Examples with NodeContainerUI org.knime.core.ui.node.workflow.NodeContainerUI used on opensource projects

Example 36 with NodeContainerUI

use of org.knime.core.ui.node.workflow.NodeContainerUI in project knime-core by knime.

the class WorkflowCoachView method updateInput.

private void updateInput(final ISelection selection) {
    if (NodeRecommendationManager.getInstance().getNumLoadedProviders() == 0) {
        // if there is at least one enabled triple provider then the statistics might need to be download first
        if (NodeRecommendationManager.getInstance().getNodeTripleProviders().stream().anyMatch(ntp -> ntp.isEnabled())) {
            if (m_loadState.get() == LoadState.Disposed) {
                return;
            }
            m_loadState.set(LoadState.LoadingNodes);
            updateInput("Loading recommendations ...");
            // try updating the triple provider that are enabled and require an update
            updateTripleProviders(e -> {
                m_loadState.set(LoadState.Initizalized);
                if (e.isPresent()) {
                    updateInputNoProvider();
                } else {
                    try {
                        NodeRecommendationManager.getInstance().loadRecommendations();
                        if (NodeRecommendationManager.getInstance().getNumLoadedProviders() == 0) {
                            // if there are still no triple provider, show link
                            updateInputNoProvider();
                        } else {
                            updateInput("Statistics successfully loaded. Select a node...");
                        }
                    } catch (Exception e1) {
                        updateInputNoProvider();
                    }
                }
            }, true, false);
        } else {
            // no triple provider enabled -> needs to be configured
            updateInputNoProvider();
            return;
        }
    }
    IStructuredSelection structSel = (IStructuredSelection) selection;
    if (structSel.size() > 1) {
        updateInput("No recommendation for multiple selected nodes.");
        return;
    }
    // retrieve first (and only!) selection:
    Iterator<?> selIt = structSel.iterator();
    boolean nodeSelected = selIt.hasNext();
    NodeContainer nc = null;
    if (nodeSelected) {
        Object sel = selIt.next();
        nodeSelected &= (sel instanceof NodeContainerEditPart);
        if (nodeSelected) {
            NodeContainerUI uinc = ((NodeContainerEditPart) sel).getNodeContainer();
            if (!Wrapper.wraps(uinc, NodeContainer.class)) {
                updateInput("Worklfow coach only supports native nodes, so far.\nBut the selected one is of type '" + uinc.getClass().getSimpleName() + "'.");
                return;
            } else {
                nc = Wrapper.unwrapNC(uinc);
                nodeSelected &= nc instanceof NativeNodeContainer;
            }
        }
    }
    // -> in that case no redraw is required
    if (nodeSelected) {
        if (m_lastSelection.equals(nc.getNameWithID())) {
            return;
        } else {
            m_lastSelection = nc.getNameWithID();
        }
    } else {
        if (m_lastSelection.equals("no node selected")) {
            return;
        } else {
            m_lastSelection = "no node selected";
        }
    }
    List<NodeRecommendation>[] recommendations;
    if (nodeSelected) {
        // retrieve node recommendations if exactly one node is selected
        recommendations = NodeRecommendationManager.getInstance().getNodeRecommendationFor((NativeNodeContainer) nc);
    } else if (nc == null) {
        // retrieve node recommendations if no node is selected (most likely the source nodes etc.)
        recommendations = NodeRecommendationManager.getInstance().getNodeRecommendationFor();
    } else {
        Display.getDefault().syncExec(() -> {
            m_viewer.setInput("");
            m_viewer.refresh();
        });
        return;
    }
    if (recommendations == null) {
        // something went wrong with loading the node recommendations, show the configure link
        updateInputNoProvider();
        return;
    }
    // TODO: cache node recommendations??
    int maxSize = 0;
    for (List<NodeRecommendation> l : recommendations) {
        maxSize = Math.max(maxSize, l.size());
    }
    List<NodeRecommendation[]> recommendationsJoined = joinRecommendations(recommendations, maxSize);
    // remove duplicates from list
    Set<String> duplicates = new HashSet<>();
    List<NodeRecommendation[]> recommendationsWithoutDups = new ArrayList<>(recommendationsJoined.size());
    for (NodeRecommendation[] nrs : recommendationsJoined) {
        int idx = getNonNullIdx(nrs);
        if (duplicates.add(nrs[idx].toString())) {
            recommendationsWithoutDups.add(nrs);
        }
    }
    // update viewer
    changeViewerStateTo(ViewerState.RECOMMENDATIONS);
    Display.getDefault().syncExec(() -> {
        m_viewer.setInput(recommendationsWithoutDups);
        m_viewer.refresh();
        m_recommendationsAvailable = true;
        // scroll to the very top
        if (!recommendationsWithoutDups.isEmpty()) {
            m_viewer.getTable().setTopIndex(0);
        }
    });
}

Example 37 with NodeContainerUI

use of org.knime.core.ui.node.workflow.NodeContainerUI in project knime-core by knime.

the class WorkflowContextMenuProvider method buildContextMenu.

