bundles/org.simantics.modeling/src/org/simantics/modeling/SCLScenegraph.java

   1 package org.simantics.modeling;
   2
   3 import java.awt.BasicStroke;
   4 import java.awt.Dimension;
   5 import java.awt.RenderingHints;
   6 import java.awt.RenderingHints.Key;
   7 import java.awt.geom.AffineTransform;
   8 import java.awt.geom.Rectangle2D;
   9 import java.io.ByteArrayOutputStream;
  10 import java.io.OutputStreamWriter;
  11 import java.util.ArrayList;
  12 import java.util.Arrays;
  13 import java.util.Collection;
  14 import java.util.HashMap;
  15 import java.util.HashSet;
  16 import java.util.List;
  17 import java.util.Map;
  18 import java.util.Random;
  19 import java.util.Set;
  20 import java.util.UUID;
  21 import java.util.stream.Collectors;
  22
  23 import javax.xml.transform.OutputKeys;
  24 import javax.xml.transform.Transformer;
  25 import javax.xml.transform.TransformerFactory;
  26 import javax.xml.transform.dom.DOMSource;
  27 import javax.xml.transform.stream.StreamResult;
  28
  29 import org.apache.batik.dom.GenericDOMImplementation;
  30 import org.apache.batik.svggen.SVGGeneratorContext;
  31 import org.apache.batik.svggen.SVGGraphics2D;
  32 import org.simantics.Simantics;
  33 import org.simantics.datatypes.literal.GUID;
  34 import org.simantics.db.ReadGraph;
  35 import org.simantics.db.Resource;
  36 import org.simantics.db.common.request.UnaryRead;
  37 import org.simantics.db.exception.DatabaseException;
  38 import org.simantics.db.exception.RuntimeDatabaseException;
  39 import org.simantics.diagram.elements.DiagramNodeUtil;
  40 import org.simantics.diagram.elements.TextGridNode;
  41 import org.simantics.diagram.elements.TextNode;
  42 import org.simantics.diagram.stubs.DiagramResource;
  43 import org.simantics.g2d.canvas.ICanvasContext;
  44 import org.simantics.g2d.diagram.DiagramHints;
  45 import org.simantics.g2d.diagram.IDiagram;
  46 import org.simantics.g2d.diagram.handler.DataElementMap;
  47 import org.simantics.g2d.diagram.participant.Selection;
  48 import org.simantics.g2d.element.IElement;
  49 import org.simantics.g2d.scenegraph.ICanvasSceneGraphProvider;
  50 import org.simantics.g2d.utils.CanvasUtils;
  51 import org.simantics.layer0.Layer0;
  52 import org.simantics.scenegraph.INode;
  53 import org.simantics.scenegraph.ParentNode;
  54 import org.simantics.scenegraph.g2d.G2DParentNode;
  55 import org.simantics.scenegraph.g2d.G2DRenderingHints;
  56 import org.simantics.scenegraph.g2d.G2DSceneGraph;
  57 import org.simantics.scenegraph.g2d.IG2DNode;
  58 import org.simantics.scenegraph.g2d.IG2DNodeVisitor;
  59 import org.simantics.scenegraph.g2d.events.command.Commands;
  60 import org.simantics.scenegraph.g2d.nodes.BackgroundNode;
  61 import org.simantics.scenegraph.g2d.nodes.BoundsNode;
  62 import org.simantics.scenegraph.g2d.nodes.ConnectionNode;
  63 import org.simantics.scenegraph.g2d.nodes.DataNode;
  64 import org.simantics.scenegraph.g2d.nodes.DecorationSVGNode;
  65 import org.simantics.scenegraph.g2d.nodes.NavigationNode;
  66 import org.simantics.scenegraph.g2d.nodes.SVGNode;
  67 import org.simantics.scenegraph.g2d.nodes.SelectionNode;
  68 import org.simantics.scenegraph.g2d.nodes.SingleElementNode;
  69 import org.simantics.scenegraph.g2d.nodes.connection.RouteGraphNode;
  70 import org.simantics.scenegraph.g2d.nodes.spatial.RTreeNode;
  71 import org.simantics.scenegraph.utils.NodeUtil;
  72 import org.simantics.scl.runtime.function.Function1;
  73 import org.simantics.trend.impl.ItemNode;
  74 import org.simantics.utils.threads.ThreadUtils;
  75 import org.slf4j.Logger;
  76 import org.slf4j.LoggerFactory;
  77 import org.w3c.dom.DOMImplementation;
  78 import org.w3c.dom.Document;
  79 import org.w3c.dom.Element;
  80 import org.w3c.dom.NodeList;
  81
  82 public class SCLScenegraph {
  83
  84         private static final Logger LOGGER = LoggerFactory.getLogger(SCLScenegraph.class);
  85
  86         public static ICanvasSceneGraphProvider getICanvasSceneGraphProvider(Resource model, Resource diagram, String diagramRVI) throws DatabaseException, InterruptedException {
  87                 ICanvasSceneGraphProvider provider = DiagramNodeUtil.loadSceneGraphProvider(model, diagram, diagramRVI);
  88                 return provider;
  89         }
  90
  91         public static void disposeSceneGraphProvider(ICanvasSceneGraphProvider provider) {
  92                 provider.dispose();
  93         }
  94
  95         public static String getNodeTransform(ICanvasContext ctx, String name) {
  96
  97                 Set<TextNode> texts = NodeUtil.collectNodes(ctx.getSceneGraph(), TextNode.class);
  98                 for (TextNode text : texts) {
  99                         String nodeName = NodeUtil.getNodeName(text);
 100                         if (nodeName.equals(name)) {
