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>

1 files changed, 6 insertions, 6 deletions

diff --git a/sc/inc/rowheightcontext.hxx b/sc/inc/rowheightcontext.hxx
index a33455444438..0db012c4a263 100644
--- a/sc/inc/rowheightcontext.hxx
+++ b/sc/inc/rowheightcontext.hxx
@@ -12,7 +12,7 @@
 
 #include "scdllapi.h"
 
-#include <tools/fract.hxx>
+#include <tools/rational.hxx>
 
 class OutputDevice;
 
@@ -22,8 +22,8 @@ class SC_DLLPUBLIC RowHeightContext
 {
     double mfPPTX;
     double mfPPTY;
-    Fraction maZoomX;
-    Fraction maZoomY;
+    boost::rational<long> maZoomX;
+    boost::rational<long> maZoomY;
     OutputDevice* mpOutDev;
 
     sal_uInt16 mnExtraHeight;
@@ -31,15 +31,15 @@ class SC_DLLPUBLIC RowHeightContext
 
 public:
     RowHeightContext(
-        double fPPTX, double fPPTY, const Fraction& rZoomX, const Fraction& rZoomY,
+        double fPPTX, double fPPTY, const boost::rational<long>& rZoomX, const boost::rational<long>& rZoomY,
         OutputDevice* pOutDev );
 
     ~RowHeightContext();
 
     double getPPTX() const { return mfPPTX;}
     double getPPTY() const { return mfPPTY;}
-    const Fraction& getZoomX() const { return maZoomX;}
-    const Fraction& getZoomY() const { return maZoomY;}
+    const boost::rational<long>& getZoomX() const { return maZoomX;}
+    const boost::rational<long>& getZoomY() const { return maZoomY;}
 
     OutputDevice* getOutputDevice() { return mpOutDev;}