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[wxWidgets.git] / samples / dataview / dataview.cpp
diff --git a/samples/dataview/dataview.cpp b/samples/dataview/dataview.cpp
index 2b0dc8efd250737f3f08ab2498edbbfa1fee99bd..ed3d828173440f534a0a6d51836a248f127bb5e9 100644 (file)
--- a/samples/dataview/dataview.cpp
+++ b/samples/dataview/dataview.cpp
@@ -6,7 +6,7 @@
 // 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
 /////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
 /////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
@@ -28,6 +28,7 @@
 #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/choicdlg.h"
 #include "wx/numdlg.h"
 #include "wx/spinctrl.h"
@@ -66,25 +67,37 @@ public:
     MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int h);
     ~MyFrame();
 
     MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int h);
     ~MyFrame();
 
-    void BuildDataViewCtrl(wxPanel* parent, 
-                           unsigned int nPanel, 
+    void BuildDataViewCtrl(wxPanel* parent,
+                           unsigned int nPanel,
                            unsigned long style = 0);
 
                            unsigned long style = 0);
 
-public:     // event handlers
-
+private:
+    // event handlers
     void OnStyleChange(wxCommandEvent& event);
     void OnStyleChange(wxCommandEvent& event);
+    void OnSetBackgroundColour(wxCommandEvent& event);
+    void OnSetForegroundColour(wxCommandEvent& event);
     void OnQuit(wxCommandEvent& event);
     void OnAbout(wxCommandEvent& event);
 
     void OnQuit(wxCommandEvent& event);
     void OnAbout(wxCommandEvent& event);
 
+    void OnClearLog(wxCommandEvent& event);
     void OnPageChanged(wxBookCtrlEvent& event);
 
     void OnAddMozart(wxCommandEvent& event);
     void OnPageChanged(wxBookCtrlEvent& event);
 
     void OnAddMozart(wxCommandEvent& event);
-    void OnDeleteMusic(wxCommandEvent& event);
+    void OnDeleteSelected(wxCommandEvent& event);
     void OnDeleteYear(wxCommandEvent& event);
     void OnSelectNinth(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);
 
     void OnPrependList(wxCommandEvent& event);
     void OnDeleteList(wxCommandEvent& event);
 
     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);
 
     void OnValueChanged( wxDataViewEvent &event );
 
 
     void OnValueChanged( wxDataViewEvent &event );
 
@@ -95,24 +108,34 @@ public:     // event handlers
     void OnCollapsed( wxDataViewEvent &event );
     void OnSelectionChanged( wxDataViewEvent &event );
 
     void OnCollapsed( wxDataViewEvent &event );
     void OnSelectionChanged( wxDataViewEvent &event );
 
+    void OnStartEditing( wxDataViewEvent &event );
     void OnEditingStarted( wxDataViewEvent &event );
     void OnEditingDone( wxDataViewEvent &event );
 
     void OnHeaderClick( wxDataViewEvent &event );
     void OnEditingStarted( wxDataViewEvent &event );
     void OnEditingDone( wxDataViewEvent &event );
 
     void OnHeaderClick( wxDataViewEvent &event );
+    void OnAttrHeaderClick( wxDataViewEvent &event );
     void OnHeaderRightClick( wxDataViewEvent &event );
     void OnSorted( wxDataViewEvent &event );
 
     void OnContextMenu( 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 OnGoto( wxCommandEvent &event);
     void OnAddMany( wxCommandEvent &event);
+    void OnHideAttributes( wxCommandEvent &event);
+    void OnShowAttributes( wxCommandEvent &event);
 
 
+#if wxUSE_DRAG_AND_DROP
     void OnBeginDrag( wxDataViewEvent &event );
     void OnDropPossible( wxDataViewEvent &event );
     void OnDrop( wxDataViewEvent &event );
     void OnBeginDrag( wxDataViewEvent &event );
     void OnDropPossible( wxDataViewEvent &event );
     void OnDrop( wxDataViewEvent &event );
+#endif // wxUSE_DRAG_AND_DROP
+
+    void OnDataViewChar(wxKeyEvent& event);
+
+    // helper used by both OnDeleteSelected() and OnDataViewChar()
+    void DeleteSelectedItems();
+
 
 
-private:
     wxNotebook* m_notebook;
 
     // the controls stored in the various tabs of the main notebook:
     wxNotebook* m_notebook;
 
