JavaTM 2 Platform Std. Ed. v1.6.0
javax.swing.filechooser
Class FileView
java.lang.Object
javax.swing.filechooser.FileView
- Direct Known Subclasses:
- BasicFileChooserUI.BasicFileView
public abstract class FileView - extends Object
FileView defines an abstract class that can be implemented
to provide the filechooser with UI information for a File .
Each L&F JFileChooserUI object implements this
class to pass back the correct icons and type descriptions specific to
that L&F. For example, the Microsoft Windows L&F returns the
generic Windows icons for directories and generic files.
Additionally, you may want to provide your own FileView to
JFileChooser to return different icons or additional
information using JFileChooser.setFileView(javax.swing.filechooser.FileView) .
JFileChooser first looks to see if there is a user defined
FileView , if there is, it gets type information from
there first. If FileView returns null for
any method, JFileChooser then uses the L&F specific
view to get the information.
So, for example, if you provide a FileView class that
returns an Icon for JPG files, and returns null
icons for all other files, the UI's FileView will provide
default icons for all other files.
For an example implementation of a simple file view, see
yourJDK/demo/jfc/FileChooserDemo/ExampleFileView.java .
For more information and examples see
How to Use File Choosers,
a section in The Java Tutorial.
- See Also:
JFileChooser
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
FileView
public FileView()
getName
public String getName(File f)
- The name of the file. Normally this would be simply
f.getName() .
getDescription
public String getDescription(File f)
- A human readable description of the file. For example,
a file named jag.jpg might have a description that read:
"A JPEG image file of James Gosling's face".
getTypeDescription
public String getTypeDescription(File f)
- A human readable description of the type of the file. For
example, a
jpg file might have a type description of:
"A JPEG Compressed Image File"
getIcon
public Icon getIcon(File f)
- The icon that represents this file in the
JFileChooser .
isTraversable
public Boolean isTraversable(File f)
- Whether the directory is traversable or not. This might be
useful, for example, if you want a directory to represent
a compound document and don't want the user to descend into it.
Copyright 2003 Sun Microsystems, Inc. All rights reserved
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