plugins/org.eclipse.fordiac.ide.gef/src/org/eclipse/fordiac/ide/gef/DiagramEditorWithFlyoutPalette.java - 4diac/org.eclipse.4diac.ide - Git at Google

 /*******************************************************************************
  * Copyright (c) 2008 - 2016 Profactor GbmH, TU Wien ACIN, fortiss GmbH
  * 				 2018 - 2019 Johannes Kepler University
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License 2.0 which is available at
  * http://www.eclipse.org/legal/epl-2.0.
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *   Gerhard Ebenhofer, Alois Zoitl, Monika Wenger
  *     - initial API and implementation and/or initial documentation
  *   Alois Zoitl - fixed copy/paste handling
  *   Alois Zoitl - added diagram font preference
  *******************************************************************************/
 package org.eclipse.fordiac.ide.gef;

 import java.util.EventObject;
 import java.util.Iterator;
 import java.util.List;

 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.draw2d.FigureCanvas;
 import org.eclipse.draw2d.PositionConstants;
 import org.eclipse.fordiac.ide.gef.dnd.ParameterDropTargetListener;
 import org.eclipse.fordiac.ide.gef.editparts.ZoomScalableFreeformRootEditPart;
 import org.eclipse.fordiac.ide.gef.listeners.DiagramFontChangeListener;
 import org.eclipse.fordiac.ide.gef.listeners.FigureFontUpdateListener;
 import org.eclipse.fordiac.ide.gef.print.PrintPreviewAction;
 import org.eclipse.fordiac.ide.gef.ruler.FordiacRulerComposite;
 import org.eclipse.fordiac.ide.model.libraryElement.AutomationSystem;
 import org.eclipse.fordiac.ide.systemmanagement.SystemManager;
 import org.eclipse.fordiac.ide.ui.editors.I4diacModelEditor;
 import org.eclipse.fordiac.ide.ui.preferences.PreferenceConstants;
 import org.eclipse.fordiac.ide.util.AdvancedPanningSelectionTool;
 import org.eclipse.fordiac.ide.util.UntypedEditorInput;
 import org.eclipse.gef.ContextMenuProvider;
 import org.eclipse.gef.DefaultEditDomain;
 import org.eclipse.gef.EditPart;
 import org.eclipse.gef.EditPartFactory;
 import org.eclipse.gef.GraphicalViewer;
 import org.eclipse.gef.KeyHandler;
 import org.eclipse.gef.KeyStroke;
 import org.eclipse.gef.MouseWheelHandler;
 import org.eclipse.gef.MouseWheelZoomHandler;
 import org.eclipse.gef.commands.CommandStack;
 import org.eclipse.gef.dnd.TemplateTransferDragSourceListener;
 import org.eclipse.gef.dnd.TemplateTransferDropTargetListener;
 import org.eclipse.gef.editparts.ScalableFreeformRootEditPart;
 import org.eclipse.gef.editparts.ZoomManager;
 import org.eclipse.gef.ui.actions.ActionRegistry;
 import org.eclipse.gef.ui.actions.AlignmentAction;
 import org.eclipse.gef.ui.actions.DirectEditAction;
 import org.eclipse.gef.ui.actions.GEFActionConstants;
 import org.eclipse.gef.ui.palette.PaletteViewer;
 import org.eclipse.gef.ui.palette.PaletteViewerProvider;
 import org.eclipse.gef.ui.parts.GraphicalEditorWithFlyoutPalette;
 import org.eclipse.gef.ui.parts.GraphicalViewerKeyHandler;
 import org.eclipse.gef.ui.parts.ScrollingGraphicalViewer;
 import org.eclipse.gef.ui.rulers.RulerComposite;
 import org.eclipse.jface.action.IAction;
 import org.eclipse.jface.resource.JFaceResources;
 import org.eclipse.jface.util.IPropertyChangeListener;
 import org.eclipse.jface.util.TransferDropTargetListener;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.ui.IActionBars;
 import org.eclipse.ui.IEditorInput;
 import org.eclipse.ui.IEditorPart;
 import org.eclipse.ui.IEditorSite;
 import org.eclipse.ui.IWorkbenchPart;
 import org.eclipse.ui.PartInitException;
 import org.eclipse.ui.actions.ActionFactory;
 import org.eclipse.ui.views.contentoutline.IContentOutlinePage;
 import org.eclipse.ui.views.properties.IPropertySheetPage;
 import org.eclipse.ui.views.properties.tabbed.ITabbedPropertySheetPageContributor;
 import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage;

