Bug 214714 [Regression] Can't preview SVG image in Report Template dialog when new a report design [02]
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ThumbnailBuilder.java
if ( currentListener != null )
		{
			btnImport.removeListener( SWT.Selection, currentListener );
		}
		switch ( type )
		{
			case GENERATE_TYPE :
				radioBtnGenerate.setSelection( true );
				radioBtnBrowse.setSelection( false );
				radioBtnImport.setSelection( false );
				btnImport.setText( BUTTON_TEXT_GENERATE );
				LayoutButtons( );
				currentListener = btnGenerateListener;
				btnImport.addListener( SWT.Selection, currentListener );
				break;
			case BROWSER_TYPE :
				radioBtnGenerate.setSelection( false );
				radioBtnBrowse.setSelection( true );
				radioBtnImport.setSelection( false );
				btnImport.setText( Messages.getString( "ThumbnailBuilder.Button.Text.Browse" ) ); 
				LayoutButtons( );
				currentListener = btnBrowseListener;
				btnImport.addListener( SWT.Selection, currentListener );
				break;
			case IMPORT_TYPE :
				radioBtnGenerate.setSelection( false );
				radioBtnBrowse.setSelection( false );
				radioBtnImport.setSelection( true );
				btnImport.setText( BUTTON_TEXT_IMPORT );
				LayoutButtons( );