org.jfree.ui.action
Class AbstractFileSelectionAction

java.lang.Object
  javax.swing.AbstractAction
      org.jfree.ui.action.AbstractActionDowngrade
          org.jfree.ui.action.AbstractFileSelectionAction

All Implemented Interfaces:

java.awt.event.ActionListener, java.io.Serializable, java.lang.Cloneable, java.util.EventListener, javax.swing.Action, ActionDowngrade

public abstract class AbstractFileSelectionAction
extends AbstractActionDowngrade

A base class for all file operations. This implementation provides all methods to let the user select a file.

Author:

Thomas Morgner

See Also:

Serialized Form

Field Summary

Fields inherited from class org.jfree.ui.action.AbstractActionDowngrade

ACCELERATOR_KEY, MNEMONIC_KEY

Fields inherited from class javax.swing.AbstractAction

changeSupport, enabled

Fields inherited from interface javax.swing.Action

ACTION_COMMAND_KEY, DEFAULT, DISPLAYED_MNEMONIC_INDEX_KEY, LARGE_ICON_KEY, LONG_DESCRIPTION, NAME, SELECTED_KEY, SHORT_DESCRIPTION, SMALL_ICON

Constructor Summary

AbstractFileSelectionAction(java.awt.Component parent)
Creates a new FileSelectionAction with the given optional parent component as parent for the file chooser dialog.

Method Summary

protected javax.swing.JFileChooser	createFileChooser() Creates the file chooser.
protected java.io.File	getCurrentDirectory() Returns the working directory that should be used when initializing the FileChooser.
protected abstract java.lang.String	getFileDescription() Returns a descriptive text describing the file extension.
protected abstract java.lang.String	getFileExtension() Returns the file extension that should be used for the operation.
protected java.io.File	performSelectFile(java.io.File selectedFile, int dialogType, boolean appendExtension) Selects a file to use as target for the operation.

Methods inherited from class javax.swing.AbstractAction

addPropertyChangeListener, clone, firePropertyChange, getKeys, getPropertyChangeListeners, getValue, isEnabled, putValue, removePropertyChangeListener, setEnabled

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.swing.Action

addPropertyChangeListener, getValue, isEnabled, putValue, removePropertyChangeListener, setEnabled

Methods inherited from interface java.awt.event.ActionListener

actionPerformed

Constructor Detail

AbstractFileSelectionAction

public AbstractFileSelectionAction(java.awt.Component parent)

Creates a new FileSelectionAction with the given optional parent component as parent for the file chooser dialog.

Parameters:

parent - the parent

Method Detail

getFileExtension

protected abstract java.lang.String getFileExtension()

Returns the file extension that should be used for the operation.

Returns:

the file extension.

getFileDescription

protected abstract java.lang.String getFileDescription()

Returns a descriptive text describing the file extension.

Returns:

the file description.

getCurrentDirectory

protected java.io.File getCurrentDirectory()

Returns the working directory that should be used when initializing the FileChooser.

Returns:

the working directory.

performSelectFile

protected java.io.File performSelectFile(java.io.File selectedFile,
                                         int dialogType,
                                         boolean appendExtension)

Selects a file to use as target for the operation.

Parameters:

selectedFile - the selected file.

dialogType - the dialog type.

appendExtension - true, if the file extension should be added if necessary, false if the unmodified filename should be used.

Returns:

the selected and approved file or null, if the user canceled the operation

createFileChooser

protected javax.swing.JFileChooser createFileChooser()

Creates the file chooser.

Returns:

the initialized file chooser.