Simplify control item switch statements
Simplify control item switch statements

Just check the dynamic_cast result to verify check boxes.

Change-Id: I5f370e337e12719eb7ef0dd3512a0f46c76a981e

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core