Example usage for org.eclipse.jface.internal.databinding.provisional.swt CompositeUpdater CompositeUpdater

Introduction

In this page you can find the example usage for org.eclipse.jface.internal.databinding.provisional.swt CompositeUpdater CompositeUpdater.

Prototype

public CompositeUpdater(Composite toUpdate, IObservableList<? extends E> model) 

Source Link

Document

Creates an updater for the given control and list.

Usage

From source file:org.eclipse.jface.examples.databinding.snippets.Snippet012CompositeUpdater.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);

        final WritableList<Counter> list = new WritableList<>();

        Button button = new Button(shell, SWT.PUSH);
        button.setText("add");
        button.addSelectionListener(new SelectionAdapter() {
            @Override//from   ww  w .j av  a  2  s.c o m
            public void widgetSelected(org.eclipse.swt.events.SelectionEvent e) {
                list.add(0, new Counter());
            }
        });

        final Composite composite = new Composite(shell, SWT.None);

        // TODO: This class is marked as "NON-API", why is it used in a snippet?
        new CompositeUpdater<Counter>(composite, list) {
            @Override
            protected Widget createWidget(int index) {
                Label label = new Label(composite, SWT.BORDER);
                // requestLayout(label);
                return label;
            }

            @Override
            protected void updateWidget(Widget widget, Counter element) {
                ((Label) widget).setText(element.getValue() + "");
                requestLayout((Label) widget);
            }
        };
        GridLayoutFactory.fillDefaults().numColumns(10).generateLayout(composite);

        GridDataFactory.fillDefaults().grab(true, true).applyTo(composite);

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

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