 /**
  * A base editor for various graphical editors.
  *
  * @author Gerhard Ebenhofer (gerhard.ebenhofer@profactor.at)
  */
 public abstract class DiagramEditorWithFlyoutPalette extends GraphicalEditorWithFlyoutPalette
 		implements ITabbedPropertySheetPageContributor, I4diacModelEditor {

 	/** The PROPERTY_CONTRIBUTOR_ID. */
 	public static final String PROPERTY_CONTRIBUTOR_ID = "org.eclipse.fordiac.ide.application.editors.DiagramEditor"; //$NON-NLS-1$

 	/** The shared key handler. */
 	private KeyHandler sharedKeyHandler;

 	/** The outline page. */
 	private DiagramOutlinePage outlinePage;

 	// needed for tabbed property sheets
 	@Override
 	public CommandStack getCommandStack() {
 		return super.getCommandStack();
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.gef.ui.parts.GraphicalEditor#commandStackChanged(java.util
 	 * .EventObject)
 	 */
 	@Override
 	public void commandStackChanged(final EventObject event) {
 		firePropertyChange(IEditorPart.PROP_DIRTY);
 		super.commandStackChanged(event);
 	}

 	/**
 	 * refresh all child editparts when editor gets focus.
 	 */
 	@SuppressWarnings("rawtypes")
 	@Override
 	public void setFocus() {
 		super.setFocus();
 		for (Iterator iter = getGraphicalViewer().getRootEditPart().getChildren().iterator(); iter.hasNext();) {
 			EditPart ep = (EditPart) iter.next();
 			ep.refresh();
 		}
 	}

 	private RulerComposite rulerComp;

 	@Override
 	protected void createGraphicalViewer(final Composite parent) {
 		rulerComp = new FordiacRulerComposite(parent, SWT.NONE);

 		GraphicalViewer viewer = new AdvancedScrollingGraphicalViewer();
 		viewer.createControl(rulerComp);
 		setGraphicalViewer(viewer);
 		configureGraphicalViewer();
 		hookGraphicalViewer();
 		initializeGraphicalViewer();

 		viewer.getControl().setFont(JFaceResources.getFont(PreferenceConstants.DIAGRAM_FONT));

 		final IPropertyChangeListener fontChangeListener = new DiagramFontChangeListener(
 				new FigureFontUpdateListener(((ScalableFreeformRootEditPart) viewer.getRootEditPart()).getFigure(),
 						PreferenceConstants.DIAGRAM_FONT));

 		JFaceResources.getFontRegistry().addListener(fontChangeListener);
 		viewer.getControl().addDisposeListener(e -> {
 			JFaceResources.getFontRegistry().removeListener(fontChangeListener);
 		});

 		rulerComp.setGraphicalViewer((ScrollingGraphicalViewer) getGraphicalViewer());
 	}

 	@Override
 	protected Control getGraphicalControl() {
 		return rulerComp;
 	}

 	protected ScalableFreeformRootEditPart createRootEditPart() {
 		return new ZoomScalableFreeformRootEditPart(getSite(), getActionRegistry());
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.gef.ui.parts.GraphicalEditor#configureGraphicalViewer()
 	 */
 	@Override
 	protected void configureGraphicalViewer() {
 		super.configureGraphicalViewer();
 		ScrollingGraphicalViewer viewer = (ScrollingGraphicalViewer) getGraphicalViewer();

 		ScalableFreeformRootEditPart root = createRootEditPart();

 		ContextMenuProvider cmp = getContextMenuProvider(viewer, root.getZoomManager());
 		if (cmp != null) {
 			viewer.setContextMenu(cmp);
 			getSite().registerContextMenu("org.eclipse.fordiac.ide.gef.contextmenu", //$NON-NLS-1$
 					cmp, viewer);
 		}

 		viewer.setRootEditPart(root);
 		viewer.setEditPartFactory(getEditPartFactory());

 		KeyHandler viewerKeyHandler = new GraphicalViewerKeyHandler(viewer).setParent(getCommonKeyHandler());
 		viewer.setKeyHandler(viewerKeyHandler);

 		viewer.setProperty(MouseWheelHandler.KeyGenerator.getKey(SWT.MOD1), MouseWheelZoomHandler.SINGLETON);
 	}

 	public ZoomManager getZoomManger() {
 		return ((ScalableFreeformRootEditPart) (getGraphicalViewer().getRootEditPart())).getZoomManager();
 	}

