C++ PICKED_ITEMS_LIST::ClearListAndDeleteItems方法代码示例

void PCB_EDIT_FRAME::Start_Move_Zone_Outlines( wxDC* DC, ZONE_CONTAINER* aZone )
{
    // Show the Net
    if( aZone->IsOnCopperLayer() ) // Show the Net
    {
        if( GetBoard()->IsHighLightNetON() )
        {
            HighLight( DC );  // Remove old highlight selection
        }

        ZONE_SETTINGS zoneInfo = GetZoneSettings();
        zoneInfo.m_NetcodeSelection = aZone->GetNet();
        SetZoneSettings( zoneInfo );

        GetBoard()->SetHighLightNet( aZone->GetNet() );
        HighLight( DC );
    }

    s_PickedList.ClearListAndDeleteItems();
    s_AuxiliaryList.ClearListAndDeleteItems();
    SaveCopyOfZones( s_PickedList, GetBoard(), aZone->GetNet(),
                     aZone->GetLayer() );

    aZone->SetFlags( IS_MOVED );
    m_canvas->SetMouseCapture( Show_Zone_Corner_Or_Outline_While_Move_Mouse,
                                Abort_Zone_Move_Corner_Or_Outlines );
    s_CursorLastPosition = s_CornerInitialPosition = GetScreen()->GetCrossHairPosition();
    s_CornerIsNew = false;
    s_AddCutoutToCurrentZone = false;
    s_CurrentZone = NULL;
}

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;

    bool success;

    if( aZone->GetIsKeepout() )
        success = InvokeKeepoutAreaEditor( this, &zoneSettings );
    else if( aZone->IsOnCopperLayer() )
        success = InvokeCopperZonesEditor( this, &zoneSettings );
    else
        success = InvokeNonCopperZonesEditor( this, aZone, &zoneSettings );

    if( success )
    {
        zoneSettings.ExportSetting( *newZone );
        newZone->m_Poly->Hatch();

        s_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()->OnAreaPolygonModified( &s_AuxiliaryList, newZone );

        // 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, s_AuxiliaryList, GetBoard() );
        SaveCopyInUndoList( s_PickedList, UR_UNSPECIFIED );
        s_PickedList.ClearItemsList();

        OnModify();
    }
    else
        delete newZone;
}

/** Abort function for drag or move track
 */
static void Abort_MoveTrack( EDA_DRAW_PANEL* aPanel, wxDC* aDC )
{
    PCB_EDIT_FRAME* frame = (PCB_EDIT_FRAME*) aPanel->GetParent();
    BOARD * pcb = frame->GetBoard();

    pcb->HighLightOFF();
    pcb->PopHighLight();

    frame->SetCurItem( NULL );
    aPanel->SetMouseCapture( NULL, NULL );

    // Undo move and redraw trace segments.
    for( unsigned jj=0 ; jj < g_DragSegmentList.size(); jj++ )
    {
        TRACK* track = g_DragSegmentList[jj].m_Track;
        g_DragSegmentList[jj].RestoreInitialValues();
        track->SetState( IN_EDIT, false );
        track->ClearFlags();
    }

    // Clear the undo picker list:
    s_ItemsListPicker.ClearListAndDeleteItems();
    EraseDragList();
    aPanel->Refresh();
}

/* Function called to abort a track creation
 */
static void Abort_Create_Track( EDA_DRAW_PANEL* Panel, wxDC* DC )
{
    PCB_EDIT_FRAME* frame = (PCB_EDIT_FRAME*) Panel->GetParent();
    BOARD* pcb = frame->GetBoard();
    TRACK* track = (TRACK*) frame->GetCurItem();

    if( track && ( track->Type()==PCB_VIA_T || track->Type()==PCB_TRACE_T ) )
    {
        // Erase the current drawing
        ShowNewTrackWhenMovingCursor( Panel, DC, wxDefaultPosition, false );

        if( pcb->IsHighLightNetON() )
            frame->HighLight( DC );

        pcb->PopHighLight();

        if( pcb->IsHighLightNetON() )
            pcb->DrawHighLight( Panel, DC, pcb->GetHighLightNetCode() );

        frame->ClearMsgPanel();

        // Undo pending changes (mainly a lock point creation) and clear the
        // undo picker list:
        frame->PutDataInPreviousState( &s_ItemsListPicker, false, false );
        s_ItemsListPicker.ClearListAndDeleteItems();

