Avoid passing references in EESchema

This returns the connection list by value.  This allows easier Python
use

Also renames m_End() to GetEnd()

eeschema/bus-wire-junction.cpp

@@ -42,21 +42,28 @@
 #include <tools/ee_selection_tool.h>
 
 
-void SCH_EDIT_FRAME::GetSchematicConnections( std::vector< wxPoint >& aConnections )
+std::vector<wxPoint> SCH_EDIT_FRAME::GetSchematicConnections()
 {
+    std::vector<wxPoint> retval;
+
     for( auto item : GetScreen()->Items() )
     {
         // Avoid items that are changing
         if( !( item->GetEditFlags() & ( IS_DRAGGED | IS_MOVED | IS_DELETED ) ) )
-            item->GetConnectionPoints( aConnections );
+        {
+            std::vector<wxPoint> pts = item->GetConnectionPoints();
+            retval.insert( retval.end(), pts.begin(), pts.end() );
+        }
     }
 
     // We always have some overlapping connection points.  Drop duplicates here
-    std::sort( aConnections.begin(), aConnections.end(),
+    std::sort( retval.begin(), retval.end(),
             []( const wxPoint& a, const wxPoint& b ) -> bool
             { return a.x < b.x || (a.x == b.x && a.y < b.y); } );
-    aConnections.erase(
-            std::unique( aConnections.begin(), aConnections.end() ), aConnections.end() );
+    retval.erase(
+            std::unique( retval.begin(), retval.end() ), retval.end() );
+
+    return retval;
 }
 
 
@@ -357,7 +364,7 @@ bool SCH_EDIT_FRAME::BreakSegmentsOnJunctions( SCH_SCREEN* aScreen )
     {
         SCH_BUS_WIRE_ENTRY* entry = static_cast<SCH_BUS_WIRE_ENTRY*>( item );
         point_set.insert( entry->GetPosition() );
-        point_set.insert( entry->m_End() );
+        point_set.insert( entry->GetEnd() );
     }
 
 

eeschema/connection_graph.cpp

@@ -448,8 +448,7 @@ void CONNECTION_GRAPH::updateItemConnectivity( const SCH_SHEET_PATH& aSheet,
 
     for( SCH_ITEM* item : aItemList )
     {
-        std::vector< wxPoint > points;
-        item->GetConnectionPoints( points );
+        std::vector< wxPoint > points = item->GetConnectionPoints();
         item->ConnectedItems( aSheet ).clear();
 
         if( item->Type() == SCH_SHEET_T )

eeschema/sch_bus_entry.cpp

@@ -80,11 +80,11 @@ EDA_ITEM* SCH_BUS_BUS_ENTRY::Clone() const
 
 bool SCH_BUS_ENTRY_BASE::doIsConnected( const wxPoint& aPosition ) const
 {
-    return ( m_pos == aPosition || m_End() == aPosition );
+    return ( m_pos == aPosition || GetEnd() == aPosition );
 }
 
 
-wxPoint SCH_BUS_ENTRY_BASE::m_End() const
+wxPoint SCH_BUS_ENTRY_BASE::GetEnd() const
 {
     return wxPoint( m_pos.x + m_size.x, m_pos.y + m_size.y );
 }
@@ -114,7 +114,7 @@ const EDA_RECT SCH_BUS_ENTRY_BASE::GetBoundingBox() const
     EDA_RECT box;
 
     box.SetOrigin( m_pos );
-    box.SetEnd( m_End() );
+    box.SetEnd( GetEnd() );
 
     box.Normalize();
     box.Inflate( ( GetPenWidth() / 2 ) + 1 );
@@ -178,7 +178,7 @@ void SCH_BUS_WIRE_ENTRY::GetEndPoints( std::vector< DANGLING_END_ITEM >& aItemLi
     DANGLING_END_ITEM item( WIRE_ENTRY_END, this, m_pos );
     aItemList.push_back( item );
 
-    DANGLING_END_ITEM item1( WIRE_ENTRY_END, this, m_End() );
+    DANGLING_END_ITEM item1( WIRE_ENTRY_END, this, GetEnd() );
     aItemList.push_back( item1 );
 }
 
