/**
* Builds all fragments in the appropriate order to display in this view. Can be called
* recursively for different containers.
*
* @param container the {@link FragmentContainer} containing the fragments
*/
private void buildFragments(FragmentContainer container) {
for (InteractionFragment fragment : container.getFragments()) {
switch (fragment.eClass().getClassifierID()) {
case RamPackage.MESSAGE_OCCURRENCE_SPECIFICATION:
MessageOccurrenceSpecification messageEvent = (MessageOccurrenceSpecification) fragment;
if (!messages.containsKey(messageEvent.getMessage())) {
addMessageView(messageEvent.getMessage());
}
break;
case RamPackage.EXECUTION_STATEMENT:
ExecutionStatement executionStatement = (ExecutionStatement) fragment;
addStatementView(executionStatement);
break;
case RamPackage.COMBINED_FRAGMENT:
CombinedFragment combinedFragment = (CombinedFragment) fragment;
addCombinedFragment(combinedFragment);
for (InteractionOperand operand : combinedFragment.getOperands()) {
buildFragments(operand);
}
break;
case RamPackage.ASSIGNMENT_STATEMENT:
AssignmentStatement assignmentStatement = (AssignmentStatement) fragment;
addAssignmentStatement(assignmentStatement);
break;
case RamPackage.ORIGINAL_BEHAVIOR_EXECUTION:
OriginalBehaviorExecution originalBehaviorExecution =
(OriginalBehaviorExecution) fragment;
addOriginalBehaviourView(originalBehaviorExecution);
break;
}
}
}
/**
* Removes the combined fragment from this view. Removes the combined fragment from all covered
* lifeline views.
*
* @param combinedFragment the {@link CombinedFragment} to remove
*/
private void removeCombinedFragment(CombinedFragment combinedFragment) {
CombinedFragmentView combinedFragmentView = combinedFragments.remove(combinedFragment);
// For debug purpose only.
if (combinedFragmentView == null) {
System.err.println(
"Should not happen: Something went wrong in the order of removing objects.");
}
for (Lifeline lifeline : combinedFragment.getCovered()) {
LifelineView lifelineView = lifelines.get(lifeline);
lifelineView.removeCombinedFragment(combinedFragment);
}
removeChild(combinedFragmentView);
combinedFragmentView.destroy();
layoutMessageView();
}
/**
* Layouts all fragments along this view. Can be called recursively for different fragment
* containers.
*
* @param container the {@link FragmentContainer} for which fragments should be layouted
* @param nextfragmentY the y-position for the next fragment
* @return the y-position for the next fragment
*/
private float layoutFragments(FragmentContainer container, float nextfragmentY) {
float previousFragmentY = nextfragmentY;
float currentFragmentY = nextfragmentY;
boolean receiveEventNext = false;
// Make sure that all messages are updated, since this might be necessary due to moving the
// lifelines around.
for (InteractionFragment fragment : container.getFragments()) {
int index = fragment.getContainer().getFragments().indexOf(fragment);
for (Lifeline lifeline : fragment.getCovered()) {
LifelineView lifelineView = lifelines.get(lifeline);
// In case of a create message the lifeline has to be moved down depending on the name
// height.
if (fragment instanceof MessageOccurrenceSpecification) {
MessageOccurrenceSpecification messageEnd = (MessageOccurrenceSpecification) fragment;
// If the message was removed, but the message ends are still there,
// ignore them.
if (!messages.containsKey(messageEnd.getMessage())) {
continue;
}
if (messageEnd.getMessage().getMessageSort() == MessageSort.CREATE_MESSAGE
&& messageEnd.getMessage().getReceiveEvent() == messageEnd) {
float lifelineNameHeight = lifelineView.getNameHeight();
float difference = lifelineNameHeight - BOX_HEIGHT;
float lifelineY = currentFragmentY - (difference / 2f);
/** Convert global position to relative one. */
lifelineY =
getGlobalVecToParentRelativeSpace(lifelineView, new Vector3D(0, lifelineY)).y;
lifelineView.getLayoutElement().setY(lifelineY);
currentFragmentY += lifelineNameHeight;
receiveEventNext = false;
continue;
}
}
RamRectangleComponent fragmentView = lifelineView.getFragmentView(fragment, index);
// view is null when message was just removed
if (fragmentView != null) {
RamRectangleComponent spacer = lifelineView.getSpacerForFragmentAt(fragment, index);
// Start with the position of the first spacer.
if (currentFragmentY == LIFELINE_Y) {
currentFragmentY = spacer.getPosition(TransformSpace.GLOBAL).getY();
}
if (!receiveEventNext) {
currentFragmentY += BOX_HEIGHT;
}
Vector3D currentPosition = fragmentView.getPosition(TransformSpace.GLOBAL);
if (currentPosition.getY() != currentFragmentY) {
float difference = currentFragmentY - currentPosition.getY();
float height = spacer.getHeight() + difference;
// Fix the height to not go below the minimum size.
if (height < BOX_HEIGHT) {
height = BOX_HEIGHT;
}
spacer.setMinimumHeight(height);
// Need to inform parent manually.
spacer.updateParent();
}
if (fragment instanceof MessageOccurrenceSpecification) {
MessageOccurrenceSpecification messageEnd = (MessageOccurrenceSpecification) fragment;
Message message = messageEnd.getMessage();
/**
* Prevent moving downwards if the next event will be a receive event. However, if it is
* a self message we need to move downwards. If it is the send event of a reply that
* ends in a gate, there will be no next event.
*/
if (!message.isSelfMessage()
&& message.getSendEvent() == messageEnd
&& message.getReceiveEvent().eClass() != RamPackage.Literals.GATE) {
receiveEventNext = true;
} else {
receiveEventNext = false;
}
}
if (fragment instanceof CombinedFragment) {
CombinedFragment combinedFragment = (CombinedFragment) fragment;
CombinedFragmentView combinedFragmentView = combinedFragments.get(combinedFragment);
if (combinedFragment.getCovered().indexOf(lifeline) == 0) {
Vector3D position = combinedFragmentView.getPosition(TransformSpace.GLOBAL);
position.setY(currentFragmentY);
combinedFragmentView.setPositionGlobal(position);
receiveEventNext = true;
}
// Only increase y if it is the last lifeline.
int lastIndex = combinedFragment.getCovered().size() - 1;
if (combinedFragment.getCovered().indexOf(lifeline) == lastIndex) {
for (InteractionOperand operand : combinedFragment.getOperands()) {
float operandHeight = combinedFragmentView.getOperandMinimumHeight(operand);
if (operand.getFragments().size() > 0) {
operandHeight += layoutFragments(operand, currentFragmentY + operandHeight);
}
// Add an additional space due to the additional spacer in the operand.
// This also supports empty operands.
operandHeight += BOX_HEIGHT;
combinedFragmentView.setOperandHeight(operand, operandHeight);
currentFragmentY += operandHeight;
}
combinedFragmentView.updateLayout();
receiveEventNext = false;
}
} else if (!receiveEventNext) {
currentFragmentY += fragmentView.getHeight();
}
}
}
}
return currentFragmentY - previousFragmentY;
}