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>

18 files changed, 64 insertions, 64 deletions

diff --git a/reportdesign/source/ui/inc/DesignView.hxx b/reportdesign/source/ui/inc/DesignView.hxx
index 2b219ea3ee63..4c36ab743abe 100644
--- a/reportdesign/source/ui/inc/DesignView.hxx
+++ b/reportdesign/source/ui/inc/DesignView.hxx
@@ -257,7 +257,7 @@ namespace rptui
 
         /** zoom the ruler and view windows
         */
-        void            zoom(const Fraction& _aZoom);
+        void            zoom(const boost::rational<long>& _aZoom);
 
         /** fills the vector with all selected control models
             /param  _rSelection The vector will be filled and will not be cleared before.
diff --git a/reportdesign/source/ui/inc/ReportWindow.hxx b/reportdesign/source/ui/inc/ReportWindow.hxx
index 0af524b81b75..fec4e81de722 100644
--- a/reportdesign/source/ui/inc/ReportWindow.hxx
+++ b/reportdesign/source/ui/inc/ReportWindow.hxx
@@ -211,7 +211,7 @@ namespace rptui
 
         /** zoom the ruler and view windows
         */
-        void zoom(const Fraction& _aZoom);
+        void zoom(const boost::rational<long>& _aZoom);
 
         /** fills the vector with all selected control models
             /param  _rSelection The vector will be filled and will not be cleared before.
diff --git a/reportdesign/source/ui/inc/ScrollHelper.hxx b/reportdesign/source/ui/inc/ScrollHelper.hxx
index e62233f84490..f00ceb8b8123 100644
--- a/reportdesign/source/ui/inc/ScrollHelper.hxx
+++ b/reportdesign/source/ui/inc/ScrollHelper.hxx
@@ -202,7 +202,7 @@ namespace rptui
 
         /** zoom the ruler and view windows
         */
-        void zoom(const Fraction& _aZoom);
+        void zoom(const boost::rational<long>& _aZoom);
 
         /** fills the vector with all selected control models
             /param  _rSelection The vector will be filled and will not be cleared before.
diff --git a/reportdesign/source/ui/inc/SectionWindow.hxx b/reportdesign/source/ui/inc/SectionWindow.hxx
index ce8615862cee..e57769c3721d 100644
--- a/reportdesign/source/ui/inc/SectionWindow.hxx
+++ b/reportdesign/source/ui/inc/SectionWindow.hxx
@@ -120,7 +120,7 @@ namespace rptui
 
         /** zoom the ruler and view windows
         */
-        void zoom(const Fraction& _aZoom);
+        void zoom(const boost::rational<long>& _aZoom);
 
         void scrollChildren(long _nThumbPosX);
     };
diff --git a/reportdesign/source/ui/inc/StartMarker.hxx b/reportdesign/source/ui/inc/StartMarker.hxx
index 9f85af132872..83d4d7aee857 100644
--- a/reportdesign/source/ui/inc/StartMarker.hxx
+++ b/reportdesign/source/ui/inc/StartMarker.hxx
@@ -71,7 +71,7 @@ namespace rptui
 
         /** zoom the ruler and view windows
         */
-        void            zoom(const Fraction& _aZoom);
+        void            zoom(const boost::rational<long>& _aZoom);
     };
 }
 #endif // INCLUDED_REPORTDESIGN_SOURCE_UI_INC_STARTMARKER_HXX
diff --git a/reportdesign/source/ui/inc/UITools.hxx b/reportdesign/source/ui/inc/UITools.hxx
index 1471152e99a1..facbd129a8c9 100644
--- a/reportdesign/source/ui/inc/UITools.hxx
+++ b/reportdesign/source/ui/inc/UITools.hxx
@@ -176,7 +176,7 @@ namespace rptui
         @param  _aZoom      the zoom scale
         @param  _rWindow    where to set the map mode
     */
-    void setZoomFactor(const Fraction& _aZoom, ::vcl::Window& _rWindow);
+    void setZoomFactor(const boost::rational<long>& _aZoom, ::vcl::Window& _rWindow);
 }
 #endif // INCLUDED_REPORTDESIGN_SOURCE_UI_INC_UITOOLS_HXX
 
