diff --git a/src/libs/ifc/xml/vabstractpattern.cpp b/src/libs/ifc/xml/vabstractpattern.cpp
index ddb870dd4..46b85959e 100644
--- a/src/libs/ifc/xml/vabstractpattern.cpp
+++ b/src/libs/ifc/xml/vabstractpattern.cpp
@@ -1002,7 +1002,7 @@ QString VAbstractPattern::GetPatternName() const
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-void VAbstractPattern::SetPatternName(QString qsName)
+void VAbstractPattern::SetPatternName(const QString &qsName)
 {
     CheckTagExists(TagPatternName);
     setTagText(TagPatternName, qsName);
@@ -1017,7 +1017,7 @@ QString VAbstractPattern::GetCompanyName() const
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-void VAbstractPattern::SetCompanyName(QString qsName)
+void VAbstractPattern::SetCompanyName(const QString& qsName)
 {
     CheckTagExists(TagCompanyName);
     setTagText(TagCompanyName, qsName);
@@ -1032,7 +1032,7 @@ QString VAbstractPattern::GetPatternNumber() const
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-void VAbstractPattern::SetPatternNumber(QString qsNum)
+void VAbstractPattern::SetPatternNumber(const QString& qsNum)
 {
     CheckTagExists(TagPatternNum);
     setTagText(TagPatternNum, qsNum);
@@ -1047,7 +1047,7 @@ QString VAbstractPattern::GetCustomerName() const
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-void VAbstractPattern::SetCustomerName(QString qsName)
+void VAbstractPattern::SetCustomerName(const QString& qsName)
 {
     CheckTagExists(TagCustomerName);
     setTagText(TagCustomerName, qsName);
@@ -1062,7 +1062,7 @@ QString VAbstractPattern::GetPatternSize() const
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-void VAbstractPattern::SetPatternSize(QString qsSize)
+void VAbstractPattern::SetPatternSize(const QString& qsSize)
 {
     CheckTagExists(TagSize);
     setTagText(TagSize, qsSize);
diff --git a/src/libs/ifc/xml/vabstractpattern.h b/src/libs/ifc/xml/vabstractpattern.h
index f5f94ff5e..18c55c313 100644
--- a/src/libs/ifc/xml/vabstractpattern.h
+++ b/src/libs/ifc/xml/vabstractpattern.h
@@ -109,15 +109,15 @@ public:
     void           SetNotes(const QString &text);
 
     QString        GetPatternName() const;
-    void           SetPatternName(QString qsName);
+    void           SetPatternName(const QString& qsName);
     QString        GetCompanyName() const;
-    void           SetCompanyName(QString qsName);
+    void           SetCompanyName(const QString& qsName);
     QString        GetPatternNumber() const;
-    void           SetPatternNumber(QString qsNum);
+    void           SetPatternNumber(const QString &qsNum);
     QString        GetCustomerName() const;
-    void           SetCustomerName(QString qsName);
+    void           SetCustomerName(const QString& qsName);
     QString        GetPatternSize() const;
-    void           SetPatternSize(QString qsSize);
+    void           SetPatternSize(const QString &qsSize);
     bool           IsDateVisible() const;
     void           SetDateVisible(bool bVisible);
 
diff --git a/src/libs/vlayout/vlayoutdetail.cpp b/src/libs/vlayout/vlayoutdetail.cpp
index 86e0e6f9e..419a0089d 100644
--- a/src/libs/vlayout/vlayoutdetail.cpp
+++ b/src/libs/vlayout/vlayoutdetail.cpp
@@ -34,7 +34,6 @@
 #include <QFont>
 #include <QFontMetrics>
 #include <QBrush>
-#include <stdio.h>
 
 #if QT_VERSION < QT_VERSION_CHECK(5, 1, 0)
 #   include "../vmisc/vmath.h"
@@ -159,7 +158,7 @@ void VLayoutDetail::SetPatternInfo(const VAbstractPattern* pDoc, const VPatternI
             << QPointF(ptPos.x(), ptPos.y() + geom.GetLabelHeight());
     for (int i = 0; i < v.count(); ++i)
     {
-        v[i] = RotatePoint(ptCenter, v[i], dAng);
+        v[i] = RotatePoint(ptCenter, v.at(i), dAng);
     }
     d->patternInfo = RoundPoints(v);
 
@@ -543,7 +542,6 @@ void VLayoutDetail::CreateTextItems()
         qreal dW = GetDistance(points.at(0), points.at(1));
         qreal dY = 0;
         qreal dX;
-        printf("Pattern lines %d %d\n", m_tmPattern.GetCount(), m_tmPattern.GetSourceLineCount());
         for (int i = 0; i < m_tmPattern.GetCount(); ++i)
         {
             const TextLine& tl = m_tmPattern.GetLine(i);
diff --git a/src/libs/vlayout/vlayoutdetail.h b/src/libs/vlayout/vlayoutdetail.h
index 4cd101a7a..3672c8093 100644
--- a/src/libs/vlayout/vlayoutdetail.h
+++ b/src/libs/vlayout/vlayoutdetail.h
@@ -88,8 +88,8 @@ public:
     QPainterPath ContourPath() const;
     void ClearTextItems();
     void CreateTextItems();
-    int GetTextItemsCount() const;
-    QGraphicsItem* GetTextItem(int i) const;
+    int GetTextItemsCount() const Q_REQUIRED_RESULT;
+    QGraphicsItem* GetTextItem(int i) const Q_REQUIRED_RESULT;
     QPainterPath LayoutAllowencePath() const;
     QGraphicsItem *GetItem() const Q_REQUIRED_RESULT;
 
diff --git a/src/libs/vtools/undocommands/savedetailoptions.cpp b/src/libs/vtools/undocommands/savedetailoptions.cpp
index 85320bcd4..1aadf15f6 100644
--- a/src/libs/vtools/undocommands/savedetailoptions.cpp
+++ b/src/libs/vtools/undocommands/savedetailoptions.cpp
@@ -139,7 +139,7 @@ void SaveDetailOptions::SavePatternPieceData(QDomElement &domElement, const VDet
     QDomElement domData = doc->createElement(VAbstractPattern::TagData);
     const VPatternPieceData& data = det.GetPatternPieceData();
     doc->SetAttribute(domData, VAbstractPattern::AttrLetter, data.GetLetter());
-    doc->SetAttribute(domData, VAbstractPattern::AttrVisible, data.IsVisible() == true? 1:0);
+    doc->SetAttribute(domData, VAbstractPattern::AttrVisible, data.IsVisible() == true? trueStr : falseStr);
     doc->SetAttribute(domData, AttrMx, data.GetPos().x());
     doc->SetAttribute(domData, AttrMy, data.GetPos().y());
     doc->SetAttribute(domData, VToolDetail::AttrWidth, data.GetLabelWidth());
@@ -165,7 +165,7 @@ void SaveDetailOptions::SavePatternInfo(QDomElement &domElement, const VDetail &
 {
     QDomElement domData = doc->createElement(VAbstractPattern::TagPatternInfo);
     const VPatternInfoGeometry& data = det.GetPatternInfo();
-    doc->SetAttribute(domData, VAbstractPattern::AttrVisible, data.IsVisible() == true? 1:0);
+    doc->SetAttribute(domData, VAbstractPattern::AttrVisible, data.IsVisible() == true? trueStr : falseStr);
     doc->SetAttribute(domData, AttrMx, data.GetPos().x());
     doc->SetAttribute(domData, AttrMy, data.GetPos().y());
     doc->SetAttribute(domData, VToolDetail::AttrWidth, data.GetLabelWidth());