diff --git a/src/app/valentina/mainwindow.cpp b/src/app/valentina/mainwindow.cpp
index bbe9a4cf4..8c3361f59 100644
--- a/src/app/valentina/mainwindow.cpp
+++ b/src/app/valentina/mainwindow.cpp
@@ -636,7 +636,7 @@ void MainWindow::SetToolButton(bool checked, Tool t, const QString &cursor, cons
         ui->view->setCurrentCursorShape(); // Hack to fix problem with a cursor
         m_statusLabel->setText(toolTip);
         ui->view->setShowToolOptions(false);
-        dialogTool = QSharedPointer<Dialog>(new Dialog(pattern, 0, this));
+        dialogTool = new Dialog(pattern, 0, this);
 
         // This check helps to find missed tools in the switch
         Q_STATIC_ASSERT_X(static_cast<int>(Tool::LAST_ONE_DO_NOT_USE) == 55, "Check if need to extend.");
@@ -1229,8 +1229,8 @@ void MainWindow::ClosedDialogGroup(int result)
     SCASSERT(dialogTool != nullptr)
     if (result == QDialog::Accepted)
     {
-        QSharedPointer<DialogGroup> dialog = dialogTool.objectCast<DialogGroup>();
-        SCASSERT(dialog != nullptr)
+        const QPointer<DialogGroup> dialog = qobject_cast<DialogGroup *>(dialogTool);
+        SCASSERT(not dialog.isNull())
         const QDomElement group = doc->CreateGroup(VContainer::getNextId(), dialog->GetName(), dialog->GetGroup());
         if (not group.isNull())
         {
@@ -1284,8 +1284,8 @@ void MainWindow::ClosedDialogInsertNode(int result)
     SCASSERT(dialogTool != nullptr);
     if (result == QDialog::Accepted)
     {
-        QSharedPointer<DialogInsertNode> dTool = dialogTool.objectCast<DialogInsertNode>();
-        SCASSERT(dTool != nullptr)
+        const QPointer<DialogInsertNode> dTool = qobject_cast<DialogInsertNode *>(dialogTool);
+        SCASSERT(not dTool.isNull())
         VToolSeamAllowance::InsertNode(dTool->GetNode(), dTool->GetPieceId(), sceneDetails, pattern, doc);
     }
     ArrowTool(true);
@@ -2193,7 +2193,11 @@ void MainWindow::CancelTool()
     Q_STATIC_ASSERT_X(static_cast<int>(Tool::LAST_ONE_DO_NOT_USE) == 55, "Not all tools were handled.");
 
     qCDebug(vMainWindow, "Canceling tool.");
-    dialogTool.clear();
+    if(not dialogTool.isNull())
+    {
+        dialogTool->hide();
+        dialogTool->deleteLater();
+    }
     qCDebug(vMainWindow, "Dialog closed.");
 
     currentScene->setFocus(Qt::OtherFocusReason);
diff --git a/src/app/valentina/mainwindow.h b/src/app/valentina/mainwindow.h
index f18d91aaf..d336fe7fe 100644
--- a/src/app/valentina/mainwindow.h
+++ b/src/app/valentina/mainwindow.h
@@ -238,7 +238,7 @@ private:
     bool               patternReadOnly;
 
     QPointer<DialogIncrements>        dialogTable;
-    QSharedPointer<DialogTool>        dialogTool;
+    QPointer<DialogTool>              dialogTool;
     QPointer<DialogHistory>           dialogHistory;
     QPointer<DialogFinalMeasurements> dialogFMeasurements;
 
diff --git a/src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyaxis.cpp b/src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyaxis.cpp
index 388fe4ce2..8d8f60f31 100644
--- a/src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyaxis.cpp
+++ b/src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyaxis.cpp
@@ -70,7 +70,7 @@ const QString VToolFlippingByAxis::ToolType = QStringLiteral("flippingByAxis");
 void VToolFlippingByAxis::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogFlippingByAxis> dialogTool = m_dialog.objectCast<DialogFlippingByAxis>();
+    const QPointer<DialogFlippingByAxis> dialogTool = qobject_cast<DialogFlippingByAxis *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     dialogTool->SetOriginPointId(m_originPointId);
     dialogTool->SetAxisType(m_axisType);
@@ -78,11 +78,11 @@ void VToolFlippingByAxis::setDialog()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolFlippingByAxis *VToolFlippingByAxis::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolFlippingByAxis *VToolFlippingByAxis::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                                  VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogFlippingByAxis> dialogTool = dialog.objectCast<DialogFlippingByAxis>();
+    const QPointer<DialogFlippingByAxis> dialogTool = qobject_cast<DialogFlippingByAxis *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolFlippingByAxisInitData initData;
@@ -99,7 +99,7 @@ VToolFlippingByAxis *VToolFlippingByAxis::Create(QSharedPointer<DialogTool> dial
     VToolFlippingByAxis* operation = Create(initData);
     if (operation != nullptr)
     {
-        operation->m_dialog = dialogTool;
+        operation->m_dialog = dialog;
     }
     return operation;
 }
@@ -200,7 +200,7 @@ void VToolFlippingByAxis::SaveDialog(QDomElement &domElement, QList<quint32> &ol
                                      QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogFlippingByAxis> dialogTool = m_dialog.objectCast<DialogFlippingByAxis>();
+    const QPointer<DialogFlippingByAxis> dialogTool = qobject_cast<DialogFlippingByAxis *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, m_originPointId);
diff --git a/src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyaxis.h b/src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyaxis.h
index 524257efd..d9c1a07c3 100644
--- a/src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyaxis.h
+++ b/src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyaxis.h
@@ -51,7 +51,7 @@ class VToolFlippingByAxis : public VAbstractFlipping
 public:
     virtual ~VToolFlippingByAxis() Q_DECL_EQ_DEFAULT;
     virtual void setDialog() override;
-    static VToolFlippingByAxis* Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+    static VToolFlippingByAxis* Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                        VAbstractPattern *doc, VContainer *data);
     static VToolFlippingByAxis* Create(VToolFlippingByAxisInitData initData);
 
diff --git a/src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyline.cpp b/src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyline.cpp
index 02217d8e5..f2ef954f3 100644
--- a/src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyline.cpp
+++ b/src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyline.cpp
@@ -70,7 +70,7 @@ const QString VToolFlippingByLine::ToolType = QStringLiteral("flippingByLine");
 void VToolFlippingByLine::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogFlippingByLine> dialogTool = m_dialog.objectCast<DialogFlippingByLine>();
+    const QPointer<DialogFlippingByLine> dialogTool = qobject_cast<DialogFlippingByLine *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     dialogTool->SetFirstLinePointId(m_firstLinePointId);
     dialogTool->SetSecondLinePointId(m_secondLinePointId);
@@ -78,11 +78,11 @@ void VToolFlippingByLine::setDialog()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolFlippingByLine *VToolFlippingByLine::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolFlippingByLine *VToolFlippingByLine::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                                  VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogFlippingByLine> dialogTool = dialog.objectCast<DialogFlippingByLine>();
+    const QPointer<DialogFlippingByLine> dialogTool = qobject_cast<DialogFlippingByLine *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolFlippingByLineInitData initData;
@@ -99,7 +99,7 @@ VToolFlippingByLine *VToolFlippingByLine::Create(QSharedPointer<DialogTool> dial
     VToolFlippingByLine* operation = Create(initData);
     if (operation != nullptr)
     {
-        operation->m_dialog = dialogTool;
+        operation->m_dialog = dialog;
     }
     return operation;
 }
@@ -185,7 +185,7 @@ void VToolFlippingByLine::SaveDialog(QDomElement &domElement, QList<quint32> &ol
                                      QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogFlippingByLine> dialogTool = m_dialog.objectCast<DialogFlippingByLine>();
+    const QPointer<DialogFlippingByLine> dialogTool = qobject_cast<DialogFlippingByLine *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, m_firstLinePointId);
diff --git a/src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyline.h b/src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyline.h
index 069cfdac1..44c802309 100644
--- a/src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyline.h
+++ b/src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyline.h
@@ -52,7 +52,7 @@ class VToolFlippingByLine : public VAbstractFlipping
 public:
     virtual ~VToolFlippingByLine() Q_DECL_EQ_DEFAULT;
     virtual void setDialog() override;
-    static VToolFlippingByLine* Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+    static VToolFlippingByLine* Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                        VAbstractPattern *doc, VContainer *data);
     static VToolFlippingByLine* Create(VToolFlippingByLineInitData initData);
 
diff --git a/src/libs/vtools/tools/drawTools/operation/vtoolmove.cpp b/src/libs/vtools/tools/drawTools/operation/vtoolmove.cpp
index 4a4a6791f..0d9461f7d 100644
--- a/src/libs/vtools/tools/drawTools/operation/vtoolmove.cpp
+++ b/src/libs/vtools/tools/drawTools/operation/vtoolmove.cpp
@@ -131,7 +131,7 @@ QT_WARNING_POP
 void VToolMove::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogMove> dialogTool = m_dialog.objectCast<DialogMove>();
+    const QPointer<DialogMove> dialogTool = qobject_cast<DialogMove *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     dialogTool->SetAngle(formulaAngle);
     dialogTool->SetRotationAngle(formulaRotationAngle);
@@ -141,11 +141,11 @@ void VToolMove::setDialog()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolMove *VToolMove::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
+VToolMove *VToolMove::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
                              VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogMove> dialogTool = dialog.objectCast<DialogMove>();
+    const QPointer<DialogMove> dialogTool = qobject_cast<DialogMove *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolMoveInitData initData;
@@ -164,7 +164,7 @@ VToolMove *VToolMove::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsSce
     VToolMove* operation = Create(initData);
     if (operation != nullptr)
     {
-        operation->m_dialog = dialogTool;
+        operation->m_dialog = dialog;
     }
     return operation;
 }
@@ -463,7 +463,7 @@ void VToolMove::SetVisualization()
 void VToolMove::SaveDialog(QDomElement &domElement, QList<quint32> &oldDependencies, QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogMove> dialogTool = m_dialog.objectCast<DialogMove>();
+    const QPointer<DialogMove> dialogTool = qobject_cast<DialogMove *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, origPointId);
diff --git a/src/libs/vtools/tools/drawTools/operation/vtoolmove.h b/src/libs/vtools/tools/drawTools/operation/vtoolmove.h
index 120b5a320..50961a9af 100644
--- a/src/libs/vtools/tools/drawTools/operation/vtoolmove.h
+++ b/src/libs/vtools/tools/drawTools/operation/vtoolmove.h
@@ -67,7 +67,7 @@ class VToolMove : public VAbstractOperation
 public:
     virtual ~VToolMove() Q_DECL_EQ_DEFAULT;
     virtual void setDialog() override;
-    static VToolMove* Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
+    static VToolMove* Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
                              VContainer *data);
     static VToolMove* Create(VToolMoveInitData &initData);
 
