Adding upstream version 4:24.2.0.upstream/4%24.2.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 651 insertions, 0 deletions

diff --git a/chart2/source/controller/main/SelectionHelper.cxx b/chart2/source/controller/main/SelectionHelper.cxx
new file mode 100644
index 0000000000..11fc5d9fae
--- /dev/null
+++ b/chart2/source/controller/main/SelectionHelper.cxx
@@ -0,0 +1,651 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <SelectionHelper.hxx>
+#include <ObjectIdentifier.hxx>
+#include <DiagramHelper.hxx>
+#include <Diagram.hxx>
+#include <ChartModelHelper.hxx>
+#include <ChartModel.hxx>
+
+#include <svx/svdpage.hxx>
+#include <svx/svditer.hxx>
+#include <svx/obj3d.hxx>
+#include <svx/svdopath.hxx>
+#include <vcl/svapp.hxx>
+#include <basegfx/point/b2dpoint.hxx>
+#include <osl/diagnose.h>
+
+namespace chart
+{
+using namespace ::com::sun::star;
+
+namespace
+{
+
+OUString lcl_getObjectName( SdrObject const * pObj )
+{
+    if(pObj)
+       return pObj->GetName();
+    return OUString();
+}
+
+void impl_selectObject( SdrObject* pObjectToSelect, DrawViewWrapper& rDrawViewWrapper )
+{
+    SolarMutexGuard aSolarGuard;
+
+    if(pObjectToSelect)
+    {
+        SelectionHelper aSelectionHelper( pObjectToSelect );
+        SdrObject* pMarkObj = aSelectionHelper.getObjectToMark();
+        rDrawViewWrapper.setMarkHandleProvider(&aSelectionHelper);
+        rDrawViewWrapper.MarkObject(pMarkObj);
+        rDrawViewWrapper.setMarkHandleProvider(nullptr);
+    }
+}
+
+}//anonymous namespace
+
+bool Selection::hasSelection() const
+{
+    return m_aSelectedOID.isValid();
+}
+
+OUString const & Selection::getSelectedCID() const
+{
+    return m_aSelectedOID.getObjectCID();
+}
+
+uno::Reference< drawing::XShape > const & Selection::getSelectedAdditionalShape() const
+{
+    return m_aSelectedOID.getAdditionalShape();
+}
+
+bool Selection::setSelection( const OUString& rCID )
+{
+    if ( rCID != m_aSelectedOID.getObjectCID() )
+    {
+        m_aSelectedOID = ObjectIdentifier( rCID );
+        return true;
+    }
+    return false;
+}
+
+bool Selection::setSelection( const uno::Reference< drawing::XShape >& xShape )
+{
+    if ( !( xShape == m_aSelectedOID.getAdditionalShape() ) )
+    {
+        clearSelection();
+        m_aSelectedOID = ObjectIdentifier( xShape );
+        return true;
+    }
+    return false;
+}
+
+void Selection::clearSelection()
+{
+    m_aSelectedOID = ObjectIdentifier();
+    m_aSelectedOID_beforeMouseDown = ObjectIdentifier();
+    m_aSelectedOID_selectOnlyIfNoDoubleClickIsFollowing = ObjectIdentifier();
+}
+
+bool Selection::maybeSwitchSelectionAfterSingleClickWasEnsured()
+{
+    if ( m_aSelectedOID_selectOnlyIfNoDoubleClickIsFollowing.isValid()
+         && m_aSelectedOID_selectOnlyIfNoDoubleClickIsFollowing != m_aSelectedOID )
+    {
+        m_aSelectedOID = m_aSelectedOID_selectOnlyIfNoDoubleClickIsFollowing;
+        m_aSelectedOID_selectOnlyIfNoDoubleClickIsFollowing = ObjectIdentifier();
+        return true;
+    }
+    return false;
+}
+
+void Selection::resetPossibleSelectionAfterSingleClickWasEnsured()
+{
+    if ( m_aSelectedOID_selectOnlyIfNoDoubleClickIsFollowing.isValid() )
+    {
+        m_aSelectedOID_selectOnlyIfNoDoubleClickIsFollowing = ObjectIdentifier();
+    }
+}
+
+void Selection::remindSelectionBeforeMouseDown()
+{
+    m_aSelectedOID_beforeMouseDown = m_aSelectedOID;
+}
+
+bool Selection::isSelectionDifferentFromBeforeMouseDown() const
+{
+    return ( m_aSelectedOID != m_aSelectedOID_beforeMouseDown );
+}
+
+void Selection::applySelection( DrawViewWrapper* pDrawViewWrapper )
+{
+    if( !pDrawViewWrapper )
+        return;
+
+    {
+        SolarMutexGuard aSolarGuard;
+        pDrawViewWrapper->UnmarkAll();
+    }
+    SdrObject* pObjectToSelect = nullptr;
