static void MoveDiagonal( SEG& aDiagonal, const SHAPE_LINE_CHAIN& aVertices, int aClearance )
{
int dist;
aVertices.NearestPoint( aDiagonal, dist );
dist -= HULL_MARGIN;
VECTOR2I moveBy = ( aDiagonal.A - aDiagonal.B ).Perpendicular().Resize( dist - aClearance );
aDiagonal.A += moveBy;
aDiagonal.B += moveBy;
}
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;
lc.SetClosed( true );
for( int i = 0; i < cornersCount; ++i )
{
const VECTOR2I p ( outline->GetPos( i ) );
addAnchor( p, CORNER, aItem );
lc.Append( p );
}
addAnchor( lc.NearestPoint( aRefPos ), OUTLINE, aItem );
break;
}
case PCB_MODULE_TEXT_T:
case PCB_TEXT_T:
addAnchor( aItem->GetPosition(), ORIGIN, aItem );
default:
break;
}
}