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

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

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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:ch.uzh.ifi.seal.permo.history.main.ui.view.ProjectHistoryViewMainControl.java

License:Apache License

private void createContent() {
    final SashForm sashForm = new SashForm(this, SWT.VERTICAL);
    setRealContent(sashForm, GridDataBuilder.singleCell().alignment(SWT.FILL).grabSpace().create());

    final Composite overviewBox = new Composite(sashForm, SWT.NONE);
    overviewBox.setLayout(GridLayoutBuilder.oneColumn().noMargin().spacing(LayoutConstants.SPACING).create());

    title = new ProjectHistoryTitle(overviewBox, SWT.NONE);
    title.setLayoutData(GridDataBuilder.singleCell().alignment(SWT.FILL).grabHorizontalSpace().create());

    projectHistoryTable = new ProjectHistoryTable(overviewBox);
    projectHistoryTable.getTable()/*from www.  j  a  v  a  2  s  . co  m*/
            .setLayoutData(GridDataBuilder.singleCell().alignment(SWT.FILL).grabSpace().create());
    projectHistoryTable.addSelectionChangedListener(new ISelectionChangedListener() {
        @Override
        public void selectionChanged(final SelectionChangedEvent event) {
            if (event.getSelection() instanceof IStructuredSelection) {
                final IStructuredSelection selection = (IStructuredSelection) event.getSelection();
                if (selection.getFirstElement() instanceof ProjectHistoryEventViewModel) {
                    viewModel.setSelectedEvent((ProjectHistoryEventViewModel) selection.getFirstElement());
                }
            }
        }
    });

    new EventDetailWrapper(sashForm, viewModel);
}

From source file:ch.wess.ezclipse.ini.wizards.internal.NewINIWizardPage.java

License:Open Source License

/**
 * Tests if the current workbench selection is a suitable container to use.
 *//*from   ww w  . ja va 2s .  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." + getExtension()); //$NON-NLS-1$
}

From source file:ch.wess.ezclipse.tpl.wizards.internal.NewTemplateWizardPage.java

License:Open Source License

/**
 * Tests if the current workbench selection is a suitable container to use.
 *//*from www .  j  a  v a2  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.tpl"); //$NON-NLS-1$
}

From source file:ch.wess.ezclipse.varbrowser.handlers.internal.CopyHandler.java

License:Open Source License

/**
 * This method copy the tree path of the selected element to the clipboard.
 * //from w w  w .jav  a2 s .c  om
 * @param event
 */
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
    // Retrieve the selected element.
    ISelection selection = HandlerUtil.getActiveWorkbenchWindow(event).getActivePage().getSelection();
    if (selection != null & selection instanceof IStructuredSelection) {
        IStructuredSelection strucSelection = (IStructuredSelection) selection;
        Object selectedElement = strucSelection.getFirstElement();

        if (selectedElement instanceof Variable) {
            String path = ""; //$NON-NLS-1$
            Variable currentItem = (Variable) selectedElement;
            boolean first = true;
            while (currentItem.getName() != "node") { //$NON-NLS-1$
                path = currentItem.getName().concat(first ? "" : "." + path); //$NON-NLS-1$ //$NON-NLS-2$
                currentItem = currentItem.getParent();
                first = false;
            }

            String finalPath = "$node." + path; //$NON-NLS-1$
            Clipboard cp = new Clipboard(HandlerUtil.getActivePart(event).getSite().getShell().getDisplay());
            TextTransfer tt = TextTransfer.getInstance();
            cp.setContents(new String[] { finalPath }, new Transfer[] { tt });
            cp.dispose();
        }
    }
    return null;
}

From source file:ch.wess.ezclipse.varbrowser.handlers.internal.RefreshHandler.java

