footprint.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2017 Jean-Pierre Charras, jp.charras at wanadoo.fr
 * Copyright (C) 2015 SoftPLC Corporation, Dick Hollenbeck <[email protected]>
 * Copyright (C) 2015 Wayne Stambaugh <[email protected]>
 * Copyright (C) 1992-2023 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
 */
 
#include <core/mirror.h>
#include <confirm.h>
#include <refdes_utils.h>
#include <bitmaps.h>
#include <unordered_set>
#include <string_utils.h>
#include <pcb_edit_frame.h>
#include <board.h>
#include <board_design_settings.h>
#include <macros.h>
#include <pad.h>
#include <pcb_marker.h>
#include <pcb_group.h>
#include <pcb_track.h>
#include <pcb_dimension.h>
#include <pcb_bitmap.h>
#include <pcb_textbox.h>
#include <pcb_field.h>
#include <footprint.h>
#include <zone.h>
#include <view/view.h>
#include <i18n_utility.h>
#include <drc/drc_item.h>
#include <geometry/shape_segment.h>
#include <geometry/shape_simple.h>
#include <convert_shape_list_to_polygon.h>
#include <geometry/convex_hull.h>
#include "convert_basic_shapes_to_polygon.h"
 
 
FOOTPRINT::FOOTPRINT( BOARD* parent ) :
 BOARD_ITEM_CONTAINER((BOARD_ITEM*) parent, PCB_FOOTPRINT_T ),
 m_boundingBoxCacheTimeStamp( 0 ),
 m_visibleBBoxCacheTimeStamp( 0 ),
 m_textExcludedBBoxCacheTimeStamp( 0 ),
 m_hullCacheTimeStamp( 0 ),
 m_initial_comments( nullptr ),
 m_courtyard_cache_timestamp( 0 )
{
 m_attributes = 0;
 m_layer = F_Cu;
 m_orient = ANGLE_0;
 m_fpStatus = FP_PADS_are_LOCKED;
 m_arflag = 0;
 m_link = 0;
 m_lastEditTime = 0;
 m_localClearance = 0;
 m_localSolderMaskMargin = 0;
 m_localSolderPasteMargin = 0;
 m_localSolderPasteMarginRatio = 0.0;
 m_zoneConnection = ZONE_CONNECTION::INHERITED;
 m_fileFormatVersionAtLoad = 0;
 
 // These are the mandatory fields for the editor to work
 for( int i = 0; i < MANDATORY_FIELDS; i++ )
 {
 PCB_FIELD* field = new PCB_FIELD( this, i );
 m_fields.push_back( field );
 
 switch( i )
 {
 case REFERENCE_FIELD:
 field->SetLayer( F_SilkS );
 field->SetVisible( true );
 break;
 case VALUE_FIELD:
 field->SetLayer( F_Fab );
 field->SetVisible( true );
 break;
 default:
 field->SetLayer( F_Fab );
 field->SetVisible( false );
 break;
 }
 }
 
 m_3D_Drawings.clear();
}
 
 
FOOTPRINT::FOOTPRINT( const FOOTPRINT& aFootprint ) :
 BOARD_ITEM_CONTAINER( aFootprint )
{
 m_pos = aFootprint.m_pos;
 m_fpid = aFootprint.m_fpid;
 m_attributes = aFootprint.m_attributes;
 m_fpStatus = aFootprint.m_fpStatus;
 m_orient = aFootprint.m_orient;
 m_lastEditTime = aFootprint.m_lastEditTime;
 m_link = aFootprint.m_link;
 m_path = aFootprint.m_path;
 
 m_cachedBoundingBox = aFootprint.m_cachedBoundingBox;
 m_boundingBoxCacheTimeStamp = aFootprint.m_boundingBoxCacheTimeStamp;
 m_cachedVisibleBBox = aFootprint.m_cachedVisibleBBox;
 m_visibleBBoxCacheTimeStamp = aFootprint.m_visibleBBoxCacheTimeStamp;
 m_cachedTextExcludedBBox = aFootprint.m_cachedTextExcludedBBox;
 m_textExcludedBBoxCacheTimeStamp = aFootprint.m_textExcludedBBoxCacheTimeStamp;
 m_cachedHull = aFootprint.m_cachedHull;
 m_hullCacheTimeStamp = aFootprint.m_hullCacheTimeStamp;
 
 m_localClearance = aFootprint.m_localClearance;
 m_localSolderMaskMargin = aFootprint.m_localSolderMaskMargin;
 m_localSolderPasteMargin = aFootprint.m_localSolderPasteMargin;
 m_localSolderPasteMarginRatio = aFootprint.m_localSolderPasteMarginRatio;
 m_zoneConnection = aFootprint.m_zoneConnection;
 m_netTiePadGroups = aFootprint.m_netTiePadGroups;
 m_fileFormatVersionAtLoad = aFootprint.m_fileFormatVersionAtLoad;
 
 std::map<BOARD_ITEM*, BOARD_ITEM*> ptrMap;
 
 // Copy fields
 for( PCB_FIELD* field : aFootprint.Fields() )
 {
 PCB_FIELD* newField = static_cast<PCB_FIELD*>( field->Clone() );
 ptrMap[field] = newField;
 Add( newField, ADD_MODE::APPEND ); // Append to ensure indexes are identical
 }
 
 // Copy pads
 for( PAD* pad : aFootprint.Pads() )
 {
 PAD* newPad = static_cast<PAD*>( pad->Clone() );
 ptrMap[ pad ] = newPad;
 Add( newPad, ADD_MODE::APPEND ); // Append to ensure indexes are identical
 }
 
 // Copy zones
 for( ZONE* zone : aFootprint.Zones() )
 {
 ZONE* newZone = static_cast<ZONE*>( zone->Clone() );
 ptrMap[ zone ] = newZone;
 Add( newZone, ADD_MODE::APPEND ); // Append to ensure indexes are identical
 
