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// -*- C++ -*-
/* Copyright (C) 1989-2020 Free Software Foundation, Inc.
Written by James Clark (jjc@jclark.com)
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 3 of the License, 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 this program. If not, see <http://www.gnu.org/licenses/>. */
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 ellipse_arc(const position &, const position &,
const position &, const distance &,
const line_type &);
void dashed_circle(const position &, double rad, const line_type &);
void dotted_circle(const position &, double rad, const line_type &);
void dashed_ellipse(const position &, const distance &, const line_type &);
void dotted_ellipse(const position &, const distance &, 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, char *);
void set_color(char *, char *) = 0;
void reset_color() = 0;
char *get_last_filled() = 0;
char *get_outline_color() = 0;
};
int compute_arc_center(const position &start, const position ¢,
const position &end, position *result);
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