org.simantics.plant3d/src/org/simantics/plant3d/dialog/ComponentSelectionDialog.java

   1 package org.simantics.plant3d.dialog;
   2
   3 import java.util.Collection;
   4 import java.util.HashSet;
   5 import java.util.List;
   6 import java.util.Set;
   7
   8 import org.eclipse.jface.dialogs.Dialog;
   9 import org.eclipse.jface.dialogs.IDialogConstants;
  10 import org.eclipse.jface.dialogs.IDialogSettings;
  11 import org.eclipse.jface.layout.GridDataFactory;
  12 import org.eclipse.jface.layout.GridLayoutFactory;
  13 import org.eclipse.jface.resource.JFaceResources;
  14 import org.eclipse.jface.resource.LocalResourceManager;
  15 import org.eclipse.jface.resource.ResourceLocator;
  16 import org.eclipse.jface.resource.ResourceManager;
  17 import org.eclipse.jface.viewers.ISelectionChangedListener;
  18 import org.eclipse.jface.viewers.IStructuredSelection;
  19 import org.eclipse.jface.viewers.ListViewer;
  20 import org.eclipse.jface.viewers.SelectionChangedEvent;
  21 import org.eclipse.jface.viewers.StructuredSelection;
  22 import org.eclipse.swt.SWT;
  23 import org.eclipse.swt.events.KeyAdapter;
  24 import org.eclipse.swt.events.KeyEvent;
  25 import org.eclipse.swt.events.SelectionAdapter;
  26 import org.eclipse.swt.events.SelectionEvent;
  27 import org.eclipse.swt.layout.GridData;
  28 import org.eclipse.swt.layout.GridLayout;
  29 import org.eclipse.swt.widgets.Button;
  30 import org.eclipse.swt.widgets.Composite;
  31 import org.eclipse.swt.widgets.Control;
  32 import org.eclipse.swt.widgets.ExpandBar;
  33 import org.eclipse.swt.widgets.ExpandItem;
  34 import org.eclipse.swt.widgets.Label;
  35 import org.eclipse.swt.widgets.Shell;
  36 import org.eclipse.swt.widgets.Text;
  37 import org.simantics.Simantics;
  38 import org.simantics.db.Session;
  39 import org.simantics.db.exception.DatabaseException;
  40 import org.simantics.plant3d.Activator;
  41 import org.simantics.plant3d.ontology.Plant3D;
  42 import org.simantics.plant3d.scenegraph.EndComponent;
  43 import org.simantics.plant3d.scenegraph.InlineComponent;
  44 import org.simantics.plant3d.scenegraph.Nozzle;
  45 import org.simantics.plant3d.scenegraph.PipelineComponent;
  46 import org.simantics.plant3d.scenegraph.TurnComponent;
  47 import org.simantics.plant3d.scenegraph.controlpoint.PipeControlPoint.PositionType;
  48 import org.simantics.plant3d.utils.Item;
  49 import org.simantics.plant3d.utils.Item.Type;
  50 import org.simantics.plant3d.utils.P3DUtil;
  51 import org.simantics.utils.ui.ExceptionUtils;
  52
  53 public class ComponentSelectionDialog extends Dialog implements ISelectionChangedListener {
  54
  55         private static final String DIALOG = "ComponentSelectionDialog"; //$NON-NLS-1$
  56
  57         private IDialogSettings dialogSettings;
  58
  59         private double lengthFactor = 1.0;
  60
  61         private ResourceManager resourceManager;
  62
  63         private String libUri;
  64
  65         private Item selected;
  66         private Set<PositionType> allowed;
  67         private Set<PositionType> filterAllowed;
  68         // private boolean positionAdjustment;
  69         private PipelineComponent component;
  70         private boolean insertAdjustable;
  71         private boolean lenghtAdjustable;
  72         private PositionType insertPosition = PositionType.NEXT;
  73
  74         private Double angle;
  75         private Double length;
  76         private Double rotationAngle;
  77
  78         private String name;
  79
  80         private Text nameText;
  81
  82         // In-line component
  83         private Text lengthText;
  84         // Turn component
  85         private Text angleText;
  86         // Rotated In-line, or turn component.
