wxDataViewHeaderWindow::OnMouse( wxMouseEvent &WXUNUSED(event) )
-{
-}
+IMPLEMENT_ABSTRACT_CLASS(wxDataViewHeaderWindowMSW, wxWindow)
 
-void wxDataViewHeaderWindow::OnSetFocus( wxFocusEvent &event )
+bool wxDataViewHeaderWindowMSW::Create( wxDataViewCtrl *parent, wxWindowID id,
+                                        const wxPoint &pos, const wxSize &size,
+                                        const wxString &name )
 {
-    GetParent()->SetFocus();
-    event.Skip();
-}
+    m_owner = parent;
 
-//-----------------------------------------------------------------------------
-// wxDataViewRenameTimer
-//-----------------------------------------------------------------------------
+    if ( !CreateControl(parent, id, pos, size, 0, wxDefaultValidator, name) )
+        return false;
 
-wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
-{
-    m_owner = owner;
+    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;
+    }
+
+    // we need to subclass the m_hWnd to force wxWindow::HandleNotify
+    // to call wxDataViewHeaderWindow::MSWOnNotify
+    SubclassWin(m_hWnd);
+
+    // 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());
+
+    RECT rcParent;
+    HDLAYOUT hdl;
+    WINDOWPOS wp;
+
+    // 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));
+
+    return true;
 }
 
-void wxDataViewRenameTimer::Notify()
+wxDataViewHeaderWindowMSW::~wxDataViewHeaderWindow()
 {
-    m_owner->OnRenameTimer();
+    UnsubclassWin();
 }
 
-//-----------------------------------------------------------------------------
-// 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 )
+void wxDataViewHeaderWindowMSW::UpdateDisplay()
 {
-    m_owner = owner;
-    m_model = model;
-    m_row = row;
-    m_col = col;
-    m_text = text;
+    // remove old columns
+    for (int j=0, max=Header_GetItemCount((HWND)m_hWnd); j < max; j++)
+        Header_DeleteItem((HWND)m_hWnd, 0);
 
-    m_finished = false;
-    m_aboutToFinish = false;
+    // add the updated array of columns to the header control
+    unsigned int cols = GetOwner()->GetColumnCount();
+    unsigned int added = 0;
+    wxDataViewModel * model = GetOwner()->GetModel();
+    for (unsigned int i = 0; i < cols; i++)
+    {
+        wxDataViewColumn *col = GetColumn( i );
+        if (col->IsHidden())
+            continue;      // don't add it!
+
+        HDITEM hdi;
+        hdi.mask = HDI_TEXT | HDI_FORMAT | HDI_WIDTH;
+        hdi.pszText = (wxChar *) col->GetTitle().wx_str();
+        hdi.cxy = col->GetWidth();
+        hdi.cchTextMax = sizeof(hdi.pszText)/sizeof(hdi.pszText[0]);
+        hdi.fmt = HDF_LEFT | HDF_STRING;
+        //hdi.fmt &= ~(HDF_SORTDOWN|HDF_SORTUP);
+
+        //sorting support
+        if(model && m_owner->GetSortingColumn() == col)
+        {
+            //The Microsoft Comctrl32.dll 6.0 support SORTUP/SORTDOWN, but they are not default
+            //see http://msdn2.microsoft.com/en-us/library/ms649534.aspx for more detail
+            //hdi.fmt |= model->GetSortOrderAscending()? HDF_SORTUP:HDF_SORTDOWN;
+            ;
+        }
 
-    wxVariant value;
-    model->GetValue( value, col, row );
-    m_startValue = value.GetString();
+        // 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;
 
-    m_owner->GetOwner()->CalcScrolledPosition(
-        rectLabel.x, rectLabel.y, &rectLabel.x, &rectLabel.y );
+        // 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;
 
-    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();
+        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;
+            break;
 
-    m_text->PushEventHandler(this);
+        default:
+            // such alignment is not allowed for the column header!
+            wxFAIL;
+        }
+
+        SendMessage((HWND)m_hWnd, HDM_INSERTITEM,
+                    (WPARAM)added, (LPARAM)&hdi);
+        added++;
+    }
 }
 
-void wxDataViewTextCtrlWrapper::AcceptChangesAndFinish()
+unsigned int wxDataViewHeaderWindowMSW::GetColumnIdxFromHeader(NMHEADER *nmHDR)
 {
-    m_aboutToFinish = true;
+    unsigned int idx;
+
+    // NOTE: we don't just return nmHDR->iItem because when there are
+    //       hidden columns, nmHDR->iItem may be different from
+    //       nmHDR->pitem->lParam
+
+    if (nmHDR->pitem && nmHDR->pitem->mask & HDI_LPARAM)
+    {
+        idx = (unsigned int)nmHDR->pitem->lParam;
+        return idx;
+    }
 
-    // Notify the owner about the changes
-    AcceptChanges();
+    HDITEM item;
+    item.mask = HDI_LPARAM;
+    Header_GetItem((HWND)m_hWnd, nmHDR->iItem, &item);
 
-    // Even if vetoed, close the control (consistent with MSW)
-    Finish();
+    return (unsigned int)item.lParam;
 }
 
-void wxDataViewTextCtrlWrapper::OnChar( wxKeyEvent &event )
+bool wxDataViewHeaderWindowMSW::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 {
-    switch ( event.m_keyCode )
+    NMHDR *nmhdr = (NMHDR *)lParam;
+
+    // is it a message from the header?
+    if ( nmhdr->hwndFrom != (HWND)m_hWnd )
+        return wxWindow::MSWOnNotify(idCtrl, lParam, result);
+
+    NMHEADER *nmHDR = (NMHEADER *)nmhdr;
+    switch ( nmhdr->code )
     {
-        case WXK_RETURN:
-            AcceptChangesAndFinish();
+        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;
 
-        case WXK_ESCAPE:
-            // m_owner->OnRenameCancelled( m_itemEdited );
-            Finish();
+        case HDN_BEGINDRAG:
+            // user has started to reorder a column
+            break;
+
+        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;
+
+        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
+
+            // update the width of the modified column:
+            if (nmHDR->pitem != NULL &&
+                (nmHDR->pitem->mask & HDI_WIDTH) != 0)
+            {
+                unsigned int idx = GetColumnIdxFromHeader(nmHDR);
+                unsigned int w = nmHDR->pitem->cxy;
+                wxDataViewColumn *col = GetColumn(idx);
+
+                // see UpdateDisplay() for more info about COLUMN_WIDTH_OFFSET
+                if (idx == 0 && w > COLUMN_WIDTH_OFFSET)
+                    w -= COLUMN_WIDTH_OFFSET;
+
+                if (w >= (unsigned)col->GetMinWidth())
+                    col->SetInternalWidth(w);
+            }
+            break;
+
+        case HDN_ITEMCLICK:
+            {
+                unsigned int idx = GetColumnIdxFromHeader(nmHDR);
+                wxDataViewModel * model = GetOwner()->GetModel();
+
+                if(nmHDR->iButton == 0)
+                {
+                    wxDataViewColumn *col = GetColumn(idx);
+                    if(col->IsSortable())
+                    {
+                        if(model && m_owner->GetSortingColumn() == col)
+                        {
+                            bool order = col->IsSortOrderAscending();
+                            col->SetSortOrder(!order);
+                        }
+                        else if(model)
+                        {
+                            m_owner->SetSortingColumn(col);
+                        }
+                    }
+                    UpdateDisplay();
+                    if(model)
+                        model->Resort();
+                }
+
+                wxEventType evt = nmHDR->iButton == 0 ?
+                        wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK :
+                        wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK;
+                SendEvent(evt, idx);
+            }
+            break;
+
+        case NM_RCLICK:
+            {
+                // 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
+
+                POINT ptClick;
+                int column = wxMSWGetColumnClicked(nmhdr, &ptClick);
+                if (column != wxNOT_FOUND)
+                {
+                    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);
+                }
+            }
+            break;
+
+        case HDN_GETDISPINFOW:
+            // see wxListCtrl::MSWOnNotify for more info!
+            break;
+
+        case HDN_ITEMDBLCLICK:
+            {
+                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);
+            }
             break;
 
         default:
-            event.Skip();
+            return wxWindow::MSWOnNotify(idCtrl, lParam, result);
     }
+
+    return true;
 }
 
