oval.cpp

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#ifndef OVAL_IMPLEMENTATION_FILE
#define OVAL_IMPLEMENTATION_FILE

/*****************************************************************************\
*                                                                             *
*  Name   : oval                                                              *
*  Author : Chris Koeritz                                                     *
*                                                                             *
*******************************************************************************
* Copyright (c) 1991-$now By Author.  This program 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 of   *
* the License or (at your option) any later version.  This is online at:      *
*     http://www.fsf.org/copyleft/gpl.html                                    *
* Please send any updates to: fred@gruntose.com                               *
\*****************************************************************************/

#include "oval.h"
#include "wp_implementation.h"

using namespace geometric;

oval::oval(canvas &to_draw_on, const ellipse &init, const color &f, bool attach)
: ellipse(init),
  paintable(to_draw_on, init.center(), f, attach)
{}

c_rectangle oval::dimensions() const
{ 
  return c_rectangle
    (center() - c_point(width_from_center(), height_from_center()),
     center() + c_point(width_from_center(), height_from_center()));
}

void oval::plot(const color &plot_in)
{
#ifdef __XWINDOWS__
  color to_plot_in = plot_in;
  if (to_plot_in.index() < 0)
    target().colormap().add(to_plot_in);
  XSetForeground(target().display(), target().details()._gc,
      to_plot_in.index());
  c_rectangle bounder(target().world_to_device(dimensions()));
  c_point devo(bounder.vertex_1());
  c_point devsiz(bounder.width(), bounder.height());
  if (filled()) XFillArc
    (target().display(), target().window(), target().details()._gc,
     int(devo.x()), int(devo.y()), int(devsiz.x()), int(devsiz.y()),
     0, 64 * 360);
  else XDrawArc
    (target().display(), target().window(), target().details()._gc,
     int(devo.x()), int(devo.y()), int(devsiz.x()), int(devsiz.y()),
     0, 64 * 360);
#elif defined(MS_WINDOWS)
#elif defined(OS_2)
#endif
}

ellipse oval::base() const { return *this; }

void oval::base(const ellipse &to_set) { *(ellipse *)this = to_set; }

#endif //OVAL_IMPLEMENTATION_FILE

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