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>

3 files changed, 6 insertions, 6 deletions

diff --git a/basctl/source/dlged/dlged.cxx b/basctl/source/dlged/dlged.cxx
index 9800c4c5d2bf..5d8373a0815e 100644
--- a/basctl/source/dlged/dlged.cxx
+++ b/basctl/source/dlged/dlged.cxx
@@ -234,7 +234,7 @@ DlgEditor::DlgEditor (
     pDlgEdView->SetWorkArea( Rectangle( Point( 0, 0 ), pDlgEdPage->GetSize() ) );
 
     pDlgEdView->SetGridCoarse( aGridSize );
-    pDlgEdView->SetSnapGridWidth(Fraction(aGridSize.Width(), 1), Fraction(aGridSize.Height(), 1));
+    pDlgEdView->SetSnapGridWidth(boost::rational<long>(aGridSize.Width(),1), boost::rational<long>(aGridSize.Height(),1));
     pDlgEdView->SetGridSnap( bGridSnap );
     pDlgEdView->SetGridVisible( bGridVisible );
     pDlgEdView->SetDragStripes(false);
@@ -508,7 +508,7 @@ IMPL_LINK_NOARG(DlgEditor, PaintTimeout)
                 Size   aSize = rWindow.PixelToLogic( Size( 400, 300 ) );
 
                 // align with grid
-                Size aGridSize_(long(pDlgEdView->GetSnapGridWidthX()), long(pDlgEdView->GetSnapGridWidthY()));
+                Size aGridSize_(boost::rational_cast<long>(pDlgEdView->GetSnapGridWidthX()), boost::rational_cast<long>(pDlgEdView->GetSnapGridWidthY()));
                 aSize.Width()  -= aSize.Width()  % aGridSize_.Width();
                 aSize.Height() -= aSize.Height() % aGridSize_.Height();
 
diff --git a/basctl/source/dlged/dlgedobj.cxx b/basctl/source/dlged/dlgedobj.cxx
index 4d52b5f1b5ad..89a0207989d8 100644
--- a/basctl/source/dlged/dlgedobj.cxx
+++ b/basctl/source/dlged/dlgedobj.cxx
@@ -940,7 +940,7 @@ void DlgEdObj::NbcMove( const Size& rSize )
     GetDlgEdForm()->GetDlgEditor().SetDialogModelChanged(true);
 }
 
-void DlgEdObj::NbcResize(const Point& rRef, const Fraction& xFract, const Fraction& yFract)
+void DlgEdObj::NbcResize(const Point& rRef, const boost::rational<long>& xFract, const boost::rational<long>& yFract)
 {
     SdrUnoObj::NbcResize( rRef, xFract, yFract );
 
@@ -1590,7 +1590,7 @@ void DlgEdForm::NbcMove( const Size& rSize )
     GetDlgEditor().SetDialogModelChanged(true);
 }
 
-void DlgEdForm::NbcResize(const Point& rRef, const Fraction& xFract, const Fraction& yFract)
+void DlgEdForm::NbcResize(const Point& rRef, const boost::rational<long>& xFract, const boost::rational<long>& yFract)
 {
     SdrUnoObj::NbcResize( rRef, xFract, yFract );
 
diff --git a/basctl/source/inc/dlgedobj.hxx b/basctl/source/inc/dlgedobj.hxx
index 525a5518f271..33e489ff06e1 100644
--- a/basctl/source/inc/dlgedobj.hxx
+++ b/basctl/source/inc/dlgedobj.hxx
@@ -63,7 +63,7 @@ protected:
              const com::sun::star::uno::Reference< com::sun::star::lang::XMultiServiceFactory >& rxSFac);
 
     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 bool EndCreate(SdrDragStat& rStat, SdrCreateCmd eCmd) SAL_OVERRIDE;
 
     using SfxListener::StartListening;
@@ -153,7 +153,7 @@ private:
 
 protected:
     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 bool EndCreate(SdrDragStat& rStat, SdrCreateCmd eCmd) SAL_OVERRIDE;
 
 public: