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IDRAW
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IPOLYGON.C
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C/C++ Source or Header
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1991-12-21
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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: ipolygons.c,v 1.7 89/10/09 14:48:22 linton Exp $
// implements classes IFillRect and IFillPolygon.
#include "ipaint.h"
#include "ipolygons.h"
// IFillRect passes its arguments to FillRect.
IFillRect::IFillRect (Coord x0, Coord y0, Coord x1, Coord y1, Graphic* gs)
: (x0, y0, x1, y1, gs) {
}
// contains returns true if the IFillRect contains the given point
// unless the pattern is the "none" pattern.
boolean IFillRect::contains (PointObj& po, Graphic* gs) {
boolean contains = false;
IPattern* pattern = (IPattern*) gs->GetPattern();
if (!pattern->None()) {
contains = GFillRect::contains(po, gs);
}
return contains;
}
// intersects returns true if the IFillRect intersects the given box
// unless the pattern is the "none" pattern.
boolean IFillRect::intersects (BoxObj& userb, Graphic* gs) {
boolean intersects = false;
IPattern* pattern = (IPattern*) gs->GetPattern();
if (!pattern->None()) {
intersects = GFillRect::intersects(userb, gs);
}
return intersects;
}
// draw draws the IFillRect unless the pattern is the "none" pattern.
void IFillRect::draw (Canvas* c, Graphic* gs) {
IPattern* pattern = (IPattern*) gs->GetPattern();
if (!pattern->None()) {
GFillRect::draw(c, gs);
}
}
// IFillPolygon passes its arguments to FillPolygon.
IFillPolygon::IFillPolygon (Coord* x, Coord* y, int n, Graphic* gs)
: (x, y, n, gs) {
}
// contains returns true if the IFillPolygon contains the given point
// unless the pattern is the "none" pattern.
boolean IFillPolygon::contains (PointObj& po, Graphic* gs) {
boolean contains = false;
IPattern* pattern = (IPattern*) gs->GetPattern();
if (!pattern->None()) {
contains = FillPolygon::contains(po, gs);
}
return contains;
}
// intersects returns true if the IFillPolygon intersects the given
// box unless the pattern is the "none" pattern.
boolean IFillPolygon::intersects (BoxObj& userb, Graphic* gs) {
boolean intersects = false;
IPattern* pattern = (IPattern*) gs->GetPattern();
if (!pattern->None()) {
intersects = FillPolygon::intersects(userb, gs);
}
return intersects;
}
// draw draws the IFillPolygon unless the pattern is the "none"
// pattern.
void IFillPolygon::draw (Canvas* c, Graphic* gs) {
IPattern* pattern = (IPattern*) gs->GetPattern();
if (!pattern->None()) {
FillPolygon::draw(c, gs);
}
}