 	/**
 	 * Gets the edits the part factory.
 	 *
 	 * @return the edits the part factory
 	 */
 	protected abstract EditPartFactory getEditPartFactory();

 	/**
 	 * Gets the context menu provider.
 	 *
 	 * @param viewer the viewer
 	 * @param zoom   the zoom manager of the root edit part
 	 *
 	 * @return the context menu provider
 	 */
 	protected abstract ContextMenuProvider getContextMenuProvider(ScrollingGraphicalViewer viewer,
 			ZoomManager zoomManager);

 	/**
 	 * Creates the transfer drop target listener.
 	 *
 	 * @return the transfer drop target listener
 	 */
 	protected abstract TransferDropTargetListener createTransferDropTargetListener();

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.gef.ui.parts.GraphicalEditor#initializeGraphicalViewer()
 	 */
 	@Override
 	protected void initializeGraphicalViewer() {
 		GraphicalViewer viewer = getGraphicalViewer();
 		viewer.setContents(getModel());
 		// listen for dropped parts
 		TransferDropTargetListener listener = createTransferDropTargetListener();
 		if (listener != null) {
 			viewer.addDropTargetListener(listener);
 		}
 		// enable drag from palette
 		getGraphicalViewer().addDropTargetListener(new TemplateTransferDropTargetListener(getGraphicalViewer()));
 		viewer.addDropTargetListener(new ParameterDropTargetListener(getGraphicalViewer()));
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.ui.IEditorPart#init(org.eclipse.ui.IEditorSite,
 	 * org.eclipse.ui.IEditorInput)
 	 */
 	@Override
 	public void init(final IEditorSite site, final IEditorInput input) throws PartInitException {
 		setModel(input);
 		super.init(site, input);
 		if (input.getName() != null) {
 			setPartName(input.getName());
 		}
 		ActionRegistry registry = getActionRegistry();
 		IActionBars bars = site.getActionBars();
 		String id = ActionFactory.UNDO.getId();
 		bars.setGlobalActionHandler(id, registry.getAction(id));
 		id = ActionFactory.REDO.getId();
 		bars.setGlobalActionHandler(id, registry.getAction(id));
 		id = ActionFactory.DELETE.getId();
 		bars.setGlobalActionHandler(id, registry.getAction(id));
 		bars.updateActionBars();
 	}

 	protected void updateEditorTitle(String newTitel) {
 		((UntypedEditorInput) getEditorInput()).setName(newTitel); // update the editor input so that the tooltip and
 																	// header bars are correct as well
 		setPartName(newTitel);
 	}

 	/**
 	 * Sets the model.
 	 *
 	 * @param input the new model
 	 */
 	protected void setModel(final IEditorInput input) {

 		setEditDomain(new DefaultEditDomain(this));
 		getEditDomain().setDefaultTool(new AdvancedPanningSelectionTool());
 		getEditDomain().setActiveTool(getEditDomain().getDefaultTool());
 		// use one "System - Wide" command stack to avoid incositensies due to
 		// undo redo
 		getEditDomain().setCommandStack(SystemManager.INSTANCE.getCommandStack(getSystem()));
 	}

 	/**
 	 * Gets the system.
 	 *
 	 * @return the system
 	 */
 	public abstract AutomationSystem getSystem();

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @seeorg.eclipse.ui.part.EditorPart#doSave(org.eclipse.core.runtime.
 	 * IProgressMonitor)
 	 */
 	@Override
 	public abstract void doSave(final IProgressMonitor monitor);

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.gef.ui.parts.GraphicalEditor#doSaveAs()
 	 */
 	@Override
 	public abstract void doSaveAs();

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.gef.ui.parts.GraphicalEditor#isSaveAsAllowed()
 	 */
 	@Override
 	public boolean isSaveAsAllowed() {
 		return false;
 	}

