Example usage for org.eclipse.jface.viewers IStructuredSelection isEmpty

List of usage examples for org.eclipse.jface.viewers IStructuredSelection isEmpty

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Introduction

In this page you can find the example usage for org.eclipse.jface.viewers IStructuredSelection isEmpty.

Prototype

public boolean isEmpty();

Source Link

Document

Returns whether this selection is empty.

Usage

From source file:com.nabsys.nabeeplus.widgets.PopupList.java

License:Open Source License

/**
* Launches the Popup List, waits for an item to be selected and then closes the PopupList.
*
* @param rect the initial size and location of the PopupList; the dialog will be
*        positioned so that it does not run off the screen and the largest number of items are visible
*
* @return the text of the selected item or null if no item is selected
*///from  w  w w. ja  va  2 s.c om
public String open(Rectangle rect) {
    shell.setBounds(rect);

    shell.open();

    Display display = shell.getDisplay();
    while (!shell.isDisposed() && shell.isVisible()) {
        if (!display.readAndDispatch())
            display.sleep();
    }

    String result = null;
    if (!shell.isDisposed()) {
        IStructuredSelection selection = (IStructuredSelection) list.getSelection();

        if (!selection.isEmpty()) {
            PopupListModel popupListModel = (PopupListModel) selection.getFirstElement();
            result = popupListModel.getID();
        }

        shell.dispose();
    }
    return result;
}

From source file:com.netxforge.screens.editing.base.actions.handlers.DynamicScreensActionHandler.java

License:Open Source License

@Override
public void handleSelection(IStructuredSelection ss) {
    this.selection = ss;

    if (BaseEditingActivator.DEBUG && !ss.isEmpty()) {
        BaseEditingActivator.TRACE.trace(null, "update selection: " + ss);
    }/* ww w  .j  a  v  a2  s .  c  o m*/

    for (IAction action : actions) {

        if (action instanceof com.netxforge.screens.editing.base.actions.BaseSelectionListenerAction) {
            com.netxforge.screens.editing.base.actions.BaseSelectionListenerAction bsla = (com.netxforge.screens.editing.base.actions.BaseSelectionListenerAction) action;
            bsla.selectionChanged(ss);
        } else if (action instanceof org.eclipse.ui.actions.BaseSelectionListenerAction) {
            org.eclipse.ui.actions.BaseSelectionListenerAction bsla = (org.eclipse.ui.actions.BaseSelectionListenerAction) action;
            bsla.selectionChanged(ss);

        }
    }
}

From source file:com.nextep.designer.dbgm.ui.editors.DomainEditorComponent.java

License:Open Source License

@Override
public Control create(Composite parent) {
    final Composite editor = new Composite(parent, SWT.NONE);
    GridLayout l = new GridLayout(2, false);
    l.marginBottom = l.marginHeight = l.marginLeft = l.marginRight = l.marginTop = l.marginWidth = 0;
    editor.setLayout(l);/*from  www .  j  ava  2s  .c o  m*/

    Table t = DomainTable.create(editor);
    GridData gd = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 2);
    gd.heightHint = 250;
    t.setLayoutData(gd);

    domainViewer = new TableViewer(t);
    final DomainContentProvider provider = new DomainContentProvider();
    domainViewer.setContentProvider(provider);
    domainViewer.setLabelProvider(new DomainLabelProvider());

    CellEditor[] editors = new CellEditor[5];
    editors[1] = new TextCellEditor(t);
    editors[2] = new TextCellEditor(t);
    editors[3] = new TextCellEditor(t);
    editors[4] = new TextCellEditor(t);
    domainViewer.setCellEditors(editors);
    domainViewer.setColumnProperties(new String[] { COL_SEL, COL_NAME, COL_DESC, COL_LENGTH, COL_PRECISION });
    domainViewer.setSorter(new ViewerSorter());
    domainViewer.setCellModifier(new ICellModifier() {

        @Override
        public boolean canModify(Object element, String property) {
            return !COL_SEL.equals(property);
        }

