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.iw.plugins.spindle.ui.properties.SearchForLibraryWidget.java

License:Mozilla Public License

public ISelection getSelection() {
    IStructuredSelection selection = (IStructuredSelection) super.getSelection();
    if (selection == null || selection.isEmpty()) {
        return selection;
    }//w  w w .  ja  v a2s . c om
    Object[] selectionData = selection.toArray();

    String name = (String) selectionData[0];
    IPackageFragment fragment = (IPackageFragment) selectionData[1];

    String elementName = fragment.getElementName();
    if (elementName == null || elementName.trim().length() == 0) {
        fResultString = "/" + name;
    } else {
        fResultString = "/" + elementName.replace('.', '/') + "/" + name;
    }
    return new StructuredSelection(fResultString);
}

From source file:com.iw.plugins.spindle.ui.propertysheet.CopyPropertyAction.java

License:Open Source License

/**
 * Performs this action.//from   w ww  .j  a  v  a2 s  . c  o  m
 */
public void run() {
    // Get the selected property
    IStructuredSelection selection = (IStructuredSelection) getPropertySheet().getSelection();
    if (selection.isEmpty())
        return;
    // Assume single selection
    IPropertySheetEntry entry = (IPropertySheetEntry) selection.getFirstElement();

    // Place text on the clipboard
    StringBuffer buffer = new StringBuffer();
    buffer.append(entry.getDisplayName());
    buffer.append("\t"); //$NON-NLS-1$
    buffer.append(entry.getValueAsString());

    Object[] data = new Object[] { buffer.toString() };
    Transfer[] transferTypes = new Transfer[] { TextTransfer.getInstance() };
    clipboard.setContents(data, transferTypes);
}

From source file:com.iw.plugins.spindle.ui.propertysheet.CopyPropertyAction.java

License:Open Source License

/** 
 * Updates enablement based on the current selection
 */
public void selectionChanged(IStructuredSelection sel) {
    setEnabled(!sel.isEmpty());
}

From source file:com.iw.plugins.spindle.ui.propertysheet.PropertySheetPage.java

License:Open Source License

public void createControl(Composite parent) {
    // create a new viewer
    viewer = new PropertySheetViewer(parent);

    // set the model for the viewer
    if (rootEntry == null) {
        // create a new root
        PropertySheetEntry root = new PropertySheetEntry();
        if (provider != null)
            // set the property source provider
            root.setPropertySourceProvider(provider);
        rootEntry = root;/*  www.java 2  s .com*/
    }
    viewer.setRootEntry(rootEntry);
    viewer.addActivationListener(getCellEditorActivationListener());
    // add a listener to track when the entry selection changes
    viewer.addSelectionChangedListener(new ISelectionChangedListener() {
        public void selectionChanged(SelectionChangedEvent event) {
            handleEntrySelection((IStructuredSelection) event.getSelection());
        }
    });
    initDragAndDrop();

    // Create the popup menu for the page.
    copyAction = new CopyPropertyAction(viewer, "copy"); //$NON-NLS-1$
    copyAction.setImageDescriptor(getImageDescriptor("etool16/copy_edit.gif")); //$NON-NLS-1$
    copyAction.setHoverImageDescriptor(getImageDescriptor("ctool16/copy_edit.gif")); //$NON-NLS-1$

    MenuManager menuMgr = new MenuManager("#PopupMenu"); //$NON-NLS-1$
    menuMgr.add(copyAction);
    Menu menu = menuMgr.createContextMenu(viewer.getControl());
    viewer.getControl().setMenu(menu);

    // Set help on the viewer 
    viewer.getControl().addHelpListener(new HelpListener() {
        /*
         * @see HelpListener#helpRequested(HelpEvent)
         */
        public void helpRequested(HelpEvent e) {
            String contextId = null;

            // Get the context for the selected item
            IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
            if (!selection.isEmpty()) {
                IPropertySheetEntry entry = (IPropertySheetEntry) selection.getFirstElement();
                Object helpContextId = entry.getHelpContextIds();
                if (helpContextId != null) {
                    if (helpContextId instanceof String) {
                        WorkbenchHelp.displayHelp((String) helpContextId);
                        return;
                    }

                    // Since 2.0 the only valid type for helpContextIds
                    // is a String (a single id).
                    // However for backward compatibility we have to handle
                    // and array of contexts (Strings and/or IContexts) 
                    // or a context computer.
                    Object[] contexts = null;
                    if (helpContextId instanceof IContextComputer) {
                        // get local contexts
                        contexts = ((IContextComputer) helpContextId).getLocalContexts(e);
                    } else {
                        contexts = (Object[]) helpContextId;
                    }
                    // Ignore all but the first element in the array
                    if (contexts[0] instanceof IContext)
                        WorkbenchHelp.displayHelp((IContext) contexts[0]);
                    else
                        WorkbenchHelp.displayHelp((String) contexts[0]);
                    return;
                }
            }

