//-///////////////////////////////////////////////////////////////////////
//-///////////////////////////////////////////////////////////////////////
public override bool HandleMouseEvent(object sender, MouseEventArgs mea, V2 mouseScenePos)
{
_hot = false;
PointF screenPos, handlePos;
double thetaOffset;
if (GetPositions(out screenPos, out handlePos, out thetaOffset))
{
if (Misc.ArePointsCloser(mea.Location, handlePos, _handleRadius))
{
_hot = true;
}
}
if ((mea.Button & MouseButtons.Left) != 0)
{
if (_dragging)
{
float dx = (float)mea.Location.X - screenPos.X;
float dy = (float)mea.Location.Y - screenPos.Y;
Attr.SetValue(Math.Atan2(dy, dx) - thetaOffset);
}
else
{
if (_hot)
{
_dragging = true;
}
}
}
else
{
_dragging = false;
}
return(false);
}