     // the controls stored in the various tabs of the main notebook:
@@ -127,6 +150,7 @@ private:
     // other data:
 
     wxDataViewColumn* m_col;
     // other data:
 
     wxDataViewColumn* m_col;
+    wxDataViewColumn* m_attributes;
 
     wxTextCtrl* m_log;
     wxLog *m_logOld;
 
     wxTextCtrl* m_log;
     wxLog *m_logOld;
@@ -143,21 +167,31 @@ private:
 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.Deflate(2) );
+
+        rect.Deflate(2);
+        dc->DrawRoundedRectangle( rect, 5 );
+
+        RenderText(m_value,
+                   0, // no offset
+                   wxRect(dc->GetTextExtent(m_value)).CentreIn(rect),
+                   dc,
+                   state);
         return true;
     }
 
     virtual bool Activate( wxRect WXUNUSED(cell),
         return true;
     }
 
     virtual bool Activate( wxRect WXUNUSED(cell),
-                           wxDataViewModel *WXUNUSED(model), 
-                           const wxDataViewItem &WXUNUSED(item), 
+                           wxDataViewModel *WXUNUSED(model),
+                           const wxDataViewItem &WXUNUSED(item),
                            unsigned int WXUNUSED(col) )
     {
         wxLogMessage( "MyCustomRenderer Activate()" );
                            unsigned int WXUNUSED(col) )
     {
         wxLogMessage( "MyCustomRenderer Activate()" );
@@ -165,8 +199,8 @@ public:
     }
 
     virtual bool LeftClick( wxPoint cursor, wxRect WXUNUSED(cell),
     }
 
     virtual bool LeftClick( wxPoint cursor, wxRect WXUNUSED(cell),
-                           wxDataViewModel *WXUNUSED(model), 
-                           const wxDataViewItem &WXUNUSED(item), 
+                           wxDataViewModel *WXUNUSED(model),
+                           const wxDataViewItem &WXUNUSED(item),
                            unsigned int WXUNUSED(col) )
     {
         wxLogMessage( "MyCustomRenderer LeftClick( %d, %d )", cursor.x, cursor.y );
                            unsigned int WXUNUSED(col) )
     {
         wxLogMessage( "MyCustomRenderer LeftClick( %d, %d )", cursor.x, cursor.y );
@@ -175,20 +209,19 @@ public:
 
     virtual wxSize GetSize() const
     {
 
     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;
 };
 
 
 };
 
 
@@ -208,8 +241,7 @@ bool MyApp::OnInit()
         return false;
 
     MyFrame *frame =
         return false;
 
     MyFrame *frame =
-        new MyFrame(NULL, wxT("wxDataViewCtrl sample"), 40, 40, 1000, 540);
-    SetTopWindow(frame);
+        new MyFrame(NULL, "wxDataViewCtrl sample", 40, 40, 1000, 540);
 
     frame->Show(true);
     return true;
 
     frame->Show(true);
     return true;
@@ -222,7 +254,10 @@ bool MyApp::OnInit()
 
 enum
 {
 
 enum
 {
-    ID_STYLE_MENU = wxID_HIGHEST+1,
+    ID_CLEARLOG = wxID_HIGHEST+1,
+    ID_BACKGROUND_COLOUR,
+    ID_FOREGROUND_COLOUR,
+    ID_STYLE_MENU,
 
     // file menu
     //ID_SINGLE,        wxDV_SINGLE==0 so it's always present
 
     // file menu
     //ID_SINGLE,        wxDV_SINGLE==0 so it's always present
@@ -240,33 +275,62 @@ enum
     // control IDs
 
     ID_MUSIC_CTRL       = 50,
     // control IDs
 
     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)
     EVT_MENU_RANGE( ID_MULTIPLE, ID_VERT_RULES, MyFrame::OnStyleChange )
     EVT_MENU( ID_EXIT, MyFrame::OnQuit )
     EVT_MENU( ID_ABOUT, MyFrame::OnAbout )
 };
 
 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
     EVT_MENU_RANGE( ID_MULTIPLE, ID_VERT_RULES, MyFrame::OnStyleChange )
     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_NOTEBOOK_PAGE_CHANGED( wxID_ANY, MyFrame::OnPageChanged )
 
     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 )
 
@@ -277,6 +341,7 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
     EVT_DATAVIEW_ITEM_COLLAPSED(ID_MUSIC_CTRL, MyFrame::OnCollapsed)
     EVT_DATAVIEW_SELECTION_CHANGED(ID_MUSIC_CTRL, MyFrame::OnSelectionChanged)
 
