Examples with DragSource org.eclipse.swt.dnd.DragSource used on opensource projects

Example 36 with DragSource

use of org.eclipse.swt.dnd.DragSource in project webtools.sourceediting by eclipse.

the class ConfigurableContentOutlinePage method createControl.

/**
 * @see ContentOutlinePage#createControl
 */
public void createControl(Composite parent) {
    super.createControl(parent);
    getTreeViewer().setUseHashlookup(true);
    ColumnViewerToolTipSupport.enableFor(getTreeViewer());
    IWorkbenchPage page = getSite().getWorkbenchWindow().getActivePage();
    if (page != null) {
        fEditor = page.getActiveEditor();
    }
    fDragAdapter = new DelegatingDragAdapter();
    fDragSource = new DragSource(getControl(), DND.DROP_COPY | DND.DROP_MOVE);
    fDropAdapter = new DelegatingDropAdapter();
    fDropTarget = new DropTarget(getControl(), DND.DROP_COPY | DND.DROP_MOVE);
    setConfiguration(getConfiguration());
    /*
		 * ContentOutlinePage only implements ISelectionProvider while the
		 * tree viewer implements both ISelectionProvider and
		 * IPostSelectionProvider. Use an ISelectionProvider that listens to
		 * post selection from the tree viewer and forward only post selection
		 * to the selection service.
		 */
    getTreeViewer().addPostSelectionChangedListener(fSelectionProvider.getPostSelectionChangedListener());
    getTreeViewer().addSelectionChangedListener(fSelectionProvider.getSelectionChangedListener());
    if (fDoubleClickProvider == null) {
        fDoubleClickProvider = new DoubleClickProvider();
    }
    getTreeViewer().addDoubleClickListener(fDoubleClickProvider);
    getSite().setSelectionProvider(fSelectionProvider);
}

Example 37 with DragSource

use of org.eclipse.swt.dnd.DragSource in project tdq-studio-se by Talend.

the class ExpressionEditDialog method createTemplatesTablePart.

/**
 * create templates Table Part(only TAB0 use old paramaters, and others use new paramaters)
 *
 * @param sform
 */
public void createTemplatesTablePart(SashForm sform) {
    GridData data;
    final Table templatesTable = new Table(sform, SWT.MULTI | SWT.BORDER | SWT.FULL_SELECTION);
    templatesTable.setLinesVisible(false);
    templatesTable.setHeaderVisible(true);
    data = new GridData(SWT.FILL, SWT.FILL, true, true);
    data.heightHint = 200;
    templatesTable.setLayoutData(data);
    DragSource ds = new DragSource(templatesTable, DND.DROP_MOVE);
    ds.setTransfer(new Transfer[] { TextTransfer.getInstance() });
    ds.addDragListener(new DragSourceAdapter() {

        @Override
        public void dragSetData(DragSourceEvent event) {
            event.data = templatesTable.getSelection()[0].getText();
        }
    });
    TableColumn column = new TableColumn(templatesTable, SWT.NONE);
    column.setText(TEMPLATES_TITLE);
    for (String template : templates) {
        TableItem item = new TableItem(templatesTable, SWT.NONE);
        item.setText(0, template);
    }
    templatesTable.getColumn(0).pack();
}

Example 38 with DragSource

use of org.eclipse.swt.dnd.DragSource in project tdq-studio-se by Talend.

the class ComparisonTableViewerDNDDecorate method installDragListener.

private void installDragListener(final TableViewer targetViewer, int operations) {
    final Table table = targetViewer.getTable();
    final DragSource source = new DragSource(table, operations);
    source.setTransfer(transferTypes);
    final TableItem[] dragSourceItem = new TableItem[1];
    source.addDragListener(new DragSourceListener() {

        public void dragStart(DragSourceEvent event) {
            TableItem[] selection = table.getSelection();
            if (selection.length > 0) {
                event.doit = true;
                dragSourceItem[0] = selection[0];
                dragSelectedElement = ((IStructuredSelection) targetViewer.getSelection()).getFirstElement();
            } else {
                event.doit = false;
            }
        }

        public void dragSetData(DragSourceEvent event) {
            dragSelectedElement = ((IStructuredSelection) targetViewer.getSelection()).getFirstElement();
            event.data = dragSourceItem[0].getText();
        }

        public void dragFinished(DragSourceEvent event) {
        }
    });
}

Example 39 with DragSource

use of org.eclipse.swt.dnd.DragSource in project pentaho-kettle by pentaho.

