ptolemy.actor.gui.properties

Class GUIAction

java.lang.Object

ptolemy.kernel.util.NamedObj

ptolemy.kernel.util.Attribute

ptolemy.actor.gui.properties.GUIAction

All Implemented Interfaces:

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

Direct Known Subclasses:

GTGUIAction

public class GUIAction
extends Attribute

A helper class to handle actions in GUI properties.

Since:

Ptolemy II 8.0

Version:

$Id$

Author:

Thomas Huining Feng

Pt.AcceptedRating:

Red (tfeng)

Pt.ProposedRating:

Red (tfeng)

Nested Class Summary

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

NamedObj.ContainedObjectsIterator

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.String	_momlSource The input source that was specified the last time the configure method was called.
protected java.lang.String	_momlText The text string that represents the current configuration of this object.
protected NamedObj	_parsedObject The object obtained by parsing the moml text, or null.
protected MoMLParser	_parser The parser used to parse the moml text.

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 and Description
GUIAction(NamedObj container, java.lang.String name) Construct an item with the given name contained by the specified entity.

Method Summary

Modifier and Type	Method and Description
protected void	_parseSource() Parse the configuration source if it has not been parsed, and store the result in protected field _parsedObject.
void	configure(java.net.URL base, java.lang.String source, java.lang.String text) Configure the object with data from the specified input source (a URL) and/or textual data.
java.lang.String	getConfigureSource() Return the input source that was specified the last time the configure method was called.
java.lang.String	getConfigureText() Return the text string that represents the current configuration of this object.
javax.swing.JFrame	getFrame() Get the frame in which this item is selected.
NamedObj	getModel() Get the model contained in the current frame.
void	perform(boolean parse) React to this item being selected.

Methods inherited from class ptolemy.kernel.util.Attribute

_checkContainer, _getContainedObject, _propagateExistence, clone, getContainer, moveDown, moveToFirst, moveToIndex, moveToLast, 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

Field Detail

_momlSource

protected java.lang.String _momlSource

The input source that was specified the last time the configure method was called.

_momlText

protected java.lang.String _momlText

The text string that represents the current configuration of this object.

_parsedObject

protected NamedObj _parsedObject

The object obtained by parsing the moml text, or null.

_parser

protected MoMLParser _parser

The parser used to parse the moml text.

Constructor Detail

GUIAction

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

Construct an item with the given name contained by the specified entity. 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

configure

public void configure(java.net.URL base,
                      java.lang.String source,
                      java.lang.String text)
               throws java.lang.Exception

Configure the object with data from the specified input source (a URL) and/or textual data. The object should interpret the source first, if it is specified, followed by the literal text, if that is specified. The new configuration should usually override any old configuration wherever possible, in order to ensure that the current state can be successfully retrieved.

This method is defined to throw a very general exception to allow classes that implement the interface to use whatever exceptions are appropriate.

Parameters:

base - The base relative to which references within the input are found, or null if this is not known, or there is none.

source - The input source, which specifies a URL, or null if none.

text - Configuration information given as text, or null if none.

Throws:

java.lang.Exception - If something goes wrong.

getConfigureSource

public java.lang.String getConfigureSource()

Return the input source that was specified the last time the configure method was called.

Returns:

The string representation of the input URL, or null if the no source has been used to configure this object, or null if no external source need be used to configure this object.

getConfigureText

public java.lang.String getConfigureText()

Return the text string that represents the current configuration of this object. Note that any configuration that was previously specified using the source attribute need not be represented here as well.

Returns:

A configuration string, or null if no configuration has been used to configure this object, or null if no configuration string need be used to configure this object.

getFrame

public javax.swing.JFrame getFrame()

Get the frame in which this item is selected.

Returns:

The frame.

getModel

public NamedObj getModel()

Get the model contained in the current frame.

Returns:

The model.

perform

public void perform(boolean parse)
             throws java.lang.Exception

React to this item being selected. In this base class, if a source file is specified in the configuration of this item, e.g.:

    <configure source="some_file.xml">
    </configure>
  

then the source is read and its contents are used as the moml text. The moml text can also be given directly:

    <configure>
      <entity name="C" class="ptolemy.actor.lib.Const">
      </entity>
    </configure>
  

Depending on whether the parse parameter is true or false, the moml text may be parsed first or not. If it is parsed, the returned NamedObj is used to generate a new moml string to be applied to the model in the current tableau (the nearest tableau that contains this GUI property). If it is not parsed, then the moml text is directly applied to the model.

Parameters:

parse - Whether the configure text should be parsed before applying to the current model.

Throws:

java.lang.Exception - If error occurs in performing the action.

_parseSource

protected void _parseSource()
                     throws java.lang.Exception

Parse the configuration source if it has not been parsed, and store the result in protected field _parsedObject.

Throws:

java.lang.Exception - If it occurs in the parsing.