/**
* Adds the given execution statement to the lifeline view it covers.
*
* @param executionStatement the {@link ExecutionStatement} to add
*/
private void addStatementView(ExecutionStatement executionStatement) {
Lifeline lifeline = executionStatement.getCovered().get(0);
LifelineView lifelineView = lifelines.get(lifeline);
int modelIndex = getModelIndex(executionStatement);
// Currently we assume that the statements specification is always an opaque expression.
// If this changes we need to adaptively get the actual value.
TextView textView =
new TextView(executionStatement, RamPackage.Literals.EXECUTION_STATEMENT__SPECIFICATION);
textView.setNoFill(false);
textView.setNoStroke(false);
textView.setFillColor(Colors.MESSAGE_STATEMENT_FILL_COLOR);
ITextViewHandler textViewHandler =
HandlerFactoryMessageView.INSTANCE.getExecutionStatementHandler();
textView.registerTapProcessor(textViewHandler);
textView.registerInputProcessor(
new TapAndHoldProcessor(RamApp.getApplication(), Constants.TAP_AND_HOLD_DURATION));
textView.addGestureListener(TapAndHoldProcessor.class, textViewHandler);
textView.addGestureListener(
TapAndHoldProcessor.class,
new TapAndHoldVisualizer(RamApp.getApplication(), RamApp.getActiveScene().getCanvas()));
textView.setPlaceholderText(Strings.PH_SPECIFY_STATEMENT);
addChild(textView);
lifelineView.addStatement(textView, executionStatement, modelIndex);
fragments.put(executionStatement, textView);
layoutMessageView();
}
/**
* Adds a new view for the given lifeline to this view.
*
* @param lifeline the {@link Lifeline} a view is required for
*/
private void addLifelineView(Lifeline lifeline) {
LayoutElement layoutElement = layout.getValue().get(lifeline);
LifelineView lifelineView = new LifelineView(this, lifeline, layoutElement);
addChild(lifelineView);
lifelineView.setHandler(HandlerFactoryMessageView.INSTANCE.getLifelineViewHandler());
lifelines.put(lifeline, lifelineView);
}
/**
* Creates a view for the given assignment statement and adds it to the lifeline view it covers.
*
* @param assignmentStatement the {@link AssignmentStatement} to add
*/
private void addAssignmentStatement(AssignmentStatement assignmentStatement) {
Lifeline lifeline = assignmentStatement.getCovered().get(0);
LifelineView lifelineView = lifelines.get(lifeline);
int modelIndex = getModelIndex(assignmentStatement);
AssignmentStatementView assignmentView = new AssignmentStatementView(assignmentStatement);
addChild(assignmentView);
assignmentView.setHandler(HandlerFactoryMessageView.INSTANCE.getAssignmentStatementHandler());
lifelineView.addAssignment(assignmentView, assignmentStatement, modelIndex);
fragments.put(assignmentStatement, assignmentView);
layoutMessageView();
}
/**
* Adds a new view for the given message to this view. A message is represented by a view on each
* end and a view representing the actual call. The end views are added to the corresponding
* lifelines. In case an end is a gate and not placed on a lifeline, a {@link GateView} is used
* instead and added to this view at the left side.
*
* @param message the {@link Message} to add
*/
private void addMessageView(Message message) {
LifelineView toView = null;
LifelineView fromView = null;
RamRectangleComponent sendEventView = null;
RamRectangleComponent receiveEventView = null;
MessageEnd sendEvent = message.getSendEvent();
MessageEnd receiveEvent = message.getReceiveEvent();
Operation signature = message.getSignature();
boolean messageViewDefined = false;
if (signature != null && specifies != signature) {
Aspect aspect = EMFModelUtil.getRootContainerOfType(signature, RamPackage.Literals.ASPECT);
/**
* Make sure that the signature still exists in the aspect. It could have been deleted and
* would then cause problems here.
*/
if (aspect != null) {
messageViewDefined = RAMModelUtil.isMessageViewDefined(aspect, signature);
}
}
if (sendEvent instanceof MessageOccurrenceSpecification) {
MessageOccurrenceSpecification event = (MessageOccurrenceSpecification) sendEvent;
fromView = lifelines.get(event.getCovered().get(0));
int modelIndex = event.getContainer().getFragments().indexOf(sendEvent);
if (fromView != null) {
boolean allowMessageCreation = false;
// Allow creation after sending a message where no return is expected.
if (signature != null && signature.getReturnType() != null) {
Type returnType = signature.getReturnType();
allowMessageCreation =
message.getMessageSort() != MessageSort.REPLY
&& !message.isSelfMessage()
&& (returnType.eClass() == RamPackage.Literals.RVOID
|| message.getMessageSort() == MessageSort.CREATE_MESSAGE
|| signature.eContainer() instanceof ImplementationClass
// When a message view is defined, there will be no reply, so we need to allow
// it.
|| messageViewDefined);
}
sendEventView = fromView.addMessageEnd(event, modelIndex, allowMessageCreation);
}
}
if (receiveEvent instanceof MessageOccurrenceSpecification) {
MessageOccurrenceSpecification event = (MessageOccurrenceSpecification) receiveEvent;
toView = lifelines.get(event.getCovered().get(0));
int modelIndex = event.getContainer().getFragments().indexOf(receiveEvent);
if (toView != null) {
if (message.getMessageSort() == MessageSort.CREATE_MESSAGE) {
receiveEventView = toView;
} else {
boolean allowMessageCreation = message.getMessageSort() != MessageSort.DELETE_MESSAGE;
if (signature != null) {
// Don't allow message creation if the receiving end is on an implementation class.
// If it is a self message it cannot be on an implementation class and is allowed.
allowMessageCreation =
allowMessageCreation
&& !(signature.eContainer() instanceof ImplementationClass)
&& (!messageViewDefined || message.isSelfMessage());
}
receiveEventView = toView.addMessageEnd(event, modelIndex, allowMessageCreation);
}
}
}
if (sendEventView == null) {
Vector3D oppositePosition = receiveEventView.getPosition(TransformSpace.GLOBAL);
sendEventView = new GateView(0, oppositePosition.getY(), BOX_WIDTH, BOX_HEIGHT);
addChild(sendEventView);
} else if (receiveEventView == null) {
Vector3D oppositePosition = sendEventView.getPosition(TransformSpace.GLOBAL);
receiveEventView = new GateView(0, oppositePosition.getY(), BOX_WIDTH, BOX_HEIGHT);
addChild(receiveEventView);
}
MessageCallView messageCallView = new MessageCallView(message, sendEventView, receiveEventView);
addChild(messageCallView);
messageCallView.setHandler(HandlerFactoryMessageView.INSTANCE.getMessageHandler());
messages.put(message, messageCallView);
layoutMessageView();
messageCallView.updateLines();
}