loplugin:useuniqueptr in filter

Change-Id: I127b570bb1563dc75b21633019b3640f93715d77
Reviewed-on: https://gerrit.libreoffice.org/41495Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

filter/source/graphicfilter/idxf/dxf2mtf.cxx

@@ -574,7 +574,7 @@ void DXF2GDIMetaFile::DrawHatchEntity(const DXFHatchEntity & rE, const DXFTransf
             {
                 for ( std::deque<DXFEdgeType*>::size_type i = 0; i < rPathData.aEdges.size(); i++ )
                 {
-                    const DXFEdgeType* pEdge = rPathData.aEdges[ i ];
+                    const DXFEdgeType* pEdge = rPathData.aEdges[ i ].get();
                     switch( pEdge->nEdgeType )
                     {
                         case 1 :

filter/source/graphicfilter/idxf/dxfentrd.cxx

@@ -562,8 +562,6 @@ DXFBoundaryPathData::DXFBoundaryPathData() :
 
 DXFBoundaryPathData::~DXFBoundaryPathData()
 {
-    for (auto i: aEdges)
-        delete i;
 }
 
 bool DXFBoundaryPathData::EvaluateGroup( DXFGroupReader & rDGR )
@@ -619,10 +617,10 @@ bool DXFBoundaryPathData::EvaluateGroup( DXFGroupReader & rDGR )
             sal_Int32 nEdgeType = rDGR.GetI();
             switch( nEdgeType )
             {
-                case 1 : aEdges.push_back( new DXFEdgeTypeLine() ); break;
-                case 2 : aEdges.push_back( new DXFEdgeTypeCircularArc() ); break;
-                case 3 : aEdges.push_back( new DXFEdgeTypeEllipticalArc() ); break;
-                case 4 : aEdges.push_back( new DXFEdgeTypeSpline() ); break;
+                case 1 : aEdges.emplace_back( new DXFEdgeTypeLine() ); break;
+                case 2 : aEdges.emplace_back( new DXFEdgeTypeCircularArc() ); break;
+                case 3 : aEdges.emplace_back( new DXFEdgeTypeEllipticalArc() ); break;
+                case 4 : aEdges.emplace_back( new DXFEdgeTypeSpline() ); break;
             }
         }
         else if ( aEdges.size() )

filter/source/graphicfilter/idxf/dxfentrd.hxx

@@ -412,7 +412,7 @@ struct DXFBoundaryPathData
     sal_Int32           nPointIndex;
 
     std::unique_ptr<DXFVector[]> pP;
-    std::deque<DXFEdgeType*> aEdges;
+    std::deque<std::unique_ptr<DXFEdgeType>> aEdges;
 
     DXFBoundaryPathData();
     ~DXFBoundaryPathData();