[cdt-dev] How to add a listener to the Combo-Box in project's settings (

["Andrey Tretyakov" <andrromeda@xxxxxxxxx>]

Hello!
I've developed my plugin and defined my own toolchain with new compiler's  
option:

      <tool
            ...
         <optionCategory
               id="test.c.compiler.testcategory"
               name="Test Settings"
               owner="test.c.compiler">
         </optionCategory>
         <option
               category="test.c.compiler.testcategory"
               id="test.c.compiler.testoption"
               name="Test Option"
               valueType="enumerated">
            <enumeratedOptionValue
                  id="test.c.compiler.testoption.default"
                  isDefault="true"
                  name="Default">
            </enumeratedOptionValue>
            <enumeratedOptionValue
                  command="--test"
                  id="test.c.compiler.testoption.test"
                  name="test">
            </enumeratedOptionValue>
         </option>
      </tool>

How can I add a new listener of changing user's choice to the  
corresponding combo-box in project's settings?