| /****************************************************************************** |
| * Copyright (c) 2002, 2010 IBM Corporation and others. |
| * 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: |
| * IBM Corporation - initial API and implementation |
| ****************************************************************************/ |
| |
| package org.eclipse.gmf.runtime.diagram.ui.editparts; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.draw2d.XYLayout; |
| import org.eclipse.draw2d.geometry.Dimension; |
| import org.eclipse.draw2d.geometry.Point; |
| import org.eclipse.draw2d.geometry.Rectangle; |
| import org.eclipse.emf.common.notify.Notification; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.gef.EditPart; |
| import org.eclipse.gef.EditPolicy; |
| import org.eclipse.gef.GraphicalEditPart; |
| import org.eclipse.gef.Request; |
| import org.eclipse.gef.RequestConstants; |
| import org.eclipse.gef.commands.Command; |
| import org.eclipse.gef.commands.CompoundCommand; |
| import org.eclipse.gef.requests.SelectionRequest; |
| import org.eclipse.gmf.runtime.diagram.ui.actions.ActionIds; |
| import org.eclipse.gmf.runtime.diagram.ui.editpolicies.ComponentEditPolicy; |
| import org.eclipse.gmf.runtime.diagram.ui.editpolicies.ContainerEditPolicy; |
| import org.eclipse.gmf.runtime.diagram.ui.editpolicies.EditPolicyRoles; |
| import org.eclipse.gmf.runtime.diagram.ui.editpolicies.PopupBarEditPolicy; |
| import org.eclipse.gmf.runtime.diagram.ui.editpolicies.ResizableShapeEditPolicy; |
| import org.eclipse.gmf.runtime.diagram.ui.l10n.DiagramColorRegistry; |
| import org.eclipse.gmf.runtime.diagram.ui.requests.ArrangeRequest; |
| import org.eclipse.gmf.runtime.emf.core.util.EMFCoreUtil; |
| import org.eclipse.gmf.runtime.notation.NotationPackage; |
| import org.eclipse.gmf.runtime.notation.View; |
| |
| /** |
| * the base controler for shapes |
| * @author mmostafa, crevells |
| * |
| */ |
| public abstract class ShapeEditPart extends TopGraphicEditPart implements IPrimaryEditPart { |
| |
| /** |
| * A <code>ContainerEditPolicy</code> for a <code>ShapeEditPart</code> that |
| * lays out compartments contained by the host editpart for |
| * "arrange selection" request. |
| * <p> |
| * <b>Note:</b> it is not used by default, because a graph layout algorithm |
| * may support arrange of 1 node in a graph. Therefore, the expected |
| * behaviour is non-deterministic and is up to the API client |
| * |
| * @since 2.1 |
| */ |
| protected static class ShapeContainerEditPolicy |
| extends ContainerEditPolicy { |
| |
| /** |
| * Constructor for ShapeContainerEditPolicy |
| * @since 1.4 |
| */ |
| public ShapeContainerEditPolicy() { |
| super(); |
| } |
| |
| protected Command getArrangeCommand(ArrangeRequest request) { |
| if (ActionIds.ACTION_ARRANGE_SELECTION.equals(request.getType()) |
| || ActionIds.ACTION_TOOLBAR_ARRANGE_SELECTION.equals(request |
| .getType())) { |
| List parts = request.getPartsToArrange(); |
| if (parts.size() == 1 && parts.contains(getHost())) { |
| // Create arrange commands for the compartments within this shape. |
| CompoundCommand cc = new CompoundCommand(); |
| for (Iterator iterator = getHost().getChildren().iterator(); iterator |
| .hasNext();) { |
| Object childEP = iterator.next(); |
| if (childEP instanceof CompartmentEditPart |
| && ((CompartmentEditPart) childEP).getContentPane() |
| .getLayoutManager() instanceof XYLayout) { |
| ArrangeRequest newRequest = createRequest(request, |
| ((CompartmentEditPart) childEP).getChildren()); |
| cc.add(super.getArrangeCommand(newRequest)); |
| } |
| } |
| return cc; |
| } |
| } |
| return super.getArrangeCommand(request); |
| } |
| |
| private ArrangeRequest createRequest(ArrangeRequest request, |
| List partsToArrange) { |
| ArrangeRequest newRequest = new ArrangeRequest((String) request |
| .getType(), request.getLayoutType()); |
| newRequest.setExtendedData(request.getExtendedData()); |
| newRequest.setPartsToArrange(partsToArrange); |
| return newRequest; |
| } |
| |
| @Override |
| public EditPart getTargetEditPart(Request request) { |
| return understandsRequest(request) ? getHost() : null; |
| } |
| |
| } |
| |
| /** |
| * copnstructor |
| * @param view the view controlled by this edit part |
| */ |
| public ShapeEditPart(View view) { |
| super(view); |
| } |
| |
| |
| protected void createDefaultEditPolicies() { |
| super.createDefaultEditPolicies(); |
| installEditPolicy(EditPolicy.CONTAINER_ROLE, new ContainerEditPolicy()); |
| installEditPolicy(EditPolicy.COMPONENT_ROLE, new ComponentEditPolicy()); |
| installEditPolicy(EditPolicyRoles.POPUPBAR_ROLE, new PopupBarEditPolicy()); |
| } |
| |
| /** |
| * gets the location of this edit part's Figure |
| * @return <code>Point</code> |
| */ |
| final public Point getLocation() { |
| return getFigure().getBounds().getLocation(); |
| } |
| |
| /** |
| * gets the size of this edit part's Figure |
| * @return <code>Dimension</code> |
| */ |
| final public Dimension getSize() { |
