Program is crashing if open dialog history and change current pattern piece.

--HG--
branch : develop

src/app/dialogs/app/dialoghistory.cpp

@@ -57,7 +57,6 @@ DialogHistory::DialogHistory(VContainer *data, VPattern *doc, QWidget *parent)
     connect(this, &DialogHistory::ShowHistoryTool, doc, &VPattern::ShowHistoryTool);
     connect(doc, &VPattern::ChangedCursor, this, &DialogHistory::ChangedCursor);
     connect(doc, &VPattern::patternChanged, this, &DialogHistory::UpdateHistory);
-    connect(doc, &VPattern::ChangedActivPP, this, &DialogHistory::UpdateHistory);
     ShowPoint();
 }
 
@@ -183,7 +182,7 @@ void DialogHistory::FillTable()
         }
     }
     ui->tableWidget->setRowCount(count);//Real row count
-    if (history->size()>0)
+    if (count>0)
     {
         cursorRow = currentRow;
         QTableWidgetItem *item = ui->tableWidget->item(cursorRow, 0);

src/app/mainwindow.cpp

@@ -1744,6 +1744,7 @@ void MainWindow::ActionHistory(bool checked)
     {
         dialogHistory = new DialogHistory(pattern, doc, this);
         dialogHistory->setWindowFlags(Qt::Window);
+        connect(this, &MainWindow::RefreshHistory, dialogHistory, &DialogHistory::UpdateHistory);
         connect(dialogHistory, &DialogHistory::DialogClosed, this, &MainWindow::ClosedActionHistory);
         dialogHistory->show();
     }
@@ -2392,6 +2393,7 @@ void MainWindow::ChangePP(int index, bool zoomBestFit)
     {
         doc->ChangeActivPP(comboBoxDraws->itemText(index));
         doc->setCurrentData();
+        emit RefreshHistory();
         if (drawMode)
         {
             ArrowTool();

src/app/mainwindow.h

@@ -133,6 +133,7 @@ signals:
      * @param description pattern description.
      */
     void               ModelChosen(QVector<VItem*> listDetails, const QString &curFile, const QString &description);
+    void               RefreshHistory();
 protected:
     virtual void       keyPressEvent(QKeyEvent *event);
     virtual void       showEvent(QShowEvent *event);