C++ DRAWSEGMENT::GetEnd方法代码示例

/* Initialize the drawing of a segment of type other than trace.
 */
DRAWSEGMENT* PCB_EDIT_FRAME::Begin_DrawSegment( DRAWSEGMENT* Segment, STROKE_T shape, wxDC* DC )
{
    int          lineWidth;
    DRAWSEGMENT* DrawItem;

    lineWidth = GetDesignSettings().GetLineThickness( GetActiveLayer() );

    if( Segment == NULL )        // Create new segment.
    {
        SetCurItem( Segment = new DRAWSEGMENT( GetBoard() ) );
        Segment->SetFlags( IS_NEW );
        Segment->SetLayer( GetActiveLayer() );
        Segment->SetWidth( lineWidth );
        Segment->SetShape( shape );
        Segment->SetAngle( 900 );
        Segment->SetStart( GetCrossHairPosition() );
        Segment->SetEnd( GetCrossHairPosition() );
        m_canvas->SetMouseCapture( DrawSegment, Abort_EditEdge );
    }
    else
    {
        // The ending point coordinate Segment->m_End was updated by the function
        // DrawSegment() called on a move mouse event during the segment creation
        if( Segment->GetStart() != Segment->GetEnd() )
        {
            if( Segment->GetShape() == S_SEGMENT )
            {
                SaveCopyInUndoList( Segment, UR_NEW );
                GetBoard()->Add( Segment );

                OnModify();
                Segment->ClearFlags();

                Segment->Draw( m_canvas, DC, GR_OR );

                DrawItem = Segment;

                SetCurItem( Segment = new DRAWSEGMENT( GetBoard() ) );

                Segment->SetFlags( IS_NEW );
                Segment->SetLayer( DrawItem->GetLayer() );
                Segment->SetWidth( lineWidth );
                Segment->SetShape( DrawItem->GetShape() );
                Segment->SetType( DrawItem->GetType() );
                Segment->SetAngle( DrawItem->GetAngle() );
                Segment->SetStart( DrawItem->GetEnd() );
                Segment->SetEnd( DrawItem->GetEnd() );
                DrawSegment( m_canvas, DC, wxDefaultPosition, false );
            }
            else
            {
                End_Edge( Segment, DC );
                Segment = NULL;
            }
        }
    }

    return Segment;
}

int DRAWING_TOOL::DrawLine( const TOOL_EVENT& aEvent )
{
    BOARD_ITEM_CONTAINER* parent = m_frame->GetModel();
    DRAWSEGMENT* line = m_editModules ? new EDGE_MODULE( (MODULE*) parent ) : new DRAWSEGMENT;
    boost::optional<VECTOR2D> startingPoint;
    BOARD_COMMIT commit( m_frame );

    SCOPED_DRAW_MODE scopedDrawMode( m_mode, MODE::LINE );

    m_frame->SetToolID( m_editModules ? ID_MODEDIT_LINE_TOOL : ID_PCB_ADD_LINE_BUTT,
                        wxCURSOR_PENCIL, _( "Add graphic line" ) );

    while( drawSegment( S_SEGMENT, line, startingPoint ) )
    {
        if( line )
        {
            commit.Add( line );
            commit.Push( _( "Draw a line segment" ) );
            startingPoint = line->GetEnd();
        }
        else
        {
            startingPoint = boost::none;
        }

        line = m_editModules ? new EDGE_MODULE( (MODULE*) parent ) : new DRAWSEGMENT;
    }

    m_frame->SetToolID( ID_NO_TOOL_SELECTED, wxCURSOR_DEFAULT, wxEmptyString );

    return 0;
}

int DRAWING_TOOL::DrawLine( const TOOL_EVENT& aEvent )
{
    boost::optional<VECTOR2D> startingPoint;

    if( m_editModules )
    {
        m_frame->SetToolID( ID_MODEDIT_LINE_TOOL, wxCURSOR_PENCIL, _( "Add graphic line" ) );

        EDGE_MODULE* line = new EDGE_MODULE( m_board->m_Modules );

        while( drawSegment( S_SEGMENT, reinterpret_cast<DRAWSEGMENT*&>( line ), startingPoint  ) )
        {
            if( line )
            {
                m_frame->OnModify();
                m_frame->SaveCopyInUndoList( m_board->m_Modules, UR_MODEDIT );
                line->SetParent( m_board->m_Modules );
                line->SetLocalCoord();
                m_board->m_Modules->GraphicalItems().PushFront( line );
                startingPoint = line->GetEnd();
            }
            else
            {
                startingPoint = boost::none;
            }

            line = new EDGE_MODULE( m_board->m_Modules );
        }
    }
    else // !m_editModules case
    {
        m_frame->SetToolID( ID_PCB_ADD_LINE_BUTT, wxCURSOR_PENCIL, _( "Add graphic line" ) );

        DRAWSEGMENT* line = new DRAWSEGMENT;

        while( drawSegment( S_SEGMENT, line, startingPoint ) )
        {
            if( line )
            {
                m_board->Add( line );
                m_frame->OnModify();
                m_frame->SaveCopyInUndoList( line, UR_NEW );
                startingPoint = line->GetEnd();
            }
            else
            {
                startingPoint = boost::none;
            }

            line = new DRAWSEGMENT;
        }
    }

    m_frame->SetToolID( ID_NO_TOOL_SELECTED, wxCURSOR_DEFAULT, wxEmptyString );

    return 0;
}

/* Creates the section $BOARD.
 *  We output here only the board perimeter
 */
static void CreateBoardSection( FILE* aFile, BOARD* aPcb )
{
    fputs( "$BOARD\n", aFile );