        // Delete current (new) track
        g_CurrentTrackList.DeleteAll();
    }

    frame->SetCurItem( NULL );
}

void PCB_EDIT_FRAME::Start_Move_Zone_Drag_Outline_Edge( wxDC*           DC,
                                                        ZONE_CONTAINER* aZone,
                                                        int             corner_id )
{
    aZone->SetFlags( IS_DRAGGED );
    aZone->SetSelectedCorner( corner_id );
    m_canvas->SetMouseCapture( Show_Zone_Corner_Or_Outline_While_Move_Mouse,
                                Abort_Zone_Move_Corner_Or_Outlines );
    s_CursorLastPosition     = s_CornerInitialPosition = GetCrossHairPosition();
    s_AddCutoutToCurrentZone = false;
    s_CurrentZone = NULL;

    s_PickedList.ClearListAndDeleteItems();
    s_AuxiliaryList.ClearListAndDeleteItems();
    SaveCopyOfZones( s_PickedList, GetBoard(), aZone->GetNetCode(), aZone->GetLayer() );
}

void PCB_EDIT_FRAME::Start_Move_Zone_Corner( wxDC* DC, ZONE_CONTAINER* aZone,
                                             int corner_id, bool IsNewCorner )
{
    if( aZone->IsOnCopperLayer() ) // Show the Net
    {
        if( GetBoard()->IsHighLightNetON() && DC )
        {
            HighLight( DC );  // Remove old highlight selection
        }

        ZONE_SETTINGS zoneInfo = GetZoneSettings();
        zoneInfo.m_NetcodeSelection = aZone->GetNet();
        SetZoneSettings( zoneInfo );

        GetBoard()->SetHighLightNet( aZone->GetNet() );

        if( DC )
            HighLight( DC );
    }


    // Prepare copy of old zones, for undo/redo.
    // if the corner is new, remove it from list, save and insert it in list
    int cx = aZone->m_Poly->GetX( corner_id );
    int cy = aZone->m_Poly->GetY( corner_id );

    if ( IsNewCorner )
        aZone->m_Poly->DeleteCorner( corner_id );

    s_AuxiliaryList.ClearListAndDeleteItems();
    s_PickedList.ClearListAndDeleteItems();

    SaveCopyOfZones( s_PickedList, GetBoard(), aZone->GetNet(),
                     aZone->GetLayer() );

    if ( IsNewCorner )
        aZone->m_Poly->InsertCorner(corner_id-1, cx, cy );

    aZone->SetFlags( IN_EDIT );
    m_canvas->SetMouseCapture( Show_Zone_Corner_Or_Outline_While_Move_Mouse,
                                Abort_Zone_Move_Corner_Or_Outlines );
    s_CornerInitialPosition = aZone->GetCornerPosition( corner_id );
    s_CornerIsNew = IsNewCorner;
    s_AddCutoutToCurrentZone = false;
    s_CurrentZone = NULL;
}

void PCB_EDIT_FRAME::Remove_Zone_Corner( wxDC* DC, ZONE_CONTAINER* aZone )
{
    OnModify();

    if( aZone->m_Poly->GetNumCorners() <= 3 )
    {
        m_canvas->RefreshDrawingRect( aZone->GetBoundingBox() );

        if( DC )
        {  // Remove the full zone because this is no more an area
            aZone->UnFill();
            aZone->DrawFilledArea( m_canvas, DC, GR_XOR );
        }

        GetBoard()->Delete( aZone );
        return;
    }

    int layer = aZone->GetLayer();

    if( DC )
    {
        GetBoard()->RedrawAreasOutlines( m_canvas, DC, GR_XOR, layer );
        GetBoard()->RedrawFilledAreas( m_canvas, DC, GR_XOR, layer );
    }

    s_AuxiliaryList.ClearListAndDeleteItems();
    s_PickedList. ClearListAndDeleteItems();
    SaveCopyOfZones( s_PickedList, GetBoard(), aZone->GetNet(),
                     aZone->GetLayer() );
    aZone->m_Poly->DeleteCorner( aZone->m_CornerSelection );