diff --git a/src/libs/vtools/tools/drawTools/operation/vtoolrotation.cpp b/src/libs/vtools/tools/drawTools/operation/vtoolrotation.cpp
index 094c714bc..353be5a85 100644
--- a/src/libs/vtools/tools/drawTools/operation/vtoolrotation.cpp
+++ b/src/libs/vtools/tools/drawTools/operation/vtoolrotation.cpp
@@ -94,7 +94,7 @@ VToolRotation::VToolRotation(const VToolRotationInitData &initData, QGraphicsIte
 void VToolRotation::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogRotation> dialogTool = m_dialog.objectCast<DialogRotation>();
+    const QPointer<DialogRotation> dialogTool = qobject_cast<DialogRotation *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     dialogTool->SetOrigPointId(origPointId);
     dialogTool->SetAngle(formulaAngle);
@@ -102,11 +102,11 @@ void VToolRotation::setDialog()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolRotation *VToolRotation::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolRotation *VToolRotation::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                      VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogRotation> dialogTool = dialog.objectCast<DialogRotation>();
+    const QPointer<DialogRotation> dialogTool = qobject_cast<DialogRotation *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolRotationInitData initData;
@@ -123,7 +123,7 @@ VToolRotation *VToolRotation::Create(QSharedPointer<DialogTool> dialog, VMainGra
     VToolRotation* operation = Create(initData);
     if (operation != nullptr)
     {
-        operation->m_dialog = dialogTool;
+        operation->m_dialog = dialog;
     }
     return operation;
 }
@@ -336,7 +336,7 @@ void VToolRotation::SaveDialog(QDomElement &domElement, QList<quint32> &oldDepen
                                QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogRotation> dialogTool = m_dialog.objectCast<DialogRotation>();
+    const QPointer<DialogRotation> dialogTool = qobject_cast<DialogRotation *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, origPointId);
diff --git a/src/libs/vtools/tools/drawTools/operation/vtoolrotation.h b/src/libs/vtools/tools/drawTools/operation/vtoolrotation.h
index 9acebfb8e..1168d5107 100644
--- a/src/libs/vtools/tools/drawTools/operation/vtoolrotation.h
+++ b/src/libs/vtools/tools/drawTools/operation/vtoolrotation.h
@@ -63,7 +63,7 @@ class VToolRotation : public VAbstractOperation
 public:
     virtual ~VToolRotation() Q_DECL_EQ_DEFAULT;
     virtual void setDialog() override;
-    static VToolRotation* Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
+    static VToolRotation* Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
                                  VContainer *data);
     static VToolRotation* Create(VToolRotationInitData &initData);
 
diff --git a/src/libs/vtools/tools/drawTools/toolcurve/vtoolarc.cpp b/src/libs/vtools/tools/drawTools/toolcurve/vtoolarc.cpp
index 4c28c5f46..6fce634c6 100644
--- a/src/libs/vtools/tools/drawTools/toolcurve/vtoolarc.cpp
+++ b/src/libs/vtools/tools/drawTools/toolcurve/vtoolarc.cpp
@@ -80,7 +80,7 @@ VToolArc::VToolArc(const VToolArcInitData &initData, QGraphicsItem *parent)
 void VToolArc::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogArc> dialogTool = m_dialog.objectCast<DialogArc>();
+    const QPointer<DialogArc> dialogTool = qobject_cast<DialogArc *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VArc> arc = VAbstractTool::data.GeometricObject<VArc>(m_id);
     dialogTool->SetCenter(arc->GetCenter().id());
@@ -100,11 +100,11 @@ void VToolArc::setDialog()
  * @param doc dom document container
  * @param data container with variables
  */
-VToolArc* VToolArc::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
+VToolArc* VToolArc::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
                            VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogArc> dialogTool = dialog.objectCast<DialogArc>();
+    const QPointer<DialogArc> dialogTool = qobject_cast<DialogArc *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolArcInitData initData;
@@ -124,7 +124,7 @@ VToolArc* VToolArc::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene
     VToolArc* point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -321,7 +321,7 @@ void VToolArc::RemoveReferens()
 void VToolArc::SaveDialog(QDomElement &domElement, QList<quint32> &oldDependencies, QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogArc> dialogTool = m_dialog.objectCast<DialogArc>();
+    QPointer<DialogArc> dialogTool = qobject_cast<DialogArc *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     QSharedPointer<VArc> arc = VAbstractTool::data.GeometricObject<VArc>(m_id);
diff --git a/src/libs/vtools/tools/drawTools/toolcurve/vtoolarc.h b/src/libs/vtools/tools/drawTools/toolcurve/vtoolarc.h
index 4aa06675e..14d005512 100644
--- a/src/libs/vtools/tools/drawTools/toolcurve/vtoolarc.h
+++ b/src/libs/vtools/tools/drawTools/toolcurve/vtoolarc.h
@@ -67,7 +67,7 @@ class VToolArc :public VToolAbstractArc
     Q_OBJECT
 public:
     virtual void     setDialog() override;
-    static VToolArc* Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene, VAbstractPattern *doc,
+    static VToolArc* Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene, VAbstractPattern *doc,
                             VContainer *data);
     static VToolArc* Create(VToolArcInitData &initData);
 
diff --git a/src/libs/vtools/tools/drawTools/toolcurve/vtoolarcwithlength.cpp b/src/libs/vtools/tools/drawTools/toolcurve/vtoolarcwithlength.cpp
index 517750d1d..1a9198f4d 100644
--- a/src/libs/vtools/tools/drawTools/toolcurve/vtoolarcwithlength.cpp
+++ b/src/libs/vtools/tools/drawTools/toolcurve/vtoolarcwithlength.cpp
@@ -73,7 +73,7 @@ VToolArcWithLength::VToolArcWithLength(const VToolArcWithLengthInitData &initDat
 void VToolArcWithLength::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogArcWithLength> dialogTool = m_dialog.objectCast<DialogArcWithLength>();
+    const QPointer<DialogArcWithLength> dialogTool = qobject_cast<DialogArcWithLength *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VArc> arc = VAbstractTool::data.GeometricObject<VArc>(m_id);
     dialogTool->SetCenter(arc->GetCenter().id());
@@ -86,11 +86,11 @@ void VToolArcWithLength::setDialog()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolArcWithLength *VToolArcWithLength::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolArcWithLength *VToolArcWithLength::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                                VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogArcWithLength> dialogTool = dialog.objectCast<DialogArcWithLength>();
+    const QPointer<DialogArcWithLength> dialogTool = qobject_cast<DialogArcWithLength *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolArcWithLengthInitData initData;
@@ -110,7 +110,7 @@ VToolArcWithLength *VToolArcWithLength::Create(QSharedPointer<DialogTool> dialog
     VToolArcWithLength* point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -299,7 +299,7 @@ void VToolArcWithLength::SaveDialog(QDomElement &domElement, QList<quint32> &old
                                     QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogArcWithLength> dialogTool = m_dialog.objectCast<DialogArcWithLength>();
+    const QPointer<DialogArcWithLength> dialogTool = qobject_cast<DialogArcWithLength *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     QSharedPointer<VArc> arc = VAbstractTool::data.GeometricObject<VArc>(m_id);
diff --git a/src/libs/vtools/tools/drawTools/toolcurve/vtoolarcwithlength.h b/src/libs/vtools/tools/drawTools/toolcurve/vtoolarcwithlength.h
index e98b9b647..bc46bdf24 100644
--- a/src/libs/vtools/tools/drawTools/toolcurve/vtoolarcwithlength.h
+++ b/src/libs/vtools/tools/drawTools/toolcurve/vtoolarcwithlength.h
@@ -64,7 +64,7 @@ class VToolArcWithLength : public VToolAbstractArc
     Q_OBJECT
 public:
     virtual void     setDialog() override;
-    static VToolArcWithLength* Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene,
+    static VToolArcWithLength* Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene,
                                       VAbstractPattern *doc, VContainer *data);
     static VToolArcWithLength* Create(VToolArcWithLengthInitData &initData);
 
diff --git a/src/libs/vtools/tools/drawTools/toolcurve/vtoolcubicbezier.cpp b/src/libs/vtools/tools/drawTools/toolcurve/vtoolcubicbezier.cpp
index 515f78ced..09bb5943e 100644
--- a/src/libs/vtools/tools/drawTools/toolcurve/vtoolcubicbezier.cpp
+++ b/src/libs/vtools/tools/drawTools/toolcurve/vtoolcubicbezier.cpp
@@ -78,11 +78,11 @@ void VToolCubicBezier::setDialog()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolCubicBezier *VToolCubicBezier::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolCubicBezier *VToolCubicBezier::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                            VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogCubicBezier> dialogTool = dialog.objectCast<DialogCubicBezier>();
+    const QPointer<DialogCubicBezier> dialogTool = qobject_cast<DialogCubicBezier *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolCubicBezierInitData initData;
@@ -97,7 +97,7 @@ VToolCubicBezier *VToolCubicBezier::Create(QSharedPointer<DialogTool> dialog, VM
 
     if (spl != nullptr)
     {
-        spl->m_dialog = dialogTool;
+        spl->m_dialog = dialog;
     }
     return spl;
 }
diff --git a/src/libs/vtools/tools/drawTools/toolcurve/vtoolcubicbezier.h b/src/libs/vtools/tools/drawTools/toolcurve/vtoolcubicbezier.h
index c27f4b23d..1b5c47e60 100644
--- a/src/libs/vtools/tools/drawTools/toolcurve/vtoolcubicbezier.h
+++ b/src/libs/vtools/tools/drawTools/toolcurve/vtoolcubicbezier.h
@@ -64,7 +64,7 @@ class VToolCubicBezier : public VAbstractSpline
 public:
     virtual ~VToolCubicBezier() Q_DECL_EQ_DEFAULT;
     virtual void setDialog() override;
-    static VToolCubicBezier *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+    static VToolCubicBezier *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                     VAbstractPattern *doc, VContainer *data);
     static VToolCubicBezier *Create(VToolCubicBezierInitData initData);
     static const QString ToolType;
diff --git a/src/libs/vtools/tools/drawTools/toolcurve/vtoolcubicbezierpath.cpp b/src/libs/vtools/tools/drawTools/toolcurve/vtoolcubicbezierpath.cpp
index e4a97bda9..4f886e544 100644
--- a/src/libs/vtools/tools/drawTools/toolcurve/vtoolcubicbezierpath.cpp
+++ b/src/libs/vtools/tools/drawTools/toolcurve/vtoolcubicbezierpath.cpp
@@ -80,11 +80,11 @@ void VToolCubicBezierPath::setDialog()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolCubicBezierPath *VToolCubicBezierPath::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolCubicBezierPath *VToolCubicBezierPath::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                                    VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogCubicBezierPath> dialogTool = dialog.objectCast<DialogCubicBezierPath>();
+    const QPointer<DialogCubicBezierPath> dialogTool = qobject_cast<DialogCubicBezierPath *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolCubicBezierPathInitData initData;
@@ -103,7 +103,7 @@ VToolCubicBezierPath *VToolCubicBezierPath::Create(QSharedPointer<DialogTool> di
     VToolCubicBezierPath* spl = Create(initData);
     if (spl != nullptr)
     {
-        spl->m_dialog = dialogTool;
+        spl->m_dialog = dialog;
     }
     return spl;
 }
diff --git a/src/libs/vtools/tools/drawTools/toolcurve/vtoolcubicbezierpath.h b/src/libs/vtools/tools/drawTools/toolcurve/vtoolcubicbezierpath.h
index f28451330..120289198 100644
--- a/src/libs/vtools/tools/drawTools/toolcurve/vtoolcubicbezierpath.h
+++ b/src/libs/vtools/tools/drawTools/toolcurve/vtoolcubicbezierpath.h
@@ -64,7 +64,7 @@ class VToolCubicBezierPath:public VAbstractSpline
 public:
     virtual ~VToolCubicBezierPath() Q_DECL_EQ_DEFAULT;
     virtual void setDialog() override;
-    static VToolCubicBezierPath *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene,
+    static VToolCubicBezierPath *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene,
                                         VAbstractPattern *doc, VContainer *data);
     static VToolCubicBezierPath *Create(VToolCubicBezierPathInitData initData);
 
