From 30f8f1e6cb3e5d89c5d6c973939d3b4185dbe5f8 Mon Sep 17 00:00:00 2001
From: "Daniel Pettersson (dpettersson)" <pettson81@gmail.com>
Date: Tue, 2 Oct 2018 21:10:50 +0200
Subject: [PATCH] Closes #158. Imported the patch from develop

---
 src/BtLineEdit.cpp | 45 ++++++++++++++++++++++++++-------------------
 1 file changed, 26 insertions(+), 19 deletions(-)

diff --git a/src/BtLineEdit.cpp b/src/BtLineEdit.cpp
index eeb092cc0..324e2b793 100644
--- a/src/BtLineEdit.cpp
+++ b/src/BtLineEdit.cpp
@@ -41,7 +41,7 @@ BtLineEdit::BtLineEdit(QWidget *parent, Unit::UnitType type) :
    _forceUnit = Unit::noUnit;
    _forceScale = Unit::noScale;
    */
-   
+
    connect(this,SIGNAL(editingFinished()),this,SLOT(lineChanged()));
 }
 
@@ -142,7 +142,7 @@ double BtLineEdit::toSI(Unit::unitDisplay oldUnit,Unit::unitScale oldScale,bool
 
       // get the qstringToSI() from the unit system, using the found unit.
       // Force the issue in qstringToSI() unless dspScale is Unit::noScale.
-      
+
       return temp->qstringToSI(text(), works, dspScale != Unit::noScale, dspScale);
    }
    else if ( _type == Unit::String )
@@ -179,7 +179,7 @@ double BtLineEdit::toDouble(bool* ok)
 {
    QRegExp amtUnit;
 
-   if ( ok ) 
+   if ( ok )
       *ok = true;
    // Make sure we get the right decimal point (. or ,) and the right grouping
    // separator (, or .). Some locales write 1.000,10 and other write
@@ -215,12 +215,19 @@ void BtLineEdit::setText( BeerXMLElement* element, int precision )
       display = element->property(_editField.toLatin1().constData()).toString();
    else if ( element->property(_editField.toLatin1().constData()).canConvert(QVariant::Double) )
    {
-      // Get the amount
       bool ok = false;
-      QString tmp = element->property(_editField.toLatin1().constData()).toString();
-      amount = Brewtarget::toDouble(tmp, &ok);
-      if ( !ok )
-         Brewtarget::logW( QString("%1 could not convert %2 (%3:%4) to double").arg(Q_FUNC_INFO).arg(tmp).arg(_section).arg(_editField) );
+      // Get the value from the element, and put it in a QVariant
+      QVariant tmp = element->property(_editField.toLatin1().constData());
+      // It is important here to use QVariant::toDouble() instead of going
+      // through toString() and then Brewtarget::toDouble().
+      amount = tmp.toDouble(&ok);
+      if ( !ok ) {
+         Brewtarget::logW( QString("%1 could not convert %2 (%3:%4) to double")
+                              .arg(Q_FUNC_INFO)
+                              .arg(tmp.toString())
+                              .arg(_section)
+                              .arg(_editField) );
+      }
 
       display = displayAmount(amount, precision);
    }
@@ -256,7 +263,7 @@ void BtLineEdit::setText( QVariant amount, int precision)
 int BtLineEdit::type() const { return (int)_type; }
 QString BtLineEdit::editField() const { return _editField; }
 QString BtLineEdit::configSection()
-{ 
+{
    if ( _section.isEmpty() ) {
       setConfigSection("");
    }
@@ -266,8 +273,8 @@ QString BtLineEdit::configSection()
 
 // Once we require >qt5.5, we can replace this noise with
 // QMetaEnum::fromType()
-QString BtLineEdit::forcedUnit() const 
-{ 
+QString BtLineEdit::forcedUnit() const
+{
    const QMetaObject &mo = Unit::staticMetaObject;
    int index = mo.indexOfEnumerator("unitDisplay");
    QMetaEnum unitEnum = mo.enumerator(index);
@@ -276,7 +283,7 @@ QString BtLineEdit::forcedUnit() const
 }
 
 QString BtLineEdit::forcedScale() const
-{ 
+{
    const QMetaObject &mo = Unit::staticMetaObject;
    int index = mo.indexOfEnumerator("unitScale");
    QMetaEnum scaleEnum = mo.enumerator(index);
@@ -288,20 +295,20 @@ void BtLineEdit::setType(int type) { _type = (Unit::UnitType)type;}
 void BtLineEdit::setEditField( QString editField) { _editField = editField; }
 
 // The cascade looks a little odd, but it is intentional.
-void BtLineEdit::setConfigSection( QString configSection) 
+void BtLineEdit::setConfigSection( QString configSection)
 {
-   _section = configSection; 
+   _section = configSection;
 
    if ( _section.isEmpty() )
       _section = btParent->property("configSection").toString();
 
-   if ( _section.isEmpty() ) 
+   if ( _section.isEmpty() )
       _section = btParent->objectName();
 }
 
 // previous comment about qt5.5 applies
-void BtLineEdit::setForcedUnit( QString forcedUnit ) 
-{ 
+void BtLineEdit::setForcedUnit( QString forcedUnit )
+{
    const QMetaObject &mo = Unit::staticMetaObject;
    int index = mo.indexOfEnumerator("unitDisplay");
    QMetaEnum unitEnum = mo.enumerator(index);
@@ -309,8 +316,8 @@ void BtLineEdit::setForcedUnit( QString forcedUnit )
    _forceUnit = (Unit::unitDisplay)unitEnum.keyToValue(forcedUnit.toStdString().c_str());
 }
 
-void BtLineEdit::setForcedScale( QString forcedScale ) 
-{ 
+void BtLineEdit::setForcedScale( QString forcedScale )
+{
    const QMetaObject &mo = Unit::staticMetaObject;
    int index = mo.indexOfEnumerator("unitScale");
    QMetaEnum unitEnum = mo.enumerator(index);