package org.eclipse.uml2.diagram.statemachine.edit.policies;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Status;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.transaction.Transaction;
import org.eclipse.emf.workspace.AbstractEMFOperation;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.commands.Command;
import org.eclipse.gmf.runtime.common.core.util.StringStatics;
import org.eclipse.gmf.runtime.diagram.core.util.ViewUtil;
import org.eclipse.gmf.runtime.diagram.ui.commands.DeferredLayoutCommand;
import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.commands.SetBoundsCommand;
import org.eclipse.gmf.runtime.diagram.ui.commands.SetViewMutabilityCommand;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.CanonicalEditPolicy;
import org.eclipse.gmf.runtime.diagram.ui.l10n.DiagramUIMessages;
import org.eclipse.gmf.runtime.diagram.ui.requests.CreateViewRequest;
import org.eclipse.gmf.runtime.emf.commands.core.command.CompositeTransactionalCommand;
import org.eclipse.gmf.runtime.emf.core.util.EObjectAdapter;
import org.eclipse.gmf.runtime.notation.Bounds;
import org.eclipse.gmf.runtime.notation.Location;
import org.eclipse.gmf.runtime.notation.Node;
import org.eclipse.gmf.runtime.notation.Ratio;
import org.eclipse.gmf.runtime.notation.Size;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.uml2.diagram.common.genapi.IUpdaterNodeDescriptor;
import org.eclipse.uml2.diagram.statemachine.edit.parts.ChoicePseudostateEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.CommentEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.CompositeStateEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.DeepHistoryPseudostateEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.DoActivityEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.EntryActivityEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.EntryConnectionPointReferenceEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.EntryPointPseudostateEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.ExitActivityEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.ExitConnectionPointReferenceEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.ExitPointPseudostateEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.FinalStateEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.ForkPseudostateEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.InitialPseudostateEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.InternalTransitionEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.JoinPseudostateEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.JunctionPseudostateEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.ShallowHistoryPseudostateEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.SimpleStateEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.StateMachineEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.StateMachine_RegionEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.State_RegionEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.SubmachineStateEditPart;
import org.eclipse.uml2.diagram.statemachine.edit.parts.TerminatePseudostateEditPart;
import org.eclipse.uml2.diagram.statemachine.part.UMLDiagramEditorPlugin;
import org.eclipse.uml2.diagram.statemachine.part.UMLDiagramUpdater;
import org.eclipse.uml2.diagram.statemachine.part.UMLNodeDescriptor;
import org.eclipse.uml2.diagram.statemachine.part.UMLVisualIDRegistry;
import org.eclipse.uml2.uml.UMLPackage;
/**
* @generated
*/
public class SubmachineStateCanonicalEditPolicy extends CanonicalEditPolicy {
/**
* @generated
*/
private Set<EStructuralFeature> myFeaturesToSynchronize;
/**
* @generated
*/
protected void refreshOnActivate() {
// Need to activate editpart children before invoking the canonical refresh for EditParts to add event listeners
List<?> c = getHost().getChildren();
for (int i = 0; i < c.size(); i++) {
((EditPart) c.get(i)).activate();
}
super.refreshOnActivate();
}
/**
* @generated
*/
@SuppressWarnings("rawtypes")
protected List getSemanticChildrenList() {
View viewObject = (View) getHost().getModel();
LinkedList<EObject> result = new LinkedList<EObject>();
List<UMLNodeDescriptor> childDescriptors = UMLDiagramUpdater.getState_3016SemanticChildren(viewObject);
for (UMLNodeDescriptor d : childDescriptors) {
result.add(d.getModelElement());
}
return result;
}
/**
* @generated
*/