    // Extract the board edges
    for( EDA_ITEM* drawing = aPcb->m_Drawings; drawing != 0;
        drawing = drawing->Next() )
    {
        if( drawing->Type() == PCB_LINE_T )
        {
            DRAWSEGMENT* drawseg = static_cast<DRAWSEGMENT*>( drawing );
            if( drawseg->GetLayer() == Edge_Cuts )
            {
                // XXX GenCAD supports arc boundaries but I've seen nothing that reads them
                fprintf( aFile, "LINE %g %g %g %g\n",
                         MapXTo( drawseg->GetStart().x ), MapYTo( drawseg->GetStart().y ),
                         MapXTo( drawseg->GetEnd().x ), MapYTo( drawseg->GetEnd().y ) );
            }
        }
    }

    fputs( "$ENDBOARD\n\n", aFile );
}

/*
 * Redraw segment during cursor movement.
 */
static void Move_Segment( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aPosition,
                          bool aErase )
{
    DRAWSEGMENT* segment = (DRAWSEGMENT*) aPanel->GetScreen()->GetCurItem();

    if( segment == NULL )
        return;

    if( aErase )
        segment->Draw( aPanel, aDC, GR_XOR );

    wxPoint delta;
    delta = aPanel->GetParent()->GetCrossHairPosition() - s_LastPosition;

    segment->SetStart( segment->GetStart() + delta );
    segment->SetEnd(   segment->GetEnd()   + delta );

    s_LastPosition = aPanel->GetParent()->GetCrossHairPosition();

    segment->Draw( aPanel, aDC, GR_XOR );
}

/**
 * Searches for a DRAWSEGMENT matching a given end point or start point in a list, and
 * if found, removes it from the TYPE_COLLECTOR and returns it, else returns NULL.
 * @param aPoint The starting or ending point to search for.
 * @param aList The list to remove from.
 * @param aLimit is the distance from \a aPoint that still constitutes a valid find.
 * @return DRAWSEGMENT* - The first DRAWSEGMENT that has a start or end point matching
 *   aPoint, otherwise NULL if none.
 */
static DRAWSEGMENT* findPoint( const wxPoint& aPoint, std::vector< DRAWSEGMENT* >& aList, unsigned aLimit )
{
    unsigned min_d = INT_MAX;
    int      ndx_min = 0;

    // find the point closest to aPoint and perhaps exactly matching aPoint.
    for( size_t i = 0; i < aList.size(); ++i )
    {
        DRAWSEGMENT*    graphic = aList[i];
        unsigned        d;

        switch( graphic->GetShape() )
        {
        case S_ARC:
            if( aPoint == graphic->GetArcStart() || aPoint == graphic->GetArcEnd() )
            {
                aList.erase( aList.begin() + i );
                return graphic;
            }

            d = close_ness( aPoint, graphic->GetArcStart() );
            if( d < min_d )
            {
                min_d = d;
                ndx_min = i;
            }

            d = close_ness( aPoint, graphic->GetArcEnd() );
            if( d < min_d )
            {
                min_d = d;
                ndx_min = i;
            }
            break;

        default:
            if( aPoint == graphic->GetStart() || aPoint == graphic->GetEnd() )
            {
                aList.erase( aList.begin() + i );
                return graphic;
            }

            d = close_ness( aPoint, graphic->GetStart() );
            if( d < min_d )
            {
                min_d = d;
                ndx_min = i;
            }

            d = close_ness( aPoint, graphic->GetEnd() );
            if( d < min_d )
            {
                min_d = d;
                ndx_min = i;
            }
        }
    }

    if( min_d <= aLimit )
    {
        DRAWSEGMENT* graphic = aList[ndx_min];
        aList.erase( aList.begin() + ndx_min );
        return graphic;
    }

    return NULL;
}

void DIALOG_GRAPHIC_ITEM_PROPERTIES::initDlg( )
/**************************************************************************/
/* Initialize messages and values in text control,
 * according to the item parameters values
*/
{
    SetFocus();
    m_StandardButtonsSizerOK->SetDefault();

    // Set unit symbol
    wxStaticText * texts_unit[] =
    {
        m_StartPointXUnit,
        m_StartPointYUnit,
        m_EndPointXUnit,
        m_EndPointYUnit,
        m_ThicknessTextUnit,
        m_DefaulThicknessTextUnit,
        NULL
    };

    for( int ii = 0; ; ii++ )
    {
        if( texts_unit[ii] == NULL )
            break;
        texts_unit[ii]->SetLabel( GetAbbreviatedUnitsLabel() );
    }

    wxString msg;

