Esempi in C++ (Cpp) per CAtlList::GetPrev

Esempio n. 1

File: Ellipse.cpp Progetto: Armada651/mpc-hc

void CEllipseCenterGroup::AddPoint(CAtlList<EllipseCenter>& centers, IntersectFunction intersect, int x, int y)
{
    POSITION pos = centers.GetTailPosition();
    while (pos) {
        POSITION posCur = pos;
        auto& center = centers.GetPrev(pos);

        int dyIntersect = intersect(x - center.x, y - center.y);
        if (dyIntersect != CEllipse::NO_INTERSECT_INNER) {
            int yIntersect = (dyIntersect == CEllipse::NO_INTERSECT_OUTER) ? (y - m_pEllipse->GetYRadius() - 1) : (center.y + dyIntersect);
            if (yIntersect < center.yStopDrawing) {
                center.yStopDrawing = yIntersect;
                if (pos && center.yStopDrawing <= centers.GetAt(pos).yStopDrawing) {
                    centers.RemoveAt(posCur);
                }
            } else {
                break;
            }
        }
    }

    auto& center = centers.GetAt(centers.AddTail());
    center.x = x;
    center.y = y;
    center.yStopDrawing = y + m_pEllipse->GetYRadius();
}