fdo#81356: convert Fraction to boost::rational<long> - wip

* Added rational util functions used by Fraction class not
available in the boost::rational class.
* Replaced usage of Fraction by boost::rational<long>
* Removed code that relies on:
1. fraction.IsValid() -- rational only allow valid values, ie
denominator() != 0
2. rational.denominator() == 0 -- always false
3. rational.denominator() < 0 -- always false but implementation
detail: http://www.boost.org/doc/libs/release/libs/rational/rational.html#Internal%20representation
* Simplified code that relies on:
1. rational.denominator() != 0 -- always true
* BUGS EXIST because Fraction allows the creation of invalid values but
boost::rational throws the exception boost::bad_rational

Change-Id: I84970a4956afb3f91ac0c8f726547466319420f9
Reviewed-on: https://gerrit.libreoffice.org/11551
Reviewed-by: David Tardon <dtardon@redhat.com>
Tested-by: David Tardon <dtardon@redhat.com>

48 files changed, 145 insertions, 268 deletions

diff --git a/include/oox/export/chartexport.hxx b/include/oox/export/chartexport.hxx
index 02ee8f19bba4..74f9236119d4 100644
--- a/include/oox/export/chartexport.hxx
+++ b/include/oox/export/chartexport.hxx
@@ -84,7 +84,7 @@ public:
 private:
     sal_Int32           mnXmlNamespace;
     sal_Int32           mnSeriesCount;
-    Fraction            maFraction;
+    boost::rational<long>            maFraction;
     ::com::sun::star::uno::Reference< ::com::sun::star::frame::XModel > mxChartModel;
     com::sun::star::uno::Reference< com::sun::star::chart::XDiagram > mxDiagram;
     com::sun::star::uno::Reference< com::sun::star::chart2::XDiagram > mxNewDiagram;
diff --git a/include/oox/export/shapes.hxx b/include/oox/export/shapes.hxx
index 995ef356bae7..250729b243a3 100644
--- a/include/oox/export/shapes.hxx
+++ b/include/oox/export/shapes.hxx
@@ -66,7 +66,7 @@ protected:
 
 private:
     sal_Int32           mnXmlNamespace;
-    Fraction            maFraction;
+    boost::rational<long>            maFraction;
     MapMode             maMapModeSrc, maMapModeDest;
 
     ::com::sun::star::awt::Size MapSize( const ::com::sun::star::awt::Size& ) const;
diff --git a/include/sfx2/ipclient.hxx b/include/sfx2/ipclient.hxx
index 10ab174bbdbd..350c7ac14944 100644
--- a/include/sfx2/ipclient.hxx
+++ b/include/sfx2/ipclient.hxx
@@ -34,7 +34,7 @@ class SfxInPlaceClient_Impl;
 class SfxViewShell;
 class SfxObjectShell;
 namespace vcl { class Window; }
-class Fraction;
+namespace boost { template<typename T> class rational; }
 
 
 
@@ -74,10 +74,10 @@ public:
     bool                SetObjArea( const Rectangle & );
     Rectangle           GetObjArea() const;
     Rectangle           GetScaledObjArea() const;
-    void                SetSizeScale( const Fraction & rScaleWidth, const Fraction & rScaleHeight );
-    bool                SetObjAreaAndScale( const Rectangle&, const Fraction&, const Fraction& );
-    const Fraction&     GetScaleWidth() const;
-    const Fraction&     GetScaleHeight() const;
+    void                SetSizeScale( const boost::rational<long> & rScaleWidth, const boost::rational<long> & rScaleHeight );
+    bool                SetObjAreaAndScale( const Rectangle&, const boost::rational<long>&, const boost::rational<long>& );
+    const boost::rational<long>&     GetScaleWidth() const;
+    const boost::rational<long>&     GetScaleHeight() const;
     void                Invalidate();
     static SfxInPlaceClient* GetClient( SfxObjectShell* pDoc, const com::sun::star::uno::Reference < com::sun::star::embed::XEmbeddedObject >& xObject );
     sal_Int64           GetAspect() const;
diff --git a/include/sfx2/objsh.hxx b/include/sfx2/objsh.hxx
index d9d4e956e5cd..42487bcc8333 100644
--- a/include/sfx2/objsh.hxx
+++ b/include/sfx2/objsh.hxx
@@ -638,8 +638,8 @@ public:
 
     SAL_DLLPRIVATE void DoDraw_Impl( OutputDevice* pDev,
                                             const Point & rViewPos,
-                                            const Fraction & rScaleX,
-                                            const Fraction & rScaleY,
+                                            const boost::rational<long>& rScaleX,
+                                            const boost::rational<long>& rScaleY,
                                             const JobSetup & rSetup,
                                             sal_uInt16 nAspect );
 
diff --git a/include/sfx2/viewfrm.hxx b/include/sfx2/viewfrm.hxx
index 1d043fcd2ded..9acc0e23fd85 100644
--- a/include/sfx2/viewfrm.hxx
+++ b/include/sfx2/viewfrm.hxx
@@ -43,7 +43,7 @@ class SfxProgress;
 class SvData;
 class SfxViewShell;
 class SystemWindow;
-class Fraction;
+namespace boost { template<typename T> class rational; }
 class Point;
 class Size;
 class SfxChildWindow;
@@ -118,7 +118,7 @@ public:
     SfxBindings&            GetBindings() { return *pBindings; }
     const SfxBindings&      GetBindings() const  { return *pBindings; }
     vcl::Window&                 GetWindow() const;
-    virtual void            SetZoomFactor( const Fraction &rZoomX, const Fraction &rZoomY );
+    virtual void            SetZoomFactor( const boost::rational<long>& rZoomX, const boost::rational<long>& rZoomY );
 
     SfxProgress*            GetProgress() const;
 
diff --git a/include/sfx2/viewsh.hxx b/include/sfx2/viewsh.hxx
index 20114cfac991..827bdfd8a615 100644
--- a/include/sfx2/viewsh.hxx
+++ b/include/sfx2/viewsh.hxx
@@ -39,7 +39,7 @@
 
 class SfxBaseController;
 class Size;
-class Fraction;
+namespace boost { template<typename T> class rational; }
 namespace vcl { class Window; }
 class KeyEvent;
 class WorkWindow;
@@ -146,7 +146,7 @@ protected:
 
     virtual void                InnerResizePixel( const Point &rOfs, const Size &rSize );
     virtual void                OuterResizePixel( const Point &rOfs, const Size &rSize );
-    virtual void                SetZoomFactor( const Fraction &rZoomX, const Fraction &rZoomY );
+    virtual void                SetZoomFactor( const boost::rational<long>& rZoomX, const boost::rational<long>& rZoomY );
 
     virtual void                Move();
 
diff --git a/include/svtools/imap.hxx b/include/svtools/imap.hxx
index 951251d11bf0..37a513352778 100644
--- a/include/svtools/imap.hxx
+++ b/include/svtools/imap.hxx
@@ -27,7 +27,7 @@
 class Point;
 class Rectangle;
 class Size;
-class Fraction;
+namespace boost { template<typename T> class rational; }
 class IMapObject;
 
 typedef ::std::vector< IMapObject* > IMapObjectList_impl;
@@ -117,7 +117,7 @@ public:
     void                SetName( const OUString& rName ) { aName = rName; }
 
     // skaliert alle Objekte der ImageMap entpr. dem uebergebenen Faktor
-    void                Scale( const Fraction& rFractX, const Fraction& rFracY );
+    void                Scale( const boost::rational<long>& rFractX, const boost::rational<long>& rFracY );
 
     // Im-/Export
     void                Write ( SvStream& rOStm, const OUString& rBaseURL ) const;
diff --git a/include/svtools/imapcirc.hxx b/include/svtools/imapcirc.hxx
index 2ce4127b1bc7..fd6c164c439a 100644
--- a/include/svtools/imapcirc.hxx
+++ b/include/svtools/imapcirc.hxx
@@ -23,7 +23,7 @@
 #include <tools/gen.hxx>
 #include <svtools/imapobj.hxx>
 
-class Fraction;
+namespace boost { template<typename T> class rational; }
 
 class SVT_DLLPUBLIC IMapCircleObject : public IMapObject
 {
@@ -60,7 +60,7 @@ public:
     // liefert das BoundRect des Kreis-Objektes in 1/100mm
     virtual Rectangle   GetBoundRect() const SAL_OVERRIDE;
 