-void wxDataViewTextCtrlWrapper::OnKeyUp( wxKeyEvent &event )
+void wxDataViewHeaderWindowMSW::ScrollWindow(int WXUNUSED(dx), int WXUNUSED(dy),
+                                             const wxRect *WXUNUSED(rect))
 {
-    if (m_finished)
-    {
-        event.Skip();
-        return;
-    }
+    wxSize ourSz = GetClientSize();
+    wxSize ownerSz = m_owner->GetClientSize();
 
-    // 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);
+    // where should the (logical) origin of this window be placed?
+    int x1 = 0, y1 = 0;
+    m_owner->CalcUnscrolledPosition(0, 0, &x1, &y1);
 
-    event.Skip();
+    // 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 wxDataViewTextCtrlWrapper::OnKillFocus( wxFocusEvent &event )
+void wxDataViewHeaderWindowMSW::DoSetSize(int WXUNUSED(x), int WXUNUSED(y),
+                                          int WXUNUSED(w), int WXUNUSED(h),
+                                          int WXUNUSED(f))
 {
-    if ( !m_finished && !m_aboutToFinish )
+    // 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:
+
+    ScrollWindow(0, 0);
+}
+
+#else       // !defined(__WXMSW__)
+
+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()
+
+bool wxGenericDataViewHeaderWindow::Create(wxDataViewCtrl *parent, wxWindowID id,
+                                           const wxPoint &pos, const wxSize &size,
+                                           const wxString &name )
+{
+    m_owner = parent;
+
+    if (!wxDataViewHeaderWindowBase::Create(parent, id, pos, size, name))
+        return false;
+
+    wxVisualAttributes attr = wxPanel::GetClassDefaultAttributes();
+    SetBackgroundStyle( wxBG_STYLE_CUSTOM );
+    SetOwnForegroundColour( attr.colFg );
+    SetOwnBackgroundColour( attr.colBg );
+    if (!m_hasFont)
+        SetOwnFont( attr.font );
+
+    // 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));
+
+    return true;
+}
+
+void wxGenericDataViewHeaderWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
+{
+    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() );
+
+    unsigned int cols = GetOwner()->GetColumnCount();
+    unsigned int i;
+    int xpos = 0;
+    for (i = 0; i < cols; i++)
     {
-        AcceptChanges();
-        //if ( !AcceptChanges() )
-        //    m_owner->OnRenameCancelled( m_itemEdited );
+        wxDataViewColumn *col = GetColumn( i );
+        if (col->IsHidden())
+            continue;      // skip it!
+
+        int cw = col->GetWidth();
+        int ch = h;
+
+        wxHeaderSortIconType sortArrow = wxHDR_SORT_ICON_NONE;
+        if (col->IsSortable() && GetOwner()->GetSortingColumn() == col)
+        {
+            if (col->IsSortOrderAscending())
+                sortArrow = wxHDR_SORT_ICON_UP;
+            else
+                sortArrow = wxHDR_SORT_ICON_DOWN;
+        }
+
+        wxRendererNative::Get().DrawHeaderButton
+                                (
+                                    this,
+                                    dc,
+                                    wxRect(xpos, 0, cw, ch-1),
+                                    m_parent->IsEnabled() ? 0
+                                                          : (int)wxCONTROL_DISABLED,
+                                    sortArrow
+                                );
+
+        // 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;
+            break;
+        }
 
-        Finish();
+        // always center the title vertically:
+        int y = wxMax((ch - titleSz.GetHeight()) / 2, HEADER_VERT_BORDER);
+
+        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();
+
+        xpos += cw;
     }
+}
 
-    // We must let the native text control handle focus
+void wxGenericDataViewHeaderWindow::OnSetFocus( wxFocusEvent &event )
+{
+    GetParent()->SetFocus();
     event.Skip();
 }
 
-bool wxDataViewTextCtrlWrapper::AcceptChanges()
+void wxGenericDataViewHeaderWindow::OnMouse( wxMouseEvent &event )
 {
-    const wxString value = m_text->GetValue();
+    // we want to work with logical coords
+    int x;
+    m_owner->CalcUnscrolledPosition(event.GetX(), 0, &x, NULL);
+    int y = event.GetY();
 
-    if ( value == m_startValue )
-        // nothing changed, always accept
-        return true;
+    if (m_isDragging)
+    {
+        // 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;
+
+        if (event.ButtonUp())
+        {
+            m_isDragging = false;
+            if (HasCapture())
+                ReleaseMouse();
 
-//    if ( !m_owner->OnRenameAccept(m_itemEdited, value) )
-        // vetoed by the user
-//        return false;
+            m_dirty = true;
+        }
+        m_currentX = wxMax(m_minX + 7, x);
 
-    // accepted, do rename the item
-    wxVariant variant;
-    variant = value;
-    m_model->SetValue( variant, m_col, m_row );
-    m_model->ValueChanged( m_col, m_row );
+        if (m_currentX < w)
+        {
+            GetColumn(m_column)->SetWidth(m_currentX - m_minX);
+            Refresh();
+            GetOwner()->Refresh();
+        }
 
-    return true;
+    }
+    else     // not dragging
+    {
+        m_minX = 0;
+        m_column = wxNOT_FOUND;
+
+        bool hit_border = false;
+
+        // end of the current column
+        int xpos = 0;
+
+        // find the column where this event occured
+        int countCol = m_owner->GetColumnCount();
+        for (int column = 0; column < countCol; column++)
+        {
+            wxDataViewColumn *p = GetColumn(column);
+
+            if (p->IsHidden())
+                continue;   // skip if not shown
+
+            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;
+            }
+            else    // click on a column
+            {
+                wxDataViewModel * model = GetOwner()->GetModel();
+                wxEventType evt = event.LeftDown() ?
+                        wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK :
+                        wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK;
+                SendEvent(evt, m_column);
+
+                //Left click the header
+                if(event.LeftDown())
+                {
+                    wxDataViewColumn *col = GetColumn(m_column);
+                    if(col->IsSortable())
+                    {
+                        wxDataViewColumn* sortCol = m_owner->GetSortingColumn();
+                        if(model && sortCol == col)
+                        {
+                            bool order = col->IsSortOrderAscending();
+                            col->SetSortOrder(!order);
+                        }
+                        else if(model)
+                        {
+                            m_owner->SetSortingColumn(col);
+                        }
+                    }
+                    UpdateDisplay();
+                    if(model)
+                        model->Resort();
+                    //Send the column sorted event
+                    SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED, m_column);
+                }
+            }
+        }
+        else if (event.Moving())
+        {
+            if (hit_border && resizeable)
+                m_currentCursor = m_resizeCursor;
+            else
+                m_currentCursor = wxSTANDARD_CURSOR;
+
+            SetCursor(*m_currentCursor);
+        }
+    }
 }
 
-void wxDataViewTextCtrlWrapper::Finish()
+//I must say that this function is deprecated, but I think it is useful to keep it for a time
+void wxGenericDataViewHeaderWindow::DrawCurrent()
 {
-    if ( !m_finished )
-    {
-        m_finished = true;
+#if 1
+    GetColumn(m_column)->SetWidth(m_currentX - m_minX);
+#else
+    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 );
+#endif
+}
 
-        m_text->RemoveEventHandler(this);
-        m_owner->FinishEditing(m_text);
+void wxGenericDataViewHeaderWindow::AdjustDC(wxDC& dc)
+{
+    int xpix, x;
 
-        // delete later
-        wxPendingDelete.Append( this );
-    }
+    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();
 }
 
 //-----------------------------------------------------------------------------
 // wxDataViewMainWindow
 //-----------------------------------------------------------------------------
 
+//The tree building helper, declared firstly
+void BuildTreeHelper( wxDataViewModel * model,  wxDataViewItem & item, wxDataViewTreeNode * node);
+
 int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
 {
     if (row1 > row2) return 1;
@@ -951,14 +1868,19 @@ wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID i
 
     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 = 20;
+    m_lineHeight =
+#ifdef __WXMSW__
+        17;
+#else
+        20;
+#endif
+    wxASSERT(m_lineHeight > 2*PADDING_TOPBOTTOM);
 
     m_dragCount = 0;
     m_dragStart = wxPoint(0,0);
@@ -971,11 +1893,23 @@ wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID i
     SetBackgroundStyle( wxBG_STYLE_CUSTOM );
     SetBackgroundColour( *wxWHITE );
 