 	/**
 	 * Gets the common key handler.
 	 *
 	 * @return the common key handler
 	 */
 	protected KeyHandler getCommonKeyHandler() {
 		if (sharedKeyHandler == null) {
 			sharedKeyHandler = new KeyHandler();
 			sharedKeyHandler.put(KeyStroke.getPressed(SWT.DEL, 127, 0),
 					getActionRegistry().getAction(ActionFactory.DELETE.getId()));
 			sharedKeyHandler.put(KeyStroke.getPressed(SWT.F2, 0),
 					getActionRegistry().getAction(GEFActionConstants.DIRECT_EDIT));
 			sharedKeyHandler.put(/* CTRL + '=' */
 					KeyStroke.getPressed('+', 0x3d, SWT.CTRL),
 					getActionRegistry().getAction(GEFActionConstants.ZOOM_IN));

 		}
 		return sharedKeyHandler;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.gef.ui.parts.GraphicalEditorWithFlyoutPalette#getAdapter(
 	 * java.lang.Class)
 	 */
 	@SuppressWarnings("rawtypes")
 	@Override
 	public Object getAdapter(final Class type) {
 		if (type == ZoomManager.class) {
 			return getGraphicalViewer().getProperty(ZoomManager.class.toString());
 		}
 		if (type == IContentOutlinePage.class) {
 			outlinePage = new DiagramOutlinePage(getGraphicalViewer());
 			return outlinePage;
 		}
 		if (type == IPropertySheetPage.class) {
 			return new TabbedPropertySheetPage(this);
 		}

 		return super.getAdapter(type);
 	}

 	/**
 	 * Gets the editor.
 	 *
 	 * @return the editor
 	 */
 	protected FigureCanvas getEditor() {
 		return (FigureCanvas) getGraphicalViewer().getControl();
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.gef.ui.parts.GraphicalEditor#createActions()
 	 */
 	@SuppressWarnings("unchecked")
 	@Override
 	protected void createActions() {
 		ActionRegistry registry = getActionRegistry();
 		IAction action;

 		action = new DirectEditAction((IWorkbenchPart) this);
 		registry.registerAction(action);
 		getSelectionActions().add(action.getId());

 		action = new AlignmentAction((IWorkbenchPart) this, PositionConstants.LEFT);
 		registry.registerAction(action);
 		getSelectionActions().add(action.getId());

 		action = new AlignmentAction((IWorkbenchPart) this, PositionConstants.RIGHT);
 		registry.registerAction(action);
 		getSelectionActions().add(action.getId());

 		action = new AlignmentAction((IWorkbenchPart) this, PositionConstants.TOP);
 		registry.registerAction(action);
 		getSelectionActions().add(action.getId());

 		action = new AlignmentAction((IWorkbenchPart) this, PositionConstants.BOTTOM);
 		registry.registerAction(action);
 		getSelectionActions().add(action.getId());

 		action = new AlignmentAction((IWorkbenchPart) this, PositionConstants.CENTER);
 		registry.registerAction(action);
 		getSelectionActions().add(action.getId());

 		action = new AlignmentAction((IWorkbenchPart) this, PositionConstants.MIDDLE);
 		registry.registerAction(action);
 		getSelectionActions().add(action.getId());

 		super.createActions();

 		// remove the default print action and register our own one
 		registry.removeAction(registry.getAction(ActionFactory.PRINT.getId()));
 		action = new PrintPreviewAction(getGraphicalViewer());
 		registry.registerAction(action);
 		getEditorSite().getActionBars().setGlobalActionHandler(ActionFactory.PRINT.getId(), action);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.gef.ui.parts.GraphicalEditor#getSelectionActions()
 	 */
 	@SuppressWarnings("rawtypes")
 	@Override
 	protected List getSelectionActions() {
 		return super.getSelectionActions();
 	}

 	/**
 	 * Gets the sel actions.
 	 *
 	 * @return the sel actions
 	 */
 	@SuppressWarnings("rawtypes")
 	public List getSelActions() {
 		return getSelectionActions();
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.ui.IWorkbenchPart#dispose()
 	 */
 	@Override
 	public void dispose() {
 		outlinePage = null;
 		super.dispose();
 	}

