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.ListIterator;
   7 import java.util.Set;
   8
   9 import org.eclipse.jface.dialogs.Dialog;
  10 import org.eclipse.jface.dialogs.IDialogConstants;
  11 import org.eclipse.jface.dialogs.IDialogSettings;
  12 import org.eclipse.jface.layout.GridDataFactory;
  13 import org.eclipse.jface.layout.GridLayoutFactory;
  14 import org.eclipse.jface.resource.JFaceResources;
  15 import org.eclipse.jface.resource.LocalResourceManager;
  16 import org.eclipse.jface.resource.ResourceLocator;
  17 import org.eclipse.jface.resource.ResourceManager;
  18 import org.eclipse.jface.viewers.ISelectionChangedListener;
  19 import org.eclipse.jface.viewers.IStructuredSelection;
  20 import org.eclipse.jface.viewers.ListViewer;
  21 import org.eclipse.jface.viewers.SelectionChangedEvent;
  22 import org.eclipse.jface.viewers.StructuredSelection;
  23 import org.eclipse.swt.SWT;
  24 import org.eclipse.swt.events.KeyAdapter;
  25 import org.eclipse.swt.events.KeyEvent;
  26 import org.eclipse.swt.events.SelectionAdapter;
  27 import org.eclipse.swt.events.SelectionEvent;
  28 import org.eclipse.swt.layout.GridData;
  29 import org.eclipse.swt.layout.GridLayout;
  30 import org.eclipse.swt.widgets.Button;
  31 import org.eclipse.swt.widgets.Composite;
  32 import org.eclipse.swt.widgets.Control;
  33 import org.eclipse.swt.widgets.ExpandBar;
  34 import org.eclipse.swt.widgets.ExpandItem;
  35 import org.eclipse.swt.widgets.Label;
  36 import org.eclipse.swt.widgets.Shell;
  37 import org.eclipse.swt.widgets.Text;
  38 import org.simantics.Simantics;
  39 import org.simantics.db.Session;
  40 import org.simantics.db.exception.DatabaseException;
  41 import org.simantics.plant3d.Activator;
  42 import org.simantics.plant3d.ontology.Plant3D;
  43 import org.simantics.plant3d.scenegraph.EndComponent;
  44 import org.simantics.plant3d.scenegraph.InlineComponent;
  45 import org.simantics.plant3d.scenegraph.Nozzle;
  46 import org.simantics.plant3d.scenegraph.PipeRun;
  47 import org.simantics.plant3d.scenegraph.PipelineComponent;
  48 import org.simantics.plant3d.scenegraph.TurnComponent;
  49 import org.simantics.plant3d.scenegraph.controlpoint.PipeControlPoint.PositionType;
  50 import org.simantics.plant3d.utils.Item;
  51 import org.simantics.plant3d.utils.Item.Type;
  52 import org.simantics.plant3d.utils.P3DUtil;
  53 import org.simantics.utils.ui.ExceptionUtils;
  54
  55 public class ComponentSelectionDialog extends Dialog implements ISelectionChangedListener {
  56
  57         private static final String DIALOG = "ComponentSelectionDialog"; //$NON-NLS-1$
  58
  59         private IDialogSettings dialogSettings;
  60
  61         private double lengthFactor = 1.0;
  62
  63         private ResourceManager resourceManager;
  64
  65         private String libUri;
  66
  67         private Item selected;
  68         private Set<PositionType> allowed;
  69         private Set<PositionType> filterAllowed;
  70         // private boolean positionAdjustment;
  71         private PipelineComponent component;
  72         private boolean insertAdjustable;
  73         private boolean lenghtAdjustable;
  74         private PositionType insertPosition = PositionType.NEXT;
  75
  76         private Double angle;
  77         private Double length;
  78         private Double rotationAngle;
  79
  80         private String name;
  81
  82         private Text nameText;
  83
  84         // In-line component
  85         private Text lengthText;
  86         // Turn component
  87         private Text angleText;
  88         // Rotated In-line, or turn component.
