void PCB_EDIT_FRAME::Swap_Layers( wxCommandEvent& event )
{
    PCB_LAYER_ID new_layer[PCB_LAYER_ID_COUNT];

    DIALOG_SWAP_LAYERS dlg( this, new_layer );

    if( dlg.ShowModal() != wxID_OK )
        return;

    BOARD_COMMIT commit( this );
    bool hasChanges = false;

    // Change tracks.
    for( TRACK* segm = GetBoard()->m_Track;  segm;  segm = segm->Next() )
    {
        if( segm->Type() == PCB_VIA_T )
        {
            VIA*         via = (VIA*) segm;
            PCB_LAYER_ID top_layer, bottom_layer;

            if( via->GetViaType() == VIA_THROUGH )
                continue;

            via->LayerPair( &top_layer, &bottom_layer );

            if( new_layer[bottom_layer] != bottom_layer || new_layer[top_layer] != top_layer )
            {
                commit.Modify( via );
                via->SetLayerPair( new_layer[top_layer], new_layer[bottom_layer] );
                GetGalCanvas()->GetView()->Update( via, KIGFX::GEOMETRY );
                hasChanges = true;
            }
        }
        else
        {
            hasChanges |= processBoardItem( this, commit, segm, new_layer );
        }
    }

    for( BOARD_ITEM* zone : GetBoard()->Zones() )
    {
        hasChanges |= processBoardItem( this, commit, zone, new_layer );
    }

    for( BOARD_ITEM* drawing : GetBoard()->Drawings() )
    {
        hasChanges |= processBoardItem( this, commit, drawing, new_layer );
    }

    if( hasChanges )
    {
        OnModify();
        commit.Push( "Layers moved" );
        GetCanvas()->Refresh();
    }
}
/* Extract the D356 record from the vias */
static void build_via_testpoints( BOARD *aPcb,
    std::vector <D356_RECORD>& aRecords )
{
    wxPoint origin = aPcb->GetAuxOrigin();

    // Enumerate all the track segments and keep the vias
    for( TRACK *track = aPcb->m_Track; track; track = track->Next() )
    {
        if( track->Type() == PCB_VIA_T )
        {
            VIA *via = (VIA*) track;
            NETINFO_ITEM *net = track->GetNet();

            D356_RECORD rk;
            rk.smd = false;
            rk.hole = true;
            if( net )
                rk.netname = net->GetNetname();
            else
                rk.netname = wxEmptyString;
            rk.refdes = wxT("VIA");
            rk.pin = wxT("");
            rk.midpoint = true; // Vias are always midpoints
            rk.drill = via->GetDrillValue();
            rk.mechanical = false;

            LAYER_ID top_layer, bottom_layer;

            via->LayerPair( &top_layer, &bottom_layer );

            rk.access = via_access_code( aPcb, top_layer, bottom_layer );
            rk.x_location = via->GetPosition().x - origin.x;
            rk.y_location = origin.y - via->GetPosition().y;
            rk.x_size = via->GetWidth();
            rk.y_size = 0; // Round so height = 0
            rk.rotation = 0;
            rk.soldermask = 3; // XXX always tented?

            aRecords.push_back( rk );
        }
    }
}
std::vector<LAYER_PAIR> EXCELLON_WRITER::getUniqueLayerPairs() const
{
    wxASSERT( m_pcb );

    static const KICAD_T interesting_stuff_to_collect[] = {
        PCB_VIA_T,
        EOT
    };

    PCB_TYPE_COLLECTOR  vias;

    vias.Collect( m_pcb, interesting_stuff_to_collect );

    std::set< LAYER_PAIR >  unique;

    LAYER_PAIR  layer_pair;

    for( int i = 0; i < vias.GetCount(); ++i )
    {
        VIA*  v = (VIA*) vias[i];

        v->LayerPair( &layer_pair.first, &layer_pair.second );

        // only make note of blind buried.
        // thru hole is placed unconditionally as first in fetched list.
        if( layer_pair != LAYER_PAIR( F_Cu, B_Cu ) )
        {
            unique.insert( layer_pair );
        }
    }

    std::vector<LAYER_PAIR>    ret;

    ret.push_back( LAYER_PAIR( F_Cu, B_Cu ) );      // always first in returned list

    for( std::set< LAYER_PAIR >::const_iterator it = unique.begin();  it != unique.end(); ++it )
        ret.push_back( *it );

    return ret;
}
void EXCELLON_WRITER::BuildHolesList( LAYER_PAIR aLayerPair,
                                      bool aGenerateNPTH_list )
{
    HOLE_INFO new_hole;

    m_holeListBuffer.clear();
    m_toolListBuffer.clear();

    wxASSERT(  aLayerPair.first < aLayerPair.second );  // fix the caller

    // build hole list for vias
    if( ! aGenerateNPTH_list )  // vias are always plated !
    {
        for( VIA* via = GetFirstVia( m_pcb->m_Track ); via; via = GetFirstVia( via->Next() ) )
        {
            int hole_sz = via->GetDrillValue();

            if( hole_sz == 0 )   // Should not occur.
                continue;

            new_hole.m_Tool_Reference = -1;         // Flag value for Not initialized
            new_hole.m_Hole_Orient    = 0;
            new_hole.m_Hole_Diameter  = hole_sz;
            new_hole.m_Hole_NotPlated = false;
            new_hole.m_Hole_Size.x = new_hole.m_Hole_Size.y = new_hole.m_Hole_Diameter;

            new_hole.m_Hole_Shape = 0;              // hole shape: round
            new_hole.m_Hole_Pos = via->GetStart();

            via->LayerPair( &new_hole.m_Hole_Top_Layer, &new_hole.m_Hole_Bottom_Layer );