     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_ITEM_EDITING_STARTED(ID_MUSIC_CTRL, MyFrame::OnEditingStarted)
     EVT_DATAVIEW_ITEM_EDITING_DONE(ID_MUSIC_CTRL, MyFrame::OnEditingDone)
 
@@ -286,11 +351,14 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 
     EVT_DATAVIEW_ITEM_CONTEXT_MENU(ID_MUSIC_CTRL, MyFrame::OnContextMenu)
 
 
     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 )
     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)
 
 
-    EVT_RIGHT_UP(MyFrame::OnRightClick)
 END_EVENT_TABLE()
 
 MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int h):
 END_EVENT_TABLE()
 
 MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int h):
@@ -311,50 +379,72 @@ MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int
     // ----------------
 
     wxMenu *style_menu = new wxMenu;
     // ----------------
 
     wxMenu *style_menu = new wxMenu;
-    //style_menu->AppendCheckItem(ID_SINGLE, wxT("Single selection"));
-    style_menu->AppendCheckItem(ID_MULTIPLE, wxT("Multiple selection"));
-    style_menu->AppendCheckItem(ID_ROW_LINES, wxT("Alternating colours"));
-    style_menu->AppendCheckItem(ID_HORIZ_RULES, wxT("Display horizontal rules"));
-    style_menu->AppendCheckItem(ID_VERT_RULES, wxT("Display vertical rules"));
+    //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;
 
     wxMenu *file_menu = new wxMenu;
-    file_menu->Append(ID_STYLE_MENU, wxT("&Style"), style_menu);
+    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->AppendSeparator();
-    file_menu->Append(ID_EXIT, wxT("E&xit"));
+    file_menu->Append(ID_EXIT, "E&xit");
 
     wxMenu *about_menu = new wxMenu;
 
     wxMenu *about_menu = new wxMenu;
-    about_menu->Append(ID_ABOUT, wxT("&About"));
+    about_menu->Append(ID_ABOUT, "&About");
 
     wxMenuBar *menu_bar = new wxMenuBar;
 
     wxMenuBar *menu_bar = new wxMenuBar;
-    menu_bar->Append(file_menu, wxT("&File"));
-    menu_bar->Append(about_menu, wxT("&About"));
+    menu_bar->Append(file_menu, "&File");
+    menu_bar->Append(about_menu, "&About");
 
     SetMenuBar(menu_bar);
     CreateStatusBar();
 
 
 
     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
     // --------------------------
     // 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]
 
     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 );
     wxBoxSizer *button_sizer = new wxBoxSizer( wxHORIZONTAL );
-    button_sizer->Add( new wxButton( firstPanel, ID_ADD_MOZART,  _("Add Mozart")),             0, wxALL, 10 );
-    button_sizer->Add( new wxButton( firstPanel, ID_DELETE_MUSIC,_("Delete selected")),        0, wxALL, 10 );
-    button_sizer->Add( new wxButton( firstPanel, ID_DELETE_YEAR, _("Delete \"Year\" column")), 0, wxALL, 10 );
-    button_sizer->Add( new wxButton( firstPanel, ID_SELECT_NINTH,_("Select Ninth")),           0, wxALL, 10 );
+    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(
 
     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, wxT("Most of the cells above are editable!")), 
+        new wxStaticText(firstPanel, wxID_ANY, "Most of the cells above are editable!"),
         0, wxGROW|wxALL, 5);
     firstPanelSz->Add(button_sizer);
         0, wxGROW|wxALL, 5);
     firstPanelSz->Add(button_sizer);
+    firstPanelSz->Add(sizerCurrent);
     firstPanel->SetSizerAndFit(firstPanelSz);
 
 
     firstPanel->SetSizerAndFit(firstPanelSz);
 
 
@@ -366,10 +456,12 @@ MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int
     BuildDataViewCtrl(secondPanel, 1);    // sets m_ctrl[1]
 
     wxBoxSizer *button_sizer2 = new wxBoxSizer( wxHORIZONTAL );
     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_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);
 
     wxSizer *secondPanelSz = new wxBoxSizer( wxVERTICAL );
     secondPanelSz->Add(m_ctrl[1], 1, wxGROW|wxALL, 5);
@@ -391,17 +483,24 @@ MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int
 
     // fourth page of the notebook
     // ---------------------------
 
     // fourth page of the notebook
     // ---------------------------
-    
+
     wxPanel *fourthPanel = new wxPanel( m_notebook, wxID_ANY );
 