-    void                Scale( const Fraction& rFractX, const Fraction& rFracY );
+    void                Scale( const boost::rational<long>& rFractX, const boost::rational<long>& rFracY );
 
     using IMapObject::IsEqual;
     bool                IsEqual( const IMapCircleObject& rEqObj );
diff --git a/include/svtools/imappoly.hxx b/include/svtools/imappoly.hxx
index 79ca52a0a1c7..e01b3114205b 100644
--- a/include/svtools/imappoly.hxx
+++ b/include/svtools/imappoly.hxx
@@ -24,7 +24,7 @@
 #include <svtools/imapobj.hxx>
 #include <tools/poly.hxx>
 
-class Fraction;
+namespace boost { template<typename T> class rational; }
 
 class SVT_DLLPUBLIC IMapPolygonObject : public IMapObject
 {
@@ -66,7 +66,7 @@ public:
     const Rectangle&    GetExtraEllipse() const { return aEllipse; }
     void                SetExtraEllipse( const Rectangle& rEllipse );
 
-    void                Scale( const Fraction& rFractX, const Fraction& rFracY );
+    void                Scale( const boost::rational<long>& rFractX, const boost::rational<long>& rFracY );
 
     using IMapObject::IsEqual;
     bool                IsEqual( const IMapPolygonObject& rEqObj );
diff --git a/include/svtools/imaprect.hxx b/include/svtools/imaprect.hxx
index 17c96841a5d1..6855fb36926c 100644
--- a/include/svtools/imaprect.hxx
+++ b/include/svtools/imaprect.hxx
@@ -23,7 +23,7 @@
 #include <svtools/imapobj.hxx>
 #include <tools/gen.hxx>
 
-class Fraction;
+namespace boost { template<typename T> class rational; }
 
 class SVT_DLLPUBLIC IMapRectangleObject : public IMapObject
 {
@@ -58,7 +58,7 @@ public:
     // liefert das BoundRect des Rechteck-Objektes in 1/100mm
     virtual Rectangle   GetBoundRect() const SAL_OVERRIDE { return aRect; }
 
-    void                Scale( const Fraction& rFractX, const Fraction& rFracY );
+    void                Scale( const boost::rational<long>& rFractX, const boost::rational<long>& rFracY );
 
     using IMapObject::IsEqual;
     bool                IsEqual( const IMapRectangleObject& rEqObj );
diff --git a/include/svtools/ruler.hxx b/include/svtools/ruler.hxx
index 49d4e424da4b..a27a92175a5f 100644
--- a/include/svtools/ruler.hxx
+++ b/include/svtools/ruler.hxx
@@ -644,7 +644,7 @@ private:
     RulerType       meDragType;
     MapUnit         meSourceUnit;
     FieldUnit       meUnit;
-    Fraction        maZoom;
+    boost::rational<long>        maZoom;
     bool            mbCalc;
     bool            mbFormat;
     bool            mbDrag;
@@ -745,8 +745,8 @@ public:
 
     void            SetUnit( FieldUnit eNewUnit );
     FieldUnit       GetUnit() const { return meUnit; }
-    void            SetZoom( const Fraction& rNewZoom );
-    Fraction        GetZoom() const { return maZoom; }
+    void            SetZoom( const boost::rational<long>& rNewZoom );
+    boost::rational<long>        GetZoom() const { return maZoom; }
 
     void            SetSourceUnit( MapUnit eNewUnit ) { meSourceUnit = eNewUnit; }
     MapUnit         GetSourceUnit() const { return meSourceUnit; }
diff --git a/include/svx/obj3d.hxx b/include/svx/obj3d.hxx
index ac7e52493ef7..c1e37963c70c 100644
--- a/include/svx/obj3d.hxx
+++ b/include/svx/obj3d.hxx
@@ -153,7 +153,7 @@ public:
     virtual void        SetPage(SdrPage* pNewPage) SAL_OVERRIDE;
     virtual void        SetModel(SdrModel* pNewModel) SAL_OVERRIDE;
     virtual void        NbcMove(const Size& rSize) SAL_OVERRIDE;
-    virtual void NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact) SAL_OVERRIDE;
+    virtual void NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact) SAL_OVERRIDE;
     virtual SdrObjList* GetSubList() const SAL_OVERRIDE;
 
     // Insert 3D object into the group; transfer to other owner!
diff --git a/include/svx/scene3d.hxx b/include/svx/scene3d.hxx
index 332fa2a7fa8d..b519126bea54 100644
--- a/include/svx/scene3d.hxx
+++ b/include/svx/scene3d.hxx
@@ -191,8 +191,8 @@ public:
 
     virtual void    NbcSetSnapRect(const Rectangle& rRect) SAL_OVERRIDE;
     virtual void    NbcMove(const Size& rSize) SAL_OVERRIDE;
-    virtual void    NbcResize(const Point& rRef, const Fraction& rXFact,
-                                                 const Fraction& rYFact) SAL_OVERRIDE;
+    virtual void    NbcResize(const Point& rRef, const boost::rational<long>& rXFact,
+                                                 const boost::rational<long>& rYFact) SAL_OVERRIDE;
     virtual void    RecalcSnapRect() SAL_OVERRIDE;
 
     virtual E3dScene* GetScene() const SAL_OVERRIDE;
diff --git a/include/svx/sdr/properties/defaultproperties.hxx b/include/svx/sdr/properties/defaultproperties.hxx
index 97fca16cb310..9e9defe1e65a 100644
--- a/include/svx/sdr/properties/defaultproperties.hxx
+++ b/include/svx/sdr/properties/defaultproperties.hxx
@@ -94,7 +94,7 @@ namespace sdr
             virtual void ForceDefaultAttributes();
 
             // Scale the included ItemSet.
-            virtual void Scale(const Fraction& rScale) SAL_OVERRIDE;
+            virtual void Scale(const boost::rational<long>& rScale) SAL_OVERRIDE;
         };
     } // end of namespace properties
 } // end of namespace sdr
diff --git a/include/svx/sdr/properties/properties.hxx b/include/svx/sdr/properties/properties.hxx
index 6229e45e388e..2bb32dfae246 100644
--- a/include/svx/sdr/properties/properties.hxx
+++ b/include/svx/sdr/properties/properties.hxx
@@ -30,7 +30,7 @@ class SdrObject;
 class SfxItemSet;
 class SfxPoolItem;
 class SfxStyleSheet;
-class Fraction;
+namespace boost { template<typename T> class rational; }
 class SfxItemPool;
 class SdrModel;
 
@@ -146,7 +146,7 @@ namespace sdr
 
             // Scale the local ItemSet as far as it contains metric items. This needs to be
             // overloaded to do it for hierarchical objects like e.g. groups.
-            virtual void Scale(const Fraction& rScale);
+            virtual void Scale(const boost::rational<long>& rScale);
 
             // Move local items to a new ItemPool. This needs to be
             // overloaded to do it for hierarchical objects like e.g. groups.
diff --git a/include/svx/svddrag.hxx b/include/svx/svddrag.hxx
index fd43db2bf1d7..1a11e0c6f4bb 100644
--- a/include/svx/svddrag.hxx
+++ b/include/svx/svddrag.hxx
@@ -22,7 +22,7 @@
 
 
 #include <tools/gen.hxx>
-#include <tools/fract.hxx>
+#include <tools/rational.hxx>
 #include <svx/svxdllapi.h>
 
 // Status information for specialized object dragging. In order for the model
@@ -146,8 +146,8 @@ public:
     bool CheckMinMoved(const Point& rPnt);
     long  GetDX() const                     { return GetNow().X()-GetPrev().X(); }
     long  GetDY() const                     { return GetNow().Y()-GetPrev().Y(); }
-    Fraction GetXFact() const;
-    Fraction GetYFact() const;
+    boost::rational<long> GetXFact() const;
+    boost::rational<long> GetYFact() const;
 
