wxListBox in wxUniv need to overwrite DoListHistTest function, otherwise Listbox::HitTest will call DoListHitTest in wx/listbox.h, which will always return wxNOT_FOUND

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77792 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/univ/listbox.h

@@ -116,6 +116,8 @@ protected:
                               void **clientData,
                               wxClientDataType type) wxOVERRIDE;
 
+    virtual int DoListHitTest(const wxPoint& point) const wxOVERRIDE;
+
     // universal wxComboBox implementation internally uses wxListBox
     friend class WXDLLIMPEXP_FWD_CORE wxComboBox;
 

src/univ/listbox.cpp

@@ -1112,6 +1112,34 @@ void wxListBox::Activate(int item)
     }
 }
 
+// ----------------------------------------------------------------------------
+// hittest
+// ----------------------------------------------------------------------------
+
+int wxListBox::DoListHitTest(const wxPoint& point) const
+{
+    if ( !GetClientRect().Contains(point) )
+        return wxNOT_FOUND;
+
+    int y, index;
+
+    CalcUnscrolledPosition(0, point.y, NULL, &y);
+    index = y / GetLineHeight();
+
+    if ( index < 0 )
+    {
+        // mouse is above the first item
+        index = 0;
+    }
+    else if ( (unsigned int)index >= GetCount() )
+    {
+        // mouse is below the last item
+        index= GetCount() - 1;
+    }
+
+    return index;
+}
+
 // ----------------------------------------------------------------------------
 // input handling
 // ----------------------------------------------------------------------------