C++ NETLIST_OBJECT::GetNet方法代码示例

void NETLIST_OBJECT_LIST::sheetLabelConnect( NETLIST_OBJECT* SheetLabel )
{
    if( SheetLabel->GetNet() == 0 )
        return;

    for( unsigned ii = 0; ii < size(); ii++ )
    {
        NETLIST_OBJECT* ObjetNet = GetItem( ii );

        if( ObjetNet->m_SheetPath != SheetLabel->m_SheetPathInclude )
            continue;  //use SheetInclude, not the sheet!!

        if( (ObjetNet->m_Type != NET_HIERLABEL ) && (ObjetNet->m_Type != NET_HIERBUSLABELMEMBER ) )
            continue;

        if( ObjetNet->GetNet() == SheetLabel->GetNet() )
            continue;  //already connected.

        if( ObjetNet->m_Label != SheetLabel->m_Label )
            continue;  //different names.

        // Propagate Netcode having all the objects of the same Netcode.
        if( ObjetNet->GetNet() )
            propagateNetCode( ObjetNet->GetNet(), SheetLabel->GetNet(), IS_WIRE );
        else
            ObjetNet->SetNet( SheetLabel->GetNet() );
    }
}

void NETLIST_OBJECT_LIST::propagateNetCode( int aOldNetCode, int aNewNetCode, bool aIsBus )
{
    if( aOldNetCode == aNewNetCode )
        return;

    if( aIsBus == false )    // Propagate NetCode
    {
        for( unsigned jj = 0; jj < size(); jj++ )
        {
            NETLIST_OBJECT* object = GetItem( jj );

            if( object->GetNet() == aOldNetCode )
                object->SetNet( aNewNetCode );
        }
    }
    else               // Propagate BusNetCode
    {
        for( unsigned jj = 0; jj < size(); jj++ )
        {
            NETLIST_OBJECT* object = GetItem( jj );

            if( object->m_BusNetCode == aOldNetCode )
                object->m_BusNetCode = aNewNetCode;
        }
    }
}

void NETLIST_OBJECT_LIST::segmentToPointConnect( NETLIST_OBJECT* aJonction,
                                                 bool aIsBus, int aIdxStart )
{
    for( unsigned i = aIdxStart; i < size(); i++ )
    {
        NETLIST_OBJECT* segment = GetItem( i );

        // if different sheets, obviously no physical connection between elements.
        if( segment->m_SheetPath != aJonction->m_SheetPath )
            continue;

        if( aIsBus == IS_WIRE )
        {
            if( segment->m_Type != NET_SEGMENT )
                continue;
        }
        else
        {
            if( segment->m_Type != NET_BUS )
                continue;
        }

        if( IsPointOnSegment( segment->m_Start, segment->m_End, aJonction->m_Start ) )
        {
            // Propagation Netcode has all the objects of the same Netcode.
            if( aIsBus == IS_WIRE )
            {
                if( segment->GetNet() )
                    propagateNetCode( segment->GetNet(), aJonction->GetNet(), aIsBus );
                else
                    segment->SetNet( aJonction->GetNet() );
            }
            else
            {
                if( segment->m_BusNetCode )
                    propagateNetCode( segment->m_BusNetCode, aJonction->m_BusNetCode, aIsBus );
                else
                    segment->m_BusNetCode = aJonction->m_BusNetCode;
            }
        }
    }
}

void NETLIST_OBJECT_LIST::labelConnect( NETLIST_OBJECT* aLabelRef )
{
    if( aLabelRef->GetNet() == 0 )
        return;

    for( unsigned i = 0; i < size(); i++ )
    {
        NETLIST_OBJECT* item = GetItem( i );

        if( item->GetNet() == aLabelRef->GetNet() )
            continue;

        if( item->m_SheetPath != aLabelRef->m_SheetPath )
        {
            if( item->m_Type != NET_PINLABEL && item->m_Type != NET_GLOBLABEL
                && item->m_Type != NET_GLOBBUSLABELMEMBER )
                continue;

            if( (item->m_Type == NET_GLOBLABEL
                 || item->m_Type == NET_GLOBBUSLABELMEMBER)
               && item->m_Type != aLabelRef->m_Type )
                //global labels only connect other global labels.
                continue;
        }

