void
XFillArc(
Display* display, /* Display. */
Drawable d, /* Draw on this. */
GC gc, /* Use this GC. */
int x, /* Upper left of */
int y, /* bounding rect. */
unsigned int width, /* Width & height. */
unsigned int height,
int angle1, /* Staring angle of arc. */
int angle2) /* Ending angle of arc. */
{
MacDrawable *macWin = (MacDrawable *) d;
Rect theRect;
short start, extent;
PolyHandle polygon;
double sin1, cos1, sin2, cos2, angle;
double boxWidth, boxHeight;
double vertex[2], center1[2], center2[2];
CGrafPtr saveWorld;
GDHandle saveDevice;
GWorldPtr destPort;
destPort = TkMacGetDrawablePort(d);
display->request++;
GetGWorld(&saveWorld, &saveDevice);
SetGWorld(destPort, NULL);
TkMacSetUpClippingRgn(d);
TkMacSetUpGraphicsPort(gc);
theRect.left = (short) (macWin->xOff + x);
theRect.top = (short) (macWin->yOff + y);
theRect.right = (short) (theRect.left + width);
theRect.bottom = (short) (theRect.top + height);
start = (short) (90 - (angle1 / 64));
extent = (short) (- (angle2 / 64));
if (gc->arc_mode == ArcChord) {
boxWidth = theRect.right - theRect.left;
boxHeight = theRect.bottom - theRect.top;
angle = -(angle1/64.0)*PI/180.0;
sin1 = sin(angle);
cos1 = cos(angle);
angle -= (angle2/64.0)*PI/180.0;
sin2 = sin(angle);
cos2 = cos(angle);
vertex[0] = (theRect.left + theRect.right)/2.0;
vertex[1] = (theRect.top + theRect.bottom)/2.0;
center1[0] = vertex[0] + cos1*boxWidth/2.0;
center1[1] = vertex[1] + sin1*boxHeight/2.0;
center2[0] = vertex[0] + cos2*boxWidth/2.0;
center2[1] = vertex[1] + sin2*boxHeight/2.0;
polygon = OpenPoly();
MoveTo((short) ((theRect.left + theRect.right)/2),
(short) ((theRect.top + theRect.bottom)/2));
LineTo((short) (center1[0] + 0.5), (short) (center1[1] + 0.5));
LineTo((short) (center2[0] + 0.5), (short) (center2[1] + 0.5));
ClosePoly();
ShowPen();
FillCArc(&theRect, start, extent, gPenPat);
FillCPoly(polygon, gPenPat);
KillPoly(polygon);
} else {
ShowPen();
FillCArc(&theRect, start, extent, gPenPat);
}
SetGWorld(saveWorld, saveDevice);
}
void _HYPlatformGraphicPane::_FillArc (_HYRect rectDesc, int s, int f)
{
Rect r= HYRect2Rect (rectDesc);
FillCArc (&r,s,f,fillColor);
}
