Make a couple virtuals protected so they can be overridden.

[wxWidgets.git] / samples / dataview / dataview.cpp

diff --git a/samples/dataview/dataview.cpp b/samples/dataview/dataview.cpp
index fda36625998db8c7c3e5a3d474b6736f2012001a..857992884d39d4e6060bf2c970d2b6ec82d3d720 100644 (file)
--- a/samples/dataview/dataview.cpp
+++ b/samples/dataview/dataview.cpp
@@ -6,9 +6,13 @@
 // Created:     06/01/06
 // RCS-ID:      $Id$
 // Copyright:   (c) Robert Roebling
 // Created:     06/01/06
 // RCS-ID:      $Id$
 // Copyright:   (c) Robert Roebling

-// Licence:     wxWindows license
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

+// ============================================================================
+// declarations
+// ============================================================================
+

 // For compilers that support precompilation, includes "wx/wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx/wx.h".
 #include "wx/wxprec.h"
 


@@ -24,1073 +28,1048 @@
 #include "wx/datetime.h"
 #include "wx/splitter.h"
 #include "wx/aboutdlg.h"
 #include "wx/datetime.h"
 #include "wx/splitter.h"
 #include "wx/aboutdlg.h"

+#include "wx/colordlg.h"

 #include "wx/choicdlg.h"
 #include "wx/numdlg.h"
 #include "wx/spinctrl.h"
 #include "wx/imaglist.h"
 #include "wx/choicdlg.h"
 #include "wx/numdlg.h"
 #include "wx/spinctrl.h"
 #include "wx/imaglist.h"

+#include "wx/notebook.h"

 
 

-#ifndef __WXMSW__
-    #include "../sample.xpm"
-#endif
-
-#include "null.xpm"
-
-/* XPM */
-static const char *small1_xpm[] = {
-/* columns rows colors chars-per-pixel */
-"16 16 6 1",
-". c Black",
-"o c #FFFFFF",
-"X c #000080",
-"O c #FFFF00",
-"  c None",
-"+ c #FF0000",
-/* pixels */
-"                ",
-"                ",
-"                ",
-"    .......     ",
-"    .XXXXX.     ",
-"    .oXXXX.     ",
-"    .oXXX.......",
-".....oXXX.OOOOO.",
-".+++.XXXX.oOOOO.",
-".o++......oOOOO.",
-".o++++.  .oOOOO.",
-".o++++.  .OOOOO.",
-".+++++.  .......",
-".......         ",
-"                ",
-"                "
-};
-
+#include "mymodels.h"

 
 

-// -------------------------------------
-// MyMusicModel
-// -------------------------------------
-
-/*
-Implement this data model
-            Title               Artist               Year        Judgement
---------------------------------------------------------------------------
-1: My Music:
-    2:  Pop music
-        3:  You are not alone   Michael Jackson      1995        good
-        4:  Take a bow          Madonna              1994        good
-    5:  Classical music
-        6:  Ninth Symphony      Ludwig v. Beethoven  1824        good
-        7:  German Requiem      Johannes Brahms      1868        good
-*/
+// ----------------------------------------------------------------------------
+// resources
+// ----------------------------------------------------------------------------

 
 

+#ifndef wxHAS_IMAGES_IN_RESOURCES
+    #include "../sample.xpm"
+#endif

 
 

+#include "wx_small.xpm"

 
 

-class MyMusicModelNode;
-WX_DEFINE_ARRAY_PTR( MyMusicModelNode*, MyMusicModelNodes );
+// ----------------------------------------------------------------------------
+// MyApp
+// ----------------------------------------------------------------------------

 
 

-class MyMusicModelNode
+class MyApp: public wxApp

 {
 public:
 {
 public:

-    MyMusicModelNode( MyMusicModelNode* parent,
-                      const wxString &title, const wxString &artist, int year )
-    {
-        m_parent = parent;
-        m_title = title;
-        m_artist = artist;
-        m_year = year;
-        m_quality = "good";
-        m_isContainer = false;
-    }
-
-    MyMusicModelNode( MyMusicModelNode* parent,
-                      const wxString &branch )
-    {
-        m_parent = parent;
-        m_title = branch;
-        m_year = -1;
-        m_isContainer = true;
-    }
-
-    ~MyMusicModelNode()
-    {
-        size_t count = m_children.GetCount();
-        size_t i;
-        for (i = 0; i < count; i++)
-        {
-            MyMusicModelNode *child = m_children[i];
-            delete child;
-        }
-    }
-
-    bool IsContainer()                                    { return m_isContainer; }
-
-    MyMusicModelNode* GetParent()                         { return m_parent; }
-    MyMusicModelNodes &GetChildren()                      { return m_children; }
-    MyMusicModelNode* GetNthChild( unsigned int n )       { return m_children.Item( n ); }
-    void Insert( MyMusicModelNode* child, unsigned int n) { m_children.Insert( child, n); }
-    void Append( MyMusicModelNode* child )                { m_children.Add( child ); }
-    unsigned int GetChildCount()                          { return m_children.GetCount(); }
-
-public:
-    wxString            m_title;
-    wxString            m_artist;
-    int                 m_year;
-    wxString            m_quality;
-
-private:
-    MyMusicModelNode   *m_parent;
-    MyMusicModelNodes   m_children;
-    bool                m_isContainer;
+    virtual bool OnInit();

 };
 
 };
 

+// ----------------------------------------------------------------------------
+// MyFrame
+// ----------------------------------------------------------------------------

 
 

-class MyMusicModel: public wxDataViewModel
+class MyFrame : public wxFrame

 {
 public:
 {
 public:

+    MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int h);
+    ~MyFrame();

 
 

-    // constructor
-
-    MyMusicModel()
-    {
-        m_root = new MyMusicModelNode( NULL, wxT("My Music" ));
-        m_pop = new MyMusicModelNode( m_root, wxT("Pop music") );
-        m_root->Append( m_pop );
-        m_pop->Append( new MyMusicModelNode( m_pop,
-            wxT("You are not alone"), wxT("Michael Jackson"), 1995 ) );
-        m_pop->Append( new MyMusicModelNode( m_pop,
-            wxT("Take a bow"), wxT("Madonna"), 1994 ) );
-        m_classical = new MyMusicModelNode( m_root, wxT("Classical music") );
-        m_root->Append( m_classical );
-        m_ninth = new MyMusicModelNode( m_classical,
-            wxT("Ninth symphony"), wxT("Ludwig van Beethoven"), 1824 );
-        m_classical->Append( m_ninth );
-        m_classical->Append( new MyMusicModelNode( m_classical,
-            wxT("German Requiem"), wxT("Johannes Brahms"), 1868 ) );
-        m_classicalMusicIsKnownToControl = false;
-    }
-
-    ~MyMusicModel()
-    {
-        delete m_root;
-    }
-
-    // helper method for wxLog
-
-    wxString GetTitle( const wxDataViewItem &item ) const
-    {
-        MyMusicModelNode *node = (MyMusicModelNode*) item.GetID();
-        if (!node)
-            return wxEmptyString;
-
-        return node->m_title;
-    }
-
-    int GetYear( const wxDataViewItem &item ) const
-    {
-        MyMusicModelNode *node = (MyMusicModelNode*) item.GetID();
-        if (!node)
-            return 2000;
-
-        return node->m_year;
-    }
-
-    // helper methods to change the model
-
-    void AddToClassical( const wxString &title, const wxString &artist, int year )
-    {
-        // add to data
-        MyMusicModelNode *child_node =
-            new MyMusicModelNode( m_classical, title, artist, year );
-
-        m_classical->Append( child_node );
-
-        if (m_classicalMusicIsKnownToControl)
-        {
-            // notify control
-            wxDataViewItem child( (void*) child_node );
-            wxDataViewItem parent( (void*) m_classical );
-            ItemAdded( parent, child );
-        }
-    }
-
-    void Delete( const wxDataViewItem &item )
-    {
-        MyMusicModelNode *node = (MyMusicModelNode*) item.GetID();
-        wxDataViewItem parent( node->GetParent() );
-
-        node->GetParent()->GetChildren().Remove( node );
-        delete node;
-
-        // notify control
-        ItemDeleted( parent, item );
-    }
-
-    // override sorting to always sort branches ascendingly
+    void BuildDataViewCtrl(wxPanel* parent,
+                           unsigned int nPanel,
+                           unsigned long style = 0);

 
 

-    int Compare( const wxDataViewItem &item1, const wxDataViewItem &item2,
-                 unsigned int column, bool ascending )
-    {
-        if (IsContainer(item1) && IsContainer(item2))
-        {
-            wxVariant value1,value2;
-            GetValue( value1, item1, 0 );
-            GetValue( value2, item2, 0 );
+private:
+    // event handlers
+    void OnStyleChange(wxCommandEvent& event);
+    void OnSetBackgroundColour(wxCommandEvent& event);
+    void OnSetForegroundColour(wxCommandEvent& event);
+    void OnQuit(wxCommandEvent& event);
+    void OnAbout(wxCommandEvent& event);

 
 

-            wxString str1 = value1.GetString();
-            wxString str2 = value2.GetString();
-            int res = str1.Cmp( str2 );
-            if (res) return res;
+    void OnClearLog(wxCommandEvent& event);
+    void OnPageChanged(wxBookCtrlEvent& event);

 
 

-            // items must be different
-            wxUIntPtr litem1 = (wxUIntPtr) item1.GetID();
-            wxUIntPtr litem2 = (wxUIntPtr) item2.GetID();
+    void OnAddMozart(wxCommandEvent& event);
+    void OnDeleteSelected(wxCommandEvent& event);
+    void OnDeleteYear(wxCommandEvent& event);
+    void OnSelectNinth(wxCommandEvent& event);
+    void OnCollapse(wxCommandEvent& event);
+    void OnExpand(wxCommandEvent& event);
+    void OnShowCurrent(wxCommandEvent& event);
+    void OnSetNinthCurrent(wxCommandEvent& event);

 
 

-            return litem1-litem2;
-        }
+    void OnPrependList(wxCommandEvent& event);
+    void OnDeleteList(wxCommandEvent& event);
+    // Fourth page.
+    void OnDeleteTreeItem(wxCommandEvent& event);
+    void OnDeleteAllTreeItems(wxCommandEvent& event);
+    void OnAddTreeItem(wxCommandEvent& event);
+    void OnAddTreeContainerItem(wxCommandEvent& event);

 
 

-        return wxDataViewModel::Compare( item1, item2, column, ascending );
-    }
+    void OnValueChanged( wxDataViewEvent &event );

 
 

-    // implementation of base class virtuals to define model
+    void OnActivated( wxDataViewEvent &event );
+    void OnExpanding( wxDataViewEvent &event );
+    void OnExpanded( wxDataViewEvent &event );
+    void OnCollapsing( wxDataViewEvent &event );
+    void OnCollapsed( wxDataViewEvent &event );
+    void OnSelectionChanged( wxDataViewEvent &event );

 
 

-    virtual unsigned int GetColumnCount() const
-    {
-        return 6;
-    }
+    void OnStartEditing( wxDataViewEvent &event );
+    void OnEditingStarted( wxDataViewEvent &event );
+    void OnEditingDone( wxDataViewEvent &event );

 
 

