pad.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2018 Jean-Pierre Charras, jp.charras at wanadoo.fr
 * Copyright (C) 1992-2024 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
 */
 
#ifndef PAD_H
#define PAD_H
 
#include <mutex>
#include <array>
#include <zones.h>
#include <board_connected_item.h>
#include <geometry/shape_poly_set.h>
#include <geometry/shape_compound.h>
#include <lset.h>
#include <padstack.h>
#include <geometry/eda_angle.h>
#include <geometry/geometry_utils.h>
#include <core/arraydim.h>
 
class PCB_SHAPE;
class SHAPE;
class SHAPE_SEGMENT;
 
class LINE_READER;
class EDA_3D_CANVAS;
class FOOTPRINT;
 
namespace KIGFX
{
 class VIEW;
}
 
class PAD : public BOARD_CONNECTED_ITEM
{
public:
 PAD( FOOTPRINT* parent );
 
 // Copy constructor & operator= are needed because the list of basic shapes
 // must be duplicated in copy.
 PAD( const PAD& aPad );
 PAD& operator=( const PAD &aOther );
 
 void Serialize( google::protobuf::Any &aContainer ) const override;
 bool Deserialize( const google::protobuf::Any &aContainer ) override;
 
 /*
 * Default layers used for pads, according to the pad type.
 *
 * This is default values only, they can be changed for a given pad.
 */
 static LSET PTHMask(); 
 static LSET SMDMask(); 
 static LSET ConnSMDMask(); 
 static LSET UnplatedHoleMask(); 
 static LSET ApertureMask(); 
 
 static inline bool ClassOf( const EDA_ITEM* aItem )
 {
 return aItem && PCB_PAD_T == aItem->Type();
 }
 
 bool IsType( const std::vector<KICAD_T>& aScanTypes ) const override
 {
 if( BOARD_CONNECTED_ITEM::IsType( aScanTypes ) )
 return true;
 
 for( KICAD_T scanType : aScanTypes )
 {
 if( HasHole() )
 {
 if( scanType == PCB_LOCATE_HOLE_T )
 return true;
 else if( scanType == PCB_LOCATE_PTH_T && m_attribute != PAD_ATTRIB::NPTH )
 return true;
 else if( scanType == PCB_LOCATE_NPTH_T && m_attribute == PAD_ATTRIB::NPTH )
 return true;
 }
 }
 
 return false;
 }
 
 bool HasHole() const override
 {
 return GetDrillSizeX() > 0 && GetDrillSizeY() > 0;
 }
 
 bool HasDrilledHole() const override
 {
 return HasHole() && GetDrillSizeX() == GetDrillSizeY();
 }
 
 bool IsLocked() const override;
 
 void ImportSettingsFrom( const PAD& aMasterPad );
 
 bool IsFlipped() const;
 
 void SetNumber( const wxString& aNumber ) { m_number = aNumber; }
 const wxString& GetNumber() const { return m_number; }
 
 bool CanHaveNumber() const;
 
 void SetPinFunction( const wxString& aName ) { m_pinFunction = aName; }
 const wxString& GetPinFunction() const { return m_pinFunction; }
 
 void SetPinType( const wxString& aType ) { m_pinType = aType; }
 const wxString& GetPinType() const { return m_pinType; }
 
 bool SameLogicalPadAs( const PAD* aOther ) const
 {
 // hide tricks behind sensible API
 return GetParentFootprint() == aOther->GetParentFootprint()
 && !m_number.IsEmpty() && m_number == aOther->m_number;
 }
 
 bool SharesNetTieGroup( const PAD* aOther ) const;
 
 bool IsNoConnectPad() const;
 
 bool IsFreePad() const;
 
 void SetShape( PAD_SHAPE aShape )
 {
 m_padStack.SetShape( aShape );
 SetDirty();
 }
 
 PAD_SHAPE GetShape() const { return m_padStack.Shape(); }
 
 void SetPosition( const VECTOR2I& aPos ) override
 {
 m_pos = aPos;
 SetDirty();
 }
 