 // Ensure the net info is OK and especially uses the net info list
 // living in the current board
 // Needed when copying a fp from fp editor that has its own board
 // Must be NETINFO_LIST::ORPHANED_ITEM for a keepout that has no net.
 newZone->SetNetCode( -1 );
 }
 
 // Copy drawings
 for( BOARD_ITEM* item : aFootprint.GraphicalItems() )
 {
 BOARD_ITEM* newItem = static_cast<BOARD_ITEM*>( item->Clone() );
 ptrMap[ item ] = newItem;
 Add( newItem, ADD_MODE::APPEND ); // Append to ensure indexes are identical
 }
 
 // Copy groups
 for( PCB_GROUP* group : aFootprint.Groups() )
 {
 PCB_GROUP* newGroup = static_cast<PCB_GROUP*>( group->Clone() );
 ptrMap[ group ] = newGroup;
 Add( newGroup, ADD_MODE::APPEND ); // Append to ensure indexes are identical
 }
 
 // Rebuild groups
 for( PCB_GROUP* group : aFootprint.Groups() )
 {
 PCB_GROUP* newGroup = static_cast<PCB_GROUP*>( ptrMap[ group ] );
 
 newGroup->GetItems().clear();
 
 for( BOARD_ITEM* member : group->GetItems() )
 {
 if( ptrMap.count( member ) )
 newGroup->AddItem( ptrMap[ member ] );
 }
 }
 
 // Copy auxiliary data
 m_3D_Drawings = aFootprint.m_3D_Drawings;
 m_libDescription = aFootprint.m_libDescription;
 m_keywords = aFootprint.m_keywords;
 m_privateLayers = aFootprint.m_privateLayers;
 
 m_arflag = 0;
 
 m_initial_comments = aFootprint.m_initial_comments ?
 new wxArrayString( *aFootprint.m_initial_comments ) : nullptr;
}
 
 
FOOTPRINT::FOOTPRINT( FOOTPRINT&& aFootprint ) :
 BOARD_ITEM_CONTAINER( aFootprint )
{
 *this = std::move( aFootprint );
}
 
 
FOOTPRINT::~FOOTPRINT()
{
 // Untangle group parents before doing any deleting
 for( PCB_GROUP* group : m_groups )
 {
 for( BOARD_ITEM* item : group->GetItems() )
 item->SetParentGroup( nullptr );
 }
 
 // Clean up the owned elements
 delete m_initial_comments;
 
 for( PCB_FIELD* f : m_fields )
 delete f;
 
 m_fields.clear();
 
 for( PAD* p : m_pads )
 delete p;
 
 m_pads.clear();
 
 for( ZONE* zone : m_zones )
 delete zone;
 
 m_zones.clear();
 
 for( PCB_GROUP* group : m_groups )
 delete group;
 
 m_groups.clear();
 
 for( BOARD_ITEM* d : m_drawings )
 delete d;
 
 m_drawings.clear();
 
 if( BOARD* board = GetBoard() )
 board->IncrementTimeStamp();
}
 
 
PCB_FIELD* FOOTPRINT::GetField( MANDATORY_FIELD_T aFieldType )
{
 return m_fields[aFieldType];
}
 
 
const PCB_FIELD* FOOTPRINT::GetField( MANDATORY_FIELD_T aFieldType ) const
{
 return m_fields[aFieldType];
}
 
 
PCB_FIELD* FOOTPRINT::GetFieldById( int aFieldId )
{
 for( PCB_FIELD* field : m_fields )
 {
 if( field->GetId() == aFieldId )
 return field;
 }
 
 return nullptr;
}
 
bool FOOTPRINT::HasFieldByName( const wxString& aFieldName ) const
{
 for( PCB_FIELD* field : m_fields )
 {
 if( field->GetCanonicalName() == aFieldName )
 return true;
 }
 
 return false;
}
 
PCB_FIELD* FOOTPRINT::GetFieldByName( const wxString& aFieldName )
{
 for( PCB_FIELD* field : m_fields )
 {
 if( field->GetName() == aFieldName )
 return field;
 }
 
 return nullptr;
}
 
 
wxString FOOTPRINT::GetFieldText( const wxString& aFieldName ) const
{
 for( const PCB_FIELD* field : m_fields )
 {
 if( aFieldName == field->GetName() || aFieldName == field->GetCanonicalName() )
 return field->GetText();
 }
 
 return wxEmptyString;
}
 
 
void FOOTPRINT::GetFields( std::vector<PCB_FIELD*>& aVector, bool aVisibleOnly )
{
 for( PCB_FIELD* field : m_fields )
 {
 if( aVisibleOnly )
 {
 if( !field->IsVisible() || field->GetText().IsEmpty() )
 continue;
 }
 
 aVector.push_back( field );
 }
}
 
 
PCB_FIELD* FOOTPRINT::AddField( const PCB_FIELD& aField )
{
 int newNdx = m_fields.size();
 
 m_fields.push_back( new PCB_FIELD( aField ) );
 return m_fields[newNdx];
}
 
 
void FOOTPRINT::RemoveField( const wxString& aFieldName )
{
 for( unsigned i = MANDATORY_FIELDS; i < m_fields.size(); ++i )
 {
 if( aFieldName == m_fields[i]->GetName( false ) )
 {
 m_fields.erase( m_fields.begin() + i );
 return;
 }
 }
}
 
 
void FOOTPRINT::ApplyDefaultSettings( const BOARD& board, bool aStyleFields,
 bool aStyleTextAndGraphics )
{
 if( aStyleFields )
 {
 for( PCB_FIELD* field : m_fields )
 field->StyleFromSettings( board.GetDesignSettings() );
 }
 
 if( aStyleTextAndGraphics )
 {
 for( BOARD_ITEM* item : m_drawings )
 item->StyleFromSettings( board.GetDesignSettings() );
 }
}
 
 
bool FOOTPRINT::FixUuids()
{
 // replace null UUIDs if any by a valid uuid
 std::vector< BOARD_ITEM* > item_list;
 
 for( PCB_FIELD* field : m_fields )
 item_list.push_back( field );
 
 for( PAD* pad : m_pads )
 item_list.push_back( pad );
 
 for( BOARD_ITEM* gr_item : m_drawings )
 item_list.push_back( gr_item );
 
