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>

39 files changed, 156 insertions, 158 deletions

diff --git a/sd/source/core/drawdoc.cxx b/sd/source/core/drawdoc.cxx
index 772364fdb345..39cded4e3e74 100644
--- a/sd/source/core/drawdoc.cxx
+++ b/sd/source/core/drawdoc.cxx
@@ -192,12 +192,12 @@ SdDrawDocument::SdDrawDocument(DocumentType eType, SfxObjectShell* pDrDocSh)
 
     // Allow UI scale only for draw documents.
     if( eType == DOCUMENT_TYPE_DRAW )
-        SetUIUnit( (FieldUnit)pOptions->GetMetric(), Fraction( nX, nY ) );  // user-defined
+        SetUIUnit( (FieldUnit)pOptions->GetMetric(), boost::rational<long>( nX, nY ) );  // user-defined
     else
-        SetUIUnit( (FieldUnit)pOptions->GetMetric(), Fraction( 1, 1 ) );    // default
+        SetUIUnit( (FieldUnit)pOptions->GetMetric(), boost::rational<long>( 1, 1 ) );    // default
 
     SetScaleUnit(MAP_100TH_MM);
-    SetScaleFraction(Fraction(1, 1));
+    SetScaleFraction(boost::rational<long>(1, 1));
     SetDefaultFontHeight(847);     // 24p
 
     pItemPool->SetDefaultMetric(SFX_MAPUNIT_100TH_MM);
diff --git a/sd/source/core/sdpage.cxx b/sd/source/core/sdpage.cxx
index 75e41fb8b085..1e96f6f0aa68 100644
--- a/sd/source/core/sdpage.cxx
+++ b/sd/source/core/sdpage.cxx
@@ -1843,8 +1843,8 @@ void SdPage::ScaleObjects(const Size& rNewPageSize, const Rectangle& rNewBorderR
     long nOldWidth  = GetWdt() - GetLftBorder() - GetRgtBorder();
     long nOldHeight = GetHgt() - GetUppBorder() - GetLwrBorder();
 
-    Fraction aFractX = Fraction(aNewPageSize.Width(), nOldWidth);
-    Fraction aFractY = Fraction(aNewPageSize.Height(), nOldHeight);
+    boost::rational<long> aFractX( aNewPageSize.Width(), nOldWidth );
+    boost::rational<long> aFractY( aNewPageSize.Height(), nOldHeight );
 
     const size_t nObjCnt = (mbScaleObjects ? GetObjCount() : 0);
 
@@ -1902,14 +1902,14 @@ void SdPage::ScaleObjects(const Size& rNewPageSize, const Rectangle& rNewBorderR
 
                                 SvxFontHeightItem& rOldHgt = (SvxFontHeightItem&) rSet.Get(EE_CHAR_FONTHEIGHT);
                                 sal_uLong nFontHeight = rOldHgt.GetHeight();
-                                nFontHeight = long(nFontHeight * (double) aFractY);
+                                nFontHeight = long(nFontHeight * boost::rational_cast<double>(aFractY));
                                 rSet.Put(SvxFontHeightItem(nFontHeight, 100, EE_CHAR_FONTHEIGHT));
 
                                 if( SfxItemState::DEFAULT == rSet.GetItemState( EE_CHAR_FONTHEIGHT_CJK ) )
                                 {
                                     rOldHgt = (SvxFontHeightItem&) rSet.Get(EE_CHAR_FONTHEIGHT_CJK);
                                     nFontHeight = rOldHgt.GetHeight();
-                                    nFontHeight = long(nFontHeight * (double) aFractY);
+                                    nFontHeight = long(nFontHeight * boost::rational_cast<double>(aFractY));
                                     rSet.Put(SvxFontHeightItem(nFontHeight, 100, EE_CHAR_FONTHEIGHT_CJK));
                                 }
 
@@ -1917,7 +1917,7 @@ void SdPage::ScaleObjects(const Size& rNewPageSize, const Rectangle& rNewBorderR
                                 {
                                     rOldHgt = (SvxFontHeightItem&) rSet.Get(EE_CHAR_FONTHEIGHT_CTL);
                                     nFontHeight = rOldHgt.GetHeight();
-                                    nFontHeight = long(nFontHeight * (double) aFractY);
+                                    nFontHeight = long(nFontHeight * boost::rational_cast<double>(aFractY));
                                     rSet.Put(SvxFontHeightItem(nFontHeight, 100, EE_CHAR_FONTHEIGHT_CTL));
                                 }
 
@@ -1941,14 +1941,14 @@ void SdPage::ScaleObjects(const Size& rNewPageSize, const Rectangle& rNewBorderR
 
                                     SvxFontHeightItem& rOldHgt = (SvxFontHeightItem&) aTempSet.Get(EE_CHAR_FONTHEIGHT);
                                     sal_uLong nFontHeight = rOldHgt.GetHeight();
-                                    nFontHeight = long(nFontHeight * (double) aFractY);
+                                    nFontHeight = long(nFontHeight * boost::rational_cast<double>(aFractY));
                                     aTempSet.Put(SvxFontHeightItem(nFontHeight, 100, EE_CHAR_FONTHEIGHT));
 
                                     if( SfxItemState::DEFAULT == aTempSet.GetItemState( EE_CHAR_FONTHEIGHT_CJK ) )
                                     {
                                         rOldHgt = (SvxFontHeightItem&) aTempSet.Get(EE_CHAR_FONTHEIGHT_CJK);
                                         nFontHeight = rOldHgt.GetHeight();
-                                        nFontHeight = long(nFontHeight * (double) aFractY);
+                                        nFontHeight = long(nFontHeight * boost::rational_cast<double>(aFractY));
                                         aTempSet.Put(SvxFontHeightItem(nFontHeight, 100, EE_CHAR_FONTHEIGHT_CJK));
                                     }
 
@@ -1956,7 +1956,7 @@ void SdPage::ScaleObjects(const Size& rNewPageSize, const Rectangle& rNewBorderR
                                     {
                                         rOldHgt = (SvxFontHeightItem&) aTempSet.Get(EE_CHAR_FONTHEIGHT_CTL);
                                         nFontHeight = rOldHgt.GetHeight();
-                                        nFontHeight = long(nFontHeight * (double) aFractY);
+                                        nFontHeight = long(nFontHeight * boost::rational_cast<double>(aFractY));
                                         aTempSet.Put(SvxFontHeightItem(nFontHeight, 100, EE_CHAR_FONTHEIGHT_CTL));
                                     }
 
@@ -2018,7 +2018,7 @@ void SdPage::ScaleObjects(const Size& rNewPageSize, const Rectangle& rNewBorderR
 
                         // use more modern method to scale the text height
                         sal_uInt32 nFontHeight = ((SvxFontHeightItem&)pObj->GetMergedItem(nWhich)).GetHeight();
-                        sal_uInt32 nNewFontHeight = sal_uInt32((double)nFontHeight * (double)aFractY);
+                        sal_uInt32 nNewFontHeight = sal_uInt32((double)nFontHeight * boost::rational_cast<double>(aFractY));
 
                         pObj->SetMergedItem(SvxFontHeightItem(nNewFontHeight, 100, nWhich));
                     }
@@ -2034,8 +2034,8 @@ void SdPage::ScaleObjects(const Size& rNewPageSize, const Rectangle& rNewBorderR
 
                 // corrected scaling; only distances may be scaled
                 // use aTopLeft as original TopLeft
-                aNewPos.X() = long((aTopLeft.X() - GetLftBorder()) * (double)aFractX) + nLeft;
-                aNewPos.Y() = long((aTopLeft.Y() - GetUppBorder()) * (double)aFractY) + nUpper;
+                aNewPos.X() = long((aTopLeft.X() - GetLftBorder()) * boost::rational_cast<double>(aFractX)) + nLeft;
+                aNewPos.Y() = long((aTopLeft.Y() - GetUppBorder()) * boost::rational_cast<double>(aFractY)) + nUpper;
 
                 Size aVec(aNewPos.X() - aTopLeft.X(), aNewPos.Y() - aTopLeft.Y());
 
diff --git a/sd/source/filter/eppt/eppt.cxx b/sd/source/filter/eppt/eppt.cxx
index 082b67a89655..d05ed1149d3b 100644
--- a/sd/source/filter/eppt/eppt.cxx
+++ b/sd/source/filter/eppt/eppt.cxx
@@ -1095,7 +1095,7 @@ void ImplExportComments( uno::Reference< drawing::XDrawPage > xPage, SvMemoryStr
                 uno::Reference< office::XAnnotation > xAnnotation( xAnnotationEnumeration->nextElement() );
 
                 geometry::RealPoint2D aRealPoint2D( xAnnotation->getPosition() );
-                MapMode aMapDest( MAP_INCH, Point(), Fraction( 1, 576 ), Fraction( 1, 576 ) );
+                MapMode aMapDest( MAP_INCH, Point(), boost::rational<long>( 1, 576 ), boost::rational<long>( 1, 576 ) );
                 Point aPoint( OutputDevice::LogicToLogic( Point( static_cast< sal_Int32 >( aRealPoint2D.X * 100.0 ),
                     static_cast< sal_Int32 >( aRealPoint2D.Y * 100.0 ) ), MAP_100TH_MM, aMapDest ) );
 
diff --git a/sd/source/filter/eppt/epptbase.hxx b/sd/source/filter/eppt/epptbase.hxx
index 00eb6a1a3de8..9529d58a3ea1 100644
--- a/sd/source/filter/eppt/epptbase.hxx
+++ b/sd/source/filter/eppt/epptbase.hxx
@@ -347,7 +347,7 @@ protected:
     sal_uInt32          mnPages;            ///< number of Slides ( w/o master pages & notes & handout )
     sal_uInt32          mnMasterPages;
 
