diff --git a/src/geometry/vdetail.cpp b/src/geometry/vdetail.cpp
index ab7379dd4..d92786a5c 100644
--- a/src/geometry/vdetail.cpp
+++ b/src/geometry/vdetail.cpp
@@ -174,13 +174,13 @@ ptrdiff_t VDetail::Edge(const quint32 &p1, const quint32 &p2) const
 void VDetail::NodeOnEdge(const quint32 &index, VNodeDetail &p1, VNodeDetail &p2) const
 {
     QVector<VNodeDetail> list = listNodePoint();
-    if (index < 0 || index > list.size())
+    if (index > static_cast<quint32>(list.size()))
     {
         qWarning()<<"Wrong edge index index ="<<index;
         return;
     }
     p1 = list.at(index);
-    if (index + 1 > list.size() - 1)
+    if (index + 1 > static_cast<quint32>(list.size()) - 1)
     {
         p2 = list.at(0);
     }
@@ -196,9 +196,9 @@ VDetail VDetail::RemoveEdge(const quint32 &index) const
     det.ClearNodes();
 
     QVector<VNodeDetail> list = this->listNodePoint();
-    qint32 edge = list.size();
-    ptrdiff_t k = 0;
-    for (ptrdiff_t i=0; i<edge; ++i)
+    quint32 edge = static_cast<quint32>(list.size());
+    quint32 k = 0;
+    for (quint32 i=0; i<edge; ++i)
     {
         if (i == index)
         {
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 8eb4b7cf8..ccbf524ff 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -44,36 +44,8 @@
 #include <QShowEvent>
 #include <QScrollBar>
 #include <QFileDialog>
-#include <QXmlSchema>
-#include <QXmlSchemaValidator>
 #include <QSourceLocation>
-#include <QAbstractMessageHandler>
 
-//This class need for validation pattern file using XSD shema
-class MessageHandler : public QAbstractMessageHandler
-{
-public:
-    MessageHandler() : QAbstractMessageHandler(0), m_messageType(QtMsgType()), m_description(QString()),
-        m_sourceLocation(QSourceLocation()){}
-    inline QString statusMessage() const {return m_description;}
-    inline qint64     line() const {return m_sourceLocation.line();}
-    inline qint64     column() const {return m_sourceLocation.column();}
-protected:
-    virtual void handleMessage(QtMsgType type, const QString &description,
-                               const QUrl &identifier, const QSourceLocation &sourceLocation)
-    {
-        Q_UNUSED(type);
-        Q_UNUSED(identifier);
-
-        m_messageType = type;
-        m_description = description;
-        m_sourceLocation = sourceLocation;
-    }
-private:
-    QtMsgType       m_messageType;
-    QString         m_description;
-    QSourceLocation m_sourceLocation;
-};
 
 MainWindow::MainWindow(QWidget *parent)
     :QMainWindow(parent), ui(new Ui::MainWindow), pattern(0), doc(0), tool(Tool::ArrowTool), currentScene(0),
@@ -1146,56 +1118,6 @@ void MainWindow::MinimumScrollBar()
     verScrollBar->setValue(verScrollBar->minimum());
 }
 
-bool MainWindow::ValidatePattern(const QString &schema, const QString &fileName, QString &errorMsg, qint64 &errorLine,
-                                 qint64 &errorColumn) const
-{
-    errorLine = -1;
-    errorColumn = -1;
-    QFile pattern(fileName);
-    if (pattern.open(QIODevice::ReadOnly) == false)
-    {
-        errorMsg = QString(tr("Can't open pattern file %1:\n%2.").arg(fileName).arg(pattern.errorString()));
-        return false;
-    }
-    QFile fileSchema(schema);
-    if (fileSchema.open(QIODevice::ReadOnly) == false)
-    {