-    virtual wxString GetColumnType( unsigned int col ) const
-    {
-        if (col == 2)
-            return wxT("long");
+    void OnHeaderClick( wxDataViewEvent &event );
+    void OnAttrHeaderClick( wxDataViewEvent &event );
+    void OnHeaderRightClick( wxDataViewEvent &event );
+    void OnSorted( wxDataViewEvent &event );

 
 

-        return wxT("string");
-    }
+    void OnContextMenu( wxDataViewEvent &event );

 
 

-    virtual void GetValue( wxVariant &variant,
-                           const wxDataViewItem &item, unsigned int col ) const
-    {
-        MyMusicModelNode *node = (MyMusicModelNode*) item.GetID();
-        switch (col)
-        {
-            case 0: variant = node->m_title; break;
-            case 1: variant = node->m_artist; break;
-            case 2: variant = (long) node->m_year; break;
-            case 3: variant = node->m_quality; break;
-            case 4:
-               // wxMac doesn't conceal the popularity progress renderer, return 0 for containers
-               if (IsContainer(item))
-                  variant = (long) 0;
-               else
-                  variant = (long) 80;  // all music is very 80% popular
-               break;
-            case 5:
-               // Make size of red square depend on year
-               if (GetYear(item) < 1900)
-                  variant = (long) 35;
-               else
-                  variant = (long) 25;
-               break;
-            default:
-            {
-                wxLogError( wxT("MyMusicModel::GetValue: wrong column %d"), col );
-
-                // provoke a crash when mouse button down
-                wxMouseState state = wxGetMouseState();
-                if (state.ShiftDown())
-                {
-                    char *crash = 0;
-                    *crash = 0;
-                }
-            }
-        }
-    }
+    void OnGoto( wxCommandEvent &event);
+    void OnAddMany( wxCommandEvent &event);
+    void OnHideAttributes( wxCommandEvent &event);
+    void OnShowAttributes( wxCommandEvent &event);

 
 

-    virtual bool SetValue( const wxVariant &variant,
-                           const wxDataViewItem &item, unsigned int col )
-    {
-        MyMusicModelNode *node = (MyMusicModelNode*) item.GetID();
-        switch (col)
-        {
-            case 0: node->m_title = variant.GetString(); return true;
-            case 1: node->m_artist  = variant.GetString(); return true;
-            case 2: node->m_year  = variant.GetLong(); return true;
-            case 3: node->m_quality  = variant.GetString(); return true;
-            default: wxLogError( wxT("MyMusicModel::SetValue: wrong column") );
-        }
-        return false;
-    }
+#if wxUSE_DRAG_AND_DROP
+    void OnBeginDrag( wxDataViewEvent &event );
+    void OnDropPossible( wxDataViewEvent &event );
+    void OnDrop( wxDataViewEvent &event );
+#endif // wxUSE_DRAG_AND_DROP

 
 

-    virtual wxDataViewItem GetParent( const wxDataViewItem &item ) const
-    {
-        // the invisble root node has no parent
-        if (!item.IsOk())
-            return wxDataViewItem(0);
+    void OnDataViewChar(wxKeyEvent& event);

 
 

-        MyMusicModelNode *node = (MyMusicModelNode*) item.GetID();
+    // helper used by both OnDeleteSelected() and OnDataViewChar()
+    void DeleteSelectedItems();

 
 

-        // "MyMusic" also has no parent
-        if (node == m_root)
-            return wxDataViewItem(0);

 
 

-        return wxDataViewItem( (void*) node->GetParent() );
-    }
+    wxNotebook* m_notebook;

 
 

-    virtual bool IsContainer( const wxDataViewItem &item ) const
-    {
-        // the invisble root node can have children (in
-        // our model always "MyMusic")
-        if (!item.IsOk())
-            return true;
+    // the controls stored in the various tabs of the main notebook:

 
 

-        MyMusicModelNode *node = (MyMusicModelNode*) item.GetID();
-        return node->IsContainer();
-    }
+    wxDataViewCtrl* m_ctrl[4];

 
 

-    virtual unsigned int GetChildren( const wxDataViewItem &parent, wxDataViewItemArray &array ) const
-    {
-        MyMusicModelNode *node = (MyMusicModelNode*) parent.GetID();
-        if (!node)
-        {
-            array.Add( wxDataViewItem( (void*) m_root ) );
-            return 1;
-        }
+    // the models associated with the first two DVC:

 
 

-        if (node == m_classical)
-        {
-            MyMusicModel *model = (MyMusicModel*)(const MyMusicModel*) this;
-            model->m_classicalMusicIsKnownToControl = true;
-        }
+    wxObjectDataPtr<MyMusicTreeModel> m_music_model;
+    wxObjectDataPtr<MyListModel> m_list_model;

 
 

-        if (node->GetChildCount() == 0)
-        {
-            return 0;
-        }
+    // other data:

 
 

-        unsigned int count = node->GetChildren().GetCount();
-        unsigned int pos;
-        for (pos = 0; pos < count; pos++)
-        {
-            MyMusicModelNode *child = node->GetChildren().Item( pos );
-            array.Add( wxDataViewItem( (void*) child ) );
-        }
-        return count;
-    }
+    wxDataViewColumn* m_col;
+    wxDataViewColumn* m_attributes;

 
 

-    wxDataViewItem GetNinthItem()
-    {
-       return wxDataViewItem( m_ninth );
-    }
+    wxTextCtrl* m_log;
+    wxLog *m_logOld;

 
 private:
 
 private:

-    MyMusicModelNode*   m_root;
-    MyMusicModelNode*   m_pop;
-    MyMusicModelNode*   m_classical;
-    MyMusicModelNode*   m_ninth;
-    bool                m_classicalMusicIsKnownToControl;
+    DECLARE_EVENT_TABLE()

 };
 
 
 };
 
 

-static int my_sort_reverse( int *v1, int *v2 )
-{
-   return *v2-*v1;
-}
-
-static int my_sort( int *v1, int *v2 )
-{
-   return *v1-*v2;
-}
-
-class MyListModel: public wxDataViewVirtualListModel
-{
-public:
-    MyListModel() :
-#ifdef __WXMAC__
-        wxDataViewVirtualListModel( 1000 + 100 )
-#else
-        wxDataViewVirtualListModel( 100000 + 100 )
-#endif
-    {
-#ifdef __WXMAC__
-        m_virtualItems = 1000;
-#else
-        m_virtualItems = 100000;
-#endif
-
-        unsigned int i;
-        for (i = 0; i < 100; i++)
-        {
-            wxString str;
-            str.Printf( wxT("row number %d"), i );
-            m_array.Add( str );
-        }
-
-        m_icon = wxIcon( null_xpm );
-    }
-
-    // helper methods to change the model
-
-    void Prepend( const wxString &text )
-    {
-        m_array.Insert( text, 0 );
-        RowPrepended();
-    }
-
-    void DeleteItem( const wxDataViewItem &item )
-    {
-        unsigned int row = GetRow( item );
-        if (row >= m_array.GetCount())
-           return;
-
-        m_array.RemoveAt( row );
-        RowDeleted( row );
-    }
-
-    void DeleteItems( const wxDataViewItemArray &items )
-    {
-        wxArrayInt rows;
-        unsigned int i;
-        for (i = 0; i < items.GetCount(); i++)
-        {
-            unsigned int row = GetRow( items[i] );
-            if (row < m_array.GetCount())
-                rows.Add( row );
-        }
-
-        // Sort in descending order so that the last
-        // row will be deleted first. Otherwise the
-        // remaining indeces would all be wrong.
-        rows.Sort( my_sort_reverse );
-        for (i = 0; i < rows.GetCount(); i++)
-            m_array.RemoveAt( rows[i] );
-
-        // This is just to test if wxDataViewCtrl can
-        // cope with removing rows not sorted in
-        // descending order
-        rows.Sort( my_sort );
-        RowsDeleted( rows );
-    }
-
-    void AddMany()
-    {
-        m_virtualItems += 1000;
-        Reset( m_array.GetCount() + m_virtualItems );
-    }
-
-    // implementation of base class virtuals to define model
-
-    virtual unsigned int GetColumnCount() const
-    {
-        return 3;
-    }
-
-    virtual wxString GetColumnType( unsigned int col ) const
-    {
-        if (col == 1)
-            return wxT("wxDataViewIconText");
-
-        return wxT("string");
-    }
-
-    virtual unsigned int GetRowCount()
-    {
-        return m_array.GetCount();
-    }
-
-    virtual void GetValueByRow( wxVariant &variant,
-                           unsigned int row, unsigned int col ) const
-    {
-        if (col==0)
-        {
-            if (row >= m_array.GetCount())
-            {
-                wxString str;
-                str.Printf(wxT("row %d"), row - m_array.GetCount() );
-                variant = str;
-            }
-            else
-            {
-                variant = m_array[ row ];
-            }
-        } else
-        if (col==1)
-        {
-            wxDataViewIconText data( wxT("test"), m_icon );
-            variant << data;
-        } else
-        if (col==2)
-        {
-            if (row >= m_array.GetCount())
-                variant = wxT("plain");
-            else
-                variant = wxT("blue");
-        }
-    }
-
-    virtual bool GetAttrByRow( unsigned int row, unsigned int col, wxDataViewItemAttr &attr )
-    {
-        if (col != 2)
-            return false;
-
-        if (row < m_array.GetCount())
-        {
-            attr.SetColour( *wxBLUE );
-            attr.SetItalic( true );
-        }
-
-        return true;
-    }
-
-    virtual bool SetValueByRow( const wxVariant &variant,
-                           unsigned int row, unsigned int col )
-    {
-        if (col == 0)
-        {
-            if (row >= m_array.GetCount())
-               return false;
-
-            m_array[row] = variant.GetString();
-            return true;
-        }
-
-        return false;
-    }
-
-    wxArrayString    m_array;
-    wxIcon           m_icon;
-    int              m_virtualItems;
-};
-
-// -------------------------------------
+// ----------------------------------------------------------------------------

 // MyCustomRenderer
 // MyCustomRenderer

-// -------------------------------------
+// ----------------------------------------------------------------------------

 
 class MyCustomRenderer: public wxDataViewCustomRenderer
 {
 public:
 
 class MyCustomRenderer: public wxDataViewCustomRenderer
 {
 public:

-    MyCustomRenderer( wxDataViewCellMode mode, int alignment ) :
-       wxDataViewCustomRenderer( wxString("long"), mode, alignment )
-       { m_height = 25; }
+    MyCustomRenderer()
+        : wxDataViewCustomRenderer("string",
+                                   wxDATAVIEW_CELL_ACTIVATABLE,
+                                   wxALIGN_CENTER)
+       { }

 
 

-    virtual bool Render( wxRect rect, wxDC *dc, int WXUNUSED(state) )
+    virtual bool Render( wxRect rect, wxDC *dc, int state )

     {
     {

-        dc->SetBrush( *wxRED_BRUSH );
+        dc->SetBrush( *wxLIGHT_GREY_BRUSH );

         dc->SetPen( *wxTRANSPARENT_PEN );
         dc->SetPen( *wxTRANSPARENT_PEN );

-        dc->DrawRectangle( rect );
-        return true;
-    }

 
 

+        rect.Deflate(2);
+        dc->DrawRoundedRectangle( rect, 5 );

 
 

