| /******************************************************************************* |
| * Copyright (c) 2008, 2015 THALES GLOBAL SERVICES and others. |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Obeo - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.sirius.diagram.ui.graphical.edit.policies; |
| |
| import java.util.List; |
| |
| import org.eclipse.draw2d.geometry.Dimension; |
| import org.eclipse.draw2d.geometry.Point; |
| import org.eclipse.draw2d.geometry.PrecisionPoint; |
| import org.eclipse.draw2d.geometry.PrecisionRectangle; |
| import org.eclipse.draw2d.geometry.Rectangle; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.transaction.TransactionalEditingDomain; |
| import org.eclipse.emf.transaction.util.TransactionUtil; |
| import org.eclipse.gef.Request; |
| import org.eclipse.gef.commands.Command; |
| import org.eclipse.gef.commands.UnexecutableCommand; |
| import org.eclipse.gef.editparts.AbstractGraphicalEditPart; |
| import org.eclipse.gef.handles.MoveHandle; |
| import org.eclipse.gef.requests.AlignmentRequest; |
| import org.eclipse.gef.requests.ChangeBoundsRequest; |
| import org.eclipse.gef.tools.ResizeTracker; |
| import org.eclipse.gmf.runtime.common.core.command.ICommand; |
| import org.eclipse.gmf.runtime.diagram.ui.commands.CommandProxy; |
| import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy; |
| import org.eclipse.gmf.runtime.diagram.ui.commands.SetBoundsCommand; |
| import org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart; |
| import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart; |
| import org.eclipse.gmf.runtime.diagram.ui.editpolicies.ResizableShapeEditPolicy; |
| import org.eclipse.gmf.runtime.emf.commands.core.command.CompositeTransactionalCommand; |
| import org.eclipse.gmf.runtime.emf.core.util.EObjectAdapter; |
| import org.eclipse.gmf.runtime.gef.ui.figures.DefaultSizeNodeFigure; |
| import org.eclipse.sirius.diagram.DNode; |
| import org.eclipse.sirius.diagram.LabelPosition; |
| import org.eclipse.sirius.diagram.NodeStyle; |
| import org.eclipse.sirius.diagram.description.DiagramElementMapping; |
| import org.eclipse.sirius.diagram.ui.edit.api.part.IDiagramNodeEditPart; |
| import org.eclipse.sirius.diagram.ui.edit.internal.validators.ResizeValidator; |
| import org.eclipse.sirius.diagram.ui.internal.edit.commands.CenterEditPartEdgesCommand; |
| import org.eclipse.sirius.diagram.ui.internal.edit.commands.ChangeBendpointsOfEdgesCommand; |
| import org.eclipse.sirius.diagram.ui.internal.edit.commands.ChildrenAdjustmentCommand; |
| import org.eclipse.sirius.diagram.ui.provider.Messages; |
| import org.eclipse.sirius.diagram.ui.tools.api.graphical.edit.styles.IStyleConfigurationRegistry; |
| import org.eclipse.sirius.diagram.ui.tools.api.graphical.edit.styles.StyleConfiguration; |
| import org.eclipse.sirius.diagram.ui.tools.internal.ui.NoCopyDragEditPartsTrackerEx; |
| import org.eclipse.sirius.ext.gmf.runtime.gef.ui.figures.SiriusWrapLabel; |
| import org.eclipse.sirius.viewpoint.Style; |
| |
| /** |
| * The specific edit policy to redefine auto size. |
| * |
| * @author ymortier |
| */ |
| public class AirResizableEditPolicy extends ResizableShapeEditPolicy { |
| |
| /** |
| * {@inheritDoc} |
| * |
| * Use our own ResizeTracker to set the "flag" |
| * SiriusResizeTracker.FIX_CHILDREN_KEY when the corresponding shortcut is |
| * pressed. |
| */ |
| @Override |
| protected ResizeTracker getResizeTracker(int direction) { |