    // modify zones outlines according to the new aZone shape
    GetBoard()->OnAreaPolygonModified( &s_AuxiliaryList, aZone );

    if( DC )
    {
        GetBoard()->RedrawAreasOutlines( m_canvas, DC, GR_OR, layer );
        GetBoard()->RedrawFilledAreas( m_canvas, DC, GR_OR, layer );
    }

    UpdateCopyOfZonesList( s_PickedList, s_AuxiliaryList, GetBoard() );
    SaveCopyInUndoList(s_PickedList, UR_UNSPECIFIED);
    s_PickedList.ClearItemsList(); // s_ItemsListPicker is no more owner of picked items

    int ii = GetBoard()->GetAreaIndex( aZone );     // test if aZone exists

    if( ii < 0 )
        aZone = NULL;   // aZone does not exist anymore, after combining zones

    int error_count = GetBoard()->Test_Drc_Areas_Outlines_To_Areas_Outlines( aZone, true );

    if( error_count )
    {
        DisplayError( this, _( "Area: DRC outline error" ) );
    }
}

/**
 * Function Abort_Zone_Move_Corner_Or_Outlines
 * cancels the Begin_Zone state if at least one EDGE_ZONE has been created.
 */
void Abort_Zone_Move_Corner_Or_Outlines( EDA_DRAW_PANEL* Panel, wxDC* DC )
{
    PCB_EDIT_FRAME* pcbframe = (PCB_EDIT_FRAME*) Panel->GetParent();
    ZONE_CONTAINER* zone     = (ZONE_CONTAINER*) pcbframe->GetCurItem();

    if( zone->IsMoving() )
    {
        wxPoint offset;
        offset = s_CornerInitialPosition - s_CursorLastPosition;
        zone->Move( offset );
    }
    else if( zone->IsDragging() )
    {
        wxPoint offset;
        offset = s_CornerInitialPosition - s_CursorLastPosition;
        zone->MoveEdge( offset );
    }
    else
    {
        if( s_CornerIsNew )
        {
            zone->m_Poly->DeleteCorner( zone->m_CornerSelection );
        }
        else
        {
            wxPoint pos = s_CornerInitialPosition;
            zone->m_Poly->MoveCorner( zone->m_CornerSelection, pos.x, pos.y );
        }
    }

    Panel->SetMouseCapture( NULL, NULL );
    s_AuxiliaryList.ClearListAndDeleteItems();
    s_PickedList. ClearListAndDeleteItems();
    Panel->Refresh();

    pcbframe->SetCurItem( NULL );
    zone->ClearFlags();
    s_AddCutoutToCurrentZone = false;
    s_CurrentZone = NULL;
}

/* Route all traces
 * :
 *  1 if OK
 * -1 if escape (stop being routed) request
 * -2 if default memory allocation
 */
int PCB_EDIT_FRAME::Solve( wxDC* DC, int aLayersCount )
{
    int           current_net_code;
    int           row_source, col_source, row_target, col_target;
    int           success, nbsucces = 0, nbunsucces = 0;
    NETINFO_ITEM* net;
    bool          stop = false;
    wxString      msg;
    int           routedCount = 0;      // routed ratsnest count
    bool          two_sides = aLayersCount == 2;

    m_canvas->SetAbortRequest( false );

    s_Clearance = GetBoard()->GetDesignSettings().GetDefault()->GetClearance();

    // Prepare the undo command info
    s_ItemsListPicker.ClearListAndDeleteItems();  // Should not be necessary, but...

    // go until no more work to do
    GetWork( &row_source, &col_source, &current_net_code,
             &row_target, &col_target, &pt_cur_ch ); // First net to route.

    for( ; row_source != ILLEGAL; GetWork( &row_source, &col_source,
                                           &current_net_code, &row_target,
                                           &col_target,
                                           &pt_cur_ch ) )
    {
        // Test to stop routing ( escape key pressed )
        wxYield();

        if( m_canvas->GetAbortRequest() )
        {
            if( IsOK( this, _( "Abort routing?" ) ) )
            {
                success = STOP_FROM_ESC;
                stop    = true;
                break;
            }
            else
            {
                m_canvas->SetAbortRequest( false );
            }
        }

