bundles/core/org.eclipse.apogy.core.invocator.ui/src/org/eclipse/apogy/core/invocator/ui/composites/OperationCallsListComposite.java - gerrit/apogy/apogy - Git at Google

 /*******************************************************************************
  * Copyright (c) 2018 Agence spatiale canadienne / Canadian Space Agency
  * 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:
  *     Pierre Allard,
  *     Regent L'Archeveque,
  *     Olivier L. Larouche - initial API and implementation
  *
  * SPDX-License-Identifier: EPL-1.0
  *
  *******************************************************************************/
 package org.eclipse.apogy.core.invocator.ui.composites;

 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;

 import org.eclipse.apogy.common.emf.ApogyCommonEMFFactory;
 import org.eclipse.apogy.common.emf.ApogyCommonEMFPackage;
 import org.eclipse.apogy.common.emf.EObjectReference;
 import org.eclipse.apogy.common.emf.FeaturePathAdapter;
 import org.eclipse.apogy.common.emf.impl.FeaturePathAdapterCustomImpl;
 import org.eclipse.apogy.common.emf.transaction.ApogyCommonTransactionFacade;
 import org.eclipse.apogy.core.invocator.ApogyCoreInvocatorFacade;
 import org.eclipse.apogy.core.invocator.ApogyCoreInvocatorPackage;
 import org.eclipse.apogy.core.invocator.OperationCall;
 import org.eclipse.apogy.core.invocator.OperationCallsList;
 import org.eclipse.apogy.core.invocator.ui.wizards.OperationCallWizard;
 import org.eclipse.core.databinding.DataBindingContext;
 import org.eclipse.core.databinding.UpdateValueStrategy;
 import org.eclipse.core.databinding.conversion.Converter;
 import org.eclipse.core.databinding.observable.value.IObservableValue;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.core.runtime.jobs.Job;
 import org.eclipse.emf.common.notify.AdapterFactory;
 import org.eclipse.emf.common.notify.Notification;
 import org.eclipse.emf.common.util.Diagnostic;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.ecore.EStructuralFeature;
 import org.eclipse.emf.ecore.util.Diagnostician;
 import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
 import org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider;
 import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
 import org.eclipse.emf.transaction.util.TransactionUtil;
 import org.eclipse.jface.databinding.swt.WidgetProperties;
 import org.eclipse.jface.databinding.viewers.ViewerProperties;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.ITableLabelProvider;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.TableViewer;
 import org.eclipse.jface.wizard.WizardDialog;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.ScrolledComposite;
 import org.eclipse.swt.events.DisposeEvent;
 import org.eclipse.swt.events.DisposeListener;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Table;
 import org.eclipse.swt.widgets.TableColumn;
 import org.eclipse.swt.widgets.TableItem;

 public class OperationCallsListComposite extends ScrolledComposite {
 	private DataBindingContext m_currentDataBindings;
 	private final ComposedAdapterFactory adapterFactory = new ComposedAdapterFactory(
 			ComposedAdapterFactory.Descriptor.Registry.INSTANCE);

 	private OperationCallsList operationCallsList;
 	private List<FeaturePathAdapter> featurePathAdapters;

 	private TableViewer tableViewer;
 	private Button btnDelete;
 	private Button btnNew;
 	private Button btnInvoke;

 	public OperationCallsListComposite(Composite parent, int style) {
 		super(parent, style);
 		setLayout(new GridLayout(1, true));
 		setExpandHorizontal(true);
 		setExpandVertical(true);
 		addDisposeListener(new DisposeListener() {
 			@Override
 			public void widgetDisposed(DisposeEvent e) {
 				if (OperationCallsListComposite.this.m_currentDataBindings != null) {
 					OperationCallsListComposite.this.m_currentDataBindings.dispose();
 				}

 				if (OperationCallsListComposite.this.operationCallsList != null) {
 					for (FeaturePathAdapter adapter : OperationCallsListComposite.this.featurePathAdapters) {
 						adapter.dispose();
 					}
 				}
 			}
 		});

 		Composite composite = new Composite(this, SWT.NONE);
 		composite.setLayout(new GridLayout(2, false));

 		this.tableViewer = new TableViewer(composite, SWT.BORDER | SWT.FULL_SELECTION);
 		Table table = this.tableViewer.getTable();
 		table.setHeaderVisible(true);
 		table.setLinesVisible(true);
 		table.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 4));
 		this.tableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
 			@Override
 			public void selectionChanged(SelectionChangedEvent event) {
 				newSelection(event.getSelection());
 			}
 		});

 		TableColumn tblclmnName = new TableColumn(table, SWT.NONE);
 		tblclmnName.setText("Name");

 		TableColumn tblclmnFeature = new TableColumn(table, SWT.NONE);
 		tblclmnFeature.setText("Feature");