/**
 * {@inheritDoc}
 */
@Override
public void buildContextMenu(final IMenuManager manager) {
    final String FLOW_VAR_PORT_GRP = "Flow Variable Ports";
    // add the groups (grouped by separators) in their order first
    manager.add(new Separator(IWorkbenchActionConstants.GROUP_APP));
    manager.add(new Separator(FLOW_VAR_PORT_GRP));
    GEFActionConstants.addStandardActionGroups(manager);
    IAction action;
    action = m_actionRegistry.getAction("cut");
    manager.appendToGroup(GEFActionConstants.GROUP_EDIT, action);
    ((UpdateAction) action).update();
    action = m_actionRegistry.getAction("copy");
    manager.appendToGroup(GEFActionConstants.GROUP_EDIT, action);
    ((UpdateAction) action).update();
    action = m_actionRegistry.getAction(PasteActionContextMenu.ID);
    manager.appendToGroup(GEFActionConstants.GROUP_EDIT, action);
    ((UpdateAction) action).update();
    action = m_actionRegistry.getAction("undo");
    manager.appendToGroup(GEFActionConstants.GROUP_EDIT, action);
    ((UpdateAction) action).update();
    action = m_actionRegistry.getAction("redo");
    manager.appendToGroup(GEFActionConstants.GROUP_EDIT, action);
    ((UpdateAction) action).update();
    action = m_actionRegistry.getAction("delete");
    manager.appendToGroup(GEFActionConstants.GROUP_EDIT, action);
    ((UpdateAction) action).update();
    // Add (some) available actions from the registry to the context menu
    // manager
    // openDialog
    action = m_actionRegistry.getAction(OpenDialogAction.ID);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    // execute
    action = m_actionRegistry.getAction(ExecuteAction.ID);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    // execute and open first view
    action = m_actionRegistry.getAction(ExecuteAndOpenViewAction.ID);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    // cancel execution
    action = m_actionRegistry.getAction(CancelAction.ID);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    // show some menu items on LoopEndNodes only
    List parts = m_viewer.getSelectedEditParts();
    if (parts.size() == 1) {
        EditPart p = (EditPart) parts.get(0);
        if (p instanceof NodeContainerEditPart) {
            NodeContainerUI container = (NodeContainerUI) ((NodeContainerEditPart) p).getModel();
            if (container instanceof SingleNodeContainerUI) {
                SingleNodeContainerUI snc = (SingleNodeContainerUI) container;
                Wrapper.unwrapOptional(snc, SingleNodeContainer.class).ifPresent(sncImpl -> {
                    if (sncImpl.isModelCompatibleTo(LoopEndNode.class)) {
                        // pause loop execution
                        IAction loopAction;
                        loopAction = m_actionRegistry.getAction(PauseLoopExecutionAction.ID);
                        manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, loopAction);
                        ((AbstractNodeAction) loopAction).update();
                        // step loop execution
                        loopAction = m_actionRegistry.getAction(StepLoopAction.ID);
                        manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, loopAction);
                        ((AbstractNodeAction) loopAction).update();
                        // resume loop execution
                        loopAction = m_actionRegistry.getAction(ResumeLoopAction.ID);
                        manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, loopAction);
                        ((AbstractNodeAction) loopAction).update();
                    }
                });
            }
        }
    }
    // reset
    action = m_actionRegistry.getAction(ResetAction.ID);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    // set name and description
    action = m_actionRegistry.getAction(SetNodeDescriptionAction.ID);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    // add workflow annotation
    action = m_actionRegistry.getAction(AddAnnotationAction.ID);
    AddAnnotationAction aaa = (AddAnnotationAction) action;
    aaa.setLocation(m_lastLocation.x, m_lastLocation.y);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    // collapse metanodes
    action = m_actionRegistry.getAction(CollapseMetaNodeAction.ID);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    action = m_actionRegistry.getAction(EncapsulateSubNodeAction.ID);
    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
    ((AbstractNodeAction) action).update();
    // insert "select loop" if loop nodes are selected
    boolean addSelectLoop = true;
    for (Object p : parts) {
        if (!(p instanceof NodeContainerEditPart)) {
            addSelectLoop = false;
            break;
        }
        NodeContainerUI nc = ((NodeContainerEditPart) p).getNodeContainer();
        if (!(nc instanceof SingleNodeContainerUI)) {
            addSelectLoop = false;
            break;
        }
        if (!((SingleNodeContainerUI) nc).isMemberOfScope()) {
            addSelectLoop = false;
            break;
        }
    }
    if (addSelectLoop) {
        action = m_actionRegistry.getAction(SelectLoopAction.ID);
        manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
        ((AbstractNodeAction) action).update();
    }
    IMenuManager metanodeMenuMgr = null;
    IMenuManager subnodeMenuMgr = null;
    IMenuManager subnodeViewMgr = null;
    // depending on the current selection: add the actions for the port
    // views and the node views
    // also check whether this node part is a meta-node
    // if so offer the "edit meta-node" option
    // all these feature are only offered if exactly 1 part is selected
    parts = m_viewer.getSelectedEditParts();
    // by now, we only support one part...
    if (parts.size() == 1) {
        EditPart p = (EditPart) parts.get(0);
        if (p instanceof WorkflowInPortBarEditPart) {
            WorkflowInPortBarEditPart root = (WorkflowInPortBarEditPart) p;
            manager.add(new Separator("outPortViews"));
            for (Object o : p.getChildren()) {
                EditPart child = (EditPart) o;
                if (child instanceof WorkflowInPortEditPart && ((WorkflowInPortEditPart) child).isSelected()) {
                    final WorkflowManager wm = Wrapper.unwrapWFM(((WorkflowPortBar) root.getModel()).getWorkflowManager());
                    action = new OpenWorkflowPortViewAction(wm, ((WorkflowInPortEditPart) child).getIndex(), wm.getNrInPorts());
                    manager.appendToGroup("outPortViews", action);
                    ((WorkflowInPortEditPart) child).setSelected(false);
                }
            }
        }
        if (p instanceof NodeContainerEditPart) {
            NodeContainerUI container = null;
            container = (NodeContainerUI) ((NodeContainerEditPart) p).getModel();
            if (!(container instanceof WorkflowManagerUI)) {
                action = m_actionRegistry.getAction(ToggleFlowVarPortsAction.ID);
                manager.appendToGroup(FLOW_VAR_PORT_GRP, action);
                ((AbstractNodeAction) action).update();
            }
            // add for node views option if applicable
            int numNodeViews = container.getNrViews();
            for (int i = 0; i < numNodeViews; i++) {
                action = new OpenViewAction(unwrapNC(container), i);
                manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
            }
            // add interactive view options
            if (container.hasInteractiveView()) {
                action = new OpenInteractiveViewAction(unwrapNC(container));
                manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
            } else {
                // TODO for subnodes move to submenu?
                if (wraps(container, NativeNodeContainer.class)) {
                    InteractiveWebViewsResult interactiveWebViewsResult = unwrapNC(container).getInteractiveWebViews();
                    for (int i = 0; i < interactiveWebViewsResult.size(); i++) {
                        action = new OpenInteractiveWebViewAction(unwrapNC(container), interactiveWebViewsResult.get(i));
                        manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
                    }
                }
            }
            if (container instanceof WorkflowManagerUI) {
                metanodeMenuMgr = getMetaNodeMenuManager(metanodeMenuMgr, manager);
                // OPEN META NODE
                action = new OpenSubworkflowEditorAction((NodeContainerEditPart) p);
                metanodeMenuMgr.appendToGroup(GROUP_METANODE, action);
                // EXPAND META NODE
                action = m_actionRegistry.getAction(ExpandMetaNodeAction.ID);
                metanodeMenuMgr.appendToGroup(GROUP_METANODE, action);
                ((AbstractNodeAction) action).update();
                // RECONFIGURE META NODE
                if (parts.size() == 1) {
                    action = m_actionRegistry.getAction(MetaNodeReconfigureAction.ID);
                    metanodeMenuMgr.appendToGroup(GROUP_METANODE, action);
                    ((AbstractNodeAction) action).update();
                }
                // WRAP
                action = m_actionRegistry.getAction(ConvertMetaNodeToSubNodeAction.ID);
                metanodeMenuMgr.appendToGroup(GROUP_METANODE, action);
                ((AbstractNodeAction) action).update();
            }
            // SUBNODE
            if (container instanceof SubNodeContainerUI) {
                subnodeMenuMgr = getSubNodeMenuManager(subnodeMenuMgr, manager);
                // OPEN SUBNODE
                action = new OpenSubNodeEditorAction((NodeContainerEditPart) p);
                subnodeMenuMgr.appendToGroup(GROUP_SUBNODE, action);
                // EXPAND SUBNODE
                action = m_actionRegistry.getAction(ExpandSubNodeAction.ID);
                subnodeMenuMgr.appendToGroup(GROUP_SUBNODE, action);
                ((AbstractNodeAction) action).update();
                // RECONFIGURE SUBNODE
                action = m_actionRegistry.getAction(SubNodeReconfigureAction.ID);
                subnodeMenuMgr.appendToGroup(GROUP_SUBNODE, action);
                ((AbstractNodeAction) action).update();
                // UNWRAP
