Merge with feature

--HG--
branch : develop

src/container/vcontainer.cpp

@@ -579,7 +579,6 @@ QVector<QPointF> VContainer::CheckLoops(const QVector<QPointF> &points) const
                 /*We found loop.*/
                 ekvPoints.append(points.at(i));
                 ekvPoints.append(crosPoint);
-                ekvPoints.append(points.at(j+1));
                 i = j + 2;
             }
         }
@@ -774,7 +773,7 @@ void VContainer::UpdateGObject(qint64 id, VGObject* obj)
     UpdateObject(gObjects, id, obj);
 }
 
-void VContainer::UpdateDetail(qint64 id, VDetail detail)
+void VContainer::UpdateDetail(qint64 id, const VDetail &detail)
 {
     Q_ASSERT_X(id > 0, Q_FUNC_INFO, "id <= 0");
     details[id] = detail;

src/container/vcontainer.h

@@ -223,7 +223,7 @@ public:
      * @param id id of existing detail
      * @param detail detail
      */
-    void                UpdateDetail(qint64 id, VDetail detail);
+    void                UpdateDetail(qint64 id, const VDetail &detail);
     /**
      * @brief UpdateStandartTableCell update standart table row by name
      * @param name name of row
@@ -279,6 +279,7 @@ public:
      * @brief ClearLineAngles clear angles of lines
      */
     inline void         ClearLineAngles() {lineAngles.clear();}
+    inline void         ClearDetails() {details.clear();}
     /**
      * @brief SetSize set value of size
      * @param size value of size in mm

src/dialogs/dialogdetail.cpp

@@ -56,6 +56,8 @@ DialogDetail::DialogDetail(const VContainer *data, QWidget *parent)
     connect(ui.checkBoxSeams, &QCheckBox::clicked, this, &DialogDetail::ClickedSeams);
     connect(ui.checkBoxClosed, &QCheckBox::clicked, this, &DialogDetail::ClickedClosed);
     connect(ui.lineEditNameDetail, &QLineEdit::textChanged, this, &DialogDetail::NamePointChanged);
+
+    connect(ui.toolButtonDelete, &QToolButton::clicked, this, &DialogDetail::DeleteItem);
 }
 
 void DialogDetail::ChoosedObject(qint64 id, const Scene::Scenes &type)
@@ -80,6 +82,7 @@ void DialogDetail::ChoosedObject(qint64 id, const Scene::Scenes &type)
                 qWarning()<<tr("Got wrong scene object. Ignore.");
                 break;
         }
+        ui.toolButtonDelete->setEnabled(true);
         this->show();
     }
 }
@@ -165,9 +168,12 @@ void DialogDetail::setDetails(const VDetail &value)
     ui.lineEditNameDetail->setText(details.getName());
     ui.checkBoxSeams->setChecked(details.getSupplement());
     ui.checkBoxClosed->setChecked(details.getClosed());
+    ClickedClosed(details.getClosed());
+    ClickedSeams(details.getSupplement());
     ui.doubleSpinBoxSeams->setValue(details.getWidth());
     ui.listWidget->setCurrentRow(0);
     ui.listWidget->setFocus(Qt::OtherFocusReason);
+    ui.toolButtonDelete->setEnabled(true);
 }
 
 void DialogDetail::BiasXChanged(qreal d)
@@ -213,3 +219,9 @@ void DialogDetail::ObjectChanged(int row)
     ui.doubleSpinBoxBiasX->setValue(toMM(node.getMx()));
     ui.doubleSpinBoxBiasY->setValue(toMM(node.getMy()));
 }
+
+void DialogDetail::DeleteItem()
+{
+    qint32 row = ui.listWidget->currentRow();
+    delete ui.listWidget->item( row );
+}

src/dialogs/dialogdetail.h

@@ -91,6 +91,7 @@ public slots:
      * @param row number of row
      */
     void             ObjectChanged(int row);
+    void             DeleteItem();
 private:
     /**
      * @brief ui keeps information about user interface

src/dialogs/dialogdetail.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>544</width>
+    <width>565</width>
-    <height>327</height>
+    <height>324</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -211,6 +211,16 @@
             </property>
            </widget>
           </item>
+          <item>
+           <widget class="QToolButton" name="toolButtonDelete">
+            <property name="enabled">
+             <bool>false</bool>
+            </property>
+            <property name="text">
+             <string>Delete</string>
+            </property>
+           </widget>
+          </item>
          </layout>
         </widget>
        </item>

src/geometry/vdetail.cpp

@@ -232,6 +232,29 @@ VDetail VDetail::RemoveEdge(const ptrdiff_t &index) const
     return det;
 }
 
