disable report view mode under Mac as it hangs the native wxListCtrl implementation...

[wxWidgets.git] / include / wx / generic / dataview.h

diff --git a/include/wx/generic/dataview.h b/include/wx/generic/dataview.h
index d16295a0a5c5db2bfd3b0d434382a0bbf61d77e4..f3c6057cbae39742a085d0e770bfbca8d784ac90 100644 (file)
--- a/include/wx/generic/dataview.h
+++ b/include/wx/generic/dataview.h
@@ -2,6 +2,7 @@
 // Name:        wx/generic/dataview.h
 // Purpose:     wxDataViewCtrl generic implementation header
 // Author:      Robert Roebling
 // Name:        wx/generic/dataview.h
 // Purpose:     wxDataViewCtrl generic implementation header
 // Author:      Robert Roebling

+// Modified By: Bo Yang

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


@@ -21,9 +22,9 @@
 // classes
 // ---------------------------------------------------------
 
 // classes
 // ---------------------------------------------------------
 

-class WXDLLIMPEXP_ADV wxDataViewCtrl;
-class WXDLLIMPEXP_ADV wxDataViewMainWindow;
-class WXDLLIMPEXP_ADV wxDataViewHeaderWindow;
+class WXDLLIMPEXP_FWD_ADV wxDataViewCtrl;
+class WXDLLIMPEXP_FWD_ADV wxDataViewMainWindow;
+class WXDLLIMPEXP_FWD_ADV wxDataViewHeaderWindow;

 
 // ---------------------------------------------------------
 // wxDataViewRenderer
 
 // ---------------------------------------------------------
 // wxDataViewRenderer


@@ -32,42 +33,66 @@ class WXDLLIMPEXP_ADV wxDataViewHeaderWindow;
 class WXDLLIMPEXP_ADV wxDataViewRenderer: public wxDataViewRendererBase
 {
 public:
 class WXDLLIMPEXP_ADV wxDataViewRenderer: public wxDataViewRendererBase
 {
 public:

-    wxDataViewRenderer( const wxString &varianttype, wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT );
+    wxDataViewRenderer( const wxString &varianttype, 
+                        wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
+                        int align = wxDVR_DEFAULT_ALIGNMENT );

     virtual ~wxDataViewRenderer();
 
     virtual bool Render( wxRect cell, wxDC *dc, int state ) = 0;
     virtual ~wxDataViewRenderer();
 
     virtual bool Render( wxRect cell, wxDC *dc, int state ) = 0;

-    virtual wxSize GetSize() = 0;
+    virtual wxSize GetSize() const = 0;
+
+    virtual void SetAlignment( int align );
+    virtual int GetAlignment() const;
+
+    virtual void SetMode( wxDataViewCellMode mode )
+        { m_mode=mode; }
+    virtual wxDataViewCellMode GetMode() const
+        { return m_mode; }

 
     virtual bool Activate( wxRect WXUNUSED(cell),
 
     virtual bool Activate( wxRect WXUNUSED(cell),

-                           wxDataViewListModel *WXUNUSED(model),
-                           unsigned int WXUNUSED(col),
-                           unsigned int WXUNUSED(row) )
+                           wxDataViewModel *WXUNUSED(model),
+                           const wxDataViewItem & WXUNUSED(item), 
+                           unsigned int WXUNUSED(col) )

                            { return false; }
 
     virtual bool LeftClick( wxPoint WXUNUSED(cursor),
                             wxRect WXUNUSED(cell),
                            { return false; }
 
     virtual bool LeftClick( wxPoint WXUNUSED(cursor),
                             wxRect WXUNUSED(cell),

-                            wxDataViewListModel *WXUNUSED(model),
-                            unsigned int WXUNUSED(col),
-                            unsigned int WXUNUSED(row) )
+                            wxDataViewModel *WXUNUSED(model),
+                            const wxDataViewItem & WXUNUSED(item), 
+                            unsigned int WXUNUSED(col) )

                             { return false; }
     virtual bool RightClick( wxPoint WXUNUSED(cursor),
                              wxRect WXUNUSED(cell),
                             { return false; }
     virtual bool RightClick( wxPoint WXUNUSED(cursor),
                              wxRect WXUNUSED(cell),

-                             wxDataViewListModel *WXUNUSED(model),
-                             unsigned int WXUNUSED(col),
-                             unsigned int WXUNUSED(row) )
+                             wxDataViewModel *WXUNUSED(model),
+                             const wxDataViewItem & WXUNUSED(item), 
+                             unsigned int WXUNUSED(col) )

                              { return false; }
     virtual bool StartDrag( wxPoint WXUNUSED(cursor),
                             wxRect WXUNUSED(cell),
                              { return false; }
     virtual bool StartDrag( wxPoint WXUNUSED(cursor),
                             wxRect WXUNUSED(cell),

-                            wxDataViewListModel *WXUNUSED(model),
-                            unsigned int WXUNUSED(col),
-                            unsigned int WXUNUSED(row) )
+                            wxDataViewModel *WXUNUSED(model),
+                            const wxDataViewItem & WXUNUSED(item), 
+                            unsigned int WXUNUSED(col) )

                             { return false; }
 
     // Create DC on request
     virtual wxDC *GetDC();
                             { return false; }
 
     // Create DC on request
     virtual wxDC *GetDC();

+    
+    void SetHasAttr( bool set )  { m_hasAttr = set; }
+    void SetAttr( const wxDataViewItemAttr &attr ) { m_attr = attr; }
+    bool GetWantsAttr() { return m_wantsAttr; }
+
+    // implementation
+    int CalculateAlignment() const;

 
 private:
 
 private:

-    wxDC        *m_dc;
+    wxDC                        *m_dc;
+    int                          m_align;
+    wxDataViewCellMode           m_mode;
+    
+protected:
+    bool                         m_wantsAttr;
+    bool                         m_hasAttr;
+    wxDataViewItemAttr           m_attr;

 
 protected:
     DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewRenderer)
 
 protected:
     DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewRenderer)


@@ -81,12 +106,16 @@ class WXDLLIMPEXP_ADV wxDataViewCustomRenderer: public wxDataViewRenderer
 {
 public:
     wxDataViewCustomRenderer( const wxString &varianttype = wxT("string"),
 {
 public:
     wxDataViewCustomRenderer( const wxString &varianttype = wxT("string"),

-                              wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT );
+                              wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
+                              int align = wxDVR_DEFAULT_ALIGNMENT );
+
+    void RenderText( const wxString &text, int xoffset, wxRect cell, wxDC *dc, int state );

 
 protected:
     DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewCustomRenderer)
 };
 
 
 protected:
     DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewCustomRenderer)
 };
 

+

 // ---------------------------------------------------------
 // wxDataViewTextRenderer
 // ---------------------------------------------------------
 // ---------------------------------------------------------
 // wxDataViewTextRenderer
 // ---------------------------------------------------------


@@ -95,21 +124,44 @@ class WXDLLIMPEXP_ADV wxDataViewTextRenderer: public wxDataViewCustomRenderer
 {
 public:
     wxDataViewTextRenderer( const wxString &varianttype = wxT("string"),
 {
 public:
     wxDataViewTextRenderer( const wxString &varianttype = wxT("string"),

-                            wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT );
+                            wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
+                            int align = wxDVR_DEFAULT_ALIGNMENT );

 
     bool SetValue( const wxVariant &value );
 
     bool SetValue( const wxVariant &value );

-    bool GetValue( wxVariant &value );
+    bool GetValue( wxVariant &value ) const;

 
     bool Render( wxRect cell, wxDC *dc, int state );
 
     bool Render( wxRect cell, wxDC *dc, int state );

-    wxSize GetSize();
+    wxSize GetSize() const;

 
 

-private:
-    wxString m_text;
+    // in-place editing
+    virtual bool HasEditorCtrl();
+    virtual wxControl* CreateEditorCtrl( wxWindow *parent, wxRect labelRect, const wxVariant &value );
+    virtual bool GetValueFromEditorCtrl( wxControl* editor, wxVariant &value );
+        
+protected:
+    wxString   m_text;

 
 protected:
     DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewTextRenderer)
 };
 
 
 protected:
     DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewTextRenderer)
 };
 

