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/*******************************************************************************
* Copyright (c) 2008, 2018 Matthew Hall and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Matthew Hall - initial API and implementation (bug 249992)
* Matthew Hall - bug 260329
* Simon Scholz <simon.scholz@vogella.com> - Bug 434283
******************************************************************************/
package org.eclipse.jface.examples.databinding.snippets;
import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.core.databinding.observable.value.SelectObservableValue;
import org.eclipse.jface.databinding.swt.DisplayRealm;
import org.eclipse.jface.databinding.swt.typed.WidgetProperties;
import org.eclipse.jface.databinding.viewers.typed.ViewerProperties;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ListViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Shell;
/**
* Demonstrate usage of SelectObservableValue
*/
public class Snippet024SelectObservableValue {
public static void main(String[] args) {
final Display display = Display.getDefault();
Realm.runWithDefault(DisplayRealm.getRealm(display), () -> {
Shell shell = createShell();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
});
display.dispose();
}
private static Shell createShell() {
Shell shell = new Shell();
shell.setSize(400, 300);
shell.setLayout(new GridLayout(2, true));
shell.setText("Snippet024SelectObservableValue");
final ListViewer listViewer = new ListViewer(shell, SWT.BORDER);
listViewer.setContentProvider(ArrayContentProvider.getInstance());
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 bindingContext = new DataBindingContext();
bindingContext.bindValue(radioGroup, listViewerSelection);
shell.open();
return shell;
}
public static class Color {
public static final Color RED = new Color("Red");
public static final Color ORANGE = new Color("Orange");
public static final Color YELLOW = new Color("Yellow");
public static final Color GREEN = new Color("Green");
public static final Color BLUE = new Color("Blue");
public static final Color INDIGO = new Color("Indigo");
public static final Color VIOLET = new Color("Violet");
private final String name;
private Color(String name) {
this.name = name;
}
@Override
public String toString() {
return name;
}
public static Color[] values() {
return new Color[] { RED, ORANGE, YELLOW, GREEN, BLUE, INDIGO, VIOLET };
}
}
}
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