diff options
Diffstat (limited to 'plugins/views/properties/org.eclipse.papyrus.views.properties.runtime/src/org/eclipse/papyrus/properties/runtime/modelhandler/emf/EMFFeatureModelHandler.java')
| -rw-r--r-- | plugins/views/properties/org.eclipse.papyrus.views.properties.runtime/src/org/eclipse/papyrus/properties/runtime/modelhandler/emf/EMFFeatureModelHandler.java | 1004 |
1 files changed, 1004 insertions, 0 deletions
diff --git a/plugins/views/properties/org.eclipse.papyrus.views.properties.runtime/src/org/eclipse/papyrus/properties/runtime/modelhandler/emf/EMFFeatureModelHandler.java b/plugins/views/properties/org.eclipse.papyrus.views.properties.runtime/src/org/eclipse/papyrus/properties/runtime/modelhandler/emf/EMFFeatureModelHandler.java new file mode 100644 index 00000000000..853da8ae2d2 --- /dev/null +++ b/plugins/views/properties/org.eclipse.papyrus.views.properties.runtime/src/org/eclipse/papyrus/properties/runtime/modelhandler/emf/EMFFeatureModelHandler.java @@ -0,0 +1,1004 @@ +/*****************************************************************************
+ * Copyright (c) 2010 CEA LIST.
+ *
+ * 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:
+ * Remi Schnekenburger (CEA LIST) remi.schnekenburger@cea.fr - Initial API and implementation
+ * Vincent Lorenzo (CEA-LIST) vincent.lorenzo@cea.fr
+ *****************************************************************************/
+package org.eclipse.papyrus.properties.runtime.modelhandler.emf;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import org.eclipse.core.commands.operations.IUndoableOperation;
+import org.eclipse.emf.common.notify.AdapterFactory;
+import org.eclipse.emf.common.notify.Notification;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.ecore.EReference;
+import org.eclipse.emf.ecore.EStructuralFeature;
+import org.eclipse.emf.ecore.impl.BasicEObjectImpl;
+import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
+import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
+import org.eclipse.emf.edit.provider.IItemPropertySource;
+import org.eclipse.emf.transaction.TransactionalEditingDomain;
+import org.eclipse.gmf.runtime.common.core.command.ICommand;
+import org.eclipse.gmf.runtime.emf.commands.core.command.CompositeTransactionalCommand;
+import org.eclipse.gmf.runtime.emf.type.core.requests.SetRequest;
+import org.eclipse.papyrus.properties.runtime.Activator;
+import org.eclipse.papyrus.properties.runtime.controller.EMFPropertyEditorController;
+import org.eclipse.papyrus.properties.runtime.propertyeditor.descriptor.IPropertyEditorDescriptor;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.widgets.Composite;
+
+
+/**
+ * Abstract class for EMF Model handlers
+ */
+public abstract class EMFFeatureModelHandler implements IEMFModelHandler {
+
+ /** name of the feature to edit */
+ private final String featureName;
+
+ /** factory used by EMF objects */
+ protected AdapterFactory factory = new ComposedAdapterFactory(ComposedAdapterFactory.Descriptor.Registry.INSTANCE);
+
+ /** value of unset new value index */
+ public static final int NEW_VALUE_NOT_SET_INDEX = -2;
+
+ /** value of single value property */
+ public static final int SINGLE_VALUE_PROPERTY_INDEX = -1;
+
+ /**
+ * Creates a new EMFFeatureModelHandler.