diff --git a/reportdesign/source/ui/inc/ViewsWindow.hxx b/reportdesign/source/ui/inc/ViewsWindow.hxx
index fb8fff7cb894..5fe5ab29fe98 100644
--- a/reportdesign/source/ui/inc/ViewsWindow.hxx
+++ b/reportdesign/source/ui/inc/ViewsWindow.hxx
@@ -331,7 +331,7 @@ namespace rptui
 
         /** zoom the ruler and view windows
         */
-        void zoom(const Fraction& _aZoom);
+        void zoom(const boost::rational<long>& _aZoom);
 
         void scrollChildren(const Point& _aThumbPos);
 
diff --git a/reportdesign/source/ui/misc/UITools.cxx b/reportdesign/source/ui/misc/UITools.cxx
index 2a908306e23a..2ca816ddede2 100644
--- a/reportdesign/source/ui/misc/UITools.cxx
+++ b/reportdesign/source/ui/misc/UITools.cxx
@@ -991,7 +991,7 @@ void correctOverlapping(SdrObject* _pControl,OReportSection& _aReportSection,boo
         rSectionView.InsertObjectAtView(_pControl,*rSectionView.GetSdrPageView(),SDRINSERT_ADDMARK);
 }
 
-void setZoomFactor(const Fraction& _aZoom, vcl::Window& _rWindow)
+void setZoomFactor(const boost::rational<long>& _aZoom, vcl::Window& _rWindow)
 {
     MapMode aMapMode( _rWindow.GetMapMode() );
     aMapMode.SetScaleX(_aZoom);
diff --git a/reportdesign/source/ui/report/DesignView.cxx b/reportdesign/source/ui/report/DesignView.cxx
index b9df2babf467..853358ef6ccc 100644
--- a/reportdesign/source/ui/report/DesignView.cxx
+++ b/reportdesign/source/ui/report/DesignView.cxx
@@ -684,7 +684,7 @@ sal_uInt32 ODesignView::getMarkedObjectCount() const
     return m_aScrollWindow.getMarkedObjectCount();
 }
 
-void ODesignView::zoom(const Fraction& _aZoom)
+void ODesignView::zoom(const boost::rational<long>& _aZoom)
 {
     m_aScrollWindow.zoom(_aZoom);
 }
diff --git a/reportdesign/source/ui/report/EndMarker.cxx b/reportdesign/source/ui/report/EndMarker.cxx
index d9dc4cf7c891..eacba6c64ffe 100644
--- a/reportdesign/source/ui/report/EndMarker.cxx
+++ b/reportdesign/source/ui/report/EndMarker.cxx
@@ -45,9 +45,9 @@ OEndMarker::~OEndMarker()
 
 void OEndMarker::Paint( const Rectangle& /*rRect*/ )
 {
-    Fraction aCornerSpace(long(CORNER_SPACE));
+    boost::rational<long> aCornerSpace(long(CORNER_SPACE));
     aCornerSpace *= GetMapMode().GetScaleX();
-    const long nCornerSpace = aCornerSpace;
+    const long nCornerSpace = boost::rational_cast<long>(aCornerSpace);
 
