jfig.utils
Class JRecentFileManager

java.lang.Object
  jfig.utils.JRecentFileManager

public class JRecentFileManager

extends java.lang.Object

JRecentFileManager - manage a set of "recent files" including the AWT menu stuff, AWT event and callback handling, and storage to a file or URL. The API for this class is based on the RecentFileList class from the org.freehep.swing package by Tony Johnson (tonyj@slac.stanford.edu).

Field Summary

(package private) java.lang.String[]	filenames
int	MAXCHARS
(package private) javax.swing.JMenuItem[]	menuItems
(package private) java.awt.event.ActionListener	target

Constructor Summary

JRecentFileManager()

JRecentFileManager(int n)

Method Summary

void	add(java.io.File file) retrieve the pathname of "file" and forward to the add( name ) method
void	add(java.lang.String name) add a file or URL "name" to our entries, and re-sort them: we just put the entry at position 0, and then walk through the filenames array.
void	clearAllEntries()
javax.swing.JMenuItem[]	createMenuItems(java.awt.event.ActionListener listener) create n_entries menu items in the given Menu.
java.lang.String	get(java.awt.event.ActionEvent evt)
java.lang.String	get(int i)
java.lang.String	get(java.lang.String name)
java.lang.String	getMenuItemLabel(int i)
int	getSize()
void	load(java.util.Properties props) load the recent filenames from a Properties object, using "RecentFile0", "RecentFile1", etc.
void	loadFromFile(java.lang.String filename)
static void	main(java.lang.String[] argv) minimal selftest
void	print()
void	save(java.util.Properties props) save the current filename entries as a Properties object, using "RecentFile0", "RecentFile1", etc.
void	saveToFile(java.lang.String filename)
void	setActionListener(java.awt.event.ActionListener al)
void	updateMenuItems()

Methods inherited from class java.lang.Object

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

Field Detail

MAXCHARS

public final int MAXCHARS

See Also:

Constant Field Values

filenames

java.lang.String[] filenames

menuItems

javax.swing.JMenuItem[] menuItems

target

java.awt.event.ActionListener target

Constructor Detail

JRecentFileManager

public JRecentFileManager()

JRecentFileManager

public JRecentFileManager(int n)

Method Detail

clearAllEntries

public void clearAllEntries()

getSize

public int getSize()

setActionListener

public void setActionListener(java.awt.event.ActionListener al)

add

public void add(java.io.File file)

retrieve the pathname of "file" and forward to the add( name ) method

add

public void add(java.lang.String name)

add a file or URL "name" to our entries, and re-sort them: we just put the entry at position 0, and then walk through the filenames array.

print

public void print()

get

public java.lang.String get(java.lang.String name)

get

public java.lang.String get(int i)

createMenuItems

public javax.swing.JMenuItem[] createMenuItems(java.awt.event.ActionListener listener)

create n_entries menu items in the given Menu. The label of the menu item is built from the current file name: If the file name has less than 20 characters, we use the file name, otherwise the filename is truncated. If the corresponding entry is still null, we use "---" as the label.

updateMenuItems

public void updateMenuItems()

getMenuItemLabel

public java.lang.String getMenuItemLabel(int i)

get

public java.lang.String get(java.awt.event.ActionEvent evt)

save

public void save(java.util.Properties props)

save the current filename entries as a Properties object, using "RecentFile0", "RecentFile1", etc. as keys.

load

public void load(java.util.Properties props)

load the recent filenames from a Properties object, using "RecentFile0", "RecentFile1", etc. as keys.

saveToFile

public void saveToFile(java.lang.String filename)

loadFromFile

public void loadFromFile(java.lang.String filename)

main

public static void main(java.lang.String[] argv)
                 throws java.lang.Exception

minimal selftest

Throws:

java.lang.Exception