gerrit.simantics Code Review - simantics/district.git/blob

   1 package org.simantics.district.network.ui.breakdown;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5 import java.util.concurrent.ConcurrentHashMap;
   6 import java.util.concurrent.ConcurrentMap;
   7
   8 import org.eclipse.core.runtime.IProgressMonitor;
   9 import org.eclipse.core.runtime.IStatus;
  10 import org.eclipse.core.runtime.Status;
  11 import org.eclipse.core.runtime.SubMonitor;
  12 import org.eclipse.jface.action.Action;
  13 import org.eclipse.jface.action.IMenuListener;
  14 import org.eclipse.jface.action.IMenuManager;
  15 import org.eclipse.jface.action.MenuManager;
  16 import org.eclipse.jface.layout.GridDataFactory;
  17 import org.eclipse.jface.layout.GridLayoutFactory;
  18 import org.eclipse.jface.layout.TreeColumnLayout;
  19 import org.eclipse.jface.resource.ImageDescriptor;
  20 import org.eclipse.jface.resource.JFaceResources;
  21 import org.eclipse.jface.resource.LocalResourceManager;
  22 import org.eclipse.jface.resource.ResourceManager;
  23 import org.eclipse.jface.viewers.CellLabelProvider;
  24 import org.eclipse.jface.viewers.ColumnLabelProvider;
  25 import org.eclipse.jface.viewers.ColumnWeightData;
  26 import org.eclipse.jface.viewers.ITreeContentProvider;
  27 import org.eclipse.jface.viewers.TreeViewer;
  28 import org.eclipse.jface.viewers.TreeViewerColumn;
  29 import org.eclipse.jface.viewers.Viewer;
  30 import org.eclipse.jface.viewers.ViewerComparator;
  31 import org.eclipse.osgi.util.NLS;
  32 import org.eclipse.swt.SWT;
  33 import org.eclipse.swt.events.KeyAdapter;
  34 import org.eclipse.swt.events.KeyEvent;
  35 import org.eclipse.swt.events.MouseAdapter;
  36 import org.eclipse.swt.events.MouseEvent;
  37 import org.eclipse.swt.events.SelectionAdapter;
  38 import org.eclipse.swt.events.SelectionEvent;
  39 import org.eclipse.swt.events.SelectionListener;
  40 import org.eclipse.swt.graphics.Image;
  41 import org.eclipse.swt.widgets.Composite;
  42 import org.eclipse.swt.widgets.Menu;
  43 import org.eclipse.swt.widgets.TreeColumn;
  44 import org.simantics.DatabaseJob;
  45 import org.simantics.NameLabelMode;
  46 import org.simantics.NameLabelUtil;
  47 import org.simantics.ObjectIdentitySchedulingRule;
  48 import org.simantics.Simantics;
  49 import org.simantics.db.ReadGraph;
  50 import org.simantics.db.Resource;
  51 import org.simantics.db.common.procedure.adapter.DisposableListener;
  52 import org.simantics.db.common.request.UnaryRead;
  53 import org.simantics.db.exception.DatabaseException;
  54 import org.simantics.db.layer0.adapter.Instances;
  55 import org.simantics.db.layer0.request.ActiveModels;
  56 import org.simantics.district.network.ontology.DistrictNetworkResource;
  57 import org.simantics.district.network.ui.DistrictNetworkUIUtil;
  58 import org.simantics.district.network.ui.breakdown.Input.NetworkDiagram;
  59 import org.simantics.district.network.ui.breakdown.Input.NetworkDiagrams;
  60 import org.simantics.district.network.ui.breakdown.Input.Subgraph;
  61 import org.simantics.district.network.ui.internal.Activator;
  62 import org.simantics.modeling.ModelingResources;
  63 import org.simantics.utils.strings.AlphanumComparator;
  64 import org.simantics.utils.strings.StringUtils;
  65 import org.simantics.utils.ui.BundleUtils;
  66 import org.simantics.utils.ui.ISelectionUtils;
  67 import org.simantics.utils.ui.SWTUtils;
  68 import org.slf4j.Logger;
  69 import org.slf4j.LoggerFactory;
  70
  71 /**
  72  * @author Tuukka Lehtonen
  73  * @since 1.35.0
  74  */
  75 public class DistrictNetworkBreakdownPanel extends Composite {
  76
  77     private static final Logger LOGGER = LoggerFactory.getLogger(DistrictNetworkBreakdownPanel.class);
  78
  79     private DisposableListener<NetworkDiagrams> inputListener;
  80     //private NetworkDiagrams currentInput;
  81     private ConcurrentMap<NetworkDiagram, Subgraph[]> subgraphs = new ConcurrentHashMap<>();
  82
  83     private ResourceManager rm;
  84     private TreeViewer tree;
  85
  86     private TreeComparator treeComparator;
  87
  88     private ImageDescriptor mapImg;
  89