 VECTOR2I GetPosition() const override { return m_pos; }
 
 PAD_SHAPE GetAnchorPadShape() const
 {
 return m_padStack.AnchorShape();
 }
 
 PADSTACK::CUSTOM_SHAPE_ZONE_MODE GetCustomShapeInZoneOpt() const
 {
 return m_padStack.CustomShapeInZoneMode();
 }
 
 void SetCustomShapeInZoneOpt( PADSTACK::CUSTOM_SHAPE_ZONE_MODE aOption )
 {
 m_padStack.SetCustomShapeInZoneMode( aOption );
 }
 
 void SetAnchorPadShape( PAD_SHAPE aShape )
 {
 m_padStack.SetAnchorShape( aShape == PAD_SHAPE::RECTANGLE
 ? PAD_SHAPE::RECTANGLE
 : PAD_SHAPE::CIRCLE );
 SetDirty();
 }
 
 bool IsOnCopperLayer() const override;
 
 void SetY( int y ) { m_pos.y = y; SetDirty(); }
 void SetX( int x ) { m_pos.x = x; SetDirty(); }
 
 void SetSize( const VECTOR2I& aSize )
 {
 m_padStack.Size() = aSize;
 SetDirty();
 }
 const VECTOR2I& GetSize() const { return m_padStack.Size(); }
 
 void SetSizeX( const int aX ) { if( aX > 0 ) { m_padStack.Size().x = aX; SetDirty(); } }
 int GetSizeX() const { return m_padStack.Size().x; }
 void SetSizeY( const int aY ) { if( aY > 0 ) { m_padStack.Size().y = aY; SetDirty(); } }
 int GetSizeY() const { return m_padStack.Size().y; }
 
 void SetDelta( const VECTOR2I& aSize ) { m_padStack.TrapezoidDeltaSize() = aSize; SetDirty(); }
 const VECTOR2I& GetDelta() const { return m_padStack.TrapezoidDeltaSize(); }
 
 void SetDrillSize( const VECTOR2I& aSize ) { m_padStack.Drill().size = aSize; SetDirty(); }
 const VECTOR2I& GetDrillSize() const { return m_padStack.Drill().size; }
 void SetDrillSizeX( const int aX ) { m_padStack.Drill().size.x = aX; SetDirty(); }
 int GetDrillSizeX() const { return m_padStack.Drill().size.x; }
 void SetDrillSizeY( const int aY ) { m_padStack.Drill().size.y = aY; SetDirty(); }
 int GetDrillSizeY() const { return m_padStack.Drill().size.y; }
 
 void SetOffset( const VECTOR2I& aOffset ) { m_padStack.Offset() = aOffset; SetDirty(); }
 const VECTOR2I& GetOffset() const { return m_padStack.Offset(); }
 
 VECTOR2I GetCenter() const override { return GetPosition(); }
 
 const PADSTACK& Padstack() const { return m_padStack; }
 PADSTACK& Padstack() { return m_padStack; }
 void SetPadstack( const PADSTACK& aPadstack ) { m_padStack = aPadstack; }
 
 void AddPrimitivePoly( const SHAPE_POLY_SET& aPoly, int aThickness, bool aFilled );
 void AddPrimitivePoly( const std::vector<VECTOR2I>& aPoly, int aThickness, bool aFilled );
 
 void MergePrimitivesAsPolygon( SHAPE_POLY_SET* aMergedPolygon,
 ERROR_LOC aErrorLoc = ERROR_INSIDE ) const;
 
 void DeletePrimitivesList();
 
 const std::vector<std::shared_ptr<PCB_SHAPE>>& GetPrimitives() const
 {
 return m_padStack.Primitives();
 }
 
 void Flip( const VECTOR2I& VECTOR2I, bool aFlipLeftRight ) override;
 
 void FlipPrimitives( bool aFlipLeftRight );
 
 void ReplacePrimitives( const std::vector<std::shared_ptr<PCB_SHAPE>>& aPrimitivesList );
 
 void AppendPrimitives( const std::vector<std::shared_ptr<PCB_SHAPE>>& aPrimitivesList );
 
 void AddPrimitive( PCB_SHAPE* aPrimitive );
 
 void SetOrientation( const EDA_ANGLE& aAngle );
 void SetFPRelativeOrientation( const EDA_ANGLE& aAngle );
 
 EDA_ANGLE GetOrientation() const { return m_padStack.GetOrientation(); }
 EDA_ANGLE GetFPRelativeOrientation() const;
 
