| /****************************************************************************** |
| * Copyright (c) 2004, 2006 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.actions; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.draw2d.geometry.Point; |
| import org.eclipse.draw2d.geometry.Rectangle; |
| import org.eclipse.gef.EditPart; |
| import org.eclipse.gef.EditPartViewer; |
| import org.eclipse.gef.GraphicalEditPart; |
| import org.eclipse.gef.Request; |
| import org.eclipse.gef.RequestConstants; |
| import org.eclipse.gef.RootEditPart; |
| import org.eclipse.gef.requests.CreateRequest; |
| import org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionEditPart; |
| import org.eclipse.gmf.runtime.diagram.ui.editparts.ShapeCompartmentEditPart; |
| import org.eclipse.gmf.runtime.diagram.ui.editparts.ShapeEditPart; |
| import org.eclipse.gmf.runtime.draw2d.ui.figures.PolylineConnectionEx; |
| import org.eclipse.gmf.runtime.draw2d.ui.mapmode.MapModeUtil; |
| import org.eclipse.gmf.runtime.notation.View; |
| import org.eclipse.jface.viewers.StructuredSelection; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.ui.IWorkbenchPage; |
| |
| /** |
| * Provides support for action which add an attached shapes to another shape. |
| * Puts the added shape in direct edit mode after all the shapes and connections |
| * are created. |
| * |
| * @author jcorchis |
| */ |
| public abstract class AttachShapeAction |
| extends DiagramAction { |
| |
| /** |
| * Constructor |
| * |
| * @param workbenchPage |
| * the active workbenchPage |
| */ |
| public AttachShapeAction(IWorkbenchPage workbenchPage) { |
| super(workbenchPage); |
| } |
| |
| /** |
| * Method selectAddedObject. Selects Select the newly added shape view by |
| * default |
| * |
| * @param request |
| * the request object that holds a reference for the newly |
| * created object |
| * @param viewer |
| * the viewer that contains the shapes to be selected. The shapes |
| * correspond to the newly created object. |
| */ |
| protected void selectAddedObject(EditPartViewer viewer, |
| CreateRequest request) { |
| final Object model = request.getNewObject(); |
| if (model == null || !(model instanceof Collection)) |
| return; |
| final Iterator models = ((Collection) model).iterator(); |
| final List editparts = new ArrayList(); |
| |
| while (models.hasNext()) { |
| IAdaptable viewAdapter = (IAdaptable) models.next(); |
| if (viewAdapter != null) { |
| Object editPart = viewer.getEditPartRegistry().get( |
| viewAdapter.getAdapter(View.class)); |
| if (editPart != null) |
| editparts.add(editPart); |
| } |
| } |
| |
| if (!editparts.isEmpty()) { |
| viewer.setSelection(new StructuredSelection(editparts)); |
| |
| // automatically put the first shape into edit-mode |
| Display.getCurrent().asyncExec(new Runnable() { |
| |
| public void run() { |
| EditPart editPart = (EditPart) editparts.get(0); |
| editPart.performRequest(new Request( |
| RequestConstants.REQ_DIRECT_EDIT)); |
| } |
| }); |
| } |
| } |
| |
| /** |
| * Determines the location of for the shape to be created in relation to the |
| * some other shape. |
| * |
| * @param editParts |
| * the existing editparts of the shapes whose location is used to |
| * determine the location of the to be created shape |
| * @return Point the point representing the location of the to be created |
| * shape |
| */ |
| protected Point getLocation(List editParts) { |
| |
| Point referenceLocation = new Point(0, 0); |
| |
| Rect compoundBounds = new Rect(Integer.MAX_VALUE, Integer.MAX_VALUE, |
| Integer.MIN_VALUE, Integer.MIN_VALUE); |
| |
| for (int i = 0; i < editParts.size(); i++) { |
| GraphicalEditPart part = (GraphicalEditPart) editParts.get(i); |
| Rectangle bounds = null; |
| if (part.getFigure() instanceof PolylineConnectionEx) |
| bounds = ((PolylineConnectionEx) part.getFigure()) |
| .getSimpleBounds(); |
| else |
| bounds = part.getFigure().getBounds(); |
| compoundBounds = compoundRectangle(compoundBounds, bounds); |
| } |
| |
| referenceLocation = new Point( |
| (compoundBounds.x1 + compoundBounds.x2) / 2, compoundBounds.y1); |
| |
| GraphicalEditPart part = (GraphicalEditPart) editParts.get(0); |
| int vertOffset = MapModeUtil.getMapMode(part.getFigure()).DPtoLP(100); |
| Point location = new Point(); |
| location.x = referenceLocation.x; |
| location.y = referenceLocation.y - vertOffset; |
| |
| // convert the location to screen coordinates as that is what the |
| // creation command expects |
| // this is done so that the new node don;t hide up in the scrollpane of |
| // the shapecompartment. |
| if ((location.y < 0) |
| && (part.getParent() instanceof ShapeCompartmentEditPart)) { |
| location.y = referenceLocation.y; |
| location.x = part.getFigure().getBounds().getRight().x |
| + vertOffset; |
| } |
| part.getFigure().translateToAbsolute(location); |
| |
| return location; |
| } |
| |
| /** |
| * Builds a compound rectangle out of contributing rectangles |
| * |
| * @param base |
| * the base rectangle to start with |
| * @param added |
| * the newly added rectangle to be compounded |
| * @return Rect the resulting compound rectangle |
| * |
| */ |
| private Rect compoundRectangle(Rect base, Rectangle added) { |
| if (added == null) |
| return base; |
| |
| if (added.x + added.width > base.x2) |
| base.x2 = added.x + added.width; |
| if (added.y + added.height > base.y2) |
| base.y2 = added.y + added.height; |
| if (added.x < base.x1) |
| base.x1 = added.x; |
| if (added.y < base.y1) |
| base.y1 = added.y; |
| |
| return base; |
| } |
| |
| private class Rect { |
| |
| public int x1, y1, x2, y2; |
| |
| Rect(int x1, int y1, int x2, int y2) { |
| this.x1 = x1; |
| this.y1 = y1; |
| this.x2 = x2; |
| this.y2 = y2; |
| } |
| |
| public Rectangle toRectangle() { |
| return new Rectangle(x1, y1, x2 - x1 + 1, y2 - y1 + 1); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.gmf.runtime.common.ui.action.AbstractActionHandler#isSelectionListener() |
| */ |
| protected boolean isSelectionListener() { |
| return true; |
| } |
| |
| /** |
| * Return null since this action doesn't use request to execute its |
| * commands. |
| */ |
| protected Request createTargetRequest() { |
| return null; |
| } |
| |
| /** |
| * Return the first non {@link ShapeEditPart} and non |
| * {@link ConnectionEditPart} instance in the supplied editparts editpart |
| * hierarchy. |
| * |
| * @param editPart |
| * starting editpart |
| * @return an editpart the first non <code>ShapeEditPart</code> non |
| * <code>ConnectionEditPart</code> it found traversing the |
| * hierarchy upwards. |
| */ |
| protected EditPart getContainer(EditPart editPart) { |
| EditPart walker = editPart; |
| while (walker != null |
| && (walker instanceof ShapeEditPart || walker instanceof ConnectionEditPart)) { |
| walker = walker.getParent(); |
| } |
| if (walker instanceof RootEditPart) { |
| return ((RootEditPart) walker).getContents(); |
| } |
| return walker; |
| } |
| |
| } |