Add missing checks and undo support to pcbnew zone duplication.

include/wxPcbStruct.h

@@ -196,6 +196,14 @@ protected:
      */
     int propagate();
 
+    /**
+     * Function duplicateZone
+     * duplicates the given zone.
+     * @param aDC is the current Device Context.
+     * @param aZone is the zone to duplicate
+     */
+    void duplicateZone( wxDC* aDC, ZONE_CONTAINER* aZone );
+
 public:
     PCB_LAYER_BOX_SELECTOR* m_SelLayerBox;  // a combo box to display and select active layer
     wxComboBox* m_SelTrackWidthBox;     // a combo box to display and select current track width

pcbnew/class_zone_settings.cpp

@@ -86,5 +86,6 @@ void ZONE_SETTINGS::ExportSetting( ZONE_CONTAINER& aTarget, bool aFullExport ) c
         aTarget.SetPriority( m_ZonePriority );
         aTarget.SetNet( m_NetcodeSelection );
         aTarget.SetLayer( m_CurrentZone_Layer );
+        aTarget.m_Poly->SetLayer( m_CurrentZone_Layer );
     }
 }

pcbnew/edit.cpp

@@ -470,18 +470,7 @@ void PCB_EDIT_FRAME::Process_Special_Functions( wxCommandEvent& event )
     case ID_POPUP_PCB_ZONE_DUPLICATE:
     {
         ZONE_CONTAINER* zone = (ZONE_CONTAINER*) GetCurItem();
-        ZONE_CONTAINER* newZone = new ZONE_CONTAINER( m_Pcb );
-        newZone->Copy( zone );
-        ZONE_SETTINGS zoneSettings;
-        zoneSettings << *zone;
-        if( InvokeCopperZonesEditor( this, &zoneSettings ) )
-        {
-            zoneSettings.ExportSetting( *newZone );
-            m_Pcb->Add( newZone );
-            newZone->Draw( m_canvas, &dc, GR_OR );
-        }
-        else
-            delete newZone;
+        duplicateZone( &dc, zone );
     }
     break;
 

pcbnew/zones_by_polygon.cpp

@@ -107,6 +107,53 @@ void PCB_EDIT_FRAME::Add_Zone_Cutout( wxDC* DC, ZONE_CONTAINER* aZone )
 }
 
 
+void PCB_EDIT_FRAME::duplicateZone( wxDC* aDC, ZONE_CONTAINER* aZone )
+{
+    ZONE_CONTAINER* newZone = new ZONE_CONTAINER( GetBoard() );
+    newZone->Copy( aZone );
+    newZone->UnFill();
+    ZONE_SETTINGS zoneSettings;
+    zoneSettings << *aZone;
+
+    if( InvokeCopperZonesEditor( this, &zoneSettings ) )
+    {
+        zoneSettings.ExportSetting( *newZone );
+        newZone->m_Poly->Hatch();
+
+        _AuxiliaryList.ClearListAndDeleteItems();
+        s_PickedList.ClearListAndDeleteItems();
+        SaveCopyOfZones( s_PickedList, GetBoard(), newZone->GetNet(), newZone->GetLayer() );
+        GetBoard()->Add( newZone );
+
+        ITEM_PICKER picker( newZone, UR_NEW );
+        s_PickedList.PushItem( picker );
+
+        GetScreen()->SetCurItem( NULL );       // This outline may be deleted when merging outlines
+
+        // Combine zones if possible
+        GetBoard()->AreaPolygonModified( &_AuxiliaryList, newZone, true, s_Verbose );
+
+        // Redraw zones
+        GetBoard()->RedrawAreasOutlines( m_canvas, aDC, GR_OR, newZone->GetLayer() );
+        GetBoard()->RedrawFilledAreas( m_canvas, aDC, GR_OR, newZone->GetLayer() );
+
+        if( GetBoard()->GetAreaIndex( newZone ) >= 0
+           && GetBoard()->Test_Drc_Areas_Outlines_To_Areas_Outlines( newZone, true ) )
+        {
+            DisplayError( this, _( "Duplicate Zone: The outline of the duplicated zone fails DRC check!" ) );
+        }
+
+        UpdateCopyOfZonesList( s_PickedList, _AuxiliaryList, GetBoard() );
+        SaveCopyInUndoList( s_PickedList, UR_UNSPECIFIED );
+        s_PickedList.ClearItemsList();
+
+        OnModify();
+    }
+    else
+        delete newZone;
+}
+
+
 int PCB_EDIT_FRAME::Delete_LastCreatedCorner( wxDC* DC )
 {
     ZONE_CONTAINER* zone = GetBoard()->m_CurrentZoneContour;

polygon/PolyLine.h

@@ -159,6 +159,7 @@ public:
     void       AppendArc( int xi, int yi, int xf, int yf, int xc, int yc, int num );
 
     // access functions
+    void       SetLayer( int aLayer ) { m_layer = aLayer; }
     int        GetLayer() { return m_layer; }
     int        GetNumCorners();
     int        GetNumSides();