ptolemy.vergil.basic

Class BasicGraphController

java.lang.Object

diva.graph.AbstractGraphController

ptolemy.vergil.basic.BasicGraphController

All Implemented Interfaces:

GraphController, DebugListener, ValueListener

Direct Known Subclasses:

EditIconGraphController, WithIconGraphController

public abstract class BasicGraphController
extends AbstractGraphController
implements DebugListener, ValueListener

A base class for Ptolemy II graph controllers. This extends the base class with an association with a configuration. The configuration is central to a Ptolemy GUI, and is used by derived classes to perform various functions such as opening models or their documentation. The class also provides a strategy pattern interface for a controller to add commands to the menu or toolbar of the frame it is controlling.

Since:

Ptolemy II 2.0

Version:

$Id$

Author:

Steve Neuendorffer and Edward A. Lee

Pt.AcceptedRating:

Red (johnr)

Pt.ProposedRating:

Red (eal)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	BasicGraphController.OpenBaseClassAction An action that will open the base class of a subclass or the class of an instance.
static class	BasicGraphController.SchematicContextMenuFactory Factory for context menus.
class	BasicGraphController.UnitSolverDialogAction An action that will create a UnitSolverDialog.

Field Summary

Fields

Modifier and Type	Field and Description
protected Figure	_animated Currently animated state, if any.
protected SelectionRenderer	_animationRenderer Renderer for animation.
protected static ConfigureAction	_configureAction The configure action.
protected static MenuActionFactory	_configureMenuFactory The submenu for configure actions.
protected MenuCreator	_menuCreator The interactor for creating context sensitive menus on the graph itself.
protected PtolemyMenuFactory	_menuFactory The factory belonging to the menu creator.
protected BasicGraphController.OpenBaseClassAction	_openBaseClassAction The open base class action.
protected BasicGraphController.UnitSolverDialogAction	_unitSolverDialogAction The UnitSolverDialog action.

Constructor Summary

Constructors

Constructor and Description
BasicGraphController() Create a new basic controller.

Method Summary

Modifier and Type	Method and Description
protected void	_addHotKeys(JGraph jgraph) Add hot keys to the actions in the given JGraph.
protected boolean	_areThereActiveErrorHighlights() Return true if there are active highlights.
protected void	_createControllers() Create the controllers for nodes in this graph.
protected ChangeRequest	_getClearAllErrorHighlightsChangeRequest() Return a change request that clears all the highlights.
protected void	_initializeInteraction(NamedObjController controller) Initialize interactions for the specified controller.
void	addToMenuAndToolbar(javax.swing.JMenu menu, javax.swing.JToolBar toolbar) Add commands to the specified menu and toolbar, as appropriate for this controller.
void	clearAllErrorHighlights() Request a change that clears all the error highlights.
void	clearAnimation() Clear any animation highlight that might currently be active.
void	event(DebugEvent event) React to an event.
long	getAnimationDelay() Get the time delay for animation.
Configuration	getConfiguration() Return the configuration that has been specified by setConfiguration(), or null if none.
MenuActionFactory	getConfigureMenuFactory() Return the configuration menu factory.
BasicGraphFrame	getFrame() Get the graph frame, or null if there is none.
NodeController	getNodeController(java.lang.Object object) Return the node controller appropriate for the given object.
void	highlightError(Nameable culprit) Highlight the specified object and all its containers to indicate that it is the source of an error.
protected void	initializeInteraction() Initialize all interaction on the graph pane.
void	message(java.lang.String message) React to a debug message.
void	setAnimationDelay(long time) Set the time delay for animation.
void	setConfiguration(Configuration configuration) Set the configuration.
void	setFigure(java.lang.Object semanticObject, Figure figure) Set the figure associated with the given semantic object, and if that semantic object is Settable, then set up a value listener so that if its value changes, then the valueChanged() method is invoked.
void	setFrame(BasicGraphFrame frame) Set the graph frame.
void	valueChanged(Settable settable) React to the fact that the specified Settable has changed.

Methods inherited from class diva.graph.AbstractGraphController

addEdge, addEdge, addGraphViewListener, addNode, addNode, addNode, addNode, clear, clearEdge, clearNode, dispatch, drawEdge, drawNode, drawNode, getEdgeController, getFigure, getGraphModel, getGraphPane, getSelectionModel, removeEdge, removeGraphViewListener, removeNode, rerender, rerenderEdge, rerenderNode, setGraphModel, setGraphPane, setSelectionModel

Methods inherited from class java.lang.Object

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

Field Detail

_animated

protected Figure _animated

Currently animated state, if any.

_animationRenderer

protected SelectionRenderer _animationRenderer

Renderer for animation.

_configureAction

protected static ConfigureAction _configureAction

The configure action.

_configureMenuFactory

protected static MenuActionFactory _configureMenuFactory

The submenu for configure actions.

_menuCreator

protected MenuCreator _menuCreator

The interactor for creating context sensitive menus on the graph itself.

_menuFactory

protected PtolemyMenuFactory _menuFactory

The factory belonging to the menu creator.

_openBaseClassAction

protected BasicGraphController.OpenBaseClassAction _openBaseClassAction

The open base class action.

_unitSolverDialogAction

protected BasicGraphController.UnitSolverDialogAction _unitSolverDialogAction

The UnitSolverDialog action.

Constructor Detail

BasicGraphController

public BasicGraphController()

Create a new basic controller.

Method Detail

clearAllErrorHighlights

public void clearAllErrorHighlights()

Request a change that clears all the error highlights.

highlightError

public void highlightError(Nameable culprit)

Highlight the specified object and all its containers to indicate that it is the source of an error.