  90     public DistrictNetworkBreakdownPanel(Composite parent, int style) {
  91         super(parent, style);
  92         this.rm = new LocalResourceManager(JFaceResources.getResources(), this);
  93
  94         this.mapImg = BundleUtils.getImageDescriptorFromPlugin("com.famfamfam.silk", "icons/map.png");
  95
  96         addDisposeListener(e -> DistrictNetworkBreakdownPanel.this.widgetDisposed());
  97         createUI(parent);
  98         trackInput();
  99     }
 100
 101     protected void widgetDisposed() {
 102         if (inputListener != null)
 103             inputListener.dispose();
 104     }
 105
 106     private void createUI(Composite parent) {
 107         GridLayoutFactory.fillDefaults().applyTo(this);
 108
 109         Composite treeParent = new Composite(this, SWT.NONE);
 110         TreeColumnLayout treeLayout = new TreeColumnLayout();
 111         treeParent.setLayout(treeLayout);
 112         GridDataFactory.fillDefaults().grab(true, true).span(1, 1).applyTo(treeParent);
 113
 114         treeComparator = new TreeComparator();
 115
 116         tree = new TreeViewer(treeParent, SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER | SWT.FULL_SELECTION);
 117         tree.setUseHashlookup(true);
 118         tree.getTree().setHeaderVisible(true);
 119         tree.setContentProvider(new ContentProvider());
 120         tree.setComparator(treeComparator);
 121         createColumns(treeLayout);
 122
 123         tree.getTree().addKeyListener(new KeyAdapter() {
 124             @Override
 125             public void keyPressed(KeyEvent e) {
 126                 if (e.keyCode == SWT.F5) {
 127                     e.doit = false;
 128                     refreshSelection();
 129                 }
 130             }
 131         });
 132         tree.getTree().addMouseListener(new MouseAdapter() {
 133             @Override
 134             public void mouseDoubleClick(MouseEvent e) {
 135                 new ShowSubnetworkAction(selectedSubgraphs()).run();
 136             }
 137         });
 138
 139         MenuManager menuManager = new MenuManager("District Network Breakdown Actions", "#DistrictNetworkBreakdownPopup");
 140         menuManager.setRemoveAllWhenShown(true);
 141         Menu menu = menuManager.createContextMenu(tree.getTree());
 142         tree.getTree().setMenu(menu);
 143         menuManager.addMenuListener(new IMenuListener() {
 144             @Override
 145             public void menuAboutToShow(IMenuManager manager) {
 146                 List<Subgraph> sel = selectedSubgraphs();
 147                 if (sel.size() > 0 && fromSameDiagram(sel)) {
 148                     manager.add(new ShowSubnetworkAction(sel));
 149                 }
 150                 //manager.add(new DeleteAction());
 151             }
 152
 153             private boolean fromSameDiagram(List<Subgraph> list) {
 154                 NetworkDiagram d = null;
 155                 for (Subgraph sg : list) {
 156                     if (d == null)
 157                         d = sg.parent;
 158                     else if (!d.equals(sg.parent))
 159                         return false;
 160                 }
 161                 return true;
 162             }
 163         });
 164     }
 165
 166     protected void refreshSelection() {
 167         for (Object obj : tree.getStructuredSelection().toArray()) {
 168             if (obj instanceof NetworkDiagram) {
 169                 subgraphs.remove(obj);
 170                 tree.refresh(obj);
 171             }
 172         }
 173     }
 174
 175     protected void scheduleRefresh(NetworkDiagram diagram) {
 176         SWTUtils.asyncExec(tree.getTree(), () -> {
 177             if (!tree.getTree().isDisposed())
 178                 tree.refresh(diagram);
 179         });
 180     }
 181
 182     private void createColumns(TreeColumnLayout layout) {
 183         TreeViewerColumn nameCol = createColumn(0, layout, "Diagram", "Diagram / Subgraph Number", new NameLabeler(), 1, 100, SWT.LEFT);
 184         createColumn(1, layout, "Nodes", "Node Count of Subnetwork", new NodeCountLabeler(), 0, 100, SWT.LEFT);
