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java.awt
Class Dialog
java.lang.Object
java.awt.Component
java.awt.Container
java.awt.Window
java.awt.Dialog
-
All Implemented Interfaces:
-
ImageObserver
,
MenuContainer
,
Serializable
,
Accessible
-
Direct Known Subclasses:
-
FileDialog
,
JDialog
-
public class Dialog
- extends Window
A Dialog is a top-level window with a title and a border that is typically used to take some form of input from the user. The size of the dialog includes any area designated for the border. The dimensions of the border area can be obtained using the getInsets method, however, since these dimensions are platform-dependent, a valid insets value cannot be obtained until the dialog is made displayable by either calling pack or show. Since the border area is included in the overall size of the dialog, the border effectively obscures a portion of the dialog, constraining the area available for rendering and/or displaying subcomponents to the rectangle which has an upper-left corner location of (insets.left, insets.top), and has a size of width - (insets.left + insets.right) by height - (insets.top + insets.bottom).
The default layout for a dialog is BorderLayout.
A dialog may have its native decorations (i.e. Frame & Titlebar) turned off with setUndecorated. This can only be done while the dialog is not
displayable
.
A dialog must have either a frame or another dialog defined as its owner when it's constructed. When the owner window of a visible dialog is minimized, the dialog will automatically be hidden from the user. When the owner window is subsequently restored, the dialog is made visible to the user again.
In a multi-screen environment, you can create a Dialog on a different screen device than its owner. See
Frame
for more information.
A dialog can be either modeless (the default) or modal. A modal dialog is one which blocks input to all other toplevel windows in the application, except for any windows created with the dialog as their owner.
Dialogs are capable of generating the following WindowEvents: WindowOpened, WindowClosing, WindowClosed, WindowActivated, WindowDeactivated, WindowGainedFocus, WindowLostFocus.
-
Since:
-
JDK1.0
-
See Also:
-
WindowEvent
,
Window.addWindowListener(java.awt.event.WindowListener)
,
Serialized Form
Nested Class Summary
|
protected class |
Dialog.AccessibleAWTDialog
This class implements accessibility support for the Dialog class. |
Nested classes/interfaces inherited from class java.awt.
Window
|
Window.AccessibleAWTWindow
|
Nested classes/interfaces inherited from class java.awt.
Container
|
Container.AccessibleAWTContainer
|
Nested classes/interfaces inherited from class java.awt.
Component
|
Component.AccessibleAWTComponent
,
Component.BltBufferStrategy
,
Component.FlipBufferStrategy
|
Fields inherited from interface java.awt.image.
ImageObserver
|
ABORT
,
ALLBITS
,
ERROR
,
FRAMEBITS
,
HEIGHT
,
PROPERTIES
,
SOMEBITS
,
WIDTH
|
Constructor Summary
|
Dialog
(
Dialog
owner)
Constructs an initially invisible, non-modal Dialog with an empty title and the specified owner dialog. |
Dialog
(
Dialog
owner,
String
title)
Constructs an initially invisible, non-modal Dialog with the specified owner dialog and title. |
Dialog
(
Dialog
owner,
String
title, boolean modal)
Constructs an initially invisible Dialog with the specified owner dialog, title, and modality. |
Dialog
(
Dialog
owner,
String
title, boolean modal,
GraphicsConfiguration
gc)
Constructs an initially invisible Dialog with the specified owner dialog, title, modality, and GraphicsConfiguration. |
Dialog
(
Frame
owner)
Constructs an initially invisible, non-modal Dialog with an empty title and the specified owner frame. |
Dialog
(
Frame
owner, boolean modal)
Constructs an initially invisible Dialog with an empty title, the specified owner frame and modality. |
Dialog
(
Frame
owner,
String
title)
Constructs an initially invisible, non-modal Dialog with the specified owner frame and title. |
Dialog
(
Frame
owner,
String
title, boolean modal)
Constructs an initially invisible Dialog with the specified owner frame, title, and modality. |
Dialog
(
Frame
owner,
String
title, boolean modal,
GraphicsConfiguration
gc)
Constructs an initially invisible Dialog with the specified owner frame, title, modality, and GraphicsConfiguration. |
Method Summary
|
void |
addNotify
()
Makes this Dialog displayable by connecting it to a native screen resource. |
AccessibleContext
|
getAccessibleContext
()
Gets the AccessibleContext associated with this Dialog. |
String
|
getTitle
()
Gets the title of the dialog. |
void |
hide
()
Deprecated.
