Examples with IGraphicalNode org.talend.core.ui.process.IGraphicalNode used on opensource projects

Example 1 with IGraphicalNode

use of org.talend.core.ui.process.IGraphicalNode in project tdi-studio-se by Talend.

the class NodesPasteCommand method findLocationForNodeInProcess.

@SuppressWarnings("unchecked")
private Point findLocationForNodeInProcess(final Point location, Dimension size, NodePart copiedNodePart) {
    Rectangle copiedRect = new Rectangle(location, size);
    Point newLocation = new Point(location);
    for (IGraphicalNode node : (List<IGraphicalNode>) process.getGraphicalNodes()) {
        Rectangle currentRect = new Rectangle(node.getLocation(), node.getSize());
        if (currentRect.intersects(copiedRect)) {
            newLocation.x += size.width;
            newLocation.y += size.height;
            return findLocationForNodeInProcess(newLocation, size, copiedNodePart);
        }
    }
    return newLocation;
}

Example 2 with IGraphicalNode

use of org.talend.core.ui.process.IGraphicalNode in project tdi-studio-se by Talend.

the class NodesMoveCommond method findLocationForNodeInProcess.

@SuppressWarnings("unchecked")
private Point findLocationForNodeInProcess(final Point location, Dimension size) {
    Rectangle copiedRect = new Rectangle(location, size);
    Point newLocation = new Point(location);
    for (IGraphicalNode node : (List<IGraphicalNode>) process.getGraphicalNodes()) {
        Rectangle currentRect = new Rectangle((Point) node.getLocation(), (Dimension) node.getSize());
        if (currentRect.intersects(copiedRect)) {
            newLocation.x += size.width;
            newLocation.y += size.height;
            return findLocationForNodeInProcess(newLocation, size);
        }
    }
    return newLocation;
}

Example 3 with IGraphicalNode

use of org.talend.core.ui.process.IGraphicalNode in project tdi-studio-se by Talend.

the class NodesPasteCommand method findLocationForNodeInContainerList.

private Point findLocationForNodeInContainerList(final Point location, Dimension size, int index, int firstIndex, NodePart copiedNodePart) {
    Rectangle copiedRect = new Rectangle(location, size);
    Point newLocation = new Point(location);
    if (getCursorLocation() == null) {
        for (NodeContainer nodeContainer : nodeContainerList) {
            IGraphicalNode node = nodeContainer.getNode();
            Rectangle currentRect = new Rectangle(node.getLocation(), node.getSize());
            if (currentRect.intersects(copiedRect)) {
                newLocation.x += size.width;
                newLocation.y += size.height;
                // newLocation = computeTheDistance(index, firstIndex, newLocation);
                Point tmpPoint = findLocationForNodeInProcess(newLocation, size, copiedNodePart);
                return findLocationForNodeInContainerList(tmpPoint, size, index, firstIndex, copiedNodePart);
            }
        }
        return newLocation;
    }
    if (!nodePart.equals(copiedNodePart)) {
        newLocation = computeTheDistance(index, firstIndex, newLocation);
    }
    return newLocation;
}

Example 4 with IGraphicalNode

use of org.talend.core.ui.process.IGraphicalNode in project tdi-studio-se by Talend.

the class NodesPasteCommand method createNodeContainerList.