     BuildDataViewCtrl(fourthPanel, 3);    // sets m_ctrl[3]
     wxPanel *fourthPanel = new wxPanel( m_notebook, wxID_ANY );
 
     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 );
 
     wxSizer *fourthPanelSz = new wxBoxSizer( wxVERTICAL );
     fourthPanelSz->Add(m_ctrl[3], 1, wxGROW|wxALL, 5);
 
     wxSizer *fourthPanelSz = new wxBoxSizer( wxVERTICAL );
     fourthPanelSz->Add(m_ctrl[3], 1, wxGROW|wxALL, 5);
+    fourthPanelSz->Add(button_sizer4);
     fourthPanel->SetSizerAndFit(fourthPanelSz);
 
 
     fourthPanel->SetSizerAndFit(fourthPanelSz);
 
 
-    
+
     // complete GUI
     // ------------
 
     // complete GUI
     // ------------
 
@@ -411,12 +510,6 @@ MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int
     m_notebook->AddPage(fourthPanel, "wxDataViewTreeCtrl");
 
     wxSizer* mainSizer = new wxBoxSizer(wxVERTICAL);
     m_notebook->AddPage(fourthPanel, "wxDataViewTreeCtrl");
 
     wxSizer* mainSizer = new wxBoxSizer(wxVERTICAL);
-    
-    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"));
 
     mainSizer->Add( m_notebook, 1, wxGROW );
     mainSizer->Add( m_log, 0, wxGROW );
 
     mainSizer->Add( m_notebook, 1, wxGROW );
     mainSizer->Add( m_log, 0, wxGROW );
@@ -436,22 +529,27 @@ void MyFrame::BuildDataViewCtrl(wxPanel* parent, unsigned int nPanel, unsigned l
     case 0:
         {
             wxASSERT(!m_ctrl[0] && !m_music_model);
     case 0:
         {
             wxASSERT(!m_ctrl[0] && !m_music_model);
-            m_ctrl[0] = 
+            m_ctrl[0] =
                 new wxDataViewCtrl( parent, ID_MUSIC_CTRL, wxDefaultPosition,
                                     wxDefaultSize, style );
                 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() );
 
 
             m_music_model = new MyMusicTreeModel;
             m_ctrl[0]->AssociateModel( m_music_model.get() );
 
+#if wxUSE_DRAG_AND_DROP
             m_ctrl[0]->EnableDragSource( wxDF_UNICODETEXT );
             m_ctrl[0]->EnableDropTarget( wxDF_UNICODETEXT );
             m_ctrl[0]->EnableDragSource( wxDF_UNICODETEXT );
             m_ctrl[0]->EnableDropTarget( wxDF_UNICODETEXT );
+#endif // wxUSE_DRAG_AND_DROP
 
             // column 0 of the view control:
 
 
             // column 0 of the view control:
 
-            wxDataViewTextRenderer *tr = 
-                new wxDataViewTextRenderer( wxT("string"), wxDATAVIEW_CELL_INERT );
-            wxDataViewColumn *column0 = 
-                new wxDataViewColumn( wxT("title"), tr, 0, 200, wxALIGN_LEFT,
+            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
                                       wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_RESIZABLE );
             m_ctrl[0]->AppendColumn( column0 );
 #if 0
@@ -462,20 +560,20 @@ void MyFrame::BuildDataViewCtrl(wxPanel* parent, unsigned int nPanel, unsigned l
 
             // column 1 of the view control:
 
 
             // column 1 of the view control:
 
-            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 | 
+            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 );
 
             // column 2 of the view control:
 
                                       wxDATAVIEW_COL_RESIZABLE );
             column1->SetMinWidth(150); // this column can't be resized to be smaller
             m_ctrl[0]->AppendColumn( column1 );
 
             // column 2 of the view control:
 
-            wxDataViewSpinRenderer *sr = 
+            wxDataViewSpinRenderer *sr =
                 new wxDataViewSpinRenderer( 0, 2010, wxDATAVIEW_CELL_EDITABLE, wxALIGN_RIGHT );
                 new wxDataViewSpinRenderer( 0, 2010, wxDATAVIEW_CELL_EDITABLE, wxALIGN_RIGHT );
-            wxDataViewColumn *column2 = 
-                new wxDataViewColumn( wxT("year"), sr, 2, 60, wxALIGN_LEFT,
+            wxDataViewColumn *column2 =
+                new wxDataViewColumn( "year", sr, 2, 60, wxALIGN_LEFT,
                                       wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_REORDERABLE );
             m_ctrl[0]->AppendColumn( column2 );
 
