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1 files changed, 281 insertions, 0 deletions

diff --git a/libjava/classpath/javax/swing/plaf/TextUI.java b/libjava/classpath/javax/swing/plaf/TextUI.java
new file mode 100644
index 000000000..424cee92d
--- /dev/null
+++ b/libjava/classpath/javax/swing/plaf/TextUI.java
@@ -0,0 +1,281 @@
+/* TextUI.java --
+   Copyright (C) 2002, 2003, 2004  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.plaf;
+
+import java.awt.Point;
+import java.awt.Rectangle;
+import java.awt.Shape;
+
+import javax.swing.text.BadLocationException;
+import javax.swing.text.EditorKit;
+import javax.swing.text.JTextComponent;
+import javax.swing.text.Position;
+import javax.swing.text.View;
+
+/**
+ * An abstract base class for delegates that provide the user
+ * interface for text editors.
+ *
+ * @see javax.swing.text.JTextComponent
+ *
+ * @author Ronald Veldema (rveldema@cs.vu.nl)
+ * @author Sascha Brawer (brawer@dandelis.ch)
+ */
+public abstract class TextUI extends ComponentUI
+{
+  /**
+   * Constructs a new <code>TextUI</code>.
+   */
+  public TextUI()
+  {
+    // Nothing to do here.
+  }
+
+
+  /**
+   * Calculates the geometric extent of the character at the
+   * given offset.
+   *
+   * @param tc the <code>JTextComponent</code> for which this
+   *        delegate object provides the user interface.
+   *
+   * @param pos the zero-based index of the character into the
+   *        document model.
+   *
+   * @return the bounding box of the character at index
+   *         <code>pos</code>, in view coordinates.
+   *
+   * @throws BadLocationException if <code>pos</code> does not
+   *         designate a valid position in the document model.
+   *
+   * @see javax.swing.text.ComponentView#modelToView(int, Shape, Position.Bias)
+   */
+  public abstract Rectangle modelToView(JTextComponent tc, int pos)
+    throws BadLocationException;
+
+
+  /**
+   * Calculates the geometric extent of the character at the
+   * given offset.
+   *
+   * @param tc the <code>JTextComponent</code> for which this
+   *        delegate object provides the user interface.
+   *
+   * @param pos the zero-based index of the character into the
+   *        document model.
+   *
+   * @param bias whether to take the character before or after the
+   *        caret position indicated by <code>pos</code>.  The value
+   *        must be either {@link
+   *        javax.swing.text.Position.Bias#Backward} or {@link
+   *        javax.swing.text.Position.Bias#Forward}.
+   *
+   * @return the bounding box of the character at index
+   *         <code>pos</code>, in view coordinates.
+   *
+   * @throws BadLocationException if <code>pos</code> does not
+   *         designate a valid position in the document model.
+   *
+   * @see javax.swing.text.ComponentView#modelToView(int, Shape, Position.Bias)
+   */
+  public abstract Rectangle modelToView(JTextComponent tc, int pos,
+                                        Position.Bias bias)
+    throws BadLocationException;
+
+
+  /**
+   * Finds the caret position which is closest to the specified visual
+   * location.
+   *
+   * @param t the <code>JTextComponent</code> for which this
+   *        delegate object provides the user interface.
+   *
+   * @param pt the position in view coordinates.
+   *
+   * @return the caret position which is closest to <code>loc</code>.
+   *
+   * @see #viewToModel(JTextComponent, Point, Position.Bias[])
+   */
+  public abstract int viewToModel(JTextComponent t, Point pt);
+
+
+  /**
+   * Finds the caret position which is closest to the specified visual
+   * location.
+   *
+   * @param tc the <code>JTextComponent</code> for which this
+   *        delegate object provides the user interface.
+   *
+   * @param loc the position in view coordinates.
+   *
+   * @param outBias an array whose size must be at least one.
+   *        After the call, <code>outBias[0]</code> will indicate
+   *        whether <code>loc</code> is in the glyph before
+   *        (<code>Position.Bias.Backward</code>) or after
+   *        (<code>Position.Bias.Forward</code>) the returned
+   *        caret position.
+   *
+   * @return the caret position which is closest to <code>loc</code>.
