/**************************************************************************
/* 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.util.*;
import java.awt.*;
import java.awt.geom.*;

/**
   Plot a single line. This class is not really necessary, since you could
   also use the Lines-class, but it could make your program more readable.

   @version $Revision: 1.2 $
   @author  $Author: bablokb $
*/

public class Line extends AbstractPlottable {
  
  /////////////////////////////////////////////////////////////////////////////

  /**
     The implementing Line2D-object.
  */

  private Line2D iLine;

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

  /**
     Construct a Line from (0,0) to (0,0) with default color, width and type.
  */

  public Line() {
     iLine = Toolkit.getDefaultToolkit().getLine2D();
  }

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

  /**
     Construct a Line with specified Point2D coordinates and  with default
     color, width and type.
  */

  public Line(Point2D p1, Point2D p2) {
    this();
    iLine.setLine(p1,p2);
  }

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

  /**
     Construct a Line with specified double coordinates and  with default
     color, width and type.
  */

  public Line(double x1, double y1, double x2, double y2) {
    this();
    iLine.setLine(x1,y1,x2,y2);
  }

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

  /**
     Create and initialize a Line object with the given Line2D object.
  */

  public Line(Line2D line) {
    iLine = line;
  }

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

  /**
     Sets properties-object.
  */

  public void setProperties(LineProperties lp) {
    iProperties = lp;
  }

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

  /**
     Set the Line-object from given double coordinates.
  */

  public void setLine(double x1, double y1, double x2, double y2) {
    iLine.setLine(x1,y1,x2,y2);
  }

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

  /**
     Set the Line-object from given point coordinates.
  */

  public void setLine(Point2D p1, Point2D p2) {
    iLine.setLine(p1,p2);
  }

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

  /**
     Plot the line.
  */

  public void plotObjects(PlottingContext pc) {
    Graphics2D g2 = pc.getG2();
    if (iLine != null)
      g2.draw(pc.transform(iLine));
  }
}