     SdrDragMethod* GetDragMethod() const               { return pDragMethod; }
     void           SetDragMethod(SdrDragMethod* pMth)  { pDragMethod=pMth; }
diff --git a/include/svx/svddrgmt.hxx b/include/svx/svddrgmt.hxx
index 6e2fa4a87359..ad37eeee3099 100644
--- a/include/svx/svddrgmt.hxx
+++ b/include/svx/svddrgmt.hxx
@@ -258,8 +258,8 @@ public:
 class SVX_DLLPUBLIC SdrDragResize : public SdrDragMethod
 {
 protected:
-    Fraction                    aXFact;
-    Fraction                    aYFact;
+    boost::rational<long>       aXFact;
+    boost::rational<long>       aYFact;
 
 public:
     TYPEINFO_OVERRIDE();
diff --git a/include/svx/svdedtv.hxx b/include/svx/svdedtv.hxx
index 178282064075..12b27b84bb41 100644
--- a/include/svx/svdedtv.hxx
+++ b/include/svx/svdedtv.hxx
@@ -212,8 +212,8 @@ public:
     // waagerechte Linie hat z.B. immer eine Hoehe von 0.
     void SetMarkedObjRect(const Rectangle& rRect, bool bCopy=false);
     void MoveMarkedObj(const Size& rSiz, bool bCopy=false);
-    void ResizeMarkedObj(const Point& rRef, const Fraction& xFact, const Fraction& yFact, bool bCopy=false);
-    void ResizeMultMarkedObj(const Point& rRef, const Fraction& xFact, const Fraction& yFact, const bool bCopy, const bool bWdh, const bool bHgt);
+    void ResizeMarkedObj(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact, bool bCopy=false);
+    void ResizeMultMarkedObj(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact, const bool bCopy, const bool bWdh, const bool bHgt);
     long GetMarkedObjRotate() const;
     void RotateMarkedObj(const Point& rRef, long nWink, bool bCopy=false);
     void MirrorMarkedObj(const Point& rRef1, const Point& rRef2, bool bCopy=false);
@@ -228,7 +228,7 @@ public:
     void CopyMarkedObj();
     void SetAllMarkedRect(const Rectangle& rRect, bool bCopy=false) { SetMarkedObjRect(rRect,bCopy); }
     void MoveAllMarked(const Size& rSiz, bool bCopy=false) { MoveMarkedObj   (rSiz,bCopy); }
-    void ResizeAllMarked(const Point& rRef, const Fraction& xFact, const Fraction& yFact, bool bCopy=false) { ResizeMarkedObj (rRef,xFact,yFact,bCopy); }
+    void ResizeAllMarked(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact, bool bCopy=false) { ResizeMarkedObj (rRef,xFact,yFact,bCopy); }
     long GetAllMarkedRotate() const { return GetMarkedObjRotate(); }
     void RotateAllMarked(const Point& rRef, long nWink, bool bCopy=false) { RotateMarkedObj(rRef,nWink,bCopy); }
     void MirrorAllMarked(const Point& rRef1, const Point& rRef2, bool bCopy=false) { MirrorMarkedObj(rRef1,rRef2,bCopy); }
diff --git a/include/svx/svdetc.hxx b/include/svx/svdetc.hxx
index e524364ed080..2ec177c4daa9 100644
--- a/include/svx/svdetc.hxx
+++ b/include/svx/svdetc.hxx
@@ -62,7 +62,7 @@ friend class SdrAttrObj;
     Color      aFontColor;
     sal_uIntPtr      nFontHeight;
     MapUnit    eMapUnit;
-    Fraction   aMapFraction;
+    boost::rational<long>   aMapFraction;
 
 private:
     static SdrEngineDefaults& GetDefaults();
@@ -92,8 +92,8 @@ public:
     static void       SetMapUnit(MapUnit eMap)             { GetDefaults().eMapUnit=eMap; }
     static MapUnit    GetMapUnit()                         { return GetDefaults().eMapUnit; }
     // Default MapFraction ist 1/1.
-    static void       SetMapFraction(const Fraction& rMap) { GetDefaults().aMapFraction=rMap; }
-    static Fraction   GetMapFraction()                     { return GetDefaults().aMapFraction; }
+    static void       SetMapFraction(const boost::rational<long>& rMap) { GetDefaults().aMapFraction=rMap; }
+    static boost::rational<long>   GetMapFraction()                     { return GetDefaults().aMapFraction; }
 
     // Einen Outliner mit den engineglobalen
     // Defaulteinstellungen auf dem Heap erzeugen.
diff --git a/include/svx/svdglev.hxx b/include/svx/svdglev.hxx
index 8a9e420815a2..b1576bda5047 100644
--- a/include/svx/svdglev.hxx
+++ b/include/svx/svdglev.hxx
@@ -78,7 +78,7 @@ public:
     void DeleteMarkedGluePoints();
 
     void MoveMarkedGluePoints  (const Size& rSiz, bool bCopy=false);
-    void ResizeMarkedGluePoints(const Point& rRef, const Fraction& xFact, const Fraction& yFact, bool bCopy=false);
+    void ResizeMarkedGluePoints(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact, bool bCopy=false);
     void RotateMarkedGluePoints(const Point& rRef, long nWink, bool bCopy=false);
     void MirrorMarkedGluePoints(const Point& rRef1, const Point& rRef2, bool bCopy=false);
     void MirrorMarkedGluePointsHorizontal(bool bCopy=false);
diff --git a/include/svx/svdmodel.hxx b/include/svx/svdmodel.hxx
index 0d9b03b3480a..850185edb581 100644
--- a/include/svx/svdmodel.hxx
+++ b/include/svx/svdmodel.hxx
@@ -155,12 +155,12 @@ protected:
     Link           aIOProgressLink;
     OUString       aTablePath;
     Size           aMaxObjSize; // e.g. for auto-growing text
-    Fraction       aObjUnit;   // description of the coordinate units for ClipBoard, Drag&Drop, ...
+    boost::rational<long>       aObjUnit;   // description of the coordinate units for ClipBoard, Drag&Drop, ...
     MapUnit        eObjUnit;   // see above
     FieldUnit      eUIUnit;      // unit, scale (e.g. 1/1000) for the UI (status bar) is set by ImpSetUIUnit()
-    Fraction       aUIScale;     // see above
+    boost::rational<long>       aUIScale;     // see above
     OUString       aUIUnitStr;   // see above
-    Fraction       aUIUnitFact;  // see above
+    boost::rational<long>       aUIUnitFact;  // see above
     int            nUIUnitKomma; // see above
 
     SdrLayerAdmin*  pLayerAdmin;
@@ -374,10 +374,10 @@ public:
     // with the correct sizes.
     MapUnit          GetScaleUnit() const                       { return eObjUnit; }
     void             SetScaleUnit(MapUnit eMap);
-    const Fraction&  GetScaleFraction() const                   { return aObjUnit; }
-    void             SetScaleFraction(const Fraction& rFrac);
+    const boost::rational<long>&  GetScaleFraction() const      { return aObjUnit; }
+    void             SetScaleFraction(const boost::rational<long>& rFrac);
     // Setting both simultaneously performs a little better
-    void             SetScaleUnit(MapUnit eMap, const Fraction& rFrac);
+    void             SetScaleUnit(MapUnit eMap, const boost::rational<long>& rFrac);
 
     // maximal size e.g. for auto growing texts
     const Size&      GetMaxObjSize() const                      { return aMaxObjSize; }
@@ -387,12 +387,12 @@ public:
     void             SetUIUnit(FieldUnit eUnit);
     FieldUnit        GetUIUnit() const                          { return eUIUnit; }
     // The scale of the drawing. Default 1/1.
-    void             SetUIScale(const Fraction& rScale);
-    const Fraction&  GetUIScale() const                         { return aUIScale; }
+    void             SetUIScale(const boost::rational<long>& rScale);
+    const boost::rational<long>&  GetUIScale() const            { return aUIScale; }
     // Setting both simultaneously performs a little better
-    void             SetUIUnit(FieldUnit eUnit, const Fraction& rScale);
+    void             SetUIUnit(FieldUnit eUnit, const boost::rational<long>& rScale);
 
-    const Fraction&  GetUIUnitFact() const                      { return aUIUnitFact; }
+    const boost::rational<long>&  GetUIUnitFact() const         { return aUIUnitFact; }
     const OUString&  GetUIUnitStr() const                       { return aUIUnitStr; }
     int              GetUIUnitKomma() const                     { return nUIUnitKomma; }
     bool             IsUIOnlyKomma() const                      { return bUIOnlyKomma; }
@@ -400,7 +400,7 @@ public:
     static void      TakeUnitStr(FieldUnit eUnit, OUString& rStr);
     void             TakeMetricStr(long nVal, OUString& rStr, bool bNoUnitChars = false, sal_Int32 nNumDigits = -1) const;
     void             TakeWinkStr(long nWink, OUString& rStr, bool bNoDegChar = false) const;
-    void             TakePercentStr(const Fraction& rVal, OUString& rStr, bool bNoPercentChar = false) const;
+    void             TakePercentStr(const boost::rational<long>& rVal, OUString& rStr, bool bNoPercentChar = false) const;
 
