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

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

  1. HOME
  2. Java
  3. org.eclipse.jface
  4. org.eclipse.jface.viewers.*
  5. IStructuredSelection
  6. isEmpty

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.bdaum.zoom.ui.internal.preferences.PerspectivesPreferencePage.java

License:Open Source License

@Override
protected void doUpdateButtons() {
    IStructuredSelection sel = viewer.getStructuredSelection();
    deleteButton.setEnabled(!sel.isEmpty() && !isPredefined((IPerspectiveDescriptor) sel.getFirstElement()));
}

From source file:com.bdaum.zoom.ui.internal.views.BookmarkView.java

License:Open Source License

private void makeActions() {
    gotoBookmarkAction = new GotoBookmarkAction(null, this);
    deleteAction = new Action(Messages.getString("BookmarkView.delete_bookmark"), Icons.delete //$NON-NLS-1$
            .getDescriptor()) {/*  www  . j a v a2 s. c  om*/
        @Override
        public void run() {
            IStructuredSelection selection = viewer.getStructuredSelection();
            if (!selection.isEmpty()) {
                Bookmark bookmark = (Bookmark) selection.getFirstElement();
                Core.getCore().getDbManager().safeTransaction(bookmark, null);
                int i = 0;
                while (true) {
                    Object element = viewer.getElementAt(i++);
                    if (element == null || element == bookmark)
                        break;
                }
                Object nextSelection = viewer.getElementAt(i);
                if (nextSelection == null && i >= 2)
                    nextSelection = viewer.getElementAt(i - 2);
                viewer.remove(bookmark);
                if (nextSelection != null)
                    viewer.setSelection(new StructuredSelection(nextSelection));
                updateActions();
            }
        }
    };
    deleteAction.setToolTipText(Messages.getString("BookmarkView.delete_bookmark_tooltip")); //$NON-NLS-1$
}

From source file:com.bdaum.zoom.ui.internal.views.BookmarkView.java

License:Open Source License

private void hookDoubleClickAction() {
    viewer.addDoubleClickListener(new IDoubleClickListener() {
        public void doubleClick(DoubleClickEvent event) {
            IStructuredSelection selection = viewer.getStructuredSelection();
            if (!selection.isEmpty()) {
                gotoBookmarkAction.setBookmark((Bookmark) selection.getFirstElement());
                gotoBookmarkAction.run();
            }/*ww  w .  j  a  va2  s .com*/
        }
    });
}

From source file:com.bdaum.zoom.ui.internal.views.CatalogView.java

License:Open Source License

public void perspectiveActivated(IWorkbenchPage page, IPerspectiveDescriptor perspective) {
    IStructuredSelection selection = viewer.getStructuredSelection();
    if (!selection.isEmpty()) {
        Object selected = selection.getFirstElement();
        Object newSelection = null;
        for (IViewReference ref : page.getViewReferences()) {
            IViewPart view = ref.getView(false);
            if (view instanceof BasicView) {
                Object content = ((BasicView) view).getContent();
                if (selected == content
                        && !UiActivator.getDefault().isPresentationPerspective(perspective.getId()))
                    return;
                if (content instanceof SmartCollection)
                    newSelection = content;
            }/*from   w ww.j a v  a2s  .  c o m*/
        }
        if (newSelection != null)
            setViewerSelection(new StructuredSelection(newSelection), true);
    }
}