     Size aSize = GetSizePixel();
     aSize.Width() += nCornerSpace;
diff --git a/reportdesign/source/ui/report/ReportController.cxx b/reportdesign/source/ui/report/ReportController.cxx
index 3259d777ee2b..f827456fbc2e 100644
--- a/reportdesign/source/ui/report/ReportController.cxx
+++ b/reportdesign/source/ui/report/ReportController.cxx
@@ -4110,7 +4110,7 @@ void OReportController::impl_fillState_nothrow(const OUString& _sProperty,dbaui:
 
 void OReportController::impl_zoom_nothrow()
 {
-    Fraction aZoom(m_nZoomValue,100);
+    boost::rational<long> aZoom(m_nZoomValue,100);
     setZoomFactor( aZoom,*getDesignView() );
     getDesignView()->zoom(aZoom);
     InvalidateFeature(SID_ATTR_ZOOM,Reference< XStatusListener >(), true);
diff --git a/reportdesign/source/ui/report/ReportSection.cxx b/reportdesign/source/ui/report/ReportSection.cxx
index 8aca901f567b..519a0abb7e59 100644
--- a/reportdesign/source/ui/report/ReportSection.cxx
+++ b/reportdesign/source/ui/report/ReportSection.cxx
@@ -202,8 +202,8 @@ void OReportSection::fill()
     m_pView->SetGridFine(aGridSizeFine);
 
     // #i93595# set snap grid width to snap to all existing subdivisions
-    const Fraction aX(aGridSizeFine.A());
-    const Fraction aY(aGridSizeFine.B());
+    const boost::rational<long> aX(aGridSizeFine.A());
+    const boost::rational<long> aY(aGridSizeFine.B());
     m_pView->SetSnapGridWidth(aX, aY);
 
     m_pView->SetGridSnap( pDesignView->isGridSnap() );
diff --git a/reportdesign/source/ui/report/ReportWindow.cxx b/reportdesign/source/ui/report/ReportWindow.cxx
index 675f6ba6077e..57afd5c0dcba 100644
--- a/reportdesign/source/ui/report/ReportWindow.cxx
+++ b/reportdesign/source/ui/report/ReportWindow.cxx
@@ -141,11 +141,11 @@ void OReportWindow::showRuler(bool _bShow)
 
 sal_Int32 OReportWindow::getMaxMarkerWidth(bool _bWithEnd) const
 {
-    Fraction aStartWidth(long(REPORT_STARTMARKER_WIDTH));
+    boost::rational<long> aStartWidth(long(REPORT_STARTMARKER_WIDTH));
     aStartWidth *= m_aViewsWindow.GetMapMode().GetScaleX();
     if ( _bWithEnd )
-        aStartWidth += Fraction(long(REPORT_ENDMARKER_WIDTH));
-    return sal_Int32((long)aStartWidth);
+        aStartWidth += boost::rational<long>(long(REPORT_ENDMARKER_WIDTH));
+    return sal_Int32(boost::rational_cast<long>(aStartWidth));
 }
 
 sal_Int32 OReportWindow::GetTotalWidth() const
@@ -153,14 +153,14 @@ sal_Int32 OReportWindow::GetTotalWidth() const
     sal_Int32 nWidth = 0;
     if ( !m_aViewsWindow.empty() )
     {
-        Fraction aStartWidth(long(REPORT_ENDMARKER_WIDTH + REPORT_STARTMARKER_WIDTH ));
-        const Fraction aZoom(m_pView->getController().getZoomValue(),100);
+        boost::rational<long> aStartWidth(long(REPORT_ENDMARKER_WIDTH + REPORT_STARTMARKER_WIDTH ));
+        const boost::rational<long> aZoom(m_pView->getController().getZoomValue(),100);
         aStartWidth *= aZoom;
         const sal_Int32 nPaperWidth = getStyleProperty<awt::Size>(m_pView->getController().getReportDefinition(),PROPERTY_PAPERSIZE).Width;
-        Fraction aPaperWidth(nPaperWidth,1);
+        boost::rational<long> aPaperWidth(nPaperWidth,1);
         aPaperWidth *= aZoom;
-        const Size aPageSize = LogicToPixel(Size(aPaperWidth,0));
-        nWidth = aPageSize.Width() + long(aStartWidth);
+        const Size aPageSize = LogicToPixel(Size(boost::rational_cast<long>(aPaperWidth),0));
+        nWidth = aPageSize.Width() + boost::rational_cast<long>(aStartWidth);
     }
     return nWidth;
 }
@@ -171,10 +171,10 @@ void OReportWindow::Resize()
     if ( !m_aViewsWindow.empty() )
     {
         const Size aTotalOutputSize = GetOutputSizePixel();
-        Fraction aStartWidth(long(REPORT_STARTMARKER_WIDTH)*m_pView->getController().getZoomValue(),100);
+        boost::rational<long> aStartWidth(long(REPORT_STARTMARKER_WIDTH)*m_pView->getController().getZoomValue(),100);
 