@SuppressWarnings("unchecked")
private void createNodeContainerList() {
    int firstIndex = 0;
    int index = 0;
    nodeContainerList = new ArrayList<NodeContainer>();
    jobletNodeToExpand = new ArrayList<NodeContainer>();
    connections = new ArrayList<IConnection>();
    createdNames = new ArrayList<String>();
    Map<String, String> oldNameTonewNameMap = new HashMap<String, String>();
    Map<String, String> oldMetaToNewMeta = new HashMap<String, String>();
    // see bug 0004882: Subjob title is not copied when copying/pasting subjobs from one job to another
    Map<INode, SubjobContainer> mapping = new HashMap<INode, SubjobContainer>();
    ITestContainerGEFService testContainerService = null;
    Map<SubjobContainer, List<Node>> junitGroup = null;
    if (isJunitCreate()) {
        if (GlobalServiceRegister.getDefault().isServiceRegistered(ITestContainerGEFService.class)) {
            testContainerService = (ITestContainerGEFService) GlobalServiceRegister.getDefault().getService(ITestContainerGEFService.class);
            if (testContainerService != null) {
                junitGroup = testContainerService.caculateJunitGroup(nodeParts);
            }
        }
        if (nodeMap == null) {
            nodeMap = new HashMap<IGraphicalNode, IGraphicalNode>();
        }
    }
    // create the nodes
    for (NodePart copiedNodePart : nodeParts) {
        IGraphicalNode copiedNode = (IGraphicalNode) copiedNodePart.getModel();
        if (!containNodeInProcess(copiedNode)) {
            continue;
        }
        IComponent component = ComponentsFactoryProvider.getInstance().get(copiedNode.getComponent().getName(), process.getComponentsType());
        if (component == null) {
            boolean isJobletInOutComponent = false;
            if (PluginChecker.isJobLetPluginLoaded()) {
                IJobletProviderService service = (IJobletProviderService) GlobalServiceRegister.getDefault().getService(IJobletProviderService.class);
                if (service != null && service.isJobletInOutComponent(copiedNode)) {
                    isJobletInOutComponent = true;
                }
            }
            if (isJobletInOutComponent) {
                component = copiedNode.getComponent();
            } else {
                component = new DummyComponent(copiedNode.getComponent().getName());
            }
        }
        IGraphicalNode pastedNode = new Node(component, process);
        if (nodeMap != null) {
            nodeMap.put(copiedNode, pastedNode);
        }
        if (isJobletRefactor() || isJunitCreate()) {
            // keep original for joblet refactor.
            process.removeUniqueNodeName(pastedNode.getUniqueName());
            pastedNode.setPropertyValue(EParameterName.UNIQUE_NAME.getName(), copiedNode.getUniqueName());
            process.addUniqueNodeName(copiedNode.getUniqueName());
        }
        // for bug 0004882: Subjob title is not copied when copying/pasting subjobs from one job to another
        makeCopyNodeAndSubjobMapping(copiedNode, pastedNode, mapping);
        Point location = null;
        if (getCursorLocation() == null) {
            location = copiedNode.getLocation();
        } else {
            location = getCursorLocation();
            index = nodeParts.indexOf(copiedNodePart);
        }
        if (process.isGridEnabled()) {
            // replace the component to set it on the grid if it's enabled
            int tempVar = location.x / TalendEditor.GRID_SIZE;
            location.x = tempVar * TalendEditor.GRID_SIZE;
            tempVar = location.y / TalendEditor.GRID_SIZE;
            location.y = tempVar * TalendEditor.GRID_SIZE;
        }
        pastedNode.setLocation(findLocationForNode(location, copiedNode.getSize(), index, firstIndex, copiedNodePart));
        pastedNode.setSize(copiedNode.getSize());
        INodeConnector mainConnector;
        if (pastedNode.isELTComponent()) {
            mainConnector = pastedNode.getConnectorFromType(EConnectionType.TABLE);
        } else {
            mainConnector = pastedNode.getConnectorFromType(EConnectionType.FLOW_MAIN);
        }
        if (!mainConnector.isMultiSchema()) {
            if (copiedNode.getMetadataList().size() != 0) {
                pastedNode.getMetadataList().clear();
                for (IMetadataTable metaTable : copiedNode.getMetadataList()) {
                    IMetadataTable newMetaTable = metaTable.clone();
                    if (metaTable.getTableName().equals(copiedNode.getUniqueName())) {
                        newMetaTable.setTableName(pastedNode.getUniqueName());
                    }
                    for (IMetadataColumn column : metaTable.getListColumns()) {
                        if (column.isCustom()) {
                            IMetadataColumn newColumn = newMetaTable.getColumn(column.getLabel());
                            newColumn.setReadOnly(column.isReadOnly());
                            newColumn.setCustom(column.isCustom());
                        }
                    }
                    pastedNode.getMetadataList().add(newMetaTable);
                }
            }
        } else {
            List<IMetadataTable> copyOfMetadataList = new ArrayList<IMetadataTable>();
