Example usage for org.eclipse.jface.databinding.viewers ObservableListContentProvider ObservableListContentProvider

List of usage examples for org.eclipse.jface.databinding.viewers ObservableListContentProvider ObservableListContentProvider

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Introduction

In this page you can find the example usage for org.eclipse.jface.databinding.viewers ObservableListContentProvider ObservableListContentProvider.

Prototype

public ObservableListContentProvider()

Source Link

Document

Constructs an ObservableListContentProvider.

Usage

From source file:org.eclipse.emf.examples.library.databinding.stock.StockForm.java

License:Open Source License

@Override
public void doCreateForm(TabFolder folder, TabItem item, EditingDomain domain, DataBindingContext dbc,
        IObservableValue master) {//from  w  w w.j  a  v  a 2 s  . co m
    Composite comp = new Composite(folder, SWT.NONE);
    IValueProperty textProp = WidgetProperties.text();
    dbc.bindValue(textProp.observe(item),
            EMFEditObservables.observeDetailValue(Realm.getDefault(), domain, master,
                    EXTLibraryPackage.Literals.LIBRARY__STOCK),
            new UpdateValueStrategy(), new UpdateValueStrategy().setConverter(new LengthConverter()));

    TableColumnLayout layout = new TableColumnLayout();
    comp.setLayout(layout);

    itemViewer = new TableViewer(comp,
            SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.MULTI);
    IFocusService focusService = (IFocusService) getSite().getService(IFocusService.class);
    focusService.addFocusTracker(itemViewer.getControl(), STOCK_TABLE);
    itemViewer.getTable().setHeaderVisible(true);
    itemViewer.getTable().setLinesVisible(true);
    ObservableListContentProvider cp = new ObservableListContentProvider();
    itemViewer.setContentProvider(cp);
    itemViewer.addSelectionChangedListener(new ISelectionChangedListener() {

        public void selectionChanged(SelectionChangedEvent event) {
            ISourceProviderService service = (ISourceProviderService) getSite()
                    .getService(ISourceProviderService.class);
            SourceProvider pv = (SourceProvider) service.getSourceProvider(ISources.SELECTED_STOCK_ITEM_NAME);
            pv.setItemSelection(event.getSelection());
        }

    });

    ConditionalTemplate tplBookTitle = new ConditionalTemplate("${0}") {

        @Override
        public boolean isTemplate(EObject element) {
            return element instanceof Book && ((Book) element).getTitle() != null;
        }

    };
    ConditionalTemplate tplAudiovisualTitle = new ConditionalTemplate("${1}") {

        @Override
        public boolean isTemplate(EObject element) {
            return element instanceof AudioVisualItem && ((AudioVisualItem) element).getTitle() != null;
        }

    };
    ConditionalTemplate tplPeriodicalTitle = new ConditionalTemplate("${2}") {

        @Override
        public boolean isTemplate(EObject element) {
            return element instanceof Periodical && ((Periodical) element).getTitle() != null;
        }

    };

    ConditionalTemplate tplPublicationDate = new ConditionalTemplate("${0,date,medium}") {

        @Override
        public boolean isTemplate(EObject element) {
            return ((Item) element).getPublicationDate() != null;
        }

    };

    ConditionalTemplate tplNullValue = new ConditionalTemplate("-") {

        @Override
        public boolean isTemplate(EObject element) {
            return true;
        }

    };

    IObservableMap featBookTitle = EMFEditObservables.observeMap(domain, cp.getKnownElements(),
            EXTLibraryPackage.Literals.BOOK__TITLE);
    IObservableMap featAudiovisualTitle = EMFEditObservables.observeMap(domain, cp.getKnownElements(),
            EXTLibraryPackage.Literals.AUDIO_VISUAL_ITEM__TITLE);
    IObservableMap featPeriodicalTitle = EMFEditObservables.observeMap(domain, cp.getKnownElements(),
            EXTLibraryPackage.Literals.PERIODICAL__TITLE);
    IObservableMap featItemPublicationDate = EMFEditObservables.observeMap(domain, cp.getKnownElements(),
            EXTLibraryPackage.Literals.ITEM__PUBLICATION_DATE);

