File Selection Window

Introduction

The File Selection Window appears when the Select button on the spectrum reading window is operated. It is used to browse through directories in order to select a file for reading from. It is a slightly repackaged form of the standard Motif FileSelection Widget.

Description

The window contains ( in top to bottom, left to right order ):

A TEXT AREA which is used to specify the directory to be searched and a pattern to match filenames to. For example,

/home/pcs/X/Motif/*dat

means search directory /home/pcs/X/Motif for files with names ending in 'dat'.
A LIST of directories contained in the directory last searched.
A LIST of files matching the pattern last searched for in the directory last searched.
A TEXT AREA containing the name of the currently selected file. Any changes to this name are also echoed in the relevant areas of the Spectrum Reading Window.
A set of buttons: Read, Filter, Cancel and Help. The effects of these are described below.

Operation


  To carry out a directory search:

      operate the Filter button ( it is called filter because it 
      filters the filenames in the directory ).

      OR

      press RETURN while the Filter button is the default button 
      ( this will happen when the current directory or directories
      list items have the keyboard focus ).

      OR 

      double click the left mouse button on a directory in the 
      directories list.



   To change the directory to be searched:

      edit the 'Current search directory and file search pattern' 
      area

      OR

      click the left mouse button on a directory in the directories
      list

   
   To change the filename search pattern:

      edit the 'Current search directory and file search pattern' 
      area

      
   To select a file for reading:

      click the left mouse button on a filename in the files list


      OR

      edit the 'Currently Selected File is:' area


      In both cases the filename and directory areas of the Spectrum
      Reading Window will both be updated.


    To read a file:

      operate the Read button

      OR 

      press RETURN when the Read button is the default button ( this
      will happen when either the files list or the selected file
      item has the keyboard focus )

      OR 

      double click on an item in the files list

      In each case the file read is the one currently selected. The
      other information for the read ( file type, column numbers and
      so on ) is taken from the current values of the Spectrum Reading
      Window.