            for (IMetadataTable metaTable : copiedNode.getMetadataList()) {
                IMetadataTable newTable = metaTable.clone();
                if (copiedNode.isELTComponent()) {
                    newTable.setTableName(createNewConnectionName(metaTable.getTableName(), IProcess.DEFAULT_TABLE_CONNECTION_NAME));
                } else {
                    if (metaTable.getTableName().equals(copiedNode.getUniqueName())) {
                        newTable.setTableName(createNewConnectionName(pastedNode.getUniqueName(), null));
                    } else {
                        newTable.setTableName(createNewConnectionName(metaTable.getTableName(), null));
                    }
                }
                //$NON-NLS-1$
                oldMetaToNewMeta.put(pastedNode.getUniqueName() + ":" + metaTable.getTableName(), newTable.getTableName());
                for (IMetadataColumn column : metaTable.getListColumns()) {
                    if (column.isCustom()) {
                        IMetadataColumn newColumn = newTable.getColumn(column.getLabel());
                        newColumn.setReadOnly(column.isReadOnly());
                        newColumn.setCustom(column.isCustom());
                    }
                }
                newTable.sortCustomColumns();
                copyOfMetadataList.add(newTable);
            }
            pastedNode.setMetadataList(copyOfMetadataList);
        }
        // TDQ-10039 extract this code from above "else",aslo consider tMatchGroup.
        if (mainConnector.isMultiSchema() || copiedNode.getComponent().getName().startsWith("tMatchGroup")) {
            //$NON-NLS-1$
            IExternalNode externalNode = pastedNode.getExternalNode();
            if (externalNode != null) {
                if (copiedNode.getExternalData() != null) {
                    try {
                        externalNode.setExternalData(copiedNode.getExternalData().clone());
                    } catch (CloneNotSupportedException e) {
                        ExceptionHandler.process(e);
                    }
                    ((Node) pastedNode).setExternalData(externalNode.getExternalData());
                }
                if (copiedNode.getExternalNode().getExternalEmfData() != null) {
                    externalNode.setExternalEmfData(EcoreUtil.copy(copiedNode.getExternalNode().getExternalEmfData()));
                }
                for (IMetadataTable metaTable : copiedNode.getMetadataList()) {
                    String oldName = metaTable.getTableName();
                    //$NON-NLS-1$
                    String newName = oldMetaToNewMeta.get(pastedNode.getUniqueName() + ":" + metaTable.getTableName());
                    externalNode.renameOutputConnection(oldName, newName);
                    CorePlugin.getDefault().getMapperService().renameJoinTable(process, externalNode.getExternalData(), createdNames);
                }
                // when copy a external node, should also copy screeshot
                if (copiedNode.getExternalNode() != null) {
                    ImageDescriptor screenshot = copiedNode.getExternalNode().getScreenshot();
                    if (screenshot != null) {
                        externalNode.setScreenshot(screenshot);
                    }
                }
            }
        }
        ((Node) pastedNode).getNodeLabel().setOffset(new Point(((Node) copiedNode).getNodeLabel().getOffset()));
        oldNameTonewNameMap.put(copiedNode.getUniqueName(), pastedNode.getUniqueName());
        if (copiedNode.getElementParametersWithChildrens() != null) {
            for (ElementParameter param : (List<ElementParameter>) copiedNode.getElementParametersWithChildrens()) {
                if (!EParameterName.UNIQUE_NAME.getName().equals(param.getName())) {
                    IElementParameter elementParameter = pastedNode.getElementParameter(param.getName());
                    if (elementParameter != null) {
                        if (param.getFieldType() == EParameterFieldType.TABLE) {
                            List<Map<String, Object>> tableValues = (List<Map<String, Object>>) param.getValue();
                            ArrayList newValues = new ArrayList();
                            for (Map<String, Object> map : tableValues) {
                                Map<String, Object> newMap = new HashMap<String, Object>();
                                newMap.putAll(map);
                                // rename schemas
                                if (!oldMetaToNewMeta.isEmpty()) {
                                    boolean isSAPBapiInputSchema = //$NON-NLS-1$
                                    "MAPPING_INPUT".equals(param.getName()) && //$NON-NLS-1$
                                    "tSAPBapi".equals(copiedNode.getComponent().getName());
                                    if (EParameterName.SCHEMAS.name().equals(param.getName()) || isSAPBapiInputSchema) {
                                        String newSchemaName = oldMetaToNewMeta.get(pastedNode.getUniqueName() + ":" + map.get(EParameterName.SCHEMA.getName()));
                                        if (newSchemaName != null) {
                                            newMap.put(EParameterName.SCHEMA.getName(), newSchemaName);
