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1 files changed, 175 insertions, 0 deletions

diff --git a/libjava/classpath/javax/accessibility/AccessibleStateSet.java b/libjava/classpath/javax/accessibility/AccessibleStateSet.java
new file mode 100644
index 000000000..83bf3d491
--- /dev/null
+++ b/libjava/classpath/javax/accessibility/AccessibleStateSet.java
@@ -0,0 +1,175 @@
+/* AccessibleStateSet.java -- the combined state of an accessible object
+   Copyright (C) 2002, 2005 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package javax.accessibility;
+
+import gnu.java.lang.CPStringBuilder;
+
+import java.util.Locale;
+import java.util.Vector;
+
+/**
+ * Describes all elements of an accessible object's state. For example, an
+ * object may be enabled and have focus.
+ *
+ * @author Eric Blake (ebb9@email.byu.edu)
+ * @see AccessibleState
+ * @since 1.2
+ * @status updated to 1.4
+ */
+public class AccessibleStateSet
+{
+  /**
+   * The list of states, should be instances of AccessibleState. Don't set
+   * this to null.
+   *
+   * @see #add(AccessibleState)
+   * @see #addAll(AccessibleState[])
+   * @see #remove(AccessibleState)
+   * @see #contains(AccessibleState)
+   * @see #toArray()
+   * @see #clear()
+   */
+  protected Vector<AccessibleState> states = new Vector<AccessibleState>();
+
+  /**
+   * Create an empty state set.
+   */
+  public AccessibleStateSet()
+  {
+  }
+
+  /**
+   * Create a state set initialized with the given states, duplicates are
+   * ignored.
+   *
+   * @param states the states to insert
+   * @throws NullPointerException if states is null
+   */
+  public AccessibleStateSet(AccessibleState[] states)
+  {
+    addAll(states);
+  }
+
+  /**
+   * Add a new state to the current set. Return true if the state was added,
+   * as duplicates are ignored. Entering a null state will cause problems
+   * later, so don't do it.
+   *
+   * @param state the state to add
+   * @return true if the state was added
+   */
+  public boolean add(AccessibleState state)
+  {
+    return states.contains(state) ? false : states.add(state);
+  }
+
+  /**
+   * Add all of the states to the current set. Duplicates are ignored.
+   * Entering a null state will cause problems later, so don't do it.
+   *
+   * @param array the array of states to add
+   * @throws NullPointerException if array is null
+   */
+  public void addAll(AccessibleState[] array)
+  {
+    int i = array.length;
+    while (--i >= 0)
+      add(array[i]);
+  }
+
+  /**
+   * Remove a state from the set. If a state was removed, return true.
+   *
+   * @param state the state to remove
+   * @return true if the set changed
+   */
+  public boolean remove(AccessibleState state)
+  {
+    return states.remove(state);
+  }
+
+  /**
+   * Clear all states in the set.
+   */
+  public void clear()
+  {
+    states.clear();
+  }
+
+  /**
+   * Check if the current state is in the set.
+   *
+   * @param state the state to locate
+   * @return true if it is in the set
+   */
+  public boolean contains(AccessibleState state)
+  {
+    return states.contains(state);
+  }
+
+  /**
+   * Return the state set as an array.
+   *
+   * @return an array of the current states
+   */
+  public AccessibleState[] toArray()
+  {
+    AccessibleState[] result = new AccessibleState[states.size()];
+    states.toArray(result);
+    return result;
+  }
+
+  /**
+   * Return a localized, comma-separated string representing all states
+   * in the set. This is in arbitrary order.
+   *
+   * @return the string representation
+   * @see AccessibleBundle#toDisplayString(String, Locale)
+   */
+  public String toString()
+  {
+    int i = states.size();
+    if (i == 0)
+      return "";
+    // Pre-allocate an average of 10 chars per state.
+    CPStringBuilder b = new CPStringBuilder(i * 10);
+    while (--i >= 0)
+      b.append(states.get(i)).append(',');
+    return b.substring(0, b.length() - 1);
+  }
+} // class AccessibleStateSet