            // LayerPair() returns params with m_Hole_Bottom_Layer > m_Hole_Top_Layer
            // Remember: top layer = 0 and bottom layer = 31 for through hole vias
            // Any captured via should be from aLayerPair.first to aLayerPair.second exactly.
            if( new_hole.m_Hole_Top_Layer    != aLayerPair.first ||
                new_hole.m_Hole_Bottom_Layer != aLayerPair.second )
                continue;

            m_holeListBuffer.push_back( new_hole );
        }
    }

    if( aLayerPair == LAYER_PAIR( F_Cu, B_Cu ) )
    {
        // add holes for thru hole pads
        for( MODULE* module = m_pcb->m_Modules;  module;  module = module->Next() )
        {
            for( D_PAD* pad = module->Pads();  pad;  pad = pad->Next() )
            {
                if( !m_merge_PTH_NPTH )
                {
                    if( !aGenerateNPTH_list && pad->GetAttribute() == PAD_ATTRIB_HOLE_NOT_PLATED )
                        continue;

                    if( aGenerateNPTH_list && pad->GetAttribute() != PAD_ATTRIB_HOLE_NOT_PLATED )
                        continue;
                }

                if( pad->GetDrillSize().x == 0 )
                    continue;

                new_hole.m_Hole_NotPlated = (pad->GetAttribute() == PAD_ATTRIB_HOLE_NOT_PLATED);
                new_hole.m_Tool_Reference = -1;         // Flag is: Not initialized
                new_hole.m_Hole_Orient    = pad->GetOrientation();
                new_hole.m_Hole_Shape     = 0;           // hole shape: round
                new_hole.m_Hole_Diameter  = std::min( pad->GetDrillSize().x, pad->GetDrillSize().y );
                new_hole.m_Hole_Size.x    = new_hole.m_Hole_Size.y = new_hole.m_Hole_Diameter;

                if( pad->GetDrillShape() != PAD_DRILL_SHAPE_CIRCLE )
                    new_hole.m_Hole_Shape = 1; // oval flag set

                new_hole.m_Hole_Size         = pad->GetDrillSize();
                new_hole.m_Hole_Pos          = pad->GetPosition();  // hole position
                new_hole.m_Hole_Bottom_Layer = B_Cu;
                new_hole.m_Hole_Top_Layer    = F_Cu;    // pad holes are through holes
                m_holeListBuffer.push_back( new_hole );
            }
        }
    }

    // Sort holes per increasing diameter value
    sort( m_holeListBuffer.begin(), m_holeListBuffer.end(), CmpHoleSettings );

    // build the tool list
    int last_hole = -1;     // Set to not initialized (this is a value not used
                            // for m_holeListBuffer[ii].m_Hole_Diameter)
    bool last_notplated_opt = false;

    DRILL_TOOL new_tool( 0, false );
    unsigned   jj;

    for( unsigned ii = 0; ii < m_holeListBuffer.size(); ii++ )
    {
        if( m_holeListBuffer[ii].m_Hole_Diameter != last_hole ||
            m_holeListBuffer[ii].m_Hole_NotPlated != last_notplated_opt )
        {
            new_tool.m_Diameter = m_holeListBuffer[ii].m_Hole_Diameter;
            new_tool.m_Hole_NotPlated = m_holeListBuffer[ii].m_Hole_NotPlated;
            m_toolListBuffer.push_back( new_tool );
            last_hole = new_tool.m_Diameter;
            last_notplated_opt = new_tool.m_Hole_NotPlated;
        }

        jj = m_toolListBuffer.size();

        if( jj == 0 )
            continue;                                        // Should not occurs

        m_holeListBuffer[ii].m_Tool_Reference = jj;          // Tool value Initialized (value >= 1)

        m_toolListBuffer.back().m_TotalCount++;

        if( m_holeListBuffer[ii].m_Hole_Shape )
            m_toolListBuffer.back().m_OvalCount++;
    }
}
void EXCELLON_WRITER::BuildHolesList( int aFirstLayer,
                                      int aLastLayer,
                                      bool aExcludeThroughHoles,
                                      bool aGenerateNPTH_list,
                                      bool aMerge_PTH_NPTH )
{
    HOLE_INFO new_hole;
    int       hole_value;

    m_holeListBuffer.clear();
    m_toolListBuffer.clear();