diff --git a/src/libs/vtools/tools/drawTools/toolcurve/vtoolellipticalarc.cpp b/src/libs/vtools/tools/drawTools/toolcurve/vtoolellipticalarc.cpp
index e3feaf8f7..fa8b4e572 100644
--- a/src/libs/vtools/tools/drawTools/toolcurve/vtoolellipticalarc.cpp
+++ b/src/libs/vtools/tools/drawTools/toolcurve/vtoolellipticalarc.cpp
@@ -81,7 +81,7 @@ VToolEllipticalArc::VToolEllipticalArc(const VToolEllipticalArcInitData &initDat
 void VToolEllipticalArc::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogEllipticalArc> dialogTool = m_dialog.objectCast<DialogEllipticalArc>();
+    const QPointer<DialogEllipticalArc> dialogTool = qobject_cast<DialogEllipticalArc *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VEllipticalArc> elArc = VAbstractTool::data.GeometricObject<VEllipticalArc>(m_id);
     dialogTool->SetCenter(elArc->GetCenter().id());
@@ -102,11 +102,11 @@ void VToolEllipticalArc::setDialog()
  * @param doc dom document container
  * @param data container with variables
  */
-VToolEllipticalArc* VToolEllipticalArc::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolEllipticalArc* VToolEllipticalArc::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                                VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogEllipticalArc> dialogTool = dialog.objectCast<DialogEllipticalArc>();
+    const QPointer<DialogEllipticalArc> dialogTool = qobject_cast<DialogEllipticalArc *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolEllipticalArcInitData initData;
@@ -128,7 +128,7 @@ VToolEllipticalArc* VToolEllipticalArc::Create(QSharedPointer<DialogTool> dialog
     VToolEllipticalArc* point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -367,7 +367,7 @@ void VToolEllipticalArc::SaveDialog(QDomElement &domElement, QList<quint32> &old
                                     QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogEllipticalArc> dialogTool = m_dialog.objectCast<DialogEllipticalArc>();
+    const QPointer<DialogEllipticalArc> dialogTool = qobject_cast<DialogEllipticalArc *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     const auto elArc = VAbstractTool::data.GeometricObject<VEllipticalArc>(m_id);
diff --git a/src/libs/vtools/tools/drawTools/toolcurve/vtoolellipticalarc.h b/src/libs/vtools/tools/drawTools/toolcurve/vtoolellipticalarc.h
index e5e7d43e9..da3634b9d 100644
--- a/src/libs/vtools/tools/drawTools/toolcurve/vtoolellipticalarc.h
+++ b/src/libs/vtools/tools/drawTools/toolcurve/vtoolellipticalarc.h
@@ -71,7 +71,7 @@ class VToolEllipticalArc : public VToolAbstractArc
     Q_OBJECT
 public:
     virtual void     setDialog() override;
-    static VToolEllipticalArc* Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene,
+    static VToolEllipticalArc* Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene,
                                       VAbstractPattern *doc, VContainer *data);
     static VToolEllipticalArc* Create(VToolEllipticalArcInitData &initData);
     static const QString ToolType;
diff --git a/src/libs/vtools/tools/drawTools/toolcurve/vtoolspline.cpp b/src/libs/vtools/tools/drawTools/toolcurve/vtoolspline.cpp
index d82b89f7c..f9498568a 100644
--- a/src/libs/vtools/tools/drawTools/toolcurve/vtoolspline.cpp
+++ b/src/libs/vtools/tools/drawTools/toolcurve/vtoolspline.cpp
@@ -127,7 +127,7 @@ VToolSpline::VToolSpline(VToolSplineInitData initData, QGraphicsItem *parent)
 void VToolSpline::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogSpline> dialogTool = m_dialog.objectCast<DialogSpline>();
+    const QPointer<DialogSpline> dialogTool = qobject_cast<DialogSpline *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const auto spl = VAbstractTool::data.GeometricObject<VSpline>(m_id);
     dialogTool->SetSpline(*spl);
@@ -142,11 +142,11 @@ void VToolSpline::setDialog()
  * @param data container with variables.
  * @return the created tool
  */
-VToolSpline* VToolSpline::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
+VToolSpline* VToolSpline::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
                                  VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogSpline> dialogTool = dialog.objectCast<DialogSpline>();
+    const QPointer<DialogSpline> dialogTool = qobject_cast<DialogSpline *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolSplineInitData initData;
@@ -160,7 +160,7 @@ VToolSpline* VToolSpline::Create(QSharedPointer<DialogTool> dialog, VMainGraphic
 