 101                                 String transform = text.getTransform().toString();
 102                                 return transform;
 103                         }
 104                 }
 105                 return "No node found";
 106         }
 107
 108         public static String getNodeText(ICanvasContext ctx, String name) {
 109
 110                 Set<TextNode> texts = NodeUtil.collectNodes(ctx.getSceneGraph(), TextNode.class);
 111                 for (TextNode text : texts) {
 112                         String nodeName = NodeUtil.getNodeName(text);
 113                         if (nodeName.equals(name)) {
 114                                 String texti = text.getText();
 115                                 return texti;
 116                         }
 117                 }
 118                 return "No node found";
 119         }
 120
 121         public static String getNodeCount(ICanvasContext ctx) {
 122                 G2DSceneGraph g2 = ctx.getSceneGraph();
 123                 int amount = NodeUtil.countTreeNodes(g2);
 124                 return "Node count: " + amount;
 125         }
 126
 127     public static String getAllNodes (ICanvasContext ctx) {
 128
 129         Set<G2DSceneGraph> g2 = NodeUtil.collectNodes(ctx.getSceneGraph(), G2DSceneGraph.class);
 130         int amount = g2.size() +1;
 131         return "All nodes: " + amount;
 132     }
 133
 134     public static String getBoundsNodes (ICanvasContext ctx) {
 135
 136         Set<BoundsNode> bn = NodeUtil.collectNodes(ctx.getSceneGraph(), BoundsNode.class);
 137         int amount = bn.size();
 138         return "BoundsNodes: " + amount;
 139     }
 140
 141     public static String getBackgroundNodes (ICanvasContext ctx) {
 142
 143         Set<BackgroundNode> bg = NodeUtil.collectNodes(ctx.getSceneGraph(), BackgroundNode.class);
 144         int amount = bg.size();
 145         return "BackgroundNodes: " + amount;
 146     }
 147
 148     public static String getDataNodes (ICanvasContext ctx) {
 149
 150         Set<DataNode> dn = NodeUtil.collectNodes(ctx.getSceneGraph(), DataNode.class);
 151         int amount = dn.size();
 152         return "DataNodes: " + amount;
 153     }
 154
 155     public static String getNavigationNodes (ICanvasContext ctx) {
 156
 157         Set<NavigationNode> g2 = NodeUtil.collectNodes(ctx.getSceneGraph(), NavigationNode.class);
 158         int amount = g2.size();
 159         return "NavigationNodes: " + amount;
 160     }
 161
 162     public static String getParentNodes (ICanvasContext ctx) {
 163
 164         Set<G2DParentNode> g2 = NodeUtil.collectNodes(ctx.getSceneGraph(), G2DParentNode.class);
 165         int amount = g2.size();
 166         return "ParentNodes: " + amount;
 167     }
 168
 169     public static String getDecorationNodes (ICanvasContext ctx) {
 170
 171         Set<DecorationSVGNode> deco = NodeUtil.collectNodes(ctx.getSceneGraph(), DecorationSVGNode.class);
 172         int amount = deco.size();
 173         return "DecorationNodes: " + amount;
 174     }
 175
 176     public static String getSingleElementNodes (ICanvasContext ctx) {
 177
 178         Set<SingleElementNode> g2 = NodeUtil.collectNodes(ctx.getSceneGraph(), SingleElementNode.class);
 179         int amount = g2.size();
 180         return "SingleElementNodes: " + amount;
 181     }
 182
 183     public static String getConnectionNodes (ICanvasContext ctx) {
 184
 185         Set<ConnectionNode> g2 = NodeUtil.collectNodes(ctx.getSceneGraph(), ConnectionNode.class);
 186         int amount = g2.size();
 187         return "ConnectionNodes: " + amount;
 188     }
 189
 190     public static String getTextNodes (ICanvasContext ctx) {
 191
 192         Set<TextNode> tn = NodeUtil.collectNodes(ctx.getSceneGraph(), TextNode.class);
 193         Set<TextGridNode> tgn = NodeUtil.collectNodes(ctx.getSceneGraph(), TextGridNode.class);
 194         int amount = tn.size() + tgn.size();
 195         return "TextNodes: " + amount;
 196     }
 197
 198     public static String getItemNodes (ICanvasContext ctx) {
 199
 200         Set<ItemNode> item = NodeUtil.collectNodes(ctx.getSceneGraph(), ItemNode.class);
 201         int amount = item.size();
 202         return "ItemNodes: " + amount;
 203     }
 204
 205     public static String editNodeText (ICanvasContext ctx, String module, String previous_value, String new_value) {
 206
 207         Set<TextNode> textGridNodes = NodeUtil.collectNodes(ctx.getSceneGraph(), TextNode.class);
 208         for (TextNode modulenode : textGridNodes) {
 209                 if (module.equals(modulenode.getText())) {
 210                         //System.out.println("Module what we were looking for: " + module);
 211                         //System.out.println("Modulenode: " + modulenode.getText());
 212
 213                         ParentNode<?> parentnode = modulenode.getParent();