    // Change texts according to the segment shape:
    switch ( m_Item->GetShape() )
    {
    case S_CIRCLE:
        m_StartPointXLabel->SetLabel(_("Center X"));
        m_StartPointYLabel->SetLabel(_("Center Y"));
        m_EndPointXLabel->SetLabel(_("Point X"));
        m_EndPointYLabel->SetLabel(_("Point Y"));
        m_Angle_Text->Show(false);
        m_Angle_Ctrl->Show(false);
        m_AngleUnit->Show(false);
        break;

    case S_ARC:
        m_StartPointXLabel->SetLabel(_("Center X"));
        m_StartPointYLabel->SetLabel(_("Center Y"));
        m_EndPointXLabel->SetLabel(_("Start Point X"));
        m_EndPointYLabel->SetLabel(_("Start Point Y"));
        msg << m_Item->GetAngle();
        m_Angle_Ctrl->SetValue(msg);
        break;

    default:
        m_Angle_Text->Show(false);
        m_Angle_Ctrl->Show(false);
        m_AngleUnit->Show(false);
        break;
    }

    PutValueInLocalUnits( *m_Center_StartXCtrl, m_Item->GetStart().x,
        m_parent->GetInternalUnits() );

    PutValueInLocalUnits( *m_Center_StartYCtrl, m_Item->GetStart().y,
        m_parent->GetInternalUnits() );

    PutValueInLocalUnits( *m_EndX_Radius_Ctrl, m_Item->GetEnd().x,
        m_parent->GetInternalUnits() );

    PutValueInLocalUnits( *m_EndY_Ctrl, m_Item->GetEnd().y,
        m_parent->GetInternalUnits() );

    PutValueInLocalUnits( *m_ThicknessCtrl, m_Item->GetWidth(),
        m_parent->GetInternalUnits() );

    int thickness;

    if( m_Item->GetLayer() == EDGE_N )
        thickness =  m_brdSettings.m_EdgeSegmentWidth;
    else
        thickness =  m_brdSettings.m_DrawSegmentWidth;

    PutValueInLocalUnits( *m_DefaultThicknessCtrl, thickness,
        m_parent->GetInternalUnits() );

    for( int layer=FIRST_NO_COPPER_LAYER; layer <= LAST_NO_COPPER_LAYER;  ++layer )
    {
        m_LayerSelectionCtrl->Append( m_parent->GetBoard()->GetLayerName( layer ) );
    }

    int layer =  m_Item->GetLayer();
    // Control:
    if ( layer < FIRST_NO_COPPER_LAYER )
        layer = FIRST_NO_COPPER_LAYER;
    if ( layer > LAST_NO_COPPER_LAYER )
        layer = LAST_NO_COPPER_LAYER;
    m_LayerSelectionCtrl->SetSelection( layer - FIRST_NO_COPPER_LAYER );
}

/**
 * Function idf_export_outline
 * retrieves line segment information from the edge layer and compiles
 * the data into a form which can be output as an IDFv3 compliant
 * BOARD_OUTLINE section.
 */
static void idf_export_outline( BOARD* aPcb, IDF3_BOARD& aIDFBoard )
{
    double scale = aIDFBoard.GetUserScale();

    DRAWSEGMENT* graphic;               // KiCad graphical item
    IDF_POINT sp, ep;                   // start and end points from KiCad item

    std::list< IDF_SEGMENT* > lines;    // IDF intermediate form of KiCad graphical item
    IDF_OUTLINE* outline = NULL;        // graphical items forming an outline or cutout

    // NOTE: IMPLEMENTATION
    // If/when component cutouts are allowed, we must implement them separately. Cutouts
    // must be added to the board outline section and not to the Other Outline section.
    // The module cutouts should be handled via the idf_export_module() routine.

    double offX, offY;
    aIDFBoard.GetUserOffset( offX, offY );

    // Retrieve segments and arcs from the board
    for( BOARD_ITEM* item = aPcb->m_Drawings; item; item = item->Next() )
    {
        if( item->Type() != PCB_LINE_T || item->GetLayer() != Edge_Cuts )
            continue;

        graphic = (DRAWSEGMENT*) item;

        switch( graphic->GetShape() )
        {
        case S_SEGMENT:
            {
                if( ( graphic->GetStart().x == graphic->GetEnd().x )
                    && ( graphic->GetStart().y == graphic->GetEnd().y ) )
                    break;

                sp.x    = graphic->GetStart().x * scale + offX;
                sp.y    = -graphic->GetStart().y * scale + offY;
                ep.x    = graphic->GetEnd().x * scale + offX;
                ep.y    = -graphic->GetEnd().y * scale + offY;
                IDF_SEGMENT* seg = new IDF_SEGMENT( sp, ep );

                if( seg )
                    lines.push_back( seg );
            }
            break;

        case S_ARC:
            {
                if( ( graphic->GetCenter().x == graphic->GetArcStart().x )
                    && ( graphic->GetCenter().y == graphic->GetArcStart().y ) )
                    break;

                sp.x = graphic->GetCenter().x * scale + offX;
                sp.y = -graphic->GetCenter().y * scale + offY;
                ep.x = graphic->GetArcStart().x * scale + offX;
                ep.y = -graphic->GetArcStart().y * scale + offY;
                IDF_SEGMENT* seg = new IDF_SEGMENT( sp, ep, -graphic->GetAngle() / 10.0, true );

                if( seg )
                    lines.push_back( seg );
            }
            break;

        case S_CIRCLE:
            {
                if( graphic->GetRadius() == 0 )
                    break;

                sp.x = graphic->GetCenter().x * scale + offX;
                sp.y = -graphic->GetCenter().y * scale + offY;
                ep.x = sp.x - graphic->GetRadius() * scale;
                ep.y = sp.y;
                // Circles must always have an angle of +360 deg. to appease
                // quirky MCAD implementations of IDF.
                IDF_SEGMENT* seg = new IDF_SEGMENT( sp, ep, 360.0, true );

                if( seg )
                    lines.push_back( seg );
            }
            break;

        default:
            break;
        }
    }

    // if there is no outline then use the bounding box
    if( lines.empty() )
    {
        goto UseBoundingBox;
    }