Parameters:

culprit - The culprit.

addToMenuAndToolbar

public void addToMenuAndToolbar(javax.swing.JMenu menu,
                                javax.swing.JToolBar toolbar)

Add commands to the specified menu and toolbar, as appropriate for this controller. In this base class, nothing is added.

Parameters:

menu - The menu to add to, or null if none.

toolbar - The toolbar to add to, or null if none.

clearAnimation

public void clearAnimation()

Clear any animation highlight that might currently be active.

event

public void event(DebugEvent event)

React to an event. This base class does nothing.

Specified by:

event in interface DebugListener

Parameters:

event - The debug event.

getAnimationDelay

public long getAnimationDelay()

Get the time delay for animation. After highlighting, derived classes are expected to sleep for the specified amount of time, in milliseconds.

Returns:

The animation delay set by setAnimationDelay().

See Also:

setAnimationDelay(long)

getConfiguration

public Configuration getConfiguration()

Return the configuration that has been specified by setConfiguration(), or null if none.

Returns:

The configuration.

See Also:

setConfiguration(Configuration)

getConfigureMenuFactory

public MenuActionFactory getConfigureMenuFactory()

Return the configuration menu factory.

Returns:

The configuration menu factory.

getFrame

public BasicGraphFrame getFrame()

Get the graph frame, or null if there is none. This is used by some of the controllers to mark the modified bit of the frame and to update any dependents.

Returns:

The graph frame, or null if there is none.

See Also:

setFrame(BasicGraphFrame)

getNodeController

public NodeController getNodeController(java.lang.Object object)

Return the node controller appropriate for the given object. In this base class, the method checks to see whether the object is an instance of Locatable and contains a NodeControllerFactory (which is an attribute). If it does, then it invokes that factory to create a node controller. Otherwise, it returns null.

Specified by:

getNodeController in interface GraphController

Specified by:

getNodeController in class AbstractGraphController

Parameters:

object - The object to get a controller for.

Returns:

A custom node controller if there is one, and null otherwise.

message

public void message(java.lang.String message)

React to a debug message. This base class does nothing.

Specified by:

message in interface DebugListener

Parameters:

message - The message.

setAnimationDelay

public void setAnimationDelay(long time)

Set the time delay for animation. After highlighting, derived classes are expected to sleep for the specified amount of time, in milliseconds. If this method is not called, or is called with argument 0, then no delay is introduced.

Parameters:

time - Time to sleep, in milliseconds.

See Also:

getAnimationDelay()

setConfiguration

public void setConfiguration(Configuration configuration)

Set the configuration. This is used by some of the controllers when opening files or URLs. The configuration is checked for a "_getDocumentationActionDocPreference", which, if present, is an integer that is passed to GetDocumentationAction.GetDocumentationAction(int). This attribute is used to select the Kepler-specific KeplerDocumentationAttribute.

Parameters:

configuration - The configuration.

See Also:

getConfiguration()

setFigure

public void setFigure(java.lang.Object semanticObject,
                      Figure figure)

Set the figure associated with the given semantic object, and if that semantic object is Settable, then set up a value listener so that if its value changes, then the valueChanged() method is invoked. The semantic object is normally an attribute that implements the Locatable interface, and the value indicates the location of the object. A null figure clears the association.

Specified by:

setFigure in interface GraphController

Overrides:

setFigure in class AbstractGraphController

Parameters:

semanticObject - The semantic object (normally a Locatable).

figure - The figure.

setFrame

public void setFrame(BasicGraphFrame frame)

Set the graph frame. This is used by some of the controllers to mark the modified bit of the frame and to update any dependents.

Parameters:

frame - The graph frame, or null if there is none.

See Also:

getFrame()

valueChanged

public void valueChanged(Settable settable)

React to the fact that the specified Settable has changed. If the specified Settable implements the Locatable interface, then this method will move the figure and reroute any connections to it. This is done immediately if the caller is in the Swing event thread, but otherwise is deferred to the event thread.

Specified by:

valueChanged in interface ValueListener

Parameters:

settable - The object that has changed value.

_addHotKeys

protected void _addHotKeys(JGraph jgraph)

Add hot keys to the actions in the given JGraph.

Parameters:

jgraph - The JGraph to which hot keys are to be added.

_createControllers

protected void _createControllers()

Create the controllers for nodes in this graph. In this base class, nothing is created. This is called by the constructor, so derived classes that override this must be careful not to reference local variables defined in the derived classes, because the derived classes will not have been fully constructed by the time this is called.

_areThereActiveErrorHighlights

protected boolean _areThereActiveErrorHighlights()

Return true if there are active highlights.

Returns:

True if the list if error highlights is not empty.

_getClearAllErrorHighlightsChangeRequest

protected ChangeRequest _getClearAllErrorHighlightsChangeRequest()

Return a change request that clears all the highlights.

Returns:

a change request that clears all the highlights.

_initializeInteraction

protected void _initializeInteraction(NamedObjController controller)

Initialize interactions for the specified controller. This method is called when a new controller is constructed. This base class does nothing, but derived classes may attach interactors to the specified controller.

Parameters:

controller - The controller for which to initialize interaction.

initializeInteraction

protected void initializeInteraction()

Initialize all interaction on the graph pane. This method is called by the setGraphPane() method of the superclass. This initialization cannot be done in the constructor because the controller does not yet have a reference to its pane at that time. Regrettably, the canvas is not yet associated with the GraphPane, so you can't do any initialization that involves the canvas.

Specified by:

initializeInteraction in class AbstractGraphController