Bug 12329 [Cell Editors] Request:ComboBoxCellEditor READ_ONLY style
Although CCombo accepts SWT.READ_ONLY style, there is no way to specify style when it is used in ComboBoxCellEditor. How about adding createControl(Composite parent, int style) method to ComboBoxCellEditor class?
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/CellEditor.java
/**
		 * Horizontal alignment; <code>SWT.LEFT</code> by default.
		 */
		public int horizontalAlignment = SWT.LEFT;
		/**
		 * Indicates control grabs additional space; <code>true</code> by default.
		 */
		public boolean grabHorizontal = true;
		/**
		 * Minimum width in pixels; <code>50</code> pixels by default.
		 */
		public int minimumWidth = 50;
	}
	/**
	 * Property name for the copy action
	 */
	public static final String COPY = "copy"; 
	/**
	 * Property name for the cut action
	 */
	public static final String CUT = "cut"; 
	
	/**
	 * Property name for the delete action
	 */
	public static final String DELETE = "delete"; 
	/**