Add a simple test of wxDataViewIndexListModel to the sample

This is useful to investigate inconsistencies in its behaviour between
the generic and the native GTK versions that can't be easily checked in
the automatic unit tests.

samples/dataview/dataview.cpp

@@ -118,6 +118,9 @@ private:
     void OnAddTreeItem(wxCommandEvent& event);
     void OnAddTreeContainerItem(wxCommandEvent& event);
 
+    void OnIndexListUseEnglish(wxCommandEvent&) { FillIndexList(Lang_English); }
+    void OnIndexListUseFrench(wxCommandEvent&) { FillIndexList(Lang_French); }
+
     void OnValueChanged( wxDataViewEvent &event );
 
     void OnActivated( wxDataViewEvent &event );
@@ -160,6 +163,11 @@ private:
     // helper used by both OnDeleteSelected() and OnDataViewChar()
     void DeleteSelectedItems();
 
+    // helper for the index list model fills the model with the weekday names
+    // in the specified language
+    enum Lang { Lang_English, Lang_French };
+    void FillIndexList(Lang lang);
+
 
     wxNotebook* m_notebook;
 
@@ -171,16 +179,18 @@ private:
         Page_ListStore,
         Page_TreeStore,
         Page_VarHeight,
+        Page_IndexList,
         Page_Max
     };
 
     wxDataViewCtrl* m_ctrl[Page_Max];
 
-    // the models associated with the first two DVC:
+    // Some of the models associated with the controls:
 
     wxObjectDataPtr<MyMusicTreeModel> m_music_model;
     wxObjectDataPtr<MyLongMusicTreeModel> m_long_music_model;
     wxObjectDataPtr<MyListModel> m_list_model;
+    wxObjectDataPtr<MyIndexListModel> m_index_list_model;
 
     // other data:
 
@@ -427,7 +437,11 @@ enum
     ID_DELETE_TREE_ITEM = 400,
     ID_DELETE_ALL_TREE_ITEMS = 401,
     ID_ADD_TREE_ITEM = 402,
-    ID_ADD_TREE_CONTAINER_ITEM = 403
+    ID_ADD_TREE_CONTAINER_ITEM = 403,
+
+    // Index list model page
+    ID_INDEX_LIST_USE_ENGLISH = 500,
+    ID_INDEX_LIST_USE_FRENCH
 };
 
 wxBEGIN_EVENT_TABLE(MyFrame, wxFrame)
@@ -474,6 +488,9 @@ wxBEGIN_EVENT_TABLE(MyFrame, wxFrame)
     EVT_BUTTON( ID_ADD_TREE_ITEM, MyFrame::OnAddTreeItem )
     EVT_BUTTON( ID_ADD_TREE_CONTAINER_ITEM, MyFrame::OnAddTreeContainerItem )
 
+    EVT_BUTTON( ID_INDEX_LIST_USE_ENGLISH, MyFrame::OnIndexListUseEnglish )
+    EVT_BUTTON( ID_INDEX_LIST_USE_FRENCH, MyFrame::OnIndexListUseFrench )
+
     EVT_DATAVIEW_ITEM_VALUE_CHANGED( ID_MUSIC_CTRL, MyFrame::OnValueChanged )
 
     EVT_DATAVIEW_ITEM_ACTIVATED(ID_MUSIC_CTRL, MyFrame::OnActivated )
@@ -672,6 +689,24 @@ MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int
     fifthPanelSz->Add(m_ctrl[Page_VarHeight], 1, wxGROW | wxALL, 5);
     fifthPanel->SetSizerAndFit(fifthPanelSz);
 
+    // page showing the indexed list model
+    // -----------------------------------
+
+    wxPanel* sixthPanel = new wxPanel(m_notebook, wxID_ANY);
+
+    BuildDataViewCtrl(sixthPanel, Page_IndexList);
+
+    wxBoxSizer *button_sizer6 = new wxBoxSizer(wxHORIZONTAL);
+    button_sizer6->Add(new wxButton(sixthPanel, ID_INDEX_LIST_USE_ENGLISH, "&English"),
+                       wxSizerFlags().DoubleBorder());
+    button_sizer6->Add(new wxButton(sixthPanel, ID_INDEX_LIST_USE_FRENCH, "&French"),
+                       wxSizerFlags().DoubleBorder());
+
+    wxSizer *sixthPanelSz = new wxBoxSizer(wxVERTICAL);
+    sixthPanelSz->Add(m_ctrl[Page_IndexList], wxSizerFlags(1).Expand().Border());
+    sixthPanelSz->Add(button_sizer6);
+    sixthPanel->SetSizerAndFit(sixthPanelSz);
+
 
     // complete GUI
     // ------------
@@ -680,7 +715,8 @@ MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int
     m_notebook->AddPage(secondPanel, "MyListModel");
     m_notebook->AddPage(thirdPanel, "wxDataViewListCtrl");
     m_notebook->AddPage(fourthPanel, "wxDataViewTreeCtrl");
-    m_notebook->AddPage(fifthPanel, "wxDataViewTreeCtrl Variable line height");
+    m_notebook->AddPage(fifthPanel, "Variable line height");
+    m_notebook->AddPage(sixthPanel, "MyIndexListModel");
 
     wxSizer* mainSizer = new wxBoxSizer(wxVERTICAL);
 
@@ -929,6 +965,21 @@ void MyFrame::BuildDataViewCtrl(wxPanel* parent, unsigned int nPanel, unsigned l
             m_ctrl[Page_VarHeight]->AppendColumn(column1);
         }
         break;
+
+    case Page_IndexList:
+        {
+            m_ctrl[Page_IndexList] = new wxDataViewCtrl(parent, wxID_ANY,
+                                                        wxDefaultPosition,
+                                                        wxDefaultSize,
+                                                        style);
+
+            m_index_list_model = new MyIndexListModel;
+            m_ctrl[Page_IndexList]->AssociateModel(m_index_list_model.get());
+            m_ctrl[Page_IndexList]->AppendTextColumn("String", 0);
+
+            FillIndexList(Lang_English);
+        }
+        break;
     }
 }
 
@@ -1616,3 +1667,19 @@ void MyFrame::OnSortByFirstColumn(wxCommandEvent& event)
     else
         col->UnsetAsSortKey();
 }
+
+// ----------------------------------------------------------------------------
+// Index list model page
+// ----------------------------------------------------------------------------
+
+void MyFrame::FillIndexList(Lang lang)
+{
+    const int DAYS_PER_WEEK = 7;
+    const wxString weekdays[2][DAYS_PER_WEEK] =
+    {
+        { "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun" },
+        { "Lun", "Mar", "Mer", "Jeu", "Ven", "Sam", "Dim" },
+    };
+
+    m_index_list_model->Fill(wxArrayString(DAYS_PER_WEEK, weekdays[lang]));
+}