From 4287796f61e1b741d4205d5970d56997742032a6 Mon Sep 17 00:00:00 2001
From: Nicholas Bishop <nicholasbishop@gmail.com>
Date: Sun, 3 Jun 2007 20:24:09 +0000
Subject: [PATCH] == Multires ==

Fixed bug [#6798] Multires eventually destroys Meshes with Shapekys

* Moved the check for multires on adding shapekeys into insert_shapekeys rather than on the "Add Shape" button click
---
 source/blender/src/buttons_editing.c |  6 +-----
 source/blender/src/editkey.c         | 30 +++++++++++++++++-----------
 2 files changed, 19 insertions(+), 17 deletions(-)

diff --git a/source/blender/src/buttons_editing.c b/source/blender/src/buttons_editing.c
index ec2b7b3b274..e593f9c5409 100644
--- a/source/blender/src/buttons_editing.c
+++ b/source/blender/src/buttons_editing.c
@@ -602,11 +602,7 @@ void do_common_editbuts(unsigned short event) // old name, is a mix of object an
 		break;
 	
 	case B_ADDKEY:
-		if(get_mesh(ob) && get_mesh(ob)->mr) {
-			error("Cannot create shape keys on a multires mesh.");
-		} else {
-			insert_shapekey(ob);
-		}
+		insert_shapekey(ob);
 		break;
 	case B_SETKEY:
 		ob->shapeflag |= OB_SHAPE_TEMPLOCK;
diff --git a/source/blender/src/editkey.c b/source/blender/src/editkey.c
index 85dac9ee3c5..975f792d2b9 100644
--- a/source/blender/src/editkey.c
+++ b/source/blender/src/editkey.c
@@ -67,6 +67,7 @@
 #include "BKE_key.h"
 #include "BKE_library.h"
 #include "BKE_main.h"
+#include "BKE_mesh.h"
 #include "BKE_object.h"
 #include "BKE_utildefines.h"
 
@@ -599,21 +600,26 @@ void insert_curvekey(Curve *cu, short rel)
 
 void insert_shapekey(Object *ob)
 {
-	Key *key;
+	if(get_mesh(ob) && get_mesh(ob)->mr) {
+		error("Cannot create shape keys on a multires mesh.");
+	}
+	else {
+		Key *key;
 	
-	if(ob->type==OB_MESH) insert_meshkey(ob->data, 1);
-	else if ELEM(ob->type, OB_CURVE, OB_SURF) insert_curvekey(ob->data, 1);
-	else if(ob->type==OB_LATTICE) insert_lattkey(ob->data, 1);
+		if(ob->type==OB_MESH) insert_meshkey(ob->data, 1);
+		else if ELEM(ob->type, OB_CURVE, OB_SURF) insert_curvekey(ob->data, 1);
+		else if(ob->type==OB_LATTICE) insert_lattkey(ob->data, 1);
 	
-	key= ob_get_key(ob);
-	ob->shapenr= BLI_countlist(&key->block);
+		key= ob_get_key(ob);
+		ob->shapenr= BLI_countlist(&key->block);
 	
-	allspace(REMAKEIPO, 0);
-	allqueue(REDRAWIPO, 0);
-	allqueue(REDRAWACTION, 0);
-	allqueue(REDRAWNLA, 0);
-	allqueue(REDRAWBUTSOBJECT, 0);
-	allqueue(REDRAWBUTSEDIT, 0);
+		allspace(REMAKEIPO, 0);
+		allqueue(REDRAWIPO, 0);
+		allqueue(REDRAWACTION, 0);
+		allqueue(REDRAWNLA, 0);
+		allqueue(REDRAWBUTSOBJECT, 0);
+		allqueue(REDRAWBUTSEDIT, 0);
+	}
 }
 
 void delete_key(Object *ob)