    TableViewerColumn c = new TableViewerColumn(itemViewer, SWT.NONE);
    c.getColumn().setText("AAAAA");
    layout.setColumnData(c.getColumn(), new ColumnWeightData(1, 120));
    c.setLabelProvider(new ObservableColumnLabelProvider(
            new IObservableMap[] { featBookTitle, featAudiovisualTitle, featPeriodicalTitle },
            Arrays.asList(tplBookTitle, tplAudiovisualTitle, tplPeriodicalTitle, tplNullValue)));

    c = new TableViewerColumn(itemViewer, SWT.NONE);
    c.getColumn().setText("Type");
    layout.setColumnData(c.getColumn(), new ColumnWeightData(1, 120));
    c.setLabelProvider(new ColumnLabelProvider() {

        @Override
        public String getText(Object element) {
            if (element instanceof Book) {
                return "Book";
            } else if (element instanceof BookOnTape) {
                return "Book On Tape";
            } else if (element instanceof VideoCassette) {
                return "Video";
            } else if (element instanceof Periodical) {
                return "Periodical";
            } else {
                return "";
            }
        }

    });

    c = new TableViewerColumn(itemViewer, SWT.NONE);
    c.getColumn().setText("Publication Date");
    layout.setColumnData(c.getColumn(), new ColumnWeightData(1, 120));
    c.setLabelProvider(new ObservableColumnLabelProvider(new IObservableMap[] { featItemPublicationDate },
            Arrays.asList(tplPublicationDate, tplNullValue)));

    MenuManager mgr = new MenuManager();
    itemViewer.getControl().setMenu(mgr.createContextMenu(itemViewer.getControl()));
    getSite().registerContextMenu("org.eclipse.emf.examples.library.databinding.stock", mgr, itemViewer);

    item.setControl(comp);
    itemViewer.setInput(EMFEditObservables.observeDetailList(Realm.getDefault(), domain, master,
            EXTLibraryPackage.Literals.LIBRARY__STOCK));
}

From source file:org.eclipse.emf.examples.library.databinding.writer.WriterForm.java

License:Open Source License

@Override
public void doCreateForm(TabFolder folder, TabItem item, final EditingDomain domain, DataBindingContext dbc,
        IObservableValue master) {//from  www.ja va2  s  .  c o  m

    IValueProperty textProp = WidgetProperties.text();
    dbc.bindValue(textProp.observe(item),
            EMFEditObservables.observeDetailValue(Realm.getDefault(), domain, master,
                    EXTLibraryPackage.Literals.LIBRARY__WRITERS),
            new UpdateValueStrategy(), new UpdateValueStrategy().setConverter(new LengthConverter()));

    Composite comp = new Composite(folder, SWT.NONE);
    TableColumnLayout layout = new TableColumnLayout();
    comp.setLayout(layout);

    writerViewer = new TableViewer(comp, SWT.FULL_SELECTION | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
    writerViewer.getTable().setHeaderVisible(true);
    writerViewer.getTable().setLinesVisible(true);

    Color color = comp.getDisplay().getSystemColor(SWT.COLOR_LIST_SELECTION);
    final Color bg = new Color(comp.getDisplay(),
            new RGB(color.getRed() - 50, color.getGreen() - 50, color.getBlue() - 50));

    writerViewer.getControl().addDisposeListener(new DisposeListener() {

        public void widgetDisposed(DisposeEvent e) {
            bg.dispose();
        }
    });

    TableViewerFocusCellManager focusCellManager = new TableViewerFocusCellManager(writerViewer,
            new FocusCellOwnerDrawHighlighter(writerViewer) {
                @Override
                protected Color getSelectedCellBackgroundColor(ViewerCell cell) {
                    return bg;
                }
            });
    ColumnViewerEditorActivationStrategy actSupport = new ColumnViewerEditorActivationStrategy(writerViewer) {
        protected boolean isEditorActivationEvent(ColumnViewerEditorActivationEvent event) {
            boolean rv = false;

            if (event.eventType == ColumnViewerEditorActivationEvent.MOUSE_CLICK_SELECTION) {
                rv = (((MouseEvent) event.sourceEvent).stateMask & SWT.MOD1) == SWT.MOD1;
            }

            return rv || event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL
                    || (event.eventType == ColumnViewerEditorActivationEvent.KEY_PRESSED
                            && event.keyCode == SWT.CR)
                    || event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
        }
    };

