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

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

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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.mentor.nucleus.bp.ui.graphics.actions.CanvasCopyAction.java

License:Open Source License

public static Object getImageDataForSelection(GraphicalEditor editor) {
    //// w w w . j a v a2  s  .  co  m
    // Compute the required height and width to render
    boolean considerAll = false;
    IStructuredSelection selection = (IStructuredSelection) editor.getSite().getSelectionProvider()
            .getSelection();
    if (!selection.isEmpty()) {
        if (selection.size() == 1 && selection.getFirstElement() instanceof DiagramEditPart) {
            // treat this as no selection
            considerAll = true;
        }
    }

    List<GraphicalEditPart> symbols = new ArrayList<GraphicalEditPart>();
    if (considerAll) {
        symbols = GraphicalEditor.getAllSymbols((GraphicalViewer) editor.getAdapter(GraphicalViewer.class),
                editor.getModel().Hascontainersymbol());
    } else {
        for (Iterator<?> iterator = selection.iterator(); iterator.hasNext();) {
            Object next = iterator.next();
            if (next instanceof GraphicalEditPart) {
                if (next instanceof DiagramEditPart)
                    continue;
                else
                    symbols.add((GraphicalEditPart) next);
            }
        }
    }

    Rectangle extentRectangle = GraphicalZoomManager.getExtentRectangle(symbols);

    //
    // Set up the canvas for drawing.
    Rectangle client = new Rectangle(extentRectangle.x, extentRectangle.y, extentRectangle.width,
            extentRectangle.height);

    Image canvasImage = new Image(editor.getCanvas().getDisplay(),
            new org.eclipse.swt.graphics.Rectangle(client.x, client.y, client.width, client.height));
    GraphicalViewer viewer = (GraphicalViewer) editor.getAdapter(GraphicalViewer.class);
    PrintDiagramOperation.printImage(canvasImage, viewer, extentRectangle,
            editor.getModel().Hascontainersymbol(), PrintDiagramOperation.NO_FIT);

    return canvasImage.getImageData();
}

From source file:com.mentor.nucleus.bp.ui.graphics.editor.GraphicalEditor.java

License:Open Source License

/**
 * Fire up an editor/*from  w  w w .  ja  v a2  s.c  o  m*/
 */
public static void handleOpen(Point location, Model_c model, IStructuredSelection selection) {
    if (!selection.isEmpty()) {
        Object current = selection.iterator().next();
        if (current instanceof EditPart) {
            current = ((EditPart) current).getModel();
            if (current instanceof FloatingText_c) {
                FloatingText_c text = (FloatingText_c) current;
                Connector_c connector = Connector_c.getOneGD_CONOnR8(text);
                if (connector != null)
                    current = connector;
                Shape_c shape = Shape_c.getOneGD_SHPOnR27(text);
                if (shape != null)
                    current = shape;
            }
            if (current instanceof Model_c) {
                current = ((Model_c) current).getRepresents();
            } else if (current instanceof Shape_c) {
                GraphicalElement_c elem = GraphicalElement_c.getOneGD_GEOnR2((Shape_c) current);
                current = elem.getRepresents();
            } else if (current instanceof Connector_c) {
                GraphicalElement_c elem = GraphicalElement_c.getOneGD_GEOnR2((Connector_c) current);
                current = elem.getRepresents();
            }
        }

        // if a mouse event was given, and the selected element is a
        // model-class
        if (location != null && current instanceof ModelClass_c) {
            // find the graphical element that represents the selected
            // model-class
            final Object finalCurrent = current;
            GraphicalElement_c element = GraphicalElement_c.GraphicalElementInstance(model.getModelRoot(),
                    new ClassQueryInterface_c() {
                        public boolean evaluate(Object candidate) {
                            return ((GraphicalElement_c) candidate).getRepresents() == finalCurrent;
                        }
                    });

            // ask the shape associated with the above graphical-element
            // what
            // the mouse-event represents a double-click on, since the shape
            // may be displaying an icon which is a link to a different
            // model
            // element
            Shape_c shape = Shape_c.getOneGD_SHPOnR2(element);
            Graphelement_c graphElement = Graphelement_c.getOneDIM_GEOnR23(element);
            current = shape.Getrepresents((int) (location.x - graphElement.getPositionx()),
                    (int) (location.y - graphElement.getPositiony()));
        }

        // see if the current element should open
        // something other than itself
        current = EditorUtil.getElementToEdit(current);