 214                         //System.out.println("Parentnode: " + parentnode);
 215
 216                         Collection<TextNode> textnodes = (Collection<TextNode>) parentnode.getNodes();
 217                         for (TextNode valuenode : textnodes) {
 218                                 if (previous_value.equals(valuenode.getText())) {
 219                                         //System.out.println("Value what we were looking for: " + previous_value);
 220                                         //System.out.println("Valuenode: " + valuenode.getText());
 221
 222                                         //valuenode.setEditMode(true);
 223                                         valuenode.activateEdit(0, null, ctx);
 224                                         valuenode.setText(new_value);
 225                                         valuenode.fireTextEditingEnded();
 226
 227                                         //System.out.println("valuenode modified: " + valuenode);
 228                                         return "Modified module " + module + " with value " + new_value;
 229                                 }
 230                         }
 231                         return "Not found module : " + module;
 232                 }
 233         }
 234         return "No nodes in scenegraph!";
 235     }
 236
 237     public static String sceneGraphTest (ICanvasContext ctx, String module, String value) {
 238
 239         boolean module_founded = false;
 240         boolean value_founded = false;
 241
 242         Set<G2DSceneGraph> g2 = NodeUtil.collectNodes(ctx.getSceneGraph(), G2DSceneGraph.class);
 243         System.out.println("Total amount of nodes: " + g2.size() + 1);
 244
 245         Set<TextGridNode> grid = NodeUtil.collectNodes(ctx.getSceneGraph(), TextGridNode.class);
 246         Integer textGridNodeAmount = grid.size();
 247         System.out.println("Amount of TextGridNodes " + textGridNodeAmount);
 248
 249         Set<TextNode> texts = NodeUtil.collectNodes(ctx.getSceneGraph(), TextNode.class);
 250         Integer textNodeAmount = grid.size();
 251         System.out.println("Amount of TextNodes " + textNodeAmount);
 252
 253         for (TextNode node : texts) {
 254             if (module.equals(node.getText())) {
 255                 module_founded = true;
 256                 System.out.println("Correct module " + module + " founded.");
 257             }
 258             if (value.equals(node.getText())) {
 259                 value_founded = true;
 260                 System.out.println("Correct value " + value + " founded.");
 261             }
 262         }
 263
 264         if (value_founded == true && module_founded == true) {
 265                 return "Found both correct module " + module + " and value " + value;
 266         }
 267         if (value_founded == false && module_founded == true) {
 268                 return "Found only correct module " + module + " but not value " + value;
 269         }
 270         if (value_founded == true && module_founded == false) {
 271                 return "Found only correct value " + value + " but not module " + module;
 272         }
 273         else {
 274                 return "Didn't found either module " + module + " or value " + value;
 275         }
 276     }
 277
 278     public static boolean copyPaste (final ICanvasContext source_ctx, final ICanvasContext target_ctx, List<Resource> modules) throws DatabaseException {
 279
 280         IDiagram idiagram = source_ctx.getDefaultHintContext().getHint(DiagramHints.KEY_DIAGRAM);
 281
 282                 DataElementMap dem = idiagram.getDiagramClass().getAtMostOneItemOfClass(DataElementMap.class);
 283                 if (dem != null) {
 284                         final Collection<IElement> newSelection = new ArrayList<IElement>();
 285                         for (Resource module : modules) {
 286                                 IElement element = dem.getElement(idiagram, module);
 287                                 if (element != null) {
 288                                         newSelection.add(element);
 289                                 } else {
 290                                         throw new DatabaseException("Could not find IElement for " + element);
 291                                 }
 292                         }
 293
 294                         ThreadUtils.syncExec(source_ctx.getThreadAccess(), new Runnable() {
 295                     @Override
 296                     public void run() {
 297                         if (source_ctx.isDisposed())
 298                             return;
 299                         Selection selection = source_ctx.getAtMostOneItemOfClass(Selection.class);
 300                         if (selection != null) {
 301                             // This prevents workbench selection from being left over.