  89         private Text rotationAngleText;
  90
  91         // Input for new PipeRun
  92         private Double diameter;
  93         private Double thickness;
  94         private Double turnRadius;
  95
  96         private Text diameterText;
  97         private Text thicknessText;
  98         private Text turnRadiusText;
  99
 100         // Validation message label
 101         private Label validationLabel;
 102
 103         // Position selection
 104         private Button startButton;
 105         private Button middleButton;
 106         private Button endButton;
 107
 108         private boolean inlineSplit = false;
 109
 110         ListViewer inlineViewer;
 111         ListViewer turnViewer;
 112         ListViewer endViewer;
 113
 114         private Set<String> usedNames;
 115
 116         public ComponentSelectionDialog(Shell parentShell, Set<PositionType> allowed, PipelineComponent component) {
 117                 this(parentShell, allowed, component, Plant3D.URIs.Builtin);
 118         }
 119
 120         public ComponentSelectionDialog(Shell parentShell, Set<PositionType> allowed, PipelineComponent component,
 121                         String libUri) {
 122                 super(parentShell);
 123                 this.allowed = allowed;
 124                 this.component = component;
 125                 filterAllowed = new HashSet<PositionType>();
 126                 insertAdjustable = component instanceof InlineComponent ? ((InlineComponent) component).isVariableLength()
 127                                 : false;
 128                 lenghtAdjustable = false;
 129                 this.libUri = libUri;
 130
 131                 usedNames = new HashSet<>();
 132
 133                 setShellStyle(getShellStyle() | SWT.RESIZE);
 134
 135                 IDialogSettings settings = Activator.getDefault().getDialogSettings();
 136                 dialogSettings = settings.getSection(DIALOG);
 137                 if (dialogSettings == null)
 138                         dialogSettings = settings.addNewSection(DIALOG);
 139
 140                 if (component.getNext() != null && component.getPrevious() != null)
 141                         insertPosition = PositionType.PREVIOUS;
 142         }
 143
 144         private void copyPipeRunParameters() {
 145                 PipeRun run = component.getPipeRun();
 146                 if (component.getNext() == null && component.getAlternativePipeRun() != null)
 147                         run = component.getAlternativePipeRun();
 148
 149                 if (run == null)
 150                         return;
 151
 152                 diameter = run.getPipeDiameter();
 153                 thickness = run.getPipeThickness();
 154                 turnRadius = run.getTurnRadius();
 155
 156                 diameterText.setText(Double.toString(diameter * lengthFactor));
 157                 thicknessText.setText(Double.toString(thickness * lengthFactor));
 158                 turnRadiusText.setText(Double.toString(turnRadius * lengthFactor));
 159         }
 160
 161         public void setLengthFactor(double lengthFactor) {
 162                 this.lengthFactor = lengthFactor;
 163         }
 164
 165         @Override
 166         protected IDialogSettings getDialogBoundsSettings() {
 167                 return dialogSettings;
 168         }
 169
 170         @Override
 171         protected void configureShell(Shell newShell) {
 172                 super.configureShell(newShell);
 173                 newShell.setText("Create pipeline component");
 174         }
 175
 176         public void addUsedNames(Collection<String> names) {
 177                 usedNames.addAll(names);
 178         }
 179
 180         protected List<Item> getItems(Class<?> c, String libUri) throws DatabaseException {
 181                 Session session = Simantics.getSession();
 182                 if (InlineComponent.class.equals(c)) {
 183                         return P3DUtil.getInlines(session, libUri);
 184                 } else if (TurnComponent.class.equals(c)) {
 185                         return P3DUtil.getTurns(session, libUri);
 186                 } else if (EndComponent.class.equals(c)) {
 187                         return P3DUtil.getEnds(session, libUri);
 188                 } else {
 189                         return null;
 190                 }
 191         }
 192
 193         @Override
 194         protected Control createDialogArea(Composite parent) {
 195                 resourceManager = new LocalResourceManager(JFaceResources.getResources(), parent);
 196
 197                 Composite composite = new Composite(parent, SWT.NONE);
 198                 GridLayout layout = new GridLayout(2, false);
 199                 layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
 200                 layout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);
 201                 layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING);
 202                 layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);
 203                 composite.setLayout(layout);
 204                 composite.setLayoutData(new GridData(GridData.FILL_BOTH));
 205                 applyDialogFont(composite);
 206
 207                 // Grid layout data for fields that grab horizontal space
 208                 final GridDataFactory horizFillData = GridDataFactory.fillDefaults().grab(true, false).align(SWT.FILL, SWT.TOP);
 209
 210                 // TODO : we need better classification than inline,turn, and end:
 211                 // * fixed length inlines
 212                 // * fixed angle turns
 213                 // * size changes (requires input for pipe run specs)
 214                 // * variable length inlines (input for length)
 215                 // * variable angle turns (input for angle)
 216                 // * ends
 217
 218                 List<Item> ends = null;
 219                 List<Item> turns = null;
 220                 List<Item> inlines = null;
 221                 try {
 222                         ends = getItems(EndComponent.class, libUri);
 223                         turns = getItems(TurnComponent.class, libUri);
 224                         inlines = getItems(InlineComponent.class, libUri);
 225                 } catch (DatabaseException e) {
 226                         Label label = new Label(composite, SWT.NONE);
 227                         label.setText("Cannot load pipeline components: " + e.getMessage());
 228                         ExceptionUtils.logError(e);
 229                         return composite;
 230                 }
 231                 ends = P3DUtil.filterUserComponents(ends);
 232                 turns = P3DUtil.filterUserComponents(turns);
 233                 inlines = P3DUtil.filterUserComponents(inlines);
 234
 235                 ExpandBar expandBar = new ExpandBar(composite, SWT.V_SCROLL);
 236
 237                 boolean isOpen = component.getNext() == null || component.getPrevious() == null;
 238                 if (!inlines.isEmpty()) {
 239                         if (!isOpen) {
 240                                 // Remove variable length pipe from options
 241                                 ListIterator<Item> it = inlines.listIterator();
 242                                 while (it.hasNext()) {
 243                                         Item item = it.next();
 244                                         if (item.isVariable())
 245                                                 it.remove();
 246                                 }
 247                         }
 248
 249                         inlineViewer = createItemList(expandBar, inlines, "Inline");
 250                 }
 251
 252                 // Only allow elbows and ends to be added to open ends of the pipelines
 253                 if (isOpen) {
 254                         if (!turns.isEmpty()) {
 255                                 turnViewer = createItemList(expandBar, turns, "Elbow");
 256                         }
 257
 258                         if (!ends.isEmpty()) {
 259                                 turnViewer = createItemList(expandBar, ends, "End");
 260                         }
 261                 }
 262
 263                 GridDataFactory.fillDefaults().grab(true, true).align(SWT.FILL, SWT.FILL).span(2, 1).applyTo(expandBar);
 264                 GridDataFactory.fillDefaults().grab(true, true).minSize(500, 500).hint(500, 500).applyTo(composite);
 265
 266                 Label label = new Label(composite, SWT.NONE);
 267                 label.setText("Position");
 268                 Composite buttonComposite = new Composite(composite, SWT.NONE);
 269                 startButton = new Button(buttonComposite, SWT.TOGGLE);
 270                 middleButton = new Button(buttonComposite, SWT.TOGGLE);
 271                 endButton = new Button(buttonComposite, SWT.TOGGLE);
 272                 startButton.setImage(resourceManager.createImage(
 273                                 ResourceLocator.imageDescriptorFromBundle(Activator.PLUGIN_ID, "icons/insert_start.png").get()));
 274                 middleButton.setImage(resourceManager.createImage(
 275                                 ResourceLocator.imageDescriptorFromBundle(Activator.PLUGIN_ID, "icons/insert_middle.png").get()));
 276                 endButton.setImage(resourceManager.createImage(
 277                                 ResourceLocator.imageDescriptorFromBundle(Activator.PLUGIN_ID, "icons/insert_end.png").get()));
 278                 startButton.setToolTipText("Overlapping insert");
 279                 middleButton.setToolTipText("Cutting insert");
 280                 endButton.setToolTipText("Adding insert");
 281                 horizFillData.applyTo(buttonComposite);
 282                 GridLayoutFactory.fillDefaults().numColumns(3).applyTo(buttonComposite);
 283
 284                 startButton.setSelection(insertPosition == PositionType.PREVIOUS);
 285                 middleButton.setSelection(insertPosition == PositionType.SPLIT);
 286                 endButton.setSelection(insertPosition == PositionType.NEXT);
 287
 288                 startButton.setEnabled(false);
 289                 middleButton.setEnabled(false);
 290                 endButton.setEnabled(false);
 291
 292                 startButton.addSelectionListener(new SelectionAdapter() {
 293                         @Override
 294                         public void widgetSelected(SelectionEvent e) {
 295                                 updateInsertPosition(PositionType.PREVIOUS);
 296                         }
 297                 });
 298
 299                 middleButton.addSelectionListener(new SelectionAdapter() {
 300                         @Override
 301                         public void widgetSelected(SelectionEvent e) {
 302                                 updateInsertPosition(PositionType.SPLIT);
 303                         }
 304                 });
 305                 endButton.addSelectionListener(new SelectionAdapter() {
 306                         @Override