 	/**
 	 * Returns the GraphicalViewer of this Editor.
 	 *
 	 * @return the GraphicalViewer
 	 */
 	public GraphicalViewer getViewer() {
 		return getGraphicalViewer();
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @seeorg.eclipse.gef.ui.parts.GraphicalEditorWithFlyoutPalette#
 	 * createPaletteViewerProvider()
 	 */
 	@Override
 	protected PaletteViewerProvider createPaletteViewerProvider() {
 		return new PaletteViewerProvider(getEditDomain()) {
 			@Override
 			protected void configurePaletteViewer(final PaletteViewer viewer) {
 				super.configurePaletteViewer(viewer);
 				viewer.addDragSourceListener(new TemplateTransferDragSourceListener(viewer));
 			}
 		};
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.ui.views.properties.tabbed.ITabbedPropertySheetPageContributor
 	 * #getContributorId()
 	 */
 	@Override
 	public String getContributorId() {
 		return PROPERTY_CONTRIBUTOR_ID;
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2008 - 2016 Profactor GbmH, TU Wien ACIN, fortiss GmbH
	* 2018 - 2019 Johannes Kepler University
	*
	* This program and the accompanying materials are made available under the
	* terms of the Eclipse Public License 2.0 which is available at
	* http://www.eclipse.org/legal/epl-2.0.
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* Gerhard Ebenhofer, Alois Zoitl, Monika Wenger
	* - initial API and implementation and/or initial documentation
	* Alois Zoitl - fixed copy/paste handling
	* Alois Zoitl - added diagram font preference
	*******************************************************************************/
	package org.eclipse.fordiac.ide.gef;

	import java.util.EventObject;
	import java.util.Iterator;
	import java.util.List;

	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.draw2d.FigureCanvas;
	import org.eclipse.draw2d.PositionConstants;
	import org.eclipse.fordiac.ide.gef.dnd.ParameterDropTargetListener;
	import org.eclipse.fordiac.ide.gef.editparts.ZoomScalableFreeformRootEditPart;
	import org.eclipse.fordiac.ide.gef.listeners.DiagramFontChangeListener;
	import org.eclipse.fordiac.ide.gef.listeners.FigureFontUpdateListener;
	import org.eclipse.fordiac.ide.gef.print.PrintPreviewAction;
	import org.eclipse.fordiac.ide.gef.ruler.FordiacRulerComposite;
	import org.eclipse.fordiac.ide.model.libraryElement.AutomationSystem;
	import org.eclipse.fordiac.ide.systemmanagement.SystemManager;
	import org.eclipse.fordiac.ide.ui.editors.I4diacModelEditor;
	import org.eclipse.fordiac.ide.ui.preferences.PreferenceConstants;
	import org.eclipse.fordiac.ide.util.AdvancedPanningSelectionTool;
	import org.eclipse.fordiac.ide.util.UntypedEditorInput;
	import org.eclipse.gef.ContextMenuProvider;
	import org.eclipse.gef.DefaultEditDomain;
	import org.eclipse.gef.EditPart;
	import org.eclipse.gef.EditPartFactory;
	import org.eclipse.gef.GraphicalViewer;
	import org.eclipse.gef.KeyHandler;
	import org.eclipse.gef.KeyStroke;
	import org.eclipse.gef.MouseWheelHandler;
	import org.eclipse.gef.MouseWheelZoomHandler;
	import org.eclipse.gef.commands.CommandStack;
	import org.eclipse.gef.dnd.TemplateTransferDragSourceListener;
	import org.eclipse.gef.dnd.TemplateTransferDropTargetListener;
	import org.eclipse.gef.editparts.ScalableFreeformRootEditPart;
	import org.eclipse.gef.editparts.ZoomManager;
	import org.eclipse.gef.ui.actions.ActionRegistry;
	import org.eclipse.gef.ui.actions.AlignmentAction;
	import org.eclipse.gef.ui.actions.DirectEditAction;
	import org.eclipse.gef.ui.actions.GEFActionConstants;
	import org.eclipse.gef.ui.palette.PaletteViewer;
	import org.eclipse.gef.ui.palette.PaletteViewerProvider;
	import org.eclipse.gef.ui.parts.GraphicalEditorWithFlyoutPalette;
	import org.eclipse.gef.ui.parts.GraphicalViewerKeyHandler;
	import org.eclipse.gef.ui.parts.ScrollingGraphicalViewer;
	import org.eclipse.gef.ui.rulers.RulerComposite;
	import org.eclipse.jface.action.IAction;
	import org.eclipse.jface.resource.JFaceResources;
	import org.eclipse.jface.util.IPropertyChangeListener;
	import org.eclipse.jface.util.TransferDropTargetListener;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.ui.IActionBars;
	import org.eclipse.ui.IEditorInput;
	import org.eclipse.ui.IEditorPart;
	import org.eclipse.ui.IEditorSite;
	import org.eclipse.ui.IWorkbenchPart;
	import org.eclipse.ui.PartInitException;
	import org.eclipse.ui.actions.ActionFactory;
	import org.eclipse.ui.views.contentoutline.IContentOutlinePage;
	import org.eclipse.ui.views.properties.IPropertySheetPage;
	import org.eclipse.ui.views.properties.tabbed.ITabbedPropertySheetPageContributor;
	import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage;