+    m_penRule = wxPen(GetRuleColour(), 1, wxSOLID);
+
+    //Here I compose a pen can draw black lines, maybe there are something system colour to use
+    m_penExpander = wxPen( wxColour(0,0,0), 1, wxSOLID );
+    //Some new added code to deal with the tree structure
+    m_root = new wxDataViewTreeNode( NULL );
+    m_root->SetHasChildren(true);
+
+    //Make m_count = -1 will cause the class recaculate the real displaying number of rows.
+    m_count = -1 ;
+    m_underMouse = NULL;
     UpdateDisplay();
 }
 
 wxDataViewMainWindow::~wxDataViewMainWindow()
 {
+    DestroyTree();
     delete m_renameTimer;
 }
 
@@ -986,78 +1920,244 @@ void wxDataViewMainWindow::OnRenameTimer()
     if ( m_dirty )
         wxSafeYield();
 
-
     int xpos = 0;
-    unsigned int cols = GetOwner()->GetNumberOfColumns();
+    unsigned int cols = GetOwner()->GetColumnCount();
     unsigned int i;
     for (i = 0; i < cols; i++)
     {
         wxDataViewColumn *c = GetOwner()->GetColumn( i );
+        if (c->IsHidden())
+            continue;      // skip it!
+
         if (c == m_currentCol)
             break;
         xpos += c->GetWidth();
     }
-    wxRect labelRect( xpos, m_currentRow * m_lineHeight, m_currentCol->GetWidth(), m_lineHeight );
+    wxRect labelRect( xpos, m_currentRow * m_lineHeight,
+                      m_currentCol->GetWidth(), m_lineHeight );
 
-    wxClassInfo *textControlClass = CLASSINFO(wxTextCtrl);
+    GetOwner()->CalcScrolledPosition( labelRect.x, labelRect.y,
+                                     &labelRect.x, &labelRect.y);
 
-    wxTextCtrl * const text = (wxTextCtrl *)textControlClass->CreateObject();
-    m_textctrlWrapper = new wxDataViewTextCtrlWrapper(this, text, GetOwner()->GetModel(),
-        m_currentCol->GetModelColumn(), m_currentRow, labelRect );
-}
+    wxDataViewItem item = GetItemByRow( m_currentRow );
+    m_currentCol->GetRenderer()->StartEditing( item, labelRect );
 
-void wxDataViewMainWindow::FinishEditing( wxTextCtrl *text )
-{
-    delete text;
-    m_textctrlWrapper = NULL;
-    SetFocus();
-  //  SetFocusIgnoringChildren();
 }
 
-bool wxDataViewMainWindow::RowAppended()
+//------------------------------------------------------------------
+// Helper class for do operation on the tree node
+//------------------------------------------------------------------
+class DoJob
 {
-    return false;
-}
+public:
+    DoJob(){};
+    virtual ~DoJob(){};
+
+    //The return value control how the tree-walker tranverse the tree
+    // 0: Job done, stop tranverse and return
+    // 1: Ignore the current node's subtree and continue
+    // 2: Job not done, continue
+    enum  { OK = 0 , IGR = 1, CONT = 2 };
+    virtual int operator() ( wxDataViewTreeNode * node ) = 0 ;
+    virtual int operator() ( void * n ) = 0;
+};
 
-bool wxDataViewMainWindow::RowPrepended()
+bool Walker( wxDataViewTreeNode * node, DoJob & func )
 {
+    if( node==NULL )
+        return false;
+
+    switch( func( node ) )
+    {
+        case DoJob::OK :
+            return true ;
+        case DoJob::IGR:
+            return false;
+        case DoJob::CONT:
+            default:
+                ;
+    }
+
+    wxDataViewTreeNodes nodes = node->GetNodes();
+    wxDataViewTreeLeaves leaves = node->GetChildren();
+
+    int len_nodes = nodes.GetCount();
+    int len = leaves.GetCount();
+    int i = 0, nodes_i = 0;
+
+    for( ; i < len ; i ++ )
+    {
+        void * n = leaves[i];
+        if( nodes_i < len_nodes && n == nodes[nodes_i]->GetItem().GetID() )
+        {
+            wxDataViewTreeNode * nd = nodes[nodes_i];
+            nodes_i++;
+
+            if( Walker( nd , func ) )
+                return true;
+
+        }
+        else
+            switch( func( n ) )
+            {
+                case DoJob::OK :
+                    return true ;
+                case DoJob::IGR:
+                    continue;
+                case DoJob::CONT:
+                default:
+                    ;
+            }
+    }
     return false;
 }
 
-bool wxDataViewMainWindow::RowInserted( unsigned int WXUNUSED(before) )
+bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
 {
-    return false;
+    SortPrepare();
+
+    wxDataViewTreeNode * node;
+    node = FindNode(parent);
+
+    if( node == NULL )
+        return false;
+
+    node->SetHasChildren( true );
+
+    if( g_model->IsContainer( item ) )
+    {
+        wxDataViewTreeNode * newnode = new wxDataViewTreeNode( node );
+        newnode->SetItem(item);
+        newnode->SetHasChildren( true );
+        node->AddNode( newnode);
+    }
+    else
+        node->AddLeaf( item.GetID() );
+
+    node->ChangeSubTreeCount(1);
+
+    m_count = -1;
+    UpdateDisplay();
+
+    return true;
 }
 
-bool wxDataViewMainWindow::RowDeleted( unsigned int WXUNUSED(row) )
+void DestroyTreeHelper( wxDataViewTreeNode * node);
+
+bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
+                                       const wxDataViewItem& item)
 {
-    return false;
+    wxDataViewTreeNode * node = FindNode(parent);
+
+    wxCHECK_MSG( node != NULL, false, "item not found" );
+    wxCHECK_MSG( node->GetChildren().Index( item.GetID() ) != wxNOT_FOUND, false, "item not found" );
+
+    int sub = -1;
+    node->GetChildren().Remove( item.GetID() );
+    //Manuplate selection
+    if( m_selection.GetCount() > 1 )
+    {
+        m_selection.Empty();
+    }
+    bool isContainer = false;
+    wxDataViewTreeNodes nds = node->GetNodes();
+    for (size_t i = 0; i < nds.GetCount(); i ++)
+    {
+        if (nds[i]->GetItem() == item)
+        {
+            isContainer = true;
+            break;
+        }
+    }
+    if( isContainer )
+    {
+        wxDataViewTreeNode * n = NULL;
+        wxDataViewTreeNodes nodes = node->GetNodes();
+        int len = nodes.GetCount();
+        for( int i = 0 ; i < len; i ++)
+        {
+            if( nodes[i]->GetItem() == item )
+            {
+                n = nodes[i];
+                break;
+            }
+        }
+
+        wxCHECK_MSG( n != NULL, false, "item not found" );
+
+        node->GetNodes().Remove( n );
+        sub -= n->GetSubTreeCount();
+        DestroyTreeHelper(n);
+    }
+    //Make the row number invalid and get a new valid one when user call GetRowCount
+    m_count = -1;
+    node->ChangeSubTreeCount(sub);
+    if( node->GetChildrenNumber() == 0)
+    {
+        node->GetParent()->GetNodes().Remove( node );
+        delete node;
+    }
+
+    //Change the current row to the last row if the current exceed the max row number
+    if( m_currentRow > GetRowCount() )
+        m_currentRow = m_count - 1;
+
+    UpdateDisplay();
+
+    return true;
 }
 
-bool wxDataViewMainWindow::RowChanged( unsigned int WXUNUSED(row) )
+bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
 {
-    return false;
+    SortPrepare();
+    g_model->Resort();
+
+    //Send event
+    wxWindow *parent = GetParent();
+    wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
+    le.SetEventObject(parent);
+    le.SetModel(GetOwner()->GetModel());
+    le.SetItem(item);
+    parent->GetEventHandler()->ProcessEvent(le);
+    
+    return true;
 }
 
