Python projectManager.ProjectManager類代碼示例

    def openProjectFile(self, projectFilePath):
        # Make sure all workflow sub-classes have been loaded,
        #  so we can detect the workflow type in the project.
        import ilastik.workflows
        try:
            # Open the project file
            hdf5File, workflow_class, _ = ProjectManager.openProjectFile(projectFilePath)
            
            # Create our project manager
            # This instantiates the workflow and applies all settings from the project.
            self.projectManager = ProjectManager( workflow_class,
                                                  headless=True,
                                                  workflow_cmdline_args=self._workflow_cmdline_args )
            self.projectManager._loadProject(hdf5File, projectFilePath, readOnly = False)
            
        except ProjectManager.ProjectVersionError:
            # Couldn't open project.  Try importing it.
            oldProjectFilePath = projectFilePath
            name, ext = os.path.splitext(oldProjectFilePath)
    
            # Create a brand new project file.
            projectFilePath = name + "_imported" + ext
            logger.info("Importing project as '" + projectFilePath + "'")
            hdf5File = ProjectManager.createBlankProjectFile(projectFilePath)

            # For now, we assume that any imported projects are pixel classification workflow projects.
            import ilastik.workflows
            default_workflow = ilastik.workflows.pixelClassification.PixelClassificationWorkflow

            # Create the project manager.
            # Here, we provide an additional parameter: the path of the project we're importing from. 
            self.projectManager = ProjectManager( default_workflow,
                                                  importFromPath=oldProjectFilePath,
                                                  headless=True )
            self.projectManager._importProject(oldProjectFilePath, hdf5File, projectFilePath,readOnly = False)

 def createAndLoadNewProject(self, newProjectFilePath, workflow_class):
     hdf5File = ProjectManager.createBlankProjectFile(newProjectFilePath)
     readOnly = False
     self.projectManager = ProjectManager(
         self, workflow_class, headless=True, workflow_cmdline_args=self._workflow_cmdline_args
     )
     self.projectManager._loadProject(hdf5File, newProjectFilePath, readOnly)

    def openProjectFile(self, projectFilePath, force_readonly=False):
        # Make sure all workflow sub-classes have been loaded,
        #  so we can detect the workflow type in the project.
        import ilastik.workflows
        try:
            # Open the project file
            hdf5File, workflow_class, readOnly = ProjectManager.openProjectFile(projectFilePath, force_readonly)

            # If there are any "creation-time" command-line args saved to the project file,
            #  load them so that the workflow can be instantiated with the same settings 
            #  that were used when the project was first created. 
            project_creation_args = []
            if "workflow_cmdline_args" in hdf5File.keys():
                if len(hdf5File["workflow_cmdline_args"]) > 0:
                    project_creation_args = map(str, hdf5File["workflow_cmdline_args"][...])

            if workflow_class is None:
                # If the project file has no known workflow, we assume pixel classification
                import ilastik.workflows
                workflow_class = ilastik.workflows.pixelClassification.PixelClassificationWorkflow
                import warnings
                warnings.warn( "Your project file ({}) does not specify a workflow type.  "
                               "Assuming Pixel Classification".format( projectFilePath ) )            
            
            # Create our project manager
            # This instantiates the workflow and applies all settings from the project.
            self.projectManager = ProjectManager( self,
                                                  workflow_class,
                                                  headless=True,
                                                  workflow_cmdline_args=self._workflow_cmdline_args,
                                                  project_creation_args=project_creation_args )
            self.projectManager._loadProject(hdf5File, projectFilePath, readOnly)

        except ProjectManager.FileMissingError:
            logger.error("Couldn't find project file: {}".format( projectFilePath ))
            raise            
        except ProjectManager.ProjectVersionError:
            # Couldn't open project.  Try importing it.
            oldProjectFilePath = projectFilePath
            name, ext = os.path.splitext(oldProjectFilePath)
    
            # Create a brand new project file.
            projectFilePath = name + "_imported" + ext
            logger.info("Importing project as '" + projectFilePath + "'")
            hdf5File = ProjectManager.createBlankProjectFile(projectFilePath)

            # For now, we assume that any imported projects are pixel classification workflow projects.
            import ilastik.workflows
            default_workflow = ilastik.workflows.pixelClassification.PixelClassificationWorkflow