the class RipDatabaseWizardPage2 method createControl.

public void createControl(Composite parent) {
    shell = parent.getShell();
    int margin = Const.MARGIN;
    // create the composite to hold the widgets
    Composite composite = new Composite(parent, SWT.NONE);
    props.setLook(composite);
    FormLayout compLayout = new FormLayout();
    compLayout.marginHeight = Const.FORM_MARGIN;
    compLayout.marginWidth = Const.FORM_MARGIN;
    composite.setLayout(compLayout);
    // Put it all on the composite!
    // //////////////////////////////////////////////////
    // Top & Bottom regions.
    // //////////////////////////////////////////////////
    Composite top = new Composite(composite, SWT.NONE);
    FormLayout topLayout = new FormLayout();
    topLayout.marginHeight = margin;
    topLayout.marginWidth = margin;
    top.setLayout(topLayout);
    FormData fdTop = new FormData();
    fdTop.left = new FormAttachment(0, 0);
    fdTop.top = new FormAttachment(0, 0);
    fdTop.right = new FormAttachment(100, 0);
    fdTop.bottom = new FormAttachment(100, -50);
    top.setLayoutData(fdTop);
    props.setLook(top);
    Composite bottom = new Composite(composite, SWT.NONE);
    bottom.setLayout(new FormLayout());
    FormData fdBottom = new FormData();
    fdBottom.left = new FormAttachment(0, 0);
    fdBottom.top = new FormAttachment(top, 0);
    fdBottom.right = new FormAttachment(100, 0);
    fdBottom.bottom = new FormAttachment(100, 0);
    bottom.setLayoutData(fdBottom);
    props.setLook(bottom);
    // //////////////////////////////////////////////////
    // Sashform
    // //////////////////////////////////////////////////
    SashForm sashform = new SashForm(top, SWT.HORIZONTAL);
    sashform.setLayout(new FormLayout());
    FormData fdSashform = new FormData();
    fdSashform.left = new FormAttachment(0, 0);
    fdSashform.top = new FormAttachment(0, 0);
    fdSashform.right = new FormAttachment(100, 0);
    fdSashform.bottom = new FormAttachment(100, 0);
    sashform.setLayoutData(fdSashform);
    // ////////////////////////
    // / LEFT
    // ////////////////////////
    Composite leftsplit = new Composite(sashform, SWT.NONE);
    leftsplit.setLayout(new FormLayout());
    FormData fdLeftsplit = new FormData();
    fdLeftsplit.left = new FormAttachment(0, 0);
    fdLeftsplit.top = new FormAttachment(0, 0);
    fdLeftsplit.right = new FormAttachment(100, 0);
    fdLeftsplit.bottom = new FormAttachment(100, 0);
    leftsplit.setLayoutData(fdLeftsplit);
    props.setLook(leftsplit);
    // Source list to the left...
    wlListSource = new Label(leftsplit, SWT.NONE);
    wlListSource.setText("Available items:");
    props.setLook(wlListSource);
    FormData fdlListSource = new FormData();
    fdlListSource.left = new FormAttachment(0, 0);
    fdlListSource.top = new FormAttachment(0, 0);
    wlListSource.setLayoutData(fdlListSource);
    wListSource = new List(leftsplit, SWT.BORDER | SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL);
    props.setLook(wListSource);
    FormData fdListSource = new FormData();
    fdListSource.left = new FormAttachment(0, 0);
    fdListSource.top = new FormAttachment(wlListSource, 0);
    fdListSource.right = new FormAttachment(100, 0);
    fdListSource.bottom = new FormAttachment(100, 0);
    wListSource.setLayoutData(fdListSource);
    // /////////////////////////
    // MIDDLE
    // /////////////////////////