-    Fraction                        maFraction;
+    boost::rational<long>           maFraction;
     MapMode                         maMapModeSrc;
     MapMode                         maMapModeDest;
     ::com::sun::star::awt::Size     maDestPageSize;
diff --git a/sd/source/filter/eppt/pptx-text.cxx b/sd/source/filter/eppt/pptx-text.cxx
index b2c25b55eb27..8e56d350e884 100644
--- a/sd/source/filter/eppt/pptx-text.cxx
+++ b/sd/source/filter/eppt/pptx-text.cxx
@@ -652,7 +652,7 @@ ParagraphObj::ParagraphObj(const ::com::sun::star::uno::Reference< ::com::sun::s
     , SOParagraph()
     , mvPortions()
     , maMapModeSrc(MAP_100TH_MM)
-    , maMapModeDest(MAP_INCH, Point(), Fraction( 1, 576 ), Fraction( 1, 576 ))
+    , maMapModeDest(MAP_INCH, Point(), boost::rational<long>( 1, 576 ), boost::rational<long>( 1, 576 ))
     , mnTextSize(0)
     , mbFirstParagraph(false)
     , mbLastParagraph(false)
@@ -682,7 +682,7 @@ ParagraphObj::ParagraphObj(::com::sun::star::uno::Reference< ::com::sun::star::t
     , SOParagraph()
     , mvPortions()
     , maMapModeSrc(MAP_100TH_MM)
-    , maMapModeDest(MAP_INCH, Point(), Fraction( 1, 576 ), Fraction( 1, 576 ))
+    , maMapModeDest(MAP_INCH, Point(), boost::rational<long>( 1, 576 ), boost::rational<long>( 1, 576 ))
     , mnTextSize(0)
     , mbIsBullet(false)
     , mbFirstParagraph( aParaFlags.bFirstParagraph )
diff --git a/sd/source/ui/animations/motionpathtag.cxx b/sd/source/ui/animations/motionpathtag.cxx
index e5676c4d105f..a93091e8c56c 100644
--- a/sd/source/ui/animations/motionpathtag.cxx
+++ b/sd/source/ui/animations/motionpathtag.cxx
@@ -181,7 +181,7 @@ bool PathDragResize::EndSdrDrag(bool /*bCopy*/)
         {
             const Point aRef( DragStat().Ref1() );
             basegfx::B2DHomMatrix aTrans(basegfx::tools::createTranslateB2DHomMatrix(-aRef.X(), -aRef.Y()));
-            aTrans.scale(double(aXFact), double(aYFact));
+            aTrans.scale(boost::rational_cast<double>(aXFact), boost::rational_cast<double>(aYFact));
             aTrans.translate(aRef.X(), aRef.Y());
             basegfx::B2DPolyPolygon aDragPoly(pPathObj->GetPathPoly());
             aDragPoly.transform(aTrans);
diff --git a/sd/source/ui/annotations/annotationwindow.cxx b/sd/source/ui/annotations/annotationwindow.cxx
index 47063aad5fc8..19125096c0e1 100644
--- a/sd/source/ui/annotations/annotationwindow.cxx
+++ b/sd/source/ui/annotations/annotationwindow.cxx
@@ -376,7 +376,7 @@ void AnnotationWindow::Rescale()
     {
         vcl::Font aFont( mpMeta->GetSettings().GetStyleSettings().GetFieldFont() );
         sal_Int32 nHeight = aFont.GetHeight();
-        nHeight = nHeight * aMode.GetScaleY().GetNumerator() / aMode.GetScaleY().GetDenominator();
+        nHeight = nHeight * aMode.GetScaleY().numerator() / aMode.GetScaleY().denominator();
         aFont.SetHeight( nHeight );
         mpMeta->SetControlFont( aFont );
     }
diff --git a/sd/source/ui/app/optsitem.cxx b/sd/source/ui/app/optsitem.cxx
index dca7ba140995..73db89fa54b9 100644
--- a/sd/source/ui/app/optsitem.cxx
+++ b/sd/source/ui/app/optsitem.cxx
@@ -1126,8 +1126,8 @@ SdOptionsGridItem::SdOptionsGridItem( sal_uInt16 _nWhich, SdOptions* pOpts, ::sd
         SetFldDrawY( pView->GetGridCoarse().Height() );
         SetFldDivisionX( pView->GetGridFine().Width() ? ( GetFldDrawX() / pView->GetGridFine().Width() - 1 ) : 0 );
         SetFldDivisionY( pView->GetGridFine().Height() ? ( GetFldDrawY() / pView->GetGridFine().Height() - 1 ) : 0 );
-        SetFldSnapX( long(pView->GetSnapGridWidthX()) );
-        SetFldSnapY( long(pView->GetSnapGridWidthY()) );
+        SetFldSnapX( boost::rational_cast<long>(pView->GetSnapGridWidthX()) );
+        SetFldSnapY( boost::rational_cast<long>(pView->GetSnapGridWidthY()) );
         SetUseGridSnap( pView->IsGridSnap() );
         SetGridVisible( pView->IsGridVisible() );
     }
diff --git a/sd/source/ui/app/sdmod2.cxx b/sd/source/ui/app/sdmod2.cxx
index 2c83b2d5102e..8db6f17d7f52 100644
--- a/sd/source/ui/app/sdmod2.cxx
+++ b/sd/source/ui/app/sdmod2.cxx
@@ -502,9 +502,9 @@ SfxItemSet*  SdModule::CreateItemSet( sal_uInt16 nSlot )
 
     if(pFrameView)
     {
-        const Fraction& rFraction =  pDoc->GetUIScale();
-        nX=rFraction.GetNumerator();
-        nY=rFraction.GetDenominator();
+        const boost::rational<long>& rFraction =  pDoc->GetUIScale();
+        nX=rFraction.numerator();
+        nY=rFraction.denominator();
     }
     else
     {
@@ -595,7 +595,7 @@ void SdModule::ApplyItemSet( sal_uInt16 nSlot, const SfxItemSet& rSet )
             // Apply to document only if doc type match
             if( pDocSh && pDoc && eDocType == pDoc->GetDocumentType() )
             {
-                pDoc->SetUIScale( Fraction( nX, nY ) );
+                pDoc->SetUIScale( boost::rational<long>( nX, nY ) );
                 if( pViewShell )
                     pViewShell->SetRuler( pViewShell->HasRuler() );
             }
diff --git a/sd/source/ui/dlg/animobjs.cxx b/sd/source/ui/dlg/animobjs.cxx
index 019103ef4efb..2e9764b49efa 100644
--- a/sd/source/ui/dlg/animobjs.cxx
+++ b/sd/source/ui/dlg/animobjs.cxx
@@ -89,8 +89,8 @@ void SdDisplay::Paint( const Rectangle& )
     Point aPt;
     Size aSize = GetOutputSize();
     Size aBmpSize = aBitmapEx.GetBitmap().GetSizePixel();
-    aBmpSize.Width() = (long) ( (double) aBmpSize.Width() * (double) aScale );
-    aBmpSize.Height() = (long) ( (double) aBmpSize.Height() * (double) aScale );
+    aBmpSize.Width() = (long) ( (double) aBmpSize.Width() * boost::rational_cast<double>(this->aScale) );
+    aBmpSize.Height() = (long) ( (double) aBmpSize.Height() * boost::rational_cast<double>(this->aScale) );
 
     if( aBmpSize.Width() < aSize.Width() )
         aPt.X() = ( aSize.Width() - aBmpSize.Width() ) / 2;
@@ -100,7 +100,7 @@ void SdDisplay::Paint( const Rectangle& )
     aBitmapEx.Draw( this, aPt, aBmpSize );
 }
 
-void SdDisplay::SetScale( const Fraction& rFrac )
+void SdDisplay::SetScale( const boost::rational<long>& rFrac )
 {
     aScale = rFrac;
 }
@@ -468,7 +468,7 @@ IMPL_LINK( AnimationWindow, ClickRemoveBitmapHdl, void *, pBtn )
     }
 
     // calculate and set zoom for DisplayWin
-    Fraction aFrac( GetScale() );
+    boost::rational<long> aFrac( GetScale() );
     aCtlDisplay.SetScale( aFrac );
 
     UpdateControl();
@@ -643,9 +643,9 @@ void AnimationWindow::WaitInEffect( sal_uLong nMilliSeconds, sal_uLong nTime,
     }
 }
 
-Fraction AnimationWindow::GetScale()
+boost::rational<long> AnimationWindow::GetScale()
 {
-    Fraction aFrac;
+    boost::rational<long> aFrac;
     size_t const nCount = m_FrameList.size();
     if (nCount > 0)
     {
@@ -662,7 +662,7 @@ Fraction AnimationWindow::GetScale()
         aBmpSize.Width() += 10;
         aBmpSize.Height() += 10;
 
-        aFrac = Fraction( std::min( (double)aDisplaySize.Width() / (double)aBmpSize.Width(),
+        aFrac = rational_FromDouble( std::min( (double)aDisplaySize.Width() / (double)aBmpSize.Width(),
                              (double)aDisplaySize.Height() / (double)aBmpSize.Height() ) );
     }
     return( aFrac );
@@ -733,7 +733,7 @@ void AnimationWindow::Resize()
         aGrpAnimation.SetPosPixel( aGrpAnimation.GetPosPixel() + aPt );
 
         // calculate and set zoom for DisplayWin
-        Fraction aFrac( GetScale() );
+        boost::rational<long> aFrac( GetScale() );
         aCtlDisplay.SetScale( aFrac );
 
         aBtnFirst.Show();
@@ -963,7 +963,7 @@ void AnimationWindow::AddObj (::sd::View& rView )
         }
 
         // calculate and set zoom for DisplayWin
-        Fraction aFrac( GetScale() );
+        boost::rational<long> aFrac( GetScale() );
         aCtlDisplay.SetScale( aFrac );
 
         UpdateControl();
diff --git a/sd/source/ui/dlg/copydlg.cxx b/sd/source/ui/dlg/copydlg.cxx
index 56e865215205..c55915884881 100644
--- a/sd/source/ui/dlg/copydlg.cxx
+++ b/sd/source/ui/dlg/copydlg.cxx
@@ -128,12 +128,12 @@ void CopyDlg::Reset()
         long nMoveX = 500L;
         if( SfxItemState::SET == mrOutAttrs.GetItemState( ATTR_COPY_MOVE_X, true, &pPoolItem ) )
             nMoveX = ( ( ( const SfxInt32Item* ) pPoolItem )->GetValue() );
-        SetMetricValue( *m_pMtrFldMoveX, Fraction(nMoveX) / maUIScale, SFX_MAPUNIT_100TH_MM);
+        SetMetricValue( *m_pMtrFldMoveX, boost::rational_cast<long>(nMoveX / maUIScale), SFX_MAPUNIT_100TH_MM);
 
         long nMoveY = 500L;
         if( SfxItemState::SET == mrOutAttrs.GetItemState( ATTR_COPY_MOVE_Y, true, &pPoolItem ) )
             nMoveY = ( ( ( const SfxInt32Item* ) pPoolItem )->GetValue() );
-        SetMetricValue( *m_pMtrFldMoveY, Fraction(nMoveY) / maUIScale, SFX_MAPUNIT_100TH_MM);
+        SetMetricValue( *m_pMtrFldMoveY, boost::rational_cast<long>(nMoveY / maUIScale), SFX_MAPUNIT_100TH_MM);
 
         if( SfxItemState::SET == mrOutAttrs.GetItemState( ATTR_COPY_ANGLE, true, &pPoolItem ) )
             m_pMtrFldAngle->SetValue( ( ( const SfxInt32Item* ) pPoolItem )->GetValue() );
@@ -143,12 +143,12 @@ void CopyDlg::Reset()
         long nWidth = 0L;
         if( SfxItemState::SET == mrOutAttrs.GetItemState( ATTR_COPY_WIDTH, true, &pPoolItem ) )
             nWidth = ( ( ( const SfxInt32Item* ) pPoolItem )->GetValue() );
-        SetMetricValue( *m_pMtrFldWidth, Fraction(nWidth) / maUIScale, SFX_MAPUNIT_100TH_MM);
+        SetMetricValue( *m_pMtrFldWidth, boost::rational_cast<long>(nWidth / maUIScale), SFX_MAPUNIT_100TH_MM);
 
         long nHeight = 0L;
         if( SfxItemState::SET == mrOutAttrs.GetItemState( ATTR_COPY_HEIGHT, true, &pPoolItem ) )
             nHeight = ( ( ( const SfxInt32Item* ) pPoolItem )->GetValue() );
-        SetMetricValue( *m_pMtrFldHeight, Fraction(nHeight) / maUIScale, SFX_MAPUNIT_100TH_MM);
+        SetMetricValue( *m_pMtrFldHeight, boost::rational_cast<long>(nHeight / maUIScale), SFX_MAPUNIT_100TH_MM);
 
         if( SfxItemState::SET == mrOutAttrs.GetItemState( ATTR_COPY_START_COLOR, true, &pPoolItem ) )
         {
@@ -199,10 +199,10 @@ void CopyDlg::Reset()
  */
 void CopyDlg::GetAttr( SfxItemSet& rOutAttrs )
 {
-    long nMoveX = Fraction( GetCoreValue( *m_pMtrFldMoveX, SFX_MAPUNIT_100TH_MM) ) * maUIScale;
-    long nMoveY = Fraction( GetCoreValue( *m_pMtrFldMoveY, SFX_MAPUNIT_100TH_MM) ) * maUIScale;
-    long nHeight = Fraction( GetCoreValue( *m_pMtrFldHeight, SFX_MAPUNIT_100TH_MM) ) * maUIScale;
-    long nWidth  = Fraction( GetCoreValue( *m_pMtrFldWidth, SFX_MAPUNIT_100TH_MM) ) * maUIScale;
+    long nMoveX = boost::rational_cast<long>(GetCoreValue(*m_pMtrFldMoveX, SFX_MAPUNIT_100TH_MM) * maUIScale);
+    long nMoveY = boost::rational_cast<long>(GetCoreValue(*m_pMtrFldMoveY, SFX_MAPUNIT_100TH_MM) * maUIScale);
+    long nHeight = boost::rational_cast<long>(GetCoreValue(*m_pMtrFldHeight, SFX_MAPUNIT_100TH_MM) * maUIScale);
+    long nWidth  = boost::rational_cast<long>(GetCoreValue(*m_pMtrFldWidth, SFX_MAPUNIT_100TH_MM) * maUIScale);
 
     rOutAttrs.Put( SfxUInt16Item( ATTR_COPY_NUMBER, (sal_uInt16) m_pNumFldCopies->GetValue() ) );
     rOutAttrs.Put( SfxInt32Item( ATTR_COPY_MOVE_X, nMoveX ) );
@@ -249,10 +249,8 @@ IMPL_LINK_NOARG(CopyDlg, SetViewData)
 {
     Rectangle aRect = mpView->GetAllMarkedRect();
 
-    SetMetricValue( *m_pMtrFldMoveX, Fraction( aRect.GetWidth() ) /
-                                    maUIScale, SFX_MAPUNIT_100TH_MM);
-    SetMetricValue( *m_pMtrFldMoveY, Fraction( aRect.GetHeight() ) /
-                                    maUIScale, SFX_MAPUNIT_100TH_MM);
+    SetMetricValue( *m_pMtrFldMoveX, boost::rational_cast<long>(aRect.GetWidth() / maUIScale), SFX_MAPUNIT_100TH_MM);
+    SetMetricValue( *m_pMtrFldMoveY, boost::rational_cast<long>(aRect.GetHeight() / maUIScale), SFX_MAPUNIT_100TH_MM);
 
     // sets color attribute
     const SfxPoolItem*  pPoolItem = NULL;
@@ -273,13 +271,13 @@ IMPL_LINK_NOARG(CopyDlg, SetDefault)
     m_pNumFldCopies->SetValue( 1L );
 
     long nValue = 500L;
-    SetMetricValue( *m_pMtrFldMoveX, Fraction(nValue) / maUIScale, SFX_MAPUNIT_100TH_MM);
-    SetMetricValue( *m_pMtrFldMoveY, Fraction(nValue) / maUIScale, SFX_MAPUNIT_100TH_MM);
+    SetMetricValue( *m_pMtrFldMoveX, boost::rational_cast<long>(nValue / maUIScale), SFX_MAPUNIT_100TH_MM);
+    SetMetricValue( *m_pMtrFldMoveY, boost::rational_cast<long>(nValue / maUIScale), SFX_MAPUNIT_100TH_MM);
 
     nValue = 0L;
     m_pMtrFldAngle->SetValue( nValue );
-    SetMetricValue( *m_pMtrFldWidth, Fraction(nValue) / maUIScale, SFX_MAPUNIT_100TH_MM);
-    SetMetricValue( *m_pMtrFldHeight, Fraction(nValue) / maUIScale, SFX_MAPUNIT_100TH_MM);
+    SetMetricValue( *m_pMtrFldWidth, boost::rational_cast<long>(nValue / maUIScale), SFX_MAPUNIT_100TH_MM);
+    SetMetricValue( *m_pMtrFldHeight, boost::rational_cast<long>(nValue / maUIScale), SFX_MAPUNIT_100TH_MM);
 
     // set color attribute
     const SfxPoolItem*  pPoolItem = NULL;
diff --git a/sd/source/ui/dlg/dlgsnap.cxx b/sd/source/ui/dlg/dlgsnap.cxx
index ee8548f07c6a..b4565165da7f 100644
--- a/sd/source/ui/dlg/dlgsnap.cxx
+++ b/sd/source/ui/dlg/dlgsnap.cxx
@@ -78,33 +78,33 @@ SdSnapLineDlg::SdSnapLineDlg(
     SetMetricValue( *m_pMtrFldX, aLeftTop.X(), ePoolUnit );
 
     long nValue = static_cast<long>(m_pMtrFldX->GetValue());
-    nValue = Fraction( nValue ) / aUIScale;
+    nValue = boost::rational_cast<long>(nValue / aUIScale);
     m_pMtrFldX->SetMin( nValue );
     m_pMtrFldX->SetFirst( nValue );
 
     SetMetricValue( *m_pMtrFldX, aRightBottom.X(), ePoolUnit );
     nValue = static_cast<long>(m_pMtrFldX->GetValue());
-    nValue = Fraction( nValue ) / aUIScale;
+    nValue = boost::rational_cast<long>(nValue / aUIScale);
     m_pMtrFldX->SetMax( nValue );
     m_pMtrFldX->SetLast( nValue );
 