 185         createColumn(2, layout, "Edges", "Edge Count of Subnetwork", new EdgeCountLabeler(), 0, 100, SWT.LEFT);
 186         setSortColumn(nameCol.getColumn(), 1);
 187     }
 188
 189     private TreeViewerColumn createColumn(int index, TreeColumnLayout layout, String text, String tooltip,
 190             CellLabelProvider labelProvider, int weight, int minimumWidth, int style) {
 191         TreeViewerColumn column = new TreeViewerColumn(tree, style);
 192         column.getColumn().setText(text);
 193         column.getColumn().setToolTipText(StringUtils.safeString(tooltip));
 194         column.getColumn().setResizable(true);
 195         column.getColumn().setMoveable(true);
 196         column.getColumn().addSelectionListener(getSelectionAdapter(column.getColumn(), index));
 197         column.setLabelProvider(labelProvider);
 198         layout.setColumnData(column.getColumn(), new ColumnWeightData(weight, minimumWidth));
 199         return column;
 200     }
 201
 202     private List<Subgraph> selectedSubgraphs() {
 203         return ISelectionUtils.filterSelection(tree.getStructuredSelection(), Subgraph.class);
 204     }
 205
 206     public class TreeComparator extends ViewerComparator {
 207         private static final int DESCENDING = 1;
 208
 209         private int propertyIndex = -1;
 210         private int direction = 0;
 211
 212         public int getDirection() {
 213             return direction == 1 ? SWT.DOWN : SWT.UP;
 214         }
 215
 216         public void setColumn(int column) {
 217             if (column == this.propertyIndex) {
 218                 // Same column as last sort; toggle the direction
 219                 direction = 1 - direction;
 220             } else {
 221                 // New column; do an ascending sort
 222                 this.propertyIndex = column;
 223                 direction = 0;
 224             }
 225         }
 226
 227         @Override
 228         public int compare(Viewer viewer, Object e1, Object e2) {
 229             int rc = 0;
 230             if (e1 instanceof NetworkDiagram) {
 231                 NetworkDiagram nd1 = (NetworkDiagram) e1;
 232                 NetworkDiagram nd2 = (NetworkDiagram) e2;
 233                 rc = AlphanumComparator.CASE_INSENSITIVE_COMPARATOR.compare(nd1.name, nd2.name);
 234             } else if (e1 instanceof Subgraph) {
 235                 Subgraph sg1 = (Subgraph) e1;
 236                 Subgraph sg2 = (Subgraph) e2;
 237                 switch (propertyIndex) {
 238                     case 0:
 239                         break;
 240                     case 1:
 241                         rc = Integer.compare(sg1.vertices.size(), sg2.vertices.size());
 242                         break;
 243                     case 2:
 244                         rc = Integer.compare(sg1.edges.size(), sg2.edges.size());
 245                         break;
 246                     default:
 247                         rc = 0;
 248                 }
 249             }
 250             if (direction == DESCENDING)
 251                 rc = -rc;
 252             return rc;
 253         }
 254     }
 255
 256     private void setSortColumn(TreeColumn column, int index) {
 257         treeComparator.setColumn(index);
 258         int dir = treeComparator.getDirection();
 259         tree.getTree().setSortDirection(dir);
 260         tree.getTree().setSortColumn(column);
 261     }
 262
 263     private SelectionListener getSelectionAdapter(TreeColumn column, int index) {
 264         return new SelectionAdapter() {
 265             @Override
 266             public void widgetSelected(SelectionEvent e) {
 267                 setSortColumn(column, index);
 268                 tree.refresh(true);
 269             }
 270         };
 271     }
 272
 273     private Runnable setInput(Input.NetworkDiagrams input) {
 274         return () -> {
 275             if (!tree.getTree().isDisposed())
 276                 tree.setInput(input);
 277         };
 278     }
 279
 280     private void configureInput(Input.NetworkDiagrams input) {
 281         SWTUtils.asyncExec(DistrictNetworkBreakdownPanel.this, setInput(input));