    Composite compmiddle = new Composite(sashform, SWT.NONE);
    compmiddle.setLayout(new FormLayout());
    FormData fdCompMiddle = new FormData();
    fdCompMiddle.left = new FormAttachment(0, 0);
    fdCompMiddle.top = new FormAttachment(0, 0);
    fdCompMiddle.right = new FormAttachment(100, 0);
    fdCompMiddle.bottom = new FormAttachment(100, 0);
    compmiddle.setLayoutData(fdCompMiddle);
    props.setLook(compmiddle);
    wAddOne = new Button(compmiddle, SWT.PUSH);
    wAddOne.setText(" > ");
    wAddOne.setToolTipText("Add the selected items on the left.");
    wAddAll = new Button(compmiddle, SWT.PUSH);
    wAddAll.setText(" >> ");
    wAddAll.setToolTipText("Add all items on the left.");
    wRemoveOne = new Button(compmiddle, SWT.PUSH);
    wRemoveOne.setText(" < ");
    wRemoveOne.setToolTipText("Remove the selected items on the right.");
    wRemoveAll = new Button(compmiddle, SWT.PUSH);
    wRemoveAll.setText(" << ");
    wRemoveAll.setToolTipText("Add all items on the right.");
    FormData fdAddOne = new FormData();
    fdAddOne.left = new FormAttachment(compmiddle, 0, SWT.CENTER);
    fdAddOne.top = new FormAttachment(30, 0);
    wAddOne.setLayoutData(fdAddOne);
    FormData fdAddAll = new FormData();
    fdAddAll.left = new FormAttachment(compmiddle, 0, SWT.CENTER);
    fdAddAll.top = new FormAttachment(wAddOne, margin);
    wAddAll.setLayoutData(fdAddAll);
    FormData fdRemoveAll = new FormData();
    fdRemoveAll.left = new FormAttachment(compmiddle, 0, SWT.CENTER);
    fdRemoveAll.top = new FormAttachment(wAddAll, margin);
    wRemoveAll.setLayoutData(fdRemoveAll);
    FormData fdRemoveOne = new FormData();
    fdRemoveOne.left = new FormAttachment(compmiddle, 0, SWT.CENTER);
    fdRemoveOne.top = new FormAttachment(wRemoveAll, margin);
    wRemoveOne.setLayoutData(fdRemoveOne);
    // ///////////////////////////////
    // RIGHT
    // ///////////////////////////////
    Composite rightsplit = new Composite(sashform, SWT.NONE);
    rightsplit.setLayout(new FormLayout());
    FormData fdRightsplit = new FormData();
    fdRightsplit.left = new FormAttachment(0, 0);
    fdRightsplit.top = new FormAttachment(0, 0);
    fdRightsplit.right = new FormAttachment(100, 0);
    fdRightsplit.bottom = new FormAttachment(100, 0);
    rightsplit.setLayoutData(fdRightsplit);
    props.setLook(rightsplit);
    wlListDest = new Label(rightsplit, SWT.NONE);
    wlListDest.setText("Your selection:");
    props.setLook(wlListDest);
    FormData fdlListDest = new FormData();
    fdlListDest.left = new FormAttachment(0, 0);
    fdlListDest.top = new FormAttachment(0, 0);
    wlListDest.setLayoutData(fdlListDest);
    wListDest = new List(rightsplit, SWT.BORDER | SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL);
    props.setLook(wListDest);
    FormData fdListDest = new FormData();
    fdListDest.left = new FormAttachment(0, 0);
    fdListDest.top = new FormAttachment(wlListDest, 0);
    fdListDest.right = new FormAttachment(100, 0);
    fdListDest.bottom = new FormAttachment(100, 0);
    wListDest.setLayoutData(fdListDest);
    sashform.setWeights(new int[] { 45, 10, 45 });
    // Drag & Drop for steps
    Transfer[] ttypes = new Transfer[] { TextTransfer.getInstance() };
    DragSource ddSource = new DragSource(wListSource, DND.DROP_MOVE | DND.DROP_COPY);
    ddSource.setTransfer(ttypes);
    ddSource.addDragListener(new DragSourceListener() {