    TableViewerEditor.create(writerViewer, focusCellManager, actSupport, ColumnViewerEditor.TABBING_HORIZONTAL
            //| ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
            | ColumnViewerEditor.TABBING_VERTICAL | ColumnViewerEditor.KEYBOARD_ACTIVATION);

    IFocusService focusService = (IFocusService) getSite().getService(IFocusService.class);
    focusService.addFocusTracker(writerViewer.getControl(), WRITER_TABLE);

    ObservableListContentProvider cp = new ObservableListContentProvider();
    writerViewer.setContentProvider(cp);

    ConditionalTemplate[] tpl = new ConditionalTemplate[3];
    tpl[0] = new ConditionalTemplate("${0}") {

        @Override
        public boolean isTemplate(EObject element) {
            return element instanceof Writer && ((Writer) element).getFirstName() != null;
        }

    };
    tpl[1] = new ConditionalTemplate("${0}") {

        @Override
        public boolean isTemplate(EObject element) {
            return element instanceof Writer && ((Writer) element).getLastName() != null;
        }

    };
    tpl[2] = new ConditionalTemplate("-") {

        @Override
        public boolean isTemplate(EObject element) {
            return true;
        }

    };

    EStructuralFeature[] features = new EStructuralFeature[2];
    features[0] = EXTLibraryPackage.Literals.PERSON__FIRST_NAME;
    features[1] = EXTLibraryPackage.Literals.PERSON__LAST_NAME;

    IObservableMap[] map = EMFEditObservables.observeMaps(domain, cp.getKnownElements(), features);

    TableViewerColumn c = new TableViewerColumn(writerViewer, SWT.NONE);
    c.getColumn().setText("Firstname");
    layout.setColumnData(c.getColumn(), new ColumnWeightData(1, 120));
    c.setLabelProvider(
            new ObservableColumnLabelProvider(new IObservableMap[] { map[0] }, Arrays.asList(tpl[0], tpl[2])));

    final TextCellEditor editor = new TextCellEditor(writerViewer.getTable());

    ObservableValueEditingSupport o = new ObservableValueEditingSupport(writerViewer, dbc) {

        @Override
        protected CellEditor getCellEditor(Object element) {
            return editor;
        }

        @Override
        protected IObservableValue doCreateElementObservable(Object element, ViewerCell cell) {
            return EMFEditObservables.observeValue(domain, (EObject) element,
                    EXTLibraryPackage.Literals.PERSON__FIRST_NAME);
        }

        @Override
        protected IObservableValue doCreateCellEditorObservable(CellEditor cellEditor) {
            return SWTObservables.observeText(cellEditor.getControl());
        }
    };
    c.setEditingSupport(o);

    c = new TableViewerColumn(writerViewer, SWT.NONE);
    c.getColumn().setText("Lastname");
    layout.setColumnData(c.getColumn(), new ColumnWeightData(1, 120));
    c.setLabelProvider(
            new ObservableColumnLabelProvider(new IObservableMap[] { map[1] }, Arrays.asList(tpl[1], tpl[2])));
    o = new ObservableValueEditingSupport(writerViewer, dbc) {

        @Override
        protected CellEditor getCellEditor(Object element) {
            return editor;
        }

        @Override
        protected IObservableValue doCreateElementObservable(Object element, ViewerCell cell) {
            return EMFEditObservables.observeValue(domain, (EObject) element,
                    EXTLibraryPackage.Literals.PERSON__LAST_NAME);
        }

        @Override
        protected IObservableValue doCreateCellEditorObservable(CellEditor cellEditor) {
            return SWTObservables.observeText(cellEditor.getControl());
        }
    };
    c.setEditingSupport(o);

    MenuManager mgr = new MenuManager();
    writerViewer.getControl().setMenu(mgr.createContextMenu(writerViewer.getControl()));
    getSite().registerContextMenu("org.eclipse.emf.examples.library.databinding.writer", mgr, writerViewer);

    writerViewer.setInput(EMFEditObservables.observeDetailList(Realm.getDefault(), domain, master,
            EXTLibraryPackage.Literals.LIBRARY__WRITERS));
    item.setControl(comp);

}

From source file:org.eclipse.emfforms.spi.view.control.multiattribute.MultiAttributeSWTRenderer.java