 		TableColumn tblclmnCommand = new TableColumn(table, SWT.NONE);
 		tblclmnCommand.setText("Command");

 		this.btnInvoke = new Button(composite, SWT.None);
 		this.btnInvoke.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1));
 		this.btnInvoke.setText("Invoke");
 		this.btnInvoke.addSelectionListener(new SelectionAdapter() {
 			@Override
 			public void widgetSelected(SelectionEvent e) {
 				final OperationCall opsCall = (OperationCall) OperationCallsListComposite.this.tableViewer
 						.getStructuredSelection().getFirstElement();
 				Job job = new Job(ApogyCoreInvocatorFacade.INSTANCE.getOperationCallString(opsCall)) {
 					@Override
 					protected IStatus run(IProgressMonitor monitor) {
 						ApogyCoreInvocatorFacade.INSTANCE.exec(opsCall);
 						return Status.OK_STATUS;
 					}
 				};
 				job.schedule();

 			}
 		});

 		Label label = new Label(composite, SWT.SEPARATOR | SWT.HORIZONTAL);
 		label.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1));

 		this.btnNew = new Button(composite, SWT.NONE);
 		this.btnNew.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1));
 		this.btnNew.setText("New");
 		this.btnNew.setEnabled(false);
 		this.btnNew.addSelectionListener(new SelectionAdapter() {
 			@Override
 			public void widgetSelected(SelectionEvent e) {

 				OperationCallWizard newOperationCallWizard = new OperationCallWizard(
 						OperationCallsListComposite.this.operationCallsList) {
 					@Override
 					public boolean performFinish() {
 						getOperationCall().eResource().getResourceSet().getResources()
 								.remove(getOperationCall().eResource());
 						TransactionUtil.disconnectFromEditingDomain(getOperationCall().eResource());

 						/**
 						 * Needs to be executed in a asyncExec because of the databinding and the
 						 * ObservableListContentProvider.
 						 */
 						getDisplay().asyncExec(new Runnable() {
 							@Override
 							public void run() {
 								ApogyCommonTransactionFacade.INSTANCE.basicAdd(
 										OperationCallsListComposite.this.operationCallsList,
 										ApogyCoreInvocatorPackage.Literals.OPERATION_CALL_CONTAINER__OPERATION_CALLS,
 										getOperationCall());
 							}
 						});

 						OperationCallsListComposite.this.tableViewer
 								.setSelection(new StructuredSelection(getOperationCall()));
 						packColumns();
 						return true;
 					}
 				};
 				WizardDialog dialog = new WizardDialog(getShell(), newOperationCallWizard);
 				dialog.open();
 			}
 		});

 		this.btnDelete = new Button(composite, SWT.NONE);
 		this.btnDelete.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false, 1, 1));
 		this.btnDelete.setText("Delete");
 		this.btnDelete.setEnabled(false);
 		this.btnDelete.addSelectionListener(new SelectionAdapter() {
 			@Override
 			public void widgetSelected(SelectionEvent e) {
 				ApogyCommonTransactionFacade.INSTANCE.basicRemove(OperationCallsListComposite.this.operationCallsList,
 						ApogyCoreInvocatorPackage.Literals.OPERATION_CALL_CONTAINER__OPERATION_CALLS,
 						getSelectedOperationCall());
 			}
 		});

 		setContent(composite);
 		setMinSize(composite.computeSize(SWT.DEFAULT, SWT.DEFAULT));

 		this.m_currentDataBindings = initDataBindingsCustom();
 	}

 	/**
 	 * Returns the selected {@link OperationCall}.
 	 *
 	 * @return Reference to the selected {@link OperationCall}.
 	 */
 	public OperationCall getSelectedOperationCall() {
 		return (OperationCall) this.tableViewer.getStructuredSelection().getFirstElement();
 	}

 	/**
 	 * This method is called when a new selection is made in the parentComposite.
 	 *
 	 * @param selection Reference to the selection.
 	 */
 	protected void newSelection(ISelection selection) {
 	}

 	/**
 	 * This methods packs the columns to adjust their widths
 	 */
 	private void packColumns() {
 		if (!this.tableViewer.isBusy()) {
 			getDisplay().asyncExec(new Runnable() {
 				@Override
 				public void run() {
 					for (TableColumn column : OperationCallsListComposite.this.tableViewer.getTable().getColumns()) {
 						column.pack();
 					}
 				}
 			});
 		}
 	}

 	protected void refreshViewer() {
 		if (!this.tableViewer.isBusy()) {
 			getDisplay().asyncExec(new Runnable() {
 				@Override
 				public void run() {
 					OperationCallsListComposite.this.tableViewer.refresh();
 					packColumns();
 				}
 			});
 		}
 	}