As of JDK version 1.5, replaced by
Component.setVisible(boolean)
.
|
boolean |
isModal
()
Indicates whether the dialog is modal. |
boolean |
isResizable
()
Indicates whether this dialog is resizable by the user. |
boolean |
isUndecorated
()
Indicates whether this dialog is undecorated. |
protected
String
|
paramString
()
Returns a string representing the state of this dialog. |
void |
setModal
(boolean b)
Specifies whether this dialog should be modal. |
void |
setResizable
(boolean resizable)
Sets whether this dialog is resizable by the user. |
void |
setTitle
(
String
title)
Sets the title of the Dialog. |
void |
setUndecorated
(boolean undecorated)
Disables or enables decorations for this dialog. |
void |
show
()
Deprecated.
As of JDK version 1.5, replaced by
Component.setVisible(boolean)
.
|
Methods inherited from class java.awt.
Window
|
addPropertyChangeListener
,
addPropertyChangeListener
,
addWindowFocusListener
,
addWindowListener
,
addWindowStateListener
,
applyResourceBundle
,
applyResourceBundle
,
createBufferStrategy
,
createBufferStrategy
,
dispose
,
finalize
,
getBufferStrategy
,
getFocusableWindowState
,
getFocusCycleRootAncestor
,
getFocusOwner
,
getFocusTraversalKeys
,
getGraphicsConfiguration
,
getInputContext
,
getListeners
,
getLocale
,
getMostRecentFocusOwner
,
getOwnedWindows
,
getOwner
,
getToolkit
,
getWarningString
,
getWindowFocusListeners
,
getWindowListeners
,
getWindowStateListeners
,
isActive
,
isAlwaysOnTop
,
isFocusableWindow
,
isFocusCycleRoot
,
isFocused
,
isLocationByPlatform
,
isShowing
,
pack
,
postEvent
,
processEvent
,
processWindowEvent
,
processWindowFocusEvent
,
processWindowStateEvent
,
removeWindowFocusListener
,
removeWindowListener
,
removeWindowStateListener
,
setAlwaysOnTop
,
setBounds
,
setCursor
,
setFocusableWindowState
,
setFocusCycleRoot
,
setLocationByPlatform
,
setLocationRelativeTo
,
toBack
,
toFront
|
Methods inherited from class java.awt.
Container
|
add
,
add
,
add
,
add
,
add
,
addContainerListener
,
addImpl
,
applyComponentOrientation
,
areFocusTraversalKeysSet
,
countComponents
,
deliverEvent
,
doLayout
,
findComponentAt
,
findComponentAt
,
getAlignmentX
,
getAlignmentY
,
getComponent
,
getComponentAt
,
getComponentAt
,
getComponentCount
,
getComponents
,
getComponentZOrder
,
getContainerListeners
,
getFocusTraversalPolicy
,
getInsets
,
getLayout
,
getMaximumSize
,
getMinimumSize
,
getMousePosition
,
getPreferredSize
,
insets
,
invalidate
,
isAncestorOf
,
isFocusCycleRoot
,
isFocusTraversalPolicyProvider
,
isFocusTraversalPolicySet
,
layout
,
list
,
list
,
locate
,
minimumSize
,
paint
,
paintComponents
,
preferredSize
,
print
,
printComponents
,
processContainerEvent
,
remove
,
remove
,
removeAll
,
removeContainerListener
,
removeNotify
,
setComponentZOrder
,
setFocusTraversalKeys
,
setFocusTraversalPolicy
,
setFocusTraversalPolicyProvider
,
setFont
,
setLayout
,
transferFocusBackward
,
transferFocusDownCycle
,
update
,
validate
,
validateTree
|
Methods inherited from class java.awt.
