Example usage for org.eclipse.jface.viewers StructuredSelection EMPTY

List of usage examples for org.eclipse.jface.viewers StructuredSelection EMPTY

  1. HOME
  2. Java
  3. org.eclipse.jface
  4. org.eclipse.jface.viewers.*
  5. StructuredSelection
  6. EMPTY

Introduction

In this page you can find the example usage for org.eclipse.jface.viewers StructuredSelection EMPTY.

Prototype

StructuredSelection EMPTY

To view the source code for org.eclipse.jface.viewers StructuredSelection EMPTY.

Click Source Link

Document

The canonical empty selection.

Usage

From source file:com.nokia.tools.variant.editor.summary.ImageGallery.java

License:Open Source License

public ISelection getSelection() {
    if (selected == null) {
        return StructuredSelection.EMPTY;
    } else {/*from w ww  .j  a va  2 s .c  o  m*/
        return new StructuredSelection(selected.getData());
    }
}

From source file:com.nokia.tools.variant.navigator.views.NavigatorViewer.java

License:Open Source License

public NavigatorViewer(Composite parent) {
    scrolled = new ScrolledComposite(parent, SWT.V_SCROLL);
    scrolled.setExpandHorizontal(true);/*  ww  w. java 2 s  .  c  o  m*/
    scrolled.setExpandVertical(true);
    control = new NavigatorComposite(scrolled, SWT.NONE, this);
    scrolled.setContent(control);
    scrolled.addControlListener(new ControlAdapter() {
        @Override
        public void controlResized(ControlEvent e) {
            Point size;
            Rectangle ca = ((ScrolledComposite) control.getParent()).getClientArea();
            size = control.computeSize(ca.width, SWT.DEFAULT);
            // size.y = Math.max(size.y, getSize().y);
            ((ScrolledComposite) control.getParent()).setMinSize(size);
            control.setSize(size);
            control.layout(true, true);
            control.redraw();
        }
    });

    scrolled.getVerticalBar().setIncrement(new PixelConverter(scrolled).convertHeightInCharsToPixels(1));

    control.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetSelected(SelectionEvent e) {
            Object selected = null;
            if (e.item != null) {
                selected = e.item.getData();
            }
            ISelection sel = selected == null ? StructuredSelection.EMPTY : new StructuredSelection(selected);

            fireSelectionChanged(new SelectionChangedEvent(NavigatorViewer.this, sel));
        }
    });
}

From source file:com.nokia.tools.variant.preview.ui.PreviewViewPage.java

License:Open Source License

@Override
public void dispose() {
    setSelection(StructuredSelection.EMPTY);
    listeners.clear();// w  w  w .  ja v a 2  s  .c  o  m
    getSite().setSelectionProvider(null);
    disposePreviewControl();
    if (contributor != null) {
        contributor = null;
    }
    if (topComposite != null) {
        topComposite.dispose();
        topComposite = null;
    }
    super.dispose();
}

From source file:com.nokia.tools.variant.resourcelibrary.views.ResourceLibraryPage.java

License:Open Source License

/**
 * This is a callback that will allow us to create the viewer and initialize
 * it.//  w  w  w  .  ja v  a  2 s . co m
 */
public void createControl(Composite parent) {
    // Create new composite for nesting the tree & its layout data
    treeComposite = new Composite(parent, SWT.NONE);

    // Create tree viewer
    viewer = new TreeViewer(treeComposite, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);

    viewer.setContentProvider(provider);
    viewer.setLabelProvider(new ResourceLibraryTableLabelProvider());

    final Tree resourceTree = viewer.getTree();
    resourceTree.addKeyListener(new KeyAdapter() {
        @Override
        public void keyPressed(KeyEvent event) {
            actionGroup.handleKeyPressed(event);
        }
    });

    // Create columns
    TreeColumn nameCol = new TreeColumn(resourceTree, SWT.NONE);
    nameCol.setAlignment(SWT.LEFT);
    nameCol.setText(NAME_COLUMN_TEXT);
    nameCol.setWidth(150);

    TreeColumn typeCol = new TreeColumn(resourceTree, SWT.NONE);
    typeCol.setAlignment(SWT.RIGHT);
    typeCol.setText(SIZE_COLUMN_TEXT);
    typeCol.setWidth(50);

    TreeColumn noteCol = new TreeColumn(resourceTree, SWT.NONE);
    noteCol.setAlignment(SWT.CENTER);
    noteCol.setText(NOTE_COLUMN_TEXT);
    noteCol.setWidth(9);

    // Hook up column selection listeners for sorting
    sortProvider = new SimpleResourceComparator(viewer);
    viewer.setComparator(sortProvider);
    nameCol.addSelectionListener(sortProvider);
    typeCol.addSelectionListener(sortProvider);
    noteCol.addSelectionListener(sortProvider);