+// ---------------------------------------------------------
+// wxDataViewTextRendererAttr
+// ---------------------------------------------------------
+
+class WXDLLIMPEXP_ADV wxDataViewTextRendererAttr: public wxDataViewTextRenderer
+{
+public:
+    wxDataViewTextRendererAttr( const wxString &varianttype = wxT("string"),
+                            wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
+                            int align = wxDVR_DEFAULT_ALIGNMENT );
+
+    bool Render( wxRect cell, wxDC *dc, int state );
+        
+protected:
+    DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewTextRendererAttr)
+};
+

 // ---------------------------------------------------------
 // wxDataViewBitmapRenderer
 // ---------------------------------------------------------
 // ---------------------------------------------------------
 // wxDataViewBitmapRenderer
 // ---------------------------------------------------------


@@ -118,13 +170,14 @@ class WXDLLIMPEXP_ADV wxDataViewBitmapRenderer: public wxDataViewCustomRenderer
 {
 public:
     wxDataViewBitmapRenderer( const wxString &varianttype = wxT("wxBitmap"),
 {
 public:
     wxDataViewBitmapRenderer( const wxString &varianttype = wxT("wxBitmap"),

-                              wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT );
+                              wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
+                              int align = wxDVR_DEFAULT_ALIGNMENT );

 
     bool SetValue( const wxVariant &value );
 
     bool SetValue( const wxVariant &value );

-    bool GetValue( wxVariant &value );
+    bool GetValue( wxVariant &value ) const;

 
     bool Render( wxRect cell, wxDC *dc, int state );
 
     bool Render( wxRect cell, wxDC *dc, int state );

-    wxSize GetSize();
+    wxSize GetSize() const;

 
 private:
     wxIcon m_icon;
 
 private:
     wxIcon m_icon;


@@ -142,14 +195,16 @@ class WXDLLIMPEXP_ADV wxDataViewToggleRenderer: public wxDataViewCustomRenderer
 {
 public:
     wxDataViewToggleRenderer( const wxString &varianttype = wxT("bool"),
 {
 public:
     wxDataViewToggleRenderer( const wxString &varianttype = wxT("bool"),

-                              wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT );
+                              wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
+                              int align = wxDVR_DEFAULT_ALIGNMENT );

 
     bool SetValue( const wxVariant &value );
 
     bool SetValue( const wxVariant &value );

-    bool GetValue( wxVariant &value );
+    bool GetValue( wxVariant &value ) const;

 
     bool Render( wxRect cell, wxDC *dc, int state );
 
     bool Render( wxRect cell, wxDC *dc, int state );

-    bool Activate( wxRect cell, wxDataViewListModel *model, unsigned int col, unsigned int row );
-    wxSize GetSize();
+    bool Activate( wxRect cell, wxDataViewModel *model, const wxDataViewItem & item, 
+                            unsigned int col );
+    wxSize GetSize() const;

 
 private:
     bool    m_toggle;
 
 private:
     bool    m_toggle;


@@ -167,13 +222,15 @@ class WXDLLIMPEXP_ADV wxDataViewProgressRenderer: public wxDataViewCustomRendere
 public:
     wxDataViewProgressRenderer( const wxString &label = wxEmptyString,
                                 const wxString &varianttype = wxT("long"),
 public:
     wxDataViewProgressRenderer( const wxString &label = wxEmptyString,
                                 const wxString &varianttype = wxT("long"),

-                                wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT );
+                                wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
+                                int align = wxDVR_DEFAULT_ALIGNMENT );

     virtual ~wxDataViewProgressRenderer();
 
     bool SetValue( const wxVariant &value );
     virtual ~wxDataViewProgressRenderer();
 
     bool SetValue( const wxVariant &value );

+    bool GetValue( wxVariant& value ) const;

 
     virtual bool Render( wxRect cell, wxDC *dc, int state );
 
     virtual bool Render( wxRect cell, wxDC *dc, int state );

-    virtual wxSize GetSize();
+    virtual wxSize GetSize() const;

 
 private:
     wxString    m_label;
 
 private:
     wxString    m_label;