        EraseMsgBox();

        routedCount++;
        net = GetBoard()->FindNet( current_net_code );

        if( net )
        {
            msg.Printf( wxT( "[%8.8s]" ), GetChars( net->GetNetname() ) );
            AppendMsgPanel( wxT( "Net route" ), msg, BROWN );
            msg.Printf( wxT( "%d / %d" ), routedCount, RoutingMatrix.m_RouteCount );
            AppendMsgPanel( wxT( "Activity" ), msg, BROWN );
        }

        segm_oX = GetBoard()->GetBoundingBox().GetX() + (RoutingMatrix.m_GridRouting * col_source);
        segm_oY = GetBoard()->GetBoundingBox().GetY() + (RoutingMatrix.m_GridRouting * row_source);
        segm_fX = GetBoard()->GetBoundingBox().GetX() + (RoutingMatrix.m_GridRouting * col_target);
        segm_fY = GetBoard()->GetBoundingBox().GetY() + (RoutingMatrix.m_GridRouting * row_target);

        // Draw segment.
        GRLine( m_canvas->GetClipBox(), DC,
                segm_oX, segm_oY, segm_fX, segm_fY,
                0, WHITE );
        pt_cur_ch->m_PadStart->Draw( m_canvas, DC, GR_OR | GR_HIGHLIGHT );
        pt_cur_ch->m_PadEnd->Draw( m_canvas, DC, GR_OR | GR_HIGHLIGHT );

        success = Autoroute_One_Track( this, DC,
                                       two_sides, row_source, col_source,
                                       row_target, col_target, pt_cur_ch );

        switch( success )
        {
        case NOSUCCESS:
            pt_cur_ch->m_Status |= CH_UNROUTABLE;
            nbunsucces++;
            break;

        case STOP_FROM_ESC:
            stop = true;
            break;

        case ERR_MEMORY:
            stop = true;
            break;

        default:
            nbsucces++;
            break;
        }

        msg.Printf( wxT( "%d" ), nbsucces );
//.........这里部分代码省略.........

void PCB_EDIT_FRAME::Edit_Zone_Params( wxDC* DC, ZONE_CONTAINER* aZone )
{
    ZONE_EDIT_T     edited;
    ZONE_SETTINGS   zoneInfo = GetZoneSettings();

    m_canvas->SetIgnoreMouseEvents( true );

    // Save initial zones configuration, for undo/redo, before adding new zone
    // note the net name and the layer can be changed, so we must save all zones
    s_AuxiliaryList.ClearListAndDeleteItems();
    s_PickedList.ClearListAndDeleteItems();
    SaveCopyOfZones(s_PickedList, GetBoard(), -1, -1 );

    if( aZone->GetIsKeepout() )
    {
        // edit a keepout area on a copper layer
        zoneInfo << *aZone;
        edited = InvokeKeepoutAreaEditor( this, &zoneInfo );
    }
    else if( aZone->GetLayer() < FIRST_NO_COPPER_LAYER )
    {
        // edit a zone on a copper layer

        zoneInfo << *aZone;

        edited = InvokeCopperZonesEditor( this, &zoneInfo );
    }
    else
    {
        edited = InvokeNonCopperZonesEditor( this, aZone, &zoneInfo );
    }

    m_canvas->MoveCursorToCrossHair();
    m_canvas->SetIgnoreMouseEvents( false );

    if( edited == ZONE_ABORT )
    {
        s_AuxiliaryList.ClearListAndDeleteItems();
        s_PickedList.ClearListAndDeleteItems();
        return;
    }

    SetZoneSettings( zoneInfo );

    if( edited == ZONE_EXPORT_VALUES )
    {
        UpdateCopyOfZonesList( s_PickedList, s_AuxiliaryList, GetBoard() );
        SaveCopyInUndoList(s_PickedList, UR_UNSPECIFIED);
        s_PickedList.ClearItemsList(); // s_ItemsListPicker is no more owner of picked items
        return;
    }

    // Undraw old zone outlines
    for( int ii = 0; ii < GetBoard()->GetAreaCount(); ii++ )
    {
        ZONE_CONTAINER* edge_zone = GetBoard()->GetArea( ii );
        edge_zone->Draw( m_canvas, DC, GR_XOR );
    }

    zoneInfo.ExportSetting( *aZone );

    NETINFO_ITEM* net = GetBoard()->FindNet( zoneInfo.m_NetcodeSelection );

    if( net )   // net == NULL should not occur
        aZone->SetNetName( net->GetNetname() );