-bool wxDataViewMainWindow::ValueChanged( unsigned int WXUNUSED(col), unsigned int row )
+bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int col )
 {
-    wxRect rect( 0, row*m_lineHeight, 10000, m_lineHeight );
+    // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
+/*#define MAX_VIRTUAL_WIDTH       100000
+
+    wxRect rect( 0, row*m_lineHeight, MAX_VIRTUAL_WIDTH, m_lineHeight );
     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
     Refresh( true, &rect );
 
     return true;
-}
-
-bool wxDataViewMainWindow::RowsReordered( unsigned int *WXUNUSED(new_order) )
-{
-    Refresh();
+*/
+    SortPrepare();
+    g_model->Resort();
+
+    //Send event
+    wxWindow *parent = GetParent();
+    wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
+    le.SetEventObject(parent);
+    le.SetModel(GetOwner()->GetModel());
+    le.SetItem(item);
+    le.SetColumn(col);
+    le.SetDataViewColumn(GetOwner()->GetColumn(col));
+    parent->GetEventHandler()->ProcessEvent(le);
 
     return true;
 }
 
 bool wxDataViewMainWindow::Cleared()
 {
-    return false;
+    SortPrepare();
+
+    DestroyTree();
+    UpdateDisplay();
+
+    return true;
 }
 
 void wxDataViewMainWindow::UpdateDisplay()
@@ -1078,23 +2178,15 @@ void wxDataViewMainWindow::OnInternalIdle()
 
 void wxDataViewMainWindow::RecalculateDisplay()
 {
-    wxDataViewListModel *model = GetOwner()->GetModel();
+    wxDataViewModel *model = GetOwner()->GetModel();
     if (!model)
     {
         Refresh();
         return;
     }
 
-    int width = 0;
-    unsigned int cols = GetOwner()->GetNumberOfColumns();
-    unsigned int i;
-    for (i = 0; i < cols; i++)
-    {
-        wxDataViewColumn *col = GetOwner()->GetColumn( i );
-        width += col->GetWidth();
-    }
-
-    int height = model->GetNumberOfRows() * m_lineHeight;
+    int width = GetEndOfLastCol();
+    int height = GetRowCount() * m_lineHeight;
 
     SetVirtualSize( width, height );
     GetOwner()->SetScrollRate( 10, m_lineHeight );
@@ -1105,42 +2197,150 @@ void wxDataViewMainWindow::RecalculateDisplay()
 void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
 {
     wxWindow::ScrollWindow( dx, dy, rect );
-    GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
+
+    if (GetOwner()->m_headerArea)
+        GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
+}
+
+void wxDataViewMainWindow::ScrollTo( int rows, int column )
+{
+    int x, y;
+    m_owner->GetScrollPixelsPerUnit( &x, &y );
+    int sy = rows*m_lineHeight/y;
+    int sx = 0;
+    if( column != -1 )
+    {
+        wxRect rect = GetClientRect();
+        unsigned int colnum = 0;
+        unsigned int x_start = 0, x_end = 0, 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()->GetColumn(colnum);
+            if (col->IsHidden())
+                continue;      // skip it!
+
+            w = col->GetWidth();
+            x_start += w;
+        }
+
+        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 );
 }
 
 void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
 {
+    wxDataViewModel *model = GetOwner()->GetModel();
     wxAutoBufferedPaintDC dc( this );
 
+    // prepare the DC
     dc.SetBackground(GetBackgroundColour());
     dc.Clear();
-
     GetOwner()->PrepareDC( dc );
-
     dc.SetFont( GetFont() );
 
     wxRect update = GetUpdateRegion().GetBox();
     m_owner->CalcUnscrolledPosition( update.x, update.y, &update.x, &update.y );
 
-    wxDataViewListModel *model = GetOwner()->GetModel();
-
+    // 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->GetNumberOfRows()-item_start) );
+    unsigned int item_count =
+        wxMin( (int)(((update.y + update.height) / m_lineHeight) - item_start + 1),
+               (int)(GetRowCount( )- item_start) );
+    unsigned int item_last = item_start + item_count;
+
+    // compute which columns needs to be redrawn
+    unsigned int cols = GetOwner()->GetColumnCount();
+    unsigned int col_start = 0;
+    unsigned int x_start = 0;
+    for (x_start = 0; col_start < cols; col_start++)
+    {
+        wxDataViewColumn *col = GetOwner()->GetColumn(col_start);
+        if (col->IsHidden())
+            continue;      // skip it!
+
+        unsigned int w = col->GetWidth();
+        if (x_start+w >= (unsigned int)update.x)
+            break;
+
+        x_start += w;
+    }
+
+    unsigned int col_last = col_start;
+    unsigned int x_last = x_start;
+    for (; col_last < cols; col_last++)
+    {
+        wxDataViewColumn *col = GetOwner()->GetColumn(col_last);
+        if (col->IsHidden())
+            continue;      // skip it!
+
+        if (x_last > (unsigned int)update.GetRight())
+            break;
+
+        x_last += col->GetWidth();
+    }
+
+    // Draw horizontal rules if required
+    if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
+    {
+        dc.SetPen(m_penRule);
+        dc.SetBrush(*wxTRANSPARENT_BRUSH);
+
+        for (unsigned int i = item_start; i <= item_last+1; i++)
+        {
+            int y = i * m_lineHeight;
+            dc.DrawLine(x_start, y, x_last, y);
+        }
+    }
+
+    // Draw vertical rules if required
+    if ( m_owner->HasFlag(wxDV_VERT_RULES) )
+    {
+        dc.SetPen(m_penRule);
+        dc.SetBrush(*wxTRANSPARENT_BRUSH);
+
+        int x = x_start;
+        for (unsigned int i = col_start; i < col_last; i++)
+        {
+            wxDataViewColumn *col = GetOwner()->GetColumn(i);
+            if (col->IsHidden())
+                continue;       // skip it
 
+            dc.DrawLine(x, item_start * m_lineHeight,
+                        x, item_last * m_lineHeight);
 
+            x += col->GetWidth();
+        }
+
+        // Draw last vertical rule
+        dc.DrawLine(x, item_start * m_lineHeight,
+                    x, item_last * m_lineHeight);
+    }
 
-    unsigned int item;
-    for (item = item_start; item < item_start+item_count; item++)
+    // redraw the background for the items which are selected/current
+    for (unsigned int item = item_start; item < item_last; item++)
     {
-        if (m_selection.Index( item ) != wxNOT_FOUND)
+        bool selected = m_selection.Index( item ) != wxNOT_FOUND;
+        if (selected || item == m_currentRow)
         {
-            int flags = wxCONTROL_SELECTED;
+            int flags = selected ? (int)wxCONTROL_SELECTED : 0;
             if (item == m_currentRow)
                 flags |= wxCONTROL_CURRENT;
             if (m_hasFocus)
                 flags |= wxCONTROL_FOCUSED;
-            wxRect rect( 0, item*m_lineHeight+1, GetEndOfLastCol(), m_lineHeight-2 );
+
+            wxRect rect( x_start, item*m_lineHeight, x_last, m_lineHeight );
             wxRendererNative::Get().DrawItemSelectionRect
                                 (
                                     this,
@@ -1149,85 +2349,161 @@ void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
                                     flags
                                 );
         }
-        else
-        {
-            if (item == m_currentRow)
-            {
-                int flags = wxCONTROL_CURRENT;
-                if (m_hasFocus)
-                    flags |= wxCONTROL_FOCUSED;  // should have no effect
-                wxRect rect( 0, item*m_lineHeight+1, GetEndOfLastCol(), m_lineHeight-2 );
-                wxRendererNative::Get().DrawItemSelectionRect
-                                (
-                                    this,
-                                    dc,
-                                    rect,
-                                    flags
-                                );
+    }
 
-            }
-        }
+    wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
+    if (!expander)
+    {
+        // TODO: last column for RTL support
+        expander = GetOwner()->GetColumn( 0 );
+        GetOwner()->SetExpanderColumn(expander);
     }
 
+    // redraw all cells for all rows which must be repainted and for all columns
     wxRect cell_rect;
-    cell_rect.x = 0;
-    cell_rect.height = m_lineHeight;
-    unsigned int cols = GetOwner()->GetNumberOfColumns();
-    unsigned int i;
-    for (i = 0; i < cols; i++)
+    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++)
     {
         wxDataViewColumn *col = GetOwner()->GetColumn( i );
         wxDataViewRenderer *cell = col->GetRenderer();
         cell_rect.width = col->GetWidth();
 