| return new SiriusResizeTracker((GraphicalEditPart) getHost(), direction); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.gmf.runtime.diagram.ui.editpolicies.ResizableShapeEditPolicy#getAutoSizeCommand(org.eclipse.gef.Request) |
| */ |
| @Override |
| protected Command getAutoSizeCommand(final Request request) { |
| if (this.getHost() instanceof IDiagramNodeEditPart) { |
| final EObject eObject = ((IGraphicalEditPart) this.getHost()).resolveSemanticElement(); |
| if (eObject instanceof DNode) { |
| final NodeStyle nodeStyle = (NodeStyle) ((DNode) eObject).getStyle(); |
| if (nodeStyle != null && nodeStyle.getLabelPosition() == LabelPosition.NODE_LITERAL) { |
| final DNode viewNode = (DNode) eObject; |
| final SiriusWrapLabel label = ((IDiagramNodeEditPart) getHost()).getNodeLabel(); |
| final Style style = viewNode.getStyle(); |
| final DiagramElementMapping mapping = viewNode.getDiagramElementMapping(); |
| final DefaultSizeNodeFigure defaultSizeNodeFigure = (DefaultSizeNodeFigure) ((IDiagramNodeEditPart) this.getHost()).getMainFigure(); |
| final StyleConfiguration styleConfiguration = IStyleConfigurationRegistry.INSTANCE.getStyleConfiguration(mapping, style); |
| final Dimension newDim = styleConfiguration.fitToText(viewNode, label, defaultSizeNodeFigure); |
| final TransactionalEditingDomain transactionalEditingDomain = TransactionUtil.getEditingDomain(viewNode); |
| final SetBoundsCommand setBoundsCommand = new SetBoundsCommand(transactionalEditingDomain, Messages.AirResizableEditPolicy_autoSizeCommandLabel, |
| new EObjectAdapter(((IGraphicalEditPart) this.getHost()).getNotationView()), newDim); |
| return new ICommandProxy(setBoundsCommand); |
| } |
| } |
| } |
| return super.getAutoSizeCommand(request); |
| } |
| |
| /** |
| * |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.gef.editpolicies.NonResizableEditPolicy#getMoveCommand(org.eclipse.gef.requests.ChangeBoundsRequest) |
| */ |
| @Override |
| protected Command getMoveCommand(final ChangeBoundsRequest request) { |
| Command result = super.getMoveCommand(request); |
| |
| if (getHost().getParent() != null) { |
| if (getHost() instanceof IGraphicalEditPart) { |
| IGraphicalEditPart hostPart = (IGraphicalEditPart) getHost(); |
| CompositeTransactionalCommand ctc = new CompositeTransactionalCommand(hostPart.getEditingDomain(), result.getLabel()); |
| ctc.add(new CommandProxy(result)); |
| ctc.add(new ChangeBendpointsOfEdgesCommand(hostPart, new PrecisionPoint(request.getMoveDelta()))); |
| result = new ICommandProxy(ctc); |
| } |
| return result; |
| } else { |
| return null; |
| } |
| } |
| |
| @Override |
| protected Command getAlignCommand(AlignmentRequest request) { |
| Command result = super.getAlignCommand(request); |
| |
| Point delta = request.getMoveDelta(); |
| if (getHost() instanceof AbstractGraphicalEditPart) { |
| Rectangle locationAndSize = new PrecisionRectangle(((AbstractGraphicalEditPart) getHost()).getFigure().getBounds()); |
| ((AbstractGraphicalEditPart) getHost()).getFigure().translateToAbsolute(locationAndSize); |
| Rectangle newLocationAndSize = request.getTransformedRectangle(locationAndSize); |
| delta = newLocationAndSize.getTopLeft().getTranslated(locationAndSize.getTopLeft().getNegated()); |
| } |
| if (getHost() instanceof IGraphicalEditPart) { |
| IGraphicalEditPart hostPart = (IGraphicalEditPart) getHost(); |
| CompositeTransactionalCommand ctc = new CompositeTransactionalCommand(hostPart.getEditingDomain(), result.getLabel()); |
| ctc.add(new CommandProxy(result)); |
