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) 1992-2021 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
 */

#ifndef PAD_H
#define PAD_H

#include <mutex>
#include <zones.h>
#include <board_connected_item.h>
#include <convert_to_biu.h>
#include <geometry/shape_poly_set.h>
#include <geometry/shape_compound.h>
#include <pad_shapes.h>

class PCB_SHAPE;
class PARAM_CFG;
class SHAPE;
class SHAPE_SEGMENT;

enum CUST_PAD_SHAPE_IN_ZONE
{
 CUST_PAD_SHAPE_IN_ZONE_OUTLINE,
 CUST_PAD_SHAPE_IN_ZONE_CONVEXHULL
};

class LINE_READER;
class EDA_3D_CANVAS;
class FOOTPRINT;
class FP_SHAPE;

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 );

 /*
 * 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 KICAD_T aScanTypes[] ) const override
 {
 if( BOARD_CONNECTED_ITEM::IsType( aScanTypes ) )
 return true;

 for( const KICAD_T* p = aScanTypes; *p != EOT; ++p )
 {
 if( m_drill.x > 0 && m_drill.y > 0 )
 {
 if( *p == PCB_LOCATE_HOLE_T )
 return true;
 else if( *p == PCB_LOCATE_PTH_T && m_attribute != PAD_ATTRIB::NPTH )
 return true;
 else if( *p == PCB_LOCATE_NPTH_T && m_attribute == PAD_ATTRIB::NPTH )
 return true;
 }
 }

 return false;
 }

 FOOTPRINT* GetParent() const;

 wxString GetParentAsString() const { return m_parent->m_Uuid.AsString(); }

 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* other ) const
 {
 // hide tricks behind sensible API
 return GetParent() == other->GetParent() && m_number == other->m_number;
 }

 void SetShape( PAD_SHAPE aShape )
 {
 m_padShape = aShape;
 SetDirty();
 }

 PAD_SHAPE GetShape() const { return m_padShape; }

 void SetPosition( const wxPoint& aPos ) override
 {
 m_pos = aPos;
 SetDirty();
 }

 wxPoint GetPosition() const override { return m_pos; }

 PAD_SHAPE GetAnchorPadShape() const { return m_anchorPadShape; }

 CUST_PAD_SHAPE_IN_ZONE GetCustomShapeInZoneOpt() const
 {
 return m_customShapeClearanceArea;
 }

 void SetCustomShapeInZoneOpt( CUST_PAD_SHAPE_IN_ZONE aOption )
 {
 m_customShapeClearanceArea = aOption;
 }

 void SetAnchorPadShape( PAD_SHAPE aShape )
 {
 m_anchorPadShape = ( aShape == PAD_SHAPE::RECT ) ? PAD_SHAPE::RECT : PAD_SHAPE::CIRCLE;
 SetDirty();
 }

 bool IsOnCopperLayer() const override
 {
 return ( GetLayerSet() & LSET::AllCuMask() ) != 0;
 }

 void SetY( int y ) { m_pos.y = y; SetDirty(); }
 void SetX( int x ) { m_pos.x = x; SetDirty(); }

 void SetPos0( const wxPoint& aPos ) { m_pos0 = aPos; }
 const wxPoint& GetPos0() const { return m_pos0; }

 void SetY0( int y ) { m_pos0.y = y; }
 void SetX0( int x ) { m_pos0.x = x; }

 void SetSize( const wxSize& aSize ) { m_size = aSize; SetDirty(); }
 const wxSize& GetSize() const { return m_size; }
 void SetSizeX( const int aX ) { m_size.x = aX; SetDirty(); }
 const int GetSizeX() const { return m_size.x; }
 void SetSizeY( const int aY ) { m_size.y = aY; SetDirty(); }
 const int GetSizeY() const { return m_size.y; }

 void SetDelta( const wxSize& aSize ) { m_deltaSize = aSize; SetDirty(); }
 const wxSize& GetDelta() const { return m_deltaSize; }

 void SetDrillSize( const wxSize& aSize ) { m_drill = aSize; SetDirty(); }
 const wxSize& GetDrillSize() const { return m_drill; }
 void SetDrillSizeX( const int aX ) { m_drill.x = aX; SetDirty(); }
 const int GetDrillSizeX() const { return m_drill.x; }
 void SetDrillSizeY( const int aY ) { m_drill.y = aY; SetDirty(); }
 const int GetDrillSizeY() const { return m_drill.y; }

 void SetOffset( const wxPoint& aOffset ) { m_offset = aOffset; SetDirty(); }
 const wxPoint& GetOffset() const { return m_offset; }

 wxPoint GetCenter() const override { return GetPosition(); }

 void AddPrimitivePoly( const SHAPE_POLY_SET& aPoly, int aThickness, bool aFilled );
 void AddPrimitivePoly( const std::vector<wxPoint>& aPoly, int aThickness, bool aFilled );
 void AddPrimitiveSegment( const wxPoint& aStart, const wxPoint& aEnd, int aThickness );
 void AddPrimitiveCircle( const wxPoint& aCenter, int aRadius, int aThickness, bool aFilled );
 void AddPrimitiveRect( const wxPoint& aStart, const wxPoint& aEnd, int aThickness,
 bool aFilled );
 void AddPrimitiveArc( const wxPoint& aCenter, const wxPoint& aStart, int aArcAngle,
 int aThickness );
 void AddPrimitiveCurve( const wxPoint& aStart, const wxPoint& aEnd, const wxPoint& aCtrl1,
 const wxPoint& aCtrl2, int aThickness );


 bool GetBestAnchorPosition( VECTOR2I& aPos );

 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_editPrimitives;
 }

 void Flip( const wxPoint& aCentre, 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( double aAngle );

 void SetOrientationDegrees( double aOrientation ) { SetOrientation( aOrientation*10.0 ); }

 double GetOrientation() const { return m_orient; }
 double GetOrientationDegrees() const { return m_orient/10.0; }
 double GetOrientationRadians() const { return m_orient*M_PI/1800; }

 void SetDrillShape( PAD_DRILL_SHAPE_T aShape ) { m_drillShape = aShape; m_shapesDirty = true; }
 PAD_DRILL_SHAPE_T GetDrillShape() const { return m_drillShape; }

 bool IsDirty() const
 {
 return m_shapesDirty || m_polyDirty;
 }

 void SetDirty()
 {
 m_shapesDirty = true;
 m_polyDirty = true;
 }

 void SetLayerSet( LSET aLayers ) override { m_layerMask = aLayers; }
 LSET GetLayerSet() const override { return m_layerMask; }

 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_layerMask & LSET::AllCuMask() ).none();
 }

 void SetPadToDieLength( int aLength ) { m_lengthPadToDie = aLength; }
 int GetPadToDieLength() const { return m_lengthPadToDie; }

 int GetLocalSolderMaskMargin() const { return m_localSolderMaskMargin; }
 void SetLocalSolderMaskMargin( int aMargin ) { m_localSolderMaskMargin = aMargin; }

 int GetLocalClearance( wxString* aSource ) const override;
 int GetLocalClearance() const { return m_localClearance; }
 void SetLocalClearance( int aClearance ) { m_localClearance = aClearance; }

 int GetLocalSolderPasteMargin() const { return m_localSolderPasteMargin; }
 void SetLocalSolderPasteMargin( int aMargin ) { m_localSolderPasteMargin = aMargin; }

 double GetLocalSolderPasteMarginRatio() const { return m_localSolderPasteMarginRatio; }
 void SetLocalSolderPasteMarginRatio( double aRatio ) { m_localSolderPasteMarginRatio = aRatio; }

 void TransformShapeWithClearanceToPolygon( SHAPE_POLY_SET& aCornerBuffer,
 PCB_LAYER_ID aLayer, int aClearanceValue,
 int aMaxError, ERROR_LOC aErrorLoc,
 bool ignoreLineWidth = false ) const override;

 bool TransformHoleWithClearanceToPolygon( SHAPE_POLY_SET& aCornerBuffer, int aInflateValue,
 int aError, ERROR_LOC aErrorLoc ) const;

