org.eclipse.emf.ecoretools.ui/src/org/eclipse/emf/ecoretools/ui/views/EClassHierarchyView.java - ecoretools/org.eclipse.ecoretools - Git at Google

 /***********************************************************************
  * Copyright (c) 2007 Anyware Technologies
  * Copyright (c) 2015 IRT AESE (IRT Saint Exupery)
  *
  * 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:
  *    David Sciamma / Jacques Lescot (Anyware Technologies) - initial API and implementation
  *    Pierre Gaufillet (IRT Saint Exupery)                  - Extension to a general purpose
  *                                                            EClass information view
  *
  * $Id: EClassHierarchyView.java,v 1.6 2008/05/19 09:26:31 jlescot Exp $
  **********************************************************************/

 package org.eclipse.emf.ecoretools.ui.views;

 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.ecore.EClass;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.ecoretools.ui.Activator;
 import org.eclipse.emf.ecoretools.ui.Messages;
 import org.eclipse.jface.action.Action;
 import org.eclipse.jface.action.IAction;
 import org.eclipse.jface.action.IToolBarManager;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.TreeViewer;
 import org.eclipse.sirius.viewpoint.DSemanticDecorator;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.SashForm;
 import org.eclipse.swt.events.DisposeEvent;
 import org.eclipse.swt.events.DisposeListener;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.ui.plugin.AbstractUIPlugin;
 import org.eclipse.ui.progress.WorkbenchJob;

 /**
  * This view analyzes the hierarchy of an EClass (ascendant, descendant...)
  *
  * @author <a href="david.sciamma@anyware-tech.com">David Sciamma</a>
  * @author <a href="pierre.gaufillet@irt-saintexupery.com">Pierre Gaufillet</a>
  */
 public class EClassHierarchyView extends AnalysisView {

 	/**
 	 * The ID of the view
 	 */
 	public static final String VIEW_ID = "org.eclipse.emf.ecoretools.internal.views.EClassHierarchyView"; //$NON-NLS-1$

 	private static enum SortDirection {
 		ASCENDANT, DESCENDANT
 	};

 	private final static int JOB_DELAY = 0;
 	/**
 	 * UI parts
 	 */
 	private SashForm splitter;

 	private TreeViewer hierarchyTree;

 	private TreeViewer featuresViewer;

 	private FeatureLabelProvider featureLabelProvider;

 	private SortDirection kind = SortDirection.ASCENDANT;

 	private ISelectionChangedListener hierarchicalTreeSelectionChangedListener;

 	/**
 	 * The job used to refresh the EClass hierarchy.
 	 */
 	private Job refreshHierarchyJob;

 	/**
 	 * The job used to refresh the features.
 	 */
 	private Job refreshFeaturesJob;

 	/**
 	 * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
 	 */
 	@Override
 	public void createPartControl(Composite parent) {
 		super.createPartControl(parent);

 		splitter = new SashForm(parent, SWT.HORIZONTAL);

 		hierarchicalTreeSelectionChangedListener = new ISelectionChangedListener() {
 			@Override
 			public void selectionChanged(SelectionChangedEvent event) {
 				doSelectionChanged(event);
 			};
 		};
 		hierarchyTree = new TreeViewer(splitter, SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL);
 		hierarchyTree.addPostSelectionChangedListener(hierarchicalTreeSelectionChangedListener);
 		hierarchyTree.getControl().addDisposeListener(new DisposeListener() {