     if (spl != nullptr)
     {
-        spl->m_dialog = dialogTool;
+        spl->m_dialog = dialog;
     }
     return spl;
 }
diff --git a/src/libs/vtools/tools/drawTools/toolcurve/vtoolspline.h b/src/libs/vtools/tools/drawTools/toolcurve/vtoolspline.h
index 387d459c7..fec692e71 100644
--- a/src/libs/vtools/tools/drawTools/toolcurve/vtoolspline.h
+++ b/src/libs/vtools/tools/drawTools/toolcurve/vtoolspline.h
@@ -76,7 +76,7 @@ class VToolSpline:public VAbstractSpline
 public:
     virtual ~VToolSpline() =default;
     virtual void setDialog() override;
-    static VToolSpline *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
+    static VToolSpline *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
                                VContainer *data);
     static VToolSpline *Create(VToolSplineInitData &initData, VSpline *spline);
     static VToolSpline *Create(VToolSplineInitData &initData);
diff --git a/src/libs/vtools/tools/drawTools/toolcurve/vtoolsplinepath.cpp b/src/libs/vtools/tools/drawTools/toolcurve/vtoolsplinepath.cpp
index bc9e3de6c..8a3a26425 100644
--- a/src/libs/vtools/tools/drawTools/toolcurve/vtoolsplinepath.cpp
+++ b/src/libs/vtools/tools/drawTools/toolcurve/vtoolsplinepath.cpp
@@ -138,7 +138,7 @@ VToolSplinePath::VToolSplinePath(const VToolSplinePathInitData &initData, QGraph
 void VToolSplinePath::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogSplinePath> dialogTool = m_dialog.objectCast<DialogSplinePath>();
+    const QPointer<DialogSplinePath> dialogTool = qobject_cast<DialogSplinePath *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VSplinePath> splPath = VAbstractTool::data.GeometricObject<VSplinePath>(m_id);
     dialogTool->SetPath(*splPath);
@@ -152,11 +152,11 @@ void VToolSplinePath::setDialog()
  * @param doc dom document container.
  * @param data container with variables.
  */
-VToolSplinePath* VToolSplinePath::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolSplinePath* VToolSplinePath::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                          VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogSplinePath> dialogTool = dialog.objectCast<DialogSplinePath>();
+    const QPointer<DialogSplinePath> dialogTool = qobject_cast<DialogSplinePath *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolSplinePathInitData initData;
@@ -175,7 +175,7 @@ VToolSplinePath* VToolSplinePath::Create(QSharedPointer<DialogTool> dialog, VMai
     VToolSplinePath* spl = Create(initData, path);
     if (spl != nullptr)
     {
-        spl->m_dialog = dialogTool;
+        spl->m_dialog = dialog;
     }
     return spl;
 }
@@ -466,7 +466,7 @@ void VToolSplinePath::SaveDialog(QDomElement &domElement, QList<quint32> &oldDep
                                  QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogSplinePath> dialogTool = m_dialog.objectCast<DialogSplinePath>();
+    const QPointer<DialogSplinePath> dialogTool = qobject_cast<DialogSplinePath *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     const auto oldSplPath = VAbstractTool::data.GeometricObject<VSplinePath>(m_id);
diff --git a/src/libs/vtools/tools/drawTools/toolcurve/vtoolsplinepath.h b/src/libs/vtools/tools/drawTools/toolcurve/vtoolsplinepath.h
index e8176c302..5830d6d15 100644
--- a/src/libs/vtools/tools/drawTools/toolcurve/vtoolsplinepath.h
+++ b/src/libs/vtools/tools/drawTools/toolcurve/vtoolsplinepath.h
@@ -75,7 +75,7 @@ class VToolSplinePath:public VAbstractSpline
 public:
     virtual ~VToolSplinePath() =default;
     virtual void setDialog() override;
-    static VToolSplinePath *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene,
+    static VToolSplinePath *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene,
                                    VAbstractPattern *doc, VContainer *data);
     static VToolSplinePath *Create(VToolSplinePathInitData &initData, VSplinePath *path);
     static VToolSplinePath *Create(VToolSplinePathInitData &initData);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/tooldoublepoint/vtooltruedarts.cpp b/src/libs/vtools/tools/drawTools/toolpoint/tooldoublepoint/vtooltruedarts.cpp
index ee6a1e930..c36e26646 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/tooldoublepoint/vtooltruedarts.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/tooldoublepoint/vtooltruedarts.cpp
@@ -94,7 +94,7 @@ void VToolTrueDarts::FindPoint(const QPointF &baseLineP1, const QPointF &baseLin
 void VToolTrueDarts::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogTrueDarts> dialogTool = m_dialog.objectCast<DialogTrueDarts>();
+    const QPointer<DialogTrueDarts> dialogTool = qobject_cast<DialogTrueDarts *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     const QSharedPointer<VPointF> p1 = VAbstractTool::data.GeometricObject<VPointF>(p1id);
@@ -110,11 +110,11 @@ void VToolTrueDarts::setDialog()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolTrueDarts *VToolTrueDarts::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolTrueDarts *VToolTrueDarts::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                        VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogTrueDarts> dialogTool = dialog.objectCast<DialogTrueDarts>();
+    const QPointer<DialogTrueDarts> dialogTool = qobject_cast<DialogTrueDarts *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolTrueDartsInitData initData;
@@ -134,7 +134,7 @@ VToolTrueDarts *VToolTrueDarts::Create(QSharedPointer<DialogTool> dialog, VMainG
     VToolTrueDarts *point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -265,7 +265,7 @@ void VToolTrueDarts::SaveDialog(QDomElement &domElement, QList<quint32> &oldDepe
                                 QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogTrueDarts> dialogTool = m_dialog.objectCast<DialogTrueDarts>();
+    const QPointer<DialogTrueDarts> dialogTool = qobject_cast<DialogTrueDarts *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, baseLineP1Id);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/tooldoublepoint/vtooltruedarts.h b/src/libs/vtools/tools/drawTools/toolpoint/tooldoublepoint/vtooltruedarts.h
index 56ef6dbd1..24a5e7f3d 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/tooldoublepoint/vtooltruedarts.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/tooldoublepoint/vtooltruedarts.h
@@ -89,7 +89,7 @@ public:
     static void    FindPoint(const QPointF &baseLineP1, const QPointF &baseLineP2, const QPointF &dartP1,
                              const QPointF &dartP2, const QPointF &dartP3, QPointF &p1, QPointF &p2);
     virtual void   setDialog() override;
-    static VToolTrueDarts* Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
+    static VToolTrueDarts* Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
                                   VContainer *data);
     static VToolTrueDarts* Create(VToolTrueDartsInitData initData);
     static const QString ToolType;
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutarc.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutarc.cpp
index 20dca6775..129f4539c 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutarc.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutarc.cpp
@@ -75,7 +75,7 @@ VToolCutArc::VToolCutArc(const VToolCutArcInitData &initData, QGraphicsItem * pa
 void VToolCutArc::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogCutArc> dialogTool = m_dialog.objectCast<DialogCutArc>();
+    const QPointer<DialogCutArc> dialogTool = qobject_cast<DialogCutArc *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> point = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetFormula(formula);
@@ -91,11 +91,11 @@ void VToolCutArc::setDialog()
  * @param doc dom document container.
  * @param data container with variables.
  */
-VToolCutArc* VToolCutArc::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
+VToolCutArc* VToolCutArc::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
                                  VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogCutArc> dialogTool = dialog.objectCast<DialogCutArc>();
+    const QPointer<DialogCutArc> dialogTool = qobject_cast<DialogCutArc *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolCutArcInitData initData;
@@ -111,7 +111,7 @@ VToolCutArc* VToolCutArc::Create(QSharedPointer<DialogTool> dialog, VMainGraphic
     VToolCutArc* point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -199,7 +199,7 @@ void VToolCutArc::SaveDialog(QDomElement &domElement, QList<quint32> &oldDepende
                              QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogCutArc> dialogTool = m_dialog.objectCast<DialogCutArc>();
+    const QPointer<DialogCutArc> dialogTool = qobject_cast<DialogCutArc *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, curveCutId);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutarc.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutarc.h
index 201675d07..61155d242 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutarc.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutarc.h
@@ -63,7 +63,7 @@ class VToolCutArc : public VToolCut
     Q_OBJECT
 public:
     virtual void setDialog() override;
-    static VToolCutArc*  Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
+    static VToolCutArc*  Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
                                 VContainer *data);
     static VToolCutArc*  Create(VToolCutArcInitData &initData);
     static const QString ToolType;
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutspline.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutspline.cpp
index d3992901a..f059e46a4 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutspline.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutspline.cpp
@@ -78,7 +78,7 @@ VToolCutSpline::VToolCutSpline(const VToolCutSplineInitData &initData, QGraphics
 void VToolCutSpline::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogCutSpline> dialogTool = m_dialog.objectCast<DialogCutSpline>();
+    QPointer<DialogCutSpline> dialogTool = qobject_cast<DialogCutSpline *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> point = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetFormula(formula);
@@ -94,11 +94,11 @@ void VToolCutSpline::setDialog()
  * @param doc dom document container.
  * @param data container with variables.
  */
-VToolCutSpline* VToolCutSpline::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolCutSpline* VToolCutSpline::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                        VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogCutSpline> dialogTool = dialog.objectCast<DialogCutSpline>();
+    const QPointer<DialogCutSpline> dialogTool = qobject_cast<DialogCutSpline *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolCutSplineInitData initData;
@@ -114,7 +114,7 @@ VToolCutSpline* VToolCutSpline::Create(QSharedPointer<DialogTool> dialog, VMainG
     VToolCutSpline* point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -198,7 +198,7 @@ void VToolCutSpline::SaveDialog(QDomElement &domElement, QList<quint32> &oldDepe
                                 QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogCutSpline> dialogTool = m_dialog.objectCast<DialogCutSpline>();
+    const QPointer<DialogCutSpline> dialogTool = qobject_cast<DialogCutSpline *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, curveCutId);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutspline.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutspline.h
index 3652b57f5..45f2ae806 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutspline.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutspline.h
@@ -63,7 +63,7 @@ class VToolCutSpline : public VToolCut
     Q_OBJECT
 public:
     virtual void setDialog() override;
-    static VToolCutSpline *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene, VAbstractPattern *doc,
+    static VToolCutSpline *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene, VAbstractPattern *doc,
                                   VContainer *data);
     static VToolCutSpline *Create(VToolCutSplineInitData &initData);
     static const QString ToolType;
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutsplinepath.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutsplinepath.cpp
index fa1aed7c3..f383c5098 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutsplinepath.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutsplinepath.cpp
@@ -81,7 +81,7 @@ VToolCutSplinePath::VToolCutSplinePath(const VToolCutSplinePathInitData &initDat
 void VToolCutSplinePath::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogCutSplinePath> dialogTool = m_dialog.objectCast<DialogCutSplinePath>();
+    const QPointer<DialogCutSplinePath> dialogTool = qobject_cast<DialogCutSplinePath *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> point = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetFormula(formula);
@@ -97,11 +97,11 @@ void VToolCutSplinePath::setDialog()
  * @param doc dom document container.
  * @param data container with variables.
  */
-VToolCutSplinePath* VToolCutSplinePath::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolCutSplinePath* VToolCutSplinePath::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                                VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogCutSplinePath> dialogTool = dialog.objectCast<DialogCutSplinePath>();
+    const QPointer<DialogCutSplinePath> dialogTool = qobject_cast<DialogCutSplinePath *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolCutSplinePathInitData initData;
@@ -117,7 +117,7 @@ VToolCutSplinePath* VToolCutSplinePath::Create(QSharedPointer<DialogTool> dialog
     VToolCutSplinePath* point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -289,7 +289,7 @@ void VToolCutSplinePath::SaveDialog(QDomElement &domElement, QList<quint32> &old
                                     QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogCutSplinePath> dialogTool = m_dialog.objectCast<DialogCutSplinePath>();
+    const QPointer<DialogCutSplinePath> dialogTool = qobject_cast<DialogCutSplinePath *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, curveCutId);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutsplinepath.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutsplinepath.h
index cf5d1e3a9..efd1ab6b0 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutsplinepath.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toolcut/vtoolcutsplinepath.h
@@ -65,7 +65,7 @@ class VToolCutSplinePath : public VToolCut
     Q_OBJECT
 public:
     virtual void setDialog() override;
-    static VToolCutSplinePath *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene,
+    static VToolCutSplinePath *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene,
                                       VAbstractPattern *doc, VContainer *data);
     static VToolCutSplinePath *Create(VToolCutSplinePathInitData &initData);
     static const QString ToolType;
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolalongline.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolalongline.cpp
index 9dce8e7c3..7872375e7 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolalongline.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolalongline.cpp
@@ -91,7 +91,7 @@ void VToolAlongLine::SaveDialog(QDomElement &domElement, QList<quint32> &oldDepe
                                 QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogAlongLine> dialogTool = m_dialog.objectCast<DialogAlongLine>();
+    const QPointer<DialogAlongLine> dialogTool = qobject_cast<DialogAlongLine *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, basePointId);
@@ -198,7 +198,7 @@ void VToolAlongLine::ShowContextMenu(QGraphicsSceneContextMenuEvent *event, quin
 void VToolAlongLine::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogAlongLine> dialogTool = m_dialog.objectCast<DialogAlongLine>();
+    const QPointer<DialogAlongLine> dialogTool = qobject_cast<DialogAlongLine *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetTypeLine(m_lineType);
@@ -217,11 +217,11 @@ void VToolAlongLine::setDialog()
  * @param doc dom document container.
  * @param data container with variables.
  */
-VToolAlongLine* VToolAlongLine::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolAlongLine* VToolAlongLine::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                        VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogAlongLine> dialogTool = dialog.objectCast<DialogAlongLine>();
+    const QPointer<DialogAlongLine> dialogTool = qobject_cast<DialogAlongLine *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolAlongLineInitData initData;
@@ -240,7 +240,7 @@ VToolAlongLine* VToolAlongLine::Create(QSharedPointer<DialogTool> dialog, VMainG
     VToolAlongLine *point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolalongline.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolalongline.h
index 7545348c0..cc47ecff5 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolalongline.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolalongline.h
@@ -65,7 +65,7 @@ class VToolAlongLine : public VToolLinePoint
     Q_OBJECT
 public:
     virtual void setDialog() override;
-    static VToolAlongLine* Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene,
+    static VToolAlongLine* Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene,
                                   VAbstractPattern *doc, VContainer *data);
     static VToolAlongLine* Create(VToolAlongLineInitData &initData);
     static const QString ToolType;
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolbisector.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolbisector.cpp
index 6eeabdca6..82658683b 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolbisector.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolbisector.cpp
@@ -112,7 +112,7 @@ QPointF VToolBisector::FindPoint(const QPointF &firstPoint, const QPointF &secon
 void VToolBisector::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogBisector> dialogTool = m_dialog.objectCast<DialogBisector>();
+    const QPointer<DialogBisector> dialogTool = qobject_cast<DialogBisector *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetTypeLine(m_lineType);
@@ -132,11 +132,11 @@ void VToolBisector::setDialog()
  * @param doc dom document container.
  * @param data container with variables.
  */
-VToolBisector* VToolBisector::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolBisector* VToolBisector::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                      VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogBisector> dialogTool = dialog.objectCast<DialogBisector>();
+    const QPointer<DialogBisector> dialogTool = qobject_cast<DialogBisector *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolBisectorInitData initData;
@@ -156,7 +156,7 @@ VToolBisector* VToolBisector::Create(QSharedPointer<DialogTool> dialog, VMainGra
     VToolBisector *point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -244,7 +244,7 @@ void VToolBisector::SaveDialog(QDomElement &domElement, QList<quint32> &oldDepen
                                QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogBisector> dialogTool = m_dialog.objectCast<DialogBisector>();
+    QPointer<DialogBisector> dialogTool = qobject_cast<DialogBisector *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, firstPointId);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolbisector.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolbisector.h
index 5347f180d..0370faaad 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolbisector.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolbisector.h
@@ -71,7 +71,7 @@ public:
     static QPointF FindPoint(const QPointF &firstPoint, const QPointF &secondPoint, const QPointF &thirdPoint,
                              const qreal& length);
     virtual void   setDialog() override;
-    static VToolBisector* Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene, VAbstractPattern *doc,
+    static VToolBisector* Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene, VAbstractPattern *doc,
                                  VContainer *data);
     static VToolBisector* Create(VToolBisectorInitData &initData);
     static const QString ToolType;
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolcurveintersectaxis.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolcurveintersectaxis.cpp
index e40c31441..3583f0a99 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolcurveintersectaxis.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolcurveintersectaxis.cpp
@@ -86,7 +86,7 @@ void VToolCurveIntersectAxis::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
     m_dialog->setModal(true);
-    QSharedPointer<DialogCurveIntersectAxis> dialogTool = m_dialog.objectCast<DialogCurveIntersectAxis>();
+    const QPointer<DialogCurveIntersectAxis> dialogTool = qobject_cast<DialogCurveIntersectAxis *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetTypeLine(m_lineType);
@@ -98,12 +98,12 @@ void VToolCurveIntersectAxis::setDialog()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolCurveIntersectAxis *VToolCurveIntersectAxis::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolCurveIntersectAxis *VToolCurveIntersectAxis::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                                          VAbstractPattern *doc,
                                                          VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogCurveIntersectAxis> dialogTool = dialog.objectCast<DialogCurveIntersectAxis>();
+    const QPointer<DialogCurveIntersectAxis> dialogTool = qobject_cast<DialogCurveIntersectAxis *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolCurveIntersectAxisInitData initData;
@@ -122,7 +122,7 @@ VToolCurveIntersectAxis *VToolCurveIntersectAxis::Create(QSharedPointer<DialogTo
     VToolCurveIntersectAxis *point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -297,7 +297,7 @@ void VToolCurveIntersectAxis::SaveDialog(QDomElement &domElement, QList<quint32>
                                          QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogCurveIntersectAxis> dialogTool = m_dialog.objectCast<DialogCurveIntersectAxis>();
+    const QPointer<DialogCurveIntersectAxis> dialogTool = qobject_cast<DialogCurveIntersectAxis *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, basePointId);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolcurveintersectaxis.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolcurveintersectaxis.h
index e526355ea..60a914501 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolcurveintersectaxis.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolcurveintersectaxis.h
@@ -67,7 +67,7 @@ public:
     virtual ~VToolCurveIntersectAxis() Q_DECL_EQ_DEFAULT;
     virtual void setDialog() override;
 
-    static VToolCurveIntersectAxis *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+    static VToolCurveIntersectAxis *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                            VAbstractPattern *doc, VContainer *data);
     static VToolCurveIntersectAxis *Create(VToolCurveIntersectAxisInitData &initData);
 