License:Open Source License

/**
 * Refresh the subtree of the selected element.
 * /*from w  w w .  j a va  2  s.  c om*/
 * @param event
 */
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
    // Retrieve the selected element.
    ISelection selection = HandlerUtil.getActiveWorkbenchWindow(event).getActivePage().getSelection();
    Object selectedElement = null;
    if (selection != null & selection instanceof IStructuredSelection) {
        IStructuredSelection strucSelection = (IStructuredSelection) selection;
        selectedElement = strucSelection.getFirstElement();
    }

    if (selectedElement != null && selectedElement instanceof Variable) {
        IWorkbenchPart varBrowser = HandlerUtil.getActivePart(event);
        if (varBrowser instanceof VarBrowser) {
            if (((Variable) selectedElement).isContainer()) {
                ((VarBrowser) varBrowser).getTreeViewer().refresh(selectedElement);
            } else {
                if (((Variable) selectedElement).getParent() != null) {
                    ((VarBrowser) varBrowser).getTreeViewer().refresh(((Variable) selectedElement).getParent());
                } else {
                    ((VarBrowser) varBrowser).getTreeViewer().refresh();
                }
            }
        }
    }
    return null;
}

From source file:cideplus.ui.astview.ASTView.java

License:Open Source License

@Override
public void createPartControl(Composite parent) {
    fSash = new SashForm(parent, SWT.VERTICAL | SWT.SMOOTH);
    fViewer = new TreeViewer(fSash, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
    fDrillDownAdapter = new DrillDownAdapter(fViewer);
    fViewer.setContentProvider(new ASTViewContentProvider());
    fASTLabelProvider = new ASTViewLabelProvider();
    fViewer.setLabelProvider(fASTLabelProvider);
    fViewer.addSelectionChangedListener(fSuperListener);
    fViewer.addDoubleClickListener(fSuperListener);
    fViewer.addFilter(new ViewerFilter() {
        @Override//from  w w  w. ja v  a  2  s  .  com
        public boolean select(Viewer viewer, Object parentElement, Object element) {
            if (!fCreateBindings && element instanceof Binding)
                return false;
            return true;
        }
    });
    fViewer.addFilter(fNonRelevantFilter);

    ViewForm trayForm = new ViewForm(fSash, SWT.NONE);
    Label label = new Label(trayForm, SWT.NONE);
    label.setText(" Comparison Tray (* = selection in the upper tree):"); //$NON-NLS-1$
    trayForm.setTopLeft(label);

    fTray = new TreeViewer(trayForm, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
    trayForm.setContent(fTray.getTree());

    fTrayRoots = new ArrayList();
    fTray.setContentProvider(new TrayContentProvider());
    final TrayLabelProvider trayLabelProvider = new TrayLabelProvider();
    fTray.setLabelProvider(trayLabelProvider);
    fTray.setAutoExpandLevel(AbstractTreeViewer.ALL_LEVELS);
    fTrayUpdater = new ISelectionChangedListener() {
        public void selectionChanged(SelectionChangedEvent event) {
            IStructuredSelection viewerSelection = (IStructuredSelection) fViewer.getSelection();
            if (viewerSelection.size() == 1) {
                Object first = viewerSelection.getFirstElement();
                if (unwrapAttribute(first) != null) {
                    trayLabelProvider.setViewerElement(first);
                    return;
                }
            }
            trayLabelProvider.setViewerElement(null);
        }
    };
    fTray.addPostSelectionChangedListener(fTrayUpdater);
    fViewer.addPostSelectionChangedListener(fTrayUpdater);
    fTray.addDoubleClickListener(new IDoubleClickListener() {
        public void doubleClick(DoubleClickEvent event) {
            performTrayDoubleClick();
        }
    });
    fTray.addSelectionChangedListener(new ISelectionChangedListener() {
        public void selectionChanged(SelectionChangedEvent event) {
            IStructuredSelection selection = (IStructuredSelection) event.getSelection();
            fDeleteAction.setEnabled(selection.size() >= 1 && fTray.getTree().isFocusControl());
        }
    });
    fTray.getTree().addFocusListener(new FocusAdapter() {
        @Override
        public void focusGained(FocusEvent e) {
            IStructuredSelection selection = (IStructuredSelection) fTray.getSelection();
            fDeleteAction.setEnabled(selection.size() >= 1);
        }