 			/**
 			 * @see org.eclipse.swt.events.DisposeListener#widgetDisposed(org.eclipse.swt.events.DisposeEvent)
 			 */
 			@Override
 			public void widgetDisposed(DisposeEvent e) {
 				if (refreshHierarchyJob != null) {
 					refreshHierarchyJob.cancel();
 				}
 				if (refreshFeaturesJob != null) {
 					refreshFeaturesJob.cancel();
 				}
 			}
 		});

 		prepareViewerForDragToSirius(hierarchyTree);
 		setKind(SortDirection.ASCENDANT);

 		featuresViewer = new TreeViewer(splitter, SWT.H_SCROLL | SWT.V_SCROLL);
 		featuresViewer.setContentProvider(new FeatureContentProvider());
 		featureLabelProvider = new FeatureLabelProvider();
 		featuresViewer.setLabelProvider(featureLabelProvider);

 		refresh();
 	}

 	private void doSelectionChanged(SelectionChangedEvent event) {
 		ISelection selection = event.getSelection();
 		if (selection instanceof IStructuredSelection) {
 			EObject selectedObject = getSelection((IStructuredSelection) selection);
 			if (selectedObject != null /* && sProvider.equals(hierarchyTree) */) {
 				refreshFeatures(findEClass(selectedObject));
 			}
 		}
 	}

 	/**
 	 * Changes the kind of hierarchy displayed in this view
 	 *
 	 * @param hierarchyKind
 	 *            the new kind of hierarchy
 	 */
 	private void setKind(SortDirection hierarchyKind) {
 		kind = hierarchyKind;
 		hierarchyTree.setLabelProvider(new EClassInformationLabelProvider());
 		switch (kind) {
 		case ASCENDANT:
 			hierarchyTree.setContentProvider(new EClassHierarchyContentProvider());
 			break;
 		case DESCENDANT:
 			hierarchyTree.setContentProvider(new EClassDescendentHierarchyContentProvider());
 			break;
 		default:
 			break;
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.emf.ecoretools.ui.AnalysisView#refresh(org.eclipse.emf.ecore.EObject
 	 * )
 	 */
 	@Override
 	protected void refresh(EObject object) {
 		refreshHierarchy(object);
 	}

 	private void refreshHierarchy(EObject object) {
 		// cancel currently running job first, to prevent unnecessary redraw
 		if (refreshHierarchyJob != null) {
 			refreshHierarchyJob.cancel();
 		}

 		EClass selectedEClass = findEClass(object);
 		if (selectedEClass != null) {
 			refreshHierarchyJob = createRefreshHierarchyJob(selectedEClass);
 			refreshHierarchyJob.schedule(JOB_DELAY);
 		}
 	}

 	private void refreshFeatures(EObject object) {
 		// cancel currently running job first, to prevent unnecessary redraw
 		if (refreshFeaturesJob != null) {
 			refreshFeaturesJob.cancel();
 		}

 		EClass selectedEClass = findEClass(object);
 		if (selectedEClass != null) {
 			refreshFeaturesJob = createRefreshFeaturesJob(selectedEClass);
 			refreshFeaturesJob.schedule(JOB_DELAY);
 		}
 	}

 	private EClass findEClass(EObject object) {
 		if (object instanceof DSemanticDecorator) {
 			object = ((DSemanticDecorator) object).getTarget();
 		}

 		if (!(object instanceof EClass)) {
 			object = object.eClass();
 		}
 		return (EClass) object;
 	}

 	private Job createRefreshHierarchyJob(final EClass selection) {
 		Job job = new WorkbenchJob(Messages.EClassHierarchyView_RefreshHierarchy) {

 			/**
 			 * @see org.eclipse.ui.progress.UIJob#runInUIThread(org.eclipse.core.runtime.IProgressMonitor)
 			 */
 			@Override
 			public IStatus runInUIThread(IProgressMonitor monitor) {
 				if (hierarchyTree.getControl().isDisposed()) {
 					return Status.CANCEL_STATUS;
 				}
 				try {
 					hierarchyTree.getControl().setRedraw(false);
 					hierarchyTree.setInput(new EClass[] { selection });
 					hierarchyTree.refresh();
 					hierarchyTree.expandToLevel(2);
 					hierarchyTree.setSelection(new StructuredSelection(selection), true);

 				} finally {
 					// done updating the tree - set redraw back to true
 					hierarchyTree.getControl().setRedraw(true);
 				}
 				return Status.OK_STATUS;
 			}

