Package org.eclipse.jface.wizard

Class WizardDialog

java.lang.Object
org.eclipse.jface.window.Window
org.eclipse.jface.dialogs.Dialog
org.eclipse.jface.dialogs.TrayDialog
org.eclipse.jface.dialogs.TitleAreaDialog
org.eclipse.jface.wizard.WizardDialog
All Implemented Interfaces:
IPageChangeProvider, IRunnableContext, IShellProvider, IWizardContainer, IWizardContainer2
public class WizardDialog extends TitleAreaDialog implements IWizardContainer2, IPageChangeProvider
A dialog to show a wizard to the end user.

In typical usage, the client instantiates this class with a particular wizard. The dialog serves as the wizard container and orchestrates the presentation of its pages.

The standard layout is roughly as follows: it has an area at the top containing both the wizard's title, description, and image; the actual wizard page appears in the middle; below that is a progress indicator (which is made visible if needed); and at the bottom of the page is message line and a button bar containing Help, Next, Back, Finish, and Cancel buttons (or some subset).

Clients may subclass WizardDialog, although this is rarely required.

  • Field Details

    • WIZ_IMG_ERROR

      public static final String WIZ_IMG_ERROR
      Image registry key for error message image (value "dialog_title_error_image").
      See Also:

  • Constructor Details

    • WizardDialog

      public WizardDialog(Shell parentShell, IWizard newWizard)
      Creates a new wizard dialog for the given wizard.
      Parameters:
      parentShell - the parent shell
      newWizard - the wizard this dialog is working on

  • Method Details

    • setShellStyle

      public void setShellStyle(int newShellStyle)
      Sets the shell style of the wizard dialog.

      Examples:
      To use the default style without the SWT.PRIMARY_MODAL bit:
      setShellStyle(getShellStyle() & ~SWT.PRIMARY_MODAL)

      To use the default style without the SWT.RESIZE bit:
      setShellStyle(getShellStyle() & ~SWT.RESIZE)

      Sets the shell style bits. This method has no effect after the shell is created.

      The shell style bits are used by the framework method createShell when creating this window's shell.

      Overrides:
      setShellStyle in class Window
      Parameters:
      newShellStyle - the new shell style bits
      See Also:

    • getShellStyle

      public int getShellStyle()
      Description copied from class: Window
      Returns the shell style bits.

      The default value is SWT.CLOSE|SWT.MIN|SWT.MAX|SWT.RESIZE. Subclasses should call setShellStyle to change this value, rather than overriding this method.

      Overrides:
      getShellStyle in class Window
      Returns:
      the shell style bits

    • setModal

      public WizardDialog setModal(boolean modal)
      Option to set the modality of the WizardDialog. This method must be called before the dialog's shell is created, e.g. before you call Window.open() for the first time.
      Parameters:
      modal - true (default) if the WizardDialog should block the underlying window.
      Returns:
      this WizardDialog
      Since:
      3.16

    • isModal

      public boolean isModal()
      Returns:
      false if the user interface blocks the underlying window (modal) or true if the underlying window is not blocked.
      Since:
      3.16
      See Also:

    • backPressed

      protected void backPressed()
      The Back button has been pressed.

    • buttonPressed

      protected void buttonPressed(int buttonId)
      Description copied from class: Dialog
      Notifies that this dialog's button with the given id has been pressed.

      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.

      Overrides:
      buttonPressed in class Dialog
      Parameters:
      buttonId - the id of the button that was pressed (see IDialogConstants.*_ID constants)

    • cancelPressed

      protected void cancelPressed()
      Description copied from class: Dialog
      Notifies that the cancel button of this dialog has been pressed.

      The Dialog implementation of this framework method sets this dialog's return code to Window.CANCEL and closes the dialog. Subclasses may override if desired.

      Overrides:
      cancelPressed in class Dialog

    • close

      public boolean close()
      Description copied from class: Window
      Closes this window, disposes its shell, and removes this window from its window manager (if it has one).

      This framework method may be extended (super.close must be called).

      Note that in order to prevent recursive calls to this method it does not call Shell#close(). As a result ShellListeners will not receive a shellClosed event.

      Overrides:
      close in class Dialog
      Returns:
      true if the window is (or was already) closed, and false if it is still open
      See Also:

    • configureShell

      protected void configureShell(Shell newShell)
      Description copied from class: Window
      Configures the given shell in preparation for opening this window in it.

      The default implementation of this framework method sets the shell's image and gives it a grid layout. Subclasses may extend or reimplement.

      Overrides:
      configureShell in class Window
      Parameters:
      newShell - the shell

    • createButtonsForButtonBar

      protected void createButtonsForButtonBar(Composite parent)
      Creates the buttons for this dialog's button bar.