     SetMetricValue( *m_pMtrFldY, aLeftTop.Y(), ePoolUnit );
     nValue = static_cast<long>(m_pMtrFldY->GetValue());
-    nValue = Fraction( nValue ) / aUIScale;
+    nValue = boost::rational_cast<long>(nValue / aUIScale);
     m_pMtrFldY->SetMin( nValue );
     m_pMtrFldY->SetFirst( nValue );
 
     SetMetricValue( *m_pMtrFldY, aRightBottom.Y(), ePoolUnit );
     nValue = static_cast<long>(m_pMtrFldY->GetValue());
-    nValue = Fraction( nValue ) / aUIScale;
+    nValue = boost::rational_cast<long>(nValue / aUIScale);
     m_pMtrFldY->SetMax( nValue );
     m_pMtrFldY->SetLast( nValue );
 
     // set values
     nXValue = ((const SfxInt32Item&) rInAttrs.Get(ATTR_SNAPLINE_X)).GetValue();
     nYValue = ((const SfxInt32Item&) rInAttrs.Get(ATTR_SNAPLINE_Y)).GetValue();
-    nXValue = Fraction(nXValue) / aUIScale;
-    nYValue = Fraction(nYValue) / aUIScale;
+    nXValue = boost::rational_cast<long>(nXValue / aUIScale);
+    nYValue = boost::rational_cast<long>(nYValue / aUIScale);
     SetMetricValue( *m_pMtrFldX, nXValue, SFX_MAPUNIT_100TH_MM);
     SetMetricValue( *m_pMtrFldY, nYValue, SFX_MAPUNIT_100TH_MM);
 
@@ -135,8 +135,8 @@ void SdSnapLineDlg::GetAttr(SfxItemSet& rOutAttrs)
     else if ( m_pRbVert->IsChecked() ) eKind = SK_VERTICAL;
     else                            eKind = SK_POINT;
 
-    nXValue = Fraction( GetCoreValue( *m_pMtrFldX, SFX_MAPUNIT_100TH_MM) ) * aUIScale;
-    nYValue = Fraction( GetCoreValue( *m_pMtrFldY, SFX_MAPUNIT_100TH_MM) ) * aUIScale;
+    nXValue = boost::rational_cast<long>(GetCoreValue(*m_pMtrFldX, SFX_MAPUNIT_100TH_MM) * aUIScale);
+    nYValue = boost::rational_cast<long>(GetCoreValue(*m_pMtrFldY, SFX_MAPUNIT_100TH_MM) * aUIScale);
 
     rOutAttrs.Put(SfxAllEnumItem(ATTR_SNAPLINE_KIND, (sal_uInt16)eKind));
     rOutAttrs.Put(SfxUInt32Item(ATTR_SNAPLINE_X, nXValue));
diff --git a/sd/source/ui/dlg/docprev.cxx b/sd/source/ui/dlg/docprev.cxx
index e6501b00e7b7..a6f2fa7787ae 100644
--- a/sd/source/ui/dlg/docprev.cxx
+++ b/sd/source/ui/dlg/docprev.cxx
@@ -237,7 +237,7 @@ void SdDocPreviewWin::updateViewSettings()
 
             VirtualDevice       aVDev;
 
-            const Fraction      aFrac( pDoc->GetScaleFraction() );
+            const boost::rational<long>      aFrac( pDoc->GetScaleFraction() );
             const MapMode       aMap( pDoc->GetScaleUnit(), Point(), aFrac, aFrac );
 
             aVDev.SetMapMode( aMap );
diff --git a/sd/source/ui/dlg/vectdlg.cxx b/sd/source/ui/dlg/vectdlg.cxx
index ee7c184e5b37..ecb5a2966cbc 100644
--- a/sd/source/ui/dlg/vectdlg.cxx
+++ b/sd/source/ui/dlg/vectdlg.cxx
@@ -113,7 +113,7 @@ void SdVectorizeDlg::InitPreviewBmp()
     m_pBmpWin->SetGraphic( aPreviewBmp );
 }
 
-Bitmap SdVectorizeDlg::GetPreparedBitmap( Bitmap& rBmp, Fraction& rScale )
+Bitmap SdVectorizeDlg::GetPreparedBitmap( Bitmap& rBmp, boost::rational<long>& rScale )
 {
     Bitmap      aNew( rBmp );
     const Size  aSizePix( aNew.GetSizePixel() );
@@ -121,11 +121,11 @@ Bitmap SdVectorizeDlg::GetPreparedBitmap( Bitmap& rBmp, Fraction& rScale )
     if( aSizePix.Width() > VECTORIZE_MAX_EXTENT || aSizePix.Height() > VECTORIZE_MAX_EXTENT )
     {
         const Rectangle aRect( GetRect( Size( VECTORIZE_MAX_EXTENT, VECTORIZE_MAX_EXTENT ), aSizePix ) );
-        rScale = Fraction( aSizePix.Width(), aRect.GetWidth() );
+        rScale = boost::rational<long>( aSizePix.Width(), aRect.GetWidth() );
         aNew.Scale( aRect.GetSize() );
     }
     else
-        rScale = Fraction( 1, 1 );
+        rScale = boost::rational<long>( 1, 1 );
 
     aNew.ReduceColors( (sal_uInt16) m_pNmLayers->GetValue(), BMP_REDUCE_SIMPLE );
 
@@ -137,7 +137,7 @@ void SdVectorizeDlg::Calculate( Bitmap& rBmp, GDIMetaFile& rMtf )
     mpDocSh->SetWaitCursor( true );
     m_pPrgs->SetValue( 0 );
 
-    Fraction    aScale;
+    boost::rational<long>    aScale;
     Bitmap      aTmp( GetPreparedBitmap( rBmp, aScale ) );
 
     if( !!aTmp )
diff --git a/sd/source/ui/docshell/docshel2.cxx b/sd/source/ui/docshell/docshel2.cxx
index c0bf1fcf8b34..923e70b407f2 100644
--- a/sd/source/ui/docshell/docshel2.cxx
+++ b/sd/source/ui/docshell/docshel2.cxx
@@ -199,7 +199,7 @@ Bitmap DrawDocShell::GetPagePreviewBitmap(SdPage* pPage, sal_uInt16 nMaxEdgePixe
 
     const Size  aPixSize( aVDev.LogicToPixel( aSize ) );
     const sal_uLong nMaxEdgePix = std::max( aPixSize.Width(), aPixSize.Height() );
-    Fraction    aFrac( nMaxEdgePixel, nMaxEdgePix );
+    boost::rational<long>    aFrac( nMaxEdgePixel, nMaxEdgePix );
 
     aMapMode.SetScaleX( aFrac );
     aMapMode.SetScaleY( aFrac );
@@ -207,7 +207,7 @@ Bitmap DrawDocShell::GetPagePreviewBitmap(SdPage* pPage, sal_uInt16 nMaxEdgePixe
     aVDev.SetOutputSize( aSize );
 
     // that we also get the dark lines at the right and bottom page margin
-    aFrac = Fraction( nMaxEdgePixel - 1, nMaxEdgePix );
+    aFrac = boost::rational<long>( nMaxEdgePixel - 1, nMaxEdgePix );
     aMapMode.SetScaleX( aFrac );
     aMapMode.SetScaleY( aFrac );
     aVDev.SetMapMode( aMapMode );
diff --git a/sd/source/ui/docshell/sdclient.cxx b/sd/source/ui/docshell/sdclient.cxx
index 768ec5d94a72..0976289fb672 100644
--- a/sd/source/ui/docshell/sdclient.cxx
+++ b/sd/source/ui/docshell/sdclient.cxx
@@ -169,8 +169,8 @@ void Client::ViewChanged()
             Size aSize = pSdrOle2Obj->GetOrigObjSize( &aMap100 );
 
             aVisArea.SetSize( aSize );
-            Size                aScaledSize( static_cast< long >( GetScaleWidth() * Fraction( aVisArea.GetWidth() ) ),
-                                                static_cast< long >( GetScaleHeight() * Fraction( aVisArea.GetHeight() ) ) );
+            Size                aScaledSize( boost::rational_cast<long>(GetScaleWidth() * aVisArea.GetWidth()),
+                                                boost::rational_cast<long>(GetScaleHeight() * aVisArea.GetHeight()) );
 
             // react to the change if the difference is bigger than one pixel
             Size aPixelDiff =
diff --git a/sd/source/ui/func/fucopy.cxx b/sd/source/ui/func/fucopy.cxx
index 03477a588620..e1d0b57f76b2 100644
--- a/sd/source/ui/func/fucopy.cxx
+++ b/sd/source/ui/func/fucopy.cxx
@@ -235,8 +235,8 @@ void FuCopy::DoExecute( SfxRequest& rReq )
                 }
             }
 
