Java open with dialog

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 may have another window 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 some other top-level windows in the application, except for any windows created with the dialog as their owner. See AWT Modality specification for details. Dialogs are capable of generating the following WindowEvents : WindowOpened , WindowClosing , WindowClosed , WindowActivated , WindowDeactivated , WindowGainedFocus , WindowLostFocus .

Nested Class Summary

Nested classes/interfaces inherited from class java.awt.Window

Nested classes/interfaces inherited from class java.awt.Container

Nested classes/interfaces inherited from class java.awt.Component

Field Summary

Fields inherited from class java.awt.Component

Fields inherited from interface java.awt.image.ImageObserver

Constructor Summary

Constructs an initially invisible, modeless Dialog with the specified owner Dialog and an empty title.

Constructs an initially invisible Dialog with the specified owner Dialog , title, modality and GraphicsConfiguration .

Constructs an initially invisible, modeless Dialog with the specified owner Frame and an empty title.

Constructs an initially invisible Dialog with the specified owner Frame and modality and an empty title.

Constructs an initially invisible Dialog with the specified owner Frame , title, modality, and GraphicsConfiguration .

Constructs an initially invisible, modeless Dialog with the specified owner Window and an empty title.

Constructs an initially invisible Dialog with the specified owner Window and modality and an empty title.

Constructs an initially invisible Dialog with the specified owner Window , title, modality and GraphicsConfiguration .

Method Summary

If this Window is visible, sends this Window to the back and may cause it to lose focus or activation if it is the focused or active Window.

Methods inherited from class java.awt.Window

Methods inherited from class java.awt.Container

Methods inherited from class java.awt.Component

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_MODALITY_TYPE

Default modality type for modal dialogs. The default modality type is APPLICATION_MODAL . Calling the oldstyle setModal(true) is equal to setModalityType(DEFAULT_MODALITY_TYPE) .

Constructor Detail

Dialog

Constructs an initially invisible, modeless Dialog with the specified owner Frame and an empty title.

Dialog

Constructs an initially invisible Dialog with the specified owner Frame and modality and an empty title.

Dialog

public Dialog(Frame owner, String title, boolean modal)

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 .

Dialog

Constructs an initially invisible, modeless Dialog with the specified owner Dialog and an empty title.

Dialog

public Dialog(Dialog owner, String title, boolean modal)

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 .

Dialog

Constructs an initially invisible, modeless Dialog with the specified owner Window and an empty title.

Dialog

public Dialog(Window owner, Dialog.ModalityType modalityType)

Constructs an initially invisible Dialog with the specified owner Window and modality and an empty title.

Dialog

public Dialog(Window owner, String title, Dialog.ModalityType modalityType)

Dialog

public Dialog(Window owner, String title, Dialog.ModalityType modalityType, GraphicsConfiguration gc)

Constructs an initially invisible Dialog with the specified owner Window , title, modality and GraphicsConfiguration .

Method Detail

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.

isModal

Indicates whether the dialog is modal. This method is obsolete and is kept for backwards compatibility only. Use getModalityType() instead.

setModal

public void setModal(boolean modal)

Specifies whether this dialog should be modal. This method is obsolete and is kept for backwards compatibility only. Use setModalityType() instead. Note: changing modality of the visible dialog may have no effect until it is hidden and then shown again.

getModalityType

setModalityType

Sets the modality type for this dialog. See ModalityType for possible modality types. If the given modality type is not supported, MODELESS is used. You may want to call getModalityType() after calling this method to ensure that the modality type has been set. Note: changing modality of the visible dialog may have no effect until it is hidden and then shown again.

getTitle

setTitle

setVisible

public void setVisible(boolean b)

setVisible(true) : If the dialog is not already visible, this call will not return until the dialog is hidden by calling setVisible(false) or dispose .
setVisible(false) : Hides the dialog and then returns on setVisible(true) if it is currently blocked.
It is OK to call this method from the event dispatching thread because the toolkit ensures that other events are not blocked while this method is blocked.

show

Makes the Dialog visible. If the dialog and/or its owner are not yet displayable, both are made displayable. The dialog will be validated prior to being made visible. If the dialog is already visible, this will bring the dialog to the front. If the dialog is modal and is not already visible, this call will not return until the dialog is hidden by calling hide or dispose. It is permissible to show modal dialogs from the event dispatching thread because the toolkit will ensure that another event pump runs while the one which invoked this method is blocked.

hide

toBack

If this Window is visible, sends this Window to the back and may cause it to lose focus or activation if it is the focused or active Window. Places this Window at the bottom of the stacking order and shows it behind any other Windows in this VM. No action will take place is this Window is not visible. Some platforms do not allow Windows which are owned by other Windows to appear below their owners. Every attempt will be made to move this Window as low as possible in the stacking order; however, developers should not assume that this method will move this Window below all other windows in every situation. Because of variations in native windowing systems, no guarantees about changes to the focused and active Windows can be made. Developers must never assume that this Window is no longer the focused or active Window until this Window receives a WINDOW_LOST_FOCUS or WINDOW_DEACTIVATED event. On platforms where the top-most window is the focused window, this method will probably cause this Window to lose focus. In that case, the next highest, focusable Window in this VM will receive focus. On platforms where the stacking order does not typically affect the focused window, this method will probably leave the focused and active Windows unchanged. If this dialog is modal and blocks some windows, then all of them are also sent to the back to keep them below the blocking dialog.

isResizable

public boolean isResizable()

Indicates whether this dialog is resizable by the user. By default, all dialogs are initially resizable.

setResizable

public void setResizable(boolean resizable)

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. To make this dialog decorated, it must be opaque and have the default shape, otherwise the IllegalComponentStateException will be thrown. Refer to Window.setShape(java.awt.Shape) , Window.setOpacity(float) and Window.setBackground(java.awt.Color) for details

isUndecorated

public boolean isUndecorated()

setOpacity

public void setOpacity(float opacity)

The TRANSLUCENT translucency must be supported by the underlying system
The window must be undecorated (see Frame.setUndecorated(boolean) and setUndecorated(boolean) )
The window must not be in full-screen mode (see GraphicsDevice.setFullScreenWindow(Window) )

setShape

The PERPIXEL_TRANSPARENT translucency must be supported by the underlying system
The window must be undecorated (see Frame.setUndecorated(boolean) and setUndecorated(boolean) )
The window must not be in full-screen mode (see GraphicsDevice.setFullScreenWindow(Window) )

setBackground

The PERPIXEL_TRANSLUCENT translucency must be supported by the graphics device where this window is located
The window must be undecorated (see Frame.setUndecorated(boolean) and setUndecorated(boolean) )
The window must not be in full-screen mode (see GraphicsDevice.setFullScreenWindow(Window) )

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 .

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.

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