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/*
* arrow_atyle.cc -- ePiX's arrowhead parameters
*
* This file is part of ePiX, a C++ library for creating high-quality
* figures in LaTeX
*
* Version 1.1.15
* Last Change: September 08, 2007
*/
/*
* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
* Andrew D. Hwang <rot 13 nujnat at zngupf dot ubylpebff dot rqh>
* Department of Mathematics and Computer Science
* College of the Holy Cross
* Worcester, MA, 01610-2395, USA
*/
/*
* ePiX 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.
*
* ePiX 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 ePiX; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* The class in this file implements backend for user-level global
* functions defined in state.h. This header is not part of epix.h.
*/
#include <cmath>
#include "constants.h"
#include "functions.h" // for snip_to
#include "arrow_style.h"
namespace ePiX {
arrowhead_state::arrowhead_state()
: m_width(0.5*AVG_AWIDTH), m_ratio(AVG_ARATIO),
m_inset(AVG_INSET), m_fill(false) { }
// set
arrowhead_state& arrowhead_state::width(double w)
{
m_width = fabs(0.5*snip_to(w, MIN_AWIDTH, MAX_AWIDTH));
return *this;
}
arrowhead_state& arrowhead_state::ratio(double r)
{
m_ratio = fabs(snip_to(r, MIN_ARATIO, MAX_ARATIO));
return *this;
}
arrowhead_state& arrowhead_state::inset(double arg)
{
m_inset = snip_to(arg, MIN_INSET, MAX_INSET);
return *this;
}
arrowhead_state& arrowhead_state::fill(bool fill)
{
m_fill = fill;
return *this;
}
// get
double arrowhead_state::width() const
{
return m_width;
}
double arrowhead_state::ratio() const
{
return m_ratio;
}
double arrowhead_state::inset() const
{
return m_inset;
}
bool arrowhead_state::fill() const
{
return m_fill;
}
arrowhead_state& the_arrowhead_style()
{
static arrowhead_state* the_arrowhead_state(new arrowhead_state());
return *the_arrowhead_state;
}
} // end of namespace
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