        String name = current.getClass().getName();
        //
        // Get the registry
        //
        IExtensionRegistry reg = Platform.getExtensionRegistry();
        //
        // Get all the plugins that have extended this point
        //
        IExtensionPoint extPt = reg.getExtensionPoint("com.mentor.nucleus.bp.core.editors"); //$NON-NLS-1$
        IExtension[] exts = extPt.getExtensions();
        // Repeat for each extension until we find a default editor
        for (int i = 0; i < exts.length; i++) {
            IConfigurationElement[] elems = exts[i].getConfigurationElements();
            for (int j = 0; j < elems.length; j++) {
                // Find the editor elements
                if (elems[j].getName().equals("editor")) { //$NON-NLS-1$
                    IConfigurationElement[] edElems = elems[j].getChildren();
                    for (int k = 0; k < edElems.length; k++) {
                        //
                        // Is this editor the default for the current model
                        // element ?
                        //
                        if (edElems[k].getName().equals("defaultFor") && //$NON-NLS-1$
                                edElems[k].getAttribute("class").equals(name)) {
                            try {
                                //
                                // Get the class supplied for the input
                                //
                                // always use this bundle, other graphical
                                // plug-ins
                                // will provide their own open method
                                Bundle bundle = Platform.getBundle(elems[j].getContributor().getName());
                                Class<?> inputClass = bundle.loadClass(elems[j].getAttribute("input")); //$NON-NLS-1$
                                Class<?>[] type = new Class[1];
                                type[0] = Object.class;
                                //
                                // Dynamically get the method
                                // createInstance, the supplied class must
                                // implement this
                                //
                                Method createInstance = inputClass.getMethod("createInstance", type); //$NON-NLS-1$
                                Object[] args = new Object[1];
                                args[0] = current;

                                //
                                // Invoke the method.
                                // The method is static; no instance is
                                // needed, so first argument is null
                                //
                                IEditorInput input = (IEditorInput) createInstance.invoke(null, args);
                                //
                                // pass the input to the Eclipse editor,
                                // along with the class name supplied by
                                // the extending plugin.
                                //
                                if (input != null) {
                                    PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage()
                                            .openEditor(input, elems[j].getAttribute("class")); //$NON-NLS-1$
                                }
                                return;
                            } catch (ClassNotFoundException e) {
                                CanvasPlugin.logError("Input Class not found", e); //$NON-NLS-1$
                            } catch (NoSuchMethodException e) {
                                CanvasPlugin.logError("Class does not implement static method createInstance", //$NON-NLS-1$
                                        e);
                            } catch (InvocationTargetException e) {
                                CanvasPlugin.logError(
                                        "Exception occured on invocation of static method createInstance of the Target", //$NON-NLS-1$
                                        e.getTargetException());
                            } catch (IllegalAccessException e) {
                                CanvasPlugin.logError("Target does not support static method createInstance", //$NON-NLS-1$
                                        e);
                            } catch (PartInitException e) {
                                CanvasPlugin.logError("Could not activate Editor", e); //$NON-NLS-1$
                            }
                        }
                    }
                }
            }
        }
    }
}

From source file:com.mentor.nucleus.bp.ui.graphics.outline.GraphicalOutlinePage.java

License:Open Source License

/**
 * Fire up an editor//from   w w  w.j ava 2s  .co  m
 */
private void handleOpen() {
    IStructuredSelection sel = Selection.getInstance().getStructuredSelection();
    if (sel.isEmpty()) {
        return;
    }
    Object current = (sel).iterator().next();
    String name = current.getClass().getName();