+QList<qint64> VDetail::Missing(const VDetail &det) const
+{
+    QList<qint64> list;
+    if(nodes.size() == det.CountNode())
+    {
+        return list;
+    }
+
+    qint32 j = 0;
+    for(qint32 i = 0; i < nodes.size(); ++i)
+    {
+        if(nodes[i].getId() == det.at(j).getId())
+        {
+            ++j;
+        }
+        else
+        {
+            list.append(nodes[i].getId());
+        }
+    }
+    return list;
+}
+
 QVector<VNodeDetail> VDetail::listNodePoint() const
 {
     QVector<VNodeDetail> list;

src/geometry/vdetail.h

@@ -183,6 +183,7 @@ public:
     ptrdiff_t      Edge(const qint64 &p1, const qint64 &p2)const;
     void           NodeOnEdge(const ptrdiff_t &index, VNodeDetail &p1, VNodeDetail &p2)const;
     VDetail        RemoveEdge(const ptrdiff_t &index) const;
+    QList<qint64>  Missing(const VDetail &det) const;
 private:
     qint64         _id;
     /**

src/mainwindow.cpp

@@ -60,7 +60,7 @@ MainWindow::MainWindow(QWidget *parent)
     dialogCutSpline(QSharedPointer<DialogCutSpline>()), dialogCutSplinePath (QSharedPointer<DialogCutSplinePath>()),
     dialogUnionDetails(QSharedPointer<DialogUnionDetails>()), dialogCutArc(QSharedPointer<DialogCutArc>()),
     dialogHistory(0), comboBoxDraws(0), fileName(QString()), changeInFile(false),
-    mode(Draw::Calculation), currentDrawIndex(0), currentToolBoxIndex(0)
+    mode(Draw::Calculation), currentDrawIndex(0), currentToolBoxIndex(0), drawMode(true)
 {
     ui->setupUi(this);
     static const char * GENERIC_ICON_TO_CHECK = "document-open";
@@ -701,6 +701,7 @@ void MainWindow::ToolBarDraws()
 
     ui->toolBarDraws->addAction(ui->actionLayout);
     connect(ui->actionLayout, &QAction::triggered, this, &MainWindow::ActionLayout);
+    ui->actionLayout->setEnabled(false);
 }
 
 void MainWindow::currentDrawChanged( int index )
@@ -709,6 +710,9 @@ void MainWindow::currentDrawChanged( int index )
     {
         doc->setCurrentData();
         doc->ChangeActivDraw(comboBoxDraws->itemText(index));
+        if(drawMode)
+        {
+            ArrowTool();
             qint64 id = doc->SPointActiveDraw();
             if (id != 0)
             {
@@ -717,6 +721,7 @@ void MainWindow::currentDrawChanged( int index )
             }
         }
     }
+}
 
 void MainWindow::mouseMove(const QPointF &scenePos)
 {
@@ -915,15 +920,22 @@ void MainWindow::ActionDraw(bool checked)
 
         currentScene = sceneDraw;
         view->setScene(currentScene);
+        connect(view, &VMainGraphicsView::NewFactor, sceneDraw, &VMainGraphicsScene::SetFactor);
         RestoreCurrentScene();
 
         mode = Draw::Calculation;
         comboBoxDraws->setEnabled(true);
         comboBoxDraws->setCurrentIndex(currentDrawIndex);//restore current pattern peace
+        drawMode = true;
 
         SetEnableTool(true);
         doc->setCurrentData();
         ui->toolBox->setCurrentIndex(currentToolBoxIndex);
+
+        ui->actionHistory->setEnabled(true);
+        ui->actionLayout->setEnabled(false);
+        ui->actionOptionDraw->setEnabled(true);
+        ui->actionNewDraw->setEnabled(true);
     }
     else
     {
@@ -940,16 +952,24 @@ void MainWindow::ActionDetails(bool checked)
 
         currentScene = sceneDetails;
         view->setScene(sceneDetails);
+        disconnect(view, &VMainGraphicsView::NewFactor, sceneDraw, &VMainGraphicsScene::SetFactor);
         RestoreCurrentScene();
 