 // For property system
 void SetOrientationDegrees( double aOrientation )
 {
 SetOrientation( EDA_ANGLE( aOrientation, DEGREES_T ) );
 }
 double GetOrientationDegrees() const
 {
 return m_padStack.GetOrientation().AsDegrees();
 }
 
 void SetDrillShape( PAD_DRILL_SHAPE aShape )
 {
 m_padStack.Drill().shape = aShape;
 m_shapesDirty = true;
 }
 PAD_DRILL_SHAPE GetDrillShape() const { return m_padStack.Drill().shape; }
 
 bool IsDirty() const
 {
 return m_shapesDirty || m_polyDirty[ERROR_INSIDE] || m_polyDirty[ERROR_OUTSIDE];
 }
 
 void SetDirty()
 {
 m_shapesDirty = true;
 m_polyDirty[ERROR_INSIDE] = true;
 m_polyDirty[ERROR_OUTSIDE] = true;
 }
 
 void SetLayerSet( LSET aLayers ) override { m_padStack.SetLayerSet( aLayers ); }
 LSET GetLayerSet() const override { return m_padStack.LayerSet(); }
 
 void SetAttribute( PAD_ATTRIB aAttribute );
 PAD_ATTRIB GetAttribute() const { return m_attribute; }
 
 void SetProperty( PAD_PROP aProperty );
 PAD_PROP GetProperty() const { return m_property; }
 
 // We don't currently have an attribute for APERTURE, and adding one will change the file
 // format, so for now just infer a copper-less pad to be an APERTURE pad.
 bool IsAperturePad() const
 {
 return ( m_padStack.LayerSet() & LSET::AllCuMask() ).none();
 }
 
 void SetPadToDieLength( int aLength ) { m_lengthPadToDie = aLength; }
 int GetPadToDieLength() const { return m_lengthPadToDie; }
 
 std::optional<int> GetLocalClearance() const override { return m_padStack.Clearance(); }
 void SetLocalClearance( std::optional<int> aClearance ) { m_padStack.Clearance() = aClearance; }
 
 std::optional<int> GetLocalSolderMaskMargin() const { return m_padStack.SolderMaskMargin(); }
 void SetLocalSolderMaskMargin( std::optional<int> aMargin )
 {
 m_padStack.SolderMaskMargin() = aMargin;
 }
 
 std::optional<int> GetLocalSolderPasteMargin() const { return m_padStack.SolderPasteMargin(); }
 void SetLocalSolderPasteMargin( std::optional<int> aMargin )
 {
 m_padStack.SolderPasteMargin() = aMargin;
 }
 
 std::optional<double> GetLocalSolderPasteMarginRatio() const
 {
 return m_padStack.SolderPasteMarginRatio();
 }
 void SetLocalSolderPasteMarginRatio( std::optional<double> aRatio )
 {
 m_padStack.SolderPasteMarginRatio() = aRatio;
 }
 
 void SetLocalZoneConnection( ZONE_CONNECTION aType ) { m_padStack.ZoneConnection() = aType; }
 ZONE_CONNECTION GetLocalZoneConnection() const
 {
 return m_padStack.ZoneConnection().value_or( ZONE_CONNECTION::INHERITED );
 }
 
 int GetOwnClearance( PCB_LAYER_ID aLayer, wxString* aSource = nullptr ) const override;
 
 void TransformShapeToPolygon( SHAPE_POLY_SET& aBuffer, PCB_LAYER_ID aLayer, int aClearance,
 int aMaxError, ERROR_LOC aErrorLoc = ERROR_INSIDE,
 bool ignoreLineWidth = false ) const override;
 
 bool TransformHoleToPolygon( SHAPE_POLY_SET& aBuffer, int aClearance, int aError,
 ERROR_LOC aErrorLoc = ERROR_INSIDE ) const;
 
 virtual std::shared_ptr<SHAPE>
 GetEffectiveShape( PCB_LAYER_ID aLayer = UNDEFINED_LAYER,
 FLASHING flashPTHPads = FLASHING::DEFAULT ) const override;
 
 const std::shared_ptr<SHAPE_POLY_SET>& GetEffectivePolygon( ERROR_LOC aErrorLoc = ERROR_INSIDE ) const;
 
 std::shared_ptr<SHAPE_SEGMENT> GetEffectiveHoleShape() const override;
 
 int GetBoundingRadius() const;
 
 std::optional<int> GetLocalClearance( wxString* aSource ) const override;
 
 std::optional<int> GetClearanceOverrides( wxString* aSource ) const override;
 
 int GetSolderMaskExpansion() const;
 
 VECTOR2I GetSolderPasteMargin() const;
 
 ZONE_CONNECTION GetZoneConnectionOverrides( wxString* aSource = nullptr ) const;
 
 void SetThermalSpokeWidth( int aWidth ) { m_padStack.ThermalSpokeWidth() = aWidth; }
 int GetThermalSpokeWidth() const { return m_padStack.ThermalSpokeWidth().value_or( 0 ); }
 
 int GetLocalSpokeWidthOverride( wxString* aSource = nullptr ) const;
 
 void SetThermalSpokeAngle( const EDA_ANGLE& aAngle )
 {
 m_padStack.SetThermalSpokeAngle( aAngle );
 }
 EDA_ANGLE GetThermalSpokeAngle() const
 {
 return m_padStack.ThermalSpokeAngle();
 }
 