  87         private Text rotationAngleText;
  88
  89         // Input for new PipeRun
  90         private Double diameter;
  91         private Double thickness;
  92         private Double turnRadius;
  93
  94         private Text diameterText;
  95         private Text thicknessText;
  96         private Text turnRadiusText;
  97
  98         // Validation message label
  99         private Label validationLabel;
 100
 101         // Position selection
 102         private Button startButton;
 103         private Button middleButton;
 104         private Button endButton;
 105
 106         private boolean inlineSplit = false;
 107
 108         ListViewer inlineViewer;
 109         ListViewer turnViewer;
 110         ListViewer endViewer;
 111
 112         private Set<String> usedNames;
 113
 114         public ComponentSelectionDialog(Shell parentShell, Set<PositionType> allowed, PipelineComponent component) {
 115                 this(parentShell, allowed, component, Plant3D.URIs.Builtin);
 116         }
 117
 118         public ComponentSelectionDialog(Shell parentShell, Set<PositionType> allowed, PipelineComponent component,
 119                         String libUri) {
 120                 super(parentShell);
 121                 this.allowed = allowed;
 122                 this.component = component;
 123                 filterAllowed = new HashSet<PositionType>();
 124                 insertAdjustable = component instanceof InlineComponent ? ((InlineComponent) component).isVariableLength()
 125                                 : false;
 126                 lenghtAdjustable = false;
 127                 this.libUri = libUri;
 128
 129                 usedNames = new HashSet<>();
 130
 131                 setShellStyle(getShellStyle() | SWT.RESIZE);
 132
 133                 IDialogSettings settings = Activator.getDefault().getDialogSettings();
 134                 dialogSettings = settings.getSection(DIALOG);
 135                 if (dialogSettings == null)
 136                         dialogSettings = settings.addNewSection(DIALOG);
 137
 138                 if (component.getNext() != null && component.getPrevious() != null)
 139                         insertPosition = PositionType.PREVIOUS;
 140         }
 141
 142         public void setLengthFactor(double lengthFactor) {
 143                 this.lengthFactor = lengthFactor;
 144         }
 145
 146         @Override
 147         protected IDialogSettings getDialogBoundsSettings() {
 148                 return dialogSettings;
 149         }
 150
 151         @Override
 152         protected void configureShell(Shell newShell) {
 153                 super.configureShell(newShell);
 154                 newShell.setText("Create pipeline component");
 155         }
 156
 157         public void addUsedNames(Collection<String> names) {
 158                 usedNames.addAll(names);
 159         }
 160
 161         protected List<Item> getItems(Class<?> c, String libUri) throws DatabaseException {
 162                 Session session = Simantics.getSession();
 163                 if (InlineComponent.class.equals(c)) {
 164                         return P3DUtil.getInlines(session, libUri);
 165                 } else if (TurnComponent.class.equals(c)) {
 166                         return P3DUtil.getTurns(session, libUri);
 167                 } else if (EndComponent.class.equals(c)) {
 168                         return P3DUtil.getEnds(session, libUri);
 169                 } else {
 170                         return null;
 171                 }
 172         }
 173
 174         @Override
 175         protected Control createDialogArea(Composite parent) {
 176                 resourceManager = new LocalResourceManager(JFaceResources.getResources(), parent);
 177
 178                 Composite composite = new Composite(parent, SWT.NONE);
 179                 GridLayout layout = new GridLayout(2, false);
 180                 layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
 181                 layout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);
 182                 layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING);
 183                 layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);
 184                 composite.setLayout(layout);
 185                 composite.setLayoutData(new GridData(GridData.FILL_BOTH));
 186                 applyDialogFont(composite);
 187
 188                 // Grid layout data for fields that grab horizontal space
 189                 final GridDataFactory horizFillData = GridDataFactory.fillDefaults().grab(true, false).align(SWT.FILL, SWT.TOP);
 190
 191                 // TODO : we need better classification than inline,turn, and end:
 192                 // * fixed length inlines
 193                 // * fixed angle turns
 194                 // * size changes (requires input for pipe run specs)
 195                 // * variable length inlines (input for length)
 196                 // * variable angle turns (input for angle)
 197                 // * ends
 198
 199                 List<Item> ends = null;
 200                 List<Item> turns = null;
 201                 List<Item> inlines = null;
