From e6fec099052ccbb383d5092e81cb47a7626a6f5c Mon Sep 17 00:00:00 2001
From: Roman Telezhynskyi <kroluku@gmail.com>
Date: Tue, 29 Sep 2015 18:09:41 +0300
Subject: [PATCH] Fixed issue #379. Crash in Tape, Create/Edit when '(' in
 Formula field then click f(x).

--HG--
branch : develop
---
 src/app/tape/tmainwindow.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/app/tape/tmainwindow.cpp b/src/app/tape/tmainwindow.cpp
index 1c465c976..df6b6961c 100644
--- a/src/app/tape/tmainwindow.cpp
+++ b/src/app/tape/tmainwindow.cpp
@@ -786,7 +786,15 @@ void TMainWindow::Fx()
 
     QString text = ui->plainTextEditFormula->toPlainText();
     text.replace("\n", " ");
-    text = qApp->TrVars()->FormulaFromUser(text, true);
+    try
+    {
+        text = qApp->TrVars()->FormulaFromUser(text, true);
+    }
+    catch (qmu::QmuParserError &e) // Just in case something bad will happen
+    {
+        Q_UNUSED(e)
+        text = ui->plainTextEditFormula->toPlainText();
+    }
     dialog->SetFormula(text);
     const QString postfix = VDomDocument::UnitsToStr(mUnit, true);//Show unit in dialog lable (cm, mm or inch)
     dialog->setPostfix(postfix);
@@ -1229,7 +1237,7 @@ void TMainWindow::SaveMValue()
         const QString formula = qApp->TrVars()->FormulaFromUser(text, true);
         m->SetMValue(nameField->data(Qt::UserRole).toString(), formula);
     }
-    catch (qmu::QmuParserError &e) // Just in case something bad happens
+    catch (qmu::QmuParserError &e) // Just in case something bad will happen
     {
         Q_UNUSED(e)
         return;