            // No help for the selection so show page help
            WorkbenchHelp.displayHelp(HELP_CONTEXT_PROPERTY_SHEET_PAGE);
        }
    });
}

From source file:com.iw.plugins.spindle.ui.propertysheet.PropertySheetPage.java

License:Open Source License

/**
 * The user is attempting to drag.  Add the appropriate
 * data to the event./*from  w  ww  .  ja  va2 s. c  o  m*/
 */
void performDragSetData(DragSourceEvent event) {
    // Get the selected property
    IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
    if (selection.isEmpty())
        return;
    // Assume single selection
    IPropertySheetEntry entry = (IPropertySheetEntry) selection.getFirstElement();

    // Place text as the data
    StringBuffer buffer = new StringBuffer();
    buffer.append(entry.getDisplayName());
    buffer.append("\t"); //$NON-NLS-1$
    buffer.append(entry.getValueAsString());

    event.data = buffer.toString();
}

From source file:com.iw.plugins.spindle.ui.widgets.TypeChooserWidget.java

License:Mozilla Public License

public ISelection getSelection() {
    IStructuredSelection selection = (IStructuredSelection) super.getSelection();
    if (selection == null || selection.isEmpty()) {
        return selection;
    }/* w ww  .  jav  a2s .c  o m*/
    Object[] selectionData = selection.toArray();

    String name = (String) selectionData[0];
    IPackageFragment fragment = (IPackageFragment) selectionData[1];

    fResultType = (IType) fragment.getCompilationUnit(name);
    if (fResultType == null)
        fResultType = (IType) fragment.getClassFile(name);
    return new StructuredSelection(fResultType);
}

From source file:com.iw.plugins.spindle.ui.wizards.NewTapestryElementWizard.java

License:Mozilla Public License

protected IResource getInitResource() {
    IStructuredSelection selection = getSelection();
    IResource resource = null;/*  w  ww .  j a va  2  s  . c  o  m*/
    if (selection != null && !selection.isEmpty()) {
        Object selectedElement = selection.getFirstElement();
        if (selectedElement instanceof IAdaptable) {
            IAdaptable adaptable = (IAdaptable) selectedElement;
            resource = (IResource) adaptable.getAdapter(IResource.class);
        }
    }
    if (resource == null)
        resource = UIPlugin.getActiveEditorFileInput();
    return resource;
}

From source file:com.iw.plugins.spindle.ui.wizards.NewTapestryElementWizard.java

License:Mozilla Public License

protected IJavaElement getInitJavaElement() {
    IStructuredSelection selection = getSelection();
    IJavaElement jelem = null;//from   w  w w .ja  v a  2  s.  com

    if (selection != null && !selection.isEmpty()) {
        Object selectedElement = selection.getFirstElement();
        if (selectedElement instanceof IAdaptable) {
            IAdaptable adaptable = (IAdaptable) selectedElement;

            jelem = (IJavaElement) adaptable.getAdapter(IJavaElement.class);
            if (jelem == null) {
                IResource resource = (IResource) adaptable.getAdapter(IResource.class);
                if (resource != null) {
                    jelem = (IJavaElement) ((IAdaptable) resource.getParent()).getAdapter(IJavaElement.class);
                    if (jelem == null) {
                        IProject proj = resource.getProject();
                        if (proj != null)
                            jelem = JavaCore.create(proj);
                    }
                }
            }
        }
    }
    if (jelem == null)
        jelem = UIPlugin.getActiveEditorJavaInput();

    return jelem;
}

From source file:com.iw.plugins.spindle.ui.wizards.source.MoveImplicitAttributesPage.java

License:Mozilla Public License

public void createControl(Composite parent) {

    Composite container = new Composite(parent, SWT.NULL);
    GridLayout layout = new GridLayout();
    layout.marginHeight = 0;/*  ww w .ja v a2  s .  co  m*/
    layout.numColumns = 2;
    layout.makeColumnsEqualWidth = false;
    container.setLayout(layout);
    GridData gd;

    Control simpleIdControl = fTemplateComponentId.getControl(container);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    gd.horizontalSpan = 2;
    simpleIdControl.setLayoutData(gd);
    fTemplateComponentId.setTextValue(fInitialTemplateComponentId == null ? "" : fInitialTemplateComponentId);