 202                 try {
 203                         ends = getItems(EndComponent.class, libUri);
 204                         turns = getItems(TurnComponent.class, libUri);
 205                         inlines = getItems(InlineComponent.class, libUri);
 206                 } catch (DatabaseException e) {
 207                         Label label = new Label(composite, SWT.NONE);
 208                         label.setText("Cannot load pipeline components: " + e.getMessage());
 209                         ExceptionUtils.logError(e);
 210                         return composite;
 211                 }
 212                 ends = P3DUtil.filterUserComponents(ends);
 213                 turns = P3DUtil.filterUserComponents(turns);
 214                 inlines = P3DUtil.filterUserComponents(inlines);
 215
 216                 ExpandBar expandBar = new ExpandBar(composite, SWT.V_SCROLL);
 217
 218                 if (!inlines.isEmpty()) {
 219                         inlineViewer = createItemList(expandBar, inlines, "Inline");
 220                 }
 221
 222                 // Only allow elbows and ends to be added to open ends of the pipelines
 223                 boolean isOpen = component.getNext() == null || component.getPrevious() == null;
 224                 if (isOpen) {
 225                         if (!turns.isEmpty()) {
 226                                 turnViewer = createItemList(expandBar, turns, "Elbow");
 227                         }
 228
 229                         if (!ends.isEmpty()) {
 230                                 turnViewer = createItemList(expandBar, ends, "End");
 231                         }
 232                 }
 233
 234                 GridDataFactory.fillDefaults().grab(true, true).align(SWT.FILL, SWT.FILL).span(2, 1).applyTo(expandBar);
 235                 GridDataFactory.fillDefaults().grab(true, true).minSize(500, 500).hint(500, 500).applyTo(composite);
 236
 237                 Label label = new Label(composite, SWT.NONE);
 238                 label.setText("Position");
 239                 Composite buttonComposite = new Composite(composite, SWT.NONE);
 240                 startButton = new Button(buttonComposite, SWT.TOGGLE);
 241                 middleButton = new Button(buttonComposite, SWT.TOGGLE);
 242                 endButton = new Button(buttonComposite, SWT.TOGGLE);
 243                 startButton.setImage(resourceManager.createImage(
 244                                 ResourceLocator.imageDescriptorFromBundle(Activator.PLUGIN_ID, "icons/insert_start.png").get()));
 245                 middleButton.setImage(resourceManager.createImage(
 246                                 ResourceLocator.imageDescriptorFromBundle(Activator.PLUGIN_ID, "icons/insert_middle.png").get()));
 247                 endButton.setImage(resourceManager.createImage(
 248                                 ResourceLocator.imageDescriptorFromBundle(Activator.PLUGIN_ID, "icons/insert_end.png").get()));
 249                 startButton.setToolTipText("Overlapping insert");
 250                 middleButton.setToolTipText("Cutting insert");
 251                 endButton.setToolTipText("Adding insert");
 252                 horizFillData.applyTo(buttonComposite);
 253                 GridLayoutFactory.fillDefaults().numColumns(3).applyTo(buttonComposite);
 254
 255                 startButton.setSelection(insertPosition == PositionType.PREVIOUS);
 256                 middleButton.setSelection(insertPosition == PositionType.SPLIT);
 257                 endButton.setSelection(insertPosition == PositionType.NEXT);
 258
 259                 startButton.setEnabled(false);
 260                 middleButton.setEnabled(false);
 261                 endButton.setEnabled(false);
 262
 263                 startButton.addSelectionListener(new SelectionAdapter() {
 264                         @Override
 265                         public void widgetSelected(SelectionEvent e) {
 266                                 updateInsertPosition(PositionType.PREVIOUS);
 267                         }
 268                 });
 269
 270                 middleButton.addSelectionListener(new SelectionAdapter() {
 271                         @Override
 272                         public void widgetSelected(SelectionEvent e) {
 273                                 updateInsertPosition(PositionType.SPLIT);
 274                         }
 275                 });
 276                 endButton.addSelectionListener(new SelectionAdapter() {
 277                         @Override
 278                         public void widgetSelected(SelectionEvent e) {
 279                                 updateInsertPosition(PositionType.NEXT);
 280                         }
 281                 });
 282
 283                 if (!hasInsertPosition()) {
 284                         label.setVisible(false);
 285                         buttonComposite.setVisible(false);
 286                 }
 287
 288                 label = new Label(composite, SWT.NONE);
 289                 label.setText("Name");
 290                 nameText = new Text(composite, SWT.SINGLE | SWT.BORDER);
 291
 292                 label = new Label(composite, SWT.NONE);