+        drawMode = false;
         currentDrawIndex = comboBoxDraws->currentIndex();//save current pattern peace
         comboBoxDraws->setCurrentIndex(comboBoxDraws->count()-1);
         comboBoxDraws->setEnabled(false);
 
+
         mode = Draw::Modeling;
         SetEnableTool(true);
         currentToolBoxIndex = ui->toolBox->currentIndex();
         ui->toolBox->setCurrentIndex(4);
+
+        ui->actionHistory->setEnabled(false);
+        ui->actionLayout->setEnabled(true);
+        ui->actionOptionDraw->setEnabled(false);
+        ui->actionNewDraw->setEnabled(false);
     }
     else
     {
@@ -1014,10 +1034,26 @@ void MainWindow::ActionOpen()
     if (fileName.isEmpty() && changeInFile == false)
     {
         OpenPattern(fName);
-        sceneDraw->setSceneRect(QRectF(0, 0, view->contentsRect().width()-view->contentsRect().x(),
+
-                                       view->contentsRect().height()-view->contentsRect().y()));
+        QRectF rect = sceneDraw->itemsBoundingRect();
-        sceneDetails->setSceneRect(QRectF(0, 0, view->contentsRect().width()-view->contentsRect().x(),
+        //Correct BoundingRect
-                                          view->contentsRect().height()-view->contentsRect().y()));
+        rect = QRectF(0, 0, rect.width() + rect.x(), rect.height() + rect.y());
+
+        QRect  rec = view->contentsRect();
+        //Correct contentsRect
+        rec = QRect(0, 0, rec.width() - rec.x(), rec.height() - rec.y());
+
+        if(rec.contains(rect.toRect()))
+        {
+            sceneDraw->setSceneRect(rec);
+            sceneDetails->setSceneRect(rec);
+        }
+        else
+        {
+            rect = rect.united(rec);
+            sceneDraw->setSceneRect(rect);
+            sceneDetails->setSceneRect(rect);
+        }
     }
     else
     {

src/mainwindow.h

@@ -511,6 +511,7 @@ private:
     Draw::Draws        mode;
     qint32             currentDrawIndex;
     qint32             currentToolBoxIndex;
+    bool               drawMode;
     /**
      * @brief ToolBarOption
      */

src/tools/drawTools/vtoolsinglepoint.cpp

@@ -115,23 +115,31 @@ QVariant VToolSinglePoint::itemChange(QGraphicsItem::GraphicsItemChange change,
 
             QGraphicsScene *sc = this->scene();
             QRectF rect = sc->itemsBoundingRect();
-            //Correct BoundingRect
-            rect = QRectF(0, 0, rect.width() + rect.x(), rect.height() + rect.y());
 
             QList<QGraphicsView*> list = sc->views();
-            QRect  rec = list[0]->contentsRect();
+            QRect  rec0 = list[0]->rect();
-            //Correct contentsRect
+            rec0 = QRect(0, 0, rec0.width()-2, rec0.height()-2);
-            rec = QRect(0, 0, rec.width() - rec.x(), rec.height() - rec.y());
 
-            if(rec.contains(rect.toRect()))
+            QTransform t = list[0]->transform();
+
+            QRectF rec1;
+            if(t.m11() < 1)
             {
-                sc->setSceneRect(rec);
+                rec1 = QRect(0, 0, rec0.width()/t.m11(), rec0.height()/t.m22());
+
+                rec1.translate(rec0.center().x()-rec1.center().x(), rec0.center().y()-rec1.center().y());
+                QPolygonF polygone =  list[0]->mapToScene(rec1.toRect());
+                rec1 = polygone.boundingRect();
+
             }
             else
             {
-                rect = rect.united(rec);
+                rec1 = rec0;
-                sc->setSceneRect(rect);
             }
+
+            rec1 = rec1.united(rect.toRect());
+            sc->setSceneRect(rec1);
+
             //I don't now why but signal does not work.
             doc->FullUpdateTree();
         }

src/tools/nodeDetails/vabstractnode.cpp

@@ -39,6 +39,40 @@ VAbstractNode::VAbstractNode(VDomDocument *doc, VContainer *data, const qint64 &
     _referens = 0;
 }
 