    // Set tree layout properties
    resourceTree.setHeaderVisible(true);
    resourceTree.setLinesVisible(true);
    TreeColumnLayout treeLayout = new TreeColumnLayout();
    treeComposite.setLayout(treeLayout);

    treeLayout.setColumnData(nameCol, new ColumnWeightData(80, 100, true));
    treeLayout.setColumnData(typeCol, new ColumnWeightData(20, 50, true));
    treeLayout.setColumnData(noteCol, new ColumnWeightData(9, 9, true));

    // Fetch a handle to file system.
    // viewer.setInput(this.getSite());
    hookDoubleClickAction();

    // Add drag & drop capability
    initDragAndDrop();

    // Set the selection to first element in the tree
    resorceModelRoot = (ResourceModelRoot) contributor.getAdapter(ResourceModelRoot.class);

    if (resorceModelRoot != null) {
        viewer.setInput(resorceModelRoot);
    }
    // Set selection provider
    viewer.addSelectionChangedListener(new ISelectionChangedListener() {
        public void selectionChanged(final SelectionChangedEvent event) {

            ISelection selection = createAdaptableSelection(event.getSelection());
            sendSelectionEvent(selection);
            updateMainMenu(selection);
        }

        private void updateMainMenu(ISelection selection2) {
            if (selection2.isEmpty()) {
                actionGroup.getDeleteResourceAction().setEnabled(false);
                actionGroup.getCopyResourceAction().setEnabled(false);
                actionGroup.getMoveResourceAction().setEnabled(false);
            } else {
                if (selection2 instanceof IStructuredSelection) {
                    IStructuredSelection structuredSelection = (IStructuredSelection) selection2;
                    Object object = structuredSelection.getFirstElement();

                    if (object instanceof ResourceStorage) {
                        ResourceStorage resourceStorage = (ResourceStorage) object;
                        if (!resourceStorage.getFileSystemElement().isReadOnly()) {
                            //                        actionGroup.getDeleteResourceAction()
                            //                              .setEnabled(true);
                            //                        actionGroup.getMoveResourceAction().setEnabled(
                            //                              true);
                        }
                        actionGroup.getCopyResourceAction().setEnabled(true);
                    }
                }
            }
        }
    });
    viewer.addPostSelectionChangedListener(new ISelectionChangedListener() {
        public void selectionChanged(final SelectionChangedEvent event) {
            sendPostSelectionEvent(createAdaptableSelection(event.getSelection()));
        }
    });

    // Create context menu
    menuMgr = new MenuManager("#PopupMenu");
    menuMgr.setRemoveAllWhenShown(true);
    menuMgr.addMenuListener(new IMenuListener() {
        public void menuAboutToShow(IMenuManager manager) {
            populateMenu(manager);
        }
    });
    Menu menu = menuMgr.createContextMenu(viewer.getControl());
    viewer.getControl().setMenu(menu);
    getSite().registerContextMenu("#PopupMenu", menuMgr, this);

    contributeToActionBars();
    viewer.setSelection(StructuredSelection.EMPTY);

    final TreeEditor editor = new TreeEditor(viewer.getTree());
    editor.horizontalAlignment = SWT.LEFT;
    editor.grabHorizontal = true;

    viewer.getControl().addKeyListener(new KeyAdapter() {
        public void keyPressed(KeyEvent event) {
            if (event.keyCode == SWT.F2 && event.stateMask == 0 && viewer.getTree().getSelectionCount() == 1) {
                event.doit = false;

                final TreeItem item = viewer.getTree().getSelection()[0];
                final FileSystemElement fes = (FileSystemElement) item.getData();
                if (!canRenameElement(fes)) {
                    return;
                }

                final Text text = new Text(viewer.getTree(), SWT.NONE);
                text.setText(item.getText());
                text.selectAll();
                text.setFocus();

                text.addFocusListener(new FocusAdapter() {
                    public void focusLost(FocusEvent event) {
                        updateElementName(fes, text.getText());
                        text.dispose();
                    }
                });

                text.addKeyListener(new KeyAdapter() {
                    public void keyPressed(KeyEvent event) {
                        switch (event.keyCode) {
                        case SWT.CR:
                            updateElementName(fes, text.getText());
                        case SWT.ESC:
                            text.dispose();
                            break;
                        }
                    }
                });
                editor.setEditor(text, item);
            }
        }
    });

    getCommandStack().addCommandStackEventListener(commandStackEventListener);
}

From source file:com.nokia.tools.variant.resourcelibrary.views.ResourceLibraryPage.java

