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:ca.uvic.chisel.javasketch.ui.internal.presentation.properties.TraceModelPropertySection.java

License:Open Source License

@Override
public void setInput(IWorkbenchPart part, ISelection selection) {
    super.setInput(part, selection);
    this.traceModel = null;
    if (selection instanceof IStructuredSelection) {
        IStructuredSelection ss = (IStructuredSelection) selection;
        traceModel = ss.getFirstElement();
        if (traceModel instanceof IProgramSketch) {
            traceModel = ((IProgramSketch) traceModel).getTraceData();
        }/*w  w w. ja v  a2 s  .c o  m*/
    }
}

From source file:ca.uvic.chisel.javasketch.ui.internal.search.TraceSearchResultPage.java

License:Open Source License

@Override
public void createControl(Composite parent) {
    page = new Composite(parent, SWT.NULL);
    page.setLayout(new GridLayout());
    fViewer = new TreeViewer(page, SWT.NONE);
    fViewer.getTree().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
    TableLayout tl = new TableLayout();
    fViewer.getTree().setLayout(tl);/*from w ww.  j ava  2  s. c o  m*/
    // create columns for the viewer
    TreeViewerColumn c = new TreeViewerColumn(fViewer, SWT.NONE);
    c.getColumn().setText("Search Result");
    c.setLabelProvider(new TraceSearchResultLabelProvider());
    GC gc = new GC(fViewer.getTree());
    tl.addColumnData(new ColumnPixelData(Dialog.convertWidthInCharsToPixels(gc.getFontMetrics(), 60)));
    gc.dispose();

    c = new TreeViewerColumn(fViewer, SWT.NONE);
    c.getColumn().setText("Kind");
    c.setLabelProvider(new TraceSearchResultLabelProvider());
    tl.addColumnData(new ColumnPixelData(50));

    c = new TreeViewerColumn(fViewer, SWT.NONE);
    c.getColumn().setText("Trace");
    c.setLabelProvider(new TraceSearchResultLabelProvider());

    tl.addColumnData(new ColumnPixelData(50));
    resultsListener = new TraceSearchResultListener();

    fViewer.getTree().setHeaderVisible(true);

    fViewer.setContentProvider(new TraceSearchResultContentProvider());
    //create a context menu for the viewer so that results can be 
    //linked to
    MenuManager manager = new MenuManager("TraceSearchResultsPage", "#TraceSearchResults");
    Menu menu = manager.createContextMenu(fViewer.getTree());
    manager.setRemoveAllWhenShown(true);
    manager.addMenuListener(new IMenuListener() {

        @Override
        public void menuAboutToShow(IMenuManager manager) {
            fillContextMenu(manager);
            IStructuredSelection ss = (IStructuredSelection) getSite().getSelectionProvider().getSelection();
            if (!ss.isEmpty()) {
                Object o = ss.getFirstElement();
                if (o instanceof IActivation || o instanceof IMessage) {
                    IAction action = new CommandAction(RevealActivationHandler.COMMAND_ID, null);
                    action.setText("Reveal");
                    manager.add(action);
                }
            }
        }
    });
    getSite().registerContextMenu("#TraceSearchResults", manager, fViewer);
    fViewer.getTree().setMenu(menu);
    SelectionForward forward = new SelectionForward();
    fViewer.addSelectionChangedListener(forward);
    getSite().setSelectionProvider(forward);

}

From source file:ca.uvic.chisel.javasketch.ui.internal.views.ToggleSketchFilteredHandler.java

License:Open Source License

/**
 * @return// ww  w . ja v a 2  s.  co  m
 */
private IProgramSketch getSelectedSketch() {
    TraceNavigator navigator = getNagivator();
    if (navigator != null) {
        ISelection selection = navigator.getViewSite().getSelectionProvider().getSelection();
        if (selection instanceof IStructuredSelection) {
            IStructuredSelection ss = (IStructuredSelection) selection;
            if (ss.getFirstElement() instanceof IProgramSketch) {
                return (IProgramSketch) ss.getFirstElement();
            }
        }
    }
    return null;
}