@@ -182,6 +239,35 @@ private:
 protected:
     DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewProgressRenderer)
 };
 protected:
     DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewProgressRenderer)
 };

+    
+// --------------------------------------------------------- 
+// wxDataViewIconTextRenderer
+// --------------------------------------------------------- 
+
+class WXDLLIMPEXP_ADV wxDataViewIconTextRenderer: public wxDataViewCustomRenderer
+{
+public:
+    wxDataViewIconTextRenderer( const wxString &varianttype = wxT("wxDataViewIconText"), 
+                                wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
+                                int align = wxDVR_DEFAULT_ALIGNMENT );
+    virtual ~wxDataViewIconTextRenderer();
+    
+    bool SetValue( const wxVariant &value );
+    bool GetValue( wxVariant &value ) const;
+    
+    virtual bool Render( wxRect cell, wxDC *dc, int state );
+    virtual wxSize GetSize() const;
+    
+    virtual bool HasEditorCtrl() { return true; }
+    virtual wxControl* CreateEditorCtrl( wxWindow *parent, wxRect labelRect, const wxVariant &value );
+    virtual bool GetValueFromEditorCtrl( wxControl* editor, wxVariant &value );
+    
+private:
+    wxDataViewIconText   m_value;
+    
+protected:
+    DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewIconTextRenderer)
+};

 
 // ---------------------------------------------------------
 // wxDataViewDateRenderer
 
 // ---------------------------------------------------------
 // wxDataViewDateRenderer


@@ -191,14 +277,16 @@ class WXDLLIMPEXP_ADV wxDataViewDateRenderer: public wxDataViewCustomRenderer
 {
 public:
     wxDataViewDateRenderer( const wxString &varianttype = wxT("datetime"),
 {
 public:
     wxDataViewDateRenderer( const wxString &varianttype = wxT("datetime"),

-                            wxDataViewCellMode mode = wxDATAVIEW_CELL_ACTIVATABLE );
+                            wxDataViewCellMode mode = wxDATAVIEW_CELL_ACTIVATABLE,
+                            int align = wxDVR_DEFAULT_ALIGNMENT );

 
     bool SetValue( const wxVariant &value );
 
     bool SetValue( const wxVariant &value );

+    bool GetValue( wxVariant& value ) const;

 
     virtual bool Render( wxRect cell, wxDC *dc, int state );
 
     virtual bool Render( wxRect cell, wxDC *dc, int state );

-    virtual wxSize GetSize();
+    virtual wxSize GetSize() const;

     virtual bool Activate( wxRect cell,
     virtual bool Activate( wxRect cell,

-                           wxDataViewListModel *model, unsigned int col, unsigned int row );
+                           wxDataViewModel *model, const wxDataViewItem & item, unsigned int col );

 
 private:
     wxDateTime    m_date;
 
 private:
     wxDateTime    m_date;


@@ -213,18 +301,70 @@ protected:
 
 class WXDLLIMPEXP_ADV wxDataViewColumn: public wxDataViewColumnBase
 {
 
 class WXDLLIMPEXP_ADV wxDataViewColumn: public wxDataViewColumnBase
 {

+    friend class wxDataViewHeaderWindowBase;
+    friend class wxDataViewHeaderWindow;
+    friend class wxDataViewHeaderWindowMSW;
+

 public:
 public:

-    wxDataViewColumn( const wxString &title, wxDataViewRenderer *renderer, unsigned int model_column, 
-        int width = 80, int flags = wxDATAVIEW_COL_RESIZABLE );
+    wxDataViewColumn( const wxString &title, wxDataViewRenderer *renderer, 
+                      unsigned int model_column, int width = wxDVC_DEFAULT_WIDTH, 
+                      wxAlignment align = wxALIGN_CENTER,
+                      int flags = wxDATAVIEW_COL_RESIZABLE );
+    wxDataViewColumn( const wxBitmap &bitmap, wxDataViewRenderer *renderer, 
+                      unsigned int model_column, int width = wxDVC_DEFAULT_WIDTH, 
+                      wxAlignment align = wxALIGN_CENTER,
+                      int flags = wxDATAVIEW_COL_RESIZABLE );

     virtual ~wxDataViewColumn();
 
     virtual ~wxDataViewColumn();
 

