SmartArt: better detecting connector arrow type

* basing on provided conn alg params
* also moved setting arrow direction from getConnectorType() to algorithms

Change-Id: I76898a4ccad961edd389677c31e7d8c05bcdf5fe
Reviewed-on: https://gerrit.libreoffice.org/70598
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>

2 files changed, 47 insertions, 53 deletions

diff --git a/oox/source/drawingml/diagram/diagramlayoutatoms.cxx b/oox/source/drawingml/diagram/diagramlayoutatoms.cxx
index 7686ddf2413c..96e305b46a00 100644
--- a/oox/source/drawingml/diagram/diagramlayoutatoms.cxx
+++ b/oox/source/drawingml/diagram/diagramlayoutatoms.cxx
@@ -84,56 +84,6 @@ sal_Int32 getPropertyFromConstraint(sal_Int32 nConstraint)
     return 0;
 }
 
-/// Determines the connector shape type from a linear alg.
-sal_Int32 getConnectorType(const oox::drawingml::LayoutNode* pNode)
-{
-    sal_Int32 nType = oox::XML_rightArrow;
-
-    if (!pNode)
-        return nType;
-
-    // This is cheaper than visiting the whole sub-tree.
-    if (pNode->getName().startsWith("hierChild"))
-        return oox::XML_bentConnector3;
-
-    for (const auto& pChild : pNode->getChildren())
-    {
-        auto pAlgAtom = dynamic_cast<oox::drawingml::AlgAtom*>(pChild.get());
-        if (!pAlgAtom)
-            continue;
-
-        switch (pAlgAtom->getType())
-        {
-            case oox::XML_lin:
-            {
-                sal_Int32 nDir = oox::XML_fromL;
-                if (pAlgAtom->getMap().count(oox::XML_linDir))
-                    nDir = pAlgAtom->getMap().find(oox::XML_linDir)->second;
-
-                switch (nDir)
-                {
-                    case oox::XML_fromL:
-                        nType = oox::XML_rightArrow;
-                        break;
-                    case oox::XML_fromR:
-                        nType = oox::XML_leftArrow;
-                        break;
-                }
-                break;
-            }
-            case oox::XML_hierChild:
-            {
-                // TODO <dgm:param type="connRout" val="..."/> should be able
-                // to customize this.
-                nType = oox::XML_bentConnector3;
-                break;
-            }
-        }
-    }
-
-    return nType;
-}
-
 /**
  * Determines if pShape is (or contains) a presentation of a data node of type
  * nType.
@@ -493,6 +443,30 @@ void AlgAtom::accept( LayoutAtomVisitor& rVisitor )
     rVisitor.visit(*this);
 }
 
+sal_Int32 AlgAtom::getConnectorType()
+{
+    sal_Int32 nConnRout = 0;
+    sal_Int32 nBegSty = 0;
+    sal_Int32 nEndSty = 0;
+    if (maMap.count(oox::XML_connRout))
+        nConnRout = maMap.find(oox::XML_connRout)->second;
+    if (maMap.count(oox::XML_begSty))
+        nBegSty = maMap.find(oox::XML_begSty)->second;
+    if (maMap.count(oox::XML_endSty))
+        nEndSty = maMap.find(oox::XML_endSty)->second;
+
+    if (nConnRout == oox::XML_bend)
+        return oox::XML_bentConnector3;
+    if (nBegSty == oox::XML_arr && nEndSty == oox::XML_arr)
+        return oox::XML_leftRightArrow;
+    if (nBegSty == oox::XML_arr)
+        return oox::XML_leftArrow;
+    if (nEndSty == oox::XML_arr)
+        return oox::XML_rightArrow;
+
+    return oox::XML_rightArrow;
+}
+
 void AlgAtom::layoutShape( const ShapePtr& rShape,
                            const std::vector<Constraint>& rOwnConstraints )
 {
@@ -624,7 +598,7 @@ void AlgAtom::layoutShape( const ShapePtr& rShape,
             {
                 // There is no shape type "conn", replace it by an arrow based
                 // on the direction of the parent linear layout.
-                sal_Int32 nType = getConnectorType(pParent);
+                sal_Int32 nType = getConnectorType();
 