     // RecalcPageNums is ordinarily only called by the Page.
     bool         IsPagNumsDirty() const                     { return bPagNumsDirty; };
diff --git a/include/svx/svdoashp.hxx b/include/svx/svdoashp.hxx
index 169dd13b9dca..bca9283c6f93 100644
--- a/include/svx/svdoashp.hxx
+++ b/include/svx/svdoashp.hxx
@@ -188,13 +188,13 @@ public:
     virtual const Rectangle& GetLogicRect() const SAL_OVERRIDE;
 
     virtual void Move(const Size& rSiz) SAL_OVERRIDE;
-    virtual void Resize(const Point& rRef, const Fraction& xFact, const Fraction& yFact, bool bUnsetRelative = true) SAL_OVERRIDE;
+    virtual void Resize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact, bool bUnsetRelative = true) SAL_OVERRIDE;
     virtual void Shear(const Point& rRef, long nWink, double tn, bool bVShear) SAL_OVERRIDE;
     virtual void SetSnapRect(const Rectangle& rRect) SAL_OVERRIDE;
     virtual void SetLogicRect(const Rectangle& rRect) SAL_OVERRIDE;
 
     virtual void NbcMove(const Size& rSiz) SAL_OVERRIDE;
-    virtual void NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact) SAL_OVERRIDE;
+    virtual void NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact) SAL_OVERRIDE;
     virtual void NbcRotate(const Point& rRef, long nWink, double sn, double cs) SAL_OVERRIDE;
     virtual void NbcMirror(const Point& rRef1, const Point& rRef2) SAL_OVERRIDE;
     virtual void NbcShear(const Point& rRef, long nWink, double tn, bool bVShear) SAL_OVERRIDE;
diff --git a/include/svx/svdobj.hxx b/include/svx/svdobj.hxx
index 81b176a668f5..f1dc3a3bf94c 100644
--- a/include/svx/svdobj.hxx
+++ b/include/svx/svdobj.hxx
@@ -672,13 +672,13 @@ public:
     // Objekte sollten i.d.R. nur die Nbc-Methoden ueberladen.
     // Nbc bedeutet: 'NoBroadcast'.
     virtual void NbcMove  (const Size& rSiz);
-    virtual void NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact);
+    virtual void NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact);
     virtual void NbcRotate(const Point& rRef, long nWink, double sn, double cs);
     virtual void NbcMirror(const Point& rRef1, const Point& rRef2);
     virtual void NbcShear (const Point& rRef, long nWink, double tn, bool bVShear);
 
     virtual void Move  (const Size& rSiz);
-    virtual void Resize(const Point& rRef, const Fraction& xFact, const Fraction& yFact, bool bUnsetRelative = true);
+    virtual void Resize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact, bool bUnsetRelative = true);
     virtual void Rotate(const Point& rRef, long nWink, double sn, double cs);
     virtual void Mirror(const Point& rRef1, const Point& rRef2);
     virtual void Shear (const Point& rRef, long nWink, double tn, bool bVShear);
diff --git a/include/svx/svdocapt.hxx b/include/svx/svdocapt.hxx
index e7e372866280..a10b0f7f6e1b 100644
--- a/include/svx/svdocapt.hxx
+++ b/include/svx/svdocapt.hxx
@@ -116,7 +116,7 @@ public:
     virtual Pointer GetCreatePointer() const SAL_OVERRIDE;
 
     virtual void NbcMove(const Size& rSiz) SAL_OVERRIDE;
-    virtual void NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact) SAL_OVERRIDE;
+    virtual void NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact) SAL_OVERRIDE;
 
     virtual void NbcSetRelativePos(const Point& rPnt) SAL_OVERRIDE;
     virtual Point GetRelativePos() const SAL_OVERRIDE;
diff --git a/include/svx/svdocirc.hxx b/include/svx/svdocirc.hxx
index 40386fdf989d..036a4bee4df4 100644
--- a/include/svx/svdocirc.hxx
+++ b/include/svx/svdocirc.hxx
@@ -112,7 +112,7 @@ public:
     virtual basegfx::B2DPolyPolygon TakeCreatePoly(const SdrDragStat& rDrag) const SAL_OVERRIDE;
     virtual Pointer GetCreatePointer() const SAL_OVERRIDE;
     virtual void NbcMove(const Size& aSiz) SAL_OVERRIDE;
-    virtual void NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact) SAL_OVERRIDE;
+    virtual void NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact) SAL_OVERRIDE;
     virtual void NbcMirror(const Point& rRef1, const Point& rRef2) SAL_OVERRIDE;
     virtual void NbcShear (const Point& rRef, long nWink, double tn, bool bVShear) SAL_OVERRIDE;
     virtual SdrObject* DoConvertToPolyObj(bool bBezier, bool bAddText) const SAL_OVERRIDE;
diff --git a/include/svx/svdoedge.hxx b/include/svx/svdoedge.hxx
index 438c5e764188..8161ca55cf2b 100644
--- a/include/svx/svdoedge.hxx
+++ b/include/svx/svdoedge.hxx
@@ -264,7 +264,7 @@ public:
 
     virtual void NbcSetSnapRect(const Rectangle& rRect) SAL_OVERRIDE;
     virtual void NbcMove(const Size& aSize) SAL_OVERRIDE;
-    virtual void NbcResize(const Point& rRefPnt, const Fraction& aXFact, const Fraction& aYFact) SAL_OVERRIDE;
+    virtual void NbcResize(const Point& rRefPnt, const boost::rational<long>& aXFact, const boost::rational<long>& aYFact) SAL_OVERRIDE;
 
     // #i54102# added rotate, mirrorn and shear support
     virtual void NbcRotate(const Point& rRef, long nWink, double sn, double cs) SAL_OVERRIDE;
diff --git a/include/svx/svdograf.hxx b/include/svx/svdograf.hxx
index e60060968fae..3179369711e6 100644
--- a/include/svx/svdograf.hxx
+++ b/include/svx/svdograf.hxx
@@ -162,7 +162,7 @@ public:
     virtual sal_uInt32 GetHdlCount() const SAL_OVERRIDE;
     virtual SdrHdl*         GetHdl(sal_uInt32 nHdlNum) const SAL_OVERRIDE;
 
-    virtual void            NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact) SAL_OVERRIDE;
+    virtual void            NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact) SAL_OVERRIDE;
     virtual void            NbcRotate(const Point& rRef, long nWink, double sn, double cs) SAL_OVERRIDE;
     virtual void            NbcMirror(const Point& rRef1, const Point& rRef2) SAL_OVERRIDE;
     virtual void            NbcShear (const Point& rRef, long nWink, double tn, bool bVShear) SAL_OVERRIDE;
diff --git a/include/svx/svdogrp.hxx b/include/svx/svdogrp.hxx
index 4a89e8f3a61d..4dc70df5b93d 100644
--- a/include/svx/svdogrp.hxx
+++ b/include/svx/svdogrp.hxx
@@ -85,7 +85,7 @@ public:
     virtual long GetShearAngle(bool bVertical = false) const SAL_OVERRIDE;
 
     virtual void Move(const Size& rSiz) SAL_OVERRIDE;
-    virtual void Resize(const Point& rRef, const Fraction& xFact, const Fraction& yFact, bool bUnsetRelative = true) SAL_OVERRIDE;
+    virtual void Resize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact, bool bUnsetRelative = true) SAL_OVERRIDE;
     virtual void Rotate(const Point& rRef, long nWink, double sn, double cs) SAL_OVERRIDE;
     virtual void Mirror(const Point& rRef1, const Point& rRef2) SAL_OVERRIDE;
     virtual void Shear(const Point& rRef, long nWink, double tn, bool bVShear) SAL_OVERRIDE;
@@ -95,7 +95,7 @@ public:
     virtual void SetLogicRect(const Rectangle& rRect) SAL_OVERRIDE;
 
     virtual void NbcMove(const Size& rSiz) SAL_OVERRIDE;
-    virtual void NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact) SAL_OVERRIDE;
+    virtual void NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact) SAL_OVERRIDE;
     virtual void NbcRotate(const Point& rRef, long nWink, double sn, double cs) SAL_OVERRIDE;
     virtual void NbcMirror(const Point& rRef1, const Point& rRef2) SAL_OVERRIDE;
     virtual void NbcShear(const Point& rRef, long nWink, double tn, bool bVShear) SAL_OVERRIDE;
diff --git a/include/svx/svdomeas.hxx b/include/svx/svdomeas.hxx
index 5cea5fe2de8b..f0cb6a7b624c 100644
--- a/include/svx/svdomeas.hxx
+++ b/include/svx/svdomeas.hxx
@@ -117,7 +117,7 @@ public:
     virtual Pointer GetCreatePointer() const SAL_OVERRIDE;
 