From source file:com.bdaum.zoom.ui.internal.views.CatalogView.java

License:Open Source License

@Override
protected void updateActions(IStructuredSelection selection, boolean force) {
    if (deleteAction != null) {
        super.updateActions(selection, force);
        boolean writable = !dbIsReadonly();
        createGroup.setEnabled(writable);
        if (selection.isEmpty()) {
            deleteAction.setEnabled(false);
            cutCollection.setEnabled(false);
            copyCollection.setEnabled(false);
            createSlideShowAction.setEnabled(false);
            createWebGalleryAction.setEnabled(false);
            createExhibitionAction.setEnabled(false);
            createCollectionAction.setEnabled(false);
            createAlbumAction.setEnabled(false);
            addSubAlbumAction.setEnabled(false);
            addSubCollectionAction.setEnabled(false);
            addSubGroupAction.setEnabled(false);
            playSlideshowAction.setEnabled(false);
            refreshAction.setEnabled(false);
        } else {/*from   w  w  w . ja v a  2s.c  om*/
            Object obj = selection.getFirstElement();
            if ((obj instanceof GroupImpl)) {
                GroupImpl group = (GroupImpl) obj;
                boolean exhibition = !group.getExhibition().isEmpty();
                boolean slideshow = !group.getSlideshow().isEmpty();
                boolean webgallery = group.getWebGallery() != null && !group.getWebGallery().isEmpty();
                boolean collection = !group.getRootCollection().isEmpty();
                String groupId = group.getStringId();
                if (!exhibition && !slideshow && !webgallery && !collection) {
                    exhibition = Constants.GROUP_ID_EXHIBITION.equals(groupId);
                    slideshow = Constants.GROUP_ID_SLIDESHOW.equals(groupId);
                    webgallery = Constants.GROUP_ID_WEBGALLERY.equals(groupId);
                    if (!exhibition && !slideshow && !webgallery)
                        collection = exhibition = slideshow = webgallery = true;
                }
                addSubGroupAction.setEnabled((!group.getSystem() || isPersonGroup(group)) && writable);
                createWebGalleryAction.setEnabled(webgallery && writable);
                createSlideShowAction.setEnabled(slideshow && writable);
                createExhibitionAction.setEnabled(exhibition && writable);
                createCollectionAction.setEnabled(collection && writable);
                createAlbumAction.setEnabled(collection && writable);
                deleteAction.setEnabled(!hasChildren(group) && !group.getSystem() && writable);
                cutCollection.setEnabled(false);
                copyCollection.setEnabled(false);
                addSubCollectionAction.setEnabled(false);
                addSubAlbumAction.setEnabled(false);
                refreshAction.setEnabled(true);
            } else {
                refreshAction.setEnabled(false);
                addSubGroupAction.setEnabled(false);
                createSlideShowAction.setEnabled(false);
                createExhibitionAction.setEnabled(false);
                createWebGalleryAction.setEnabled(false);
                createCollectionAction.setEnabled(false);
                createAlbumAction.setEnabled(false);
                if (obj instanceof SmartCollection) {
                    SmartCollection coll = (SmartCollection) obj;
                    boolean enabled = !coll.getSystem() && writable;
                    boolean deleteEnabled = enabled;
                    if (!enabled) {
                        deleteEnabled = coll.getName() == null || coll.getName().isEmpty();
                        if (!deleteEnabled) {
                            String collId = coll.getStringId();
                            String key = QueryField.URI.getKey() + '=';
                            if (collId.startsWith(key))
                                try {
                                    deleteEnabled = !new File(new URI(collId.substring(key.length()))).exists();
                                } catch (URISyntaxException e) {
                                    deleteEnabled = true;
                                }
                        }
                    }
                    deleteAction.setEnabled(deleteEnabled);
                    cutCollection.setEnabled(enabled);
                    copyCollection.setEnabled(enabled);
                    boolean isFinal = (coll.getCriterion().size() == 1
                            && coll.getCriterion(0).getField().startsWith("*")); //$NON-NLS-1$
                    addSubCollectionAction.setEnabled(!isFinal && writable);
                    addSubAlbumAction.setEnabled(!coll.getSystem() && coll.getAlbum() && writable);
                } else {
                    deleteAction.setEnabled(writable);
                    cutCollection.setEnabled(writable);
                    copyCollection.setEnabled(writable);
                    addSubCollectionAction.setEnabled(false);
                }
            }
        }
        Object contents = clipboard.getContents(LocalSelectionTransfer.getTransfer());
        pasteCollection.setEnabled((contents instanceof IStructuredSelection
                && ((IStructuredSelection) contents).getFirstElement() instanceof SmartCollectionImpl)
                && writable);
    }
}

