C++ DRAWSEGMENT::SetStart方法代码示例

void BRDITEMS_PLOTTER::PlotPcbTarget( PCB_TARGET* aMire )
{
    int     dx1, dx2, dy1, dy2, radius;

    if( !m_layerMask[aMire->GetLayer()] )
        return;

    m_plotter->SetColor( getColor( aMire->GetLayer() ) );

    DRAWSEGMENT  draw;

    draw.SetShape( S_CIRCLE );
    draw.SetWidth( ( GetMode() == LINE ) ? -1 : aMire->GetWidth() );
    draw.SetLayer( aMire->GetLayer() );
    draw.SetStart( aMire->GetPosition() );
    radius = aMire->GetSize() / 3;

    if( aMire->GetShape() )   // shape X
        radius = aMire->GetSize() / 2;

    // Draw the circle
    draw.SetEnd( wxPoint( draw.GetStart().x + radius, draw.GetStart().y ));

    PlotDrawSegment( &draw );

    draw.SetShape( S_SEGMENT );

    radius = aMire->GetSize() / 2;
    dx1    = radius;
    dy1    = 0;
    dx2    = 0;
    dy2    = radius;

    if( aMire->GetShape() )    // Shape X
    {
        dx1 = dy1 = radius;
        dx2 = dx1;
        dy2 = -dy1;
    }

    wxPoint mirePos( aMire->GetPosition() );

    // Draw the X or + shape:
    draw.SetStart( wxPoint( mirePos.x - dx1, mirePos.y - dy1 ));
    draw.SetEnd(   wxPoint( mirePos.x + dx1, mirePos.y + dy1 ));
    PlotDrawSegment( &draw );

    draw.SetStart( wxPoint( mirePos.x - dx2, mirePos.y - dy2 ));
    draw.SetEnd(   wxPoint( mirePos.x + dx2, mirePos.y + dy2 ));
    PlotDrawSegment( &draw );
}

void DXF2BRD_CONVERTER::addLine( const DRW_Line& aData )
{
    DRAWSEGMENT* segm = ( m_useModuleItems ) ?
                        static_cast< DRAWSEGMENT* >( new EDGE_MODULE( NULL ) ) : new DRAWSEGMENT;

    segm->SetLayer( ToLAYER_ID( m_brdLayer ) );
    wxPoint start( mapX( aData.basePoint.x ), mapY( aData.basePoint.y ) );
    segm->SetStart( start );
    wxPoint end( mapX( aData.secPoint.x ), mapY( aData.secPoint.y ) );
    segm->SetEnd( end );
    segm->SetWidth( mapDim( aData.thickness == 0 ? m_defaultThickness : aData.thickness ) );
    m_newItemsList.push_back( segm );
}

/*
 * Import line entities.
 */
void DXF2BRD_CONVERTER::addLine( const DRW_Line& data )
{
    DRAWSEGMENT*    segm = new DRAWSEGMENT( m_brd );

    segm->SetLayer( m_brdLayer );
    wxPoint         start( mapX( data.basePoint.x ), mapY( data.basePoint.y ) );
    segm->SetStart( start );
    wxPoint         end( mapX( data.secPoint.x ), mapY( data.secPoint.y ) );
    segm->SetEnd( end );
    segm->SetWidth( mapDim( data.thickness == 0 ? m_defaultThickness
                            : data.thickness ) );
    appendToBoard( segm );
}

void DXF2BRD_CONVERTER::addPolyline(const DRW_Polyline& aData )
{
    // Currently, Pcbnew does not know polylines, for boards.
    // So we have to convert a polyline to a set of segments.
    // Obviously, the z coordinate is ignored

    wxPoint polyline_startpoint;
    wxPoint segment_startpoint;

    for( unsigned ii = 0; ii < aData.vertlist.size(); ii++ )
    {
        DRW_Vertex* vertex = aData.vertlist[ii];

        if( ii == 0 )
        {
            segment_startpoint.x = mapX( vertex->basePoint.x );
            segment_startpoint.y = mapY( vertex->basePoint.y );
            polyline_startpoint  = segment_startpoint;
            continue;
        }

        DRAWSEGMENT* segm = ( m_useModuleItems ) ?
                            static_cast< DRAWSEGMENT* >( new EDGE_MODULE( NULL ) ) :
                            new DRAWSEGMENT;

        segm->SetLayer( ToLAYER_ID( m_brdLayer ) );
        segm->SetStart( segment_startpoint );
        wxPoint segment_endpoint( mapX( vertex->basePoint.x ), mapY( vertex->basePoint.y ) );
        segm->SetEnd( segment_endpoint );
        segm->SetWidth( mapDim( aData.thickness == 0 ? m_defaultThickness
                                : aData.thickness ) );
        m_newItemsList.push_back( segm );
        segment_startpoint = segment_endpoint;
    }