 		};
 		job.setSystem(true);

 		return job;
 	}

 	private Job createRefreshFeaturesJob(final EClass selection) {
 		Job job = new WorkbenchJob(Messages.EClassHierarchyView_RefreshHierarchy) {

 			/**
 			 * @see org.eclipse.ui.progress.UIJob#runInUIThread(org.eclipse.core.runtime.IProgressMonitor)
 			 */
 			@Override
 			public IStatus runInUIThread(IProgressMonitor monitor) {
 				if (featuresViewer.getControl().isDisposed()) {
 					return Status.CANCEL_STATUS;
 				}
 				try {
 					featuresViewer.getControl().setRedraw(false);
 					featuresViewer.setInput(new EClass[] { selection });
 					featureLabelProvider.setSelection(selection);
 					featuresViewer.refresh();
 				} finally {
 					// done updating the tree - set redraw back to true
 					featuresViewer.getControl().setRedraw(true);
 				}
 				return Status.OK_STATUS;
 			}

 		};
 		job.setSystem(true);

 		return job;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.emf.ecoretools.ui.AnalysisView#fillToolBar(org.eclipse.jface.action
 	 * .IToolBarManager)
 	 */
 	@Override
 	protected void fillToolBar(IToolBarManager toolBar) {
 		IAction ascendantAction = new Action(Messages.EClassHierarchyView_Ascendant, IAction.AS_RADIO_BUTTON) {

 			@Override
 			public void run() {
 				EClassHierarchyView.this.setKind(SortDirection.ASCENDANT);
 				refresh();
 			}
 		};
 		ascendantAction.setImageDescriptor(AbstractUIPlugin.imageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/elcl16/super_co.gif")); //$NON-NLS-1$
 		ascendantAction.setChecked(true);

 		IAction descendantAction = new Action(Messages.EClassHierarchyView_Descendant, IAction.AS_RADIO_BUTTON) {

 			@Override
 			public void run() {
 				EClassHierarchyView.this.setKind(SortDirection.DESCENDANT);
 				refresh();
 			}
 		};
 		descendantAction.setImageDescriptor(AbstractUIPlugin.imageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/elcl16/sub_co.gif")); //$NON-NLS-1$

 		toolBar.add(ascendantAction);
 		toolBar.add(descendantAction);
 		super.fillToolBar(toolBar);
 	}
 }
	/***********************************************************************
	* Copyright (c) 2007 Anyware Technologies
	* Copyright (c) 2015 IRT AESE (IRT Saint Exupery)
	*
	* 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:
	* David Sciamma / Jacques Lescot (Anyware Technologies) - initial API and implementation
	* Pierre Gaufillet (IRT Saint Exupery) - Extension to a general purpose
	* EClass information view
	*
	* $Id: EClassHierarchyView.java,v 1.6 2008/05/19 09:26:31 jlescot Exp $
	**********************************************************************/

	package org.eclipse.emf.ecoretools.ui.views;

	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.ecore.EClass;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.emf.ecoretools.ui.Activator;
	import org.eclipse.emf.ecoretools.ui.Messages;
	import org.eclipse.jface.action.Action;
	import org.eclipse.jface.action.IAction;
	import org.eclipse.jface.action.IToolBarManager;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.jface.viewers.StructuredSelection;
	import org.eclipse.jface.viewers.TreeViewer;
	import org.eclipse.sirius.viewpoint.DSemanticDecorator;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.SashForm;
	import org.eclipse.swt.events.DisposeEvent;
	import org.eclipse.swt.events.DisposeListener;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.ui.plugin.AbstractUIPlugin;
	import org.eclipse.ui.progress.WorkbenchJob;

	/**
	* This view analyzes the hierarchy of an EClass (ascendant, descendant...)
	*
	* @author <a href="david.sciamma@anyware-tech.com">David Sciamma</a>
	* @author <a href="pierre.gaufillet@irt-saintexupery.com">Pierre Gaufillet</a>
	*/
	public class EClassHierarchyView extends AnalysisView {