+void VAbstractNode::DeleteNode()
+{
+    if (_referens <= 1)
+    {
+        //remove from xml file
+        QDomElement domElement = doc->elementById(QString().setNum(id));
+        if (domElement.isElement())
+        {
+            QDomNode element = domElement.parentNode();
+            if (element.isNull() == false)
+            {
+                if (element.isElement())
+                {
+                    RemoveReferens();//deincrement referens
+                    element.removeChild(domElement);//remove form file
+                    emit toolhaveChange();//set enabled save button
+                }
+                else
+                {
+                    qWarning()<<"parent isn't element"<<Q_FUNC_INFO;
+                }
+            }
+            else
+            {
+                qWarning()<<"parent isNull"<<Q_FUNC_INFO;
+            }
+        }
+        else
+        {
+            qWarning()<<"Can't get element by id form file = "<<id<<Q_FUNC_INFO;
+        }
+    }
+}
+
 void VAbstractNode::AddToModeling(const QDomElement &domElement)
 {
     QDomElement modelingElement;

src/tools/nodeDetails/vabstractnode.h

@@ -54,6 +54,7 @@ public:
      */
     static const QString AttrIdObject;
     static const QString AttrIdTool;
+    virtual void DeleteNode();
 protected:
     /**
      * @brief idNode

src/tools/nodeDetails/vnodearc.cpp

@@ -78,6 +78,12 @@ void VNodeArc::Create(VDomDocument *doc, VContainer *data, qint64 id, qint64 idA
     }
 }
 
+void VNodeArc::DeleteNode()
+{
+    VAbstractNode::DeleteNode();
+    this->setVisible(false);
+}
+
 void VNodeArc::FullUpdateFromFile()
 {
     RefreshGeometry();

src/tools/nodeDetails/vnodearc.h

@@ -70,6 +70,7 @@ public:
      * @brief ToolType
      */
     static const QString ToolType;
+    virtual void DeleteNode();
 public slots:
     /**
      * @brief FullUpdateFromFile

src/tools/nodeDetails/vnodepoint.cpp

@@ -89,6 +89,12 @@ void VNodePoint::Create(VDomDocument *doc, VContainer *data, qint64 id, qint64 i
     }
 }
 
+void VNodePoint::DeleteNode()
+{
+    VAbstractNode::DeleteNode();
+    this->setVisible(false);
+}
+
 void VNodePoint::FullUpdateFromFile()
 {
     RefreshPointGeometry(*VAbstractTool::data.GeometricObject<const VPointF *>(id));

src/tools/nodeDetails/vnodepoint.h

@@ -71,6 +71,7 @@ public:
      * @brief ToolType
      */
     static const QString ToolType;
+    virtual void DeleteNode();
 public slots:
     /**
      * @brief FullUpdateFromFile

src/tools/nodeDetails/vnodespline.cpp

@@ -81,6 +81,12 @@ VNodeSpline *VNodeSpline::Create(VDomDocument *doc, VContainer *data, qint64 id,
     return spl;
 }
 
+void VNodeSpline::DeleteNode()
+{
+    VAbstractNode::DeleteNode();
+    this->setVisible(false);
+}
+
 void VNodeSpline::FullUpdateFromFile()
 {
     RefreshGeometry();

src/tools/nodeDetails/vnodespline.h

@@ -72,6 +72,7 @@ public:
      * @brief ToolType
      */
     static const QString ToolType;
+    virtual void DeleteNode();
 public slots:
     /**
      * @brief FullUpdateFromFile

src/tools/nodeDetails/vnodesplinepath.cpp

@@ -85,6 +85,12 @@ void VNodeSplinePath::Create(VDomDocument *doc, VContainer *data, qint64 id, qin
     }
 }
 
+void VNodeSplinePath::DeleteNode()
+{
+    VAbstractNode::DeleteNode();
+    this->setVisible(false);
+}
+
 void VNodeSplinePath::FullUpdateFromFile()
 {
     RefreshGeometry();

src/tools/nodeDetails/vnodesplinepath.h

@@ -71,6 +71,7 @@ public:
      * @brief ToolType
      */
     static const QString ToolType;
+    virtual void DeleteNode();
 public slots:
     /**
      * @brief FullUpdateFromFile

src/tools/vabstracttool.cpp

@@ -178,6 +178,7 @@ void VAbstractTool::RemoveAllChild(QDomElement &domElement)
     }
 }
 