 // Note: one cannot fix null UUIDs inside the group, but it should not happen
 // because null uuids can be found in old footprints, therefore without group
 for( PCB_GROUP* group : m_groups )
 item_list.push_back( group );
 
 // Probably notneeded, because old fp do not have zones. But just in case.
 for( ZONE* zone : m_zones )
 item_list.push_back( zone );
 
 bool changed = false;
 
 for( BOARD_ITEM* item : item_list )
 {
 if( item->m_Uuid == niluuid )
 {
 const_cast<KIID&>( item->m_Uuid ) = KIID();
 changed = true;
 }
 }
 
 return changed;
}
 
 
FOOTPRINT& FOOTPRINT::operator=( FOOTPRINT&& aOther )
{
 BOARD_ITEM::operator=( aOther );
 
 m_pos = aOther.m_pos;
 m_fpid = aOther.m_fpid;
 m_attributes = aOther.m_attributes;
 m_fpStatus = aOther.m_fpStatus;
 m_orient = aOther.m_orient;
 m_lastEditTime = aOther.m_lastEditTime;
 m_link = aOther.m_link;
 m_path = aOther.m_path;
 
 m_cachedBoundingBox = aOther.m_cachedBoundingBox;
 m_boundingBoxCacheTimeStamp = aOther.m_boundingBoxCacheTimeStamp;
 m_cachedVisibleBBox = aOther.m_cachedVisibleBBox;
 m_visibleBBoxCacheTimeStamp = aOther.m_visibleBBoxCacheTimeStamp;
 m_cachedTextExcludedBBox = aOther.m_cachedTextExcludedBBox;
 m_textExcludedBBoxCacheTimeStamp = aOther.m_textExcludedBBoxCacheTimeStamp;
 m_cachedHull = aOther.m_cachedHull;
 m_hullCacheTimeStamp = aOther.m_hullCacheTimeStamp;
 
 m_localClearance = aOther.m_localClearance;
 m_localSolderMaskMargin = aOther.m_localSolderMaskMargin;
 m_localSolderPasteMargin = aOther.m_localSolderPasteMargin;
 m_localSolderPasteMarginRatio = aOther.m_localSolderPasteMarginRatio;
 m_zoneConnection = aOther.m_zoneConnection;
 m_netTiePadGroups = aOther.m_netTiePadGroups;
 
 // Move the fields
 m_fields.clear();
 
 for( PCB_FIELD* field : aOther.Fields() )
 Add( field );
 
 // Move the pads
 m_pads.clear();
 
 for( PAD* pad : aOther.Pads() )
 Add( pad );
 
 aOther.Pads().clear();
 
 // Move the zones
 m_zones.clear();
 
 for( ZONE* item : aOther.Zones() )
 {
 Add( item );
 
 // Ensure the net info is OK and especially uses the net info list
 // living in the current board
 // Needed when copying a fp from fp editor that has its own board
 // Must be NETINFO_LIST::ORPHANED_ITEM for a keepout that has no net.
 item->SetNetCode( -1 );
 }
 
 aOther.Zones().clear();
 
 // Move the drawings
 m_drawings.clear();
 
 for( BOARD_ITEM* item : aOther.GraphicalItems() )
 Add( item );
 
 aOther.GraphicalItems().clear();
 
 // Move the groups
 m_groups.clear();
 
 for( PCB_GROUP* group : aOther.Groups() )
 Add( group );
 
 aOther.Groups().clear();
 
 // Copy auxiliary data
 m_3D_Drawings = aOther.m_3D_Drawings;
 m_libDescription = aOther.m_libDescription;
 m_keywords = aOther.m_keywords;
 m_privateLayers = aOther.m_privateLayers;
 
 m_initial_comments = aOther.m_initial_comments;
 
 // Clear the other item's containers since this is a move
 aOther.Fields().clear();
 aOther.Pads().clear();
 aOther.Zones().clear();
 aOther.GraphicalItems().clear();
 aOther.m_initial_comments = nullptr;
 
 return *this;
}
 
 
FOOTPRINT& FOOTPRINT::operator=( const FOOTPRINT& aOther )
{
 BOARD_ITEM::operator=( aOther );
 
 m_pos = aOther.m_pos;
 m_fpid = aOther.m_fpid;
 m_attributes = aOther.m_attributes;
 m_fpStatus = aOther.m_fpStatus;
 m_orient = aOther.m_orient;
 m_lastEditTime = aOther.m_lastEditTime;
 m_link = aOther.m_link;
 m_path = aOther.m_path;
 
 m_cachedBoundingBox = aOther.m_cachedBoundingBox;
 m_boundingBoxCacheTimeStamp = aOther.m_boundingBoxCacheTimeStamp;
 m_cachedVisibleBBox = aOther.m_cachedVisibleBBox;
 m_visibleBBoxCacheTimeStamp = aOther.m_visibleBBoxCacheTimeStamp;
 m_cachedTextExcludedBBox = aOther.m_cachedTextExcludedBBox;
 m_textExcludedBBoxCacheTimeStamp = aOther.m_textExcludedBBoxCacheTimeStamp;
 m_cachedHull = aOther.m_cachedHull;
 m_hullCacheTimeStamp = aOther.m_hullCacheTimeStamp;
 
 m_localClearance = aOther.m_localClearance;
 m_localSolderMaskMargin = aOther.m_localSolderMaskMargin;
 m_localSolderPasteMargin = aOther.m_localSolderPasteMargin;
 m_localSolderPasteMarginRatio = aOther.m_localSolderPasteMarginRatio;
 m_zoneConnection = aOther.m_zoneConnection;
 m_netTiePadGroups = aOther.m_netTiePadGroups;
 
 std::map<BOARD_ITEM*, BOARD_ITEM*> ptrMap;
 
 // Copy fields
 m_fields.clear();
 
 for( PCB_FIELD* field : aOther.GetFields() )
 {
 PCB_FIELD* newField = new PCB_FIELD( *field );
 ptrMap[field] = newField;
 Add( newField );
 }
 