                                       wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_REORDERABLE );
             m_ctrl[0]->AppendColumn( column2 );
 
@@ -485,25 +583,25 @@ void MyFrame::BuildDataViewCtrl(wxPanel* parent, unsigned int nPanel, unsigned l
             choices.Add( "good" );
             choices.Add( "bad" );
             choices.Add( "lousy" );
             choices.Add( "good" );
             choices.Add( "bad" );
             choices.Add( "lousy" );
-            wxDataViewChoiceRenderer *c = 
+            wxDataViewChoiceRenderer *c =
                 new wxDataViewChoiceRenderer( choices, wxDATAVIEW_CELL_EDITABLE, wxALIGN_RIGHT );
                 new wxDataViewChoiceRenderer( choices, wxDATAVIEW_CELL_EDITABLE, wxALIGN_RIGHT );
-            wxDataViewColumn *column3 = 
-                new wxDataViewColumn( wxT("rating"), c, 3, 100, wxALIGN_LEFT,
+            wxDataViewColumn *column3 =
+                new wxDataViewColumn( "rating", c, 3, 100, wxALIGN_LEFT,
                                       wxDATAVIEW_COL_REORDERABLE | wxDATAVIEW_COL_RESIZABLE );
             m_ctrl[0]->AppendColumn( column3 );
 
             // column 4 of the view control:
 
                                       wxDATAVIEW_COL_REORDERABLE | wxDATAVIEW_COL_RESIZABLE );
             m_ctrl[0]->AppendColumn( column3 );
 
             // column 4 of the view control:
 
-            m_ctrl[0]->AppendProgressColumn( wxT("popularity"), 4, wxDATAVIEW_CELL_INERT, 80 );
+            m_ctrl[0]->AppendProgressColumn( "popularity", 4, wxDATAVIEW_CELL_INERT, 80 );
 
             // column 5 of the view control:
 
 
             // column 5 of the view control:
 
-            MyCustomRenderer *cr = new MyCustomRenderer( wxDATAVIEW_CELL_ACTIVATABLE, wxALIGN_RIGHT );
-            wxDataViewColumn *column5 = 
-                new wxDataViewColumn( wxT("custom"), cr, 5, -1, wxALIGN_LEFT,
+            MyCustomRenderer *cr = new MyCustomRenderer;
+            wxDataViewColumn *column5 =
+                new wxDataViewColumn( "custom", cr, 5, -1, wxALIGN_LEFT,
                                       wxDATAVIEW_COL_RESIZABLE );
             m_ctrl[0]->AppendColumn( column5 );
                                       wxDATAVIEW_COL_RESIZABLE );
             m_ctrl[0]->AppendColumn( column5 );
-            
+
 
             // select initially the ninth symphony:
             m_ctrl[0]->Select(m_music_model->GetNinthItem());
 
             // select initially the ninth symphony:
             m_ctrl[0]->Select(m_music_model->GetNinthItem());
@@ -513,36 +611,54 @@ void MyFrame::BuildDataViewCtrl(wxPanel* parent, unsigned int nPanel, unsigned l
     case 1:
         {
             wxASSERT(!m_ctrl[1] && !m_list_model);
     case 1:
         {
             wxASSERT(!m_ctrl[1] && !m_list_model);
-            m_ctrl[1] = new wxDataViewCtrl( parent, wxID_ANY, wxDefaultPosition,
+            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
                                             wxDefaultSize, style );
 
             m_list_model = new MyListModel;
             m_ctrl[1]->AssociateModel( m_list_model.get() );
 
             // the various columns
-#if 1
-            m_ctrl[1]->AppendTextColumn    (wxT("editable string"), 0, wxDATAVIEW_CELL_EDITABLE, 120 );
-            m_ctrl[1]->AppendIconTextColumn(wxIcon(wx_small_xpm),   1, wxDATAVIEW_CELL_INERT )->SetTitle( wxT("icon") );
-#else
-            m_ctrl[1]->AppendTextColumn    (wxT("editable string"), 0, wxDATAVIEW_CELL_EDITABLE );
-            m_ctrl[1]->AppendIconTextColumn(wxT("icon"),            1, wxDATAVIEW_CELL_INERT );
-#endif
+            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(
             m_ctrl[1]->AppendColumn(
-                new wxDataViewColumn(wxT("attributes"), new wxDataViewTextRendererAttr, 2 ));
+                new wxDataViewColumn("custom renderer",
+                                     new MyCustomRenderer,
+                                     MyListModel::Col_Custom)
+            );
         }
         break;
 
