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1 files changed, 207 insertions, 0 deletions

diff --git a/libjava/classpath/javax/swing/text/Caret.java b/libjava/classpath/javax/swing/text/Caret.java
new file mode 100644
index 000000000..06972f904
--- /dev/null
+++ b/libjava/classpath/javax/swing/text/Caret.java
@@ -0,0 +1,207 @@
+/* Caret.java --
+   Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
+
+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.swing.text;
+
+import java.awt.Graphics;
+import java.awt.Point;
+
+import javax.swing.event.ChangeListener;
+
+/**
+ * Defines the method to be implemented by a caret that can be used in Swing
+ * text components.
+ *
+ * @author original author unknown
+ * @author Roman Kennke (roman@kennke.org)
+ */
+public interface Caret
+{
+  /**
+   * Registers a {@link ChangeListener} that is notified whenever that state
+   * of this <code>Caret</code> changes.
+   *
+   * @param l the listener to register to this caret
+   */
+  void addChangeListener(ChangeListener l);
+
+  /**
+   * Removes a {@link ChangeListener} from the list of registered listeners.
+   *
+   * @param l the listener to remove
+   */
+  void removeChangeListener(ChangeListener l);
+
+  /**
+   * Installs this <code>Caret</code> on the specified text component. This
+   * usually involves setting up listeners.
+   *
+   * This method is called by {@link JTextComponent#setCaret(Caret)} after
+   * this caret has been set on the text component.
+   *
+   * @param c the text component to install this caret to
+   */
+  void install(JTextComponent c);
+
+  /**
+   * Deinstalls this <code>Caret</code> from the specified text component.
+   * This usually involves removing listeners from the text component.
+   *
+   * This method is called by {@link JTextComponent#setCaret(Caret)} before
+   * this caret is removed from the text component.
+   *
+   * @param c the text component to deinstall this caret from
+   */
+  void deinstall(JTextComponent c);
+
+  /**
+   * Returns the blink rate of this <code>Caret</code> in milliseconds.
+   * A value of <code>0</code> means that the caret does not blink.
+   *
+   * @return the blink rate of this <code>Caret</code> or <code>0</code> if
+   *         this caret does not blink
+   */
+  int getBlinkRate();
+
+  /**
+   * Sets the blink rate of this <code>Caret</code> in milliseconds.
+   * A value of <code>0</code> means that the caret does not blink.
+   *
+   * @param rate the new blink rate to set
+   */
+  void setBlinkRate(int rate);
+
+  /**
+   * Returns the current position of this <code>Caret</code> within the
+   * <code>Document</code>.
+   *
+   * @return the current position of this <code>Caret</code> within the
+   *         <code>Document</code>
+   */
+  int getDot();
+
+  /**
+   * Sets the current position of this <code>Caret</code> within the
+   * <code>Document</code>. This also sets the <code>mark</code> to the
+   * new location.
+   *
+   * @param dot the new position to be set
+   *
+   * @see #moveDot(int)
+   */
+  void setDot(int dot);
+
+  /**
+   * Moves the <code>dot</code> location without touching the
+   * <code>mark</code>. This is used when making a selection.
+   *
+   * @param dot the location where to move the dot
+   *
+   * @see #setDot(int)
+   */
+  void moveDot(int dot);
+
+  /**
+   * Returns the current position of the <code>mark</code>. The
+   * <code>mark</code> marks the location in the <code>Document</code> that
+   * is the end of a selection. If there is no selection, the <code>mark</code>
+   * is the same as the <code>dot</code>.
+   *
+   * @return the current position of the mark
+   */
+  int getMark();
+
+  /**
+   * Returns the current visual position of this <code>Caret</code>.
+   *
+   * @return the current visual position of this <code>Caret</code>
+   *
+   * @see #setMagicCaretPosition
+   */
+  Point getMagicCaretPosition();
+
+  /**
+   * Sets the current visual position of this <code>Caret</code>.
+   *
+   * @param p the Point to use for the saved location. May be <code>null</code>
+   *        to indicate that there is no visual location
+   */
+  void setMagicCaretPosition(Point p);
+
+  /**
+   * Returns <code>true</code> if the selection is currently visible,
+   * <code>false</code> otherwise.
+   *
+   * @return <code>true</code> if the selection is currently visible,
+   *         <code>false</code> otherwise
+   */
+  boolean isSelectionVisible();
+
+  /**
+   * Sets the visiblity state of the selection.
+   *
+   * @param v <code>true</code> if the selection should be visible,
+   *        <code>false</code> otherwise
+   */
+  void setSelectionVisible(boolean v);
+
+  /**
+   * Returns <code>true</code> if this <code>Caret</code> is currently visible,
+   * and <code>false</code> if it is not.
+   *
+   * @return <code>true</code> if this <code>Caret</code> is currently visible,
+   *         and <code>false</code> if it is not
+   */
+  boolean isVisible();
+
+  /**
+   * Sets the visibility state of the caret. <code>true</code> shows the
+   * <code>Caret</code>, <code>false</code> hides it.
+   *
+   * @param v the visibility to set
+   */
+  void setVisible(boolean v);
+
+  /**
+   * Paints this <code>Caret</code> to the specified <code>Graphics</code>
+   * context.
+   *
+   * @param g the graphics context to render to
+   */
+  void paint(Graphics g);
+}