            # Create the project manager.
            # Here, we provide an additional parameter: the path of the project we're importing from. 
            self.projectManager = ProjectManager( self,
                                                  default_workflow,
                                                  importFromPath=oldProjectFilePath,
                                                  headless=True,
                                                  workflow_cmdline_args=self._workflow_cmdline_args,
                                                  project_creation_args=self._workflow_cmdline_args )

            self.projectManager._importProject(oldProjectFilePath, hdf5File, projectFilePath,readOnly = False)

class HeadlessShell(object):
    """
    For now, this class is just a stand-in for the GUI shell (used when running from the command line).
    """

    def __init__(self):
        self._applets = []
        self.projectManager = ProjectManager()
        self.currentImageIndex = -1

    def addApplet(self, aplt):
        self._applets.append(aplt)
        self.projectManager.addApplet(aplt)

    def changeCurrentInputImageIndex(self, newImageIndex):
        if newImageIndex != self.currentImageIndex:
            # Alert each central widget and viewer control widget that the image selection changed
            for i in range(len(self._applets)):
                self._applets[i].gui.setImageIndex(newImageIndex)

            self.currentImageIndex = newImageIndex

    def openProjectPath(self, projectFilePath):
        try:
            hdf5File, readOnly = self.projectManager.openProjectFile(projectFilePath)
            self.projectManager.loadProject(hdf5File, projectFilePath, readOnly)
        except ProjectManager.ProjectVersionError:
            # Couldn't open project.  Try importing it.
            oldProjectFilePath = projectFilePath
            name, ext = os.path.splitext(oldProjectFilePath)
            projectFilePath = name + "_imported" + ext

            logger.info("Importing project as '" + projectFilePath + "'")
            projectFile = self.projectManager.createBlankProjectFile(projectFilePath)
            self.projectManager.importProject(oldProjectFilePath, projectFile, projectFilePath)

class HeadlessShell(object):
    """
    For now, this class is just a stand-in for the GUI shell (used when running from the command line).
    """
    
    def __init__(self, workflowClass):
        self._workflowClass = workflowClass
        self.projectManager = None

    @property
    def workflow(self):
        return self.projectManager.workflow

    def createBlankProjectFile(self, projectFilePath):
        hdf5File = ProjectManager.createBlankProjectFile(projectFilePath)
        readOnly = False
        self.projectManager = ProjectManager( self._workflowClass,  headless=True )
        self.projectManager._loadProject(hdf5File, projectFilePath, readOnly)
        
    def openProjectPath(self, projectFilePath):
        try:
            # Open the project file
            hdf5File, readOnly = ProjectManager.openProjectFile(projectFilePath)
            
            # Create our project manager
            # This instantiates the workflow and applies all settings from the project.
            self.projectManager = ProjectManager( self._workflowClass, headless=True )
            self.projectManager._loadProject(hdf5File, projectFilePath, readOnly = False)
            
        except ProjectManager.ProjectVersionError:
            # Couldn't open project.  Try importing it.
            oldProjectFilePath = projectFilePath
            name, ext = os.path.splitext(oldProjectFilePath)
    
            # Create a brand new project file.
            projectFilePath = name + "_imported" + ext
            logger.info("Importing project as '" + projectFilePath + "'")
            hdf5File = ProjectManager.createBlankProjectFile(projectFilePath)

            # Create the project manager.
            # Here, we provide an additional parameter: the path of the project we're importing from. 
            self.projectManager = ProjectManager( self._workflowClass, importFromPath=oldProjectFilePath, headless=True )
            self.projectManager._importProject(importFromPath, hdf5File, projectFilePath,readOnly = False)

    def closeCurrentProject(self):
        self.projectManager._closeCurrentProject()
        self.projectManager.cleanUp()
        self.projectManager = None

    def create_new_tst_project(cls):
        # Instantiate 'shell'
        shell = HeadlessShell(  )
        
        # Create a blank project file and load it.
        newProjectFilePath = cls.PROJECT_FILE
        newProjectFile = ProjectManager.createBlankProjectFile(newProjectFilePath, PixelClassificationWorkflow, [])
        newProjectFile.close()
        shell.openProjectFile(newProjectFilePath)
        workflow = shell.workflow
        