 307                         public void widgetSelected(SelectionEvent e) {
 308                                 updateInsertPosition(PositionType.NEXT);
 309                         }
 310                 });
 311
 312                 if (!hasInsertPosition()) {
 313                         label.setVisible(false);
 314                         buttonComposite.setVisible(false);
 315                 }
 316
 317                 label = new Label(composite, SWT.NONE);
 318                 label.setText("Name");
 319                 nameText = new Text(composite, SWT.SINGLE | SWT.BORDER);
 320
 321                 label = new Label(composite, SWT.NONE);
 322                 label.setText("Length");
 323                 lengthText = new Text(composite, SWT.SINGLE | SWT.BORDER);
 324                 label = new Label(composite, SWT.NONE);
 325                 label.setText("Angle");
 326                 angleText = new Text(composite, SWT.SINGLE | SWT.BORDER);
 327                 label = new Label(composite, SWT.NONE);
 328                 label.setText("Rotation angle");
 329                 rotationAngleText = new Text(composite, SWT.SINGLE | SWT.BORDER);
 330
 331                 label = new Label(composite, SWT.NONE);
 332                 label.setText("Diameter");
 333                 diameterText = new Text(composite, SWT.SINGLE | SWT.BORDER);
 334                 label = new Label(composite, SWT.NONE);
 335                 label.setText("Wall thickness");
 336                 thicknessText = new Text(composite, SWT.SINGLE | SWT.BORDER);
 337                 label = new Label(composite, SWT.NONE);
 338                 label.setText("Elbow radius");
 339                 turnRadiusText = new Text(composite, SWT.SINGLE | SWT.BORDER);
 340
 341                 validationLabel = new Label(composite, SWT.NONE);
 342                 validationLabel.setText("");
 343
 344                 lengthText.setEnabled(false);
 345                 angleText.setEnabled(false);
 346                 rotationAngleText.setEnabled(false);
 347                 turnRadiusText.setEnabled(false);
 348                 diameterText.setEnabled(false);
 349                 thicknessText.setEnabled(false);
 350
 351                 copyPipeRunParameters();
 352
 353                 nameText.addKeyListener(new KeyAdapter() {
 354                         @Override
 355                         public void keyReleased(KeyEvent e) {
 356                                 name = nameText.getText();
 357                                 validate();
 358                         }
 359                 });
 360
 361                 lengthText.addKeyListener(new KeyAdapter() {
 362                         @Override
 363                         public void keyReleased(KeyEvent e) {
 364                                 try {
 365                                         length = Double.parseDouble(lengthText.getText()) / lengthFactor;
 366                                 } catch (NumberFormatException err) {
 367                                         length = null;
 368                                 }
 369                                 validate();
 370                         }
 371                 });
 372
 373                 angleText.addKeyListener(new KeyAdapter() {
 374                         @Override
 375                         public void keyReleased(KeyEvent e) {
 376                                 try {
 377                                         angle = Double.parseDouble(angleText.getText());
 378                                 } catch (NumberFormatException err) {
 379                                         angle = null;
 380                                 }
 381                                 validate();
 382                         }
 383                 });
 384
 385                 rotationAngleText.addKeyListener(new KeyAdapter() {
 386                         @Override
 387                         public void keyReleased(KeyEvent e) {
 388                                 try {
 389                                         rotationAngle = Double.parseDouble(rotationAngleText.getText());
 390                                 } catch (NumberFormatException err) {
 391                                         rotationAngle = null;
 392                                 }
 393                                 validate();
 394                         }
 395                 });
 396
 397                 diameterText.addKeyListener(new KeyAdapter() {
 398                         @Override
 399                         public void keyReleased(KeyEvent e) {
 400                                 try {
 401                                         diameter = Double.parseDouble(diameterText.getText()) / lengthFactor;
 402                                 } catch (NumberFormatException err) {
 403                                         diameter = null;
 404                                 }
 405                                 validate();
 406                         }
 407                 });
 408
 409                 thicknessText.addKeyListener(new KeyAdapter() {
 410                         @Override
 411                         public void keyReleased(KeyEvent e) {
 412                                 try {
 413                                         thickness = Double.parseDouble(thicknessText.getText()) / lengthFactor;
 414                                 } catch (NumberFormatException err) {
 415                                         thickness = null;