+//TODO see method deleteNode. I think no need have QGraphicsItem. QObject can delete yourself.
 void VAbstractTool::DeleteTool(QGraphicsItem *tool)
 {
     if (_referens <= 1)
@@ -198,7 +199,8 @@ void VAbstractTool::DeleteTool(QGraphicsItem *tool)
                     {
                         scene->removeItem(tool);//remove form scene
                     }
-                    emit toolhaveChange();//set enabled save button
+                    doc->FullUpdateTree();
+                    //emit toolhaveChange();//set enabled save button
                 }
                 else
                 {

src/tools/vtooldetail.cpp

@@ -185,6 +185,17 @@ void VToolDetail::FullUpdateFromGui(int result)
             {
                AddNode(domElement, det[i]);
             }
+            VDetail detail = VAbstractTool::data.GetDetail(id);
+            QList<qint64> list = detail.Missing(det);
+            QHash<qint64, VDataTool*>* tools = doc->getTools();
+            if(list.size()>0)
+            {
+                for(qint32 i = 0; i < list.size(); ++i)
+                {
+                    VAbstractNode *node = qobject_cast<VAbstractNode *>(tools->value(list[i]));
+                    node->DeleteNode();
+                }
+            }
             emit FullUpdateTree();
         }
     }
@@ -247,6 +258,34 @@ QVariant VToolDetail::itemChange(QGraphicsItem::GraphicsItemChange change, const
         {
             domElement.setAttribute(AttrMx, QString().setNum(toMM(newPos.x())));
             domElement.setAttribute(AttrMy, QString().setNum(toMM(newPos.y())));
+
+            QGraphicsScene *sc = this->scene();
+            QRectF rect = sc->itemsBoundingRect();
+
+            QList<QGraphicsView*> list = sc->views();
+            QRect  rec0 = list[0]->rect();
+            rec0 = QRect(0, 0, rec0.width()-2, rec0.height()-2);
+
+            QTransform t = list[0]->transform();
+
+            QRectF rec1;
+            if(t.m11() < 1)
+            {
+                rec1 = QRect(0, 0, rec0.width()/t.m11(), rec0.height()/t.m22());
+
+                rec1.translate(rec0.center().x()-rec1.center().x(), rec0.center().y()-rec1.center().y());
+                QPolygonF polygone =  list[0]->mapToScene(rec1.toRect());
+                rec1 = polygone.boundingRect();
+
+            }
+            else
+            {
+                rec1 = rec0;
+            }
+
+            rec1 = rec1.united(rect.toRect());
+            sc->setSceneRect(rec1);
+
             doc->haveLiteChange();
         }
     }

src/tools/vtooluniondetails.cpp

@@ -139,10 +139,10 @@ void VToolUnionDetails::AddToNewDetail(QObject *tool, VDomDocument *doc, VContai
                 BiasRotatePoint(p1, dx, dy, data->GeometricObject<const VPointF *>(pRotate)->toQPointF(), angle);
                 qint64 idP1 = data->AddGObject(p1);
 
-                VPointF p2 = VPointF(spline->GetP2().x(), spline->GetP2().y(), "A", 0, 0);
+                VPointF p2 = VPointF(spline->GetP2());
                 BiasRotatePoint(&p2, dx, dy, data->GeometricObject<const VPointF *>(pRotate)->toQPointF(), angle);
 
-                VPointF p3 = VPointF(spline->GetP3().x(), spline->GetP3().y(), "A", 0, 0);
+                VPointF p3 = VPointF(spline->GetP3());
                 BiasRotatePoint(&p3, dx, dy, data->GeometricObject<const VPointF *>(pRotate)->toQPointF(), angle);
 
                 VPointF *p4 = new VPointF(spline->GetP4());
@@ -150,9 +150,9 @@ void VToolUnionDetails::AddToNewDetail(QObject *tool, VDomDocument *doc, VContai
                 BiasRotatePoint(p4, dx, dy, data->GeometricObject<const VPointF *>(pRotate)->toQPointF(), angle);
                 qint64 idP4 = data->AddGObject(p4);
 
