gate.gui.docview
Class AbstractDocumentView

java.lang.Object
  gate.util.AbstractFeatureBearer
      gate.creole.AbstractResource
          gate.gui.docview.AbstractDocumentView

All Implemented Interfaces:

ActionsPublisher, DocumentView, Resource, FeatureBearer, NameBearer, VisualResource, Serializable

Direct Known Subclasses:

AnnotationListView, AnnotationSetsView, CorefEditor, TextualDocumentView

public abstract class AbstractDocumentView
extends AbstractResource
implements DocumentView

A convenience implementation of DocumentView that can be extended by implementers of document views. An implementation of a document view that extends this class will need to provide implementations for the three abstract methods: initGUI(), registerHooks() and unregisterHooks().

See Also:

Serialized Form

Field Summary

protected boolean	active Stores the active state of this view.
protected Document	document The document this view displays.
protected boolean	guiInitialised Has the UI been initialised yet?
protected Handle	handle Stores the handle of this view.
protected DocumentEditor	owner The DocumentEditor this view is part of.

Fields inherited from class gate.creole.AbstractResource

name

Fields inherited from class gate.util.AbstractFeatureBearer

features

Fields inherited from interface gate.gui.docview.DocumentView

CENTRAL, HORIZONTAL, VERTICAL

Constructor Summary

AbstractDocumentView()

Method Summary

List	getActions() Returns a list of Action objects.
Document	getDocument() Gets the document this view displays.
protected abstract void	initGUI() Implementers should override this method and use it for populating the GUI.
boolean	isActive() Returns the active state of this view.
protected abstract void	registerHooks() This method will be called whenever the view becomes active.
void	setActive(boolean active) Notifies this view that it has become active or inactive.
void	setHandle(Handle handle) Used by the main GUI to tell this VR what handle created it.
void	setOwner(DocumentEditor editor) Stores the owner of this view into the owner field.
void	setTarget(Object target) Stores the target (which should always be a Document) into the document field.
protected abstract void	unregisterHooks() This method will be called whenever this view becomes inactive.

Methods inherited from class gate.creole.AbstractResource

checkParameterValues, cleanup, getBeanInfo, getName, getParameterValue, getParameterValue, init, removeResourceListeners, setName, setParameterValue, setParameterValue, setParameterValues, setParameterValues, setResourceListeners

Methods inherited from class gate.util.AbstractFeatureBearer

getFeatures, setFeatures

Methods inherited from class java.lang.Object

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

Methods inherited from interface gate.gui.docview.DocumentView

getGUI, getType

Methods inherited from interface gate.Resource

cleanup, getParameterValue, init, setParameterValue, setParameterValues

Methods inherited from interface gate.util.FeatureBearer

getFeatures, setFeatures

Methods inherited from interface gate.util.NameBearer

getName, setName

Field Detail

active

protected boolean active

Stores the active state of this view.

handle

protected Handle handle

Stores the handle of this view.

guiInitialised

protected boolean guiInitialised

Has the UI been initialised yet?

document

protected Document document

The document this view displays.

owner

protected DocumentEditor owner

The DocumentEditor this view is part of.

Constructor Detail

AbstractDocumentView

public AbstractDocumentView()

Method Detail

setActive

public void setActive(boolean active)

Notifies this view that it has become active or inactive. This method will initialise the GUI the first time the view becomes active.

Specified by:

setActive in interface DocumentView

Parameters:

active - a boolean value.

isActive

public boolean isActive()

Returns the active state of this view.

Specified by:

isActive in interface DocumentView

Returns:

a boolean value

getActions

public List getActions()

Description copied from interface: ActionsPublisher

Returns a list of Action objects. This method will be called everytime a menu for this resource needs to be built, thus allowing for dynamic updates to the list of actions. A null value in this list will cause a separator to be created.

Specified by:

getActions in interface ActionsPublisher

Returns:

a List of Actions.

setHandle

public void setHandle(Handle handle)

Description copied from interface: VisualResource

Used by the main GUI to tell this VR what handle created it. The VRs can use this information e.g. to add items to the popup for the resource.

Specified by:

setHandle in interface VisualResource

setTarget

public void setTarget(Object target)

Stores the target (which should always be a Document) into the document field.

Specified by:

setTarget in interface VisualResource

Parameters:

target - the object (be it a Resource, DataStore or whatever) this viewer has to display

getDocument

public Document getDocument()

Gets the document this view displays.

Returns:

a Document

setOwner

public void setOwner(DocumentEditor editor)

Stores the owner of this view into the owner field. The owner is the DocumentEditor this view is part of.

Specified by:

setOwner in interface DocumentView

Parameters:

editor - the DocumentEditor that contains this view.

initGUI

protected abstract void initGUI()

Implementers should override this method and use it for populating the GUI.

registerHooks

protected abstract void registerHooks()

This method will be called whenever the view becomes active. Implementers should use this to add hooks (such as mouse listeners) to the other views as required by their functionality.

unregisterHooks

protected abstract void unregisterHooks()

This method will be called whenever this view becomes inactive. Implementers should use it to unregister whatever hooks they registered in registerHooks().