Class fileIO

java.lang.Object
  |
  +--fileIO

public class fileIO

extends java.lang.Object

Contains all functionality for saving and loading the current state of the system, all operators and links, locations, parameter settings etc.

Constructor Summary

fileIO()
No argument constructor.

fileIO(java.util.ArrayList boxes, linkData links, javax.swing.JFrame frame)
Constructor taking details of all operatorBoxes and links in the system, so that all details can be saved correctly.

Method Summary

void	clearSystem() Clears the current system by removing all the operators and links.
void	getUrl() Gets the URL in the popup window
void	loadLocation(operator op, java.io.StreamTokenizer tokenizer) Load the location of an operator from the file, so that the layout is correct.
void	loadSystem(java.net.URL tableaudocbase) Popup a file load dialog box, to allow the user to select a layout to load and then load it in to the program.
void	loadURLSystem()
void	popUrl() Popup a window to allow the user to give a full URL
void	resetFile() Sets/resets the default file name (to prevent a new blank layout being saved overwriting a recently saved layout).
void	saveSystem(java.applet.AppletContext appcontext) Saves the layout of the current system to the current file name, if the current file name is the default file name then allow the user to select a more suitable name (don't save the file as the default name).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

fileIO

public fileIO()

No argument constructor.

fileIO

public fileIO(java.util.ArrayList boxes,
              linkData links,
              javax.swing.JFrame frame)

Constructor taking details of all operatorBoxes and links in the system, so that all details can be saved correctly.

Parameters:

boxes - a list of all operatorBoxes (and therefore operators) in the system

links - all links in the system

Method Detail

clearSystem

public void clearSystem()

Clears the current system by removing all the operators and links.

resetFile

public void resetFile()

Sets/resets the default file name (to prevent a new blank layout being saved overwriting a recently saved layout).

saveSystem

public void saveSystem(java.applet.AppletContext appcontext)

Saves the layout of the current system to the current file name, if the current file name is the default file name then allow the user to select a more suitable name (don't save the file as the default name).

loadLocation

public void loadLocation(operator op,
                         java.io.StreamTokenizer tokenizer)
                  throws java.io.IOException

Load the location of an operator from the file, so that the layout is correct.

Parameters:

op - the operator to be placed at the correct location

tokenizer - the input file layered stream

popUrl

public void popUrl()

Popup a window to allow the user to give a full URL

getUrl

public void getUrl()

Gets the URL in the popup window

loadURLSystem

public void loadURLSystem()

loadSystem

public void loadSystem(java.net.URL tableaudocbase)

Popup a file load dialog box, to allow the user to select a layout to load and then load it in to the program.