+    if ( m_aSelectedOID.isAutoGeneratedObject() )
+    {
+        pObjectToSelect = pDrawViewWrapper->getNamedSdrObject( m_aSelectedOID.getObjectCID() );
+    }
+    else if( m_aSelectedOID.isAdditionalShape() )
+    {
+        pObjectToSelect = DrawViewWrapper::getSdrObject( m_aSelectedOID.getAdditionalShape() );
+    }
+
+    impl_selectObject( pObjectToSelect, *pDrawViewWrapper );
+}
+
+void Selection::adaptSelectionToNewPos( const Point& rMousePos, DrawViewWrapper const * pDrawViewWrapper
+                                       , bool bIsRightMouse, bool bWaitingForDoubleClick )
+{
+    if( !pDrawViewWrapper )
+        return;
+
+    //do not toggle multiclick selection if right clicked on the selected object or waiting for double click
+    bool bAllowMultiClickSelectionChange = !bIsRightMouse && !bWaitingForDoubleClick;
+
+    ObjectIdentifier aLastSelectedObject( m_aSelectedOID );
+
+    SolarMutexGuard aSolarGuard;
+
+    //bAllowMultiClickSelectionChange==true -> a second click on the same object can lead to a changed selection (e.g. series -> single data point)
+
+    //get object to select:
+    {
+        m_aSelectedOID_selectOnlyIfNoDoubleClickIsFollowing = ObjectIdentifier();
+
+        //the search for the object to select starts with the hit object deepest in the grouping hierarchy (a leaf in the tree)
+        //further we travel along the grouping hierarchy from child to parent
+        SdrObject* pNewObj = pDrawViewWrapper->getHitObject(rMousePos);
+        m_aSelectedOID = ObjectIdentifier( lcl_getObjectName( pNewObj ) );//name of pNewObj
+
+        //ignore handle only objects for hit test
+        while( pNewObj && m_aSelectedOID.getObjectCID().match( "HandlesOnly" ) )
+        {
+            pNewObj->SetMarkProtect(true);
+            pNewObj = pDrawViewWrapper->getHitObject(rMousePos);
+            m_aSelectedOID = ObjectIdentifier( lcl_getObjectName( pNewObj ) );
+        }
+
+        //accept only named objects while searching for the object to select
+        //this call may change m_aSelectedOID
+        if ( SelectionHelper::findNamedParent( pNewObj, m_aSelectedOID, true ) )
+        {
+            //if the so far found object is a multi click object further steps are necessary
+            while( ObjectIdentifier::isMultiClickObject( m_aSelectedOID.getObjectCID() ) )
+            {
+                bool bSameObjectAsLastSelected = ( aLastSelectedObject == m_aSelectedOID );
+                if( bSameObjectAsLastSelected )
+                {
+                    //if the same child is clicked again don't go up further
+                    break;
+                }
+                if ( ObjectIdentifier::areSiblings( aLastSelectedObject.getObjectCID(), m_aSelectedOID.getObjectCID() ) )
+                {
+                    //if a sibling of the last selected object is clicked don't go up further
+                    break;
+                }
+                ObjectIdentifier aLastChild = m_aSelectedOID;
+                if ( !SelectionHelper::findNamedParent( pNewObj, m_aSelectedOID, false ) )
+                {
+                    //take the one found so far
+                    break;
+                }
+                //if the last selected object is found don't go up further
+                //but take the last child if selection change is allowed
+                if ( aLastSelectedObject == m_aSelectedOID )
+                {
+                    if( bAllowMultiClickSelectionChange )
+                    {
+                        m_aSelectedOID = aLastChild;
+                    }
+                    else
+                        m_aSelectedOID_selectOnlyIfNoDoubleClickIsFollowing = aLastChild;
+                    break;
+                }
+            }
+
+            OSL_ENSURE(m_aSelectedOID.isValid(), "somehow lost selected object");