-    virtual bool Activate( wxRect WXUNUSED(cell),
-                           wxDataViewModel *WXUNUSED(model), const wxDataViewItem &WXUNUSED(item), unsigned int WXUNUSED(col) )
-    {
-        wxLogMessage( wxT("MyCustomRenderer Activate()") );
-        return false;
+        RenderText(m_value,
+                   0, // no offset
+                   wxRect(dc->GetTextExtent(m_value)).CentreIn(rect),
+                   dc,
+                   state);
+        return true;

     }
 
     }
 

-    virtual bool LeftClick( wxPoint cursor, wxRect WXUNUSED(cell),
-                           wxDataViewModel *WXUNUSED(model), const wxDataViewItem &WXUNUSED(item), unsigned int WXUNUSED(col) )
+    virtual bool ActivateCell(const wxRect& WXUNUSED(cell),
+                              wxDataViewModel *WXUNUSED(model),
+                              const wxDataViewItem &WXUNUSED(item),
+                              unsigned int WXUNUSED(col),
+                              const wxMouseEvent *mouseEvent)

     {
     {

-        wxLogMessage( wxT("MyCustomRenderer LeftClick( %d, %d )"), cursor.x, cursor.y );
+        wxString position;
+        if ( mouseEvent )
+            position = wxString::Format("via mouse at %d, %d", mouseEvent->m_x, mouseEvent->m_y);
+        else
+            position = "from keyboard";
+        wxLogMessage("MyCustomRenderer ActivateCell() %s", position);

         return false;
     }
 
     virtual wxSize GetSize() const
     {
         return false;
     }
 
     virtual wxSize GetSize() const
     {

-        //return wxSize(60,m_height);

         return wxSize(60,20);
     }
 
     virtual bool SetValue( const wxVariant &value )
     {
         return wxSize(60,20);
     }
 
     virtual bool SetValue( const wxVariant &value )
     {

-        m_height = value;
+        m_value = value.GetString();

         return true;
     }
 
     virtual bool GetValue( wxVariant &WXUNUSED(value) ) const { return true; }
 
 private:
         return true;
     }
 
     virtual bool GetValue( wxVariant &WXUNUSED(value) ) const { return true; }
 
 private:

-    long m_height;
+    wxString m_value;

 };
 
 };
 

-// -------------------------------------
-// MyApp
-// -------------------------------------
-
-class MyApp: public wxApp
-{
-public:
-    bool OnInit(void);
-    int OnExit();
-};
-
-// -------------------------------------
-// MyFrame
-// -------------------------------------
-
-class MyFrame : public wxFrame
-{
-public:
-    MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int h);
-    ~MyFrame();
-
-public:
-    void OnQuit(wxCommandEvent& event);
-    void OnAbout(wxCommandEvent& event);
-
-    void OnAddMozart(wxCommandEvent& event);
-    void OnDeleteMusic(wxCommandEvent& event);
-    void OnDeleteYear(wxCommandEvent& event);
-    void OnSelectNinth(wxCommandEvent& event);
-
-    void OnPrependList(wxCommandEvent& event);
-    void OnDeleteList(wxCommandEvent& event);

 
 

-    void OnValueChanged( wxDataViewEvent &event );
+// ============================================================================
+// implementation
+// ============================================================================

 
 

-    void OnActivated( wxDataViewEvent &event );
-    void OnExpanding( wxDataViewEvent &event );
-    void OnExpanded( wxDataViewEvent &event );
-    void OnCollapsing( wxDataViewEvent &event );
-    void OnCollapsed( wxDataViewEvent &event );
-    void OnSelectionChanged( wxDataViewEvent &event );
-
-    void OnEditingStarted( wxDataViewEvent &event );
-    void OnEditingDone( wxDataViewEvent &event );
-
-    void OnHeaderClick( wxDataViewEvent &event );
-    void OnHeaderRightClick( wxDataViewEvent &event );
-    void OnSorted( wxDataViewEvent &event );
-
-    void OnContextMenu( wxDataViewEvent &event );
-
-    void OnRightClick( wxMouseEvent &event );
-    void OnGoto( wxCommandEvent &event);
-    void OnAddMany( wxCommandEvent &event);
-
-    void OnBeginDrag( wxDataViewEvent &event );
-    void OnDropPossible( wxDataViewEvent &event );
-    void OnDrop( wxDataViewEvent &event );
-
-private:
-    wxDataViewCtrl* m_musicCtrl;
-    wxObjectDataPtr<MyMusicModel> m_music_model;
-
-    wxDataViewCtrl* m_listCtrl;
-    wxObjectDataPtr<MyListModel> m_list_model;
-
-    wxDataViewColumn * m_col;
-
-    wxTextCtrl    * m_log;
-    wxLog *m_logOld;
-
-private:
-    DECLARE_EVENT_TABLE()
-};
-
-// -------------------------------------
+// ----------------------------------------------------------------------------

 // MyApp
 // MyApp

-// -------------------------------------
+// ----------------------------------------------------------------------------

 
 IMPLEMENT_APP(MyApp)
 
 
 IMPLEMENT_APP(MyApp)
 

-bool MyApp::OnInit(void)
+bool MyApp::OnInit()

 {
     if ( !wxApp::OnInit() )
         return false;
 
 {
     if ( !wxApp::OnInit() )
         return false;
 

-    // build the first frame

     MyFrame *frame =
     MyFrame *frame =

-        new MyFrame(NULL, wxT("wxDataViewCtrl feature test"), 40, 40, 1000, 540);
-    frame->Show(true);
+        new MyFrame(NULL, "wxDataViewCtrl sample", 40, 40, 1000, 540);

 
 

-    SetTopWindow(frame);
+    frame->Show(true);

     return true;
 }
 
     return true;
 }
 

-int MyApp::OnExit()
-{
-    return 0;
-}

 
 

-
-// -------------------------------------
+// ----------------------------------------------------------------------------

 // MyFrame
 // MyFrame

-// -------------------------------------
+// ----------------------------------------------------------------------------

 
 enum
 {
 
 enum
 {

+    ID_CLEARLOG = wxID_HIGHEST+1,
+    ID_BACKGROUND_COLOUR,
+    ID_FOREGROUND_COLOUR,
+    ID_STYLE_MENU,
+

     // file menu
     // file menu

-    ID_ABOUT = wxID_ABOUT,
+    //ID_SINGLE,        wxDV_SINGLE==0 so it's always present
+    ID_MULTIPLE,
+    ID_ROW_LINES,
+    ID_HORIZ_RULES,
+    ID_VERT_RULES,
+

     ID_EXIT = wxID_EXIT,
 
     ID_EXIT = wxID_EXIT,
 

+    // about menu
+    ID_ABOUT = wxID_ABOUT,
+
+
+    // control IDs
+

     ID_MUSIC_CTRL       = 50,
     ID_MUSIC_CTRL       = 50,

+    ID_ATTR_CTRL        = 51,

 
     ID_ADD_MOZART       = 100,
 
     ID_ADD_MOZART       = 100,

-    ID_DELETE_MUSIC     = 101,
+    ID_DELETE_SEL       = 101,

     ID_DELETE_YEAR      = 102,
     ID_SELECT_NINTH     = 103,
     ID_DELETE_YEAR      = 102,
     ID_SELECT_NINTH     = 103,

+    ID_COLLAPSE         = 104,
+    ID_EXPAND           = 105,
+    ID_SHOW_CURRENT,
+    ID_SET_NINTH_CURRENT,

 
     ID_PREPEND_LIST     = 200,
     ID_DELETE_LIST      = 201,
     ID_GOTO             = 202,
 
     ID_PREPEND_LIST     = 200,
     ID_DELETE_LIST      = 201,
     ID_GOTO             = 202,

-    ID_ADD_MANY         = 203
+    ID_ADD_MANY         = 203,
+    ID_HIDE_ATTRIBUTES  = 204,
+    ID_SHOW_ATTRIBUTES  = 205,
+
+    // Fourth page.
+    ID_DELETE_TREE_ITEM = 400,
+    ID_DELETE_ALL_TREE_ITEMS = 401,
+    ID_ADD_TREE_ITEM = 402,
+    ID_ADD_TREE_CONTAINER_ITEM = 403

 };
 
 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 };
 
 BEGIN_EVENT_TABLE(MyFrame, wxFrame)

-    EVT_MENU( ID_ABOUT, MyFrame::OnAbout )
+    EVT_MENU_RANGE( ID_MULTIPLE, ID_VERT_RULES, MyFrame::OnStyleChange )

     EVT_MENU( ID_EXIT, MyFrame::OnQuit )
     EVT_MENU( ID_EXIT, MyFrame::OnQuit )

+    EVT_MENU( ID_ABOUT, MyFrame::OnAbout )
+    EVT_MENU( ID_CLEARLOG, MyFrame::OnClearLog )
+
+    EVT_MENU( ID_FOREGROUND_COLOUR, MyFrame::OnSetForegroundColour )
+    EVT_MENU( ID_BACKGROUND_COLOUR, MyFrame::OnSetBackgroundColour )
+
+    EVT_NOTEBOOK_PAGE_CHANGED( wxID_ANY, MyFrame::OnPageChanged )
+

     EVT_BUTTON( ID_ADD_MOZART, MyFrame::OnAddMozart )
     EVT_BUTTON( ID_ADD_MOZART, MyFrame::OnAddMozart )

-    EVT_BUTTON( ID_DELETE_MUSIC, MyFrame::OnDeleteMusic )
+    EVT_BUTTON( ID_DELETE_SEL, MyFrame::OnDeleteSelected )

     EVT_BUTTON( ID_DELETE_YEAR, MyFrame::OnDeleteYear )
     EVT_BUTTON( ID_SELECT_NINTH, MyFrame::OnSelectNinth )
     EVT_BUTTON( ID_DELETE_YEAR, MyFrame::OnDeleteYear )
     EVT_BUTTON( ID_SELECT_NINTH, MyFrame::OnSelectNinth )

+    EVT_BUTTON( ID_COLLAPSE, MyFrame::OnCollapse )
+    EVT_BUTTON( ID_EXPAND, MyFrame::OnExpand )
+    EVT_BUTTON( ID_SHOW_CURRENT, MyFrame::OnShowCurrent )
+    EVT_BUTTON( ID_SET_NINTH_CURRENT, MyFrame::OnSetNinthCurrent )
+

     EVT_BUTTON( ID_PREPEND_LIST, MyFrame::OnPrependList )
     EVT_BUTTON( ID_DELETE_LIST, MyFrame::OnDeleteList )
     EVT_BUTTON( ID_GOTO, MyFrame::OnGoto)
     EVT_BUTTON( ID_ADD_MANY, MyFrame::OnAddMany)
     EVT_BUTTON( ID_PREPEND_LIST, MyFrame::OnPrependList )
     EVT_BUTTON( ID_DELETE_LIST, MyFrame::OnDeleteList )
     EVT_BUTTON( ID_GOTO, MyFrame::OnGoto)
     EVT_BUTTON( ID_ADD_MANY, MyFrame::OnAddMany)

+    EVT_BUTTON( ID_HIDE_ATTRIBUTES, MyFrame::OnHideAttributes)
+    EVT_BUTTON( ID_SHOW_ATTRIBUTES, MyFrame::OnShowAttributes)
+    // Fourth page.
+    EVT_BUTTON( ID_DELETE_TREE_ITEM, MyFrame::OnDeleteTreeItem )
+    EVT_BUTTON( ID_DELETE_ALL_TREE_ITEMS, MyFrame::OnDeleteAllTreeItems )
+    EVT_BUTTON( ID_ADD_TREE_ITEM, MyFrame::OnAddTreeItem )
+    EVT_BUTTON( ID_ADD_TREE_CONTAINER_ITEM, MyFrame::OnAddTreeContainerItem )