 // Copy pads
 m_pads.clear();
 
 for( PAD* pad : aOther.Pads() )
 {
 PAD* newPad = new PAD( *pad );
 ptrMap[ pad ] = newPad;
 Add( newPad );
 }
 
 // Copy zones
 m_zones.clear();
 
 for( ZONE* zone : aOther.Zones() )
 {
 ZONE* newZone = static_cast<ZONE*>( zone->Clone() );
 ptrMap[ zone ] = newZone;
 Add( newZone );
 
 // Ensure the net info is OK and especially uses the net info list
 // living in the current board
 // Needed when copying a fp from fp editor that has its own board
 // Must be NETINFO_LIST::ORPHANED_ITEM for a keepout that has no net.
 newZone->SetNetCode( -1 );
 }
 
 // Copy drawings
 m_drawings.clear();
 
 for( BOARD_ITEM* item : aOther.GraphicalItems() )
 {
 BOARD_ITEM* newItem = static_cast<BOARD_ITEM*>( item->Clone() );
 ptrMap[ item ] = newItem;
 Add( newItem );
 }
 
 // Copy groups
 m_groups.clear();
 
 for( PCB_GROUP* group : aOther.Groups() )
 {
 PCB_GROUP* newGroup = static_cast<PCB_GROUP*>( group->Clone() );
 newGroup->GetItems().clear();
 
 for( BOARD_ITEM* member : group->GetItems() )
 newGroup->AddItem( ptrMap[ member ] );
 
 Add( newGroup );
 }
 
 // Copy auxiliary data
 m_3D_Drawings = aOther.m_3D_Drawings;
 m_libDescription = aOther.m_libDescription;
 m_keywords = aOther.m_keywords;
 m_privateLayers = aOther.m_privateLayers;
 
 m_initial_comments = aOther.m_initial_comments ?
 new wxArrayString( *aOther.m_initial_comments ) : nullptr;
 
 return *this;
}
 
 
bool FOOTPRINT::IsConflicting() const
{
 return HasFlag( COURTYARD_CONFLICT );
}
 
 
void FOOTPRINT::GetContextualTextVars( wxArrayString* aVars ) const
{
 aVars->push_back( wxT( "REFERENCE" ) );
 aVars->push_back( wxT( "VALUE" ) );
 aVars->push_back( wxT( "LAYER" ) );
 aVars->push_back( wxT( "FOOTPRINT_LIBRARY" ) );
 aVars->push_back( wxT( "FOOTPRINT_NAME" ) );
 aVars->push_back( wxT( "SHORT_NET_NAME(<pad_number>)" ) );
 aVars->push_back( wxT( "NET_NAME(<pad_number>)" ) );
 aVars->push_back( wxT( "NET_CLASS(<pad_number>)" ) );
 aVars->push_back( wxT( "PIN_NAME(<pad_number>)" ) );
}
 
 
bool FOOTPRINT::ResolveTextVar( wxString* token, int aDepth ) const
{
 if( GetBoard() && GetBoard()->GetBoardUse() == BOARD_USE::FPHOLDER )
 return false;
 
 if( token->IsSameAs( wxT( "REFERENCE" ) ) )
 {
 *token = Reference().GetShownText( false, aDepth + 1 );
 return true;
 }
 else if( token->IsSameAs( wxT( "VALUE" ) ) )
 {
 *token = Value().GetShownText( false, aDepth + 1 );
 return true;
 }
 else if( token->IsSameAs( wxT( "LAYER" ) ) )
 {
 *token = GetLayerName();
 return true;
 }
 else if( token->IsSameAs( wxT( "FOOTPRINT_LIBRARY" ) ) )
 {
 *token = m_fpid.GetUniStringLibNickname();
 return true;
 }
 else if( token->IsSameAs( wxT( "FOOTPRINT_NAME" ) ) )
 {
 *token = m_fpid.GetUniStringLibItemName();
 return true;
 }
 else if( token->StartsWith( wxT( "SHORT_NET_NAME(" ) )
 || token->StartsWith( wxT( "NET_NAME(" ) )
 || token->StartsWith( wxT( "NET_CLASS(" ) )
 || token->StartsWith( wxT( "PIN_NAME(" ) ) )
 {
 wxString padNumber = token->AfterFirst( '(' );
 padNumber = padNumber.BeforeLast( ')' );
 
 for( PAD* pad : Pads() )
 {
 if( pad->GetNumber() == padNumber )
 {
 if( token->StartsWith( wxT( "SHORT_NET_NAME" ) ) )
 *token = pad->GetShortNetname();
 else if( token->StartsWith( wxT( "NET_NAME" ) ) )
 *token = pad->GetNetname();
 else if( token->StartsWith( wxT( "NET_CLASS" ) ) )
 *token = pad->GetNetClassName();
 else
 *token = pad->GetPinFunction();
 
 return true;
 }
 }
 }
 else if( HasFieldByName( *token ) )
 {
 *token = GetFieldText( *token );
 return true;
 }
 
 if( GetBoard() && GetBoard()->ResolveTextVar( token, aDepth + 1 ) )
 return true;
 
 return false;
}
 
 
void FOOTPRINT::ClearAllNets()
{
 // Force the ORPHANED dummy net info for all pads.
 // ORPHANED dummy net does not depend on a board
 for( PAD* pad : m_pads )
 pad->SetNetCode( NETINFO_LIST::ORPHANED );
}
 
 
void FOOTPRINT::Add( BOARD_ITEM* aBoardItem, ADD_MODE aMode, bool aSkipConnectivity )
{
 switch( aBoardItem->Type() )
 {
 case PCB_FIELD_T:
 // Always append fields
 m_fields.push_back( static_cast<PCB_FIELD*>( aBoardItem ) );
 
 break;
 