    // get the board outline and write it out
    // note: we do not use a try/catch block here since we intend
    // to simply ignore unclosed loops and continue processing
//.........这里部分代码省略.........

void POINT_EDITOR::addCorner( const VECTOR2I& aBreakPoint )
{
    EDA_ITEM* item = m_editPoints->GetParent();
    const SELECTION& selection = m_selectionTool->GetSelection();

    if( item->Type() == PCB_ZONE_AREA_T )
    {
        getEditFrame<PCB_BASE_FRAME>()->OnModify();
        getEditFrame<PCB_BASE_FRAME>()->SaveCopyInUndoList( selection.items, UR_CHANGED );

        ZONE_CONTAINER* zone = static_cast<ZONE_CONTAINER*>( item );
        CPolyLine* outline = zone->Outline();

        // Handle the last segment, so other segments can be easily handled in a loop
        unsigned int nearestIdx = outline->GetCornersCount() - 1, nextNearestIdx = 0;
        SEG side( VECTOR2I( outline->GetPos( nearestIdx ) ),
                  VECTOR2I( outline->GetPos( nextNearestIdx ) ) );
        unsigned int nearestDist = side.Distance( aBreakPoint );

        for( int i = 0; i < outline->GetCornersCount() - 1; ++i )
        {
            side = SEG( VECTOR2I( outline->GetPos( i ) ), VECTOR2I( outline->GetPos( i + 1 ) ) );

            unsigned int distance = side.Distance( aBreakPoint );
            if( distance < nearestDist )
            {
                nearestDist = distance;
                nearestIdx = i;
                nextNearestIdx = i + 1;
            }
        }

        // Find the point on the closest segment
        VECTOR2I sideOrigin( outline->GetPos( nearestIdx ) );
        VECTOR2I sideEnd( outline->GetPos( nextNearestIdx ) );
        SEG nearestSide( sideOrigin, sideEnd );
        VECTOR2I nearestPoint = nearestSide.NearestPoint( aBreakPoint );

        // Do not add points that have the same coordinates as ones that already belong to polygon
        // instead, add a point in the middle of the side
        if( nearestPoint == sideOrigin || nearestPoint == sideEnd )
            nearestPoint = ( sideOrigin + sideEnd ) / 2;

        outline->InsertCorner( nearestIdx, nearestPoint.x, nearestPoint.y );
    }

    else if( item->Type() == PCB_LINE_T || item->Type() == PCB_MODULE_EDGE_T )
    {
        bool moduleEdge = item->Type() == PCB_MODULE_EDGE_T;
        PCB_BASE_FRAME* frame = getEditFrame<PCB_BASE_FRAME>();

        frame->OnModify();

        if( moduleEdge )
            frame->SaveCopyInUndoList( getModel<BOARD>()->m_Modules, UR_MODEDIT );
        else
            frame->SaveCopyInUndoList( selection.items, UR_CHANGED );

        DRAWSEGMENT* segment = static_cast<DRAWSEGMENT*>( item );

        if( segment->GetShape() == S_SEGMENT )
        {
            SEG seg( segment->GetStart(), segment->GetEnd() );
            VECTOR2I nearestPoint = seg.NearestPoint( aBreakPoint );

            // Move the end of the line to the break point..
            segment->SetEnd( wxPoint( nearestPoint.x, nearestPoint.y ) );

            // and add another one starting from the break point
            DRAWSEGMENT* newSegment;

            if( moduleEdge )
            {
                EDGE_MODULE* edge = static_cast<EDGE_MODULE*>( segment );
                assert( segment->GetParent()->Type() == PCB_MODULE_T );
                newSegment = new EDGE_MODULE( *edge );
                edge->SetLocalCoord();
            }
            else
            {
                newSegment = new DRAWSEGMENT( *segment );
            }

            newSegment->ClearSelected();
            newSegment->SetStart( wxPoint( nearestPoint.x, nearestPoint.y ) );
            newSegment->SetEnd( wxPoint( seg.B.x, seg.B.y ) );

            if( moduleEdge )
            {
                static_cast<EDGE_MODULE*>( newSegment )->SetLocalCoord();
                getModel<BOARD>()->m_Modules->Add( newSegment );
            }
            else
            {
                getModel<BOARD>()->Add( newSegment );
            }

            getView()->Add( newSegment );
        }
    }
//.........这里部分代码省略.........

int genPlacementRoutingMatrix( BOARD* aBrd, EDA_MSG_PANEL* messagePanel )
{
    wxString msg;

    RoutingMatrix.UnInitRoutingMatrix();