    // Polyline flags bit 0 indicates closed (1) or open (0) polyline
    if( aData.flags & 1 )
    {
        DRAWSEGMENT* closing_segm = ( m_useModuleItems ) ?
                                    static_cast< DRAWSEGMENT* >( new EDGE_MODULE( NULL ) ) :
                                    new DRAWSEGMENT;

        closing_segm->SetLayer( ToLAYER_ID( m_brdLayer ) );
        closing_segm->SetStart( segment_startpoint );
        closing_segm->SetEnd( polyline_startpoint );
        closing_segm->SetWidth( mapDim( aData.thickness == 0 ? m_defaultThickness
                                : aData.thickness ) );
        m_newItemsList.push_back( closing_segm );
    }
}

void DXF2BRD_CONVERTER::insertLine( const wxRealPoint& aSegStart,
                                    const wxRealPoint& aSegEnd, int aWidth )
{
    DRAWSEGMENT* segm = ( m_useModuleItems ) ?
                        static_cast< DRAWSEGMENT* >( new EDGE_MODULE( NULL ) ) : new DRAWSEGMENT;
    wxPoint segment_startpoint( Millimeter2iu( aSegStart.x ), Millimeter2iu( aSegStart.y ) );
    wxPoint segment_endpoint( Millimeter2iu( aSegEnd.x ), Millimeter2iu( aSegEnd.y ) );

    segm->SetLayer( ToLAYER_ID( m_brdLayer ) );
    segm->SetStart( segment_startpoint );
    segm->SetEnd( segment_endpoint );
    segm->SetWidth( aWidth );

    m_newItemsList.push_back( segm );
    return;
}

void BRDITEMS_PLOTTER::PlotDimension( DIMENSION* aDim )
{
    if( !m_layerMask[aDim->GetLayer()] )
        return;

    DRAWSEGMENT draw;

    draw.SetWidth( (GetMode() == LINE) ? -1 : aDim->GetWidth() );
    draw.SetLayer( aDim->GetLayer() );

    EDA_COLOR_T color = aDim->GetBoard()->GetLayerColor( aDim->GetLayer() );

    // Set plot color (change WHITE to LIGHTGRAY because
    // the white items are not seen on a white paper or screen
    m_plotter->SetColor( color != WHITE ? color : LIGHTGRAY);

    PlotTextePcb( &aDim->Text() );

    draw.SetStart( aDim->m_crossBarO );
    draw.SetEnd( aDim->m_crossBarF );
    PlotDrawSegment( &draw );

    draw.SetStart( aDim->m_featureLineGO);
    draw.SetEnd( aDim->m_featureLineGF );
    PlotDrawSegment( &draw );

    draw.SetStart( aDim->m_featureLineDO );
    draw.SetEnd( aDim->m_featureLineDF );
    PlotDrawSegment( &draw );

    draw.SetStart( aDim->m_crossBarF );
    draw.SetEnd( aDim->m_arrowD1F );
    PlotDrawSegment( &draw );

    draw.SetStart( aDim->m_crossBarF );
    draw.SetEnd( aDim->m_arrowD2F );
    PlotDrawSegment( &draw );

    draw.SetStart( aDim->m_crossBarO );
    draw.SetEnd( aDim->m_arrowG1F );
    PlotDrawSegment( &draw );

    draw.SetStart( aDim->m_crossBarO );
    draw.SetEnd( aDim->m_arrowG2F );
    PlotDrawSegment( &draw );
}

/*
 * 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 );
}

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.........

void POINT_EDITOR::updateItem() const
{
    EDA_ITEM* item = m_editPoints->GetParent();

    switch( item->Type() )
    {
    case PCB_LINE_T:
    case PCB_MODULE_EDGE_T:
    {
        DRAWSEGMENT* segment = static_cast<DRAWSEGMENT*>( item );
        switch( segment->GetShape() )
        {
        case S_SEGMENT:
            if( isModified( m_editPoints->Point( SEG_START ) ) )
                segment->SetStart( wxPoint( m_editPoints->Point( SEG_START ).GetPosition().x,
                                            m_editPoints->Point( SEG_START ).GetPosition().y ) );