+ *
+ * @param featureName
+ * the name of the feature to edit
+ */
+ public EMFFeatureModelHandler(String featureName) {
+ this.featureName = featureName;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public Object getValueToEdit(EObject objectToEdit) {
+ EStructuralFeature featureToEdit = getFeatureByName(objectToEdit);
+ if(featureToEdit == null) {
+ return null;
+ }
+ return objectToEdit.eGet(featureToEdit);
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public abstract void setValueInModel(EObject objectToEdit, Object newValue);
+
+ /**
+ * {@inheritDoc}
+ */
+ public abstract void completeEditorDescriptor(IPropertyEditorDescriptor descriptor, List<? extends EObject> objectToEdit);
+
+ /**
+ * Returns the name of the feature to edit
+ *
+ * @return the name of the feature to edit
+ */
+ public String getFeatureName() {
+ return featureName;
+ }
+
+ /**
+ * Retrieve the main {@link EStructuralFeature} of this model handler
+ *
+ * @param objectToEdit
+ * the object being edited
+ * @return the feature found <code>null</code> if not found
+ */
+ public EStructuralFeature getFeatureByName(EObject objectToEdit) {
+ return EMFUtils.getFeatureByName(objectToEdit, featureName);
+ }
+
+ /**
+ * checks if the feature is changeable
+ *
+ * @param objectsToEdit
+ * the list of objects to edit
+ * @return <code>true</code> if the feature is changeable
+ */
+ public boolean isChangeable(List<? extends EObject> objectsToEdit) {
+ if(objectsToEdit.size() < 1) {
+ return false;
+ }
+ // retrieve the feature
+ EStructuralFeature feature = getFeatureByName(objectsToEdit.get(0));
+ return (feature != null) ? feature.isChangeable() : false;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public String getText() {
+ return "EMF Handler \"" + getId() + "\" -> " + getFeatureName(); //$NON-NLS-1$ //$NON-NLS-2$
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public Image getImage() {
+ return Activator.getImage("/icons/ModelHandler.gif"); //$NON-NLS-1$
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public IEMFModelHandlerState createState(boolean readOnly) {
+ return new EMFFeatureModelHandlerState(this, readOnly);
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public Object getAvailableValues(EObject eObject) {
+ EClass eClass = eObject.eClass();
+ if(eClass == null) {
+ Activator.log.debug("problems during initialization, looking for availables values"); //$NON-NLS-1$
+ return null;
+ }
+ EStructuralFeature feature = getFeatureByName(eObject);
+ if(!(feature instanceof EReference)) {
+ Activator.log.debug("feature is not a reference, looking for availables values: " + feature); //$NON-NLS-1$
+ return null;
+ }
+
+ IItemPropertySource itemPropertySource = (IItemPropertySource)factory.adapt(eObject, IItemPropertySource.class);
+ if(itemPropertySource == null) {
+ Activator.log.debug("impossible to find item Property source for " + eObject); //$NON-NLS-1$
+ return null;
+ }
+ IItemPropertyDescriptor itemPropertyDescriptor = itemPropertySource.getPropertyDescriptor(eObject, feature);
+ if(itemPropertyDescriptor == null) {
+ Activator.log.debug("impossible to find item Property descriptor for " + eObject + " and " + feature); //$NON-NLS-1$ //$NON-NLS-2$
+ return null;
+ }
+ return itemPropertyDescriptor.getChoiceOfValues(eObject);
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @SuppressWarnings("unchecked")
+ public void handleNotifyChange(Notification notification, List<? extends EObject> objects, EMFPropertyEditorController adapter) {
+ // if one element is added to the feature, should also add this as a listener
+ // if one element is removed from the feature, should also remove this as a listener
+ // in other case, except removing adapters, should refresh
+ Object notificationFeature = notification.getFeature();
+ switch(notification.getEventType()) {
+ case Notification.ADD:
+ // check which feature has been modified
+ for(EObject eObject : objects) {
+ EStructuralFeature feature = getFeatureByName(eObject);
+ if(notificationFeature.equals(feature)) {
+ Object newValue = notification.getNewValue();
+ if(newValue instanceof EObject) {
+ ((EObject)newValue).eAdapters().add(adapter);
+ }
+ // refresh the editors
+ adapter.refreshDisplay();
+ }
+ }
+ break;
+ case Notification.ADD_MANY:
+ // check which feature has been modified
+ for(EObject eObject : objects) {
+ EStructuralFeature feature = getFeatureByName(eObject);
+ if(notificationFeature.equals(feature)) {
+ for(Object newValue : ((List<Object>)notification.getNewValue())) {
+ if(newValue instanceof EObject) {
+ ((EObject)newValue).eAdapters().add(adapter);
+ }
+ }
+ // refresh the editors
+ adapter.refreshDisplay();
+ }
