From 76c0f55ebe15a6889dc1621b1a9ea49a296cf14b Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Tue, 4 Aug 2015 11:32:52 +0200
Subject: [PATCH] + make mesh merge more performant

---
 src/Mod/Mesh/Gui/Command.cpp | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/Mod/Mesh/Gui/Command.cpp b/src/Mod/Mesh/Gui/Command.cpp
index 9e2f54dc4..45556ddad 100644
--- a/src/Mod/Mesh/Gui/Command.cpp
+++ b/src/Mod/Mesh/Gui/Command.cpp
@@ -1643,7 +1643,7 @@ CmdMeshMerge::CmdMeshMerge()
     sAppModule    = "Mesh";
     sGroup        = QT_TR_NOOP("Mesh");
     sMenuText     = QT_TR_NOOP("Merge");
-    sToolTipText  = "Merges selected meshes into one";
+    sToolTipText  = QT_TR_NOOP("Merges selected meshes into one");
     sWhatsThis    = "Mesh_Merge";
     sStatusTip    = sToolTipText;
 }
@@ -1653,16 +1653,17 @@ void CmdMeshMerge::activated(int iMsg)
     App::Document *pcDoc = App::GetApplication().getActiveDocument();
     if (!pcDoc)
         return;
+
     openCommand("Mesh merge");
-    Mesh::MeshObject* newMesh = new(Mesh::MeshObject);
+    Mesh::Feature *pcFeature = static_cast<Mesh::Feature*>(pcDoc->addObject("Mesh::Feature", "Mesh"));
+    Mesh::MeshObject* newMesh = pcFeature->Mesh.startEditing();
     std::vector<App::DocumentObject*> objs = Gui::Selection().getObjectsOfType(Mesh::Feature::getClassTypeId());
     for (std::vector<App::DocumentObject*>::const_iterator it = objs.begin(); it != objs.end(); ++it) {
         const MeshObject& mesh = static_cast<Mesh::Feature*>(*it)->Mesh.getValue();
-        MeshCore::MeshKernel kernel = mesh.getKernel();
-        newMesh->addMesh(kernel);
+        newMesh->addMesh(mesh);
     }
-    Mesh::Feature *pcFeature = (Mesh::Feature*)pcDoc->addObject("Mesh::Feature", "Mesh");
-    pcFeature->Mesh.setValue(*newMesh);
+
+    pcFeature->Mesh.finishEditing();
     updateActive();
     commitCommand();
 }