 416                                 }
 417                                 validate();
 418                         }
 419                 });
 420
 421                 turnRadiusText.addKeyListener(new KeyAdapter() {
 422                         @Override
 423                         public void keyReleased(KeyEvent e) {
 424                                 try {
 425                                         turnRadius = Double.parseDouble(turnRadiusText.getText()) / lengthFactor;
 426                                 } catch (NumberFormatException err) {
 427                                         turnRadius = null;
 428                                 }
 429                                 validate();
 430                         }
 431                 });
 432
 433                 horizFillData.applyTo(nameText);
 434                 horizFillData.applyTo(lengthText);
 435                 horizFillData.applyTo(angleText);
 436                 horizFillData.applyTo(rotationAngleText);
 437                 horizFillData.applyTo(diameterText);
 438                 horizFillData.applyTo(thicknessText);
 439                 horizFillData.applyTo(turnRadiusText);
 440
 441                 GridDataFactory.fillDefaults().span(2, 1).align(SWT.END, SWT.END).grab(true, false).applyTo(validationLabel);
 442
 443                 if (!allowed.contains(PositionType.NEXT) && !allowed.contains(PositionType.PREVIOUS)) {
 444                         turnViewer.getList().setEnabled(false);
 445                         endViewer.getList().setEnabled(false);
 446                         inlineSplit = true;
 447                 }
 448
 449                 return composite;
 450         }
 451
 452         private ListViewer createItemList(ExpandBar expandBar, List<Item> items, String name) {
 453                 ExpandItem expandItem = new ExpandItem(expandBar, SWT.NONE);
 454                 expandItem.setText(name);
 455                 ListViewer viewer = new ListViewer(expandBar);
 456                 viewer.setLabelProvider(new ComponentLabelProvider());
 457                 viewer.setContentProvider(new ComponentContentProvider());
 458
 459                 expandItem.setControl(viewer.getList());
 460                 viewer.setInput(items);
 461                 expandItem.setHeight(viewer.getList().computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
 462                 viewer.addSelectionChangedListener(this);
 463                 return viewer;
 464         }
 465
 466         private boolean hasInsertPosition() {
 467                 return component.getNext() == null || component.getPrevious() == null;
 468         }
 469
 470         private void updateInsertPosition(PositionType type) {
 471                 if (insertPosition == type)
 472                         return;
 473                 startButton.setSelection(type == PositionType.PREVIOUS);
 474                 middleButton.setSelection(type == PositionType.SPLIT);
 475                 endButton.setSelection(type == PositionType.NEXT);
 476                 insertPosition = type;
 477         }
 478
 479         @Override
 480         public void selectionChanged(SelectionChangedEvent event) {
 481                 IStructuredSelection sel = (IStructuredSelection) event.getSelection();
 482                 Item i = (Item) sel.getFirstElement();
 483                 if (i != null) {
 484                         selected = i;
 485                         if (inlineViewer != null && event.getSource() == inlineViewer) {
 486                                 clearSelection(turnViewer);
 487                                 clearSelection(endViewer);
 488                         } else if (turnViewer != null && event.getSource() == turnViewer) {
 489                                 clearSelection(inlineViewer);
 490                                 clearSelection(endViewer);
 491                         } else if (endViewer != null && event.getSource() == endViewer) {
 492                                 clearSelection(inlineViewer);
 493                                 clearSelection(turnViewer);
 494                         }
 495
 496                         name = generateUniqueName(selected.getName());
 497                         nameText.setText(name);
 498
 499                         validate();
 500                 }
 501         }
 502
 503         private void clearSelection(ListViewer possibleListViewer) {
 504                 if (possibleListViewer != null)
 505                         possibleListViewer.setSelection(new StructuredSelection());
 506         }
 507
 508         private void validate() {
 509                 filterAllowed.clear();
 510                 Set<PositionType> filterAllowed = new HashSet<PositionType>();
 511                 boolean ok = true;
 512                 String msg = null;
 513
 514                 if (name.isEmpty() || usedNames.contains(name)) {
 515                         ok = false;
 516                         if (msg == null) {
 517                                 if (name.isEmpty())
 518                                         msg = "Please provide a valid name";
 519                                 else
 520                                         msg = "Name \"" + name + "\" is already in use";
 521                         }
 522                 }
 523
 524                 if (selected == null) {
 525                         ok = false;
 526                 } else if (selected.isCode()) {// TODO : instead of disabling the button, we should filter the content.