+ }
+ break;
+
+ case Notification.REMOVE:
+ // check which feature has been modified
+ for(EObject eObject : objects) {
+ EStructuralFeature feature = getFeatureByName(eObject);
+ if(notificationFeature.equals(feature)) {
+ Object oldValue = notification.getOldValue();
+ if(oldValue instanceof EObject) {
+ ((EObject)oldValue).eAdapters().remove(this);
+ }
+
+ // refresh the editors
+ adapter.refreshDisplay();
+ }
+ }
+ break;
+
+ case Notification.REMOVE_MANY:
+ for(EObject eObject : objects) {
+ EStructuralFeature feature = getFeatureByName(eObject);
+ if(notificationFeature.equals(feature)) {
+ for(Object oldValue : ((List<Object>)notification.getOldValue())) {
+ if(oldValue instanceof EObject) {
+ ((EObject)oldValue).eAdapters().add(adapter);
+ }
+ }
+ // refresh the editors
+ adapter.refreshDisplay();
+ }
+ }
+ break;
+ case Notification.SET:
+ case Notification.UNSET:
+ adapter.refreshDisplay();
+ break;
+ }
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public void addListenersToModel(List<? extends EObject> objectsToEdit, EMFPropertyEditorController controller) {
+ for(EObject object : objectsToEdit) {
+ object.eAdapters().add(controller);
+ }
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public void removeListenersFromModel(List<? extends EObject> objectsToEdit, EMFPropertyEditorController controller) {
+ for(EObject object : objectsToEdit) {
+ object.eAdapters().remove(controller);
+ }
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public abstract List<IUndoableOperation> getCreateValueOperations(List<? extends EObject> objectsToEdit, Composite parent);
+
+ /**
+ * {@inheritDoc}
+ */
+ public boolean canCreateValueOperations(List<? extends EObject> objectsToEdit) {
+ for(EObject objectToEdit : objectsToEdit) {
+ EStructuralFeature featureToEdit = getFeatureByName(objectToEdit);
+ if(featureToEdit == null) {
+ return false;
+ }
+
+ if(!featureToEdit.isChangeable()) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public IUndoableOperation getDeleteValueOperation(List<? extends EObject> objectsToEdit, Composite parent, List<Integer> indexes) {
+ TransactionalEditingDomain editingDomain = EMFUtils.getTransactionalEditingDomain(objectsToEdit);
+ if(editingDomain == null) {
+ Activator.log.error("Impossible during creation operation to find the editing domain for objects: " + objectsToEdit, null); //$NON-NLS-1$
+ return null;
+ }
+ CompositeTransactionalCommand command = new CompositeTransactionalCommand(editingDomain, "Edit Value"); //$NON-NLS-1$
+ for(EObject objectToEdit : objectsToEdit) {
+ EStructuralFeature featureToEdit = getFeatureByName(objectToEdit);
+ if(featureToEdit == null) {
+ return null;
+ }
+ // DeleteStringValueOperation operation = new DeleteStringValueOperation(editingDomain, "Edit Value", objectToEdit, indexes, parent);
+ IUndoableOperation operation = getDeleteStringValueOperation(editingDomain, "Edit Value", objectToEdit, indexes, parent); //$NON-NLS-1$
+ if(operation != null) {
+ command.add(operation);
+ }
+ }
+ return command.reduce();
+ }
+
+ /**
+ * Returns the command to remove String values
+ *
+ * @param editingDomain
+ * the editing domain
+ * @param string
+ * the name of the command
+ * @param objectToEdit
+ * the object to edit
+ * @param indexes
+ * the index of the element to remove
+ * @param parent
+ * the composite parent
+ * @return
+ * the command to remove String values
+ */
+ protected IUndoableOperation getDeleteStringValueOperation(TransactionalEditingDomain editingDomain, String string, EObject objectToEdit, List<Integer> indexes, Composite parent) {
+ CompositeTransactionalCommand command = new CompositeTransactionalCommand(editingDomain, string);
+ // get the feature to modify
+ EStructuralFeature featureToEdit = getFeatureByName(objectToEdit);
+ if(featureToEdit == null) {
+ return null;
+ }
+ Object newValue;
+ if(featureToEdit.getUpperBound() == 1) {
+ newValue = featureToEdit.getDefaultValue();
+ } else {
+ @SuppressWarnings("unchecked")
+ List<Object> values = new ArrayList<Object>((List<Object>)getValueToEdit(objectToEdit));
+ for(int index : indexes) {
+ values.remove(index);
+ }
+ newValue = values;
+ }
+ SetRequest[] requests = getSetRequest(editingDomain, objectToEdit, newValue);
+ org.eclipse.papyrus.service.edit.service.IElementEditService provider = org.eclipse.papyrus.service.edit.service.ElementEditServiceUtils.getCommandProvider(objectToEdit);
+ if(provider != null) {
+
+ ICommand editCommand = null;
+ for(SetRequest current : requests) {
+ editCommand = provider.getEditCommand(current);
+
+ if(editCommand != null && editCommand.canExecute()) {
+ command.add(editCommand);
+ }
+ }
+ }