 293                 label.setText("Length");
 294                 lengthText = new Text(composite, SWT.SINGLE | SWT.BORDER);
 295                 label = new Label(composite, SWT.NONE);
 296                 label.setText("Angle");
 297                 angleText = new Text(composite, SWT.SINGLE | SWT.BORDER);
 298                 label = new Label(composite, SWT.NONE);
 299                 label.setText("Rotation angle");
 300                 rotationAngleText = new Text(composite, SWT.SINGLE | SWT.BORDER);
 301
 302                 label = new Label(composite, SWT.NONE);
 303                 label.setText("Diameter");
 304                 diameterText = new Text(composite, SWT.SINGLE | SWT.BORDER);
 305                 label = new Label(composite, SWT.NONE);
 306                 label.setText("Wall thickness");
 307                 thicknessText = new Text(composite, SWT.SINGLE | SWT.BORDER);
 308                 label = new Label(composite, SWT.NONE);
 309                 label.setText("Elbow radius");
 310                 turnRadiusText = new Text(composite, SWT.SINGLE | SWT.BORDER);
 311
 312                 validationLabel = new Label(composite, SWT.NONE);
 313                 validationLabel.setText("");
 314
 315                 lengthText.setEnabled(false);
 316                 angleText.setEnabled(false);
 317                 rotationAngleText.setEnabled(false);
 318                 turnRadiusText.setEnabled(false);
 319                 diameterText.setEnabled(false);
 320                 thicknessText.setEnabled(false);
 321
 322                 nameText.addKeyListener(new KeyAdapter() {
 323                         @Override
 324                         public void keyReleased(KeyEvent e) {
 325                                 name = nameText.getText();
 326                                 validate();
 327                         }
 328                 });
 329
 330                 lengthText.addKeyListener(new KeyAdapter() {
 331                         @Override
 332                         public void keyReleased(KeyEvent e) {
 333                                 try {
 334                                         length = Double.parseDouble(lengthText.getText()) / lengthFactor;
 335                                 } catch (NumberFormatException err) {
 336                                         length = null;
 337                                 }
 338                                 validate();
 339                         }
 340                 });
 341
 342                 angleText.addKeyListener(new KeyAdapter() {
 343                         @Override
 344                         public void keyReleased(KeyEvent e) {
 345                                 try {
 346                                         angle = Double.parseDouble(angleText.getText());
 347                                 } catch (NumberFormatException err) {
 348                                         angle = null;
 349                                 }
 350                                 validate();
 351                         }
 352                 });
 353
 354                 rotationAngleText.addKeyListener(new KeyAdapter() {
 355                         @Override
 356                         public void keyReleased(KeyEvent e) {
 357                                 try {
 358                                         rotationAngle = Double.parseDouble(rotationAngleText.getText());
 359                                 } catch (NumberFormatException err) {
 360                                         rotationAngle = null;
 361                                 }
 362                                 validate();
 363                         }
 364                 });
 365
 366                 diameterText.addKeyListener(new KeyAdapter() {
 367                         @Override
 368                         public void keyReleased(KeyEvent e) {
 369                                 try {
 370                                         diameter = Double.parseDouble(diameterText.getText()) / lengthFactor;
 371                                 } catch (NumberFormatException err) {
 372                                         diameter = null;
 373                                 }
 374                                 validate();
 375                         }
 376                 });
 377
 378                 thicknessText.addKeyListener(new KeyAdapter() {
 379                         @Override
 380                         public void keyReleased(KeyEvent e) {
 381                                 try {
 382                                         thickness = Double.parseDouble(thicknessText.getText()) / lengthFactor;
 383                                 } catch (NumberFormatException err) {
 384                                         thickness = null;
 385                                 }
 386                                 validate();
 387                         }
 388                 });
 389
 390                 turnRadiusText.addKeyListener(new KeyAdapter() {
 391                         @Override
 392                         public void keyReleased(KeyEvent e) {
 393                                 try {