 302                             // Also prevents scene graph crap from being left on the screen.
 303                             selection.setSelection(0, newSelection);
 304                         }
 305                                 CanvasUtils.sendCommand(source_ctx, Commands.COPY);
 306                                 CanvasUtils.sendCommand(target_ctx, Commands.PASTE);
 307                     }
 308                 });
 309
 310                 //}
 311
 312                 while(source_ctx.getEventQueue().size() > 0) {
 313                         try {
 314                                 Thread.sleep(10);
 315                         } catch (InterruptedException e) {
 316                                 throw new DatabaseException(e);
 317                         }
 318                 }
 319
 320                 ThreadUtils.syncExec(source_ctx.getThreadAccess(), new Runnable() {
 321             @Override
 322             public void run() {
 323             }
 324         });
 325
 326                 }
 327                 return true;
 328     }
 329
 330         static class Generator extends SVGGraphics2D {
 331
 332                 int elemLevel = 0;
 333                 String newElementId = null;
 334                 ArrayList<Element> elements = new ArrayList<Element>();
 335
 336                 public static final String svgNS = "http://www.w3.org/2000/svg";
 337
 338                 public Generator(SVGGeneratorContext ctx, boolean joku) {
 339                         super(ctx, joku);
 340                 }
 341
 342                 public Generator(Document document) {
 343                         super(document);
 344                 }
 345
 346                 @Override
 347                 public Element getRoot() {
 348                         Element root = super.getRoot();
 349                         for(Element e : elements) {
 350                                 root.appendChild(e);
 351                         }
 352                         return root;
 353                 }
 354
 355                 @Override
 356                 public void setRenderingHint(Key arg0, Object arg1) {
 357                         if(G2DRenderingHints.KEY_BEGIN_ELEMENT == arg0) {
 358                                 elemLevel++;
 359                         }
 360                         if(G2DRenderingHints.KEY_ELEMENT_ID == arg0) {
 361                                 if(arg1 != null)
 362                                         newElementId = arg1.toString();
 363                                 else
 364                                         newElementId = UUID.randomUUID().toString();
 365                         }
 366                         if(G2DRenderingHints.KEY_END_ELEMENT == arg0) {
 367                                 elemLevel--;
 368                                 if(elemLevel == 0) {
 369                                         Element group = getDOMFactory().createElement(SVG_G_TAG);
 370                                         //Element group = getDOMFactory().createElementNS(SVG_NAMESPACE_URI, SVG_G_TAG);
 371                                         group.setAttributeNS(null, "id", newElementId);
 372                                         group.setAttributeNS(null, "class", arg1.toString());
 373                                         getRoot(group);
 374                                         elements.add(group);
 375                                 }
 376                         }
 377                         super.setRenderingHint(arg0, arg1);
 378                 }
 379
 380         }
 381
 382         public static Element renderSVGNode(IG2DNode node) {
 383
 384                 // Get a DOMImplementation.
 385                 DOMImplementation domImpl = GenericDOMImplementation.getDOMImplementation();
 386
 387                 // Create an instance of org.w3c.dom.Document.
 388                 String svgNS = "http://www.w3.org/2000/svg";
 389                 Document document = domImpl.createDocument(svgNS, "svg", null);
 390
 391                 SVGGeneratorContext ctx = SVGGeneratorContext.createDefault(document);
 392                 ctx.setComment(null);
 393
 394                 // Create an instance of the SVG Generator.
