| /******************************************************************************* |
| * Copyright (c) 2001, 2008 Oracle 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: |
| * Oracle Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jst.pagedesigner.parts; |
| |
| import org.eclipse.draw2d.Graphics; |
| import org.eclipse.draw2d.IFigure; |
| import org.eclipse.draw2d.ImageFigure; |
| import org.eclipse.draw2d.geometry.Dimension; |
| import org.eclipse.draw2d.geometry.Rectangle; |
| import org.eclipse.gef.EditPolicy; |
| import org.eclipse.jst.pagedesigner.converter.ITagConverter; |
| import org.eclipse.jst.pagedesigner.editpolicies.NonVisualChildGraphicalEditPolicy; |
| import org.eclipse.wst.sse.core.internal.provisional.INodeNotifier; |
| import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| |
| /** |
| * Represents a node that is non-visual in the runtime rendering |
| * but which may wish to have a meta-representation on the design canvas. |
| * |
| */ |
| public class NonVisualComponentEditPart extends NodeEditPart |
| { |
| protected IFigure createFigure() |
| { |
| IFigure figure_ = new ImageFigure(getTagConverter().getVisualImage()) |
| { |
| |
| protected void paintFigure(Graphics graphics) { |
| super.paintFigure(graphics); |
| |
| if (getImage() == null) |
| return; |
| |
| Rectangle srcRect = new Rectangle(getImage().getBounds()); |
| graphics.drawImage(getImage(), srcRect, getClientArea()); |
| } |
| |
| }; |
| |
| figure_.setMinimumSize(new Dimension(0,0)); |
| return figure_; |
| } |
| |
| public void notifyChanged(INodeNotifier notifier, int eventType, |
| Object changedFeature, Object oldValue, Object newValue, int pos) { |
| // for now, do nothing |
| } |
| |
| protected void createEditPolicies() { |
| super.createEditPolicies(); |
| installEditPolicy(EditPolicy.SELECTION_FEEDBACK_ROLE |
| , new NonVisualChildGraphicalEditPolicy()); |
| installEditPolicy(EditPolicy.PRIMARY_DRAG_ROLE, |
| null); |
| } |
| |
| @Override |
| public void deactivate() |
| { |
| ITagConverter tagConverter = (ITagConverter) getModel(); |
| if (tagConverter != null) |
| { |
| tagConverter.dispose(); |
| } |
| |
| // always do super stuff |
| super.deactivate(); |
| } |
| |
| /** |
| * @return the tag converter |
| */ |
| protected ITagConverter getTagConverter() |
| { |
| ITagConverter tagConverter = (ITagConverter)getModel(); |
| //need to call convertRefresh to get image (if any) from metadata |
| if (tagConverter != null) { |
| tagConverter.convertRefresh(null); |
| } |
| return tagConverter; |
| } |
| |
| /** |
| * @return the host element for this edit part |
| */ |
| protected Element getModelElement() |
| { |
| return getTagConverter().getHostElement(); |
| } |
| |
| public IDOMNode getIDOMNode() |
| { |
| return (IDOMNode) getModelElement(); |
| } |
| |
| public Node getDOMNode() { |
| return getModelElement(); |
| } |
| |
| // public DragTracker getDragTracker(Request request) { |
| // // TODO: need to define drag semantics for these |
| // // Also, right now edit part dragging causes bad behaviour |
| // // in the non-visual decorator |
| // return null;//new ObjectModeDragTracker(this); |
| // } |
| } |