-        errorMsg = QString(tr("Can't open schema file %1:\n%2.").arg(schema).arg(fileSchema.errorString()));
-        return false;
-    }
-
-    MessageHandler messageHandler;
-    QXmlSchema sch;
-    sch.setMessageHandler(&messageHandler);
-    sch.load(&fileSchema, QUrl::fromLocalFile(fileSchema.fileName()));
-
-    bool errorOccurred = false;
-    if (sch.isValid() == false)
-    {
-        errorOccurred = true;
-    }
-    else
-    {
-        QXmlSchemaValidator validator(sch);
-        if (validator.validate(&pattern, QUrl::fromLocalFile(pattern.fileName())) == false)
-        {
-            errorOccurred = true;
-        }
-    }
-
-    if (errorOccurred)
-    {
-        errorMsg = messageHandler.statusMessage();
-        errorLine = messageHandler.line();
-        errorColumn = messageHandler.column();
-        return false;
-    }
-    else
-    {
-        return true;
-    }
-}
-
 bool MainWindow::SavePattern(const QString &fileName)
 {
     try
@@ -1455,7 +1377,7 @@ void MainWindow::LoadPattern(const QString &fileName)
     qint64 errorColumn = 0;
     if (file.open(QIODevice::ReadOnly))
     {
-        if (ValidatePattern("://schema/pattern.xsd", fileName, errorMsg, errorLine, errorColumn))
+        if (VDomDocument::ValidatePattern("://schema/pattern.xsd", fileName, errorMsg, errorLine, errorColumn))
         {
             qint32 errorLine = 0;
             qint32 errorColumn = 0;
diff --git a/src/mainwindow.h b/src/mainwindow.h
index 04c6625b4..0421cf7df 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -516,17 +516,6 @@ private:
      * @brief MinimumScrollBar set scroll bar to minimum.
      */
     void               MinimumScrollBar();
-    /**
-     * @brief ValidatePattern validate pattern file by xsd schema.
-     * @param schema path to schema file.
-     * @param fileName name of pattern file.
-     * @param errorMsg error message.
-     * @param errorLine number error line.
-     * @param errorColumn number error column.
-     * @return true if validation successful.
-     */
-    bool ValidatePattern(const QString &schema, const QString &curFile, QString &errorMsg, qint64 &errorLine,
-                         qint64 &errorColumn) const;
     template <typename DrawTool>
     /**
      * @brief ClosedDialog handle close dialog
diff --git a/src/tools/drawTools/vtoolalongline.cpp b/src/tools/drawTools/vtoolalongline.cpp
index c7c2da657..bf6abdba3 100644
--- a/src/tools/drawTools/vtoolalongline.cpp
+++ b/src/tools/drawTools/vtoolalongline.cpp
@@ -56,8 +56,8 @@ void VToolAlongLine::FullUpdateFromFile()
     {
         typeLine = domElement.attribute(AttrTypeLine, "");
         formula = domElement.attribute(AttrLength, "");
-        basePointId = domElement.attribute(AttrFirstPoint, "").toLongLong();
-        secondPointId = domElement.attribute(AttrSecondPoint, "").toLongLong();
+        basePointId = domElement.attribute(AttrFirstPoint, "").toUInt();
+        secondPointId = domElement.attribute(AttrSecondPoint, "").toUInt();
     }
     RefreshGeometry();
 }
diff --git a/src/tools/drawTools/vtoolbisector.cpp b/src/tools/drawTools/vtoolbisector.cpp
index 087ef7b2a..7208a4610 100644
--- a/src/tools/drawTools/vtoolbisector.cpp
+++ b/src/tools/drawTools/vtoolbisector.cpp
@@ -155,9 +155,9 @@ void VToolBisector::FullUpdateFromFile()
     {
         typeLine = domElement.attribute(AttrTypeLine, "");
