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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 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 filter, see
yourSDK/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
| Constructor Summary | |
FileView()
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| Method Summary | |
String |
getDescription(File f)
A human readable description of the file. |
Icon |
getIcon(File f)
The icon that represents this file in the JFileChooser. |
String |
getName(File f)
The name of the file. |
String |
getTypeDescription(File f)
A human readable description of the type of the file. |
Boolean |
isTraversable(File f)
Whether the directory is traversable or not. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
FileView
public FileView()
| Method Detail |
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.
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JavaTM 2 Platform Std. Ed. v1.3.1 |
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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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