we need these old equal methods again

i.e. revert 5c3615c1

Change-Id: I7bafaabaf5b8337c3ef4fe0d9ea687924045114e

basegfx/source/polygon/b2dpolygontools.cxx

@@ -3133,6 +3133,50 @@ namespace basegfx
             return aRetval;
         }
 
+        //////////////////////////////////////////////////////////////////////
+        // comparators with tolerance for 2D Polygons
+
+        bool equal(const B2DPolygon& rCandidateA, const B2DPolygon& rCandidateB, const double& rfSmallValue)
+        {
+            const sal_uInt32 nPointCount(rCandidateA.count());
+
+            if(nPointCount != rCandidateB.count())
+                return false;
+
+            const bool bClosed(rCandidateA.isClosed());
+
+            if(bClosed != rCandidateB.isClosed())
+                return false;
+
+            const bool bAreControlPointsUsed(rCandidateA.areControlPointsUsed());
+
+            if(bAreControlPointsUsed != rCandidateB.areControlPointsUsed())
+                return false;
+
+            for(sal_uInt32 a(0); a < nPointCount; a++)
+            {
+                const B2DPoint aPoint(rCandidateA.getB2DPoint(a));
+
+                if(!aPoint.equal(rCandidateB.getB2DPoint(a), rfSmallValue))
+                    return false;
+
+                if(bAreControlPointsUsed)
+                {
+                    const basegfx::B2DPoint aPrev(rCandidateA.getPrevControlPoint(a));
+
+                    if(!aPrev.equal(rCandidateB.getPrevControlPoint(a), rfSmallValue))
+                        return false;
+
+                    const basegfx::B2DPoint aNext(rCandidateA.getNextControlPoint(a));
+
+                    if(!aNext.equal(rCandidateB.getNextControlPoint(a), rfSmallValue))
+                        return false;
+                }
+            }
+
+            return true;
+        }
+
         // snap points of horizontal or vertical edges to discrete values
         B2DPolygon snapPointsOfHorizontalOrVerticalEdges(const B2DPolygon& rCandidate)
         {

basegfx/source/polygon/b3dpolygontools.cxx

@@ -734,6 +734,32 @@ namespace basegfx
             return false;
         }
 
+        //////////////////////////////////////////////////////////////////////
+        // comparators with tolerance for 3D Polygons
+
+        bool equal(const B3DPolygon& rCandidateA, const B3DPolygon& rCandidateB, const double& rfSmallValue)
+        {
+            const sal_uInt32 nPointCount(rCandidateA.count());
+
+            if(nPointCount != rCandidateB.count())
+                return false;
+
+            const bool bClosed(rCandidateA.isClosed());
+
+            if(bClosed != rCandidateB.isClosed())
+                return false;
+
+            for(sal_uInt32 a(0); a < nPointCount; a++)
+            {
+                const B3DPoint aPoint(rCandidateA.getB3DPoint(a));
+
+                if(!aPoint.equal(rCandidateB.getB3DPoint(a), rfSmallValue))
+                    return false;
+            }
+
+            return true;
+        }
+
         // snap points of horizontal or vertical edges to discrete values
         B3DPolygon snapPointsOfHorizontalOrVerticalEdges(const B3DPolygon& rCandidate)
         {

include/basegfx/polygon/b2dpolygontools.hxx

@@ -420,6 +420,10 @@ namespace basegfx
         */
         BASEGFX_DLLPUBLIC B2DPolygon createWaveline(const B2DPolygon& rCandidate, double fWaveWidth, double fWaveHeight);
 
+        //////////////////////////////////////////////////////////////////////
+        // comparators with tolerance for 2D Polygons
+        BASEGFX_DLLPUBLIC bool equal(const B2DPolygon& rCandidateA, const B2DPolygon& rCandidateB, const double& rfSmallValue);
+
         /** snap some polygon coordinates to discrete coordinates
 
             This method allows to snap some polygon points to discrete (integer) values

include/basegfx/polygon/b3dpolygontools.hxx

@@ -113,6 +113,10 @@ namespace basegfx
         // and a line given by start and end point
         BASEGFX_DLLPUBLIC bool getCutBetweenLineAndPlane(const B3DVector& rPlaneNormal, const B3DPoint& rPlanePoint, const B3DPoint& rEdgeStart, const B3DPoint& rEdgeEnd, double& fCut);
 
+        //////////////////////////////////////////////////////////////////////
+        // comparators with tolerance for 3D Polygons
+        BASEGFX_DLLPUBLIC bool equal(const B3DPolygon& rCandidateA, const B3DPolygon& rCandidateB, const double& rfSmallValue);
+
         /** snap some polygon coordinates to discrete coordinates
 
             This method allows to snap some polygon points to discrete (integer) values