    EDA_RECT bbox = aBrd->ComputeBoundingBox( true );

    if( bbox.GetWidth() == 0 || bbox.GetHeight() == 0 )
    {
        DisplayError( NULL, _( "No PCB edge found, unknown board size!" ) );
        return 0;
    }

    RoutingMatrix.ComputeMatrixSize( aBrd, true );
    int nbCells = RoutingMatrix.m_Ncols * RoutingMatrix.m_Nrows;

    messagePanel->EraseMsgBox();
    msg.Printf( wxT( "%d" ), RoutingMatrix.m_Ncols );
    messagePanel->SetMessage( 1, _( "Cols" ), msg, GREEN );
    msg.Printf( wxT( "%d" ), RoutingMatrix.m_Nrows );
    messagePanel->SetMessage( 7, _( "Lines" ), msg, GREEN );
    msg.Printf( wxT( "%d" ), nbCells );
    messagePanel->SetMessage( 14, _( "Cells." ), msg, YELLOW );

    // Choose the number of board sides.
    RoutingMatrix.m_RoutingLayersCount = 2;

    RoutingMatrix.InitRoutingMatrix();

    // Display memory usage.
    msg.Printf( wxT( "%d" ), RoutingMatrix.m_MemSize / 1024 );
    messagePanel->SetMessage( 24, wxT( "Mem(Kb)" ), msg, CYAN );

    g_Route_Layer_BOTTOM = LAYER_N_FRONT;

    if( RoutingMatrix.m_RoutingLayersCount > 1 )
        g_Route_Layer_BOTTOM = LAYER_N_BACK;

    g_Route_Layer_TOP = LAYER_N_FRONT;

    // Place the edge layer segments
    TRACK TmpSegm( NULL );

    TmpSegm.SetLayer( UNDEFINED_LAYER );
    TmpSegm.SetNet( -1 );
    TmpSegm.SetWidth( RoutingMatrix.m_GridRouting / 2 );

    EDA_ITEM* PtStruct = aBrd->m_Drawings;

    for( ; PtStruct != NULL; PtStruct = PtStruct->Next() )
    {
        DRAWSEGMENT* DrawSegm;

        switch( PtStruct->Type() )
        {
        case PCB_LINE_T:
            DrawSegm = (DRAWSEGMENT*) PtStruct;

            if( DrawSegm->GetLayer() != EDGE_N )
                break;

            TmpSegm.SetStart( DrawSegm->GetStart() );
            TmpSegm.SetEnd( DrawSegm->GetEnd() );
            TmpSegm.SetShape( DrawSegm->GetShape() );
            TmpSegm.m_Param = DrawSegm->GetAngle();

            TraceSegmentPcb( &TmpSegm, HOLE | CELL_is_EDGE,
                             RoutingMatrix.m_GridRouting, WRITE_CELL );
            break;

        case PCB_TEXT_T:
        default:
            break;
        }
    }

    // Mark cells of the routing matrix to CELL_is_ZONE
    // (i.e. availlable cell to place a module )
    // Init a starting point of attachment to the area.
    RoutingMatrix.OrCell( RoutingMatrix.m_Nrows / 2, RoutingMatrix.m_Ncols / 2,
                          BOTTOM, CELL_is_ZONE );

    // find and mark all other availlable cells:
    for( int ii = 1; ii != 0; )
        ii = propagate();

    // Initialize top layer. to the same value as the bottom layer
    if( RoutingMatrix.m_BoardSide[TOP] )
        memcpy( RoutingMatrix.m_BoardSide[TOP], RoutingMatrix.m_BoardSide[BOTTOM],
                nbCells * sizeof(MATRIX_CELL) );

    return 1;
}

/**
 * Function PlaceCells
 * Initialize the matrix routing by setting obstacles for each occupied cell
 * a cell set to HOLE is an obstacle for tracks and vias
 * a cell set to VIA_IMPOSSIBLE is an obstacle for vias only.
 * a cell set to CELL_is_EDGE is a frontier.
 * Tracks and vias having the same net code as net_code are skipped
 * (htey do not are obstacles)
 *
 * For single-sided Routing 1:
 * BOTTOM side is used, and Route_Layer_BOTTOM = Route_Layer_TOP
 *
 * If flag == FORCE_PADS: all pads will be put in matrix as obstacles.
 */
void PlaceCells( BOARD* aPcb, int net_code, int flag )
{
    int       ux0 = 0, uy0 = 0, ux1, uy1, dx, dy;
    int       marge, via_marge;
    LAYER_MSK layerMask;

    // use the default NETCLASS?
    NETCLASS* nc = aPcb->m_NetClasses.GetDefault();

    int       trackWidth = nc->GetTrackWidth();
    int       clearance  = nc->GetClearance();
    int       viaSize    = nc->GetViaDiameter();

    marge     = clearance + (trackWidth / 2);
    via_marge = clearance + (viaSize / 2);

    // Place PADS on matrix routing:
    for( unsigned i = 0; i < aPcb->GetPadCount(); ++i )
    {
        D_PAD* pad = aPcb->GetPad( i );

        if( net_code != pad->GetNet() || (flag & FORCE_PADS) )
        {
            ::PlacePad( pad, HOLE, marge, WRITE_CELL );
        }