| // The primary selection is ignored because it is not moved (it is |
| // the reference used to align other selected edit parts). |
| ctc.add(new ChangeBendpointsOfEdgesCommand(hostPart, new PrecisionPoint(delta), true)); |
| result = new ICommandProxy(ctc); |
| } |
| return result; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.gef.editpolicies.ResizableEditPolicy#createSelectionHandles() |
| */ |
| @Override |
| protected List createSelectionHandles() { |
| List selectionHandles = super.createSelectionHandles(); |
| for (Object selectionHandle : selectionHandles) { |
| // For each created MoveHandle |
| if (selectionHandle instanceof MoveHandle) { |
| // We set a drag tracker that will not cause the duplication of |
| // graphical elements when holding "Ctrl" key down and moving an |
| // element |
| ((MoveHandle) selectionHandle).setDragTracker(new NoCopyDragEditPartsTrackerEx(getHost())); |
| } |
| } |
| return selectionHandles; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.gef.editpolicies.ResizableEditPolicy#getResizeCommand(org.eclipse.gef.requests.ChangeBoundsRequest) |
| */ |
| @Override |
| protected Command getResizeCommand(ChangeBoundsRequest request) { |
| Command result = UnexecutableCommand.INSTANCE; |
| |
| boolean valid = true; |
| ResizeValidator resizeValidator = new ResizeValidator(request); |
| valid = resizeValidator.validate(); |
| |
| if (valid) { |
| ICommand solution = buildResizeCommand(request); |
| if (solution != null) { |
| result = new ICommandProxy(solution); |
| } |
| } |
| return result; |
| } |
| |
| /** |
| * Build a specific command from the request that resize the edit part as |
| * the normal command and call completeResizeCommand to add sub-commands to |
| * handle children/sibling/parent elements if required. Then add a command |
| * to keep the edges centered if needed. |
| * |
| * @param request |
| * the resize request |
| * @return <code>null</code> or a Command |
| */ |
| private ICommand buildResizeCommand(ChangeBoundsRequest request) { |
| ICommand result = null; |
| Command cmd = super.getResizeCommand(request); |
| if (getHost() instanceof IGraphicalEditPart) { |
| CompositeTransactionalCommand ctc = new CompositeTransactionalCommand(((IGraphicalEditPart) getHost()).getEditingDomain(), cmd.getLabel()); |
| ctc.add(new CommandProxy(cmd)); |
| completeResizeCommand(ctc, request); |
| // we add a command to keep the edges centered (if they should be) |
| ctc.add(new CenterEditPartEdgesCommand((IGraphicalEditPart) getHost(), request)); |
| result = ctc; |
| } else if (cmd != null) { |
| result = new CommandProxy(cmd); |
| } |
| return result; |
| } |
| |
| /** |
| * Add a command to change the location of children if needed: |
| * <UL> |
| * <LI>border nodes: to avoid an unexpected change of side</LI> |
| * <LI>children nodes (container or not): The GMF coordinates of these nodes |
| * are moved in order to keep these nodes at the same location graphically |
| * (on screen). The GMF coordinates of these nodes are relative to its |
| * parent.</LI> |
| * </UL> |
| * |
| * This method can be overridden to add specific resize task to affect |
| * children, parent or sibling elements. |
| * |
| * @param ctc |
| * the {@link CompositeTransactionalCommand} to complete. |
| * @param request |
| * the initial request. |
| * */ |
| protected void completeResizeCommand(CompositeTransactionalCommand ctc, ChangeBoundsRequest request) { |
| ctc.add(new ChildrenAdjustmentCommand((IGraphicalEditPart) getHost(), request)); |
| } |
| } |
