diff --git a/src/chartdataset.cpp b/src/chartdataset.cpp
index 69ad18e..24e25b4 100644
--- a/src/chartdataset.cpp
+++ b/src/chartdataset.cpp
@@ -268,7 +268,7 @@ Domain* ChartDataSet::domain(QAxis* axis) const
     }
 }
 
-void ChartDataSet::scrollDomain(int dx,int dy,const QSizeF& size)
+void ChartDataSet::scrollDomain(qreal dx,qreal dy,const QSizeF& size)
 {
     QMapIterator<QAxis*, Domain*> i( m_axisDomainMap);
     //main domain has to be the last one;
diff --git a/src/chartdataset_p.h b/src/chartdataset_p.h
index bf2210c..1f44738 100644
--- a/src/chartdataset_p.h
+++ b/src/chartdataset_p.h
@@ -53,7 +53,7 @@ public:
 
     void zoomInDomain(const QRectF& rect, const QSizeF& size);
     void zoomOutDomain(const QRectF& rect, const QSizeF& size);
-    void scrollDomain(int dx,int dy,const QSizeF& size);
+    void scrollDomain(qreal dx,qreal dy,const QSizeF& size);
 
     int seriesCount(QAbstractSeries::SeriesType type);
     int seriesIndex(QAbstractSeries *series);
diff --git a/src/chartpresenter.cpp b/src/chartpresenter.cpp
index 1a76701..6d8b255 100644
--- a/src/chartpresenter.cpp
+++ b/src/chartpresenter.cpp
@@ -280,9 +280,8 @@ void ChartPresenter::zoomOut(qreal factor)
     m_state = ShowState;
 }
 
-void ChartPresenter::scroll(int dx,int dy)
+void ChartPresenter::scroll(qreal dx,qreal dy)
 {
-
     if(dx<0) m_state=ScrollLeftState;
     if(dx>0) m_state=ScrollRightState;
     if(dy<0) m_state=ScrollUpState;
diff --git a/src/chartpresenter_p.h b/src/chartpresenter_p.h
index d99cd72..f2830e1 100644
--- a/src/chartpresenter_p.h
+++ b/src/chartpresenter_p.h
@@ -81,7 +81,7 @@ public:
     void zoomIn(qreal factor);
     void zoomIn(const QRectF& rect);
     void zoomOut(qreal factor);
-    void scroll(int dx,int dy);
+    void scroll(qreal dx,qreal dy);
 
     void setGeometry(const QRectF& rect);
     QRectF chartGeometry() const { return m_chartRect; }
diff --git a/src/domain.cpp b/src/domain.cpp
index fdb707a..551515a 100644
--- a/src/domain.cpp
+++ b/src/domain.cpp
@@ -197,7 +197,7 @@ void Domain::zoomOut(const QRectF& rect, const QSizeF& size)
     setRange(minX,maxX,minY,maxY,tickXCount,tickYCount);
 }
 
-void Domain::move(int dx,int dy,const QSizeF& size)
+void Domain::move(qreal dx,qreal dy,const QSizeF& size)
 {
     qreal x = spanX() / size.width();
     qreal y = spanY() / size.height();
diff --git a/src/domain_p.h b/src/domain_p.h
index f408aff..1cc5ede 100644
--- a/src/domain_p.h
+++ b/src/domain_p.h
@@ -62,7 +62,7 @@ public:
 
     void zoomIn(const QRectF& rect, const QSizeF& size);
     void zoomOut(const QRectF& rect, const QSizeF& size);
-    void move(int dx,int dy,const QSizeF& size);
+    void move(qreal dx,qreal dy,const QSizeF& size);
 
 Q_SIGNALS:
     void domainChanged(qreal minX, qreal maxX, qreal minY, qreal maxY);