 394                                         turnRadius = Double.parseDouble(turnRadiusText.getText()) / lengthFactor;
 395                                 } catch (NumberFormatException err) {
 396                                         turnRadius = null;
 397                                 }
 398                                 validate();
 399                         }
 400                 });
 401
 402                 horizFillData.applyTo(nameText);
 403                 horizFillData.applyTo(lengthText);
 404                 horizFillData.applyTo(angleText);
 405                 horizFillData.applyTo(rotationAngleText);
 406                 horizFillData.applyTo(diameterText);
 407                 horizFillData.applyTo(thicknessText);
 408                 horizFillData.applyTo(turnRadiusText);
 409
 410                 GridDataFactory.fillDefaults().span(2, 1).align(SWT.END, SWT.END).grab(true, false).applyTo(validationLabel);
 411
 412                 if (!allowed.contains(PositionType.NEXT) && !allowed.contains(PositionType.PREVIOUS)) {
 413                         turnViewer.getList().setEnabled(false);
 414                         endViewer.getList().setEnabled(false);
 415                         inlineSplit = true;
 416                 }
 417
 418                 return composite;
 419         }
 420
 421         private ListViewer createItemList(ExpandBar expandBar, List<Item> items, String name) {
 422                 ExpandItem expandItem = new ExpandItem(expandBar, SWT.NONE);
 423                 expandItem.setText(name);
 424                 ListViewer viewer = new ListViewer(expandBar);
 425                 viewer.setLabelProvider(new ComponentLabelProvider());
 426                 viewer.setContentProvider(new ComponentContentProvider());
 427
 428                 expandItem.setControl(viewer.getList());
 429                 viewer.setInput(items);
 430                 expandItem.setHeight(viewer.getList().computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
 431                 viewer.addSelectionChangedListener(this);
 432                 return viewer;
 433         }
 434
 435         private boolean hasInsertPosition() {
 436                 return component.getNext() == null || component.getPrevious() == null;
 437         }
 438
 439         private void updateInsertPosition(PositionType type) {
 440                 if (insertPosition == type)
 441                         return;
 442                 startButton.setSelection(type == PositionType.PREVIOUS);
 443                 middleButton.setSelection(type == PositionType.SPLIT);
 444                 endButton.setSelection(type == PositionType.NEXT);
 445                 insertPosition = type;
 446         }
 447
 448         @Override
 449         public void selectionChanged(SelectionChangedEvent event) {
 450                 IStructuredSelection sel = (IStructuredSelection) event.getSelection();
 451                 Item i = (Item) sel.getFirstElement();
 452                 if (i != null) {
 453                         selected = i;
 454                         if (inlineViewer != null && event.getSource() == inlineViewer) {
 455                                 clearSelection(turnViewer);
 456                                 clearSelection(endViewer);
 457                         } else if (turnViewer != null && event.getSource() == turnViewer) {
 458                                 clearSelection(inlineViewer);
 459                                 clearSelection(endViewer);
 460                         } else if (endViewer != null && event.getSource() == endViewer) {
 461                                 clearSelection(inlineViewer);
 462                                 clearSelection(turnViewer);
 463                         }
 464
 465                         name = generateUniqueName(selected.getName());
 466                         nameText.setText(name);
 467
 468                         validate();
 469                 }
 470         }
 471
 472         private void clearSelection(ListViewer possibleListViewer) {
 473                 if (possibleListViewer != null)
 474                         possibleListViewer.setSelection(new StructuredSelection());
 475         }
 476
 477         private void validate() {
 478                 filterAllowed.clear();
 479                 Set<PositionType> filterAllowed = new HashSet<PositionType>();
 480                 boolean ok = true;
 481                 String msg = null;
 482
 483                 if (name.isEmpty() || usedNames.contains(name)) {
 484                         ok = false;
 485                         if (msg == null) {
 486                                 if (name.isEmpty())
 487                                         msg = "Please provide a valid name";
 488                                 else
 489                                         msg = "Name \"" + name + "\" is already in use";
 490                         }
 491                 }
 492
 493                 if (selected == null) {
 494                         ok = false;
 495                 } else if (selected.isCode()) {// TODO : instead of disabling the button, we should filter the content.
