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
JFileChooser to return different icons or additional information using
JFileChooser first looks to see if there is a user defined
FileView, if there is, it gets type information from there first. If
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.
public String getName(File f)
The name of the file. Normally this would be simply
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".
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"
public Icon getIcon(File f)
The icon that represents this file in the
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.
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