From source file:com.bdaum.zoom.ui.internal.views.CatalogView.java

License:Open Source License

@Override
public void collectionChanged(IWorkbenchPart part, IStructuredSelection selection) {
    if (part != this && selection != null && !selection.isEmpty())
        setViewerSelection(selection, true);
}

From source file:com.byterefinery.rmbench.database.mysql.EnumAndSetDialog.java

License:Open Source License

private void createListViewer(Composite parent) {
    typesViewer = new TableViewer(parent, SWT.BORDER);
    GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true);
    gd.verticalSpan = 4;//  w  w w  .j ava  2s.  c o m
    typesViewer.getControl().setLayoutData(gd);
    typesViewer.setLabelProvider(new TypeLabelProvider());
    typesViewer.setContentProvider(new TypesContentProvider());
    typesViewer.addSelectionChangedListener(new ISelectionChangedListener() {

        public void selectionChanged(SelectionChangedEvent event) {
            IStructuredSelection sel = (IStructuredSelection) event.getSelection();
            if (sel.isEmpty()) {
                deleteButton.setEnabled(false);
                return;
            }

            inputText.setText((String) sel.getFirstElement());
            deleteButton.setEnabled(true);
        }
    });
}

From source file:com.byterefinery.rmbench.dialogs.export.ExportWizard.java

License:Open Source License

public void init(IWorkbench workbench, IStructuredSelection selection) {
    if (!selection.isEmpty()) {
        IExportable exportable = (IExportable) selection.getFirstElement();
        diagramExport = exportable.getDiagramExport();
        modelExport = exportable.getModelExport();
    }/*from   w w w.j  a  v  a  2s.  c  o m*/
    if (diagramExport == null) {
        IWorkbenchWindow ww = workbench.getActiveWorkbenchWindow();
        if (ww != null && ww.getActivePage() != null) {
            IEditorPart ep = ww.getActivePage().getActiveEditor();
            if (ep instanceof DiagramEditor) {
                DiagramEditor de = (DiagramEditor) ep;
                diagramExport = de.getDiagramPart();
            }
        }
    }
    if (modelExport == null)
        modelExport = RMBenchPlugin.getDefault().getModelExport();
}

From source file:com.byterefinery.rmbench.util.keyboardsupport.TableViewerKeyBoardSupporter.java

License:Open Source License

private Object getSelectedElement() {
    IStructuredSelection selection = (IStructuredSelection) tableViewer.getSelection();
    if (selection == null || selection.isEmpty())
        return null;

    return selection.getFirstElement();
}

From source file:com.cea.papyrus.views.cpp.views.CppPanelView.java

License:Open Source License

public void selectionChanged(IWorkbenchPart part, ISelection selection) {

    IStructuredSelection sSelection = null;
    if (selection instanceof IStructuredSelection) {
        sSelection = (IStructuredSelection) selection;
    }//  ww  w.  j av a 2 s.com

    // exclude case of an empty selection which is not a Tree selection, since changing views provokes an
    // empty selection (selection gets lost, although same element remains selected)
    if ((selection != null) && (sSelection != null) && sSelection.isEmpty()) {
        return;
    }
    currentTarget = null;

    // No available selection: switch to default panel
    if ((sSelection == null) || (sSelection.size() != 1)) {
        switchUI();
        return;
    }

    // Retrieve selected object
    Object currentObject = sSelection.getFirstElement();
    // If the object is an edit part, try to get semantic bridge
    if (currentObject instanceof GraphicalEditPart) {
        GraphicalEditPart editPart = (GraphicalEditPart) currentObject;
        if (editPart.getModel() instanceof View) {
            View view = (View) editPart.getModel();
            if (view.getElement() instanceof Element) {
                currentObject = (Element) view.getElement();
            }
        }
    } else if (currentObject instanceof IAdaptable) {
        // modisco ModelElementItem supports IAdaptable (cleaner than cast / dependency with modisco)
        currentObject = ((IAdaptable) currentObject).getAdapter(EObject.class);
    }

    if (currentObject instanceof Element) {
        currentTarget = (Element) currentObject;
        switchUI();
    }
}