        // NET_HIERLABEL are used to connect sheets.
        // NET_LABEL are local to a sheet
        // NET_GLOBLABEL are global.
        // NET_PINLABEL is a kind of global label (generated by a power pin invisible)
        if( item->IsLabelType() )
        {
            if( item->m_Label != aLabelRef->m_Label )
                continue;

            if( item->GetNet() )
                propagateNetCode( item->GetNet(), aLabelRef->GetNet(), IS_WIRE );
            else
                item->SetNet( aLabelRef->GetNet() );
        }
    }
}

void NETLIST_OBJECT_LIST::connectBusLabels()
{
    // Propagate the net code between all bus label member objects connected by they name.
    // If the net code is not yet existing, a new one is created
    // Search is done in the entire list
    for( unsigned ii = 0; ii < size(); ii++ )
    {
        NETLIST_OBJECT* Label = GetItem( ii );

        if( Label->IsLabelBusMemberType() )
        {
            if( Label->GetNet() == 0 )
            {
                // Not yet existiing net code: create a new one.
                Label->SetNet( m_lastNetCode );
                m_lastNetCode++;
            }

            for( unsigned jj = ii + 1; jj < size(); jj++ )
            {
                NETLIST_OBJECT* LabelInTst =  GetItem( jj );

                if( LabelInTst->IsLabelBusMemberType() )
                {
                    if( LabelInTst->m_BusNetCode != Label->m_BusNetCode )
                        continue;

                    if( LabelInTst->m_Member != Label->m_Member )
                        continue;

                    if( LabelInTst->GetNet() == 0 )
                        // Append this object to the current net
                        LabelInTst->SetNet( Label->GetNet() );
                    else
                        // Merge the 2 net codes, they are connected.
                        propagateNetCode( LabelInTst->GetNet(), Label->GetNet(), IS_WIRE );
                }
            }
        }
    }
}

void NETLIST_OBJECT_LIST::connectBusLabels()
{
    for( unsigned ii = 0; ii < size(); ii++ )
    {
        NETLIST_OBJECT* Label = GetItem( ii );

        if(  (Label->m_Type == NET_SHEETBUSLABELMEMBER)
          || (Label->m_Type == NET_BUSLABELMEMBER)
          || (Label->m_Type == NET_HIERBUSLABELMEMBER) )
        {
            if( Label->GetNet() == 0 )
            {
                Label->SetNet( m_lastNetCode );
                m_lastNetCode++;
            }

            for( unsigned jj = ii + 1; jj < size(); jj++ )
            {
                NETLIST_OBJECT* LabelInTst =  GetItem( jj );
                if( (LabelInTst->m_Type == NET_SHEETBUSLABELMEMBER)
                   || (LabelInTst->m_Type == NET_BUSLABELMEMBER)
                   || (LabelInTst->m_Type == NET_HIERBUSLABELMEMBER) )
                {
                    if( LabelInTst->m_BusNetCode != Label->m_BusNetCode )
                        continue;

                    if( LabelInTst->m_Member != Label->m_Member )
                        continue;

                    if( LabelInTst->GetNet() == 0 )
                        LabelInTst->SetNet( Label->GetNet() );
                    else
                        propageNetCode( LabelInTst->GetNet(), Label->GetNet(), IS_WIRE );
                }
            }
        }
    }
}

XNODE* NETLIST_EXPORTER_GENERIC::makeListOfNets()
{
    XNODE*      xnets = node( wxT( "nets" ) );      // auto_ptr if exceptions ever get used.
    wxString    netCodeTxt;
    wxString    netName;
    wxString    ref;

    wxString    sNet  = wxT( "net" );
    wxString    sName = wxT( "name" );
    wxString    sCode = wxT( "code" );
    wxString    sRef  = wxT( "ref" );
    wxString    sPin  = wxT( "pin" );
    wxString    sNode = wxT( "node" );
    wxString    sFmtd = wxT( "%d" );

    XNODE*      xnet = 0;
    int         netCode;
    int         lastNetCode = -1;
    int         sameNetcodeCount = 0;


    /*  output:
        <net code="123" name="/cfcard.sch/WAIT#">
            <node ref="R23" pin="1"/>
            <node ref="U18" pin="12"/>
        </net>
    */

    m_LibParts.clear();     // must call this function before using m_LibParts.

    for( unsigned ii = 0; ii < m_masterList->size(); ii++ )
    {
        NETLIST_OBJECT* nitem = m_masterList->GetItem( ii );
        SCH_COMPONENT*  comp;

        // New net found, write net id;
        if( ( netCode = nitem->GetNet() ) != lastNetCode )
        {
            sameNetcodeCount = 0;   // item count for this net
            netName = nitem->GetNetName();
            lastNetCode  = netCode;
        }

        if( nitem->m_Type != NET_PIN )
            continue;

        if( nitem->m_Flag != 0 )     // Redundant pin, skip it
            continue;

        comp = nitem->GetComponentParent();