 // For property system
 void SetThermalSpokeAngleDegrees( double aAngle )
 {
 m_padStack.SetThermalSpokeAngle( EDA_ANGLE( aAngle, DEGREES_T ) );
 }
 double GetThermalSpokeAngleDegrees() const
 {
 return m_padStack.ThermalSpokeAngle().AsDegrees();
 }
 
 void SetThermalGap( int aGap ) { m_padStack.ThermalGap() = aGap; }
 int GetThermalGap() const { return m_padStack.ThermalGap().value_or( 0 ); }
 
 int GetLocalThermalGapOverride( wxString* aSource = nullptr ) const;
 
 void SetRoundRectCornerRadius( double aRadius );
 int GetRoundRectCornerRadius() const;
 
 VECTOR2I ShapePos() const;
 
 void SetRoundRectRadiusRatio( double aRadiusScale );
 double GetRoundRectRadiusRatio() const { return m_padStack.RoundRectRadiusRatio(); }
 
 void SetChamferRectRatio( double aChamferScale );
 double GetChamferRectRatio() const { return m_padStack.ChamferRatio(); }
 
 void SetChamferPositions( int aPositions ) { m_padStack.SetChamferPositions( aPositions ); }
 int GetChamferPositions() const { return m_padStack.ChamferPositions(); }
 
 int GetSubRatsnest() const { return m_subRatsnest; }
 void SetSubRatsnest( int aSubRatsnest ) { m_subRatsnest = aSubRatsnest; }
 
 void SetRemoveUnconnected( bool aSet )
 {
 m_padStack.SetUnconnectedLayerMode( aSet
 ? PADSTACK::UNCONNECTED_LAYER_MODE::REMOVE_ALL
 : PADSTACK::UNCONNECTED_LAYER_MODE::KEEP_ALL );
 }
 
 bool GetRemoveUnconnected() const
 {
 return m_padStack.UnconnectedLayerMode() != PADSTACK::UNCONNECTED_LAYER_MODE::KEEP_ALL;
 }
 
 void SetKeepTopBottom( bool aSet )
 {
 m_padStack.SetUnconnectedLayerMode( aSet
 ? PADSTACK::UNCONNECTED_LAYER_MODE::REMOVE_EXCEPT_START_AND_END
 : PADSTACK::UNCONNECTED_LAYER_MODE::REMOVE_ALL );
 }
 
 bool GetKeepTopBottom() const
 {
 return m_padStack.UnconnectedLayerMode()
 == PADSTACK::UNCONNECTED_LAYER_MODE::REMOVE_EXCEPT_START_AND_END;
 }
 
 void SetUnconnectedLayerMode( PADSTACK::UNCONNECTED_LAYER_MODE aMode )
 {
 m_padStack.SetUnconnectedLayerMode( aMode );
 }
 
 PADSTACK::UNCONNECTED_LAYER_MODE GetUnconnectedLayerMode() const
 {
 return m_padStack.UnconnectedLayerMode();
 }
 
 bool ConditionallyFlashed( PCB_LAYER_ID aLayer ) const
 {
 switch( m_padStack.UnconnectedLayerMode() )
 {
 case PADSTACK::UNCONNECTED_LAYER_MODE::KEEP_ALL:
 return false;
 
 case PADSTACK::UNCONNECTED_LAYER_MODE::REMOVE_ALL:
 return true;
 
 case PADSTACK::UNCONNECTED_LAYER_MODE::REMOVE_EXCEPT_START_AND_END:
 {
 if( aLayer == m_padStack.Drill().start || aLayer == m_padStack.Drill().end )
 return false;
 }
 }
 
 return true;
 }
 
 void GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList ) override;
 
 bool IsOnLayer( PCB_LAYER_ID aLayer ) const override
 {
 return m_padStack.LayerSet().test( aLayer );
 }
 
 bool FlashLayer( int aLayer, bool aOnlyCheckIfPermitted = false ) const;
 
 bool CanFlashLayer( int aLayer )
 {
 return FlashLayer( aLayer, true );
 }
 
 PCB_LAYER_ID GetLayer() const override;
 
