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custpoly.c
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/**
** CUSTLINE.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.
**/
#include "grx.h"
#include "libgrx.h"
#include "thicklne.h"
void _GrDoCustomCorner(int x,int y,void *arg)
{
GrCustomLineData *dta = (GrCustomLineData *)arg;
if((dta->opt.lno_width >= 3) &&
!dta->is_XOR_color &&
(dta->total_pattlen == 0)) _GrScanEllipse(x,y,
dta->opt.lno_width >> 1,
dta->opt.lno_width >> 1,
TRUE,
FALSE,
dta->pixelproc,
dta->borderproc,
dta->scanfillproc,
dta->fillarg
);
}
void GrCustomPolyLine(int numpts,int points[][2],GrLineOption *o)
{
GrCustomLineData args;
_GrBuildCustomLineData(o,&args);
_GrSetupSolidDraw(&o->lno_color,&args);
_GrDrawPolygon(numpts,points,
FALSE,
TRUE,
_GrDoCustomCorner,
_GrDoCustomSegment,
&args
);
}
void GrCustomPolygon(int numpts,int points[][2],GrLineOption *o)
{
GrCustomLineData args;
_GrBuildCustomLineData(o,&args);
_GrSetupSolidDraw(&o->lno_color,&args);
_GrDrawPolygon(numpts,points,
TRUE,
TRUE,
_GrDoCustomCorner,
_GrDoCustomSegment,
&args
);
}
void GrCustomBox(int x1,int y1,int x2,int y2,GrLineOption *o)
{
GrCustomLineData args;
int points[4][2];
points[0][0] = x1; points[0][1] = y1;
points[1][0] = x1; points[1][1] = y2;
points[2][0] = x2; points[2][1] = y2;
points[3][0] = x2; points[3][1] = y1;
_GrBuildCustomLineData(o,&args);
_GrSetupSolidDraw(&o->lno_color,&args);
_GrDrawPolygon(4,points,
TRUE,
TRUE,
_GrDoCustomCorner,
_GrDoCustomSegment,
&args
);
}