From source file:ca.uvic.chisel.javasketch.ui.internal.views.TraceNavigator.java

License:Open Source License

@Override
public void createPartControl(Composite parent) {
    viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION);
    viewer.setUseHashlookup(true);/*from  w w  w .  j a  v a 2 s .  c  om*/
    // TreeViewerColumn plusColumn = new TreeViewerColumn(viewer, SWT.NONE,
    // 0);
    // plusColumn.getColumn().setWidth(60);
    final TreeViewerColumn labelColumn = new TreeViewerColumn(viewer, SWT.NONE, LABEL_COLUMN);
    labelColumn.getColumn().setWidth(100);
    TreeViewerColumn activeTraceColumn = new TreeViewerColumn(viewer, SWT.NONE, ACTIVE_TRACE_COLUMN);
    activeTraceColumn.getColumn().setWidth(16);
    TreeViewerColumn visibleTraceColumn = new TreeViewerColumn(viewer, SWT.NONE, VISIBLE_TRACE_COLUMN);
    visibleTraceColumn.getColumn().setWidth(16);
    viewer.getTree().addMouseListener(treeMouseListener);

    viewer.getTree().addControlListener(new ControlAdapter() {
        /*
         * (non-Javadoc)
         * @see
         * org.eclipse.swt.events.ControlAdapter#controlResized(org.eclipse
         * .swt.events.ControlEvent)
         */
        @Override
        public void controlResized(ControlEvent e) {
            Composite composite = (Composite) e.widget;
            Rectangle b = composite.getBounds();
            ScrollBar scrollbar = composite.getVerticalBar();
            int width = b.width - 32;
            if (scrollbar != null && scrollbar.getVisible()) {
                width -= 20;
            }
            labelColumn.getColumn().setWidth(Math.max(0, width));
        }
    });
    viewer.setContentProvider(new TraceNavigatorContentProvider());
    viewer.setLabelProvider(new TraceNavigatorLabelProvider());
    viewer.setInput(ResourcesPlugin.getWorkspace().getRoot());
    viewer.addSelectionChangedListener(new ISelectionChangedListener() {
        @Override
        public void selectionChanged(SelectionChangedEvent event) {
            IStructuredSelection selection = (IStructuredSelection) event.getSelection();
            Object o = selection.getFirstElement();
            if (o instanceof IThread) {
                SketchPlugin.getDefault().getDOI().setThreadSelection((IThread) o);
            } else {
                SketchPlugin.getDefault().getDOI().setThreadSelection(null);
            }
            SketchUI.INSTANCE.refreshJavaUI();
        }
    });
    createContextMenu(viewer.getControl());
    getSite().setSelectionProvider(viewer);
    IMenuManager manager = getViewSite().getActionBars().getMenuManager();
    Action toggleFilterAction = new Action("Filter Empty Threads", SWT.CHECK) {
        /* (non-Javadoc)
         * @see org.eclipse.jface.action.Action#run()
         */
        @Override
        public void run() {
            IPreferenceStore store = SketchPlugin.getDefault().getPreferenceStore();
            boolean checked = store.getBoolean("tracenavigator.filter.emptythread");
            if (checked) {
                //uncheck
                viewer.removeFilter(threadFilter);
            } else {
                viewer.addFilter(threadFilter);
            }
            store.setValue("tracenavigator.filter.emptythread", !checked);
            viewer.refresh();
        }
    };
    IPreferenceStore store = SketchPlugin.getDefault().getPreferenceStore();
    boolean checked = true;
    if (!store.contains("tracenavigator.filter.emptythread")) {
        store.setValue("tracenavigator.filter.emptythread", true);
    } else {
        checked = store.getBoolean("tracenavigator.filter.emptythread");
    }
    toggleFilterAction.setChecked(checked);
    if (checked) {
        viewer.addFilter(threadFilter);
    }
    manager.add(toggleFilterAction);
}