-        for (item = item_start; item < item_start+item_count; item++)
+        if (col->IsHidden())
+            continue;       // skipt it!
+
+
+        for (unsigned int item = item_start; item < item_last; item++)
         {
-            cell_rect.y = item*m_lineHeight;
+            // get the cell value and set it into the renderer
             wxVariant value;
-            model->GetValue( value, col->GetModelColumn(), item );
+         wxDataViewTreeNode * node = GetTreeNodeByRow(item);
+         if( node == NULL )
+         {
+             continue;
+         }
+
+            wxDataViewItem dataitem = node->GetItem();
+             model->GetValue( value, dataitem, col->GetModelColumn());
             cell->SetValue( value );
-            wxSize size = cell->GetSize();
-            // cannot be bigger than allocated space
-            size.x = wxMin( size.x, cell_rect.width );
-            size.y = wxMin( size.y, cell_rect.height );
-            // TODO: check for left/right/centre alignment here
-            wxRect item_rect;
-            // for now: centre
-            item_rect.x = cell_rect.x + (cell_rect.width / 2) - (size.x / 2);
-            item_rect.y = cell_rect.y + (cell_rect.height / 2) - (size.y / 2);
 
-            item_rect.width = size.x;
-            item_rect.height= size.y;
+            // update the y offset
+            cell_rect.y = item * m_lineHeight;
+
+            //Draw the expander here.
+            int indent = node->GetIndentLevel();
+            if( col == expander )
+            {
+                //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 , expander_y = cell_rect.y + EXPANDER_MARGIN ;
+                indent = indent + m_lineHeight ;  //try to use the m_lineHeight as the expander space
+                dc.SetPen( m_penExpander );
+                dc.SetBrush( wxNullBrush );
+                if( node->HasChildren() )
+                {
+                    wxRect rect( expander_x , expander_y, expander_width, expander_width);
+                    int flag = 0;
+                    if (m_underMouse == node)
+                    {
+                        flag |= wxCONTROL_CURRENT;
+                    }
+                    if( node->IsOpen() )
+                        wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag|wxCONTROL_EXPANDED );
+                    else
+                        wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
+                }
+                else
+                {
+                     // I am wandering whether we should draw dot lines between tree nodes
+                     delete node;
+                     //Yes, if the node does not have any child, it must be a leaf which mean that it is a temporarily created by GetTreeNodeByRow
+                }
+
+                 //force the expander column to left-center align
+                 cell->SetAlignment( wxALIGN_CENTER_VERTICAL );
+            }
+
+
+            // 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 + 2*PADDING_TOPBOTTOM, cell_rect.height );
+
+            wxRect item_rect(cell_rect.GetTopLeft(), size);
+            int align = cell->GetAlignment();
+
+            // horizontal alignment:
+            item_rect.x = cell_rect.x;
+            if (align & wxALIGN_CENTER_HORIZONTAL)
+                item_rect.x = cell_rect.x + (cell_rect.width / 2) - (size.x / 2);
+            else if (align & wxALIGN_RIGHT)
+                item_rect.x = cell_rect.x + cell_rect.width - size.x;
+            //else: wxALIGN_LEFT is the default
+
+            // vertical alignment:
+            item_rect.y = cell_rect.y;
+            if (align & wxALIGN_CENTER_VERTICAL)
+                item_rect.y = cell_rect.y + (cell_rect.height / 2) - (size.y / 2);
+            else if (align & wxALIGN_BOTTOM)
+                item_rect.y = cell_rect.y + cell_rect.height - size.y;
+            //else: wxALIGN_TOP is the default
+
+            // add padding
+            item_rect.x += PADDING_RIGHTLEFT;
+            item_rect.y += PADDING_TOPBOTTOM;
+            item_rect.width = size.x - 2 * PADDING_RIGHTLEFT;
+            item_rect.height = size.y - 2 * PADDING_TOPBOTTOM;
+
+            //Here we add the tree indent
+            item_rect.x += indent;
 
             int state = 0;
-            if (item == m_currentRow)
+            if (m_selection.Index(item) != wxNOT_FOUND)
                 state |= wxDATAVIEW_CELL_SELECTED;
+
+            // TODO: it would be much more efficient to create a clipping
+            //       region for the entire column being rendered (in the OnPaint
+            //       of wxDataViewMainWindow) instead of a single clip region for
+            //       each cell. However it would mean that each renderer should
+            //       respect the given wxRect's top & bottom coords, eventually
+            //       violating only the left & right coords - however the user can
+            //       make its own renderer and thus we cannot be sure of that.
+            dc.SetClippingRegion( item_rect );
             cell->Render( item_rect, &dc, state );
+            dc.DestroyClippingRegion();
         }
 
         cell_rect.x += cell_rect.width;
     }
 }
 
-int wxDataViewMainWindow::GetCountPerPage()
+int wxDataViewMainWindow::GetCountPerPage() const
 {
     wxSize size = GetClientSize();
     return size.y / m_lineHeight;
 }
 
-int wxDataViewMainWindow::GetEndOfLastCol()
+int wxDataViewMainWindow::GetEndOfLastCol() const
 {
     int width = 0;
     unsigned int i;
-    for (i = 0; i < GetOwner()->GetNumberOfColumns(); i++)
+    for (i = 0; i < GetOwner()->GetColumnCount(); i++)
     {
-        wxDataViewColumn *c = GetOwner()->GetColumn( i );
-        width += c->GetWidth();
+        const wxDataViewColumn *c =
+            wx_const_cast(wxDataViewCtrl*, GetOwner())->GetColumn( i );
+
+        if (!c->IsHidden())
+            width += c->GetWidth();
     }
     return width;
 }
 
-unsigned int wxDataViewMainWindow::GetFirstVisibleRow()
+unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
 {
     int x = 0;
     int y = 0;
@@ -1239,14 +2515,29 @@ unsigned int wxDataViewMainWindow::GetFirstVisibleRow()
 unsigned int wxDataViewMainWindow::GetLastVisibleRow()
 {
     wxSize client_size = GetClientSize();
-    m_owner->CalcUnscrolledPosition( client_size.x, client_size.y, &client_size.x, &client_size.y );
+    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 = (client_size.y)/m_lineHeight;
+    if( client_size.y % m_lineHeight < m_lineHeight/2 )
+        row -= 1;
 
-    return wxMin( GetRowCount()-1, ((unsigned)client_size.y/m_lineHeight)+1 );
+    return wxMin( GetRowCount()-1, row );
 }
 
 unsigned int wxDataViewMainWindow::GetRowCount()
 {
-    return GetOwner()->GetModel()->GetNumberOfRows();
+    if ( m_count == -1 )
+    {
+        m_count = RecalculateCount();
+        int width, height;
+        GetVirtualSize( &width, &height );
+        height = m_count * m_lineHeight;
+
+        SetVirtualSize( width, height );
+    }
+    return m_count;
 }
 
 void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
@@ -1329,6 +2620,17 @@ void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool
     RefreshRows( from, to );
 }
 
+void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
+{
+    for (size_t i=0; i < aSelections.GetCount(); i++)
+    {
+        int n = aSelections[i];
+
+        m_selection.Add( n );
+        RefreshRow( n );
+    }
+}
+
 void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
 {
     if (m_selection.Index( row ) == wxNOT_FOUND)
@@ -1338,103 +2640,585 @@ void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
     RefreshRow( row );
 }
 