                                        }
                                    }
                                }
                                newValues.add(newMap);
                            }
                            // fix for TDI-7988 paste tFixedFlowInput inline table
                            Object[] copiedListItem = param.getListItemsValue();
                            if (copiedListItem != null) {
                                Object[] pasetedListItem = elementParameter.getListItemsValue();
                                if (pasetedListItem == null || pasetedListItem.length != copiedListItem.length) {
                                    elementParameter.setListItemsValue(copiedListItem);
                                    elementParameter.setListItemsDisplayCodeName(param.getListItemsDisplayCodeName());
                                    elementParameter.setListItemsDisplayName(param.getListItemsDisplayName());
                                }
                            }
                            elementParameter.setValue(newValues);
                        } else {
                            if (param.getParentParameter() != null) {
                                String parentName = param.getParentParameter().getName();
                                //$NON-NLS-1$
                                pastedNode.setPropertyValue(parentName + ":" + param.getName(), param.getValue());
                            } else if (param.getName().equals("SOURCE_GENERATED_TDM_STRUCT_PATH") || param.getName().equals("TARGET_GENERATED_TDM_STRUCT_PATH") || param.getName().equals("SOURCE_TDM_STRUCT_INCARNATION") || param.getName().equals("TARGET_TDM_STRUCT_INCARNATION")) {
                                elementParameter.setReadOnly(param.getOriginalityReadOnly());
                                elementParameter.setRepositoryValueUsed(param.isRepositoryValueUsed());
                            } else {
                                pastedNode.setPropertyValue(param.getName(), param.getValue());
                                // See Bug 0005722: the pasted component don't keep the same read-only mode and
                                // didn;t
                                // hide
                                // the password.
                                elementParameter.setReadOnly(param.getOriginalityReadOnly());
                                elementParameter.setRepositoryValueUsed(param.isRepositoryValueUsed());
                            }
                        }
                    }
                }
            }
        }
        List<Node> pastedNodeList = null;
        if (junitGroup != null) {
            pastedNodeList = junitGroup.get(((Node) copiedNode).getNodeContainer().getSubjobContainer());
        }
        NodeContainer nc = ((Process) pastedNode.getProcess()).loadNodeContainer((Node) pastedNode, ((Node) copiedNode).isJunitStart() && isJunitCreate());
        if (pastedNodeList != null) {
            pastedNodeList.remove(copiedNode);
            pastedNodeList.add((Node) pastedNode);
        }
        nodeContainerList.add(nc);
        if (selectedExpandedJoblet != null && selectedExpandedJoblet.contains(copiedNodePart)) {
            jobletNodeToExpand.add(nc);
        }
    }
    ((Process) process).setCopyPasteSubjobMappings(mapping);
    Map<String, String> oldToNewConnVarMap = new HashMap<String, String>();
    // add the connections
    for (NodePart copiedNodePart : nodeParts) {
        INode copiedNode = (INode) copiedNodePart.getModel();
        for (IConnection connection : (List<IConnection>) copiedNode.getOutgoingConnections()) {
            INode pastedTargetNode = null, pastedSourceNode = null;
            String nodeSource = oldNameTonewNameMap.get(copiedNode.getUniqueName());
            for (NodeContainer nodeContainer : nodeContainerList) {
                INode node = nodeContainer.getNode();
                if (node.getUniqueName().equals(nodeSource)) {
                    pastedSourceNode = node;
                }
            }
            INode targetNode = connection.getTarget();
            // test if the target is in the nodes to paste to add the
            // connection
            // if the targeted node is not in the nodes to paste, then the
            // string will be null
            String nodeToConnect = oldNameTonewNameMap.get(targetNode.getUniqueName());
            if (nodeToConnect != null) {
                for (NodeContainer nodeContainer : nodeContainerList) {
                    INode node = nodeContainer.getNode();
                    if (node.getUniqueName().equals(nodeToConnect)) {
                        pastedTargetNode = node;
                    }
                }
            }
            if ((pastedSourceNode != null) && (pastedTargetNode != null)) {
                String newConnectionName;
                String metaTableName;
                if (connection.getLineStyle().hasConnectionCategory(IConnectionCategory.UNIQUE_NAME) && connection.getLineStyle().hasConnectionCategory(IConnectionCategory.FLOW)) {
                    String newNameBuiltIn = oldMetaToNewMeta.get(//$NON-NLS-1$
                    pastedSourceNode.getUniqueName() + ":" + connection.getMetaName());