         formula = domElement.attribute(AttrLength, "");
-        firstPointId = domElement.attribute(AttrFirstPoint, "").toLongLong();
-        basePointId = domElement.attribute(AttrSecondPoint, "").toLongLong();
-        thirdPointId = domElement.attribute(AttrThirdPoint, "").toLongLong();
+        firstPointId = domElement.attribute(AttrFirstPoint, "").toUInt();
+        basePointId = domElement.attribute(AttrSecondPoint, "").toUInt();
+        thirdPointId = domElement.attribute(AttrThirdPoint, "").toUInt();
     }
     RefreshGeometry();
 }
diff --git a/src/tools/drawTools/vtoolcutarc.cpp b/src/tools/drawTools/vtoolcutarc.cpp
index c181191b3..e34f08fef 100644
--- a/src/tools/drawTools/vtoolcutarc.cpp
+++ b/src/tools/drawTools/vtoolcutarc.cpp
@@ -165,7 +165,7 @@ void VToolCutArc::FullUpdateFromFile()
     if (domElement.isElement())
     {
         formula = domElement.attribute(AttrLength, "");
-        arcId = domElement.attribute(AttrArc, "").toLongLong();
+        arcId = domElement.attribute(AttrArc, "").toUInt();
     }
     RefreshGeometry();
 }
diff --git a/src/tools/drawTools/vtoolcutspline.cpp b/src/tools/drawTools/vtoolcutspline.cpp
index 0debf801d..162080406 100644
--- a/src/tools/drawTools/vtoolcutspline.cpp
+++ b/src/tools/drawTools/vtoolcutspline.cpp
@@ -166,7 +166,7 @@ void VToolCutSpline::FullUpdateFromFile()
     if (domElement.isElement())
     {
         formula = domElement.attribute(AttrLength, "");
-        splineId = domElement.attribute(AttrSpline, "").toLongLong();
+        splineId = domElement.attribute(AttrSpline, "").toUInt();
     }
     RefreshGeometry();
 }
diff --git a/src/tools/drawTools/vtoolcutsplinepath.cpp b/src/tools/drawTools/vtoolcutsplinepath.cpp
index e8ff9a8e9..92a43ddd0 100644
--- a/src/tools/drawTools/vtoolcutsplinepath.cpp
+++ b/src/tools/drawTools/vtoolcutsplinepath.cpp
@@ -247,7 +247,7 @@ void VToolCutSplinePath::FullUpdateFromFile()
     if (domElement.isElement())
     {
         formula = domElement.attribute(AttrLength, "");
-        splinePathId = domElement.attribute(AttrSplinePath, "").toLongLong();
+        splinePathId = domElement.attribute(AttrSplinePath, "").toUInt();
     }
     RefreshGeometry();
 }
diff --git a/src/tools/drawTools/vtoolendline.cpp b/src/tools/drawTools/vtoolendline.cpp
index 2fb50a4ff..68504a32d 100644
--- a/src/tools/drawTools/vtoolendline.cpp
+++ b/src/tools/drawTools/vtoolendline.cpp
@@ -127,7 +127,7 @@ void VToolEndLine::FullUpdateFromFile()
     {
         typeLine = domElement.attribute(AttrTypeLine, "");
         formula = domElement.attribute(AttrLength, "");
-        basePointId = domElement.attribute(AttrBasePoint, "").toLongLong();
+        basePointId = domElement.attribute(AttrBasePoint, "").toUInt();
         angle = domElement.attribute(AttrAngle, "").toInt();
     }
     RefreshGeometry();
diff --git a/src/tools/drawTools/vtoolheight.cpp b/src/tools/drawTools/vtoolheight.cpp
index bddc198b7..9f3525cba 100644
--- a/src/tools/drawTools/vtoolheight.cpp
+++ b/src/tools/drawTools/vtoolheight.cpp
@@ -131,9 +131,9 @@ void VToolHeight::FullUpdateFromFile()
     if (domElement.isElement())
     {
         typeLine = domElement.attribute(AttrTypeLine, "");
-        basePointId = domElement.attribute(AttrBasePoint, "").toLongLong();
-        p1LineId = domElement.attribute(AttrP1Line, "").toLongLong();