-bool wxDataViewMainWindow::IsRowSelected( unsigned int 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, row*m_lineHeight, GetEndOfLastCol(), m_lineHeight );
+    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, from*m_lineHeight, GetEndOfLastCol(), (to-from+1) * m_lineHeight );
+    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 )
+{
+    unsigned int count = GetRowCount();
+    if (firstRow > count)
+        return;
+
+    wxRect rect( 0, firstRow*m_lineHeight, GetEndOfLastCol(), count * m_lineHeight );
+    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::OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event)
+{
+    wxCHECK_RET( newCurrent < GetRowCount(),
+                 _T("invalid item index in OnArrowChar()") );
+
+    // if there is no selection, we cannot move it anywhere
+    if (!HasCurrentRow())
+        return;
+
+    unsigned int oldCurrent = m_currentRow;
+
+    // in single selection we just ignore Shift as we can't select several
+    // items anyhow
+    if ( event.ShiftDown() && !IsSingleSel() )
+    {
+        RefreshRow( oldCurrent );
+
+        ChangeCurrentRow( newCurrent );
+
+        // select all the items between the old and the new one
+        if ( oldCurrent > newCurrent )
+        {
+            newCurrent = oldCurrent;
+            oldCurrent = m_currentRow;
+        }
+
+        SelectRows( oldCurrent, newCurrent, true );
+        if (oldCurrent!=newCurrent)
+            SendSelectionChangedEvent(GetItemByRow(m_selection[0]));
+    }
+    else // !shift
+    {
+        RefreshRow( oldCurrent );
+
+        // all previously selected items are unselected unless ctrl is held
+        if ( !event.ControlDown() )
+            SelectAllRows(false);
+
+        ChangeCurrentRow( newCurrent );
+
+        if ( !event.ControlDown() )
+        {
+            SelectRow( m_currentRow, true );
+            SendSelectionChangedEvent(GetItemByRow(m_currentRow));
+        }
+        else
+            RefreshRow( m_currentRow );
+    }
+
+    //EnsureVisible( m_currentRow );
+}
+
+wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
+{
+    wxRect rect;
+    rect.x = 0;
+    rect.y = m_lineHeight * row;
+    rect.width = GetEndOfLastCol();
+    rect.height = m_lineHeight;
+
+    return rect;
+}
+
+class RowToItemJob: public DoJob
+{
+public:
+    RowToItemJob( unsigned int row , int current ) { this->row = row; this->current = current ;}
+    virtual ~RowToItemJob(){};
+
+    virtual int operator() ( wxDataViewTreeNode * node )
+    {
+        current ++;
+        if( current == static_cast<int>(row))
+         {
+            ret = node->GetItem() ;
+            return DoJob::OK;
+        }
+
+        if( node->GetSubTreeCount() + current < static_cast<int>(row) )
+        {
+            current += node->GetSubTreeCount();
+            return  DoJob::IGR;
+        }
+        else
+        {
+            //If the current has no child node, we can find the desired item of the row number directly.
+            //This if can speed up finding in some case, and will has a very good effect when it comes to list view
+            if( node->GetNodes().GetCount() == 0)
+            {
+                int index = static_cast<int>(row) - current - 1;
+                ret = node->GetChildren().Item( index );
+                return DoJob::OK;
+            }
+            return DoJob::CONT;
+        }
+    }
+
+    virtual int operator() ( void * n )
+    {
+        current ++;
+        if( current == static_cast<int>(row))
+         {
+            ret = wxDataViewItem( n ) ;
+            return DoJob::OK;
+        }
+        return DoJob::CONT;
+    }
+    wxDataViewItem GetResult(){ return ret; }
+private:
+    unsigned int row;
+    int current ;
+    wxDataViewItem ret;
+};
+
+wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
+{
+    RowToItemJob job( row, -2 );
+    Walker( m_root , job );
+    return job.GetResult();
+}
+
+class RowToTreeNodeJob: public DoJob
+{
+public:
+    RowToTreeNodeJob( unsigned int row , int current, wxDataViewTreeNode * node )
+    {
+        this->row = row;
+        this->current = current ;
+        ret = NULL ;
+        parent = node;
+    }
+    virtual ~RowToTreeNodeJob(){};
+
+    virtual int operator() ( wxDataViewTreeNode * node )
+    {
+        current ++;
+        if( current == static_cast<int>(row))
+         {
+            ret = node ;
+            return DoJob::OK;
+        }
+
+        if( node->GetSubTreeCount() + current < static_cast<int>(row) )
+        {
+            current += node->GetSubTreeCount();
+            return  DoJob::IGR;
+        }
+        else
+        {
+            parent = node;
+            //If the current has no child node, we can find the desired item of the row number directly.
+            //This if can speed up finding in some case, and will has a very good effect when it comes to list view
+            if( node->GetNodes().GetCount() == 0)
+            {
+                int index = static_cast<int>(row) - current - 1;
+                void * n = node->GetChildren().Item( index );
+                ret = new wxDataViewTreeNode( parent ) ;
+                ret->SetItem( wxDataViewItem( n ));
+                ret->SetHasChildren(false);
+                return DoJob::OK;
+            }
+            return DoJob::CONT;
+        }
+
+
+    }
+
+    virtual int operator() ( void * n )
+    {
+        current ++;
+        if( current == static_cast<int>(row))
+         {
+            ret = new wxDataViewTreeNode( parent ) ;
+            ret->SetItem( wxDataViewItem( n ));
+            ret->SetHasChildren(false);
+            return DoJob::OK;
+        }
+
+        return DoJob::CONT;
+    }
+    wxDataViewTreeNode * GetResult(){ return ret; }
+private:
+    unsigned int row;
+    int current ;
+    wxDataViewTreeNode * ret;
+    wxDataViewTreeNode * parent ;
+};
+
+
+wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row)
+{
+    RowToTreeNodeJob job( row , -2, m_root );
+    Walker( m_root , job );
+    return job.GetResult();
+}
+
+wxDataViewEvent wxDataViewMainWindow::SendExpanderEvent( wxEventType type, const wxDataViewItem & item )
+{
+    wxWindow *parent = GetParent();
+    wxDataViewEvent le(type, parent->GetId());
+
+    le.SetEventObject(parent);
+    le.SetModel(GetOwner()->GetModel());
+    le.SetItem( item );
+
+    parent->GetEventHandler()->ProcessEvent(le);
+    return le;
+}
+
+void wxDataViewMainWindow::OnExpanding( unsigned int row )
+{
+    wxDataViewTreeNode * node = GetTreeNodeByRow(row);
+    if( node != NULL )
+    {
+        if( node->HasChildren())
+        {
+            if( !node->IsOpen())
+            {
+               wxDataViewEvent e = SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING,node->GetItem());
+               //Check if the user prevent expanding
+               if( e.GetSkipped() )
+                    return;
+
+               node->ToggleOpen();
+               //Here I build the children of current node
+               if( node->GetChildrenNumber() == 0 )
+               {
+                   SortPrepare();
+                   BuildTreeHelper(GetOwner()->GetModel(), node->GetItem(), node);
+               }
+               m_count = -1;
+               UpdateDisplay();
+               //Send the expanded event
+               SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());
+            }
+            else
+            {
+                SelectRow( row, false );
+                SelectRow( row + 1, true );
+                ChangeCurrentRow( row + 1 );
+                SendSelectionChangedEvent( GetItemByRow(row+1));
+            }
+        }
+        else
+            delete node;
+    }
+}
+
+void wxDataViewMainWindow::OnCollapsing(unsigned int row)
+{
+    wxDataViewTreeNode * node = GetTreeNodeByRow(row);
+    if( node != NULL )
+    {
+        wxDataViewTreeNode * nd = node;
+
+        if( node->HasChildren() && node->IsOpen() )
+        {
+            wxDataViewEvent e = SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem());
+            if( e.GetSkipped() )
+                return;
+            node->ToggleOpen();
+            m_count = -1;
+            UpdateDisplay();
+            SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,nd->GetItem());
+        }
+        else
+        {
+            node = node->GetParent();
+            if( node != NULL )
+            {
+                int  parent = GetRowByItem( node->GetItem() ) ;
+                if( parent >= 0 )
+                {
+                    SelectRow( row, false);
+                    SelectRow(parent , true );
+                    ChangeCurrentRow( parent );
+                    SendSelectionChangedEvent( node->GetItem() );
+                }
+            }
+        }
+        if( !nd->HasChildren())
+            delete nd;
+    }
+}
+
+wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
+{
+    wxDataViewModel * model = GetOwner()->GetModel();
+    if( model == NULL )
+        return NULL;
+
+    //Compose the a parent-chain of the finding item
+    ItemList list;
+    list.DeleteContents( true );
+    wxDataViewItem it( item );
+    while( it.IsOk() )
+    {
+        wxDataViewItem * pItem = new wxDataViewItem( it );
+        list.Insert( pItem );
+        it = model->GetParent( it );
+    }
+
+    //Find the item along the parent-chain.
+    //This algorithm is designed to speed up the node-finding method
+    wxDataViewTreeNode * node = m_root;
+    for( ItemList::const_iterator iter = list.begin(); iter !=list.end() ; iter++ )
+    {
+        if( node->HasChildren() )
+        {
+            if( node->GetChildrenNumber() == 0 )
+            {
+                SortPrepare();
+                BuildTreeHelper(model, node->GetItem(), node);
+            }
+
+            wxDataViewTreeNodes nodes = node->GetNodes();
+            int i = 0;
+            for (; i < nodes.GetCount(); i ++)
+            {
+                if (nodes[i]->GetItem() == (**iter))
+                {
+                    node = nodes[i];
+                    break;
+                }
+            }
+            if (i == nodes.GetCount())
+                return NULL;
+        }
+        else
+            return NULL;
+    }
+    return node;
+}
+
+void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column )
+{
+    wxDataViewColumn *col = NULL;
+    unsigned int cols = GetOwner()->GetColumnCount();
+    unsigned int colnum = 0;
+    unsigned int x_start = 0;
+    int x, y;
+    m_owner->CalcUnscrolledPosition( point.x, point.y, &x, &y );
+    for (x_start = 0; colnum < cols; colnum++)
+    {
+        col = GetOwner()->GetColumn(colnum);
+        if (col->IsHidden())
+            continue;      // skip it!
+
+        unsigned int w = col->GetWidth();
+        if (x_start+w >= (unsigned int)x)
+            break;
+
+        x_start += w;
+    }
+
+    column = col;
+    item = GetItemByRow( y/m_lineHeight );
+}
+
+wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column )
 {
-    return (m_selection.Index( row ) != wxNOT_FOUND);
+    int row = GetRowByItem(item);
+    int y = row*m_lineHeight;
+    int h = m_lineHeight;
+    int x = 0;
+    wxDataViewColumn *col = NULL;
+    for( int i = 0, cols = GetOwner()->GetColumnCount(); i < cols; i ++ )
+    {
+       col = GetOwner()->GetColumn( i );
+       x += col->GetWidth();
+       if( GetOwner()->GetColumn(i+1) == column )
+           break;
+    }
+    int w = col->GetWidth();
+    m_owner->CalcScrolledPosition( x, y, &x, &y );
+    return wxRect(x, y, w, h);
 }
 