@@ -188,7 +188,7 @@ void SCH_BUS_BUS_ENTRY::GetEndPoints( std::vector< DANGLING_END_ITEM >& aItemLis
     DANGLING_END_ITEM item( BUS_ENTRY_END, this, m_pos );
     aItemList.push_back( item );
 
-    DANGLING_END_ITEM item1( BUS_ENTRY_END, this, m_End() );
+    DANGLING_END_ITEM item1( BUS_ENTRY_END, this, GetEnd() );
     aItemList.push_back( item1 );
 }
 
@@ -200,8 +200,8 @@ void SCH_BUS_ENTRY_BASE::Print( RENDER_SETTINGS* aSettings, const wxPoint& aOffs
             aSettings->GetLayerColor( m_Layer ) : GetStrokeColor();
     int     penWidth = ( GetPenWidth() == 0 ) ? aSettings->GetDefaultPenWidth() : GetPenWidth();
 
-    GRLine( nullptr, DC, m_pos.x + aOffset.x, m_pos.y + aOffset.y, m_End().x + aOffset.x,
-            m_End().y + aOffset.y, penWidth, color,
+    GRLine( nullptr, DC, m_pos.x + aOffset.x, m_pos.y + aOffset.y, GetEnd().x + aOffset.x,
+            GetEnd().y + aOffset.y, penWidth, color,
             GetwxPenStyle( (PLOT_DASH_TYPE) GetStrokeStyle() ) );
 }
 
@@ -255,7 +255,7 @@ bool SCH_BUS_WIRE_ENTRY::UpdateDanglingState( std::vector<DANGLING_END_ITEM>& aI
         case WIRE_END_END:
             if( m_pos == each_item.GetPosition() )
                 has_wire[0] = true;
-            else if( m_End() == each_item.GetPosition() )
+            else if( GetEnd() == each_item.GetPosition() )
                 has_wire[1] = true;
 
             break;
@@ -267,7 +267,7 @@ bool SCH_BUS_WIRE_ENTRY::UpdateDanglingState( std::vector<DANGLING_END_ITEM>& aI
         case BUS_END_END:
             if( IsPointOnSegment( seg_start, each_item.GetPosition(), m_pos ) )
                 has_bus[0] = true;
-            else if( IsPointOnSegment( seg_start, each_item.GetPosition(), m_End() ) )
+            else if( IsPointOnSegment( seg_start, each_item.GetPosition(), GetEnd() ) )
                 has_bus[1] = true;
 
             break;
@@ -316,7 +316,7 @@ bool SCH_BUS_BUS_ENTRY::UpdateDanglingState( std::vector<DANGLING_END_ITEM>& aIt
         case BUS_END_END:
             if( IsPointOnSegment( seg_start, each_item.GetPosition(), m_pos ) )
                 m_isDanglingStart = false;
-            if( IsPointOnSegment( seg_start, each_item.GetPosition(), m_End() ) )
+            if( IsPointOnSegment( seg_start, each_item.GetPosition(), GetEnd() ) )
                 m_isDanglingEnd = false;
             break;
         default:
@@ -334,10 +334,9 @@ bool SCH_BUS_ENTRY_BASE::IsDangling() const
 }
 
 
-void SCH_BUS_ENTRY_BASE::GetConnectionPoints( std::vector< wxPoint >& aPoints ) const
+std::vector<wxPoint> SCH_BUS_ENTRY_BASE::GetConnectionPoints() const
 {
-    aPoints.push_back( m_pos );
-    aPoints.push_back( m_End() );
+    return { m_pos, GetEnd() };
 }
 
 
@@ -371,7 +370,7 @@ bool SCH_BUS_ENTRY_BASE::HitTest( const wxPoint& aPosition, int aAccuracy ) cons
     if( aAccuracy == 0 )
         aAccuracy = ( GetPenWidth() / 2 ) + 4;
 
-    return TestSegmentHit( aPosition, m_pos, m_End(), aAccuracy );
+    return TestSegmentHit( aPosition, m_pos, GetEnd(), aAccuracy );
 }
 