        # Add a file
        from ilastik.applets.dataSelection.opDataSelection import DatasetInfo
        info = DatasetInfo()
        info.filePath = cls.SAMPLE_DATA
        opDataSelection = workflow.dataSelectionApplet.topLevelOperator
        opDataSelection.DatasetGroup.resize(1)
        opDataSelection.DatasetGroup[0][0].setValue(info)
        
        
        # Set some features
        ScalesList = [0.3, 0.7, 1, 1.6, 3.5, 5.0, 10.0]    
        FeatureIds = [ 'GaussianSmoothing',
                       'LaplacianOfGaussian',
                       'StructureTensorEigenvalues',
                       'HessianOfGaussianEigenvalues',
                       'GaussianGradientMagnitude',
                       'DifferenceOfGaussians' ]

        opFeatures = workflow.featureSelectionApplet.topLevelOperator
        opFeatures.Scales.setValue( ScalesList )
        opFeatures.FeatureIds.setValue( FeatureIds )

        #                    sigma:   0.3    0.7    1.0    1.6    3.5    5.0   10.0
        selections = numpy.array( [[True, False, False, False, False, False, False],
                                   [True, False, False, False, False, False, False],
                                   [True, False, False, False, False, False, False],
                                   [False, False, False, False, False, False, False],
                                   [False, False, False, False, False, False, False],
                                   [False, False, False, False, False, False, False]] )
        opFeatures.SelectionMatrix.setValue(selections)
    
        # Add some labels directly to the operator
        opPixelClass = workflow.pcApplet.topLevelOperator

        opPixelClass.LabelNames.setValue(['Label 1', 'Label 2'])

        slicing1 = sl[0:1,0:10,0:10,0:1,0:1]
        labels1 = 1 * numpy.ones(slicing2shape(slicing1), dtype=numpy.uint8)
        opPixelClass.LabelInputs[0][slicing1] = labels1

        slicing2 = sl[0:1,0:10,10:20,0:1,0:1]
        labels2 = 2 * numpy.ones(slicing2shape(slicing2), dtype=numpy.uint8)
        opPixelClass.LabelInputs[0][slicing2] = labels2

        # Save and close
        shell.projectManager.saveProject()
        del shell

    def __init__( self, workflow = [], parent = None, flags = QtCore.Qt.WindowFlags(0), sideSplitterSizePolicy=SideSplitterSizePolicy.Manual ):
        QMainWindow.__init__(self, parent = parent, flags = flags )
        # Register for thunk events (easy UI calls from non-GUI threads)
        self.thunkEventHandler = ThunkEventHandler(self)

        self._sideSplitterSizePolicy = sideSplitterSizePolicy

        self.projectManager = ProjectManager()
        
        import inspect, os
        ilastikShellFilePath = os.path.dirname(inspect.getfile(inspect.currentframe()))
        uic.loadUi( ilastikShellFilePath + "/ui/ilastikShell.ui", self )
        self._applets = []
        self.appletBarMapping = {}

        self.setAttribute(Qt.WA_AlwaysShowToolTips)
        
        if 'Ubuntu' in platform.platform():
            # Native menus are prettier, but aren't working on Ubuntu at this time (Qt 4.7, Ubuntu 11)
            self.menuBar().setNativeMenuBar(False)

        (self._projectMenu, self._shellActions) = self._createProjectMenu()
        self._settingsMenu = self._createSettingsMenu()
        self.menuBar().addMenu( self._projectMenu )
        self.menuBar().addMenu( self._settingsMenu )

        self.updateShellProjectDisplay()
        
        self.progressDisplayManager = ProgressDisplayManager(self.statusBar)

        self.appletBar.expanded.connect(self.handleAppleBarItemExpanded)
        self.appletBar.clicked.connect(self.handleAppletBarClick)
        self.appletBar.setVerticalScrollMode( QAbstractItemView.ScrollPerPixel )
        
        # By default, make the splitter control expose a reasonable width of the applet bar
        self.mainSplitter.setSizes([300,1])
        
        self.currentAppletIndex = 0

        self.currentImageIndex = -1
        self.populatingImageSelectionCombo = False
        self.imageSelectionCombo.currentIndexChanged.connect( self.changeCurrentInputImageIndex )
        
        self.enableWorkflow = False # Global mask applied to all applets
        self._controlCmds = []      # Track the control commands that have been issued by each applet so they can be popped.
        self._disableCounts = []    # Controls for each applet can be disabled by his peers.
                                    # No applet can be enabled unless his disableCount == 0