        // Get the reference for the net name and the main parent component
        ref = comp->GetRef( &nitem->m_SheetPath );
        if( ref[0] == wxChar( '#' ) )
            continue;

        if( ++sameNetcodeCount == 1 )
        {
            xnets->AddChild( xnet = node( sNet ) );
            netCodeTxt.Printf( sFmtd, netCode );
            xnet->AddAttribute( sCode, netCodeTxt );
            xnet->AddAttribute( sName, netName );
        }

        XNODE*      xnode;
        xnet->AddChild( xnode = node( sNode ) );
        xnode->AddAttribute( sRef, ref );
        xnode->AddAttribute( sPin,  nitem->GetPinNumText() );
    }

    return xnets;
}

void NETLIST_OBJECT_LIST::setUnconnectedFlag()
{
    NETLIST_OBJECT* NetItemRef;
    unsigned NetStart, NetEnd;
    NET_CONNECTION_T StateFlag;

    NetStart  = NetEnd = 0;
    StateFlag = UNCONNECTED;
    for( unsigned ii = 0; ii < size(); ii++ )
    {
        NetItemRef = GetItem( ii );
        if( NetItemRef->m_Type == NET_NOCONNECT && StateFlag != PAD_CONNECT )
            StateFlag = NOCONNECT_SYMBOL_PRESENT;

        // Analysis of current net.
        unsigned idxtoTest = ii + 1;

        if( ( idxtoTest >= size() )
           || ( NetItemRef->GetNet() != GetItem( idxtoTest )->GetNet() ) )
        {
            // Net analysis to update m_ConnectionType
            NetEnd = idxtoTest;

            /* set m_ConnectionType member to StateFlag for all items of
             * this net: */
            for( unsigned kk = NetStart; kk < NetEnd; kk++ )
                GetItem( kk )->m_ConnectionType = StateFlag;

            if( idxtoTest >= size() )
                return;

            // Start Analysis next Net
            StateFlag = UNCONNECTED;
            NetStart  = idxtoTest;
            continue;
        }

        /* test the current item: if this is a pin and if the reference item
         * is also a pin, then 2 pins are connected, so set StateFlag to
         * PAD_CONNECT (can be already done)  Of course, if the current
         * item is a no connect symbol, set StateFlag to
         * NOCONNECT_SYMBOL_PRESENT to inhibit error diags. However if
         * StateFlag is already set to PAD_CONNECT this state is kept (the
         * no connect symbol was surely an error and an ERC will report this)
         */
       for( ; ; idxtoTest++ )
        {
            if( ( idxtoTest >= size() )
               || ( NetItemRef->GetNet() != GetItem( idxtoTest )->GetNet() ) )
                break;

            switch( GetItem( idxtoTest )->m_Type )
            {
            case NET_ITEM_UNSPECIFIED:
                wxMessageBox( wxT( "BuildNetListBase() error" ) );
                break;

            case NET_SEGMENT:
            case NET_LABEL:
            case NET_HIERLABEL:
            case NET_GLOBLABEL:
            case NET_SHEETLABEL:
            case NET_PINLABEL:
            case NET_BUS:
            case NET_BUSLABELMEMBER:
            case NET_SHEETBUSLABELMEMBER:
            case NET_HIERBUSLABELMEMBER:
            case NET_GLOBBUSLABELMEMBER:
            case NET_JUNCTION:
                break;

            case NET_PIN:
                if( NetItemRef->m_Type == NET_PIN )
                    StateFlag = PAD_CONNECT;

                break;

            case NET_NOCONNECT:
                if( StateFlag != PAD_CONNECT )
                    StateFlag = NOCONNECT_SYMBOL_PRESENT;

                break;
            }
        }
    }
}

void NETLIST_OBJECT_LIST::pointToPointConnect( NETLIST_OBJECT* aRef, bool aIsBus, int start )
{
    int netCode;

    if( aIsBus == false )    // Objects other than BUS and BUSLABELS
    {
        netCode = aRef->GetNet();

        for( unsigned i = start; i < size(); i++ )
        {
            NETLIST_OBJECT* item = GetItem( i );

            if( item->m_SheetPath != aRef->m_SheetPath )  //used to be > (why?)
                continue;