 
@@ -400,7 +399,7 @@ void SCH_BUS_ENTRY_BASE::Plot( PLOTTER* aPlotter )
     aPlotter->SetColor( color );
     aPlotter->SetDash( GetStrokeStyle() );
     aPlotter->MoveTo( m_pos );
-    aPlotter->FinishTo( m_End() );
+    aPlotter->FinishTo( GetEnd() );
 }
 
 
@@ -443,10 +442,10 @@ bool SCH_BUS_ENTRY_BASE::operator <( const SCH_ITEM& aItem ) const
     if( GetPosition().y != component->GetPosition().y )
         return GetPosition().y < component->GetPosition().y;
 
-    if( m_End().x != component->m_End().x )
-        return m_End().x < component->m_End().x;
+    if( GetEnd().x != component->GetEnd().x )
+        return GetEnd().x < component->GetEnd().x;
 
-    return m_End().y < component->m_End().y;
+    return GetEnd().y < component->GetEnd().y;
 }
 
 

eeschema/sch_bus_entry.h

@@ -66,7 +66,7 @@ public:
      */
     bool IsMovableFromAnchorPoint() override { return false; }
 
-    wxPoint m_End() const;
+    wxPoint GetEnd() const;
 
     wxSize GetSize() const { return m_size; }
 
@@ -105,7 +105,7 @@ public:
 
     bool IsConnectable() const override { return true; }
 
-    void GetConnectionPoints( std::vector< wxPoint >& aPoints ) const override;
+    std::vector<wxPoint> GetConnectionPoints() const override;
 
     wxPoint GetPosition() const override { return m_pos; }
     void SetPosition( const wxPoint& aPosition ) override { m_pos = aPosition; }

eeschema/sch_component.cpp

@@ -1541,8 +1541,10 @@ wxPoint SCH_COMPONENT::GetPinPhysicalPosition( const LIB_PIN* Pin ) const
 }
 
 
-void SCH_COMPONENT::GetConnectionPoints( std::vector< wxPoint >& aPoints ) const
+std::vector<wxPoint> SCH_COMPONENT::GetConnectionPoints() const
 {
+    std::vector<wxPoint> retval;
+
     for( const std::unique_ptr<SCH_PIN>& pin : m_pins )
     {
         // Collect only pins attached to the current unit and convert.
@@ -1556,8 +1558,10 @@ void SCH_COMPONENT::GetConnectionPoints( std::vector< wxPoint >& aPoints ) const
         if( pin_convert > 0 && pin_convert != GetConvert() )
             continue;
 
-        aPoints.push_back( m_transform.TransformCoordinate( pin->GetLocalPosition() ) + m_Pos );
+        retval.push_back( m_transform.TransformCoordinate( pin->GetLocalPosition() ) + m_Pos );
     }
+
+    return retval;
 }
 
 

eeschema/sch_component.h

@@ -628,7 +628,7 @@ public:
      */
     bool IsInNetlist() const;
 
-    void GetConnectionPoints( std::vector<wxPoint>& aPoints ) const override;
+    std::vector<wxPoint> GetConnectionPoints() const override;
 
     SEARCH_RESULT Visit( INSPECTOR inspector, void* testData, const KICAD_T scanTypes[] ) override;
 

eeschema/sch_edit_frame.cpp

@@ -1070,8 +1070,7 @@ void SCH_EDIT_FRAME::AddItemToScreenAndUndoList( SCH_SCREEN* aScreen, SCH_ITEM*
 
     if( !aItem->IsMoving() && aItem->IsConnectable() )
     {
-        std::vector< wxPoint > pts;
-        aItem->GetConnectionPoints( pts );
+        std::vector< wxPoint > pts = aItem->GetConnectionPoints();
 
         for( auto i = pts.begin(); i != pts.end(); i++ )
         {

eeschema/sch_edit_frame.h

@@ -573,9 +573,9 @@ public:
     /**
      * Collects a unique list of all possible connection points in the schematic.
      *
-     * @param aConnections vector of connections
+     * @return vector of connections
      */
-    void GetSchematicConnections( std::vector< wxPoint >& aConnections );
+    std::vector<wxPoint> GetSchematicConnections();
 
     void OnOpenPcbnew( wxCommandEvent& event );
     void OnOpenCvpcb( wxCommandEvent& event );

eeschema/sch_item.h

@@ -383,7 +383,7 @@ public:
      *
      * @param aPoints List of connection points to add to.
      */
-    virtual void GetConnectionPoints( std::vector< wxPoint >& aPoints ) const { }
+    virtual std::vector<wxPoint> GetConnectionPoints() const { return {}; }
 