Component
|
action
,
add
,
addComponentListener
,
addFocusListener
,
addHierarchyBoundsListener
,
addHierarchyListener
,
addInputMethodListener
,
addKeyListener
,
addMouseListener
,
addMouseMotionListener
,
addMouseWheelListener
,
bounds
,
checkImage
,
checkImage
,
coalesceEvents
,
contains
,
contains
,
createImage
,
createImage
,
createVolatileImage
,
createVolatileImage
,
disable
,
disableEvents
,
dispatchEvent
,
enable
,
enable
,
enableEvents
,
enableInputMethods
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
getBackground
,
getBounds
,
getBounds
,
getColorModel
,
getComponentListeners
,
getComponentOrientation
,
getCursor
,
getDropTarget
,
getFocusListeners
,
getFocusTraversalKeysEnabled
,
getFont
,
getFontMetrics
,
getForeground
,
getGraphics
,
getHeight
,
getHierarchyBoundsListeners
,
getHierarchyListeners
,
getIgnoreRepaint
,
getInputMethodListeners
,
getInputMethodRequests
,
getKeyListeners
,
getLocation
,
getLocation
,
getLocationOnScreen
,
getMouseListeners
,
getMouseMotionListeners
,
getMousePosition
,
getMouseWheelListeners
,
getName
,
getParent
,
getPeer
,
getPropertyChangeListeners
,
getPropertyChangeListeners
,
getSize
,
getSize
,
getTreeLock
,
getWidth
,
getX
,
getY
,
gotFocus
,
handleEvent
,
hasFocus
,
imageUpdate
,
inside
,
isBackgroundSet
,
isCursorSet
,
isDisplayable
,
isDoubleBuffered
,
isEnabled
,
isFocusable
,
isFocusOwner
,
isFocusTraversable
,
isFontSet
,
isForegroundSet
,
isLightweight
,
isMaximumSizeSet
,
isMinimumSizeSet
,
isOpaque
,
isPreferredSizeSet
,
isValid
,
isVisible
,
keyDown
,
keyUp
,
list
,
list
,
list
,
location
,
lostFocus
,
mouseDown
,
mouseDrag
,
mouseEnter
,
mouseExit
,
mouseMove
,
mouseUp
,
move
,
nextFocus
,
paintAll
,
prepareImage
,
prepareImage
,
printAll
,
processComponentEvent
,
processFocusEvent
,
processHierarchyBoundsEvent
,
processHierarchyEvent
,
processInputMethodEvent
,
processKeyEvent
,
processMouseEvent
,
processMouseMotionEvent
,
processMouseWheelEvent
,
remove
,
removeComponentListener
,
removeFocusListener
,
removeHierarchyBoundsListener
,
removeHierarchyListener
,
removeInputMethodListener
,
removeKeyListener
,
removeMouseListener
,
removeMouseMotionListener
,
removeMouseWheelListener
,
removePropertyChangeListener
,
removePropertyChangeListener
,
repaint
,
repaint
,
repaint
,
repaint
,
requestFocus
,
requestFocus
,
requestFocusInWindow
,
requestFocusInWindow
,
reshape
,
resize
,
resize
,
setBackground
,
setBounds
,
setComponentOrientation
,
setDropTarget
,
setEnabled
,
setFocusable
,
setFocusTraversalKeysEnabled
,
setForeground
,
setIgnoreRepaint
,
setLocale
,
setLocation
,
setLocation
,
setMaximumSize
,
setMinimumSize
,
setName
,
setPreferredSize
,
setSize
,
setSize
,
setVisible
,
show
,
size
,
toString
,
transferFocus
,
transferFocusUpCycle
|
Methods inherited from class java.lang.
Object
|
clone
,
equals
,
getClass
,
hashCode
,
notify
,
notifyAll
,
wait
,
wait
,
wait
|
Dialog
public Dialog(Frame owner)
-
Constructs an initially invisible, non-modal Dialog with an empty title and the specified owner frame.
-
Parameters:
-
owner - the owner of the dialog
-
Throws:
-
IllegalArgumentException
- if the owner's GraphicsConfiguration is not from a screen device
-
IllegalArgumentException
- if owner is null; this exception is always thrown when GraphicsEnvironment.isHeadless returns true
-
See Also:
-
GraphicsEnvironment.isHeadless()
,
Component.setSize(int, int)
,
Component.setVisible(boolean)
Dialog
public Dialog(Frame owner,
boolean modal)
-
Constructs an initially invisible Dialog with an empty title, the specified owner frame and modality.