    // see if the current element should open
    // something other than itself
    current = EditorUtil.getElementToEdit(current);
    //
    // Get the registry
    //
    IExtensionRegistry reg = Platform.getExtensionRegistry();
    //
    // Get all the plugins that have extended this point
    //
    IExtensionPoint extPt = reg.getExtensionPoint("com.mentor.nucleus.bp.core.editors");
    IExtension[] exts = extPt.getExtensions();
    // Repeat for each extension until we find a default editor
    for (int i = 0; i < exts.length; i++) {
        IConfigurationElement[] elems = exts[i].getConfigurationElements();
        for (int j = 0; j < elems.length; j++) {
            // Find the editor elements
            if (elems[j].getName().equals("editor")) {
                IConfigurationElement[] edElems = elems[j].getChildren();
                for (int k = 0; k < edElems.length; k++) {
                    //
                    // Is this editor the default for the current model
                    // element ?
                    //
                    if (edElems[k].getName().equals("defaultFor")
                            && edElems[k].getAttribute("class").equals(name)) {
                        try {
                            //
                            // Get the class supplied for the input
                            //
                            Bundle bundle = Platform
                                    .getBundle(elems[j].getDeclaringExtension().getNamespaceIdentifier());
                            Class<?> inputClass = bundle.loadClass(elems[j].getAttribute("input")); //$NON-NLS-1$
                            Class<?>[] type = new Class[1];
                            type[0] = Object.class;
                            //
                            // Dynamically get the method createInstance,
                            // the supplied class must implement this
                            //
                            Method createInstance = inputClass.getMethod("createInstance", type); //$NON-NLS-1$
                            Object[] args = new Object[1];
                            args[0] = current;
                            //
                            // Invoke the method.
                            // The method is static; no instance is needed,
                            // so first argument is null
                            //
                            IEditorInput input = (IEditorInput) createInstance.invoke(null, args);
                            //
                            // pass the input to the Eclipse editor, along
                            // with the class name supplied by
                            // the extending plugin.
                            //
                            if (input != null) {
                                PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage()
                                        .openEditor(input, elems[j].getAttribute("class")); //$NON-NLS-1$
                            }
                            return;
                        } catch (ClassNotFoundException e) {
                            CanvasPlugin.logError("Input Class not found", e); //$NON-NLS-1$
                        } catch (NoSuchMethodException e) {
                            CanvasPlugin.logError("Class does not implement static method createInstance", e); //$NON-NLS-1$
                        } catch (InvocationTargetException e) {
                            CanvasPlugin.logError(
                                    "Exception occured on invocation of static method createInstance of the Target", //$NON-NLS-1$
                                    e.getTargetException());
                        } catch (IllegalAccessException e) {
                            CanvasPlugin.logError("Target does not support static method createInstance", e); //$NON-NLS-1$
                        } catch (PartInitException e) {
                            CanvasPlugin.logError("Could not activate Editor", e); //$NON-NLS-1$
                        }
                    }
                }
            }
        }
    }
}

From source file:com.mentor.nucleus.bp.ui.graphics.providers.CanvasEditorContextMenuProvider.java

License:Open Source License

public static boolean enableDelete(IStructuredSelection graphicalSelection) {

    boolean enableDel = false;
    List<Object> elements = new ArrayList<Object>();
    IStructuredSelection selection = Selection.getInstance().getStructuredSelection();

    if (!selection.isEmpty()) {
        if (graphicalSelection.getFirstElement() instanceof DiagramEditPart)
            return false;
        enableDel = true;//from  w w w.j  av a2s.  c  o  m
        // Iterate through removing elements that are only graphical
        for (Iterator<?> iter = selection.iterator(); iter.hasNext();) {
            Object current = iter.next();
            if (current instanceof GraphicalElement_c) {
                GraphicalElement_c ge = (GraphicalElement_c) current;
                if (ge.getRepresents() == null) {
                    elements.add(current);
                    Selection.getInstance().removeFromSelection(ge);
                }
            }
        }
    }

    selection = Selection.getInstance().getStructuredSelection();
    if (!selection.isEmpty()) {
        // Check the remaining items against the usual DeleteAction,
        enableDel = DeleteAction.canDeleteAction();
    }

    // Add the graphical only elements back to the selection
    for (int i = 0; i < elements.size(); ++i) {
        Selection.getInstance().addToSelection(elements.get(i));
    }

    return enableDel;

}

From source file:com.mercatis.lighthouse3.ui.environment.handlers.CollapseAllHandler.java

License:Apache License

public Object execute(ExecutionEvent event) throws ExecutionException {

    CommonNavigator navigator = (CommonNavigator) HandlerUtil.getActivePart(event);

    ISelection selection = HandlerUtil.getCurrentSelection(event);
    if (selection == null || !(selection instanceof IStructuredSelection))
        return null;

    IStructuredSelection structuredSelection = (IStructuredSelection) selection;

    if (!structuredSelection.isEmpty()) {
        navigator.getCommonViewer().collapseToLevel(structuredSelection.getFirstElement(),
                AbstractTreeViewer.ALL_LEVELS);
    }/*from   ww  w  .  j  av  a  2s  .c  om*/
    return null;
}

From source file:com.mercatis.lighthouse3.ui.environment.handlers.ExpandAllHandler.java

License:Apache License

public Object execute(ExecutionEvent event) throws ExecutionException {

    CommonNavigator navigator = (CommonNavigator) HandlerUtil.getActivePart(event);

