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- // -*- C++ -*-
- /* Copyright (C) 1989, 1990 Free Software Foundation, Inc.
- Written by James Clark (jjc@jclark.uucp)
-
- This file is part of groff.
-
- groff 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 1, or (at your option) any later
- version.
-
- groff 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 groff; see the file LICENSE. If not, write to the Free Software
- Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- class common_output : public output {
- private:
- void dash_line(const position &start, const position &end,
- const line_type <, double dash_width, double gap_width,
- double *offsetp);
- void dash_arc(const position ¢, double rad,
- double start_angle, double end_angle, const line_type <,
- double dash_width, double gap_width, double *offsetp);
- void dot_line(const position &start, const position &end,
- const line_type <, double gap_width, double *offsetp);
- void dot_arc(const position ¢, double rad,
- double start_angle, double end_angle, const line_type <,
- double gap_width, double *offsetp);
- protected:
- virtual void dot(const position &, const line_type &) = 0;
- void dashed_circle(const position &, double rad, const line_type &);
- void dotted_circle(const position &, double rad, const line_type &);
- void dashed_arc(const position &, const position &, const position &,
- const line_type &);
- void dotted_arc(const position &, const position &, const position &,
- const line_type &);
- virtual void solid_arc(const position ¢, double rad, double start_angle,
- double end_angle, const line_type <);
- void dashed_rounded_box(const position &, const distance &, double,
- const line_type &);
- void dotted_rounded_box(const position &, const distance &, double,
- const line_type &);
- void solid_rounded_box(const position &, const distance &, double,
- const line_type &);
- void filled_rounded_box(const position &, const distance &, double, double);
- public:
- void start_picture(double sc, const position &ll, const position &ur) = 0;
- void finish_picture() = 0;
- void circle(const position &, double rad, const line_type &, double) = 0;
- void text(const position &, text_piece *, int, double) = 0;
- void line(const position &, const position *, int n, const line_type &) = 0;
- void polygon(const position *, int n, const line_type &, double) = 0;
- void spline(const position &, const position *, int n,
- const line_type &) = 0;
- void arc(const position &, const position &, const position &,
- const line_type &) = 0;
- void ellipse(const position &, const distance &,
- const line_type &, double) = 0;
- void rounded_box(const position &, const distance &, double,
- const line_type &, double);
- };
-
- int compute_arc_center(const position &start, const position ¢,
- const position &end, position *result);
-
-