tdf#154363 sd: fix line connectors regression of mirrored shapes

caused by commit cbf66ec3e60d07efb7c3cceed9b4f0fb4f0510c8
(tdf#89449 PPTX import: fix line connectors).

Note: partial revert of commit 9ab16e2738b4b9bd324c9aded8acb2ecba0fd2b0
"oox: fix crash in lcl_GetGluePointId by removing unused code".

Change-Id: Icc45c93c4fa3a22c0f34866ccb64ea6b9037d936
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/149676
Reviewed-by: László Németh <nemeth@numbertext.org>
Tested-by: László Németh <nemeth@numbertext.org>

2 files changed, 39 insertions, 13 deletions

diff --git a/oox/source/export/shapes.cxx b/oox/source/export/shapes.cxx
index 372b4376fe22..eab82a86336d 100644
--- a/oox/source/export/shapes.cxx
+++ b/oox/source/export/shapes.cxx
@@ -1640,17 +1640,38 @@ static void lcl_GetConnectorAdjustValue(const Reference<XShape>& xShape, tools::
     }
 }
 
-static sal_Int32 lcl_GetGluePointId(sal_Int32 nGluePointId)
+static sal_Int32 lcl_GetGluePointId(const Reference<XShape>& xShape, sal_Int32 nGluePointId)
 {
     if (nGluePointId > 3)
         return nGluePointId - 4;
     else
     {
-        // change id of the bounding box (1 <-> 3)
-        if (nGluePointId == 1)
-            return 3; // Right
-        else if (nGluePointId == 3)
-            return 1; // Left
+        bool bFlipH = false;
+        bool bFlipV = false;
+        Reference<XPropertySet> xShapeProps(xShape, UNO_QUERY);
+        if (xShapeProps->getPropertySetInfo()->hasPropertyByName("CustomShapeGeometry"))
+        {
+            Sequence<PropertyValue> aGeometrySeq;
+            xShapeProps->getPropertyValue("CustomShapeGeometry") >>= aGeometrySeq;
+            for (int i = 0; i < aGeometrySeq.getLength(); i++)
+            {
+                const PropertyValue& rProp = aGeometrySeq[i];
+                if (rProp.Name == "MirroredX")
+                    rProp.Value >>= bFlipH;
+
+                if (rProp.Name == "MirroredY")
+                    rProp.Value >>= bFlipV;
+            }
+        }
+
+        if ((!bFlipH && !bFlipV) || (bFlipH && bFlipV))
+        {
+            // change id of the bounding box (1 <-> 3)
+            if (nGluePointId == 1)
+                nGluePointId = 3; // Right
+            else if (nGluePointId == 3)
+                nGluePointId = 1; // Left
+        }
     }
 
     return nGluePointId;
@@ -1708,12 +1729,12 @@ ShapeExport& ShapeExport::WriteConnectorShape( const Reference< XShape >& xShape
     if (GetProperty(rXPropSet, "StartGluePointIndex"))
         mAny >>= nStartGlueId;
     if (nStartGlueId != -1)
-        nStartGlueId = lcl_GetGluePointId(nStartGlueId);
+        nStartGlueId = lcl_GetGluePointId(rXShapeA, nStartGlueId);
 
     if (GetProperty(rXPropSet, "EndGluePointIndex"))
         mAny >>= nEndGlueId;
     if (nEndGlueId != -1)
-        nEndGlueId = lcl_GetGluePointId(nEndGlueId);
+        nEndGlueId = lcl_GetGluePointId(rXShapeB, nEndGlueId);
 
     // Position is relative to group in Word, but relative to anchor of group in API.
     if (GetDocumentType() == DOCUMENT_DOCX && !mbUserShapes && m_xParent.is())
diff --git a/oox/source/ppt/slidepersist.cxx b/oox/source/ppt/slidepersist.cxx
index bb673b52442e..0f7479e8ede9 100644
--- a/oox/source/ppt/slidepersist.cxx
+++ b/oox/source/ppt/slidepersist.cxx
@@ -659,11 +659,16 @@ void SlidePersist::createConnectorShapeConnection()
                         nGlueId += 4;
                     else
                     {
-                        // change id of the left and right glue points of the bounding box (1 <-> 3)
-                        if (nGlueId == 1)
-                            nGlueId = 3; // Right
-                        else if (nGlueId == 3)
-                            nGlueId = 1; // Left
+                        bool bFlipH = pShape->second->getFlipH();
+                        bool bFlipV = pShape->second->getFlipV();
+                        if ((!bFlipH && !bFlipV) || (bFlipH && bFlipV))
+                        {
+                            // change id of the left and right glue points of the bounding box (1 <-> 3)
+                            if (nGlueId == 1)
+                                nGlueId = 3; // Right
+                            else if (nGlueId == 3)
+                                nGlueId = 1; // Left
+                        }
                     }
 
                     bool bStart = aConnectorShapeProperties[j].mbStartShape;