--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.desktop/share/classes/java/awt/CheckboxGroup.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,159 @@
+/*
+ * Copyright (c) 1995, 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package java.awt;
+
+/**
+ * The {@code CheckboxGroup} class is used to group together
+ * a set of {@code Checkbox} buttons.
+ * <p>
+ * Exactly one check box button in a {@code CheckboxGroup} can
+ * be in the "on" state at any given time. Pushing any
+ * button sets its state to "on" and forces any other button that
+ * is in the "on" state into the "off" state.
+ * <p>
+ * The following code example produces a new check box group,
+ * with three check boxes:
+ *
+ * <hr><blockquote><pre>
+ * setLayout(new GridLayout(3, 1));
+ * CheckboxGroup cbg = new CheckboxGroup();
+ * add(new Checkbox("one", cbg, true));
+ * add(new Checkbox("two", cbg, false));
+ * add(new Checkbox("three", cbg, false));
+ * </pre></blockquote><hr>
+ * <p>
+ * This image depicts the check box group created by this example:
+ * <p>
+ * <img src="doc-files/CheckboxGroup-1.gif"
+ * alt="Shows three checkboxes, arranged vertically, labeled one, two, and three. Checkbox one is in the on state."
+ * style="float:center; margin: 7px 10px;">
+ *
+ * @author Sami Shaio
+ * @see java.awt.Checkbox
+ * @since 1.0
+ */
+public class CheckboxGroup implements java.io.Serializable {
+ /**
+ * The current choice.
+ * @serial
+ * @see #getCurrent()
+ * @see #setCurrent(Checkbox)
+ */
+ Checkbox selectedCheckbox = null;
+
+ /*
+ * JDK 1.1 serialVersionUID
+ */
+ private static final long serialVersionUID = 3729780091441768983L;
+
+ /**
+ * Creates a new instance of {@code CheckboxGroup}.
+ */
+ public CheckboxGroup() {
+ }
+
+ /**
+ * Gets the current choice from this check box group.
+ * The current choice is the check box in this
+ * group that is currently in the "on" state,
+ * or {@code null} if all check boxes in the
+ * group are off.
+ * @return the check box that is currently in the
+ * "on" state, or {@code null}.
+ * @see java.awt.Checkbox
+ * @see java.awt.CheckboxGroup#setSelectedCheckbox
+ * @since 1.1
+ */
+ public Checkbox getSelectedCheckbox() {
+ return getCurrent();
+ }
+
+ /**
+ * Returns the current choice from this check box group
+ * or {@code null} if none of checkboxes are selected.
+ *
+ * @return the selected checkbox
+ * @deprecated As of JDK version 1.1,
+ * replaced by {@code getSelectedCheckbox()}.
+ */
+ @Deprecated
+ public Checkbox getCurrent() {
+ return selectedCheckbox;
+ }
+
+ /**
+ * Sets the currently selected check box in this group
+ * to be the specified check box.
+ * This method sets the state of that check box to "on" and
+ * sets all other check boxes in the group to be off.
+ * <p>
+ * If the check box argument is {@code null}, all check boxes
+ * in this check box group are deselected. If the check box argument
+ * belongs to a different check box group, this method does
+ * nothing.
+ * @param box the {@code Checkbox} to set as the
+ * current selection.
+ * @see java.awt.Checkbox
+ * @see java.awt.CheckboxGroup#getSelectedCheckbox
+ * @since 1.1
+ */
+ public void setSelectedCheckbox(Checkbox box) {
+ setCurrent(box);
+ }
+
+ /**
+ * Sets the currently selected check box in this group
+ * to be the specified check box and unsets all others.
+ *
+ * @param box the {@code Checkbox} to set as the
+ * current selection.
+ * @deprecated As of JDK version 1.1,
+ * replaced by {@code setSelectedCheckbox(Checkbox)}.
+ */
+ @Deprecated
+ public synchronized void setCurrent(Checkbox box) {
+ if (box != null && box.group != this) {
+ return;
+ }
+ Checkbox oldChoice = this.selectedCheckbox;
+ this.selectedCheckbox = box;
+ if (oldChoice != null && oldChoice != box && oldChoice.group == this) {
+ oldChoice.setState(false);
+ }
+ if (box != null && oldChoice != box && !box.getState()) {
+ box.setStateInternal(true);
+ }
+ }
+
+ /**
+ * Returns a string representation of this check box group,
+ * including the value of its current selection.
+ * @return a string representation of this check box group.
+ */
+ public String toString() {
+ return getClass().getName() + "[selectedCheckbox=" + selectedCheckbox + "]";
+ }
+
+}