-void wxDataViewMainWindow::RefreshRow( unsigned int row )
+int wxDataViewMainWindow::RecalculateCount()
 {
-    wxRect rect( 0, row*m_lineHeight, GetEndOfLastCol(), m_lineHeight );
-    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 );
+    return m_root->GetSubTreeCount();
 }
 
-void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
+class ItemToRowJob : public DoJob
 {
-    if (from > to)
+public:
+    ItemToRowJob(const wxDataViewItem & item, ItemList::const_iterator iter )
+    { this->item = item ; ret = -1 ; m_iter = iter ; }
+    virtual ~ItemToRowJob(){};
+
+    //Maybe binary search will help to speed up this process
+    virtual int operator() ( wxDataViewTreeNode * node)
     {
-        unsigned int tmp = to;
-        to = from;
-        from = tmp;
+         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;
+         }
+
     }
 
-    wxRect rect( 0, from*m_lineHeight, GetEndOfLastCol(), (to-from+1) * m_lineHeight );
-    m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
+    virtual int operator() ( void * n )
+    {
+        ret ++;
+        if( n == item.GetID() )
+            return DoJob::OK;
+        return DoJob::CONT;
+    }
+    //the row number is begin from zero
+    int GetResult(){ return ret -1 ; }
+private:
+    ItemList::const_iterator  m_iter;
+    wxDataViewItem item;
+    int ret;
 
-    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)
 {
-    unsigned int count = GetRowCount();
-    if (firstRow > count)
-        return;
+    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( !item.IsOk() )
+        return -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 );
+    //Compose the a parent-chain of the finding item
+    ItemList list;
+    wxDataViewItem * pItem = NULL;
+    list.DeleteContents( true );
+    wxDataViewItem it( item );
+    while( it.IsOk() )
+    {
+        pItem = new wxDataViewItem( it );
+        list.Insert( pItem );
+        it = model->GetParent( it );
+    }
+    pItem = new wxDataViewItem( );
+    list.Insert( pItem );
+
+    ItemToRowJob job( item, list.begin() );
+    Walker(m_root , job );
+    return job.GetResult();
 }
 
-void wxDataViewMainWindow::OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event)
+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())
-        return;
-
-    unsigned int oldCurrent = m_currentRow;
+    if( !model->IsContainer( item ) )
+        return ;
 
-    // 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);
+    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)
+{
+    //First we define a invalid item to fetch the top-level elements
+    wxDataViewItem item;
+    SortPrepare();
+    BuildTreeHelper( model, item, m_root);
+    m_count = -1 ;
+}
 
-        if ( !event.ControlDown() )
-            SelectRow( m_currentRow, true );
-        else
-            RefreshRow( m_currentRow );
+void DestroyTreeHelper( wxDataViewTreeNode * node )
+{
+    if( node->GetNodeNumber() != 0 )
+    {
+        int len = node->GetNodeNumber();
+        int i = 0 ;
+        wxDataViewTreeNodes nodes = node->GetNodes();
+        for( ; i < len; i ++ )
+        {
+            DestroyTreeHelper(nodes[i]);
+        }
     }
+    delete node;
+}
 
-    // MoveToFocus();
+void wxDataViewMainWindow::DestroyTree()
+{
+    DestroyTreeHelper(m_root);
+    m_root->SetSubTreeCount(0);
+    m_count = 0 ;
 }
 
 void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
@@ -1472,7 +3256,13 @@ void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
             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 );
@@ -1523,15 +3313,17 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
     int x = event.GetX();
     int y = event.GetY();
     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
-
     wxDataViewColumn *col = NULL;
 
     int xpos = 0;
-    unsigned int cols = GetOwner()->GetNumberOfColumns();
+    unsigned int cols = GetOwner()->GetColumnCount();
     unsigned int i;
     for (i = 0; i < cols; i++)
     {
         wxDataViewColumn *c = GetOwner()->GetColumn( i );
+        if (c->IsHidden())
+            continue;      // skip it!
+
         if (x < xpos + c->GetWidth())
         {
             col = c;
@@ -1541,17 +3333,56 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
     }
     if (!col)
         return;
-    wxDataViewRenderer *cell = col->GetRenderer();
 
+    wxDataViewRenderer *cell = col->GetRenderer();
     unsigned int current = y / m_lineHeight;
-
     if ((current > GetRowCount()) || (x > GetEndOfLastCol()))
     {
         // 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 (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, current * m_lineHeight + EXPANDER_MARGIN, m_lineHeight-2*EXPANDER_MARGIN,m_lineHeight-2*EXPANDER_MARGIN);
+            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()));
+                    Refresh(GetRowByItem(m_underMouse->GetItem()));
+                }
+                if (m_underMouse != node)
+                {
+                    //wxLogMessage("Do the row: %d", current);
+                    Refresh(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()));
+            Refresh(GetRowByItem(m_underMouse->GetItem()));
+            m_underMouse = NULL;
+        }
+    }
+
+    wxDataViewModel *model = GetOwner()->GetModel();
 
     if (event.Dragging())
     {
@@ -1593,11 +3424,23 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
         {
             if (cell->GetMode() == wxDATAVIEW_CELL_ACTIVATABLE)
             {
+                wxDataViewItem item = GetItemByRow(current);
                 wxVariant value;
-                model->GetValue( value, col->GetModelColumn(), current );
+                model->GetValue( value, item, col->GetModelColumn() );
                 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, current * m_lineHeight,
+                                  col->GetWidth(), m_lineHeight );
+                cell->Activate( cell_rect, model, item, col->GetModelColumn() );
+
+                wxWindow *parent = GetParent();
+                wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
+
+                le.SetEventObject(parent);
+                le.SetColumn(col->GetModelColumn());
+                le.SetDataViewColumn(col);
+                le.SetModel(GetOwner()->GetModel());
+
+                parent->GetEventHandler()->ProcessEvent(le);
             }
             return;
         }
@@ -1618,7 +3461,28 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
             SelectRow( m_lineSelectSingleOnUp, true );
         }
 