        @Override
        public Object getValue(Object element, String property) {
            final IDomain d = (IDomain) element;
            if (COL_NAME.equals(property)) {
                return notNull(d.getName());
            }
            if (COL_DESC.equals(property)) {
                return notNull(d.getDescription());
            }
            if (COL_LENGTH.equals(property)) {
                return notNull(d.getLengthExpr());
            }
            if (COL_PRECISION.equals(property)) {
                return notNull(d.getPrecisionExpr());
            }
            return null;
        }

        @Override
        public void modify(Object element, String property, Object value) {
            final IDomain d = (IDomain) ((TableItem) element).getData();
            if (COL_NAME.equals(property)) {
                d.setName((String) value);
            } else if (COL_DESC.equals(property)) {
                d.setDescription((String) value);
            } else if (COL_LENGTH.equals(property)) {
                d.setLengthExpr((String) value);
            } else if (COL_PRECISION.equals(property)) {
                d.setPrecisionExpr((String) value);
            }
        }
    });

    Button addButton = new Button(editor, SWT.PUSH);
    addButton.setText(UIMessages.getString("component.typedListBlock.add")); //$NON-NLS-1$
    addButton.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
    addButton.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(SelectionEvent e) {
            IDomain d = (IDomain) UIControllerFactory.getController(IElementType.getInstance(IDomain.TYPE_ID))
                    .newInstance(null);
            provider.add(d);
            domainViewer.editElement(d, 1);
        }
    });
    Button removeButton = new Button(editor, SWT.PUSH);
    removeButton.setText(UIMessages.getString("component.typedListBlock.remove")); //$NON-NLS-1$
    removeButton.setLayoutData(new GridData(SWT.FILL, SWT.UP, false, false));
    removeButton.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(SelectionEvent e) {
            ISelection s = domainViewer.getSelection();
            if (s instanceof IStructuredSelection) {
                for (Object o : ((IStructuredSelection) s).toList()) {
                    final IDomain d = (IDomain) o;
                    // Removing vendor types
                    for (IDomainVendorType t : new ArrayList<IDomainVendorType>(d.getVendorTypes())) {
                        d.removeVendorType(t);
                    }
                    CorePlugin.getIdentifiableDao().delete(d);
                    // Removing domain
                    domainViewer.remove(d);
                }
            }
        }
    });

    final IDatatypeService datatypeService = CorePlugin.getService(IDatatypeService.class);
    datatypeService.reset();
    final Collection<IDomain> domains = datatypeService.getDomains();
    domainViewer.setInput(domains);

    // Domain vendor type section
    final Table typeTab = DomainTable.createDomainType(editor);
    final TableViewer typeViewer = new TableViewer(typeTab);
    GridData typeData = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 2);
    typeData.heightHint = 200;
    typeTab.setLayoutData(typeData);
    Button addTypeButton = new Button(editor, SWT.PUSH);
    addTypeButton.setText(UIMessages.getString("component.typedListBlock.add")); //$NON-NLS-1$
    addTypeButton.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
    addTypeButton.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(SelectionEvent e) {
            final IDomain domain = getSelectedDomain();
            if (domain == null) {
                MessageDialog.openWarning(editor.getShell(),
                        DBGMUIMessages.getString("domainPrefNoSelectionTitle"), //$NON-NLS-1$
                        DBGMUIMessages.getString("domainPrefNoSelection")); //$NON-NLS-1$
                return;
            }
            final Object o = UIControllerFactory
                    .getController(IElementType.getInstance(IDomainVendorType.TYPE_ID))
                    .emptyInstance(null, domain);
            typeViewer.editElement(o, 0);
        }
    });
    Button removeTypeButton = new Button(editor, SWT.PUSH);
    removeTypeButton.setText(UIMessages.getString("component.typedListBlock.remove")); //$NON-NLS-1$
    removeTypeButton.setLayoutData(new GridData(SWT.FILL, SWT.UP, false, false));

    typeViewer.setContentProvider(new DomainTypeContentProvider());
    typeViewer.setLabelProvider(new DomainTypeLabelProvider());
    typeViewer.setColumnProperties(new String[] { COL_VENDOR, COL_TYPE, COL_LENGTH, COL_PRECISION });
    CellEditor[] typeEditors = new CellEditor[4];

    typeEditors[0] = new ComboBoxCellEditor(typeTab, sortedVendors.toArray(new String[sortedVendors.size()]),
            SWT.READ_ONLY);
    typeEditors[1] = new TextCellEditor(typeTab);
    typeEditors[2] = new TextCellEditor(typeTab);
    typeEditors[3] = new TextCellEditor(typeTab);
    typeViewer.setCellEditors(typeEditors);
    typeViewer.setCellModifier(new ICellModifier() {