    ISelection selection = HandlerUtil.getCurrentSelection(event);
    if (selection == null || !(selection instanceof IStructuredSelection))
        return null;

    IStructuredSelection structuredSelection = (IStructuredSelection) selection;

    if (!structuredSelection.isEmpty()) {
        navigator.getCommonViewer().expandToLevel(structuredSelection.getFirstElement(),
                AbstractTreeViewer.ALL_LEVELS);
    }//from  w w w  . java 2 s  .com
    return null;
}

From source file:com.microsoft.tfs.client.common.ui.framework.diagnostics.ui.DataProviderTreeControl.java

License:Open Source License

public DataProviderTreeControl(final Composite parent, final int style,
        final DataProviderCollection dataProviderCollection) {
    super(parent, style);

    final FormLayout layout = new FormLayout();
    layout.marginWidth = 0;/*from  w  w  w. j a  va  2s  .  c o  m*/
    layout.marginHeight = 0;
    setLayout(layout);

    final Sash sash = new Sash(this, SWT.VERTICAL);
    FormData data = new FormData();
    data.top = new FormAttachment(0, 0);
    data.bottom = new FormAttachment(100, 0);
    data.left = new FormAttachment(33, 0);
    sash.setLayoutData(data);

    sash.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetSelected(final SelectionEvent e) {
            ((FormData) sash.getLayoutData()).left = new FormAttachment(0, e.x);
            sash.getParent().layout();
        }
    });

    treeViewer = new TreeViewer(this, SWT.BORDER);
    data = new FormData();
    data.left = new FormAttachment(0, 0);
    data.top = new FormAttachment(0, 0);
    data.bottom = new FormAttachment(100, 0);
    data.right = new FormAttachment(sash, 0, SWT.LEFT);
    treeViewer.getTree().setLayoutData(data);

    treeViewer.addSelectionChangedListener(new ISelectionChangedListener() {
        @Override
        public void selectionChanged(final SelectionChangedEvent event) {
            final IStructuredSelection selection = (IStructuredSelection) event.getSelection();
            if (!selection.isEmpty() && selection.getFirstElement() instanceof DataProviderWrapper) {
                final DataProviderWrapper dataProvider = (DataProviderWrapper) selection.getFirstElement();
                outputControl.setData(dataProvider);
            } else {
                outputControl.setData(null);
            }
        }
    });

    outputControl = new DataProviderOutputControl(this, SWT.NONE);
    data = new FormData();
    data.left = new FormAttachment(sash, 0, SWT.RIGHT);
    data.top = new FormAttachment(treeViewer.getTree(), 0, SWT.TOP);
    data.right = new FormAttachment(100, 0);
    data.bottom = new FormAttachment(100, 0);
    outputControl.setLayoutData(data);

    treeViewer.setContentProvider(new ContentProvider());
    treeViewer.setLabelProvider(new LabelProvider());

    treeViewer.setInput(dataProviderCollection);

    treeViewer.setExpandedElements(dataProviderCollection.getSortedCategories());
}

From source file:com.mobilesorcery.sdk.testing.internal.ui.UnittestView.java

License:Open Source License

void handleMenuAboutToShow(IMenuManager manager) {
    IStructuredSelection selection = (IStructuredSelection) testRun.getSelectionProvider().getSelection();
    ITestSession session = testRun.getTestSession();

    if (session instanceof IRelaunchableTestSession) {
        manager.add(new RerunAction());
        manager.add(new Separator());
    }//w w  w  . j  a  v  a  2s . c  o m

    if (!selection.isEmpty()) {
        ITest testElement = (ITest) selection.getFirstElement();

        gotoLineAction.setSelection(selection);
        manager.add(gotoLineAction);

        if (session.getTestCount() > 0) {
            manager.add(new ExpandAllAction());
        }

    }

    manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS));
    manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS + "-end")); //$NON-NLS-1$
}

From source file:com.mountainminds.eclemma.internal.ui.coverageview.CopyAction.java

License:Open Source License

public void selectionChanged(IStructuredSelection selection) {
    setEnabled(!selection.isEmpty());
}