 395                 SVGGraphics2D svgGenerator = new Generator(ctx, false);
 396
 397                 try {
 398
 399                         svgGenerator.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
 400                         svgGenerator.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
 401                         svgGenerator.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
 402
 403                         node.render(svgGenerator);
 404
 405                 } catch (Throwable t) {
 406                         LOGGER.error("Problems rendering scene graph to SVG", t);
 407                 }
 408
 409                 return svgGenerator.getRoot();
 410         }
 411
 412         public static String printSVGDocument(Element doce) {
 413
 414                 StringBuilder result = new StringBuilder();
 415
 416                 NodeList nl =  doce.getChildNodes();
 417
 418                 for(int i=0;i<nl.getLength();i++) {
 419
 420                         ByteArrayOutputStream os = new ByteArrayOutputStream();
 421
 422                         try {
 423
 424                                 TransformerFactory tf = TransformerFactory.newInstance();
 425                                 Transformer transformer = tf.newTransformer();
 426                                 transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
 427                                 transformer.setOutputProperty(OutputKeys.STANDALONE, "no");
 428                                 transformer.setOutputProperty(OutputKeys.METHOD, "xml");
 429                                 transformer.setOutputProperty(OutputKeys.INDENT, "yes");
 430                                 transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
 431                                 transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
 432
 433                                 transformer.transform(new DOMSource(nl.item(i)),
 434                                                 new StreamResult(new OutputStreamWriter(os, "UTF-8")));
 435
 436                                 os.flush();
 437                                 os.close();
 438
 439                         } catch (Throwable t) {
 440                                 LOGGER.error("Problems formatting SVGDocument to text.", t);
 441                         }
 442
 443                         result.append(new String(os.toByteArray()));
 444
 445                 }
 446
 447                 return result.toString();
 448
 449         }
 450
 451         public static String renderSVG3(ICanvasContext ctx) {
 452         return renderSVG0(ctx, p0 -> p0.stream().collect(Collectors.toMap(p1 -> p1, p2 -> p2)));
 453         }
 454
 455     /**
 456      * @param graph
 457      * @param component
 458      * @throws DatabaseException
 459      */
 460     private static Object[] createURIBasedL0Identifier(ReadGraph graph, Resource component) throws DatabaseException {
 461         String uri = graph.getPossibleURI(component);
 462         int hashCode = uri.hashCode();
 463         Random random = new Random(hashCode);
 464         long l1 = random.nextLong();
 465         long l2 = random.nextLong();
 466         return new Object[] { l1, l2 };
 467     }
 468
 469     /**
 470      * Default no-op mapper
 471      */
 472     private static final Function1<Set<?>, Map<?, ?>> mapper = p0 -> p0.stream().collect(Collectors.toMap(p1 -> p1, p2 -> p2));
 473
 474     public static String renderSVG(ICanvasContext ctx) {
 475         return renderSVG0(ctx, mapper);
 476     }
 477
 478     /**
 479      * Renders ICanvasContext into SVG by mapping the SVG id's into URI based
 480      * GUID's
 481      *
 482      * @param ctx
 483      * @return
 484      */
 485     public static String renderSVGMapIdentifiers(ICanvasContext ctx) {
 486         return renderSVG0(ctx, new Function1<Set<?>, Map<?, ?>>() {
 487
 488             @Override
 489             public Map<?, ?> apply(Set<?> p0) {
 490                 try {
 491                     return Simantics.getSession().syncRequest(new UnaryRead<Set<?>, Map<?, ?>>(p0) {
 492
 493                         @Override
 494                         public Map<?, ?> perform(ReadGraph graph) throws DatabaseException {
 495                             ModelingResources MOD = ModelingResources.getInstance(graph);
 496                             DiagramResource DIA = DiagramResource.getInstance(graph);
 497                             Layer0 L0 = Layer0.getInstance(graph);
 498                             return parameter.stream().collect(Collectors.toMap(p -> p, p -> {
 499                                 try {
 500                                     if (p instanceof Resource) {
 501                                         Resource element = (Resource) p;
 502                                         if (graph.isInstanceOf(element, DIA.Element)) {
 503                                             Resource component = graph.getPossibleObject(element, MOD.ElementToComponent);
 504                                             if (component != null) {