-
Parameters:
-
owner - the owner of the dialog
-
modal - if true, dialog blocks input to other app windows when shown
-
Throws:
-
IllegalArgumentException
- if the owner's GraphicsConfiguration is not from a screen device
-
IllegalArgumentException
- if owner is null; this exception is always thrown when GraphicsEnvironment.isHeadless returns true
-
See Also:
-
GraphicsEnvironment.isHeadless()
Dialog
public Dialog(Frame owner,
String title)
-
Constructs an initially invisible, non-modal Dialog with the specified owner frame and title.
-
Parameters:
-
owner - the owner of the dialog
-
title - the title of the dialog; a null value will be accepted without causing a NullPointerException to be thrown
-
Throws:
-
IllegalArgumentException
- if the owner's GraphicsConfiguration is not from a screen device
-
IllegalArgumentException
- if owner is null; this exception is always thrown when GraphicsEnvironment.isHeadless returns true
-
See Also:
-
GraphicsEnvironment.isHeadless()
,
Component.setSize(int, int)
,
Component.setVisible(boolean)
Dialog
public Dialog(Frame owner,
String title,
boolean modal)
-
Constructs an initially invisible Dialog with the specified owner frame, title, and modality.
-
Parameters:
-
owner - the owner of the dialog
-
title - the title of the dialog; a null value will be accepted without causing a NullPointerException to be thrown
-
modal - if true, dialog blocks input to other app windows when shown
-
Throws:
-
IllegalArgumentException
- if the owner's GraphicsConfiguration is not from a screen device
-
IllegalArgumentException
- if owner is null. This exception is always thrown when GraphicsEnvironment.isHeadless returns true
-
See Also:
-
GraphicsEnvironment.isHeadless()
,
Component.setSize(int, int)
,
Component.setVisible(boolean)
Dialog
public Dialog(Frame owner,
String title,
boolean modal,
GraphicsConfiguration gc)
-
Constructs an initially invisible Dialog with the specified owner frame, title, modality, and GraphicsConfiguration.
-
Parameters:
-
owner - the owner of the dialog
-
title - the title of the dialog. A null value will be accepted without causing a NullPointerException to be thrown.
-
modal - if true, dialog blocks input to other app windows when shown
-
gc - the GraphicsConfiguration of the target screen device. If gc is null, the same GraphicsConfiguration as the owning Frame is used.
-
Throws:
-
IllegalArgumentException
- if owner is null. This exception is always thrown when GraphicsEnvironment.isHeadless() returns true
-
Since:
-
1.4
-
See Also:
-
GraphicsEnvironment.isHeadless()
,
Component.setSize(int, int)
,
Component.setVisible(boolean)
Dialog
public Dialog(Dialog owner)
-
Constructs an initially invisible, non-modal Dialog with an empty title and the specified owner dialog.
-
Parameters:
-
owner - the owner of the dialog
-
Throws:
-
IllegalArgumentException
- if owner is null. This exception is always thrown when GraphicsEnvironment.isHeadless() returns true
-
Since:
-
1.2
-
See Also:
-
GraphicsEnvironment.isHeadless()
Dialog
public Dialog(Dialog owner,
String title)
-
Constructs an initially invisible, non-modal Dialog with the specified owner dialog and title.
-
Parameters:
-
owner - the owner of the dialog
-
title - the title of the dialog. A null value will be accepted without causing a NullPointerException to be thrown.
-
Throws:
-
IllegalArgumentException
- if owner is null. This exception is always thrown when GraphicsEnvironment.isHeadless() returns true
-
Since:
-
1.2
-
See Also:
-
GraphicsEnvironment.isHeadless()
Dialog
public Dialog(Dialog owner,
String title,
boolean modal)
-
Constructs an initially invisible Dialog with the specified owner dialog, title, and modality.
-
Parameters:
-
owner - the owner of the dialog
-
title - the title of the dialog; a null value will be accepted without causing a NullPointerException to be thrown
-
modal - if true, dialog blocks input to other app windows when shown
-
Throws:
-
IllegalArgumentException
- if the owner's GraphicsConfiguration is not from a screen device
-
IllegalArgumentException
- if owner is null; this exception is always thrown when GraphicsEnvironment.isHeadless returns true
-
Since:
-
1.2
-
See Also:
-
GraphicsEnvironment.isHeadless()
Dialog
public Dialog(Dialog owner,
String title,
boolean modal,
GraphicsConfiguration gc)
-
Constructs an initially invisible Dialog with the specified owner dialog, title, modality, and GraphicsConfiguration.