            switch( item->m_Type )
            {
            case NET_SEGMENT:
            case NET_PIN:
            case NET_LABEL:
            case NET_HIERLABEL:
            case NET_GLOBLABEL:
            case NET_SHEETLABEL:
            case NET_PINLABEL:
            case NET_JUNCTION:
            case NET_NOCONNECT:
                if( aRef->m_Start == item->m_Start
                    || aRef->m_Start == item->m_End
                    || aRef->m_End   == item->m_Start
                    || aRef->m_End   == item->m_End )
                {
                    if( item->GetNet() == 0 )
                        item->SetNet( netCode );
                    else
                        propagateNetCode( item->GetNet(), netCode, IS_WIRE );
                }
                break;

            case NET_BUS:
            case NET_BUSLABELMEMBER:
            case NET_SHEETBUSLABELMEMBER:
            case NET_HIERBUSLABELMEMBER:
            case NET_GLOBBUSLABELMEMBER:
            case NET_ITEM_UNSPECIFIED:
                break;
            }
        }
    }
    else    // Object type BUS, BUSLABELS, and junctions.
    {
        netCode = aRef->m_BusNetCode;

        for( unsigned i = start; i < size(); i++ )
        {
            NETLIST_OBJECT* item = GetItem( i );

            if( item->m_SheetPath != aRef->m_SheetPath )
                continue;

            switch( item->m_Type )
            {
            case NET_ITEM_UNSPECIFIED:
            case NET_SEGMENT:
            case NET_PIN:
            case NET_LABEL:
            case NET_HIERLABEL:
            case NET_GLOBLABEL:
            case NET_SHEETLABEL:
            case NET_PINLABEL:
            case NET_NOCONNECT:
                break;

            case NET_BUS:
            case NET_BUSLABELMEMBER:
            case NET_SHEETBUSLABELMEMBER:
            case NET_HIERBUSLABELMEMBER:
            case NET_GLOBBUSLABELMEMBER:
            case NET_JUNCTION:
                if(  aRef->m_Start == item->m_Start
                  || aRef->m_Start == item->m_End
                  || aRef->m_End   == item->m_Start
                  || aRef->m_End   == item->m_End )
                {
                    if( item->m_BusNetCode == 0 )
                        item->m_BusNetCode = netCode;
                    else
                        propagateNetCode( item->m_BusNetCode, netCode, IS_BUS );
                }
                break;
            }
        }
    }
}

void NETLIST_OBJECT_LIST::findBestNetNameForEachNet()
{
    // Important note: NET_SHEETLABEL items of sheet items should *NOT* be considered,
    // because they live in a sheet but their names are actually used in the subsheet.
    // Moreover, in the parent sheet, the name of NET_SHEETLABEL can be not unique,
    // ( for instance when 2 different sheets share the same schematic in complex hierarchies
    // and 2 identical NET_SHEETLABEL labels can be connected to 2 different nets

    int netcode = 0;            // current netcode for tested items
    unsigned idxstart = 0;      // index of the first item of this net
    NETLIST_OBJECT* item;
    NETLIST_OBJECT* candidate;

    // Pass 1: find the best name for labelled nets:
    candidate = NULL;
    for( unsigned ii = 0; ii <= size(); ii++ )
    {
        if( ii == size() ) // last item already tested
            item = NULL;
        else
            item = GetItem( ii );

        if( !item || netcode != item->GetNet() )     // End of net found
        {
            if( candidate )         // One or more labels exists, find the best
            {
                for (unsigned jj = idxstart; jj < ii; jj++ )
                    GetItem( jj )->SetNetNameCandidate( candidate );
            }

            if( item == NULL )  // End of list
                break;

            // Prepare next net analysis:
            netcode = item->GetNet();
            candidate = NULL;
            idxstart = ii;
        }

        switch( item->m_Type )
        {
        case NET_HIERLABEL:
        case NET_LABEL:
        case NET_PINLABEL:
        case NET_GLOBLABEL:
        case NET_GLOBBUSLABELMEMBER:
            // A candidate is found: select the better between the previous
            // and this one
            if( candidate == NULL )
                candidate = item;
            else
            {
                if( evalLabelsPriority( item, candidate ) )
                    // item has a highter priority than candidate
                    // so update the best candidate
                    candidate = item;
            }
            break;

        default:
            break;
        }
    }

    // Pass 2: find the best name for not labelled nets:
    // The "default" net name is Net-<<Ref cmp>_Pad<num pad>>
    // (see NETLIST_OBJECT::GetShortNetName())
    // therefore the "best" is the short net name alphabetically classed first
    // (to avoid net names changes when the net is not modified,
    // even if components are moved or deleted and undelete or replaced, as long
    // the reference is kept)