         const Point aOffset = LogicToPixel( Point( SECTION_OFFSET, 0 ), MAP_APPFONT );
-        Point aStartPoint((long)aStartWidth + aOffset.X(),0);
+        Point aStartPoint(boost::rational_cast<long>(aStartWidth) + aOffset.X(),0);
         uno::Reference<report::XReportDefinition> xReportDefinition = getReportView()->getController().getReportDefinition();
         const sal_Int32 nPaperWidth = getStyleProperty<awt::Size>(xReportDefinition,PROPERTY_PAPERSIZE).Width;
         sal_Int32 nLeftMargin = getStyleProperty<sal_Int32>(xReportDefinition,PROPERTY_LEFTMARGIN);
@@ -372,7 +372,7 @@ sal_uInt32 OReportWindow::getMarkedObjectCount() const
     return m_aViewsWindow.getMarkedObjectCount();
 }
 
-void OReportWindow::zoom(const Fraction& _aZoom)
+void OReportWindow::zoom(const boost::rational<long>& _aZoom)
 {
     m_aHRuler.SetZoom(_aZoom);
     m_aHRuler.Invalidate();
@@ -414,14 +414,14 @@ sal_uInt16 OReportWindow::getZoomFactor(SvxZoomType _eType) const
             break;
         case SVX_ZOOM_WHOLEPAGE:
             {
-                nZoom = (sal_uInt16)(long)Fraction(aSize.Width()*100,impl_getRealPixelWidth());
+                nZoom = (sal_uInt16) boost::rational_cast<long>( boost::rational<long>(aSize.Width() * 100, impl_getRealPixelWidth()) );
                 MapMode aMap( MAP_100TH_MM );
                 const Size aHeight = m_aViewsWindow.LogicToPixel(m_aViewsWindow.PixelToLogic(Size(0,GetTotalHeight() + m_aHRuler.GetSizePixel().Height())),aMap);
-                nZoom = ::std::min(nZoom,(sal_uInt16)(long)Fraction(aSize.Height()*100,aHeight.Height()));
+                nZoom = ::std::min(nZoom, (sal_uInt16) boost::rational_cast<long>( boost::rational<long>(aSize.Height() * 100, aHeight.Height()) ));
             }
             break;
         case SVX_ZOOM_PAGEWIDTH:
-            nZoom = (sal_uInt16)(long)Fraction(aSize.Width()*100,impl_getRealPixelWidth());
+            nZoom = (sal_uInt16)boost::rational_cast<long>( boost::rational<long>(aSize.Width() * 100, this->impl_getRealPixelWidth()) );
             break;
         default:
             break;
diff --git a/reportdesign/source/ui/report/ScrollHelper.cxx b/reportdesign/source/ui/report/ScrollHelper.cxx
index d225cee21363..59d1f6de1efd 100644
--- a/reportdesign/source/ui/report/ScrollHelper.cxx
+++ b/reportdesign/source/ui/report/ScrollHelper.cxx
@@ -101,8 +101,8 @@ void OScrollWindowHelper::setTotalSize(sal_Int32 _nWidth ,sal_Int32 _nHeight)
     m_aTotalPixelSize.Height() = _nHeight;
 
