Example usage for org.eclipse.jface.databinding.viewers.typed ViewerProperties singleSelection

Introduction

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

Prototype

public static <S extends ISelectionProvider, T> IViewerValueProperty<S, T> singleSelection(
        Class<T> elementType) 

Source Link

Document

An alternative version of #singleSelection() which casts the property to the argument element type.

Usage

From source file:org.eclipse.jface.examples.databinding.snippets.Snippet010MasterDetail.java

License:Open Source License

public static void main(String[] args) {
    final Display display = new Display();
    Realm.runWithDefault(DisplayRealm.getRealm(display), () -> {
        Shell shell = new Shell(display);
        shell.setLayout(new GridLayout());

        Person[] persons = new Person[] { new Person("Me"), new Person("Myself"), new Person("I") };

        ListViewer viewer = new ListViewer(shell);
        viewer.setContentProvider(new ArrayContentProvider());
        viewer.setInput(persons);/*from  w  w w . j  a  va 2 s .co m*/

        Text name = new Text(shell, SWT.BORDER | SWT.READ_ONLY);

        // 1. Observe changes in selection.
        IObservableValue<Person> selection = ViewerProperties.singleSelection(Person.class).observe(viewer);

        // 2. Observe the name property of the current selection.
        IObservableValue<String> detailObservable = BeanProperties.value(Person.class, "name", String.class)
                .observeDetail(selection);

        // 3. Bind the Text widget to the name detail (selection's
        // name).
        new DataBindingContext().bindValue(WidgetProperties.text(SWT.NONE).observe(name), detailObservable,
                new UpdateValueStrategy<>(false, UpdateValueStrategy.POLICY_NEVER), null);

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

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From source file:org.eclipse.jface.examples.databinding.snippets.Snippet019TreeViewerWithListFactory.java

License:Open Source License

protected DataBindingContext initDataBindings() {
    IObservableValue<Bean> treeViewerSelectionObserveSelection = ViewerProperties.singleSelection(Bean.class)
            .observe(beanViewer);//from ww w. j  a va  2 s .co m
    IObservableValue<String> textTextObserveWidget = WidgetProperties.text(SWT.Modify).observe(beanText);
    IObservableValue<String> treeViewerValueObserveDetailValue = BeanProperties
            .value(Bean.class, "text", String.class).observeDetail(treeViewerSelectionObserveSelection);

    DataBindingContext bindingContext = new DataBindingContext();

    bindingContext.bindValue(textTextObserveWidget, treeViewerValueObserveDetailValue);

    return bindingContext;
}

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From source file:org.eclipse.jface.examples.databinding.snippets.Snippet019TreeViewerWithListFactory.java

License:Open Source License

private void initExtraBindings(DataBindingContext dbc) {
    final IObservableValue<Bean> beanViewerSelection = ViewerProperties.singleSelection(Bean.class)
            .observe(beanViewer);/*from w w w .j  a  v  a 2s  .  c om*/
    IObservableValue<Boolean> beanSelected = ComputedValue.create(() -> beanViewerSelection.getValue() != null);
    dbc.bindValue(WidgetProperties.enabled().observe(addChildBeanButton), beanSelected);
    dbc.bindValue(WidgetProperties.enabled().observe(removeBeanButton), beanSelected);

    clipboard = new WritableValue<>();
    dbc.bindValue(WidgetProperties.enabled().observe(copyButton), beanSelected);
    dbc.bindValue(WidgetProperties.enabled().observe(pasteButton),
            ComputedValue.create(() -> clipboard.getValue() != null));

    ViewerSupport.bind(beanViewer, input, BeanProperties.list("list", Bean.class),
            BeanProperties.value(Bean.class, "text"));
}

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From source file:org.eclipse.jface.examples.databinding.snippets.Snippet020TreeViewerWithSetFactory.java

License:Open Source License

private void initExtraBindings(DataBindingContext dbc) {
    final IObservableValue<Bean> beanViewerSelection = ViewerProperties.singleSelection(Bean.class)
            .observe(beanViewer);//w  ww  . j ava2  s.c  o  m
    IObservableValue<Boolean> beanSelected = ComputedValue.create(() -> beanViewerSelection.getValue() != null);
    dbc.bindValue(WidgetProperties.enabled().observe(addChildBeanButton), beanSelected);
    dbc.bindValue(WidgetProperties.enabled().observe(removeBeanButton), beanSelected);

    clipboard = new WritableValue<>();
    dbc.bindValue(WidgetProperties.enabled().observe(copyButton), beanSelected);
    dbc.bindValue(WidgetProperties.enabled().observe(pasteButton),
            ComputedValue.create(() -> clipboard.getValue() != null));

    ViewerSupport.bind(beanViewer, input, BeanProperties.set("set", Bean.class),
            BeanProperties.value(Bean.class, "text"));
}

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From source file:org.eclipse.jface.examples.databinding.snippets.Snippet024SelectObservableValue.java

License:Open Source License

protected void createContents() {
    shell = new Shell();
    shell.setSize(400, 300);//w w  w.j a v  a 2s  .  co m
    shell.setLayout(new GridLayout(2, true));
    shell.setText("Snippet024SelectObservableValue");

    final ListViewer listViewer = new ListViewer(shell, SWT.BORDER);
    listViewer.setContentProvider(new ArrayContentProvider());
    listViewer.getList().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

    final Group group = new Group(shell, SWT.NONE);
    group.setText("Radio Group");
    group.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
    group.setLayout(new GridLayout());

    // Data Binding
    Color[] colors = Color.values();

    listViewer.setInput(colors);
    IObservableValue<Color> listViewerSelection = ViewerProperties.singleSelection(Color.class)
            .observe(listViewer);

    SelectObservableValue<Color> radioGroup = new SelectObservableValue<>();
    for (Color color : colors) {
        Button button = new Button(group, SWT.RADIO);
        button.setText(color.toString());
        radioGroup.addOption(color, WidgetProperties.buttonSelection().observe(button));
    }

    DataBindingContext dbc = new DataBindingContext();
    dbc.bindValue(radioGroup, listViewerSelection);
}

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From source file:org.eclipse.jface.examples.databinding.snippets.Snippet035PostSelectionProvider.java

License:Open Source License

private void createFieldSection(Composite parent) {
    final Group section = createSectionGroup(parent, 2);

    // normal selection
    Label selectionLabel = createLabelField(section, "Selection:");
    IViewerObservableValue<String> selectionObservable = ViewerProperties.singleSelection(String.class)
            .observe(listViewer);/* ww  w  .j a  v  a  2  s. c  o  m*/
    dbc.bindValue(WidgetProperties.text().observe(selectionLabel), selectionObservable);

    // post selection
    Label postSelectionLabel = createLabelField(section, "Post selection:");
    IViewerObservableValue<String> postSelectionObservable = ViewerProperties.singlePostSelection(String.class)
            .observe(listViewer);
    dbc.bindValue(WidgetProperties.text().observe(postSelectionLabel), postSelectionObservable);
}

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