     /**
      * Clears all of the connection items from the list.

eeschema/sch_junction.cpp

@@ -139,9 +139,9 @@ void SCH_JUNCTION::GetEndPoints( std::vector <DANGLING_END_ITEM>& aItemList )
 }
 
 
-void SCH_JUNCTION::GetConnectionPoints( std::vector< wxPoint >& aPoints ) const
+std::vector<wxPoint> SCH_JUNCTION::GetConnectionPoints() const
 {
-    aPoints.push_back( m_pos );
+    return { m_pos };
 }
 
 

eeschema/sch_junction.h

@@ -76,7 +76,7 @@ public:
 
     bool IsConnectable() const override { return true; }
 
-    void GetConnectionPoints( std::vector< wxPoint >& aPoints ) const override;
+    std::vector<wxPoint> GetConnectionPoints() const override;
 
     bool CanConnect( const SCH_ITEM* aItem ) const override
     {

eeschema/sch_legacy_plugin.cpp

@@ -2263,12 +2263,12 @@ void SCH_LEGACY_PLUGIN::saveBusEntry( SCH_BUS_ENTRY_BASE* aBusEntry )
         m_out->Print( 0, "Entry Wire Line\n\t%-4d %-4d %-4d %-4d\n",
                       Iu2Mils( aBusEntry->GetPosition().x ),
                       Iu2Mils( aBusEntry->GetPosition().y ),
-                      Iu2Mils( aBusEntry->m_End().x ), Iu2Mils( aBusEntry->m_End().y ) );
+                      Iu2Mils( aBusEntry->GetEnd().x ), Iu2Mils( aBusEntry->GetEnd().y ) );
     else
         m_out->Print( 0, "Entry Bus Bus\n\t%-4d %-4d %-4d %-4d\n",
                       Iu2Mils( aBusEntry->GetPosition().x ),
                       Iu2Mils( aBusEntry->GetPosition().y ),
-                      Iu2Mils( aBusEntry->m_End().x ), Iu2Mils( aBusEntry->m_End().y ) );
+                      Iu2Mils( aBusEntry->GetEnd().x ), Iu2Mils( aBusEntry->GetEnd().y ) );
 }
 
 

eeschema/sch_line.cpp

@@ -601,10 +601,9 @@ bool SCH_LINE::CanConnect( const SCH_ITEM* aItem ) const
 }
 
 
-void SCH_LINE::GetConnectionPoints( std::vector< wxPoint >& aPoints ) const
+std::vector<wxPoint> SCH_LINE::GetConnectionPoints() const
 {
-    aPoints.push_back( m_start );
-    aPoints.push_back( m_end );
+    return { m_start, m_end };
 }
 
 

eeschema/sch_line.h

@@ -197,7 +197,7 @@ public:
 
     bool IsConnectable() const override;
 
-    void GetConnectionPoints( std::vector< wxPoint >& aPoints ) const override;
+    std::vector<wxPoint> GetConnectionPoints() const override;
 
     void GetSelectedPoints( std::vector< wxPoint >& aPoints ) const;
 

eeschema/sch_no_connect.cpp

@@ -135,9 +135,9 @@ void SCH_NO_CONNECT::Rotate( wxPoint aPosition )
 }
 
 
-void SCH_NO_CONNECT::GetConnectionPoints( std::vector< wxPoint >& aPoints ) const
+std::vector<wxPoint> SCH_NO_CONNECT::GetConnectionPoints() const
 {
-    aPoints.push_back( m_pos );
+    return { m_pos };
 }
 
 

eeschema/sch_no_connect.h

@@ -94,7 +94,7 @@ public:
                 aItem->Type() == SCH_COMPONENT_T;
     }
 