        # Add all the applets from the workflow
        for app in workflow.applets:
            self.addApplet(app)
        self.workflow = workflow

    def openProjectPath(self, projectFilePath):
        try:
            # Open the project file
            hdf5File, readOnly = ProjectManager.openProjectFile(projectFilePath)
            
            # Create our project manager
            # This instantiates the workflow and applies all settings from the project.
            self.projectManager = ProjectManager( self._workflowClass, hdf5File, projectFilePath, readOnly, headless=True )

        except ProjectManager.ProjectVersionError:
            # Couldn't open project.  Try importing it.
            oldProjectFilePath = projectFilePath
            name, ext = os.path.splitext(oldProjectFilePath)
    
            # Create a brand new project file.
            projectFilePath = name + "_imported" + ext
            logger.info("Importing project as '" + projectFilePath + "'")
            hdf5File = ProjectManager.createBlankProjectFile(projectFilePath)

            # Create the project manager.
            # Here, we provide an additional parameter: the path of the project we're importing from. 
            self.projectManager = ProjectManager( self._workflowClass, hdf5File, projectFilePath, readOnly=False, importFromPath=oldProjectFilePath, headless=True )

    def downloadProjectFromDvid(cls, dvid_key_url):
        # By convention, command-line users specify the location of the project 
        # keyvalue data using the same format that the DVID API itself uses.
        url_format = "^protocol://hostname/api/node/uuid/kv_instance_name(\\?/key/keyname)?"
        for field in ['protocol', 'hostname', 'uuid', 'kv_instance_name', 'keyname']:
            url_format = url_format.replace( field, '(?P<' + field + '>[^?]+)' )

        match = re.match( url_format, dvid_key_url )
        if not match:
            # DVID is the only url-based format we support right now.
            # So if it looks like the user gave a URL that isn't a valid DVID node, then error.
            raise RuntimeError("Invalid URL format for DVID key-value data: {}".format(projectFilePath))

        fields = match.groupdict()            
        projectFilePath = ProjectManager.downloadProjectFromDvid( fields['hostname'],
                                                                  fields['uuid'],
                                                                  fields['kv_instance_name'],
                                                                  fields['keyname'] )
        return projectFilePath

 def create_project_file(self, workflow_class, project_file_name):
     newProjectFile = ProjectManager.createBlankProjectFile(project_file_name, workflow_class, [])
     newProjectFile.close()

class IlastikShell( QMainWindow ):
    """
    The GUI's main window.  Simply a standard 'container' GUI for one or more applets.
    """


    def __init__( self, workflow = [], parent = None, flags = QtCore.Qt.WindowFlags(0), sideSplitterSizePolicy=SideSplitterSizePolicy.Manual ):
        QMainWindow.__init__(self, parent = parent, flags = flags )
        # Register for thunk events (easy UI calls from non-GUI threads)
        self.thunkEventHandler = ThunkEventHandler(self)

        self._sideSplitterSizePolicy = sideSplitterSizePolicy

        self.projectManager = ProjectManager()
        
        import inspect, os
        ilastikShellFilePath = os.path.dirname(inspect.getfile(inspect.currentframe()))
        uic.loadUi( ilastikShellFilePath + "/ui/ilastikShell.ui", self )
        self._applets = []
        self.appletBarMapping = {}

        self.setAttribute(Qt.WA_AlwaysShowToolTips)
        
        if 'Ubuntu' in platform.platform():
            # Native menus are prettier, but aren't working on Ubuntu at this time (Qt 4.7, Ubuntu 11)
            self.menuBar().setNativeMenuBar(False)

        (self._projectMenu, self._shellActions) = self._createProjectMenu()
        self._settingsMenu = self._createSettingsMenu()
        self.menuBar().addMenu( self._projectMenu )
        self.menuBar().addMenu( self._settingsMenu )

        self.updateShellProjectDisplay()
        
        self.progressDisplayManager = ProgressDisplayManager(self.statusBar)

        for applet in workflow:
            self.addApplet(applet)

        self.appletBar.expanded.connect(self.handleAppleBarItemExpanded)
        self.appletBar.clicked.connect(self.handleAppletBarClick)
        self.appletBar.setVerticalScrollMode( QAbstractItemView.ScrollPerPixel )
        