 
     EVT_DATAVIEW_ITEM_VALUE_CHANGED( ID_MUSIC_CTRL, MyFrame::OnValueChanged )
 
 
     EVT_DATAVIEW_ITEM_VALUE_CHANGED( ID_MUSIC_CTRL, MyFrame::OnValueChanged )
 

-    EVT_DATAVIEW_ITEM_ACTIVATED(ID_MUSIC_CTRL, MyFrame::OnActivated )
-    EVT_DATAVIEW_ITEM_EXPANDING(ID_MUSIC_CTRL, MyFrame::OnExpanding)
-    EVT_DATAVIEW_ITEM_EXPANDED(ID_MUSIC_CTRL, MyFrame::OnExpanded)
-    EVT_DATAVIEW_ITEM_COLLAPSING(ID_MUSIC_CTRL, MyFrame::OnCollapsing)
-    EVT_DATAVIEW_ITEM_COLLAPSED(ID_MUSIC_CTRL, MyFrame::OnCollapsed)
-    EVT_DATAVIEW_SELECTION_CHANGED(ID_MUSIC_CTRL, MyFrame::OnSelectionChanged)
+    EVT_DATAVIEW_ITEM_ACTIVATED(ID_MUSIC_CTRL, MyFrame::OnActivated )
+    EVT_DATAVIEW_ITEM_EXPANDING(ID_MUSIC_CTRL, MyFrame::OnExpanding)
+    EVT_DATAVIEW_ITEM_EXPANDED(ID_MUSIC_CTRL, MyFrame::OnExpanded)
+    EVT_DATAVIEW_ITEM_COLLAPSING(ID_MUSIC_CTRL, MyFrame::OnCollapsing)
+    EVT_DATAVIEW_ITEM_COLLAPSED(ID_MUSIC_CTRL, MyFrame::OnCollapsed)
+    EVT_DATAVIEW_SELECTION_CHANGED(ID_MUSIC_CTRL, MyFrame::OnSelectionChanged)
+
+    EVT_DATAVIEW_ITEM_START_EDITING(ID_MUSIC_CTRL, MyFrame::OnStartEditing)
+    EVT_DATAVIEW_ITEM_EDITING_STARTED(ID_MUSIC_CTRL, MyFrame::OnEditingStarted)
+    EVT_DATAVIEW_ITEM_EDITING_DONE(ID_MUSIC_CTRL, MyFrame::OnEditingDone)
+
+    EVT_DATAVIEW_COLUMN_HEADER_CLICK(ID_MUSIC_CTRL, MyFrame::OnHeaderClick)
+    EVT_DATAVIEW_COLUMN_HEADER_RIGHT_CLICKED(ID_MUSIC_CTRL, MyFrame::OnHeaderRightClick)
+    EVT_DATAVIEW_COLUMN_SORTED(ID_MUSIC_CTRL, MyFrame::OnSorted)
+
+    EVT_DATAVIEW_ITEM_CONTEXT_MENU(ID_MUSIC_CTRL, MyFrame::OnContextMenu)
+
+#if wxUSE_DRAG_AND_DROP
+    EVT_DATAVIEW_ITEM_BEGIN_DRAG( ID_MUSIC_CTRL, MyFrame::OnBeginDrag )
+    EVT_DATAVIEW_ITEM_DROP_POSSIBLE( ID_MUSIC_CTRL, MyFrame::OnDropPossible )
+    EVT_DATAVIEW_ITEM_DROP( ID_MUSIC_CTRL, MyFrame::OnDrop )
+#endif // wxUSE_DRAG_AND_DROP
+
+    EVT_DATAVIEW_COLUMN_HEADER_CLICK(ID_ATTR_CTRL, MyFrame::OnAttrHeaderClick)
+
+END_EVENT_TABLE()
+
+MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int h):
+  wxFrame(frame, wxID_ANY, title, wxPoint(x, y), wxSize(w, h))
+{
+    m_log = NULL;
+    m_col = NULL;
+
+    m_ctrl[0] = NULL;
+    m_ctrl[1] = NULL;
+    m_ctrl[2] = NULL;
+    m_ctrl[3] = NULL;
+
+    SetIcon(wxICON(sample));
+
+
+    // build the menus
+    // ----------------
+
+    wxMenu *style_menu = new wxMenu;
+    //style_menu->AppendCheckItem(ID_SINGLE, "Single selection"));
+    style_menu->AppendCheckItem(ID_MULTIPLE, "Multiple selection");
+    style_menu->AppendCheckItem(ID_ROW_LINES, "Alternating colours");
+    style_menu->AppendCheckItem(ID_HORIZ_RULES, "Display horizontal rules");
+    style_menu->AppendCheckItem(ID_VERT_RULES, "Display vertical rules");
+
+    wxMenu *file_menu = new wxMenu;
+    file_menu->Append(ID_CLEARLOG, "&Clear log\tCtrl-L");
+    file_menu->Append(ID_FOREGROUND_COLOUR, "Set &foreground colour...\tCtrl-S");
+    file_menu->Append(ID_BACKGROUND_COLOUR, "Set &background colour...\tCtrl-B");
+    file_menu->Append(ID_STYLE_MENU, "&Style", style_menu);
+    file_menu->AppendSeparator();
+    file_menu->Append(ID_EXIT, "E&xit");
+
+    wxMenu *about_menu = new wxMenu;
+    about_menu->Append(ID_ABOUT, "&About");
+
+    wxMenuBar *menu_bar = new wxMenuBar;
+    menu_bar->Append(file_menu, "&File");
+    menu_bar->Append(about_menu, "&About");
+
+    SetMenuBar(menu_bar);
+    CreateStatusBar();
+
+
+    // redirect logs from our event handlers to text control
+    m_log = new wxTextCtrl( this, wxID_ANY, wxString(), wxDefaultPosition,
+                            wxDefaultSize, wxTE_MULTILINE );
+    m_log->SetMinSize(wxSize(-1, 100));
+    m_logOld = wxLog::SetActiveTarget(new wxLogTextCtrl(m_log));
+    wxLogMessage( "This is the log window" );
+
+
+    // first page of the notebook
+    // --------------------------
+
+    m_notebook = new wxNotebook( this, wxID_ANY );
+
+    wxPanel *firstPanel = new wxPanel( m_notebook, wxID_ANY );
+
+    BuildDataViewCtrl(firstPanel, 0);    // sets m_ctrl[0]
+
+    const wxSizerFlags border = wxSizerFlags().DoubleBorder();
+
+    wxBoxSizer *button_sizer = new wxBoxSizer( wxHORIZONTAL );
+    button_sizer->Add( new wxButton( firstPanel, ID_ADD_MOZART,  "Add Mozart"),             border );
+    button_sizer->Add( new wxButton( firstPanel, ID_DELETE_SEL,  "Delete selected"),        border );
+    button_sizer->Add( new wxButton( firstPanel, ID_DELETE_YEAR, "Delete \"Year\" column"), border );
+    button_sizer->Add( new wxButton( firstPanel, ID_SELECT_NINTH,"Select ninth symphony"),  border );
+    button_sizer->Add( new wxButton( firstPanel, ID_COLLAPSE,    "Collapse"),               border );
+    button_sizer->Add( new wxButton( firstPanel, ID_EXPAND,      "Expand"),                 border );
+
+    wxBoxSizer *sizerCurrent = new wxBoxSizer(wxHORIZONTAL);
+    sizerCurrent->Add(new wxButton(firstPanel, ID_SHOW_CURRENT,
+                                   "&Show current"), border);
+    sizerCurrent->Add(new wxButton(firstPanel, ID_SET_NINTH_CURRENT,
+                                   "Make &ninth symphony current"), border);
+
+    wxSizer *firstPanelSz = new wxBoxSizer( wxVERTICAL );
+    m_ctrl[0]->SetMinSize(wxSize(-1, 200));
+    firstPanelSz->Add(m_ctrl[0], 1, wxGROW|wxALL, 5);
+    firstPanelSz->Add(
+        new wxStaticText(firstPanel, wxID_ANY, "Most of the cells above are editable!"),
+        0, wxGROW|wxALL, 5);
+    firstPanelSz->Add(button_sizer);
+    firstPanelSz->Add(sizerCurrent);
+    firstPanel->SetSizerAndFit(firstPanelSz);
+
+
+    // second page of the notebook
+    // ---------------------------
+
+    wxPanel *secondPanel = new wxPanel( m_notebook, wxID_ANY );
+
+    BuildDataViewCtrl(secondPanel, 1);    // sets m_ctrl[1]
+
+    wxBoxSizer *button_sizer2 = new wxBoxSizer( wxHORIZONTAL );
+    button_sizer2->Add( new wxButton( secondPanel, ID_PREPEND_LIST,"Prepend"),                0, wxALL, 10 );
+    button_sizer2->Add( new wxButton( secondPanel, ID_DELETE_LIST, "Delete selected"),        0, wxALL, 10 );
+    button_sizer2->Add( new wxButton( secondPanel, ID_GOTO,        "Goto 50"),                0, wxALL, 10 );
+    button_sizer2->Add( new wxButton( secondPanel, ID_ADD_MANY,    "Add 1000"),               0, wxALL, 10 );
+    button_sizer2->Add( new wxButton( secondPanel, ID_HIDE_ATTRIBUTES,    "Hide attributes"), 0, wxALL, 10 );
+    button_sizer2->Add( new wxButton( secondPanel, ID_SHOW_ATTRIBUTES,    "Show attributes"), 0, wxALL, 10 );
+
+    wxSizer *secondPanelSz = new wxBoxSizer( wxVERTICAL );
+    secondPanelSz->Add(m_ctrl[1], 1, wxGROW|wxALL, 5);
+    secondPanelSz->Add(button_sizer2);
+    secondPanel->SetSizerAndFit(secondPanelSz);

 
 

-    EVT_DATAVIEW_ITEM_EDITING_STARTED(ID_MUSIC_CTRL, MyFrame::OnEditingStarted)
-    EVT_DATAVIEW_ITEM_EDITING_DONE(ID_MUSIC_CTRL, MyFrame::OnEditingDone)

 
 

-    EVT_DATAVIEW_COLUMN_HEADER_CLICK(ID_MUSIC_CTRL, MyFrame::OnHeaderClick)
-    EVT_DATAVIEW_COLUMN_HEADER_RIGHT_CLICKED(ID_MUSIC_CTRL, MyFrame::OnHeaderRightClick)
-    EVT_DATAVIEW_COLUMN_SORTED(ID_MUSIC_CTRL, MyFrame::OnSorted)
+    // third page of the notebook
+    // ---------------------------

 
 

-    EVT_DATAVIEW_ITEM_CONTEXT_MENU(ID_MUSIC_CTRL, MyFrame::OnContextMenu)
+    wxPanel *thirdPanel = new wxPanel( m_notebook, wxID_ANY );

 
 