	/**
	* A base editor for various graphical editors.
	*
	* @author Gerhard Ebenhofer (gerhard.ebenhofer@profactor.at)
	*/
	public abstract class DiagramEditorWithFlyoutPalette extends GraphicalEditorWithFlyoutPalette
	implements ITabbedPropertySheetPageContributor, I4diacModelEditor {

	/** The PROPERTY_CONTRIBUTOR_ID. */
	public static final String PROPERTY_CONTRIBUTOR_ID = "org.eclipse.fordiac.ide.application.editors.DiagramEditor"; //$NON-NLS-1$

	/** The shared key handler. */
	private KeyHandler sharedKeyHandler;

	/** The outline page. */
	private DiagramOutlinePage outlinePage;

	// needed for tabbed property sheets
	@Override
	public CommandStack getCommandStack() {
	return super.getCommandStack();
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.gef.ui.parts.GraphicalEditor#commandStackChanged(java.util
	* .EventObject)
	*/
	@Override
	public void commandStackChanged(final EventObject event) {
	firePropertyChange(IEditorPart.PROP_DIRTY);
	super.commandStackChanged(event);
	}

	/**
	* refresh all child editparts when editor gets focus.
	*/
	@SuppressWarnings("rawtypes")
	@Override
	public void setFocus() {
	super.setFocus();
	for (Iterator iter = getGraphicalViewer().getRootEditPart().getChildren().iterator(); iter.hasNext();) {
	EditPart ep = (EditPart) iter.next();
	ep.refresh();
	}
	}

	private RulerComposite rulerComp;

	@Override
	protected void createGraphicalViewer(final Composite parent) {
	rulerComp = new FordiacRulerComposite(parent, SWT.NONE);

	GraphicalViewer viewer = new AdvancedScrollingGraphicalViewer();
	viewer.createControl(rulerComp);
	setGraphicalViewer(viewer);
	configureGraphicalViewer();
	hookGraphicalViewer();
	initializeGraphicalViewer();

	viewer.getControl().setFont(JFaceResources.getFont(PreferenceConstants.DIAGRAM_FONT));

	final IPropertyChangeListener fontChangeListener = new DiagramFontChangeListener(
	new FigureFontUpdateListener(((ScalableFreeformRootEditPart) viewer.getRootEditPart()).getFigure(),
	PreferenceConstants.DIAGRAM_FONT));

	JFaceResources.getFontRegistry().addListener(fontChangeListener);
	viewer.getControl().addDisposeListener(e -> {
	JFaceResources.getFontRegistry().removeListener(fontChangeListener);
	});

	rulerComp.setGraphicalViewer((ScrollingGraphicalViewer) getGraphicalViewer());
	}

	@Override
	protected Control getGraphicalControl() {
	return rulerComp;
	}

	protected ScalableFreeformRootEditPart createRootEditPart() {
	return new ZoomScalableFreeformRootEditPart(getSite(), getActionRegistry());
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.gef.ui.parts.GraphicalEditor#configureGraphicalViewer()
	*/
	@Override
	protected void configureGraphicalViewer() {
	super.configureGraphicalViewer();
	ScrollingGraphicalViewer viewer = (ScrollingGraphicalViewer) getGraphicalViewer();

	ScalableFreeformRootEditPart root = createRootEditPart();

	ContextMenuProvider cmp = getContextMenuProvider(viewer, root.getZoomManager());
	if (cmp != null) {
	viewer.setContextMenu(cmp);
	getSite().registerContextMenu("org.eclipse.fordiac.ide.gef.contextmenu", //$NON-NLS-1$
	cmp, viewer);
	}

	viewer.setRootEditPart(root);
	viewer.setEditPartFactory(getEditPartFactory());

	KeyHandler viewerKeyHandler = new GraphicalViewerKeyHandler(viewer).setParent(getCommonKeyHandler());
	viewer.setKeyHandler(viewerKeyHandler);

	viewer.setProperty(MouseWheelHandler.KeyGenerator.getKey(SWT.MOD1), MouseWheelZoomHandler.SINGLETON);
	}

	public ZoomManager getZoomManger() {
	return ((ScalableFreeformRootEditPart) (getGraphicalViewer().getRootEditPart())).getZoomManager();
	}

