plotfile.cc

早期freebsd实现

// This may look like C code, but it is really -*- C++ -*-
/* 
Copyright (C) 1988, 1992 Free Software Foundation
    written by Doug Lea ([e-mail])

This file is part of the GNU C++ Library.  This library is free
software; you can redistribute it and/or modify it under the terms of
the GNU Library General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your
option) any later version.  This library 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#ifdef __GNUG__
#pragma implementation
#endif
#include <PlotFile.h>

/*
 PlotFile implementation module
*/


PlotFile:: PlotFile() {}
PlotFile::~PlotFile() {}


PlotFile::PlotFile(const char* filename,  io_mode m,  access_mode a) 
:(filename, m, a) {}

PlotFile::PlotFile(const char* filename)
:(filename, io_writeonly, a_create) {}

PlotFile::PlotFile(const char* filename,  const char* m)
:(filename, m) {}

PlotFile::PlotFile(int filedesc, const io_mode m)
:(filedesc, m) {}

PlotFile::PlotFile(FILE* fileptr)
:(fileptr) {}

PlotFile::operator void*()
{ 
  return (state & (_bad|_fail))? 0 : this ; 
}


PlotFile& PlotFile::open(const char* filename,
			  io_mode m,  access_mode a)
{
 File::open(filename, m, a); return *this; 
}

PlotFile& PlotFile::open(const char* filename, const char* m)
{
 File::open(filename, m); return *this; 
}

PlotFile& PlotFile::open(int  filedesc,  io_mode m)
{
 File::open(filedesc, m); return *this; 
}

PlotFile& PlotFile::open(FILE* fileptr)
{
 File::open(fileptr); return *this; 
}

PlotFile& PlotFile::setbuf(const int buffer_kind)
{
 File::setbuf(buffer_kind); return *this;
}

PlotFile& PlotFile::setbuf(const int size, char* buf)
{
  File::setbuf(size, buf); return *this;
}


PlotFile& PlotFile:: cmd(char c)
{ 
  File::put(c); 
  return *this; 
}

PlotFile& PlotFile:: operator<<(const int x)
{ 
#if defined(convex)
  File::put((char)(x>>8)); 
  File::put((char)(x&0377)); 
#else
  File::put((char)(x&0377)); 
  File::put((char)(x>>8)); 
#endif
  return *this; 
}

PlotFile& PlotFile:: operator<<(const char *s)
{ 
  File::put(s); 
  return *this;
}


PlotFile& PlotFile:: arc(const int xi, const int yi,
			 const int x0, const int y0,
			 const int x1, const int y1)
{ 
  return cmd('a') << xi << yi << x0 << y0 << x1 << y1; 
}


PlotFile& PlotFile:: box(const int x0, const int y0,
			 const int x1, const int y1)
{ 
  line(x0, y0, x0, y1);
  line(x0, y1, x1, y1);
  line(x1, y1, x1, y0);
  return line(x1, y0, x0, y0);
}

PlotFile& PlotFile:: circle(const int x, const int y, const int r)
{ 
  return cmd('c') << x << y << r; 
}

PlotFile& PlotFile:: cont(const int xi, const int yi)
{ 
  return cmd('n') << xi << yi;
}

PlotFile& PlotFile:: dot(const int xi, const int yi, const int dx,
			 int n, const int* pat)
{ 
  cmd('d') << xi << yi << dx << n;
  while (n-- > 0) *this << *pat++;
  return *this; 
}

PlotFile& PlotFile:: erase()
{ 
  return cmd('e'); 
}

PlotFile& PlotFile:: label(const char* s)
{ 
  return cmd('t') << s << "\n"; 
}

PlotFile& PlotFile:: line(const int x0, const int y0,
			  const int x1, const int y1)
{ 
  return cmd('l') << x0 << y0 << x1 << y1; 
}

PlotFile& PlotFile:: linemod(const char* s)
{ 
  return cmd('f') << s << "\n"; 
}

PlotFile& PlotFile:: move(const int xi, const int yi)
{ 
  return cmd('m') << xi << yi;
}

PlotFile& PlotFile:: point(const int xi, const int yi)
{ 
  return cmd('p') << xi << yi; 
}

PlotFile& PlotFile:: space(const int x0, const int y0,
			   const int x1, const int y1)
{ 
  return cmd('s') << x0 << y0 << x1 << y1; 
}