kicad/pcbnew/pcb_track.h

513 lines
17 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2004 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
* Copyright (C) 1992-2021 KiCad Developers, see AUTHORS.txt for contributors.
*
* 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 2
* 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, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/**
* @brief A single base class (PCB_TRACK) represents both tracks and vias, with subclasses
* for curved tracks (PCB_ARC) and vias (PCB_VIA). All told there are three KICAD_Ts:
* PCB_TRACK_T, PCB_ARC_T, and PCB_VIA_T.
*
* For vias there is a further VIATYPE which indicates THROUGH, BLIND_BURIED, or
* MICROVIA, which are supported by the synthetic KICAD_Ts PCB_LOCATE_STDVIA_T,
* PCB_LOCATE_BBVIA_T, and PCB_LOCATE_UVIA_T.
*/
#ifndef CLASS_TRACK_H
#define CLASS_TRACK_H
#include <board_connected_item.h>
#include <convert_to_biu.h>
class PCB_TRACK;
class PCB_VIA;
class PAD;
class MSG_PANEL_ITEM;
class SHAPE_POLY_SET;
class SHAPE_ARC;
// Flag used in locate routines (from which endpoint work)
enum ENDPOINT_T : int
{
ENDPOINT_START = 0,
ENDPOINT_END = 1
};
// Via types
// Note that this enum must be synchronized to GAL_LAYER_ID
enum class VIATYPE : int
{
THROUGH = 3, /* Always a through hole via */
BLIND_BURIED = 2, /* this via can be on internal layers */
MICROVIA = 1, /* this via which connect from an external layer
* to the near neighbor internal layer */
NOT_DEFINED = 0 /* not yet used */
};
#define UNDEFINED_DRILL_DIAMETER -1 //< Undefined via drill diameter.
// Used for tracks and vias for algorithmic safety, not to enforce constraints
#define GEOMETRY_MIN_SIZE ( int )( 0.001 * IU_PER_MM )
class PCB_TRACK : public BOARD_CONNECTED_ITEM
{
public:
static inline bool ClassOf( const EDA_ITEM* aItem )
{
return aItem && PCB_TRACE_T == aItem->Type();
}
PCB_TRACK( BOARD_ITEM* aParent, KICAD_T idtype = PCB_TRACE_T );
// Do not create a copy constructor. The one generated by the compiler is adequate.
void Move( const VECTOR2I& aMoveVector ) override
{
m_Start += aMoveVector;
m_End += aMoveVector;
}
void Rotate( const VECTOR2I& aRotCentre, const EDA_ANGLE& aAngle ) override;
void Flip( const VECTOR2I& aCentre, bool aFlipLeftRight ) override;
void SetPosition( const VECTOR2I& aPos ) override { m_Start = aPos; }
VECTOR2I GetPosition() const override { return m_Start; }
const VECTOR2I GetFocusPosition() const override { return ( m_Start + m_End ) / 2; }
void SetWidth( int aWidth ) { m_Width = aWidth; }
int GetWidth() const { return m_Width; }
void SetEnd( const VECTOR2I& aEnd ) { m_End = aEnd; }
const VECTOR2I& GetEnd() const { return m_End; }
void SetStart( const VECTOR2I& aStart ) { m_Start = aStart; }
const VECTOR2I& GetStart() const { return m_Start; }
void SetEndX( int aX ) { m_End.x = aX; }
void SetEndY( int aY ) { m_End.y = aY; }
int GetEndX() const { return m_End.x; }
int GetEndY() const { return m_End.y; }
/// Return the selected endpoint (start or end)
const VECTOR2I& GetEndPoint( ENDPOINT_T aEndPoint ) const
{
if( aEndPoint == ENDPOINT_START )
return m_Start;
else
return m_End;
}
// Virtual function
const EDA_RECT GetBoundingBox() const override;
/**
* Function GetLength
* returns the length of the track using the hypotenuse calculation.