     virtual void NbcMove(const Size& rSiz) SAL_OVERRIDE;
-    virtual void NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact) SAL_OVERRIDE;
+    virtual void NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact) SAL_OVERRIDE;
     virtual void NbcRotate(const Point& rRef, long nWink, double sn, double cs) SAL_OVERRIDE;
     virtual void NbcMirror(const Point& rRef1, const Point& rRef2) SAL_OVERRIDE;
     virtual void NbcShear(const Point& rRef, long nWink, double tn, bool bVShear) SAL_OVERRIDE;
diff --git a/include/svx/svdoole2.hxx b/include/svx/svdoole2.hxx
index f14646b20428..a27a35e8d0eb 100644
--- a/include/svx/svdoole2.hxx
+++ b/include/svx/svdoole2.hxx
@@ -136,7 +136,7 @@ public:
     SdrOle2Obj& operator=(const SdrOle2Obj& rObj);
 
     virtual void NbcMove(const Size& rSize) SAL_OVERRIDE;
-    virtual void NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact) SAL_OVERRIDE;
+    virtual void NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact) SAL_OVERRIDE;
     virtual void NbcSetSnapRect(const Rectangle& rRect) SAL_OVERRIDE;
     virtual void NbcSetLogicRect(const Rectangle& rRect) SAL_OVERRIDE;
     virtual void SetGeoData(const SdrObjGeoData& rGeo) SAL_OVERRIDE;
@@ -167,7 +167,7 @@ public:
                           const OUString& aMediaType );
 
     ::com::sun::star::uno::Reference< ::com::sun::star::frame::XModel > GetParentXModel()  const;
-    bool CalculateNewScaling( Fraction& aScaleWidth, Fraction& aScaleHeight, Size& aObjAreaSize );
+    bool CalculateNewScaling( boost::rational<long>& aScaleWidth, boost::rational<long>& aScaleHeight, Size& aObjAreaSize );
     bool AddOwnLightClient();
 
     // handy to get the empty replacement graphic without accessing all the old stuff
diff --git a/include/svx/svdopath.hxx b/include/svx/svdopath.hxx
index b9cb18f73630..f3e4a46b9004 100644
--- a/include/svx/svdopath.hxx
+++ b/include/svx/svdopath.hxx
@@ -114,7 +114,7 @@ public:
     basegfx::B2DPolyPolygon getDragPolyPolygon(const SdrDragStat& rDrag) const;
 
     virtual void NbcMove(const Size& aSize) SAL_OVERRIDE;
-    virtual void NbcResize(const Point& rRefPnt, const Fraction& aXFact, const Fraction& aYFact) SAL_OVERRIDE;
+    virtual void NbcResize(const Point& rRefPnt, const boost::rational<long>& aXFact, const boost::rational<long>& aYFact) SAL_OVERRIDE;
     virtual void NbcRotate(const Point& rRefPnt, long nAngle, double fSin, double fCos) SAL_OVERRIDE;
     virtual void NbcMirror(const Point& rRefPnt1, const Point& rRefPnt2) SAL_OVERRIDE;
     virtual void NbcShear(const Point& rRefPnt, long nAngle, double fTan, bool bVShear) SAL_OVERRIDE;
diff --git a/include/svx/svdorect.hxx b/include/svx/svdorect.hxx
index afd1d57b08b4..db40274f3496 100644
--- a/include/svx/svdorect.hxx
+++ b/include/svx/svdorect.hxx
@@ -105,7 +105,7 @@ public:
     virtual Pointer GetCreatePointer() const SAL_OVERRIDE;
 
     virtual void NbcMove(const Size& rSiz) SAL_OVERRIDE;
-    virtual void NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact) SAL_OVERRIDE;
+    virtual void NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact) SAL_OVERRIDE;
     virtual void NbcRotate(const Point& rRef, long nWink, double sn, double cs) SAL_OVERRIDE;
     virtual void NbcMirror(const Point& rRef1, const Point& rRef2) SAL_OVERRIDE;
     virtual void NbcShear(const Point& rRef, long nWink, double tn, bool bVShear) SAL_OVERRIDE;
diff --git a/include/svx/svdotable.hxx b/include/svx/svdotable.hxx
index 2594a3544e3d..8b461b6c6aaa 100644
--- a/include/svx/svdotable.hxx
+++ b/include/svx/svdotable.hxx
@@ -241,7 +241,7 @@ public:
     virtual Pointer GetCreatePointer() const SAL_OVERRIDE;
 
     virtual void NbcMove(const Size& rSiz) SAL_OVERRIDE;
-    virtual void NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact) SAL_OVERRIDE;
+    virtual void NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact) SAL_OVERRIDE;
 
     virtual bool BegTextEdit(SdrOutliner& rOutl) SAL_OVERRIDE;
     virtual void EndTextEdit(SdrOutliner& rOutl) SAL_OVERRIDE;
diff --git a/include/svx/svdotext.hxx b/include/svx/svdotext.hxx
index a2b7b1f3e21c..94a032c2b585 100644
--- a/include/svx/svdotext.hxx
+++ b/include/svx/svdotext.hxx
@@ -264,7 +264,7 @@ private:
                                        Rectangle&       rTextRect,
                                        Rectangle&       rAnchorRect,
                                        Rectangle&       rPaintRect,
-                                       Fraction&        aFitXKorreg ) const;
+                                       boost::rational<long>&        aFitXKorreg ) const;
     void ImpAutoFitText( SdrOutliner& rOutliner ) const;
     static void ImpAutoFitText( SdrOutliner& rOutliner, const Size& rShapeSize, bool bIsVerticalWriting );
     SVX_DLLPRIVATE SdrObject* ImpConvertContainedTextToSdrPathObjs(bool bToPoly) const;
@@ -284,7 +284,7 @@ protected:
     SdrObject* ImpConvertMakeObj(const basegfx::B2DPolyPolygon& rPolyPolygon, bool bClosed, bool bBezier, bool bNoSetAttr = false) const;
     SdrObject* ImpConvertAddText(SdrObject* pObj, bool bBezier) const;
     void ImpSetTextStyleSheetListeners();
-    void ImpSetCharStretching(SdrOutliner& rOutliner, const Size& rTextSize, const Size& rShapeSize, Fraction& rFitXKorreg) const;
+    void ImpSetCharStretching(SdrOutliner& rOutliner, const Size& rTextSize, const Size& rShapeSize, boost::rational<long>& rFitXKorreg) const;
     void ImpJustifyRect(Rectangle& rRect) const;
     void ImpCheckShear();
     Rectangle ImpDragCalcRect(const SdrDragStat& rDrag) const;
@@ -465,7 +465,7 @@ public:
     virtual Pointer GetCreatePointer() const SAL_OVERRIDE;
 
     virtual void NbcMove(const Size& rSiz) SAL_OVERRIDE;
-    virtual void NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact) SAL_OVERRIDE;
+    virtual void NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact) SAL_OVERRIDE;
     virtual void NbcRotate(const Point& rRef, long nWink, double sn, double cs) SAL_OVERRIDE;
     virtual void NbcMirror(const Point& rRef1, const Point& rRef2) SAL_OVERRIDE;
     virtual void NbcShear(const Point& rRef, long nWink, double tn, bool bVShear) SAL_OVERRIDE;
diff --git a/include/svx/svdouno.hxx b/include/svx/svdouno.hxx
index 0a796da753ba..f22cb57f161f 100644
--- a/include/svx/svdouno.hxx
+++ b/include/svx/svdouno.hxx
@@ -80,7 +80,7 @@ public:
 
     virtual SdrUnoObj* Clone() const SAL_OVERRIDE;
     SdrUnoObj& operator= (const SdrUnoObj& rObj);
-    virtual void NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact) SAL_OVERRIDE;
+    virtual void NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact) SAL_OVERRIDE;
     virtual void NbcSetLayer(SdrLayerID nLayer) SAL_OVERRIDE;
 
