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The source code// $Id: FigGeneralization.java,v 1.16 2004/09/29 17:02:52 mvw Exp $ // Copyright (c) 1996-2004 The Regents of the University of California. All // Rights Reserved. Permission to use, copy, modify, and distribute this // software and its documentation without fee, and without a written // agreement is hereby granted, provided that the above copyright notice // and this paragraph appear in all copies. This software program and // documentation are copyrighted by The Regents of the University of // California. The software program and documentation are supplied "AS // IS", without any accompanying services from The Regents. The Regents // does not warrant that the operation of the program will be // uninterrupted or error-free. The end-user understands that the program // was developed for research purposes and is advised not to rely // exclusively on the program for any reason. IN NO EVENT SHALL THE // UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, // SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, // ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF // THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF // SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE // PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF // CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, // UPDATES, ENHANCEMENTS, OR MODIFICATIONS. package org.argouml.uml.diagram.ui; import java.awt.Color; import java.awt.Graphics; import org.argouml.kernel.ProjectManager; import org.argouml.model.uml.foundation.core.CoreFactory; import org.argouml.model.ModelFacade; import org.tigris.gef.base.Layer; import org.tigris.gef.base.PathConvPercent; import org.tigris.gef.presentation.ArrowHeadTriangle; import org.tigris.gef.presentation.Fig; import org.tigris.gef.presentation.FigNode; import org.tigris.gef.presentation.FigText; import ru.novosoft.uml.MElementEvent; /** * @author abonner@ics.uci.edu, jaap.branderhorst@xs4all.nl */ public class FigGeneralization extends FigEdgeModelElement { /** * Text box for discriminator */ private FigText discriminator = new FigText(10, 30, 90, 20); //////////////////////////////////////////////////////////////// // constructors private ArrowHeadTriangle endArrow; /** * The constructor */ public FigGeneralization() { addPathItem(getStereotypeFig(), new PathConvPercent(this, 50, 10)); endArrow = new ArrowHeadTriangle(); discriminator.setFont(getLabelFont()); discriminator.setTextColor(Color.black); discriminator.setTextFilled(false); discriminator.setFilled(false); discriminator.setLineWidth(0); discriminator.setExpandOnly(false); discriminator.setMultiLine(false); discriminator.setAllowsTab(false); addPathItem(discriminator, new PathConvPercent(this, 40, -10)); endArrow.setFillColor(Color.white); setDestArrowHead(endArrow); setBetweenNearestPoints(true); if (getLayer() == null) { setLayer(ProjectManager.getManager() .getCurrentProject().getActiveDiagram().getLayer()); } } /** * The constructor that hooks the Fig into the UML element * @param edge the UML element * @param lay the layer */ public FigGeneralization(Object edge, Layer lay) { this(); setLayer(lay); setOwner(edge); } /** * The constructor that hooks the Fig into the UML element * @param edge the UML element */ public FigGeneralization(Object edge) { this(); setOwner(edge); } /** * @see org.argouml.uml.diagram.ui.FigEdgeModelElement#canEdit(org.tigris.gef.presentation.Fig) */ protected boolean canEdit(Fig f) { return false; } //////////////////////////////////////////////////////////////// // event handlers /** This is called aftern any part of the UML MModelElement has * changed. This method automatically updates the name FigText. * Subclasses should override and update other parts. * * @see org.argouml.uml.diagram.ui.FigEdgeModelElement#modelChanged(ru.novosoft.uml.MElementEvent) */ protected void modelChanged(MElementEvent e) { // do not set _name updateStereotypeText(); updateDiscriminatorText(); } /** * Updates the discriminator text. Called if the model is changed * and on construction time. */ public void updateDiscriminatorText() { Object me = getOwner(); // MGeneralization if (me == null) { return; } String disc = (String) ModelFacade.getDiscriminator(me); if (disc == null) { disc = ""; } discriminator.setText(disc); } /** * @see org.tigris.gef.presentation.Fig#paint(java.awt.Graphics) */ public void paint(Graphics g) { endArrow.setLineColor(getLineColor()); super.paint(g); } /** * @see org.tigris.gef.presentation.Fig#setOwner(Object) */ public void setOwner(Object own) { super.setOwner(own); if (org.argouml.model.ModelFacade.isAGeneralization(own)) { Object gen = own; // MGeneralization Object subType = ModelFacade.getChild(gen); // MGeneralizableElement Object superType = ModelFacade.getParent(gen); // MGeneralizableElement // due to errors in earlier releases of argouml it can // happen that there is a generalization without a child // or parent. if (subType == null || superType == null) { removeFromDiagram(); return; } FigNode subTypeFN = (FigNode) getLayer().presentationFor(subType); FigNode superTypeFN = (FigNode) getLayer().presentationFor(superType); setSourcePortFig(subTypeFN); setSourceFigNode(subTypeFN); setDestPortFig(superTypeFN); setDestFigNode(superTypeFN); } else if (own != null) { throw new IllegalStateException("FigGeneralization " + "has an illegal owner"); } } /** * This method is called after the fig is loaded from pgml. Implemented here * to fix errors with the model concerning the fig not having an owner. * @see org.tigris.gef.presentation.Fig#postLoad() */ public void postLoad() { super.postLoad(); Object own = getOwner(); if (own == null) { fixModel(); } } private void fixModel() { Fig sourceFig = getSourceFigNode(); Fig destFig = getDestFigNode(); Object source = sourceFig.getOwner(); Object dest = destFig.getOwner(); if (ModelFacade.isAGeneralizableElement(source) && ModelFacade.isAGeneralizableElement(dest)) { setOwner(CoreFactory.getFactory().buildGeneralization(source, dest)); } } } /* end class FigGeneralization */ |
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