-        if (m_lastOnSame)
+        //Process the event of user clicking the expander
+        bool expander = false;
+        if (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, current * m_lineHeight + EXPANDER_MARGIN, m_lineHeight-2*EXPANDER_MARGIN,m_lineHeight-2*EXPANDER_MARGIN);
+                if( rect.Contains( x, y) )
+                {
+                    expander = true;
+                    if( node->IsOpen() )
+                        OnCollapsing(current);
+                    else
+                        OnExpanding( current );
+                }
+            }
+        }
+        //If the user click the expander, we do not do editing even if the column with expander are editable
+        if (m_lastOnSame && !expander )
         {
             if ((col == m_currentCol) && (current == m_currentRow) &&
                 (cell->GetMode() == wxDATAVIEW_CELL_EDITABLE) )
@@ -1651,6 +3515,7 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
             SelectAllRows(false);
             ChangeCurrentRow(current);
             SelectRow(m_currentRow,true);
+            SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
         }
 
         // notify cell about right click
@@ -1666,9 +3531,7 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
     }
     if (event.LeftDown() || forceClick)
     {
-#ifdef __WXMSW__
         SetFocus();
-#endif
 
         m_lineBeforeLastClicked = m_lineLastClicked;
         m_lineLastClicked = current;
@@ -1682,10 +3545,9 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
             if ( IsSingleSel() || !IsRowSelected(current) )
             {
                 SelectAllRows( false );
-
                 ChangeCurrentRow(current);
-
                 SelectRow(m_currentRow,true);
+                SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
             }
             else // multi sel & current is highlighted & no mod keys
             {
@@ -1698,8 +3560,8 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
             if (cmdModifierDown)
             {
                 ChangeCurrentRow(current);
-
                 ReverseRowSelection(m_currentRow);
+                SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
             }
             else if (event.ShiftDown())
             {
@@ -1715,6 +3577,7 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
                 }
 
                 SelectRows(lineFrom, lineTo, true);
+                SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
             }
             else // !ctrl, !shift
             {
@@ -1731,7 +3594,8 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
         // Update selection here...
         m_currentCol = col;
 
-        m_lastOnSame = !forceClick && ((col == oldCurrentCol) && (current == oldCurrentRow)) && oldWasSelected;
+        m_lastOnSame = !forceClick && ((col == oldCurrentCol) &&
+                        (current == oldCurrentRow)) && oldWasSelected;
     }
 }
 
@@ -1755,9 +3619,18 @@ void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
     event.Skip();
 }
 
+wxDataViewItem wxDataViewMainWindow::GetSelection() const
+{
+    if( m_selection.GetCount() != 1 )
+        return wxDataViewItem();
+
+    return GetItemByRow( m_selection.Item(0));
+}
+
 //-----------------------------------------------------------------------------
 // wxDataViewCtrl
 //-----------------------------------------------------------------------------
+WX_DEFINE_LIST(wxDataViewColumnList);
 
 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
 
@@ -1780,7 +3653,8 @@ 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))
+    if (!wxControl::Create( parent, id, pos, size,
+                            style | wxScrolledWindowStyle|wxSUNKEN_BORDER, validator))
         return false;
 
     Init();
@@ -1790,16 +3664,17 @@ bool wxDataViewCtrl::Create(wxWindow *parent, wxWindowID id,
 #endif
 
     m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
-#ifdef __WXMSW__
-    m_headerArea = new wxDataViewHeaderWindow( this, wxID_ANY, wxDefaultPosition, wxSize(wxDefaultCoord,22) );
-#else
-    m_headerArea = new wxDataViewHeaderWindow( this, wxID_ANY, wxDefaultPosition, wxSize(wxDefaultCoord,25) );
-#endif
+
+    if (HasFlag(wxDV_NO_HEADER))
+        m_headerArea = NULL;
+    else
+        m_headerArea = new wxDataViewHeaderWindow( this, wxID_ANY );
 
     SetTargetWindow( m_clientArea );
 
     wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
-    sizer->Add( m_headerArea, 0, wxGROW );
+    if (m_headerArea)
+        sizer->Add( m_headerArea, 0, wxGROW );
     sizer->Add( m_clientArea, 1, wxGROW );
     SetSizer( sizer );
 
@@ -1839,15 +3714,17 @@ void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
     AdjustScrollbars();
 }
 
-bool wxDataViewCtrl::AssociateModel( wxDataViewListModel *model )
+bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
 {
     if (!wxDataViewCtrlBase::AssociateModel( model ))
         return false;
 
-    m_notifier = new wxGenericDataViewListModelNotifier( m_clientArea );
+    m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );
 
     model->AddNotifier( m_notifier );
 
+    m_clientArea->BuildTree(model);
+
     m_clientArea->UpdateDisplay();
 
     return true;
@@ -1858,53 +3735,307 @@ bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
     if (!wxDataViewCtrlBase::AppendColumn(col))
         return false;
 
+    m_cols.Append( col );
+    OnColumnChange();
+    return true;
+}
+
+void wxDataViewCtrl::OnColumnChange()
+{
+    if (m_headerArea)
+        m_headerArea->UpdateDisplay();
+
+    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 pos ) const
+{
+    wxDataViewColumnList::const_iterator iter;
+    int i = 0;
+    for (iter = m_cols.begin(); iter!=m_cols.end(); iter++)
+    {
+        if (i == pos)
+            return *iter;
+
+        if ((*iter)->IsHidden())
+            continue;
+        i ++;
+    }
+    return NULL;
+}
+
+bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
+{
+    wxDataViewColumnList::compatibility_iterator  ret = m_cols.Find( column );
+    if (ret == NULL)
+        return false;
 
+    m_cols.Erase(ret);
+    delete column;
+    OnColumnChange();
+
+    return true;
+}
+
+bool wxDataViewCtrl::ClearColumns()
+{
+    m_cols.clear();
+    OnColumnChange();
     return true;
 }
 
-void wxDataViewCtrl::SetSelection( int WXUNUSED(row) )
+int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
+{
+    int ret = 0, dead = 0;
+    int len = GetColumnCount();
+    for (int i=0; i<len; i++)
+    {
+        wxDataViewColumn * col = GetColumn(i);
+        if (col->IsHidden())
+            continue;
+        ret += col->GetWidth();
+        if (column==col)
+        {
+            CalcScrolledPosition( ret, dead, &ret, &dead );
+            break;
+        }
+    }
+    return ret;
+}
+
+wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
+{
+    return NULL;
+}
+
+//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 )
 {
-    // FIXME - TODO
+    wxDataViewSelection selection(wxDataViewSelectionCmp) ;
+    int len = sel.GetCount();
+    for( int i = 0; i < len; i ++ )
+    {
+        int row = m_clientArea->GetRowByItem( sel[i] );
+        if( row >= 0 )
+            selection.Add( static_cast<unsigned int>(row) );
+    }
+    m_clientArea->SetSelections( selection );
+}
+
+void wxDataViewCtrl::Select( const wxDataViewItem & 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 )
+{
+    int row = m_clientArea->GetRowByItem( item );
+    if( row >= 0 )
+        m_clientArea->SelectRow(row, false);
+}
+
+bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
+{
+    int row = m_clientArea->GetRowByItem( item );
+    if( row >= 0 )
+    {
+        return m_clientArea->IsRowSelected(row);
+    }
+    return false;
 }
 
-void wxDataViewCtrl::SetSelectionRange( unsigned int WXUNUSED(from), unsigned int WXUNUSED(to) )
+//Selection code with row number as parameter
+int wxDataViewCtrl::GetSelections( wxArrayInt & sel ) const
 {
-    // FIXME - TODO
+    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& WXUNUSED(aSelections) )
+void wxDataViewCtrl::SetSelections( const wxArrayInt & sel )
 {
-    // FIXME - TODO
+    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;
 }
 
-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 > 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 )
+{
+    int row = m_clientArea->GetRowByItem(item);
+    if( row >= 0 )
+    {
+        if( column == NULL )
+            EnsureVisible(row, -1);
+        else
+        {
+            int col = 0;
+            int len = GetColumnCount();
+            for( int i = 0; i < len; i ++ )
+                if( GetColumn(i) == column )
+                {
+                    col = i;
+                    break;
+                }
+            EnsureVisible( row, col );
+        }
+    }
+
+}
+
+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);
+}
+
+ #endif
     // !wxUSE_GENERICDATAVIEWCTRL
 
 #endif