     // SpecialDrag support
diff --git a/include/svx/svdovirt.hxx b/include/svx/svdovirt.hxx
index 766b8070c9ec..82c311ef9c5f 100644
--- a/include/svx/svdovirt.hxx
+++ b/include/svx/svdovirt.hxx
@@ -101,13 +101,13 @@ public:
     virtual basegfx::B2DPolyPolygon TakeCreatePoly(const SdrDragStat& rDrag) const SAL_OVERRIDE;
 
     virtual void NbcMove(const Size& rSiz) SAL_OVERRIDE;
-    virtual void NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact) SAL_OVERRIDE;
+    virtual void NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact) SAL_OVERRIDE;
     virtual void NbcRotate(const Point& rRef, long nWink, double sn, double cs) SAL_OVERRIDE;
     virtual void NbcMirror(const Point& rRef1, const Point& rRef2) SAL_OVERRIDE;
     virtual void NbcShear(const Point& rRef, long nWink, double tn, bool bVShear) SAL_OVERRIDE;
 
     virtual void Move(const Size& rSiz) SAL_OVERRIDE;
-    virtual void Resize(const Point& rRef, const Fraction& xFact, const Fraction& yFact, bool bUnsetRelative = true) SAL_OVERRIDE;
+    virtual void Resize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact, bool bUnsetRelative = true) SAL_OVERRIDE;
     virtual void Rotate(const Point& rRef, long nWink, double sn, double cs) SAL_OVERRIDE;
     virtual void Mirror(const Point& rRef1, const Point& rRef2) SAL_OVERRIDE;
     virtual void Shear(const Point& rRef, long nWink, double tn, bool bVShear) SAL_OVERRIDE;
diff --git a/include/svx/svdpoev.hxx b/include/svx/svdpoev.hxx
index ef73aa49b154..b0adf6d09f97 100644
--- a/include/svx/svdpoev.hxx
+++ b/include/svx/svdpoev.hxx
@@ -64,7 +64,7 @@ public:
     bool IsDeleteMarkedPointsPossible() const SAL_OVERRIDE;
 
     void MoveMarkedPoints(const Size& rSiz);
-    void ResizeMarkedPoints(const Point& rRef, const Fraction& xFact, const Fraction& yFact);
+    void ResizeMarkedPoints(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact);
     void RotateMarkedPoints(const Point& rRef, long nWink);
 
     // Hierbei entstehen eventuell beliebig viele neue Objekte:
diff --git a/include/svx/svdsnpv.hxx b/include/svx/svdsnpv.hxx
index 815656a77a39..c963d8031ad9 100644
--- a/include/svx/svdsnpv.hxx
+++ b/include/svx/svdsnpv.hxx
@@ -51,10 +51,10 @@ protected:
     class ImplHelpLineOverlay*              mpHelpLineOverlay;
 
     Size                        aMagnSiz;
-    Fraction                    aSnapWdtX;
-    Fraction                    aSnapWdtY;
+    boost::rational<long>       aSnapWdtX;
+    boost::rational<long>       aSnapWdtY;
 
-    sal_uInt16                      nMagnSizPix;
+    sal_uInt16                  nMagnSizPix;
     long                        nSnapAngle;
     long                        nEliminatePolyPointLimitAngle;
 
@@ -98,9 +98,9 @@ public:
     virtual void BrkAction() SAL_OVERRIDE; // f.abg.Klassen Actions z,B, Draggen abbrechen.
     virtual void TakeActionRect(Rectangle& rRect) const SAL_OVERRIDE;
 
-    void SetSnapGridWidth(const Fraction& rX, const Fraction& rY) { aSnapWdtX=rX; aSnapWdtY=rY; }
-    const Fraction& GetSnapGridWidthX() const { return aSnapWdtX; }
-    const Fraction& GetSnapGridWidthY() const { return aSnapWdtY; }
+    void SetSnapGridWidth(const boost::rational<long>& rX, const boost::rational<long>& rY) { aSnapWdtX=rX; aSnapWdtY=rY; }
+    const boost::rational<long>& GetSnapGridWidthX() const { return aSnapWdtX; }
+    const boost::rational<long>& GetSnapGridWidthY() const { return aSnapWdtY; }
 
     void SetSnapMagnetic(const Size& rSiz) { if (rSiz!=aMagnSiz) { aMagnSiz=rSiz; } }
     const Size& GetSnapMagnetic() const { return aMagnSiz; }
diff --git a/include/svx/svdtrans.hxx b/include/svx/svdtrans.hxx
index b287c23816f3..d29ab1f77e9a 100644
--- a/include/svx/svdtrans.hxx
+++ b/include/svx/svdtrans.hxx
@@ -22,7 +22,7 @@
 
 #include <rtl/ustring.hxx>
 #include <svx/svxdllapi.h>
-#include <tools/fract.hxx>
+#include <tools/rational.hxx>
 #include <tools/gen.hxx>
 #include <tools/poly.hxx>
 #include <vcl/field.hxx>
@@ -55,10 +55,10 @@ inline void MovePoly(Polygon& rPoly, const Size& S)      { rPoly.Move(S.Width(),
 inline void MovePoly(tools::PolyPolygon& rPoly, const Size& S)  { rPoly.Move(S.Width(),S.Height()); }
 void MoveXPoly(XPolygon& rPoly, const Size& S);
 
-SVX_DLLPUBLIC void ResizeRect(Rectangle& rRect, const Point& rRef, const Fraction& xFact, const Fraction& yFact, bool bNoJustify = false);
-inline void ResizePoint(Point& rPnt, const Point& rRef, Fraction xFact, Fraction yFact);
-void ResizePoly(Polygon& rPoly, const Point& rRef, const Fraction& xFact, const Fraction& yFact);
-void ResizeXPoly(XPolygon& rPoly, const Point& rRef, const Fraction& xFact, const Fraction& yFact);
+SVX_DLLPUBLIC void ResizeRect(Rectangle& rRect, const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact, bool bNoJustify = false);
+inline void ResizePoint(Point& rPnt, const Point& rRef, boost::rational<long> xFact, boost::rational<long> yFact);
+void ResizePoly(Polygon& rPoly, const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact);
+void ResizeXPoly(XPolygon& rPoly, const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact);
 
 inline void RotatePoint(Point& rPnt, const Point& rRef, double sn, double cs);
 SVX_DLLPUBLIC void RotatePoly(Polygon& rPoly, const Point& rRef, double sn, double cs);
@@ -102,12 +102,10 @@ void CrookStretchPoly(XPolyPolygon& rPoly, const Point& rCenter, const Point& rR
 /*  Inline                                                                                        */
 /**************************************************************************************************/
 
-inline void ResizePoint(Point& rPnt, const Point& rRef, Fraction xFact, Fraction yFact)
+inline void ResizePoint(Point& rPnt, const Point& rRef, boost::rational<long> xFact, boost::rational<long> yFact)
 {
-    if (xFact.GetDenominator()==0) xFact=Fraction(xFact.GetNumerator(),1); // DivZero abfangen
-    if (yFact.GetDenominator()==0) yFact=Fraction(yFact.GetNumerator(),1); // DivZero abfangen
-    rPnt.X()=rRef.X()+ Round(((double)(rPnt.X()-rRef.X())*xFact.GetNumerator())/xFact.GetDenominator());
-    rPnt.Y()=rRef.Y()+ Round(((double)(rPnt.Y()-rRef.Y())*yFact.GetNumerator())/yFact.GetDenominator());
+    rPnt.X()=rRef.X()+ Round(((double)(rPnt.X()-rRef.X())*xFact.numerator())/xFact.denominator());
+    rPnt.Y()=rRef.Y()+ Round(((double)(rPnt.Y()-rRef.Y())*yFact.numerator())/yFact.denominator());
 }
 
 inline void RotatePoint(Point& rPnt, const Point& rRef, double sn, double cs)
@@ -221,25 +219,25 @@ SVX_DLLPUBLIC void OrthoDistance4(const Point& rPt0, Point& rPt, bool bBigOrtho)
 // Rechnung und Zwischenergebnis sind BigInt.
 SVX_DLLPUBLIC long BigMulDiv(long nVal, long nMul, long nDiv);
 