     // now set the ranges without start marker
-    Fraction aStartWidth(REPORT_STARTMARKER_WIDTH * m_pParent->getController().getZoomValue(),100);
-    long nWidth = long(_nWidth - (double)aStartWidth);
+    boost::rational<long> aStartWidth(REPORT_STARTMARKER_WIDTH * m_pParent->getController().getZoomValue(),100);
+    long nWidth = long(_nWidth - boost::rational_cast<double>(aStartWidth));
     m_aHScroll.SetRangeMax( nWidth );
     m_aVScroll.SetRangeMax( m_aTotalPixelSize.Height() );
 
@@ -163,9 +163,9 @@ Size OScrollWindowHelper::ResizeScrollBars()
     const Point aOffset = LogicToPixel( Point( SECTION_OFFSET, SECTION_OFFSET ), MAP_APPFONT );
     // resize scrollbars and set their ranges
     {
-        Fraction aStartWidth(long(REPORT_STARTMARKER_WIDTH*m_pParent->getController().getZoomValue()),100);
-        const sal_Int32 nNewWidth = aOutPixSz.Width() - aOffset.X() - (long)aStartWidth;
-        lcl_setScrollBar(nNewWidth,Point( (long)aStartWidth + aOffset.X(), aOutPixSz.Height() ),Size( nNewWidth, nScrSize ),m_aHScroll);
+        boost::rational<long> aStartWidth(long(REPORT_STARTMARKER_WIDTH*m_pParent->getController().getZoomValue()),100);
+        const sal_Int32 nNewWidth = aOutPixSz.Width() - aOffset.X() - boost::rational_cast<long>(aStartWidth);
+        lcl_setScrollBar(nNewWidth,Point( boost::rational_cast<long>(aStartWidth) + aOffset.X(), aOutPixSz.Height() ),Size( nNewWidth, nScrSize ),m_aHScroll);
     }
     {
         const sal_Int32 nNewHeight = aOutPixSz.Height() - m_aReportWindow.getRulerHeight();
@@ -382,7 +382,7 @@ sal_uInt32 OScrollWindowHelper::getMarkedObjectCount() const
     return m_aReportWindow.getMarkedObjectCount();
 }
 
-void OScrollWindowHelper::zoom(const Fraction& _aZoom)
+void OScrollWindowHelper::zoom(const boost::rational<long>& _aZoom)
 {
     m_aReportWindow.zoom(_aZoom);
     Resize();
diff --git a/reportdesign/source/ui/report/SectionWindow.cxx b/reportdesign/source/ui/report/SectionWindow.cxx
index ef15b49d9b30..1d82b716cd5e 100644
--- a/reportdesign/source/ui/report/SectionWindow.cxx
+++ b/reportdesign/source/ui/report/SectionWindow.cxx
@@ -220,7 +220,7 @@ void OSectionWindow::Resize()
     Window::Resize();
 
     Size aOutputSize = GetOutputSizePixel();
-    Fraction aEndWidth(long(REPORT_ENDMARKER_WIDTH));
+    boost::rational<long> aEndWidth(long(REPORT_ENDMARKER_WIDTH));
     aEndWidth *= GetMapMode().GetScaleX();
 
     const Point aThumbPos = m_pParent->getView()->getThumbPos();
@@ -236,33 +236,33 @@ void OSectionWindow::Resize()
     {
         const bool bShowEndMarker = m_pParent->getView()->GetTotalWidth() <= (aThumbPos.X() +  aOutputSize.Width() );
 
-        Fraction aStartWidth(long(REPORT_STARTMARKER_WIDTH));
+        boost::rational<long> aStartWidth(long(REPORT_STARTMARKER_WIDTH));
         aStartWidth *= GetMapMode().GetScaleX();
 
         // set start marker
-        m_aStartMarker.SetPosSizePixel(Point(0,0),Size(aStartWidth,aOutputSize.Height()));
+        m_aStartMarker.SetPosSizePixel(Point(0,0),Size(boost::rational_cast<long>(aStartWidth),aOutputSize.Height()));
 