-    void GetConnectionPoints( std::vector< wxPoint >& aPoints ) const override;
+    std::vector<wxPoint> GetConnectionPoints() const override;
 
     wxString GetSelectMenuText( EDA_UNITS aUnits ) const override
     {

eeschema/sch_painter.cpp

@@ -1722,7 +1722,7 @@ void SCH_PAINTER::draw( SCH_BUS_ENTRY_BASE *aEntry, int aLayer )
         line.SetBrightened();
 
     line.SetStartPoint( aEntry->GetPosition() );
-    line.SetEndPoint( aEntry->m_End() );
+    line.SetEndPoint( aEntry->GetEnd() );
     line.SetStroke( aEntry->GetStroke() );
 
     COLOR4D color = getRenderColor( aEntry, LAYER_WIRE, drawingShadows );
@@ -1744,7 +1744,7 @@ void SCH_PAINTER::draw( SCH_BUS_ENTRY_BASE *aEntry, int aLayer )
                            aEntry->GetPenWidth() + ( TARGET_BUSENTRY_RADIUS / 2 ) );
 
     if( aEntry->IsDanglingEnd() )
-        m_gal->DrawCircle( aEntry->m_End(),
+        m_gal->DrawCircle( aEntry->GetEnd(),
                            aEntry->GetPenWidth() + ( TARGET_BUSENTRY_RADIUS / 2 ) );
 }
 

eeschema/sch_sexpr_plugin.cpp

@@ -1113,7 +1113,7 @@ void SCH_SEXPR_PLUGIN::saveBusEntry( SCH_BUS_ENTRY_BASE* aBusEntry, int aNestLev
     {
         SCH_LINE busEntryLine( aBusEntry->GetPosition(), LAYER_BUS );
 
-        busEntryLine.SetEndPoint( aBusEntry->m_End() );
+        busEntryLine.SetEndPoint( aBusEntry->GetEnd() );
         saveLine( &busEntryLine, aNestLevel );
     }
     else

eeschema/sch_sheet.cpp

@@ -855,10 +855,14 @@ bool SCH_SHEET::UpdateDanglingState( std::vector<DANGLING_END_ITEM>& aItemList,
 }
 
 
-void SCH_SHEET::GetConnectionPoints( std::vector< wxPoint >& aPoints ) const
+std::vector<wxPoint> SCH_SHEET::GetConnectionPoints() const
 {
+    std::vector<wxPoint> retval;
+
     for( SCH_SHEET_PIN* sheetPin : m_pins )
-        aPoints.push_back( sheetPin->GetPosition() );
+        retval.push_back( sheetPin->GetPosition() );
+
+    return retval;
 }
 
 

eeschema/sch_sheet.h

@@ -550,7 +550,7 @@ public:
                 ( aItem->Type() == SCH_NO_CONNECT_T );
     }
 
-    void GetConnectionPoints( std::vector< wxPoint >& aPoints ) const override;
+    std::vector<wxPoint> GetConnectionPoints() const override;
 
     SEARCH_RESULT Visit( INSPECTOR inspector, void* testData, const KICAD_T scanTypes[] ) override;
 

eeschema/sch_text.cpp

@@ -425,13 +425,13 @@ bool SCH_TEXT::UpdateDanglingState( std::vector<DANGLING_END_ITEM>& aItemList,
 }
 
 
-void SCH_TEXT::GetConnectionPoints( std::vector< wxPoint >& aPoints ) const
+std::vector<wxPoint> SCH_TEXT::GetConnectionPoints() const
 {
     // Normal text labels do not have connection points.  All others do.
     if( Type() == SCH_TEXT_T )
-        return;
+        return {};
 
-    aPoints.push_back( GetTextPos() );
+    return { GetTextPos() };
 }
 
 

eeschema/sch_text.h

@@ -304,7 +304,7 @@ public:
     bool IsDangling() const override { return m_isDangling; }
     void SetIsDangling( bool aIsDangling ) { m_isDangling = aIsDangling; }
 