 case PCB_TEXT_T:
 case PCB_DIM_ALIGNED_T:
 case PCB_DIM_LEADER_T:
 case PCB_DIM_CENTER_T:
 case PCB_DIM_RADIAL_T:
 case PCB_DIM_ORTHOGONAL_T:
 case PCB_SHAPE_T:
 case PCB_TEXTBOX_T:
 case PCB_BITMAP_T:
 if( aMode == ADD_MODE::APPEND )
 m_drawings.push_back( aBoardItem );
 else
 m_drawings.push_front( aBoardItem );
 break;
 
 case PCB_PAD_T:
 if( aMode == ADD_MODE::APPEND )
 m_pads.push_back( static_cast<PAD*>( aBoardItem ) );
 else
 m_pads.push_front( static_cast<PAD*>( aBoardItem ) );
 break;
 
 case PCB_ZONE_T:
 if( aMode == ADD_MODE::APPEND )
 m_zones.push_back( static_cast<ZONE*>( aBoardItem ) );
 else
 m_zones.insert( m_zones.begin(), static_cast<ZONE*>( aBoardItem ) );
 break;
 
 case PCB_GROUP_T:
 if( aMode == ADD_MODE::APPEND )
 m_groups.push_back( static_cast<PCB_GROUP*>( aBoardItem ) );
 else
 m_groups.insert( m_groups.begin(), static_cast<PCB_GROUP*>( aBoardItem ) );
 break;
 
 default:
 {
 wxString msg;
 msg.Printf( wxT( "FOOTPRINT::Add() needs work: BOARD_ITEM type (%d) not handled" ),
 aBoardItem->Type() );
 wxFAIL_MSG( msg );
 
 return;
 }
 }
 
 aBoardItem->ClearEditFlags();
 aBoardItem->SetParent( this );
}
 
 
void FOOTPRINT::Remove( BOARD_ITEM* aBoardItem, REMOVE_MODE aMode )
{
 switch( aBoardItem->Type() )
 {
 case PCB_FIELD_T:
 {
 PCB_FIELD* field = static_cast<PCB_FIELD*>( aBoardItem );
 
 // Only user text can be removed this way.
 wxCHECK_RET( !field->IsMandatoryField(),
 wxT( "Please report this bug: Invalid remove operation on required text" ) );
 for( auto it = m_fields.begin(); it != m_fields.end(); ++it )
 {
 if( *it == aBoardItem )
 {
 m_fields.erase( it );
 break;
 }
 }
 }
 break;
 
 case PCB_TEXT_T:
 case PCB_DIM_ALIGNED_T:
 case PCB_DIM_CENTER_T:
 case PCB_DIM_ORTHOGONAL_T:
 case PCB_DIM_RADIAL_T:
 case PCB_DIM_LEADER_T:
 case PCB_SHAPE_T:
 case PCB_TEXTBOX_T:
 case PCB_BITMAP_T:
 for( auto it = m_drawings.begin(); it != m_drawings.end(); ++it )
 {
 if( *it == aBoardItem )
 {
 m_drawings.erase( it );
 break;
 }
 }
 
 break;
 
 case PCB_PAD_T:
 for( auto it = m_pads.begin(); it != m_pads.end(); ++it )
 {
 if( *it == static_cast<PAD*>( aBoardItem ) )
 {
 m_pads.erase( it );
 break;
 }
 }
 
 break;
 
 case PCB_ZONE_T:
 for( auto it = m_zones.begin(); it != m_zones.end(); ++it )
 {
 if( *it == static_cast<ZONE*>( aBoardItem ) )
 {
 m_zones.erase( it );
 break;
 }
 }
 
 break;
 
 case PCB_GROUP_T:
 for( auto it = m_groups.begin(); it != m_groups.end(); ++it )
 {
 if( *it == static_cast<PCB_GROUP*>( aBoardItem ) )
 {
 m_groups.erase( it );
 break;
 }
 }
 
 break;
 
 default:
 {
 wxString msg;
 msg.Printf( wxT( "FOOTPRINT::Remove() needs work: BOARD_ITEM type (%d) not handled" ),
 aBoardItem->Type() );
 wxFAIL_MSG( msg );
 }
 }
 
 aBoardItem->SetFlags( STRUCT_DELETED );
 
 PCB_GROUP* parentGroup = aBoardItem->GetParentGroup();
 
 if( parentGroup && !( parentGroup->GetFlags() & STRUCT_DELETED ) )
 parentGroup->RemoveItem( aBoardItem );
}
 
 
double FOOTPRINT::GetArea( int aPadding ) const
{
 BOX2I bbox = GetBoundingBox( false, false );
 
 double w = std::abs( static_cast<double>( bbox.GetWidth() ) ) + aPadding;
 double h = std::abs( static_cast<double>( bbox.GetHeight() ) ) + aPadding;
 return w * h;
}
 
 
int FOOTPRINT::GetLikelyAttribute() const
{
 int smd_count = 0;
 int tht_count = 0;
 
 for( PAD* pad : m_pads )
 {
 switch( pad->GetProperty() )
 {
 case PAD_PROP::FIDUCIAL_GLBL:
 case PAD_PROP::FIDUCIAL_LOCAL:
 continue;
 
 case PAD_PROP::HEATSINK:
 case PAD_PROP::CASTELLATED:
 continue;
 
 case PAD_PROP::NONE:
 case PAD_PROP::BGA:
 case PAD_PROP::TESTPOINT:
 break;
 }
 
 switch( pad->GetAttribute() )
 {
 case PAD_ATTRIB::PTH:
 tht_count++;
 break;
 
 case PAD_ATTRIB::SMD:
 if( pad->IsOnCopperLayer() )
 smd_count++;
 
 break;
 
 default:
 break;
 }
 }
 
 // Footprints with plated through-hole pads should usually be marked through hole even if they
 // also have SMD because they might not be auto-placed. Exceptions to this might be shielded
 if( tht_count > 0 )
 return FP_THROUGH_HOLE;
 
 if( smd_count > 0 )
 return FP_SMD;
 
 return 0;
}
 
 
wxString FOOTPRINT::GetTypeName() const
{
 if( ( m_attributes & FP_SMD ) == FP_SMD )
 return _( "SMD" );
 
 if( ( m_attributes & FP_THROUGH_HOLE ) == FP_THROUGH_HOLE )
 return _( "Through hole" );
 
 return _( "Other" );
}
 
 
BOX2I FOOTPRINT::GetFpPadsLocalBbox() const
{
 BOX2I bbox;
 
