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/*
* screen_data.h -- ePiX::screen class implementation
*
* This file is part of ePiX, a C++ library for creating high-quality
* figures in LaTeX
*
* Version 1.1.18
* Last Change: September 16, 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
*/
/*
* This file implements the screen class, a Cartesian rectangle into
* which objects are drawn. This file is not part of epix.h.
*/
#ifndef EPIX_SCREEN_DATA
#define EPIX_SCREEN_DATA
#include <string>
#include <list>
#include "pairs.h"
namespace ePiX {
class affine;
class Color;
class format;
class length;
class pen_fill;
class pen_line;
class screen_mask;
class tile;
class screen_data {
public:
screen_data(const pair&, const pair&);
screen_data(const screen_data&);
screen_data& operator= (const screen_data&);
~screen_data();
screen_data* clone() const;
screen_data& crop_to(const screen_mask&);
screen_data& crop();
screen_data& set_mask(const screen_mask&);
screen_data& set_crop(bool);
// cut out and return a region
screen_data extract(const pair&, const pair&) const;
screen_data extract_diamond(const pair&, const pair&) const;
screen_data extract_ellipse(const pair&, const pair&) const;
// inset and import
screen_data& paste(const screen_data& child, const screen_mask& inset);
screen_data& paste(const screen_data& child);
screen_data& clear();
screen_data& border(const Color&, const std::string&);
screen_data& backing(const Color&);
screen_data& border();
screen_data& backing();
void add_tile(const tile&);
void add_tile(tile*);
// wrap=true -> encapsulate in a picture, for legends
std::string print_to(const format&, const length&, bool wrap=false) const;
// affine operations on contents (not border, backing)
void apply(const affine& af);
void shift(const pair& arg);
// rotate by theta about ctr
void rotate(double theta, const pair& ctr = pair(0,0));
// reflect in angle-theta line through ctr
void reflect(double theta, const pair& ctr = pair(0,0));
// scale coord direction(s) fixing ctr
void h_scale(double, const pair& ctr=pair(0,0));
void v_scale(double, const pair& ctr=pair(0,0));
void scale(double, const pair& ctr=pair(0,0));
// shear, fixing ctr, e.g. h_shear(sc) : (x,y) -> (x+sc*y, y)
void h_shear(double sc, const pair& ctr=pair(0,0));
void v_shear(double sc, const pair& ctr=pair(0,0));
pair tr() const;
pair tl() const;
pair bl() const;
pair br() const;
pair t() const;
pair b() const;
pair l() const;
pair r() const;
pair c() const;
double h_min() const;
double h_max() const;
double h_size() const;
double h_avg() const;
double v_min() const;
double v_max() const;
double v_size() const;
double v_avg() const;
private:
pair m_bl;
pair m_tr;
screen_mask* m_mask;
pen_line* m_border;
pen_fill* m_backing;
bool m_crop;
std::list<tile*> m_tiles;
}; // end of class screen_data
} // end of namespace
#endif /* EPIX_SCREEN_DATA */
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