-// Fehlerbehaftetes Kuerzen einer Fraction.
+// Fehlerbehaftetes Kuerzen einer boost::rational<long>.
 // nDigits gibt an, wieviele signifikante Stellen in
 // Zaehler/Nenner mindestens erhalten bleiben sollen.
-void Kuerzen(Fraction& rF, unsigned nDigits);
+void Kuerzen(boost::rational<long>& rF, unsigned nDigits);
 
 
 class FrPair {
-    Fraction aX;
-    Fraction aY;
+    boost::rational<long> aX;
+    boost::rational<long> aY;
 public:
     FrPair()                                          : aX(0,1),aY(0,1)             {}
-    FrPair(const Fraction& rBoth)                     : aX(rBoth),aY(rBoth)         {}
-    FrPair(const Fraction& rX, const Fraction& rY)    : aX(rX),aY(rY)               {}
+    FrPair(const boost::rational<long>& rBoth)        : aX(rBoth),aY(rBoth)         {}
+    FrPair(const boost::rational<long>& rX, const boost::rational<long>& rY)    : aX(rX),aY(rY)               {}
     FrPair(long nMul, long nDiv)                      : aX(nMul,nDiv),aY(nMul,nDiv) {}
     FrPair(long xMul, long xDiv, long yMul, long yDiv): aX(xMul,xDiv),aY(yMul,yDiv) {}
-    const Fraction& X() const { return aX; }
-    const Fraction& Y() const { return aY; }
-    Fraction& X()             { return aX; }
-    Fraction& Y()             { return aY; }
+    const boost::rational<long>&  X() const { return aX; }
+    const boost::rational<long>&  Y() const { return aY; }
+    boost::rational<long>&  X()             { return aX; }
+    boost::rational<long>&  Y()             { return aY; }
 };
 
 // Fuer die Umrechnung von Masseinheiten
@@ -265,7 +263,7 @@ inline bool IsInch(FieldUnit eU) {
 }
 
 class SVX_DLLPUBLIC SdrFormatter {
-    Fraction  aScale;
+    boost::rational<long>  aScale;
     long      nMul_;
     long      nDiv_;
     short     nKomma_;
diff --git a/include/svx/sxfiitm.hxx b/include/svx/sxfiitm.hxx
index 570ebd02aa8c..6aa43ac3532d 100644
--- a/include/svx/sxfiitm.hxx
+++ b/include/svx/sxfiitm.hxx
@@ -20,26 +20,26 @@
 #define INCLUDED_SVX_SXFIITM_HXX
 
 #include <svl/poolitem.hxx>
-#include <tools/fract.hxx>
+#include <tools/rational.hxx>
 
 /*************************************************************************/
 /* FractionItem                                                          */
 /*************************************************************************/
 
 class SdrFractionItem: public SfxPoolItem {
-    Fraction nValue;
+    boost::rational<long> nValue;
 public:
     TYPEINFO_VISIBILITY( SVX_DLLPUBLIC );
     SdrFractionItem(sal_uInt16 nId=0): SfxPoolItem(nId) {}
-    SdrFractionItem(sal_uInt16 nId, const Fraction& rVal): SfxPoolItem(nId), nValue(rVal) {}
+    SdrFractionItem(sal_uInt16 nId, const boost::rational<long>& rVal): SfxPoolItem(nId), nValue(rVal) {}
     SdrFractionItem(sal_uInt16 nId, SvStream& rIn);
     virtual bool             operator==(const SfxPoolItem&) const SAL_OVERRIDE;
     virtual bool GetPresentation(SfxItemPresentation ePresentation, SfxMapUnit eCoreMetric, SfxMapUnit ePresentationMetric, OUString &rText, const IntlWrapper * = 0) const SAL_OVERRIDE;
     virtual SfxPoolItem*     Create(SvStream&, sal_uInt16 nVer) const SAL_OVERRIDE;
     virtual SvStream&        Store(SvStream&, sal_uInt16 nItemVers) const SAL_OVERRIDE;
     virtual SfxPoolItem*     Clone(SfxItemPool *pPool=NULL) const SAL_OVERRIDE;
-            const Fraction&  GetValue() const { return nValue; }
-            void             SetValue(const Fraction& rVal) { nValue = rVal; }
+            const boost::rational<long>&  GetValue() const { return nValue; }
+            void             SetValue(const boost::rational<long>& rVal) { nValue = rVal; }
 };
 
 
diff --git a/include/svx/sxsiitm.hxx b/include/svx/sxsiitm.hxx
index 29fdf624dd81..8a7625a576ad 100644
--- a/include/svx/sxsiitm.hxx
+++ b/include/svx/sxsiitm.hxx
@@ -24,8 +24,8 @@
 class SdrScaleItem: public SdrFractionItem {
 public:
     TYPEINFO_OVERRIDE();
-    SdrScaleItem(sal_uInt16 nId=0): SdrFractionItem(nId,Fraction(1,1)) {}
-    SdrScaleItem(sal_uInt16 nId, const Fraction& rVal): SdrFractionItem(nId,rVal) {}
+    SdrScaleItem(sal_uInt16 nId=0): SdrFractionItem(nId, boost::rational<long>(1,1) ) {}
+    SdrScaleItem(sal_uInt16 nId, const boost::rational<long>& rVal): SdrFractionItem(nId,rVal) {}
     SdrScaleItem(sal_uInt16 nId, SvStream& rIn): SdrFractionItem(nId,rIn) {}
     virtual bool GetPresentation(SfxItemPresentation ePresentation, SfxMapUnit eCoreMetric, SfxMapUnit ePresentationMetric, OUString &rText, const IntlWrapper * = 0) const SAL_OVERRIDE;
     virtual SfxPoolItem*     Create(SvStream&, sal_uInt16 nVer) const SAL_OVERRIDE;
diff --git a/include/tools/bigint.hxx b/include/tools/bigint.hxx
index 33d19bc67c0c..c4c1c6d7b9fe 100644
--- a/include/tools/bigint.hxx
+++ b/include/tools/bigint.hxx
@@ -28,8 +28,6 @@ class SvStream;
 
 #define MAX_DIGITS 8
 
-class Fraction;
-
 class TOOLS_DLLPUBLIC SAL_WARN_UNUSED BigInt
 {
 private:
@@ -144,8 +142,6 @@ public:
     TOOLS_DLLPUBLIC friend          bool operator> ( const BigInt& rVal1, const BigInt& rVal2 );
     friend inline   bool operator<=( const BigInt& rVal1, const BigInt& rVal2 );
     friend inline   bool operator>=( const BigInt& rVal1, const BigInt& rVal2 );
-
-    friend class Fraction;
 };
 