-        p2LineId = domElement.attribute(AttrP2Line, "").toLongLong();
+        basePointId = domElement.attribute(AttrBasePoint, "").toUInt();
+        p1LineId = domElement.attribute(AttrP1Line, "").toUInt();
+        p2LineId = domElement.attribute(AttrP2Line, "").toUInt();
     }
     RefreshGeometry();
 
diff --git a/src/tools/drawTools/vtoollineintersect.cpp b/src/tools/drawTools/vtoollineintersect.cpp
index 8f1aef09a..d6ec5cc8f 100644
--- a/src/tools/drawTools/vtoollineintersect.cpp
+++ b/src/tools/drawTools/vtoollineintersect.cpp
@@ -136,10 +136,10 @@ void VToolLineIntersect::FullUpdateFromFile()
     QDomElement domElement = doc->elementById(QString().setNum(id));
     if (domElement.isElement())
     {
-        p1Line1 = domElement.attribute(AttrP1Line1, "").toLongLong();
-        p2Line1 = domElement.attribute(AttrP2Line1, "").toLongLong();
-        p1Line2 = domElement.attribute(AttrP1Line2, "").toLongLong();
-        p2Line2 = domElement.attribute(AttrP2Line2, "").toLongLong();
+        p1Line1 = domElement.attribute(AttrP1Line1, "").toUInt();
+        p2Line1 = domElement.attribute(AttrP2Line1, "").toUInt();
+        p1Line2 = domElement.attribute(AttrP1Line2, "").toUInt();
+        p2Line2 = domElement.attribute(AttrP2Line2, "").toUInt();
     }
     RefreshPointGeometry(*VAbstractTool::data.GeometricObject<const VPointF *>(id));
 }
diff --git a/src/tools/drawTools/vtoolnormal.cpp b/src/tools/drawTools/vtoolnormal.cpp
index 88ea3ae81..bcc9f0eb0 100644
--- a/src/tools/drawTools/vtoolnormal.cpp
+++ b/src/tools/drawTools/vtoolnormal.cpp
@@ -140,8 +140,8 @@ void VToolNormal::FullUpdateFromFile()
     {
         typeLine = domElement.attribute(AttrTypeLine, "");
         formula = domElement.attribute(AttrLength, "");
-        basePointId = domElement.attribute(AttrFirstPoint, "").toLongLong();
-        secondPointId = domElement.attribute(AttrSecondPoint, "").toLongLong();
+        basePointId = domElement.attribute(AttrFirstPoint, "").toUInt();
+        secondPointId = domElement.attribute(AttrSecondPoint, "").toUInt();
         angle = domElement.attribute(AttrAngle, "").toDouble();
     }
     RefreshGeometry();
diff --git a/src/tools/drawTools/vtoolpointofcontact.cpp b/src/tools/drawTools/vtoolpointofcontact.cpp
index 21b944bd3..0791d4dfd 100644
--- a/src/tools/drawTools/vtoolpointofcontact.cpp
+++ b/src/tools/drawTools/vtoolpointofcontact.cpp
@@ -160,9 +160,9 @@ void VToolPointOfContact::FullUpdateFromFile()
     if (domElement.isElement())
     {
         arcRadius = domElement.attribute(AttrRadius, "");
-        center = domElement.attribute(AttrCenter, "").toLongLong();
-        firstPointId = domElement.attribute(AttrFirstPoint, "").toLongLong();
-        secondPointId = domElement.attribute(AttrSecondPoint, "").toLongLong();
+        center = domElement.attribute(AttrCenter, "").toUInt();
+        firstPointId = domElement.attribute(AttrFirstPoint, "").toUInt();
+        secondPointId = domElement.attribute(AttrSecondPoint, "").toUInt();
     }
     RefreshPointGeometry(*VAbstractTool::data.GeometricObject<const VPointF *>(id));
 }
diff --git a/src/tools/drawTools/vtoolpointofintersection.cpp b/src/tools/drawTools/vtoolpointofintersection.cpp
index 1b1fbaac9..6744f1d6f 100644
--- a/src/tools/drawTools/vtoolpointofintersection.cpp