-                VSpline *spl = new VSpline(*p1, p2.toQPointF(), p3.toQPointF(), *p4, spline->GetKcurve());
+                VSpline *spl = new VSpline(*p1, p2.toQPointF(), p3.toQPointF(), *p4, spline->GetKcurve(), 0,
+                Draw::Modeling);
                 Q_ASSERT(spl != 0);
-                spl->setMode(Draw::Modeling);
                 idObject = data->AddGObject(spl);
 
                 VSpline *spl1 = new VSpline(*spl);
@@ -208,10 +208,10 @@ void VToolUnionDetails::AddToNewDetail(QObject *tool, VDomDocument *doc, VContai
                     if (i==1)
                     {
                         path->append(VSplinePoint(*p1, splinePath->at(i-1).KAsm1(), spl.GetAngle1(),
-                                                  splinePath->at(i-1).KAsm1()));
+                                                  splinePath->at(i-1).KAsm2()));
                     }
-                        path->append(VSplinePoint(*p4, splinePath->at(i).KAsm1(), spl.GetAngle1(),
+                        path->append(VSplinePoint(*p4, splinePath->at(i).KAsm1(), spl.GetAngle2()+180,
-                                                  splinePath->at(i).KAsm1()));
+                                                  splinePath->at(i).KAsm2()));
                 }
                 while(k>=0)
                 {
@@ -310,9 +310,10 @@ void VToolUnionDetails::UpdatePoints(const qint64 &idDetail, VContainer *data, c
                 ++idCount;
                 data->UpdateGObject(idDetail+idCount, p4);
 
-                VSpline *spl = new VSpline(*p1, p2.toQPointF(), p3.toQPointF(), *p4, spline->GetKcurve());
+                VSpline *spl = new VSpline(*p1, p2.toQPointF(), p3.toQPointF(), *p4, spline->GetKcurve(), 0,
+                Draw::Modeling);
+
                 Q_ASSERT(spl != 0);
-                spl->setMode(Draw::Modeling);
                 ++idCount;
                 data->UpdateGObject(idDetail+idCount, spl);
 
@@ -364,10 +365,10 @@ void VToolUnionDetails::UpdatePoints(const qint64 &idDetail, VContainer *data, c
                     if (i==1)
                     {
                         path->append(VSplinePoint(*p1, splinePath->at(i-1).KAsm1(), spl.GetAngle1(),
-                                                  splinePath->at(i-1).KAsm1()));
+                                                  splinePath->at(i-1).KAsm2()));
                     }
-                        path->append(VSplinePoint(*p4, splinePath->at(i).KAsm1(), spl.GetAngle1(),
+                        path->append(VSplinePoint(*p4, splinePath->at(i).KAsm1(), spl.GetAngle2()+180,
-                                                  splinePath->at(i).KAsm1()));
+                                                  splinePath->at(i).KAsm2()));
                 }
 
                 while(k>=0)

src/widgets/vmaingraphicsscene.cpp

@@ -31,10 +31,14 @@
 #include <QtWidgets>
 
 VMainGraphicsScene::VMainGraphicsScene()
-    :QGraphicsScene(), horScrollBar(0), verScrollBar(0), scaleFactor(1), _transform(QTransform()){}
+    :QGraphicsScene(), horScrollBar(0), verScrollBar(0), scaleFactor(1), _transform(QTransform())
+{
+}
 
 VMainGraphicsScene::VMainGraphicsScene(const QRectF & sceneRect, QObject * parent)
-    :QGraphicsScene ( sceneRect, parent ), horScrollBar(0), verScrollBar(0), scaleFactor(1), _transform(QTransform()){}
+    :QGraphicsScene ( sceneRect, parent ), horScrollBar(0), verScrollBar(0), scaleFactor(1), _transform(QTransform())
+{
+}
 
 void VMainGraphicsScene::mouseMoveEvent(QGraphicsSceneMouseEvent* event)
 {

src/widgets/vmaingraphicsview.cpp

@@ -43,19 +43,26 @@ VMainGraphicsView::VMainGraphicsView(QWidget *parent)
 
 void VMainGraphicsView::wheelEvent(QWheelEvent *event)
 {
-    int numDegrees = event->delta() / 8;
+    int numSteps = event->delta() / 8 / 15;  // see QWheelEvent documentation
-    int numSteps = numDegrees / 15;  // see QWheelEvent documentation
+
     _numScheduledScalings += numSteps;
     if (_numScheduledScalings * numSteps < 0)
     {  // if user moved the wheel in another direction, we reset
         _numScheduledScalings = numSteps;       // previously scheduled scalings
     }
 