 	/**
 	 * Sets the {@link OperationCallsList} in the parentComposite
 	 *
 	 * @param operationCallsList
 	 */
 	public void setOperationCallsList(OperationCallsList operationCallsList) {
 		if (this.operationCallsList != null) {
 			for (FeaturePathAdapter adapter : getFeaturePathAdapters()) {
 				adapter.dispose();
 			}
 		}

 		this.operationCallsList = operationCallsList;

 		if (this.operationCallsList.getOperationCalls() != null) {
 			EObjectReference eObjectReference = ApogyCommonEMFFactory.eINSTANCE.createEObjectReference();
 			eObjectReference.setEObject(operationCallsList);

 			this.tableViewer.setInput(eObjectReference);
 			this.btnNew.setEnabled(true);
 			packColumns();
 		} else {
 			this.tableViewer.setInput(null);
 		}

 		for (FeaturePathAdapter adapter : getFeaturePathAdapters()) {
 			adapter.init(operationCallsList);
 		}
 	}

 	public OperationCallsList getOperationCallsList() {
 		return this.operationCallsList;
 	}

 	/**
 	 * Sets the background colors of the {@link OperationCall}s. If no color is
 	 * specified for an {@link OperationCall}, the color will be set to white.
 	 *
 	 * @param map
 	 */
 	public void setBackgroudColor(Map<OperationCall, Integer> map) {
 		for (TableItem item : this.tableViewer.getTable().getItems()) {
 			Color color = null;
 			if (map.containsKey(item.getData())) {
 				color = getDisplay().getSystemColor(map.get(item.getData()));
 			}

 			if (color == null) {
 				color = getDisplay().getSystemColor(SWT.COLOR_WHITE);
 			}

 			item.setBackground(color);
 		}
 	}

 	private List<FeaturePathAdapter> getFeaturePathAdapters() {
 		if (this.featurePathAdapters == null) {
 			this.featurePathAdapters = new ArrayList<>();
 			this.featurePathAdapters.add(new FeaturePathAdapterCustomImpl() {
 				@Override
 				public void notifyChanged(Notification msg) {
 					refreshViewer();
 				}

 				@Override
 				public List<? extends EStructuralFeature> getFeatureList() {
 					List<EStructuralFeature> featurePath = new ArrayList<EStructuralFeature>();
 					featurePath.add(ApogyCoreInvocatorPackage.Literals.OPERATION_CALL_CONTAINER__OPERATION_CALLS);
 					featurePath.add(ApogyCommonEMFPackage.Literals.NAMED__NAME);
 					return featurePath;
 				}
 			});
 			this.featurePathAdapters.add(new FeaturePathAdapterCustomImpl() {
 				@Override
 				public void notifyChanged(Notification msg) {
 					refreshViewer();
 				}

 				@Override
 				public List<? extends EStructuralFeature> getFeatureList() {
 					List<EStructuralFeature> featurePath = new ArrayList<EStructuralFeature>();
 					featurePath.add(ApogyCoreInvocatorPackage.Literals.OPERATION_CALL_CONTAINER__OPERATION_CALLS);
 					featurePath.add(ApogyCoreInvocatorPackage.Literals.OPERATION_CALL__EOPERATION);
 					return featurePath;
 				}
 			});
 			this.featurePathAdapters.add(new FeaturePathAdapterCustomImpl() {
 				@Override
 				public void notifyChanged(Notification msg) {
 					refreshViewer();
 					OperationCallsListComposite.this.newSelection(null);
 				}

 				@Override
 				public List<? extends EStructuralFeature> getFeatureList() {
 					List<EStructuralFeature> featurePath = new ArrayList<EStructuralFeature>();
 					featurePath.add(ApogyCoreInvocatorPackage.Literals.OPERATION_CALL_CONTAINER__OPERATION_CALLS);
 					featurePath.add(ApogyCoreInvocatorPackage.Literals.VARIABLE_FEATURE_REFERENCE__VARIABLE);
 					featurePath.add(ApogyCommonEMFPackage.Literals.NAMED__NAME);
 					return featurePath;
 				}
 			});
 			this.featurePathAdapters.add(new FeaturePathAdapterCustomImpl() {
 				@Override
 				public void notifyChanged(Notification msg) {
 					refreshViewer();
 					OperationCallsListComposite.this.newSelection(null);
 				}

 				@Override
 				public List<? extends EStructuralFeature> getFeatureList() {
 					List<EStructuralFeature> featurePath = new ArrayList<EStructuralFeature>();
 					featurePath.add(ApogyCoreInvocatorPackage.Literals.OPERATION_CALL_CONTAINER__OPERATION_CALLS);
 					featurePath.add(ApogyCoreInvocatorPackage.Literals.VARIABLE_FEATURE_REFERENCE__FEATURE_ROOT);
 					return featurePath;
 				}
 			});
 			this.featurePathAdapters.add(new FeaturePathAdapterCustomImpl() {
 				@Override
 				public void notifyChanged(Notification msg) {
 					refreshViewer();
 					OperationCallsListComposite.this.newSelection(null);
 				}