License:Open Source License

public ISelection getSelection() {
    if (viewer != null) {
        return createAdaptableSelection(viewer.getSelection());
    } else {// w w w .  ja v a  2 s.  c o  m
        return StructuredSelection.EMPTY;
    }
}

From source file:com.nokia.tools.variant.resourcelibrary.views.ResourceLibraryPage.java

License:Open Source License

@Override
public void init(IPageSite pageSite) {
    super.init(pageSite);

    this.actionGroup = new ResourceLibraryActionGroup(this);
    this.actionGroup.setContext(new ActionContext(StructuredSelection.EMPTY));

    pageSite.setSelectionProvider(this);

    pageSite.getActionBars().setGlobalActionHandler("cut", actionGroup.getMoveResourceAction());
    pageSite.getActionBars().setGlobalActionHandler("delete", actionGroup.getDeleteResourceAction());
    pageSite.getActionBars().setGlobalActionHandler("copy", actionGroup.getCopyResourceAction());

}

From source file:com.nokia.tools.variant.resourcelibrary.views.ResourceLibraryPage.java

License:Open Source License

/**
 * Synchronize resource view selection with the give selection object...
 *///www .j  a  v  a2s. c o m
public void selectionChanged(IWorkbenchPart part, ISelection selection) {
    if (part != contributor) {
        return;
    }

    Object firstElement = ((IStructuredSelection) selection).getFirstElement();
    String sourcePath = null;
    if (firstElement instanceof FilePath) {
        FilePath setting = (FilePath) firstElement;
        FilePath sourceFilePath = setting.getParent().getSourceFilePath();
        if (setting != sourceFilePath) {
            // there was selected target path to which we don't react
            return;
        }
        String choosenOption = sourceFilePath.getChoosenOption();
        if (choosenOption != null) {
            sourcePath = choosenOption;
        } else {
            sourcePath = sourceFilePath.getPath();
            if (sourcePath == null) {
                sourcePath = setting.getParent().getSourceFilePath().getDefaultPath();
            }
        }
    } else if (firstElement instanceof SimpleSetting) {
        SimpleSetting ss = (SimpleSetting) firstElement;
        switch (ss.getType()) {
        case FILE:
        case FOLDER:
        case SIMPLE_FILE:
        case SIMPLE_FOLDER:
            String choosenOption = ss.getChoosenOption();
            if (choosenOption != null) {
                sourcePath = choosenOption;
            } else {
                sourcePath = ss.getValue();
            }
            if (sourcePath == null) {
                sourcePath = ss.getDefaultValue();
            }
        }
    }

    if (sourcePath != null) {
        FileSystemElement element = ResourceUtil.getFileSystemElement((ResourceModelRoot) viewer.getInput(),
                sourcePath);
        if (element != null) {
            viewer.setSelection(new StructuredSelection(element), true);
            viewer.expandToLevel(element, 1);
        } else {
            viewer.setSelection(new StructuredSelection(StructuredSelection.EMPTY), true);
        }
    }
}

From source file:com.nokia.tools.variant.viewer.viewer.SettingsViewer.java

License:Open Source License

/**
 * Deselect all widgets and fire selection changed event
 *///from  w w w . j ava 2  s  . c o m
public void deselectAllWidgets() {
    internalDeselectAllWidgets();
    fireSelectionChanged(new SelectionChangedEvent(SettingsViewer.this, StructuredSelection.EMPTY));
}

From source file:com.nokia.tools.vct.confml.editor.view.ViewsEditor.java

License:Open Source License

private void createContextMenu() {

    final OpenConfMLViewEditor openViewAction = new OpenConfMLViewEditor(this);
    final DeleteAction deleteAction = new DeleteAction(this);
    final RenameAction renameAction = new RenameAction(getCommandStack(), viewTv);
    final AddGroupAction addSubGroupAction = new AddGroupAction(this, GroupType.CHILD_GROUP);
    final AddGroupAction addGroupAction = new AddGroupAction(this, GroupType.SIBLING_GROUP);
    final PropertiesAction propertiesAction = new PropertiesAction(viewTv);
    final ExpandSettingRefAction expandSettingRef = new ExpandSettingRefAction(this);

    final AddPropertyAction addPropertyAction = new AddPropertyAction(this);
    final AddOptionAction addOptionAction = new AddOptionAction(this);

    final MenuManager subMenu = new MenuManager(Messages.Add_new);
    subMenu.addMenuListener(new IMenuListener() {
        public void menuAboutToShow(IMenuManager manager) {
            if (viewTv.getSelection().equals(StructuredSelection.EMPTY)) {
                return;
            }// w ww.  ja  v a 2s  .co m
            TreeItem te = viewTv.getTree().getSelection()[0];
            if (te.getData() instanceof EView) {
                subMenu.removeAll();
                subMenu.add(addSubGroupAction);
                if (te.getParentItem() == null)
                    addSubGroupAction.setEnabled(true);
                else
                    addSubGroupAction.setEnabled(false);
            } else if ((te.getData() instanceof EGroup) && (te.getParentItem().getData() instanceof EView)) {
                subMenu.removeAll();
                subMenu.add(addSubGroupAction);
                subMenu.add(addGroupAction);
                addSubGroupAction.setEnabled(true);