        # By default, make the splitter control expose a reasonable width of the applet bar
        self.mainSplitter.setSizes([300,1])
        
        self.currentAppletIndex = 0

        self.currentImageIndex = -1
        self.populatingImageSelectionCombo = False
        self.imageSelectionCombo.currentIndexChanged.connect( self.changeCurrentInputImageIndex )
        
        self.enableWorkflow = False # Global mask applied to all applets
        self._controlCmds = []      # Track the control commands that have been issued by each applet so they can be popped.
        self._disableCounts = []    # Controls for each applet can be disabled by his peers.
                                    # No applet can be enabled unless his disableCount == 0

        
    def _createProjectMenu(self):
        # Create a menu for "General" (non-applet) actions
        menu = QMenu("&Project", self)

        shellActions = ShellActions()

        # Menu item: New Project
        shellActions.newProjectAction = menu.addAction("&New Project...")
        shellActions.newProjectAction.setShortcuts( QKeySequence.New )
        shellActions.newProjectAction.triggered.connect(self.onNewProjectActionTriggered)

        # Menu item: Open Project 
        shellActions.openProjectAction = menu.addAction("&Open Project...")
        shellActions.openProjectAction.setShortcuts( QKeySequence.Open )
        shellActions.openProjectAction.triggered.connect(self.onOpenProjectActionTriggered)

        # Menu item: Save Project
        shellActions.saveProjectAction = menu.addAction("&Save Project")
        shellActions.saveProjectAction.setShortcuts( QKeySequence.Save )
        shellActions.saveProjectAction.triggered.connect(self.onSaveProjectActionTriggered)

        # Menu item: Save Project As
        shellActions.saveProjectAsAction = menu.addAction("&Save Project As...")
        shellActions.saveProjectAsAction.setShortcuts( QKeySequence.SaveAs )
        shellActions.saveProjectAsAction.triggered.connect(self.onSaveProjectAsActionTriggered)

        # Menu item: Save Project Snapshot
        shellActions.saveProjectSnapshotAction = menu.addAction("&Take Snapshot...")
        shellActions.saveProjectSnapshotAction.triggered.connect(self.onSaveProjectSnapshotActionTriggered)

        # Menu item: Import Project
        shellActions.importProjectAction = menu.addAction("&Import Project...")
        shellActions.importProjectAction.triggered.connect(self.onImportProjectActionTriggered)

        # Menu item: Quit
        shellActions.quitAction = menu.addAction("&Quit")
        shellActions.quitAction.setShortcuts( QKeySequence.Quit )
        shellActions.quitAction.triggered.connect(self.onQuitActionTriggered)
        shellActions.quitAction.setShortcut( QKeySequence.Quit )
        
        return (menu, shellActions)
    
#.........這裏部分代碼省略.........

class HeadlessShell(object):
    """
    For now, this class is just a stand-in for the GUI shell (used when running from the command line).
    """

    def __init__(self, workflow_cmdline_args=None):
        self._workflow_cmdline_args = workflow_cmdline_args or []
        self.projectManager = None

    @property
    def workflow(self):
        return self.projectManager.workflow

    def createAndLoadNewProject(self, newProjectFilePath, workflow_class):
        hdf5File = ProjectManager.createBlankProjectFile(newProjectFilePath)
        readOnly = False
        self.projectManager = ProjectManager(
            self, workflow_class, headless=True, workflow_cmdline_args=self._workflow_cmdline_args
        )
        self.projectManager._loadProject(hdf5File, newProjectFilePath, readOnly)

    def openProjectFile(self, projectFilePath):
        # Make sure all workflow sub-classes have been loaded,
        #  so we can detect the workflow type in the project.
        import ilastik.workflows

        try:
            # Open the project file
            hdf5File, workflow_class, _ = ProjectManager.openProjectFile(projectFilePath)

            if workflow_class is None:
                # If the project file has no known workflow, we assume pixel classification
                import ilastik.workflows

                workflow_class = ilastik.workflows.pixelClassification.PixelClassificationWorkflow
                import warnings

                warnings.warn(
                    "Your project file ({}) does not specify a workflow type.  "
                    "Assuming Pixel Classification".format(projectFilePath)
                )