        @Override
        public void focusLost(FocusEvent e) {
            fDeleteAction.setEnabled(false);
        }
    });

    makeActions();
    hookContextMenu();
    hookTrayContextMenu();
    contributeToActionBars();
    getSite().setSelectionProvider(new ASTViewSelectionProvider());

    try {
        IEditorPart part = EditorUtility.getActiveEditor();
        if (part instanceof ITextEditor) {
            setInput((ITextEditor) part);
        }
    } catch (CoreException e) {
        // ignore
    }
    if (fTypeRoot == null) {
        clearView();
    } else {
        setASTUptoDate(fTypeRoot != null);
    }
}

From source file:cideplus.ui.astview.ASTView.java

License:Open Source License

private ASTNode getASTNodeNearSelection(IStructuredSelection selection) {
    Object elem = selection.getFirstElement();
    if (elem instanceof ASTAttribute) {
        return ((ASTAttribute) elem).getParentASTNode();
    } else if (elem instanceof ASTNode) {
        return (ASTNode) elem;
    }/*ww w.  j a va  2 s  .co  m*/
    return null;
}

From source file:cideplus.ui.astview.ASTView.java

License:Open Source License

protected void handleSelectionChanged(ISelection selection) {
    fExpandAction.setEnabled(!selection.isEmpty());
    fCollapseAction.setEnabled(!selection.isEmpty());
    fCopyAction.setEnabled(!selection.isEmpty());

    boolean addEnabled = false;
    IStructuredSelection structuredSelection = (IStructuredSelection) selection;
    if (structuredSelection.size() == 1 && fViewer.getTree().isFocusControl()) {
        Object first = structuredSelection.getFirstElement();
        Object unwrapped = ASTView.unwrapAttribute(first);
        addEnabled = unwrapped != null;/*from w  ww  .jav  a 2s.c  o m*/
    }
    fAddToTrayAction.setEnabled(addEnabled);
}

From source file:cideplus.ui.astview.ASTView.java

License:Open Source License

protected void performAddToTray() {
    IStructuredSelection selection = (IStructuredSelection) fViewer.getSelection();
    Object firstElement = selection.getFirstElement();
    if (!fTrayRoots.contains(firstElement)) {
        fTrayRoots.add(firstElement);//from w  ww  . ja va 2 s  . co  m
        fTray.setInput(fTrayRoots);
    }
    if (fSash.getMaximizedControl() != null) {
        int trayHeight = fTray.getTree().getItemHeight() * (2 + TrayContentProvider.DEFAULT_CHILDREN_COUNT);
        int sashHeight = fSash.getClientArea().height;
        fSash.setWeights(new int[] { sashHeight - trayHeight, trayHeight });
        fSash.setMaximizedControl(null);
    }
    setTraySelection(selection);
}

From source file:cideplus.ui.astview.ASTView.java

License:Open Source License

protected void performTrayDoubleClick() {
    IStructuredSelection selection = (IStructuredSelection) fTray.getSelection();
    if (selection.size() != 1)
        return;/*from w  w w.  ja v a  2  s .c o m*/
    Object obj = selection.getFirstElement();
    if (obj instanceof ExceptionAttribute) {
        Throwable exception = ((ExceptionAttribute) obj).getException();
        if (exception != null) {
            String label = ((ExceptionAttribute) obj).getLabel();
            showAndLogError("An error occurred while calculating an AST View Label:\n" + label, exception); //$NON-NLS-1$
            return;
        }
    }
    if (obj instanceof Binding) {
        Binding binding = (Binding) obj;
        fViewer.setSelection(new StructuredSelection(binding), true);
    }
}