| package org.eclipse.stem.core.model.provider; |
| |
| /******************************************************************************* |
| * Copyright (c) 2006, 2008 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.emf.common.command.Command; |
| import org.eclipse.emf.common.command.CompoundCommand; |
| import org.eclipse.emf.common.notify.AdapterFactory; |
| import org.eclipse.emf.common.notify.Notification; |
| import org.eclipse.emf.common.util.ResourceLocator; |
| import org.eclipse.emf.common.util.URI; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.EStructuralFeature; |
| import org.eclipse.emf.ecore.resource.Resource; |
| import org.eclipse.emf.edit.command.AddCommand; |
| import org.eclipse.emf.edit.command.CreateChildCommand; |
| import org.eclipse.emf.edit.domain.EditingDomain; |
| import org.eclipse.emf.edit.provider.IEditingDomainItemProvider; |
| import org.eclipse.emf.edit.provider.IItemLabelProvider; |
| import org.eclipse.emf.edit.provider.IItemPropertyDescriptor; |
| import org.eclipse.emf.edit.provider.IItemPropertySource; |
| import org.eclipse.emf.edit.provider.IStructuredItemContentProvider; |
| import org.eclipse.emf.edit.provider.ITreeItemContentProvider; |
| import org.eclipse.emf.edit.provider.ViewerNotification; |
| import org.eclipse.stem.core.Utility; |
| import org.eclipse.stem.core.common.Identifiable; |
| import org.eclipse.stem.core.common.provider.CoreEditPlugin; |
| import org.eclipse.stem.core.common.provider.IdentifiableItemProvider; |
| import org.eclipse.stem.core.graph.Graph; |
| import org.eclipse.stem.core.graph.GraphFactory; |
| import org.eclipse.stem.core.model.Model; |
| import org.eclipse.stem.core.model.ModelFactory; |
| import org.eclipse.stem.core.model.ModelPackage; |
| import org.eclipse.swt.dnd.DND; |
| |
| /** |
| * This is the item provider adapter for a {@link org.eclipse.stem.core.model.Model} object. |
| * <!-- begin-user-doc --> |
| * <!-- end-user-doc --> |
| * @generated |
| */ |
| public class ModelItemProvider |
| extends IdentifiableItemProvider |
| implements |
| IEditingDomainItemProvider, |
| IStructuredItemContentProvider, |
| ITreeItemContentProvider, |
| IItemLabelProvider, |
| IItemPropertySource { |
| /** |
| * This constructs an instance from a factory and a notifier. |
| * <!-- begin-user-doc --> |
| * <!-- end-user-doc --> |
| * @generated |
| */ |
| public ModelItemProvider(AdapterFactory adapterFactory) { |
| super(adapterFactory); |
| } |
| |
| /** |
| * This returns the property descriptors for the adapted class. |
| * <!-- begin-user-doc --> |
| * <!-- end-user-doc --> |
| * @generated |
| */ |
| @Override |
| public List<IItemPropertyDescriptor> getPropertyDescriptors(Object object) { |
| if (itemPropertyDescriptors == null) { |
| super.getPropertyDescriptors(object); |
| |
| } |
| return itemPropertyDescriptors; |
| } |
| |
| /** |
| * This specifies how to implement {@link #getChildren} and is used to deduce an appropriate feature for an |
| * {@link org.eclipse.emf.edit.command.AddCommand}, {@link org.eclipse.emf.edit.command.RemoveCommand} or |
| * {@link org.eclipse.emf.edit.command.MoveCommand} in {@link #createCommand}. |
| * <!-- begin-user-doc --> |
| * <!-- end-user-doc --> |
| * @generated |
| */ |
| @Override |
| public Collection<? extends EStructuralFeature> getChildrenFeatures(Object object) { |
| if (childrenFeatures == null) { |
| super.getChildrenFeatures(object); |
| childrenFeatures.add(ModelPackage.Literals.MODEL__MODELS); |
| childrenFeatures.add(ModelPackage.Literals.MODEL__GRAPHS); |
| childrenFeatures.add(ModelPackage.Literals.MODEL__GRAPH_DECORATORS); |
| childrenFeatures.add(ModelPackage.Literals.MODEL__NODE_DECORATORS); |
| childrenFeatures.add(ModelPackage.Literals.MODEL__EDGE_DECORATORS); |
| } |
| return childrenFeatures; |
| } |
| |
| /** |
| * <!-- begin-user-doc --> |
| * <!-- end-user-doc --> |
| * @generated NOT |
| */ |
| @Override |
| protected EStructuralFeature getChildFeature(Object object, Object child) { |
| // Check the type of the specified child object and return the proper feature to use for |