+ return command;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public boolean canCreateDeleteValueOperation(List<? extends EObject> objectsToEdit) {
+ return false;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public IUndoableOperation getEditValueOperation(List<? extends EObject> objectsToEdit, int index, Composite parent, Object value) {
+ TransactionalEditingDomain editingDomain = EMFUtils.getTransactionalEditingDomain(objectsToEdit);
+ if(editingDomain == null) {
+ Activator.log.error("Impossible during creation operation to find the editing domain for objects: " + objectsToEdit, null); //$NON-NLS-1$
+ return null;
+ }
+ CompositeTransactionalCommand command = new CompositeTransactionalCommand(editingDomain, "Edit Value"); //$NON-NLS-1$
+ for(EObject objectToEdit : objectsToEdit) {
+ EStructuralFeature featureToEdit = getFeatureByName(objectToEdit);
+ if(featureToEdit == null) {
+ return null;
+ }
+ // EditStringValueOperation operation = new EditStringValueOperation(editingDomain, "Edit Value", objectToEdit, index, parent, value);
+ IUndoableOperation operation = getEditStringValueOperation(editingDomain, "Edit Value", objectToEdit, index, parent, value); //$NON-NLS-1$
+ if(operation != null) {
+ command.add(operation);
+ }
+ }
+ return command.reduce();
+ }
+
+ /**
+ * Returns the Operation to edit the String value
+ *
+ * @param editingDomain
+ * the editing domain
+ * @param string
+ * the name of the command
+ * @param objectToEdit
+ * the object to edit
+ * @param index
+ * the index of the String to edit
+ * @param parent
+ * the composite parent
+ * @param value
+ * the value to set
+ * @return
+ * the Operation to edit the String value
+ */
+ protected IUndoableOperation getEditStringValueOperation(TransactionalEditingDomain editingDomain, String string, EObject objectToEdit, int index, Composite parent, Object value) {
+ CompositeTransactionalCommand command = new CompositeTransactionalCommand(editingDomain, string);
+ // get the feature to modify
+ EStructuralFeature featureToEdit = getFeatureByName(objectToEdit);
+ if(featureToEdit == null) {
+ return null;
+ }
+ Object newValue;
+ if(featureToEdit.getUpperBound() == 1) {
+ newValue = value;
+ } else {
+ @SuppressWarnings("unchecked")
+ List<Object> values = new ArrayList<Object>((List<Object>)getValueToEdit(objectToEdit));
+ values.set(index, value);
+ newValue = values;
+ }
+ SetRequest[] requests = getSetRequest(editingDomain, objectToEdit, newValue);
+ org.eclipse.papyrus.service.edit.service.IElementEditService provider = org.eclipse.papyrus.service.edit.service.ElementEditServiceUtils.getCommandProvider(objectToEdit);
+ if(provider != null) {
+
+ ICommand editCommand = null;
+ for(SetRequest current : requests) {
+ editCommand = provider.getEditCommand(current);
+
+ if(editCommand != null && editCommand.canExecute()) {
+ command.add(editCommand);
+ }
+ }
+ }
+ return command;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public boolean canCreateEditValueOperation(List<? extends EObject> objectsToEdit) {
+ // try to retrieve editor for this property
+ // if one exists, return yes
+ // or try to open an inline-editor for simple values
+ return true;
+ }
+
+ /**
+ * Returns the feature ID
+ *
+ * @param feature
+ * the feature
+ * @param elementToEdit
+ * the element to edit
+ * @return
+ * the feature ID
+ */
+ protected int getFeatureID(EStructuralFeature feature, BasicEObjectImpl elementToEdit) {
+ return (elementToEdit).eDerivedStructuralFeatureID(feature);
+ }
+
+ /**
+ * Returns the structural feature of elementToEdit corresponding to this ID
+ *
+ * @param ID
+ * the ID of the feature
+ * @param elementToEdit
+ * the element to edit
+ * @return
+ * the structural feature of elementToEdit corresponding to this ID
+ */
+ protected EStructuralFeature getStructuralFeature(int ID, EObject elementToEdit) {
+ if(elementToEdit instanceof BasicEObjectImpl) {
+ EClass eClass = elementToEdit.eClass();
+ return eClass.getEStructuralFeature(ID);
+ }
+ return null;
+ }
+
+ // /**
+ // * Operation to edit a String value for the controlled property
+ // */
+ // protected class EditStringValueOperation extends AbstractTransactionalCommand {
+ //
+ // /** object to edit */
+ // protected final EObject objectToEdit;
+ //
+ // /** index of the value to edit */
+ // protected final int index;
+ //
+ // /** composite parent for the editor */
+ // protected final Composite parent;
+ //
+ // /** value to set */
+ // protected final Object value;
+ //
+ // /**
+ // * Initializes me with the editing domain, a label, transaction options, and
+ // * a list of {@link IFile}s that anticipate modifying when I am executed,
+ // * undone or redone.