     case 2:
         {
             wxASSERT(!m_ctrl[2]);
         }
         break;
 
     case 2:
         {
             wxASSERT(!m_ctrl[2]);
-            wxDataViewListCtrl* lc = 
+            wxDataViewListCtrl* lc =
                 new wxDataViewListCtrl( parent, wxID_ANY, wxDefaultPosition,
                                         wxDefaultSize, style );
             m_ctrl[2] = lc;
 
                 new wxDataViewListCtrl( parent, wxID_ANY, wxDefaultPosition,
                                         wxDefaultSize, style );
             m_ctrl[2] = lc;
 
-            lc->AppendToggleColumn( wxT("Toggle") );
-            lc->AppendTextColumn( wxT("Text") );
-            lc->AppendProgressColumn( wxT("Progress") );
+            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++)
 
             wxVector<wxVariant> data;
             for (unsigned int i=0; i<10; i++)
@@ -560,28 +676,28 @@ void MyFrame::BuildDataViewCtrl(wxPanel* parent, unsigned int nPanel, unsigned l
     case 3:
         {
             wxASSERT(!m_ctrl[3]);
     case 3:
         {
             wxASSERT(!m_ctrl[3]);
-            wxDataViewTreeCtrl* tc = 
+            wxDataViewTreeCtrl* tc =
                 new wxDataViewTreeCtrl( parent, wxID_ANY, wxDefaultPosition,
                 new wxDataViewTreeCtrl( parent, wxID_ANY, wxDefaultPosition,
-                                        wxDefaultSize, style );
+                                        wxDefaultSize, style | wxDV_NO_HEADER );
             m_ctrl[3] = tc;
 
             wxImageList *ilist = new wxImageList( 16, 16 );
             ilist->Add( wxIcon(wx_small_xpm) );
             tc->SetImageList( ilist );
 
             m_ctrl[3] = tc;
 
             wxImageList *ilist = new wxImageList( 16, 16 );
             ilist->Add( wxIcon(wx_small_xpm) );
             tc->SetImageList( ilist );
 
-            wxDataViewItem parent = 
-                tc->AppendContainer( wxDataViewItem(0), wxT("The Root"), 0 );
-            tc->AppendItem( parent, wxT("Child 1"), 0 );
-            tc->AppendItem( parent, wxT("Child 2"), 0 );
-            tc->AppendItem( parent, wxT("Child 3, very long, long, long, long"), 0 );
+            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 =
 
             wxDataViewItem cont =
-                tc->AppendContainer( parent, wxT("Container child"), 0 );
-            tc->AppendItem( cont, wxT("Child 4"), 0 );
-            tc->AppendItem( cont, wxT("Child 5"), 0 );
+                tc->AppendContainer( parent, "Container child", 0 );
+            tc->AppendItem( cont, "Child 4", 0 );
+            tc->AppendItem( cont, "Child 5", 0 );
 
             tc->Expand(cont);
 
             tc->Expand(cont);
-        } 
+        }
         break;
     }
 }
         break;
     }
 }
@@ -591,7 +707,34 @@ void MyFrame::BuildDataViewCtrl(wxPanel* parent, unsigned int nPanel, unsigned l
 // MyFrame - generic event handlers
 // ----------------------------------------------------------------------------
 
 // MyFrame - generic event handlers
 // ----------------------------------------------------------------------------
 
-void MyFrame::OnPageChanged(wxBookCtrlEvent& WXUNUSED(event) )
+void MyFrame::OnClearLog( wxCommandEvent& WXUNUSED(event) )
+{
+    m_log->Clear();
+}
+
+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();
+    }
+}
+
+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();
+    }
+}
+
+void MyFrame::OnPageChanged( wxBookCtrlEvent& WXUNUSED(event) )
 {
     unsigned int nPanel = m_notebook->GetSelection();
 
 {
     unsigned int nPanel = m_notebook->GetSelection();
 
@@ -626,7 +769,7 @@ void MyFrame::OnPageChanged(wxBookCtrlEvent& WXUNUSED(event) )
     }
 }
 
     }
 }
 
-void MyFrame::OnStyleChange(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnStyleChange( wxCommandEvent& WXUNUSED(event) )
 {
     unsigned int nPanel = m_notebook->GetSelection();
 
 {
     unsigned int nPanel = m_notebook->GetSelection();
 
@@ -667,12 +810,12 @@ void MyFrame::OnQuit( wxCommandEvent& WXUNUSED(event) )
     Close(true);
 }
 
     Close(true);
 }
 
-void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnAbout( wxCommandEvent& WXUNUSED(event) )
 {
     wxAboutDialogInfo info;
     info.SetName(_("DataView sample"));
     info.SetDescription(_("This sample demonstrates wxDataViewCtrl"));
 {
     wxAboutDialogInfo info;
     info.SetName(_("DataView sample"));
     info.SetDescription(_("This sample demonstrates wxDataViewCtrl"));
-    info.SetCopyright(_T("(C) 2007-2009 Robert Roebling"));
+    info.SetCopyright(wxT("(C) 2007-2009 Robert Roebling"));
     info.AddDeveloper("Robert Roebling");
     info.AddDeveloper("Francesco Montorsi");
 
     info.AddDeveloper("Robert Roebling");
     info.AddDeveloper("Francesco Montorsi");
 
@@ -684,6 +827,8 @@ void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
 // MyFrame - event handlers for the first page
 // ----------------------------------------------------------------------------
 
 // MyFrame - event handlers for the first page
 // ----------------------------------------------------------------------------
 
+#if wxUSE_DRAG_AND_DROP
+
 void MyFrame::OnBeginDrag( wxDataViewEvent &event )
 {
     wxDataViewItem item( event.GetItem() );
 void MyFrame::OnBeginDrag( wxDataViewEvent &event )
 {
     wxDataViewItem item( event.GetItem() );
@@ -733,15 +878,17 @@ void MyFrame::OnDrop( wxDataViewEvent &event )
     wxTextDataObject obj;
     obj.SetData( wxDF_UNICODETEXT, event.GetDataSize(), event.GetDataBuffer() );
 
     wxTextDataObject obj;
     obj.SetData( wxDF_UNICODETEXT, event.GetDataSize(), event.GetDataBuffer() );
 
-    wxLogMessage(wxT("Text dropped: %s"), obj.GetText() );
+    wxLogMessage( "Text dropped: %s", obj.GetText() );
 }
 
 }
 
+#endif // wxUSE_DRAG_AND_DROP
+
 void MyFrame::OnAddMozart( wxCommandEvent& WXUNUSED(event) )
 {
 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;
     int len = m_ctrl[0]->GetSelections( items );
 {
     wxDataViewItemArray items;
     int len = m_ctrl[0]->GetSelections( items );
@@ -750,6 +897,11 @@ void MyFrame::OnDeleteMusic( wxCommandEvent& WXUNUSED(event) )
             m_music_model->Delete( items[i] );
 }
 
             m_music_model->Delete( items[i] );
 }
 
+void MyFrame::OnDeleteSelected( wxCommandEvent& WXUNUSED(event) )
+{
+    DeleteSelectedItems();
+}
+
 void MyFrame::OnDeleteYear( wxCommandEvent& WXUNUSED(event) )
 {
     m_ctrl[0]->DeleteColumn( m_ctrl[0]->GetColumn( 2 ) );
 void MyFrame::OnDeleteYear( wxCommandEvent& WXUNUSED(event) )
 {
     m_ctrl[0]->DeleteColumn( m_ctrl[0]->GetColumn( 2 ) );
@@ -758,114 +910,157 @@ void MyFrame::OnDeleteYear( wxCommandEvent& WXUNUSED(event) )
 
 void MyFrame::OnSelectNinth( wxCommandEvent& WXUNUSED(event) )
 {
 
 void MyFrame::OnSelectNinth( wxCommandEvent& WXUNUSED(event) )
 {
+    if (!m_music_model->GetNinthItem().IsOk())
+    {
+        wxLogError( "Cannot select the ninth symphony: it was removed!" );
+        return;
+    }
+
     m_ctrl[0]->Select( m_music_model->GetNinthItem() );
 }
 
     m_ctrl[0]->Select( m_music_model->GetNinthItem() );
 }
 
-void MyFrame::OnValueChanged( wxDataViewEvent &event )
+void MyFrame::OnCollapse( wxCommandEvent& WXUNUSED(event) )
 {
 {
-    if (!m_log)
-        return;
+    wxDataViewItem item = m_ctrl[0]->GetSelection();
+    if (item.IsOk())
+        m_ctrl[0]->Collapse( item );
+}
 
 
-    wxLogMessage( wxT("EVT_DATAVIEW_ITEM_VALUE_CHANGED, Item Id: %d;  Column: %d"), 
-                  event.GetItem().GetID(), event.GetColumn() );
+void MyFrame::OnExpand( wxCommandEvent& WXUNUSED(event) )
+{
+    wxDataViewItem item = m_ctrl[0]->GetSelection();
+    if (item.IsOk())
+        m_ctrl[0]->Expand( item );
 }
 
 }
 
-void MyFrame::OnActivated( wxDataViewEvent &event )
+void MyFrame::OnShowCurrent(wxCommandEvent& WXUNUSED(event))
 {
 {
-    if(!m_log)
+    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.");
+    }
+}
+
+void MyFrame::OnSetNinthCurrent(wxCommandEvent& WXUNUSED(event))
+{
+    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() );
     wxString title = m_music_model->GetTitle( event.GetItem() );
-    wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, Item: %s"), title );
+    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() );
+    wxLogMessage( "wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, Item: %s", title );
 
     if (m_ctrl[0]->IsExpanded( event.GetItem() ))
 
     if (m_ctrl[0]->IsExpanded( event.GetItem() ))
-        wxLogMessage(wxT("Item: %s is expanded"), title );
+    {
+        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);
 
     m_ctrl[0]->PopupMenu(&menu);
+}
 
 
-    wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, Item: %s Value: %s"),
-                 title.GetData(), event.GetValue().GetString());
+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();
+
+    int pos = m_ctrl[1]->GetColumnPosition( event.GetDataViewColumn() );
+
+    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 )
@@ -874,51 +1069,41 @@ 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_ctrl[0]->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_ctrl[0]->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_ctrl[0]->GetColumnPosition( event.GetDataViewColumn() );
 
-    wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED, Column position: %d"), pos );
+    wxLogMessage( "wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED, Column position: %d", pos );
 }
 
 }
 
-void MyFrame::OnRightClick( wxMouseEvent &event )
+void MyFrame::OnDataViewChar(wxKeyEvent& event)
 {
 {
-    if(!m_log)
-        return;
-
-    wxLogMessage(wxT("wxEVT_MOUSE_RIGHT_UP, Click Point is X: %d, Y: %d"), 
-                 event.GetX(), event.GetY());
+    if ( event.GetKeyCode() == WXK_DELETE )
+        DeleteSelectedItems();
+    else
+        event.Skip();
 }
 
 }
 
-
 // ----------------------------------------------------------------------------
 // MyFrame - event handlers for the second page
 // ----------------------------------------------------------------------------
 
 void MyFrame::OnPrependList( wxCommandEvent& WXUNUSED(event) )
 {
 // ----------------------------------------------------------------------------
 // MyFrame - event handlers for the second page
 // ----------------------------------------------------------------------------
 
 void MyFrame::OnPrependList( wxCommandEvent& WXUNUSED(event) )
 {
-    m_list_model->Prepend(wxT("Test"));
+    m_list_model->Prepend("Test");
 }
 
 void MyFrame::OnDeleteList( wxCommandEvent& WXUNUSED(event) )
 }
 
 void MyFrame::OnDeleteList( wxCommandEvent& WXUNUSED(event) )
@@ -940,3 +1125,49 @@ void MyFrame::OnAddMany(wxCommandEvent& WXUNUSED(event))
     m_list_model->AddMany();
 }
 
     m_list_model->AddMany();
 }
 
+void MyFrame::OnHideAttributes(wxCommandEvent& WXUNUSED(event))
+{
+    m_attributes->SetHidden(true);
+}
+
+void MyFrame::OnShowAttributes(wxCommandEvent& WXUNUSED(event))
+{
+    m_attributes->SetHidden(false);
+}
+
+// ----------------------------------------------------------------------------
+// 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;
+
+    ctrl->DeleteItem(selected);
+}
+
+void MyFrame::OnDeleteAllTreeItems(wxCommandEvent& WXUNUSED(event))
+{
+    wxDataViewTreeCtrl* ctrl = (wxDataViewTreeCtrl*) m_ctrl[3];
+    ctrl->DeleteAllItems();
+}
+
+void MyFrame::OnAddTreeItem(wxCommandEvent& WXUNUSED(event))
+{
+    wxDataViewTreeCtrl* ctrl = (wxDataViewTreeCtrl*) m_ctrl[3];
+    wxDataViewItem selected = ctrl->GetSelection();
+    if (ctrl->IsContainer(selected))
+        ctrl->AppendItem( selected, "Item", 0 );
+}
+
+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 );
+}
+
wxWidgets (Impactor)