wxRadioButtons in the same group no longer have to be consecutive

(there may be intervening controls). Without this fix, an out-of-sync
assert is generated when clicking on a radio button and then calling
GetValue().


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@29971 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -227,6 +227,7 @@ wxMac:
 wxMSW:
 
 - fixed enhanced metafiles loading from files (Andreas Goebel)
+- Group of wxRadioButtons no longer have to be consecutive
 
 
 2.5.3

src/msw/radiobut.cpp

@@ -182,13 +182,14 @@ void wxRadioButton::SetValue(bool value)
             {
                 wxRadioButton *btn = wxDynamicCast(nodeBefore->GetData(),
                                                    wxRadioButton);
-                if ( !btn )
+                if ( btn && btn->HasFlag(wxRB_SINGLE) )
                 {
-                    // the radio buttons in a group must be consecutive, so
-                    // there are no more of them
+                    // A wxRB_SINGLE button isn't part of this group
                     break;
                 }
                 
+                if (btn)
+                {
                     btn->SetValue(false);
 
                     if ( btn->HasFlag(wxRB_GROUP) )
@@ -199,6 +200,7 @@ void wxRadioButton::SetValue(bool value)
                     }
                 }
             }
+        }
 
         // ... and also turn off all buttons after this one
         for ( wxWindowList::compatibility_iterator nodeAfter = nodeThis->GetNext();
@@ -208,12 +210,13 @@ void wxRadioButton::SetValue(bool value)
             wxRadioButton *btn = wxDynamicCast(nodeAfter->GetData(),
                                                wxRadioButton);
 
-            if ( !btn || btn->HasFlag(wxRB_GROUP) )
+            if ( btn && (btn->HasFlag(wxRB_GROUP) || btn->HasFlag(wxRB_SINGLE) ) )
             {
                 // no more buttons or the first button of the next group
                 break;
             }
 
+            if (btn)
                 btn->SetValue(false);
         }
     }