            # Create our project manager
            # This instantiates the workflow and applies all settings from the project.
            self.projectManager = ProjectManager(
                self, workflow_class, headless=True, workflow_cmdline_args=self._workflow_cmdline_args
            )
            self.projectManager._loadProject(hdf5File, projectFilePath, readOnly=False)

        except ProjectManager.ProjectVersionError:
            # Couldn't open project.  Try importing it.
            oldProjectFilePath = projectFilePath
            name, ext = os.path.splitext(oldProjectFilePath)

            # Create a brand new project file.
            projectFilePath = name + "_imported" + ext
            logger.info("Importing project as '" + projectFilePath + "'")
            hdf5File = ProjectManager.createBlankProjectFile(projectFilePath)

            # For now, we assume that any imported projects are pixel classification workflow projects.
            import ilastik.workflows

            default_workflow = ilastik.workflows.pixelClassification.PixelClassificationWorkflow

            # Create the project manager.
            # Here, we provide an additional parameter: the path of the project we're importing from.
            self.projectManager = ProjectManager(
                self, default_workflow, importFromPath=oldProjectFilePath, headless=True
            )
            self.projectManager._importProject(oldProjectFilePath, hdf5File, projectFilePath, readOnly=False)

    def setAppletEnabled(self, applet, enabled):
        """
        Provided here to satisfy the ShellABC.
        For now, HeadlessShell has no concept of "enabled" or "disabled" applets.
        """
        pass

    def enableProjectChanges(self, enabled):
        """
        Provided here to satisfy the ShellABC.
        For now, HeadlessShell has no mechanism for closing projects.
        """
        pass

    def closeCurrentProject(self):
        self.projectManager._closeCurrentProject()
        self.projectManager.cleanUp()
        self.projectManager = None

 def createBlankProjectFile(self, projectFilePath):
     hdf5File = ProjectManager.createBlankProjectFile(projectFilePath)
     readOnly = False
     self.projectManager = ProjectManager( self._workflowClass,  headless=True )
     self.projectManager._loadProject(hdf5File, projectFilePath, readOnly)

class HeadlessShell(object):
    """
    For now, this class is just a stand-in for the GUI shell (used when running from the command line).
    """
    
    def __init__(self, workflow_cmdline_args=None):
        self._workflow_cmdline_args = workflow_cmdline_args or []
        self.projectManager = None

    @property
    def workflow(self):
        return self.projectManager.workflow

    @property
    def currentImageIndex(self):
        return -1

    def createAndLoadNewProject(self, newProjectFilePath, workflow_class):
        hdf5File = ProjectManager.createBlankProjectFile(newProjectFilePath)
        readOnly = False
        self.projectManager = ProjectManager( self,
                                              workflow_class,
                                              headless=True,
                                              workflow_cmdline_args=self._workflow_cmdline_args  )
        self.projectManager._loadProject(hdf5File, newProjectFilePath, readOnly)
        self.projectManager.saveProject()

    @classmethod
    def downloadProjectFromDvid(cls, dvid_key_url):
        dvid_key_url = str(dvid_key_url)
        
        # By convention, command-line users specify the location of the project 
        # keyvalue data using the same format that the DVID API itself uses.
        url_format = "^protocol://hostname/api/node/uuid/kv_instance_name(/key/keyname)?"
        for field in ['protocol', 'hostname', 'uuid', 'kv_instance_name', 'keyname']:
            url_format = url_format.replace( field, '(?P<' + field + '>[^?/]+)' )

        match = re.match( url_format, dvid_key_url )
        if not match:
            # DVID is the only url-based format we support right now.
            # So if it looks like the user gave a URL that isn't a valid DVID node, then error.
            raise RuntimeError("Invalid URL format for DVID key-value data: {}".format(projectFilePath))

        fields = match.groupdict()            
        projectFilePath = ProjectManager.downloadProjectFromDvid( fields['hostname'],
                                                                  fields['uuid'],
                                                                  fields['kv_instance_name'],
                                                                  fields['keyname'] )
        return projectFilePath
        
    def openProjectFile(self, projectFilePath, force_readonly=False):
        # If the user gave a URL to a DVID key, then download the project file from dvid first.
        # (So far, DVID is the only type of URL access we support for project files.)
        if isUrl(projectFilePath):
            projectFilePath = HeadlessShell.downloadProjectFromDvid(projectFilePath)

        # Make sure all workflow sub-classes have been loaded,
        #  so we can detect the workflow type in the project.
        import ilastik.workflows
        try:
            # Open the project file
            hdf5File, workflow_class, readOnly = ProjectManager.openProjectFile(projectFilePath, force_readonly)