-    void GetConnectionPoints( std::vector< wxPoint >& aPoints ) const override;
+    std::vector<wxPoint> GetConnectionPoints() const override;
 
     wxString GetSelectMenuText( EDA_UNITS aUnits ) const override;
 

eeschema/tools/sch_edit_tool.cpp

@@ -1002,11 +1002,15 @@ int SCH_EDIT_TOOL::DoDelete( const TOOL_EVENT& aEvent )
         if( !sch_item )
             continue;
 
+        if( sch_item->IsConnectable() )
+        {
+            std::vector<wxPoint> tmp_pts = sch_item->GetConnectionPoints();
+            pts.insert( pts.end(), tmp_pts.begin(), tmp_pts.end() );
+        }
+
         if( sch_item->Type() == SCH_JUNCTION_T )
         {
             sch_item->SetFlags( STRUCT_DELETED );
-            sch_item->GetConnectionPoints( pts );
-
             // clean up junctions at the end
         }
         else
@@ -1015,9 +1019,6 @@ int SCH_EDIT_TOOL::DoDelete( const TOOL_EVENT& aEvent )
             saveCopyInUndoList( item, UNDO_REDO::DELETED, appendToUndo );
             appendToUndo = true;
 
-            if( sch_item && sch_item->IsConnectable() )
-                sch_item->GetConnectionPoints( pts );
-
             updateView( sch_item );
 
             if( sch_item->Type() == SCH_SHEET_PIN_T )

eeschema/tools/sch_line_wire_bus_tool.cpp

@@ -364,7 +364,7 @@ SCH_LINE* SCH_LINE_WIRE_BUS_TOOL::doUnfoldBus( const wxString& aNet )
     m_busUnfold.entry->SetParent( m_frame->GetScreen() );
     m_frame->AddToScreen( m_busUnfold.entry, m_frame->GetScreen() );
 
-    m_busUnfold.label = new SCH_LABEL( m_busUnfold.entry->m_End(), aNet );
+    m_busUnfold.label = new SCH_LABEL( m_busUnfold.entry->GetEnd(), aNet );
     m_busUnfold.label->SetTextSize( wxSize( cfg.m_DefaultTextSize, cfg.m_DefaultTextSize ) );
     m_busUnfold.label->SetLabelSpinStyle( LABEL_SPIN_STYLE::RIGHT );
     m_busUnfold.label->SetParent( m_frame->GetScreen() );
@@ -374,9 +374,9 @@ SCH_LINE* SCH_LINE_WIRE_BUS_TOOL::doUnfoldBus( const wxString& aNet )
     m_busUnfold.origin = pos;
     m_busUnfold.net_name = aNet;
 
-    getViewControls()->SetCrossHairCursorPosition( m_busUnfold.entry->m_End(), false );
+    getViewControls()->SetCrossHairCursorPosition( m_busUnfold.entry->GetEnd(), false );
 
-    return startSegments( LAYER_WIRE, m_busUnfold.entry->m_End() );
+    return startSegments( LAYER_WIRE, m_busUnfold.entry->GetEnd() );
 }
 
 
@@ -638,7 +638,7 @@ int SCH_LINE_WIRE_BUS_TOOL::doDrawSegments( const std::string& aTool, int aType
                     m_busUnfold.flipX = flipX;
 
                     m_frame->UpdateItem( entry );
-                    m_wires.front()->SetStartPoint( entry->m_End() );
+                    m_wires.front()->SetStartPoint( entry->GetEnd() );
                 }
 
                 // Update the label "ghost" position
@@ -803,9 +803,8 @@ void SCH_LINE_WIRE_BUS_TOOL::finishSegments()
     simplifyWireList();
 
     // Collect the possible connection points for the new lines
-    std::vector< wxPoint > connections;
+    std::vector< wxPoint > connections = m_frame->GetSchematicConnections();
     std::vector< wxPoint > new_ends;
-    m_frame->GetSchematicConnections( connections );
 
     // Check each new segment for possible junctions and add/split if needed
     for( auto wire : m_wires )
@@ -813,7 +812,9 @@ void SCH_LINE_WIRE_BUS_TOOL::finishSegments()
         if( wire->HasFlag( SKIP_STRUCT ) )
             continue;
 