From source file:ca.uvic.chisel.logging.eclipse.internal.ui.UploadWizardPage1.java

License:Open Source License

private Composite createCategoriesArea(Composite parent) {
    Composite categoriesArea = new Composite(parent, SWT.NONE);
    categoriesArea.setLayout(new GridLayout(2, false));

    //create a list viewer that will display all of the 
    //different loggers

    viewer = CheckboxTableViewer.newCheckList(categoriesArea, SWT.BORDER | SWT.SINGLE);
    viewer.setContentProvider(new ArrayContentProvider());
    viewer.setLabelProvider(new LoggingCategoryLabelProvider());
    viewer.setInput(WorkbenchLoggingPlugin.getDefault().getCategoryManager().getCategories());
    //set all of the enabled categories to the checked state
    for (ILoggingCategory category : WorkbenchLoggingPlugin.getDefault().getCategoryManager().getCategories()) {
        selectedCategories.add(category.getCategoryID());
    }//  w  w w.  j a  va2 s.  com
    viewer.setAllChecked(true);
    viewer.addCheckStateListener(new ICheckStateListener() {

        public void checkStateChanged(CheckStateChangedEvent event) {
            if (event.getElement() instanceof ILoggingCategory) {
                ILoggingCategory category = (ILoggingCategory) event.getElement();
                if (event.getChecked()) {
                    selectedCategories.add(category.getCategoryID());
                } else {
                    selectedCategories.remove(category.getCategoryID());
                }
            }
        }
    });
    viewer.addSelectionChangedListener(new ISelectionChangedListener() {
        public void selectionChanged(SelectionChangedEvent event) {
            if (aboutButton != null && !aboutButton.isDisposed()) {
                aboutButton.setEnabled(!event.getSelection().isEmpty());
            }
        }
    });

    viewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

    //create a button area
    Composite buttonArea = new Composite(categoriesArea, SWT.NONE);
    buttonArea.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
    buttonArea.setLayout(new GridLayout());

    GridDataFactory gdf = GridDataFactory.createFrom(new GridData(SWT.FILL, SWT.FILL, true, false));
    Button selectAll = new Button(buttonArea, SWT.PUSH);
    selectAll.setText("Select All");
    selectAll.setLayoutData(gdf.create());
    selectAll.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetSelected(SelectionEvent e) {
            viewer.setAllChecked(true);
            for (ILoggingCategory category : WorkbenchLoggingPlugin.getDefault().getCategoryManager()
                    .getCategories()) {
                selectedCategories.add(category.getCategoryID());
            }
        }
    });

    Button selectNone = new Button(buttonArea, SWT.PUSH);
    selectNone.setText("Select None");
    selectNone.setLayoutData(gdf.create());
    selectNone.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetSelected(SelectionEvent e) {
            viewer.setAllChecked(false);
            selectedCategories.clear();
        }
    });

    Control spacer = new Composite(buttonArea, SWT.NONE);
    GridData d = gdf.create();
    d.heightHint = 40;
    spacer.setLayoutData(d);

    aboutButton = new Button(buttonArea, SWT.PUSH);
    aboutButton.setText("Disclaimer...");
    aboutButton.setLayoutData(gdf.create());
    aboutButton.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            ISelection selection = viewer.getSelection();
            if (selection instanceof IStructuredSelection) {
                IStructuredSelection ss = (IStructuredSelection) selection;
                if (!ss.isEmpty() && ss.getFirstElement() instanceof ILoggingCategory) {
                    AboutCategoryDialog dialog = new AboutCategoryDialog(getShell(),
                            (ILoggingCategory) ss.getFirstElement());
                    dialog.open();
                }
            }
        }
    });
    aboutButton.setEnabled(false);
    return categoriesArea;
}

From source file:ca.uvic.chisel.logging.eclipse.internal.ui.WorkbenchLoggerPreferencePage.java

