mirror of git://gcc.gnu.org/git/gcc.git
				
				
				
			
		
			
				
	
	
		
			333 lines
		
	
	
		
			8.5 KiB
		
	
	
	
		
			Java
		
	
	
	
			
		
		
	
	
			333 lines
		
	
	
		
			8.5 KiB
		
	
	
	
		
			Java
		
	
	
	
/* TextLayout.java --
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   Copyright (C) 2003, 2004  Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING.  If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library.  Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module.  An independent module is a module which is not derived from
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or based on this library.  If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so.  If you do not wish to do so, delete this
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exception statement from your version. */
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package java.awt.font;
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import gnu.java.awt.ClasspathToolkit;
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import gnu.java.awt.peer.ClasspathTextLayoutPeer;
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import java.awt.Font;
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import java.awt.Graphics2D;
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import java.awt.Shape;
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import java.awt.Toolkit;
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import java.awt.geom.AffineTransform;
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import java.awt.geom.Rectangle2D;
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import java.text.AttributedCharacterIterator;
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import java.text.AttributedString;
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import java.util.Map;
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/**
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 * @author Michael Koch
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 */
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public final class TextLayout implements Cloneable
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{
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  public static final CaretPolicy DEFAULT_CARET_POLICY = new CaretPolicy ();
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  ClasspathTextLayoutPeer peer;
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  public static class CaretPolicy
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  {
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    public CaretPolicy ()
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    {
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      // Do nothing here.
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    }
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    public TextHitInfo getStrongCaret (TextHitInfo hit1, TextHitInfo hit2,
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                                       TextLayout layout)
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    {
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      return layout.peer.getStrongCaret(hit1, hit2);
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    }
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  }
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  public TextLayout (AttributedCharacterIterator text, FontRenderContext frc)
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  {    
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    AttributedString as = new AttributedString (text);
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    ClasspathToolkit tk = (ClasspathToolkit)(Toolkit.getDefaultToolkit ());
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    peer = tk.getClasspathTextLayoutPeer(as, frc);
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  }
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  public TextLayout (String string, Font font, FontRenderContext frc) 
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  {
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    AttributedString as = new AttributedString (string);
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    as.addAttribute (TextAttribute.FONT, font);
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    ClasspathToolkit tk = (ClasspathToolkit)(Toolkit.getDefaultToolkit ());
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    peer = tk.getClasspathTextLayoutPeer(as, frc);
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  }
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  public TextLayout (String string, Map attributes, FontRenderContext frc)  
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  {
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    AttributedString as = new AttributedString (string, attributes);
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    ClasspathToolkit tk = (ClasspathToolkit)(Toolkit.getDefaultToolkit ());
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    peer = tk.getClasspathTextLayoutPeer(as, frc);
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  }
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  protected Object clone ()
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  {
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    try
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      {
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        TextLayout tl = (TextLayout) super.clone ();
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        tl.peer = (ClasspathTextLayoutPeer) this.peer.clone();
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        return tl;
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      }
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    catch (CloneNotSupportedException e)
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      {
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        // This should never occur
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        throw new InternalError ();
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      }
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  }
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  public void draw (Graphics2D g2, float x, float y) 
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  {
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    peer.draw(g2, x, y);
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  }
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  public boolean equals (Object obj)
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  {
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    if (! (obj instanceof TextLayout))
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      return false;
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    return equals ((TextLayout) obj);
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  }
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  public boolean equals (TextLayout tl)
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  {
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    return this.peer.equals(tl.peer);
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  }
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  public float getAdvance ()
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  {
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    return peer.getAdvance();
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  }
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  public float getAscent ()
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  {
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    return peer.getAscent();
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  }
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  public byte getBaseline ()
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  {
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    return peer.getBaseline();
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  }
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  public float[] getBaselineOffsets ()
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  {
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    return peer.getBaselineOffsets();
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  }
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  public Shape getBlackBoxBounds (int firstEndpoint, int secondEndpoint)
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  {
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    return peer.getBlackBoxBounds(firstEndpoint, secondEndpoint);
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  }
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  public Rectangle2D getBounds()
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  {
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    return peer.getBounds();
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  }
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  public float[] getCaretInfo (TextHitInfo hit)
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  {
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    return getCaretInfo(hit, getBounds());
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  }
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  public float[] getCaretInfo (TextHitInfo hit, Rectangle2D bounds)
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  {
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    return peer.getCaretInfo(hit, bounds);
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  }
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  public Shape getCaretShape (TextHitInfo hit)
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  {
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    return getCaretShape(hit, getBounds());
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  }
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  public Shape getCaretShape (TextHitInfo hit, Rectangle2D bounds)
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  {
