internal int GetNearestWindow(Rectangle loc)
{
//precise center point
var centerX = loc.X + loc.W / 2;
var centerY = loc.Y + loc.H / 2;
var nextIndexBase = 0;
foreach (var winSz in WinSizes())
{
var indexBase = nextIndexBase;
nextIndexBase = checked(indexBase + GetNumWindows(winSz));
var offset = winSz >> _offsetExp;
var xIndex = Clamp(GetIndex(centerX, winSz, offset), 0, GetNumWindows(winSz, _w) - 1);
var yIndex = Clamp(GetIndex(centerY, winSz, offset), 0, GetNumWindows(winSz, _h) - 1);
if (CheckContains(xIndex * offset, winSz, loc.X, loc.X + loc.W) && CheckContains(yIndex * offset, winSz, loc.Y, loc.Y + loc.H))
{
return checked(indexBase + yIndex * GetNumWindows(winSz, _w) + xIndex);
}
}
return -1;
}
internal bool Overlaps(Rectangle r)
{
return ((X <= r.X && r.X < X + W) || (r.X <= X && X < r.X + r.W)) &&
((Y <= r.Y && r.Y < Y + H) || (r.Y <= Y && Y < r.Y + r.H));
}
