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

Introduction

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

Prototype

public Object getFirstElement();

Source Link

Document

Returns the first element in this selection, or null if the selection is empty.

Usage

From source file:com.archimatetool.editor.views.tree.actions.RenameAction.java

License:Open Source License

@Override
public void run() {
    IStructuredSelection selection = getSelection();
    if (selection == null || selection.isEmpty()) {
        return;//from www .ja  va2 s .c o  m
    }

    Object element = selection.getFirstElement();
    if (RenameCommandHandler.canRename(element)) {
        ((TreeModelViewer) getSelectionProvider()).editElement(element);
    }
}

From source file:com.archimatetool.editor.views.tree.actions.RenameAction.java

License:Open Source License

@Override
public void update(IStructuredSelection selection) {
    setEnabled(selection.size() == 1 && RenameCommandHandler.canRename(selection.getFirstElement()));
}

From source file:com.archimatetool.editor.views.tree.actions.SortFolderAction.java

License:Open Source License

@Override
public void update(IStructuredSelection selection) {
    Object selected = selection.getFirstElement();

    if (selected instanceof IFolder) {
        setEnabled(((IFolder) selected).getElements().size() > 1);
    } else {/*from  www . j ava  2  s. c  om*/
        setEnabled(false);
    }
}

From source file:com.archimatetool.editor.views.tree.TreeModelView.java

License:Open Source License

/**
 * Fill context menu when user right-clicks
 * @param manager/* www.  j  av  a  2  s.  c  om*/
 */
private void fillContextMenu(IMenuManager manager) {
    IStructuredSelection selection = ((IStructuredSelection) getViewer().getSelection());
    Object selected = selection.getFirstElement();
    boolean isEmpty = selected == null;

    if (isEmpty) {
        manager.add(fActionNewModel);
        manager.add(fActionOpenModel);
        return;
    }

    MenuManager newMenu = new MenuManager(Messages.TreeModelView_1, "new"); //$NON-NLS-1$
    manager.add(newMenu);

    getSite().registerContextMenu(ID + ".new_menu", newMenu, getViewer()); //$NON-NLS-1$

    manager.add(new Separator());

    // Selected model
    if (selected instanceof IArchimateModel) {
        manager.add(fActionCloseModel);
        manager.add(fActionSaveModel);
        manager.add(new Separator());
    }

    // Selected Diagram
    if (selected instanceof IDiagramModel) {
        manager.add(fActionOpenDiagram);
        manager.add(new Separator("open")); //$NON-NLS-1$
    }

    if (selected instanceof IFolder) {
        newMenu.add(fActionNewFolder);
        newMenu.add(new Separator());
    }

    // Create "New" Actions
    List<IAction> actions = TreeModelViewActionFactory.INSTANCE.getNewObjectActions(selected);
    if (!actions.isEmpty()) {
        for (IAction action : actions) {
            newMenu.add(action);
        }
    }

    newMenu.add(new Separator("new_additions")); //$NON-NLS-1$

    if (!isEmpty) {
        manager.add(new Separator());
        manager.add(fActionDelete);
        manager.add(fActionRename);
        manager.add(new Separator());
        if (DuplicateCommandHandler.canDuplicate(selection)) {
            manager.add(fActionDuplicate);
            manager.add(new Separator());
        }
        manager.add(fActionProperties);
    }

    // Other plug-ins can contribute their actions here
    manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS));
}

From source file:com.archimatetool.editor.views.tree.TreeModelViewerFindReplaceProvider.java

License:Open Source License

/**
 * @return The first selected object in the tree, or null
 *//*from w ww. j  a v a2  s . co m*/
private Object getFirstSelectedObject() {
    IStructuredSelection selection = (IStructuredSelection) fTreeModelViewer.getSelection();
    return selection.getFirstElement();
}

From source file:com.archimatetool.editor.views.tree.TreeModelViewerFindReplaceProvider.java

License:Open Source License

/**
 * @return The model in scope of the selected element
 *///from  w w  w .  ja  va  2s  .  c om
private IArchimateModel getModelInScope() {
    IStructuredSelection selection = (IStructuredSelection) fTreeModelViewer.getSelection();
    Object o = selection.getFirstElement();
    if (o instanceof IArchimateModelObject) {
        return ((IArchimateModelObject) o).getArchimateModel();
    }

    return null;
}

From source file:com.archimatetool.zest.DrillDownManager.java

License:Open Source License

void goInto() {
    IStructuredSelection sel = (IStructuredSelection) fGraphViewer.getSelection();
    IArchimateElement element = (IArchimateElement) sel.getFirstElement();

    if (isValidObject(element)) {
        saveCurrentState();//from   ww  w.  j  a v  a 2s  .c o  m

        fBackStack.push(fCurrentElement);
        fCurrentElement = element;
        setGraphViewerInput(element);

        updateNavigationButtons();

        restoreLastState();

        fView.updateLabel();
    }
}

From source file:com.archimatetool.zest.DrillDownManager.java

License:Open Source License

private void updateNavigationButtons() {
    IStructuredSelection selection = (IStructuredSelection) fGraphViewer.getSelection();
    Object selected = selection.getFirstElement();

    fActionHome.setEnabled(fHomeElement != null && fHomeElement != fCurrentElement);
    fActionBack.setEnabled(!fBackStack.isEmpty());
    fActionGoInto.setEnabled(isValidObject(selected));
}

From source file:com.architexa.diagrams.relo.ui.ReloEditor.java

License:Open Source License

private IResource getSelectedResource() {
    ISelection sel = getSite().getWorkbenchWindow().getSelectionService().getSelection();
    if (sel instanceof IStructuredSelection) {
        IStructuredSelection ss = (IStructuredSelection) sel;
        Object first = ss.getFirstElement();
        if (first instanceof IResource) {
            return (IResource) first;
        } else if (first instanceof IAdaptable) {
            Object res = ((IAdaptable) first).getAdapter(IResource.class);
            if (res != null)
                return (IResource) res;
        }//from   w w w  . j  a va  2  s .c  o  m
    }

    return null;
}

From source file:com.architexa.org.eclipse.gef.ui.actions.CopyTemplateAction.java

License:Open Source License

/**
 * Sets the selected EditPart and refreshes the enabled state of this action.
 * //from  w  w w .  j a  va2 s.c  o  m
 * @see ISelectionChangedListener#selectionChanged(SelectionChangedEvent)
 */
public void selectionChanged(SelectionChangedEvent event) {
    ISelection s = event.getSelection();
    if (!(s instanceof IStructuredSelection))
        return;
    IStructuredSelection selection = (IStructuredSelection) s;
    template = null;
    if (selection != null && selection.size() == 1) {
        Object obj = selection.getFirstElement();
        if (obj instanceof EditPart) {
            Object model = ((EditPart) obj).getModel();
            if (model instanceof CombinedTemplateCreationEntry)
                template = ((CombinedTemplateCreationEntry) model).getTemplate();
            else if (model instanceof PaletteTemplateEntry)
                template = ((PaletteTemplateEntry) model).getTemplate();
        }
    }
    refresh();
}