-    virtual void SetTitle( const wxString &title );
-
-    virtual int GetWidth();
+    // setters:
+
+    virtual void SetTitle( const wxString &title )
+        { m_title=title; }
+    virtual void SetAlignment( wxAlignment align )
+        { m_align=align; }
+    virtual void SetMinWidth( int minWidth )
+        { m_minWidth=minWidth; }
+    virtual void SetWidth( int width );
+    virtual void SetSortable( bool sortable );
+    virtual void SetResizeable( bool resizeable );
+    virtual void SetHidden( bool hidden );
+    virtual void SetSortOrder( bool ascending );
+    virtual void SetReorderable( bool reorderable );
+
+    // getters:
+
+    virtual wxString GetTitle() const
+        { return m_title; }
+    virtual wxAlignment GetAlignment() const
+        { return m_align; }
+    virtual int GetWidth() const
+        { return m_width; }
+    virtual int GetMinWidth() const
+        { return m_minWidth; }
+    virtual bool IsSortable() const
+        { return (m_flags & wxDATAVIEW_COL_SORTABLE) != 0; }
+    virtual bool IsResizeable() const
+        { return (m_flags & wxDATAVIEW_COL_RESIZABLE) != 0; }
+    virtual bool IsHidden() const
+        { return (m_flags & wxDATAVIEW_COL_HIDDEN) != 0; }
+    virtual bool IsSortOrderAscending() const;
+    virtual bool IsReorderable() const
+        { return (m_flags & wxDATAVIEW_COL_REORDERABLE) != 0; }

 
 private:
     int                      m_width;
 
 private:
     int                      m_width;

-    int                      m_fixedWidth;
+    int                      m_minWidth;
+    int                      m_flags;
+    wxAlignment              m_align;
+    wxString                 m_title;
+    bool                     m_ascending;
+    bool                     m_autosize;
+
+    void Init(int width);
+
+    // like SetWidth() but does not ask the header window of the
+    // wxDataViewCtrl to reflect the width-change.
+    void SetInternalWidth(int width);

 
 protected:
     DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewColumn)
 
 protected:
     DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewColumn)


@@ -234,12 +374,23 @@ protected:
 // wxDataViewCtrl
 // ---------------------------------------------------------
 
 // wxDataViewCtrl
 // ---------------------------------------------------------
 

+WX_DECLARE_LIST_WITH_DECL(wxDataViewColumn, wxDataViewColumnList,
+                          class WXDLLIMPEXP_ADV);
+

 class WXDLLIMPEXP_ADV wxDataViewCtrl: public wxDataViewCtrlBase,
                                        public wxScrollHelperNative
 {
 class WXDLLIMPEXP_ADV wxDataViewCtrl: public wxDataViewCtrlBase,
                                        public wxScrollHelperNative
 {

+    friend class wxDataViewMainWindow;
+    friend class wxDataViewHeaderWindowBase;
+    friend class wxDataViewHeaderWindow;
+    friend class wxDataViewHeaderWindowMSW;
+    friend class wxDataViewColumn;
+

 public:
     wxDataViewCtrl() : wxScrollHelperNative(this)
     {
 public:
     wxDataViewCtrl() : wxScrollHelperNative(this)
     {

+        //No sorting column at start, I think
+        m_sortingColumn = NULL;

         Init();
     }
 
         Init();
     }
 


@@ -249,6 +400,7 @@ public:
            const wxValidator& validator = wxDefaultValidator )
              : wxScrollHelperNative(this)
     {
            const wxValidator& validator = wxDefaultValidator )
              : wxScrollHelperNative(this)
     {

+        m_sortingColumn = NULL;

         Create(parent, id, pos, size, style, validator );
     }
 
         Create(parent, id, pos, size, style, validator );
     }
 


@@ -261,23 +413,80 @@ public:
            const wxSize& size = wxDefaultSize, long style = 0,
            const wxValidator& validator = wxDefaultValidator );
 
            const wxSize& size = wxDefaultSize, long style = 0,
            const wxValidator& validator = wxDefaultValidator );
 

