Fixed issue #492. Valentina crashes when add an increment.

(grafted from 5d4057b6c1b14fbc6f8ff2be39c2066a14412d4e)

--HG--
branch : develop

ChangeLog.txt

@@ -30,6 +30,7 @@
 - [#473] Tape 'Preferences' cause loss of focus.
 - [#485] Error when drawing a curved path.
 - [#491] Valentina doesn't update fractional separator.
+- [#492] Valentina crashes when add an increment.
 
 # Version 0.4.4 April 12, 2016
 - Updated measurement templates with all measurements. Added new template Aldrich/Women measurements.

src/app/tape/tmainwindow.cpp

@@ -1012,6 +1012,9 @@ void TMainWindow::Fx()
 
     if (dialog->exec() == QDialog::Accepted)
     {
+        // Fix the bug #492. https://bitbucket.org/dismine/valentina/issues/492/valentina-crashes-when-add-an-increment
+        // Because of the bug need to take QTableWidgetItem twice time. Previous update "killed" the pointer.
+        const QTableWidgetItem *nameField = ui->tableWidget->item(row, ColumnName);
         m->SetMValue(nameField->data(Qt::UserRole).toString(), dialog->GetFormula());
 
         MeasurementsWasSaved(false);

src/app/valentina/dialogs/dialogincrements.cpp

@@ -681,6 +681,9 @@ void DialogIncrements::Fx()
 
     if (dialog->exec() == QDialog::Accepted)
     {
+        // Fix the bug #492. https://bitbucket.org/dismine/valentina/issues/492/valentina-crashes-when-add-an-increment
+        // Because of the bug need to take QTableWidgetItem twice time. Previous update "killed" the pointer.
+        const QTableWidgetItem *nameField = ui->tableWidgetIncrement->item(row, 0);
         doc->SetIncrementFormula(nameField->text(), dialog->GetFormula());
         FullUpdateTree(Document::LiteParse);
         ui->tableWidgetIncrement->selectRow(row);