Use position objects for more efficient element value lookups.

The underlying multi_type_vector didn't have the concept of position objects
back when the matrix was reworked. It is now available, and there is no reason
why we shouldn't use it to speed things up.

Change-Id: Iac75a5584779c16e6eff7fcd577fc3d717c3c2e7

sc/source/core/tool/scmatrix.cxx

@@ -128,12 +128,13 @@ void compareMatrix(MatrixImplType& rMat)
     {
         for (size_t j = 0; j < aDim.column; ++j)
         {
-            mdds::mtm::element_t eType = rMat.get_type(i, j);
+            MatrixImplType::const_position_type aPos = rMat.position(i, j);
+            mdds::mtm::element_t eType = rMat.get_type(aPos);
             if (eType != mdds::mtm::element_numeric && eType != mdds::mtm::element_boolean)
                 // must be of numeric type (boolean can be numeric).
                 continue;
 
-            double fVal = rMat.get_numeric(i, j);
+            double fVal = rMat.get_numeric(aPos);
             if (!::rtl::math::isFinite(fVal))
                 /* FIXME: this silently skips an error instead of propagating it! */
                 continue;
@@ -469,20 +470,17 @@ OUString ScMatrixImpl::GetString(SCSIZE nC, SCSIZE nR) const
     if (ValidColRowOrReplicated( nC, nR ))
     {
         double fErr = 0.0;
-        switch (maMat.get_type(nR, nC))
+        MatrixImplType::const_position_type aPos = maMat.position(nR, nC);
+        switch (maMat.get_type(aPos))
         {
             case mdds::mtm::element_string:
-                return maMat.get<OUString>(nR, nC);
+                return maMat.get_string(aPos);
             case mdds::mtm::element_empty:
                 return EMPTY_OUSTRING;
             case mdds::mtm::element_numeric:
-                OSL_FAIL("ScMatrixImpl::GetString: access error, no string");
-                fErr = maMat.get<double>(nR, nC);
-            break;
             case mdds::mtm::element_boolean:
                 OSL_FAIL("ScMatrixImpl::GetString: access error, no string");
-                fErr = maMat.get<bool>(nR, nC);
-            break;
+                fErr = maMat.get_numeric(aPos);
             default:
                 OSL_FAIL("ScMatrixImpl::GetString: access error, no string");
         }
@@ -511,10 +509,11 @@ OUString ScMatrixImpl::GetString( SvNumberFormatter& rFormatter, SCSIZE nC, SCSI
     }
 
     double fVal = 0.0;
-    switch (maMat.get_type(nR, nC))
+    MatrixImplType::const_position_type aPos = maMat.position(nR, nC);
+    switch (maMat.get_type(aPos))
     {
         case mdds::mtm::element_string:
-            return maMat.get<OUString>(nR, nC);
+            return maMat.get_string(aPos);
         case mdds::mtm::element_empty:
         {
             if (!maMatFlag.get<bool>(nR, nC))
@@ -530,10 +529,8 @@ OUString ScMatrixImpl::GetString( SvNumberFormatter& rFormatter, SCSIZE nC, SCSI
             return aStr;
         }
         case mdds::mtm::element_numeric:
-            fVal = maMat.get<double>(nR, nC);
-        break;
         case mdds::mtm::element_boolean:
-            fVal = maMat.get<bool>(nR, nC);
+            fVal = maMat.get_numeric(aPos);
         break;
         default:
             ;
@@ -558,20 +555,21 @@ ScMatrixValue ScMatrixImpl::Get(SCSIZE nC, SCSIZE nR) const
     ScMatrixValue aVal;
     if (ValidColRowOrReplicated(nC, nR))
     {
-        mdds::mtm::element_t eType = maMat.get_type(nR, nC);
+        MatrixImplType::const_position_type aPos = maMat.position(nR, nC);
+        mdds::mtm::element_t eType = maMat.get_type(aPos);
         switch (eType)
         {
             case mdds::mtm::element_boolean:
                 aVal.nType = SC_MATVAL_BOOLEAN;
-                aVal.fVal = maMat.get_boolean(nR, nC);
+                aVal.fVal = maMat.get_boolean(aPos);
             break;
             case mdds::mtm::element_numeric:
                 aVal.nType = SC_MATVAL_VALUE;
-                aVal.fVal = maMat.get_numeric(nR, nC);
+                aVal.fVal = maMat.get_numeric(aPos);
             break;
             case mdds::mtm::element_string:
                 aVal.nType = SC_MATVAL_STRING;
-                aVal.aStr = maMat.get_string(nR, nC);
+                aVal.aStr = maMat.get_string(aPos);
             break;
             case mdds::mtm::element_empty:
                 // Empty path equals empty plus flag.
@@ -775,12 +773,13 @@ double EvalMatrix(const MatrixImplType& rMat)
     {
         for (size_t j = 0; j < nCols; ++j)
         {
-            mdds::mtm::element_t eType = rMat.get_type(i, j);
+            MatrixImplType::const_position_type aPos = rMat.position(i, j);
+            mdds::mtm::element_t eType = rMat.get_type(aPos);
             if (eType != mdds::mtm::element_numeric && eType != mdds::mtm::element_boolean)
                 // assuming a CompareMat this is an error
                 return CreateDoubleError(errIllegalArgument);
 
-            double fVal = rMat.get_numeric(i, j);
+            double fVal = rMat.get_numeric(aPos);
             if (!::rtl::math::isFinite(fVal))
                 // DoubleError
                 return fVal;