| // adding (see {@link AddCommand}) it as a child. |
| |
| Object temp = child; |
| if (child instanceof IFile) { |
| // Yes |
| final IFile iFile = (IFile) child; |
| final URI uri = URI.createFileURI(iFile.getLocation().toString()); |
| final Identifiable identifable = Utility.getIdentifiable(uri); |
| temp = identifable; |
| } // if IFile |
| |
| else if (child instanceof String) { |
| // Yes |
| // These come from IdentifablePluginView |
| final String uriString = (String) child; |
| try { |
| final URI uri = URI.createURI(uriString); |
| final Identifiable identifable = Utility.getIdentifiable(uri); |
| temp = identifable; |
| } catch (Exception e) { |
| // Ignore it |
| } |
| } // if String |
| |
| if (temp instanceof Identifiable) { |
| return super.getChildFeature(object, temp); |
| } else |
| return super.getChildFeature(object, child); |
| } // getChildFeature |
| |
| /** |
| * <!-- begin-user-doc --> |
| * <!-- end-user-doc --> |
| * @generated |
| */ |
| protected EStructuralFeature getChildFeatureGen(Object object, Object child) { |
| // Check the type of the specified child object and return the proper feature to use for |
| // adding (see {@link AddCommand}) it as a child. |
| |
| return super.getChildFeature(object, child); |
| } |
| |
| /** |
| * This returns Model.gif. |
| * <!-- begin-user-doc --> |
| * <!-- end-user-doc --> |
| * @generated NOT |
| */ |
| @Override |
| public Object getImage(Object object) { |
| // return getImageGen(object); |
| return overlayImage(object, getResourceLocator().getImage("full/customobj16/Model")); |
| } |
| |
| /** |
| * This returns the label text for the adapted class. |
| * <!-- begin-user-doc --> |
| * <!-- end-user-doc --> |
| * @generated NOT |
| */ |
| @Override |
| public String getText(Object object) { |
| return super.getText(object); |
| } // getText |
| |
| /** |
| * This returns the label text for the adapted class. |
| * <!-- begin-user-doc --> |
| * <!-- end-user-doc --> |
| * @generated |
| */ |
| // @Override |
| @Override |
| public String getTextGen(Object object) { |
| URI labelValue = ((Model)object).getURI(); |
| String label = labelValue == null ? null : labelValue.toString(); |
| return label == null || label.length() == 0 ? |
| getString("_UI_Model_type") : //$NON-NLS-1$ |
| getString("_UI_Model_type") + " " + label; //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| |
| /** |
| * This handles model notifications by calling {@link #updateChildren} to update any cached |
| * children and by creating a viewer notification, which it passes to {@link #fireNotifyChanged}. |
| * <!-- begin-user-doc --> |
| * <!-- end-user-doc --> |
| * @generated |
| */ |
| @Override |
| public void notifyChanged(Notification notification) { |
| updateChildren(notification); |
| |
| switch (notification.getFeatureID(Model.class)) { |
| case ModelPackage.MODEL__MODELS: |
| case ModelPackage.MODEL__GRAPHS: |
| case ModelPackage.MODEL__GRAPH_DECORATORS: |
| case ModelPackage.MODEL__NODE_DECORATORS: |
| case ModelPackage.MODEL__EDGE_DECORATORS: |
| fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), true, false)); |
| return; |
| } |
| super.notifyChanged(notification); |
| } |
| |
| /** |
| * This adds {@link org.eclipse.emf.edit.command.CommandParameter}s describing the children |
| * that can be created under this object. |
| * <!-- begin-user-doc --> |
| * <!-- end-user-doc --> |
| * @generated |
| */ |
| @Override |
| protected void collectNewChildDescriptors(Collection<Object> newChildDescriptors, Object object) { |
| super.collectNewChildDescriptors(newChildDescriptors, object); |
| |
| newChildDescriptors.add |
| (createChildParameter |
| (ModelPackage.Literals.MODEL__MODELS, |
| ModelFactory.eINSTANCE.createModel())); |
| |
| newChildDescriptors.add |
| (createChildParameter |
| (ModelPackage.Literals.MODEL__GRAPHS, |
| GraphFactory.eINSTANCE.createGraph())); |
| } |
| |
| |
| /** |
| * @see org.eclipse.emf.edit.provider.ItemProviderAdapter#createDragAndDropCommand(org.eclipse.emf.edit.domain.EditingDomain, java.lang.Object, float, int, int, java.util.Collection) |