-    EVT_DATAVIEW_ITEM_BEGIN_DRAG( ID_MUSIC_CTRL, MyFrame::OnBeginDrag )
-    EVT_DATAVIEW_ITEM_DROP_POSSIBLE( ID_MUSIC_CTRL, MyFrame::OnDropPossible )
-    EVT_DATAVIEW_ITEM_DROP( ID_MUSIC_CTRL, MyFrame::OnDrop )
+    BuildDataViewCtrl(thirdPanel, 2);    // sets m_ctrl[2]

 
 

-    EVT_RIGHT_UP(MyFrame::OnRightClick)
-END_EVENT_TABLE()
+    wxSizer *thirdPanelSz = new wxBoxSizer( wxVERTICAL );
+    thirdPanelSz->Add(m_ctrl[2], 1, wxGROW|wxALL, 5);
+    thirdPanel->SetSizerAndFit(thirdPanelSz);

 
 

-MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int h):
-  wxFrame(frame, wxID_ANY, title, wxPoint(x, y), wxSize(w, h))
-{
-    m_log = NULL;
-    m_col = NULL;

 
 

-    SetIcon(wxICON(sample));
+    // fourth page of the notebook
+    // ---------------------------

 
 

-    // build the menus:
+    wxPanel *fourthPanel = new wxPanel( m_notebook, wxID_ANY );

 
 

-    wxMenu *file_menu = new wxMenu;
-    file_menu->Append(ID_ABOUT, wxT("&About"));
-    file_menu->AppendSeparator();
-    file_menu->Append(ID_EXIT, wxT("E&xit"));
+    BuildDataViewCtrl(fourthPanel, 3);    // sets m_ctrl[3]
+    // Buttons
+    wxBoxSizer *button_sizer4 = new wxBoxSizer( wxHORIZONTAL );
+    button_sizer4->Add( new wxButton( fourthPanel, ID_DELETE_TREE_ITEM, "Delete Selected"), 0, wxALL, 10 );
+    button_sizer4->Add( new wxButton( fourthPanel, ID_DELETE_ALL_TREE_ITEMS, "Delete All"), 0, wxALL, 10 );
+    button_sizer4->Add( new wxButton( fourthPanel, ID_ADD_TREE_ITEM, "Add Item"), 0, wxALL, 10 );
+    button_sizer4->Add( new wxButton( fourthPanel, ID_ADD_TREE_CONTAINER_ITEM, "Add Container"), 0, wxALL, 10 );

 
 

-    wxMenuBar *menu_bar = new wxMenuBar;
-    menu_bar->Append(file_menu, wxT("&File"));
+    wxSizer *fourthPanelSz = new wxBoxSizer( wxVERTICAL );
+    fourthPanelSz->Add(m_ctrl[3], 1, wxGROW|wxALL, 5);
+    fourthPanelSz->Add(button_sizer4);
+    fourthPanel->SetSizerAndFit(fourthPanelSz);

 
 

-    SetMenuBar(menu_bar);
-    CreateStatusBar();

 
 

-    wxPanel *panel = new wxPanel( this, -1 );

 
 

-    wxBoxSizer *main_sizer = new wxBoxSizer( wxVERTICAL );
+    // complete GUI
+    // ------------

 
 

-    wxBoxSizer *data_sizer = new wxBoxSizer( wxHORIZONTAL );
+    m_notebook->AddPage(firstPanel, "MyMusicTreeModel");
+    m_notebook->AddPage(secondPanel, "MyListModel");
+    m_notebook->AddPage(thirdPanel, "wxDataViewListCtrl");
+    m_notebook->AddPage(fourthPanel, "wxDataViewTreeCtrl");

 
 

-    // MyMusic
+    wxSizer* mainSizer = new wxBoxSizer(wxVERTICAL);

 
 

-    m_musicCtrl = new wxDataViewCtrl( panel, ID_MUSIC_CTRL, wxDefaultPosition,
-                                    wxSize(400,200), wxDV_MULTIPLE|wxDV_VARIABLE_LINE_HEIGHT );
+    mainSizer->Add( m_notebook, 1, wxGROW );
+    mainSizer->Add( m_log, 0, wxGROW );

 
 

-    m_music_model = new MyMusicModel;
-    m_musicCtrl->AssociateModel( m_music_model.get() );
+    SetSizerAndFit(mainSizer);
+}

 
 

-    m_musicCtrl->EnableDragSource( wxDF_UNICODETEXT );
-    m_musicCtrl->EnableDropTarget( wxDF_UNICODETEXT );
+MyFrame::~MyFrame()
+{
+    delete wxLog::SetActiveTarget(m_logOld);
+}

 
 

-    wxDataViewTextRenderer *tr = new wxDataViewTextRenderer( wxT("string"), wxDATAVIEW_CELL_INERT );
-    wxDataViewColumn *column0 = new wxDataViewColumn( wxT("title"), tr, 0, 200, wxALIGN_LEFT,
-        wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_RESIZABLE );
-    m_musicCtrl->AppendColumn( column0 );
+void MyFrame::BuildDataViewCtrl(wxPanel* parent, unsigned int nPanel, unsigned long style)
+{
+    switch (nPanel)
+    {
+    case 0:
+        {
+            wxASSERT(!m_ctrl[0] && !m_music_model);
+            m_ctrl[0] =
+                new wxDataViewCtrl( parent, ID_MUSIC_CTRL, wxDefaultPosition,
+                                    wxDefaultSize, style );
+            m_ctrl[0]->Connect(wxEVT_CHAR,
+                               wxKeyEventHandler(MyFrame::OnDataViewChar),
+                               NULL, this);
+
+            m_music_model = new MyMusicTreeModel;
+            m_ctrl[0]->AssociateModel( m_music_model.get() );
+
+#if wxUSE_DRAG_AND_DROP && wxUSE_UNICODE
+            m_ctrl[0]->EnableDragSource( wxDF_UNICODETEXT );
+            m_ctrl[0]->EnableDropTarget( wxDF_UNICODETEXT );
+#endif // wxUSE_DRAG_AND_DROP && wxUSE_UNICODE
+
+            // column 0 of the view control:
+
+            wxDataViewTextRenderer *tr =
+                new wxDataViewTextRenderer( "string", wxDATAVIEW_CELL_INERT );
+            wxDataViewColumn *column0 =
+                new wxDataViewColumn( "title", tr, 0, 200, wxALIGN_LEFT,
+                                      wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_RESIZABLE );
+            m_ctrl[0]->AppendColumn( column0 );

 #if 0
 #if 0

-    // Call this and sorting is enabled
-    // immediatly upon start up.
-    column0->SetAsSortKey();
+            // Call this and sorting is enabled
+            // immediatly upon start up.
+            column0->SetAsSortKey();

 #endif
 
 #endif
 

-    tr = new wxDataViewTextRenderer( wxT("string"), wxDATAVIEW_CELL_EDITABLE );
-    wxDataViewColumn *column1 = new wxDataViewColumn( wxT("artist"), tr, 1, 150, wxALIGN_LEFT,
-        wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_REORDERABLE | wxDATAVIEW_COL_RESIZABLE );
-    column1->SetMinWidth(150); // this column can't be resized to be smaller
-    m_musicCtrl->AppendColumn( column1 );
-
-    wxDataViewSpinRenderer *sr = new wxDataViewSpinRenderer( 0, 2010, wxDATAVIEW_CELL_EDITABLE, wxALIGN_RIGHT );
-    wxDataViewColumn *column2 = new wxDataViewColumn( wxT("year"), sr, 2, 60, wxALIGN_LEFT,
-        wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_REORDERABLE );
-    m_musicCtrl->AppendColumn( column2 );
-
-    wxArrayString choices;
-    choices.Add( "good" );
-    choices.Add( "bad" );
-    choices.Add( "lousy" );
-    wxDataViewChoiceRenderer *c = new wxDataViewChoiceRenderer( choices, wxDATAVIEW_CELL_EDITABLE, wxALIGN_RIGHT );
-    wxDataViewColumn *column3 = new wxDataViewColumn( wxT("rating"), c, 3, 100, wxALIGN_LEFT,
-        wxDATAVIEW_COL_REORDERABLE | wxDATAVIEW_COL_RESIZABLE );
-    m_musicCtrl->AppendColumn( column3 );
-
-    m_musicCtrl->AppendProgressColumn( wxT("popularity"), 4, wxDATAVIEW_CELL_INERT, 80 );
-
-    MyCustomRenderer *cr = new MyCustomRenderer( wxDATAVIEW_CELL_ACTIVATABLE, wxALIGN_RIGHT );
-    wxDataViewColumn *column4 = new wxDataViewColumn( wxT("custom"), cr, 5, -1, wxALIGN_LEFT,
-        wxDATAVIEW_COL_RESIZABLE );
-    m_musicCtrl->AppendColumn( column4 );
-
-    data_sizer->Add( m_musicCtrl, 3, wxGROW );
-
-    // MyList
-
-    m_listCtrl = new wxDataViewCtrl( panel, wxID_ANY, wxDefaultPosition,
-                                     wxSize(400,200), wxDV_MULTIPLE | wxDV_ROW_LINES);
-
-    m_list_model = new MyListModel;
-    m_listCtrl->AssociateModel( m_list_model.get() );
-
-#if 1
-    m_listCtrl->AppendTextColumn    (wxT("editable string"), 0, wxDATAVIEW_CELL_EDITABLE, 120 );
-    m_listCtrl->AppendIconTextColumn(wxIcon(small1_xpm), 1, wxDATAVIEW_CELL_INERT )->SetTitle( wxT("icon") );
-#else
-    m_listCtrl->AppendTextColumn    (wxT("editable string"), 0, wxDATAVIEW_CELL_EDITABLE );
-    m_listCtrl->AppendIconTextColumn(wxT("icon"),            1, wxDATAVIEW_CELL_INERT );
-#endif
+            // column 1 of the view control:

 
 

-    wxDataViewTextRendererAttr *ra = new wxDataViewTextRendererAttr;
-    wxDataViewColumn *column5 = new wxDataViewColumn(wxT("attributes"), ra, 2 );
-    m_listCtrl->AppendColumn( column5 );
+            tr = new wxDataViewTextRenderer( "string", wxDATAVIEW_CELL_EDITABLE );
+            wxDataViewColumn *column1 =
+                new wxDataViewColumn( "artist", tr, 1, 150, wxALIGN_LEFT,
+                                      wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_REORDERABLE |
+                                      wxDATAVIEW_COL_RESIZABLE );
+            column1->SetMinWidth(150); // this column can't be resized to be smaller
+            m_ctrl[0]->AppendColumn( column1 );

 
 

-    data_sizer->Add( m_listCtrl, 2, wxGROW );
+            // column 2 of the view control:

 
 

-    main_sizer->Add( data_sizer, 2, wxGROW );
+            wxDataViewSpinRenderer *sr =
+                new wxDataViewSpinRenderer( 0, 2010, wxDATAVIEW_CELL_EDITABLE, wxALIGN_RIGHT );
+            wxDataViewColumn *column2 =
+                new wxDataViewColumn( "year", sr, 2, 60, wxALIGN_LEFT,
+                                      wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_REORDERABLE );
+            m_ctrl[0]->AppendColumn( column2 );

 
 

-    wxBoxSizer *button_sizer = new wxBoxSizer( wxHORIZONTAL );
+            // column 3 of the view control:

 
 