-            Fraction aWidth( aRect.Right() - aRect.Left() + lWidth, aRect.Right() - aRect.Left() );
-            Fraction aHeight( aRect.Bottom() - aRect.Top() + lHeight, aRect.Bottom() - aRect.Top() );
+            boost::rational<long> aWidth( aRect.Right() - aRect.Left() + lWidth, aRect.Right() - aRect.Left() );
+            boost::rational<long> aHeight( aRect.Bottom() - aRect.Top() + lHeight, aRect.Bottom() - aRect.Top() );
 
             if( mpView->IsResizeAllowed() )
                 mpView->ResizeAllMarked( aRect.TopLeft(), aWidth, aHeight );
diff --git a/sd/source/ui/inc/DrawViewShell.hxx b/sd/source/ui/inc/DrawViewShell.hxx
index 42fbabe36d6a..8ffedbdf7569 100644
--- a/sd/source/ui/inc/DrawViewShell.hxx
+++ b/sd/source/ui/inc/DrawViewShell.hxx
@@ -408,7 +408,7 @@ protected:
     virtual SvxRuler* CreateVRuler(::sd::Window* pWin) SAL_OVERRIDE;
     virtual void    UpdateHRuler() SAL_OVERRIDE;
     virtual void    UpdateVRuler() SAL_OVERRIDE;
-    virtual void    SetZoomFactor(const Fraction& rZoomX, const Fraction& rZoomY) SAL_OVERRIDE;
+    virtual void    SetZoomFactor(const boost::rational<long>& rZoomX, const boost::rational<long>& rZoomY) SAL_OVERRIDE;
 
     void            SetupPage( Size &rSize, long nLeft, long nRight, long nUpper, long nLower,
                                bool bSize, bool bMargin, bool bScaleAll );
diff --git a/sd/source/ui/inc/ViewShell.hxx b/sd/source/ui/inc/ViewShell.hxx
index 74e2bd254227..18e3cd43be3c 100644
--- a/sd/source/ui/inc/ViewShell.hxx
+++ b/sd/source/ui/inc/ViewShell.hxx
@@ -537,8 +537,8 @@ protected:
     virtual void Activate(bool IsMDIActivate) SAL_OVERRIDE;
     virtual void Deactivate(bool IsMDIActivate) SAL_OVERRIDE;
 
-    virtual void SetZoomFactor( const Fraction &rZoomX,
-                                const Fraction &rZoomY );
+    virtual void SetZoomFactor( const boost::rational<long>& rZoomX,
+                                const boost::rational<long>& rZoomY );
 
     /**
         This must be called after the ctor, but before anything else.
diff --git a/sd/source/ui/inc/ViewShellBase.hxx b/sd/source/ui/inc/ViewShellBase.hxx
index af33977a8e33..c744a3d3a085 100644
--- a/sd/source/ui/inc/ViewShellBase.hxx
+++ b/sd/source/ui/inc/ViewShellBase.hxx
@@ -161,8 +161,8 @@ public:
     virtual void Activate (bool IsMDIActivate) SAL_OVERRIDE;
     virtual void Deactivate (bool IsMDIActivate) SAL_OVERRIDE;
     virtual void SetZoomFactor (
-        const Fraction &rZoomX,
-        const Fraction &rZoomY) SAL_OVERRIDE;
+        const boost::rational<long>& rZoomX,
+        const boost::rational<long>& rZoomY) SAL_OVERRIDE;
     virtual bool PrepareClose (bool bUI = true) SAL_OVERRIDE;
     virtual void WriteUserData (OUString&, bool bBrowse = false) SAL_OVERRIDE;
     virtual void ReadUserData (const OUString&, bool bBrowse = false) SAL_OVERRIDE;
diff --git a/sd/source/ui/inc/animobjs.hxx b/sd/source/ui/inc/animobjs.hxx
index 9e720ad04260..2178f829108c 100644
--- a/sd/source/ui/inc/animobjs.hxx
+++ b/sd/source/ui/inc/animobjs.hxx
@@ -61,7 +61,7 @@ class SdDisplay : public Control
 {
 private:
     BitmapEx    aBitmapEx;
-    Fraction    aScale;
+    boost::rational<long>    aScale;
 
 public:
     SdDisplay( vcl::Window* pWin, SdResId Id );
@@ -70,7 +70,7 @@ public:
     virtual void Paint( const Rectangle& rRect ) SAL_OVERRIDE;
 
     void    SetBitmapEx( BitmapEx* pBmpEx );
-    void    SetScale( const Fraction& rFrac );
+    void    SetScale( const boost::rational<long>& rFrac );
 
     virtual void DataChanged( const DataChangedEvent& rDCEvt ) SAL_OVERRIDE;
 };
@@ -155,7 +155,7 @@ private:
     void            ResetAttrs();
     void            WaitInEffect( sal_uLong nMilliSeconds, sal_uLong nTime,
                                         SfxProgress* pStbMgr ) const;
-    Fraction        GetScale();
+    boost::rational<long>        GetScale();
 };
 
 /**
diff --git a/sd/source/ui/inc/copydlg.hxx b/sd/source/ui/inc/copydlg.hxx
index 7994e0c1c08b..f62bf44f3b39 100644
--- a/sd/source/ui/inc/copydlg.hxx
+++ b/sd/source/ui/inc/copydlg.hxx
@@ -64,7 +64,7 @@ private:
 
     const SfxItemSet&   mrOutAttrs;
     XColorListRef       mpColorList;
-    Fraction            maUIScale;
+    boost::rational<long>            maUIScale;
     ::sd::View*         mpView;
 
     DECL_LINK( SelectColorHdl, void * );
diff --git a/sd/source/ui/inc/dlgsnap.hxx b/sd/source/ui/inc/dlgsnap.hxx
index ab431c856be3..befaa538ceba 100644
--- a/sd/source/ui/inc/dlgsnap.hxx
+++ b/sd/source/ui/inc/dlgsnap.hxx
@@ -25,7 +25,7 @@
 #include <vcl/field.hxx>
 #include <vcl/group.hxx>
 #include <vcl/layout.hxx>
-#include <tools/fract.hxx>
+#include <tools/rational.hxx>
 #include <vcl/dialog.hxx>
 #include "sdenumdef.hxx"
 /************************************************************************/
@@ -53,7 +53,7 @@ private:
     long                nXValue;
     long                nYValue;
     FieldUnit           eUIUnit;
-    Fraction            aUIScale;
+    boost::rational<long>            aUIScale;
 
     DECL_LINK( ClickHdl, Button * );
 
diff --git a/sd/source/ui/inc/vectdlg.hxx b/sd/source/ui/inc/vectdlg.hxx
index 153343dae933..6107c7ed99a1 100644
--- a/sd/source/ui/inc/vectdlg.hxx
+++ b/sd/source/ui/inc/vectdlg.hxx
@@ -67,7 +67,7 @@ class SdVectorizeDlg : public ModalDialog
     void                UpdatePreviewMtf();
 
     Rectangle           GetRect( const Size& rDispSize, const Size& rBmpSize ) const;
-    Bitmap              GetPreparedBitmap( Bitmap& rBmp, Fraction& rScale );
+    Bitmap              GetPreparedBitmap( Bitmap& rBmp, boost::rational<long>& rScale );
     void                Calculate( Bitmap& rBmp, GDIMetaFile& rMtf );
     void                AddTile( BitmapReadAccess* pRAcc, GDIMetaFile& rMtf,
                                  long nPosX, long nPosY, long nWidth, long nHeight );
diff --git a/sd/source/ui/slidesorter/inc/view/SlsLayouter.hxx b/sd/source/ui/slidesorter/inc/view/SlsLayouter.hxx
index 381bac6868f7..b6555cc5ac89 100644
--- a/sd/source/ui/slidesorter/inc/view/SlsLayouter.hxx
+++ b/sd/source/ui/slidesorter/inc/view/SlsLayouter.hxx
@@ -24,7 +24,7 @@
 #include "view/SlsPageObjectLayouter.hxx"
 #include "view/SlsTheme.hxx"
 #include <sal/types.h>
-#include <tools/fract.hxx>
+#include <tools/rational.hxx>
 #include <vcl/mapmod.hxx>
 #include <vector>
 #include <utility>
@@ -114,7 +114,7 @@ public:
     /** Return the scale factor that can be set at the map mode of the
         output window.
     */
-    Fraction GetScaleFactor (void) const;
+    boost::rational<long> GetScaleFactor (void) const;
 
     Size GetPageObjectSize (void) const;
 