@SuppressWarnings("unchecked")
protected boolean isOrphaned(Collection<EObject> semanticChildren, final View view) {
return isMyDiagramElement(view) ? !semanticChildren.contains(view.getElement()) : isDefinitelyNotMyDiagramElement(view);
}
/**
* @generated
*/
private boolean isDefinitelyNotMyDiagramElement(View view) {
int visualID = UMLVisualIDRegistry.getVisualID(view);
switch (visualID) {
case StateMachineEditPart.VISUAL_ID:
case CommentEditPart.VISUAL_ID:
case StateMachine_RegionEditPart.VISUAL_ID:
case SimpleStateEditPart.VISUAL_ID:
case EntryActivityEditPart.VISUAL_ID:
case ExitActivityEditPart.VISUAL_ID:
case DoActivityEditPart.VISUAL_ID:
case CompositeStateEditPart.VISUAL_ID:
case SubmachineStateEditPart.VISUAL_ID:
case InternalTransitionEditPart.VISUAL_ID:
case FinalStateEditPart.VISUAL_ID:
case InitialPseudostateEditPart.VISUAL_ID:
case ShallowHistoryPseudostateEditPart.VISUAL_ID:
case DeepHistoryPseudostateEditPart.VISUAL_ID:
case ForkPseudostateEditPart.VISUAL_ID:
case JoinPseudostateEditPart.VISUAL_ID:
case JunctionPseudostateEditPart.VISUAL_ID:
case ChoicePseudostateEditPart.VISUAL_ID:
case TerminatePseudostateEditPart.VISUAL_ID:
case EntryPointPseudostateEditPart.VISUAL_ID:
case ExitPointPseudostateEditPart.VISUAL_ID:
return true;
}
return false;
}
/**
* @generated
*/
private boolean isMyDiagramElement(View view) {
int visualID = UMLVisualIDRegistry.getVisualID(view);
return visualID == State_RegionEditPart.VISUAL_ID || visualID == EntryConnectionPointReferenceEditPart.VISUAL_ID || visualID == ExitConnectionPointReferenceEditPart.VISUAL_ID;
}
/**
* @generated
*/
protected void refreshSemantic() {
if (resolveSemanticElement() == null) {
return;
}
LinkedList<IAdaptable> createdViews = new LinkedList<IAdaptable>();
List<UMLNodeDescriptor> childDescriptors = UMLDiagramUpdater.getState_3016SemanticChildren((View) getHost().getModel());
LinkedList<View> orphaned = new LinkedList<View>();
// we care to check only views we recognize as ours
LinkedList<View> knownViewChildren = new LinkedList<View>();
for (View v : getViewChildren()) {
if (isMyDiagramElement(v)) {
knownViewChildren.add(v);
}
}
// alternative to #cleanCanonicalSemanticChildren(getViewChildren(), semanticChildren)
HashMap<UMLNodeDescriptor, LinkedList<View>> potentialViews = new HashMap<UMLNodeDescriptor, LinkedList<View>>();
//
// iteration happens over list of desired semantic elements, trying to find best matching View, while original CEP
// iterates views, potentially losing view (size/bounds) information - i.e. if there are few views to reference same EObject, only last one
// to answer isOrphaned == true will be used for the domain element representation, see #cleanCanonicalSemanticChildren()
for (Iterator<UMLNodeDescriptor> descriptorsIterator = childDescriptors.iterator(); descriptorsIterator.hasNext();) {
UMLNodeDescriptor next = descriptorsIterator.next();
String hint = UMLVisualIDRegistry.getType(next.getVisualID());
LinkedList<View> perfectMatch = new LinkedList<View>(); // both semanticElement and hint match that of NodeDescriptor
LinkedList<View> potentialMatch = new LinkedList<View>(); // semanticElement matches, hint does not
for (View childView : getViewChildren()) {
EObject semanticElement = childView.getElement();
if (next.getModelElement().equals(semanticElement)) {
//if (hint.equals(childView.getType())) {
if (UMLVisualIDRegistry.checkNodeVisualID((View) (getHost().getModel()), semanticElement, next.getVisualID())) {
perfectMatch.add(childView);
// actually, can stop iteration over view children here, but
// may want to use not the first view but last one as a 'real' match (the way original CEP does
// with its trick with viewToSemanticMap inside #cleanCanonicalSemanticChildren
} else {
potentialMatch.add(childView);
}
}
}
if (perfectMatch.size() > 0) {
descriptorsIterator.remove(); // precise match found no need to create anything for the NodeDescriptor
// use only one view (first or last?), keep rest as orphaned for further consideration
knownViewChildren.remove(perfectMatch.getLast());
} else if (potentialMatch.size() > 0) {
potentialViews.put(next, potentialMatch);
}
}
// those left in knownViewChildren are subject to removal - they are our diagram elements we didn't find match to,
// or those we have potential matches to, and thus need to be recreated, preserving size/location information.
