/**************************************************************************
/* This class is part of the Java Plotlib Toolkit.
/*
/* Copyright (c) 1999-2004 by Bernhard Bablok (bablokb@gmx.de)
/*
/* This program 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 of the License or
/* (at your option) any later version.
/*
/* This program 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 Library General Public License for more details.
/*
/* You should have received a copy of the GNU General Public License
/* along with this program; see the file COPYING.  If not, write to
/* the Free Software Foundation Inc., 59 Temple Place - Suite 330,
/* Boston, MA  02111-1307 USA
/**************************************************************************/
package de.bablokb.plotlib.core;

import java.awt.*;
import java.awt.geom.*;

/**
   Text label. Used for free floating text, axis labels and so on. The class
   is called <code>PLabel</code> to prevent a name clash with java.awt.Label.

   <p>Labels are positioned relative to a reference point. The direction 
   defines the way the text is plotted (e.g. left to right or top down),
   while the rotation defines if and how much each character is rotated.

   <p><strong>Most functionality not implemented yet!</strong>
  
   @version $Revision: 1.3 $
   @author  $Author: bablokb $
*/

public class PLabel extends AbstractPlottable {

  /////////////////////////////////////////////////////////////////////////////

  /**
     Text of label.
  */

  private String iText = null;

  /////////////////////////////////////////////////////////////////////////////

  /**
     Reference point.
  */

  private Point2D iPoint = null;

  /////////////////////////////////////////////////////////////////////////////


  /**
     Default constructor.
  */

  public PLabel() {
  }

  /////////////////////////////////////////////////////////////////////////////


  /**
     Construct a PLabel with the specified string and position.
  */

  public PLabel(String s, Point2D p) {
    iText  = s;
    iPoint = p;
  }

  /////////////////////////////////////////////////////////////////////////////

  /**
     Construct a PLabel with the specified string and position.
  */

  public PLabel(String s, double x, double y) {
    iText  = s;
    iPoint = Toolkit.getDefaultToolkit().getPoint2D();
    iPoint.setLocation(x,y);
  }

  /////////////////////////////////////////////////////////////////////////////

  /**
     Sets properties-object.
  */

  public void setProperties(PLabelProperties plp) {
    iProperties = plp;
  }

  /////////////////////////////////////////////////////////////////////////////

  /**
     Set text of label.
  */

  public void setText(String text) {
    iText = text;
  }

  /////////////////////////////////////////////////////////////////////////////

  /**
     Set point of label.
  */

  public void setReferencePoint(Point2D point) {
    iPoint = point;
  }

  /////////////////////////////////////////////////////////////////////////////

  /**
     Plot the text.
  */

  public void plotObjects(PlottingContext pc) {
    Graphics2D g2 = pc.getG2();
    if (iText != null && iPoint != null) {
      Point2D p = pc.transform(iPoint);
      g2.drawString(iText,(float) p.getX(),(float) p.getY());
    }
  }
}