diff --git a/sd/source/ui/tools/PreviewRenderer.cxx b/sd/source/ui/tools/PreviewRenderer.cxx
index 4de09a10c1a6..3113433ff3b9 100644
--- a/sd/source/ui/tools/PreviewRenderer.cxx
+++ b/sd/source/ui/tools/PreviewRenderer.cxx
@@ -383,9 +383,9 @@ void PreviewRenderer::SetupOutputSize (
     {
         const sal_Int32 nFrameWidth (mbHasFrame ? snFrameWidth : 0);
         aMapMode.SetScaleX(
-            Fraction(rFramePixelSize.Width()-2*nFrameWidth-1, aPageModelSize.Width()));
+            boost::rational<long>(rFramePixelSize.Width()-2*nFrameWidth-1, aPageModelSize.Width()));
         aMapMode.SetScaleY(
-            Fraction(rFramePixelSize.Height()-2*nFrameWidth-1, aPageModelSize.Height()));
+            boost::rational<long>(rFramePixelSize.Height()-2*nFrameWidth-1, aPageModelSize.Height()));
         aMapMode.SetOrigin(mpPreviewDevice->PixelToLogic(Point(nFrameWidth,nFrameWidth),aMapMode));
     }
     else
diff --git a/sd/source/ui/unoidl/UnoDocumentSettings.cxx b/sd/source/ui/unoidl/UnoDocumentSettings.cxx
index 1a9c67f62b68..fc81e5383bb2 100644
--- a/sd/source/ui/unoidl/UnoDocumentSettings.cxx
+++ b/sd/source/ui/unoidl/UnoDocumentSettings.cxx
@@ -677,7 +677,7 @@ throw (UnknownPropertyException, PropertyVetoException,
                     sal_Int32 nValue = 0;
                     if( *pValues >>= nValue )
                     {
-                        Fraction aFract( nValue, pDoc->GetUIScale().GetDenominator() );
+                        boost::rational<long> aFract( nValue, pDoc->GetUIScale().denominator() );
                         pDoc->SetUIScale( aFract );
                         bOk = true;
                         bChanged = true;
@@ -689,7 +689,7 @@ throw (UnknownPropertyException, PropertyVetoException,
                     sal_Int32 nValue = 0;
                     if( *pValues >>= nValue )
                     {
-                        Fraction aFract( pDoc->GetUIScale().GetNumerator(), nValue );
+                        boost::rational<long> aFract( pDoc->GetUIScale().numerator(), nValue );
                         pDoc->SetUIScale( aFract );
                         bOk = true;
                         bChanged = true;
@@ -1091,10 +1091,10 @@ throw (UnknownPropertyException, WrappedTargetException, RuntimeException)
                 }
                 break;
             case HANDLE_SCALE_NUM:
-                *pValue <<= (sal_Int32)pDoc->GetUIScale().GetNumerator();
+                *pValue <<= (sal_Int32)pDoc->GetUIScale().numerator();
                 break;
             case HANDLE_SCALE_DOM:
-                *pValue <<= (sal_Int32)pDoc->GetUIScale().GetDenominator();
+                *pValue <<= (sal_Int32)pDoc->GetUIScale().denominator();
                 break;
             case HANDLE_TABSTOP:
                 *pValue <<= (sal_Int32)pDoc->GetDefaultTabulator();
diff --git a/sd/source/ui/unoidl/unomodel.cxx b/sd/source/ui/unoidl/unomodel.cxx
index 291733159378..16fe7c1eca44 100644
--- a/sd/source/ui/unoidl/unomodel.cxx
+++ b/sd/source/ui/unoidl/unomodel.cxx
@@ -2226,10 +2226,10 @@ void SdXImpressDocument::paintTile( VirtualDevice& rDevice,
     // that VirtualDevices use a DPI of 96.
     // We specifically calculate these scales first as we're still
     // in TWIPs, and might as well minimise the number of conversions.
-    Fraction scaleX = Fraction( nOutputWidth, 96 ) * Fraction(1440L) /
-                                Fraction( nTileWidth);
-    Fraction scaleY = Fraction( nOutputHeight, 96 ) * Fraction(1440L) /
-                                Fraction( nTileHeight);
+    boost::rational<long> scaleX = boost::rational<long>( nOutputWidth, 96 ) * boost::rational<long>(1440L) /
+                                boost::rational<long>( nTileWidth );
+    boost::rational<long> scaleY = boost::rational<long>( nOutputHeight, 96 ) * boost::rational<long>(1440L) /
+                                boost::rational<long>( nTileHeight );
 
     // svx seems to be the only component that works natively in
     // 100th mm rather than TWIP. It makes most sense just to
diff --git a/sd/source/ui/view/DocumentRenderer.cxx b/sd/source/ui/view/DocumentRenderer.cxx
index f61224fa1aef..5af3c448ed7d 100644
--- a/sd/source/ui/view/DocumentRenderer.cxx
+++ b/sd/source/ui/view/DocumentRenderer.cxx
@@ -1608,8 +1608,8 @@ private:
     {
         MapMode aMap (rInfo.maMap);
         Point aPageOfs (rInfo.mpPrinter->GetPageOffset() );
-        aMap.SetScaleX(Fraction(1,2));
-        aMap.SetScaleY(Fraction(1,2));
+        aMap.SetScaleX(boost::rational<long>(1,2));
+        aMap.SetScaleY(boost::rational<long>(1,2));
         mpPrinter->SetMapMode(aMap);
 
         Rectangle aOutRect(aPageOfs, rInfo.mpPrinter->GetOutputSize());
@@ -1803,11 +1803,11 @@ private:
             const double fHorz = (double) aPrintSize.Width()    / aPageSize.Width();
             const double fVert = (double) aPrintSize.Height() / aPageSize.Height();
 
-            Fraction    aFract;
+            boost::rational<long>    aFract;
             if ( fHorz < fVert )
-                aFract = Fraction(aPrintSize.Width(), aPageSize.Width());
+                aFract = boost::rational<long>(aPrintSize.Width(), aPageSize.Width());
             else
-                aFract = Fraction(aPrintSize.Height(), aPageSize.Height());
+                aFract = boost::rational<long>(aPrintSize.Height(), aPageSize.Height());
 
             aMap.SetScaleX(aFract);
             aMap.SetScaleY(aFract);
@@ -1931,11 +1931,11 @@ private:
                 const double fHorz ((double) rInfo.maPrintSize.Width()  / aPageSize.Width());
                 const double fVert ((double) rInfo.maPrintSize.Height() / aPageSize.Height());
 
-                Fraction aFract;
+                boost::rational<long> aFract;
                 if (fHorz < fVert)
-                    aFract = Fraction(rInfo.maPrintSize.Width(), aPageSize.Width());
+                    aFract = boost::rational<long>(rInfo.maPrintSize.Width(), aPageSize.Width());
                 else
-                    aFract = Fraction(rInfo.maPrintSize.Height(), aPageSize.Height());
+                    aFract = boost::rational<long>(rInfo.maPrintSize.Height(), aPageSize.Height());
 
                 aMap.SetScaleX(aFract);
                 aMap.SetScaleY(aFract);
@@ -2013,8 +2013,8 @@ private:
         }
 
         MapMode aMap (rInfo.maMap);
-        aMap.SetScaleX( Fraction( aPageSize_2.Width(), rInfo.maPageSize.Width() ) );
-        aMap.SetScaleY( Fraction( aPageSize_2.Height(), rInfo.maPageSize.Height() ) );
+        aMap.SetScaleX( boost::rational<long>( aPageSize_2.Width(), rInfo.maPageSize.Width() ) );
+        aMap.SetScaleY( boost::rational<long>( aPageSize_2.Height(), rInfo.maPageSize.Height() ) );
 
         // calculate adjusted print size
         const Size aAdjustedPrintSize (OutputDevice::LogicToLogic(
diff --git a/sd/source/ui/view/ViewShellBase.cxx b/sd/source/ui/view/ViewShellBase.cxx
index 723a6d814ed7..a5d7527c4c00 100644
--- a/sd/source/ui/view/ViewShellBase.cxx
+++ b/sd/source/ui/view/ViewShellBase.cxx
@@ -453,8 +453,8 @@ void ViewShellBase::InnerResizePixel (const Point& rOrigin, const Size &rSize)
         aSize.Height() -= (aBorder.Top() + aBorder.Bottom());
         Size aObjSizePixel = mpImpl->mpViewWindow->LogicToPixel( aObjSize, MAP_100TH_MM );
         SfxViewShell::SetZoomFactor(
-            Fraction( aSize.Width(), std::max( aObjSizePixel.Width(), (long int)1 ) ),
-            Fraction( aSize.Height(), std::max( aObjSizePixel.Height(), (long int)1) ) );
+            boost::rational<long>( aSize.Width(), std::max( aObjSizePixel.Width(), (long int)1 ) ),
+            boost::rational<long>( aSize.Height(), std::max( aObjSizePixel.Height(), (long int)1) ) );
     }
 
     mpImpl->ResizePixel(rOrigin, rSize, false);
@@ -735,8 +735,8 @@ void ViewShellBase::Deactivate (bool bIsMDIActivate)
 }
 
 void ViewShellBase::SetZoomFactor (
-    const Fraction &rZoomX,
-    const Fraction &rZoomY)
+    const boost::rational<long>& rZoomX,
+    const boost::rational<long>& rZoomY)
 {
     SfxViewShell::SetZoomFactor (rZoomX, rZoomY);
     // Forward call to main sub shell.
diff --git a/sd/source/ui/view/drviews1.cxx b/sd/source/ui/view/drviews1.cxx
index 484bf2fda768..588cc5088b31 100644
--- a/sd/source/ui/view/drviews1.cxx
+++ b/sd/source/ui/view/drviews1.cxx
@@ -500,7 +500,7 @@ SvxRuler* DrawViewShell::CreateHRuler (::sd::Window* pWin, bool bIsFirst)
     // ... and also set DefTab at the ruler
     pRuler->SetDefTabDist( GetDoc()->GetDefaultTabulator() ); // new
 
-    Fraction aUIScale(pWin->GetMapMode().GetScaleX());
+    boost::rational<long> aUIScale(pWin->GetMapMode().GetScaleX());
     aUIScale *= GetDoc()->GetUIScale();
     pRuler->SetZoom(aUIScale);
 
@@ -529,7 +529,7 @@ SvxRuler* DrawViewShell::CreateVRuler(::sd::Window* pWin)
 
     pRuler->SetUnit( FieldUnit( nMetric ) );
 