    // Build a list of items with no net names
    NETLIST_OBJECTS    list;   // no ownership of elements being pointed at

    for( unsigned ii = 0; ii < size(); ii++ )
    {
        item = GetItem( ii );

        if( !item->HasNetNameCandidate() )
            list.push_back( item );
    }

    if( list.size() == 0 )
        return;

    idxstart = 0;
    candidate = NULL;
    netcode = list[0]->GetNet();

    for( unsigned ii = 0; ii <= list.size(); ii++ )
    {
        if( ii < list.size() )
            item = list[ii];
        else
            item = NULL;

        if( !item || netcode != item->GetNet() )     // End of net found
        {
            if( candidate )
//.........这里部分代码省略.........

bool NETLIST_EXPORTER_CADSTAR::writeListOfNets( FILE* f )
{
    int ret = 0;
    wxString InitNetDesc  = StartLine + wxT( "ADD_TER" );
    wxString StartNetDesc = StartLine + wxT( "TER" );
    wxString netcodeName, InitNetDescLine;
    unsigned ii;
    int print_ter = 0;
    int NetCode, lastNetCode = -1;
    SCH_COMPONENT* Cmp;
    wxString netName;

    for( ii = 0; ii < m_masterList->size(); ii++ )
    {
        NETLIST_OBJECT* nitem = m_masterList->GetItem( ii );

        // Get the NetName of the current net :
        if( ( NetCode = nitem->GetNet() ) != lastNetCode )
        {
            netName = nitem->GetNetName();
            netcodeName = wxT( "\"" );

            if( !netName.IsEmpty() )
                netcodeName << netName;
            else  // this net has no name: create a default name $<net number>
                netcodeName << wxT( "$" ) << NetCode;

            netcodeName += wxT( "\"" );
            lastNetCode  = NetCode;
            print_ter    = 0;
        }


        if( nitem->m_Type != NET_PIN )
            continue;

        if( nitem->m_Flag != 0 )
            continue;

        Cmp = nitem->GetComponentParent();
        wxString refstr = Cmp->GetRef( &nitem->m_SheetPath );
        if( refstr[0] == '#' )
            continue;  // Power supply symbols.

        switch( print_ter )
        {
        case 0:
            {
                char buf[5];
                wxString str_pinnum;
                strncpy( buf, (char*) &nitem->m_PinNum, 4 );
                buf[4]     = 0;
                str_pinnum = FROM_UTF8( buf );
                InitNetDescLine.Printf( wxT( "\n%s   %s   %.4s     %s" ),
                                       GetChars( InitNetDesc ),
                                       GetChars( refstr ),
                                       GetChars( str_pinnum ),
                                       GetChars( netcodeName ) );
            }
            print_ter++;
            break;

        case 1:
            ret |= fprintf( f, "%s\n", TO_UTF8( InitNetDescLine ) );
            ret |= fprintf( f, "%s       %s   %.4s\n",
                            TO_UTF8( StartNetDesc ),
                            TO_UTF8( refstr ),
                            (char*) &nitem->m_PinNum );
            print_ter++;
            break;

        default:
            ret |= fprintf( f, "            %s   %.4s\n",
                            TO_UTF8( refstr ),
                            (char*) &nitem->m_PinNum );
            break;
        }

        nitem->m_Flag = 1;
    }

    return ret >= 0;
}

bool NETLIST_EXPORTER_GENERIC::writeListOfNets( FILE* f, NETLIST_OBJECT_LIST& aObjectsList )
{
    int         ret = 0;
    int         netCode;
    int         lastNetCode = -1;
    int         sameNetcodeCount = 0;
    wxString    netName;
    wxString    ref;
    wxString    netcodeName;
    char        firstItemInNet[256];

    for( unsigned ii = 0; ii < aObjectsList.size(); ii++ )
    {
        SCH_COMPONENT*  comp;
        NETLIST_OBJECT* nitem = aObjectsList[ii];

        // New net found, write net id;
        if( ( netCode = nitem->GetNet() ) != lastNetCode )
        {
            sameNetcodeCount = 0;              // Items count for this net
            netName = nitem->GetNetName();

            netcodeName.Printf( wxT( "Net %d " ), netCode );
            netcodeName << wxT( "\"" ) << netName << wxT( "\"" );

