X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d8331a013b9cd0109a3a6d3c4e7b60b0b524eb06..f62edb0ecd881e790dd72b7f49da29e943200edb:/samples/dataview/dataview.cpp diff --git a/samples/dataview/dataview.cpp b/samples/dataview/dataview.cpp index 7d958749da..c9fc9840d4 100644 --- a/samples/dataview/dataview.cpp +++ b/samples/dataview/dataview.cpp @@ -2,7 +2,7 @@ // Name: dataview.cpp // Purpose: wxDataViewCtrl wxWidgets sample // Author: Robert Roebling -// Modified by: Francesco Montorsi +// Modified by: Francesco Montorsi, Bo Yang // Created: 06/01/06 // RCS-ID: $Id$ // Copyright: (c) Robert Roebling @@ -39,6 +39,63 @@ #define DATAVIEW_DEFAULT_STYLE (wxDV_MULTIPLE|wxDV_HORIZ_RULES|wxDV_VERT_RULES) +// ------------------------------------- +// MySpinCtrlInPlaceRenderer +// ------------------------------------- + +class MySpinCtrlInPlaceRenderer: public wxDataViewCustomRenderer +{ +public: + MySpinCtrlInPlaceRenderer() : + wxDataViewCustomRenderer( wxT("long"), wxDATAVIEW_CELL_EDITABLE ) { } + + + virtual bool HasEditorCtrl() + { + return true; + } + virtual wxControl* CreateEditorCtrl( wxWindow *parent, wxRect labelRect, const wxVariant &value ) + { + long l = value; + return new wxSpinCtrl( parent, wxID_ANY, wxEmptyString, + labelRect.GetTopLeft(), labelRect.GetSize(), -0, -1, 2010, l ); + } + virtual bool GetValueFromEditorCtrl( wxControl* editor, wxVariant &value ) + { + wxSpinCtrl *sc = (wxSpinCtrl*) editor; + long l = sc->GetValue(); + value = l; + return true; + } + + bool Render( wxRect rect, wxDC *dc, int WXUNUSED(state) ) + { + wxString str; + str.Printf( wxT("%d"), (int) m_data ); + dc->SetTextForeground( *wxBLACK ); + dc->DrawText( str, rect.x, rect.y ); + return true; + } + wxSize GetSize() const + { + return wxSize(80,16); + } + bool SetValue( const wxVariant &value ) + { + m_data = value.GetLong(); + return true; + } + bool GetValue( wxVariant &value ) const + { + value = m_data; + return true; + } + +private: + long m_data; +}; + + // ------------------------------------- // MyMusicModel @@ -66,7 +123,7 @@ class MyMusicModelNode { public: MyMusicModelNode( MyMusicModelNode* parent, - const wxString &title, const wxString &artist, const wxString &year ) + const wxString &title, const wxString &artist, int year ) { m_parent = parent; m_title = title; @@ -80,6 +137,7 @@ public: { m_parent = parent; m_title = branch; + m_year = -1; m_isContainer = true; } @@ -106,7 +164,7 @@ public: public: wxString m_title; wxString m_artist; - wxString m_year; + int m_year; private: MyMusicModelNode *m_parent; @@ -127,25 +185,37 @@ public: m_pop = new MyMusicModelNode( m_root, "Pop music" ); m_root->Append( m_pop ); m_pop->Append( new MyMusicModelNode( m_pop, - "You are not alone", "Michael Jackson", "1995" ) ); + "You are not alone", "Michael Jackson", 1995 ) ); m_pop->Append( new MyMusicModelNode( m_pop, - "Take a bow", "Madonna", "1994" ) ); + "Take a bow", "Madonna", 1994 ) ); m_classical = new MyMusicModelNode( m_root, "Classical music" ); m_root->Append( m_classical ); m_classical->Append( new MyMusicModelNode( m_classical, - "Ninth symphony", "Ludwig van Beethoven", "1824" ) ); + "Ninth symphony", "Ludwig van Beethoven", 1824 ) ); m_classical->Append( new MyMusicModelNode( m_classical, - "German Requiem", "Johannes Brahms", "1868" ) ); + "German Requiem", "Johannes Brahms", 1868 ) ); m_classicalMusicIsKnownToControl = false; } + // helper method for wxLog + + wxString GetTitle( const wxDataViewItem &item ) + { + MyMusicModelNode *node = (MyMusicModelNode*) item.GetID(); + if (!node) + return wxEmptyString; + + return node->m_title; + } + // helper methods to change the model - void AddToClassical( const wxString &title, const wxString &artist, const wxString &year ) + 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) @@ -160,16 +230,19 @@ public: void Delete( const wxDataViewItem &item ) { MyMusicModelNode *node = (MyMusicModelNode*) item.GetID(); + wxDataViewItem parent( node->GetParent() ); + node->GetParent()->GetChildren().Remove( node ); delete node; // notify control - ItemDeleted( item ); + ItemDeleted( parent, item ); } // override sorting to always sort branches ascendingly - int Compare( const wxDataViewItem &item1, const wxDataViewItem &item2 ) + int Compare( const wxDataViewItem &item1, const wxDataViewItem &item2, + unsigned int column, bool ascending ) { if (IsContainer(item1) && IsContainer(item2)) { @@ -189,7 +262,7 @@ public: return litem1-litem2; } - return wxDataViewModel::Compare( item1, item2 ); + return wxDataViewModel::Compare( item1, item2, column, ascending ); } // implementation of base class virtuals to define model @@ -201,6 +274,9 @@ public: virtual wxString GetColumnType( unsigned int col ) const { + if (col == 2) + return "long"; + return "string"; } @@ -212,8 +288,19 @@ public: { case 0: variant = node->m_title; break; case 1: variant = node->m_artist; break; - case 2: variant = node->m_year; break; - default: wxLogError( "MyMusicModel::GetValue: wrong column" ); + case 2: variant = (long) node->m_year; break; + default: + { + wxLogError( "MyMusicModel::GetValue: wrong column" ); + + // provoke a crash when mouse button down + wxMouseState state = wxGetMouseState(); + if (state.ShiftDown()) + { + char *crash = 0; + *crash = 0; + } + } } } @@ -223,11 +310,12 @@ public: MyMusicModelNode *node = (MyMusicModelNode*) item.GetID(); switch (col) { - case 0: node->m_title = variant.GetString(); break; - case 1: node->m_artist = variant.GetString(); break; - case 2: node->m_year = variant.GetString(); break; + 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; default: wxLogError( "MyMusicModel::SetValue: wrong column" ); } + return false; } virtual wxDataViewItem GetParent( const wxDataViewItem &item ) const @@ -256,48 +344,36 @@ public: return node->IsContainer(); } - virtual wxDataViewItem GetFirstChild( const wxDataViewItem &parent ) const + virtual unsigned int GetChildren( const wxDataViewItem &parent, wxDataViewItemArray &array ) const { MyMusicModelNode *node = (MyMusicModelNode*) parent.GetID(); if (!node) - return wxDataViewItem( (void*) m_root ); + { + array.Add( wxDataViewItem( (void*) m_root ) ); + return 1; + } - if (node->GetChildCount() == 0) - return wxDataViewItem( 0 ); - if (node == m_classical) { MyMusicModel *model = (MyMusicModel*)(const MyMusicModel*) this; model->m_classicalMusicIsKnownToControl = true; } - MyMusicModelNode *first_child = node->GetChildren().Item( 0 ); - return wxDataViewItem( (void*) first_child ); + if (node->GetChildCount() == 0) + { + return 0; + } + + 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; } - virtual wxDataViewItem GetNextSibling( const wxDataViewItem &item ) const - { - MyMusicModelNode *node = (MyMusicModelNode*) item.GetID(); - - // "MyMusic" has no siblings in our model - if (node == m_root) - return wxDataViewItem(0); - - MyMusicModelNode *parent = node->GetParent(); - int pos = parent->GetChildren().Index( node ); - - // Something went wrong - if (pos == wxNOT_FOUND) - return