 				@Override
 				public List<? extends EStructuralFeature> getFeatureList() {
 					List<EStructuralFeature> featurePath = new ArrayList<EStructuralFeature>();
 					featurePath.add(ApogyCoreInvocatorPackage.Literals.OPERATION_CALL_CONTAINER__OPERATION_CALLS);
 					featurePath.add(
 							ApogyCoreInvocatorPackage.Literals.VARIABLE_FEATURE_REFERENCE__TYPE_MEMBER_REFERENCE_LIST_ELEMENT);
 					return featurePath;
 				}
 			});
 			this.featurePathAdapters.add(new FeaturePathAdapterCustomImpl() {
 				@Override
 				public void notifyChanged(Notification msg) {
 					refreshViewer();
 					OperationCallsListComposite.this.newSelection(null);
 				}

 				@Override
 				public List<? extends EStructuralFeature> getFeatureList() {
 					List<EStructuralFeature> featurePath = new ArrayList<EStructuralFeature>();
 					featurePath.add(ApogyCoreInvocatorPackage.Literals.OPERATION_CALL_CONTAINER__OPERATION_CALLS);
 					featurePath.add(ApogyCoreInvocatorPackage.Literals.OPERATION_CALL__ARGUMENTS_LIST);
 					featurePath.add(ApogyCoreInvocatorPackage.Literals.ARGUMENTS_LIST__ARGUMENTS);
 					return featurePath;
 				}
 			});
 		}
 		return this.featurePathAdapters;
 	}

 	protected DataBindingContext initDataBindingsCustom() {

 		DataBindingContext bindingContext = new DataBindingContext();

 		this.tableViewer.setContentProvider(new ControllerBindingsContentProvider(this.adapterFactory));
 		this.tableViewer.setLabelProvider(new ControllerBindingsLabelProvider(this.adapterFactory));

 		/**
 		 * Invoke button enabling bindings.
 		 */
 		IObservableValue<?> observeSingleSelectionTableViewer = ViewerProperties.singleSelection()
 				.observe(this.tableViewer);
 		IObservableValue<?> observeEnabledBtnInvokeObserveWidget = WidgetProperties.enabled().observe(this.btnInvoke);
 		bindingContext.bindValue(observeEnabledBtnInvokeObserveWidget, observeSingleSelectionTableViewer,
 				new UpdateValueStrategy(UpdateValueStrategy.POLICY_NEVER),
 				new UpdateValueStrategy(UpdateValueStrategy.POLICY_UPDATE)
 						.setConverter(new Converter(OperationCall.class, Boolean.class) {
 							@Override
 							public Object convert(Object fromObject) {
 								if (fromObject instanceof OperationCall) {
 									return Diagnostician.INSTANCE.validate((EObject) fromObject)
 											.getSeverity() == Diagnostic.OK;
 								} else {
 									return false;
 								}
 							}
 						}));

 		/**
 		 * Delete button enabling bindings.
 		 */
 		IObservableValue<?> observeEnabledBtnDeleteObserveWidget = WidgetProperties.enabled().observe(this.btnDelete);
 		bindingContext.bindValue(observeEnabledBtnDeleteObserveWidget, observeSingleSelectionTableViewer,
 				new UpdateValueStrategy(UpdateValueStrategy.POLICY_NEVER),
 				new UpdateValueStrategy(UpdateValueStrategy.POLICY_UPDATE)
 						.setConverter(new Converter(Object.class, Boolean.class) {
 							@Override
 							public Object convert(Object fromObject) {
 								return fromObject != null;

 							}
 						}));

 		return bindingContext;
 	}

 	/**
 	 * Label provider for the TreeViewer
 	 */
 	private class ControllerBindingsLabelProvider extends AdapterFactoryLabelProvider implements ITableLabelProvider {

 		public ControllerBindingsLabelProvider(AdapterFactory adapterFactory) {
 			super(adapterFactory);
 		}

 		private final static int NAME_COLUMN_ID = 0;
 		private final static int FEATURE_COLUMN_ID = 1;
 		private final static int COMMAND_COLUMN_ID = 2;

 		@Override
 		public String getColumnText(Object object, int columnIndex) {
 			String str = "<undefined>";
 			if (object instanceof OperationCall) {
 				OperationCall operationCall = (OperationCall) object;

 				switch (columnIndex) {
 				case NAME_COLUMN_ID:
 					str = operationCall.getName() == null ? "<unnamed>" : operationCall.getName();
 					break;
 				case FEATURE_COLUMN_ID:
 					str = ApogyCoreInvocatorFacade.INSTANCE.getOperationCallString(operationCall);
 					if (str.contains("#")) {
 						str = str.substring(0, str.indexOf("#"));
 					}
 					break;
 				case COMMAND_COLUMN_ID:
 					str = ApogyCoreInvocatorFacade.INSTANCE.getEOperationString(operationCall.getArgumentsList(),
 							operationCall.getEOperation());
 					str = str.substring(1, str.length());
 					break;
 				}
 			}
 			return str;
 		}

