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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /graphics/epix/screen_data.h
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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 <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
+ */
+
+/*
+ * 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 */