 // @copydoc BOARD_ITEM::GetEffectiveShape
 virtual std::shared_ptr<SHAPE> GetEffectiveShape( PCB_LAYER_ID aLayer = UNDEFINED_LAYER,
 FLASHING aFlash = FLASHING::DEFAULT ) const override;

 const std::shared_ptr<SHAPE_POLY_SET>& GetEffectivePolygon() const;

 const SHAPE_SEGMENT* GetEffectiveHoleShape() const;

 int GetBoundingRadius() const;

 int GetLocalClearanceOverrides( wxString* aSource ) const override;

 int GetSolderMaskMargin() const;

 wxSize GetSolderPasteMargin() const;

 void SetZoneConnection( ZONE_CONNECTION aType ) { m_zoneConnection = aType; }
 ZONE_CONNECTION GetZoneConnection() const { return m_zoneConnection; }

 ZONE_CONNECTION GetEffectiveZoneConnection( wxString* aSource = nullptr ) const;

 void SetThermalSpokeWidth( int aWidth ) { m_thermalWidth = aWidth; }
 int GetThermalSpokeWidth() const { return m_thermalWidth; }

 int GetEffectiveThermalSpokeWidth( wxString* aSource = nullptr ) const;

 void SetThermalGap( int aGap ) { m_thermalGap = aGap; }
 int GetThermalGap() const { return m_thermalGap; }

 int GetEffectiveThermalGap( wxString* aSource = nullptr ) const;

 void SetRoundRectCornerRadius( double aRadius );
 int GetRoundRectCornerRadius() const;

 wxPoint ShapePos() const;

 void SetRoundRectRadiusRatio( double aRadiusScale );
 double GetRoundRectRadiusRatio() const { return m_roundedCornerScale; }

 void SetChamferRectRatio( double aChamferScale );
 double GetChamferRectRatio() const { return m_chamferScale; }

 void SetChamferPositions( int aPositions ) { m_chamferPositions = aPositions; }
 int GetChamferPositions() const { return m_chamferPositions; }

 int GetSubRatsnest() const { return m_subRatsnest; }
 void SetSubRatsnest( int aSubRatsnest ) { m_subRatsnest = aSubRatsnest; }

 void SetRemoveUnconnected( bool aSet ) { m_removeUnconnectedLayer = aSet; }
 bool GetRemoveUnconnected() const { return m_removeUnconnectedLayer; }

 void SetKeepTopBottom( bool aSet ) { m_keepTopBottomLayer = aSet; }
 bool GetKeepTopBottom() const { return m_keepTopBottomLayer; }

 void GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList ) override;

 bool IsOnLayer( PCB_LAYER_ID aLayer ) const override
 {
 return m_layerMask[aLayer];
 }

 bool FlashLayer( int aLayer ) const;

 bool FlashLayer( LSET aLayers ) const;

 bool HitTest( const wxPoint& 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( "PAD" );
 }

 const EDA_RECT GetBoundingBox() const override;

 void SetDrawCoord();

 //todo: Remove SetLocalCoord along with m_pos
 void SetLocalCoord();

 static int Compare( const PAD* aPadRef, const PAD* aPadCmp );

 void Move( const wxPoint& aMoveVector ) override
 {
 m_pos += aMoveVector;
 SetLocalCoord();
 SetDirty();
 }

 void Rotate( const wxPoint& aRotCentre, double aAngle ) override;

 wxString GetSelectMenuText( EDA_UNITS aUnits ) 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() 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;

 virtual void SwapData( BOARD_ITEM* aImage ) override;

#if defined(DEBUG)
 virtual void Show( int nestLevel, std::ostream& os ) const override { ShowDummy( os ); }
#endif


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

 wxPoint m_pos; // Pad Position on board

 PAD_SHAPE m_padShape; // Shape: PAD_SHAPE::CIRCLE, PAD_SHAPE::RECT,
 // PAD_SHAPE::OVAL, PAD_SHAPE::TRAPEZOID,
 // PAD_SHAPE::ROUNDRECT, PAD_SHAPE_POLYGON
 /*
 * Editing definitions of primitives for custom pad shapes. In local coordinates relative
 * to m_Pos (NOT shapePos) at orient 0.
 */
 std::vector<std::shared_ptr<PCB_SHAPE>> m_editPrimitives;