 		@Override
 		public Image getColumnImage(Object object, int columnIndex) {
 			return null;
 		}
 	}

 	/**
 	 * Content provider for the TreeViewer
 	 */
 	private class ControllerBindingsContentProvider extends AdapterFactoryContentProvider {

 		public ControllerBindingsContentProvider(AdapterFactory adapterFactory) {
 			super(adapterFactory);
 		}

 		@Override
 		public Object[] getElements(Object object) {
 			if (object instanceof EObjectReference) {
 				return ((OperationCallsList) ((EObjectReference) object).getEObject()).getOperationCalls().toArray();
 			}
 			return null;
 		}

 		@Override
 		public Object[] getChildren(Object object) {
 			return null;
 		}
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2018 Agence spatiale canadienne / Canadian Space Agency
	* 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:
	* Pierre Allard,
	* Regent L'Archeveque,
	* Olivier L. Larouche - initial API and implementation
	*
	* SPDX-License-Identifier: EPL-1.0
	*
	*******************************************************************************/
	package org.eclipse.apogy.core.invocator.ui.composites;

	import java.util.ArrayList;
	import java.util.List;
	import java.util.Map;

	import org.eclipse.apogy.common.emf.ApogyCommonEMFFactory;
	import org.eclipse.apogy.common.emf.ApogyCommonEMFPackage;
	import org.eclipse.apogy.common.emf.EObjectReference;
	import org.eclipse.apogy.common.emf.FeaturePathAdapter;
	import org.eclipse.apogy.common.emf.impl.FeaturePathAdapterCustomImpl;
	import org.eclipse.apogy.common.emf.transaction.ApogyCommonTransactionFacade;
	import org.eclipse.apogy.core.invocator.ApogyCoreInvocatorFacade;
	import org.eclipse.apogy.core.invocator.ApogyCoreInvocatorPackage;
	import org.eclipse.apogy.core.invocator.OperationCall;
	import org.eclipse.apogy.core.invocator.OperationCallsList;
	import org.eclipse.apogy.core.invocator.ui.wizards.OperationCallWizard;
	import org.eclipse.core.databinding.DataBindingContext;
	import org.eclipse.core.databinding.UpdateValueStrategy;
	import org.eclipse.core.databinding.conversion.Converter;
	import org.eclipse.core.databinding.observable.value.IObservableValue;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.core.runtime.jobs.Job;
	import org.eclipse.emf.common.notify.AdapterFactory;
	import org.eclipse.emf.common.notify.Notification;
	import org.eclipse.emf.common.util.Diagnostic;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.emf.ecore.EStructuralFeature;
	import org.eclipse.emf.ecore.util.Diagnostician;
	import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
	import org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider;
	import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
	import org.eclipse.emf.transaction.util.TransactionUtil;
	import org.eclipse.jface.databinding.swt.WidgetProperties;
	import org.eclipse.jface.databinding.viewers.ViewerProperties;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.ITableLabelProvider;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.jface.viewers.StructuredSelection;
	import org.eclipse.jface.viewers.TableViewer;
	import org.eclipse.jface.wizard.WizardDialog;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.ScrolledComposite;
	import org.eclipse.swt.events.DisposeEvent;
	import org.eclipse.swt.events.DisposeListener;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.graphics.Color;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Table;
	import org.eclipse.swt.widgets.TableColumn;
	import org.eclipse.swt.widgets.TableItem;

	public class OperationCallsListComposite extends ScrolledComposite {
	private DataBindingContext m_currentDataBindings;
	private final ComposedAdapterFactory adapterFactory = new ComposedAdapterFactory(
	ComposedAdapterFactory.Descriptor.Registry.INSTANCE);

	private OperationCallsList operationCallsList;
	private List<FeaturePathAdapter> featurePathAdapters;

	private TableViewer tableViewer;
	private Button btnDelete;
	private Button btnNew;
	private Button btnInvoke;

	public OperationCallsListComposite(Composite parent, int style) {
	super(parent, style);
	setLayout(new GridLayout(1, true));
	setExpandHorizontal(true);
	setExpandVertical(true);
	addDisposeListener(new DisposeListener() {
	@Override
	public void widgetDisposed(DisposeEvent e) {
	if (OperationCallsListComposite.this.m_currentDataBindings != null) {
	OperationCallsListComposite.this.m_currentDataBindings.dispose();
	}

	if (OperationCallsListComposite.this.operationCallsList != null) {
	for (FeaturePathAdapter adapter : OperationCallsListComposite.this.featurePathAdapters) {
	adapter.dispose();
	}
	}
	}
	});

	Composite composite = new Composite(this, SWT.NONE);
	composite.setLayout(new GridLayout(2, false));

	this.tableViewer = new TableViewer(composite, SWT.BORDER \| SWT.FULL_SELECTION);
	Table table = this.tableViewer.getTable();
	table.setHeaderVisible(true);
	table.setLinesVisible(true);
	table.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 4));
	this.tableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
	@Override
	public void selectionChanged(SelectionChangedEvent event) {
	newSelection(event.getSelection());
	}
	});

