src/pre-pic/common.h

   1 /*@
   2  * Copyright (c) 2014 - 2017 Steffen (Daode) Nurpmeso <steffen@sdaoden.eu>.
   3  *
   4  * Copyright (C) 1989 - 1993, 2003, 2007
   5  *    Free Software Foundation, Inc.
   6  *      Written by James Clark (jjc@jclark.com)
   7  *
   8  * This is free software; you can redistribute it and/or modify it under
   9  * the terms of the GNU General Public License as published by the Free
  10  * Software Foundation; either version 2, or (at your option) any later
  11  * version.
  12  *
  13  * This is distributed in the hope that it will be useful, but WITHOUT ANY
  14  * WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16  * for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with groff; see the file COPYING.  If not, write to the Free Software
  20  * Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA.
  21  */
  22 #ifndef _COMMON_H
  23 #define _COMMON_H
  24
  25 #include "config.h"
  26 #include "pic-config.h"
  27
  28 class common_output
  29 : public output
  30 {
  31   void dash_line(const position &start, const position &end,
  32                  const line_type &lt, double dash_width, double gap_width,
  33                  double *offsetp);
  34   void dash_arc(const position &cent, double rad,
  35                 double start_angle, double end_angle, const line_type &lt,
  36                 double dash_width, double gap_width, double *offsetp);
  37   void dot_line(const position &start, const position &end,
  38                 const line_type &lt, double gap_width, double *offsetp);
  39   void dot_arc(const position &cent, double rad,
  40                double start_angle, double end_angle, const line_type &lt,
  41                double gap_width, double *offsetp);
  42
  43 protected:
  44   virtual void dot(const position &, const line_type &) = 0;
  45   void ellipse_arc(const position &, const position &,
  46                    const position &, const distance &,
  47                    const line_type &);
  48   void dashed_circle(const position &, double rad, const line_type &);
  49   void dotted_circle(const position &, double rad, const line_type &);
  50   void dashed_ellipse(const position &, const distance &, const line_type &);
  51   void dotted_ellipse(const position &, const distance &, const line_type &);
  52   void dashed_arc(const position &, const position &, const position &,
  53                   const line_type &);
  54   void dotted_arc(const position &, const position &, const position &,
  55                   const line_type &);
  56   virtual void solid_arc(const position &cent, double rad, double start_angle,
  57                          double end_angle, const line_type &lt);
  58   void dashed_rounded_box(const position &, const distance &, double,
  59                           const line_type &);
  60   void dotted_rounded_box(const position &, const distance &, double,
  61                           const line_type &);
  62   void solid_rounded_box(const position &, const distance &, double,
  63                          const line_type &);
  64   void filled_rounded_box(const position &, const distance &, double,
  65                           double);
  66
  67 public:
  68   void start_picture(double sc, const position &ll, const position &ur) = 0;
  69   void finish_picture() = 0;
  70   void circle(const position &, double rad, const line_type &, double) = 0;
  71   void text(const position &, text_piece *, int, double) = 0;
  72   void line(const position &, const position *, int n, const line_type &) = 0;
  73   void polygon(const position *, int n, const line_type &, double) = 0;
  74   void spline(const position &, const position *, int n,
  75               const line_type &) = 0;
  76   void arc(const position &, const position &, const position &,
  77            const line_type &) = 0;
  78   void ellipse(const position &, const distance &,
  79                const line_type &, double) = 0;
  80   void rounded_box(const position &, const distance &, double,
  81                    const line_type &, double, char *);
  82   void set_color(char *, char *) = 0;
  83   void reset_color() = 0;
  84   char *get_last_filled() = 0;
  85   char *get_outline_color() = 0;
  86 };
  87
  88 int compute_arc_center(const position &start, const position &cent,
  89                        const position &end, position *result);
  90
  91 #endif // _COMMON_H
  92 // s-it2-mode