License:Open Source License

@Override
protected Control createContents(Composite parent) {
    Composite page = new Composite(parent, SWT.NONE);
    page.setLayout(new GridLayout(2, false));

    // create a list viewer that will display all of the
    // different loggers

    viewer = CheckboxTableViewer.newCheckList(page, SWT.BORDER | SWT.SINGLE);
    viewer.setContentProvider(new ArrayContentProvider());
    viewer.setLabelProvider(new LoggingCategoryLabelProvider());
    viewer.setInput(WorkbenchLoggingPlugin.getDefault().getCategoryManager().getCategories());
    // set all of the enabled categories to the checked state
    boolean stale = false;
    for (ILoggingCategory category : WorkbenchLoggingPlugin.getDefault().getCategoryManager().getCategories()) {
        if (category.isEnabled()) {
            enabledCategories.add(category.getCategoryID());
            viewer.setChecked(category, true);
        }//  w w  w.j a va2s .co m
        // also set the stale state... used for enabling the upload button.
        stale |= ((LoggingCategory) category).isStale();
    }
    viewer.addCheckStateListener(new ICheckStateListener() {

        public void checkStateChanged(CheckStateChangedEvent event) {
            if (event.getElement() instanceof ILoggingCategory) {
                ILoggingCategory category = (ILoggingCategory) event.getElement();
                if (event.getChecked()) {
                    enabledCategories.add(category.getCategoryID());
                } else {
                    enabledCategories.remove(category.getCategoryID());
                }
            }
        }
    });
    viewer.addSelectionChangedListener(new ISelectionChangedListener() {
        public void selectionChanged(SelectionChangedEvent event) {
            if (aboutButton != null && !aboutButton.isDisposed()) {
                aboutButton.setEnabled(!event.getSelection().isEmpty());
            }
        }
    });

    viewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

    // create a button area
    Composite buttonArea = new Composite(page, SWT.NONE);
    buttonArea.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
    buttonArea.setLayout(new GridLayout());

    GridDataFactory gdf = GridDataFactory.createFrom(new GridData(SWT.FILL, SWT.FILL, true, false));
    Button selectAll = new Button(buttonArea, SWT.PUSH);
    selectAll.setText("Select All");
    selectAll.setLayoutData(gdf.create());
    selectAll.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetSelected(SelectionEvent e) {
            viewer.setAllChecked(true);
            for (ILoggingCategory category : WorkbenchLoggingPlugin.getDefault().getCategoryManager()
                    .getCategories()) {
                enabledCategories.add(category.getCategoryID());
            }
        }
    });

    Button selectNone = new Button(buttonArea, SWT.PUSH);
    selectNone.setText("Select None");
    selectNone.setLayoutData(gdf.create());
    selectNone.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetSelected(SelectionEvent e) {
            viewer.setAllChecked(false);
            enabledCategories.clear();
        }
    });

    Control spacer = new Composite(buttonArea, SWT.NONE);
    GridData d = gdf.create();
    d.heightHint = 40;
    spacer.setLayoutData(d);

    aboutButton = new Button(buttonArea, SWT.PUSH);
    aboutButton.setText("About...");
    aboutButton.setLayoutData(gdf.create());
    aboutButton.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            widgetSelected(e);
        }

        @Override
        public void widgetSelected(SelectionEvent e) {
            ISelection selection = viewer.getSelection();
            if (selection instanceof IStructuredSelection) {
                IStructuredSelection ss = (IStructuredSelection) selection;
                if (!ss.isEmpty() && ss.getFirstElement() instanceof ILoggingCategory) {
                    AboutCategoryDialog dialog = new AboutCategoryDialog(getShell(),
                            (ILoggingCategory) ss.getFirstElement());
                    dialog.open();
                }
            }
        }
    });
    aboutButton.setEnabled(false);

    spacer = new Composite(buttonArea, SWT.NONE);
    d = gdf.create();
    d.heightHint = 40;
    spacer.setLayoutData(d);