	TableColumn tblclmnName = new TableColumn(table, SWT.NONE);
	tblclmnName.setText("Name");

	TableColumn tblclmnFeature = new TableColumn(table, SWT.NONE);
	tblclmnFeature.setText("Feature");

	TableColumn tblclmnCommand = new TableColumn(table, SWT.NONE);
	tblclmnCommand.setText("Command");

	this.btnInvoke = new Button(composite, SWT.None);
	this.btnInvoke.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1));
	this.btnInvoke.setText("Invoke");
	this.btnInvoke.addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {
	final OperationCall opsCall = (OperationCall) OperationCallsListComposite.this.tableViewer
	.getStructuredSelection().getFirstElement();
	Job job = new Job(ApogyCoreInvocatorFacade.INSTANCE.getOperationCallString(opsCall)) {
	@Override
	protected IStatus run(IProgressMonitor monitor) {
	ApogyCoreInvocatorFacade.INSTANCE.exec(opsCall);
	return Status.OK_STATUS;
	}
	};
	job.schedule();

	}
	});

	Label label = new Label(composite, SWT.SEPARATOR \| SWT.HORIZONTAL);
	label.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1));

	this.btnNew = new Button(composite, SWT.NONE);
	this.btnNew.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1));
	this.btnNew.setText("New");
	this.btnNew.setEnabled(false);
	this.btnNew.addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {

	OperationCallWizard newOperationCallWizard = new OperationCallWizard(
	OperationCallsListComposite.this.operationCallsList) {
	@Override
	public boolean performFinish() {
	getOperationCall().eResource().getResourceSet().getResources()
	.remove(getOperationCall().eResource());
	TransactionUtil.disconnectFromEditingDomain(getOperationCall().eResource());

	/**
	* Needs to be executed in a asyncExec because of the databinding and the
	* ObservableListContentProvider.
	*/
	getDisplay().asyncExec(new Runnable() {
	@Override
	public void run() {
	ApogyCommonTransactionFacade.INSTANCE.basicAdd(
	OperationCallsListComposite.this.operationCallsList,
	ApogyCoreInvocatorPackage.Literals.OPERATION_CALL_CONTAINER__OPERATION_CALLS,
	getOperationCall());
	}
	});

	OperationCallsListComposite.this.tableViewer
	.setSelection(new StructuredSelection(getOperationCall()));
	packColumns();
	return true;
	}
	};
	WizardDialog dialog = new WizardDialog(getShell(), newOperationCallWizard);
	dialog.open();
	}
	});

	this.btnDelete = new Button(composite, SWT.NONE);
	this.btnDelete.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false, 1, 1));
	this.btnDelete.setText("Delete");
	this.btnDelete.setEnabled(false);
	this.btnDelete.addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {
	ApogyCommonTransactionFacade.INSTANCE.basicRemove(OperationCallsListComposite.this.operationCallsList,
	ApogyCoreInvocatorPackage.Literals.OPERATION_CALL_CONTAINER__OPERATION_CALLS,
	getSelectedOperationCall());
	}
	});

	setContent(composite);
	setMinSize(composite.computeSize(SWT.DEFAULT, SWT.DEFAULT));

	this.m_currentDataBindings = initDataBindingsCustom();
	}

	/**
	* Returns the selected {@link OperationCall}.
	*
	* @return Reference to the selected {@link OperationCall}.
	*/
	public OperationCall getSelectedOperationCall() {
	return (OperationCall) this.tableViewer.getStructuredSelection().getFirstElement();
	}

	/**
	* This method is called when a new selection is made in the parentComposite.
	*
	* @param selection Reference to the selection.
	*/
	protected void newSelection(ISelection selection) {
	}

	/**
	* This methods packs the columns to adjust their widths
	*/
	private void packColumns() {
	if (!this.tableViewer.isBusy()) {
	getDisplay().asyncExec(new Runnable() {
	@Override
	public void run() {
	for (TableColumn column : OperationCallsListComposite.this.tableViewer.getTable().getColumns()) {
	column.pack();
	}
	}
	});
	}
	}

	protected void refreshViewer() {
	if (!this.tableViewer.isBusy()) {
	getDisplay().asyncExec(new Runnable() {
	@Override
	public void run() {
	OperationCallsListComposite.this.tableViewer.refresh();
	packColumns();
	}
	});
	}
	}