 505                                                 GUID identifier = graph.getPossibleRelatedValue(component, L0.identifier, GUID.BINDING);
 506                                                 if (identifier != null) {
 507                                                     return Arrays.toString(createURIBasedL0Identifier(graph, component));
 508                                                 } else {
 509                                                     LOGGER.error("Component {} does not have GUID identifier!", component);
 510                                                 }
 511                                             } else if (graph.isInstanceOf(element, DIA.Connection) || graph.isInstanceOf(element, DIA.Terminal)) {
 512                                                 // Ok, lets create a hashcode for connections and terminals as they do not have identifiers
 513                                                 return graph.getURI(element).hashCode();
 514                                             } else {
 515                                                 // Ok, lets create a hashcode or either return empty string in cases where no ID is required
 516                                                 if (graph.hasStatement(element, L0.HasName))
 517                                                     return graph.getURI(element).hashCode();
 518                                                 return "";
 519                                             }
 520                                         }
 521                                     } else {
 522                                         LOGGER.error("Parameter p {} is not resource but it is {}", p, p.getClass());
 523                                     }
 524                                     return p;
 525                                 } catch (DatabaseException e) {
 526                                     throw new RuntimeDatabaseException(e);
 527                                 }
 528                             }));
 529                         }
 530                     });
 531                 } catch (DatabaseException e) {
 532                     LOGGER.error("Could not apply mappings", e);
 533                     throw new RuntimeDatabaseException(e);
 534                 }
 535             }
 536         });
 537         }
 538
 539         private static String renderSVG0(ICanvasContext ctx, Function1<Set<?>, Map<?, ?>> mappingFunction) {
 540
 541                 // Get a DOMImplementation.
 542                 DOMImplementation domImpl = GenericDOMImplementation.getDOMImplementation();
 543
 544                 // Create an instance of org.w3c.dom.Document.
 545                 String svgNS = "http://www.w3.org/2000/svg";
 546                 Document document = domImpl.createDocument(svgNS, "svg", null);
 547
 548                 // Create an instance of the SVG Generator.
 549                 SVGGraphics2D svgGenerator = new Generator(document);
 550
 551                 StringBuilder result = new StringBuilder();
 552
 553                 try {
 554
 555             Selection selection = ctx.getAtMostOneItemOfClass(Selection.class);
 556             if (selection != null) {
 557                 // This prevents workbench selection from being left over.
 558                 // Also prevents scene graph crap from being left on the screen.
 559                 IDiagram d = ctx.getDefaultHintContext().getHint(DiagramHints.KEY_DIAGRAM);
 560                 selection.setSelection(0, d.getElements());
 561             }
 562
 563                         G2DSceneGraph sg = ctx.getSceneGraph();
 564                         G2DParentNode root = (G2DParentNode) sg.getRootNode();
 565
 566                         // rtree is the actual content of the diagram
 567                         RTreeNode rtree = NodeUtil.getNearestChildByClass(root, RTreeNode.class);
 568                         Rectangle2D rtreeBounds = NodeUtil.getLocalBounds(rtree);
 569
 570                         // nav is a node that has zooming functionalities
 571                         NavigationNode nav = NodeUtil.getNearestChildByClass(root, NavigationNode.class);
 572                         nav.setZoomEnabled(true);
 573
 574                         // fit view with the contents of rtreeBounds
 575                         nav.zoomTo(rtreeBounds);
 576
 577                         // get the bounds of the content
 578                         Rectangle2D content = NodeUtil.getLocalBounds(nav);
 579
 580                         svgGenerator.scale(3,3);
 581
 582                         // translate svgGenerator to the x and y coordinates of current content
 583                         svgGenerator.translate(-1 * content.getX(), (-1 * content.getY()));
 584
 585                         Rectangle2D destination = new Rectangle2D.Double(0,0,1000,1000);
 586                         double sx = destination.getWidth() / content.getWidth();
 587                         double sy = destination.getHeight() / content.getHeight();
 588                         double scale = sx < sy ? sx : sy;
 589
 590                         // Set svgCanvasSize to the given size parameters