+ // *
+ // * @param domain
+ // * the editing domain used to modify the model
+ // * @param label
+ // * my user-readable label, should never be <code>null</code>.
+ // * @param objectToEdit
+ // * object to edit
+ // * @param index
+ // * the index of the value to edit
+ // * @param parent
+ // * the graphical composite element
+ // * @param value
+ // */
+ // public EditStringValueOperation(TransactionalEditingDomain domain, String label, EObject objectToEdit, int index, Composite parent, Object value) {
+ // super(domain, (label == null) ? "" : label, null);
+ // this.objectToEdit = objectToEdit;
+ // this.index = index;
+ // this.parent = parent;
+ // this.value = value;
+ // }
+ //
+ // /**
+ // * {@inheritDoc}
+ // */
+ // @Override
+ // protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
+ // // get the feature to modify
+ // EStructuralFeature featureToEdit = getFeatureByName(objectToEdit);
+ // if(featureToEdit == null) {
+ // return CommandResult.newErrorCommandResult("Impossible to find the feature " + getFeatureName());
+ // }
+ // Object newValue;
+ // if(featureToEdit.getUpperBound() == 1) {
+ // newValue = value;
+ // } else {
+ // @SuppressWarnings("unchecked")
+ // List<Object> values = new ArrayList<Object>((List<Object>)getValueToEdit(objectToEdit));
+ // values.set(index, value);
+ // newValue = values;
+ // }
+ // setValueInModel(objectToEdit, newValue);
+ // return CommandResult.newOKCommandResult();
+ // }
+ // }
+
+ // /**
+ // * Operation to edit a String value for the controlled property
+ // */
+ // protected class DeleteStringValueOperation extends AbstractTransactionalCommand {
+ //
+ // /** object to edit */
+ // protected final EObject objectToEdit;
+ //
+ // /** indexes of the value to delete */
+ // protected final List<Integer> indexes;
+ //
+ // /** composite parent for the editor */
+ // protected final Composite parent;
+ //
+ // /**
+ // * Initializes me with the editing domain, a label, transaction options, and
+ // * a list of {@link IFile}s that anticipate modifying when I am executed,
+ // * undone or redone.
+ // *
+ // * @param domain
+ // * the editing domain used to modify the model
+ // * @param label
+ // * my user-readable label, should never be <code>null</code>.
+ // * @param objectToEdit
+ // * object to edit
+ // * @param indexes
+ // * the indexes of the values to remove
+ // * @param parent
+ // * the graphical composite element
+ // */
+ // public DeleteStringValueOperation(TransactionalEditingDomain domain, String label, EObject objectToEdit, List<Integer> indexes, Composite parent) {
+ // super(domain, (label == null) ? "" : label, null);
+ // this.objectToEdit = objectToEdit;
+ // this.indexes = indexes;
+ // this.parent = parent;
+ // }
+ //
+ // /**
+ // * {@inheritDoc}
+ // */
+ // @Override
+ // protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
+ // // get the feature to modify
+ // EStructuralFeature featureToEdit = getFeatureByName(objectToEdit);
+ // if(featureToEdit == null) {
+ // return CommandResult.newErrorCommandResult("Impossible to find the feature " + getFeatureName());
+ // }
+ // Object newValue;
+ // if(featureToEdit.getUpperBound() == 1) {
+ // objectToEdit.eUnset(featureToEdit);
+ // } else {
+ // @SuppressWarnings("unchecked")
+ // List<Object> values = new ArrayList<Object>((List<Object>)getValueToEdit(objectToEdit));
+ // for(int index : indexes) {
+ // values.remove(index);
+ // }
+ // newValue = values;
+ // setValueInModel(objectToEdit, newValue);
+ // }
+ // return CommandResult.newOKCommandResult();
+ // }
+ // }
+
+ /**
+ * {@inheritDoc}
+ */
+ public IUndoableOperation getMoveValueOperation(List<? extends EObject> objectsToEdit, List<Integer> indexes, Composite parent, int delta) {
+ TransactionalEditingDomain editingDomain = EMFUtils.getTransactionalEditingDomain(objectsToEdit);
+ if(editingDomain == null) {
+ Activator.log.error("Impossible during move operation to find the editing domain for objects: " + objectsToEdit, null); //$NON-NLS-1$