        public void dragStart(DragSourceEvent event) {
        }

        public void dragSetData(DragSourceEvent event) {
            String[] ti = wListSource.getSelection();
            String data = new String();
            for (int i = 0; i < ti.length; i++) {
                data += ti[i] + Const.CR;
            }
            event.data = data;
        }

        public void dragFinished(DragSourceEvent event) {
        }
    });
    DropTarget ddTarget = new DropTarget(wListDest, DND.DROP_MOVE | DND.DROP_COPY);
    ddTarget.setTransfer(ttypes);
    ddTarget.addDropListener(new DropTargetListener() {

        public void dragEnter(DropTargetEvent event) {
        }

        public void dragLeave(DropTargetEvent event) {
        }

        public void dragOperationChanged(DropTargetEvent event) {
        }

        public void dragOver(DropTargetEvent event) {
        }

        public void drop(DropTargetEvent event) {
            if (event.data == null) {
                // no data to copy, indicate failure in event.detail
                event.detail = DND.DROP_NONE;
                return;
            }
            StringTokenizer strtok = new StringTokenizer((String) event.data, Const.CR);
            while (strtok.hasMoreTokens()) {
                String source = strtok.nextToken();
                addToDestination(source);
            }
        }

        public void dropAccept(DropTargetEvent event) {
        }
    });
    wListSource.addKeyListener(new KeyAdapter() {

        public void keyPressed(KeyEvent e) {
            if (e.character == SWT.CR) {
                addToSelection(wListSource.getSelection());
            }
        }
    });
    wListDest.addKeyListener(new KeyAdapter() {

        public void keyPressed(KeyEvent e) {
            if (e.character == SWT.CR) {
                delFromSelection(wListDest.getSelection());
            }
        }
    });
    // Double click adds to destination.
    wListSource.addSelectionListener(new SelectionAdapter() {

        public void widgetDefaultSelected(SelectionEvent e) {
            addToSelection(wListSource.getSelection());
        }
    });
    // Double click adds to source
    wListDest.addSelectionListener(new SelectionAdapter() {

        public void widgetDefaultSelected(SelectionEvent e) {
            String[] sel = wListDest.getSelection();
            delFromSelection(sel);
        }
    });
    wAddOne.addSelectionListener(new SelectionAdapter() {

        public void widgetSelected(SelectionEvent e) {
            addToSelection(wListSource.getSelection());
        }
    });
    wRemoveOne.addSelectionListener(new SelectionAdapter() {

        public void widgetSelected(SelectionEvent e) {
            delFromSelection(wListDest.getSelection());
        }
    });
    wAddAll.addSelectionListener(new SelectionAdapter() {

        public void widgetSelected(SelectionEvent e) {
            addAllToSelection();
        }
    });
    wRemoveAll.addSelectionListener(new SelectionAdapter() {

        public void widgetSelected(SelectionEvent e) {
            removeAllFromSelection();
        }
    });
    // set the composite as the control for this page
    setControl(composite);
}

Example 40 with DragSource

use of org.eclipse.swt.dnd.DragSource in project pentaho-kettle by pentaho.

the class UserDefinedJavaClassDialog method open.

public String open() {
    Shell parent = getParent();
    Display display = parent.getDisplay();
    shell = new Shell(parent, SWT.DIALOG_TRIM | SWT.RESIZE | SWT.MAX | SWT.MIN);
    props.setLook(shell);
    setShellImage(shell, input);
    lsMod = new ModifyListener() {