-    button_sizer->Add( new wxButton( panel, ID_ADD_MOZART,  _("Add Mozart")),             0, wxALL, 10 );
-    button_sizer->Add( new wxButton( panel, ID_DELETE_MUSIC,_("Delete selected")),        0, wxALL, 10 );
-    button_sizer->Add( new wxButton( panel, ID_DELETE_YEAR, _("Delete \"Year\" column")), 0, wxALL, 10 );
-    button_sizer->Add( new wxButton( panel, ID_SELECT_NINTH, _("Select Ninth")), 0, wxALL, 10 );
-    button_sizer->Add( 10, 10, 1 );
-    wxFlexGridSizer *grid_sizer = new wxFlexGridSizer( 2, 2 );
-    grid_sizer->Add( new wxButton( panel, ID_PREPEND_LIST,_("Prepend")),         0, wxALL, 2 );
-    grid_sizer->Add( new wxButton( panel, ID_DELETE_LIST, _("Delete selected")), 0, wxALL, 2 );
-    grid_sizer->Add( new wxButton( panel, ID_GOTO,        _("Goto 50")),         0, wxALL, 2 );
-    grid_sizer->Add( new wxButton( panel, ID_ADD_MANY,    _("Add 1000")),        0, wxALL, 2 );
-    button_sizer->Add( grid_sizer, 0, wxALL, 10 );
+            wxArrayString choices;
+            choices.Add( "good" );
+            choices.Add( "bad" );
+            choices.Add( "lousy" );
+            wxDataViewChoiceRenderer *c =
+                new wxDataViewChoiceRenderer( choices, wxDATAVIEW_CELL_EDITABLE, wxALIGN_RIGHT );
+            wxDataViewColumn *column3 =
+                new wxDataViewColumn( "rating", c, 3, 100, wxALIGN_LEFT,
+                                      wxDATAVIEW_COL_REORDERABLE | wxDATAVIEW_COL_RESIZABLE );
+            m_ctrl[0]->AppendColumn( column3 );

 
 

-    main_sizer->Add( button_sizer, 0, wxGROW, 0 );
+            // column 4 of the view control:

 
 

-    wxBoxSizer *bottom_sizer = new wxBoxSizer( wxHORIZONTAL );
+            m_ctrl[0]->AppendProgressColumn( "popularity", 4, wxDATAVIEW_CELL_INERT, 80 );

 
 

-    m_log = new wxTextCtrl( panel, -1, wxString(), wxDefaultPosition, wxSize(100,200), wxTE_MULTILINE );
-    m_logOld = wxLog::SetActiveTarget(new wxLogTextCtrl(m_log));
-    wxLogMessage(_("This is the log window"));
+            // column 5 of the view control:

 
 

-    bottom_sizer->Add( m_log, 1, wxGROW );
+            MyCustomRenderer *cr = new MyCustomRenderer;
+            wxDataViewColumn *column5 =
+                new wxDataViewColumn( "custom", cr, 5, -1, wxALIGN_LEFT,
+                                      wxDATAVIEW_COL_RESIZABLE );
+            m_ctrl[0]->AppendColumn( column5 );

 
 

-    // wxDataViewListCtrl

 
 

-    wxDataViewListCtrl *listctrl = new wxDataViewListCtrl( panel, -1,
-        wxDefaultPosition, wxSize(100,200) );
+            // select initially the ninth symphony:
+            m_ctrl[0]->Select(m_music_model->GetNinthItem());
+        }
+        break;

 
 

-    listctrl->AppendToggleColumn( wxT("Toggle") );
-    listctrl->AppendTextColumn( wxT("Text") );
+    case 1:
+        {
+            wxASSERT(!m_ctrl[1] && !m_list_model);
+            m_ctrl[1] = new wxDataViewCtrl( parent, ID_ATTR_CTRL, wxDefaultPosition,
+                                            wxDefaultSize, style );
+
+            m_list_model = new MyListModel;
+            m_ctrl[1]->AssociateModel( m_list_model.get() );
+
+            // the various columns
+            m_ctrl[1]->AppendTextColumn("editable string",
+                                        MyListModel::Col_EditableText,
+                                        wxDATAVIEW_CELL_EDITABLE,
+                                        wxCOL_WIDTH_AUTOSIZE);
+            m_ctrl[1]->AppendIconTextColumn("icon",
+                                            MyListModel::Col_IconText,
+                                            wxDATAVIEW_CELL_EDITABLE,
+                                            wxCOL_WIDTH_AUTOSIZE);
+
+            m_attributes =
+                new wxDataViewColumn("attributes",
+                                     new wxDataViewTextRenderer,
+                                     MyListModel::Col_TextWithAttr,
+                                     wxCOL_WIDTH_AUTOSIZE,
+                                     wxALIGN_RIGHT,
+                                     wxDATAVIEW_COL_REORDERABLE | wxDATAVIEW_COL_RESIZABLE );
+            m_ctrl[1]->AppendColumn( m_attributes );
+
+            m_ctrl[1]->AppendColumn(
+                new wxDataViewColumn("custom renderer",
+                                     new MyCustomRenderer,
+                                     MyListModel::Col_Custom)
+            );
+        }
+        break;

 
 

-    wxVector<wxVariant> data;
-    data.push_back( true );
-    data.push_back( "row 1" );
-    listctrl->AppendItem( data );
+    case 2:
+        {
+            wxASSERT(!m_ctrl[2]);
+            wxDataViewListCtrl* lc =
+                new wxDataViewListCtrl( parent, wxID_ANY, wxDefaultPosition,
+                                        wxDefaultSize, style );
+            m_ctrl[2] = lc;
+
+            MyListStoreDerivedModel* page2_model = new MyListStoreDerivedModel();
+            lc->AssociateModel(page2_model);
+            page2_model->DecRef();
+
+            lc->AppendToggleColumn( "Toggle" );
+            lc->AppendTextColumn( "Text" );
+            lc->AppendProgressColumn( "Progress" );
+
+            wxVector<wxVariant> data;
+            for (unsigned int i=0; i<10; i++)
+            {
+                data.clear();
+                data.push_back( (i%3) == 0 );
+                data.push_back( wxString::Format("row %d", i) );
+                data.push_back( long(5*i) );

 
 

-    data.clear();
-    data.push_back( false );
-    data.push_back( "row 3" );
-    listctrl->AppendItem( data );
+                lc->AppendItem( data );
+            }
+        }
+        break;

 
 

-    bottom_sizer->Add( listctrl, 1 );
+    case 3:
+        {
+            wxASSERT(!m_ctrl[3]);
+            wxDataViewTreeCtrl* tc =
+                new wxDataViewTreeCtrl( parent, wxID_ANY, wxDefaultPosition,
+                                        wxDefaultSize, style | wxDV_NO_HEADER );
+            m_ctrl[3] = tc;
+
+            wxImageList *ilist = new wxImageList( 16, 16 );
+            ilist->Add( wxIcon(wx_small_xpm) );
+            tc->AssignImageList( ilist );
+
+            wxDataViewItem parent =
+                tc->AppendContainer( wxDataViewItem(0), "The Root", 0 );
+            tc->AppendItem( parent, "Child 1", 0 );
+            tc->AppendItem( parent, "Child 2", 0 );
+            tc->AppendItem( parent, "Child 3, very long, long, long, long", 0 );
+
+            wxDataViewItem cont =
+                tc->AppendContainer( parent, "Container child", 0 );
+            tc->AppendItem( cont, "Child 4", 0 );
+            tc->AppendItem( cont, "Child 5", 0 );
+
+            tc->Expand(cont);
+        }
+        break;
+    }
+}

 
 
 
 

-    // wxDataViewTreeCtrl
+// ----------------------------------------------------------------------------
+// MyFrame - generic event handlers
+// ----------------------------------------------------------------------------

 
 

-    wxDataViewTreeCtrl *treectrl2 = new wxDataViewTreeCtrl( panel, -1, wxDefaultPosition, wxSize(100,200) );
+void MyFrame::OnClearLog( wxCommandEvent& WXUNUSED(event) )
+{
+    m_log->Clear();
+}

 
 

-    wxImageList *ilist = new wxImageList( 16, 16 );
-    ilist->Add( wxIcon(small1_xpm) );
-    treectrl2->SetImageList( ilist );
+void MyFrame::OnSetForegroundColour(wxCommandEvent& WXUNUSED(event))
+{
+    wxDataViewCtrl * const dvc = m_ctrl[m_notebook->GetSelection()];
+    wxColour col = wxGetColourFromUser(this, dvc->GetForegroundColour());
+    if ( col.IsOk() )
+    {
+        dvc->SetForegroundColour(col);
+        Refresh();
+    }
+}

 
 

-    wxDataViewItem parent2 = treectrl2->AppendContainer( wxDataViewItem(0),wxT("Root 1"), 0 );
-    treectrl2->AppendItem( parent2, wxT("Child 1"), 0 );
-    treectrl2->AppendItem( parent2, wxT("Child 2"), 0 );
-    treectrl2->AppendItem( parent2, wxT("Child 3, very long, long, long, long"), 0 );
+void MyFrame::OnSetBackgroundColour(wxCommandEvent& WXUNUSED(event))
+{
+    wxDataViewCtrl * const dvc = m_ctrl[m_notebook->GetSelection()];
+    wxColour col = wxGetColourFromUser(this, dvc->GetBackgroundColour());
+    if ( col.IsOk() )
+    {
+        dvc->SetBackgroundColour(col);
+        Refresh();
+    }
+}

 
 

-    bottom_sizer->Add( treectrl2, 1 );
+void MyFrame::OnPageChanged( wxBookCtrlEvent& WXUNUSED(event) )
+{
+    unsigned int nPanel = m_notebook->GetSelection();

 
 

-    // main sizer
+    GetMenuBar()->FindItem(ID_STYLE_MENU)->SetItemLabel(
+                wxString::Format("Style of panel #%d", nPanel+1));

 
 

-    main_sizer->Add( bottom_sizer, 0, wxGROW );
+    for (unsigned int id = ID_MULTIPLE; id <= ID_VERT_RULES; id++)
+    {
+        unsigned long style = 0;
+        switch (id)
+        {
+        /*case ID_SINGLE:
+            style = wxDV_SINGLE;
+            break;*/
+        case ID_MULTIPLE:
+            style = wxDV_MULTIPLE;
+            break;
+        case ID_ROW_LINES:
+            style = wxDV_ROW_LINES;
+            break;
+        case ID_HORIZ_RULES:
+            style = wxDV_HORIZ_RULES;
+            break;
+        case ID_VERT_RULES:
+            style = wxDV_VERT_RULES;
+            break;
+        default:
+            wxFAIL;
+        }

 
 

-    panel->SetSizer( main_sizer );
+        GetMenuBar()->FindItem(id)->Check( m_ctrl[nPanel]->HasFlag(style) );
+    }

 }
 
 }
 

-MyFrame::~MyFrame()
+void MyFrame::OnStyleChange( wxCommandEvent& WXUNUSED(event) )