-    Fraction aUIScale(pWin->GetMapMode().GetScaleY());
+    boost::rational<long> aUIScale(pWin->GetMapMode().GetScaleY());
     aUIScale *= GetDoc()->GetUIScale();
     pRuler->SetZoom(aUIScale);
 
diff --git a/sd/source/ui/view/drviews5.cxx b/sd/source/ui/view/drviews5.cxx
index 95b19f3f582c..e76fae8a5676 100644
--- a/sd/source/ui/view/drviews5.cxx
+++ b/sd/source/ui/view/drviews5.cxx
@@ -440,7 +440,7 @@ void DrawViewShell::Paint(const Rectangle& rRect, ::sd::Window* pWin)
 /**
  * adjust zoom factor for InPlace
  */
-void DrawViewShell::SetZoomFactor(const Fraction& rZoomX, const Fraction& rZoomY)
+void DrawViewShell::SetZoomFactor(const boost::rational<long>& rZoomX, const boost::rational<long>& rZoomY)
 {
     ViewShell::SetZoomFactor(rZoomX, rZoomY);
     mbZoomOnPage = false;
diff --git a/sd/source/ui/view/drviewsa.cxx b/sd/source/ui/view/drviewsa.cxx
index 53c73ed65f6e..741bfe06a2a3 100644
--- a/sd/source/ui/view/drviewsa.cxx
+++ b/sd/source/ui/view/drviewsa.cxx
@@ -644,9 +644,9 @@ void DrawViewShell::GetStatusBarState(SfxItemSet& rSet)
     {
         Point aPos = GetActiveWindow()->PixelToLogic(maMousePos);
         pPageView->LogicToPagePos(aPos);
-        Fraction aUIScale(GetDoc()->GetUIScale());
-        aPos.X() = Fraction(aPos.X()) / aUIScale;
-        aPos.Y() = Fraction(aPos.Y()) / aUIScale;
+        boost::rational<long> aUIScale(GetDoc()->GetUIScale());
+        aPos.X() = boost::rational_cast<long>(aPos.X() / aUIScale);
+        aPos.Y() = boost::rational_cast<long>(aPos.Y() / aUIScale);
 
         // position- and size items
         if ( mpDrawView->IsAction() )
@@ -660,12 +660,12 @@ void DrawViewShell::GetStatusBarState(SfxItemSet& rSet)
             {
                 pPageView->LogicToPagePos(aRect);
                 aPos = aRect.TopLeft();
-                aPos.X() = Fraction(aPos.X()) / aUIScale;
-                aPos.Y() = Fraction(aPos.Y()) / aUIScale;
+                aPos.X() = boost::rational_cast<long>(aPos.X() / aUIScale);
+                aPos.Y() = boost::rational_cast<long>(aPos.Y() / aUIScale);
                 rSet.Put( SfxPointItem( SID_ATTR_POSITION, aPos) );
                 Size aSize( aRect.Right() - aRect.Left(), aRect.Bottom() - aRect.Top() );
-                aSize.Height() = Fraction(aSize.Height()) / aUIScale;
-                aSize.Width()  = Fraction(aSize.Width())  / aUIScale;
+                aSize.Height() = boost::rational_cast<long>(aSize.Height() / aUIScale);
+                aSize.Width()  = boost::rational_cast<long>(aSize.Width() / aUIScale);
                 rSet.Put( SvxSizeItem( SID_ATTR_SIZE, aSize) );
             }
         }
@@ -678,13 +678,13 @@ void DrawViewShell::GetStatusBarState(SfxItemSet& rSet)
 
                 // Show the position of the selected shape(s)
                 Point aShapePosition (aRect.TopLeft());
-                aShapePosition.X() = Fraction(aShapePosition.X()) / aUIScale;
-                aShapePosition.Y() = Fraction(aShapePosition.Y()) / aUIScale;
+                aShapePosition.X() = boost::rational_cast<long>(aShapePosition.X() / aUIScale);
+                aShapePosition.Y() = boost::rational_cast<long>(aShapePosition.Y() / aUIScale);
                 rSet.Put (SfxPointItem(SID_ATTR_POSITION, aShapePosition));
 
                 Size aSize( aRect.Right() - aRect.Left(), aRect.Bottom() - aRect.Top() );
-                aSize.Height() = Fraction(aSize.Height()) / aUIScale;
-                aSize.Width()  = Fraction(aSize.Width())  / aUIScale;
+                aSize.Height() = boost::rational_cast<long>(aSize.Height() / aUIScale);
+                aSize.Width()  = boost::rational_cast<long>(aSize.Width() / aUIScale);
                 rSet.Put( SvxSizeItem( SID_ATTR_SIZE, aSize) );
             }
             else
diff --git a/sd/source/ui/view/frmview.cxx b/sd/source/ui/view/frmview.cxx
index 8ce1f57dad2b..470866dffd38 100644
--- a/sd/source/ui/view/frmview.cxx
+++ b/sd/source/ui/view/frmview.cxx
@@ -202,7 +202,7 @@ FrameView::FrameView(SdDrawDocument* pDrawDoc, FrameView* pFrameView /* = NULK *
         maVisibleLayers.SetAll();
         maPrintableLayers.SetAll();
         SetGridCoarse( Size( 1000, 1000 ) );
-        SetSnapGridWidth(Fraction(1000, 1), Fraction(1000, 1));
+        SetSnapGridWidth(boost::rational<long>(1000, 1), boost::rational<long>(1000, 1));
         SetActiveLayer( SD_RESSTR(STR_LAYER_LAYOUT) );
         mbNoColors = true;
         mbNoAttribs = false;
@@ -302,8 +302,8 @@ void FrameView::Update(SdOptions* pOptions)
 
         SetGridCoarse( Size( pOptions->GetFldDrawX(), pOptions->GetFldDrawY() ) );
         SetGridFine( Size( pOptions->GetFldDivisionX(), pOptions->GetFldDivisionY() ) );
-        Fraction aFractX(pOptions->GetFldDrawX(), pOptions->GetFldDrawX() / ( pOptions->GetFldDivisionX() ? pOptions->GetFldDivisionX() : 1 ));
-        Fraction aFractY(pOptions->GetFldDrawY(), pOptions->GetFldDrawY() / ( pOptions->GetFldDivisionY() ? pOptions->GetFldDivisionY() : 1 ));
+        boost::rational<long> aFractX(pOptions->GetFldDrawX(), pOptions->GetFldDrawX() / ( pOptions->GetFldDivisionX() ? pOptions->GetFldDivisionX() : 1 ));
+        boost::rational<long> aFractY(pOptions->GetFldDrawY(), pOptions->GetFldDrawY() / ( pOptions->GetFldDivisionY() ? pOptions->GetFldDivisionY() : 1 ));
         SetSnapGridWidth(aFractX, aFractY);
         SetQuickEdit(pOptions->IsQuickEdit());
 
@@ -464,10 +464,10 @@ void FrameView::WriteUserDataSequence ( ::com::sun::star::uno::Sequence < ::com:
     aUserData.addValue( sUNO_View_GridCoarseHeight, makeAny( (sal_Int32)GetGridCoarse().Height() ) );
     aUserData.addValue( sUNO_View_GridFineWidth, makeAny( (sal_Int32)GetGridFine().Width() ) );
     aUserData.addValue( sUNO_View_GridFineHeight, makeAny( (sal_Int32)GetGridFine().Height() ) );
-    aUserData.addValue( sUNO_View_GridSnapWidthXNumerator, makeAny( (sal_Int32)GetSnapGridWidthX().GetNumerator() ) );
-    aUserData.addValue( sUNO_View_GridSnapWidthXDenominator, makeAny( (sal_Int32)GetSnapGridWidthX().GetDenominator() ) );
-    aUserData.addValue( sUNO_View_GridSnapWidthYNumerator, makeAny( (sal_Int32)GetSnapGridWidthY().GetNumerator() ) );
-    aUserData.addValue( sUNO_View_GridSnapWidthYDenominator, makeAny( (sal_Int32)GetSnapGridWidthY().GetDenominator() ) );
+    aUserData.addValue( sUNO_View_GridSnapWidthXNumerator, makeAny( (sal_Int32)GetSnapGridWidthX().numerator() ) );
+    aUserData.addValue( sUNO_View_GridSnapWidthXDenominator, makeAny( (sal_Int32)GetSnapGridWidthX().denominator() ) );
+    aUserData.addValue( sUNO_View_GridSnapWidthYNumerator, makeAny( (sal_Int32)GetSnapGridWidthY().numerator() ) );
+    aUserData.addValue( sUNO_View_GridSnapWidthYDenominator, makeAny( (sal_Int32)GetSnapGridWidthY().denominator() ) );
     aUserData.addValue( sUNO_View_IsAngleSnapEnabled, makeAny( IsAngleSnapEnabled() ) );
     aUserData.addValue( sUNO_View_SnapAngle, makeAny( (sal_Int32)GetSnapAngle() ) );
 
@@ -561,11 +561,11 @@ void FrameView::ReadUserDataSequence ( const ::com::sun::star::uno::Sequence < :
         sal_Int16 nInt16 = 0;
         OUString aString;
 
-        sal_Int32 aSnapGridWidthXNum = GetSnapGridWidthX().GetNumerator();
-        sal_Int32 aSnapGridWidthXDom = GetSnapGridWidthX().GetDenominator();
+        sal_Int32 aSnapGridWidthXNum = GetSnapGridWidthX().numerator();
+        sal_Int32 aSnapGridWidthXDom = GetSnapGridWidthX().denominator();
 
-        sal_Int32 aSnapGridWidthYNum = GetSnapGridWidthY().GetNumerator();
-        sal_Int32 aSnapGridWidthYDom = GetSnapGridWidthY().GetDenominator();
+        sal_Int32 aSnapGridWidthYNum = GetSnapGridWidthY().numerator();
+        sal_Int32 aSnapGridWidthYDom = GetSnapGridWidthY().denominator();
 
         const com::sun::star::beans::PropertyValue *pValue = rSequence.getConstArray();
         for (sal_Int16 i = 0 ; i < nLength; i++, pValue++ )
@@ -916,8 +916,8 @@ void FrameView::ReadUserDataSequence ( const ::com::sun::star::uno::Sequence < :
             default: SetViewShEditModeOnLoad(EM_PAGE); break;
         }
 