orphaned.addAll(knownViewChildren);
//
CompositeTransactionalCommand boundsCommand = new CompositeTransactionalCommand(host().getEditingDomain(), DiagramUIMessages.SetLocationCommand_Label_Resize);
ArrayList<CreateViewRequest.ViewDescriptor> viewDescriptors = new ArrayList<CreateViewRequest.ViewDescriptor>(childDescriptors.size());
for (UMLNodeDescriptor next : childDescriptors) {
String hint = UMLVisualIDRegistry.getType(next.getVisualID());
IAdaptable elementAdapter = new CanonicalElementAdapter(next.getModelElement(), hint);
CreateViewRequest.ViewDescriptor descriptor = new CreateViewRequest.ViewDescriptor(elementAdapter, Node.class, hint, ViewUtil.APPEND, false, host().getDiagramPreferencesHint());
viewDescriptors.add(descriptor);
LinkedList<View> possibleMatches = potentialViews.get(next);
if (possibleMatches != null) {
// from potential matches, leave those that were not eventually used for some other NodeDescriptor (i.e. those left as orphaned)
possibleMatches.retainAll(knownViewChildren);
}
if (possibleMatches != null && !possibleMatches.isEmpty()) {
View originalView = possibleMatches.getFirst();
knownViewChildren.remove(originalView); // remove not to copy properties of the same view again and again
// add command to copy properties
if (originalView instanceof Node) {
if (((Node) originalView).getLayoutConstraint() instanceof Bounds) {
Bounds b = (Bounds) ((Node) originalView).getLayoutConstraint();
boundsCommand.add(new SetBoundsCommand(boundsCommand.getEditingDomain(), boundsCommand.getLabel(), descriptor, new Rectangle(b.getX(), b.getY(), b.getWidth(), b.getHeight())));
} else if (((Node) originalView).getLayoutConstraint() instanceof Location) {
Location l = (Location) ((Node) originalView).getLayoutConstraint();
boundsCommand.add(new SetBoundsCommand(boundsCommand.getEditingDomain(), boundsCommand.getLabel(), descriptor, new Point(l.getX(), l.getY())));
} else if (((Node) originalView).getLayoutConstraint() instanceof Size) {
Size s = (Size) ((Node) originalView).getLayoutConstraint();
boundsCommand.add(new SetBoundsCommand(boundsCommand.getEditingDomain(), boundsCommand.getLabel(), descriptor, new Dimension(s.getWidth(), s.getHeight())));
}
}
}
}
boolean changed = deleteViews(orphaned.iterator());
//
CreateViewRequest request = getCreateViewRequest(viewDescriptors);
Command cmd = getCreateViewCommand(request);
if (cmd != null && cmd.canExecute()) {
SetViewMutabilityCommand.makeMutable(new EObjectAdapter(host().getNotationView())).execute();
executeCommand(cmd);
if (boundsCommand.canExecute()) {
executeCommand(new ICommandProxy(boundsCommand.reduce()));
}
@SuppressWarnings("unchecked")
List<IAdaptable> nl = (List<IAdaptable>) request.getNewObject();
createdViews.addAll(nl);
}
if (changed || createdViews.size() > 0) {
postProcessRefreshSemantic(createdViews);
}
if (createdViews.size() > 1) {
// perform a layout of the container
DeferredLayoutCommand layoutCmd = new DeferredLayoutCommand(host().getEditingDomain(), createdViews, host());
executeCommand(new ICommandProxy(layoutCmd));
}
makeViewsImmutable(createdViews);
}
/**
* @generated
*/
protected Set getFeaturesToSynchronize() {
if (myFeaturesToSynchronize == null) {
myFeaturesToSynchronize = new HashSet<EStructuralFeature>();
myFeaturesToSynchronize.add(UMLPackage.eINSTANCE.getState_Region());
myFeaturesToSynchronize.add(UMLPackage.eINSTANCE.getState_Connection());
}
return myFeaturesToSynchronize;
}
}