        @Override
        public boolean canModify(Object element, String property) {
            return true;
        }

        @Override
        public Object getValue(Object element, String property) {
            IDomainVendorType t = (IDomainVendorType) element;
            if (COL_VENDOR.equals(property)) {
                if (t.getDBVendor() != null) {
                    return sortedVendors.indexOf(t.getDBVendor().toString());
                } else {
                    return 0;
                }
            } else if (COL_TYPE.equals(property)) {
                if (t.getDatatype() != null) {
                    return notNull(t.getDatatype().getName());
                } else {
                    return ""; //$NON-NLS-1$
                }
            } else if (COL_LENGTH.equals(property)) {
                if (t.getDatatype() != null && t.getDatatype().getLength() != null) {
                    return String.valueOf(t.getDatatype().getLength());
                } else {
                    return ""; //$NON-NLS-1$
                }
            } else if (COL_PRECISION.equals(property)) {
                if (t.getDatatype() != null && t.getDatatype().getPrecision() != null) {
                    return String.valueOf(t.getDatatype().getPrecision());
                } else {
                    return ""; //$NON-NLS-1$
                }
            }
            return null;
        }

        @Override
        public void modify(Object element, String property, Object value) {
            IDomainVendorType t = (IDomainVendorType) ((TableItem) element).getData();
            if (COL_VENDOR.equals(property)) {
                String val = sortedVendors.get((Integer) value);
                for (DBVendor v : DBVendor.values()) {
                    if (v.toString().equals(val)) {
                        t.setDBVendor(v);
                    }
                }
            } else if (COL_TYPE.equals(property)) {
                if (t.getDatatype() == null) {
                    t.setDatatype(Datatype.getDefaultDatatype());
                }
                t.getDatatype().setName((String) value);
                t.notifyListeners(ChangeEvent.MODEL_CHANGED, null);
            } else if (COL_LENGTH.equals(property)) {
                try {
                    if (value != null && !"".equals(((String) value).trim())) { //$NON-NLS-1$
                        t.getDatatype().setLength(Integer.valueOf((String) value));
                    } else {
                        t.getDatatype().setLength(null);
                    }
                } catch (NumberFormatException e) {
                    t.getDatatype().setLength(null);
                }
                t.notifyListeners(ChangeEvent.MODEL_CHANGED, null);
            } else if (COL_PRECISION.equals(property)) {
                try {
                    if (value != null && !"".equals(((String) value).trim())) { //$NON-NLS-1$
                        t.getDatatype().setPrecision(Integer.valueOf((String) value));
                    } else {
                        t.getDatatype().setPrecision(null);
                    }
                } catch (NumberFormatException e) {
                    t.getDatatype().setPrecision(null);
                }
                t.notifyListeners(ChangeEvent.MODEL_CHANGED, null);
            }
        }
    });

    domainViewer.addSelectionChangedListener(new ISelectionChangedListener() {

        @Override
        public void selectionChanged(SelectionChangedEvent event) {
            if (event.getSelection() instanceof IStructuredSelection) {
                final IStructuredSelection sel = (IStructuredSelection) event.getSelection();
                if (!sel.isEmpty()) {
                    typeViewer.setInput(sel.getFirstElement());
                } else {
                    typeViewer.setInput(null);
                }
            }
        }
    });
    removeTypeButton.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(SelectionEvent e) {
            ISelection s = typeViewer.getSelection();
            if (s instanceof IStructuredSelection) {
                final IStructuredSelection sel = (IStructuredSelection) s;
                if (!sel.isEmpty()) {
                    for (Object o : sel.toList()) {
                        if (o instanceof IDomainVendorType) {
                            final IDomainVendorType vt = (IDomainVendorType) o;
                            vt.getDomain().removeVendorType(vt);
                        }
                    }
                }
            }
        }
    });
    return editor;
}