wxDataViewItem(0); - - // No more children - if (pos == parent->GetChildCount()-1) - return wxDataViewItem(0); - - node = parent->GetChildren().Item( pos+1 ); - return wxDataViewItem( (void*) node ); - } - private: MyMusicModelNode* m_root; MyMusicModelNode* m_pop; @@ -318,6 +394,8 @@ public: str.Printf( "row number %d", i ); m_array.Add( str ); } + + m_icon = wxIcon( null_xpm ); } // helper methods to change the model @@ -339,11 +417,14 @@ public: virtual unsigned int GetColumnCount() const { - return 2; + return 3; } virtual wxString GetColumnType( unsigned int col ) const { + if (col == 1) + return "wxDataViewIconText"; + return "string"; } @@ -358,6 +439,11 @@ public: if (col==0) { variant = m_array[ row ]; + } else + if (col==1) + { + wxDataViewIconText data( "test", m_icon ); + variant << data; } else { @@ -380,6 +466,7 @@ public: } wxArrayString m_array; + wxIcon m_icon; }; // ------------------------------------- @@ -415,6 +502,23 @@ public: void OnValueChanged( wxDataViewEvent &event ); void OnItemAdded( wxDataViewEvent &event ); void OnItemDeleted( wxDataViewEvent &event ); + + 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 OnRightClick( wxMouseEvent &event ); + void OnGoto( wxCommandEvent &event); private: wxDataViewCtrl* m_musicCtrl; @@ -422,8 +526,11 @@ private: wxDataViewCtrl* m_listCtrl; wxObjectDataPtr m_list_model; + + wxDataViewColumn * m_col; wxTextCtrl * m_log; + wxLog *m_logOld; private: DECLARE_EVENT_TABLE() @@ -442,7 +549,7 @@ bool MyApp::OnInit(void) // build the first frame MyFrame *frame = - new MyFrame(NULL, wxT("wxDataViewCtrl feature test"), 10, 10, 700, 440); + new MyFrame(NULL, wxT("wxDataViewCtrl feature test"), 40, 40, 800, 440); frame->Show(true); SetTopWindow(frame); @@ -471,7 +578,8 @@ enum ID_DELETE_MUSIC = 101, ID_PREPEND_LIST = 200, - ID_DELETE_LIST = 201 + ID_DELETE_LIST = 201, + ID_GOTO = 202 }; BEGIN_EVENT_TABLE(MyFrame, wxFrame) @@ -481,15 +589,35 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame) EVT_BUTTON( ID_DELETE_MUSIC, MyFrame::OnDeleteMusic ) EVT_BUTTON( ID_PREPEND_LIST, MyFrame::OnPrependList ) EVT_BUTTON( ID_DELETE_LIST, MyFrame::OnDeleteList ) + EVT_BUTTON( ID_GOTO, MyFrame::OnGoto) + EVT_DATAVIEW_MODEL_ITEM_ADDED( ID_MUSIC_CTRL, MyFrame::OnItemAdded ) EVT_DATAVIEW_MODEL_ITEM_DELETED( ID_MUSIC_CTRL, MyFrame::OnItemDeleted ) EVT_DATAVIEW_MODEL_VALUE_CHANGED( ID_MUSIC_CTRL, MyFrame::OnValueChanged ) + EVT_DATAVIEW_MODEL_ITEM_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_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_RIGHT_UP(MyFrame::OnRightClick) END_EVENT_TABLE() MyFrame::MyFrame(wxFrame *frame, wxChar *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)); @@ -513,17 +641,25 @@ MyFrame::MyFrame(wxFrame *frame, wxChar *title, int x, int y, int w, int h): // MyMusic m_musicCtrl = new wxDataViewCtrl( this, ID_MUSIC_CTRL, wxDefaultPosition, - wxDefaultSize ); + wxDefaultSize, wxDV_MULTIPLE ); m_music_model = new MyMusicModel; m_musicCtrl->AssociateModel( m_music_model.get() ); - m_musicCtrl->AppendTextColumn( "Title", 0, wxDATAVIEW_CELL_INERT, 200, + wxDataViewColumn *col = m_musicCtrl->AppendTextColumn( "Title", 0, wxDATAVIEW_CELL_INERT, 200, DEFAULT_ALIGN, wxDATAVIEW_COL_SORTABLE ); - m_musicCtrl->AppendTextColumn( "Artist", 1, wxDATAVIEW_CELL_EDITABLE, 200, +#if 0 + // Call this and sorting is enabled + // immediatly upon start up. + col->SetSortOrder( true ); +#endif + + m_musicCtrl->AppendTextColumn( "Artist", 1, wxDATAVIEW_CELL_EDITABLE, 