Demonstrate checkboxes in virtual wxListCtrl

samples/listctrl/listtest.cpp

@@ -44,6 +44,7 @@
 #include "wx/sizer.h"
 #include "wx/sysopt.h"
 #include "wx/numdlg.h"
+#include "wx/selstore.h"
 
 #include "listtest.h"
 
@@ -1204,6 +1205,11 @@ void MyListCtrl::OnChecked(wxListEvent& event)
 {
     LogEvent(event, "OnChecked");
 
+    if ( IsVirtual() )
+    {
+        CheckItem(event.GetIndex(), true);
+    }
+
     event.Skip();
 }
 
@@ -1211,6 +1217,11 @@ void MyListCtrl::OnUnChecked(wxListEvent& event)
 {
     LogEvent(event, "OnUnChecked");
 
+    if ( IsVirtual() )
+    {
+        CheckItem(event.GetIndex(), false);
+    }
+
     event.Skip();
 }
 
@@ -1419,6 +1430,36 @@ wxString MyListCtrl::OnGetItemText(long item, long column) const
     }
 }
 
+void MyListCtrl::CheckItem(long item, bool check)
+{
+    if ( IsVirtual() )
+    {
+        m_checked.SelectItem(item, check);
+        RefreshItem(item);
+    }
+    else
+    {
+        wxListCtrl::CheckItem(item, check);
+    }
+}
+
+bool MyListCtrl::IsItemChecked(long item) const
+{
+    if ( IsVirtual() )
+    {
+        return m_checked.IsSelected(item);
+    }
+    else
+    {
+        return wxListCtrl::IsItemChecked(item);
+    }
+}
+
+bool MyListCtrl::OnGetItemIsChecked(long item) const
+{
+    return IsItemChecked(item);
+}
+
 int MyListCtrl::OnGetItemColumnImage(long item, long column) const
 {
     if (!column)

samples/listctrl/listtest.h

@@ -74,6 +74,9 @@ public:
 
     void OnRightClick(wxMouseEvent& event);
 
+    virtual void CheckItem(long item, bool check) wxOVERRIDE;
+    virtual bool IsItemChecked(long item) const wxOVERRIDE;
+
 private:
     void ShowContextMenu(const wxPoint& pos);
     wxLog *m_logOld;
@@ -83,11 +86,14 @@ private:
     void LogColEvent(const wxListEvent& event, const wxString& eventName);
 
     virtual wxString OnGetItemText(long item, long column) const wxOVERRIDE;
+    virtual bool OnGetItemIsChecked(long item) const wxOVERRIDE;
     virtual int OnGetItemColumnImage(long item, long column) const wxOVERRIDE;
     virtual wxItemAttr *OnGetItemAttr(long item) const wxOVERRIDE;
 
     long m_updated;
 
+    // checked boxes in virtual list
+    wxSelectionStore m_checked;
 
     wxDECLARE_NO_COPY_CLASS(MyListCtrl);
     wxDECLARE_EVENT_TABLE();