removed unused signal

src/board/UBBoardView.cpp

@@ -176,17 +176,6 @@ UBGraphicsScene* UBBoardView::scene ()
     return qobject_cast<UBGraphicsScene*> (QGraphicsView::scene ());
 }
 
-void UBBoardView::hideEvent (QHideEvent * event)
-{
-    Q_UNUSED (event);
-    emit hidden ();
-}
-
-void UBBoardView::showEvent (QShowEvent * event)
-{
-    Q_UNUSED (event);
-    emit shown ();
-}
 
 void UBBoardView::keyPressEvent (QKeyEvent *event)
 {

src/board/UBBoardView.h

@@ -61,7 +61,6 @@ class UBBoardView : public QGraphicsView
 signals:
 
     void resized(QResizeEvent* event);
-        void hidden();
     void shown();
     void clickOnBoard();
 
@@ -98,7 +97,6 @@ class UBBoardView : public QGraphicsView
                            QGraphicsItem *items[],
                            const QStyleOptionGraphicsItem options[]);
 
-//        virtual void dragEnterEvent(QDragEnterEvent * event);
     virtual void dropEvent(QDropEvent *event);
     virtual void dragMoveEvent(QDragMoveEvent *event);
 
@@ -106,9 +104,6 @@ class UBBoardView : public QGraphicsView
 
     virtual void drawBackground(QPainter *painter, const QRectF &rect);
 
-        virtual void showEvent(QShowEvent * event);
-        virtual void hideEvent(QHideEvent * event);
-
 private:
 
     void init();

src/tools/UBAbstractDrawRuler.h

@@ -44,9 +44,6 @@ public:
     virtual void DrawLine(const QPointF& position, qreal width);
     virtual void EndLine();
 
-    signals:
-        void hidden();
-
 protected:
 
     void paint();

src/tools/UBGraphicsCompass.cpp

@@ -299,8 +299,6 @@ void UBGraphicsCompass::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
     else if (closeButtonRect().contains(event->pos()))
     {
         hide();
-
-        emit hidden();
         event->accept();
     }
     else

src/tools/UBGraphicsCompass.h

@@ -51,10 +51,6 @@ class UBGraphicsCompass: public QObject, public QGraphicsRectItem, public UBItem
 
         virtual void copyItemParameters(UBItem *copy) const;
 
-    signals:
-
-       void hidden();
-
     protected:
         virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *styleOption, QWidget *widget);
         virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value);

src/tools/UBGraphicsProtractor.cpp

@@ -240,7 +240,6 @@ void UBGraphicsProtractor::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
 
     case Close :
         hide();
-        emit hidden();
         break;
 
     case MoveMarker :

src/tools/UBGraphicsRuler.cpp

@@ -371,7 +371,6 @@ void UBGraphicsRuler::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
     else if (closeButtonRect().contains(event->pos()))
     {
         hide();
-        emit hidden();
         event->accept();
     }
     else

src/tools/UBGraphicsTriangle.cpp

@@ -716,7 +716,6 @@ void UBGraphicsTriangle::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
     else if (closeButtonRect().contains(event->pos()))
     {
         hide();
-        emit hidden();
         event->accept();
     }
     else if (hFlipRect().contains(event->pos()))