From 78124689c5aa3f885f3905d9bfbc0bbae55c356e Mon Sep 17 00:00:00 2001
From: tamasmeszaros <meszaros.q@gmail.com>
Date: Mon, 30 May 2022 11:17:34 +0200
Subject: [PATCH] Fix excessive uptates to UI in sla rotation optimization

---
 src/libslic3r/SLA/Rotfinder.cpp | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/src/libslic3r/SLA/Rotfinder.cpp b/src/libslic3r/SLA/Rotfinder.cpp
index 847e638e6f..16cd28130a 100644
--- a/src/libslic3r/SLA/Rotfinder.cpp
+++ b/src/libslic3r/SLA/Rotfinder.cpp
@@ -288,7 +288,7 @@ template<unsigned MAX_ITER>
 struct RotfinderBoilerplate {
     static constexpr unsigned MAX_TRIES = MAX_ITER;
 
-    int status = 0;
+    int status = 0, prev_status = 0;
     TriangleMesh mesh;
     unsigned max_tries;
     const RotOptimizeParams &params;
@@ -314,13 +314,20 @@ struct RotfinderBoilerplate {
 
     RotfinderBoilerplate(const ModelObject &mo, const RotOptimizeParams &p)
         : mesh{get_mesh_to_rotate(mo)}
-        , params{p}
         , max_tries(p.accuracy() * MAX_TRIES)
-    {
+        , params{p}
+    {}
 
+    void statusfn() {
+        int s = status * 100 / max_tries;
+        if (s != prev_status) {
+            params.statuscb()(s);
+            prev_status = s;
+        }
+
+        ++status;
     }
 
-    void statusfn() { params.statuscb()(++status * 100.0 / max_tries); }
     bool stopcond() { return ! params.statuscb()(-1); }
 };