-    virtual bool AssociateModel( wxDataViewListModel *model );
+    virtual bool AssociateModel( wxDataViewModel *model );
+    

     virtual bool AppendColumn( wxDataViewColumn *col );
     virtual bool AppendColumn( wxDataViewColumn *col );

+    virtual bool PrependColumn( wxDataViewColumn *col );
+    virtual bool InsertColumn( unsigned int pos, wxDataViewColumn *col );

 
 

-    virtual void SetSelection( int row ); // -1 for unselect
-    virtual void SetSelectionRange( unsigned int from, unsigned int to );
-    virtual void SetSelections( const wxArrayInt& aSelections);
+    virtual void DoSetExpanderColumn();
+    virtual void DoSetIndent();
+
+    virtual unsigned int GetColumnCount() const;
+    virtual wxDataViewColumn* GetColumn( unsigned int pos ) const;
+    virtual bool DeleteColumn( wxDataViewColumn *column );
+    virtual bool ClearColumns();
+    virtual int GetColumnPosition( const wxDataViewColumn *column ) const;
+
+    virtual wxDataViewColumn *GetSortingColumn() const;

     
     

-    virtual bool IsSelected( unsigned int row ) const;
-    virtual int GetSelection() const;
-    virtual int GetSelections(wxArrayInt& aSelections) const;
+    virtual wxDataViewItem GetSelection() const;
+    virtual int GetSelections( wxDataViewItemArray & sel ) const;
+    virtual void SetSelections( const wxDataViewItemArray & sel );
+    virtual void Select( const wxDataViewItem & item );
+    virtual void Unselect( const wxDataViewItem & item );
+    virtual bool IsSelected( const wxDataViewItem & item ) const;
+
+    virtual void SelectAll();
+    virtual void UnselectAll();
+
+    virtual void EnsureVisible( const wxDataViewItem & item,
+                                const wxDataViewColumn *column = NULL );
+    virtual void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column ) const;
+    virtual wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn *column = NULL ) const;
+
+    virtual void Expand( const wxDataViewItem & item );
+    virtual void Collapse( const wxDataViewItem & item );
+
+protected:
+    virtual int GetSelections( wxArrayInt & sel ) const; 
+    virtual void SetSelections( const wxArrayInt & sel );
+    virtual void Select( int row );
+    virtual void Unselect( int row );
+    virtual bool IsSelected( int row ) const;
+    virtual void SelectRange( int from, int to );
+    virtual void UnselectRange( int from, int to );
+
+    virtual void EnsureVisible( int row, int column );
+
+    virtual wxDataViewItem GetItemByRow( unsigned int row ) const;
+    virtual int GetRowByItem( const wxDataViewItem & item ) const;
+
+    wxDataViewColumn* GetSortingColumn() { return m_sortingColumn; }
+    void SetSortingColumn( wxDataViewColumn* column ) { m_sortingColumn = column; }
+
+public:     // utility functions not part of the API
+
+    // returns the "best" width for the idx-th column
+    unsigned int GetBestColumnWidth(int WXUNUSED(idx)) const
+    {
+        return GetClientSize().GetWidth() / GetColumnCount();
+    }
+
+    // called by header window after reorder
+    void ColumnMoved( wxDataViewColumn* col, unsigned int new_pos );
+
+    // updates the header window after a change in a column setting
+    void OnColumnChange();
+
+    wxWindow *GetMainWindow() { return (wxWindow*) m_clientArea; }

 
 private:
 
 private:

-    friend class wxDataViewMainWindow;
-    friend class wxDataViewHeaderWindow;
-    wxDataViewListModelNotifier *m_notifier;
-    wxDataViewMainWindow        *m_clientArea;
-    wxDataViewHeaderWindow      *m_headerArea;
+    wxDataViewColumnList      m_cols;
+    wxDataViewModelNotifier  *m_notifier;
+    wxDataViewMainWindow     *m_clientArea;
+    wxDataViewHeaderWindow   *m_headerArea;
+    wxDataViewColumn         *m_sortingColumn;

 
 private:
     void OnSize( wxSizeEvent &event );
 
 private:
     void OnSize( wxSizeEvent &event );