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolendline.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolendline.cpp
index 0a9abd5e9..f423e9347 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolendline.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolendline.cpp
@@ -78,7 +78,7 @@ void VToolEndLine::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
     m_dialog->setModal(true);
-    QSharedPointer<DialogEndLine> dialogTool = m_dialog.objectCast<DialogEndLine>();
+    QPointer<DialogEndLine> dialogTool = qobject_cast<DialogEndLine *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetTypeLine(m_lineType);
@@ -98,11 +98,11 @@ void VToolEndLine::setDialog()
  * @param data container with variables.
  * @return the created tool
  */
-VToolEndLine* VToolEndLine::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
+VToolEndLine* VToolEndLine::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
                                    VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogEndLine> dialogTool = dialog.objectCast<DialogEndLine>();
+    const QPointer<DialogEndLine> dialogTool = qobject_cast<DialogEndLine *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolEndLineInitData initData;
@@ -121,7 +121,7 @@ VToolEndLine* VToolEndLine::Create(QSharedPointer<DialogTool> dialog, VMainGraph
     VToolEndLine *point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -178,7 +178,7 @@ void VToolEndLine::SaveDialog(QDomElement &domElement, QList<quint32> &oldDepend
                               QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogEndLine> dialogTool = m_dialog.objectCast<DialogEndLine>();
+    const QPointer<DialogEndLine> dialogTool = qobject_cast<DialogEndLine *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, basePointId);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolendline.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolendline.h
index bca6c651d..b5fab6322 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolendline.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolendline.h
@@ -67,7 +67,7 @@ class VToolEndLine : public VToolLinePoint
 public:
     virtual ~VToolEndLine() Q_DECL_EQ_DEFAULT;
     virtual void setDialog() override;
-    static VToolEndLine *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene, VAbstractPattern *doc,
+    static VToolEndLine *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene, VAbstractPattern *doc,
                                 VContainer *data);
     static VToolEndLine *Create(VToolEndLineInitData &initData);
     static const QString ToolType;
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolheight.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolheight.cpp
index 505f6fe79..f40db8918 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolheight.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolheight.cpp
@@ -74,7 +74,7 @@ VToolHeight::VToolHeight(const VToolHeightInitData &initData, QGraphicsItem * pa
 void VToolHeight::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogHeight> dialogTool = m_dialog.objectCast<DialogHeight>();
+    const QPointer<DialogHeight> dialogTool = qobject_cast<DialogHeight *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetTypeLine(m_lineType);
@@ -94,11 +94,11 @@ void VToolHeight::setDialog()
  * @param data container with variables.
  * @return the created tool
  */
-VToolHeight* VToolHeight::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
+VToolHeight* VToolHeight::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
                                  VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogHeight> dialogTool = dialog.objectCast<DialogHeight>();
+    const QPointer<DialogHeight> dialogTool = qobject_cast<DialogHeight *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolHeightInitData initData;
@@ -117,7 +117,7 @@ VToolHeight* VToolHeight::Create(QSharedPointer<DialogTool> dialog, VMainGraphic
     VToolHeight *point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -205,7 +205,7 @@ void VToolHeight::SaveDialog(QDomElement &domElement, QList<quint32> &oldDepende
                              QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogHeight> dialogTool = m_dialog.objectCast<DialogHeight>();
+    const QPointer<DialogHeight> dialogTool = qobject_cast<DialogHeight *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, basePointId);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolheight.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolheight.h
index c8c66c9ca..03c27c8c4 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolheight.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolheight.h
@@ -67,7 +67,7 @@ class VToolHeight: public VToolLinePoint
     Q_OBJECT
 public:
     virtual void   setDialog() override;
-    static VToolHeight *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene, VAbstractPattern *doc,
+    static VToolHeight *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene, VAbstractPattern *doc,
                                VContainer *data);
     static VToolHeight *Create(VToolHeightInitData initData);
     static QPointF FindPoint(const QLineF &line, const QPointF &point);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoollineintersectaxis.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoollineintersectaxis.cpp
index bda7524e4..d83ddb585 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoollineintersectaxis.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoollineintersectaxis.cpp
@@ -72,7 +72,7 @@ void VToolLineIntersectAxis::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
     m_dialog->setModal(true);
-    QSharedPointer<DialogLineIntersectAxis> dialogTool = m_dialog.objectCast<DialogLineIntersectAxis>();
+    const QPointer<DialogLineIntersectAxis> dialogTool = qobject_cast<DialogLineIntersectAxis *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetTypeLine(m_lineType);
@@ -85,11 +85,11 @@ void VToolLineIntersectAxis::setDialog()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolLineIntersectAxis *VToolLineIntersectAxis::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolLineIntersectAxis *VToolLineIntersectAxis::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                                        VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogLineIntersectAxis> dialogTool = dialog.objectCast<DialogLineIntersectAxis>();
+    const QPointer<DialogLineIntersectAxis> dialogTool = qobject_cast<DialogLineIntersectAxis *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolLineIntersectAxisInitData initData;
@@ -109,7 +109,7 @@ VToolLineIntersectAxis *VToolLineIntersectAxis::Create(QSharedPointer<DialogTool
     VToolLineIntersectAxis *point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -259,7 +259,7 @@ void VToolLineIntersectAxis::SaveDialog(QDomElement &domElement, QList<quint32>
                                         QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogLineIntersectAxis> dialogTool = m_dialog.objectCast<DialogLineIntersectAxis>();
+    const QPointer<DialogLineIntersectAxis> dialogTool = qobject_cast<DialogLineIntersectAxis *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, basePointId);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoollineintersectaxis.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoollineintersectaxis.h
index e551ada26..954698cc8 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoollineintersectaxis.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoollineintersectaxis.h
@@ -69,7 +69,7 @@ public:
     virtual ~VToolLineIntersectAxis() Q_DECL_EQ_DEFAULT;
     virtual void setDialog() override;
 
-    static VToolLineIntersectAxis *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+    static VToolLineIntersectAxis *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                           VAbstractPattern *doc, VContainer *data);
     static VToolLineIntersectAxis *Create(VToolLineIntersectAxisInitData &initData);
 