        ::PlacePad( pad, VIA_IMPOSSIBLE, via_marge, WRITE_OR_CELL );
    }

    // Place outlines of modules on matrix routing, if they are on a copper layer
    // or on the edge layer
    TRACK tmpSegm( NULL );  // A dummy track used to create segments.

    for( MODULE* module = aPcb->m_Modules; module; module = module->Next() )
    {
        for( BOARD_ITEM* item = module->GraphicalItems(); item; item = item->Next() )
        {
            switch( item->Type() )
            {
            case PCB_MODULE_EDGE_T:
            {
                EDGE_MODULE* edge = (EDGE_MODULE*) item;

                tmpSegm.SetLayer( edge->GetLayer() );

                if( tmpSegm.GetLayer() == EDGE_N )
                    tmpSegm.SetLayer( UNDEFINED_LAYER );

                tmpSegm.SetStart( edge->GetStart() );
                tmpSegm.SetEnd(   edge->GetEnd() );
                tmpSegm.SetShape( edge->GetShape() );
                tmpSegm.SetWidth( edge->GetWidth() );
                tmpSegm.m_Param = edge->GetAngle();
                tmpSegm.SetNet( -1 );

                TraceSegmentPcb( &tmpSegm, HOLE, marge, WRITE_CELL );
                TraceSegmentPcb( &tmpSegm, VIA_IMPOSSIBLE, via_marge, WRITE_OR_CELL );
            }
            break;

            default:
                break;
            }
        }
    }

    // Place board outlines and texts on copper layers:
    for( BOARD_ITEM* item = aPcb->m_Drawings; item; item = item->Next() )
    {
        switch( item->Type() )
        {
        case PCB_LINE_T:
        {
            DRAWSEGMENT* DrawSegm;

            int          type_cell = HOLE;
            DrawSegm = (DRAWSEGMENT*) item;
            tmpSegm.SetLayer( DrawSegm->GetLayer() );

            if( DrawSegm->GetLayer() == EDGE_N )
            {
                tmpSegm.SetLayer( UNDEFINED_LAYER );
                type_cell |= CELL_is_EDGE;
            }

            tmpSegm.SetStart( DrawSegm->GetStart() );
//.........这里部分代码省略.........

void DIALOG_GRAPHIC_ITEM_PROPERTIES::initDlg()
{
    m_StandardButtonsSizerOK->SetDefault();

    // Set unit symbol
    wxStaticText* texts_unit[] =
    {
        m_StartPointXUnit,
        m_StartPointYUnit,
        m_EndPointXUnit,
        m_EndPointYUnit,
        m_ThicknessTextUnit,
        m_DefaulThicknessTextUnit,
        NULL
    };

    for( int ii = 0; ; ii++ )
    {
        if( texts_unit[ii] == NULL )
            break;

        texts_unit[ii]->SetLabel( GetAbbreviatedUnitsLabel() );
    }

    wxString msg;

    // Change texts according to the segment shape:
    switch( m_item->GetShape() )
    {
    case S_CIRCLE:
        SetTitle( _( "Circle Properties" ) );
        m_StartPointXLabel->SetLabel( _( "Center X" ) );
        m_StartPointYLabel->SetLabel( _( "Center Y" ) );
        m_EndPointXLabel->SetLabel( _( "Point X" ) );
        m_EndPointYLabel->SetLabel( _( "Point Y" ) );
        m_Angle_Text->Show( false );
        m_Angle_Ctrl->Show( false );
        m_AngleUnit->Show( false );
        break;

    case S_ARC:
        SetTitle( _( "Arc Properties" ) );
        m_StartPointXLabel->SetLabel( _( "Center X" ) );
        m_StartPointYLabel->SetLabel( _( "Center Y" ) );
        m_EndPointXLabel->SetLabel( _( "Start Point X" ) );
        m_EndPointYLabel->SetLabel( _( "Start Point Y" ) );

        // Here the angle is a double, but the UI is still working with integers.
        msg << int( m_item->GetAngle() );
        m_Angle_Ctrl->SetValue( msg );
        break;

    case S_SEGMENT:
        SetTitle( _( "Line Segment Properties" ) );

        // Fall through.
    default:
        m_Angle_Text->Show( false );
        m_Angle_Ctrl->Show( false );
        m_AngleUnit->Show( false );
        break;
    }

    PutValueInLocalUnits( *m_Center_StartXCtrl, m_item->GetStart().x );

    PutValueInLocalUnits( *m_Center_StartYCtrl, m_item->GetStart().y );

    PutValueInLocalUnits( *m_EndX_Radius_Ctrl, m_item->GetEnd().x );

    PutValueInLocalUnits( *m_EndY_Ctrl, m_item->GetEnd().y );

    PutValueInLocalUnits( *m_ThicknessCtrl, m_item->GetWidth() );

    int thickness;

    if( m_item->GetLayer() == Edge_Cuts )
        thickness = m_brdSettings.m_EdgeSegmentWidth;
    else
        thickness = m_brdSettings.m_DrawSegmentWidth;

    PutValueInLocalUnits( *m_DefaultThicknessCtrl, thickness );