 PCB_LAYER_ID GetPrincipalLayer() const;
 
 bool FlashLayer( LSET aLayers ) const;
 
 bool HitTest( const VECTOR2I& aPosition, int aAccuracy = 0 ) const override;
 bool HitTest( const BOX2I& aRect, bool aContained, int aAccuracy = 0 ) const override;
 
 
 std::vector<PCB_SHAPE*> Recombine( bool aIsDryRun, int aMaxError );
 
 wxString GetClass() const override
 {
 return wxT( "PAD" );
 }
 
 const BOX2I GetBoundingBox() const override;
 
 static int Compare( const PAD* aPadRef, const PAD* aPadCmp );
 
 void Move( const VECTOR2I& aMoveVector ) override
 {
 m_pos += aMoveVector;
 SetDirty();
 }
 
 void Rotate( const VECTOR2I& aRotCentre, const EDA_ANGLE& aAngle ) override;
 
 wxString GetItemDescription( UNITS_PROVIDER* aUnitsProvider, bool aFull ) const override;
 
 BITMAPS GetMenuImage() const override;
 
 wxString ShowPadShape() const;
 
 wxString ShowPadAttr() const;
 
 EDA_ITEM* Clone() const override;
 
 PAD* ClonePad() const
 {
 return (PAD*) Clone();
 }
 
 void BuildEffectiveShapes( PCB_LAYER_ID aLayer ) const;
 void BuildEffectivePolygon( ERROR_LOC aErrorLoc = ERROR_INSIDE ) const;
 
 virtual void ViewGetLayers( int aLayers[], int& aCount ) const override;
 
 double ViewGetLOD( int aLayer, KIGFX::VIEW* aView ) const override;
 
 virtual const BOX2I ViewBBox() const override;
 
 void ClearZoneLayerOverrides()
 {
 m_zoneLayerOverrides.fill( ZLO_NONE );
 }
 
 const ZONE_LAYER_OVERRIDE& GetZoneLayerOverride( PCB_LAYER_ID aLayer ) const
 {
 return m_zoneLayerOverrides.at( aLayer );
 }
 
 void SetZoneLayerOverride( PCB_LAYER_ID aLayer, ZONE_LAYER_OVERRIDE aOverride )
 {
 std::unique_lock<std::mutex> cacheLock( m_zoneLayerOverridesMutex );
 m_zoneLayerOverrides.at( aLayer ) = aOverride;
 }
 
 void CheckPad( UNITS_PROVIDER* aUnitsProvider,
 const std::function<void( int aErrorCode,
 const wxString& aMsg )>& aErrorHandler ) const;
 
 double Similarity( const BOARD_ITEM& aOther ) const override;
 
 bool operator==( const PAD& aOther ) const;
 bool operator==( const BOARD_ITEM& aBoardItem ) const override;
 
#if defined(DEBUG)
 virtual void Show( int nestLevel, std::ostream& os ) const override { ShowDummy( os ); }
#endif
 
protected:
 virtual void swapData( BOARD_ITEM* aImage ) override;
 
private:
 void addPadPrimitivesToPolygon( SHAPE_POLY_SET* aMergedPolygon, int aError,
 ERROR_LOC aErrorLoc ) const;
 
private:
 wxString m_number; // Pad name (pin number in schematic)
 wxString m_pinFunction; // Pin name in schematic
 wxString m_pinType; // Pin electrical type in schematic
 
 VECTOR2I m_pos; // Pad Position on board
 
 PADSTACK m_padStack;
 
 // Must be set to true to force rebuild shapes to draw (after geometry change for instance)
 mutable bool m_shapesDirty;
 mutable std::mutex m_shapesBuildingLock;
 mutable BOX2I m_effectiveBoundingBox;
 mutable std::shared_ptr<SHAPE_COMPOUND> m_effectiveShape;
 mutable std::shared_ptr<SHAPE_SEGMENT> m_effectiveHoleShape;
 
 mutable bool m_polyDirty[2];
 mutable std::mutex m_polyBuildingLock;
 mutable std::shared_ptr<SHAPE_POLY_SET> m_effectivePolygon[2];
 mutable int m_effectiveBoundingRadius;
 
 int m_subRatsnest; // Variable used to handle subnet (block) number in
 // ratsnest computations
 
 PAD_ATTRIB m_attribute = PAD_ATTRIB::PTH;
 
 PAD_PROP m_property; // Property in fab files (BGA, FIDUCIAL, TESTPOINT, etc.)
 
 int m_lengthPadToDie; // Length net from pad to die, inside the package
 
 std::mutex m_zoneLayerOverridesMutex;
 std::array<ZONE_LAYER_OVERRIDE, MAX_CU_LAYERS> m_zoneLayerOverrides;
};
 
#endif // PAD_H