            else if( isModified( m_editPoints->Point( SEG_END ) ) )
                segment->SetEnd( wxPoint( m_editPoints->Point( SEG_END ).GetPosition().x,
                                          m_editPoints->Point( SEG_END ).GetPosition().y ) );

            break;

        case S_ARC:
        {
            const VECTOR2I& center = m_editPoints->Point( ARC_CENTER ).GetPosition();
            const VECTOR2I& start = m_editPoints->Point( ARC_START ).GetPosition();
            const VECTOR2I& end = m_editPoints->Point( ARC_END ).GetPosition();

            if( center != segment->GetCenter() )
            {
                wxPoint moveVector = wxPoint( center.x, center.y ) - segment->GetCenter();
                segment->Move( moveVector );

                m_editPoints->Point( ARC_START ).SetPosition( segment->GetArcStart() );
                m_editPoints->Point( ARC_END ).SetPosition( segment->GetArcEnd() );
            }

            else
            {
                segment->SetArcStart( wxPoint( start.x, start.y ) );

                VECTOR2D startLine = start - center;
                VECTOR2I endLine = end - center;
                double newAngle = RAD2DECIDEG( endLine.Angle() - startLine.Angle() );

                // Adjust the new angle to (counter)clockwise setting
                bool clockwise = ( segment->GetAngle() > 0 );

                if( clockwise && newAngle < 0.0 )
                    newAngle += 3600.0;
                else if( !clockwise && newAngle > 0.0 )
                    newAngle -= 3600.0;

                segment->SetAngle( newAngle );
            }

            break;
        }

        case S_CIRCLE:
        {
            const VECTOR2I& center = m_editPoints->Point( CIRC_CENTER ).GetPosition();
            const VECTOR2I& end = m_editPoints->Point( CIRC_END ).GetPosition();

            if( isModified( m_editPoints->Point( CIRC_CENTER ) ) )
            {
                wxPoint moveVector = wxPoint( center.x, center.y ) - segment->GetCenter();
                segment->Move( moveVector );
            }
            else
            {
                segment->SetEnd( wxPoint( end.x, end.y ) );
            }

            break;
        }

        default:        // suppress warnings
            break;
        }

        // Update relative coordinates for module edges
        if( EDGE_MODULE* edge = dyn_cast<EDGE_MODULE*>( item ) )
            edge->SetLocalCoord();

        break;
    }

    case PCB_ZONE_AREA_T:
    {
        ZONE_CONTAINER* zone = static_cast<ZONE_CONTAINER*>( item );
        zone->ClearFilledPolysList();
        CPolyLine* outline = zone->Outline();

        for( int i = 0; i < outline->GetCornersCount(); ++i )
        {
            VECTOR2I point = m_editPoints->Point( i ).GetPosition();
            outline->SetX( i, point.x );
            outline->SetY( i, point.y );
//.........这里部分代码省略.........

bool DRAWING_TOOL::drawArc( DRAWSEGMENT*& aGraphic )
{
    bool clockwise = true;      // drawing direction of the arc
    double startAngle = 0.0f;   // angle of the first arc line
    VECTOR2I cursorPos = m_controls->GetCursorPosition();

    DRAWSEGMENT helperLine;
    helperLine.SetShape( S_SEGMENT );
    helperLine.SetLayer( Dwgs_User );
    helperLine.SetWidth( 1 );

    // 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();

    enum ARC_STEPS
    {
        SET_ORIGIN = 0,
        SET_END,
        SET_ANGLE,
        FINISHED
    };
    int step = SET_ORIGIN;

    // Main loop: keep receiving events
    while( OPT_TOOL_EVENT evt = Wait() )
    {
        cursorPos = m_controls->GetCursorPosition();

        if( evt->IsCancel() || evt->IsActivate() )
        {
            preview.Clear();
            preview.ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
            delete aGraphic;
            aGraphic = NULL;
            break;
        }

        else if( evt->IsClick( BUT_LEFT ) )
        {
            switch( step )
            {
            case SET_ORIGIN:
            {
                LAYER_ID layer = m_frame->GetScreen()->m_Active_Layer;

                if( IsCopperLayer( layer ) )
                {
                    DisplayInfoMessage( NULL, _( "Graphic not allowed on Copper layers" ) );
                    --step;
                }
                else
                {
                    // Init the new item attributes
                    aGraphic->SetShape( S_ARC );
                    aGraphic->SetAngle( 0.0 );
                    aGraphic->SetWidth( getSegmentWidth( layer ) );
                    aGraphic->SetCenter( wxPoint( cursorPos.x, cursorPos.y ) );
                    aGraphic->SetLayer( layer );