            # If there are any "creation-time" command-line args saved to the project file,
            #  load them so that the workflow can be instantiated with the same settings 
            #  that were used when the project was first created. 
            project_creation_args = []
            if "workflow_cmdline_args" in hdf5File.keys():
                if len(hdf5File["workflow_cmdline_args"]) > 0:
                    project_creation_args = map(str, hdf5File["workflow_cmdline_args"][...])

            if workflow_class is None:
                # If the project file has no known workflow, we assume pixel classification
                import ilastik.workflows
                workflow_class = ilastik.workflows.pixelClassification.PixelClassificationWorkflow
                import warnings
                warnings.warn( "Your project file ({}) does not specify a workflow type.  "
                               "Assuming Pixel Classification".format( projectFilePath ) )            
            
            # Create our project manager
            # This instantiates the workflow and applies all settings from the project.
            self.projectManager = ProjectManager( self,
                                                  workflow_class,
                                                  headless=True,
                                                  workflow_cmdline_args=self._workflow_cmdline_args,
                                                  project_creation_args=project_creation_args )
            self.projectManager._loadProject(hdf5File, projectFilePath, readOnly)

        except ProjectManager.FileMissingError:
            logger.error("Couldn't find project file: {}".format( projectFilePath ))
            raise            
        except ProjectManager.ProjectVersionError:
            # Couldn't open project.  Try importing it.
            oldProjectFilePath = projectFilePath
            name, ext = os.path.splitext(oldProjectFilePath)
    
            # Create a brand new project file.
            projectFilePath = name + "_imported" + ext
            logger.info("Importing project as '" + projectFilePath + "'")
            hdf5File = ProjectManager.createBlankProjectFile(projectFilePath)
#.........這裏部分代碼省略.........

class HeadlessShell(object):
    """
    For now, this class is just a stand-in for the GUI shell (used when running from the command line).
    """
    
    def __init__(self, workflow_cmdline_args=None):
        self._workflow_cmdline_args = workflow_cmdline_args or []
        self.projectManager = None

    @property
    def workflow(self):
        return self.projectManager.workflow

    def createAndLoadNewProject(self, newProjectFilePath, workflow_class):
        hdf5File = ProjectManager.createBlankProjectFile(newProjectFilePath)
        readOnly = False
        self.projectManager = ProjectManager( workflow_class,
                                              headless=True,
                                              workflow_cmdline_args=self._workflow_cmdline_args  )
        self.projectManager._loadProject(hdf5File, newProjectFilePath, readOnly)
        
    def openProjectFile(self, projectFilePath):
        # Make sure all workflow sub-classes have been loaded,
        #  so we can detect the workflow type in the project.
        import ilastik.workflows
        try:
            # Open the project file
            hdf5File, workflow_class, _ = ProjectManager.openProjectFile(projectFilePath)
            
            # Create our project manager
            # This instantiates the workflow and applies all settings from the project.
            self.projectManager = ProjectManager( workflow_class,
                                                  headless=True,
                                                  workflow_cmdline_args=self._workflow_cmdline_args )
            self.projectManager._loadProject(hdf5File, projectFilePath, readOnly = False)
            
        except ProjectManager.ProjectVersionError:
            # Couldn't open project.  Try importing it.
            oldProjectFilePath = projectFilePath
            name, ext = os.path.splitext(oldProjectFilePath)
    
            # Create a brand new project file.
            projectFilePath = name + "_imported" + ext
            logger.info("Importing project as '" + projectFilePath + "'")
            hdf5File = ProjectManager.createBlankProjectFile(projectFilePath)

            # For now, we assume that any imported projects are pixel classification workflow projects.
            import ilastik.workflows
            default_workflow = ilastik.workflows.pixelClassification.PixelClassificationWorkflow

            # Create the project manager.
            # Here, we provide an additional parameter: the path of the project we're importing from. 
            self.projectManager = ProjectManager( default_workflow,
                                                  importFromPath=oldProjectFilePath,
                                                  headless=True )
            self.projectManager._importProject(oldProjectFilePath, hdf5File, projectFilePath,readOnly = False)

    def closeCurrentProject(self):
        self.projectManager._closeCurrentProject()
        self.projectManager.cleanUp()
        self.projectManager = None