    // Configure the layers list selector
    m_LayerSelectionCtrl->SetLayersHotkeys( false );
    m_LayerSelectionCtrl->SetLayerSet( LSET::AllCuMask() );
    m_LayerSelectionCtrl->SetBoardFrame( m_parent );
    m_LayerSelectionCtrl->Resync();

    if( m_LayerSelectionCtrl->SetLayerSelection( m_item->GetLayer() ) < 0 )
    {
        wxMessageBox( _( "This item was on an unknown layer.\n"
                         "It has been moved to the drawings layer. Please fix it." ) );
        m_LayerSelectionCtrl->SetLayerSelection( Dwgs_User );
    }
}

void GRID_HELPER::computeAnchors( BOARD_ITEM* aItem, const VECTOR2I& aRefPos )
{
    VECTOR2I origin;

    switch( aItem->Type() )
    {
        case PCB_MODULE_T:
        {
            MODULE* mod = static_cast<MODULE*>( aItem );
            addAnchor( mod->GetPosition(), ORIGIN | SNAPPABLE, mod );

            for( D_PAD* pad = mod->Pads(); pad; pad = pad->Next() )
                addAnchor( pad->GetPosition(), CORNER | SNAPPABLE, pad );

            break;
        }


        case PCB_PAD_T:
        {
            D_PAD* pad = static_cast<D_PAD*>( aItem );
            addAnchor( pad->GetPosition(), CORNER | SNAPPABLE, pad );

            break;
        }

        case PCB_MODULE_EDGE_T:
        case PCB_LINE_T:
        {
            DRAWSEGMENT* dseg = static_cast<DRAWSEGMENT*>( aItem );
            VECTOR2I start = dseg->GetStart();
            VECTOR2I end = dseg->GetEnd();
            //LAYER_ID layer = dseg->GetLayer();

            switch( dseg->GetShape() )
            {
                case S_CIRCLE:
                {
                    int r = ( start - end ).EuclideanNorm();

                    addAnchor( start, ORIGIN | SNAPPABLE, dseg );
                    addAnchor( start + VECTOR2I( -r, 0 ), OUTLINE | SNAPPABLE, dseg );
                    addAnchor( start + VECTOR2I( r, 0 ), OUTLINE | SNAPPABLE, dseg );
                    addAnchor( start + VECTOR2I( 0, -r ), OUTLINE | SNAPPABLE, dseg );
                    addAnchor( start + VECTOR2I( 0, r ), OUTLINE | SNAPPABLE, dseg );
                    break;
                }

                case S_ARC:
                {
                    origin = dseg->GetCenter();
                    addAnchor( dseg->GetArcStart(), CORNER | SNAPPABLE, dseg );
                    addAnchor( dseg->GetArcEnd(), CORNER | SNAPPABLE, dseg );
                    addAnchor( origin, ORIGIN | SNAPPABLE, dseg );
                    break;
                }

                case S_SEGMENT:
                {
                    origin.x = start.x + ( start.x - end.x ) / 2;
                    origin.y = start.y + ( start.y - end.y ) / 2;
                    addAnchor( start, CORNER | SNAPPABLE, dseg );
                    addAnchor( end, CORNER | SNAPPABLE, dseg );
                    addAnchor( origin, ORIGIN, dseg );
                    break;
                }

                default:
                {
                    origin = dseg->GetStart();
                    addAnchor( origin, ORIGIN | SNAPPABLE, dseg );
                    break;
                }
            }
            break;
        }

        case PCB_TRACE_T:
        {
            TRACK* track = static_cast<TRACK*>( aItem );
            VECTOR2I start = track->GetStart();
            VECTOR2I end = track->GetEnd();
            origin.x = start.x + ( start.x - end.x ) / 2;
            origin.y = start.y + ( start.y - end.y ) / 2;
            addAnchor( start, CORNER | SNAPPABLE, track );
            addAnchor( end, CORNER | SNAPPABLE, track );
            addAnchor( origin, ORIGIN, track);
            break;
        }

        case PCB_VIA_T:
            addAnchor( aItem->GetPosition(), CORNER | SNAPPABLE, aItem );
            break;

        case PCB_ZONE_AREA_T:
        {
            const CPolyLine* outline = static_cast<const ZONE_CONTAINER*>( aItem )->Outline();
            int cornersCount = outline->GetCornersCount();

            SHAPE_LINE_CHAIN lc;
//.........这里部分代码省略.........

/**
 * Function ConvertOutlineToPolygon
 * build a polygon (with holes) from a DRAWSEGMENT list, which is expected to be
 * a outline, therefore a closed main outline with perhaps closed inner outlines.
 * These closed inner outlines are considered as holes in the main outline
 * @param aSegList the initial list of drawsegments (only lines, circles and arcs).
 * @param aPolygons will contain the complex polygon.
 * @param aTolerance is the max distance between points that is still accepted as connected (internal units)
 * @param aErrorText is a wxString to return error message.
 * @param aErrorLocation is the optional position of the error in the outline
 */
bool ConvertOutlineToPolygon( std::vector<DRAWSEGMENT*>& aSegList, SHAPE_POLY_SET& aPolygons,
                              wxString* aErrorText, unsigned int aTolerance, wxPoint* aErrorLocation )
{
    if( aSegList.size() == 0 )
        return true;

    wxString msg;

    // Make a working copy of aSegList, because the list is modified during calculations
    std::vector< DRAWSEGMENT* > segList = aSegList;

    DRAWSEGMENT* graphic;
    wxPoint prevPt;