                action = m_actionRegistry.getAction(ConvertSubNodeToMetaNodeAction.ID);
                subnodeMenuMgr.appendToGroup(GROUP_SUBNODE, action);
                ((AbstractNodeAction) action).update();
                if (wraps(container, SubNodeContainer.class)) {
                    InteractiveWebViewsResult interactiveWebViewsResult = unwrapNC(container).getInteractiveWebViews();
                    if (interactiveWebViewsResult.size() > 0) {
                        subnodeViewMgr = getSingleSubNodeViewsMenuManager(subnodeViewMgr, subnodeMenuMgr);
                        for (int i = 0; i < interactiveWebViewsResult.size(); i++) {
                            action = new OpenInteractiveWebViewAction(unwrapNC(container), interactiveWebViewsResult.get(i));
                            subnodeViewMgr.appendToGroup(GROUP_SUBNODE_VIEWS, action);
                        }
                    }
                    action = new OpenSubnodeWebViewAction(Wrapper.unwrap(container, SubNodeContainer.class));
                    manager.appendToGroup(IWorkbenchActionConstants.GROUP_APP, action);
                }
            }
            // add port views
            manager.add(new Separator("outPortViews"));
            int numOutPorts = container.getNrOutPorts();
            for (int i = 0; i < numOutPorts; i++) {
                if (i == 0 && !(container instanceof WorkflowManagerUI)) {
                    // skip the implicit flow var ports on "normal" nodes
                    continue;
                }
                if (wraps(container, NodeContainer.class)) {
                    action = new OpenPortViewAction(unwrapNC(container), i, numOutPorts);
                    manager.appendToGroup("outPortViews", action);
                }
            }
        }
    }
    boolean addMetaNodeActions = false;
    boolean addSubNodeActions = false;
    for (Object p : parts) {
        if (p instanceof NodeContainerEditPart) {
            NodeContainerUI model = ((NodeContainerEditPart) p).getNodeContainer();
            if (model instanceof WorkflowManagerUI) {
                addMetaNodeActions = true;
            } else if (model instanceof SubNodeContainerUI) {
                addSubNodeActions = true;
            }
        }
    }
    if (addMetaNodeActions) {
        metanodeMenuMgr = getMetaNodeMenuManager(metanodeMenuMgr, manager);
        // SAVE AS TEMPLATE
        action = m_actionRegistry.getAction(SaveAsMetaNodeTemplateAction.ID);
        metanodeMenuMgr.appendToGroup(GROUP_METANODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // CHECK UPDATE
        action = m_actionRegistry.getAction(CheckUpdateMetaNodeLinkAction.ID);
        metanodeMenuMgr.appendToGroup(GROUP_METANODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // DISCONNECT
        action = m_actionRegistry.getAction(DisconnectMetaNodeLinkAction.ID);
        metanodeMenuMgr.appendToGroup(GROUP_METANODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // LINK TYPE
        action = m_actionRegistry.getAction(ChangeMetaNodeLinkAction.ID);
        metanodeMenuMgr.appendToGroup(GROUP_METANODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // REVEAL TEMPLATE
        action = m_actionRegistry.getAction(RevealMetaNodeTemplateAction.ID);
        metanodeMenuMgr.appendToGroup(GROUP_METANODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // LOCK
        if (Boolean.getBoolean(KNIMEConstants.PROPERTY_SHOW_METANODE_LOCK_ACTION)) {
            action = m_actionRegistry.getAction(LockMetaNodeAction.ID);
            metanodeMenuMgr.appendToGroup(GROUP_METANODE, action);
            ((AbstractNodeAction) action).update();
        }
    }
    if (addSubNodeActions) {
        subnodeMenuMgr = getSubNodeMenuManager(subnodeMenuMgr, manager);
        // SAVE AS TEMPLATE (SUBNODE)
        action = m_actionRegistry.getAction(SaveAsSubNodeTemplateAction.ID);
        subnodeMenuMgr.appendToGroup(GROUP_SUBNODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // CHECK UPDATE (SUBNODE)
        action = m_actionRegistry.getAction(CheckUpdateMetaNodeLinkAction.ID);
        subnodeMenuMgr.appendToGroup(GROUP_SUBNODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // DISCONNECT LINK (SUBNODE)
        action = m_actionRegistry.getAction(DisconnectSubNodeLinkAction.ID);
        subnodeMenuMgr.appendToGroup(GROUP_SUBNODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // CHANGE LINK (SUBNODE)
        action = m_actionRegistry.getAction(ChangeSubNodeLinkAction.ID);
        subnodeMenuMgr.appendToGroup(GROUP_SUBNODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // REVEAL TEMPLATE (SUBNODE)
        action = m_actionRegistry.getAction(RevealSubNodeTemplateAction.ID);
        subnodeMenuMgr.appendToGroup(GROUP_SUBNODE_LINKS, action);
        ((AbstractNodeAction) action).update();
        // LOCK SUBNODE
        if (Boolean.getBoolean(KNIMEConstants.PROPERTY_SHOW_METANODE_LOCK_ACTION)) {
            action = m_actionRegistry.getAction(LockSubNodeAction.ID);
            subnodeMenuMgr.appendToGroup(GROUP_SUBNODE, action);
            ((AbstractNodeAction) action).update();
        }
    }
    manager.updateAll(true);
}