	/**
	* Gets the edits the part factory.
	*
	* @return the edits the part factory
	*/
	protected abstract EditPartFactory getEditPartFactory();

	/**
	* Gets the context menu provider.
	*
	* @param viewer the viewer
	* @param zoom the zoom manager of the root edit part
	*
	* @return the context menu provider
	*/
	protected abstract ContextMenuProvider getContextMenuProvider(ScrollingGraphicalViewer viewer,
	ZoomManager zoomManager);

	/**
	* Creates the transfer drop target listener.
	*
	* @return the transfer drop target listener
	*/
	protected abstract TransferDropTargetListener createTransferDropTargetListener();

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.gef.ui.parts.GraphicalEditor#initializeGraphicalViewer()
	*/
	@Override
	protected void initializeGraphicalViewer() {
	GraphicalViewer viewer = getGraphicalViewer();
	viewer.setContents(getModel());
	// listen for dropped parts
	TransferDropTargetListener listener = createTransferDropTargetListener();
	if (listener != null) {
	viewer.addDropTargetListener(listener);
	}
	// enable drag from palette
	getGraphicalViewer().addDropTargetListener(new TemplateTransferDropTargetListener(getGraphicalViewer()));
	viewer.addDropTargetListener(new ParameterDropTargetListener(getGraphicalViewer()));
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.ui.IEditorPart#init(org.eclipse.ui.IEditorSite,
	* org.eclipse.ui.IEditorInput)
	*/
	@Override
	public void init(final IEditorSite site, final IEditorInput input) throws PartInitException {
	setModel(input);
	super.init(site, input);
	if (input.getName() != null) {
	setPartName(input.getName());
	}
	ActionRegistry registry = getActionRegistry();
	IActionBars bars = site.getActionBars();
	String id = ActionFactory.UNDO.getId();
	bars.setGlobalActionHandler(id, registry.getAction(id));
	id = ActionFactory.REDO.getId();
	bars.setGlobalActionHandler(id, registry.getAction(id));
	id = ActionFactory.DELETE.getId();
	bars.setGlobalActionHandler(id, registry.getAction(id));
	bars.updateActionBars();
	}

	protected void updateEditorTitle(String newTitel) {
	((UntypedEditorInput) getEditorInput()).setName(newTitel); // update the editor input so that the tooltip and
	// header bars are correct as well
	setPartName(newTitel);
	}

	/**
	* Sets the model.
	*
	* @param input the new model
	*/
	protected void setModel(final IEditorInput input) {

	setEditDomain(new DefaultEditDomain(this));
	getEditDomain().setDefaultTool(new AdvancedPanningSelectionTool());
	getEditDomain().setActiveTool(getEditDomain().getDefaultTool());
	// use one "System - Wide" command stack to avoid incositensies due to
	// undo redo
	getEditDomain().setCommandStack(SystemManager.INSTANCE.getCommandStack(getSystem()));
	}

	/**
	* Gets the system.
	*
	* @return the system
	*/
	public abstract AutomationSystem getSystem();

	/*
	* (non-Javadoc)
	*
	* @seeorg.eclipse.ui.part.EditorPart#doSave(org.eclipse.core.runtime.
	* IProgressMonitor)
	*/
	@Override
	public abstract void doSave(final IProgressMonitor monitor);

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.gef.ui.parts.GraphicalEditor#doSaveAs()
	*/
	@Override
	public abstract void doSaveAs();

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.gef.ui.parts.GraphicalEditor#isSaveAsAllowed()
	*/
	@Override
	public boolean isSaveAsAllowed() {
	return false;
	}

	/**
	* Gets the common key handler.
	*
	* @return the common key handler
	*/
	protected KeyHandler getCommonKeyHandler() {
	if (sharedKeyHandler == null) {
	sharedKeyHandler = new KeyHandler();
	sharedKeyHandler.put(KeyStroke.getPressed(SWT.DEL, 127, 0),
	getActionRegistry().getAction(ActionFactory.DELETE.getId()));
	sharedKeyHandler.put(KeyStroke.getPressed(SWT.F2, 0),
	getActionRegistry().getAction(GEFActionConstants.DIRECT_EDIT));
	sharedKeyHandler.put(/* CTRL + '=' */
	KeyStroke.getPressed('+', 0x3d, SWT.CTRL),
	getActionRegistry().getAction(GEFActionConstants.ZOOM_IN));

