added support for item attributes in virtual list control

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10972 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/listctrl/listtest.cpp

@@ -657,6 +657,22 @@ void MyListCtrl::OnListKeyDown(wxListEvent& event)
 {
     switch ( event.GetCode() )
     {
+        case 'c':
+            {
+                wxListItem info;
+                info.m_itemId = event.GetIndex();
+                GetItem(info);
+
+                wxListItemAttr *attr = info.GetAttributes();
+                if ( !attr || !attr->HasTextColour() )
+                {
+                    info.SetTextColour(*wxCYAN);
+
+                    SetItem(info);
+                }
+            }
+            break;
+
         case WXK_DELETE:
             DeleteItem(event.GetIndex());
 
@@ -708,6 +724,11 @@ int MyListCtrl::OnGetItemImage(long item) const
     return 0;
 }
 
+wxListItemAttr *MyListCtrl::OnGetItemAttr(long item) const
+{
+    return item % 2 ? NULL : (wxListItemAttr *)&m_attr;
+}
+
 void MyListCtrl::InsertItemInReportView(int i)
 {
     wxString buf;