+        }
+        else
+        {
+            //maybe an additional shape was hit
+            if ( pNewObj )
+            {
+                m_aSelectedOID = ObjectIdentifier( uno::Reference< drawing::XShape >( pNewObj->getUnoShape(), uno::UNO_QUERY ) );
+            }
+            else
+            {
+                m_aSelectedOID = ObjectIdentifier();
+            }
+        }
+
+        if ( !m_aSelectedOID.isAdditionalShape() )
+        {
+            OUString aPageCID( ObjectIdentifier::createClassifiedIdentifier( OBJECTTYPE_PAGE, u"" ) );//@todo read CID from model
+
+            if ( !m_aSelectedOID.isAutoGeneratedObject() )
+            {
+                m_aSelectedOID = ObjectIdentifier( aPageCID );
+            }
+
+            //check whether the diagram was hit but not selected (e.g. because it has no filling):
+            OUString aDiagramCID = ObjectIdentifier::createClassifiedIdentifier( OBJECTTYPE_DIAGRAM, OUString::number( 0 ) );
+            OUString aWallCID( ObjectIdentifier::createClassifiedIdentifier( OBJECTTYPE_DIAGRAM_WALL, u"" ) );//@todo read CID from model
+            bool bBackGroundHit = m_aSelectedOID.getObjectCID() == aPageCID || m_aSelectedOID.getObjectCID() == aWallCID || !m_aSelectedOID.isAutoGeneratedObject();
+            if( bBackGroundHit )
+            {
+                //todo: if more than one diagram is available in future do check the list of all diagrams here
+                SdrObject* pDiagram = pDrawViewWrapper->getNamedSdrObject( aDiagramCID );
+                if( pDiagram )
+                {
+                    if( DrawViewWrapper::IsObjectHit( pDiagram, rMousePos ) )
+                    {
+                        m_aSelectedOID = ObjectIdentifier( aDiagramCID );
+                    }
+                }
+            }
+            //check whether the legend was hit but not selected (e.g. because it has no filling):
+            if( bBackGroundHit || m_aSelectedOID.getObjectCID() == aDiagramCID )
+            {
+                OUString aLegendCID( ObjectIdentifier::createClassifiedIdentifierForParticle( ObjectIdentifier::createParticleForLegend(nullptr) ) );//@todo read CID from model
+                SdrObject* pLegend = pDrawViewWrapper->getNamedSdrObject( aLegendCID );
+                if( pLegend )
+                {
+                    if( DrawViewWrapper::IsObjectHit( pLegend, rMousePos ) )
+                    {
+                        m_aSelectedOID = ObjectIdentifier( aLegendCID );
+                    }
+                }
+            }
+        }
+    }
+
+    if ( bIsRightMouse && m_aSelectedOID_selectOnlyIfNoDoubleClickIsFollowing.isValid() )
+    {
+        m_aSelectedOID_selectOnlyIfNoDoubleClickIsFollowing = ObjectIdentifier();
+    }
+}
+
+bool Selection::isResizeableObjectSelected() const
+{
+    ObjectType eObjectType = m_aSelectedOID.getObjectType();
+    switch( eObjectType )
+    {
+        case OBJECTTYPE_DIAGRAM:
+        case OBJECTTYPE_DIAGRAM_WALL:
+        case OBJECTTYPE_SHAPE:
+        case OBJECTTYPE_LEGEND:
+            return true;
+        default:
+            return false;
+    }
+}
+
+bool Selection::isRotateableObjectSelected( const rtl::Reference<::chart::ChartModel>& xChartModel ) const
+{
+    return SelectionHelper::isRotateableObject( m_aSelectedOID.getObjectCID(), xChartModel );
+}
+
+bool Selection::isDragableObjectSelected() const
+{
+    return m_aSelectedOID.isDragableObject();
+}
+
+bool Selection::isAdditionalShapeSelected() const
+{
+    return m_aSelectedOID.isAdditionalShape();
+}
+
+bool SelectionHelper::findNamedParent( SdrObject*& pInOutObject
+                                      , OUString& rOutName
+                                      , bool bGivenObjectMayBeResult )
+{
+    SolarMutexGuard aSolarGuard;
+    //find the deepest named group
+    SdrObject* pObj = pInOutObject;
+    OUString aName;
+    if( bGivenObjectMayBeResult )
+        aName = lcl_getObjectName( pObj );
+
+    while( pObj && !ObjectIdentifier::isCID( aName  )  )
+    {
+        SdrObjList* pObjList = pObj->getParentSdrObjListFromSdrObject();
+        if( !pObjList )
+            return false;
+        SdrObject* pOwner = pObjList->getSdrObjectFromSdrObjList();
+        if( !pOwner )
+            return false;
+        pObj = pOwner;
+        aName = lcl_getObjectName( pObj );
+    }
+
+    if(!pObj)
+        return false;
+    if(aName.isEmpty())
+        return false;
+
+    pInOutObject = pObj;
+    rOutName = aName;
+    return true;
+}
+
+bool SelectionHelper::findNamedParent( SdrObject*& pInOutObject
+                                      , ObjectIdentifier& rOutObject
+                                      , bool bGivenObjectMayBeResult )
+{
+    OUString aName;
+    if ( findNamedParent( pInOutObject, aName, bGivenObjectMayBeResult ) )
+    {
+        rOutObject = ObjectIdentifier( aName );
+        return true;
+    }
+    return false;
+}
+
+bool SelectionHelper::isDragableObjectHitTwice( const Point& rMPos
+                    , const OUString& rNameOfSelectedObject
+                    , const DrawViewWrapper& rDrawViewWrapper )
+{
+    if(rNameOfSelectedObject.isEmpty())
+        return false;
+    if( !ObjectIdentifier::isDragableObject(rNameOfSelectedObject) )
+        return false;
+    SolarMutexGuard aSolarGuard;
+    SdrObject* pObj = rDrawViewWrapper.getNamedSdrObject( rNameOfSelectedObject );
+    return DrawViewWrapper::IsObjectHit( pObj, rMPos );
+}
+
+OUString SelectionHelper::getHitObjectCID(
+    const Point& rMPos,
+    DrawViewWrapper const & rDrawViewWrapper,
+    bool bGetDiagramInsteadOf_Wall )
+{
+    SolarMutexGuard aSolarGuard;
+    OUString aRet;
+
+    SdrObject* pNewObj = rDrawViewWrapper.getHitObject(rMPos);
+    aRet = lcl_getObjectName( pNewObj );//name of pNewObj
+
+    //ignore handle only objects for hit test
+    while( pNewObj && aRet.match("HandlesOnly") )
+    {
+        pNewObj->SetMarkProtect(true);
+        pNewObj = rDrawViewWrapper.getHitObject(rMPos);
+        aRet = lcl_getObjectName( pNewObj );
+    }
+
+    //accept only named objects while searching for the object to select
+    if( !findNamedParent( pNewObj, aRet, true ) )
+    {
+        aRet.clear();
+    }
+
+    OUString aPageCID( ObjectIdentifier::createClassifiedIdentifier( OBJECTTYPE_PAGE, u"" ) );//@todo read CID from model
+    //get page when nothing was hit
+    if( aRet.isEmpty() && !pNewObj )
+    {
+        aRet = aPageCID;
+    }
+
+    //get diagram instead wall or page if hit inside diagram
+    if( !aRet.isEmpty() )
+    {
+        if( aRet == aPageCID )
+        {
+            OUString aDiagramCID = ObjectIdentifier::createClassifiedIdentifier( OBJECTTYPE_DIAGRAM, OUString::number( 0 ) );
+            //todo: if more than one diagram is available in future do check the list of all diagrams here
+            SdrObject* pDiagram = rDrawViewWrapper.getNamedSdrObject( aDiagramCID );
+            if( pDiagram )
+            {
+                if( DrawViewWrapper::IsObjectHit( pDiagram, rMPos ) )
+                {
+                    aRet = aDiagramCID;
+                }
+            }
+        }
+        else if( bGetDiagramInsteadOf_Wall )
+        {
+            OUString aWallCID( ObjectIdentifier::createClassifiedIdentifier( OBJECTTYPE_DIAGRAM_WALL, u"" ) );//@todo read CID from model
+
+            if( aRet == aWallCID )
+            {
+                OUString aDiagramCID = ObjectIdentifier::createClassifiedIdentifier( OBJECTTYPE_DIAGRAM, OUString::number( 0 ) );
+                aRet = aDiagramCID;