	/**
	* The ID of the view
	*/
	public static final String VIEW_ID = "org.eclipse.emf.ecoretools.internal.views.EClassHierarchyView"; //$NON-NLS-1$

	private static enum SortDirection {
	ASCENDANT, DESCENDANT
	};

	private final static int JOB_DELAY = 0;
	/**
	* UI parts
	*/
	private SashForm splitter;

	private TreeViewer hierarchyTree;

	private TreeViewer featuresViewer;

	private FeatureLabelProvider featureLabelProvider;

	private SortDirection kind = SortDirection.ASCENDANT;

	private ISelectionChangedListener hierarchicalTreeSelectionChangedListener;

	/**
	* The job used to refresh the EClass hierarchy.
	*/
	private Job refreshHierarchyJob;

	/**
	* The job used to refresh the features.
	*/
	private Job refreshFeaturesJob;

	/**
	* @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
	*/
	@Override
	public void createPartControl(Composite parent) {
	super.createPartControl(parent);

	splitter = new SashForm(parent, SWT.HORIZONTAL);

	hierarchicalTreeSelectionChangedListener = new ISelectionChangedListener() {
	@Override
	public void selectionChanged(SelectionChangedEvent event) {
	doSelectionChanged(event);
	};
	};
	hierarchyTree = new TreeViewer(splitter, SWT.SINGLE \| SWT.H_SCROLL \| SWT.V_SCROLL);
	hierarchyTree.addPostSelectionChangedListener(hierarchicalTreeSelectionChangedListener);
	hierarchyTree.getControl().addDisposeListener(new DisposeListener() {

	/**
	* @see org.eclipse.swt.events.DisposeListener#widgetDisposed(org.eclipse.swt.events.DisposeEvent)
	*/
	@Override
	public void widgetDisposed(DisposeEvent e) {
	if (refreshHierarchyJob != null) {
	refreshHierarchyJob.cancel();
	}
	if (refreshFeaturesJob != null) {
	refreshFeaturesJob.cancel();
	}
	}
	});

	prepareViewerForDragToSirius(hierarchyTree);
	setKind(SortDirection.ASCENDANT);

	featuresViewer = new TreeViewer(splitter, SWT.H_SCROLL \| SWT.V_SCROLL);
	featuresViewer.setContentProvider(new FeatureContentProvider());
	featureLabelProvider = new FeatureLabelProvider();
	featuresViewer.setLabelProvider(featureLabelProvider);

	refresh();
	}

	private void doSelectionChanged(SelectionChangedEvent event) {
	ISelection selection = event.getSelection();
	if (selection instanceof IStructuredSelection) {
	EObject selectedObject = getSelection((IStructuredSelection) selection);
	if (selectedObject != null /* && sProvider.equals(hierarchyTree) */) {
	refreshFeatures(findEClass(selectedObject));
	}
	}
	}

	/**
	* Changes the kind of hierarchy displayed in this view
	*
	* @param hierarchyKind
	* the new kind of hierarchy
	*/
	private void setKind(SortDirection hierarchyKind) {
	kind = hierarchyKind;
	hierarchyTree.setLabelProvider(new EClassInformationLabelProvider());
	switch (kind) {
	case ASCENDANT:
	hierarchyTree.setContentProvider(new EClassHierarchyContentProvider());
	break;
	case DESCENDANT:
	hierarchyTree.setContentProvider(new EClassDescendentHierarchyContentProvider());
	break;
	default:
	break;
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.emf.ecoretools.ui.AnalysisView#refresh(org.eclipse.emf.ecore.EObject
	* )
	*/
	@Override
	protected void refresh(EObject object) {
	refreshHierarchy(object);
	}

	private void refreshHierarchy(EObject object) {
	// cancel currently running job first, to prevent unnecessary redraw
	if (refreshHierarchyJob != null) {
	refreshHierarchyJob.cancel();
	}

