Unite cancel callback and status function

src/libslic3r/SLA/Rotfinder.hpp

@@ -19,19 +19,19 @@ namespace sla {
   * @param accuracy The optimization accuracy from 0.0f to 1.0f. Currently,
   * the nlopt genetic optimizer is used and the number of iterations is
   * accuracy * 100000. This can change in the future.
-  * @param statuscb A status indicator callback called with the unsigned
+  * @param statuscb A status indicator callback called with the int
   * argument spanning from 0 to 100. May not reach 100 if the optimization finds
-  * an optimum before max iterations are reached.
-  * @param stopcond A function that if returns true, the search process will be
-  * terminated and the best solution found will be returned.
+  * an optimum before max iterations are reached. It should return a boolean
+  * signaling if the operation may continue (true) or not (false). A status
+  * value lower than 0 shall not update the status but still return a valid
+  * continuation indicator.
   *
   * @return Returns the rotations around each axis (x, y, z)
   */
 Vec2d find_best_rotation(
         const SLAPrintObject& modelobj,
         float accuracy = 1.0f,
-        std::function<void(unsigned)> statuscb = [] (unsigned) {},
-        std::function<bool()> stopcond = [] () { return false; }
+        std::function<bool(int)> statuscb = [] (int) { return true; }
         );
 
 double get_model_supportedness(const SLAPrintObject &mesh,