                    if (newNameBuiltIn == null) {
                        IElementParameter formatParam = pastedSourceNode.getElementParameter(EParameterName.CONNECTION_FORMAT.getName());
                        String baseName = IProcess.DEFAULT_ROW_CONNECTION_NAME;
                        if (formatParam != null) {
                            String value = (String) formatParam.getValue();
                            if (value != null && !"".equals(value)) {
                                //$NON-NLS-1$
                                baseName = value;
                            }
                        }
                        if (process.checkValidConnectionName(connection.getName(), true)) {
                            // keep the name, bug 5086
                            baseName = null;
                        }
                        newConnectionName = createNewConnectionName(connection.getName(), baseName);
                    } else {
                        newConnectionName = newNameBuiltIn;
                    }
                } else {
                    newConnectionName = connection.getName();
                }
                //$NON-NLS-1$
                String meta = oldMetaToNewMeta.get(pastedSourceNode.getUniqueName() + ":" + connection.getMetaName());
                if (meta != null) {
                    if (pastedSourceNode.getConnectorFromType(connection.getLineStyle()).isMultiSchema() && !connection.getLineStyle().equals(EConnectionType.TABLE)) {
                        newConnectionName = meta;
                    }
                    metaTableName = meta;
                } else {
                    if (pastedSourceNode.getConnectorFromType(connection.getLineStyle()).isMultiSchema()) {
                        metaTableName = pastedSourceNode.getMetadataList().get(0).getTableName();
                    } else {
                        // connection.getMetaName();
                        metaTableName = pastedSourceNode.getUniqueName();
                    }
                }
                IConnection pastedConnection;
                if (!pastedTargetNode.isELTComponent()) {
                    pastedConnection = new Connection(pastedSourceNode, pastedTargetNode, connection.getLineStyle(), connection.getConnectorName(), metaTableName, newConnectionName, connection.isMonitorConnection());
                } else {
                    pastedConnection = new Connection(pastedSourceNode, pastedTargetNode, connection.getLineStyle(), connection.getConnectorName(), metaTableName, newConnectionName, metaTableName, connection.isMonitorConnection());
                }
                connections.add(pastedConnection);
                oldNameTonewNameMap.put(connection.getUniqueName(), pastedConnection.getUniqueName());
                // pastedConnection.setActivate(pastedSourceNode.isActivate());
                for (ElementParameter param : (List<ElementParameter>) connection.getElementParameters()) {
                    // pastedConnection.getElementParameter(param.getName())
                    // .setValue(param.getValue());
                    pastedConnection.setPropertyValue(param.getName(), param.getValue());
                }
                // reset unique name param
                IElementParameter uniqueNameParam = pastedConnection.getElementParameter(EParameterName.UNIQUE_NAME.getName());
                String newName = oldNameTonewNameMap.get(connection.getUniqueName());
                if (uniqueNameParam != null && newName != null) {
                    if (!newName.equals(uniqueNameParam.getValue())) {
                        pastedConnection.setPropertyValue(EParameterName.UNIQUE_NAME.getName(), newName);
                    }
                }
                // // keep the label (bug 3778)
                // if (pastedConnection != null) {
                // if (pastedConnection.getSourceNodeConnector().isBuiltIn()
                // && pastedConnection.getLineStyle().hasConnectionCategory(EConnectionType.FLOW)) {
                // pastedConnection.setPropertyValue(EParameterName.LABEL.getName(), connection.getName());
                // } else {
                // pastedConnection.setPropertyValue(EParameterName.LABEL.getName(), newConnectionName);
                // }
                // }
                ((Connection) pastedConnection).getConnectionLabel().setOffset(new Point(((Connection) connection).getConnectionLabel().getOffset()));
                INodeConnector connector = pastedConnection.getSourceNodeConnector();
                connector.setCurLinkNbOutput(connector.getCurLinkNbOutput() + 1);
                connector = pastedConnection.getTargetNodeConnector();
                connector.setCurLinkNbInput(connector.getCurLinkNbInput() + 1);
                IExternalNode externalNode = pastedTargetNode.getExternalNode();
                if (externalNode != null) {
                    externalNode.renameInputConnection(connection.getName(), newConnectionName);
                }
                // (feature 2962)
                if (pastedConnection.getMetadataTable() == null) {
                    continue;
                }
                for (IMetadataColumn column : pastedConnection.getMetadataTable().getListColumns()) {