        public void modifyText(ModifyEvent e) {
            input.setChanged();
        }
    };
    changed = input.hasChanged();
    FormLayout formLayout = new FormLayout();
    formLayout.marginWidth = Const.FORM_MARGIN;
    formLayout.marginHeight = Const.FORM_MARGIN;
    shell.setLayout(formLayout);
    shell.setText(BaseMessages.getString(PKG, "UserDefinedJavaClassDialog.Shell.Title"));
    middle = props.getMiddlePct();
    margin = Const.MARGIN;
    // Filename line
    wlStepname = new Label(shell, SWT.RIGHT);
    wlStepname.setText(BaseMessages.getString(PKG, "UserDefinedJavaClassDialog.Stepname.Label"));
    props.setLook(wlStepname);
    fdlStepname = new FormData();
    fdlStepname.left = new FormAttachment(0, 0);
    fdlStepname.right = new FormAttachment(middle, -margin);
    fdlStepname.top = new FormAttachment(0, margin);
    wlStepname.setLayoutData(fdlStepname);
    wStepname = new Text(shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER);
    wStepname.setText(stepname);
    props.setLook(wStepname);
    wStepname.addModifyListener(lsMod);
    fdStepname = new FormData();
    fdStepname.left = new FormAttachment(middle, 0);
    fdStepname.top = new FormAttachment(0, margin);
    fdStepname.right = new FormAttachment(100, 0);
    wStepname.setLayoutData(fdStepname);
    wSash = new SashForm(shell, SWT.VERTICAL);
    // Top sash form
    // 
    Composite wTop = new Composite(wSash, SWT.NONE);
    props.setLook(wTop);
    FormLayout topLayout = new FormLayout();
    topLayout.marginWidth = Const.FORM_MARGIN;
    topLayout.marginHeight = Const.FORM_MARGIN;
    wTop.setLayout(topLayout);
    // Script line
    Label wlScriptFunctions = new Label(wTop, SWT.NONE);
    wlScriptFunctions.setText(BaseMessages.getString(PKG, "UserDefinedJavaClassDialog.ClassesAndSnippits.Label"));
    props.setLook(wlScriptFunctions);
    FormData fdlScriptFunctions = new FormData();
    fdlScriptFunctions.left = new FormAttachment(0, 0);
    fdlScriptFunctions.top = new FormAttachment(0, 0);
    wlScriptFunctions.setLayoutData(fdlScriptFunctions);
    // Tree View Test
    wTree = new Tree(wTop, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
    props.setLook(wTree);
    FormData fdlTree = new FormData();
    fdlTree.left = new FormAttachment(0, 0);
    fdlTree.top = new FormAttachment(wlScriptFunctions, margin);
    fdlTree.right = new FormAttachment(20, 0);
    fdlTree.bottom = new FormAttachment(100, -margin);
    wTree.setLayoutData(fdlTree);
    // Script line
    Label wlScript = new Label(wTop, SWT.NONE);
    wlScript.setText(BaseMessages.getString(PKG, "UserDefinedJavaClassDialog.Class.Label"));
    props.setLook(wlScript);
    FormData fdlScript = new FormData();
    fdlScript.left = new FormAttachment(wTree, margin);
    fdlScript.top = new FormAttachment(0, 0);
    wlScript.setLayoutData(fdlScript);
    folder = new CTabFolder(wTop, SWT.BORDER | SWT.RESIZE);
    folder.setSimple(false);
    folder.setUnselectedImageVisible(true);
    folder.setUnselectedCloseVisible(true);
    FormData fdScript = new FormData();
    fdScript.left = new FormAttachment(wTree, margin);
    fdScript.top = new FormAttachment(wlScript, margin);
    fdScript.right = new FormAttachment(100, -5);
    fdScript.bottom = new FormAttachment(100, -50);
    folder.setLayoutData(fdScript);
    wlPosition = new Label(wTop, SWT.NONE);
    wlPosition.setText(BaseMessages.getString(PKG, "UserDefinedJavaClassDialog.Position.Label"));
    props.setLook(wlPosition);
    FormData fdlPosition = new FormData();
    fdlPosition.left = new FormAttachment(wTree, margin);
    fdlPosition.right = new FormAttachment(30, 0);
    fdlPosition.top = new FormAttachment(folder, margin);
    wlPosition.setLayoutData(fdlPosition);
    wlHelpLabel = new Text(wTop, SWT.V_SCROLL | SWT.LEFT);
    wlHelpLabel.setEditable(false);
    wlHelpLabel.setText("Hallo");
    props.setLook(wlHelpLabel);
    FormData fdHelpLabel = new FormData();
    fdHelpLabel.left = new FormAttachment(wlPosition, margin);
    fdHelpLabel.top = new FormAttachment(folder, margin);
    fdHelpLabel.right = new FormAttachment(100, -5);
    fdHelpLabel.bottom = new FormAttachment(100, 0);
    wlHelpLabel.setLayoutData(fdHelpLabel);
    wlHelpLabel.setVisible(false);
    FormData fdTop = new FormData();
    fdTop.left = new FormAttachment(0, 0);
    fdTop.top = new FormAttachment(0, 0);
    fdTop.right = new FormAttachment(100, 0);
    fdTop.bottom = new FormAttachment(100, 0);
    wTop.setLayoutData(fdTop);
    // 
    // Add a tab folder for the parameters and various input and output
    // streams
    // 
    wTabFolder = new CTabFolder(wSash, SWT.BORDER);
    props.setLook(wTabFolder, Props.WIDGET_STYLE_TAB);
    wTabFolder.setSimple(false);
    wTabFolder.setUnselectedCloseVisible(false);
    FormData fdTabFolder = new FormData();
    fdTabFolder.left = new FormAttachment(0, 0);
    fdTabFolder.right = new FormAttachment(100, 0);
    fdTabFolder.top = new FormAttachment(0, 0);
    fdTabFolder.bottom = new FormAttachment(100, -75);
    wTabFolder.setLayoutData(fdTabFolder);
    // The Fields tab...
    // 
    addFieldsTab();
    // The parameters
    // 
    addParametersTab();
    prevStepNames = transMeta.getPrevStepNames(stepMeta);
    nextStepNames = transMeta.getNextStepNames(stepMeta);
    // OK, add another tab for the input settings...
    // 
    addInfoTab();
    addTargetTab();
    // Select the fields tab...
    // 
    wTabFolder.setSelection(fieldsTab);
    FormData fdSash = new FormData();
    fdSash.left = new FormAttachment(0, 0);
    fdSash.top = new FormAttachment(wStepname, 0);
    fdSash.right = new FormAttachment(100, 0);
    fdSash.bottom = new FormAttachment(100, -50);
    wSash.setLayoutData(fdSash);
    wSash.setWeights(new int[] { 75, 25 });
    wOK = new Button(shell, SWT.PUSH);
    wOK.setText(BaseMessages.getString(PKG, "System.Button.OK"));
    wTest = new Button(shell, SWT.PUSH);
    wTest.setText(BaseMessages.getString(PKG, "UserDefinedJavaClassDialog.TestClass.Button"));
    // wCreatePlugin = new Button(shell, SWT.PUSH);
    // wCreatePlugin.setText("Create Plug-in");
    wCancel = new Button(shell, SWT.PUSH);
    wCancel.setText(BaseMessages.getString(PKG, "System.Button.Cancel"));
    setButtonPositions(new Button[] { wOK, wCancel, wTest /* , wCreatePlugin */
    }, margin, null);
    lsCancel = new Listener() {