+ return null;
+ }
+ CompositeTransactionalCommand command = new CompositeTransactionalCommand(editingDomain, "Move Values"); //$NON-NLS-1$
+ for(EObject objectToEdit : objectsToEdit) {
+ EStructuralFeature featureToEdit = getFeatureByName(objectToEdit);
+ if(featureToEdit == null) {
+ return null;
+ }
+ // MoveStringValueOperation operation = new MoveStringValueOperation(editingDomain, "Move Value", objectToEdit, indexes, parent, delta);
+ IUndoableOperation operation = getMoveStringValueOperation(editingDomain, "Move Value", objectToEdit, indexes, parent, delta); //$NON-NLS-1$
+ if(operation != null) {
+ command.add(operation);
+ }
+ }
+ return command.reduce();
+ }
+
+ /**
+ * Returns the command to move String values
+ *
+ * @param editingDomain
+ * the editing domain
+ * @param string
+ * the name of the command
+ * @param objectToEdit
+ * the object to edit
+ * @param indexes
+ * the index of the elements to move
+ * @param parent
+ * the composite parent
+ * @param delta
+ * the delta
+ * @return
+ * the command to move String values
+ */
+ protected IUndoableOperation getMoveStringValueOperation(TransactionalEditingDomain editingDomain, String string, EObject objectToEdit, List<Integer> indexes, Composite parent, int delta) {
+ CompositeTransactionalCommand command = new CompositeTransactionalCommand(editingDomain, string);
+ if(canMoveStringValue(objectToEdit, indexes, delta)) {
+
+ EClass eClass = objectToEdit.eClass();
+ if(eClass == null) {
+ return null;
+ }
+ // retrieve the current value (should be a list)
+ EStructuralFeature feature = getFeatureByName(objectToEdit);
+ Object currentValue = objectToEdit.eGet(feature);
+ if(currentValue instanceof List<?>) {
+ @SuppressWarnings("unchecked")
+ List<Object> values = (List<Object>)currentValue;
+ List<Object> copy = new ArrayList<Object>(values);
+ // make modification in copy list
+ // check indices
+ int min = copy.size();
+ int max = 0;
+
+ for(int index : indexes) {
+ if(index < min) {
+ min = index;
+ }
+ if(index > max) {
+ max = index;
+ }
+ }
+
+ // check that min and max are in the bounds of the list, with the
+ // delta applied
+ min += delta;
+ max += delta;
+ // check the bounds of the list
+ if(min < 0) {
+ Activator.log.debug("Trying to move up the elements, with a move which will cause an IndexOutOfBound exception"); //$NON-NLS-1$
+ return null;
+ } else if(max >= copy.size()) {
+ Activator.log.debug("Trying to move down the elements, with a move which will cause an IndexOutOfBound exception"); //$NON-NLS-1$
+ return null;
+ }
+
+ // now, do the move in the copy
+ if(delta < 0) {
+ moveUpElementsInCollection(copy, indexes, delta);
+ } else {
+ moveDownElementsOperation(copy, indexes, delta);
+ }
+
+ // setValueInModel(objectToEdit, copy);
+ SetRequest[] requests = getSetRequest(editingDomain, objectToEdit, copy);
+ if(requests != null) {
+
+ org.eclipse.papyrus.service.edit.service.IElementEditService provider = org.eclipse.papyrus.service.edit.service.ElementEditServiceUtils.getCommandProvider(objectToEdit);
+ if(provider != null) {
+
+ ICommand editCommand = null;
+ for(SetRequest current : requests) {
+ editCommand = provider.getEditCommand(current);
+
+ if(editCommand != null && editCommand.canExecute()) {
+ command.add(editCommand);
+ }
+ }
+ }
+ }
+ }
+ }
+ return command;
+ }
+
+ /**
+ * Tests if we can move values
+ *
+ * @param objectToEdit
+ * the object to edit
+ * @param indexes
+ * the indexes
+ * @param delta
+ * the delta
+ * @return
+ * <code>true</code> if we can move the values <code>false</code> if not
+ */
+ protected boolean canMoveStringValue(EObject objectToEdit, List<Integer> indexes, int delta) {
+ EClass eClass = objectToEdit.eClass();
+ if(eClass == null) {
+ return false;
+ }
+ // retrieve the current value (should be a list)
+ EStructuralFeature feature = getFeatureByName(objectToEdit);
+ Object currentValue = objectToEdit.eGet(feature);
+ if(currentValue instanceof List<?>) {
+ @SuppressWarnings("unchecked")
+ List<Object> values = (List<Object>)currentValue;
+ List<Object> copy = new ArrayList<Object>(values);
+ // make modification in copy list
+ // check indices
+ int min = copy.size();
+ int max = 0;
+
+ for(int index : indexes) {
+ if(index < min) {
+ min = index;
+ }
+ if(index > max) {
+ max = index;
+ }
+ }
+
+ // check that min and max are in the bounds of the list, with the
+ // delta applied
+ min += delta;
+ max += delta;
+ // check the bounds of the list
+ if(min < 0) {
+ return false;
+ } else if(max >= copy.size()) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public boolean canCreateMoveValueOperation(List<? extends EObject> objectsToEdit, List<Integer> indexes, Composite parent, int delta) {
+ TransactionalEditingDomain editingDomain = EMFUtils.getTransactionalEditingDomain(objectsToEdit);
+ if(editingDomain == null) {
+ Activator.log.error("Impossible during move operation to find the editing domain for objects: " + objectsToEdit, null); //$NON-NLS-1$
+ return false;
+ }
+ CompositeTransactionalCommand command = new CompositeTransactionalCommand(editingDomain, "Move Values"); //$NON-NLS-1$
+ for(EObject objectToEdit : objectsToEdit) {
+ EStructuralFeature featureToEdit = getFeatureByName(objectToEdit);
+ if(featureToEdit == null) {
+ return false;
+ }
+ //MoveStringValueOperation operation = new MoveStringValueOperation(editingDomain, "Move Value", objectToEdit, indexes, parent, delta);
+ IUndoableOperation operation = getMoveStringValueOperation(editingDomain, "Move Value", objectToEdit, indexes, parent, delta); //$NON-NLS-1$
+ if(operation != null) {
+ command.add(operation);
+ }
+ }
+ return command.canExecute();
+ }
+
+ /**
+ * Moves the element in the specified list, when the elements are moved down
+ * in the list
+ *
+ * @param modifiedElements
+ * list of elements modified
+ * @param indexes
+ * list of indexes of objects to move
+ * @param move
+ * delta for the move. should be positive integer
+ */
+ protected void moveDownElementsOperation(List<Object> modifiedElements, List<Integer> indexes, int move) {
+ // if moving down, starting from the end to move elements, assuming they
+ // are in the increasing order by default
+ Collections.sort(indexes);
+ Collections.reverse(indexes);
+ for(int index : indexes) {
+ Object objectToMove = modifiedElements.get(index);
+ // remove element
+ modifiedElements.remove(index);
+ // change index
+ if(index == -1) {
+ return;
+ }
+ index += move;
+ // add the element to the new index
+ modifiedElements.add(index, objectToMove);
+ }
+ }
+
+ /**
+ * Moves the element in the specified list, when the elements are moved up
+ * in the list
+ *
+ * @param modifiedElements
+ * list of elements modified
+ * @param indexes
+ * list of indexes of objects to move
+ * @param move
+ * delta for the move. should be positive integer
+ */
+ protected void moveUpElementsInCollection(List<Object> modifiedElements, List<Integer> indexes, int move) {
+ Collections.sort(indexes);
+ for(int index : indexes) {
+ // retrieve index
+ Object objectToMove = modifiedElements.get(index);
+ // remove element
+ modifiedElements.remove(index);
+ // change index
+ if(index == -1) {
+ return;
+ }
+ index += move;
+ // add the element to the new index
+ modifiedElements.add(index, objectToMove);
+ }
+ }
+
+ // /**
+ // * Operation to edit a String value for the controlled property
+ // */
+ // protected class MoveStringValueOperation extends AbstractTransactionalCommand {
+ //
+ // /** object to edit */
+ // protected final EObject objectToEdit;
+ //
+ // /** indexes of the value to delete */
+ // protected final List<Integer> indexes;
+ //
+ // /** composite parent for the editor */
+ // protected final Composite parent;
+ //
+ // /** delta applied to all indexes */
+ // protected final int delta;
+ //
+ // /**
+ // * Initializes me with the editing domain, a label, transaction options, and
+ // * a list of {@link IFile}s that anticipate modifying when I am executed,
+ // * undone or redone.
+ // *
+ // * @param domain
+ // * the editing domain used to modify the model
+ // * @param label
+ // * my user-readable label, should never be <code>null</code>.
+ // * @param objectToEdit
+ // * object to edit
+ // * @param indexes
+ // * the indexes of the values to remove
+ // * @param parent
+ // * the graphical composite element
+ // * @param delta
+ // * the delta applied to all indexes
+ // */
+ // public MoveStringValueOperation(TransactionalEditingDomain domain, String label, EObject objectToEdit, List<Integer> indexes, Composite parent, int delta) {
+ // super(domain, (label == null) ? "" : label, null);
+ // this.objectToEdit = objectToEdit;
+ // this.indexes = indexes;
+ // this.parent = parent;
+ // this.delta = delta;
+ // }
+ //
+ // @Override
+ // public boolean canExecute() {
+ // EClass eClass = objectToEdit.eClass();
+ // if(eClass == null) {
+ // return false;
+ // }
+ // // retrieve the current value (should be a list)
+ // EStructuralFeature feature = getFeatureByName(objectToEdit);
+ // Object currentValue = objectToEdit.eGet(feature);
+ // if(currentValue instanceof List<?>) {
+ // @SuppressWarnings("unchecked")
+ // List<Object> values = (List<Object>)currentValue;
+ // List<Object> copy = new ArrayList<Object>(values);
+ // // make modification in copy list
+ // // check indices
+ // int min = copy.size();
+ // int max = 0;
+ //
+ // for(int index : indexes) {
+ // if(index < min) {
+ // min = index;
+ // }
+ // if(index > max) {
+ // max = index;
+ // }
+ // }
+ //
+ // // check that min and max are in the bounds of the list, with the
+ // // delta applied
+ // min += delta;
+ // max += delta;
+ // // check the bounds of the list
+ // if(min < 0) {
+ // return false;
+ // } else if(max >= copy.size()) {
+ // return false;
+ // }
+ // }
+ // return true;
+ // }
+ //
+ // /**
+ // * {@inheritDoc}
+ // */
+ // @Override
+ // protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
+ // EClass eClass = objectToEdit.eClass();
+ // if(eClass == null) {
+ // return CommandResult.newErrorCommandResult("Impossible to find the EClass for object: " + objectToEdit);
+ // }
+ // // retrieve the current value (should be a list)
+ // EStructuralFeature feature = getFeatureByName(objectToEdit);
+ // Object currentValue = objectToEdit.eGet(feature);
+ // if(currentValue instanceof List<?>) {
+ // @SuppressWarnings("unchecked")
+ // List<Object> values = (List<Object>)currentValue;
+ // List<Object> copy = new ArrayList<Object>(values);
+ // // make modification in copy list
+ // // check indices
+ // int min = copy.size();
+ // int max = 0;
+ //
+ // for(int index : indexes) {
+ // if(index < min) {
+ // min = index;
+ // }
+ // if(index > max) {
+ // max = index;
+ // }
+ // }
+ //
+ // // check that min and max are in the bounds of the list, with the
+ // // delta applied
+ // min += delta;
+ // max += delta;
+ // // check the bounds of the list
+ // if(min < 0) {
+ // Activator.log.debug("Trying to move up the elements, with a move which will cause an IndexOutOfBound exception");
+ // return CommandResult.newErrorCommandResult("Trying to move up the elements, with a move which will cause an IndexOutOfBound exception");
+ // } else if(max >= copy.size()) {
+ // Activator.log.debug("Trying to move down the elements, with a move which will cause an IndexOutOfBound exception");
+ // return CommandResult.newErrorCommandResult("Trying to move down the elements, with a move which will cause an IndexOutOfBound exception");
+ // }
+ //
+ // // now, do the move in the copy
+ // if(delta < 0) {
+ // moveUpElementsInCollection(copy, indexes, delta);
+ // } else {
+ // moveDownElementsOperation(copy, indexes, delta);
+ // }
+ //
+ // setValueInModel(objectToEdit, copy);
+ // }
+ //
+ // return CommandResult.newOKCommandResult();
+ // }
+ // }
+}
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