            // Add the netname without prefix, in cases we need only the
            // "short" netname
            netcodeName += wxT( " \"" ) + nitem->GetShortNetName() + wxT( "\"" );
            lastNetCode  = netCode;
        }

        if( nitem->m_Type != NET_PIN )
            continue;

        if( nitem->m_Flag != 0 )     // Redundant pin, skip it
            continue;

        comp = nitem->GetComponentParent();

        // Get the reference for the net name and the main parent component
        ref = comp->GetRef( &nitem->m_SheetPath );
        if( ref[0] == wxChar( '#' ) )
            continue;                 // Pseudo component (Like Power symbol)

        // Print the pin list for this net, use special handling if
        // 2 or more items are connected:

        // if first item for this net found, defer printing this connection
        // until a second item will is found
        if( ++sameNetcodeCount == 1 )
        {
            snprintf( firstItemInNet, sizeof(firstItemInNet), " %s %.4s\n",
                      TO_UTF8( ref ),
                      (const char*) &aObjectsList[ii]->m_PinNum );
        }

        // Second item for this net found, print the Net name, and the
        // first item
        if( sameNetcodeCount == 2 )
        {
            ret |= fprintf( f, "%s\n", TO_UTF8( netcodeName ) );
            ret |= fputs( firstItemInNet, f );
        }

        if( sameNetcodeCount >= 2 )
            ret |= fprintf( f, " %s %.4s\n", TO_UTF8( ref ),
                     (const char*) &nitem->m_PinNum );
    }

    return ret >= 0;
}

/**
 * Function findBestNetNameForEachNet
 * fill the .m_NetNameCandidate member of each item of aNetItemBuffer
 * with a reference to the "best" NETLIST_OBJECT usable to give a name to the net
 * If no suitable object found, .m_NetNameCandidate is filled with 0.
 * The "best" NETLIST_OBJECT is a NETLIST_OBJECT that have the type label
 * and by priority order:
 * the label is global or local
 * the label is in the first sheet in a hierarchy (the root sheet has the most priority)
 * alphabetic order.
 */
void NETLIST_OBJECT_LIST::findBestNetNameForEachNet()
{
    int netcode = 0;            // current netcode for tested items
    unsigned idxstart = 0;      // index of the first item of this net
    NETLIST_OBJECT* item;
    NETLIST_OBJECT* candidate;

    // Pass 1: find the best name for labelled nets:
    item = NULL;
    candidate = NULL;
    for( unsigned ii = 0; ii <= size(); ii++ )
    {

        if( ii == size() ) // last item already found
            netcode = -2;
        else
            item = GetItem( ii );

        if( netcode != item->GetNet() )     // End of net found
        {
            if( candidate )         // One or more labels exists, find the best
            {
                for (unsigned jj = idxstart; jj < ii; jj++ )
                    GetItem( jj )->SetNetNameCandidate( candidate );
            }

            if( netcode == -2 )
                break;

            netcode = item->GetNet();
            candidate = NULL;
            idxstart = ii;
        }

        switch( item->m_Type )
        {
        case NET_HIERLABEL:
        case NET_LABEL:
        case NET_PINLABEL:
        case NET_GLOBLABEL:
            // A candidate is found: select the better between the previous
            // and this one
            if( candidate == NULL )
                candidate = item;
            else
            {
                if( evalLabelsPriority( item, candidate ) )
                    // item has a highter priority than candidate
                    // so update the best candidate
                    candidate = item;
            }
            break;

        default:
            break;
        }
    }

    // Pass 2: find the best name for not labelled nets:
    // The "default" net name is Net-<<Ref cmp>_Pad<num pad>>
    // (see NETLIST_OBJECT::GetShortNetName())
    // therefore the "best" is the short net name alphabetically classed first
    // (to avoid net names changes when the net is not modified,
    // even if components are moved or deleted and undelete or replaced, as long
    // the reference is kept)

    // Build the list of items with no net names
    NETLIST_OBJECT_LIST list;
    for( unsigned ii = 0; ii < size(); ii++ )
    {
        item = GetItem( ii );
        if( !item->HasNetNameCandidate() )
            list.push_back( item );
    }

    if( list.size() == 0 )
        return;

    idxstart = 0;
    candidate = NULL;
    netcode = list.GetItemNet( 0 );

    for( unsigned ii = 0; ii <= list.size(); ii++ )
    {
        if( ii < list.size() )
            item = list.GetItem( ii );

        if( netcode != item->GetNet() || ii >= list.size() )     // End of net found
        {
//.........这里部分代码省略.........