                 rShape->setSubType(nType);
                 rShape->getCustomShapeProperties()->setShapePresetType(nType);
@@ -695,6 +669,7 @@ void AlgAtom::layoutShape( const ShapePtr& rShape,
                 (rShape->getSize().Width - aChildSize.Width) / 2,
                 (rShape->getSize().Height - aChildSize.Height) / 2);
             const sal_Int32 nConnectorRadius = nRadius * cos(basegfx::deg2rad(nSpanAngle/nShapes));
+            const sal_Int32 nConnectorAngle = nSpanAngle > 0 ? 0 : 180;
 
             sal_Int32 idx = 0;
             for (auto & aCurrShape : rShape->getChildren())
@@ -715,10 +690,13 @@ void AlgAtom::layoutShape( const ShapePtr& rShape,
                 aCurrShape->setSize(aCurrSize);
                 aCurrShape->setChildSize(aCurrSize);
 
+                if (nRotationPath == XML_alongPath)
+                    aCurrShape->setRotation(fAngle * PER_DEGREE);
+
                 // connectors should be handled in conn, but we don't have
                 // reference to previous and next child, so it's easier here
-                if (nRotationPath == XML_alongPath || aCurrShape->getSubType() == XML_conn)
-                    aCurrShape->setRotation(fAngle * PER_DEGREE);
+                if (aCurrShape->getSubType() == XML_conn)
+                    aCurrShape->setRotation((nConnectorAngle + fAngle) * PER_DEGREE);
 
                 idx++;
             }
@@ -816,6 +794,14 @@ void AlgAtom::layoutShape( const ShapePtr& rShape,
 
             sal_Int32 nCount = rShape->getChildren().size();
             double fSpace = 0.3;
+            sal_Int32 nConnectorAngle = 0;
+            switch (nDir)
+            {
+            case XML_fromL: nConnectorAngle = 0; break;
+            case XML_fromR: nConnectorAngle = 180; break;
+            case XML_fromT: nConnectorAngle = 270; break;
+            case XML_fromB: nConnectorAngle = 90; break;
+            }
 
             // Find out which constraint is relevant for which (internal) name.
             LayoutPropertyMap aProperties;
@@ -892,6 +878,11 @@ void AlgAtom::layoutShape( const ShapePtr& rShape,
                 aCurrShape->setChildSize(aSize);
                 aCurrPos.X += nIncX * (aSize.Width + fSpace*aSize.Width);
                 aCurrPos.Y += nIncY * (aChildSize.Height + fSpace*aChildSize.Height);
+
+                // connectors should be handled in conn, but we don't have
+                // reference to previous and next child, so it's easier here
+                if (aCurrShape->getSubType() == XML_conn)
+                    aCurrShape->setRotation(nConnectorAngle * PER_DEGREE);
             }
             break;
         }
diff --git a/oox/source/drawingml/diagram/diagramlayoutatoms.hxx b/oox/source/drawingml/diagram/diagramlayoutatoms.hxx
index d70878e063aa..10ec9c42d040 100644
--- a/oox/source/drawingml/diagram/diagramlayoutatoms.hxx
+++ b/oox/source/drawingml/diagram/diagramlayoutatoms.hxx
@@ -178,6 +178,9 @@ private:
     ParamMap  maMap;
     /// Aspect ratio is not integer, so not part of maMap.
     double mfAspectRatio = 0;
+
+    /// Determines the connector shape type for conn algorithm
+    sal_Int32 getConnectorType();
 };
 
 typedef std::shared_ptr< AlgAtom > AlgAtomPtr;