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolnormal.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolnormal.cpp
index f3c757a5d..7164f5d79 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolnormal.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolnormal.cpp
@@ -78,7 +78,7 @@ VToolNormal::VToolNormal(const VToolNormalInitData &initData, QGraphicsItem *par
 void VToolNormal::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogNormal> dialogTool = m_dialog.objectCast<DialogNormal>();
+    const QPointer<DialogNormal> dialogTool = qobject_cast<DialogNormal *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetTypeLine(m_lineType);
@@ -97,11 +97,11 @@ void VToolNormal::setDialog()
  * @param doc dom document container.
  * @param data container with variables.
  */
-VToolNormal* VToolNormal::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
+VToolNormal* VToolNormal::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
                                  VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogNormal> dialogTool = dialog.objectCast<DialogNormal>();
+    const QPointer<DialogNormal> dialogTool = qobject_cast<DialogNormal *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolNormalInitData initData;
@@ -121,7 +121,7 @@ VToolNormal* VToolNormal::Create(QSharedPointer<DialogTool> dialog, VMainGraphic
     VToolNormal *point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -217,7 +217,7 @@ void VToolNormal::SaveDialog(QDomElement &domElement, QList<quint32> &oldDepende
                              QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogNormal> dialogTool = m_dialog.objectCast<DialogNormal>();
+    const QPointer<DialogNormal> dialogTool = qobject_cast<DialogNormal *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, basePointId);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolnormal.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolnormal.h
index 6a0dd533b..e2e68532a 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolnormal.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolnormal.h
@@ -68,7 +68,7 @@ class VToolNormal : public VToolLinePoint
     Q_OBJECT
 public:
     virtual void   setDialog() override;
-    static VToolNormal* Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene, VAbstractPattern *doc,
+    static VToolNormal* Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene, VAbstractPattern *doc,
                                VContainer *data);
     static VToolNormal* Create(VToolNormalInitData initData);
     static QPointF FindPoint(const QPointF &firstPoint, const QPointF &secondPoint, const qreal &length,
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolshoulderpoint.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolshoulderpoint.cpp
index 884b3a0c7..942cc6185 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolshoulderpoint.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolshoulderpoint.cpp
@@ -80,7 +80,7 @@ VToolShoulderPoint::VToolShoulderPoint(const VToolShoulderPointInitData &initDat
 void VToolShoulderPoint::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogShoulderPoint> dialogTool = m_dialog.objectCast<DialogShoulderPoint>();
+    const QPointer<DialogShoulderPoint> dialogTool = qobject_cast<DialogShoulderPoint *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetTypeLine(m_lineType);
@@ -146,11 +146,11 @@ QPointF VToolShoulderPoint::FindPoint(const QPointF &p1Line, const QPointF &p2Li
  * @param data container with variables.
  * @return the created tool
  */
-VToolShoulderPoint* VToolShoulderPoint::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolShoulderPoint* VToolShoulderPoint::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                                VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogShoulderPoint> dialogTool = dialog.objectCast<DialogShoulderPoint>();
+    const QPointer<DialogShoulderPoint> dialogTool = qobject_cast<DialogShoulderPoint *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolShoulderPointInitData initData;
@@ -170,7 +170,7 @@ VToolShoulderPoint* VToolShoulderPoint::Create(QSharedPointer<DialogTool> dialog
     VToolShoulderPoint * point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -262,7 +262,7 @@ void VToolShoulderPoint::SaveDialog(QDomElement &domElement, QList<quint32> &old
                                     QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogShoulderPoint> dialogTool = m_dialog.objectCast<DialogShoulderPoint>();
+    const QPointer<DialogShoulderPoint> dialogTool = qobject_cast<DialogShoulderPoint *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, basePointId);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolshoulderpoint.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolshoulderpoint.h
index f122ee8bc..20a9230da 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolshoulderpoint.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolshoulderpoint.h
@@ -71,7 +71,7 @@ public:
     virtual void   setDialog() override;
     static QPointF FindPoint(const QPointF &p1Line, const QPointF &p2Line, const QPointF &pShoulder,
                              const qreal &length);
-    static VToolShoulderPoint* Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene,
+    static VToolShoulderPoint* Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene,
                                       VAbstractPattern *doc, VContainer *data);
     static VToolShoulderPoint* Create(VToolShoulderPointInitData &initData);
     static const QString ToolType;
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolbasepoint.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolbasepoint.cpp
index df0bf3674..813ae62de 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolbasepoint.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolbasepoint.cpp
@@ -93,7 +93,7 @@ VToolBasePoint::VToolBasePoint (const VToolBasePointInitData &initData, QGraphic
 void VToolBasePoint::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogSinglePoint> dialogTool = m_dialog.objectCast<DialogSinglePoint>();
+    const QPointer<DialogSinglePoint> dialogTool = qobject_cast<DialogSinglePoint *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetData(p->name(), static_cast<QPointF>(*p));
@@ -291,7 +291,7 @@ void VToolBasePoint::SaveDialog(QDomElement &domElement, QList<quint32> &oldDepe
                                 QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogSinglePoint> dialogTool = m_dialog.objectCast<DialogSinglePoint>();
+    const QPointer<DialogSinglePoint> dialogTool = qobject_cast<DialogSinglePoint *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     Q_UNUSED(oldDependencies)
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoollineintersect.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoollineintersect.cpp
index 47250b7ab..3723baac8 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoollineintersect.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoollineintersect.cpp
@@ -78,7 +78,7 @@ VToolLineIntersect::VToolLineIntersect(const VToolLineIntersectInitData &initDat
 void VToolLineIntersect::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogLineIntersect> dialogTool = m_dialog.objectCast<DialogLineIntersect>();
+    const QPointer<DialogLineIntersect> dialogTool = qobject_cast<DialogLineIntersect *>(m_dialog);
     SCASSERT(not dialogTool.isNull())     
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetP1Line1(p1Line1);
@@ -97,11 +97,11 @@ void VToolLineIntersect::setDialog()
  * @param data container with variables.
  * @return the created tool
  */
-VToolLineIntersect* VToolLineIntersect::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolLineIntersect* VToolLineIntersect::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                                VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogLineIntersect> dialogTool = dialog.objectCast<DialogLineIntersect>();
+    const QPointer<DialogLineIntersect> dialogTool = qobject_cast<DialogLineIntersect *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolLineIntersectInitData initData;
@@ -119,7 +119,7 @@ VToolLineIntersect* VToolLineIntersect::Create(QSharedPointer<DialogTool> dialog
     VToolLineIntersect* point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -236,7 +236,7 @@ void VToolLineIntersect::SaveDialog(QDomElement &domElement, QList<quint32> &old
                                     QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogLineIntersect> dialogTool = m_dialog.objectCast<DialogLineIntersect>();
+    const QPointer<DialogLineIntersect> dialogTool = qobject_cast<DialogLineIntersect *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, p1Line1);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoollineintersect.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoollineintersect.h
index deab65ea0..29a3a76c8 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoollineintersect.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoollineintersect.h
@@ -67,7 +67,7 @@ class VToolLineIntersect:public VToolSinglePoint
     Q_OBJECT
 public:
     virtual void setDialog() override;
-    static VToolLineIntersect *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+    static VToolLineIntersect *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                       VAbstractPattern *doc, VContainer *data);
     static VToolLineIntersect *Create(VToolLineIntersectInitData initData);
     static const QString ToolType;
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointfromarcandtangent.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointfromarcandtangent.cpp
index 1cd9c3bf8..07f90ad12 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointfromarcandtangent.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointfromarcandtangent.cpp
@@ -70,7 +70,7 @@ VToolPointFromArcAndTangent::VToolPointFromArcAndTangent(const VToolPointFromArc
 void VToolPointFromArcAndTangent::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogPointFromArcAndTangent> dialogTool = m_dialog.objectCast<DialogPointFromArcAndTangent>();
+    const QPointer<DialogPointFromArcAndTangent> dialogTool = qobject_cast<DialogPointFromArcAndTangent *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetArcId(arcId);
@@ -80,12 +80,12 @@ void VToolPointFromArcAndTangent::setDialog()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolPointFromArcAndTangent *VToolPointFromArcAndTangent::Create(QSharedPointer<DialogTool> dialog,
+VToolPointFromArcAndTangent *VToolPointFromArcAndTangent::Create(const QPointer<DialogTool> &dialog,
                                                                  VMainGraphicsScene *scene,
                                                                  VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogPointFromArcAndTangent> dialogTool = dialog.objectCast<DialogPointFromArcAndTangent>();
+    const QPointer<DialogPointFromArcAndTangent> dialogTool = qobject_cast<DialogPointFromArcAndTangent *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolPointFromArcAndTangentInitData initData;
@@ -102,7 +102,7 @@ VToolPointFromArcAndTangent *VToolPointFromArcAndTangent::Create(QSharedPointer<
     VToolPointFromArcAndTangent *point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -284,7 +284,7 @@ void VToolPointFromArcAndTangent::SaveDialog(QDomElement &domElement, QList<quin
                                              QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogPointFromArcAndTangent> dialogTool = m_dialog.objectCast<DialogPointFromArcAndTangent>();
+    const QPointer<DialogPointFromArcAndTangent> dialogTool = qobject_cast<DialogPointFromArcAndTangent *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, arcId);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointfromarcandtangent.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointfromarcandtangent.h
index dc5f79c88..10ba8aa59 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointfromarcandtangent.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointfromarcandtangent.h
@@ -63,7 +63,7 @@ class VToolPointFromArcAndTangent : public VToolSinglePoint
     Q_OBJECT
 public:
     virtual void setDialog() override;
-    static VToolPointFromArcAndTangent *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene,
+    static VToolPointFromArcAndTangent *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene,
                                                VAbstractPattern *doc, VContainer *data);
     static VToolPointFromArcAndTangent *Create(VToolPointFromArcAndTangentInitData initData);
     static bool FindPoint(const QPointF &p, const VArc *arc, const CrossCirclesPoint pType, QPointF *intersectionPoint);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointfromcircleandtangent.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointfromcircleandtangent.cpp
index fc53b3292..3e1c811b8 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointfromcircleandtangent.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointfromcircleandtangent.cpp
@@ -72,7 +72,8 @@ VToolPointFromCircleAndTangent::VToolPointFromCircleAndTangent(const VToolPointF
 void VToolPointFromCircleAndTangent::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogPointFromCircleAndTangent> dialogTool = m_dialog.objectCast<DialogPointFromCircleAndTangent>();
+    const QPointer<DialogPointFromCircleAndTangent> dialogTool =
+            qobject_cast<DialogPointFromCircleAndTangent *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetCircleCenterId(circleCenterId);
@@ -83,12 +84,13 @@ void VToolPointFromCircleAndTangent::setDialog()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolPointFromCircleAndTangent *VToolPointFromCircleAndTangent::Create(QSharedPointer<DialogTool> dialog,
+VToolPointFromCircleAndTangent *VToolPointFromCircleAndTangent::Create(const QPointer<DialogTool> &dialog,
                                                                        VMainGraphicsScene *scene,
                                                                        VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogPointFromCircleAndTangent> dialogTool = dialog.objectCast<DialogPointFromCircleAndTangent>();
+    const QPointer<DialogPointFromCircleAndTangent> dialogTool =
+            qobject_cast<DialogPointFromCircleAndTangent *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolPointFromCircleAndTangentInitData initData;
@@ -106,7 +108,7 @@ VToolPointFromCircleAndTangent *VToolPointFromCircleAndTangent::Create(QSharedPo
     VToolPointFromCircleAndTangent *point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -272,7 +274,8 @@ void VToolPointFromCircleAndTangent::SaveDialog(QDomElement &domElement, QList<q
                                                 QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogPointFromCircleAndTangent> dialogTool = m_dialog.objectCast<DialogPointFromCircleAndTangent>();
+    const QPointer<DialogPointFromCircleAndTangent> dialogTool =
+            qobject_cast<DialogPointFromCircleAndTangent *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, circleCenterId);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointfromcircleandtangent.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointfromcircleandtangent.h
index 72253691e..ffe19ab95 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointfromcircleandtangent.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointfromcircleandtangent.h
@@ -66,7 +66,7 @@ class VToolPointFromCircleAndTangent : public VToolSinglePoint
     Q_OBJECT
 public:
     virtual void setDialog() override;
-    static VToolPointFromCircleAndTangent *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene,
+    static VToolPointFromCircleAndTangent *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene,
                                                   VAbstractPattern *doc, VContainer *data);
     static VToolPointFromCircleAndTangent *Create(VToolPointFromCircleAndTangentInitData &initData);
     static bool FindPoint(const QPointF &p, const QPointF &center, qreal radius, const CrossCirclesPoint crossPoint,
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofcontact.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofcontact.cpp
index 098b2edef..77a2c8905 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofcontact.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofcontact.cpp
@@ -84,7 +84,7 @@ VToolPointOfContact::VToolPointOfContact(const VToolPointOfContactInitData &init
 void VToolPointOfContact::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogPointOfContact> dialogTool = m_dialog.objectCast<DialogPointOfContact>();
+    const QPointer<DialogPointOfContact> dialogTool = qobject_cast<DialogPointOfContact *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->setRadius(arcRadius);
@@ -166,11 +166,11 @@ bool VToolPointOfContact::FindPoint(qreal radius, const QPointF &center, const Q
  * @param doc dom document container.
  * @param data container with variables.
  */
-VToolPointOfContact* VToolPointOfContact::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolPointOfContact* VToolPointOfContact::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                                  VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogPointOfContact> dialogTool = dialog.objectCast<DialogPointOfContact>();
+    const QPointer<DialogPointOfContact> dialogTool = qobject_cast<DialogPointOfContact *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolPointOfContactInitData initData;
@@ -188,7 +188,7 @@ VToolPointOfContact* VToolPointOfContact::Create(QSharedPointer<DialogTool> dial
     VToolPointOfContact *point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -297,7 +297,7 @@ void VToolPointOfContact::SaveDialog(QDomElement &domElement, QList<quint32> &ol
                                      QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogPointOfContact> dialogTool = m_dialog.objectCast<DialogPointOfContact>();
+    const QPointer<DialogPointOfContact> dialogTool = qobject_cast<DialogPointOfContact *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, center);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofcontact.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofcontact.h
index a3d77f48a..3fc0ee216 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofcontact.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofcontact.h
@@ -71,7 +71,7 @@ public:
     virtual void   setDialog() override;
     static bool FindPoint(qreal radius, const QPointF &center, const QPointF &firstPoint,
                           const QPointF &secondPoint, QPointF *intersectionPoint);
-    static VToolPointOfContact* Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene,
+    static VToolPointOfContact* Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene,
                                        VAbstractPattern *doc, VContainer *data);
     static VToolPointOfContact* Create(VToolPointOfContactInitData &initData);
     static const QString ToolType;
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersection.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersection.cpp
index 4e3d619f6..b681d0f2d 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersection.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersection.cpp
@@ -75,7 +75,7 @@ VToolPointOfIntersection::VToolPointOfIntersection(const VToolPointOfIntersectio
 void VToolPointOfIntersection::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogPointOfIntersection> dialogTool = m_dialog.objectCast<DialogPointOfIntersection>();
+    const QPointer<DialogPointOfIntersection> dialogTool = qobject_cast<DialogPointOfIntersection *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetFirstPointId(firstPointId);
@@ -92,11 +92,12 @@ void VToolPointOfIntersection::setDialog()
  * @param data container with variables.
  * @return the created tool
  */
-VToolPointOfIntersection *VToolPointOfIntersection::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
-                                                           VAbstractPattern *doc, VContainer *data)
+VToolPointOfIntersection *VToolPointOfIntersection::Create(const QPointer<DialogTool> &dialog,
+                                                           VMainGraphicsScene *scene, VAbstractPattern *doc,
+                                                           VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogPointOfIntersection> dialogTool = dialog.objectCast<DialogPointOfIntersection>();
+    const QPointer<DialogPointOfIntersection> dialogTool = qobject_cast<DialogPointOfIntersection *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolPointOfIntersectionInitData initData;
@@ -112,7 +113,7 @@ VToolPointOfIntersection *VToolPointOfIntersection::Create(QSharedPointer<Dialog
     VToolPointOfIntersection *point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -193,7 +194,7 @@ void VToolPointOfIntersection::SaveDialog(QDomElement &domElement, QList<quint32
                                           QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogPointOfIntersection> dialogTool = m_dialog.objectCast<DialogPointOfIntersection>();
+    const QPointer<DialogPointOfIntersection> dialogTool = qobject_cast<DialogPointOfIntersection *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, firstPointId);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersection.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersection.h
index 54e9c247f..1ffbe9bfd 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersection.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersection.h
@@ -63,7 +63,7 @@ class VToolPointOfIntersection : public VToolSinglePoint
     Q_OBJECT
 public:
     virtual void setDialog() override;
-    static VToolPointOfIntersection *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene,
+    static VToolPointOfIntersection *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene,
                                             VAbstractPattern *doc, VContainer *data);
     static VToolPointOfIntersection *Create(VToolPointOfIntersectionInitData initData);
     static const QString ToolType;
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectionarcs.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectionarcs.cpp
index 49cd5db84..a4bfa2dd9 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectionarcs.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectionarcs.cpp
@@ -70,7 +70,7 @@ VToolPointOfIntersectionArcs::VToolPointOfIntersectionArcs(const VToolPointOfInt
 void VToolPointOfIntersectionArcs::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogPointOfIntersectionArcs> dialogTool = m_dialog.objectCast<DialogPointOfIntersectionArcs>();
+    const QPointer<DialogPointOfIntersectionArcs> dialogTool = qobject_cast<DialogPointOfIntersectionArcs *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetFirstArcId(firstArcId);
@@ -80,12 +80,12 @@ void VToolPointOfIntersectionArcs::setDialog()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolPointOfIntersectionArcs *VToolPointOfIntersectionArcs::Create(QSharedPointer<DialogTool> dialog,
+VToolPointOfIntersectionArcs *VToolPointOfIntersectionArcs::Create(const QPointer<DialogTool> &dialog,
                                                                    VMainGraphicsScene *scene, VAbstractPattern *doc,
                                                                    VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogPointOfIntersectionArcs> dialogTool = dialog.objectCast<DialogPointOfIntersectionArcs>();
+    const QPointer<DialogPointOfIntersectionArcs> dialogTool = qobject_cast<DialogPointOfIntersectionArcs *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolPointOfIntersectionArcsInitData initData;
@@ -102,7 +102,7 @@ VToolPointOfIntersectionArcs *VToolPointOfIntersectionArcs::Create(QSharedPointe
     VToolPointOfIntersectionArcs *point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -306,7 +306,7 @@ void VToolPointOfIntersectionArcs::SaveDialog(QDomElement &domElement, QList<qui
                                               QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogPointOfIntersectionArcs> dialogTool = m_dialog.objectCast<DialogPointOfIntersectionArcs>();
+    const QPointer<DialogPointOfIntersectionArcs> dialogTool = qobject_cast<DialogPointOfIntersectionArcs *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, firstArcId);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectionarcs.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectionarcs.h
index 9e1630c72..8e143ba9a 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectionarcs.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectionarcs.h
@@ -64,7 +64,7 @@ class VToolPointOfIntersectionArcs : public VToolSinglePoint
 
