Class TrayDialog
- All Implemented Interfaces:
IShellProvider
- Direct Known Subclasses:
AbstractSelectionDialog
,CompareDialog
,DialogMarkerProperties
,FormDialog
,ImportTypeDialog
,PreferenceDialog
,SaveablePartDialog
,SelectionDialog
,StatusDialog
,TitleAreaDialog
TrayDialog
is a specialized Dialog
that can contain
a tray on its side. The tray's content is provided as a DialogTray
.
It is recommended to subclass this class instead of Dialog
in all
cases except where the dialog should never show a tray. For example, dialogs
which are very short, simple, and quick to dismiss (e.g. a message dialog with
an OK button) should subclass Dialog
.
Note: Trays are not supported on dialogs that use a custom layout on the
Shell
by overriding Window#getLayout()
.
- Since:
- 3.2
- See Also:
-
Nested Class Summary
Nested classes/interfaces inherited from class org.eclipse.jface.window.Window
Window.IExceptionHandler
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Field Summary
Fields inherited from class org.eclipse.jface.dialogs.Dialog
blockedHandler, buttonBar, DIALOG_DEFAULT_BOUNDS, DIALOG_PERSISTLOCATION, DIALOG_PERSISTSIZE, dialogArea, DLG_IMG_ERROR, DLG_IMG_HELP, DLG_IMG_INFO, DLG_IMG_MESSAGE_ERROR, DLG_IMG_MESSAGE_INFO, DLG_IMG_MESSAGE_WARNING, DLG_IMG_QUESTION, DLG_IMG_WARNING, ELLIPSIS
Fields inherited from class org.eclipse.jface.window.Window
CANCEL, OK, resizeHasOccurred
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Constructor Summary
ModifierConstructorDescriptionprotected
TrayDialog
(IShellProvider parentShell) Creates a tray dialog with the given parent.protected
TrayDialog
(Shell shell) Creates a tray dialog instance. -
Method Summary
Modifier and TypeMethodDescriptionvoid
Closes this dialog's tray, disposing its widgets.protected Control
createButtonBar
(Composite parent) Creates and returns the contents of this dialog's button bar.protected Control
createHelpControl
(Composite parent) Creates a new help control that provides access to context help.protected Layout
The tray dialog's default layout is a modified version of the defaultWindow
layout that can accomodate a tray, however it still conforms to the description of theWindow
default layout.getTray()
Returns the tray currently shown in the dialog, ornull
if there is no tray.protected void
Notifies that the window's close button was pressed, the close menu was selected, or the ESCAPE key pressed.static boolean
Tests if dialogs that have help control should show it all the time or only when explicitly requested for each dialog instance.boolean
Returns whether or not context help is available for this dialog.void
openTray
(DialogTray tray) Constructs the tray's widgets and displays the tray in this dialog.static void
setDialogHelpAvailable
(boolean helpAvailable) Sets whether JFace dialogs that support help control should show the control by default.void
setHelpAvailable
(boolean helpAvailable) Sets whether or not context help is available for this dialog.Methods inherited from class org.eclipse.jface.dialogs.Dialog
applyDialogFont, buttonPressed, cancelPressed, close, convertHeightInCharsToPixels, convertHeightInCharsToPixels, convertHorizontalDLUsToPixels, convertHorizontalDLUsToPixels, convertVerticalDLUsToPixels, convertVerticalDLUsToPixels, convertWidthInCharsToPixels, convertWidthInCharsToPixels, create, createButton, createButtonsForButtonBar, createContents, createDialogArea, dialogFontIsDefault, getBlockedHandler, getButton, getButtonBar, getCancelButton, getDialogArea, getDialogBoundsSettings, getDialogBoundsStrategy, getImage, getInitialLocation, getInitialSize, getOKButton, initializeBounds, initializeDialogUnits, isResizable, okPressed, setBlockedHandler, setButtonLayoutData, setButtonLayoutFormData, shortenText
Methods inherited from class org.eclipse.jface.window.Window
canHandleShellCloseEvent, configureShell, constrainShellSize, createShell, getConstrainedShellBounds, getContents, getDefaultImage, getDefaultImages, getDefaultOrientation, getParentShell, getReturnCode, getShell, getShellListener, getShellStyle, getWindowManager, handleFontChange, open, setBlockOnOpen, setDefaultImage, setDefaultImages, setDefaultModalParent, setDefaultOrientation, setExceptionHandler, setParentShell, setReturnCode, setShellStyle, setWindowManager
