Package org.eclipse.jface.wizard

Class Wizard

java.lang.Object

org.eclipse.jface.wizard.Wizard

All Implemented Interfaces:

IShellProvider, IWizard

Direct Known Subclasses:

BasicNewResourceWizard, ExternalProjectImportWizard, FileSystemExportWizard, FileSystemImportWizard, ParticipantSynchronizeWizard, RefactoringHistoryWizard, RefactoringWizard, ZipFileExportWizard, ZipFileImportWizard

public abstract class Wizard
extends Object
implements IWizard, IShellProvider

An abstract base implementation of a wizard. A typical client subclasses Wizard to implement a particular wizard.

Subclasses may call the following methods to configure the wizard:

• addPage
• setHelpAvailable
• setDefaultPageImageDescriptor
• setDialogSettings
• setNeedsProgressMonitor
• setTitleBarColor
• setWindowTitle

Subclasses may override these methods if required:

• reimplement createPageControls
• reimplement performCancel
• extend addPages
• reimplement performFinish
• extend dispose

Note that clients are free to implement IWizard from scratch instead of subclassing Wizard. Correct implementations of IWizard will work with any correct implementation of IWizardPage.

Field Summary

Fields

Modifier and Type	Field	Description
static String	DEFAULT_IMAGE	Image registry key of the default image for wizard pages (value "org.eclipse.jface.wizard.Wizard.pageImage").

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Wizard()	Creates a new empty wizard.

Method Summary

Modifier and Type	Method	Description
void	addPage(IWizardPage page)	Adds a new page to this wizard.
void	addPages()	The Wizard implementation of this IWizard method does nothing.
boolean	canFinish()	Returns whether this wizard could be finished without further user interaction.
void	createPageControls(Composite pageContainer)	The Wizard implementation of this IWizard method creates all the pages controls using IDialogPage.createControl.
void	dispose()	The Wizard implementation of this IWizard method disposes all the pages controls using DialogPage.dispose.
IWizardContainer	getContainer()	Returns the container of this wizard.
Image	getDefaultPageImage()	Returns the default page image for this wizard.
IDialogSettings	getDialogSettings()	Returns the dialog settings for this wizard.
IWizardPage	getNextPage(IWizardPage page)	Returns the successor of the given page.
IWizardPage	getPage(String name)	Returns the wizard page with the given name belonging to this wizard.
int	getPageCount()	Returns the number of pages in this wizard.
IWizardPage[]	getPages()	Returns all the pages in this wizard.
IWizardPage	getPreviousPage(IWizardPage page)	Returns the predecessor of the given page.
Shell	getShell()	Returns the wizard's shell if the wizard is visible.
IWizardPage	getStartingPage()	Returns the first page to be shown in this wizard.
RGB	getTitleBarColor()	Returns the title bar color for this wizard.
String	getWindowTitle()	Returns the window title string for this wizard.
boolean	isHelpAvailable()	Returns whether help is available for this wizard.
boolean	needsPreviousAndNextButtons()	Returns whether this wizard needs Previous and Next buttons.
boolean	needsProgressMonitor()	Returns whether this wizard needs a progress monitor.
boolean	performCancel()	The Wizard implementation of this IWizard method does nothing and returns true.
abstract boolean	performFinish()	Subclasses must implement this IWizard method to perform any special finish processing for their wizard.
void	setContainer(IWizardContainer wizardContainer)	Sets or clears the container of this wizard.
void	setDefaultPageImageDescriptor(ImageDescriptor imageDescriptor)	Sets the default page image descriptor for this wizard.
void	setDialogSettings(IDialogSettings settings)	Sets the dialog settings for this wizard.
void	setForcePreviousAndNextButtons(boolean b)	Controls whether the wizard needs Previous and Next buttons even if it currently contains only one page.
void	setHelpAvailable(boolean b)	Sets whether help is available for this wizard.
void	setNeedsProgressMonitor(boolean b)	Sets whether this wizard needs a progress monitor.
void	setTitleBarColor(RGB color)	Sets the title bar color for this wizard.
void	setWindowTitle(String newTitle)	Sets the window title for the container that hosts this page to the given string.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULT_IMAGE

public static final String DEFAULT_IMAGE

Image registry key of the default image for wizard pages (value "org.eclipse.jface.wizard.Wizard.pageImage").