-    QTimeLine *anim = new QTimeLine(350, this);
+    QTimeLine *anim = new QTimeLine(300, this);
     Q_ASSERT(anim != 0);
     anim->setUpdateInterval(20);
 
+    if (QApplication::keyboardModifiers() == Qt::ControlModifier)
+    {// If you press CTRL this code will be executed
         connect(anim, &QTimeLine::valueChanged, this, &VMainGraphicsView::scalingTime);
+    }
+    else
+    {
+        connect(anim, &QTimeLine::valueChanged, this, &VMainGraphicsView::scrollingTime);
+    }
     connect(anim, &QTimeLine::finished, this, &VMainGraphicsView::animFinished);
     anim->start();
 }
@@ -63,15 +70,49 @@ void VMainGraphicsView::wheelEvent(QWheelEvent *event)
 void VMainGraphicsView::scalingTime(qreal x)
 {
     Q_UNUSED(x);
-    qreal factor = 1.0;
+    const QPointF p0scene = mapToScene(mapFromGlobal(QCursor::pos()));
-    if (QApplication::keyboardModifiers() == Qt::ControlModifier)
+
-    {// If you press CTRL this code will be executed
+    qreal factor = 1.0 + static_cast<qreal>(_numScheduledScalings) / 50.0;
-        factor = 1.0 + static_cast<qreal>(_numScheduledScalings) / 300.0;
     scale(factor, factor);
-        emit NewFactor(factor);
+
+    const QPointF p1mouse = mapFromScene(p0scene);
+    const QPointF move = p1mouse - this->mapFromGlobal(QCursor::pos()); // The move
+    horizontalScrollBar()->setValue(move.x() + horizontalScrollBar()->value());
+    verticalScrollBar()->setValue(move.y() + verticalScrollBar()->value());
+
+    QGraphicsScene *sc = this->scene();
+    QRectF rect = sc->itemsBoundingRect();
+
+    QRect  rec0 = this->rect();
+    rec0 = QRect(0, 0, rec0.width()-2, rec0.height()-2);
+
+    QTransform t = this->transform();
+
+    QRectF rec1;
+    if(t.m11() < 1)
+    {
+        rec1 = QRect(0, 0, rec0.width()/t.m11(), rec0.height()/t.m22());
+
+        rec1.translate(rec0.center().x()-rec1.center().x(), rec0.center().y()-rec1.center().y());
+        QPolygonF polygone =  this->mapToScene(rec1.toRect());
+        rec1 = polygone.boundingRect();
+
     }
     else
     {
+        rec1 = rec0;
+    }
+
+    rec1 = rec1.united(rect.toRect());
+    sc->setSceneRect(rec1);
+
+    emit NewFactor(factor);
+}
+
+void VMainGraphicsView::scrollingTime(qreal x)
+{
+    Q_UNUSED(x);
+    qreal factor = 1.0;
     if (_numScheduledScalings < 0)
     {
         verticalScrollBar()->setValue(qRound(verticalScrollBar()->value() + factor*3.5));
@@ -79,12 +120,11 @@ void VMainGraphicsView::scalingTime(qreal x)
     }
     else
     {
-            if (verticalScrollBar()->value() > 0)
+//        if (verticalScrollBar()->value() > 0)
-            {
+//        {
             verticalScrollBar()->setValue(qRound(verticalScrollBar()->value() - factor*3.5));
             emit NewFactor(factor);
-            }
+//        }
-        }
     }
 }
 

src/widgets/vmaingraphicsview.h

@@ -55,6 +55,7 @@ public slots:
      * @param x
      */
     void     scalingTime(qreal x);
+    void     scrollingTime(qreal x);
     /**
      * @brief animFinished
      */

src/xml/vdomdocument.cpp

@@ -350,6 +350,7 @@ void VDomDocument::Parse(const Document::Documents &parse, VMainGraphicsScene *s
     data->ClearLengthArcs();
     data->ClearLengthSplines();
     data->ClearLineAngles();
+    data->ClearDetails();
     history.clear();
     QDomElement rootElement = this->documentElement();
     QDomNode domNode = rootElement.firstChild();