 inline BigInt::operator short() const
diff --git a/include/tools/fract.hxx b/include/tools/fract.hxx
deleted file mode 100644
index 10e810ecb4ca..000000000000
--- a/include/tools/fract.hxx
+++ /dev/null
@@ -1,142 +0,0 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
-/*
- * This file is part of the LibreOffice project.
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * This file incorporates work covered by the following license notice:
- *
- *   Licensed to the Apache Software Foundation (ASF) under one or more
- *   contributor license agreements. See the NOTICE file distributed
- *   with this work for additional information regarding copyright
- *   ownership. The ASF licenses this file to you under the Apache
- *   License, Version 2.0 (the "License"); you may not use this file
- *   except in compliance with the License. You may obtain a copy of
- *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
- */
-#ifndef INCLUDED_TOOLS_FRACT_HXX
-#define INCLUDED_TOOLS_FRACT_HXX
-
-#include <tools/toolsdllapi.h>
-
-class SvStream;
-
-class TOOLS_DLLPUBLIC SAL_WARN_UNUSED Fraction
-{
-private:
-    long            nNumerator;
-    long            nDenominator;
-
-public:
-                    Fraction() { nNumerator = 0; nDenominator = 1; }
-                    Fraction( const Fraction & rFrac );
-                    Fraction( long nNum, long nDen=1 );
-                    Fraction( double dVal );
-
-    bool            IsValid() const;
-
-    long            GetNumerator() const { return nNumerator; }
-    long            GetDenominator() const { return nDenominator; }
-
-    operator        long() const;
-    operator        double() const;
-
-    Fraction&       operator=( const Fraction& rfrFrac );
-
-    Fraction&       operator+=( const Fraction& rfrFrac );
-    Fraction&       operator-=( const Fraction& rfrFrac );
-    Fraction&       operator*=( const Fraction& rfrFrac );
-    Fraction&       operator/=( const Fraction& rfrFrac );
-
-    void            ReduceInaccurate( unsigned nSignificantBits );
-
-    friend inline   Fraction operator+( const Fraction& rVal1, const Fraction& rVal2 );
-    friend inline   Fraction operator-( const Fraction& rVal1, const Fraction& rVal2 );
-    friend inline   Fraction operator*( const Fraction& rVal1, const Fraction& rVal2 );
-    friend inline   Fraction operator/( const Fraction& rVal1, const Fraction& rVal2 );
-
-    TOOLS_DLLPUBLIC friend          bool operator==( const Fraction& rVal1, const Fraction& rVal2 );
-    friend inline   bool operator!=( const Fraction& rVal1, const Fraction& rVal2 );
-    TOOLS_DLLPUBLIC friend          bool operator< ( const Fraction& rVal1, const Fraction& rVal2 );
-    TOOLS_DLLPUBLIC friend          bool operator> ( const Fraction& rVal1, const Fraction& rVal2 );
-    friend inline   bool operator<=( const Fraction& rVal1, const Fraction& rVal2 );
-    friend inline   bool operator>=( const Fraction& rVal1, const Fraction& rVal2 );
-
-    TOOLS_DLLPUBLIC friend SvStream& ReadFraction( SvStream& rIStream, Fraction& rFract );
-    TOOLS_DLLPUBLIC friend SvStream& WriteFraction( SvStream& rOStream, const Fraction& rFract );
-};
-
-inline Fraction::Fraction( const Fraction& rFrac )
-{
-    nNumerator   = rFrac.nNumerator;
-    nDenominator = rFrac.nDenominator;
-}
-
-inline Fraction& Fraction::operator=( const Fraction& rFrac )
-{
-    nNumerator   = rFrac.nNumerator;
-    nDenominator = rFrac.nDenominator;
-    return *this;
-}
-
-inline bool Fraction::IsValid() const
-{
-    return (nDenominator > 0);
-}
-
-inline Fraction::operator long() const
-{
-    if ( nDenominator > 0 )
-        return (nNumerator / nDenominator);
-    else
-        return 0;
-}
-
-inline Fraction operator+( const Fraction& rVal1, const Fraction& rVal2 )
-{
-    Fraction aErg( rVal1 );
-    aErg += rVal2;
-    return aErg;
-}
-
-inline Fraction operator-( const Fraction& rVal1, const Fraction& rVal2 )
-{
-    Fraction aErg( rVal1 );
-    aErg -= rVal2;
-    return aErg;
-}
-
-inline Fraction operator*( const Fraction& rVal1, const Fraction& rVal2 )
-{
-    Fraction aErg( rVal1 );
-    aErg *= rVal2;
-    return aErg;
-}
-
-inline Fraction operator/( const Fraction& rVal1, const Fraction& rVal2 )
-{
-    Fraction aErg( rVal1 );
-    aErg /= rVal2;
-    return aErg;
-}
-
-inline bool operator !=( const Fraction& rVal1, const Fraction& rVal2 )
-{
-    return !(rVal1 == rVal2);
-}
-
-inline bool operator <=( const Fraction& rVal1, const Fraction& rVal2 )
-{
-    return !(rVal1 > rVal2);
-}
-
-inline bool operator >=( const Fraction& rVal1, const Fraction& rVal2 )
-{
-    return !(rVal1 < rVal2);
-}
-
-#endif
-
-/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/tools/rational.hxx b/include/tools/rational.hxx
new file mode 100644
index 000000000000..0eeb1032a83c
--- /dev/null
+++ b/include/tools/rational.hxx
@@ -0,0 +1,25 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+#ifndef INCLUDED_TOOLS_RATIONAL_HXX
+#define INCLUDED_TOOLS_RATIONAL_HXX
+
+#include <boost/rational.hpp>
+#include <tools/toolsdllapi.h>
+
+class SvStream;
+
+TOOLS_DLLPUBLIC boost::rational<long> rational_FromDouble(double dVal);
+TOOLS_DLLPUBLIC void rational_ReduceInaccurate(boost::rational<long>& rRational, unsigned nSignificantBits);
+TOOLS_DLLPUBLIC SvStream& ReadFraction(SvStream& rIStream, boost::rational<long>& rRational);
+TOOLS_DLLPUBLIC SvStream& WriteFraction(SvStream& rOStream, const boost::rational<long>& rRational);
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/vcl/gdimtf.hxx b/include/vcl/gdimtf.hxx
index 5a80213a7550..128895fc0675 100644
--- a/include/vcl/gdimtf.hxx
+++ b/include/vcl/gdimtf.hxx
@@ -136,7 +136,7 @@ public:
     // additional Move method getting specifics how to handle MapMode( MAP_PIXEL )
     void            Move( long nX, long nY, long nDPIX, long nDPIY );
     void            Scale( double fScaleX, double fScaleY );
-    void            Scale( const Fraction& rScaleX, const Fraction& rScaleY );
+    void            Scale( const boost::rational<long>& rScaleX, const boost::rational<long>& rScaleY );
     void            Rotate( long nAngle10 );
     void            Clip( const Rectangle& );
     /* get the bound rect of the contained actions
diff --git a/include/vcl/mapmod.hxx b/include/vcl/mapmod.hxx
index 10e06d2e9ca3..211727f39660 100644
--- a/include/vcl/mapmod.hxx
+++ b/include/vcl/mapmod.hxx
@@ -21,7 +21,7 @@
 #define INCLUDED_VCL_MAPMOD_HXX
 
 #include <tools/gen.hxx>
-#include <tools/fract.hxx>
+#include <tools/rational.hxx>
 #include <tools/solar.h>
 #include <vcl/dllapi.h>
 #include <tools/resid.hxx>
@@ -44,8 +44,8 @@ private:
     sal_uLong           mnRefCount;
     MapUnit         meUnit;
     Point           maOrigin;
-    Fraction        maScaleX;
-    Fraction        maScaleY;
+    boost::rational<long>        maScaleX;
+    boost::rational<long>        maScaleY;
     bool            mbSimple;
 
     friend SvStream& ReadImplMapMode( SvStream& rIStm, ImplMapMode& rMapMode );
@@ -75,7 +75,7 @@ public:
                     MapMode( const MapMode& rMapMode );
                     MapMode( MapUnit eUnit );
                     MapMode( MapUnit eUnit, const Point& rLogicOrg,
-                             const Fraction& rScaleX, const Fraction& rScaleY );
+                             const boost::rational<long>& rScaleX, const boost::rational<long>& rScaleY );
                     ~MapMode();
 
     void            SetMapUnit( MapUnit eUnit );
@@ -86,11 +86,11 @@ public:
     const Point&    GetOrigin() const
                         { return mpImplMapMode->maOrigin; }
 
-    void            SetScaleX( const Fraction& rScaleX );
-    const Fraction& GetScaleX() const
+    void            SetScaleX( const boost::rational<long>& rScaleX );
+    const boost::rational<long>&  GetScaleX() const
                         { return mpImplMapMode->maScaleX; }
-    void            SetScaleY( const Fraction& rScaleY );
-    const Fraction& GetScaleY() const
+    void            SetScaleY( const boost::rational<long>& rScaleY );
+    const boost::rational<long>&  GetScaleY() const
                         { return mpImplMapMode->maScaleY; }
 
     MapMode&        operator=( const MapMode& rMapMode );
diff --git a/include/vcl/virdev.hxx b/include/vcl/virdev.hxx
index 624cb2f0f31a..4886410bd2aa 100644
--- a/include/vcl/virdev.hxx
+++ b/include/vcl/virdev.hxx
@@ -124,7 +124,7 @@ public:
 
     bool                SetOutputSizePixel( const Size& rNewSize, bool bErase = true );
     bool                SetOutputSizePixelScaleOffsetAndBuffer( const Size& rNewSize,
-                                                                const Fraction& rScale,
+                                                                const boost::rational<long>& rScale,
                                                                 const Point& rNewOffset,
                                                                 const basebmp::RawMemorySharedArray &pBuffer,
                                                                 const bool bTopDown = false );
diff --git a/include/vcl/window.hxx b/include/vcl/window.hxx
index decc15c1c88e..14c23bdfbcff 100644
--- a/include/vcl/window.hxx
+++ b/include/vcl/window.hxx
@@ -1009,8 +1009,8 @@ public:
     void                                SetCursor( vcl::Cursor* pCursor );
     vcl::Cursor*                        GetCursor() const;
 
-    void                                SetZoom( const Fraction& rZoom );
-    const Fraction&                     GetZoom() const;
+    void                                SetZoom( const boost::rational<long>& rZoom );
+    const boost::rational<long>&        GetZoom() const;
     bool                                IsZoom() const;
     long                                CalcZoom( long n ) const;