 public:
     virtual void setDialog() override;
-    static VToolPointOfIntersectionArcs *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene,
+    static VToolPointOfIntersectionArcs *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene,
                                                 VAbstractPattern *doc, VContainer *data);
     static VToolPointOfIntersectionArcs *Create(VToolPointOfIntersectionArcsInitData initData);
     static bool FindPoint(const VArc *arc1, const VArc *arc2, const CrossCirclesPoint pType,
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectioncircles.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectioncircles.cpp
index e6bdd678e..3387a4b58 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectioncircles.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectioncircles.cpp
@@ -73,8 +73,8 @@ VToolPointOfIntersectionCircles::VToolPointOfIntersectionCircles(
 void VToolPointOfIntersectionCircles::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogPointOfIntersectionCircles> dialogTool =
-            m_dialog.objectCast<DialogPointOfIntersectionCircles>();
+    const QPointer<DialogPointOfIntersectionCircles> dialogTool =
+            qobject_cast<DialogPointOfIntersectionCircles *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetFirstCircleCenterId(firstCircleCenterId);
@@ -86,12 +86,13 @@ void VToolPointOfIntersectionCircles::setDialog()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolPointOfIntersectionCircles *VToolPointOfIntersectionCircles::Create(QSharedPointer<DialogTool> dialog,
+VToolPointOfIntersectionCircles *VToolPointOfIntersectionCircles::Create(const QPointer<DialogTool> &dialog,
                                                                          VMainGraphicsScene *scene,
                                                                          VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogPointOfIntersectionCircles> dialogTool = dialog.objectCast<DialogPointOfIntersectionCircles>();
+    const QPointer<DialogPointOfIntersectionCircles> dialogTool =
+            qobject_cast<DialogPointOfIntersectionCircles *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolPointOfIntersectionCirclesInitData initData;
@@ -110,7 +111,7 @@ VToolPointOfIntersectionCircles *VToolPointOfIntersectionCircles::Create(QShared
     VToolPointOfIntersectionCircles *point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -311,8 +312,8 @@ void VToolPointOfIntersectionCircles::SaveDialog(QDomElement &domElement, QList<
                                                  QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogPointOfIntersectionCircles> dialogTool =
-            m_dialog.objectCast<DialogPointOfIntersectionCircles>();
+    const QPointer<DialogPointOfIntersectionCircles> dialogTool =
+            qobject_cast<DialogPointOfIntersectionCircles *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, firstCircleCenterId);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectioncircles.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectioncircles.h
index c14e8b11e..c431c6e0b 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectioncircles.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectioncircles.h
@@ -68,7 +68,7 @@ class VToolPointOfIntersectionCircles : public VToolSinglePoint
     Q_OBJECT
 public:
     virtual void setDialog() override;
-    static VToolPointOfIntersectionCircles *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene,
+    static VToolPointOfIntersectionCircles *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene,
                                                    VAbstractPattern *doc, VContainer *data);
     static VToolPointOfIntersectionCircles *Create(VToolPointOfIntersectionCirclesInitData &initData);
     static bool FindPoint(const QPointF &c1Point, const QPointF &c2Point, qreal c1Radius, qreal c2Radius,
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectioncurves.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectioncurves.cpp
index ca2b6ed03..76d04bb93 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectioncurves.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectioncurves.cpp
@@ -82,12 +82,13 @@ void VToolPointOfIntersectionCurves::setDialog()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolPointOfIntersectionCurves *VToolPointOfIntersectionCurves::Create(QSharedPointer<DialogTool> dialog,
+VToolPointOfIntersectionCurves *VToolPointOfIntersectionCurves::Create(const QPointer<DialogTool> &dialog,
                                                                        VMainGraphicsScene *scene,
                                                                        VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogPointOfIntersectionCurves> dialogTool = dialog.objectCast<DialogPointOfIntersectionCurves>();
+    const QPointer<DialogPointOfIntersectionCurves> dialogTool =
+            qobject_cast<DialogPointOfIntersectionCurves *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolPointOfIntersectionCurvesInitData initData;
@@ -105,7 +106,7 @@ VToolPointOfIntersectionCurves *VToolPointOfIntersectionCurves::Create(QSharedPo
     VToolPointOfIntersectionCurves *point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectioncurves.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectioncurves.h
index 8ed555fea..14e6395d9 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectioncurves.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtoolpointofintersectioncurves.h
@@ -66,7 +66,7 @@ class VToolPointOfIntersectionCurves : public VToolSinglePoint
     Q_OBJECT
 public:
     virtual void setDialog() override;
-    static VToolPointOfIntersectionCurves *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene,
+    static VToolPointOfIntersectionCurves *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene,
                                                   VAbstractPattern *doc, VContainer *data);
     static VToolPointOfIntersectionCurves *Create(VToolPointOfIntersectionCurvesInitData initData);
     static bool FindPoint(const QVector<QPointF> &curve1Points, const QVector<QPointF> &curve2Points,
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtooltriangle.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtooltriangle.cpp
index d40accc2c..f5bca3d92 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtooltriangle.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtooltriangle.cpp
@@ -79,7 +79,7 @@ VToolTriangle::VToolTriangle(const VToolTriangleInitData &initData, QGraphicsIte
 void VToolTriangle::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogTriangle> dialogTool = m_dialog.objectCast<DialogTriangle>();
+    const QPointer<DialogTriangle> dialogTool = qobject_cast<DialogTriangle *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     const QSharedPointer<VPointF> p = VAbstractTool::data.GeometricObject<VPointF>(m_id);
     dialogTool->SetAxisP1Id(axisP1Id);
@@ -98,11 +98,11 @@ void VToolTriangle::setDialog()
  * @param data container with variables.
  * @return the created tool
  */
-VToolTriangle* VToolTriangle::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolTriangle* VToolTriangle::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                      VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogTriangle> dialogTool = dialog.objectCast<DialogTriangle>();
+    const QPointer<DialogTriangle> dialogTool = qobject_cast<DialogTriangle *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolTriangleInitData initData;
@@ -120,7 +120,7 @@ VToolTriangle* VToolTriangle::Create(QSharedPointer<DialogTool> dialog, VMainGra
     VToolTriangle* point = Create(initData);
     if (point != nullptr)
     {
-        point->m_dialog = dialogTool;
+        point->m_dialog = dialog;
     }
     return point;
 }
@@ -282,7 +282,7 @@ void VToolTriangle::SaveDialog(QDomElement &domElement, QList<quint32> &oldDepen
                                QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogTriangle> dialogTool = m_dialog.objectCast<DialogTriangle>();
+    const QPointer<DialogTriangle> dialogTool = qobject_cast<DialogTriangle *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, axisP1Id);
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtooltriangle.h b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtooltriangle.h
index 1d6e24048..76fdec27b 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtooltriangle.h
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/vtooltriangle.h
@@ -69,7 +69,7 @@ class VToolTriangle : public VToolSinglePoint
     Q_OBJECT
 public:
     virtual void   setDialog() override;
-    static VToolTriangle *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene, VAbstractPattern *doc,
+    static VToolTriangle *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene, VAbstractPattern *doc,
                                  VContainer *data);
     static VToolTriangle *Create(VToolTriangleInitData initData);
     static bool FindPoint(const QPointF &axisP1, const QPointF &axisP2, const QPointF &firstPoint,
diff --git a/src/libs/vtools/tools/drawTools/vdrawtool.h b/src/libs/vtools/tools/drawTools/vdrawtool.h
index 21f9d1012..7be7bca28 100644
--- a/src/libs/vtools/tools/drawTools/vdrawtool.h
+++ b/src/libs/vtools/tools/drawTools/vdrawtool.h
@@ -260,7 +260,7 @@ void VDrawTool::ContextMenu(QGraphicsSceneContextMenuEvent *event, quint32 itemI
     {
         qCDebug(vTool, "Show options.");
         emit qApp->getSceneView()->itemClicked(nullptr);
-        m_dialog = QSharedPointer<Dialog>(new Dialog(getData(), m_id, qApp->getMainWindow()));
+        m_dialog = QPointer<Dialog>(new Dialog(getData(), m_id, qApp->getMainWindow()));
         m_dialog->setModal(true);
 
         connect(m_dialog.data(), &DialogTool::DialogClosed, this, &VDrawTool::FullUpdateFromGuiOk);
diff --git a/src/libs/vtools/tools/drawTools/vtoolline.cpp b/src/libs/vtools/tools/drawTools/vtoolline.cpp
index 65b42bf43..324bcda90 100644
--- a/src/libs/vtools/tools/drawTools/vtoolline.cpp
+++ b/src/libs/vtools/tools/drawTools/vtoolline.cpp
@@ -86,7 +86,7 @@ VToolLine::VToolLine(const VToolLineInitData &initData, QGraphicsItem *parent)
 void VToolLine::setDialog()
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogLine> dialogTool = m_dialog.objectCast<DialogLine>();
+    const QPointer<DialogLine> dialogTool = qobject_cast<DialogLine *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     dialogTool->SetFirstPoint(firstPoint);
     dialogTool->SetSecondPoint(secondPoint);
@@ -102,11 +102,11 @@ void VToolLine::setDialog()
  * @param doc dom document container.
  * @param data container with variables.
  */
-VToolLine *VToolLine::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
+VToolLine *VToolLine::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
                              VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogLine> dialogTool = dialog.objectCast<DialogLine>();
+    const QPointer<DialogLine> dialogTool = qobject_cast<DialogLine *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolLineInitData initData;
@@ -123,7 +123,7 @@ VToolLine *VToolLine::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsSce
     VToolLine *line = Create(initData);
     if (line != nullptr)
     {
-        line->m_dialog = dialogTool;
+        line->m_dialog = dialog;
     }
     return line;
 }
@@ -379,7 +379,7 @@ void VToolLine::SaveDialog(QDomElement &domElement, QList<quint32> &oldDependenc
                            QList<quint32> &newDependencies)
 {
     SCASSERT(not m_dialog.isNull())
-    QSharedPointer<DialogLine> dialogTool = m_dialog.objectCast<DialogLine>();
+    const QPointer<DialogLine> dialogTool = qobject_cast<DialogLine *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
 
