Parallelism(self-made)

[Fm Jakaria]

Let $ABC$ a triangle with incircle touching $BC,CA,AB$ respectively at $X,Y,Z$. Suppose $D,E,F$ are respectively the feet of altitudes in $ABC$ from $A,B,C$. Similarly, define points $M,N,L$ to be feet of altitudes of triangle $XYZ$ from $X,Y,Z$. Finally, let pairs $DF,AC; DE,AB; MN,XY; ML,XZ$ intersect at $P,Q,O,R$. Determine all triangles with $PQ$ parallel to $OR$.