org.midica.ui.file

Class FileExtensionFilter

java.lang.Object

javax.swing.filechooser.FileFilter

org.midica.ui.file.FileExtensionFilter

public class FileExtensionFilter
extends javax.swing.filechooser.FileFilter

Provides a filter for a JFileChooser to filter files by file extensions. This class is used together with the JFileChooser by the class FileSelector.

Author:

Jan Trukenmüller

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.ArrayList<java.lang.String>	allowedExtensions
private java.util.ArrayList<java.util.regex.Pattern>	patterns
private java.lang.String	type

Constructor Summary

Constructors

Constructor and Description
FileExtensionFilter(java.lang.String type) Creates a new file extension filter for a file chooser filtering files by the given file type.

Method Summary

Modifier and Type	Method and Description
boolean	accept(java.io.File file)
java.lang.String	getDescription() Returns a list of comma-separated, allowed file extensions.
java.lang.String	getType() Returns the file extension bound to this filter.
private void	init() Initializes the allowed file extensions and regex patterns according to the file type.

Methods inherited from class java.lang.Object

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

Field Detail

type

private java.lang.String type

patterns

private java.util.ArrayList<java.util.regex.Pattern> patterns

allowedExtensions

private java.util.ArrayList<java.lang.String> allowedExtensions

Constructor Detail

FileExtensionFilter

public FileExtensionFilter(java.lang.String type)

Creates a new file extension filter for a file chooser filtering files by the given file type.

Parameters:

type - File type to be filtered.

Method Detail

init

private void init()

Initializes the allowed file extensions and regex patterns according to the file type.

accept

public boolean accept(java.io.File file)

Specified by:

accept in class javax.swing.filechooser.FileFilter

getDescription

public java.lang.String getDescription()

Returns a list of comma-separated, allowed file extensions. Every extension is preceeded by ’*.’

Example: - *.mid, *.midi, *.kar

Specified by:

getDescription in class javax.swing.filechooser.FileFilter

Returns:

a list of allowed file extensions.

getType

public java.lang.String getType()

Returns the file extension bound to this filter.

Returns:

File extension.