            } else if ((te.getData() instanceof ESettingRef)) {
                subMenu.removeAll();
                manager.add(addOptionAction);
                manager.add(addPropertyAction);
            } else {
                subMenu.removeAll();
                subMenu.add(addGroupAction);
            }
        }
    });
    subMenu.add(addGroupAction);

    MenuManager popupMenu = new MenuManager();
    popupMenu.setRemoveAllWhenShown(true);
    popupMenu.addMenuListener(new IMenuListener() {
        public void menuAboutToShow(IMenuManager manager) {
            if (viewTv.getSelection().equals(StructuredSelection.EMPTY)) {
                return;
            }
            TreeItem te = viewTv.getTree().getSelection()[0];
            if ((te.getData() instanceof EView)) { // View
                manager.removeAll();
                if (isFromRootView((EView) te.getData())) {
                    manager.add(subMenu);
                    manager.add(new Separator());
                } else if (isViewUnderRoot((EView) te.getData())) {
                    manager.add(openViewAction);
                    manager.add(deleteAction);
                } else
                    manager.add(openViewAction);

                manager.add(propertiesAction);
            } else if ((te.getData() instanceof EGroup) // Group
                    && (te.getParentItem().getData() instanceof EView)) {
                manager.removeAll();
                if (isFromRootView((EGroup) te.getData())) {
                    manager.add(subMenu);
                    manager.add(renameAction);
                    manager.add(deleteAction);
                    manager.add(new Separator());
                }
                manager.add(propertiesAction);
            } else if ((te.getData() instanceof EGroup)) { // SubGroup
                manager.removeAll();
                if (isFromRootView((EGroup) te.getData())) {
                    manager.add(subMenu);
                    manager.add(renameAction);
                    manager.add(deleteAction);
                    manager.add(new Separator());
                }
                manager.add(propertiesAction);
            } else if ((te.getData() instanceof ERefOption)) { // Option
                manager.removeAll();
                if (isFromRootView((ERefOption) te.getData())) {
                    manager.add(deleteAction);
                    manager.add(new Separator());
                }
                manager.add(propertiesAction);
            } else if ((te.getData() instanceof ERefProperty)) { // Option
                manager.removeAll();
                if (isFromRootView((ERefProperty) te.getData())) {
                    manager.add(deleteAction);
                    manager.add(new Separator());
                }
                manager.add(propertiesAction);
            } else if ((te.getData() instanceof ESettingRef)) { // Ref
                manager.removeAll();
                if (isFromRootView((ESettingRef) te.getData())) {
                    manager.add(subMenu);
                    manager.add(deleteAction);
                    ESettingRef ref = (ESettingRef) te.getData();
                    if (ref.getSettingId().equals("*")) {
                        manager.add(expandSettingRef);
                    } else {
                    }
                    manager.add(new Separator());
                }
                manager.add(propertiesAction);
            } else { // Setting
                manager.removeAll();
                // manager.add(deleteAction);
                //manager.add(new Separator());
                manager.add(propertiesAction);
            }
        }
    });

    Menu menu = popupMenu.createContextMenu(viewTv.getControl());
    viewTv.getControl().setMenu(menu);
}

From source file:com.pip.propertysheet.PropertySheetViewer.java

License:Open Source License

/**
 * The <code>PropertySheetViewer</code> implementation of this
 * <code>ISelectionProvider</code> method returns the result as a
 * <code>StructuredSelection</code>.
 * <p>/*from w w  w . j  av  a2 s  .  c  om*/
 * Note that this method only includes <code>IPropertySheetEntry</code> in
 * the selection (no categories).
 * </p>
 */
public ISelection getSelection() {
    if (tree.getSelectionCount() == 0) {
        return StructuredSelection.EMPTY;
    }
    TreeItem[] sel = tree.getSelection();
    List entries = new ArrayList(sel.length);
    for (int i = 0; i < sel.length; i++) {
        TreeItem ti = sel[i];
        Object data = ti.getData();
        if (data instanceof IPropertySheetEntry) {
            entries.add(data);
        }
    }
    return new StructuredSelection(entries);
}