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/*
* label_data.cc -- ePiX::label_data class
*
* This file is part of ePiX, a C++ library for creating high-quality
* figures in LaTeX
*
* Version 1.1.21
* Last Change: September 22, 2007
*/
/*
* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
* Andrew D. Hwang <ahwang -at- holycross -dot- edu>
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <sstream>
#include "enums.h"
#include "triples.h"
#include "pairs.h"
#include "label_data.h"
#include "camera.h"
#include "screen_data.h"
#include "screen.h"
#include "clipping.h"
#include "paint_style.h"
#include "active_screen.h"
#include "glyph.h"
namespace ePiX {
label_data::label_data(const P& here, const P& offset,
const std::string& text, epix_mark_type mark)
: m_here(here), m_offset(offset.x1(), offset.x2()),
m_text(text), m_mark(mark), m_sizes(the_mark_size()),
m_style(the_label_style()), m_seen(!the_clip_box().clips(m_here))
{
// set axis tick color to line color; rotation ok if requested
if (m_mark == HTICK || m_mark == VTICK)
m_style.text_color(the_paint_style().line_color());
}
// generate label text from user-specified function of 2 or 3 variables
label_data::label_data(const P& here, const P& offset,
std::string f(double,double), epix_mark_type mark)
: m_here(here), m_offset(offset.x1(), offset.x2()),
m_text(f(here.x1(), here.x2())),
m_mark(mark), m_sizes(the_mark_size()), m_style(the_label_style()),
m_seen(!the_clip_box().clips(m_here))
{
if (m_mark == HTICK || m_mark == VTICK)
m_style.text_color(the_paint_style().line_color());
}
label_data::label_data(const P& here, const P& offset,
std::string f(double,double,double),
epix_mark_type mark)
: m_here(here), m_offset(offset.x1(), offset.x2()),
m_text(f(here.x1(), here.x2(), here.x3())),
m_mark(mark), m_sizes(the_mark_size()), m_style(the_label_style()),
m_seen(!the_clip_box().clips(m_here))
{
if (m_mark == HTICK || m_mark == VTICK)
m_style.text_color(the_paint_style().line_color());
}
// markers subject to masking, border
// Only this constructor aligns TICK marks, prevents their rotation
label_data::label_data(const P& here, epix_mark_type mark, epix_label_posn A)
: m_here(here), m_offset(0, 0),
m_text(""), m_mark(mark), m_sizes(the_mark_size()),
m_style(the_label_style()), m_seen(!the_clip_box().clips(m_here))
{
if (m_mark == HTICK || m_mark == VTICK)
{
m_style.text_color(the_paint_style().line_color());
m_style.label_angle(0); // no initial rotation
// prevent unseemly alignment; default is c, so needn't check
if (m_mark == HTICK && A == t || A == b)
m_style.align_to(A);
else if (A == l || A == r)
m_style.align_to(A);
}
}
label_data& label_data::text_color(const Color& col)
{
m_style.text_color(col);
return *this;
}
label_data& label_data::mask_color(const Color& col)
{
m_style.mask_color(col);
return *this;
}
label_data& label_data::align_to(epix_label_posn align)
{
m_style.align_to(align);
return *this;
}
// send colors through cam
void label_data::draw() const
{
if (m_seen)
(*active_screen()).m_screen->add_tile(glyph(cam()(m_here), m_offset,
m_text, m_mark, m_sizes,
m_style.seen_through(cam()),
true));
}
} // end of namespace
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