Bug 189585 [Linux]Data expression input box cannot show completely.
Description: Data expression input box cannot show completely. Build number:2.2.0.v20070529 Test Platform: Linux Steps to reproduce: 1. Insert a data item. Expected result: Expression input box show completely. Actual result: See attached. Error log:N/A
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
}
		}
		return null;
	}
	private IChoice[] getFunctions( )
	{
		return DEUtil.getMetaDataDictionary( )
				.getStructure( ComputedColumn.COMPUTED_COLUMN_STRUCT )
				.getMember( ComputedColumn.AGGREGATEON_FUNCTION_MEMBER )
				.getAllowedChoices( )
				.getChoices( );
	}
	/**
	 * fill the cmbDataField with binding holder's bindings
	 */
	private void initDataFields( )
	{
		cmbDataField.setItems( getColumnBindings( ) );
		if ( binding != null && binding.getExpression( ) != null )
		{
			cmbDataField.setText( binding.getExpression( ) );
		}
	}
	private String[] getColumnBindings( )
	{
		List elementsList = DEUtil.getVisiableColumnBindingsList( getBindingHolder( ) );
		String[] bindings = new String[elementsList.size( )];
		for ( int i = 0; i < bindings.length; i++ )
		{
			bindings[i] = ( (ComputedColumnHandle) elementsList.get( i ) ).getName( );