org.csstudio.ui.util.wizards
Class WizardNewFileCreationPage

java.lang.Object
  WizardPage
      org.csstudio.ui.util.wizards.WizardNewFileCreationPage

public class WizardNewFileCreationPage
extends WizardPage

Standard main page for a wizard that creates a file resource.

This page may be used by clients as-is; it may be also be subclassed to suit.

Subclasses may override

• getInitialContents
• getNewFileLabel

Subclasses may extend

• handleEvent

Code is based upon org.eclipse.ui.dialogs.WizardNewFileCreationPage in plugin org.eclipse.ui.ide.

Version:

$Revision$

Author:

Alexander Will

WizardNewFileCreationPage

public WizardNewFileCreationPage(java.lang.String pageName,
                                 IStructuredSelection selection)

Creates a new file creation wizard page. If the initial resource selection contains exactly one container resource then it will be used as the default container resource.

Parameters:

pageName - the name of the page

selection - the current resource selection

WizardNewFileCreationPage

public WizardNewFileCreationPage(java.lang.String pageName,
                                 IStructuredSelection selection,
                                 boolean canChooseProject)

Creates a new file creation wizard page. If the initial resource selection contains exactly one container resource then it will be used as the default container resource.

Parameters:

pageName - the name of the page

selection - the current resource selection

canChooseProject - flag to allow the selection of the target project

createControl

public final void createControl(Composite parent)

createFile

protected final void createFile(IFile fileHandle,
                                java.io.InputStream contents)
                         throws CoreException

Creates a file resource given the file handle and contents.

Parameters:

fileHandle - the file handle to create a file resource with

contents - the initial contents of the new file resource, or null if none (equivalent to an empty stream)

Throws:

CoreException - if the operation fails

createFileHandle

protected final IFile createFileHandle(IPath filePath)

Creates a file resource handle for the file with the given workspace path. This method does not create the file resource; this is the responsibility of createFile.

Parameters:

filePath - the path of the file resource to create a handle for

Returns:

the new file resource handle

See Also:

createFile(IFile, java.io.InputStream)

createNewFile

public final IFile createNewFile()

Creates a new file resource in the selected container and with the selected name. Creates any missing resource containers along the path; does nothing if the container resources already exist.

In normal usage, this method is invoked after the user has pressed Finish on the wizard; the enablement of the Finish button implies that all controls on on this page currently contain valid values.

Note that this page caches the new file once it has been successfully created; subsequent invocations of this method will answer the same file resource without attempting to create it again.

This method should be called within a workspace modify operation since it creates resources.

Returns:

the created file resource, or null if the file was not created

getContainerFullPath

public final IPath getContainerFullPath()

Returns the current full path of the containing resource as entered or selected by the user, or its anticipated initial value.

Returns:

the container's full path, anticipated initial value, or null if no path is known

getFileName

public java.lang.String getFileName()

Returns the current file name as entered by the user, or its anticipated initial value.

Returns:

the file name, its anticipated initial value, or null if no file name is known

getInitialContents

protected java.io.InputStream getInitialContents()

Returns a stream containing the initial contents to be given to new file resource instances. Subclasses may wish to override. This default implementation provides no initial contents.

Returns:

initial contents to be given to new file resource instances

getNewFileLabel

protected java.lang.String getNewFileLabel()

Returns the label to display in the file name specification visual component group.

Subclasses may reimplement.

Returns:

the label to display in the file name specification visual component group

handleEvent

public void handleEvent(Event event)

The WizardNewFileCreationPage implementation of this Listener method handles all events and enablements for controls on this page. Subclasses may extend.

Parameters:

event - The event to handle.

initialPopulateContainerNameField

protected final void initialPopulateContainerNameField()

Sets the initial contents of the container name entry field, based upon either a previously-specified initial value or the ability to determine such a value.

setContainerFullPath

public final void setContainerFullPath(IPath path)

Sets the value of this page's container name field, or stores it for future use if this page's controls do not exist yet.

Parameters:

path - the full path to the container

setFileName

public final void setFileName(java.lang.String value)

Sets the value of this page's file name field, or stores it for future use if this page's controls do not exist yet.

Parameters:

value - new file name

validatePage

protected final boolean validatePage()

Returns whether this page's controls currently all contain valid values.

Returns:

true if all controls are valid, and false if at least one is invalid

setVisible

public final void setVisible(boolean visible)

getFileExtension

public java.lang.String getFileExtension()

Return the file extension.

Returns:

The file extension.