 282     }
 283
 284     private static final String PENDING = "Pending...";
 285     private static final Subgraph[] PENDING_RESULT = {};
 286
 287     private class ContentProvider implements ITreeContentProvider {
 288         @Override
 289         public void dispose() {
 290         }
 291
 292         @Override
 293         public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 294         }
 295
 296         @Override
 297         public Object[] getElements(Object inputElement) {
 298             return ((NetworkDiagrams) inputElement).diagrams.toArray();
 299         }
 300
 301         @Override
 302         public Object getParent(Object element) {
 303             if (element instanceof Subgraph)
 304                 return ((Subgraph) element).parent;
 305             return null;
 306         }
 307
 308         @Override
 309         public Object[] getChildren(Object parentElement) {
 310             if (parentElement instanceof NetworkDiagram) {
 311                 NetworkDiagram nd = (NetworkDiagram) parentElement;
 312                 Subgraph[] sgs = subgraphs.get(nd);
 313                 if (sgs != null)
 314                     return sgs;
 315                 subgraphs.put(nd, PENDING_RESULT);
 316                 new CalculateSubgraphs(nd).schedule();
 317                 return new Object[] { PENDING };
 318             }
 319             return new Object[0];
 320         }
 321
 322         @Override
 323         public boolean hasChildren(Object element) {
 324             if (element instanceof NetworkDiagram) {
 325                 NetworkDiagram nd = (NetworkDiagram) element;
 326                 Subgraph[] sgs = subgraphs.get(nd);
 327                 if (sgs != null)
 328                     return sgs.length > 0;
 329                 // We don't know yet so there might be children
 330                 return true;
 331             }
 332             return false;
 333         }
 334     }
 335
 336     private class NameLabeler extends ColumnLabelProvider {
 337         @Override
 338         public String getText(Object element) {
 339             if (element instanceof NetworkDiagram) {
 340                 return ((Input.NetworkDiagram) element).name;
 341             } else if (element instanceof Subgraph) {
 342                 return "" + ((Subgraph) element).index;
 343             }
 344             return element.toString();
 345         }
 346         @Override
 347         public Image getImage(Object element) {
 348             if (element instanceof NetworkDiagram) {
 349                 return (Image) rm.get(mapImg);
 350             }
 351             return null;
 352         }
 353     }
 354
 355     private class NodeCountLabeler extends ColumnLabelProvider {
 356         @Override
 357         public String getText(Object element) {
 358             if (element instanceof Subgraph) {
 359                 Subgraph sg = (Subgraph) element;
 360                 return Integer.toString(sg.vertices.size());
 361             }
 362             return "";
 363         }
 364     }
 365
 366     private class EdgeCountLabeler extends ColumnLabelProvider {
 367         @Override
 368         public String getText(Object element) {
 369             if (element instanceof Subgraph) {
 370                 Subgraph sg = (Subgraph) element;
 371                 return Integer.toString(sg.edges.size());
 372             }
 373             return "";
 374         }
 375     }
 376
 377     private void trackInput() {
 378         this.inputListener = new DisposableListener<NetworkDiagrams>() {
 379             @Override
 380             public void execute(NetworkDiagrams input) {
 381                 //currentInput = input;
 382                 configureInput(input);
 383             }
 384             @Override
 385             public void exception(Throwable t) {
 386                 LOGGER.error("Problems resolving active models", t);
 387             }
 388         };
 389         Simantics.getSession().asyncRequest(new ResolveInput(Simantics.getProjectResource()), inputListener);
 390     }
 391