	EClass selectedEClass = findEClass(object);
	if (selectedEClass != null) {
	refreshHierarchyJob = createRefreshHierarchyJob(selectedEClass);
	refreshHierarchyJob.schedule(JOB_DELAY);
	}
	}

	private void refreshFeatures(EObject object) {
	// cancel currently running job first, to prevent unnecessary redraw
	if (refreshFeaturesJob != null) {
	refreshFeaturesJob.cancel();
	}

	EClass selectedEClass = findEClass(object);
	if (selectedEClass != null) {
	refreshFeaturesJob = createRefreshFeaturesJob(selectedEClass);
	refreshFeaturesJob.schedule(JOB_DELAY);
	}
	}

	private EClass findEClass(EObject object) {
	if (object instanceof DSemanticDecorator) {
	object = ((DSemanticDecorator) object).getTarget();
	}

	if (!(object instanceof EClass)) {
	object = object.eClass();
	}
	return (EClass) object;
	}

	private Job createRefreshHierarchyJob(final EClass selection) {
	Job job = new WorkbenchJob(Messages.EClassHierarchyView_RefreshHierarchy) {

	/**
	* @see org.eclipse.ui.progress.UIJob#runInUIThread(org.eclipse.core.runtime.IProgressMonitor)
	*/
	@Override
	public IStatus runInUIThread(IProgressMonitor monitor) {
	if (hierarchyTree.getControl().isDisposed()) {
	return Status.CANCEL_STATUS;
	}
	try {
	hierarchyTree.getControl().setRedraw(false);
	hierarchyTree.setInput(new EClass[] { selection });
	hierarchyTree.refresh();
	hierarchyTree.expandToLevel(2);
	hierarchyTree.setSelection(new StructuredSelection(selection), true);

	} finally {
	// done updating the tree - set redraw back to true
	hierarchyTree.getControl().setRedraw(true);
	}
	return Status.OK_STATUS;
	}

	};
	job.setSystem(true);

	return job;
	}

	private Job createRefreshFeaturesJob(final EClass selection) {
	Job job = new WorkbenchJob(Messages.EClassHierarchyView_RefreshHierarchy) {

	/**
	* @see org.eclipse.ui.progress.UIJob#runInUIThread(org.eclipse.core.runtime.IProgressMonitor)
	*/
	@Override
	public IStatus runInUIThread(IProgressMonitor monitor) {
	if (featuresViewer.getControl().isDisposed()) {
	return Status.CANCEL_STATUS;
	}
	try {
	featuresViewer.getControl().setRedraw(false);
	featuresViewer.setInput(new EClass[] { selection });
	featureLabelProvider.setSelection(selection);
	featuresViewer.refresh();
	} finally {
	// done updating the tree - set redraw back to true
	featuresViewer.getControl().setRedraw(true);
	}
	return Status.OK_STATUS;
	}

	};
	job.setSystem(true);

	return job;
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.emf.ecoretools.ui.AnalysisView#fillToolBar(org.eclipse.jface.action
	* .IToolBarManager)
	*/
	@Override
	protected void fillToolBar(IToolBarManager toolBar) {
	IAction ascendantAction = new Action(Messages.EClassHierarchyView_Ascendant, IAction.AS_RADIO_BUTTON) {

	@Override
	public void run() {
	EClassHierarchyView.this.setKind(SortDirection.ASCENDANT);
	refresh();
	}
	};
	ascendantAction.setImageDescriptor(AbstractUIPlugin.imageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/elcl16/super_co.gif")); //$NON-NLS-1$
	ascendantAction.setChecked(true);

	IAction descendantAction = new Action(Messages.EClassHierarchyView_Descendant, IAction.AS_RADIO_BUTTON) {

	@Override
	public void run() {
	EClassHierarchyView.this.setKind(SortDirection.DESCENDANT);
	refresh();
	}
	};
	descendantAction.setImageDescriptor(AbstractUIPlugin.imageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/elcl16/sub_co.gif")); //$NON-NLS-1$

	toolBar.add(ascendantAction);
	toolBar.add(descendantAction);
	super.fillToolBar(toolBar);
	}
	}