 591                         svgGenerator.setSVGCanvasSize(new Dimension((int)(scale * content.getWidth()), (int)(scale * content.getHeight())));
 592                         svgGenerator.setClip(content);
 593
 594                         double trX = -1 * content.getX();
 595                         double trY = -1 * content.getY();
 596
 597                         result.append("<svg width=\"100%\" height=\"100%\" stroke=\"black\"><g transform=\"translate(").append(trX).append(' ').append(trY).append(")\">");
 598
 599                         KeyVisitor keyVisitor = new KeyVisitor();
 600                         sg.accept(keyVisitor);
 601
 602                         Set<Object> keys = keyVisitor.getKeys();
 603
 604                         Map<?, ?> mappings = mappingFunction.apply(keys);
 605
 606                         IG2DNodeVisitor visitor = new PrintingVisitor(result, mappings);
 607                         sg.accept(visitor);
 608
 609                 } catch (Throwable t) {
 610                         LOGGER.error("Problems rendering canvas context to SVG", t);
 611                 }
 612
 613                 result.append("</g></svg>");
 614                 //System.err.println(" == FINAL RESULT == ");
 615                 //System.err.println(b);
 616                 return result.toString();
 617         }
 618
 619
 620
 621         private static class KeyVisitor implements IG2DNodeVisitor {
 622
 623         private Set<Object> keys = new HashSet<>();
 624
 625         @Override
 626         public void enter(IG2DNode node) {
 627             if (node instanceof SingleElementNode) {
 628                 Object key = ((SingleElementNode) node).getKey();
 629                 if (key != null) {
 630                     keys.add(key);
 631                 }
 632             }
 633         }
 634
 635         @Override
 636         public void leave(IG2DNode node) {
 637             // Nothing to do
 638         }
 639
 640         public Set<Object> getKeys() {
 641             return keys;
 642         }
 643         }
 644
 645         private static class PrintingVisitor implements IG2DNodeVisitor {
 646
 647         int indent = 0;
 648
 649         HashMap<SingleElementNode,StringBuilder> senBuilders = new HashMap<>();
 650
 651         private StringBuilder result;
 652
 653         private Map<?, ?> mappings;
 654
 655         public PrintingVisitor(StringBuilder result, Map<?, ?> mappings) {
 656             this.result = result;
 657             this.mappings = mappings;
 658         }
 659
 660         private String getKey(SingleElementNode node) {
 661             String key;
 662             if (mappings.containsKey(node.getKey()))
 663                 key = mappings.get(node.getKey()).toString();
 664             else
 665                 key = node.getKey().toString();
 666             return key;
 667         }
 668
 669         @Override
 670         public void enter(IG2DNode node) {
 671
 672             StringBuilder parentBuilder = getParentBuilder(node);
 673
 674             indent++;
 675             if(node instanceof ConnectionNode) {
 676
 677                 for(RouteGraphNode n : NodeUtil.collectNodes(node, RouteGraphNode.class)) {
 678                     n.setIgnoreSelection(true);
 679                 }
 680
 681                 String key = getKey((ConnectionNode) node);
 682                 parentBuilder.append("\n<g class=\"connection\" id=\"" + key + "\">");
 683                 Element doc = renderSVGNode((IG2DNode)node);
 684                 String svg = printSVGDocument(doc);
 685                 parentBuilder.append(svg);
 686
 687                 for(RouteGraphNode n : NodeUtil.collectNodes(node, RouteGraphNode.class)) {
 688                     n.setIgnoreSelection(false);
 689                 }
 690
 691                 parentBuilder.append("\n<g style=\"visibility:hidden\" class=\"selection\" id=\"" + key + "\">");
 692                 doc = renderSVGNode((IG2DNode)node);
 693                 svg = printSVGDocument(doc);
 694                 parentBuilder.append(svg);
 695                 parentBuilder.append("\n</g>");
 696
 697                 BasicStroke bs = new BasicStroke(5f);
 698
 699                 for(RouteGraphNode n : NodeUtil.collectNodes(node, RouteGraphNode.class)) {
 700                     n.setDynamicStroke(bs);
 701                 }
 702
 703                 parentBuilder.append("\n<g class=\"selectionMask\" opacity=\"0.001\" id=\"" + key + "\">");
 704                 doc = renderSVGNode((IG2DNode)node);
 705                 svg = printSVGDocument(doc);
 706                 parentBuilder.append(svg);
 707                 parentBuilder.append("\n</g>");
 708
 709                 parentBuilder.append("\n</g>");
 710
 711             } else if (node instanceof SelectionNode) {
 712
 713                 SelectionNode n = (SelectionNode)node;
 714                 SingleElementNode parentSEN = (SingleElementNode)NodeUtil.getNearestParentOfType(node, SingleElementNode.class);
 715                 if(parentSEN != null && parentSEN.getKey() != null) {
 716