    if( (aFirstLayer >= 0) && (aLastLayer >= 0) )
    {
        if( aFirstLayer > aLastLayer )
            std::swap( aFirstLayer, aLastLayer );
    }

    if ( aGenerateNPTH_list && aMerge_PTH_NPTH )
    {
        return;
    }

    // build hole list for vias
    if( ! aGenerateNPTH_list )  // vias are always plated !
    {
        for( VIA* via = GetFirstVia( m_pcb->m_Track ); via; via = GetFirstVia( via->Next() ) )
        {
            hole_value = via->GetDrillValue();

            if( hole_value == 0 )   // Should not occur.
                continue;

            new_hole.m_Tool_Reference = -1;         // Flag value for Not initialized
            new_hole.m_Hole_Orient    = 0;
            new_hole.m_Hole_Diameter  = hole_value;
            new_hole.m_Hole_Size.x = new_hole.m_Hole_Size.y = new_hole.m_Hole_Diameter;

            new_hole.m_Hole_Shape = 0;              // hole shape: round
            new_hole.m_Hole_Pos = via->GetStart();

            via->LayerPair( &new_hole.m_Hole_Top_Layer, &new_hole.m_Hole_Bottom_Layer );

            // LayerPair return params with m_Hole_Bottom_Layer > m_Hole_Top_Layer
            // Remember: top layer = 0 and bottom layer = 31 for through hole vias
            // the via should be at least from aFirstLayer to aLastLayer
            if( (new_hole.m_Hole_Top_Layer > aFirstLayer) && (aFirstLayer >= 0) )
                continue;   // via above the first layer

            if( (new_hole.m_Hole_Bottom_Layer < aLastLayer) && (aLastLayer >= 0) )
                continue;   // via below the last layer

            if( aExcludeThroughHoles && (new_hole.m_Hole_Bottom_Layer == B_Cu)
               && (new_hole.m_Hole_Top_Layer == F_Cu) )
                continue;

            m_holeListBuffer.push_back( new_hole );
        }
    }

    // build hole list for pads (assumed always through holes)
    if( !aExcludeThroughHoles || aGenerateNPTH_list )
    {
        for( MODULE* module = m_pcb->m_Modules;  module;  module = module->Next() )
        {
            // Read and analyse pads
            for( D_PAD* pad = module->Pads();  pad;  pad = pad->Next() )
            {
                if( ! aGenerateNPTH_list &&
                    pad->GetAttribute() == PAD_HOLE_NOT_PLATED &&
                    ! aMerge_PTH_NPTH )
                    continue;

                if( aGenerateNPTH_list && pad->GetAttribute() != PAD_HOLE_NOT_PLATED )
                    continue;

                if( pad->GetDrillSize().x == 0 )
                    continue;

                new_hole.m_Hole_NotPlated = (pad->GetAttribute() == PAD_HOLE_NOT_PLATED);
                new_hole.m_Tool_Reference = -1;         // Flag is: Not initialized
                new_hole.m_Hole_Orient    = pad->GetOrientation();
                new_hole.m_Hole_Shape     = 0;           // hole shape: round
                new_hole.m_Hole_Diameter  = std::min( pad->GetDrillSize().x, pad->GetDrillSize().y );
                new_hole.m_Hole_Size.x    = new_hole.m_Hole_Size.y = new_hole.m_Hole_Diameter;

                if( pad->GetDrillShape() != PAD_DRILL_CIRCLE )
                    new_hole.m_Hole_Shape = 1; // oval flag set

                new_hole.m_Hole_Size         = pad->GetDrillSize();
                new_hole.m_Hole_Pos          = pad->GetPosition();               // hole position
                new_hole.m_Hole_Bottom_Layer = B_Cu;
                new_hole.m_Hole_Top_Layer    = F_Cu;// pad holes are through holes
                m_holeListBuffer.push_back( new_hole );
            }
        }
    }

    // Sort holes per increasing diameter value
    sort( m_holeListBuffer.begin(), m_holeListBuffer.end(), CmpHoleDiameterValue );

    // build the tool list
    int        LastHole = -1; /* Set to not initialized (this is a value not used
                               * for m_holeListBuffer[ii].m_Hole_Diameter) */
    DRILL_TOOL new_tool( 0 );
    unsigned   jj;

    for( unsigned ii = 0; ii < m_holeListBuffer.size(); ii++ )
    {
        if( m_holeListBuffer[ii].m_Hole_Diameter != LastHole )
        {
            new_tool.m_Diameter = ( m_holeListBuffer[ii].m_Hole_Diameter );
            m_toolListBuffer.push_back( new_tool );
            LastHole = new_tool.m_Diameter;
        }

        jj = m_toolListBuffer.size();

        if( jj == 0 )
            continue;                                        // Should not occurs

        m_holeListBuffer[ii].m_Tool_Reference = jj;          // Tool value Initialized (value >= 1)

        m_toolListBuffer.back().m_TotalCount++;

        if( m_holeListBuffer[ii].m_Hole_Shape )
            m_toolListBuffer.back().m_OvalCount++;
    }
}