示例#1
0
bool NETLIST_OBJECT_LIST::BuildNetListInfo( SCH_SHEET_LIST& aSheets )
{
    SCH_SHEET_PATH* sheet;

    // Fill list with connected items from the flattened sheet list
    for( unsigned i = 0; i < aSheets.size();  i++ )
    {
        sheet = &aSheets[i];

        for( SCH_ITEM* item = sheet->LastScreen()->GetDrawItems(); item; item = item->Next() )
        {
            item->GetNetListItem( *this, sheet );
        }
    }

    if( size() == 0 )
        return false;

    // Sort objects by Sheet
    SortListbySheet();

    sheet = &(GetItem( 0 )->m_SheetPath);
    m_lastNetCode = m_lastBusNetCode = 1;

    for( unsigned ii = 0, istart = 0; ii < size(); ii++ )
    {
        NETLIST_OBJECT* net_item = GetItem( ii );

        if( net_item->m_SheetPath != *sheet )   // Sheet change
        {
            sheet  = &(net_item->m_SheetPath);
            istart = ii;
        }

        switch( net_item->m_Type )
        {
        case NET_ITEM_UNSPECIFIED:
            wxMessageBox( wxT( "BuildNetListInfo() error" ) );
            break;

        case NET_PIN:
        case NET_PINLABEL:
        case NET_SHEETLABEL:
        case NET_NOCONNECT:
            if( net_item->GetNet() != 0 )
                break;

        case NET_SEGMENT:
            // Test connections point to point type without bus.
            if( net_item->GetNet() == 0 )
            {
                net_item->SetNet( m_lastNetCode );
                m_lastNetCode++;
            }

            pointToPointConnect( net_item, IS_WIRE, istart );
            break;

        case NET_JUNCTION:
            // Control of the junction outside BUS.
            if( net_item->GetNet() == 0 )
            {
                net_item->SetNet( m_lastNetCode );
                m_lastNetCode++;
            }

            segmentToPointConnect( net_item, IS_WIRE, istart );

            // Control of the junction, on BUS.
            if( net_item->m_BusNetCode == 0 )
            {
                net_item->m_BusNetCode = m_lastBusNetCode;
                m_lastBusNetCode++;
            }

            segmentToPointConnect( net_item, IS_BUS, istart );
            break;

        case NET_LABEL:
        case NET_HIERLABEL:
        case NET_GLOBLABEL:
            // Test connections type junction without bus.
            if( net_item->GetNet() == 0 )
            {
                net_item->SetNet( m_lastNetCode );
                m_lastNetCode++;
            }

            segmentToPointConnect( net_item, IS_WIRE, istart );
            break;

        case NET_SHEETBUSLABELMEMBER:
            if( net_item->m_BusNetCode != 0 )
                break;

        case NET_BUS:
            // Control type connections point to point mode bus
            if( net_item->m_BusNetCode == 0 )
            {
                net_item->m_BusNetCode = m_lastBusNetCode;
                m_lastBusNetCode++;
            }

            pointToPointConnect( net_item, IS_BUS, istart );
            break;

        case NET_BUSLABELMEMBER:
        case NET_HIERBUSLABELMEMBER:
        case NET_GLOBBUSLABELMEMBER:
            // Control connections similar has on BUS
            if( net_item->GetNet() == 0 )
            {
                net_item->m_BusNetCode = m_lastBusNetCode;
                m_lastBusNetCode++;
            }

            segmentToPointConnect( net_item, IS_BUS, istart );
            break;
        }
    }

#if defined(NETLIST_DEBUG) && defined(DEBUG)
    std::cout << "\n\nafter sheet local\n\n";
    DumpNetTable();
#endif

    // Updating the Bus Labels Netcode connected by Bus
    connectBusLabels();

    // Group objects by label.
    for( unsigned ii = 0; ii < size(); ii++ )
    {
        switch( GetItem( ii )->m_Type )
        {
        case NET_PIN:
        case NET_SHEETLABEL:
        case NET_SEGMENT:
        case NET_JUNCTION:
        case NET_BUS:
        case NET_NOCONNECT:
            break;

        case NET_LABEL:
        case NET_GLOBLABEL:
        case NET_PINLABEL:
        case NET_BUSLABELMEMBER:
        case NET_GLOBBUSLABELMEMBER:
            labelConnect( GetItem( ii ) );
            break;

        case NET_SHEETBUSLABELMEMBER:
        case NET_HIERLABEL:
        case NET_HIERBUSLABELMEMBER:
            break;

        case NET_ITEM_UNSPECIFIED:
            break;
        }
    }

#if defined(NETLIST_DEBUG) && defined(DEBUG)
    std::cout << "\n\nafter sheet global\n\n";
    DumpNetTable();
#endif

    // Connection between hierarchy sheets
    for( unsigned ii = 0; ii < size(); ii++ )
    {
        if( GetItem( ii )->m_Type == NET_SHEETLABEL
            || GetItem( ii )->m_Type == NET_SHEETBUSLABELMEMBER )
            sheetLabelConnect( GetItem( ii ) );
    }

    // Sort objects by NetCode
    SortListbyNetcode();

#if defined(NETLIST_DEBUG) && defined(DEBUG)
    std::cout << "\n\nafter qsort()\n";
    DumpNetTable();
#endif

    // Compress numbers of Netcode having consecutive values.
    int NetCode = 0;
    m_lastNetCode = 0;

    for( unsigned ii = 0; ii < size(); ii++ )
    {
        if( GetItem( ii )->GetNet() != m_lastNetCode )
        {
            NetCode++;
            m_lastNetCode = GetItem( ii )->GetNet();
        }

        GetItem( ii )->SetNet( NetCode );
    }

    // Set the minimal connection info:
    setUnconnectedFlag();

    // find the best label object to give the best net name to each net
    findBestNetNameForEachNet();

    return true;
}