pns_via.h

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/*
 * KiRouter - a push-and-(sometimes-)shove PCB router
 *
 * Copyright (C) 2013-2014 CERN
 * Copyright (C) 2016-2023 KiCad Developers, see AUTHORS.txt for contributors.
 * Author: Tomasz Wlostowski <[email protected]>
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef __PNS_VIA_H
#define __PNS_VIA_H
 
#include <geometry/shape_line_chain.h>
#include <geometry/shape_circle.h>
#include <math/box2.h>
 
#include "pcb_track.h"
 
#include "pns_item.h"
#include "pns_linked_item.h"
#include "pns_hole.h"
 
namespace PNS {
 
class NODE;
 
// uniquely identifies a VIA within a NODE without using pointers. Used to
// simplify (or complexifiy, depending on the point of view) the pointer management
// in PNS::NODE. Sooner or later I'll have to fix it for good using smart pointers - twl
struct VIA_HANDLE
{
 bool valid = false;
 VECTOR2I pos;
 LAYER_RANGE layers;
 int net = -1;
};
 
class VIA : public LINKED_ITEM
{
public:
 VIA() :
 LINKED_ITEM( VIA_T ),
 m_hole( nullptr )
 {
 m_diameter = 2; // Dummy value
 m_drill = 1; // Dummy value
 m_viaType = VIATYPE::THROUGH;
 m_isFree = false;
 m_isVirtual = false;
 SetHole( HOLE::MakeCircularHole( m_pos, m_drill / 2 ) );
 }
 
 VIA( const VECTOR2I& aPos, const LAYER_RANGE& aLayers, int aDiameter, int aDrill,
 int aNet = -1, VIATYPE aViaType = VIATYPE::THROUGH ) :
 LINKED_ITEM( VIA_T ),
 m_hole( nullptr )
 {
 SetNet( aNet );
 SetLayers( aLayers );
 m_pos = aPos;
 m_diameter = aDiameter;
 m_drill = aDrill;
 m_shape = SHAPE_CIRCLE( aPos, aDiameter / 2 );
 SetHole( HOLE::MakeCircularHole( m_pos, aDrill / 2 ) );
 m_viaType = aViaType;
 m_isFree = false;
 m_isVirtual = false;
 }
 
 VIA( const VIA& aB ) :
 LINKED_ITEM( aB ),
 m_hole( nullptr )
 {
 SetNet( aB.Net() );
 SetLayers( aB.Layers() );
 m_pos = aB.m_pos;
 m_diameter = aB.m_diameter;
 m_shape = SHAPE_CIRCLE( m_pos, m_diameter / 2 );
 m_drill = aB.m_drill;
 SetHole( HOLE::MakeCircularHole( m_pos, m_drill / 2 ) );
 m_marker = aB.m_marker;
 m_rank = aB.m_rank;
 m_viaType = aB.m_viaType;
 m_isFree = aB.m_isFree;
 m_isVirtual = aB.m_isVirtual;
 }
 
 virtual ~VIA()
 {
 if ( m_hole && m_hole->BelongsTo( this ) )
 delete m_hole;
 }
 
 static inline bool ClassOf( const ITEM* aItem )
 {
 return aItem && VIA_T == aItem->Kind();
 }
 
 const VECTOR2I& Pos() const { return m_pos; }
 
 void SetPos( const VECTOR2I& aPos )
 {
 m_pos = aPos;
 m_shape.SetCenter( aPos );
 
 if( m_hole )
 m_hole->SetCenter( aPos );
 }
 
 VIATYPE ViaType() const { return m_viaType; }
 void SetViaType( VIATYPE aViaType ) { m_viaType = aViaType; }
 
 int Diameter() const { return m_diameter; }
 
 void SetDiameter( int aDiameter )
 {
 m_diameter = aDiameter;
 m_shape.SetRadius( m_diameter / 2 );
 }
 
 int Drill() const { return m_drill; }
 
 void SetDrill( int aDrill )
 {
 m_drill = aDrill;
 
 if( m_hole )
 m_hole->SetRadius( m_drill / 2 );
 }
 
 bool IsFree() const { return m_isFree; }
 void SetIsFree( bool aIsFree ) { m_isFree = aIsFree; }
 
 bool PushoutForce( NODE* aNode, const VECTOR2I& aDirection, VECTOR2I& aForce,
 int aCollisionMask = ITEM::ANY_T, int aMaxIterations = 10 );
 
 bool PushoutForce( NODE* aNode, const ITEM* aOther, VECTOR2I& aForce );
 
 const SHAPE* Shape() const override { return &m_shape; }
 
 VIA* Clone() const override;
 
 const SHAPE_LINE_CHAIN Hull( int aClearance = 0, int aWalkaroundThickness = 0,
 int aLayer = -1 ) const override;
 
 virtual VECTOR2I Anchor( int n ) const override
 {
 return m_pos;
 }
 
 virtual int AnchorCount() const override
 {
 return 1;
 }
 
 OPT_BOX2I ChangedArea( const VIA* aOther ) const;
 
 const VIA_HANDLE MakeHandle() const;
 
 virtual void SetHole( HOLE* aHole ) override
 {
 if( m_hole && m_hole->BelongsTo( this ) )
 delete m_hole;
 
 m_hole = aHole;
 m_hole->SetParentPadVia( this );
 m_hole->SetOwner( this );
 m_hole->SetLayers( m_layers ); // fixme: backdrill vias can have hole layer set different
 // than copper layer set
 }
 
 virtual bool HasHole() const override { return true; }
 virtual HOLE *Hole() const override { return m_hole; }
 
 virtual const std::string Format() const override;
 
private:
 int m_diameter;
 int m_drill;
 VECTOR2I m_pos;
 SHAPE_CIRCLE m_shape;
 VIATYPE m_viaType;
 bool m_isFree;
 HOLE* m_hole;
};
 
 
class VVIA : public VIA
{
public:
 VVIA( const VECTOR2I& aPos, int aLayer, int aDiameter, int aNet ) :
 VIA( aPos, LAYER_RANGE( aLayer, aLayer ), aDiameter, aDiameter / 2, aNet )
 {
 m_isVirtual = true;
 //SetHole( SHAPE_CIRCLE( Pos(), 1 ) );
 }
};
 
}
 
#endif