+            }
+        }
+    }
+
+    return aRet;
+    // \\- solar mutex
+}
+
+bool SelectionHelper::isRotateableObject( std::u16string_view rCID
+                    , const rtl::Reference<::chart::ChartModel>& xChartModel )
+{
+    if( !ObjectIdentifier::isRotateableObject( rCID ) )
+        return false;
+
+    sal_Int32 nDimensionCount = xChartModel->getFirstChartDiagram()->getDimension();
+
+    return nDimensionCount == 3;
+}
+
+SelectionHelper::SelectionHelper( SdrObject* pSelectedObj )
+                      : m_pSelectedObj( pSelectedObj ), m_pMarkObj(nullptr)
+{
+
+}
+SelectionHelper::~SelectionHelper()
+{
+}
+
+bool SelectionHelper::getFrameDragSingles()
+{
+    //true == green == surrounding handles
+    return DynCastE3dObject( m_pSelectedObj) == nullptr;
+}
+
+SdrObject* SelectionHelper::getMarkHandlesObject( SdrObject* pObj )
+{
+    if(!pObj)
+        return nullptr;
+    OUString aName( lcl_getObjectName( pObj ) );
+    if( aName.match("MarkHandles") || aName.match("HandlesOnly") )
+        return pObj;
+    if( !aName.isEmpty() )//don't get the markhandles of a different object
+        return nullptr;
+
+    //search for a child with name "MarkHandles" or "HandlesOnly"
+    SolarMutexGuard aSolarGuard;
+    SdrObjList* pSubList = pObj->GetSubList();
+    if(pSubList)
+    {
+        SdrObjListIter aIterator(pSubList, SdrIterMode::Flat);
+        while (aIterator.IsMore())
+        {
+            SdrObject* pMarkHandles = SelectionHelper::getMarkHandlesObject( aIterator.Next() );
+            if( pMarkHandles )
+                return pMarkHandles;
+        }
+    }
+    return nullptr;
+}
+
+SdrObject* SelectionHelper::getObjectToMark()
+{
+    //return the selected object itself
+    //or a specific other object if that exists
+    SdrObject* pObj = m_pSelectedObj;
+    m_pMarkObj = pObj;
+
+    //search for a child with name "MarkHandles" or "HandlesOnly"
+    if(pObj)
+    {
+        SolarMutexGuard aSolarGuard;
+        SdrObjList* pSubList = pObj->GetSubList();
+        if(pSubList)
+        {
+            SdrObjListIter aIterator(pSubList, SdrIterMode::Flat);
+            while (aIterator.IsMore())
+            {
+                SdrObject* pMarkHandles = SelectionHelper::getMarkHandlesObject( aIterator.Next() );
+                if( pMarkHandles )
+                {
+                    m_pMarkObj = pMarkHandles;
+                    break;
+                }
+            }
+        }
+    }
+    return m_pMarkObj;
+}
+
+E3dScene* SelectionHelper::getSceneToRotate( SdrObject* pObj )
+{
+    //search whether the object or one of its children is a 3D object
+    //if so, return the accessory 3DScene
+
+    E3dObject* pRotateable = nullptr;
+
+    if(pObj)
+    {
+        pRotateable = DynCastE3dObject(pObj);
+        if( !pRotateable )
+        {
+            SolarMutexGuard aSolarGuard;
+            SdrObjList* pSubList = pObj->GetSubList();
+            if(pSubList)
+            {
+                SdrObjListIter aIterator(pSubList, SdrIterMode::DeepWithGroups);
+                while( aIterator.IsMore() && !pRotateable )
+                {
+                    pRotateable = DynCastE3dObject(aIterator.Next());
+                }
+            }
+        }
+    }
+
+    E3dScene* pScene(nullptr);
+
+    if(pRotateable)
+    {
+        SolarMutexGuard aSolarGuard;
+        pScene = pRotateable->getRootE3dSceneFromE3dObject();
+    }
+
+    return pScene;
+}
+
+bool SelectionHelper::getMarkHandles( SdrHdlList& rHdlList )
+{
+    SolarMutexGuard aSolarGuard;
+
+    //@todo -> more flexible handle creation
+    //2 scenarios possible:
+    //1. add an additional invisible shape as a child to the selected object
+    //this child needs to be named somehow and handles need to be generated there from...