150, DEFAULT_ALIGN, wxDATAVIEW_COL_SORTABLE ); - m_musicCtrl->AppendTextColumn( "Year", 2, wxDATAVIEW_CELL_INERT, 50, - DEFAULT_ALIGN ); + + MySpinCtrlInPlaceRenderer *sr = new MySpinCtrlInPlaceRenderer; + wxDataViewColumn *column = new wxDataViewColumn( "year", sr, 2, -1, wxALIGN_CENTRE, wxDATAVIEW_COL_SORTABLE ); + m_musicCtrl->AppendColumn( column ); data_sizer->Add( m_musicCtrl, 3, wxGROW ); @@ -532,13 +668,14 @@ MyFrame::MyFrame(wxFrame *frame, wxChar *title, int x, int y, int w, int h): // MyList m_listCtrl = new wxDataViewCtrl( this, wxID_ANY, wxDefaultPosition, - wxDefaultSize ); + wxDefaultSize, wxDV_MULTIPLE ); m_list_model = new MyListModel; m_listCtrl->AssociateModel( m_list_model.get() ); m_listCtrl->AppendTextColumn( "editable string", 0, wxDATAVIEW_CELL_EDITABLE, 120 ); - m_listCtrl->AppendTextColumn( "index", 1, wxDATAVIEW_CELL_INERT, 120 ); + m_listCtrl->AppendIconTextColumn( "icon", 1, wxDATAVIEW_CELL_INERT, 60 ); + m_listCtrl->AppendTextColumn( "index", 2, wxDATAVIEW_CELL_INERT, 120 ); data_sizer->Add( m_listCtrl, 2, wxGROW ); @@ -553,11 +690,14 @@ MyFrame::MyFrame(wxFrame *frame, wxChar *title, int x, int y, int w, int h): button_sizer->Add( 10, 10, 1 ); button_sizer->Add( new wxButton( this, ID_PREPEND_LIST, "Prepend"), 0, wxALL, 10 ); button_sizer->Add( new wxButton( this, ID_DELETE_LIST, "Delete selected"), 0, wxALL, 10 ); + button_sizer->Add( new wxButton( this, ID_GOTO, "Goto 50"), 0, wxALL, 10 ); main_sizer->Add( button_sizer, 0, wxGROW, 0 ); m_log = new wxTextCtrl( this, -1, "", wxDefaultPosition, wxDefaultSize, wxTE_MULTILINE ); - + m_logOld = wxLog::SetActiveTarget(new wxLogTextCtrl(m_log)); + wxLogMessage("This is the log window"); + main_sizer->Add( m_log, 1, wxGROW ); SetSizer( main_sizer ); @@ -570,14 +710,16 @@ void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) ) void MyFrame::OnAddMozart(wxCommandEvent& WXUNUSED(event) ) { - m_music_model->AddToClassical( "Kleine Nachtmusik", "Wolfgang Mozart", "1787" ); + m_music_model->AddToClassical( "Kleine Nachtmusik", "Wolfgang Mozart", 1787 ); } void MyFrame::OnDeleteMusic(wxCommandEvent& WXUNUSED(event) ) { - wxDataViewItem item = m_musicCtrl->GetSelection(); - if (item.IsOk()) - m_music_model->Delete( item ); + wxDataViewItemArray items; + int len = m_musicCtrl->GetSelections( items ); + for( int i = 0; i < len; i ++ ) + if (items[i].IsOk()) + m_music_model->Delete( items[i] ); } void MyFrame::OnPrependList( wxCommandEvent& WXUNUSED(event) ) @@ -587,9 +729,11 @@ void MyFrame::OnPrependList( wxCommandEvent& WXUNUSED(event) ) void MyFrame::OnDeleteList( wxCommandEvent& WXUNUSED(event) ) { - wxDataViewItem item = m_listCtrl->GetSelection(); - if (item.IsOk()) - m_list_model->DeleteItem( item ); + wxDataViewItemArray items; + int len = m_listCtrl->GetSelections( items ); + for( int i = 0; i < len; i ++ ) + if (items[i].IsOk()) + m_list_model->DeleteItem( items[i] ); } void MyFrame::OnItemAdded( wxDataViewEvent &event ) @@ -597,7 +741,7 @@ void MyFrame::OnItemAdded( wxDataViewEvent &event ) if (!m_log) return; - m_log->AppendText( "EVT_DATAVIEW_MODEL_ITEM_ADDED\n" ); + wxLogMessage("wxEVT_COMMAND_DATAVIEW_MODEL_ITEM_ADDED, Item Id: %d",event.GetItem().GetID()); } void MyFrame::OnItemDeleted( wxDataViewEvent &event ) @@ -605,7 +749,7 @@ void MyFrame::OnItemDeleted( wxDataViewEvent &event ) if (!m_log) return; - m_log->AppendText( "EVT_DATAVIEW_MODEL_ITEM_DELETED\n" ); + wxLogMessage( "EVT_DATAVIEW_MODEL_ITEM_DELETED, Item Id: %d", event.GetItem().GetID() ); } void