-        wire->GetConnectionPoints( new_ends );
+        std::vector<wxPoint> tmpends = wire->GetConnectionPoints();
+
+        new_ends.insert( new_ends.end(), tmpends.begin(), tmpends.end() );
 
         for( auto i : connections )
         {
@@ -857,8 +858,7 @@ void SCH_LINE_WIRE_BUS_TOOL::finishSegments()
 
     for( auto item : m_frame->GetScreen()->Items().OfType( SCH_COMPONENT_T ) )
     {
-        std::vector< wxPoint > pts;
-        item->GetConnectionPoints( pts );
+        std::vector< wxPoint > pts = item->GetConnectionPoints();
 
         if( pts.size() > 2 )
             continue;
@@ -891,19 +891,16 @@ int SCH_LINE_WIRE_BUS_TOOL::AddJunctionsIfNeeded( const TOOL_EVENT& aEvent )
     EE_SELECTION* aSelection = aEvent.Parameter<EE_SELECTION*>();
 
     std::vector<wxPoint> pts;
-    std::vector<wxPoint> connections;
-
-    m_frame->GetSchematicConnections( connections );
+    std::vector<wxPoint> connections = m_frame->GetSchematicConnections();
 
     for( unsigned ii = 0; ii < aSelection->GetSize(); ii++ )
     {
         SCH_ITEM*            item = dynamic_cast<SCH_ITEM*>( aSelection->GetItem( ii ) );
-        std::vector<wxPoint> new_pts;
 
         if( !item || !item->IsConnectable() )
             continue;
 
-        item->GetConnectionPoints( new_pts );
+        std::vector<wxPoint> new_pts = item->GetConnectionPoints();
         pts.insert( pts.end(), new_pts.begin(), new_pts.end() );
 
         // If the item is a line, we also add any connection points from the rest of the schematic

eeschema/tools/sch_move_tool.cpp

@@ -216,7 +216,7 @@ int SCH_MOVE_TOOL::Main( const TOOL_EVENT& aEvent )
                             if( item->Type() == SCH_LINE_T )
                                 static_cast<SCH_LINE*>( item )->GetSelectedPoints( connections );
                             else
-                                static_cast<SCH_ITEM*>( item )->GetConnectionPoints( connections );
+                                connections = static_cast<SCH_ITEM*>( item )->GetConnectionPoints();
 
                             for( wxPoint point : connections )
                                 getConnectedDragItems( (SCH_ITEM*) item, point, m_dragAdditions );
@@ -602,8 +602,7 @@ void SCH_MOVE_TOOL::getConnectedDragItems( SCH_ITEM* aOriginalItem, wxPoint aPoi
             // Select labels and bus entries that are connected to a wire being moved.
             if( aOriginalItem->Type() == SCH_LINE_T )
             {
-                std::vector<wxPoint> connections;
-                test->GetConnectionPoints( connections );
+                std::vector<wxPoint> connections = test->GetConnectionPoints();
 
                 for( wxPoint& point : connections )
                 {
@@ -615,11 +614,9 @@ void SCH_MOVE_TOOL::getConnectedDragItems( SCH_ITEM* aOriginalItem, wxPoint aPoi
                         // A bus entry needs its wire & label as well
                         if( testType == SCH_BUS_WIRE_ENTRY_T || testType == SCH_BUS_BUS_ENTRY_T )
                         {
-                            std::vector<wxPoint> ends;
+                            std::vector<wxPoint> ends = test->GetConnectionPoints();
                             wxPoint              otherEnd;
 
-                            test->GetConnectionPoints( ends );
-
                             if( ends[0] == point )
                                 otherEnd = ends[1];
                             else

qa/eeschema/test_sch_sheet.cpp

@@ -230,8 +230,7 @@ BOOST_AUTO_TEST_CASE( EndconnectionPoints )
             expectedConnections.push_back( pin.m_pos );
         }
 
-        std::vector<wxPoint> connections;
-        m_sheet.GetConnectionPoints( connections );
+        std::vector<wxPoint> connections = m_sheet.GetConnectionPoints();
 
         BOOST_CHECK_EQUAL_COLLECTIONS( connections.begin(), connections.end(),
                                        expectedConnections.begin(), expectedConnections.end() );