From source file:com.nextep.designer.dbgm.ui.editors.DomainEditorComponent.java

License:Open Source License

/**
 * @return teh currently selected domain, or <code>null</code> if no
 *         selection/*  w ww  .j  a  v  a 2s  .  c o  m*/
 */
private IDomain getSelectedDomain() {
    if (domainViewer.getSelection() instanceof IStructuredSelection) {
        final IStructuredSelection sel = (IStructuredSelection) domainViewer.getSelection();
        if (sel.isEmpty()) {
            return null;
        } else {
            return (IDomain) sel.getFirstElement();
        }
    }
    return null;
}

From source file:com.nextep.designer.dbgm.ui.handlers.AddTableToDiagramHandler.java

License:Open Source License

@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
    ISelection s = HandlerUtil.getCurrentSelection(event);
    if (s instanceof IStructuredSelection) {
        final IStructuredSelection sel = (IStructuredSelection) s;
        if (!sel.isEmpty() && sel.getFirstElement() instanceof DiagramEditPart) {
            final DiagramEditPart diagPart = (DiagramEditPart) sel.getFirstElement();
            // Retrieving our current diagram
            IDiagram diagram = (IDiagram) ((DiagramEditPart) sel.getFirstElement()).getModel();
            diagram = VCSUIPlugin.getVersioningUIService().ensureModifiable(diagram);
            promptForTableAdditions(event, diagram);
        }/*from  ww  w  .  j a  v  a2  s. co m*/
    }
    // TODO Auto-generated method stub
    return null;
}

From source file:com.nextep.designer.dbgm.ui.handlers.EditDiagramItemHandler.java

License:Open Source License

@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
    ISelection s = HandlerUtil.getCurrentSelection(event);
    if (s instanceof IStructuredSelection) {
        final IStructuredSelection sel = (IStructuredSelection) s;
        if (!sel.isEmpty()) {
            if (sel.size() > WARN_DIALOG_ABOVE) {
                final boolean confirmed = MessageDialog.openConfirm(HandlerUtil.getActiveShell(event),
                        MessageFormat.format(DBGMUIMessages.getString("editDiagramItemWarnCountTitle"),
                                sel.size()),
                        MessageFormat.format(DBGMUIMessages.getString("editDiagramItemWarnCount"), sel.size(),
                                sel.size()));
                if (!confirmed) {
                    return null;
                }//from  ww w  .j av  a  2 s . c  o m
            }
            for (Iterator<?> it = sel.iterator(); it.hasNext();) {
                final Object o = it.next();
                if (o instanceof DiagramItemPart || o instanceof ConnectionEditPart) {
                    Object model = ((GraphicalEditPart) o).getModel();
                    Object innerModel = model;
                    if (model instanceof IDiagramItem) {
                        innerModel = ((IDiagramItem) model).getItemModel();
                    }
                    if (innerModel instanceof ITypedObject) {
                        UIControllerFactory.getController(((ITypedObject) innerModel).getType())
                                .defaultOpen((ITypedObject) innerModel);
                    }

                }

            }
        }
    }
    return null;
}

From source file:com.nextep.designer.ui.handlers.EditTypedItemHandler.java

License:Open Source License

@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
    ISelection s = HandlerUtil.getCurrentSelection(event);
    if (s instanceof IStructuredSelection) {
        final IStructuredSelection sel = (IStructuredSelection) s;
        if (!sel.isEmpty()) {
            // Warning before opening too many editors
            if (sel.size() > WARN_DIALOG_ABOVE) {
                final boolean confirmed = MessageDialog.openConfirm(HandlerUtil.getActiveShell(event),
                        MessageFormat.format(UIMessages.getString("editItemWarnCountTitle"), sel.size()), //$NON-NLS-1$
                        MessageFormat.format(UIMessages.getString("editItemWarnCount"), sel.size(), sel //$NON-NLS-1$
                                        .size()));
                if (!confirmed) {
                    return null;
                }//  w w w .jav  a  2 s  .c  o  m
            }
            // If OK, we open everything
            final Iterator<?> selIt = sel.iterator();
            while (selIt.hasNext()) {
                final Object o = selIt.next();
                if ((o instanceof ITypedObject) && !(o instanceof IConnector<?, ?>)) {
                    final ITypedObject t = (ITypedObject) o;
                    UIControllerFactory.getController(t.getType()).defaultOpen(t);
                }
            }
        }
    }
    return null;
}

