From 6da406fe18ed59b1ebf0c6c0217a46279b79645c Mon Sep 17 00:00:00 2001
From: blacksun
 <blacksun@r5936  blacksun  2019-06-24 19:44:37 +0200 (lun. 24 juin 2019)>
Date: Thu, 29 Oct 2015 15:14:42 +0000
Subject: [PATCH] Bug fix.

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@4243 bfdf4180-ca20-0410-9c96-a3a8aa849046
---
 sources/ui/linksingleelementwidget.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sources/ui/linksingleelementwidget.cpp b/sources/ui/linksingleelementwidget.cpp
index db9994396..0f317ab95 100644
--- a/sources/ui/linksingleelementwidget.cpp
+++ b/sources/ui/linksingleelementwidget.cpp
@@ -33,7 +33,7 @@
 LinkSingleElementWidget::LinkSingleElementWidget(Element *elmt, QWidget *parent) :
 	AbstractElementPropertiesEditorWidget(parent),
 	ui(new Ui::LinkSingleElementWidget),
-	esw_(0),
+	esw_(nullptr),
 	unlink_(false),
 	search_field(nullptr)
 {
@@ -269,6 +269,8 @@ QList <Element *> LinkSingleElementWidget::availableElements()
 		//find in all diagram of this project
 	if (i == 0)
 	{
+		if (!m_element->diagram() || !m_element->diagram()->project()) return elmt_list;
+
 		ElementProvider ep(m_element->diagram()->project());
 		if (filter_ & Element::AllReport)
 			elmt_list = ep.freeElement(filter_);
@@ -284,6 +286,8 @@ QList <Element *> LinkSingleElementWidget::availableElements()
 		else
 			elmt_list = ep.find(filter_);
 	}
+
+
 		//If element is linked, remove is parent from the list
 	if(!m_element->isFree()) elmt_list.removeAll(m_element->linkedElements().first());