    // Find edge point with minimum x, this should be in the outer polygon
    // which will define the perimeter Edge.Cuts polygon.
    wxPoint xmin    = wxPoint( INT_MAX, 0 );
    int     xmini   = 0;

    for( size_t i = 0; i < segList.size(); i++ )
    {
        graphic = (DRAWSEGMENT*) segList[i];

        switch( graphic->GetShape() )
        {
        case S_SEGMENT:
            {
                if( graphic->GetStart().x < xmin.x )
                {
                    xmin    = graphic->GetStart();
                    xmini   = i;
                }

                if( graphic->GetEnd().x < xmin.x )
                {
                    xmin    = graphic->GetEnd();
                    xmini   = i;
                }
            }
            break;

        case S_ARC:
            // Freerouter does not yet understand arcs, so approximate
            // an arc with a series of short lines and put those
            // line segments into the !same! PATH.
            {
                wxPoint  pstart = graphic->GetArcStart();
                wxPoint  center = graphic->GetCenter();
                double   angle  = -graphic->GetAngle();
                double   radius = graphic->GetRadius();
                int      steps  = GetArcToSegmentCount( radius, ARC_LOW_DEF, angle / 10.0 );
                wxPoint  pt;

                for( int step = 1; step<=steps; ++step )
                {
                    double rotation = ( angle * step ) / steps;

                    pt = pstart;

                    RotatePoint( &pt, center, rotation );

                    if( pt.x < xmin.x )
                    {
                        xmin  = pt;
                        xmini = i;
                    }
                }
            }
            break;

        case S_CIRCLE:
            {
                wxPoint pt = graphic->GetCenter();

                // pt has minimum x point
                pt.x -= graphic->GetRadius();

                // when the radius <= 0, this is a mal-formed circle. Skip it
                if( graphic->GetRadius() > 0 && pt.x < xmin.x )
                {
                    xmin  = pt;
                    xmini = i;
                }
            }
            break;

        case S_CURVE:
            {
                graphic->RebuildBezierToSegmentsPointsList( graphic->GetWidth() );
//.........这里部分代码省略.........

int DRAWING_TOOL::drawZone( bool aKeepout )
{
    ZONE_CONTAINER* zone = NULL;
    DRAWSEGMENT line45;
    DRAWSEGMENT* helperLine = NULL;  // we will need more than one helper line

    // if one day it is possible to draw zones in the footprint editor,
    // then hereby I'm letting you know that this tool does not handle UR_MODEDIT undo yet
    assert( !m_editModules );

    // Add a VIEW_GROUP that serves as a preview for the new item
    KIGFX::VIEW_GROUP preview( m_view );
    m_view->Add( &preview );

    m_toolMgr->RunAction( COMMON_ACTIONS::selectionClear, true );
    m_controls->ShowCursor( true );
    m_controls->SetSnapping( true );

    Activate();

    VECTOR2I origin;
    int numPoints = 0;
    bool direction45 = false;       // 45 degrees only mode

    // Main loop: keep receiving events
    while( OPT_TOOL_EVENT evt = Wait() )
    {
        bool updatePreview = false;            // should preview be updated
        VECTOR2I cursorPos = m_controls->GetCursorPosition();

        // Enable 45 degrees lines only mode by holding control
        if( direction45 != ( evt->Modifier( MD_CTRL ) && numPoints > 0 ) )
        {
            direction45 = evt->Modifier( MD_CTRL );

            if( direction45 )
            {
                preview.Add( &line45 );
                make45DegLine( helperLine, &line45 );
            }
            else
            {
                preview.Remove( &line45 );
                helperLine->SetEnd( wxPoint( cursorPos.x, cursorPos.y ) );
            }

            updatePreview = true;
        }

        if( evt->IsCancel() || evt->IsActivate() )
        {
            if( numPoints > 0 )         // cancel the current zone
            {
                delete zone;
                zone = NULL;
                m_controls->SetAutoPan( false );
                m_controls->CaptureCursor( false );

                if( direction45 )
                {
                    preview.Remove( &line45 );
                    direction45 = false;
                }

                preview.FreeItems();
                updatePreview = true;

                numPoints = 0;
            }
            else                        // there is no zone currently drawn - just stop the tool
                break;

            if( evt->IsActivate() )  // now finish unconditionally
                break;
        }

        else if( evt->IsClick( BUT_LEFT ) || evt->IsDblClick( BUT_LEFT ) )
        {
            // Check if it is double click / closing line (so we have to finish the zone)
            if( evt->IsDblClick( BUT_LEFT ) || ( numPoints > 0 && cursorPos == origin ) )
            {
                if( numPoints > 2 )     // valid zone consists of more than 2 points
                {
                    assert( zone->GetNumCorners() > 2 );

                    // Finish the zone
                    if( direction45 )
                        zone->AppendCorner( cursorPos == origin ? line45.GetStart() : line45.GetEnd() );

                    zone->Outline()->CloseLastContour();
                    zone->Outline()->RemoveNullSegments();

                    m_board->Add( zone );
                    m_view->Add( zone );

                    if( !aKeepout )
                        static_cast<PCB_EDIT_FRAME*>( m_frame )->Fill_Zone( zone );

                    zone->ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
                    m_board->GetRatsnest()->Update( zone );
//.........这里部分代码省略.........