C++ DRAWSEGMENT::SetShape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 );
}

/*
 * Import Arc entities.
 */
void DXF2BRD_CONVERTER::addArc( const DRW_Arc& data )
{
    DRAWSEGMENT* segm = ( m_useModuleItems ) ?
                        static_cast< DRAWSEGMENT* >( new EDGE_MODULE( NULL ) ) : new DRAWSEGMENT;

    segm->SetLayer( ToLAYER_ID( m_brdLayer ) );
    segm->SetShape( S_ARC );

    // Init arc centre:
    wxPoint center( mapX( data.basePoint.x ), mapY( data.basePoint.y ) );
    segm->SetCenter( center );

    // Init arc start point
    double  arcStartx   = data.radious;
    double  arcStarty   = 0;
    double  startangle = data.staangle;
    double  endangle = data.endangle;

    RotatePoint( &arcStartx, &arcStarty, -RAD2DECIDEG( startangle ) );
    wxPoint arcStart( mapX( arcStartx + data.basePoint.x ),
                      mapY( arcStarty + data.basePoint.y ) );
    segm->SetArcStart( arcStart );

    // calculate arc angle (arcs are CCW, and should be < 0 in Pcbnew)
    double angle = -RAD2DECIDEG( endangle - startangle );

    if( angle > 0.0 )
        angle -= 3600.0;

    segm->SetAngle( angle );

    segm->SetWidth( mapDim( data.thickness == 0 ? m_defaultThickness : data.thickness ) );
    m_newItemsList.push_back( segm );
}

/*
 * Import Arc entities.
 */
void DXF2BRD_CONVERTER::addArc( const DRW_Arc& data )
{
    DRAWSEGMENT* segm = new DRAWSEGMENT( m_brd );

    segm->SetLayer( m_brdLayer );
    segm->SetShape( S_ARC );

    // Init arc centre:
    wxPoint center( mapX( data.basePoint.x ), mapY( data.basePoint.y ) );
    segm->SetCenter( center );

    // Init arc start point
    double  arcStartx   = data.radious;
    double  arcStarty   = 0;
    double  startangle = data.staangle;
    double  endangle = data.endangle;

    RotatePoint( &arcStartx, &arcStarty, -RAD2DECIDEG( startangle ) );
    wxPoint arcStart( mapX( arcStartx + data.basePoint.x ),
                      mapY( arcStarty + data.basePoint.y ) );
    segm->SetArcStart( arcStart );

    // calculate arc angle (arcs are CCW, and should be < 0 in Pcbnew)
    double angle = -RAD2DECIDEG( endangle - startangle );

    if( angle > 0.0 )
        angle -= 3600.0;

    segm->SetAngle( angle );

    segm->SetWidth( mapDim( data.thickness == 0 ? m_defaultThickness
                            : data.thickness ) );
    appendToBoard( segm );
}

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;
}

void DXF2BRD_CONVERTER::insertArc( const wxRealPoint& aSegStart, const wxRealPoint& aSegEnd,
                                   double aBulge, 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 ) );

    // ensure aBulge represents an angle from +/- ( 0 .. approx 359.8 deg )
    if( aBulge < -2000.0 )
        aBulge = -2000.0;
    else if( aBulge > 2000.0 )
        aBulge = 2000.0;

    double ang = 4.0 * atan( aBulge );

    // reflect the Y values to put everything in a RHCS
    wxRealPoint sp( aSegStart.x, -aSegStart.y );
    wxRealPoint ep( aSegEnd.x, -aSegEnd.y );
    // angle from end->start
    double offAng = atan2( ep.y - sp.y, ep.x - sp.x );
    // length of subtended segment = 1/2 distance between the 2 points
    double d = 0.5 * sqrt( (sp.x - ep.x) * (sp.x - ep.x) + (sp.y - ep.y) * (sp.y - ep.y) );
    // midpoint of the subtended segment
    double xm   = ( sp.x + ep.x ) * 0.5;
    double ym   = ( sp.y + ep.y ) * 0.5;
    double radius = d / sin( ang * 0.5 );

    if( radius < 0.0 )
        radius = -radius;

    // calculate the height of the triangle with base d and hypotenuse r
    double dh2 = radius * radius - d * d;

    // this should only ever happen due to rounding errors when r == d
    if( dh2 < 0.0 )
        dh2 = 0.0;

    double h = sqrt( dh2 );

    if( ang < 0.0 )
        offAng -= M_PI_2;
    else
        offAng += M_PI_2;

    // for angles greater than 180 deg we need to flip the
    // direction in which the arc center is found relative
    // to the midpoint of the subtended segment.
    if( ang < -M_PI )
        offAng += M_PI;
    else if( ang > M_PI )
        offAng -= M_PI;

    // center point
    double cx = h * cos( offAng ) + xm;
    double cy = h * sin( offAng ) + ym;

    segm->SetLayer( ToLAYER_ID( m_brdLayer ) );
    segm->SetShape( S_ARC );
    segm->SetCenter( wxPoint( Millimeter2iu( cx ), Millimeter2iu( -cy ) ) );

    if( ang < 0.0 )
    {
        segm->SetArcStart( wxPoint( Millimeter2iu( ep.x ), Millimeter2iu( -ep.y ) ) );
        segm->SetAngle( RAD2DECIDEG( ang ) );
    }
    else
    {
        segm->SetArcStart( wxPoint( Millimeter2iu( sp.x ), Millimeter2iu( -sp.y ) ) );
        segm->SetAngle( RAD2DECIDEG( -ang ) );
    }

    segm->SetWidth( aWidth );

    m_newItemsList.push_back( segm );
    return;
}