License:Open Source License

private void createContent(Composite composite, EAttribute attribute, IObservableList list) {
    tableViewer = new TableViewer(composite, SWT.MULTI | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.BORDER);
    tableViewer.getTable().setData(CUSTOM_VARIANT, "org_eclipse_emf_ecp_control_multiattribute"); //$NON-NLS-1$
    tableViewer.getTable().setHeaderVisible(true);
    tableViewer.getTable().setLinesVisible(true);

    final ColumnViewerEditorActivationStrategy actSupport = new ColumnViewerEditorActivationStrategy(
            tableViewer) {//from  www  .j a  va 2  s .  c o m
        @Override
        protected boolean isEditorActivationEvent(ColumnViewerEditorActivationEvent event) {
            return event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL
                    || event.eventType == ColumnViewerEditorActivationEvent.MOUSE_CLICK_SELECTION
                    || event.eventType == ColumnViewerEditorActivationEvent.KEY_PRESSED
                            && event.keyCode == SWT.CR
                    || event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
        }
    };

    TableViewerEditor.create(tableViewer, null, actSupport,
            ColumnViewerEditor.TABBING_HORIZONTAL | ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
                    | ColumnViewerEditor.TABBING_VERTICAL | ColumnViewerEditor.KEYBOARD_ACTIVATION);
    ColumnViewerToolTipSupport.enableFor(tableViewer);

    final ObservableListContentProvider cp = new ObservableListContentProvider();

    final EMFFormsLabelProvider labelService = getEMFFormsLabelProvider();

    final TableViewerColumn column = new TableViewerColumn(tableViewer, SWT.NONE);
    column.getColumn().setResizable(false);
    column.getColumn().setMoveable(false);

    final EClass clazz = attribute.getEContainingClass();
    InternalEObject tempInstance = null;
    if (!clazz.isAbstract() && !clazz.isInterface()) {
        tempInstance = getInstanceOf(clazz);
    }

    final CellEditor cellEditor = createCellEditor(tempInstance, attribute, tableViewer.getTable());

    @SuppressWarnings("deprecation")
    final IObservableValue textObservableValue = org.eclipse.jface.databinding.swt.SWTObservables
            .observeText(column.getColumn());
    @SuppressWarnings("deprecation")
    final IObservableValue tooltipObservableValue = org.eclipse.jface.databinding.swt.SWTObservables
            .observeTooltipText(column.getColumn());
    try {
        viewModelDBC.bindValue(textObservableValue, labelService.getDisplayName(
                getVElement().getDomainModelReference(), getViewModelContext().getDomainModel()));

        viewModelDBC.bindValue(tooltipObservableValue, labelService.getDescription(
                getVElement().getDomainModelReference(), getViewModelContext().getDomainModel()));
    } catch (final NoLabelFoundException e) {
        getReportService().report(new RenderingFailedReport(e));
    }

    tableViewer.setLabelProvider(labelProvider);
    tableViewer.setContentProvider(cp);
    tableViewer.setInput(list);

    final TableColumnLayout layout = new TableColumnLayout();
    composite.setLayout(layout);
    layout.setColumnData(column.getColumn(), new ColumnWeightData(1, false));

    final VDomainModelReference dmr = getVElement().getDomainModelReference();
    final EditingSupport observableSupport = new ECPListEditingSupport(tableViewer, cellEditor, getVElement(),
            dmr, list);
    column.setEditingSupport(observableSupport);

}

From source file:org.eclipse.epp.internal.logging.aeri.ui.ReportDialog.java

License:Open Source License

private Composite createTableComposite(Composite parent) {
    Composite tableComposite = new Composite(parent, SWT.NONE);
    tableViewer = new TableViewer(tableComposite,
            SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.BORDER);
    TableViewerColumn column = new TableViewerColumn(tableViewer, SWT.NONE);
    column.setLabelProvider(new ColumnLabelProvider() {

        @Override/*from w ww.j  ava2s  .co m*/
        public String getText(Object element) {
            ErrorReport event = (ErrorReport) element;
            return event.getStatus().getMessage();
        }