     AddDependence(oldDependencies, firstPoint);
diff --git a/src/libs/vtools/tools/drawTools/vtoolline.h b/src/libs/vtools/tools/drawTools/vtoolline.h
index eb270e21f..6488f7505 100644
--- a/src/libs/vtools/tools/drawTools/vtoolline.h
+++ b/src/libs/vtools/tools/drawTools/vtoolline.h
@@ -68,7 +68,7 @@ class VToolLine: public VDrawTool, public VScaledLine
     Q_OBJECT
 public:
     virtual void     setDialog() override;
-    static VToolLine *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene  *scene, VAbstractPattern *doc,
+    static VToolLine *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene  *scene, VAbstractPattern *doc,
                              VContainer *data);
     static VToolLine *Create(VToolLineInitData initData);
 
diff --git a/src/libs/vtools/tools/nodeDetails/vtoolpiecepath.cpp b/src/libs/vtools/tools/nodeDetails/vtoolpiecepath.cpp
index e6474f401..df684936c 100644
--- a/src/libs/vtools/tools/nodeDetails/vtoolpiecepath.cpp
+++ b/src/libs/vtools/tools/nodeDetails/vtoolpiecepath.cpp
@@ -34,11 +34,11 @@
 #include "../vtoolseamallowance.h"
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolPiecePath *VToolPiecePath::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolPiecePath *VToolPiecePath::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                        VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull());
-    QSharedPointer<DialogPiecePath> dialogTool = dialog.objectCast<DialogPiecePath>();
+    const QPointer<DialogPiecePath> dialogTool = qobject_cast<DialogPiecePath *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolPiecePathInitData initData;
diff --git a/src/libs/vtools/tools/nodeDetails/vtoolpiecepath.h b/src/libs/vtools/tools/nodeDetails/vtoolpiecepath.h
index a1e863eeb..829b3fd69 100644
--- a/src/libs/vtools/tools/nodeDetails/vtoolpiecepath.h
+++ b/src/libs/vtools/tools/nodeDetails/vtoolpiecepath.h
@@ -49,7 +49,7 @@ class VToolPiecePath : public VAbstractNode, public QGraphicsPathItem
 {
     Q_OBJECT
 public:
-    static VToolPiecePath* Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
+    static VToolPiecePath* Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene, VAbstractPattern *doc,
                                   VContainer *data);
     static VToolPiecePath *Create(VToolPiecePathInitData initData);
 
diff --git a/src/libs/vtools/tools/nodeDetails/vtoolpin.cpp b/src/libs/vtools/tools/nodeDetails/vtoolpin.cpp
index 0542a9f96..32b42e305 100644
--- a/src/libs/vtools/tools/nodeDetails/vtoolpin.cpp
+++ b/src/libs/vtools/tools/nodeDetails/vtoolpin.cpp
@@ -35,10 +35,10 @@
 const QString VToolPin::ToolType = QStringLiteral("pin");
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolPin *VToolPin::Create(QSharedPointer<DialogTool> dialog, VAbstractPattern *doc, VContainer *data)
+VToolPin *VToolPin::Create(const QPointer<DialogTool> &dialog, VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull());
-    QSharedPointer<DialogPin> dialogTool = dialog.objectCast<DialogPin>();
+    const QPointer<DialogPin> dialogTool = qobject_cast<DialogPin *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolPinInitData initData;
diff --git a/src/libs/vtools/tools/nodeDetails/vtoolpin.h b/src/libs/vtools/tools/nodeDetails/vtoolpin.h
index 1a3ec3d77..185e773a4 100644
--- a/src/libs/vtools/tools/nodeDetails/vtoolpin.h
+++ b/src/libs/vtools/tools/nodeDetails/vtoolpin.h
@@ -49,7 +49,7 @@ class VToolPin : public VAbstractNode
 {
     Q_OBJECT
 public:
-    static VToolPin* Create(QSharedPointer<DialogTool> dialog, VAbstractPattern *doc, VContainer *data);
+    static VToolPin* Create(const QPointer<DialogTool> &dialog, VAbstractPattern *doc, VContainer *data);
     static VToolPin *Create(VToolPinInitData initData);
 
     static const QString ToolType;
diff --git a/src/libs/vtools/tools/nodeDetails/vtoolplacelabel.cpp b/src/libs/vtools/tools/nodeDetails/vtoolplacelabel.cpp
index 653aa7ebb..bbac16b57 100644
--- a/src/libs/vtools/tools/nodeDetails/vtoolplacelabel.cpp
+++ b/src/libs/vtools/tools/nodeDetails/vtoolplacelabel.cpp
@@ -36,10 +36,10 @@
 const QString VToolPlaceLabel::ToolType = QStringLiteral("placeLabel");
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolPlaceLabel *VToolPlaceLabel::Create(QSharedPointer<DialogTool> dialog, VAbstractPattern *doc, VContainer *data)
+VToolPlaceLabel *VToolPlaceLabel::Create(const QPointer<DialogTool> &dialog, VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull());
-    QSharedPointer<DialogPlaceLabel> dialogTool = dialog.objectCast<DialogPlaceLabel>();
+    const QPointer<DialogPlaceLabel> dialogTool = qobject_cast<DialogPlaceLabel *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolPlaceLabelInitData initData;
diff --git a/src/libs/vtools/tools/nodeDetails/vtoolplacelabel.h b/src/libs/vtools/tools/nodeDetails/vtoolplacelabel.h
index a06e8d6e9..008867e4e 100644
--- a/src/libs/vtools/tools/nodeDetails/vtoolplacelabel.h
+++ b/src/libs/vtools/tools/nodeDetails/vtoolplacelabel.h
@@ -59,7 +59,7 @@ class VToolPlaceLabel : public VAbstractNode
 {
     Q_OBJECT
 public:
-    static VToolPlaceLabel* Create(QSharedPointer<DialogTool> dialog, VAbstractPattern *doc, VContainer *data);
+    static VToolPlaceLabel* Create(const QPointer<DialogTool> &dialog, VAbstractPattern *doc, VContainer *data);
     static VToolPlaceLabel* Create(VToolPlaceLabelInitData &initData);
 
     static const QString ToolType;
diff --git a/src/libs/vtools/tools/vinteractivetool.cpp b/src/libs/vtools/tools/vinteractivetool.cpp
index e0359e0c6..bfa08a831 100644
--- a/src/libs/vtools/tools/vinteractivetool.cpp
+++ b/src/libs/vtools/tools/vinteractivetool.cpp
@@ -38,7 +38,7 @@ VInteractiveTool::VInteractiveTool(VAbstractPattern *doc, VContainer *data, quin
 //---------------------------------------------------------------------------------------------------------------------
 void VInteractiveTool::DialogLinkDestroy()
 {
-    m_dialog.clear();
+    m_dialog->deleteLater();
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -52,7 +52,7 @@ void VInteractiveTool::FullUpdateFromGuiOk(int result)
     {
         SaveDialogChange();
     }
-    m_dialog.clear();
+    DialogLinkDestroy();
 }
 
 //---------------------------------------------------------------------------------------------------------------------
diff --git a/src/libs/vtools/tools/vinteractivetool.h b/src/libs/vtools/tools/vinteractivetool.h
index 3a7147bf0..eba32efde 100644
--- a/src/libs/vtools/tools/vinteractivetool.h
+++ b/src/libs/vtools/tools/vinteractivetool.h
@@ -49,7 +49,7 @@ public slots:
 
 protected:
     /** @brief m_dialog tool's dialog options.*/
-    QSharedPointer<DialogTool> m_dialog;
+    QPointer<DialogTool> m_dialog;
 
     /** @brief setDialog set dialog when user want change tool option. */
     virtual void setDialog() {/*do nothing by default*/}
diff --git a/src/libs/vtools/tools/vtoolseamallowance.cpp b/src/libs/vtools/tools/vtoolseamallowance.cpp
index 5f2ee7076..44a583e66 100644
--- a/src/libs/vtools/tools/vtoolseamallowance.cpp
+++ b/src/libs/vtools/tools/vtoolseamallowance.cpp
@@ -83,11 +83,11 @@ const QString VToolSeamAllowance::AttrTopPin               = QStringLiteral("top
 const QString VToolSeamAllowance::AttrBottomPin            = QStringLiteral("bottomPin");
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolSeamAllowance *VToolSeamAllowance::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolSeamAllowance *VToolSeamAllowance::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                                VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull());
-    QSharedPointer<DialogSeamAllowance> dialogTool = dialog.objectCast<DialogSeamAllowance>();
+    const QPointer<DialogSeamAllowance> dialogTool = qobject_cast<DialogSeamAllowance*>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolSeamAllowanceInitData initData;
@@ -105,7 +105,7 @@ VToolSeamAllowance *VToolSeamAllowance::Create(QSharedPointer<DialogTool> dialog
 
     if (piece != nullptr)
     {
-        piece->m_dialog = dialogTool;
+        piece->m_dialog = dialog;
     }
     return piece;
 }
@@ -152,11 +152,11 @@ VToolSeamAllowance *VToolSeamAllowance::Create(VToolSeamAllowanceInitData &initD
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VToolSeamAllowance *VToolSeamAllowance::Duplicate(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolSeamAllowance *VToolSeamAllowance::Duplicate(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                                   VAbstractPattern *doc)
 {
     SCASSERT(not dialog.isNull());
-    QSharedPointer<DialogDuplicateDetail> dialogTool = dialog.objectCast<DialogDuplicateDetail>();
+    const QPointer<DialogDuplicateDetail> dialogTool = qobject_cast<DialogDuplicateDetail*>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolSeamAllowanceInitData initData;
@@ -1270,7 +1270,7 @@ void VToolSeamAllowance::keyReleaseEvent(QKeyEvent *event)
 void VToolSeamAllowance::SetDialog()
 {
     SCASSERT(not m_dialog.isNull());
-    QSharedPointer<DialogSeamAllowance> dialogTool = m_dialog.objectCast<DialogSeamAllowance>();
+    const QPointer<DialogSeamAllowance> dialogTool = qobject_cast<DialogSeamAllowance *>(m_dialog);
     SCASSERT(not dialogTool.isNull())
     dialogTool->SetPiece(VAbstractTool::data.GetPiece(m_id));
     dialogTool->EnableApply(true);
@@ -1465,8 +1465,7 @@ void VToolSeamAllowance::SaveDialogChange(const QString &undoText)
 //---------------------------------------------------------------------------------------------------------------------
 void VToolSeamAllowance::ShowOptions()
 {
-    QSharedPointer<DialogSeamAllowance> dialog =
-            QSharedPointer<DialogSeamAllowance>(new DialogSeamAllowance(getData(), doc, m_id, qApp->getMainWindow()));
+    QPointer<DialogSeamAllowance> dialog = new DialogSeamAllowance(getData(), doc, m_id, qApp->getMainWindow());
     dialog->EnableApply(true);
     m_dialog = dialog;
     m_dialog->setModal(true);
diff --git a/src/libs/vtools/tools/vtoolseamallowance.h b/src/libs/vtools/tools/vtoolseamallowance.h
index 417ee81c0..f582f957f 100644
--- a/src/libs/vtools/tools/vtoolseamallowance.h
+++ b/src/libs/vtools/tools/vtoolseamallowance.h
@@ -61,10 +61,10 @@ class VToolSeamAllowance : public VInteractiveTool, public QGraphicsPathItem
 public:
     virtual ~VToolSeamAllowance() Q_DECL_EQ_DEFAULT;
 
-    static VToolSeamAllowance* Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+    static VToolSeamAllowance* Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                       VAbstractPattern *doc, VContainer *data);
     static VToolSeamAllowance* Create(VToolSeamAllowanceInitData &initData);
-    static VToolSeamAllowance* Duplicate(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+    static VToolSeamAllowance* Duplicate(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                          VAbstractPattern *doc);
     static VToolSeamAllowance* Duplicate(VToolSeamAllowanceInitData &initData);
 
diff --git a/src/libs/vtools/tools/vtooluniondetails.cpp b/src/libs/vtools/tools/vtooluniondetails.cpp
index 9d41f196a..131fec99c 100644
--- a/src/libs/vtools/tools/vtooluniondetails.cpp
+++ b/src/libs/vtools/tools/vtooluniondetails.cpp
@@ -1728,11 +1728,11 @@ void VToolUnionDetails::GroupVisibility(quint32 object, bool visible)
  * @param doc dom document container.
  * @param data container with variables.
  */
-VToolUnionDetails* VToolUnionDetails::Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+VToolUnionDetails* VToolUnionDetails::Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                              VAbstractPattern *doc, VContainer *data)
 {
     SCASSERT(not dialog.isNull())
-    QSharedPointer<DialogUnionDetails> dialogTool = dialog.objectCast<DialogUnionDetails>();
+    const QPointer<DialogUnionDetails> dialogTool = qobject_cast<DialogUnionDetails *>(dialog);
     SCASSERT(not dialogTool.isNull())
 
     VToolUnionDetailsInitData initData;
diff --git a/src/libs/vtools/tools/vtooluniondetails.h b/src/libs/vtools/tools/vtooluniondetails.h
index 3415a0c10..01d277ee3 100644
--- a/src/libs/vtools/tools/vtooluniondetails.h
+++ b/src/libs/vtools/tools/vtooluniondetails.h
@@ -76,7 +76,7 @@ class VToolUnionDetails : public VAbstractTool
 {
     Q_OBJECT
 public:
-    static VToolUnionDetails *Create(QSharedPointer<DialogTool> dialog, VMainGraphicsScene *scene,
+    static VToolUnionDetails *Create(const QPointer<DialogTool> &dialog, VMainGraphicsScene *scene,
                                      VAbstractPattern *doc, VContainer *data);
     static VToolUnionDetails *Create(VToolUnionDetailsInitData initData);