| return getFigure().getBounds().getSize(); |
| } |
| |
| protected void handleNotificationEvent(Notification notification) { |
| Object feature = notification.getFeature(); |
| if (NotationPackage.eINSTANCE.getSize_Width().equals(feature) |
| || NotationPackage.eINSTANCE.getSize_Height().equals(feature) |
| || NotationPackage.eINSTANCE.getLocation_X().equals(feature) |
| || NotationPackage.eINSTANCE.getLocation_Y().equals(feature)) { |
| refreshBounds(); |
| } |
| else if (NotationPackage.eINSTANCE.getFillStyle_FillColor().equals(feature)) { |
| Integer c = (Integer) notification.getNewValue(); |
| setBackgroundColor(DiagramColorRegistry.getInstance().getColor(c)); |
| } |
| else if (NotationPackage.eINSTANCE.getLineStyle_LineColor().equals(feature)) { |
| Integer c = (Integer) notification.getNewValue(); |
| setForegroundColor(DiagramColorRegistry.getInstance().getColor(c)); |
| } |
| else if (NotationPackage.eINSTANCE.getFontStyle().getEAllAttributes().contains(feature)) |
| refreshFont(); |
| else if (notification.getFeature() == NotationPackage.eINSTANCE.getView_Element() |
| && ((EObject)notification.getNotifier())== getNotationView()) |
| handleMajorSemanticChange(); |
| else if (notification.getEventType() == EventType.UNRESOLVE && hasNotationView()){ |
| // make sure we refresh if the unresolved element is the edit |
| // part's semantic element the comparison should be id based not |
| // instance based, since get element will resolve the element |
| // and resolving the element will result in returning a different |
| // instance than the proxy we had as a notifier |
| EObject notifier = (EObject) notification.getNotifier(); |
| EObject viewElement = getNotationView().getElement(); |
| if (viewElement!=null){ |
| String id1 = EMFCoreUtil.getProxyID(notifier); |
| String id2 = EMFCoreUtil.getProxyID(viewElement); |
| if (id1.equals(id2)) { |
| handleMajorSemanticChange(); |
| } |
| } |
| } |
| else |
| super.handleNotificationEvent(notification); |
| } |
| |
| |
| /** |
| * refresh the bounds |
| */ |
| protected void refreshBounds() { |
| int width = ((Integer) getStructuralFeatureValue(NotationPackage.eINSTANCE.getSize_Width())).intValue(); |
| int height = ((Integer) getStructuralFeatureValue(NotationPackage.eINSTANCE.getSize_Height())).intValue(); |
| Dimension size = new Dimension(width, height); |
| int x = ((Integer) getStructuralFeatureValue(NotationPackage.eINSTANCE.getLocation_X())).intValue(); |
| int y = ((Integer) getStructuralFeatureValue(NotationPackage.eINSTANCE.getLocation_Y())).intValue(); |
| Point loc = new Point(x, y); |
| ((GraphicalEditPart) getParent()).setLayoutConstraint( |
| this, |
| getFigure(), |
| new Rectangle(loc, size)); |
| } |
| |
| protected void refreshVisuals() { |
| super.refreshVisuals(); |
| refreshBounds(); |
| refreshBackgroundColor(); |
| refreshForegroundColor(); |
| refreshFont(); |
| } |
| |
| /** |
| * Return the editpolicy to be installed as an <code>EditPolicy#PRIMARY_DRAG_ROLE</code> |
| * role. This method is typically called by <code>LayoutEditPolicy#createChildEditPolicy()</code> |
| * @return EditPolicy |
| */ |
| public EditPolicy getPrimaryDragEditPolicy() { |
| EditPolicy policy = getEditPolicy(EditPolicy.PRIMARY_DRAG_ROLE); |
| return policy != null ? policy : new ResizableShapeEditPolicy(); |
| } |
| |
| public EditPart getTargetEditPart(Request request) { |
| |
| if (RequestConstants.REQ_SELECTION == request.getType() |
| && getParent() instanceof GroupEditPart) { |
| |
| // If the shape is already selected then do not give up selection to |
| // the group. |
| if (getSelected() != SELECTED_NONE) { |
| return super.getTargetEditPart(request); |
| } |
| |
| GroupEditPart groupEP = (GroupEditPart) getParent(); |
| |
| // Normally when a shape is not selected, the right-mouse button |
| // will cause the shape to be selected and the context menu to show. |
| // If the shape is in a group, we do not want this behavior as we |
| // want the context menu of the group to show. |
| if (getSelected() == SELECTED_NONE |
| && (request instanceof SelectionRequest) |
| && ((SelectionRequest) request).getLastButtonPressed() == 3) { |
| return groupEP.getTargetEditPart(request); |
| } |
| |
| // If the group is currently selected, then this is the second click |
| // then the shape should be selected. |
| if (groupEP.getSelected() != SELECTED_NONE) { |
| return super.getTargetEditPart(request); |
| } |
| |
| // If any of the group's children are currently selected then the |
| // selection of another child of the group will result in the child |
| // being selected and not the group. |
| for (Iterator iter = groupEP.getChildren().iterator(); iter |
| .hasNext();) { |
| EditPart childEP = (EditPart) iter.next(); |
| if (childEP.getSelected() != SELECTED_NONE) { |
| return super.getTargetEditPart(request); |
| } |
| |
| } |
| |
| // otherwise we want the group to get selected |
| return groupEP.getTargetEditPart(request); |
| } |
| |
| return super.getTargetEditPart(request); |
| } |
| |
| |
| } |