                    helperLine.SetStart( aGraphic->GetCenter() );
                    helperLine.SetEnd( aGraphic->GetCenter() );

                    preview.Add( aGraphic );
                    preview.Add( &helperLine );

                    m_controls->SetAutoPan( true );
                    m_controls->CaptureCursor( true );
                }
            }
            break;

            case SET_END:
            {
                if( wxPoint( cursorPos.x, cursorPos.y ) != aGraphic->GetCenter() )
                {
                    VECTOR2D startLine( aGraphic->GetArcStart() - aGraphic->GetCenter() );
                    startAngle = startLine.Angle();
                    aGraphic->SetArcStart( wxPoint( cursorPos.x, cursorPos.y ) );
                }
                else
                    --step;     // one another chance to draw a proper arc
            }
            break;

            case SET_ANGLE:
            {
                if( wxPoint( cursorPos.x, cursorPos.y ) != aGraphic->GetArcStart() && aGraphic->GetAngle() != 0 )
                {
                    assert( aGraphic->GetArcStart() != aGraphic->GetArcEnd() );
                    assert( aGraphic->GetWidth() > 0 );

                    m_view->Add( aGraphic );
                    aGraphic->ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
//.........这里部分代码省略.........

//.........这里部分代码省略.........
                {
                    preview.Remove( &line45 );
                    direction45 = false;
                }

                preview.FreeItems();
                updatePreview = true;
            }
            else
            {
                if( numPoints == 0 )        // it's the first click
                {
                    // Get the current default settings for zones
                    ZONE_SETTINGS zoneInfo = m_frame->GetZoneSettings();
                    zoneInfo.m_CurrentZone_Layer = m_frame->GetScreen()->m_Active_Layer;

                    m_controls->SetAutoPan( true );
                    m_controls->CaptureCursor( true );

                    // Show options dialog
                    ZONE_EDIT_T dialogResult;

                    if( aKeepout )
                        dialogResult = InvokeKeepoutAreaEditor( m_frame, &zoneInfo );
                    else
                    {
                        if( IsCopperLayer( zoneInfo.m_CurrentZone_Layer ) )
                            dialogResult = InvokeCopperZonesEditor( m_frame, &zoneInfo );
                        else
                            dialogResult = InvokeNonCopperZonesEditor( m_frame, NULL, &zoneInfo );
                    }

                    if( dialogResult == ZONE_ABORT )
                    {
                        m_controls->SetAutoPan( false );
                        m_controls->CaptureCursor( false );
                        continue;
                    }

                    // Apply the selected settings
                    zone = new ZONE_CONTAINER( m_board );
                    zoneInfo.ExportSetting( *zone );
                    m_frame->GetGalCanvas()->SetTopLayer( zoneInfo.m_CurrentZone_Layer );

                    // Add the first point
                    zone->Outline()->Start( zoneInfo.m_CurrentZone_Layer,
                                            cursorPos.x, cursorPos.y,
                                            zone->GetHatchStyle() );
                    origin = cursorPos;

                    // Helper line represents the currently drawn line of the zone polygon
                    helperLine = new DRAWSEGMENT;
                    helperLine->SetShape( S_SEGMENT );
                    helperLine->SetWidth( 1 );
                    helperLine->SetLayer( zoneInfo.m_CurrentZone_Layer );
                    helperLine->SetStart( wxPoint( cursorPos.x, cursorPos.y ) );
                    helperLine->SetEnd( wxPoint( cursorPos.x, cursorPos.y ) );
                    line45 = *helperLine;

                    preview.Add( helperLine );
                }
                else
                {
                    zone->AppendCorner( helperLine->GetEnd() );
                    helperLine = new DRAWSEGMENT( *helperLine );
                    helperLine->SetStart( helperLine->GetEnd() );
                    preview.Add( helperLine );
                }

                ++numPoints;
                updatePreview = true;
            }
        }

        else if( evt->IsMotion() && numPoints > 0 )
        {
            // 45 degree lines
            if( direction45 )
                make45DegLine( helperLine, &line45 );
            else
                helperLine->SetEnd( wxPoint( cursorPos.x, cursorPos.y ) );

            // Show a preview of the item
            updatePreview = true;
        }

        if( updatePreview )
            preview.ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
    }

    m_controls->ShowCursor( false );
    m_controls->SetSnapping( false );
    m_controls->SetAutoPan( false );
    m_controls->CaptureCursor( false );
    m_view->Remove( &preview );

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

    return 0;
}