* @return double - the length of the track
*/
virtual double GetLength() const;
/**
* Function TransformShapeWithClearanceToPolygon
* Convert the track shape to a closed polygon
* Used in filling zones calculations
* Circles (vias) and arcs (ends of tracks) are approximated by segments
* @param aCornerBuffer = a buffer to store the polygon
* @param aClearanceValue = the clearance around the pad
* @param aError = the maximum deviation from true circle
* @param ignoreLineWidth = used for edge cut items where the line width is only
* for visualization
*/
void TransformShapeWithClearanceToPolygon( SHAPE_POLY_SET& aCornerBuffer,
PCB_LAYER_ID aLayer, int aClearanceValue,
int aError, ERROR_LOC aErrorLoc,
bool ignoreLineWidth = false ) const override;
// @copydoc BOARD_ITEM::GetEffectiveShape
virtual std::shared_ptr<SHAPE> GetEffectiveShape( PCB_LAYER_ID aLayer = UNDEFINED_LAYER ) const override;
/**
* Function IsPointOnEnds
* returns STARTPOINT if point if near (dist = min_dist) start point, ENDPOINT if
* point if near (dist = min_dist) end point,STARTPOINT|ENDPOINT if point if near
* (dist = min_dist) both ends, or 0 if none of the above.
* if min_dist < 0: min_dist = track_width/2
*/
EDA_ITEM_FLAGS IsPointOnEnds( const VECTOR2I& point, int min_dist = 0 ) const;
/**
* Function IsNull
* returns true if segment length is zero.
*/
bool IsNull() const
{
return ( Type() == PCB_VIA_T ) || ( m_Start == m_End );
}
void GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList ) override;
SEARCH_RESULT Visit( INSPECTOR inspector, void* testData, const KICAD_T scanTypes[] ) override;
bool HitTest( const VECTOR2I& aPosition, int aAccuracy = 0 ) const override;
bool HitTest( const EDA_RECT& aRect, bool aContained, int aAccuracy = 0 ) const override;
bool ApproxCollinear( const PCB_TRACK& aTrack );
wxString GetClass() const override
{
return wxT( "PCB_TRACK" );
}
/**
* Function GetLocalClearance
* returns any local clearance overrides set in the "classic" (ie: pre-rule) system.
* @param aSource [out] optionally reports the source as a user-readable string
* @return int - the clearance in internal units.
*/
int GetLocalClearance( wxString* aSource ) const override;
wxString GetSelectMenuText( EDA_UNITS aUnits ) const override;
BITMAPS GetMenuImage() const override;
virtual EDA_ITEM* Clone() const override;
virtual void ViewGetLayers( int aLayers[], int& aCount ) const override;
double ViewGetLOD( int aLayer, KIGFX::VIEW* aView ) const override;
const BOX2I ViewBBox() const override;
virtual void SwapData( BOARD_ITEM* aImage ) override;
/**
* @return true because a track or a via is always on a copper layer.
*/
bool IsOnCopperLayer() const override
{
return true;
}
struct cmp_tracks
{
bool operator()( const PCB_TRACK* aFirst, const PCB_TRACK* aSecond ) const;
};
#if defined (DEBUG)
virtual void Show( int nestLevel, std::ostream& os ) const override { ShowDummy( os ); }
/**
* Function ShowState
* converts a set of state bits to a wxString
* @param stateBits Is an OR-ed together set of bits like IN_EDIT, etc.