        public void handleEvent(Event e) {
            cancel();
        }
    };
    lsTest = new Listener() {

        public void handleEvent(Event e) {
            test();
        }
    };
    lsOK = new Listener() {

        public void handleEvent(Event e) {
            ok();
        }
    };
    lsTree = new Listener() {

        public void handleEvent(Event e) {
            treeDblClick(e);
        }
    };
    /*
     * lsCreatePlugin = new Listener() { public void handleEvent(Event e) { createPlugin(); } };
     */
    wCancel.addListener(SWT.Selection, lsCancel);
    wTest.addListener(SWT.Selection, lsTest);
    wOK.addListener(SWT.Selection, lsOK);
    // wCreatePlugin.addListener(SWT.Selection, lsCreatePlugin);
    wTree.addListener(SWT.MouseDoubleClick, lsTree);
    lsDef = new SelectionAdapter() {

        public void widgetDefaultSelected(SelectionEvent e) {
            ok();
        }
    };
    wStepname.addSelectionListener(lsDef);
    // Detect X or ALT-F4 or something that kills this window...
    shell.addShellListener(new ShellAdapter() {

        public void shellClosed(ShellEvent e) {
            if (!cancel()) {
                e.doit = false;
            }
        }
    });
    folder.addCTabFolder2Listener(new CTabFolder2Adapter() {