	}
	return sharedKeyHandler;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.gef.ui.parts.GraphicalEditorWithFlyoutPalette#getAdapter(
	* java.lang.Class)
	*/
	@SuppressWarnings("rawtypes")
	@Override
	public Object getAdapter(final Class type) {
	if (type == ZoomManager.class) {
	return getGraphicalViewer().getProperty(ZoomManager.class.toString());
	}
	if (type == IContentOutlinePage.class) {
	outlinePage = new DiagramOutlinePage(getGraphicalViewer());
	return outlinePage;
	}
	if (type == IPropertySheetPage.class) {
	return new TabbedPropertySheetPage(this);
	}

	return super.getAdapter(type);
	}

	/**
	* Gets the editor.
	*
	* @return the editor
	*/
	protected FigureCanvas getEditor() {
	return (FigureCanvas) getGraphicalViewer().getControl();
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.gef.ui.parts.GraphicalEditor#createActions()
	*/
	@SuppressWarnings("unchecked")
	@Override
	protected void createActions() {
	ActionRegistry registry = getActionRegistry();
	IAction action;

	action = new DirectEditAction((IWorkbenchPart) this);
	registry.registerAction(action);
	getSelectionActions().add(action.getId());

	action = new AlignmentAction((IWorkbenchPart) this, PositionConstants.LEFT);
	registry.registerAction(action);
	getSelectionActions().add(action.getId());

	action = new AlignmentAction((IWorkbenchPart) this, PositionConstants.RIGHT);
	registry.registerAction(action);
	getSelectionActions().add(action.getId());

	action = new AlignmentAction((IWorkbenchPart) this, PositionConstants.TOP);
	registry.registerAction(action);
	getSelectionActions().add(action.getId());

	action = new AlignmentAction((IWorkbenchPart) this, PositionConstants.BOTTOM);
	registry.registerAction(action);
	getSelectionActions().add(action.getId());

	action = new AlignmentAction((IWorkbenchPart) this, PositionConstants.CENTER);
	registry.registerAction(action);
	getSelectionActions().add(action.getId());

	action = new AlignmentAction((IWorkbenchPart) this, PositionConstants.MIDDLE);
	registry.registerAction(action);
	getSelectionActions().add(action.getId());

	super.createActions();

	// remove the default print action and register our own one
	registry.removeAction(registry.getAction(ActionFactory.PRINT.getId()));
	action = new PrintPreviewAction(getGraphicalViewer());
	registry.registerAction(action);
	getEditorSite().getActionBars().setGlobalActionHandler(ActionFactory.PRINT.getId(), action);
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.gef.ui.parts.GraphicalEditor#getSelectionActions()
	*/
	@SuppressWarnings("rawtypes")
	@Override
	protected List getSelectionActions() {
	return super.getSelectionActions();
	}

	/**
	* Gets the sel actions.
	*
	* @return the sel actions
	*/
	@SuppressWarnings("rawtypes")
	public List getSelActions() {
	return getSelectionActions();
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.ui.IWorkbenchPart#dispose()
	*/
	@Override
	public void dispose() {
	outlinePage = null;
	super.dispose();
	}

	/**
	* Returns the GraphicalViewer of this Editor.
	*
	* @return the GraphicalViewer
	*/
	public GraphicalViewer getViewer() {
	return getGraphicalViewer();
	}

	/*
	* (non-Javadoc)
	*
	* @seeorg.eclipse.gef.ui.parts.GraphicalEditorWithFlyoutPalette#
	* createPaletteViewerProvider()
	*/
	@Override
	protected PaletteViewerProvider createPaletteViewerProvider() {
	return new PaletteViewerProvider(getEditDomain()) {
	@Override
	protected void configurePaletteViewer(final PaletteViewer viewer) {
	super.configurePaletteViewer(viewer);
	viewer.addDragSourceListener(new TemplateTransferDragSourceListener(viewer));
	}
	};
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.ui.views.properties.tabbed.ITabbedPropertySheetPageContributor
	* #getContributorId()
	*/
	@Override
	public String getContributorId() {
	return PROPERTY_CONTRIBUTOR_ID;
	}

	}