1 files changed, 102 insertions, 0 deletions
diff --git a/pcbnew/zones_polygons_insulated_copper_islands.cpp b/pcbnew/zones_polygons_insulated_copper_islands.cpp
new file mode 100644
index 0000000..bfb861e
--- /dev/null
+++ b/pcbnew/zones_polygons_insulated_copper_islands.cpp
@@ -0,0 +1,102 @@
+/**
+ * @file zones_polygons_insulated_copper_islands.cpp
+ */
+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2012 Jean-Pierre Charras, jean-pierre.charras@ujf-grenoble.fr
+ * Copyright (C) 1992-2012 KiCad Developers, see AUTHORS.txt for contributors.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+#include <fctsys.h>
+#include <common.h>
+
+#include <class_board.h>
+#include <class_module.h>
+#include <class_track.h>
+#include <class_zone.h>
+
+#include <pcbnew.h>
+#include <zones.h>
+#include <polygon_test_point_inside.h>
+
+
+void ZONE_CONTAINER::TestForCopperIslandAndRemoveInsulatedIslands( BOARD* aPcb )
+{
+    if( m_FilledPolysList.IsEmpty() )
+        return;
+
+    // Build a list of points connected to the net:
+    // list of coordinates of pads and vias on this layer and on this net.
+    std::vector <wxPoint> listPointsCandidates;
+
+    for( MODULE* module = aPcb->m_Modules; module; module = module->Next() )
+    {
+        for( D_PAD* pad = module->Pads(); pad != NULL; pad = pad->Next() )
+        {
+            if( !pad->IsOnLayer( GetLayer() ) )
+                continue;
+
+            if( pad->GetNetCode() != GetNetCode() )
+                continue;
+
+            listPointsCandidates.push_back( pad->GetPosition() );
+        }
+    }
+
+    for( TRACK* track = aPcb->m_Track; track; track = track->Next() )
+    {
+        if( !track->IsOnLayer( GetLayer() ) )
+            continue;
+
+        if( track->GetNetCode() != GetNetCode() )
+            continue;
+
+        listPointsCandidates.push_back( track->GetStart() );
+
+        if( track->Type() != PCB_VIA_T )
+            listPointsCandidates.push_back( track->GetEnd() );
+    }
+
+    // test if a point is inside
+
+    for( int outline = 0; outline < m_FilledPolysList.OutlineCount(); outline++ )
+    {
+        bool connected = false;
+
+        for( unsigned ic = 0; ic < listPointsCandidates.size(); ic++ )
+        {
+            // test if this area is connected to a board item:
+            wxPoint pos = listPointsCandidates[ic];
+
+            if( m_FilledPolysList.Contains( VECTOR2I( pos.x, pos.y ), outline ) )
+            {
+                connected = true;
+                break;
+            }
+        }
+
+        if( !connected )                 // this polygon is connected: analyse next polygon
+        {
+            m_FilledPolysList.DeletePolygon( outline );
+            outline--;
+        }
+    }
+}