ocaml/otherlibs/graph/fill.c

88 lines
2.7 KiB
C

/***********************************************************************/
/* */
/* Objective Caml */
/* */
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* en Automatique. All rights reserved. This file is distributed */
/* under the terms of the GNU Library General Public License. */
/* */
/***********************************************************************/
/* $Id$ */
#include "libgraph.h"
#include <memory.h>
value gr_fill_rect(value vx, value vy, value vw, value vh)
{
int x = Int_val(vx);
int y = Int_val(vy);
int w = Int_val(vw);
int h = Int_val(vh);
gr_check_open();
if(grremember_mode)
XFillRectangle(grdisplay, grbstore.win, grbstore.gc,
x, Bcvt(y) - h + 1, w, h);
if(grdisplay_mode) {
XFillRectangle(grdisplay, grwindow.win, grwindow.gc,
x, Wcvt(y) - h + 1, w, h);
XFlush(grdisplay);
}
return Val_unit;
}
value gr_fill_poly(value array)
{
XPoint * points;
int npoints, i;
gr_check_open();
npoints = Wosize_val(array);
points = (XPoint *) stat_alloc(npoints * sizeof(XPoint));
for (i = 0; i < npoints; i++) {
points[i].x = Int_val(Field(Field(array, i), 0));
points[i].y = Bcvt(Int_val(Field(Field(array, i), 1)));
}
if(grremember_mode)
XFillPolygon(grdisplay, grbstore.win, grbstore.gc, points,
npoints, Complex, CoordModeOrigin);
if(grdisplay_mode) {
for (i = 0; i < npoints; i++)
points[i].y = BtoW(points[i].y);
XFillPolygon(grdisplay, grwindow.win, grwindow.gc, points,
npoints, Complex, CoordModeOrigin);
XFlush(grdisplay);
}
stat_free((char *) points);
return Val_unit;
}
value gr_fill_arc_nat(value vx, value vy, value vrx, value vry, value va1, value va2)
{
int x = Int_val(vx);
int y = Int_val(vy);
int rx = Int_val(vrx);
int ry = Int_val(vry);
int a1 = Int_val(va1);
int a2 = Int_val(va2);
gr_check_open();
if(grremember_mode)
XFillArc(grdisplay, grbstore.win, grbstore.gc,
x - rx, Bcvt(y) - ry, rx * 2, ry * 2, a1 * 64, (a2 - a1) * 64);
if(grdisplay_mode) {
XFillArc(grdisplay, grwindow.win, grwindow.gc,
x - rx, Wcvt(y) - ry, rx * 2, ry * 2, a1 * 64, (a2 - a1) * 64);
XFlush(grdisplay);
}
return Val_unit;
}
value gr_fill_arc(value *argv, int argc)
{
return gr_fill_arc_nat(argv[0], argv[1], argv[2], argv[3], argv[4], argv[5]);
}