    // Combine zones if possible
    GetBoard()->OnAreaPolygonModified( &s_AuxiliaryList, aZone );

    // Redraw the real new zone outlines
    GetBoard()->RedrawAreasOutlines( m_canvas, DC, GR_OR, -1 );

    UpdateCopyOfZonesList( s_PickedList, s_AuxiliaryList, GetBoard() );
    SaveCopyInUndoList(s_PickedList, UR_UNSPECIFIED);

    s_PickedList.ClearItemsList();  // s_ItemsListPicker is no longer owner of picked items

    OnModify();
}

bool PCB_EDIT_FRAME::End_Zone( wxDC* DC )
{
    ZONE_CONTAINER* zone = GetBoard()->m_CurrentZoneContour;

    if( !zone )
        return true;

    // Validate the current outline:
    if( zone->GetNumCorners() <= 2 )   // An outline must have 3 corners or more
    {
        Abort_Zone_Create_Outline( m_canvas, DC );
        return true;
    }

    // Remove the last corner if is is at the same location as the prevoius corner
    zone->m_Poly->RemoveNullSegments();

    // Validate the current edge:
    int icorner = zone->GetNumCorners() - 1;
    if( zone->IsOnCopperLayer() )
    {
        if( Drc_On && m_drc->Drc( zone, icorner - 1 ) == BAD_DRC )  // we can't validate last edge
            return false;

        if( Drc_On && m_drc->Drc( zone, icorner ) == BAD_DRC )      // we can't validate the closing edge
        {
            DisplayError( this,
                          _( "DRC error: closing this area creates a drc error with an other area" ) );
            m_canvas->MoveCursorToCrossHair();
            return false;
        }
    }

    zone->ClearFlags();

    zone->DrawWhileCreateOutline( m_canvas, DC, GR_XOR );

    m_canvas->SetMouseCapture( NULL, NULL );

    // Undraw old drawings, because they can have important changes
    int layer = zone->GetLayer();
    GetBoard()->RedrawAreasOutlines( m_canvas, DC, GR_XOR, layer );
    GetBoard()->RedrawFilledAreas( m_canvas, DC, GR_XOR, layer );

    // Save initial zones configuration, for undo/redo, before adding new zone
    s_AuxiliaryList.ClearListAndDeleteItems();
    s_PickedList.ClearListAndDeleteItems();
    SaveCopyOfZones(s_PickedList, GetBoard(), zone->GetNet(), zone->GetLayer() );

    // Put new zone in list
    if( !s_CurrentZone )
    {
        zone->m_Poly->CloseLastContour(); // Close the current corner list
        GetBoard()->Add( zone );
        GetBoard()->m_CurrentZoneContour = NULL;

        // Add this zone in picked list, as new item
        ITEM_PICKER picker( zone, UR_NEW );
        s_PickedList.PushItem( picker );
    }
    else    // Append this outline as a cutout to an existing zone
    {
        for( int ii = 0; ii < zone->GetNumCorners(); ii++ )
        {
            s_CurrentZone->AppendCorner( zone->GetCornerPosition( ii ) );
        }

        s_CurrentZone->m_Poly->CloseLastContour(); // Close the current corner list
        zone->RemoveAllContours();      // All corners are copied in s_CurrentZone. Free corner list.
        zone = s_CurrentZone;
    }

    s_AddCutoutToCurrentZone = false;
    s_CurrentZone = NULL;

    GetScreen()->SetCurItem( NULL );       // This outline can be deleted when merging outlines

    // Combine zones if possible :
    GetBoard()->OnAreaPolygonModified( &s_AuxiliaryList, zone );

    // Redraw the real edge zone :
    GetBoard()->RedrawAreasOutlines( m_canvas, DC, GR_OR, layer );
    GetBoard()->RedrawFilledAreas( m_canvas, DC, GR_OR, layer );

    int ii = GetBoard()->GetAreaIndex( zone );   // test if zone exists

    if( ii < 0 )
        zone = NULL;                        // was removed by combining zones

    int error_count = GetBoard()->Test_Drc_Areas_Outlines_To_Areas_Outlines( zone, true );

    if( error_count )
    {
        DisplayError( this, _( "Area: DRC outline error" ) );
    }

    UpdateCopyOfZonesList( s_PickedList, s_AuxiliaryList, GetBoard() );
    SaveCopyInUndoList(s_PickedList, UR_UNSPECIFIED);
    s_PickedList.ClearItemsList(); // s_ItemsListPicker is no more owner of picked items

//.........这里部分代码省略.........

