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

Introduction

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

Prototype

public int size();

Source Link

Document

Returns the number of elements selected in this selection.

Usage

From source file:ac.soton.eventb.classdiagrams.diagram.part.ClassdiagramsDiagramUpdateCommand.java

License:Open Source License

/**
 * @generated//from   w w w  . j a v  a  2s. c  o  m
 */
public Object execute(ExecutionEvent event) throws ExecutionException {
    ISelection selection = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getSelectionService()
            .getSelection();
    if (selection instanceof IStructuredSelection) {
        IStructuredSelection structuredSelection = (IStructuredSelection) selection;
        if (structuredSelection.size() != 1) {
            return null;
        }
        if (structuredSelection.getFirstElement() instanceof EditPart
                && ((EditPart) structuredSelection.getFirstElement()).getModel() instanceof View) {
            EObject modelElement = ((View) ((EditPart) structuredSelection.getFirstElement()).getModel())
                    .getElement();
            List editPolicies = CanonicalEditPolicy.getRegisteredEditPolicies(modelElement);
            for (Iterator it = editPolicies.iterator(); it.hasNext();) {
                CanonicalEditPolicy nextEditPolicy = (CanonicalEditPolicy) it.next();
                nextEditPolicy.refresh();
            }

        }
    }
    return null;
}

From source file:ac.soton.eventb.classdiagrams.diagram.part.ModelElementSelectionPage.java

License:Open Source License

/**
 * @generated/*  ww  w .  j  a  v  a2  s  . co  m*/
 */
protected void updateSelection(IStructuredSelection selection) {
    selectedModelElement = null;
    if (selection.size() == 1) {
        Object selectedElement = selection.getFirstElement();
        if (selectedElement instanceof IWrapperItemProvider) {
            selectedElement = ((IWrapperItemProvider) selectedElement).getValue();
        }
        if (selectedElement instanceof FeatureMap.Entry) {
            selectedElement = ((FeatureMap.Entry) selectedElement).getValue();
        }
        if (selectedElement instanceof EObject) {
            selectedModelElement = (EObject) selectedElement;
        }
    }
    setPageComplete(validatePage());
}

From source file:ac.soton.eventb.classdiagrams.diagram.sheet.custom.ConstraintsPropertySection.java

License:Open Source License

@Override
protected ISelection getEditorSelection(Object object) {
    DiagramEditor editor = (DiagramEditor) getPart();
    IStructuredSelection selection = (IStructuredSelection) editor.getDiagramGraphicalViewer().getSelection();
    if (selection != null && selection.size() == 1) {
        GraphicalEditPart selectedPart = (GraphicalEditPart) selection.getFirstElement();
        EditPart part = selectedPart.findEditPart(null, (EObject) object);
        if (part != null)
            return new StructuredSelection(part);
        if (selectedPart.getParent() != null) {
            part = ((GraphicalEditPart) selectedPart.getParent()).findEditPart(null, (EObject) object);
            if (part != null)
                return new StructuredSelection(part);
        }// w  w  w .  j a v  a2 s .  c  om
    }
    return null;
}

From source file:ac.soton.eventb.roseEditor.properties.ElementLabelProvider.java

License:Open Source License

/**
 * Determine if a multiple object selection has been passed to the label
 * provider. If the objects is a IStructuredSelection, see if all the
 * objects in the selection are the same and if so, we want to provide
 * labels for the common selected element.
 *
 * @param objects/*from   w  ww.  j ava  2s. c om*/
 *            a single object or a IStructuredSelection.
 * @param multiple
 *            first element in the array is true if there is multiple
 *            unequal selected elements in a IStructuredSelection.
 * @return the object to get labels for.
 */
private Object getObject(final Object objects, final boolean multiple[]) {
    Assert.isNotNull(objects);
    Object object = null;
    if (objects instanceof IStructuredSelection) {
        IStructuredSelection selection = (IStructuredSelection) objects;
        object = selection.getFirstElement();
        if (selection.size() == 1) {
            // one element selected
            multiple[0] = false;
            return object;
        }
        // multiple elements selected
        multiple[0] = true;
        Class<?> firstClass = typeMapper.mapType(object);
        // determine if all the objects in the selection are the same type
        for (Object next : selection.toArray()) {
            //= i.next();
            Class<?> nextClass = typeMapper.mapType(next);
            if (!nextClass.equals(firstClass)) {
                // two elements not equal == multiple selected unequal
                multiple[0] = false;
                object = null;
                break;
            }
        }
    } else {
        multiple[0] = false;
        object = objects;
    }
    return object;
}

From source file:ac.soton.eventb.statemachines.diagram.sheet.custom.InvariantsPropertySection.java