                    //$NON-NLS-1$
                    String oldConnVar = connection.getName() + "." + column.getLabel();
                    //$NON-NLS-1$
                    String newConnVar = newConnectionName + "." + column.getLabel();
                    // String newConnVar = newConnectionName;
                    if (!oldToNewConnVarMap.containsKey(oldConnVar)) {
                        oldToNewConnVarMap.put(oldConnVar, newConnVar);
                    }
                }
            }
        }
    }
    // rename the connection data for node parameters. (feature 2962)
    for (NodeContainer nodeContainer : nodeContainerList) {
        Node node = nodeContainer.getNode();
        for (String oldConnVar : oldToNewConnVarMap.keySet()) {
            String newConnVar = oldToNewConnVarMap.get(oldConnVar);
            if (newConnVar != null) {
                node.renameData(oldConnVar, newConnVar);
            }
        }
    }
    // check if the new components use the old components name.
    Map<String, Set<String>> usedDataMap = new HashMap<String, Set<String>>();
    for (NodeContainer nodeContainer : nodeContainerList) {
        Node currentNode = nodeContainer.getNode();
        String uniqueName = currentNode.getUniqueName();
        for (String oldName : oldNameTonewNameMap.keySet()) {
            if (!oldName.equals(oldNameTonewNameMap.get(oldName)) && currentNode.useData(oldName)) {
                Set<String> oldNameSet = usedDataMap.get(uniqueName);
                if (oldNameSet == null) {
                    oldNameSet = new HashSet<String>();
                    usedDataMap.put(uniqueName, oldNameSet);
                }
                oldNameSet.add(oldName);
            }
        }
    }
    // check if the new connections use the old components name.
    Map<String, Set<String>> usedDataMapForConnections = new HashMap<String, Set<String>>();
    for (IConnection connection : connections) {
        String uniqueName = connection.getUniqueName();
        for (String oldName : oldNameTonewNameMap.keySet()) {
            if (oldName != null && !oldName.equals(oldNameTonewNameMap.get(oldName)) && UpgradeElementHelper.isUseData(connection, oldName)) {
                Set<String> oldNameSet = usedDataMapForConnections.get(uniqueName);
                if (oldNameSet == null) {
                    oldNameSet = new HashSet<String>();
                    usedDataMapForConnections.put(uniqueName, oldNameSet);
                }
                oldNameSet.add(oldName);
            }
        }
    }
    if (!usedDataMap.isEmpty() || !usedDataMapForConnections.isEmpty()) {
        MessageBox msgBox = new MessageBox(PlatformUI.getWorkbench().getDisplay().getActiveShell(), SWT.YES | SWT.NO | SWT.ICON_WARNING);
        //$NON-NLS-1$
        msgBox.setMessage(Messages.getString("NodesPasteCommand.renameMessages"));
        if (msgBox.open() == SWT.YES) {
            for (NodeContainer nodeContainer : nodeContainerList) {
                Node currentNode = nodeContainer.getNode();
                Set<String> oldNameSet = usedDataMap.get(currentNode.getUniqueName());
                if (oldNameSet != null && !oldNameSet.isEmpty()) {
                    for (String oldName : oldNameSet) {
                        currentNode.renameData(oldName, oldNameTonewNameMap.get(oldName));
                    }
                }
            }
            // Rename connections
            for (IConnection connection : connections) {
                Set<String> oldNameSet = usedDataMapForConnections.get(connection.getUniqueName());
                if (oldNameSet != null && !oldNameSet.isEmpty()) {
                    for (String oldName : oldNameSet) {
                        UpgradeElementHelper.renameData(connection, oldName, oldNameTonewNameMap.get(oldName));
                    }
                }
            }
        }
    }
    if (isJunitCreate()) {
        if (testContainerService != null) {
            testContainerService.setTestNodes(nodeMap, junitGroup, nodeContainerList);
        }
    }
}

Example 5 with IGraphicalNode

use of org.talend.core.ui.process.IGraphicalNode in project tdi-studio-se by Talend.

the class NodesPasteCommand method orderNodeParts.

private void orderNodeParts(List<NodePart> nodeParts) {
    this.nodeParts = new ArrayList<NodePart>();
    Point curLocation;
    NodePart toAdd = null;
    List<NodePart> restToOrder = new ArrayList<NodePart>();
    restToOrder.addAll(nodeParts);
    for (NodePart copiedNodePart : nodeParts) {
        curLocation = null;
        for (NodePart partToOrder : restToOrder) {
            IGraphicalNode copiedNode = (IGraphicalNode) partToOrder.getModel();
            if (curLocation == null) {
                curLocation = copiedNode.getLocation();
                toAdd = partToOrder;
            } else {
                if (curLocation.y >= copiedNode.getLocation().y) {
                    if (curLocation.x >= copiedNode.getLocation().x) {
                        curLocation = copiedNode.getLocation();
                        toAdd = partToOrder;
                    }
                }
            }
        }
        if (toAdd != null) {
            this.nodeParts.add(toAdd);
            restToOrder.remove(toAdd);
        }
    }
}