See Also:

Constant Field Values

Constructor Detail

Wizard

protected Wizard()

Creates a new empty wizard.

Method Detail

addPage

public void addPage(IWizardPage page)

Adds a new page to this wizard. The page is inserted at the end of the page list.

Parameters:

page - the new page

addPages

public void addPages()

The Wizard implementation of this IWizard method does nothing. Subclasses should extend if extra pages need to be added before the wizard opens. New pages should be added by calling addPage.

Specified by:

addPages in interface IWizard

canFinish

public boolean canFinish()

Description copied from interface: IWizard

Returns whether this wizard could be finished without further user interaction.

The result of this method is typically used by the wizard container to enable or disable the Finish button.

Specified by:

canFinish in interface IWizard

Returns:

true if the wizard could be finished, and false otherwise

createPageControls

public void createPageControls(Composite pageContainer)

The Wizard implementation of this IWizard method creates all the pages controls using IDialogPage.createControl. Subclasses should reimplement this method if they want to delay creating one or more of the pages lazily. The framework ensures that the contents of a page will be created before attempting to show it.

Specified by:

createPageControls in interface IWizard

Parameters:

pageContainer - the parent control

dispose

public void dispose()

The Wizard implementation of this IWizard method disposes all the pages controls using DialogPage.dispose. Subclasses should extend this method if the wizard instance maintains addition SWT resource that need to be disposed.

Specified by:

dispose in interface IWizard

getContainer

public IWizardContainer getContainer()

Description copied from interface: IWizard

Returns the container of this wizard.

Specified by:

getContainer in interface IWizard

Returns:

the wizard container, or null if this wizard has yet to be added to a container

getDefaultPageImage

public Image getDefaultPageImage()

Description copied from interface: IWizard

Returns the default page image for this wizard.

This image can be used for pages which do not supply their own image.

Specified by:

getDefaultPageImage in interface IWizard

Returns:

the default page image

getDialogSettings

public IDialogSettings getDialogSettings()

Description copied from interface: IWizard

Returns the dialog settings for this wizard.

The dialog store is used to record state between wizard invocations (for example, radio button selections, last directory, etc.).

Specified by:

getDialogSettings in interface IWizard

Returns:

the dialog settings, or null if none

getNextPage

public IWizardPage getNextPage(IWizardPage page)

Description copied from interface: IWizard

Returns the successor of the given page.

This method is typically called by a wizard page

Specified by:

getNextPage in interface IWizard

Parameters:

page - the page

Returns:

the next page, or null if none

getPage

public IWizardPage getPage(String name)

Description copied from interface: IWizard

Returns the wizard page with the given name belonging to this wizard.

Specified by:

getPage in interface IWizard

Parameters:

name - the name of the wizard page

Returns:

the wizard page with the given name, or null if none

getPageCount

public int getPageCount()

Description copied from interface: IWizard

Returns the number of pages in this wizard.

Specified by:

getPageCount in interface IWizard

Returns:

the number of wizard pages

getPages

public IWizardPage[] getPages()

Description copied from interface: IWizard

Returns all the pages in this wizard.

Specified by:

getPages in interface IWizard

Returns:

a list of pages

getPreviousPage

public IWizardPage getPreviousPage(IWizardPage page)

Description copied from interface: IWizard

Returns the predecessor of the given page.

This method is typically called by a wizard page

Specified by:

getPreviousPage in interface IWizard

Parameters:

page - the page

Returns:

the previous page, or null if none

getShell

public Shell getShell()

Returns the wizard's shell if the wizard is visible. Otherwise null is returned.

Specified by:

getShell in interface IShellProvider

Returns:

Shell

getStartingPage

public IWizardPage getStartingPage()

Description copied from interface: IWizard

Returns the first page to be shown in this wizard.

Specified by:

getStartingPage in interface IWizard

Returns:

the first wizard page

getTitleBarColor

public RGB getTitleBarColor()

Description copied from interface: IWizard

Returns the title bar color for this wizard.

Specified by:

getTitleBarColor in interface IWizard

Returns:

the title bar color

getWindowTitle

public String getWindowTitle()

Description copied from interface: IWizard

Returns the window title string for this wizard.