 496                         ok = false;
 497                 } else {
 498                         lenghtAdjustable = ((selected.getType() == Type.INLINE)
 499                                         && (selected.isVariable() || selected.isModifiable()));
 500
 501                         if (!hasInsertPosition()) {
 502                                 // We are inserting to a fully connected variable length component
 503                                 // only allow insertion within the component
 504                                 startButton.setEnabled(false);
 505                                 middleButton.setEnabled(false);
 506                                 endButton.setEnabled(false);
 507                                 updateInsertPosition(PositionType.PREVIOUS);
 508                         } else if (insertAdjustable) {
 509                                 switch (selected.getType()) {
 510                                 case END:
 511                                         startButton.setEnabled(false);
 512                                         middleButton.setEnabled(false);
 513                                         endButton.setEnabled(true);
 514                                         updateInsertPosition(PositionType.NEXT);
 515                                         break;
 516                                 case INLINE:
 517                                         if (!selected.isVariable()) {
 518                                                 startButton.setEnabled(true);
 519                                                 middleButton.setEnabled(true);
 520                                                 endButton.setEnabled(true);
 521                                         } else {
 522                                                 startButton.setEnabled(false);
 523                                                 middleButton.setEnabled(false);
 524                                                 endButton.setEnabled(true);
 525                                                 updateInsertPosition(PositionType.NEXT);
 526                                         }
 527                                         break;
 528                                 case NOZZLE:
 529                                         startButton.setEnabled(false);
 530                                         middleButton.setEnabled(false);
 531                                         endButton.setEnabled(true);
 532                                         updateInsertPosition(PositionType.NEXT);
 533                                         break;
 534                                 case TURN:
 535                                         startButton.setEnabled(false);
 536                                         middleButton.setEnabled(true);
 537                                         endButton.setEnabled(true);
 538                                         if (insertPosition == PositionType.PREVIOUS)
 539                                                 updateInsertPosition(PositionType.NEXT);
 540                                         break;
 541                                 case EQUIPMENT:
 542                                         throw new RuntimeException("Expected component, got equipment " + selected);
 543                                 }
 544                         } else if (lenghtAdjustable) {
 545                                 if (component instanceof InlineComponent) {
 546                                         startButton.setEnabled(true);
 547                                         middleButton.setEnabled(true);
 548                                         endButton.setEnabled(true);
 549                                 } else if (component instanceof TurnComponent) {
 550                                         startButton.setEnabled(false);
 551                                         middleButton.setEnabled(true);
 552                                         endButton.setEnabled(true);
 553                                         if (insertPosition == PositionType.PREVIOUS)
 554                                                 updateInsertPosition(PositionType.NEXT);
 555                                 } else if (component instanceof EndComponent || component instanceof Nozzle) {
 556                                         startButton.setEnabled(false);
 557                                         middleButton.setEnabled(false);
 558                                         endButton.setEnabled(true);
 559                                         updateInsertPosition(PositionType.NEXT);
 560                                 }
 561                         } else {
 562                                 startButton.setEnabled(false);
 563                                 middleButton.setEnabled(false);
 564                                 endButton.setEnabled(true);
 565                         }
 566                         if (selected.isVariable() || selected.isModifiable()) {
 567                                 if (selected.getType() == Type.INLINE) {
 568                                         filterAllowed.add(PositionType.NEXT);
 569                                         filterAllowed.add(PositionType.PREVIOUS);
 570                                         if (inlineSplit && selected.isVariable()) {
 571                                                 lengthText.setEnabled(false);
 572                                                 angleText.setEnabled(false);
 573                                                 rotationAngleText.setEnabled(selected.isRotated());
 574                                                 ok = false;
 575                                                 if (msg == null) msg = "Cannot split a straight pipe with a straight pipe";
 576                                         } else {
 577                                                 lengthText.setEnabled(true);
 578                                                 angleText.setEnabled(false);
 579                                                 rotationAngleText.setEnabled(selected.isRotated());
 580                                                 if (length == null || length <= 0.0) {
 581                                                         ok = false;
 582                                                         if (msg == null) msg = "Please provide a valid length";
 583                                                 }
 584                                         }
 585                                 } else if (selected.getType() == Type.TURN) {
 586                                         filterAllowed.add(PositionType.NEXT);
 587                                         filterAllowed.add(PositionType.PREVIOUS);
 588                                         lengthText.setEnabled(false);
 589                                         angleText.setEnabled(true);
 590                                         rotationAngleText.setEnabled(true);
 591                                         if (angle == null) {
 592                                                 ok = false;
 593                                                 if (msg == null) msg = "Please provide a turn angle";
 594                                         }
 595                                 } else {
 596                                         // this should not happen, since end components should not have variable, or
 597                                         // modifiable flag.