	/**
	* Sets the {@link OperationCallsList} in the parentComposite
	*
	* @param operationCallsList
	*/
	public void setOperationCallsList(OperationCallsList operationCallsList) {
	if (this.operationCallsList != null) {
	for (FeaturePathAdapter adapter : getFeaturePathAdapters()) {
	adapter.dispose();
	}
	}

	this.operationCallsList = operationCallsList;

	if (this.operationCallsList.getOperationCalls() != null) {
	EObjectReference eObjectReference = ApogyCommonEMFFactory.eINSTANCE.createEObjectReference();
	eObjectReference.setEObject(operationCallsList);

	this.tableViewer.setInput(eObjectReference);
	this.btnNew.setEnabled(true);
	packColumns();
	} else {
	this.tableViewer.setInput(null);
	}

	for (FeaturePathAdapter adapter : getFeaturePathAdapters()) {
	adapter.init(operationCallsList);
	}
	}

	public OperationCallsList getOperationCallsList() {
	return this.operationCallsList;
	}

	/**
	* Sets the background colors of the {@link OperationCall}s. If no color is
	* specified for an {@link OperationCall}, the color will be set to white.
	*
	* @param map
	*/
	public void setBackgroudColor(Map<OperationCall, Integer> map) {
	for (TableItem item : this.tableViewer.getTable().getItems()) {
	Color color = null;
	if (map.containsKey(item.getData())) {
	color = getDisplay().getSystemColor(map.get(item.getData()));
	}

	if (color == null) {
	color = getDisplay().getSystemColor(SWT.COLOR_WHITE);
	}

	item.setBackground(color);
	}
	}

	private List<FeaturePathAdapter> getFeaturePathAdapters() {
	if (this.featurePathAdapters == null) {
	this.featurePathAdapters = new ArrayList<>();
	this.featurePathAdapters.add(new FeaturePathAdapterCustomImpl() {
	@Override
	public void notifyChanged(Notification msg) {
	refreshViewer();
	}

	@Override
	public List<? extends EStructuralFeature> getFeatureList() {
	List<EStructuralFeature> featurePath = new ArrayList<EStructuralFeature>();
	featurePath.add(ApogyCoreInvocatorPackage.Literals.OPERATION_CALL_CONTAINER__OPERATION_CALLS);
	featurePath.add(ApogyCommonEMFPackage.Literals.NAMED__NAME);
	return featurePath;
	}
	});
	this.featurePathAdapters.add(new FeaturePathAdapterCustomImpl() {
	@Override
	public void notifyChanged(Notification msg) {
	refreshViewer();
	}

	@Override
	public List<? extends EStructuralFeature> getFeatureList() {
	List<EStructuralFeature> featurePath = new ArrayList<EStructuralFeature>();
	featurePath.add(ApogyCoreInvocatorPackage.Literals.OPERATION_CALL_CONTAINER__OPERATION_CALLS);
	featurePath.add(ApogyCoreInvocatorPackage.Literals.OPERATION_CALL__EOPERATION);
	return featurePath;
	}
	});
	this.featurePathAdapters.add(new FeaturePathAdapterCustomImpl() {
	@Override
	public void notifyChanged(Notification msg) {
	refreshViewer();
	OperationCallsListComposite.this.newSelection(null);
	}

	@Override
	public List<? extends EStructuralFeature> getFeatureList() {
	List<EStructuralFeature> featurePath = new ArrayList<EStructuralFeature>();
	featurePath.add(ApogyCoreInvocatorPackage.Literals.OPERATION_CALL_CONTAINER__OPERATION_CALLS);
	featurePath.add(ApogyCoreInvocatorPackage.Literals.VARIABLE_FEATURE_REFERENCE__VARIABLE);
	featurePath.add(ApogyCommonEMFPackage.Literals.NAMED__NAME);
	return featurePath;
	}
	});
	this.featurePathAdapters.add(new FeaturePathAdapterCustomImpl() {
	@Override
	public void notifyChanged(Notification msg) {
	refreshViewer();
	OperationCallsListComposite.this.newSelection(null);
	}

	@Override
	public List<? extends EStructuralFeature> getFeatureList() {
	List<EStructuralFeature> featurePath = new ArrayList<EStructuralFeature>();
	featurePath.add(ApogyCoreInvocatorPackage.Literals.OPERATION_CALL_CONTAINER__OPERATION_CALLS);
	featurePath.add(ApogyCoreInvocatorPackage.Literals.VARIABLE_FEATURE_REFERENCE__FEATURE_ROOT);
	return featurePath;
	}
	});
	this.featurePathAdapters.add(new FeaturePathAdapterCustomImpl() {
	@Override
	public void notifyChanged(Notification msg) {
	refreshViewer();
	OperationCallsListComposite.this.newSelection(null);
	}

	@Override
	public List<? extends EStructuralFeature> getFeatureList() {
	List<EStructuralFeature> featurePath = new ArrayList<EStructuralFeature>();
	featurePath.add(ApogyCoreInvocatorPackage.Literals.OPERATION_CALL_CONTAINER__OPERATION_CALLS);
	featurePath.add(
	ApogyCoreInvocatorPackage.Literals.VARIABLE_FEATURE_REFERENCE__TYPE_MEMBER_REFERENCE_LIST_ELEMENT);
	return featurePath;
	}
	});
	this.featurePathAdapters.add(new FeaturePathAdapterCustomImpl() {
	@Override
	public void notifyChanged(Notification msg) {
	refreshViewer();
	OperationCallsListComposite.this.newSelection(null);
	}