 717                     StringBuilder parentBuilder2 = getParentBuilder(parentSEN);
 718
 719                     String key = getKey(parentSEN);
 720                     Element doc = renderSVGNode((IG2DNode)node);
 721                     String svg = printSVGDocument(doc);
 722                     parentBuilder2.append("\n<g style=\"visibility:hidden\" class=\"selection\" id=\"" + key + "\">");
 723                     parentBuilder2.append(svg);
 724                     parentBuilder2.append("\n</g>");
 725                     parentBuilder2.append("\n<g class=\"selectionMask\" id=\"" + key + "\">");
 726                     Rectangle2D rect = n.getRect();
 727                     parentBuilder2.append("<rect style=\"fill:#fff\" opacity=\"0.001\"");
 728                     parentBuilder2.append(" x=\"" + rect.getX() + "\" y=\"" + rect.getY() + "\"");
 729                     parentBuilder2.append(" width=\"" + rect.getWidth() + "\" height=\"" + rect.getHeight() + "\"");
 730                     parentBuilder2.append("></rect>");
 731                     parentBuilder2.append("\n</g>");
 732                 }
 733             } else if (node instanceof SVGNode) {
 734                 SVGNode svg = (SVGNode)node;
 735                 parentBuilder.append(svg.getSVGText());
 736             } else if (node instanceof G2DParentNode) {
 737                 AffineTransform at = node.getTransform();
 738                 if(node instanceof SingleElementNode) {
 739                     SingleElementNode sen = (SingleElementNode)node;
 740                     if(sen.getKey() != null) {
 741                         String key = getKey(sen);
 742                         parentBuilder.append("\n<g class=\"definedElement\" id=\"" + key + "\">");
 743                     }
 744                     senBuilders.put(sen, new StringBuilder());
 745                 }
 746                 if(!at.isIdentity()) {
 747                     if(at.getScaleX() == 1.0 && at.getScaleY() == 1.0 && at.getShearX() == 0.0 && at.getShearY() == 0.0) {
 748                         String m = "translate(" + at.getTranslateX() + " " + at.getTranslateY() + ")";
 749                         parentBuilder.append("\n<g transform=\"" + m + "\">");
 750                     } else {
 751                         double[] ds = new double[6];
 752                         at.getMatrix(ds);
 753                         String m = "matrix(" + ds[0] + " " + ds[1] + " " + ds[2] + " " + ds[3] + " " + ds[4] + " " + ds[5] + ")";
 754                         parentBuilder.append("\n<g transform=\"" + m + "\">");
 755                     }
 756                 }
 757             }
 758
 759             //enters.put(node, b.length());
 760
 761         }
 762
 763         private StringBuilder getParentBuilder(IG2DNode node) {
 764
 765             INode parentSEN = NodeUtil.getNearestParentOfType(node, SingleElementNode.class);
 766             if(parentSEN instanceof G2DSceneGraph) return result;
 767
 768             StringBuilder parentBuilder = senBuilders.get(parentSEN);
 769             if(parentBuilder == null) return result;
 770
 771             return parentBuilder;
 772
 773         }
 774
 775         @Override
 776         public void leave(IG2DNode node) {
 777
 778             if(node instanceof ConnectionNode || node instanceof SVGNode) {
 779                 // We are done
 780             } else if (node instanceof G2DParentNode) {
 781
 782                 StringBuilder parentBuilder = getParentBuilder(node);
 783
 784                 if(node instanceof SingleElementNode) {
 785                     SingleElementNode sen = (SingleElementNode)node;
 786 //                  if(sen.getKey() != null) {
 787                         StringBuilder b = senBuilders.get(sen);
 788                         String content = b.toString();
 789                         if(content.isEmpty()) {
 790                             if(sen.getKey() != null) {
 791
 792                                 for(SelectionNode n : NodeUtil.collectNodes(node, SelectionNode.class)) {
 793                                     n.setIgnore(true);
 794                                 }
 795
 796                                 Element doc = renderSVGNode((IG2DNode)node);
 797                                 String svg = printSVGDocument(doc);
 798                                 parentBuilder.append(svg);
 799                             }
 800                         } else {
 801                             parentBuilder.append(content);
 802                         }
 803 //                  }
 804                 }
 805
 806
 807                 AffineTransform at = node.getTransform();
 808                 if(!at.isIdentity()) {
 809                     parentBuilder.append("</g>");
 810                 }
 811                 if(node instanceof SingleElementNode) {
 812                     SingleElementNode sen = (SingleElementNode)node;
 813                     if(sen.getKey() != null) {
 814                         parentBuilder.append("</g>");
 815                     }
 816                 }
 817             }
 818             indent --;
 819         }
 820         }
 821 }