check if item is LPEItem before casting!!! fixes bug 236788

(bzr r5793)

1 files changed, 14 insertions, 6 deletions

diff --git a/src/shape-editor.cpp b/src/shape-editor.cpp
index 1d60671aa..49d8a2a14 100644
--- a/src/shape-editor.cpp
+++ b/src/shape-editor.cpp
@@ -190,15 +190,23 @@ void ShapeEditor::set_item(SPItem *item) {
     this->grab_node = -1;
 
     if (item) {
-        SPLPEItem *lpeitem = SP_LPE_ITEM(item);
-        if (!sp_lpe_item_get_current_lpe(lpeitem) ||   // if returns NULL, the whole expression evaluates to true and C++ will not call the otherwise crashing 2 functions below
-            !sp_lpe_item_get_current_lpe(lpeitem)->isVisible() ||
-            !sp_lpe_item_get_current_lpe(lpeitem)->providesKnotholder()) {
-            // only create nodepath if the item either doesn't have an LPE
-            // or the LPE is invisible or it doesn't provide a knotholder itself
+        if (SP_IS_LPE_ITEM(item)) {
+            SPLPEItem *lpeitem = SP_LPE_ITEM(item);
+            if ( !sp_lpe_item_get_current_lpe(lpeitem) ||   // if returns NULL, the whole expression evaluates to true and C++ will not call the otherwise crashing 2 functions below
+                 !sp_lpe_item_get_current_lpe(lpeitem)->isVisible() ||
+                 !sp_lpe_item_get_current_lpe(lpeitem)->providesKnotholder() )
+                // only create nodepath if the item either doesn't have an LPE
+                // or the LPE is invisible or it doesn't provide a knotholder itself
+            {
+                this->nodepath =
+                    sp_nodepath_new(desktop, item, (prefs_get_int_attribute("tools.nodes", "show_handles", 1) != 0));
+            }
+        } else {
+            // only create nodepath if the item either doesn't have an LPE: no fear the item cannot have an LPE
             this->nodepath =
                 sp_nodepath_new(desktop, item, (prefs_get_int_attribute("tools.nodes", "show_handles", 1) != 0));
         }
+
         if (this->nodepath) {
             this->nodepath->shape_editor = this;
         }