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SLELLIPS.C
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1992-01-17
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/*
* Copyright (c) 1987, 1988, 1989 Stanford University
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Stanford not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. Stanford makes no representations about
* the suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* STANFORD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
* IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
// $Header: slellipses.c,v 1.7 89/10/09 14:49:27 linton Exp $
// implements classes EllipseSelection and CircleSelection.
#include "iellipses.h"
#include "slellipses.h"
#include <iostream.h>
// EllipseSelection creates the ellipse's filled interior and outline.
EllipseSelection::EllipseSelection (Coord x0, Coord y0, int rx, int ry,
Graphic* gs) : (gs) {
Append(new IFillEllipse(x0, y0, rx, ry));
Append(new GEllipse(x0, y0, rx, ry));
}
// EllipseSelection reads data to initialize its graphic state and
// create its filled interior and outline.
EllipseSelection::EllipseSelection (istream& from, State* state) : (nil) {
ReadGS(from, state);
Skip(from);
Coord x0, y0;
int rx, ry;
from >> x0 >> y0 >> rx >> ry;
Append(new IFillEllipse(x0, y0, rx, ry));
Append(new GEllipse(x0, y0, rx, ry));
}
// Copy returns a copy of the EllipseSelection.
Graphic* EllipseSelection::Copy () {
Coord x0, y0;
int rx, ry;
GetOriginal(x0, y0, rx, ry);
return new EllipseSelection(x0, y0, rx, ry, this);
}
// GetOriginal returns the center point and the x and y radii lengths
// that were passed to the EllipseSelection's constructor.
void EllipseSelection::GetOriginal (Coord& x0, Coord& y0, int& rx, int& ry) {
((GEllipse*) Last())->GetOriginal(x0, y0, rx, ry);
}
// WriteData writes the EllipseSelection's data and Postscript code to
// draw it.
void EllipseSelection::WriteData (ostream& to) {
Coord x0, y0;
int rx, ry;
GetOriginal(x0, y0, rx, ry);
to << "Begin " << startdata << " Elli\n";
WriteGS(to);
to << startdata << "\n";
to << x0 << " " << y0 << " " << rx << " " << ry << " Elli\n";
to << "End\n\n";
}
// CircleSelection creates the circle's filled interior and outline.
CircleSelection::CircleSelection (Coord x0, Coord y0, int r, Graphic* gs)
: (gs) {
Append(new IFillCircle(x0, y0, r));
Append(new Circle(x0, y0, r));
}
// CircleSelection reads data to initialize its graphic state and
// create its filled interior and outline.
CircleSelection::CircleSelection (istream& from, State* state) : (nil) {
ReadGS(from, state);
Skip(from);
Coord x0, y0;
int r;
from >> x0 >> y0 >> r;
Append(new IFillCircle(x0, y0, r));
Append(new Circle(x0, y0, r));
}
// Copy returns a copy of the CircleSelection.
Graphic* CircleSelection::Copy () {
Coord x0, y0;
int r;
GetOriginal(x0, y0, r);
return new CircleSelection(x0, y0, r, this);
}
// GetOriginal returns the center point and radius length that were
// passed to the CircleSelection's constructor.
void CircleSelection::GetOriginal (Coord& x0, Coord& y0, int& r) {
((Circle*) Last())->GetOriginal(x0, y0, r, r);
}
// WriteData writes the CircleSelection's data and Postscript code to
// draw it.
void CircleSelection::WriteData (ostream& to) {
Coord x0, y0;
int r;
GetOriginal(x0, y0, r);
to << "Begin " << startdata << " Circ\n";
WriteGS(to);
to << startdata << "\n";
to << x0 << " " << y0 << " " << r << " Circ\n";
to << "End\n\n";
}