    Button uploadButton = new Button(buttonArea, SWT.PUSH);
    uploadButton.setText("Upload Now...");
    uploadButton.setLayoutData(gdf.create());
    uploadButton.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetSelected(SelectionEvent e) {
            WizardDialog dialog = new WizardDialog(getShell(), new UploadWizard());
            dialog.open();
        }
    });
    uploadButton.setEnabled(stale);
    Composite intervalComposite = new Composite(page, SWT.NONE);
    GridData gd = gdf.create();
    gd.grabExcessVerticalSpace = false;
    gd.grabExcessHorizontalSpace = true;
    intervalComposite.setLayoutData(gd);
    intervalComposite.setLayout(new GridLayout(2, false));
    Label intervalLabel = new Label(intervalComposite, SWT.NONE);
    intervalLabel.setText("Upload Interval: ");
    gd = gdf.create();
    gd.grabExcessVerticalSpace = false;
    gd.grabExcessHorizontalSpace = false;
    intervalLabel.setLayoutData(gd);
    intervalViewer = new ComboViewer(intervalComposite, SWT.BORDER | SWT.SINGLE);
    Long[] intervals = new Long[] { UploadJob.UPLOAD_INTERVAL_DAILY, UploadJob.UPLOAD_INTERVAL_WEEKLY,
            UploadJob.UPLOAD_INTERVAL_MONTHLY };
    intervalViewer.setContentProvider(new ArrayContentProvider());
    intervalViewer.setLabelProvider(new LabelProvider() {
        @Override
        public String getText(Object element) {
            if (element instanceof Long) {
                long interval = (Long) element;
                if (interval == UploadJob.UPLOAD_INTERVAL_DAILY) {
                    return "Daily";
                } else if (interval == UploadJob.UPLOAD_INTERVAL_WEEKLY) {
                    return "Every Seven Days";
                } else if (interval == UploadJob.UPLOAD_INTERVAL_MONTHLY) {
                    return "Every Thirty Days";
                }
            }
            return super.getText(element);
        }
    });
    intervalViewer.setInput(intervals);
    long interval = WorkbenchLoggingPlugin.getDefault().getPreferenceStore()
            .getLong(UploadJob.UPLOAD_INTERVAL_KEY);
    if (interval <= 0) {
        interval = WorkbenchLoggingPlugin.getDefault().getPreferenceStore()
                .getDefaultLong(UploadJob.UPLOAD_INTERVAL_KEY);
    }
    intervalViewer.setSelection(new StructuredSelection(interval));
    intervalViewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));

    spacer = new Composite(page, SWT.NONE);
    gd = gdf.create();
    gd.grabExcessVerticalSpace = false;
    gd.grabExcessHorizontalSpace = false;
    gd.heightHint = 2;
    spacer.setLayoutData(gd);
    Composite uidComposite = new Composite(page, SWT.NONE);
    uidComposite.setLayout(new GridLayout(2, false));
    gd = gdf.create();
    gd.grabExcessVerticalSpace = false;
    gd.grabExcessHorizontalSpace = false;
    gd.horizontalSpan = 2;
    uidComposite.setLayoutData(gd);
    Label uidLabel = new Label(uidComposite, SWT.NONE);
    uidLabel.setText("User ID:");
    gd = gdf.create();
    gd.grabExcessVerticalSpace = false;
    gd.grabExcessHorizontalSpace = false;
    uidLabel.setLayoutData(gd);
    final Text uidText = new Text(uidComposite, SWT.SINGLE | SWT.READ_ONLY);
    uidText.setText(WorkbenchLoggingPlugin.getDefault().getLocalUser());
    uidText.addMouseListener(new MouseAdapter() {
        /* (non-Javadoc)
         * @see org.eclipse.swt.events.MouseAdapter#mouseUp(org.eclipse.swt.events.MouseEvent)
         */
        @Override
        public void mouseUp(MouseEvent e) {
            uidText.selectAll();
        }
    });
    MenuManager manager = new MenuManager();
    Menu menu = manager.createContextMenu(uidText);
    uidText.setMenu(menu);
    CommandContributionItemParameter parameters = new CommandContributionItemParameter(
            WorkbenchLoggingPlugin.getDefault().getWorkbench(), null, EDIT_COPY, SWT.PUSH);
    manager.add(new CommandContributionItem(parameters));
    return page;
}

