/* | |
* | |
*/ | |
package comrel.diagram.edit.policies; | |
import java.util.ArrayList; | |
import java.util.Collection; | |
import java.util.HashSet; | |
import java.util.Iterator; | |
import java.util.LinkedList; | |
import java.util.List; | |
import java.util.Set; | |
import org.eclipse.core.runtime.IAdaptable; | |
import org.eclipse.emf.ecore.EObject; | |
import org.eclipse.emf.ecore.EStructuralFeature; | |
import org.eclipse.gef.commands.Command; | |
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.SetViewMutabilityCommand; | |
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.CanonicalEditPolicy; | |
import org.eclipse.gmf.runtime.diagram.ui.requests.CreateViewRequest; | |
import org.eclipse.gmf.runtime.emf.core.util.EObjectAdapter; | |
import org.eclipse.gmf.runtime.notation.Node; | |
import org.eclipse.gmf.runtime.notation.View; | |
import comrel.ComrelPackage; | |
import comrel.diagram.edit.parts.MultiInputPortEditPart; | |
import comrel.diagram.edit.parts.SingleInputPort2EditPart; | |
import comrel.diagram.part.ComrelDiagramUpdater; | |
import comrel.diagram.part.ComrelNodeDescriptor; | |
import comrel.diagram.part.ComrelVisualIDRegistry; | |
/** | |
* @generated | |
*/ | |
public class CartesianQueuedUnitCanonicalEditPolicy extends CanonicalEditPolicy { | |
/** | |
* @generated | |
*/ | |
private Set<EStructuralFeature> myFeaturesToSynchronize; | |
/** | |
* @generated | |
*/ | |
protected Set getFeaturesToSynchronize() { | |
if (myFeaturesToSynchronize == null) { | |
myFeaturesToSynchronize = new HashSet<EStructuralFeature>(); | |
myFeaturesToSynchronize.add(ComrelPackage.eINSTANCE | |
.getCartesianQueuedUnit_SingleInputPorts()); | |
myFeaturesToSynchronize.add(ComrelPackage.eINSTANCE | |
.getCartesianQueuedUnit_MultiInputPorts()); | |
} | |
return myFeaturesToSynchronize; | |
} | |
/** | |
* @generated | |
*/ | |
@SuppressWarnings("rawtypes") | |
protected List getSemanticChildrenList() { | |
View viewObject = (View) getHost().getModel(); | |
LinkedList<EObject> result = new LinkedList<EObject>(); | |
List<ComrelNodeDescriptor> childDescriptors = ComrelDiagramUpdater | |
.getCartesianQueuedUnit_2002SemanticChildren(viewObject); | |
for (ComrelNodeDescriptor d : childDescriptors) { | |
result.add(d.getModelElement()); | |
} | |
return result; | |
} | |
/** | |
* @generated | |
*/ | |
protected boolean isOrphaned(Collection<EObject> semanticChildren, | |
final View view) { | |
return isMyDiagramElement(view) | |
&& !semanticChildren.contains(view.getElement()); | |
} | |
/** | |
* @generated | |
*/ | |
private boolean isMyDiagramElement(View view) { | |
int visualID = ComrelVisualIDRegistry.getVisualID(view); | |
return visualID == SingleInputPort2EditPart.VISUAL_ID | |
|| visualID == MultiInputPortEditPart.VISUAL_ID; | |
} | |
/** | |
* @generated | |
*/ | |
protected void refreshSemantic() { | |
if (resolveSemanticElement() == null) { | |
return; | |
} | |
LinkedList<IAdaptable> createdViews = new LinkedList<IAdaptable>(); | |
List<ComrelNodeDescriptor> childDescriptors = ComrelDiagramUpdater | |
.getCartesianQueuedUnit_2002SemanticChildren((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) | |
// | |
// 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<ComrelNodeDescriptor> descriptorsIterator = childDescriptors | |
.iterator(); descriptorsIterator.hasNext();) { | |
ComrelNodeDescriptor next = descriptorsIterator.next(); | |
String hint = ComrelVisualIDRegistry.getType(next.getVisualID()); | |
LinkedList<View> perfectMatch = new LinkedList<View>(); // both semanticElement and hint match that of NodeDescriptor | |
for (View childView : getViewChildren()) { | |
EObject semanticElement = childView.getElement(); | |
if (next.getModelElement().equals(semanticElement)) { | |
if (hint.equals(childView.getType())) { | |
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 | |
} | |
} | |
} | |
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.getFirst()); | |
} | |
} | |
// 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); | |
// | |
ArrayList<CreateViewRequest.ViewDescriptor> viewDescriptors = new ArrayList<CreateViewRequest.ViewDescriptor>( | |
childDescriptors.size()); | |
for (ComrelNodeDescriptor next : childDescriptors) { | |
String hint = ComrelVisualIDRegistry.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); | |
} | |
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); | |
@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); | |
} | |
} |