Function edgesAtPoint

pj_app/src/MainWindow.cpp:221–234

constexpr int kLayoutSpacingDefault = 2;

Qt::Edges edgesAtPoint(const QSize& window_size, const QPoint& pos) {
  Qt::Edges edges;
  if (pos.x() <= kResizeMargin) {
    edges |= Qt::LeftEdge;
  } else if (pos.x() >= window_size.width() - kResizeMargin) {
    edges |= Qt::RightEdge;
  }
  if (pos.y() <= kResizeMargin) {
    edges |= Qt::TopEdge;
  } else if (pos.y() >= window_size.height() - kResizeMargin) {
    edges |= Qt::BottomEdge;
  }
  return edges;
}

Qt::CursorShape cursorForEdges(Qt::Edges edges) {
  switch (static_cast<int>(edges)) {