private void OnTimerTick(object sender, EventArgs args)
{
if (_division == null)
{
return;
}
SubdivisionFace face = null;
// check if mouse cursor is over subdivision
Point cursor = Mouse.GetPosition(OutputBox);
if (cursor.X >= 0 && cursor.X < OutputBox.Width &&
cursor.Y >= 0 && cursor.Y < OutputBox.Height)
{
face = _division.FindFace(cursor.ToPointD());
}
// show current and previous face keys
if (face == null)
{
CurrentFace.Content = -1;
PreviousFace.Content = -1;
IntersectFace.Content = -1;
}
else
{
CurrentFace.Content = face.Key;
if (_faceKeys != null)
{
PreviousFace.Content = _faceKeys[face.Key].Item1;
IntersectFace.Content = _faceKeys[face.Key].Item2;
}
}
}