void plotBoxesToPainter(QPainter& painter,
const Numpy1DObj& x1, const Numpy1DObj& y1,
const Numpy1DObj& x2, const Numpy1DObj& y2,
const QRectF* clip, bool autoexpand)
{
// if autoexpand, expand rectangle by line width
QRectF clipcopy(QPointF(-32767,-32767), QPointF(32767,32767));
if ( clip != 0 && autoexpand )
{
const qreal lw = painter.pen().widthF();
qreal x1, y1, x2, y2;
clip->getCoords(&x1, &y1, &x2, &y2);
clipcopy.setCoords(x1, y1, x2, y2);
clipcopy.adjust(-lw, -lw, lw, lw);
}
const int maxsize = min(x1.dim, x2.dim, y1.dim, y2.dim);
QVector<QRectF> rects;
for(int i = 0; i < maxsize; ++i)
{
QPointF pt1(x1(i), y1(i));
QPointF pt2(x2(i), y2(i));
const QRectF rect(pt1, pt2);
if( clipcopy.intersects(rect) )
{
rects << clipcopy.intersected(rect);
}
}
if( ! rects.isEmpty() )
painter.drawRects(rects);
}
void
xclipcopy(void)
{
clipcopy(NULL);
}
