---

Line.cpp

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/*
    TEDDY - General graphics application library
    Copyright (C) 1999-2002  Timo Suoranta
    tksuoran@cc.helsinki.fi

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    $Id: Line.cpp,v 1.4 2002/01/11 14:35:02 tksuoran Exp $
*/


#include "Teddy/Models/Line.h"
#include "Teddy/Models/Vertex.h"


namespace Teddy  {
namespace Models {


Line::Line( Vertex *v1, Vertex * v2 ){
    start_point = v1;
    end_point   = v2;
}


Line::Line( const Line &l ){
    start_point = l.start_point;
    end_point   = l.end_point;
//  state       = 0;
}


void Line::draw( Projection *p ){
    start_point->draw( p );
    end_point  ->draw( p );
}


//void Line::debug(){
//  printf( "(" );
//  start_point->debug(); printf( ") - (" );
//  end_point->debug(); printf( ")" );
//}


void Line::swap(){
    Vertex *old_start = start_point;
    start_point = end_point;
    end_point   = old_start;
}


bool Line::operator==( const Line &l ) const {
    if( (start_point==l.start_point &&
         end_point  ==l.end_point      ) ||
        (start_point==l.end_point   &&
         end_point  ==l.start_point    )    )
    {
        return true;
    }else{
        return false;
    }
}


bool Line::operator!=( const Line &l ) const {
    if( (start_point==l.start_point &&
         end_point  ==l.end_point      ) ||
        (start_point==l.end_point   &&
         end_point  ==l.start_point    )    )
    {
        return false;
    }else{
        return true;
    }
}


};  //  namespace Models
};  //  namespace Teddy