-        const Fraction aSnapGridWidthX( aSnapGridWidthXNum, aSnapGridWidthXDom );
-        const Fraction aSnapGridWidthY( aSnapGridWidthYNum, aSnapGridWidthYDom );
+        const boost::rational<long> aSnapGridWidthX( aSnapGridWidthXNum, aSnapGridWidthXDom );
+        const boost::rational<long> aSnapGridWidthY( aSnapGridWidthYNum, aSnapGridWidthYDom );
 
         SetSnapGridWidth( aSnapGridWidthX, aSnapGridWidthY );
     }
diff --git a/sd/source/ui/view/sdview.cxx b/sd/source/ui/view/sdview.cxx
index 3a4fc537f2c6..3a25f39be01d 100644
--- a/sd/source/ui/view/sdview.cxx
+++ b/sd/source/ui/view/sdview.cxx
@@ -876,8 +876,8 @@ void View::SetMarkedOriginalSize()
                         Rectangle   aDrawRect( pObj->GetLogicRect() );
 
                         pUndoGroup->AddAction( mrDoc.GetSdrUndoFactory().CreateUndoGeoObject( *pObj ) );
-                        pObj->Resize( aDrawRect.TopLeft(), Fraction( aOleSize.Width(), aDrawRect.GetWidth() ),
-                                                           Fraction( aOleSize.Height(), aDrawRect.GetHeight() ) );
+                        pObj->Resize( aDrawRect.TopLeft(), boost::rational<long>( aOleSize.Width(), aDrawRect.GetWidth() ),
+                                                           boost::rational<long>( aOleSize.Height(), aDrawRect.GetHeight() ) );
                     }
                 }
             }
@@ -938,10 +938,10 @@ void View::DoConnect(SdrOle2Obj* pObj)
                     MapMode aMapMode( mrDoc.GetScaleUnit() );
                     Size aObjAreaSize = pObj->GetOrigObjSize( &aMapMode );
 
-                    Fraction aScaleWidth (aDrawSize.Width(),  aObjAreaSize.Width() );
-                    Fraction aScaleHeight(aDrawSize.Height(), aObjAreaSize.Height() );
-                    aScaleWidth.ReduceInaccurate(10);       // compatible to SdrOle2Obj
-                    aScaleHeight.ReduceInaccurate(10);
+                    boost::rational<long> aScaleWidth (aDrawSize.Width(),  aObjAreaSize.Width() );
+                    boost::rational<long> aScaleHeight(aDrawSize.Height(), aObjAreaSize.Height() );
+                    rational_ReduceInaccurate(aScaleWidth, 10);       // compatible to SdrOle2Obj
+                    rational_ReduceInaccurate(aScaleHeight, 10);
                     pSdClient->SetSizeScale(aScaleWidth, aScaleHeight);
 
                     // visible area is only changed in-place!
diff --git a/sd/source/ui/view/sdview3.cxx b/sd/source/ui/view/sdview3.cxx
index c620601d1d0f..3524a77565d2 100644
--- a/sd/source/ui/view/sdview3.cxx
+++ b/sd/source/ui/view/sdview3.cxx
@@ -703,8 +703,8 @@ bool View::InsertData( const TransferableDataHelper& rDataHelper,
                             Rectangle   aObjRect( pNewObj->GetCurrentBoundRect() );
                             Size        aObjSize( aObjRect.GetSize() );
 
-                            Fraction aScaleWidth( aPickObjSize.Width(), aObjSize.Width() );
-                            Fraction aScaleHeight( aPickObjSize.Height(), aObjSize.Height() );
+                            boost::rational<long> aScaleWidth( aPickObjSize.Width(), aObjSize.Width() );
+                            boost::rational<long> aScaleHeight( aPickObjSize.Height(), aObjSize.Height() );
                             pNewObj->NbcResize( aObjRect.TopLeft(), aScaleWidth, aScaleHeight );
 
                             aVec -= aObjRect.TopLeft();
diff --git a/sd/source/ui/view/sdview4.cxx b/sd/source/ui/view/sdview4.cxx
index 4e02e56ecfee..a1cb0f2c6740 100644
--- a/sd/source/ui/view/sdview4.cxx
+++ b/sd/source/ui/view/sdview4.cxx
@@ -227,8 +227,8 @@ SdrGrafObj* View::InsertGraphic( const Graphic& rGraphic, sal_Int8& rAction,
             Rectangle aObjRect(pNewGrafObj->GetCurrentBoundRect());
             Size aObjSize(aObjRect.GetSize());
 
-            Fraction aScaleWidth(aPickObjSize.Width(), aObjSize.Width());
-            Fraction aScaleHeight(aPickObjSize.Height(), aObjSize.Height());
+            boost::rational<long> aScaleWidth(aPickObjSize.Width(), aObjSize.Width());
+            boost::rational<long> aScaleHeight(aPickObjSize.Height(), aObjSize.Height());
             pNewGrafObj->NbcResize(aObjRect.TopLeft(), aScaleWidth, aScaleHeight);
 
             Point aVec = aPickObjRect.TopLeft() - aObjRect.TopLeft();
diff --git a/sd/source/ui/view/sdwindow.cxx b/sd/source/ui/view/sdwindow.cxx
index b9af542b4354..6b83b61c829c 100644
--- a/sd/source/ui/view/sdwindow.cxx
+++ b/sd/source/ui/view/sdwindow.cxx
@@ -179,10 +179,10 @@ void Window::SetMaxZoom (long int nMax)
 
 long Window::GetZoom (void) const
 {
-    if( GetMapMode().GetScaleX().GetDenominator() )
+    if( GetMapMode().GetScaleX().denominator() )
     {
-        return GetMapMode().GetScaleX().GetNumerator() * 100L
-            / GetMapMode().GetScaleX().GetDenominator();
+        return GetMapMode().GetScaleX().numerator() * 100L
+            / GetMapMode().GetScaleX().denominator();
     }
     else
     {
@@ -318,8 +318,8 @@ long Window::SetZoomFactor(long nZoom)
 
     // Set the zoom factor at the window's map mode.
     MapMode aMap(GetMapMode());
-    aMap.SetScaleX(Fraction(nZoom, 100));
-    aMap.SetScaleY(Fraction(nZoom, 100));
+    aMap.SetScaleX(boost::rational<long>(nZoom, 100));
+    aMap.SetScaleY(boost::rational<long>(nZoom, 100));
     SetMapMode(aMap);
 
     // invalidate previous size - it was relative to the old scaling
diff --git a/sd/source/ui/view/viewshe2.cxx b/sd/source/ui/view/viewshe2.cxx
index 7401fdffadc5..a7ba45ecbe6b 100644
--- a/sd/source/ui/view/viewshe2.cxx
+++ b/sd/source/ui/view/viewshe2.cxx
@@ -332,7 +332,7 @@ void ViewShell::Scroll(long nScrollX, long nScrollY)
  */
 void ViewShell::SetZoom(long nZoom)
 {
-    Fraction aUIScale(nZoom, 100);
+    boost::rational<long> aUIScale(nZoom, 100);
     aUIScale *= GetDoc()->GetUIScale();
 
     if (mpHorizontalRuler.get() != NULL)
@@ -399,7 +399,7 @@ void ViewShell::ScrollCenter()
 void ViewShell::SetZoomRect(const Rectangle& rZoomRect)
 {
     long nZoom = GetActiveWindow()->SetZoomRect(rZoomRect);
-    Fraction aUIScale(nZoom, 100);
+    boost::rational<long> aUIScale(nZoom, 100);
     aUIScale *= GetDoc()->GetUIScale();
 
     Point aPos = GetActiveWindow()->GetWinViewPos();
@@ -651,9 +651,9 @@ void ViewShell::SetPageSizeAndBorder(PageKind ePageKind, const Size& rNewSize,
 /**
  * Set zoom factor for InPlace
  */
-void ViewShell::SetZoomFactor(const Fraction& rZoomX, const Fraction&)
+void ViewShell::SetZoomFactor(const boost::rational<long>& rZoomX, const boost::rational<long>&)
 {
-    long nZoom = (long)((double) rZoomX * 100);
+    long nZoom = (long)(boost::rational_cast<double>(rZoomX) * 100);
     SetZoom(nZoom);
 }
 
@@ -870,10 +870,10 @@ bool ViewShell::ActivateObject(SdrOle2Obj* pObj, long nVerb)
         if( pObj->IsChart() ) //charts never should be stretched see #i84323# for example
             aObjAreaSize = aDrawSize;
 
-        Fraction aScaleWidth (aDrawSize.Width(),  aObjAreaSize.Width() );
-        Fraction aScaleHeight(aDrawSize.Height(), aObjAreaSize.Height() );
-        aScaleWidth.ReduceInaccurate(10);       // kompatibel zum SdrOle2Obj
-        aScaleHeight.ReduceInaccurate(10);
+        boost::rational<long> aScaleWidth (aDrawSize.Width(),  aObjAreaSize.Width() );
+        boost::rational<long> aScaleHeight(aDrawSize.Height(), aObjAreaSize.Height() );
+        rational_ReduceInaccurate(aScaleWidth, 10);       // kompatibel zum SdrOle2Obj
+        rational_ReduceInaccurate(aScaleHeight, 10);
         pSdClient->SetSizeScale(aScaleWidth, aScaleHeight);
 
         // visible section is only changed in-place!