MyFrame::OnValueChanged( wxDataViewEvent &event ) @@ -613,7 +757,127 @@ void MyFrame::OnValueChanged( wxDataViewEvent &event ) if (!m_log) return; - m_log->AppendText( "EVT_DATAVIEW_MODEL_VALUE_CHANGED\n" ); + wxLogMessage( "EVT_DATAVIEW_MODEL_VALUE_CHANGED, Item Id: %d; Column: %d", event.GetItem().GetID(), event.GetColumn() ); +} + +void MyFrame::OnActivated( wxDataViewEvent &event ) +{ + if(!m_log) + return; + + wxString title = m_music_model->GetTitle( event.GetItem() ); + wxLogMessage("wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, Item: %s", title ); +} + +void MyFrame::OnSelectionChanged( wxDataViewEvent &event ) +{ + if(!m_log) + return; + + wxString title = m_music_model->GetTitle( event.GetItem() ); + if (title.empty()) + title = "None"; + + wxLogMessage("wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, First selected Item: %s", title ); +} + +void MyFrame::OnExpanding( wxDataViewEvent &event ) +{ + if (!m_log) + return; + + wxString title = m_music_model->GetTitle( event.GetItem() ); + wxLogMessage("wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING, Item: %s", title ); +} + + +void MyFrame::OnEditingStarted( wxDataViewEvent &event ) +{ + if (!m_log) + return; + + wxString title = m_music_model->GetTitle( event.GetItem() ); + wxLogMessage("wxEVT_COMMAND_DATAVIEW_ITEM_EDITING_STARTED, Item: %s", title ); +} + +void MyFrame::OnEditingDone( wxDataViewEvent &event ) +{ + if (!m_log) + return; + + wxString title = m_music_model->GetTitle( event.GetItem() ); + wxLogMessage("wxEVT_COMMAND_DATAVIEW_ITEM_EDITING_DONE, Item: %s", title ); +} + +void MyFrame::OnExpanded( wxDataViewEvent &event ) +{ + if (!m_log) + return; + + wxString title = m_music_model->GetTitle( event.GetItem() ); + wxLogMessage("wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED, Item: %s", title ); +} + +void MyFrame::OnCollapsing( wxDataViewEvent &event ) +{ + if (!m_log) + return; + + wxString title = m_music_model->GetTitle( event.GetItem() ); + wxLogMessage("wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING, Item: %s", title ); +} + +void MyFrame::OnCollapsed( wxDataViewEvent &event ) +{ + if (!m_log) + return; + + wxString title = m_music_model->GetTitle( event.GetItem() ); + wxLogMessage("wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED, Item: %s", title ); +} + +void MyFrame::OnHeaderClick( wxDataViewEvent &event ) +{ + if(!m_log) + return; + + int pos = m_musicCtrl->GetColumnPosition( event.GetDataViewColumn() ); + + wxLogMessage("wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, Column position: %d", pos ); +} + +void MyFrame::OnHeaderRightClick( wxDataViewEvent &event ) +{ + if(!m_log) + return; + + int pos = m_musicCtrl->GetColumnPosition( event.GetDataViewColumn() ); + + wxLogMessage("wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK, Column position: %d", pos ); +} + +void MyFrame::OnSorted( wxDataViewEvent &event ) +{ + if(!m_log) + return; + + int pos = m_musicCtrl->GetColumnPosition( event.GetDataViewColumn() ); + + wxLogMessage("wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED, Column position: %d", pos ); +} + +void MyFrame::OnRightClick( wxMouseEvent &event ) +{ + if(!m_log) + return; + + wxLogMessage("wxEVT_MOUSE_RIGHT_UP, Click Point is X: %d, Y: %d", event.GetX(), event.GetY()); +} + +void MyFrame::OnGoto( wxCommandEvent &event) +{ + wxDataViewItem item = m_list_model->GetItem( 50 ); + m_listCtrl->EnsureVisible(item,m_col); } void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )