Bug 135497 Data Type is not correct when "Generate All" for Data item
Description: Create a sample datasource and dataset. Insert a data into layout, bind with the dataset.Click "Generate All" to get the Data Binding columns, but the displayed data type is not consistent with the actual one.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/processor/ImageItemProcessor.java
{
	/**
	 * Constructor
	 * 
	 * Creates a new instance of the processor for image items
	 */
	ImageItemProcessor( )
	{
		super( ReportDesignConstants.IMAGE_ITEM );
	}
	public DesignElementHandle createElement( Object extendedData )
	{
		ImageBuilder dialog = new ImageBuilder( UIUtil.getDefaultShell( ),
				ImageBuilder.DLG_TITLE_NEW );
		if ( dialog.open( ) == Dialog.OK )
		{
			return (DesignElementHandle) dialog.getResult( );
		}
		return null;
	}
	public boolean editElement( DesignElementHandle handle )
	{
		ImageBuilder dialog = new ImageBuilder( UIUtil.getDefaultShell( ),
				ImageBuilder.DLG_TITLE_EDIT );
		dialog.setInput( handle );
		return ( dialog.open( ) == Dialog.OK );
	}
}