*/
static wxString ShowState( int stateBits );
#endif
protected:
void GetMsgPanelInfoBase_Common( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList ) const;
public:
mutable VECTOR2I m_LastNetnamePosition;
protected:
int m_Width; ///< Thickness of track, or via diameter
VECTOR2I m_Start; ///< Line start point
VECTOR2I m_End; ///< Line end point
};
class PCB_ARC : public PCB_TRACK
{
public:
PCB_ARC( BOARD_ITEM* aParent ) :
PCB_TRACK( aParent, PCB_ARC_T )
{
};
PCB_ARC( BOARD_ITEM* aParent, const SHAPE_ARC* aArc );
static inline bool ClassOf( const EDA_ITEM *aItem )
{
return aItem && PCB_ARC_T == aItem->Type();
}
virtual void Move( const VECTOR2I& aMoveVector ) override
{
m_Start += aMoveVector;
m_Mid += aMoveVector;
m_End += aMoveVector;
}
virtual void Rotate( const VECTOR2I& aRotCentre, const EDA_ANGLE& aAngle ) override;
virtual void Flip( const VECTOR2I& aCentre, bool aFlipLeftRight ) override;
void SetMid( const VECTOR2I& aMid ) { m_Mid = aMid; }
const VECTOR2I& GetMid() const { return m_Mid; }
void SetPosition( const VECTOR2I& aPos ) override
{
m_Start = aPos;
}
virtual VECTOR2I GetPosition() const override;
virtual VECTOR2I GetCenter() const override { return GetPosition(); }
double GetRadius() const;
EDA_ANGLE GetAngle() const;
EDA_ANGLE GetArcAngleStart() const;
EDA_ANGLE GetArcAngleEnd() const;
virtual bool HitTest( const VECTOR2I& aPosition, int aAccuracy = 0 ) const override;
virtual bool HitTest( const EDA_RECT& aRect, bool aContained = true, int aAccuracy = 0 ) const override;
wxString GetClass() const override
{
return wxT( "PCB_ARC" );
}
// @copydoc BOARD_ITEM::GetEffectiveShape
virtual std::shared_ptr<SHAPE> GetEffectiveShape( PCB_LAYER_ID aLayer = UNDEFINED_LAYER ) const override;
/**
* Function GetLength
* returns the length of the arc track
* @return double - the length of the track
*/
virtual double GetLength() const override
{
return GetRadius() * std::abs( GetAngle().AsRadians() );
}
EDA_ITEM* Clone() const override;
virtual void SwapData( BOARD_ITEM* aImage ) override;
private:
VECTOR2I m_Mid; ///< Arc mid point, halfway between start and end
};
class PCB_VIA : public PCB_TRACK
{
public:
PCB_VIA( BOARD_ITEM* aParent );
static inline bool ClassOf( const EDA_ITEM *aItem )
{
return aItem && PCB_VIA_T == aItem->Type();
}
// Do not create a copy constructor. The one generated by the compiler is adequate.
bool IsType( const KICAD_T aScanTypes[] ) const override
{
if( BOARD_CONNECTED_ITEM::IsType( aScanTypes ) )
return true;
for( const KICAD_T* p = aScanTypes; *p != EOT; ++p )
{
if( *p == PCB_LOCATE_STDVIA_T && m_viaType == VIATYPE::THROUGH )
return true;
else if( *p == PCB_LOCATE_UVIA_T && m_viaType == VIATYPE::MICROVIA )
return true;
else if( *p == PCB_LOCATE_BBVIA_T && m_viaType == VIATYPE::BLIND_BURIED )
return true;
}
return false;
}
VIATYPE GetViaType() const { return m_viaType; }
void SetViaType( VIATYPE aViaType ) { m_viaType = aViaType; }
bool IsTented() const;
int GetSolderMaskExpansion() const;
bool IsOnLayer( PCB_LAYER_ID aLayer ) const override;
virtual LSET GetLayerSet() const override;
virtual void SetLayerSet( LSET aLayers ) override;
/**
* Function SetLayerPair
* For a via m_layer contains the top layer, the other layer is in m_bottomLayer
* @param aTopLayer = first layer connected by the via
* @param aBottomLayer = last layer connected by the via
*/
void SetLayerPair( PCB_LAYER_ID aTopLayer, PCB_LAYER_ID aBottomLayer );
void SetBottomLayer( PCB_LAYER_ID aLayer );
void SetTopLayer( PCB_LAYER_ID aLayer );
/**
* Function LayerPair
* Return the 2 layers used by the via (the via actually uses
* all layers between these 2 layers)
* @param top_layer = pointer to the first layer (can be null)
* @param bottom_layer = pointer to the last layer (can be null)
*/
void LayerPair( PCB_LAYER_ID* top_layer, PCB_LAYER_ID* bottom_layer ) const;
PCB_LAYER_ID TopLayer() const;
PCB_LAYER_ID BottomLayer() const;
/**
* Function SanitizeLayers
* Check so that the layers are correct dependin on the type of via, and
* so that the top actually is on top.