 527                         ok = false;
 528                 } else {
 529                         lenghtAdjustable = ((selected.getType() == Type.INLINE)
 530                                         && (selected.isVariable() || selected.isModifiable()));
 531
 532                         if (!hasInsertPosition()) {
 533                                 // We are inserting to a fully connected variable length component
 534                                 // only allow insertion within the component
 535                                 startButton.setEnabled(false);
 536                                 middleButton.setEnabled(false);
 537                                 endButton.setEnabled(false);
 538                                 updateInsertPosition(PositionType.PREVIOUS);
 539                         } else if (insertAdjustable) {
 540                                 switch (selected.getType()) {
 541                                 case END:
 542                                         startButton.setEnabled(false);
 543                                         middleButton.setEnabled(false);
 544                                         endButton.setEnabled(true);
 545                                         updateInsertPosition(PositionType.NEXT);
 546                                         break;
 547                                 case INLINE:
 548                                         if (!selected.isVariable()) {
 549                                                 startButton.setEnabled(true);
 550                                                 middleButton.setEnabled(true);
 551                                                 endButton.setEnabled(true);
 552                                         } else {
 553                                                 startButton.setEnabled(false);
 554                                                 middleButton.setEnabled(false);
 555                                                 endButton.setEnabled(true);
 556                                                 updateInsertPosition(PositionType.NEXT);
 557                                         }
 558                                         break;
 559                                 case NOZZLE:
 560                                         startButton.setEnabled(false);
 561                                         middleButton.setEnabled(false);
 562                                         endButton.setEnabled(true);
 563                                         updateInsertPosition(PositionType.NEXT);
 564                                         break;
 565                                 case TURN:
 566                                         startButton.setEnabled(false);
 567                                         middleButton.setEnabled(true);
 568                                         endButton.setEnabled(true);
 569                                         if (insertPosition == PositionType.PREVIOUS)
 570                                                 updateInsertPosition(PositionType.NEXT);
 571                                         break;
 572                                 case EQUIPMENT:
 573                                         throw new RuntimeException("Expected component, got equipment " + selected);
 574                                 }
 575                         } else if (lenghtAdjustable) {
 576                                 if (component instanceof InlineComponent) {
 577                                         startButton.setEnabled(true);
 578                                         middleButton.setEnabled(true);
 579                                         endButton.setEnabled(true);
 580                                 } else if (component instanceof TurnComponent) {
 581                                         startButton.setEnabled(false);
 582                                         middleButton.setEnabled(true);
 583                                         endButton.setEnabled(true);
 584                                         if (insertPosition == PositionType.PREVIOUS)
 585                                                 updateInsertPosition(PositionType.NEXT);
 586                                 } else if (component instanceof EndComponent || component instanceof Nozzle) {
 587                                         startButton.setEnabled(false);
 588                                         middleButton.setEnabled(false);
 589                                         endButton.setEnabled(true);
 590                                         updateInsertPosition(PositionType.NEXT);
 591                                 }
 592                         } else {
 593                                 startButton.setEnabled(false);
 594                                 middleButton.setEnabled(false);
 595                                 endButton.setEnabled(true);
 596                         }
 597                         if (selected.isVariable() || selected.isModifiable()) {
 598                                 if (selected.getType() == Type.INLINE) {
 599                                         filterAllowed.add(PositionType.NEXT);
 600                                         filterAllowed.add(PositionType.PREVIOUS);
 601                                         if (inlineSplit && selected.isVariable()) {
 602                                                 lengthText.setEnabled(false);
 603                                                 angleText.setEnabled(false);
 604                                                 rotationAngleText.setEnabled(selected.isRotated());
 605                                                 ok = false;
 606                                                 if (msg == null) msg = "Cannot split a straight pipe with a straight pipe";
 607                                         } else {
 608                                                 lengthText.setEnabled(true);
 609                                                 angleText.setEnabled(false);
 610                                                 rotationAngleText.setEnabled(selected.isRotated());
 611                                                 if (length == null || length <= 0.0) {
 612                                                         ok = false;
 613                                                         if (msg == null) msg = "Please provide a valid length";
 614                                                 }
 615                                         }
 616                                 } else if (selected.getType() == Type.TURN) {
 617                                         filterAllowed.add(PositionType.NEXT);
 618                                         filterAllowed.add(PositionType.PREVIOUS);
 619                                         lengthText.setEnabled(false);
 620                                         angleText.setEnabled(true);
 621                                         rotationAngleText.setEnabled(true);
 622                                         if (angle == null) {
 623                                                 ok = false;
 624                                                 if (msg == null) msg = "Please provide a turn angle";
 625                                         }
 626                                 } else {
 627                                         // this should not happen, since end components should not have variable, or
 628                                         // modifiable flag.