 // 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 EDA_RECT m_effectiveBoundingBox;
 mutable std::shared_ptr<SHAPE_COMPOUND> m_effectiveShape;
 mutable std::shared_ptr<SHAPE_SEGMENT> m_effectiveHoleShape;

 mutable bool m_polyDirty;
 mutable std::mutex m_polyBuildingLock;
 mutable std::shared_ptr<SHAPE_POLY_SET> m_effectivePolygon;
 mutable int m_effectiveBoundingRadius;

 /*
 * How to build the custom shape in zone, to create the clearance area:
 * CUST_PAD_SHAPE_IN_ZONE_OUTLINE = use pad shape
 * CUST_PAD_SHAPE_IN_ZONE_CONVEXHULL = use the convex hull of the pad shape
 */
 CUST_PAD_SHAPE_IN_ZONE m_customShapeClearanceArea;

 int m_subRatsnest; // Variable used to handle subnet (block) number in
 // ratsnest computations

 wxSize m_drill; // Drill diameter (x == y) or slot dimensions (x != y)
 wxSize m_size; // X and Y size (relative to orient 0)

 PAD_DRILL_SHAPE_T m_drillShape; // PAD_DRILL_SHAPE_CIRCLE, PAD_DRILL_SHAPE_OBLONG

 double m_roundedCornerScale; // Scaling factor of min(width, height) to corner
 // radius, default 0.25
 double m_chamferScale; // Scaling factor of min(width, height) to chamfer
 // size, default 0.25
 int m_chamferPositions; // The positions of the chamfers (at orient 0)

 PAD_SHAPE m_anchorPadShape; // For custom shaped pads: shape of pad anchor,
 // PAD_SHAPE::RECT, PAD_SHAPE::CIRCLE

 /*
 * Most of the time the hole is the center of the shape (m_Offset = 0). But some designers
 * use oblong/rect pads with a hole moved to one of the oblong/rect pad shape ends.
 * In all cases the hole is at the pad position. This offset is from the hole to the center
 * of the pad shape (ie: the copper area around the hole).
 * ShapePos() returns the board shape position according to the offset and the pad rotation.
 */
 wxPoint m_offset;

 LSET m_layerMask; // Bitwise layer: 1 = copper layer, 15 = cmp,
 // 2..14 = internal layers, 16..31 = technical layers

 wxSize m_deltaSize; // Delta for PAD_SHAPE::TRAPEZOID; half the delta squeezes
 // one end and half expands the other. It is only valid
 // to have a single axis be non-0.

 wxPoint m_pos0; // Initial Pad position (i.e. pad position relative to the
 // footprint anchor, orientation 0)

 PAD_ATTRIB m_attribute; // PAD_ATTRIB_NORMAL, PAD_ATTRIB::SMD, PAD_ATTRIB::CONN,
 // PAD_ATTRIB::NPTH
 PAD_PROP m_property; // Property in fab files (BGA, FIDUCIAL, TESTPOINT, etc.)

 double m_orient; // in 1/10 degrees

 int m_lengthPadToDie; // Length net from pad to die, inside the package

 bool m_removeUnconnectedLayer;

 bool m_keepTopBottomLayer;

 /*
 * Pad clearances, margins, etc. exist in a hierarchy. If a given level is specified then
 * the remaining levels are NOT consulted.
 *
 * LEVEL 1: (highest priority) local overrides (pad, footprint, etc.)
 * LEVEL 2: Rules
 * LEVEL 3: Accumulated local settings, netclass settings, & board design settings
 *
 * These are the LEVEL 1 settings for a pad.
 */
 int m_localClearance;
 int m_localSolderMaskMargin; // Local solder mask margin
 int m_localSolderPasteMargin; // Local solder paste margin absolute value
 double m_localSolderPasteMarginRatio; // Local solder mask margin ratio of pad size
 // The final margin is the sum of these 2 values

 ZONE_CONNECTION m_zoneConnection; // No connection, thermal relief, etc.
 int m_thermalWidth; // Thermal spoke width.
 int m_thermalGap;
};

#endif // PAD_H