 // We want the bounding box of the footprint pads at rot 0, not flipped
 // Create such a image:
 FOOTPRINT dummy( *this );
 
 dummy.SetPosition( VECTOR2I( 0, 0 ) );
 dummy.SetOrientation( ANGLE_0 );
 
 if( dummy.IsFlipped() )
 dummy.Flip( VECTOR2I( 0, 0 ), false );
 
 for( PAD* pad : dummy.Pads() )
 bbox.Merge( pad->GetBoundingBox() );
 
 // Remove the parent and the group from the dummy footprint before deletion
 dummy.SetParent( nullptr );
 dummy.SetParentGroup( nullptr );
 
 return bbox;
}
 
 
const BOX2I FOOTPRINT::GetBoundingBox() const
{
 return GetBoundingBox( true, true );
}
 
 
const BOX2I FOOTPRINT::GetBoundingBox( bool aIncludeText, bool aIncludeInvisibleText ) const
{
 std::vector<PCB_TEXT*> texts;
 const BOARD* board = GetBoard();
 bool isFPEdit = board && board->IsFootprintHolder();
 
 if( board )
 {
 if( aIncludeText && aIncludeInvisibleText )
 {
 if( m_boundingBoxCacheTimeStamp >= board->GetTimeStamp() )
 return m_cachedBoundingBox;
 }
 else if( aIncludeText )
 {
 if( m_visibleBBoxCacheTimeStamp >= board->GetTimeStamp() )
 return m_cachedVisibleBBox;
 }
 else
 {
 if( m_textExcludedBBoxCacheTimeStamp >= board->GetTimeStamp() )
 return m_cachedTextExcludedBBox;
 }
 }
 
 BOX2I bbox( m_pos );
 bbox.Inflate( pcbIUScale.mmToIU( 0.25 ) ); // Give a min size to the bbox
 
 for( BOARD_ITEM* item : m_drawings )
 {
 if( m_privateLayers.test( item->GetLayer() ) && !isFPEdit )
 continue;
 
 // We want the bitmap bounding box just in the footprint editor
 // so it will start with the correct initial zoom
 if( item->Type() == PCB_BITMAP_T && !isFPEdit )
 continue;
 
 // Handle text separately
 if( item->Type() == PCB_TEXT_T )
 {
 texts.push_back( static_cast<PCB_TEXT*>( item ) );
 continue;
 }
 
 // If we're not including text then drop annotations as well
 if( !aIncludeText )
 {
 if( BaseType( item->Type() ) == PCB_DIMENSION_T )
 continue;
 
 if( item->GetLayer() == Cmts_User || item->GetLayer() == Dwgs_User
 || item->GetLayer() == Eco1_User || item->GetLayer() == Eco2_User )
 {
 continue;
 }
 }
 
 bbox.Merge( item->GetBoundingBox() );
 }
 
 for( PCB_FIELD* field : m_fields )
 texts.push_back( field );
 
 for( PAD* pad : m_pads )
 bbox.Merge( pad->GetBoundingBox() );
 
 for( ZONE* zone : m_zones )
 bbox.Merge( zone->GetBoundingBox() );
 
 bool noDrawItems = ( m_drawings.empty() && m_pads.empty() && m_zones.empty() );
 
 // Groups do not contribute to the rect, only their members
 if( aIncludeText || noDrawItems )
 {
 // Only PCB_TEXT and PCB_FIELD items are independently selectable;
 // PCB_TEXTBOX items go in with other graphic items above.
 for( PCB_TEXT* text : texts )
 {
 if( !isFPEdit && m_privateLayers.test( text->GetLayer() ) )
 continue;
 
 if( aIncludeInvisibleText || text->IsVisible() )
 bbox.Merge( text->GetBoundingBox() );
 }
 
 // This can be further optimized when aIncludeInvisibleText is true, but currently
 // leaving this as is until it's determined there is a noticeable speed hit.
 bool valueLayerIsVisible = true;
 bool refLayerIsVisible = true;
 
 if( board )
 {
 // The first "&&" conditional handles the user turning layers off as well as layers
 // not being present in the current PCB stackup. Values, references, and all
 // footprint text can also be turned off via the GAL meta-layers, so the 2nd and
 // 3rd "&&" conditionals handle that.
 valueLayerIsVisible = board->IsLayerVisible( Value().GetLayer() )
 && board->IsElementVisible( LAYER_FP_VALUES )
 && board->IsElementVisible( LAYER_FP_TEXT );
 
 refLayerIsVisible = board->IsLayerVisible( Reference().GetLayer() )
 && board->IsElementVisible( LAYER_FP_REFERENCES )
 && board->IsElementVisible( LAYER_FP_TEXT );
 }
 
 
 if( ( Value().IsVisible() && valueLayerIsVisible )
 || aIncludeInvisibleText
 || noDrawItems )
 {
 bbox.Merge( Value().GetBoundingBox() );
 }
 
 if( ( Reference().IsVisible() && refLayerIsVisible )
 || aIncludeInvisibleText
 || noDrawItems )
 {
 bbox.Merge( Reference().GetBoundingBox() );
 }
 }
 
 if( board )
 {
 if( ( aIncludeText && aIncludeInvisibleText ) || noDrawItems )
 {
 m_boundingBoxCacheTimeStamp = board->GetTimeStamp();
 m_cachedBoundingBox = bbox;
 }
 else if( aIncludeText )
 {
 m_visibleBBoxCacheTimeStamp = board->GetTimeStamp();
 m_cachedVisibleBBox = bbox;
 }
 else
 {
 m_textExcludedBBoxCacheTimeStamp = board->GetTimeStamp();
 m_cachedTextExcludedBBox = bbox;
 }
 }
 
 return bbox;
}
 
 
const BOX2I FOOTPRINT::GetLayerBoundingBox( LSET aLayers ) const
{
 std::vector<PCB_TEXT*> texts;
 const BOARD* board = GetBoard();
 bool isFPEdit = board && board->IsFootprintHolder();
 