         // set report section
         const uno::Reference< report::XSection> xSection = m_aReportSection.getSection();
         Size aSectionSize = LogicToPixel( Size( 0,xSection->getHeight() ) );
-        Point aReportPos(aStartWidth,0);
-        aSectionSize.Width() = aOutputSize.Width() - (long)aStartWidth;
+        Point aReportPos(boost::rational_cast<long>(aStartWidth),0);
+        aSectionSize.Width() = aOutputSize.Width() - boost::rational_cast<long>(aStartWidth);
         if ( bShowEndMarker )
-            aSectionSize.Width() -= (long)aEndWidth;
+            aSectionSize.Width() -= boost::rational_cast<long>(aEndWidth);
 
         m_aReportSection.SetPosSizePixel(aReportPos,aSectionSize);
 
         // set splitter
         aReportPos.Y() += aSectionSize.Height();
         m_aSplitter.SetPosSizePixel(aReportPos,Size(aSectionSize.Width(),m_aSplitter.GetSizePixel().Height()));
-        aSectionSize.Height() = (long)(1000 * (double)GetMapMode().GetScaleY());
-        m_aSplitter.SetDragRectPixel( Rectangle(Point(aStartWidth,0),aSectionSize));
+        aSectionSize.Height() = (long)(1000 * boost::rational_cast<double>(this->GetMapMode().GetScaleY()));
+        m_aSplitter.SetDragRectPixel( Rectangle(Point(boost::rational_cast<long>(aStartWidth),0),aSectionSize));
 
         // set end marker
         aReportPos.X() += aSectionSize.Width();
         aReportPos.Y() = 0;
         m_aEndMarker.Show(bShowEndMarker);
-        m_aEndMarker.SetPosSizePixel(aReportPos,Size(aEndWidth,aOutputSize.Height()));
+        m_aEndMarker.SetPosSizePixel(aReportPos,Size(boost::rational_cast<long>(aEndWidth),aOutputSize.Height()));
     }
 }
 
@@ -299,7 +299,7 @@ IMPL_LINK( OSectionWindow, Collapsed, OColorListener *, _pMarker )
     return 0L;
 }
 
-void OSectionWindow::zoom(const Fraction& _aZoom)
+void OSectionWindow::zoom(const boost::rational<long>& _aZoom)
 {
     setZoomFactor(_aZoom,*this);
     m_aStartMarker.zoom(_aZoom);
diff --git a/reportdesign/source/ui/report/StartMarker.cxx b/reportdesign/source/ui/report/StartMarker.cxx
index a1a3f30944d2..bc7fc19a6efd 100644
--- a/reportdesign/source/ui/report/StartMarker.cxx
+++ b/reportdesign/source/ui/report/StartMarker.cxx
@@ -89,9 +89,9 @@ OStartMarker::~OStartMarker()
 
 sal_Int32 OStartMarker::getMinHeight() const
 {
-    Fraction aExtraWidth(long(2*REPORT_EXTRA_SPACE));
+    boost::rational<long> aExtraWidth(long(2*REPORT_EXTRA_SPACE));
     aExtraWidth *= GetMapMode().GetScaleX();
-    return LogicToPixel(Size(0,m_aText.GetTextHeight())).Height() + (long)aExtraWidth;
+    return LogicToPixel(Size(0,m_aText.GetTextHeight())).Height() + boost::rational_cast<long>(aExtraWidth);
 }
 
 void OStartMarker::Paint( const Rectangle& rRect )
@@ -99,7 +99,7 @@ void OStartMarker::Paint( const Rectangle& rRect )
     (void)rRect;
     Size aSize = GetOutputSizePixel();
     long nSize = aSize.Width();
-    const long nCornerWidth = long(CORNER_SPACE * (double)GetMapMode().GetScaleX());
+    const long nCornerWidth = long(CORNER_SPACE * boost::rational_cast<double>(GetMapMode().GetScaleX()));
 