License:Open Source License

@Override
protected ISelection getEditorSelection(Object object) {
    StatemachinesDiagramEditor editor = (StatemachinesDiagramEditor) getPart();
    IStructuredSelection selection = (IStructuredSelection) editor.getDiagramGraphicalViewer().getSelection();
    if (selection != null && selection.size() == 1) {
        GraphicalEditPart selectedPart = (GraphicalEditPart) selection.getFirstElement();
        EditPart part = selectedPart.findEditPart(null, (EObject) object);
        if (part != null)
            return new StructuredSelection(part);
        if (selectedPart.getParent() != null) {
            part = ((GraphicalEditPart) selectedPart.getParent()).findEditPart(null, (EObject) object);
            if (part != null)
                return new StructuredSelection(part);
        }/*from www.  j ava2 s  . c  om*/
    }
    return null;
}

From source file:ac.soton.xeventb.internal.ui.XTextConvertHandler.java

License:Open Source License

/**
 * Get the current only selected object. If more than one objects are
 * selected, return <code>null</code>.
 * /*from  ww  w . j  a va 2 s.  com*/
 * @param event
 *          the execution event
 * @return the only selected object.
 * @throws ExecutionException
 *          if some unexpected error occurs.
 */
private Object getCurrentSelectedObject(final ExecutionEvent event) throws ExecutionException {
    ISelection selection = HandlerUtil.getCurrentSelectionChecked(event);
    if ((selection instanceof IStructuredSelection)) {
        IStructuredSelection ssel = ((IStructuredSelection) selection);
        int _size = ssel.size();
        boolean _tripleEquals = (_size == 1);
        if (_tripleEquals) {
            return ssel.getFirstElement();
        }
    }
    return null;
}

From source file:actions.RenameAction.java

License:Open Source License

public void selectionChanged(IAction action, ISelection selection) {
    selectedObject = null;/*w  w  w. j a va  2  s.  co  m*/
    selectedNameAttribute = null;
    selectedROAttribute = null;
    if (selection instanceof IStructuredSelection) {
        IStructuredSelection structedSelection = (IStructuredSelection) selection;
        if (structedSelection.size() > 0 && ALLOWED_TYPES != null
                && isSupportedType(structedSelection.getFirstElement())) {
            selectedObject = (EObject) structedSelection.getFirstElement();
        }
    }
    if (selectedObject != null && ALLOWED_TYPES != null && !isObjectReadOnly(selectedObject)) {
        action.setEnabled(true);
    } else
        action.setEnabled(false);

}

From source file:algsymboleditor.wizards.NewFencedWizardPage.java

License:Open Source License

/**
 * Checks the current workbench selection for suitability, and then
 * initializes the wizard page.// w  w w.jav a2s  .  c om
 */
private void initialize() {
    if (selection != null && selection.isEmpty() == false && selection instanceof IStructuredSelection) {
        IStructuredSelection ssel = (IStructuredSelection) selection;
        if (ssel.size() > 1)
            return;
        Object obj = ssel.getFirstElement();
        if (obj instanceof IResource) {
            IContainer container;
            if (obj instanceof IContainer)
                container = (IContainer) obj;
            else
                container = ((IResource) obj).getParent();
            containerText.setText(container.getFullPath().toString());
        }
    }
    fileText.setText("new_file.algfenced");
}

From source file:algsymboleditor.wizards.NewQuotientWizardPage.java

License:Open Source License

/**
 * Checks the current workbench selection for suitability, and then
 * initializes the wizard page.//  w  w  w  . j av a  2 s.  c  om
 */
private void initialize() {
    if (selection != null && selection.isEmpty() == false && selection instanceof IStructuredSelection) {
        IStructuredSelection ssel = (IStructuredSelection) selection;
        if (ssel.size() > 1)
            return;
        Object obj = ssel.getFirstElement();
        if (obj instanceof IResource) {
            IContainer container;
            if (obj instanceof IContainer)
                container = (IContainer) obj;
            else
                container = ((IResource) obj).getParent();
            containerText.setText(container.getFullPath().toString());
        }
    }
    fileText.setText("new_file.algquotient");
}

From source file:algsymboleditor.wizards.NewSymbolWizardPage.java

License:Open Source License

/**
 * Checks the current workbench selection for suitability, and then
 * initializes the wizard page./*from   w  ww  . j  av  a  2  s.co  m*/
 */
private void initialize() {
    if (selection != null && selection.isEmpty() == false && selection instanceof IStructuredSelection) {
        IStructuredSelection ssel = (IStructuredSelection) selection;
        if (ssel.size() > 1)
            return;
        Object obj = ssel.getFirstElement();
        if (obj instanceof IResource) {
            IContainer container;
            if (obj instanceof IContainer)
                container = (IContainer) obj;
            else
                container = ((IResource) obj).getParent();
            containerText.setText(container.getFullPath().toString());
        }
    }
    fileText.setText("new_file.algsymbol");
}