        @Override
        public Image getImage(Object element) {
            return ERROR_ICON;
        }
    });
    TableColumnLayout tableColumnLayout = new TableColumnLayout();
    tableColumnLayout.setColumnData(column.getColumn(), new ColumnWeightData(100));
    tableComposite.setLayout(tableColumnLayout);
    tableViewer.setContentProvider(new ObservableListContentProvider());
    tableViewer.setInput(errors);
    tableViewer.addSelectionChangedListener(new ISelectionChangedListener() {

        @Override
        public void selectionChanged(SelectionChangedEvent event) {
            IStructuredSelection selection = (IStructuredSelection) tableViewer.getSelection();
            if (!selection.isEmpty() && selection.size() == 1) {
                selectedErrorReport.setValue(selection.getFirstElement());
            } else {
                selectedErrorReport.setValue(null);
            }
        }

    });
    tableViewer.getControl().addKeyListener(new KeyAdapter() {

        @Override
        public void keyPressed(KeyEvent e) {
            if (e.keyCode == SWT.DEL || e.keyCode == SWT.BS) {
                deleteSelection();
            }
        }

        private void deleteSelection() {
            IStructuredSelection selection = (IStructuredSelection) tableViewer.getSelection();
            errors.removeAll(selection.toList());
            selectedErrorReport.setValue(null);
        }

    });
    return tableComposite;
}

From source file:org.eclipse.incquery.tooling.ui.queryexplorer.content.detail.DetailsViewerUtil.java

License:Open Source License

public void prepareFor(PatternMatchContent match, TableViewer viewer) {
    clearTableViewerColumns(viewer);/*from   ww w. ja va  2s.c o  m*/
    String[] titles = { "Parameter", "Value" };
    createColumns(viewer, titles);
    viewer.setUseHashlookup(true);
    viewer.setColumnProperties(titles);
    viewer.setContentProvider(new ObservableListContentProvider());
    viewer.setLabelProvider(new DetailElementLabelProvider());
    viewer.setCellModifier(new DetailElementCellModifier());
    viewer.setComparator(new ViewerComparator(new DetailComparator(match.getPatternMatch().parameterNames())));

    DatabindingAdapter<IPatternMatch> databindableMatcher = DisplayUtil
            .getDatabindingAdapter(match.getPatternMatch().patternName());// , match.getParent().isGenerated());

    if (databindableMatcher == null) {
        viewer.setInput(null);
    } else {
        DetailObserver observer = new DetailObserver(databindableMatcher, match);
        viewer.setInput(observer);
    }
}

From source file:org.eclipse.incquery.tooling.ui.queryexplorer.content.detail.TableViewerUtil.java

License:Open Source License

public void prepareTableViewerForObservableInput(final ObservablePatternMatch match, TableViewer viewer) {
    clearTableViewerColumns(viewer);// w w w .  j ava 2  s. com
    String[] titles = { "Parameter", "Value" };
    createColumns(viewer, titles);
    viewer.setUseHashlookup(true);
    viewer.setColumnProperties(titles);
    viewer.setContentProvider(new ObservableListContentProvider());
    viewer.setLabelProvider(new DetailElementLabelProvider());
    viewer.setCellModifier(new DetailElementCellModifier());
    viewer.setComparator(new ViewerComparator(new DetailComparator(match.getPatternMatch().parameterNames())));

    DatabindingAdapter<IPatternMatch> databindableMatcher = DatabindingUtil
            .getDatabindingAdapter(match.getPatternMatch().patternName(), match.getParent().isGenerated());

    if (databindableMatcher == null) {
        viewer.setInput(null);
    } else {
        DetailObserver observer = new DetailObserver(databindableMatcher, match);
        viewer.setInput(observer);
    }
}

From source file:org.eclipse.internal.cbmc.view.LoopsTableViewer.java

License:Open Source License

private void init() {
    cp = new ObservableListContentProvider();
    this.getTable().setHeaderVisible(true);
    createTableViewerColumn(CbmcPackage.Literals.LOOP__UNWIND, Messages.LoopsTableViewer_headerUnwind, 80, 0,
            true);//from   w w w .j a  v a  2 s  .  c  o m
    createTableViewerColumn(CbmcPackage.Literals.LOOP__FILENAME, Messages.LoopsTableViewer_headerFile, 80, 1,
            false);
    createTableViewerColumn(CbmcPackage.Literals.LOOP__FUNCTION, Messages.LoopsTableViewer_headerFunction, 80,
            2, false);
    createTableViewerColumn(CbmcPackage.Literals.LOOP__LINE, Messages.LoopsTableViewer_headerLine, 80, 3,
            false);
    comparator = new LoopsViewerComparator();
    setComparator(comparator);
    setContentProvider(cp);
}