Example 38 with NodeContainerUI

use of org.knime.core.ui.node.workflow.NodeContainerUI in project knime-core by knime.

the class MetaNodeReconfigureAction method internalCalculateEnabled.

/**
 * @return true, if underlying model instance of <code>WorkflowManager</code>, otherwise false
 */
@Override
protected boolean internalCalculateEnabled() {
    NodeContainerEditPart[] nodes = getSelectedParts(NodeContainerEditPart.class);
    if (nodes.length != 1) {
        return false;
    }
    NodeContainerUI nc = nodes[0].getNodeContainer();
    if (nc instanceof WorkflowManagerUI) {
        WorkflowManagerUI metaNode = (WorkflowManagerUI) nc;
        return !metaNode.isWriteProtected();
    }
    return false;
}

Example 39 with NodeContainerUI

use of org.knime.core.ui.node.workflow.NodeContainerUI in project knime-core by knime.

the class DefaultOpenViewAction method internalCalculateEnabled.

/**
 * @return true if at least one selected node is executing or queued
 * @see org.eclipse.gef.ui.actions.WorkbenchPartAction#calculateEnabled()
 */
@Override
protected boolean internalCalculateEnabled() {
    NodeContainerEditPart[] parts = getSelectedParts(NodeContainerEditPart.class);
    // enable if we have at least one executing or queued node in our
    // selection
    boolean atLeastOneNodeIsExecuted = false;
    for (int i = 0; i < parts.length; i++) {
        NodeContainerUI nc = parts[i].getNodeContainer();
        boolean hasView = nc.getNrViews() > 0;
        if (Wrapper.wraps(nc, NodeContainer.class)) {
            hasView |= nc.hasInteractiveView() || unwrapNC(nc).getInteractiveWebViews().size() > 0;
            hasView |= OpenSubnodeWebViewAction.hasContainerView(unwrapNC(nc));
            atLeastOneNodeIsExecuted |= nc.getNodeContainerState().isExecuted() && hasView;
        }
    }
    return atLeastOneNodeIsExecuted;
}

Example 40 with NodeContainerUI

use of org.knime.core.ui.node.workflow.NodeContainerUI in project knime-core by knime.

the class MoveNodeAbstractAction method createCompoundCommand.

