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IELLIPSE.C
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C/C++ Source or Header
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1980-01-05
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107 lines
/*
* 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: iellipses.c,v 1.7 89/10/09 14:48:11 linton Exp $
// implements classes IFillEllipse and IFillCircle.
#include "iellipses.h"
#include "ipaint.h"
// IFillEllipse passes its arguments to FillEllipse.
IFillEllipse::IFillEllipse (Coord x0, Coord y0, int rx, int ry, Graphic* gs)
: (x0, y0, rx, ry, gs) {
}
// contains returns true if the IFillEllipse contains the given point
// unless the pattern is the "none" pattern.
boolean IFillEllipse::contains (PointObj& po, Graphic* gs) {
boolean contains = false;
IPattern* pattern = (IPattern*) gs->GetPattern();
if (!pattern->None()) {
contains = FillEllipse::contains(po, gs);
}
return contains;
}
// intersects returns true if the IFillEllipse intersects the given
// box unless the pattern is the "none" pattern.
boolean IFillEllipse::intersects (BoxObj& userb, Graphic* gs) {
boolean intersects = false;
IPattern* pattern = (IPattern*) gs->GetPattern();
if (!pattern->None()) {
intersects = FillEllipse::intersects(userb, gs);
}
return intersects;
}
// draw draws the IFillEllipse unless the pattern is the "none" pattern.
void IFillEllipse::draw (Canvas* c, Graphic* gs) {
IPattern* pattern = (IPattern*) gs->GetPattern();
if (!pattern->None()) {
FillEllipse::draw(c, gs);
}
}
// IFillCircle passes its arguments to FillCircle.
IFillCircle::IFillCircle (Coord x0, Coord y0, int r, Graphic* gs)
: (x0, y0, r, gs) {
}
// contains returns true if the IFillCircle contains the given point
// unless the pattern is the "none" pattern.
boolean IFillCircle::contains (PointObj& po, Graphic* gs) {
boolean contains = false;
IPattern* pattern = (IPattern*) gs->GetPattern();
if (!pattern->None()) {
contains = FillCircle::contains(po, gs);
}
return contains;
}
// intersects returns true if the IFillCircle intersects the given box
// unless the pattern is the "none" pattern.
boolean IFillCircle::intersects (BoxObj& userb, Graphic* gs) {
boolean intersects = false;
IPattern* pattern = (IPattern*) gs->GetPattern();
if (!pattern->None()) {
intersects = FillCircle::intersects(userb, gs);
}
return intersects;
}
// draw draws the IFillCircle unless the pattern is the "none"
// pattern.
void IFillCircle::draw (Canvas* c, Graphic* gs) {
IPattern* pattern = (IPattern*) gs->GetPattern();
if (!pattern->None()) {
FillCircle::draw(c, gs);
}
}