+++ b/src/tools/drawTools/vtoolpointofintersection.cpp
@@ -111,8 +111,8 @@ void VToolPointOfIntersection::FullUpdateFromFile()
     QDomElement domElement = doc->elementById(QString().setNum(id));
     if (domElement.isElement())
     {
-        firstPointId = domElement.attribute(AttrFirstPoint, "").toLongLong();
-        secondPointId = domElement.attribute(AttrSecondPoint, "").toLongLong();
+        firstPointId = domElement.attribute(AttrFirstPoint, "").toUInt();
+        secondPointId = domElement.attribute(AttrSecondPoint, "").toUInt();
     }
     VToolPoint::RefreshPointGeometry(*VDrawTool::data.GeometricObject<const VPointF *>(id));
 }
diff --git a/src/tools/drawTools/vtoolshoulderpoint.cpp b/src/tools/drawTools/vtoolshoulderpoint.cpp
index 962298b69..95ca09e19 100644
--- a/src/tools/drawTools/vtoolshoulderpoint.cpp
+++ b/src/tools/drawTools/vtoolshoulderpoint.cpp
@@ -162,9 +162,9 @@ void VToolShoulderPoint::FullUpdateFromFile()
     {
         typeLine = domElement.attribute(AttrTypeLine, "");
         formula = domElement.attribute(AttrLength, "");
-        basePointId = domElement.attribute(AttrP1Line, "").toLongLong();
-        p2Line = domElement.attribute(AttrP2Line, "").toLongLong();
-        pShoulder = domElement.attribute(AttrPShoulder, "").toLongLong();
+        basePointId = domElement.attribute(AttrP1Line, "").toUInt();
+        p2Line = domElement.attribute(AttrP2Line, "").toUInt();
+        pShoulder = domElement.attribute(AttrPShoulder, "").toUInt();
     }
     RefreshGeometry();
 }
diff --git a/src/tools/drawTools/vtooltriangle.cpp b/src/tools/drawTools/vtooltriangle.cpp
index 8fd15aa2f..1e86786ee 100644
--- a/src/tools/drawTools/vtooltriangle.cpp
+++ b/src/tools/drawTools/vtooltriangle.cpp
@@ -163,10 +163,10 @@ void VToolTriangle::FullUpdateFromFile()
     QDomElement domElement = doc->elementById(QString().setNum(id));
     if (domElement.isElement())
     {
-        axisP1Id = domElement.attribute(AttrAxisP1, "").toLongLong();
-        axisP2Id = domElement.attribute(AttrAxisP2, "").toLongLong();
-        firstPointId = domElement.attribute(AttrFirstPoint, "").toLongLong();
-        secondPointId = domElement.attribute(AttrSecondPoint, "").toLongLong();
+        axisP1Id = domElement.attribute(AttrAxisP1, "").toUInt();
+        axisP2Id = domElement.attribute(AttrAxisP2, "").toUInt();
+        firstPointId = domElement.attribute(AttrFirstPoint, "").toUInt();
+        secondPointId = domElement.attribute(AttrSecondPoint, "").toUInt();
     }
     VToolPoint::RefreshPointGeometry(*VDrawTool::data.GeometricObject<const VPointF *>(id));
 }
diff --git a/src/xml/vdomdocument.cpp b/src/xml/vdomdocument.cpp
index 041330daf..734ebae19 100644
--- a/src/xml/vdomdocument.cpp
+++ b/src/xml/vdomdocument.cpp
@@ -31,6 +31,37 @@
 #include "../exception/vexceptionemptyparameter.h"
 #include "../exception/vexceptionbadid.h"
 
+#include <QAbstractMessageHandler>
+#include <QXmlSchema>
+#include <QXmlSchemaValidator>
+#include <QFile>
+
+//This class need for validation pattern file using XSD shema
+class MessageHandler : public QAbstractMessageHandler
+{
+public:
+    MessageHandler() : QAbstractMessageHandler(0), m_messageType(QtMsgType()), m_description(QString()),
+        m_sourceLocation(QSourceLocation()){}
+    inline QString statusMessage() const {return m_description;}