      The WizardDialog implementation of this framework method prevents the parent composite's columns from being made equal width in order to remove the margin between the Back and Next buttons.

      Overrides:
      createButtonsForButtonBar in class Dialog
      Parameters:
      parent - the parent composite to contain the buttons

    • setButtonLayoutData

      protected void setButtonLayoutData(Button button)
      Description copied from class: Dialog
      Set the layout data of the button to a GridData with appropriate heights and widths.
      Overrides:
      setButtonLayoutData in class Dialog
      Parameters:
      button - The button which layout data is to be set.

    • getButton

      protected Button getButton(int id)
      Return the cancel button if the id is a the cancel id.
      Overrides:
      getButton in class Dialog
      Parameters:
      id - the button id
      Returns:
      the button corresponding to the button id
      See Also:

    • createContents

      protected Control createContents(Composite parent)
      The WizardDialog implementation of this Window method calls call IWizard.addPages to allow the current wizard to add extra pages, then super.createContents to create the controls. It then calls IWizard.createPageControls to allow the wizard to pre-create their page controls prior to opening, so that the wizard opens to the correct size. And finally it shows the first page.
      Overrides:
      createContents in class TitleAreaDialog
      Parameters:
      parent - the parent composite for the controls in this window. The type of layout used is determined by getLayout()
      Returns:
      the control that will be returned by subsequent calls to getContents()

    • createDialogArea

      protected Control createDialogArea(Composite parent)
      Description copied from class: TitleAreaDialog
      Creates and returns the contents of the upper part of this dialog (above the button bar).

      The Dialog implementation of this framework method creates and returns a new Composite with no margins and spacing. Subclasses should override.

      Overrides:
      createDialogArea in class TitleAreaDialog
      Parameters:
      parent - The parent composite to contain the dialog area
      Returns:
      the dialog area control

    • createProgressMonitorPart

      protected ProgressMonitorPart createProgressMonitorPart(Composite composite, GridLayout pmlayout)
      Hook method for subclasses to create a custom progress monitor part.

      The default implementation creates a progress monitor with a stop button will be created.

      Parameters:
      composite - the parent composite
      pmlayout - the layout
      Returns:
      ProgressMonitorPart the progress monitor part

    • finishPressed

      protected void finishPressed()
      The Finish button has been pressed.

    • getCurrentPage

      public IWizardPage getCurrentPage()
      Description copied from interface: IWizardContainer
      Returns the current wizard page for this container.
      Specified by:
      getCurrentPage in interface IWizardContainer
      Returns:
      the current wizard page, or null if the container is not yet showing the wizard
      See Also:

    • getProgressMonitor

      protected IProgressMonitor getProgressMonitor()
      Returns the progress monitor for this wizard dialog (if it has one).
      Returns:
      the progress monitor, or null if this wizard dialog does not have one

    • getWizard

      protected IWizard getWizard()
      Returns the wizard this dialog is currently displaying.
      Returns:
      the current wizard

    • helpPressed

      protected void helpPressed()
      The Help button has been pressed.

    • nextPressed

      protected void nextPressed()
      The Next button has been pressed.

    • run

      public void run(boolean fork, boolean cancelable, IRunnableWithProgress runnable) throws InvocationTargetException, InterruptedException
      This implementation of IRunnableContext#run(boolean, boolean, IRunnableWithProgress) blocks until the runnable has been run, regardless of the value of fork. It is recommended that fork is set to true in most cases. If fork is set to false, the runnable will run in the UI thread and it is the runnable's responsibility to call Display.readAndDispatch() to ensure UI responsiveness. UI state is saved prior to executing the long-running operation and is restored after the long-running operation completes executing. Any attempt to change the UI state of the wizard in the long-running operation will be nullified when original UI state is restored.
      Specified by:
      run in interface IRunnableContext
      Parameters:
      fork - true if the runnable should be run in a separate thread, and false to run in the same thread
      cancelable - true to enable the cancelation, and false to make the operation uncancellable
      runnable - the runnable to run
      Throws:
      InvocationTargetException - wraps any exception or error which occurs while running the runnable
      InterruptedException - propagated by the context if the runnable acknowledges cancelation by throwing this exception. This should not be thrown if cancelable is false.

    • setMinimumPageSize

      public void setMinimumPageSize(int minWidth, int minHeight)
      Sets the minimum page size used for the pages.
      Parameters:
      minWidth - the minimum page width
      minHeight - the minimum page height
      See Also:

    • setMinimumPageSize

      public void setMinimumPageSize(Point size)
      Sets the minimum page size used for the pages.
      Parameters:
      size - the page size encoded as new Point(width,height)
      See Also:

    • setPageSize

      public void setPageSize(int width, int height)
      Sets the size of all pages. The given size takes precedence over computed sizes.
      Parameters:
      width - the page width
      height - the page height
      See Also:

    • setPageSize

      public void setPageSize(Point size)
      Sets the size of all pages. The given size takes precedence over computed sizes.
      Parameters:
      size - the page size encoded as new Point(width,height)
      See Also:

    • setWizard

      protected void setWizard(IWizard newWizard)
      Sets the wizard this dialog is currently displaying.
      Parameters:
      newWizard - the wizard

    • showPage

      public void showPage(IWizardPage page)
      Description copied from interface: IWizardContainer
      Makes the given page visible.

