From 6ff12111a60f4cef51d03033dd3b3da224424703 Mon Sep 17 00:00:00 2001
From: Enrico Turri <enricoturri@seznam.cz>
Date: Fri, 12 Apr 2019 08:49:24 +0200
Subject: [PATCH] Copy and paste -> Disabled paste of instances when selection
 is in Volume mode

---
 src/slic3r/GUI/Plater.cpp    | 12 +++++++++++-
 src/slic3r/GUI/Selection.cpp |  3 ++-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index 027db69f5..c18091e4b 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -3717,7 +3717,17 @@ bool Plater::can_paste_from_clipboard() const
     const Selection& selection = p->view3D->get_canvas3d()->get_selection();
     const Selection::Clipboard& clipboard = selection.get_clipboard();
     Selection::EMode mode = clipboard.get_mode();
-    return !clipboard.is_empty() && ((mode == Selection::Instance) || selection.is_from_single_instance());
+
+    if (clipboard.is_empty())
+        return false;
+
+    if ((mode == Selection::Volume) && !selection.is_from_single_instance())
+        return false;
+
+    if ((mode == Selection::Instance) && (selection.get_mode() != Selection::Instance))
+        return false;
+
+    return true;
 }
 
 bool Plater::can_delete() const { return p->can_delete(); }
diff --git a/src/slic3r/GUI/Selection.cpp b/src/slic3r/GUI/Selection.cpp
index 315aa487a..22df9ed19 100644
--- a/src/slic3r/GUI/Selection.cpp
+++ b/src/slic3r/GUI/Selection.cpp
@@ -1078,7 +1078,8 @@ void Selection::paste_from_clipboard()
     }
     case Instance:
     {
-        paste_objects_from_clipboard();
+        if (m_mode == Instance)
+            paste_objects_from_clipboard();
 
         break;
     }