        public void close(CTabFolderEvent event) {
            CTabItem cItem = (CTabItem) event.item;
            event.doit = false;
            if (cItem != null && folder.getItemCount() > 1) {
                MessageBox messageBox = new MessageBox(shell, SWT.ICON_QUESTION | SWT.NO | SWT.YES);
                messageBox.setText(BaseMessages.getString(PKG, "UserDefinedJavaClassDialog.DeleteItem.Label"));
                messageBox.setMessage(BaseMessages.getString(PKG, "UserDefinedJavaClassDialog.ConfirmDeleteItem.Label", cItem.getText()));
                switch(messageBox.open()) {
                    case SWT.YES:
                        modifyTabTree(cItem, TabActions.DELETE_ITEM);
                        event.doit = true;
                        break;
                    default:
                        break;
                }
            }
        }
    });
    cMenu = new Menu(shell, SWT.POP_UP);
    buildingFolderMenu();
    tMenu = new Menu(shell, SWT.POP_UP);
    buildingTreeMenu();
    // Adding the Default Transform Class Item to the Tree
    wTreeClassesItem = new TreeItem(wTree, SWT.NULL);
    wTreeClassesItem.setImage(guiResource.getImageBol());
    wTreeClassesItem.setText(BaseMessages.getString(PKG, "UserDefinedJavaClassDialog.Classes.Label"));
    // Set the shell size, based upon previous time...
    setSize();
    getData();
    // Adding the Rest (Functions, InputItems, etc.) to the Tree
    buildSnippitsTree();
    // Input Fields
    itemInput = new TreeItem(wTree, SWT.NULL);
    itemInput.setImage(imageInputFields);
    itemInput.setText(BaseMessages.getString(PKG, "UserDefinedJavaClassDialog.InputFields.Label"));
    itemInput.setData("Field Helpers");
    // Info Fields
    itemInfo = new TreeItem(wTree, SWT.NULL);
    itemInfo.setImage(imageInputFields);
    itemInfo.setText(BaseMessages.getString(PKG, "UserDefinedJavaClassDialog.InfoFields.Label"));
    itemInfo.setData("Field Helpers");
    // Output Fields
    itemOutput = new TreeItem(wTree, SWT.NULL);
    itemOutput.setImage(imageOutputFields);
    itemOutput.setText(BaseMessages.getString(PKG, "UserDefinedJavaClassDialog.OutputFields.Label"));
    itemOutput.setData("Field Helpers");
    // Display waiting message for input
    itemWaitFieldsIn = new TreeItem(itemInput, SWT.NULL);
    itemWaitFieldsIn.setText(BaseMessages.getString(PKG, "UserDefinedJavaClassDialog.GettingFields.Label"));
    itemWaitFieldsIn.setForeground(guiResource.getColorDirectory());
    itemInput.setExpanded(true);
    // Display waiting message for info
    itemWaitFieldsInfo = new TreeItem(itemInfo, SWT.NULL);
    itemWaitFieldsInfo.setText(BaseMessages.getString(PKG, "UserDefinedJavaClassDialog.GettingFields.Label"));
    itemWaitFieldsInfo.setForeground(guiResource.getColorDirectory());
    itemInfo.setExpanded(true);
    // Display waiting message for output
    itemWaitFieldsOut = new TreeItem(itemOutput, SWT.NULL);
    itemWaitFieldsOut.setText(BaseMessages.getString(PKG, "UserDefinedJavaClassDialog.GettingFields.Label"));
    itemWaitFieldsOut.setForeground(guiResource.getColorDirectory());
    itemOutput.setExpanded(true);
    // 
    // Search the fields in the background
    // 
    final Runnable runnable = new Runnable() {

        public void run() {
            StepMeta stepMeta = transMeta.findStep(stepname);
            if (stepMeta != null) {
                try {
                    inputRowMeta = transMeta.getPrevStepFields(stepMeta);
                    infoRowMeta = transMeta.getPrevInfoFields(stepMeta);
                    outputRowMeta = transMeta.getThisStepFields(stepMeta, null, inputRowMeta.clone());
                    populateFieldsTree();
                } catch (KettleException e) {
                    log.logError(BaseMessages.getString(PKG, "System.Dialog.GetFieldsFailed.Message"), e);
                }
            }
        }
    };
    new Thread(runnable).start();
    addRenameToTreeScriptItems();
    input.setChanged(changed);
    // Create the drag source on the tree
    DragSource ds = new DragSource(wTree, DND.DROP_MOVE);
    ds.setTransfer(new Transfer[] { TextTransfer.getInstance() });
    ds.addDragListener(new DragSourceAdapter() {

        public void dragStart(DragSourceEvent event) {
            boolean doit = false;
            TreeItem item = wTree.getSelection()[0];
            // Allow dragging snippits and field helpers
            if (item != null && item.getParentItem() != null) {
                if ("Snippits Category".equals(item.getParentItem().getData()) && !"Snippits Category".equals(item.getData())) {
                    doit = true;
                } else if ("Field Helpers".equals(item.getParentItem().getData())) {
                    doit = true;
                } else if (item.getParentItem().getParentItem() != null && "Field Helpers".equals(item.getParentItem().getParentItem().getData())) {
                    doit = true;
                }
            }
            event.doit = doit;
        }

        public void dragSetData(DragSourceEvent event) {
            // Set the data to be the first selected item's data
            event.data = wTree.getSelection()[0].getData();
        }
    });
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch()) {
            display.sleep();
        }
    }
    return stepname;
}