 629                                         lengthText.setEnabled(false);
 630                                         angleText.setEnabled(false);
 631                                         rotationAngleText.setEnabled(false);
 632
 633                                 }
 634                         } else {
 635                                 lengthText.setEnabled(false);
 636                                 angleText.setEnabled(false);
 637                                 rotationAngleText.setEnabled(selected.getType() == Type.TURN || selected.isRotated());
 638                         }
 639
 640                         if (selected.isSizeChange()) {
 641                                 turnRadiusText.setEnabled(true);
 642                                 diameterText.setEnabled(true);
 643                                 thicknessText.setEnabled(true);
 644                                 if (diameter == null || diameter <= 0.0) {
 645                                         ok = false;
 646                                         if (msg == null) msg = "Please provide a valid diameter";
 647                                 }
 648                                 if (turnRadius == null || diameter != null && turnRadius < diameter / 2) {
 649                                         ok = false;
 650                                         if (msg == null) msg = "Please provide a valid turn radius";
 651                                 }
 652                                 if (thickness == null || thickness < 0.0 || diameter != null && thickness >= diameter / 2) {
 653                                         ok = false;
 654                                         if (msg == null) msg = "Please provide a valid wall thickness";
 655                                 }
 656                         } else {
 657                                 turnRadiusText.setEnabled(false);
 658                                 diameterText.setEnabled(false);
 659                                 thicknessText.setEnabled(false);
 660                         }
 661
 662                         if (!selected.isVariable()) {
 663                                 switch (selected.getType()) {
 664                                 case END:
 665                                         filterAllowed.add(PositionType.NEXT);
 666                                         filterAllowed.add(PositionType.PREVIOUS);
 667                                         break;
 668                                 case NOZZLE:
 669                                 case EQUIPMENT:
 670                                         break;
 671                                 case INLINE:
 672                                         filterAllowed.add(PositionType.NEXT);
 673                                         filterAllowed.add(PositionType.PREVIOUS);
 674                                         filterAllowed.add(PositionType.SPLIT);
 675                                 case TURN:
 676                                         filterAllowed.add(PositionType.NEXT);
 677                                         filterAllowed.add(PositionType.PREVIOUS);
 678                                 }
 679                         }
 680                 }
 681                 for (PositionType t : filterAllowed) {
 682                         if (allowed.contains(t))
 683                                 this.filterAllowed.add(t);
 684                 }
 685
 686                 validationLabel.setText(msg != null ? msg : "");
 687                 validationLabel.requestLayout();
 688
 689                 getButton(OK).setEnabled(ok);
 690         }
 691
 692         private String generateUniqueName(String name) {
 693                 int i = 1;
 694                 String newName;
 695                 while (usedNames.contains((newName = name + "_" + i)))
 696                         i++;
 697                 return newName;
 698         }
 699
 700         public Item getSelected() {
 701                 return selected;
 702         }
 703
 704         public String getName() {
 705                 return name;
 706         }
 707
 708         public Double getAngle() {
 709                 return angle;
 710         }
 711
 712         public Double getLength() {
 713                 return length;
 714         }
 715
 716         public Double getRotationAngle() {
 717                 return rotationAngle;
 718         }
 719
 720         public Double getDiameter() {
 721                 return diameter;
 722         }
 723
 724         public Double getTurnRadius() {
 725                 return turnRadius;
 726         }
 727
 728         public Set<PositionType> filterAllowed() {
 729                 return filterAllowed;
 730         }
 731
 732         public PositionType getInsertPosition() {
 733                 return insertPosition;
 734         }
 735
 736         public boolean isInsertAdjustable() {
 737                 return insertAdjustable;
 738         }
 739
 740         public boolean isLenghtAdjustable() {
 741                 return lenghtAdjustable;
 742         }
 743
 744         public Double getThickness() {
 745                 return thickness;
 746         }
 747
 748 }