     if ( isCollapsed() )
     {
@@ -134,7 +134,7 @@ void OStartMarker::Paint( const Rectangle& rRect )
     }
     if ( m_bMarked )
     {
-        const long nCornerHeight = long(CORNER_SPACE * (double)GetMapMode().GetScaleY());
+        const long nCornerHeight = long(CORNER_SPACE * boost::rational_cast<double>(GetMapMode().GetScaleY()));
         Rectangle aRect( Point(nCornerWidth,nCornerHeight),
                          Size(aSize.Width() - nCornerWidth - nCornerWidth,aSize.Height() - nCornerHeight - nCornerHeight));
         ColorChanger aColors( this, COL_WHITE, COL_WHITE );
@@ -218,17 +218,17 @@ void OStartMarker::Resize()
 
     Size aImageSize = m_aImage.GetImage().GetSizePixel();
     const MapMode& rMapMode = GetMapMode();
-    aImageSize.Width() = long(aImageSize.Width() * (double)rMapMode.GetScaleX());
-    aImageSize.Height() = long(aImageSize.Height() * (double)rMapMode.GetScaleY());
+    aImageSize.Width() = long(aImageSize.Width() * boost::rational_cast<double>(rMapMode.GetScaleX()));
+    aImageSize.Height() = long(aImageSize.Height() * boost::rational_cast<double>(rMapMode.GetScaleY()));
 
-    Fraction aExtraWidth(long(REPORT_EXTRA_SPACE));
+    boost::rational<long> aExtraWidth(long(REPORT_EXTRA_SPACE));
     aExtraWidth *= rMapMode.GetScaleX();
 
-    Point aPos(aImageSize.Width() + (long)(aExtraWidth + aExtraWidth), aExtraWidth);
+    Point aPos(aImageSize.Width() + boost::rational_cast<long>((aExtraWidth + aExtraWidth)), boost::rational_cast<long>(aExtraWidth));
     const long nHeight = ::std::max<sal_Int32>(nOutputHeight - 2*aPos.Y(),LogicToPixel(Size(0,m_aText.GetTextHeight())).Height());
     m_aText.SetPosSizePixel(aPos,Size(aRulerPos.X() - aPos.X(),nHeight));
 
-    aPos.X() = aExtraWidth;
+    aPos.X() = boost::rational_cast<long>(aExtraWidth);
     aPos.Y() += static_cast<sal_Int32>((LogicToPixel(Size(0,m_aText.GetTextHeight())).Height() - aImageSize.Height()) * 0.5) ;
     m_aImage.SetPosSizePixel(aPos,aImageSize);
 }
@@ -281,7 +281,7 @@ void OStartMarker::setCollapsed(bool _bCollapsed)
     changeImage();
 }
 
-void OStartMarker::zoom(const Fraction& _aZoom)
+void OStartMarker::zoom(const boost::rational<long>& _aZoom)
 {
     setZoomFactor(_aZoom,*this);
     m_aVRuler.SetZoom(_aZoom);
diff --git a/reportdesign/source/ui/report/ViewsWindow.cxx b/reportdesign/source/ui/report/ViewsWindow.cxx
index 5fb908d71dee..8c0e49f4eb86 100644
--- a/reportdesign/source/ui/report/ViewsWindow.cxx
+++ b/reportdesign/source/ui/report/ViewsWindow.cxx
@@ -206,7 +206,7 @@ void OViewsWindow::impl_resizeSectionWindow(OSectionWindow& _rSectionWindow,Poin
         aSectionSize.Height() = nMinHeight;
     }
     const StyleSettings& rSettings = GetSettings().GetStyleSettings();
-    aSectionSize.Height() += (long)(rSettings.GetSplitSize() * (double)_rSectionWindow.GetMapMode().GetScaleY());
+    aSectionSize.Height() += (long)(rSettings.GetSplitSize() * boost::rational_cast<double>(_rSectionWindow.GetMapMode().GetScaleY()));
 
     if ( _bSet )
         _rSectionWindow.SetPosSizePixel(_rStartPoint,aSectionSize);
@@ -263,13 +263,13 @@ void OViewsWindow::Paint( const Rectangle& rRect )
     Window::Paint( rRect );
 