From source file:ca.uvic.chisel.logging.eclipse.internal.ui.WorkbenchLoggerPreferencePage.java

License:Open Source License

@Override
public boolean performOk() {
    for (ILoggingCategory category : WorkbenchLoggingPlugin.getDefault().getCategoryManager().getCategories()) {
        boolean enabled = enabledCategories.contains(category.getCategoryID());
        if (category.isEnabled() != enabled) {
            category.setEnabled(enabled);
        }// www. j ava2s .  c  o m
    }
    IPreferenceStore store = WorkbenchLoggingPlugin.getDefault().getPreferenceStore();
    IStructuredSelection selection = (IStructuredSelection) intervalViewer.getSelection();
    store.setValue(UploadJob.UPLOAD_INTERVAL_KEY, (long) ((Long) selection.getFirstElement()));
    return super.performOk();
}

From source file:ca.uvic.cs.tagsea.actions.GoToTagAction.java

License:Open Source License

/**
 * Grabs the currently selected waypoint from the viewer and navigates to
 * that waypoint's marker position in the editor.
 *//* w w w . j  a v a2s.c o m*/
public void run() {
    IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
    if (!selection.isEmpty()) {
        Object obj = selection.getFirstElement();
        IMarker marker = null;
        if (obj instanceof Waypoint) {
            // Waypoints TableViewer
            marker = ((Waypoint) obj).getMarker();
        }
        if ((marker != null) && marker.exists()) {
            IResource resource = marker.getResource();
            if (marker.exists() && resource instanceof IFile) {
                try {
                    IDE.openEditor(page, marker, OpenStrategy.activateOnOpen());
                    Monitoring.getDefault().fireEvent(new TagSEANavigationEvent((Waypoint) obj));
                } catch (PartInitException e) {
                    TagSEAPlugin.log("Couldn't open editor to show the tag", e);
                }
            }
        }
    }
}

From source file:ca.uvic.cs.tagsea.ui.views.RoutesComposite.java

License:Open Source License

protected void selectionChanged(SelectionChangedEvent event) {
    if (event.getSelection().isEmpty()) {
        enableAllActions(false);//from ww  w.ja va  2s .  c om
    } else {
        enableAllActions(true);
        IStructuredSelection selections = (IStructuredSelection) event.getSelection();

        if (selections.size() == 1 && selections.getFirstElement() instanceof Route) {
            Route route = (Route) selections.getFirstElement();

            if (route.getWaypoints().size() == 0) {
                backAction.setEnabled(false);
                forwardAction.setEnabled(false);
            }
        }
    }

    boolean routesSelected = false;

    TreeItem[] selections = routesTreeViewer.getTree().getSelection();

    for (TreeItem item : selections) {
        if (item.getData() instanceof Route)
            routesSelected = true;
    }

    if (routesSelected)
        removeStaleWaypointsAction.setEnabled(true);
    else
        removeStaleWaypointsAction.setEnabled(false);
}

From source file:ca.uwaterloo.gp.fmp.presentation.FmpAdapterFactoryTreeEditor.java

License:Open Source License

public void keyPressed(KeyEvent event) {
    if ((event.stateMask & SWT.ALT) == SWT.ALT && event.keyCode == SWT.ARROW_DOWN) {
        // expand subtree
        IStructuredSelection selection = (IStructuredSelection) treeViewer.getSelection();
        Object element = selection.getFirstElement();
        if (element != null)
            treeViewer.expandToLevel(element, AbstractTreeViewer.ALL_LEVELS);
    } else// www . j  a  v  a 2s.com
        super.keyPressed(event);
}