Package ptolemy.vergil.kernel.attributes

Class VisibleAttribute

java.lang.Object

ptolemy.kernel.util.NamedObj

ptolemy.kernel.util.Attribute

ptolemy.vergil.kernel.attributes.VisibleAttribute

All Implemented Interfaces:

java.lang.Cloneable, Changeable, Debuggable, DebugListener, Derivable, ModelErrorHandler, MoMLExportable, Moveable, Nameable

Direct Known Subclasses:

AbstractTextAttribute, DocumentationAttribute, ImageAttribute, PDFAttribute, ShapeAttribute

public abstract class VisibleAttribute
extends Attribute

Base class for attributes that are shown in vergil with their own icons. This base class contains an attribute that results in its name being hidden, and also handles commands to send it to the back or the front.

Since:

Ptolemy II 5.2

Version:

$Id$

Author:

Edward A. Lee

Pt.AcceptedRating:

Red (cxh)

Pt.ProposedRating:

Yellow (eal)

Nested Class Summary

Nested classes/interfaces inherited from class ptolemy.kernel.util.NamedObj

NamedObj.ContainedObjectsIterator

Field Summary

Fields inherited from class ptolemy.kernel.util.NamedObj

_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _deferChangeRequests, _elementName, _isPersistent, _verbose, _workspace, ATTRIBUTES, CLASSNAME, COMPLETE, CONTENTS, DEEP, FULLNAME, LINKS

Constructor Summary

Constructors

Constructor	Description
VisibleAttribute(NamedObj container, java.lang.String name)	Construct an attribute with the given name contained by the specified container.

Method Summary

Modifier and Type	Method	Description
int	moveToFirst()	Move this object to the first position in the list of attributes of the container.
int	moveToLast()	Move this object to the last position in the list of attributes of the container.

Methods inherited from class ptolemy.kernel.util.Attribute

_checkContainer, _getContainedObject, _propagateExistence, clone, getContainer, moveDown, moveToIndex, moveUp, setContainer, setName, updateContent

Methods inherited from class ptolemy.kernel.util.NamedObj

_addAttribute, _adjustOverride, _attachText, _cloneFixAttributeFields, _containedDecorators, _copyChangeRequestList, _debug, _debug, _debug, _debug, _debug, _description, _executeChangeRequests, _exportMoMLContents, _getIndentPrefix, _isMoMLSuppressed, _markContentsDerived, _notifyHierarchyListenersAfterChange, _notifyHierarchyListenersBeforeChange, _propagateValue, _removeAttribute, _splitName, _stripNumericSuffix, _validateSettables, addChangeListener, addDebugListener, addHierarchyListener, attributeChanged, attributeDeleted, attributeList, attributeList, attributeTypeChanged, clone, containedObjectsIterator, decorators, deepContains, depthInHierarchy, description, description, event, executeChangeRequests, exportMoML, exportMoML, exportMoML, exportMoML, exportMoML, exportMoMLPlain, getAttribute, getAttribute, getAttributes, getChangeListeners, getClassName, getDecoratorAttribute, getDecoratorAttributes, getDerivedLevel, getDerivedList, getDisplayName, getElementName, getFullName, getModelErrorHandler, getName, getName, getPrototypeList, getSource, handleModelError, isDeferringChangeRequests, isOverridden, isPersistent, lazyContainedObjectsIterator, message, notifyOfNameChange, propagateExistence, propagateValue, propagateValues, removeAttribute, removeChangeListener, removeDebugListener, removeHierarchyListener, requestChange, setClassName, setDeferringChangeRequests, setDerivedLevel, setDisplayName, setModelErrorHandler, setPersistent, setSource, sortContainedObjects, toplevel, toString, uniqueName, validateSettables, workspace

Methods inherited from class java.lang.Object

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

Constructor Detail

VisibleAttribute

public VisibleAttribute(NamedObj container,
                        java.lang.String name)
                 throws IllegalActionException,
                        NameDuplicationException

Construct an attribute with the given name contained by the specified container. The container argument must not be null, or a NullPointerException will be thrown. This attribute will use the workspace of the container for synchronization and version counts. If the name argument is null, then the name is set to the empty string. Increment the version of the workspace.

Parameters:

container - The container.

name - The name of this attribute.

Throws:

IllegalActionException - If the attribute is not of an acceptable class for the container, or if the name contains a period.

NameDuplicationException - If the name coincides with an attribute already in the container.

Method Detail

moveToFirst

public int moveToFirst()
                throws IllegalActionException

Move this object to the first position in the list of attributes of the container. This overrides the base class to create an attribute named "_renderFirst" and to remove an attribute named "_renderLast", if it is present. This attribute is recognized by vergil, which then renders this attribute before entities, connections, and other attributes. This method gets write access on workspace and increments the version.

Specified by:

moveToFirst in interface Moveable

Overrides:

moveToFirst in class Attribute

Returns:

The index of the specified object prior to moving it, or -1 if it is not moved.

Throws:

IllegalActionException - If this object has no container.

moveToLast

public int moveToLast()
               throws IllegalActionException

Move this object to the last position in the list of attributes of the container. This overrides the base class to create an attribute named "_renderLast" and to remove an attribute named "_renderFirst" if it is present. This attribute is recognized by vergil, which then renders this attribute after entities, connections, and other attributes. This method gets write access on workspace and increments the version.

Specified by:

moveToLast in interface Moveable

Overrides:

moveToLast in class Attribute

Returns:

The index of the specified object prior to moving it, or -1 if it is not moved.

Throws:

IllegalActionException - If this object has no container.