| */ |
| @Override |
| protected Command createDragAndDropCommand(EditingDomain domain, |
| Object owner, float location, int operations, int operation, |
| Collection<?> collection) { |
| // We add DND.DROP_LINK as an allowed operation because all drops will |
| // be links and some sources don't allow links, we convert to links anyway |
| return super.createDragAndDropCommand(domain, owner, location, operations | DND.DROP_LINK, |
| operation, collection); |
| } // createDragAndDropCommand |
| |
| /** |
| * @see org.eclipse.emf.edit.provider.ItemProviderAdapter#createAddCommand(org.eclipse.emf.edit.domain.EditingDomain, org.eclipse.emf.ecore.EObject, org.eclipse.emf.ecore.EStructuralFeature, java.util.Collection, int) |
| */ |
| @SuppressWarnings("unchecked") |
| @Override |
| protected Command createAddCommand(EditingDomain domain, EObject owner, |
| EStructuralFeature feature, Collection<?> collection, int index) { |
| final Collection identifiableCollection = new ArrayList(); |
| for (Object value : collection) { |
| |
| Object temp = value; |
| if (value instanceof IFile) { |
| // Yes |
| final IFile iFile = (IFile) value; |
| final URI uri = URI.createFileURI(iFile.getLocation() |
| .toString()); |
| final Identifiable identifable = Utility.getIdentifiable(uri); |
| identifiableCollection.add(identifable); |
| temp = identifable; |
| } // if IFile |
| |
| else if (value instanceof String) { |
| // Yes |
| final String uriString = (String) value; |
| try { |
| final URI uri = URI.createURI(uriString); |
| final Identifiable identifable = Utility |
| .getIdentifiable(uri); |
| temp = identifable; |
| } catch (Exception e) { |
| // Ignore it |
| } |
| } // if String |
| |
| if (temp instanceof Identifiable) { |
| identifiableCollection.add(temp); |
| } |
| } // for each Object |
| |
| return super.createAddCommand(domain, owner, feature, |
| identifiableCollection, index); |
| } // createAddCommand |
| |
| @Override |
| protected Command createCreateChildCommand(EditingDomain domain, |
| EObject owner, EStructuralFeature feature, Object value, int index, |
| Collection<?> collection) { |
| |
| return new CreateChildCommand(domain,owner,feature,value,index,collection,this) { |
| |
| @Override |
| protected Command createCommand() { |
| |
| Command retValue = null; |
| |
| final Command createChildCommand = super.createCommand(); |
| |
| final Resource parentResource = owner.eResource(); |
| // Are we creating a Model or a Graph? |
| if (parentResource != null && (child instanceof Model || child instanceof Graph)) { |
| // Yes |
| final EObject temp = (EObject) child; |
| // Does the child have a resource already? |
| if (temp.eResource() == null) { |
| // No |
| final Command addCommand = new AddCommand(domain, |
| parentResource.getContents(), temp); |
| |
| final CompoundCommand compoundCommand = new CompoundCommand( |
| 0, createChildCommand.getLabel(), |
| createChildCommand.getDescription()); |
| compoundCommand.append(createChildCommand); |
| compoundCommand.append(addCommand); |
| retValue = compoundCommand; |
| } // if Model does not have a resource |
| } // if Model |
| else { |
| retValue = createChildCommand; |
| } |
| |
| return retValue; |
| } // createCommand |
| |
| }; // CreateChildCommand |
| |
| } // createCreateChildCommand |
| |
| /** |
| * @see org.eclipse.emf.edit.provider.ItemProviderAdapter#isWrappingNeeded(java.lang.Object) |
| */ |
| @Override |
| protected boolean isWrappingNeeded(Object object) { |
| // return super.isWrappingNeeded(object); |
| // We return true so that non-containment references are wrapped. This |
| // enables the delete command in the editor's context menu. |
| return true; |
| } // isWrappingNeeded |
| |
| /** |
| * Return the resource locator for this item provider's resources. |
| * <!-- begin-user-doc --> |
| * <!-- end-user-doc --> |
| * @generated |
| */ |
| @Override |
| public ResourceLocator getResourceLocator() { |
| return CoreEditPlugin.INSTANCE; |
| } |
| |
| } |
