From 2c8bc7283ed0d8db16b62b2091e2bc9dbe123abe Mon Sep 17 00:00:00 2001
From: YuSanka <yusanka@gmail.com>
Date: Thu, 13 Dec 2018 13:05:47 +0100
Subject: [PATCH] Scroll the Object List to selected item been visible in the
 list (after object/part selection from the 3DScene)

---
 src/slic3r/GUI/GUI_ObjectList.cpp | 8 ++++++--
 src/slic3r/GUI/GUI_ObjectList.hpp | 2 ++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/slic3r/GUI/GUI_ObjectList.cpp b/src/slic3r/GUI/GUI_ObjectList.cpp
index 7ed6e5a28..b604e83f2 100644
--- a/src/slic3r/GUI/GUI_ObjectList.cpp
+++ b/src/slic3r/GUI/GUI_ObjectList.cpp
@@ -512,8 +512,6 @@ void ObjectList::OnDrop(wxDataViewEvent &event)
     parts_changed(m_selected_object_id);
 
     m_dragged_data.clear();
-
-//     m_prevent_list_events = false;
 }
 
 
@@ -1453,6 +1451,12 @@ void ObjectList::update_selections()
     }
     
     select_items(sels);
+
+    if (GetSelection()) {
+        const int sel_item_row = GetRowByItem(GetSelection());
+        ScrollLines(sel_item_row - m_selected_row);
+        m_selected_row = sel_item_row;
+    }
 }
 
 void ObjectList::update_selections_on_canvas()
diff --git a/src/slic3r/GUI/GUI_ObjectList.hpp b/src/slic3r/GUI/GUI_ObjectList.hpp
index 3664e6fda..7631782df 100644
--- a/src/slic3r/GUI/GUI_ObjectList.hpp
+++ b/src/slic3r/GUI/GUI_ObjectList.hpp
@@ -108,6 +108,8 @@ class ObjectList : public wxDataViewCtrl
     bool        m_parts_changed = false;
     bool        m_part_settings_changed = false;
 
+    int         m_selected_row = 0;
+
 public:
     ObjectList(wxWindow* parent);
     ~ObjectList();