 // Start with an uninitialized bounding box
 BOX2I bbox;
 
 for( BOARD_ITEM* item : m_drawings )
 {
 if( m_privateLayers.test( item->GetLayer() ) && !isFPEdit )
 continue;
 
 if( ( aLayers & item->GetLayerSet() ).none() )
 continue;
 
 // We want the bitmap bounding box just in the footprint editor
 // so it will start with the correct initial zoom
 if( item->Type() == PCB_BITMAP_T && !isFPEdit )
 continue;
 
 bbox.Merge( item->GetBoundingBox() );
 }
 
 for( PAD* pad : m_pads )
 {
 if( ( aLayers & pad->GetLayerSet() ).none() )
 continue;
 
 bbox.Merge( pad->GetBoundingBox() );
 }
 
 for( ZONE* zone : m_zones )
 {
 if( ( aLayers & zone->GetLayerSet() ).none() )
 continue;
 
 bbox.Merge( zone->GetBoundingBox() );
 }
 
 return bbox;
}
 
 
SHAPE_POLY_SET FOOTPRINT::GetBoundingHull() const
{
 const BOARD* board = GetBoard();
 bool isFPEdit = board && board->IsFootprintHolder();
 
 if( board )
 {
 if( m_hullCacheTimeStamp >= board->GetTimeStamp() )
 return m_cachedHull;
 }
 
 SHAPE_POLY_SET rawPolys;
 SHAPE_POLY_SET hull;
 
 for( BOARD_ITEM* item : m_drawings )
 {
 if( !isFPEdit && m_privateLayers.test( item->GetLayer() ) )
 continue;
 
 if( item->Type() != PCB_TEXT_T && item->Type() != PCB_BITMAP_T )
 {
 item->TransformShapeToPolygon( rawPolys, UNDEFINED_LAYER, 0, ARC_LOW_DEF,
 ERROR_OUTSIDE );
 }
 
 // We intentionally exclude footprint text from the bounding hull.
 }
 
 for( PAD* pad : m_pads )
 {
 pad->TransformShapeToPolygon( rawPolys, UNDEFINED_LAYER, 0, ARC_LOW_DEF, ERROR_OUTSIDE );
 // In case hole is larger than pad
 pad->TransformHoleToPolygon( rawPolys, 0, ARC_LOW_DEF, ERROR_OUTSIDE );
 }
 
 for( ZONE* zone : m_zones )
 {
 for( PCB_LAYER_ID layer : zone->GetLayerSet().Seq() )
 {
 const SHAPE_POLY_SET& layerPoly = *zone->GetFilledPolysList( layer );
 
 for( int ii = 0; ii < layerPoly.OutlineCount(); ii++ )
 {
 const SHAPE_LINE_CHAIN& poly = layerPoly.COutline( ii );
 rawPolys.AddOutline( poly );
 }
 }
 }
 
 // If there are some graphic items, build the actual hull.
 // However if no items, create a minimal polygon (can happen if a footprint
 // is created with no item: it contains only 2 texts.
 if( rawPolys.OutlineCount() == 0 )
 {
 // generate a small dummy rectangular outline around the anchor
 const int halfsize = pcbIUScale.mmToIU( 1.0 );
 
 rawPolys.NewOutline();
 
 // add a square:
 rawPolys.Append( GetPosition().x - halfsize, GetPosition().y - halfsize );
 rawPolys.Append( GetPosition().x + halfsize, GetPosition().y - halfsize );
 rawPolys.Append( GetPosition().x + halfsize, GetPosition().y + halfsize );
 rawPolys.Append( GetPosition().x - halfsize, GetPosition().y + halfsize );
 }
 
 std::vector<VECTOR2I> convex_hull;
 BuildConvexHull( convex_hull, rawPolys );
 
 m_cachedHull.RemoveAllContours();
 m_cachedHull.NewOutline();
 
 for( const VECTOR2I& pt : convex_hull )
 m_cachedHull.Append( pt );
 
 if( board )
 m_hullCacheTimeStamp = board->GetTimeStamp();
 
 return m_cachedHull;
}
 
 
void FOOTPRINT::GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList )
{
 wxString msg, msg2;
 
 // Don't use GetShownText(); we want to see the variable references here
 aList.emplace_back( UnescapeString( Reference().GetText() ),
 UnescapeString( Value().GetText() ) );
 
 if( aFrame->IsType( FRAME_FOOTPRINT_VIEWER )
 || aFrame->IsType( FRAME_FOOTPRINT_CHOOSER )
 || aFrame->IsType( FRAME_FOOTPRINT_EDITOR ) )
 {
 size_t padCount = GetPadCount( DO_NOT_INCLUDE_NPTH );
 
 aList.emplace_back( _( "Library" ), GetFPID().GetLibNickname().wx_str() );
 
 aList.emplace_back( _( "Footprint Name" ), GetFPID().GetLibItemName().wx_str() );
 
 aList.emplace_back( _( "Pads" ), wxString::Format( wxT( "%zu" ), padCount ) );
 
 aList.emplace_back( wxString::Format( _( "Doc: %s" ), GetLibDescription() ),
 wxString::Format( _( "Keywords: %s" ), GetKeywords() ) );
 
 return;
 }
 
 // aFrame is the board editor:
 aList.emplace_back( _( "Board Side" ), IsFlipped() ? _( "Back (Flipped)" ) : _( "Front" ) );
 
 auto addToken = []( wxString* aStr, const wxString& aAttr )
 {
 if( !aStr->IsEmpty() )
 *aStr += wxT( ", " );
 