/**
 * @param nodeParts selected nodes and connections
 * @return compound command of all move commands or null if no edit part is selected
 */
public CompoundCommand createCompoundCommand(final NodeContainerEditPart[] nodeParts) {
    List<EditPart> selParts = getMoveableSelectedEditParts();
    if (selParts.size() < 1) {
        return null;
    }
    // should be initialized from the pref page
    // (0, 1) moves down, (-1, 0) moves left
    Point offset = getMoveDirection();
    int signX = (int) Math.signum(offset.x);
    int signY = (int) Math.signum(offset.y);
    CompoundCommand compoundCommand = new CompoundCommand();
    if (getEditor().getEditorSnapToGrid()) {
        // adjust offset to grid size (note: arguments must be not-negative numbers)
        offset = new Point(signX * getEditor().getEditorGridXOffset(signX * offset.x), signY * getEditor().getEditorGridYOffset(signY * offset.y));
        if (selParts.size() == 1) {
            // with one element we move the element onto the grid if it is off
            Point refLoc = null;
            if (selParts.get(0) instanceof NodeContainerEditPart) {
                NodeContainerEditPart node = (NodeContainerEditPart) selParts.get(0);
                NodeContainerFigure figure = (NodeContainerFigure) node.getFigure();
                Point iconOffset = SnapIconToGrid.getGridRefPointOffset(figure);
                refLoc = new Point(figure.getBounds().x, figure.getBounds().y);
                refLoc.translate(iconOffset);
            } else {
                IFigure fig = ((AbstractWorkflowEditPart) selParts.get(0)).getFigure();
                refLoc = new Point(fig.getBounds().x, fig.getBounds().y);
            }
            Point gridLoc = new Point(0, 0);
            Point prevGridLoc = getEditor().getPrevGridLocation(refLoc);
            Point nextGridLoc = getEditor().getNextGridLocation(refLoc);
            boolean toGrid = false;
            if (signX < 0) {
                gridLoc.x = prevGridLoc.x;
                toGrid = (gridLoc.x != refLoc.x);
            }
            if (signX > 0) {
                gridLoc.x = nextGridLoc.x;
                toGrid = (gridLoc.x != refLoc.x);
            }
            if (signY < 0) {
                gridLoc.y = prevGridLoc.y;
                toGrid = (gridLoc.y != refLoc.y);
            }
            if (signY > 0) {
                gridLoc.y = nextGridLoc.y;
                toGrid = (gridLoc.y != refLoc.y);
            }
            if (toGrid) {
                offset = new Point(Math.abs(gridLoc.x - refLoc.x) * signX, Math.abs(gridLoc.y - refLoc.y) * signY);
            }
        }
    }
    int noNodes = 0;
    // apply the offset to all selected elements
    for (EditPart epart : selParts) {
        // apply to selected nodes
        if (epart instanceof NodeContainerEditPart) {
            NodeContainerEditPart node = (NodeContainerEditPart) epart;
            noNodes++;
            NodeContainerUI nc = node.getNodeContainer();
            NodeContainerFigure figure = (NodeContainerFigure) node.getFigure();
            Rectangle bounds = figure.getBounds().getCopy();
            bounds.translate(offset);
            ChangeNodeBoundsCommand cmd = new ChangeNodeBoundsCommand(Wrapper.unwrapNC(nc), figure, bounds);
            compoundCommand.add(cmd);
        }
        // apply to all selected workflow annotations
        if ((epart instanceof AnnotationEditPart) && !(epart instanceof NodeAnnotationEditPart)) {
            AnnotationEditPart anno = (AnnotationEditPart) epart;
            Rectangle bounds = anno.getFigure().getBounds().getCopy();
            bounds.translate(offset);
            ChangeAnnotationBoundsCommand cmd = new ChangeAnnotationBoundsCommand(getManager(), anno, bounds);
            compoundCommand.add(cmd);
        }
    }
    if (noNodes > 1) {
        // if multiple nodes are selected/moved we need to move fully contained connections as well
        ConnectionContainerEditPart[] conns = WorkflowSelectionDragEditPartsTracker.getEmbracedConnections(selParts);
        for (ConnectionContainerEditPart conn : conns) {
            ChangeBendPointLocationCommand connCmd = new ChangeBendPointLocationCommand(conn, offset.getCopy(), null);
            compoundCommand.add(connCmd);
        }
    }
    return compoundCommand;
}