     Size aOut = GetOutputSizePixel();
-    Fraction aStartWidth(long(REPORT_STARTMARKER_WIDTH));
+    boost::rational<long> aStartWidth(long(REPORT_STARTMARKER_WIDTH));
     aStartWidth *= GetMapMode().GetScaleX();
 
-    aOut.Width() -= (long)aStartWidth;
+    aOut.Width() -= boost::rational_cast<long>(aStartWidth);
     aOut = PixelToLogic(aOut);
 
-    Rectangle aRect(PixelToLogic(Point(aStartWidth,0)),aOut);
+    Rectangle aRect(PixelToLogic(Point(boost::rational_cast<long>(aStartWidth),0)),aOut);
     Wallpaper aWall( m_aColorConfig.GetColorValue(::svtools::APPBACKGROUND).nColor );
     DrawWallpaper(aRect,aWall);
 }
@@ -1685,11 +1685,11 @@ void OViewsWindow::collapseSections(const uno::Sequence< beans::PropertyValue>&
     }
 }
 
-void OViewsWindow::zoom(const Fraction& _aZoom)
+void OViewsWindow::zoom(const boost::rational<long>& _aZoom)
 {
     const MapMode& aMapMode = GetMapMode();
 
-    Fraction aStartWidth(long(REPORT_STARTMARKER_WIDTH));
+    boost::rational<long> aStartWidth(long(REPORT_STARTMARKER_WIDTH));
     if ( _aZoom < aMapMode.GetScaleX() )
         aStartWidth *= aMapMode.GetScaleX();
     else
@@ -1707,7 +1707,7 @@ void OViewsWindow::zoom(const Fraction& _aZoom)
     Resize();
 
     Size aOut = GetOutputSizePixel();
-    aOut.Width() = aStartWidth;
+    aOut.Width() = boost::rational_cast<long>(aStartWidth);
     aOut = PixelToLogic(aOut);
 
     Rectangle aRect(PixelToLogic(Point(0,0)),aOut);
diff --git a/reportdesign/source/ui/report/dlgedfunc.cxx b/reportdesign/source/ui/report/dlgedfunc.cxx
index 07067619fff9..33b12ae54a00 100644
--- a/reportdesign/source/ui/report/dlgedfunc.cxx
+++ b/reportdesign/source/ui/report/dlgedfunc.cxx
@@ -78,10 +78,10 @@ void DlgEdFunc::ForceScroll( const Point& rPos )
     OScrollWindowHelper* pScrollWindow = pReportWindow->getScrollWindow();
 
     Size aOut = pReportWindow->GetOutputSizePixel();
-    Fraction aStartWidth(long(REPORT_STARTMARKER_WIDTH));
+    boost::rational<long> aStartWidth(long(REPORT_STARTMARKER_WIDTH));
     aStartWidth *= m_pParent->GetMapMode().GetScaleX();
 
-    aOut.Width() -= (long)aStartWidth;
+    aOut.Width() -= boost::rational_cast<long>(aStartWidth);
     aOut.Height() = m_pParent->GetOutputSizePixel().Height();
 
     Point aPos = pScrollWindow->getThumbPos();
@@ -90,7 +90,7 @@ void DlgEdFunc::ForceScroll( const Point& rPos )
     Rectangle aOutRect( aPos, aOut );
     aOutRect = m_pParent->PixelToLogic( aOutRect );
     Rectangle aWorkArea(Point(), pScrollWindow->getTotalSize());
-    aWorkArea.Right() -= (long)aStartWidth;
+    aWorkArea.Right() -= boost::rational_cast<long>(aStartWidth);
     aWorkArea = pScrollWindow->PixelToLogic( aWorkArea );
     if( !aOutRect.IsInside( rPos ) && aWorkArea.IsInside( rPos ) )
     {