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Eclipse Platform 2.0 |
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java.lang.Object | +--org.eclipse.jface.window.Window | +--org.eclipse.jface.dialogs.Dialog | +--org.eclipse.jface.dialogs.MessageDialog
A dialog for showing messages to the user.
This concrete dialog class can be instantiated as is, or further subclassed as required.
Nested Class Summary |
Nested classes inherited from class org.eclipse.jface.window.Window |
Window.IExceptionHandler |
Field Summary | |
static int |
ERROR
Constant for a dialog with an error image (value 1). |
static int |
INFORMATION
Constant for a dialog with an info image (value 2). |
static int |
NONE
Constant for a dialog with no image (value 0). |
static int |
QUESTION
Constant for a dialog with a question image (value 3). |
static int |
WARNING
Constant for a dialog with a warning image (value 4). |
Fields inherited from class org.eclipse.jface.dialogs.Dialog |
DLG_IMG_ERROR, DLG_IMG_INFO, DLG_IMG_MESSAGE_ERROR, DLG_IMG_MESSAGE_INFO, DLG_IMG_MESSAGE_WARNING, DLG_IMG_QUESTION, DLG_IMG_WARNING |
Fields inherited from class org.eclipse.jface.window.Window |
CANCEL, OK |
Constructor Summary | |
MessageDialog(Shell parentShell,
String dialogTitle,
Image dialogTitleImage,
String dialogMessage,
int dialogImageType,
String[] dialogButtonLabels,
int defaultIndex)
Create a message dialog. |
Method Summary | |
protected void |
buttonPressed(int buttonId)
Notifies that this dialog's button with the given id has been pressed. |
protected void |
configureShell(Shell shell)
Configures the given shell in preparation for opening this window in it. |
protected void |
createButtonsForButtonBar(Composite parent)
Adds buttons to this dialog's button bar. |
protected Control |
createCustomArea(Composite parent)
Creates and returns the contents of an area of the dialog which appears below the message and above the button bar. |
protected Control |
createDialogArea(Composite parent)
This implementation of the Dialog framework
method creates and lays out a composite and calls
createMessageArea and createCustomArea
to populate it. |
protected Button |
getButton(int index)
Gets a button in this dialog's button bar. |
protected int |
getMinimumMessageWidth()
Returns the minimum message area width in pixels This determines the minimum width of the dialog. |
protected void |
handleShellCloseEvent()
Notifies that the window's close button was pressed, the close menu was selected, or the ESCAPE key pressed. |
static boolean |
openConfirm(Shell parent,
String title,
String message)
Convenience method to open a simple confirm (OK/Cancel) dialog. |
static void |
openError(Shell parent,
String title,
String message)
Convenience method to open a standard error dialog. |
static void |
openInformation(Shell parent,
String title,
String message)
Convenience method to open a standard information dialog. |
static boolean |
openQuestion(Shell parent,
String title,
String message)
Convenience method to open a simple Yes/No question dialog. |
static void |
openWarning(Shell parent,
String title,
String message)
Convenience method to open a standard warning dialog. |
Methods inherited from class org.eclipse.jface.window.Window |
close, create, createShell, getContents, getDefaultImage, getInitialLocation, getInitialSize, getParentShell, getReturnCode, getShell, getShellListener, getShellStyle, getWindowManager, handleFontChange, initializeBounds, open, setBlockOnOpen, setDefaultImage, setExceptionHandler, setReturnCode, setShellStyle, setWindowManager |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
public static final int NONE
public static final int ERROR
public static final int INFORMATION
public static final int QUESTION
public static final int WARNING
Constructor Detail |
public MessageDialog(Shell parentShell, String dialogTitle, Image dialogTitleImage, String dialogMessage, int dialogImageType, String[] dialogButtonLabels, int defaultIndex)
The labels of the buttons to appear in the button bar are supplied in this
constructor as an array. The open
method will return the index
of the label in this array corresponding to the button that was pressed to
close the dialog. If the dialog was dismissed without pressing a button (ESC, etc.)
then -1 is returned. Note that the open
method blocks.
parentShell
- the parent shelldialogTitle
- the dialog title, or null
if nonedialogTitleImage
- the dialog title image, or null
if nonedialogMessage
- the dialog messagedialogImageType
- one of the following values:
MessageDialog.NONE
for a dialog with no image MessageDialog.ERROR
for a dialog with an error image MessageDialog.INFORMATION
for a dialog with an information image MessageDialog.QUESTION
for a dialog with a question image MessageDialog.WARNING
for a dialog with a warning image dialogButtonLabels
- an array of labels for the buttons in the button bardefaultIndex
- the index in the button label array of the default buttonMethod Detail |
protected void buttonPressed(int buttonId)
Dialog
The Dialog
implementation of this framework method calls
okPressed
if the ok button is the pressed,
and cancelPressed
if the cancel button is the pressed.
All other button presses are ignored. Subclasses may override
to handle other buttons, but should call super.buttonPressed
if the default handling of the ok and cancel buttons is desired.
buttonPressed
in class Dialog
buttonId
- the id of the button that was pressed (see
IDialogConstants.*_ID
constants)protected void configureShell(Shell shell)
Window
The default implementation of this framework method sets the shell's image and gives it a grid layout. Subclasses may extend or reimplement.
configureShell
in class Window
shell
- the shellprotected void createButtonsForButtonBar(Composite parent)
Dialog
The Dialog
implementation of this framework method adds
standard ok and cancel buttons using the createButton
framework method. These standard buttons will be accessible from
getCancelButton
, and getOKButton
.
Subclasses may override.
createButtonsForButtonBar
in class Dialog
parent
- the button bar compositeprotected Control createCustomArea(Composite parent)
The default implementation of this framework method
returns null
. Subclasses may override.
null
protected Control createDialogArea(Composite parent)
Dialog
framework
method creates and lays out a composite and calls
createMessageArea
and createCustomArea
to populate it. Subclasses should override createCustomArea
to add contents below the message.
createDialogArea
in class Dialog
parent
- the parent composite to contain the dialog area
protected Button getButton(int index)
getButton
in class Dialog
index
- the index of the button in the dialog's button bar
createButton
protected int getMinimumMessageWidth()
Subclasses may override.
protected void handleShellCloseEvent()
Window
The default implementation of this framework method
sets the window's return code to CANCEL
and closes the window using close
.
Subclasses may extend or reimplement.
handleShellCloseEvent
in class Window
public static boolean openConfirm(Shell parent, String title, String message)
parent
- the parent shell of the dialog, or null
if nonetitle
- the dialog's title, or null
if nonemessage
- the message
true
if the user presses the OK button,
false
otherwisepublic static void openError(Shell parent, String title, String message)
parent
- the parent shell of the dialog, or null
if nonetitle
- the dialog's title, or null
if nonemessage
- the messagepublic static void openInformation(Shell parent, String title, String message)
parent
- the parent shell of the dialog, or null
if nonetitle
- the dialog's title, or null
if nonemessage
- the messagepublic static boolean openQuestion(Shell parent, String title, String message)
parent
- the parent shell of the dialog, or null
if nonetitle
- the dialog's title, or null
if nonemessage
- the message
true
if the user presses the OK button,
false
otherwisepublic static void openWarning(Shell parent, String title, String message)
parent
- the parent shell of the dialog, or null
if nonetitle
- the dialog's title, or null
if nonemessage
- the message
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Eclipse Platform 2.0 |
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