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Constructor Details
-
TrayDialog
Creates a tray dialog instance. Note that the window will have no visual representation (no widgets) until it is told to open.- Parameters:
shell
- the parent shell, ornull
to create a top-level shell
-
TrayDialog
Creates a tray dialog with the given parent.- Parameters:
parentShell
- the object that returns the current parent shell
-
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Method Details
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closeTray
Closes this dialog's tray, disposing its widgets.- Throws:
IllegalStateException
- if the tray was not open
-
handleShellCloseEvent
protected void handleShellCloseEvent()Description copied from class:Window
Notifies that the window's close button was pressed, the close menu was selected, or the ESCAPE key pressed.The default implementation of this framework method sets the window's return code to
CANCEL
and closes the window usingclose
. Subclasses may extend or reimplement.- Overrides:
handleShellCloseEvent
in classWindow
-
createButtonBar
Description copied from class:Dialog
Creates and returns the contents of this dialog's button bar.The
Dialog
implementation of this framework method lays out a button bar and calls thecreateButtonsForButtonBar
framework method to populate it. Subclasses may override.The returned control's layout data must be an instance of
GridData
.- Overrides:
createButtonBar
in classDialog
- Parameters:
parent
- the parent composite to contain the button bar- Returns:
- the button bar control
-
createHelpControl
Creates a new help control that provides access to context help.The
TrayDialog
implementation of this method creates the control, registers it for selection events including selection, Note that the parent's layout is assumed to be aGridLayout
and the number of columns in this layout is incremented. Subclasses may override.- Parameters:
parent
- the parent composite- Returns:
- the help control
-
isHelpAvailable
public boolean isHelpAvailable()Returns whether or not context help is available for this dialog. This can affect whether or not the dialog will display additional help mechanisms such as a help control in the button bar.- Returns:
- whether or not context help is available for this dialog
-
getLayout
The tray dialog's default layout is a modified version of the defaultWindow
layout that can accomodate a tray, however it still conforms to the description of theWindow
default layout.Note: Trays may not be supported with all custom layouts on the dialog's Shell. To avoid problems, use a single outer
Composite
for your dialog area, and set your custom layout on thatComposite
. -
getTray
Returns the tray currently shown in the dialog, ornull
if there is no tray.- Returns:
- the dialog's current tray, or
null
if there is none
-
openTray
Constructs the tray's widgets and displays the tray in this dialog. The dialog's size will be adjusted to accommodate the tray.- Parameters:
tray
- the tray to show in this dialog- Throws:
IllegalStateException
- if the dialog already has a tray openUnsupportedOperationException
- if the dialog does not support trays, for example if it uses a custom layout.
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setHelpAvailable
public void setHelpAvailable(boolean helpAvailable) Sets whether or not context help is available for this dialog. This can affect whether or not the dialog will display additional help mechanisms such as a help control in the button bar.- Parameters:
helpAvailable
- whether or not context help is available for the dialog
-
isDialogHelpAvailable
public static boolean isDialogHelpAvailable()Tests if dialogs that have help control should show it all the time or only when explicitly requested for each dialog instance.- Returns:
true
if dialogs that support help control should show it by default,false
otherwise.- Since:
- 3.2
-
setDialogHelpAvailable
public static void setDialogHelpAvailable(boolean helpAvailable) Sets whether JFace dialogs that support help control should show the control by default. If set tofalse
, help control can still be shown on a per-dialog basis.- Parameters:
helpAvailable
-true
to show the help control,false
otherwise.- Since:
- 3.2
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