From source file:com.nextep.designer.vcs.gef.VersionInfoFigure.java

License:Open Source License

public void paintFigure(Graphics graphics) {
    Rectangle bounds = getBounds().getCopy().resize(-2, -2).translate(1, 1);

    graphics.setBackgroundColor(ColorConstants.darkGray);
    graphics.fillOval(bounds.getTranslated(1, 1));
    graphics.setBackgroundColor(getLocalBackgroundColor());
    graphics.fillOval(bounds);/* ww w .j  av a  2  s.  c om*/
    if (selected) {
        graphics.setForegroundColor(ColorConstants.red);
        Rectangle redBox = getBounds().getCopy().resize(-1, -1);
        graphics.drawRectangle(redBox);
    }
    //Handling selection
    ISelection sel = provider.getSelection();
    if (sel instanceof IStructuredSelection) {
        IStructuredSelection s = (IStructuredSelection) sel;
        if (!s.isEmpty() && s.getFirstElement() == version) {
            graphics.setForegroundColor(ColorConstants.blue);
            graphics.setLineWidth(2);
            graphics.drawRectangle(getBounds());
        }
    }
    graphics.restoreState();
}

From source file:com.nextep.designer.vcs.ui.handlers.AbstractVersionHandler.java

License:Open Source License

/**
 * @see org.eclipse.core.commands.AbstractHandler#isEnabled()
 *//*from w ww.  j  a  v  a  2  s .c  om*/
@Override
public boolean isEnabled() {
    // log.debug(this.getClass().getSimpleName() + ": isEnabled() called.");
    final ISelectionProvider provider = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage()
            .getActivePart().getSite().getSelectionProvider();
    final ISelection s = provider.getSelection();
    if (s instanceof IStructuredSelection) {
        final IStructuredSelection sel = (IStructuredSelection) s;
        if (sel.isEmpty()) {
            return false;
        } else {
            for (Object o : sel.toList()) {
                if (o instanceof IVersionable<?>) {
                    // Our selection might not point to the current workspace object if the
                    // UI is not yet synched with latest model object so we refetch it from
                    // reference
                    final IVersionable<?> selectedVersion = (IVersionable<?>) o;
                    try {
                        final IVersionable<?> workspaceVersion = (IVersionable<?>) VersionHelper
                                .getReferencedItem(selectedVersion.getReference());
                        if (log.isDebugEnabled()) {
                            log.debug("HANDLER ENABLEMENT (" + this.getClass().getName() //$NON-NLS-1$
                                    + ") : Checking state of " + workspaceVersion + " version " //$NON-NLS-1$//$NON-NLS-2$
                                    + workspaceVersion.getVersion());
                        }
                        if (!isEnabled(workspaceVersion)) {
                            return false;
                        }
                    } catch (ErrorException e) {
                        // this will happen when we switch workspace and the current selection
                        // cannot be found, we disable everything in this case
                        return false;
                    }
                } else {
                    return false;
                }
            }
            return true;
        }
    }
    return false;

}

From source file:com.nextep.designer.vcs.ui.handlers.OpenTypedObjectAction.java

License:Open Source License

@Override
public void run() {
    final IStructuredSelection sel = (IStructuredSelection) selectionProvider.getSelection();
    if (!sel.isEmpty()) {
        // Warning before opening too many editors
        if (sel.size() > WARN_DIALOG_ABOVE) {
            final boolean confirmed = MessageDialog.openConfirm(page.getWorkbenchWindow().getShell(),
                    MessageFormat.format(UIMessages.getString("editItemWarnCountTitle"), sel.size()), //$NON-NLS-1$
                    MessageFormat.format(UIMessages.getString("editItemWarnCount"), sel.size(), sel.size())); //$NON-NLS-1$
            if (!confirmed) {
                return;
            }//from  w w w.  ja va2 s  .com
        }
        // If OK, we open everything
        final Iterator<?> selIt = sel.iterator();
        while (selIt.hasNext()) {
            final Object o = selIt.next();
            if ((o instanceof ITypedObject) && !(o instanceof IConnector<?, ?>)) {
                final ITypedObject t = (ITypedObject) o;
                UIControllerFactory.getController(t.getType()).defaultOpen(t);
            }
        }
    }
}