| /******************************************************************************* |
| * Copyright (c) 2020 Obeo. |
| * 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: |
| * Obeo - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.emf.compare.diagram.ide.ui.internal.contentmergeviewer.diagram; |
| |
| import static com.google.common.base.Predicates.instanceOf; |
| |
| import com.google.common.base.Predicate; |
| import com.google.common.collect.HashMultimap; |
| import com.google.common.collect.Multimap; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| |
| import org.eclipse.draw2d.IFigure; |
| import org.eclipse.draw2d.PolylineConnection; |
| import org.eclipse.draw2d.geometry.Rectangle; |
| import org.eclipse.emf.compare.Diff; |
| import org.eclipse.emf.compare.Match; |
| import org.eclipse.emf.compare.diagram.ide.ui.internal.contentmergeviewer.diagram.figures.DecoratorFigure; |
| import org.eclipse.emf.compare.diagram.ide.ui.internal.contentmergeviewer.diagram.figures.EdgeFigure; |
| import org.eclipse.emf.compare.diagram.ide.ui.internal.contentmergeviewer.diagram.figures.NodeFigure; |
| import org.eclipse.emf.compare.diagram.ide.ui.internal.contentmergeviewer.diagram.figures.NodeListFigure; |
| import org.eclipse.emf.compare.diagram.internal.extensions.DiagramDiff; |
| import org.eclipse.emf.compare.ide.ui.internal.configuration.EMFCompareConfiguration; |
| import org.eclipse.emf.compare.rcp.ui.mergeviewer.ICompareColor; |
| import org.eclipse.emf.compare.rcp.ui.mergeviewer.IMergeViewer.MergeViewerSide; |
| import org.eclipse.gef.EditPart; |
| import org.eclipse.gmf.runtime.notation.Edge; |
| import org.eclipse.gmf.runtime.notation.View; |
| |
| /** |
| * Marker manager to create, hide or reveal marker figures related to deleted or added graphical objects. |
| * |
| * @author <a href="mailto:cedric.notot@obeo.fr">Cedric Notot</a> |
| */ |
| public class MarkerManager extends AbstractDecoratorManager { |
| |
| /** |
| * Marker represented by a <code>figure</code> on a <code>layer</code>, from the given <code>side</code> |
| * of the merge viewer. An edit part may be linked to the <code>figure</code> in some cases.<br> |
| * The marker is related to a <code>difference</code> and it is binded with the reference view and figure. |
| * |
| * @author <a href="mailto:cedric.notot@obeo.fr">Cedric Notot</a> |
| */ |
| private class Marker extends AbstractDecorator { |
| |
| /** |
| * Constructor. |
| * |
| * @param layer |
| * {@link Marker#fLayer}. |
| * @param side |
| * {@link Marker#fSide}. |
| * @param originView |
| * {@link Marker#fOriginView}. |
| * @param originFigure |
| * {@link Marker#fOriginFigure}. |
| * @param diff |
| * {@link Marker#fDifference}. |
| */ |
| Marker(IFigure layer, MergeViewerSide side, View originView, IFigure originFigure, Diff diff) { |
| setLayer(layer); |
| setSide(side); |
| setOriginView(originView); |
| setOriginFigure(originFigure); |
| setDifference(diff); |
| } |
| } |
| |
| /** Registry of created markers, indexed by difference. */ |
| private Multimap<Diff, Marker> fMarkerRegistry = HashMultimap.create(); |
| |
| /** |
| * Constructor. |
| * |
| * @param compareConfiguration |
| * The compare configuration of the viewer. |
| * @param left |
| * The left area of the viewer. |
| * @param right |
| * The right area of the viewer. |
| * @param ancestor |
| * The ancestor area of the viewer. |
| * @param color |
| * The color of the difference. |
| */ |
| public MarkerManager(EMFCompareConfiguration compareConfiguration, DiagramMergeViewer left, |
| DiagramMergeViewer right, DiagramMergeViewer ancestor, ICompareColor color) { |
| super(compareConfiguration, left, right, ancestor, color); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.compare.diagram.ide.ui.internal.contentmergeviewer.diagram.AbstractDecoratorManager#getReferenceViews( |
| * org.eclipse.emf.compare.diagram.internal.extensions.DiagramDiff) |
| */ |
| @Override |
| protected List<View> getReferenceViews(DiagramDiff difference) { |
| List<View> result = new ArrayList<View>(); |
| Match matchValue = getCompareConfiguration().getComparison().getMatch(difference.getView()); |
| if (matchValue != null) { |
| if (matchValue.getLeft() != null) { |
| result.add((View)matchValue.getLeft()); |
| } |
| if (matchValue.getRight() != null) { |
| result.add((View)matchValue.getRight()); |
| } |
| if (getCompareConfiguration().getComparison().isThreeWay()) { |
| switch (difference.getKind()) { |
| case DELETE: |
| case CHANGE: |
| case MOVE: |
| result.add((View)matchValue.getOrigin()); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| return result; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.compare.diagram.ide.ui.internal.contentmergeviewer.diagram.AbstractDecoratorManager#getTargetSide(org.eclipse.emf.compare.Match, |
| * org.eclipse.gmf.runtime.notation.View) |
| */ |
| @Override |
| public MergeViewerSide getTargetSide(Match match, View referenceView) { |
