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SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--java.awt.Component | +--java.awt.Container | +--java.awt.Window | +--java.awt.Dialog | +--java.awt.FileDialog
The FileDialog
class displays a dialog window
from which the user can select a file.
Since it is a modal dialog, when the application calls
its show
method to display the dialog,
it blocks the rest of the application until the user has
chosen a file.
Window.show()
, Serialized FormInner classes inherited from class java.awt.Component |
Component.AWTTreeLock,
Component.NativeInLightFixer |
Field Summary | |
private static String |
base
|
(package private) String |
dir
|
(package private) String |
file
|
(package private) FilenameFilter |
filter
|
static int |
LOAD
This constant value indicates that the purpose of the file dialog window is to locate a file from which to read. |
(package private) int |
mode
|
private static int |
nameCounter
|
static int |
SAVE
This constant value indicates that the purpose of the file dialog window is to locate a file to which to write. |
private static long |
serialVersionUID
|
Fields inherited from class java.awt.Dialog |
base,
modal,
nameCounter,
resizable,
serialVersionUID,
title |
Fields inherited from class java.awt.Window |
active,
base,
focusMgr,
inputContext,
nameCounter,
OPENED,
ownedWindowList,
serialVersionUID,
state,
warningString,
weakThis,
windowListener,
windowSerializedDataVersion |
Fields inherited from class java.awt.Container |
component,
containerListener,
containerSerializedDataVersion,
dispatcher,
layoutMgr,
maxSize,
ncomponents,
serialVersionUID |
Constructor Summary | |
FileDialog(Frame parent)
Creates a file dialog for loading a file. |
|
FileDialog(Frame parent,
String title)
Creates a file dialog window with the specified title for loading a file. |
|
FileDialog(Frame parent,
String title,
int mode)
Creates a file dialog window with the specified title for loading or saving a file. |
Method Summary | |
(package private) static void |
|
void |
addNotify()
Creates the file dialog's peer. |
(package private) String |
constructComponentName()
Construct a name for this component. |
String |
getDirectory()
Gets the directory of this file dialog. |
String |
getFile()
Gets the selected file of this file dialog. |
FilenameFilter |
getFilenameFilter()
Determines this file dialog's filename filter. |
int |
getMode()
Indicates whether this file dialog box is for loading from a file or for saving to a file. |
private static void |
initIDs()
Initialize JNI field and method IDs for fields that may be accessed from C. |
protected String |
paramString()
Returns the parameter string representing the state of this file dialog window. |
(package private) boolean |
postsOldMouseEvents()
|
private void |
readObject(ObjectInputStream s)
|
(package private) void |
setDirectory_NoClientCode(String dir)
|
void |
setDirectory(String dir)
Sets the directory of this file dialog window to be the specified directory. |
(package private) void |
setFile_NoClientCode(String file)
|
void |
setFile(String file)
Sets the selected file for this file dialog window to be the specified file. |
void |
setFilenameFilter(FilenameFilter filter)
Sets the filename filter for this file dialog window to the specified filter. |
void |
setMode(int mode)
Sets the mode of the file dialog. |
Methods inherited from class java.awt.Dialog |
getTitle,
isModal,
isResizable,
setModal,
setResizable,
setTitle,
show |
Methods inherited from class java.lang.Object |
clone,
equals,
getClass,
hashCode,
notify,
notifyAll,
registerNatives,
wait,
wait,
wait |
Field Detail |
public static final int LOAD
public static final int SAVE
int mode
String dir
String file
FilenameFilter filter
private static final String base
private static int nameCounter
private static final long serialVersionUID
Constructor Detail |
public FileDialog(Frame parent)
parent
- the owner of the dialogpublic FileDialog(Frame parent, String title)
parent
- the owner of the dialog.title
- the title of the dialog.public FileDialog(Frame parent, String title, int mode)
If the value of mode
is LOAD
, then the
file dialog is finding a file to read. If the value of
mode
is SAVE
, the file dialog is finding
a place to write a file.
parent
- the owner of the dialog.title
- the title of the dialog.mode
- the mode of the dialog.LOAD
,
SAVE
Method Detail |
static void()
private static void initIDs()
String constructComponentName()
public void addNotify()
public int getMode()
FileDialog.LOAD
or
FileDialog.SAVE
.LOAD
,
SAVE
,
setMode(int)
public void setMode(int mode)
mode
- the mode for this file dialog, either
FileDialog.LOAD
or
FileDialog.SAVE
.LOAD
,
SAVE
,
getMode()
public String getDirectory()
setDirectory(java.lang.String)
public void setDirectory(String dir)
null
or an
invalid directory implies an implementation-defined default.
This default will not be realized, however, until the user
has selected a file. Until this point, getDirectory()
will return the value passed into this method.
Specifying "" as the directory is exactly equivalent to
specifying null
as the directory.
dir
- the specific directory.getDirectory()
final void setDirectory_NoClientCode(String dir)
public String getFile()
null
if none is selected.setFile(java.lang.String)
public void setFile(String file)
Specifying "" as
the file is exactly equivalent to specifying null
as the file.
file
- the file being set.getFile()
final void setFile_NoClientCode(String file)
public FilenameFilter getFilenameFilter()
FilenameFilter
,
setFilenameFilter(java.io.FilenameFilter)
public void setFilenameFilter(FilenameFilter filter)
filter
- the specified filter.FilenameFilter
,
getFilenameFilter()
private void readObject(ObjectInputStream s) throws ClassNotFoundException, IOException
protected String paramString()
boolean postsOldMouseEvents()
|
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