+    //or 2. offer a central service per view where renderer and so can register for handle creation for a special shape
+    //.. or 3. feature from drawinglayer to create handles for each shape... (bad performance... ?) ?
+
+    //scenario 1 is now used:
+    //if a child with name MarkHandles exists
+    //this child is marked instead of the logical selected object
+
+/*
+    //if a special mark object was found
+    //that object should be used for marking only
+    if( m_pMarkObj != m_pSelectedObj)
+        return false;
+*/
+    //if a special mark object was found
+    //that object should be used to create handles from
+    if( m_pMarkObj && m_pMarkObj != m_pSelectedObj)
+    {
+        rHdlList.Clear();
+        if( auto pPathObj = dynamic_cast<const SdrPathObj*>( m_pMarkObj) )
+        {
+            //if th object is a polygon
+            //from each point a handle is generated
+            const ::basegfx::B2DPolyPolygon& rPolyPolygon = pPathObj->GetPathPoly();
+            for( sal_uInt32 nN = 0; nN < rPolyPolygon.count(); nN++)
+            {
+                const ::basegfx::B2DPolygon& aPolygon(rPolyPolygon.getB2DPolygon(nN));
+                for( sal_uInt32 nM = 0; nM < aPolygon.count(); nM++)
+                {
+                    const ::basegfx::B2DPoint aPoint(aPolygon.getB2DPoint(nM));
+                    rHdlList.AddHdl(std::make_unique<SdrHdl>(Point(basegfx::fround(aPoint.getX()), basegfx::fround(aPoint.getY())), SdrHdlKind::Poly));
+                }
+            }
+            return true;
+        }
+        else
+            return false; //use the special MarkObject for marking
+    }
+
+    //@todo:
+    //add and document good marking defaults ...
+
+    rHdlList.Clear();
+
+    SdrObject* pObj = m_pSelectedObj;
+    if(!pObj)
+        return false;
+    SdrObjList* pSubList = pObj->GetSubList();
+    if( !pSubList )//no group object !pObj->IsGroupObject()
+        return false;
+
+    OUString aName( lcl_getObjectName( pObj ) );
+    ObjectType eObjectType( ObjectIdentifier::getObjectType( aName ) );
+    if( eObjectType == OBJECTTYPE_DATA_POINT
+        || eObjectType == OBJECTTYPE_DATA_LABEL
+        || eObjectType == OBJECTTYPE_LEGEND_ENTRY
+        || eObjectType == OBJECTTYPE_AXIS_UNITLABEL )
+    {
+        return false;
+    }
+
+    SdrObjListIter aIterator(pSubList, SdrIterMode::Flat);
+
+    while (aIterator.IsMore())
+    {
+        SdrObject* pSubObj = aIterator.Next();
+        if( eObjectType == OBJECTTYPE_DATA_SERIES )
+        {
+            OUString aSubName( lcl_getObjectName( pSubObj ) );
+            ObjectType eSubObjectType( ObjectIdentifier::getObjectType( aSubName ) );
+            if( eSubObjectType!=OBJECTTYPE_DATA_POINT  )
+                return false;
+        }
+
+        Point aPos = pSubObj->GetCurrentBoundRect().Center();
+        rHdlList.AddHdl(std::make_unique<SdrHdl>(aPos,SdrHdlKind::Poly));
+    }
+    return true;
+}
+
+} //namespace chart
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */