freebsd-skq/contrib/groff/pic/common.h
1996-09-07 16:18:32 +00:00

71 lines
3.2 KiB
C++

// -*- C++ -*-
/* Copyright (C) 1989, 1990, 1991, 1992 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 2, 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 COPYING. If not, write to the Free Software
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
class common_output : public output {
private:
void dash_line(const position &start, const position &end,
const line_type &lt, double dash_width, double gap_width,
double *offsetp);
void dash_arc(const position &cent, double rad,
double start_angle, double end_angle, const line_type &lt,
double dash_width, double gap_width, double *offsetp);
void dot_line(const position &start, const position &end,
const line_type &lt, double gap_width, double *offsetp);
void dot_arc(const position &cent, double rad,
double start_angle, double end_angle, const line_type &lt,
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 &cent, double rad, double start_angle,
double end_angle, const line_type &lt);
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 &cent,
const position &end, position *result);