| return getSide(referenceView); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.compare.diagram.ide.ui.internal.contentmergeviewer.diagram.AbstractDecoratorManager#createAndRegisterDecorator(org.eclipse.emf.compare.Diff, |
| * org.eclipse.gmf.runtime.notation.View, org.eclipse.draw2d.IFigure, |
| * org.eclipse.emf.compare.rcp.ui.mergeviewer.IMergeViewer.MergeViewerSide) |
| */ |
| @Override |
| protected Marker createAndRegisterDecorator(Diff diff, View referenceView, IFigure referenceFigure, |
| MergeViewerSide targetSide) { |
| Marker marker = createMarker(diff, referenceView, referenceFigure, targetSide); |
| if (marker != null) { |
| fMarkerRegistry.put(diff, marker); |
| } |
| return marker; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.compare.diagram.ide.ui.internal.contentmergeviewer.diagram.AbstractDecoratorManager#removeDecorators(org.eclipse.emf.compare.Diff) |
| */ |
| @Override |
| public void removeDecorators(Diff difference) { |
| fMarkerRegistry.removeAll(difference); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.compare.diagram.ide.ui.internal.contentmergeviewer.diagram.AbstractDecoratorManager#removeAll() |
| */ |
| @Override |
| public void removeAll() { |
| fMarkerRegistry.clear(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.compare.diagram.ide.ui.internal.contentmergeviewer.diagram.AbstractDecoratorManager#getDecorators(org.eclipse.emf.compare.Diff) |
| */ |
| @Override |
| protected Collection<Marker> getDecorators(Diff difference) { |
| return fMarkerRegistry.get(difference); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.compare.diagram.ide.ui.internal.contentmergeviewer.diagram.AbstractDecoratorManager#handleAddDecorator(org.eclipse.emf.compare.diagram.ide.ui.internal.contentmergeviewer.diagram.AbstractDecoratorManager.AbstractDecorator, |
| * org.eclipse.draw2d.IFigure, org.eclipse.draw2d.IFigure, boolean) |
| */ |
| @Override |
| protected void handleAddDecorator(AbstractDecorator decorator, IFigure parent, IFigure toAdd, |
| boolean isMain) { |
| super.handleAddDecorator(decorator, parent, toAdd, isMain); |
| DiagramMergeViewer viewer = getViewer(decorator.getSide()); |
| EditPart editPart = viewer.getEditPart(decorator.getOriginView()); |
| if (editPart != null) { |
| viewer.getGraphicalViewer().reveal(editPart); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.compare.diagram.ide.ui.internal.contentmergeviewer.diagram.AbstractDecoratorManager#goodCandidate() |
| * <br> |
| * All graphical differences are concerned. |
| */ |
| @Override |
| protected Predicate<Diff> goodCandidate() { |
| return new Predicate<Diff>() { |
| public boolean apply(Diff difference) { |
| return instanceOf(DiagramDiff.class).apply(difference); |
| } |
| }; |
| } |
| |
| /** |
| * It creates a new marker from the given difference, view and figure. |
| * |
| * @param diff |
| * The related difference used as index for the main marker. |
| * @param referenceView |
| * The reference view as base for creation of the marker. |
| * @param referenceFigure |
| * The reference figure as base for creation of the marker. |
| * @param side |
| * The side where the marker has to be created. |
| * @return The phantom or null if the target layer is not found. |
| */ |
| private Marker createMarker(Diff diff, View referenceView, IFigure referenceFigure, |
| MergeViewerSide side) { |
| |
| IFigure referenceLayer = getLayer(referenceView, side); |
| if (referenceLayer != null) { |
| Rectangle referenceBounds = referenceFigure.getBounds().getCopy(); |
| translateCoordinates(referenceFigure, referenceLayer, referenceBounds); |
| |
| DecoratorFigure markerFigure = null; |
| |
| Marker marker = new Marker(referenceLayer, side, referenceView, referenceFigure, diff); |
| |
| if (isNodeList(referenceView)) { |
| markerFigure = new NodeListFigure(diff, isThreeWay(), getCompareColor(), referenceFigure, |
| referenceBounds, false); |
| } else if (referenceView instanceof Edge && referenceFigure instanceof PolylineConnection) { |
| markerFigure = new EdgeFigure(diff, isThreeWay(), getCompareColor(), referenceFigure, |
| referenceBounds, false); |
| } |
| |
| // Default case: Nodes |
| if (markerFigure == null) { |
| markerFigure = new NodeFigure(diff, isThreeWay(), getCompareColor(), referenceFigure, |
| referenceBounds, false); |
| } |
| |
| marker.setDecoratorFigure(markerFigure); |
| return marker; |
| } |
| |
| return null; |
| |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.compare.diagram.ide.ui.internal.contentmergeviewer.diagram.IDecoratorManager#hideAll() |
| */ |
| public void hideAll() { |
| for (Marker marker : fMarkerRegistry.values()) { |
| handleDeleteDecorator(marker, marker.getLayer(), marker.getFigure()); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.compare.diagram.ide.ui.internal.contentmergeviewer.diagram.IDecoratorManager#getAllDecorators() |
| */ |
| public Collection<AbstractDecorator> getAllDecorators() { |
| Collection<AbstractDecorator> markers = new ArrayList<AbstractDecorator>(); |
| for (AbstractDecorator marker : fMarkerRegistry.values()) { |
| markers.add(marker); |
| } |
| return markers; |
| } |
| |
| } |