+    inline qint64     line() const {return m_sourceLocation.line();}
+    inline qint64     column() const {return m_sourceLocation.column();}
+protected:
+    virtual void handleMessage(QtMsgType type, const QString &description,
+                               const QUrl &identifier, const QSourceLocation &sourceLocation)
+    {
+        Q_UNUSED(type);
+        Q_UNUSED(identifier);
+
+        m_messageType = type;
+        m_description = description;
+        m_sourceLocation = sourceLocation;
+    }
+private:
+    QtMsgType       m_messageType;
+    QString         m_description;
+    QSourceLocation m_sourceLocation;
+};
+
 VDomDocument::VDomDocument(VContainer *data)
     : QDomDocument(), data(data), map(QHash<QString, QDomElement>())
 {
@@ -162,3 +193,53 @@ QString VDomDocument::UniqueTagText(const QString &tagName, const QString &defVa
     }
     return defVal;
 }
+
+bool VDomDocument::ValidatePattern(const QString &schema, const QString &fileName, QString &errorMsg, qint64 &errorLine,
+                                   qint64 &errorColumn)
+{
+    errorLine = -1;
+    errorColumn = -1;
+    QFile pattern(fileName);
+    if (pattern.open(QIODevice::ReadOnly) == false)
+    {
+        errorMsg = QString(tr("Can't open file %1:\n%2.").arg(fileName).arg(pattern.errorString()));
+        return false;
+    }
+    QFile fileSchema(schema);
+    if (fileSchema.open(QIODevice::ReadOnly) == false)
+    {
+        errorMsg = QString(tr("Can't open schema file %1:\n%2.").arg(schema).arg(fileSchema.errorString()));
+        return false;
+    }
+
+    MessageHandler messageHandler;
+    QXmlSchema sch;
+    sch.setMessageHandler(&messageHandler);
+    sch.load(&fileSchema, QUrl::fromLocalFile(fileSchema.fileName()));
+
+    bool errorOccurred = false;
+    if (sch.isValid() == false)
+    {
+        errorOccurred = true;
+    }
+    else
+    {
+        QXmlSchemaValidator validator(sch);
+        if (validator.validate(&pattern, QUrl::fromLocalFile(pattern.fileName())) == false)
+        {
+            errorOccurred = true;
+        }
+    }
+
+    if (errorOccurred)
+    {
+        errorMsg = messageHandler.statusMessage();
+        errorLine = messageHandler.line();
+        errorColumn = messageHandler.column();
+        return false;
+    }
+    else
+    {
+        return true;
+    }
+}
diff --git a/src/xml/vdomdocument.h b/src/xml/vdomdocument.h
index 2b510dd66..e1a944956 100644
--- a/src/xml/vdomdocument.h
+++ b/src/xml/vdomdocument.h
@@ -101,6 +101,17 @@ public:
      */
     qreal          GetParametrDouble(const QDomElement& domElement, const QString &name, const QString &defValue) const;
     QString        UniqueTagText(const QString &tagName, const QString &defVal = QString()) const;
+    /**
+     * @brief ValidatePattern validate pattern file by xsd schema.
+     * @param schema path to schema file.
+     * @param fileName name of pattern file.
+     * @param errorMsg error message.
+     * @param errorLine number error line.
+     * @param errorColumn number error column.
+     * @return true if validation successful.
+     */
+    static bool ValidatePattern(const QString &schema, const QString &fileName, QString &errorMsg, qint64 &errorLine,
+                         qint64 &errorColumn);
 protected:
     /**
      * @brief data container with data.