From source file:org.eclipse.jface.examples.databinding.snippets.Snippet007ColorLabelProvider.java

License:Open Source License

/**
 * @param args//from   w w  w  . ja v a  2  s .c  o m
 */
@SuppressWarnings("unchecked")
public static void main(String[] args) {
    final List<Person> persons = new ArrayList<>();
    persons.add(new Person("Fiona Apple", Person.FEMALE));
    persons.add(new Person("Elliot Smith", Person.MALE));
    persons.add(new Person("Diana Krall", Person.FEMALE));
    persons.add(new Person("David Gilmour", Person.MALE));

    final Display display = new Display();
    Realm.runWithDefault(DisplayRealm.getRealm(display), () -> {
        Shell shell = new Shell(display);
        shell.setText("Gender Bender");
        shell.setLayout(new GridLayout());

        Table table = new Table(shell, SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
        GridData gridData = new GridData(SWT.FILL, SWT.FILL, true, true);
        table.setLayoutData(gridData);
        table.setHeaderVisible(true);
        table.setLinesVisible(true);
        TableColumn column = new TableColumn(table, SWT.NONE);
        column.setText("No");
        column.setWidth(20);
        column = new TableColumn(table, SWT.NONE);
        column.setText("Name");
        column.setWidth(100);
        final TableViewer viewer = new TableViewer(table);

        IObservableList<Person> observableList = Observables.staticObservableList(persons);
        ObservableListContentProvider<Person> contentProvider = new ObservableListContentProvider<>();

        viewer.setContentProvider(contentProvider);

        // this does not have to correspond to the columns in the table,
        // we just list all attributes that affect the table content.
        IObservableMap<Person, ?>[] attributes = new IObservableMap[2];
        attributes[0] = BeanProperties.value(Person.class, "name")
                .observeDetail(contentProvider.getKnownElements());
        attributes[1] = BeanProperties.value(Person.class, "gender")
                .observeDetail(contentProvider.getKnownElements());

        class ColorLabelProvider extends ObservableMapLabelProvider implements ITableColorProvider {
            Color male = display.getSystemColor(SWT.COLOR_BLUE);

            Color female = new Color(display, 255, 192, 203);

            ColorLabelProvider(IObservableMap<?, ?>[] attributes) {
                super(attributes);
            }

            // to drive home the point that attributes does not have to
            // match
            // the columns
            // in the table, we change the column text as follows:
            @Override
            public String getColumnText(Object element, int index) {
                if (index == 0) {
                    return Integer.toString(persons.indexOf(element) + 1);
                }
                return ((Person) element).getName();
            }

            @Override
            public Color getBackground(Object element, int index) {
                return null;
            }

            @Override
            public Color getForeground(Object element, int index) {
                if (index == 0)
                    return null;
                Person person = (Person) element;
                return (person.getGender() == Person.MALE) ? male : female;
            }

            @Override
            public void dispose() {
                super.dispose();
                female.dispose();
            }
        }
        viewer.setLabelProvider(new ColorLabelProvider(attributes));

        viewer.setInput(observableList);

        table.getColumn(0).pack();

        Button button = new Button(shell, SWT.PUSH);
        button.setText("Toggle Gender");
        button.addSelectionListener(new SelectionAdapter() {
            @Override
            public void widgetSelected(SelectionEvent arg0) {
                IStructuredSelection selection = viewer.getStructuredSelection();
                if (selection != null && !selection.isEmpty()) {
                    Person person = (Person) selection.getFirstElement();
                    person.setGender((person.getGender() == Person.MALE) ? Person.FEMALE : Person.MALE);
                }
            }
        });

        shell.setSize(300, 400);
        shell.open();

        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
    });
    display.dispose();
}

From source file:org.eclipse.jface.examples.databinding.snippets.Snippet021MultiFieldValidation.java