-
Parameters:
-
owner - the owner of the dialog
-
title - the title of the dialog; a null value will be accepted without causing a NullPointerException to be thrown
-
modal - if true, dialog blocks input to other app windows when shown
-
gc - the GraphicsConfiguration of the target screen device; if gc is null, the same GraphicsConfiguration as the owning Dialog is used
-
Throws:
-
IllegalArgumentException
- if the owner's GraphicsConfiguration is not from a screen device
-
IllegalArgumentException
- if owner is null; this exception is always thrown when GraphicsEnvironment.isHeadless returns true
-
Since:
-
1.4
-
See Also:
-
GraphicsEnvironment.isHeadless()
,
Component.setSize(int, int)
,
Component.setVisible(boolean)
addNotify
public void addNotify()
-
Makes this Dialog displayable by connecting it to a native screen resource. Making a dialog displayable will cause any of its children to be made displayable. This method is called internally by the toolkit and should not be called directly by programs.
-
-
Overrides:
-
addNotify
in class
Window
-
-
See Also:
-
Component.isDisplayable()
,
Container.removeNotify()
isModal
public boolean isModal()
-
Indicates whether the dialog is modal. When a modal Dialog is made visible, user input will be blocked to the other windows in the application, except for any windows created with this dialog as their owner.
-
-
Returns:
-
true if this dialog window is modal; false otherwise.
-
See Also:
-
setModal(boolean)
setModal
public void setModal(boolean b)
-
Specifies whether this dialog should be modal.
-
-
Since:
-
JDK1.1
-
See Also:
-
isModal()
getTitle
public String getTitle()
-
Gets the title of the dialog. The title is displayed in the dialog's border.
-
-
Returns:
-
the title of this dialog window. The title may be null.
-
See Also:
-
setTitle(java.lang.String)
setTitle
public void setTitle(String title)
-
Sets the title of the Dialog.
-
-
Parameters:
-
title - the title displayed in the dialog's border; a null value results in an empty title
-
See Also:
-
getTitle()
show
@Deprecated
public void show()
-
Deprecated.
As of JDK version 1.5, replaced by
Component.setVisible(boolean)
.
-
-
Overrides:
-
show
in class
Window
-
hide
@Deprecated
public void hide()
-
Deprecated.
As of JDK version 1.5, replaced by
Component.setVisible(boolean)
.
-
-
Overrides:
-
hide
in class
Window
-
isResizable
public boolean isResizable()
-
Indicates whether this dialog is resizable by the user.
-
-
Returns:
-
true if the user can resize the dialog; false otherwise.
-
See Also:
-
setResizable(boolean)
setResizable
public void setResizable(boolean resizable)
-
Sets whether this dialog is resizable by the user.
-
-
Parameters:
-
resizable - true if the user can resize this dialog; false otherwise.
-
See Also:
-
isResizable()
setUndecorated
public void setUndecorated(boolean undecorated)
-
Disables or enables decorations for this dialog. This method can only be called while the dialog is not displayable.
-
-
Parameters:
-
undecorated - true if no dialog decorations are to be enabled; false if dialog decorations are to be enabled.
-
Throws:
-
IllegalComponentStateException - if the dialog is displayable.
-
Since:
-
1.4
-
See Also:
-
isUndecorated()
,
Component.isDisplayable()
isUndecorated
public boolean isUndecorated()
-
Indicates whether this dialog is undecorated. By default, all dialogs are initially decorated.
-
-
Returns:
-
true if dialog is undecorated; false otherwise.
-
Since:
-
1.4
-
See Also:
-
setUndecorated(boolean)
paramString
protected String paramString()
-
Returns a string representing the state of this dialog. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be null.
-
-
Overrides:
-
paramString
in class
Container
-
-
Returns:
-
the parameter string of this dialog window.
getAccessibleContext
public AccessibleContext getAccessibleContext()
-
Gets the AccessibleContext associated with this Dialog. For dialogs, the AccessibleContext takes the form of an AccessibleAWTDialog. A new AccessibleAWTDialog instance is created if necessary.
-
-
Specified by:
-
getAccessibleContext
in interface
Accessible
-
Overrides:
-
getAccessibleContext
in class
Window
-
-
Returns:
-
an AccessibleAWTDialog that serves as the AccessibleContext of this Dialog