 {
 {

-    delete wxLog::SetActiveTarget(m_logOld);
+    unsigned int nPanel = m_notebook->GetSelection();
+
+    // build the style
+    unsigned long style = 0;
+    /*if (GetMenuBar()->FindItem(ID_SINGLE)->IsChecked())
+        style |= wxDV_SINGLE;*/
+    if (GetMenuBar()->FindItem(ID_MULTIPLE)->IsChecked())
+        style |= wxDV_MULTIPLE;
+    if (GetMenuBar()->FindItem(ID_ROW_LINES)->IsChecked())
+        style |= wxDV_ROW_LINES;
+    if (GetMenuBar()->FindItem(ID_HORIZ_RULES)->IsChecked())
+        style |= wxDV_HORIZ_RULES;
+    if (GetMenuBar()->FindItem(ID_VERT_RULES)->IsChecked())
+        style |= wxDV_VERT_RULES;
+
+    wxSizer* sz = m_ctrl[nPanel]->GetContainingSizer();
+    wxASSERT(sz);
+
+    sz->Detach(m_ctrl[nPanel]);
+    wxDELETE(m_ctrl[nPanel]);
+    m_ctrl[nPanel] = NULL;
+
+    if (nPanel == 0)
+        m_music_model.reset(NULL);
+    else if (nPanel == 1)
+        m_list_model.reset(NULL);
+
+    // rebuild the DVC for the selected panel:
+    BuildDataViewCtrl((wxPanel*)m_notebook->GetPage(nPanel), nPanel, style);
+
+    sz->Prepend(m_ctrl[nPanel], 1, wxGROW|wxALL, 5);
+    sz->Layout();

 }
 
 }
 

-void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnQuit( wxCommandEvent& WXUNUSED(event) )

 {
     Close(true);
 }
 
 {
     Close(true);
 }
 

-void MyFrame::OnAddMozart(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnAbout( wxCommandEvent& WXUNUSED(event) )
+{
+    wxAboutDialogInfo info;
+    info.SetName(_("DataView sample"));
+    info.SetDescription(_("This sample demonstrates wxDataViewCtrl"));
+    info.SetCopyright(wxT("(C) 2007-2009 Robert Roebling"));
+    info.AddDeveloper("Robert Roebling");
+    info.AddDeveloper("Francesco Montorsi");
+
+    wxAboutBox(info);
+}
+
+
+// ----------------------------------------------------------------------------
+// MyFrame - event handlers for the first page
+// ----------------------------------------------------------------------------
+
+#if wxUSE_DRAG_AND_DROP
+
+void MyFrame::OnBeginDrag( wxDataViewEvent &event )
+{
+    wxDataViewItem item( event.GetItem() );
+
+    // only allow drags for item, not containers
+    if (m_music_model->IsContainer( item ) )
+    {
+        event.Veto();
+        return;
+    }
+
+    MyMusicTreeModelNode *node = (MyMusicTreeModelNode*) item.GetID();
+    wxTextDataObject *obj = new wxTextDataObject;
+    obj->SetText( node->m_title );
+    event.SetDataObject( obj );
+    event.SetDragFlags(wxDrag_AllowMove); // allows both copy and move
+}
+
+void MyFrame::OnDropPossible( wxDataViewEvent &event )
+{
+    wxDataViewItem item( event.GetItem() );
+
+    // only allow drags for item, not containers
+    if (m_music_model->IsContainer( item ) )
+        event.Veto();
+
+    if (event.GetDataFormat() != wxDF_UNICODETEXT)
+        event.Veto();
+}
+
+void MyFrame::OnDrop( wxDataViewEvent &event )
+{
+    wxDataViewItem item( event.GetItem() );
+
+    // only allow drops for item, not containers
+    if (m_music_model->IsContainer( item ) )
+    {
+        event.Veto();
+        return;
+    }
+
+    if (event.GetDataFormat() != wxDF_UNICODETEXT)
+    {
+        event.Veto();
+        return;
+    }
+
+    wxTextDataObject obj;
+    obj.SetData( wxDF_UNICODETEXT, event.GetDataSize(), event.GetDataBuffer() );
+
+    wxLogMessage( "Text dropped: %s", obj.GetText() );
+}
+
+#endif // wxUSE_DRAG_AND_DROP
+
+void MyFrame::OnAddMozart( wxCommandEvent& WXUNUSED(event) )

 {
 {

-    m_music_model->AddToClassical( wxT("Kleine Nachtmusik"), wxT("Wolfgang Mozart"), 1787 );
+    m_music_model->AddToClassical( "Eine kleine Nachtmusik", "Wolfgang Mozart", 1787 );

 }
 
 }
 

-void MyFrame::OnDeleteMusic(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::DeleteSelectedItems()

 {
     wxDataViewItemArray items;
 {
     wxDataViewItemArray items;

-    int len = m_musicCtrl->GetSelections( items );
+    int len = m_ctrl[0]->GetSelections( items );

     for( int i = 0; i < len; i ++ )
         if (items[i].IsOk())
             m_music_model->Delete( items[i] );
 }
 
     for( int i = 0; i < len; i ++ )
         if (items[i].IsOk())
             m_music_model->Delete( items[i] );
 }
 

+void MyFrame::OnDeleteSelected( wxCommandEvent& WXUNUSED(event) )
+{
+    DeleteSelectedItems();
+}
+

 void MyFrame::OnDeleteYear( wxCommandEvent& WXUNUSED(event) )
 {
 void MyFrame::OnDeleteYear( wxCommandEvent& WXUNUSED(event) )
 {

-    m_musicCtrl->DeleteColumn( m_musicCtrl->GetColumn( 2 ) );
+    m_ctrl[0]->DeleteColumn( m_ctrl[0]->GetColumn( 2 ) );

     FindWindow( ID_DELETE_YEAR )->Disable();
 }
 
 void MyFrame::OnSelectNinth( wxCommandEvent& WXUNUSED(event) )
 {
     FindWindow( ID_DELETE_YEAR )->Disable();
 }
 
 void MyFrame::OnSelectNinth( wxCommandEvent& WXUNUSED(event) )
 {

-    m_musicCtrl->Select( m_music_model->GetNinthItem() );
+    if (!m_music_model->GetNinthItem().IsOk())
+    {
+        wxLogError( "Cannot select the ninth symphony: it was removed!" );
+        return;
+    }
+
+    m_ctrl[0]->Select( m_music_model->GetNinthItem() );

 }
 
 }
 

-void MyFrame::OnPrependList( wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnCollapse( wxCommandEvent& WXUNUSED(event) )

 {
 {

-    m_list_model->Prepend(wxT("Test"));
+    wxDataViewItem item = m_ctrl[0]->GetSelection();
+    if (item.IsOk())
+        m_ctrl[0]->Collapse( item );

 }
 
 }
 

-void MyFrame::OnDeleteList( wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnExpand( wxCommandEvent& WXUNUSED(event) )

 {
 {

-    wxDataViewItemArray items;
-    int len = m_listCtrl->GetSelections( items );
-    if (len > 0)
-        m_list_model->DeleteItems( items );
+    wxDataViewItem item = m_ctrl[0]->GetSelection();
+    if (item.IsOk())
+        m_ctrl[0]->Expand( item );

 }
 
 }
 

-void MyFrame::OnValueChanged( wxDataViewEvent &event )
+void MyFrame::OnShowCurrent(wxCommandEvent& WXUNUSED(event))

 {
 {

-    if (!m_log)
-        return;
+    wxDataViewItem item = m_ctrl[0]->GetCurrentItem();
+    if ( item.IsOk() )
+    {
+        wxLogMessage("Current item: \"%s\" by %s",
+                     m_music_model->GetTitle(item),
+                     m_music_model->GetArtist(item));
+    }
+    else
+    {
+        wxLogMessage("There is no current item.");
+    }

 
 

-    wxLogMessage( wxT("EVT_DATAVIEW_ITEM_VALUE_CHANGED, Item Id: %d;  Column: %d"), event.GetItem().GetID(), event.GetColumn() );
+    wxDataViewColumn *col = m_ctrl[0]->GetCurrentColumn();
+    if ( col )
+    {
+        wxLogMessage("Current column: %d",
+                     m_ctrl[0]->GetColumnPosition(col));
+    }
+    else
+    {
+        wxLogMessage("There is no current column.");
+    }

 }
 
 }
 

-void MyFrame::OnActivated( wxDataViewEvent &event )
+void MyFrame::OnSetNinthCurrent(wxCommandEvent& WXUNUSED(event))

 {
 {

-    if(!m_log)
+    wxDataViewItem item(m_music_model->GetNinthItem());
+    if ( !item.IsOk() )
+    {
+        wxLogError( "Cannot make the ninth symphony current: it was removed!" );

         return;
         return;

+    }

 
 

+    m_ctrl[0]->SetCurrentItem(item);
+}
+
+void MyFrame::OnValueChanged( wxDataViewEvent &event )
+{
+    wxString title = m_music_model->GetTitle( event.GetItem() );
+    wxLogMessage( "wxEVT_DATAVIEW_ITEM_VALUE_CHANGED, Item Id: %s;  Column: %d",
+                  title, event.GetColumn() );
+}
+
+void MyFrame::OnActivated( wxDataViewEvent &event )
+{

     wxString title = m_music_model->GetTitle( event.GetItem() );
     wxString title = m_music_model->GetTitle( event.GetItem() );

-    wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, Item: %s"), title );
+    wxLogMessage( "wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, Item: %s", title );

 
 

-    if (m_musicCtrl->IsExpanded( event.GetItem() ))
-        wxLogMessage(wxT("Item: %s is expanded"), title );
+    if (m_ctrl[0]->IsExpanded( event.GetItem() ))
+    {
+        wxLogMessage( "Item: %s is expanded", title );
+    }

 }
 
 void MyFrame::OnSelectionChanged( wxDataViewEvent &event )
 {
 }
 
 void MyFrame::OnSelectionChanged( wxDataViewEvent &event )
 {

-    if(!m_log)
-        return;
-

     wxString title = m_music_model->GetTitle( event.GetItem() );
     if (title.empty())
     wxString title = m_music_model->GetTitle( event.GetItem() );
     if (title.empty())

-        title = wxT("None");
+        title = "None";

 
 

-    wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, First selected Item: %s"), title );
+    wxLogMessage( "wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, First selected Item: %s", title );

 }
 
 void MyFrame::OnExpanding( wxDataViewEvent &event )
 {
 }
 
 void MyFrame::OnExpanding( wxDataViewEvent &event )
 {

-    if (!m_log)
-        return;
-

     wxString title = m_music_model->GetTitle( event.GetItem() );
     wxString title = m_music_model->GetTitle( event.GetItem() );

-    wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING, Item: %s"), title );
+    wxLogMessage( "wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING, Item: %s", title );

 }
 
 
 }
 
 

-void MyFrame::OnEditingStarted( wxDataViewEvent &event )
+void MyFrame::OnStartEditing( wxDataViewEvent &event )

 {
 {

-    if (!m_log)
-        return;
+    wxString artist = m_music_model->GetArtist( event.GetItem() );
+    if (artist == "Ludwig van Beethoven")
+    {
+        event.Veto();
+
+        wxLogMessage( "wxEVT_COMMAND_DATAVIEW_ITEM_START_EDITING vetoed. Artist: %s", artist );
+    }
+    else
+        wxLogMessage( "wxEVT_COMMAND_DATAVIEW_ITEM_START_EDITING not vetoed. Artist: %s", artist );
+
+}

 
 

+void MyFrame::OnEditingStarted( wxDataViewEvent &event )
+{

     wxString title = m_music_model->GetTitle( event.GetItem() );
     wxString title = m_music_model->GetTitle( event.GetItem() );

-    wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_ITEM_EDITING_STARTED, Item: %s"), title );
+    wxLogMessage( "wxEVT_COMMAND_DATAVIEW_ITEM_EDITING_STARTED, Item: %s", title );