 598                                         lengthText.setEnabled(false);
 599                                         angleText.setEnabled(false);
 600                                         rotationAngleText.setEnabled(false);
 601
 602                                 }
 603                         } else {
 604                                 lengthText.setEnabled(false);
 605                                 angleText.setEnabled(false);
 606                                 rotationAngleText.setEnabled(selected.getType() == Type.TURN || selected.isRotated());
 607                         }
 608
 609                         if (selected.isSizeChange()) {
 610                                 turnRadiusText.setEnabled(true);
 611                                 diameterText.setEnabled(true);
 612                                 thicknessText.setEnabled(true);
 613                                 if (diameter == null || diameter <= 0.0) {
 614                                         ok = false;
 615                                         if (msg == null) msg = "Please provide a valid diameter";
 616                                 }
 617                                 if (turnRadius == null || diameter != null && turnRadius < diameter / 2) {
 618                                         ok = false;
 619                                         if (msg == null) msg = "Please provide a valid turn radius";
 620                                 }
 621                                 if (thickness == null || thickness < 0.0 || diameter != null && thickness >= diameter / 2) {
 622                                         ok = false;
 623                                         if (msg == null) msg = "Please provide a valid wall thickness";
 624                                 }
 625                         } else {
 626                                 turnRadiusText.setEnabled(false);
 627                                 diameterText.setEnabled(false);
 628                         }
 629
 630                         if (!selected.isVariable()) {
 631                                 switch (selected.getType()) {
 632                                 case END:
 633                                         filterAllowed.add(PositionType.NEXT);
 634                                         filterAllowed.add(PositionType.PREVIOUS);
 635                                         break;
 636                                 case NOZZLE:
 637                                 case EQUIPMENT:
 638                                         break;
 639                                 case INLINE:
 640                                         filterAllowed.add(PositionType.NEXT);
 641                                         filterAllowed.add(PositionType.PREVIOUS);
 642                                         filterAllowed.add(PositionType.SPLIT);
 643                                 case TURN:
 644                                         filterAllowed.add(PositionType.NEXT);
 645                                         filterAllowed.add(PositionType.PREVIOUS);
 646                                 }
 647                         }
 648                 }
 649                 for (PositionType t : filterAllowed) {
 650                         if (allowed.contains(t))
 651                                 this.filterAllowed.add(t);
 652                 }
 653
 654                 validationLabel.setText(msg != null ? msg : "");
 655                 validationLabel.requestLayout();
 656
 657                 getButton(OK).setEnabled(ok);
 658         }
 659
 660         private String generateUniqueName(String name) {
 661                 int i = 1;
 662                 String newName;
 663                 while (usedNames.contains((newName = name + "_" + i)))
 664                         i++;
 665                 return newName;
 666         }
 667
 668         public Item getSelected() {
 669                 return selected;
 670         }
 671
 672         public String getName() {
 673                 return name;
 674         }
 675
 676         public Double getAngle() {
 677                 return angle;
 678         }
 679
 680         public Double getLength() {
 681                 return length;
 682         }
 683
 684         public Double getRotationAngle() {
 685                 return rotationAngle;
 686         }
 687
 688         public Double getDiameter() {
 689                 return diameter;
 690         }
 691
 692         public Double getTurnRadius() {
 693                 return turnRadius;
 694         }
 695
 696         public Set<PositionType> filterAllowed() {
 697                 return filterAllowed;
 698         }
 699
 700         public PositionType getInsertPosition() {
 701                 return insertPosition;
 702         }
 703
 704         public boolean isInsertAdjustable() {
 705                 return insertAdjustable;
 706         }
 707
 708         public boolean isLenghtAdjustable() {
 709                 return lenghtAdjustable;
 710         }
 711
 712         public Double getThickness() {
 713                 return thickness;
 714         }
 715
 716 }