void
polyfill(int n, vec2 points[])
{
int i;
int xoff, yoff;
MWPOINT pv[MAXPOLY];
if(!hdc)
return;
/* calc window offset*/
xoff = hdc->hwnd->clirect.left;
yoff = hdc->hwnd->clirect.top;
/* only plot non-trivial polygons*/
if(n > 2) {
for(i=0; i<n; ++i) {
pv[i].x = fx(points[i].x) + xoff;
pv[i].y = fy(points[i].y) + yoff;
/* fix: floating round error, y intercept difference
* with GdLine
*/
/*pv[i].x = fx(points[i].x + xoff);*/
/*pv[i].y = fy(points[i].y + yoff);*/
}
GdSetForegroundColor(hdc->psd, hdc->pen->color);
GdFillPoly(hdc->psd, n, pv);
}
}
BOOL WINAPI
Polygon(HDC hdc, CONST POINT *lpPoints, int nCount)
{
HWND hwnd;
int i;
LPPOINT pp, ppAlloc = NULL;
hwnd = MwPrepareDC(hdc);
if(!hwnd)
return FALSE;
if(MwIsClientDC(hdc)) {
/* convert points to client coords*/
ppAlloc = (LPPOINT)malloc(nCount * sizeof(POINT));
if(!ppAlloc)
return FALSE;
memcpy(ppAlloc, lpPoints, nCount*sizeof(POINT));
pp = ppAlloc;
for(i=0; i<nCount; ++i)
ClientToScreen(hwnd, pp++);
pp = ppAlloc;
} else pp = (LPPOINT)lpPoints;
/* fill polygon in current brush color*/
if(hdc->brush->style != BS_NULL) {
GdSetForegroundColor(hdc->psd, hdc->brush->color);
GdFillPoly(hdc->psd, nCount, pp);
}
/* draw polygon outline in current pen color*/
if(hdc->pen->style != PS_NULL) {
GdSetForegroundColor(hdc->psd, hdc->pen->color);
GdPoly(hdc->psd, nCount, pp);
}
if(ppAlloc)
free(ppAlloc);
return TRUE;
}