License:Open Source License

private void bindSumAndAddendsGroup(DataBindingContext dbc) {
    IObservableValue<String> targetSum = WidgetProperties.text(SWT.Modify).observe(sumTarget);
    final IObservableValue<Integer> middleSum = new WritableValue<>(0, Integer.TYPE);
    dbc.bindValue(targetSum, middleSum);

    final IObservableList<Integer> targetAddends = new WritableList<>(new ArrayList<>(), Integer.TYPE);
    addendsTarget.setContentProvider(new ObservableListContentProvider<>());
    addendsTarget.setInput(targetAddends);

    addAddendButton.addSelectionListener(new SelectionAdapter() {
        @Override/*from  www.  ja  v  a  2  s . com*/
        public void widgetSelected(final SelectionEvent e) {
            InputDialog dialog = new InputDialog(getShell(), "Input addend", "Enter an integer addend", "0",
                    newText -> {
                        try {
                            Integer.valueOf(newText);
                            return null;
                        } catch (NumberFormatException e1) {
                            return "Enter a number between " + Integer.MIN_VALUE + " and " + Integer.MAX_VALUE;
                        }
                    });
            if (dialog.open() == Window.OK) {
                targetAddends.add(Integer.valueOf(dialog.getValue()));
            }
        }
    });

    removeAddendButton.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetSelected(SelectionEvent e) {
            IStructuredSelection selection = addendsTarget.getStructuredSelection();
            if (!selection.isEmpty())
                targetAddends.remove(selection.getFirstElement());
        }
    });

    IObservableValue<Integer> modelSum = new WritableValue<>(Integer.valueOf(5), Integer.TYPE);
    dbc.bindValue(WidgetProperties.text(SWT.Modify).observe(sumModelValue), modelSum);

    IObservableList<Integer> modelAddends = new WritableList<>(new ArrayList<>(), Integer.TYPE);

    MultiValidator validator = new MultiValidator() {
        @Override
        protected IStatus validate() {
            int sum = middleSum.getValue();
            int actualSum = 0;
            for (int i : targetAddends) {
                actualSum += i;
            }
            if (sum != actualSum)
                return ValidationStatus.error("Sum of addends is " + actualSum + ", expecting " + sum);
            return ValidationStatus.ok();
        }
    };
    dbc.addValidationStatusProvider(validator);

    addendsModelValue.setContentProvider(new ObservableListContentProvider<>());
    addendsModelValue.setInput(modelAddends);

    dbc.bindValue(validator.observeValidatedValue(middleSum), modelSum);
    dbc.bindList(validator.observeValidatedList(targetAddends), modelAddends);
}

From source file:org.eclipse.jface.examples.databinding.snippets.Snippet022ComputedListCombo.java

License:Open Source License

/**
 * @param shell/*from w w  w.  j av a 2s.c  om*/
 */
protected void createControls(Shell shell) {
    Composite composite = new Composite(shell, SWT.NONE);
    Group group = new Group(composite, SWT.NONE);
    group.setText("Filter");
    Button male = new Button(group, SWT.CHECK);
    male.setText("Male");
    Button female = new Button(group, SWT.CHECK);
    female.setText("Female");
    final IObservableValue<Boolean> femaleObservable = WidgetProperties.buttonSelection().observe(female);
    final IObservableValue<Boolean> maleObservable = WidgetProperties.buttonSelection().observe(male);
    Combo combo = new Combo(composite, SWT.DROP_DOWN | SWT.READ_ONLY);
    GridDataFactory.defaultsFor(combo).align(SWT.BEGINNING, SWT.BEGINNING).applyTo(combo);
    ComboViewer viewer = new ComboViewer(combo);
    viewer.setContentProvider(new ObservableListContentProvider<>());
    // We should really have an out-of-the box filtered list...
    IObservableList<Thing> filteredList = new ComputedList<Thing>() {
        @Override
        protected List<Thing> calculate() {
            List<Thing> result = new ArrayList<>();
            for (Thing thing : model) {
                if (femaleObservable.getValue() && !thing.female)
                    continue;
                if (maleObservable.getValue() && !thing.male)
                    continue;
                result.add(thing);
            }
            return result;
        }
    };
    viewer.setInput(filteredList);
    GridLayoutFactory.swtDefaults().applyTo(group);
    GridLayoutFactory.swtDefaults().applyTo(composite);
}