From source file:com.nabsys.nabeeplus.editors.ServerConfigEditor.java

private void genButtonSelectionListener() {
    btnSelection = new SelectionListener() {

        public void widgetSelected(SelectionEvent e) {
            if (e.widget == btnAddProtocol) {
                if (((Protocol) protocolTable.getInput()).getChildren().size() > 0
                        && ((Protocol) ((Protocol) protocolTable.getInput()).getChildren()
                                .get(((Protocol) protocolTable.getInput()).getChildren().size() - 1)).getID()
                                        .equals("New"))
                    return;

                new Protocol(protocolRoot, "New");
                protocolTable.refresh();

                setSendMessage("U", "PCL", "ID", "New", "New", null);
                setSendMessage("U", "PCL", "NAME", "New", "", null);
                setSendMessage("U", "PCL", "CLASS", "New", "", null);

                isModified = true;// w w w.  j av a2  s.c  o m
                firePropertyChange(PROP_DIRTY);
            } else if (e.widget == btnDelProtocol) {
                if (IMessageBox.Confirm(shell, NBLabel.get(0x0092)) == SWT.CANCEL) {
                    return;
                }

                IStructuredSelection selection = (IStructuredSelection) protocolTable.getSelection();

                if (selection.isEmpty())
                    return;

                Protocol protocol = ((Protocol) selection.getFirstElement());
                setSendMessage("D", "PCL", "", protocol.getID(), "", null);
                protocol.remove();
                protocolTable.refresh();

                isModified = true;
                firePropertyChange(PROP_DIRTY);
            } else if (e.widget == btnAddPlugin) {
                if (((Plugin) pluginTable.getInput()).getChildren().size() > 0
                        && ((Plugin) ((Plugin) pluginTable.getInput()).getChildren()
                                .get(((Plugin) pluginTable.getInput()).getChildren().size() - 1)).getID()
                                        .equals("New"))
                    return;

                Plugin tmp = new Plugin(pluginRoot, "New");
                tmp.setPluginType(PluginTypeArray.OTHER);
                pluginTable.refresh();

                setSendMessage("U", "PLG", "ID", "New", "New", null);
                setSendMessage("U", "PLG", "NAME", "New", "", null);
                setSendMessage("U", "PLG", "TYPE", "New", "OTHER", null);

                isModified = true;
                firePropertyChange(PROP_DIRTY);
            } else if (e.widget == btnDelPlugin) {
                if (IMessageBox.Confirm(shell, NBLabel.get(0x0092)) == SWT.CANCEL) {
                    return;
                }

                IStructuredSelection selection = (IStructuredSelection) pluginTable.getSelection();

                if (selection.isEmpty())
                    return;

                Plugin plugin = ((Plugin) selection.getFirstElement());
                setSendMessage("D", "PLG", "", plugin.getID(), "", null);
                plugin.remove();
                pluginTable.refresh();

                paramRoot.getChildren().removeAll(paramRoot.getChildren());
                paramTable.refresh();

                isModified = true;
                firePropertyChange(PROP_DIRTY);
            } else if (e.widget == btnAddParam) {
                if (paramTable.getData("PID") == null || ((String) paramTable.getData("PID")).equals("")) {
                    IMessageBox.Error(shell, NBLabel.get(0x0184));
                    return;
                }

                if (((Param) paramTable.getInput()).getChildren().size() > 0
                        && ((Param) ((Param) paramTable.getInput()).getChildren()
                                .get(((Param) paramTable.getInput()).getChildren().size() - 1)).getID()
                                        .equals("New"))
                    return;

                new Param(paramRoot, "New");
                paramTable.refresh();

                setSendMessage("U", "PRM", "ID", "New", "New", (String) paramTable.getData("PID"));
                setSendMessage("U", "PRM", "VALUE", "New", "", (String) paramTable.getData("PID"));

                HashMap<String, String> tmpParam = paramMap.get((String) paramTable.getData("PID"));
                tmpParam.put("New", "");

                isModified = true;
                firePropertyChange(PROP_DIRTY);
            } else if (e.widget == btnDelParam) {
                if (IMessageBox.Confirm(shell, NBLabel.get(0x0092)) == SWT.CANCEL) {
                    return;
                }

                IStructuredSelection selection = (IStructuredSelection) paramTable.getSelection();

                if (selection.isEmpty())
                    return;

                Param param = ((Param) selection.getFirstElement());
                setSendMessage("D", "PRM", "", param.getID(), "", (String) paramTable.getData("PID"));
                param.remove();
                paramTable.refresh();

                HashMap<String, String> tmpParam = paramMap.get((String) paramTable.getData("PID"));
                tmpParam.remove(param.getID());

                isModified = true;
                firePropertyChange(PROP_DIRTY);
            }
            /*else if(e.widget == importConfig)
            {
               importConfigFile();
            }
            else if(e.widget == exportConfig)
            {
               exportConfigFile();
            }*/
        }

        public void widgetDefaultSelected(SelectionEvent e) {
        }

    };
}