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    return peer.getCaretShape(hit, bounds);
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  }
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  public Shape[] getCaretShapes (int offset)
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  {
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    return getCaretShapes(offset, getBounds());
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  }
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  public Shape[] getCaretShapes (int offset, Rectangle2D bounds)
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  {
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    return getCaretShapes(offset, getBounds(), DEFAULT_CARET_POLICY);
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  }
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  public Shape[] getCaretShapes (int offset, Rectangle2D bounds,
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                                 TextLayout.CaretPolicy policy)
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  {
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    return peer.getCaretShapes(offset, bounds, policy);
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  }
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  public int getCharacterCount ()
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  {
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    return peer.getCharacterCount();
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  }
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  public byte getCharacterLevel (int index)
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  {
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    return peer.getCharacterLevel(index);
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  }
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  public float getDescent ()
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  {
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    return peer.getDescent();
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  }
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  public TextLayout getJustifiedLayout (float justificationWidth)
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  {
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    return peer.getJustifiedLayout(justificationWidth);
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  }
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  public float getLeading ()
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  {
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    return peer.getLeading();
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  }
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  public Shape getLogicalHighlightShape (int firstEndpoint, int secondEndpoint)
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  {
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    return getLogicalHighlightShape (firstEndpoint, secondEndpoint, getBounds());
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  }
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  public Shape getLogicalHighlightShape (int firstEndpoint, int secondEndpoint,
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                                         Rectangle2D bounds)
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  {
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    return peer.getLogicalHighlightShape(firstEndpoint, secondEndpoint, bounds);
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  }
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  public int[] getLogicalRangesForVisualSelection (TextHitInfo firstEndpoint,
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                                                   TextHitInfo secondEndpoint)
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  {
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    return peer.getLogicalRangesForVisualSelection(firstEndpoint, secondEndpoint);
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  }
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  public TextHitInfo getNextLeftHit (int offset)
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  {
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    return getNextLeftHit(offset, DEFAULT_CARET_POLICY);
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  }
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  public TextHitInfo getNextLeftHit (int offset, TextLayout.CaretPolicy policy)
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  {
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    return peer.getNextLeftHit(offset, policy);
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  }
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  public TextHitInfo getNextLeftHit (TextHitInfo hit)
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  {
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    return getNextLeftHit(hit.getCharIndex());
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  }
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  public TextHitInfo getNextRightHit (int offset)
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  {
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    return getNextRightHit(offset, DEFAULT_CARET_POLICY);
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  }
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  public TextHitInfo getNextRightHit (int offset, TextLayout.CaretPolicy policy)
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  {
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    return peer.getNextRightHit(offset, policy);
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  }
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  public TextHitInfo getNextRightHit (TextHitInfo hit)
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  {
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    return getNextRightHit(hit.getCharIndex());
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  }
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  public Shape getOutline (AffineTransform tx)
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  {
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    return peer.getOutline(tx);
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  }
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  public float getVisibleAdvance ()
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  {
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    return peer.getVisibleAdvance();
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  }
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  public Shape getVisualHighlightShape (TextHitInfo firstEndpoint,
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                                        TextHitInfo secondEndpoint)
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  {
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    return getVisualHighlightShape(firstEndpoint, secondEndpoint, getBounds());
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  }
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  public Shape getVisualHighlightShape (TextHitInfo firstEndpoint,
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                                        TextHitInfo secondEndpoint,
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                                        Rectangle2D bounds)
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  {
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    return peer.getVisualHighlightShape(firstEndpoint, secondEndpoint, bounds);
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  }
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  public TextHitInfo getVisualOtherHit (TextHitInfo hit)
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  {
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    return peer.getVisualOtherHit(hit);
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  }
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  protected void handleJustify (float justificationWidth)
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  {
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    peer.handleJustify(justificationWidth);
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  }
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  public int hashCode ()
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  {
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    return peer.hashCode();
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  }
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  public TextHitInfo hitTestChar (float x, float y)
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  {
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    return hitTestChar(x, y, getBounds());
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  }
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  public TextHitInfo hitTestChar (float x, float y, Rectangle2D bounds)
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  {
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    return peer.hitTestChar(x, y, bounds);
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  }
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  public boolean isLeftToRight ()
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  {
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    return peer.isLeftToRight();
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  }
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  public boolean isVertical ()
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  {
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    return peer.isVertical();
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  }
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  public String toString ()
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  {
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    return peer.toString();
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  }
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}
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