 392     private static class ResolveInput extends UnaryRead<Resource, NetworkDiagrams> {
 393
 394         public ResolveInput(Resource parameter) {
 395             super(parameter);
 396         }
 397
 398         @Override
 399         public NetworkDiagrams perform(ReadGraph graph) throws DatabaseException {
 400             DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 401             ModelingResources MOD = ModelingResources.getInstance(graph);
 402             Instances index = graph.getPossibleAdapter(DN.Diagram, Instances.class);
 403             NetworkDiagrams result = new NetworkDiagrams();
 404
 405             for (Resource model : graph.syncRequest(new ActiveModels(parameter))) {
 406                 for (Resource diagram : index.find(graph, model)) {
 407                     Resource composite = graph.getPossibleObject(diagram, MOD.DiagramToComposite);
 408                     String name = NameLabelUtil.modalName(graph, composite != null ? composite : diagram, NameLabelMode.NAME_AND_LABEL);
 409                     result.diagrams.add(new NetworkDiagram(name, diagram));
 410                 }
 411             }
 412
 413             return result;
 414         }
 415
 416     }
 417
 418     private class CalculateSubgraphs extends DatabaseJob {
 419
 420         private NetworkDiagram diagram;
 421
 422         public CalculateSubgraphs(NetworkDiagram diagram) {
 423             super("Calculate subgraphs");
 424             this.diagram = diagram;
 425             setUser(true);
 426             setRule(new ObjectIdentitySchedulingRule(diagram));
 427         }
 428
 429         @Override
 430         protected IStatus run(IProgressMonitor monitor) {
 431             try {
 432                 SubgraphProvider[] sgps = Activator.getInstance().getSubgraphProviders();
 433                 SubMonitor mon = SubMonitor.convert(monitor, NLS.bind("Calculating district network breakdown for {0}", diagram.name), sgps.length);
 434                 List<Subgraph> result = new ArrayList<>();
 435                 for (SubgraphProvider sgp : sgps)
 436                     for (Subgraph sg : sgp.getProvider(mon.split(1), diagram))
 437                         result.add(sg);
 438                 subgraphs.put(diagram, result.toArray(new Subgraph[result.size()]));
 439                 scheduleRefresh(diagram);
 440                 return Status.OK_STATUS;
 441             } finally {
 442                 monitor.done();
 443             }
 444         }
 445
 446     }
 447
 448     private static class ShowSubnetworkAction extends Action {
 449
 450         private final List<Subgraph> subgraphs;
 451
 452         public ShowSubnetworkAction(List<Subgraph> subgraphs) {
 453             super("Show Subnetwork on Diagram");
 454             this.subgraphs = subgraphs;
 455         }
 456
 457         @Override
 458         public void run() {
 459             try {
 460                 openDiagram(subgraphs);
 461             } catch (DatabaseException e) {
 462                 LOGGER.error("Failed to show selected subnetwork", e);
 463             }
 464         }
 465
 466     }
 467
 468     public static boolean openDiagram(List<Subgraph> subgraphs) throws DatabaseException {
 469         if (subgraphs.isEmpty())
 470             return false;
 471         Subgraph subgraph = subgraphs.get(0);
 472         Resource dhElement = subgraph.vertices.size() > 0
 473                 ? subgraph.vertices.get(0)
 474                 : subgraph.edges.size() > 0 ? subgraph.edges.get(0) : null;
 475         DistrictNetworkUIUtil.Input in = dhElement != null
 476                 ? Simantics.getSession().syncRequest(new DistrictNetworkUIUtil.ElementToInput(dhElement)) : null;
 477
 478         if (in != null) {
 479             List<Resource> selection = new ArrayList<>();
 480             subgraphs.forEach(sg -> {
 481                 sg.vertices.forEach(selection::add);
 482                 sg.edges.forEach(selection::add);
 483             });
 484             DistrictNetworkUIUtil.openDNDiagramEditorWithSelection(in, selection.toArray());
 485             return true;
 486         }
 487         return false;
 488     }
 489
 490 }