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/*
* pen_line.cc -- ePiX::pen_line class, for line-like objects
*
* This file is part of ePiX, a C++ library for creating high-quality
* figures in LaTeX
*
* Version 1.1.20
* Last Change: September 19, 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
*/
#include "functions.h"
#include "pairs.h"
#include "affine.h"
#include "screen_mask.h"
#include "length.h"
#include "pen_data.h"
#include "paint_style.h"
#include "format.h"
#include "picture_data.h" // for add_to_palette()
#include "picture.h" // for the_picture()
#include "edge_data.h"
#include "tile.h"
#include "pen_line.h"
namespace ePiX {
typedef std::list<edge2d>::const_iterator ep2;
pen_line::pen_line()
: m_line(the_paint_style().line_pen()),
m_base(the_paint_style().base_pen()), m_style(the_path_style()) { }
pen_line::pen_line(const pen_data& line, const pen_data& base,
const std::list<edge2d>& data)
: m_line(line), m_base(base), m_style(the_path_style()), m_border(data) { }
pen_line* pen_line::clone() const
{
return new pen_line(*this);
}
pen_line& pen_line::map_by(const affine& f)
{
if (m_border.size() == 0)
return *this;
std::list<edge2d> bord;
for (ep2 p=m_border.begin(); p!=m_border.end(); ++p)
bord.push_back(edge2d(f(p->tail()), f(p->head()), (*p).is_seen()));
swap(m_border, bord);
return *this;
}
pen_line& pen_line::crop_to(const screen_mask& M)
{
m_border = M.crop_path(m_border);
return *this;
}
bool pen_line::is_empty() const
{
// N.B. line trumps base, even if base is otherwise visible
return (m_border.size() == 0 ||
m_line.color().is_unset() ||
m_line.width() == length(0));
}
std::string pen_line::print_to(const format& fmt,
const std::string& len) const
{
if (is_empty())
return "";
// else
return fmt.print_line(m_border, pair(0,0), m_line, m_base, m_style, len);
}
void pen_line::add_to_palette() const
{
// add_to_palette checks for unset
the_picture().add_to_palette(m_line.color())
.add_to_palette(m_base.color());
}
void pen_line::add(const edge2d& E)
{
m_border.push_back(E);
}
} // end of namespace
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