Bug 122412 Need a scroll bar to display the full description in expression builder
Description: Need a scroll bar to display the full description in expression builder Step to reproduce: 1.Open the expression builder, choose BIRT JS Object->Total Expected result: All the methods and description could be displayed.Since we can't resize the dialog of expression builder, a scroll bar is needed Actual result: The methods and description are truncated due to the limited space (see the sreenshot in attachment)
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ExpressionBuilder.java
/**
	 * Returns the dialog title of the expression builder
	 */
	public String getDialogTitle( )
	{
		return title;
	}
	/**
	 * Insert a text string into the text area
	 * 
	 * @param text
	 */
	protected void insertText( String text )
	{
		StyledText textWidget = sourceViewer.getTextWidget( );
		if ( !textWidget.isEnabled( ) )
		{
			return;
		}
		int selectionStart = textWidget.getSelection( ).x;
		textWidget.insert( text );
		textWidget.setSelection( selectionStart + text.length( ) );
		textWidget.setFocus( );
		if ( text.endsWith( "()" ) ) 
		{
			textWidget.setCaretOffset( textWidget.getCaretOffset( ) - 1 ); 
		}
	}
}