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fakeclip.h
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1993-12-06
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/**
** FAKECLIP.H
**
** Copyright (C) 1992, Csaba Biegl
** 820 Stirrup Dr, Nashville, TN, 37221
** csaba@vuse.vanderbilt.edu
**
** This file is distributed under the terms listed in the document
** "copying.cb", available from the author at the address above.
** A copy of "copying.cb" should accompany this file; if not, a copy
** should be available from where this file was obtained. This file
** may not be distributed without a verbatim copy of "copying.cb".
** You should also have received a copy of the GNU General Public
** License along with this program (it is in the file "copying");
** if not, write to the Free Software Foundation, Inc., 675 Mass Ave,
** Cambridge, MA 02139, USA.
**
** This program 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 General Public License for more details.
**/
#ifndef _CLIPPING_H_
#define _CLIPPING_H_
#define INSIDE 0
#define CLIPPED 1
#define OUTSIDE 2
#ifndef WHEN_CLIPPED
#define WHEN_CLIPPED
#endif
#ifndef WHEN_OUTSIDE
#define WHEN_OUTSIDE
#endif
#define CLIPDOT(c,xx,yy)
#define CLIPDOTTOCONTEXT(c,xx,yy)
#define CLIPHLINE(c,x1,x2,yy) { \
if(x1 > x2) EXCHG(x1,x2); \
}
#define CLIPVLINE(c,xx,y1,y2) { \
if(y1 > y2) EXCHG(y1,y2); \
}
#define CLIPBOX(c,x1,y1,x2,y2) { \
if(x1 > x2) EXCHG(x1,x2); \
if(y1 > y2) EXCHG(y1,y2); \
}
#define CLIPSORTEDBOX(c,x1,y1,x2,y2)
#define CLIPBOXTOCONTEXT(c,x1,y1,x2,y2) { \
if(x1 > x2) EXCHG(x1,x2); \
if(y1 > y2) EXCHG(y1,y2); \
}
#define CLIPLINE(c,x1,y1,x2,y2) { \
if(x1 > x2) { EXCHG(x1,x2); EXCHG(y1,y2); } \
}
#undef MOUSE_FLAG
#undef MOUSE_BLOCK
#undef MOUSE_UNBLOCK
#define MOUSE_FLAG
#define MOUSE_BLOCK(cxt,x1,y1,x2,y2)
#define MOUSE_UNBLOCK()
#define GrPlot GrPlotNC
#define GrLine GrLineNC
#define GrHLine GrHLineNC
#define GrVLine GrVLineNC
#define GrBox GrBoxNC
#define GrFilledBox GrFilledBoxNC
#define GrFramedBox GrFramedBoxNC
#define GrPixel GrPixelNC
#endif /* whole file */