      This method should not be use for normal page sequencing (back, next) which is handled by the container itself. It may, however, be used to move to another page in response to some custom action such as double clicking in a list.

      Specified by:
      showPage in interface IWizardContainer
      Parameters:
      page - the page to show
      See Also:

    • update

      protected void update()
      Updates this dialog's controls to reflect the current page.

    • updateButtons

      public void updateButtons()
      Description copied from interface: IWizardContainer
      Adjusts the enable state of the Back, Next, and Finish buttons to reflect the state of the currently active page in this container.

      This method is called by the container itself when its wizard page changes and may be called by the page at other times to force a button state update.

      Specified by:
      updateButtons in interface IWizardContainer

    • updateMessage

      public void updateMessage()
      Description copied from interface: IWizardContainer
      Updates the message (or error message) shown in the message line to reflect the state of the currently active page in this container.

      This method is called by the container itself when its wizard page changes and may be called by the page at other times to force a message update.

      Specified by:
      updateMessage in interface IWizardContainer

    • updateSize

      protected void updateSize(IWizardPage page)
      Computes the correct dialog size for the current page and resizes its shell if necessary. Also causes the container to refresh its layout.
      Parameters:
      page - the wizard page to use to resize the dialog
      Since:
      2.0

    • updateSize

      public void updateSize()
      Description copied from interface: IWizardContainer2
      Updates the window size to reflect the state of the current wizard.

      This method is called by the container itself when its wizard changes and may be called by the wizard at other times to force a window size change.

      Specified by:
      updateSize in interface IWizardContainer2

    • updateTitleBar

      public void updateTitleBar()
      Description copied from interface: IWizardContainer
      Updates the title bar (title, description, and image) to reflect the state of the currently active page in this container.

      This method is called by the container itself when its wizard page changes and may be called by the page at other times to force a title bar update.

      Specified by:
      updateTitleBar in interface IWizardContainer

    • updateWindowTitle

      public void updateWindowTitle()
      Description copied from interface: IWizardContainer
      Updates the window title to reflect the state of the current wizard.

      This method is called by the container itself when its wizard changes and may be called by the wizard at other times to force a window title change.

      Specified by:
      updateWindowTitle in interface IWizardContainer

    • getSelectedPage

      public Object getSelectedPage()
      Description copied from interface: IPageChangeProvider
      Returns the currently selected page in the dialog.
      Specified by:
      getSelectedPage in interface IPageChangeProvider
      Returns:
      the selected page in the dialog or null if none is selected. The type may be domain specific. In the JFace provided dialogs this will be an instance of IDialogPage.

    • addPageChangedListener

      public void addPageChangedListener(IPageChangedListener listener)
      Description copied from interface: IPageChangeProvider
      Adds a listener for page changes in this page change provider. Has no effect if an identical listener is already registered.
      Specified by:
      addPageChangedListener in interface IPageChangeProvider
      Parameters:
      listener - a page changed listener

    • removePageChangedListener

      public void removePageChangedListener(IPageChangedListener listener)
      Description copied from interface: IPageChangeProvider
      Removes the given page change listener from this page change provider. Has no effect if an identical listener is not registered.
      Specified by:
      removePageChangedListener in interface IPageChangeProvider
      Parameters:
      listener - a page changed listener

    • firePageChanged

      protected void firePageChanged(PageChangedEvent event)
      Notifies any selection changed listeners that the selected page has changed. Only listeners registered at the time this method is called are notified.
      Parameters:
      event - a selection changed event
      Since:
      3.1
      See Also:

    • addPageChangingListener

      public void addPageChangingListener(IPageChangingListener listener)
      Adds a listener for page changes to the list of page changing listeners registered for this dialog. Has no effect if an identical listener is already registered.
      Parameters:
      listener - a page changing listener
      Since:
      3.3

    • removePageChangingListener

      public void removePageChangingListener(IPageChangingListener listener)
      Removes the provided page changing listener from the list of page changing listeners registered for the dialog.
      Parameters:
      listener - a page changing listener
      Since:
      3.3

    • firePageChanging

      protected void firePageChanging(PageChangingEvent event)
      Notifies any page changing listeners that the currently selected dialog page is changing. Only listeners registered at the time this method is called are notified.
      Parameters:
      event - a selection changing event
      Since:
      3.3
      See Also: