1 files changed, 107 insertions, 0 deletions
diff --git a/org.mihalis.opal/src/main/java/org/mihalis/opal/preferenceWindow/widgets/PWRadio.java b/org.mihalis.opal/src/main/java/org/mihalis/opal/preferenceWindow/widgets/PWRadio.java
new file mode 100644
index 0000000..f364f26
--- /dev/null
+++ b/org.mihalis.opal/src/main/java/org/mihalis/opal/preferenceWindow/widgets/PWRadio.java
@@ -0,0 +1,107 @@
+/*******************************************************************************
+ * Copyright (c) 2011 Laurent CARON
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Laurent CARON (laurent.caron at gmail dot com) - Initial implementation and API
+ *******************************************************************************/
+package org.mihalis.opal.preferenceWindow.widgets;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+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.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Listener;
+import org.mihalis.opal.preferenceWindow.PreferenceWindow;
+
+/**
+ * Instances of this class are a group of radio buttons.
+ */
+public class PWRadio extends PWWidget {
+
+	/** The data. */
+	private final List<Object> data;
+	
+	/** The buttons. */
+	private final List<Button> buttons;
+
+	/**
+	 * Constructor.
+	 *
+	 * @param label associated label
+	 * @param prop the prop
+	 * @param values the values
+	 */
+	public PWRadio(final String label, final String prop, final Object... values) {
+		super(null, prop, label == null ? 1 : 2, false);
+		this.data = new ArrayList<Object>(Arrays.asList(values));
+		this.buttons = new ArrayList<Button>();
+	}
+
+	/**
+	 * Builds the.
+	 *
+	 * @param parent the parent
+	 * @return the control
+	 * @see org.mihalis.opal.preferenceWindow.widgets.PWWidget#build(org.eclipse.swt.widgets.Composite)
+	 */
+	@Override
+	public Control build(final Composite parent) {
+		buildLabel(parent, GridData.BEGINNING);
+
+		final Composite composite = new Composite(parent, SWT.NONE);
+		final GridLayout gridLayout = new GridLayout();
+		gridLayout.marginHeight = gridLayout.marginWidth = 0;
+		composite.setLayout(gridLayout);
+
+		for (final Object datum : this.data) {
+			final Button button = new Button(composite, SWT.RADIO);
+			addControl(button);
+			button.setText(datum.toString());
+			button.setLayoutData(new GridData(GridData.FILL, GridData.BEGINNING, true, false));
+			button.setSelection(datum.equals(PreferenceWindow.getInstance().getValueFor(getPropertyKey())));
+			button.setData(datum);
+			button.addListener(SWT.Selection, new Listener() {
+				@Override
+				public void handleEvent(final Event event) {
+					if (button.getSelection()) {
+						PreferenceWindow.getInstance().setValue(getPropertyKey(), button.getData());
+					}
+				}
+			});
+
+			this.buttons.add(button);
+		}
+		return composite;
+	}
+
+	/**
+	 * Check.
+	 *
+	 * @see org.mihalis.opal.preferenceWindow.widgets.PWWidget#check()
+	 */
+	@Override
+	public void check() {
+		final Object value = PreferenceWindow.getInstance().getValueFor(getPropertyKey());
+		if (value == null) {
+			PreferenceWindow.getInstance().setValue(getPropertyKey(), null);
+		} else {
+			if (!this.data.isEmpty()) {
+				if (!value.getClass().equals(this.data.get(0).getClass())) {
+					throw new UnsupportedOperationException("The property '" + getPropertyKey() + "' has to be a " + this.data.get(0).getClass() + " because it is associated to a combo");
+				}
+			}
+		}
+	}
+
+}