Specified by:

getWindowTitle in interface IWizard

Returns:

the window title string, or null for no title

isHelpAvailable

public boolean isHelpAvailable()

Description copied from interface: IWizard

Returns whether help is available for this wizard.

The result of this method is typically used by the container to show or hide a button labeled "Help".

Note: This wizard's container might be a TrayDialog which provides its own help support that is independent of this property.

Note 2: In the default WizardDialog implementation, the "Help" button only works when IDialogPage.performHelp() is implemented.

Specified by:

isHelpAvailable in interface IWizard

Returns:

true if help is available, false otherwise

See Also:

TrayDialog.isHelpAvailable(), TrayDialog.setHelpAvailable(boolean)

needsPreviousAndNextButtons

public boolean needsPreviousAndNextButtons()

Description copied from interface: IWizard

Returns whether this wizard needs Previous and Next buttons.

The result of this method is typically used by the container.

Specified by:

needsPreviousAndNextButtons in interface IWizard

Returns:

true if Previous and Next buttons are required, and false if none are needed

needsProgressMonitor

public boolean needsProgressMonitor()

Description copied from interface: IWizard

Returns whether this wizard needs a progress monitor.

The result of this method is typically used by the container.

Specified by:

needsProgressMonitor in interface IWizard

Returns:

true if a progress monitor is required, and false if none is needed

performCancel

public boolean performCancel()

The Wizard implementation of this IWizard method does nothing and returns true. Subclasses should reimplement this method if they need to perform any special cancel processing for their wizard.

Specified by:

performCancel in interface IWizard

Returns:

true to indicate the cancel request was accepted, and false to indicate that the cancel request was refused

performFinish

public abstract boolean performFinish()

Subclasses must implement this IWizard method to perform any special finish processing for their wizard.

Specified by:

performFinish in interface IWizard

Returns:

true to indicate the finish request was accepted, and false to indicate that the finish request was refused

setContainer

public void setContainer(IWizardContainer wizardContainer)

Description copied from interface: IWizard

Sets or clears the container of this wizard.

Specified by:

setContainer in interface IWizard

Parameters:

wizardContainer - the wizard container, or null

setDefaultPageImageDescriptor

public void setDefaultPageImageDescriptor(ImageDescriptor imageDescriptor)

Sets the default page image descriptor for this wizard.

This image descriptor will be used to generate an image for a page with no image of its own; the image will be computed once and cached.

Parameters:

imageDescriptor - the default page image descriptor

setDialogSettings

public void setDialogSettings(IDialogSettings settings)

Sets the dialog settings for this wizard.

The dialog settings is used to record state between wizard invocations (for example, radio button selection, last import directory, etc.)

Parameters:

settings - the dialog settings, or null if none

See Also:

getDialogSettings()

setForcePreviousAndNextButtons

public void setForcePreviousAndNextButtons(boolean b)

Controls whether the wizard needs Previous and Next buttons even if it currently contains only one page.

This flag should be set on wizards where the first wizard page adds follow-on wizard pages based on user input.

Parameters:

b - true to always show Next and Previous buttons, and false to suppress Next and Previous buttons for single page wizards

setHelpAvailable

public void setHelpAvailable(boolean b)

Sets whether help is available for this wizard.

The result of this method is typically used by the container to show or hide the button labeled "Help".

Note: This wizard's container might be a TrayDialog which provides its own help support that is independent of this property.

Note 2: In the default WizardDialog implementation, the "Help" button only works when IDialogPage.performHelp() is implemented.

Parameters:

b - true if help is available, false otherwise

See Also:

isHelpAvailable(), TrayDialog.isHelpAvailable(), TrayDialog.setHelpAvailable(boolean)

setNeedsProgressMonitor

public void setNeedsProgressMonitor(boolean b)

Sets whether this wizard needs a progress monitor.

Parameters:

b - true if a progress monitor is required, and false if none is needed

See Also:

needsProgressMonitor()

setTitleBarColor

public void setTitleBarColor(RGB color)

Sets the title bar color for this wizard.

Parameters:

color - the title bar color

setWindowTitle

public void setWindowTitle(String newTitle)

Sets the window title for the container that hosts this page to the given string.

Parameters:

newTitle - the window title for the container