	@Override
	public List<? extends EStructuralFeature> getFeatureList() {
	List<EStructuralFeature> featurePath = new ArrayList<EStructuralFeature>();
	featurePath.add(ApogyCoreInvocatorPackage.Literals.OPERATION_CALL_CONTAINER__OPERATION_CALLS);
	featurePath.add(ApogyCoreInvocatorPackage.Literals.OPERATION_CALL__ARGUMENTS_LIST);
	featurePath.add(ApogyCoreInvocatorPackage.Literals.ARGUMENTS_LIST__ARGUMENTS);
	return featurePath;
	}
	});
	}
	return this.featurePathAdapters;
	}

	protected DataBindingContext initDataBindingsCustom() {

	DataBindingContext bindingContext = new DataBindingContext();

	this.tableViewer.setContentProvider(new ControllerBindingsContentProvider(this.adapterFactory));
	this.tableViewer.setLabelProvider(new ControllerBindingsLabelProvider(this.adapterFactory));

	/**
	* Invoke button enabling bindings.
	*/
	IObservableValue<?> observeSingleSelectionTableViewer = ViewerProperties.singleSelection()
	.observe(this.tableViewer);
	IObservableValue<?> observeEnabledBtnInvokeObserveWidget = WidgetProperties.enabled().observe(this.btnInvoke);
	bindingContext.bindValue(observeEnabledBtnInvokeObserveWidget, observeSingleSelectionTableViewer,
	new UpdateValueStrategy(UpdateValueStrategy.POLICY_NEVER),
	new UpdateValueStrategy(UpdateValueStrategy.POLICY_UPDATE)
	.setConverter(new Converter(OperationCall.class, Boolean.class) {
	@Override
	public Object convert(Object fromObject) {
	if (fromObject instanceof OperationCall) {
	return Diagnostician.INSTANCE.validate((EObject) fromObject)
	.getSeverity() == Diagnostic.OK;
	} else {
	return false;
	}
	}
	}));

	/**
	* Delete button enabling bindings.
	*/
	IObservableValue<?> observeEnabledBtnDeleteObserveWidget = WidgetProperties.enabled().observe(this.btnDelete);
	bindingContext.bindValue(observeEnabledBtnDeleteObserveWidget, observeSingleSelectionTableViewer,
	new UpdateValueStrategy(UpdateValueStrategy.POLICY_NEVER),
	new UpdateValueStrategy(UpdateValueStrategy.POLICY_UPDATE)
	.setConverter(new Converter(Object.class, Boolean.class) {
	@Override
	public Object convert(Object fromObject) {
	return fromObject != null;

	}
	}));

	return bindingContext;
	}

	/**
	* Label provider for the TreeViewer
	*/
	private class ControllerBindingsLabelProvider extends AdapterFactoryLabelProvider implements ITableLabelProvider {

	public ControllerBindingsLabelProvider(AdapterFactory adapterFactory) {
	super(adapterFactory);
	}

	private final static int NAME_COLUMN_ID = 0;
	private final static int FEATURE_COLUMN_ID = 1;
	private final static int COMMAND_COLUMN_ID = 2;

	@Override
	public String getColumnText(Object object, int columnIndex) {
	String str = "<undefined>";
	if (object instanceof OperationCall) {
	OperationCall operationCall = (OperationCall) object;

	switch (columnIndex) {
	case NAME_COLUMN_ID:
	str = operationCall.getName() == null ? "<unnamed>" : operationCall.getName();
	break;
	case FEATURE_COLUMN_ID:
	str = ApogyCoreInvocatorFacade.INSTANCE.getOperationCallString(operationCall);
	if (str.contains("#")) {
	str = str.substring(0, str.indexOf("#"));
	}
	break;
	case COMMAND_COLUMN_ID:
	str = ApogyCoreInvocatorFacade.INSTANCE.getEOperationString(operationCall.getArgumentsList(),
	operationCall.getEOperation());
	str = str.substring(1, str.length());
	break;
	}
	}
	return str;
	}

	@Override
	public Image getColumnImage(Object object, int columnIndex) {
	return null;
	}
	}

	/**
	* Content provider for the TreeViewer
	*/
	private class ControllerBindingsContentProvider extends AdapterFactoryContentProvider {

	public ControllerBindingsContentProvider(AdapterFactory adapterFactory) {
	super(adapterFactory);
	}

	@Override
	public Object[] getElements(Object object) {
	if (object instanceof EObjectReference) {
	return ((OperationCallsList) ((EObjectReference) object).getEObject()).getOperationCalls().toArray();
	}
	return null;
	}

	@Override
	public Object[] getChildren(Object object) {
	return null;
	}
	}
	}