+   */
+  public abstract int viewToModel(JTextComponent tc, Point loc,
+                                  Position.Bias[] outBias);
+
+
+
+  /**
+   * Calculates the caret position that is visually next to the given
+   * position. This is useful to determine where to move the caret
+   * after the user has pressed an arrow key.
+   *
+   * @param tc the <code>JTextComponent</code> for which this
+   *        delegate object provides the user interface.
+   *
+   * @param pos the current caret position, a zero-based index
+   *        into the document model.
+   *
+   * @param bias whether to take the character before or after the
+   *        caret position indicated by <code>pos</code>.  The value
+   *        must be either {@link
+   *        javax.swing.text.Position.Bias#Backward} or {@link
+   *        javax.swing.text.Position.Bias#Forward}.
+   *
+   * @param direction the visual direction. Pass
+   *        {@link javax.swing.SwingConstants#WEST} for the left
+   *        arrow key, {@link javax.swing.SwingConstants#EAST}
+   *        for the right arrow key, {@link
+   *        javax.swing.SwingConstants#NORTH} for the up arrow
+   *        key, or {@link javax.swing.SwingConstants#SOUTH}
+   *        for the down arrow key.
+   *
+   * @throws BadLocationException if <code>pos</code> does not
+   *         designate a valid position in the document model.
+   *
+   * @throws IllegalArgumentException if <code>direction</code>
+   *         is not one of <code>Position.Bias.Forward</code>
+   *         or <code>Position.Bias.Backward</code>.
+   */
+  public abstract int getNextVisualPositionFrom(JTextComponent tc,
+                                                int pos,
+                                                Position.Bias bias,
+                                                int direction,
+                                                Position.Bias[] outBias)
+    throws BadLocationException;
+
+
+  /**
+   * Repaints a range of characters.
+   *
+   * @param tc the <code>JTextComponent</code> for which this
+   *        delegate object provides the user interface.
+   *
+   * @param start the first character in the range that needs
+   *        painting, indicated as an index into the document model.
+   *
+   * @param end the last character in the range that needs
+   *        painting, indicated as an index into the document model.
+   *        <code>end</code> must be greater than or equal to
+   *        <code>start</code>.
+   */
+  public abstract void damageRange(JTextComponent tc, int start, int end);
+
+
+  /**
+   * Repaints a range of characters, also specifying the bias for the
+   * start and end of the range.
+   *
+   * @param tc the <code>JTextComponent</code> for which this
+   *        delegate object provides the user interface.
+   *
+   * @param start the first character in the range that needs
+   *        painting, indicated as an index into the document model.
+   *
+   * @param end the last character in the range that needs
+   *        painting, indicated as an index into the document model.
+   *        <code>end</code> must be greater than or equal to
+   *        <code>start</code>.
+   */
+  public abstract void damageRange(JTextComponent tc,
+                                   int start, int end,
+                                   Position.Bias startBias,
+                                   Position.Bias endBias);
+
+
+  /**
+   * Retrieves the <code>EditorKit</code> managing policies and
+   * persistent state.
+   *
+   * @param tc the <code>JTextComponent</code> for which this
+   *        delegate object provides the user interface.
+   *
+   * @return the <code>EditorKit</code> used by <code>tc</code>.
+   */
+  public abstract EditorKit getEditorKit(JTextComponent tc);
+
+
+  /**
+   * Retrieves the root of the view tree that visually presents
+   * the text.
+   *
+   * @param tc the <code>JTextComponent</code> for which this
+   *        delegate object provides the user interface.
+   *
+   * @return the root <code>View</code> used by <code>tc</code>.
+   */
+  public abstract View getRootView(JTextComponent tc);
+
+
+  /**
+   * Returns a String for presenting a tool tip at the specified
+   * location.
+   *
+   * @param tc the <code>JTextComponent</code> for which this
+   *        delegate object provides the user interface.
+   *
+   * @param loc the location for which the tool tip is requested.
+   *
+   * @return the text for the tool tip, or <code>null</code> to
+   *         display no tool tip.
+   *
+   * @since 1.4
+   */
+  public String getToolTipText(JTextComponent tc, Point loc)
+  {
+    return null;
+  }
+}