/*
 * This function starts a new track segment.
 * If a new track segment is in progress, ends this current new segment,
 * and created a new one.
 */
TRACK* PCB_EDIT_FRAME::Begin_Route( TRACK* aTrack, wxDC* aDC )
{
    TRACK*      TrackOnStartPoint = NULL;
    int         layerMask = GetLayerMask( GetScreen()->m_Active_Layer );
    BOARD_CONNECTED_ITEM* LockPoint;
    wxPoint     pos = GetScreen()->GetCrossHairPosition();

    if( aTrack == NULL )  // Starting a new track segment
    {
        m_canvas->SetMouseCapture( ShowNewTrackWhenMovingCursor, Abort_Create_Track );

        // Prepare the undo command info
        s_ItemsListPicker.ClearListAndDeleteItems();  // Should not be necessary, but...

        GetBoard()->PushHighLight();

        // erase old highlight
        if( GetBoard()->IsHighLightNetON() )
            HighLight( aDC );

        g_CurrentTrackList.PushBack( new TRACK( GetBoard() ) );
        g_CurrentTrackSegment->SetFlags( IS_NEW );

        GetBoard()->SetHighLightNet( 0 );

        // Search for a starting point of the new track, a track or pad
        LockPoint = GetBoard()->GetLockPoint( pos, layerMask );

        D_PAD* pad = NULL;
        if( LockPoint ) // An item (pad or track) is found
        {
            if( LockPoint->Type() == PCB_PAD_T )
            {
                pad = (D_PAD*) LockPoint;

                // A pad is found: put the starting point on pad center
                pos = pad->GetPosition();
                GetBoard()->SetHighLightNet( pad->GetNet() );
            }
            else // A track segment is found
            {
                TrackOnStartPoint    = (TRACK*) LockPoint;
                GetBoard()->SetHighLightNet( TrackOnStartPoint->GetNet() );
                GetBoard()->CreateLockPoint( pos, TrackOnStartPoint, &s_ItemsListPicker );
            }
        }
        else
        {
            // Not a starting point, but a filled zone area can exist. This is also a
            // good starting point.
            ZONE_CONTAINER* zone;
            zone = GetBoard()->HitTestForAnyFilledArea( pos, GetScreen()-> m_Active_Layer );

            if( zone )
                GetBoard()->SetHighLightNet( zone->GetNet() );
        }

        D( g_CurrentTrackList.VerifyListIntegrity() );

        BuildAirWiresTargetsList( LockPoint, wxPoint( 0, 0 ), true );

        D( g_CurrentTrackList.VerifyListIntegrity() );

        GetBoard()->HighLightON();
        GetBoard()->DrawHighLight( m_canvas, aDC, GetBoard()->GetHighLightNetCode() );

        // Display info about track Net class, and init track and vias sizes:
        g_CurrentTrackSegment->SetNet( GetBoard()->GetHighLightNetCode() );
        GetBoard()->SetCurrentNetClass( g_CurrentTrackSegment->GetNetClassName() );

        g_CurrentTrackSegment->SetLayer( GetScreen()->m_Active_Layer );
        g_CurrentTrackSegment->SetWidth( GetBoard()->GetCurrentTrackWidth() );

        if( GetBoard()->GetDesignSettings().m_UseConnectedTrackWidth )
        {
            if( TrackOnStartPoint && TrackOnStartPoint->Type() == PCB_TRACE_T )
                g_CurrentTrackSegment->SetWidth( TrackOnStartPoint->GetWidth());
        }

        g_CurrentTrackSegment->SetStart( pos );
        g_CurrentTrackSegment->SetEnd( pos );

        if( pad )
        {
            g_CurrentTrackSegment->m_PadsConnected.push_back( pad );
            // Useful to display track length, if the pad has a die length:
            g_CurrentTrackSegment->SetState( BEGIN_ONPAD, ON );
            g_CurrentTrackSegment->start = pad;
        }

        if( g_TwoSegmentTrackBuild )
        {
            // Create 2nd segment
            g_CurrentTrackList.PushBack( (TRACK*)g_CurrentTrackSegment->Clone() );

//.........这里部分代码省略.........