*/
void SanitizeLayers();
VECTOR2I GetPosition() const override { return m_Start; }
void SetPosition( const VECTOR2I& aPoint ) override { m_Start = aPoint; m_End = aPoint; }
void GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList ) override;
bool HitTest( const VECTOR2I& aPosition, int aAccuracy = 0 ) const override;
bool HitTest( const EDA_RECT& aRect, bool aContained, int aAccuracy = 0 ) const override;
wxString GetClass() const override
{
return wxT( "PCB_VIA" );
}
wxString GetSelectMenuText( EDA_UNITS aUnits ) const override;
BITMAPS GetMenuImage() const override;
EDA_ITEM* Clone() const override;
void ViewGetLayers( int aLayers[], int& aCount ) const override;
double ViewGetLOD( int aLayer, KIGFX::VIEW* aView ) const override;
void Flip( const VECTOR2I& aCentre, bool aFlipLeftRight ) override;
#if defined (DEBUG)
void Show( int nestLevel, std::ostream& os ) const override { ShowDummy( os ); }
#endif
int GetMinAnnulus( PCB_LAYER_ID aLayer, wxString* aSource ) const;
/**
* Sets the unconnected removal property. If true, the copper is removed on zone fill
* or when specifically requested when the via is not connected on a layer.
*/
void SetRemoveUnconnected( bool aSet ) { m_removeUnconnectedLayer = aSet; }
bool GetRemoveUnconnected() const { return m_removeUnconnectedLayer; }
/**
* Sets whether we keep the top and bottom connections even if they are not connected
*/
void SetKeepTopBottom( bool aSet ) { m_keepTopBottomLayer = aSet; }
bool GetKeepTopBottom() const { return m_keepTopBottomLayer; }
/**
* Checks to see whether the via should have a pad on the specific layer
* @param aLayer Layer to check for connectivity
* @return true if connected by pad or track (or optionally zone)
*/
bool FlashLayer( int aLayer ) const;
/**
* Checks to see if the via is present on any of the layers in the set
* @param aLayers set of layers to check the via against
* @return true if connected by pad or track (or optionally zone) on any of the associated layers
*/
bool FlashLayer( LSET aLayers ) const;
/**
* Function SetDrill
* sets the drill value for vias.
* @param aDrill is the new drill diameter
*/
void SetDrill( int aDrill ) { m_drill = aDrill; }
/**
* Function GetDrill
* returns the local drill setting for this PCB_VIA. If you want the calculated value,
* use GetDrillValue() instead.
*/
int GetDrill() const { return m_drill; }
/**
* Function GetDrillValue
* "calculates" the drill value for vias (m-Drill if > 0, or default
* drill value for the board.
* @return real drill_value
*/
int GetDrillValue() const;
/**
* Function SetDrillDefault
* sets the drill value for vias to the default value #UNDEFINED_DRILL_DIAMETER.
*/
void SetDrillDefault() { m_drill = UNDEFINED_DRILL_DIAMETER; }
/**
* Checks if the via is a free via (as opposed to one created on a track by the router).
* Free vias don't have their nets automatically updated by the connectivity algorithm.
* @return true if the via is a free via
*/
bool GetIsFree() const { return m_isFree; }
void SetIsFree( bool aFree = true ) { m_isFree = aFree; }
/**
* Function IsDrillDefault
* @return true if the drill value is default value (-1)
*/
bool IsDrillDefault() const { return m_drill <= 0; }
void SwapData( BOARD_ITEM* aImage ) override;
// @copydoc BOARD_ITEM::GetEffectiveShape
std::shared_ptr<SHAPE> GetEffectiveShape( PCB_LAYER_ID aLayer = UNDEFINED_LAYER ) const override;
protected:
wxString layerMaskDescribe() const override;
private:
/// The bottom layer of the via (the top layer is in m_layer)
PCB_LAYER_ID m_bottomLayer;
VIATYPE m_viaType; ///< through, blind/buried or micro
int m_drill; ///< for vias: via drill (- 1 for default value)
bool m_removeUnconnectedLayer; ///< Remove unconnected copper on a via
bool m_keepTopBottomLayer; ///< Keep the top and bottom annular rings
bool m_isFree; ///< "Free" vias don't get their nets auto-updated
};
#endif // CLASS_TRACK_H