[TD]fix 4335 section line pos on rotated base

src/Mod/TechDraw/Gui/QGIDecoration.cpp

@@ -106,6 +106,12 @@ QColor QGIDecoration::prefSelectColor()
     return PreferencesGui::selectQColor();
 }
 
+QRectF QGIDecoration::boundingRect() const
+{
+    return childrenBoundingRect();
+}
+
+
 void QGIDecoration::makeMark(double x, double y)
 {
     QGICMark* cmItem = new QGICMark(-1);

src/Mod/TechDraw/Gui/QGIDecoration.h

@@ -47,6 +47,7 @@ public:
     enum {Type = QGraphicsItem::UserType + 173};
     int type() const { return Type;}
 
+    virtual QRectF boundingRect() const;
     virtual void paint(QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget = 0 );
     virtual void draw();
     void setWidth(double w);

src/Mod/TechDraw/Gui/QGIViewPart.cpp

@@ -872,7 +872,7 @@ void QGIViewPart::drawSectionLine(TechDraw::DrawViewSection* viewSection, bool b
         double fontSize = Preferences::dimFontSizeMM();
         sectionLine->setFont(m_font, fontSize);
         sectionLine->setZValue(ZVALUE::SECTIONLINE);
-        sectionLine->setRotation(viewPart->Rotation.getValue());
+        sectionLine->setRotation(- viewPart->Rotation.getValue());
         sectionLine->draw();
     }
 }