 }
 
 void MyFrame::OnEditingDone( wxDataViewEvent &event )
 {
 }
 
 void MyFrame::OnEditingDone( wxDataViewEvent &event )
 {

-    if (!m_log)
-        return;
-

     wxString title = m_music_model->GetTitle( event.GetItem() );
     wxString title = m_music_model->GetTitle( event.GetItem() );

-    wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_ITEM_EDITING_DONE, Item: %s"), title );
+    wxLogMessage( "wxEVT_COMMAND_DATAVIEW_ITEM_EDITING_DONE, Item: %s", title );

 }
 
 void MyFrame::OnExpanded( wxDataViewEvent &event )
 {
 }
 
 void MyFrame::OnExpanded( wxDataViewEvent &event )
 {

-    if (!m_log)
-        return;
-

     wxString title = m_music_model->GetTitle( event.GetItem() );
     wxString title = m_music_model->GetTitle( event.GetItem() );

-    wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED, Item: %s"), title );
+    wxLogMessage( "wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED, Item: %s", title );

 }
 
 void MyFrame::OnCollapsing( wxDataViewEvent &event )
 {
 }
 
 void MyFrame::OnCollapsing( wxDataViewEvent &event )
 {

-    if (!m_log)
-        return;
-

     wxString title = m_music_model->GetTitle( event.GetItem() );
     wxString title = m_music_model->GetTitle( event.GetItem() );

-    wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING, Item: %s"), title );
+    wxLogMessage( "wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING, Item: %s", title );

 }
 
 void MyFrame::OnCollapsed( wxDataViewEvent &event )
 {
 }
 
 void MyFrame::OnCollapsed( wxDataViewEvent &event )
 {

-    if (!m_log)
-        return;
-

     wxString title = m_music_model->GetTitle( event.GetItem() );
     wxString title = m_music_model->GetTitle( event.GetItem() );

-    wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED, Item: %s"),title);
+    wxLogMessage( "wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED, Item: %s", title );

 }
 
 void MyFrame::OnContextMenu( wxDataViewEvent &event )
 {
 }
 
 void MyFrame::OnContextMenu( wxDataViewEvent &event )
 {

-    if (!m_log)
-        return;
-

     wxString title = m_music_model->GetTitle( event.GetItem() );
     wxString title = m_music_model->GetTitle( event.GetItem() );

-    wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, Item: %s"),title );
+    wxLogMessage( "wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, Item: %s", title );

 
     wxMenu menu;
 
     wxMenu menu;

-    menu.Append( 1, wxT("entry 1") );
-    menu.Append( 2, wxT("entry 2") );
-    menu.Append( 3, wxT("entry 3") );
+    menu.Append( 1, "menuitem 1" );
+    menu.Append( 2, "menuitem 2" );
+    menu.Append( 3, "menuitem 3" );
+
+    m_ctrl[0]->PopupMenu(&menu);
+}
+
+void MyFrame::OnAttrHeaderClick( wxDataViewEvent &event )
+{
+    // we need to skip the event to let the default behaviour of sorting by
+    // this column when it is clicked to take place
+    event.Skip();

 
 

-    m_musicCtrl->PopupMenu(&menu);
+    int pos = m_ctrl[1]->GetColumnPosition( event.GetDataViewColumn() );

 
 

-//    wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, Item: %s Value: %s"),title.GetData(), event.GetValue().GetString());
+    wxLogMessage( "wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, Column position: %d", pos );
+    wxLogMessage( "Column title: %s  Column width: %d", event.GetDataViewColumn()->GetTitle(), event.GetDataViewColumn()->GetWidth() );

 }
 
 void MyFrame::OnHeaderClick( wxDataViewEvent &event )
 }
 
 void MyFrame::OnHeaderClick( wxDataViewEvent &event )


@@ -1099,46 +1078,55 @@ void MyFrame::OnHeaderClick( wxDataViewEvent &event )
     // this column when it is clicked to take place
     event.Skip();
 
     // this column when it is clicked to take place
     event.Skip();
 

-    if(!m_log)
-        return;
-
-    int pos = m_musicCtrl->GetColumnPosition( event.GetDataViewColumn() );
+    int pos = m_ctrl[0]->GetColumnPosition( event.GetDataViewColumn() );

 
 

-    wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, Column position: %d"), pos );
+    wxLogMessage( "wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, Column position: %d", pos );
+    wxLogMessage( "Column width: %d", event.GetDataViewColumn()->GetWidth() );

 }
 
 void MyFrame::OnHeaderRightClick( wxDataViewEvent &event )
 {
 }
 
 void MyFrame::OnHeaderRightClick( wxDataViewEvent &event )
 {

-    if(!m_log)
-        return;
-
-    int pos = m_musicCtrl->GetColumnPosition( event.GetDataViewColumn() );
+    int pos = m_ctrl[0]->GetColumnPosition( event.GetDataViewColumn() );

 
 

-    wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK, Column position: %d"), pos );
+    wxLogMessage( "wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK, Column position: %d", pos );

 }
 
 void MyFrame::OnSorted( wxDataViewEvent &event )
 {
 }
 
 void MyFrame::OnSorted( wxDataViewEvent &event )
 {

-    if(!m_log)
-        return;
+    int pos = m_ctrl[0]->GetColumnPosition( event.GetDataViewColumn() );

 
 

-    int pos = m_musicCtrl->GetColumnPosition( event.GetDataViewColumn() );
+    wxLogMessage( "wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED, Column position: %d", pos );
+}

 
 

-    wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED, Column position: %d"), pos );
+void MyFrame::OnDataViewChar(wxKeyEvent& event)
+{
+    if ( event.GetKeyCode() == WXK_DELETE )
+        DeleteSelectedItems();
+    else
+        event.Skip();

 }
 
 }
 

-void MyFrame::OnRightClick( wxMouseEvent &event )
+// ----------------------------------------------------------------------------
+// MyFrame - event handlers for the second page
+// ----------------------------------------------------------------------------
+
+void MyFrame::OnPrependList( wxCommandEvent& WXUNUSED(event) )

 {
 {

-    if(!m_log)
-        return;
+    m_list_model->Prepend("Test");
+}

 
 

-    wxLogMessage(wxT("wxEVT_MOUSE_RIGHT_UP, Click Point is X: %d, Y: %d"), event.GetX(), event.GetY());
+void MyFrame::OnDeleteList( wxCommandEvent& WXUNUSED(event) )
+{
+    wxDataViewItemArray items;
+    int len = m_ctrl[1]->GetSelections( items );
+    if (len > 0)
+        m_list_model->DeleteItems( items );

 }
 
 void MyFrame::OnGoto(wxCommandEvent& WXUNUSED(event))
 {
     wxDataViewItem item = m_list_model->GetItem( 50 );
 }
 
 void MyFrame::OnGoto(wxCommandEvent& WXUNUSED(event))
 {
     wxDataViewItem item = m_list_model->GetItem( 50 );

-    m_listCtrl->EnsureVisible(item,m_col);
+    m_ctrl[1]->EnsureVisible(item,m_col);

 }
 
 void MyFrame::OnAddMany(wxCommandEvent& WXUNUSED(event))
 }
 
 void MyFrame::OnAddMany(wxCommandEvent& WXUNUSED(event))


@@ -1146,66 +1134,52 @@ void MyFrame::OnAddMany(wxCommandEvent& WXUNUSED(event))
     m_list_model->AddMany();
 }
 
     m_list_model->AddMany();
 }
 

-
-void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnHideAttributes(wxCommandEvent& WXUNUSED(event))

 {
 {

-    wxAboutDialogInfo info;
-    info.SetName(_("DataView sample"));
-    info.SetDescription(_("This sample demonstrates wxDataViewCtrl"));
-    info.SetCopyright(_T("(C) 2007-2009 Robert Roebling"));
-
-    wxAboutBox(info);
+    m_attributes->SetHidden(true);

 }
 
 }
 

-void MyFrame::OnBeginDrag( wxDataViewEvent &event )
+void MyFrame::OnShowAttributes(wxCommandEvent& WXUNUSED(event))

 {
 {

-    wxDataViewItem item( event.GetItem() );
+    m_attributes->SetHidden(false);
+}

 
 

-    // only allow drags for item, not containers
-    if (m_music_model->IsContainer( item ) )
-    {
-        event.Veto();
+// ----------------------------------------------------------------------------
+// MyFrame - event handlers for the fourth page
+// ----------------------------------------------------------------------------
+
+void MyFrame::OnDeleteTreeItem(wxCommandEvent& WXUNUSED(event))
+{
+    wxDataViewTreeCtrl* ctrl = (wxDataViewTreeCtrl*) m_ctrl[3];
+    wxDataViewItem selected = ctrl->GetSelection();
+    if (!selected.IsOk())

         return;
         return;

-    }

 
 

-    MyMusicModelNode *node = (MyMusicModelNode*) item.GetID();
-    wxTextDataObject *obj = new wxTextDataObject;
-    obj->SetText( node->m_title );
-    event.SetDataObject( obj );
+    ctrl->DeleteItem(selected);

 }
 
 }
 

-void MyFrame::OnDropPossible( wxDataViewEvent &event )
+void MyFrame::OnDeleteAllTreeItems(wxCommandEvent& WXUNUSED(event))

 {
 {

-    wxDataViewItem item( event.GetItem() );
-
-    // only allow drags for item, not containers
-    if (m_music_model->IsContainer( item ) )
-        event.Veto();
-
-    if (event.GetDataFormat() != wxDF_UNICODETEXT)
-        event.Veto();
+    wxDataViewTreeCtrl* ctrl = (wxDataViewTreeCtrl*) m_ctrl[3];
+    ctrl->DeleteAllItems();

 }
 
 }
 

-void MyFrame::OnDrop( wxDataViewEvent &event )
+void MyFrame::OnAddTreeItem(wxCommandEvent& WXUNUSED(event))

 {
 {

-    wxDataViewItem item( event.GetItem() );
-
-    // only allow drops for item, not containers
-    if (m_music_model->IsContainer( item ) )
-    {
-        event.Veto();
-        return;
-    }
-
-    if (event.GetDataFormat() != wxDF_UNICODETEXT)
-    {
-        event.Veto();
-        return;
+    wxDataViewTreeCtrl* ctrl = (wxDataViewTreeCtrl*) m_ctrl[3];
+    wxDataViewItem selected = ctrl->GetSelection();
+    if (ctrl->IsContainer(selected)) {
+        wxDataViewItem newitem = ctrl->AppendItem( selected, "Item", 0 );
+        ctrl->Select(newitem);
+        ctrl->EditItem(newitem, ctrl->GetColumn(0));

     }
     }

+}

 
 

-    wxTextDataObject obj;
-    obj.SetData( wxDF_TEXT, event.GetDataSize(), event.GetDataBuffer() );
-
-    wxLogMessage(wxT("Text dropped: %s"), obj.GetText() );
+void MyFrame::OnAddTreeContainerItem(wxCommandEvent& WXUNUSED(event))
+{
+    wxDataViewTreeCtrl* ctrl = (wxDataViewTreeCtrl*) m_ctrl[3];
+    wxDataViewItem selected = ctrl->GetSelection();
+    if (ctrl->IsContainer(selected))
+        ctrl->AppendContainer(selected, "Container", 0 );

 }
 
 }