    Composite leftColumn = new Composite(container, SWT.NULL);
    gd = new GridData(GridData.FILL_BOTH);
    gd.widthHint = convertWidthInCharsToPixels(30);
    leftColumn.setLayoutData(gd);
    GridLayout leftLayout = new GridLayout();
    leftLayout.verticalSpacing = 10;
    leftLayout.marginWidth = 0;
    leftColumn.setLayout(leftLayout);
    Composite rightColumn = new Composite(container, SWT.NULL);
    gd = new GridData(GridData.FILL_BOTH);
    rightColumn.setLayoutData(gd);
    GridLayout rightLayout = new GridLayout();
    rightLayout.verticalSpacing = 10;
    rightLayout.marginWidth = 0;
    rightColumn.setLayout(rightLayout);
    AttributesThatStaySection allSection = new AttributesThatStaySection("Attibutes that stay");
    Control allSectionControl = allSection.createControl(leftColumn);
    gd = new GridData(GridData.FILL_BOTH);
    allSectionControl.setLayoutData(gd);
    AttributesThatMoveSection pageSection = new AttributesThatMoveSection("Attributes that move");
    Control pageSectionControl = pageSection.createControl(rightColumn);
    gd = new GridData(GridData.FILL_BOTH);
    pageSectionControl.setLayoutData(gd);
    fAttributesThatStayViewer.setContentProvider(new IStructuredContentProvider() {
        public Object[] getElements(Object inputElement) {
            return fAttributesThatStay.toArray();
        }

        public void dispose() {
        }

        public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
        }
    });
    fAttributesThatStayViewer.setLabelProvider(new AttributesLabelProvider());
    fAttributesThatStayViewer.addSelectionChangedListener(new ISelectionChangedListener() {
        public void selectionChanged(SelectionChangedEvent event) {
            updateButtonsEnabled();
        }
    });
    fAttributesThatStayViewer.addDoubleClickListener(new IDoubleClickListener() {
        public void doubleClick(DoubleClickEvent event) {

            IStructuredSelection selection = (IStructuredSelection) fAttributesThatStayViewer.getSelection();
            if (!selection.isEmpty()) {
                handleLeftRightChange(fAttributesThatStayViewer, selection.getFirstElement());
            }
        }
    });
    fAttributesThatMoveViewer.setContentProvider(new IStructuredContentProvider() {
        public Object[] getElements(Object inputElement) {
            return fAttributesThatMove.toArray();
        }

        public void dispose() {
        }

        public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
        }
    });
    fAttributesThatMoveViewer.setLabelProvider(new BindingsLabelProvider());
    fAttributesThatMoveViewer.addSelectionChangedListener(new ISelectionChangedListener() {
        public void selectionChanged(SelectionChangedEvent event) {
            updateButtonsEnabled();
        }
    });
    fAttributesThatMoveViewer.addDoubleClickListener(new IDoubleClickListener() {
        public void doubleClick(DoubleClickEvent event) {
            IStructuredSelection selection = (IStructuredSelection) fAttributesThatMoveViewer.getSelection();
            if (!selection.isEmpty()) {
                handleLeftRightChange(fAttributesThatMoveViewer, selection.getFirstElement());
            }
        }
    });

    createUpDownButtons(container);

    fAttributesThatStayViewer.setInput(fAttributesThatStay);
    fAttributesThatMoveViewer.setInput(fAttributesThatMove);
    updateButtonsEnabled();
    setControl(container);
}

From source file:com.iw.plugins.spindle.ui.wizards.source.MoveImplicitAttributesPage.java

License:Mozilla Public License

private void handleLeftRightChange(Viewer fromViewer, Object changeObject) {

    IStructuredSelection selection = null;
    if (changeObject instanceof ISelection) {

        selection = (IStructuredSelection) changeObject;
    } else {/* w ww.  j  a  v a2 s .c  o m*/

        selection = new StructuredSelection(changeObject);
    }

    List fromList = null;
    List toList = null;
    TableViewer toViewer = null;
    if (fromViewer == fAttributesThatStayViewer) {

        fromList = fAttributesThatStay;
        toList = fAttributesThatMove;
        toViewer = fAttributesThatMoveViewer;
    } else {

        fromList = fAttributesThatMove;
        toList = fAttributesThatStay;
        toViewer = fAttributesThatStayViewer;
    }

    if (!selection.isEmpty()) {

        List selectedObjects = selection.toList();
        fromList.removeAll(selectedObjects);
        toList.addAll(selectedObjects);
        fromViewer.setInput(fromList);
        toViewer.setInput(toViewer);
        toViewer.getControl().setFocus();
        toViewer.setSelection(selection);
    }
    updateButtonsEnabled();
    updateStatus();
}