ocaml/otherlibs/graph/fill.c

62 lines
1.6 KiB
C

#include "libgraph.h"
#include <memory.h>
value gr_fill_rect(vx, vy, vw, vh)
value vx, vy, vw, vh;
{
int x = Int_val(vx);
int y = Int_val(vy);
int w = Int_val(vw);
int h = Int_val(vh);
XFillRectangle(grdisplay, grwindow.win, grwindow.gc,
x, Wcvt(y) - h + 1, w, h);
XFillRectangle(grdisplay, grbstore.win, grbstore.gc,
x, Bcvt(y) - h + 1, w, h);
XFlush(grdisplay);
return Val_unit;
}
value gr_fill_poly(array)
value array;
{
XPoint * points;
int npoints, i;
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 = Wcvt(Int_val(Field(Field(array, i), 1)));
}
XFillPolygon(grdisplay, grwindow.win, grwindow.gc, points,
npoints, Complex, CoordModeOrigin);
for (i = 0; i < npoints; i++) {
points[i].y = WtoB(points[i].y);
}
XFillPolygon(grdisplay, grbstore.win, grbstore.gc, points,
npoints, Complex, CoordModeOrigin);
XFlush(grdisplay);
stat_free((char *) points);
return Val_unit;
}
value gr_fill_arc(argv, argc)
int argc;
value * argv;
{
int x = Int_val(argv[0]);
int y = Int_val(argv[1]);
int rx = Int_val(argv[2]);
int ry = Int_val(argv[3]);
int a1 = Int_val(argv[4]);
int a2 = Int_val(argv[5]);
XFillArc(grdisplay, grwindow.win, grwindow.gc,
x - rx, Wcvt(y) - ry, rx * 2, ry * 2, a1 * 64, (a2 - a1) * 64);
XFillArc(grdisplay, grbstore.win, grbstore.gc,
x - rx, Bcvt(y) - ry, rx * 2, ry * 2, a1 * 64, (a2 - a1) * 64);
XFlush(grdisplay);
return Val_unit;
}