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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/path_style.h
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+/*
+ * path_style.h -- ePiX's class for solid/dashed/dotted paths
+ *
+ * This file is part of ePiX, a C++ library for creating high-quality
+ * figures in LaTeX
+ *
+ * Version 1.1.7
+ * Last Change: July 13, 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 ePiX's styles for dashed and dotted paths. The
+ * data are a string containing dashes (-), spaces ( ), and dots (.),
+ * each of which represents a fixed portion of a path segment, e.g.
+ *
+ * Solid: "-"
+ * Dashed: "- -"
+ * Dotted: " . "
+ * Custom: "- . -- . -", etc.
+ *
+ * The class in this file implements backend for user-level global
+ * functions defined in state.h.
+ *
+ * This header is not part of epix.h.
+ */
+#ifndef EPIX_PATH_STYLE
+#define EPIX_PATH_STYLE
+
+#include <string>
+#include <vector>
+
+namespace ePiX {
+
+ class path_state {
+ public:
+ path_state();
+ path_state(std::string);
+
+ path_state& separation(double len); // dist in pt between adjacent elements
+
+ double separation() const;
+ unsigned int natural_length() const;
+ std::vector<double> breakpts() const;
+
+ bool is_solid() const;
+
+ private:
+ double m_separation; // true length of pattern
+ std::vector<double> m_breakpoints; // subdivision of [0,1]
+
+ unsigned int m_natural_length; // number of chars in defining string
+ bool m_solid;
+ }; // end of class path_state
+
+ path_state& the_path_style();
+
+} // end of namespace
+
+#endif /* EPIX_PATH_STYLE */