 *aStr += aAttr;
 };
 
 wxString status;
 wxString attrs;
 
 if( IsLocked() )
 addToken( &status, _( "Locked" ) );
 
 if( m_fpStatus & FP_is_PLACED )
 addToken( &status, _( "autoplaced" ) );
 
 if( m_attributes & FP_BOARD_ONLY )
 addToken( &attrs, _( "not in schematic" ) );
 
 if( m_attributes & FP_EXCLUDE_FROM_POS_FILES )
 addToken( &attrs, _( "exclude from pos files" ) );
 
 if( m_attributes & FP_EXCLUDE_FROM_BOM )
 addToken( &attrs, _( "exclude from BOM" ) );
 
 if( m_attributes & FP_DNP )
 addToken( &attrs, _( "DNP" ) );
 
 aList.emplace_back( _( "Status: " ) + status, _( "Attributes:" ) + wxS( " " ) + attrs );
 
 aList.emplace_back( _( "Rotation" ), wxString::Format( wxT( "%.4g" ),
 GetOrientation().AsDegrees() ) );
 
 msg.Printf( _( "Footprint: %s" ), m_fpid.GetUniStringLibId() );
 msg2.Printf( _( "3D-Shape: %s" ), m_3D_Drawings.empty() ? _( "<none>" )
 : m_3D_Drawings.front().m_Filename );
 aList.emplace_back( msg, msg2 );
 
 msg.Printf( _( "Doc: %s" ), m_libDescription );
 msg2.Printf( _( "Keywords: %s" ), m_keywords );
 aList.emplace_back( msg, msg2 );
}
 
 
bool FOOTPRINT::IsOnLayer( PCB_LAYER_ID aLayer ) const
{
 // If we have any pads, fall back on normal checking
 for( PAD* pad : m_pads )
 {
 if( pad->IsOnLayer( aLayer ) )
 return true;
 }
 
 for( ZONE* zone : m_zones )
 {
 if( zone->IsOnLayer( aLayer ) )
 return true;
 }
 
 for( PCB_FIELD* field : m_fields )
 {
 if( field->IsOnLayer( aLayer ) )
 return true;
 }
 
 for( BOARD_ITEM* item : m_drawings )
 {
 if( item->IsOnLayer( aLayer ) )
 return true;
 }
 
 return false;
}
 
 
bool FOOTPRINT::HitTestOnLayer( const VECTOR2I& aPosition, PCB_LAYER_ID aLayer, int aAccuracy ) const
{
 for( PAD* pad : m_pads )
 {
 if( pad->IsOnLayer( aLayer ) && pad->HitTest( aPosition, aAccuracy ) )
 return true;
 }
 
 for( ZONE* zone : m_zones )
 {
 if( zone->IsOnLayer( aLayer ) && zone->HitTest( aPosition, aAccuracy ) )
 return true;
 }
 
 for( BOARD_ITEM* item : m_drawings )
 {
 if( item->Type() != PCB_TEXT_T && item->IsOnLayer( aLayer )
 && item->HitTest( aPosition, aAccuracy ) )
 {
 return true;
 }
 }
 
 return false;
}
 
 
bool FOOTPRINT::HitTestOnLayer( const BOX2I& aRect, bool aContained, PCB_LAYER_ID aLayer, int aAccuracy ) const
{
 std::vector<BOARD_ITEM*> items;
 
 for( PAD* pad : m_pads )
 {
 if( pad->IsOnLayer( aLayer ) )
 items.push_back( pad );
 }
 
 for( ZONE* zone : m_zones )
 {
 if( zone->IsOnLayer( aLayer ) )
 items.push_back( zone );
 }
 
 for( BOARD_ITEM* item : m_drawings )
 {
 if( item->Type() != PCB_TEXT_T && item->IsOnLayer( aLayer ) )
 items.push_back( item );
 }
 
 // If we require the elements to be contained in the rect and any of them are not,
 // we can return false;
 // Conversely, if we just require any of the elements to have a hit, we can return true
 // when the first one is found.
 for( BOARD_ITEM* item : items )
 {
 if( !aContained && item->HitTest( aRect, aContained, aAccuracy ) )
 return true;
 else if( aContained && !item->HitTest( aRect, aContained, aAccuracy ) )
 return false;
 }
 
 // If we didn't exit in the loop, that means that we did not return false for aContained or
 // we did not return true for !aContained. So we can just return the bool with a test of
 // whether there were any elements or not.
 return !items.empty() && aContained;
}
 
 
bool FOOTPRINT::HitTest( const VECTOR2I& aPosition, int aAccuracy ) const
{
 BOX2I rect = GetBoundingBox( false, false );
 return rect.Inflate( aAccuracy ).Contains( aPosition );
}
 
 
bool FOOTPRINT::HitTestAccurate( const VECTOR2I& aPosition, int aAccuracy ) const
{
 return GetBoundingHull().Collide( aPosition, aAccuracy );
}
 
 
bool FOOTPRINT::HitTest( const BOX2I& aRect, bool aContained, int aAccuracy ) const
{
 BOX2I arect = aRect;
 arect.Inflate( aAccuracy );
 
 if( aContained )
 {
 return arect.Contains( GetBoundingBox( false, false ) );
 }
 else
 {
 // If the rect does not intersect the bounding box, skip any tests
 if( !aRect.Intersects( GetBoundingBox( false, false ) ) )
 return false;
 
 // The empty footprint dummy rectangle intersects the selection area.
 if( m_pads.empty() && m_zones.empty() && m_drawings.empty() )
 return GetBoundingBox( true, false ).Intersects( arect );
 
 // Determine if any elements in the FOOTPRINT intersect the rect
 for( PAD* pad : m_pads )
 {
 if( pad->HitTest( arect, false, 0 ) )
 return true;
 }
 
 for( ZONE* zone : m_zones )
 {
 if( zone->HitTest( arect, false, 0 ) )
 return true;
 }
 
 // PCB fields are selectable on their own, so they don't get tested
 
 for( BOARD_ITEM* item : m_drawings )
 {
 // Text items are selectable on their own, and are therefore excluded from this
 // test. TextBox items are NOT selectable on their own, and so MUST be included
 // here. Bitmaps aren't selectable since they aren't displayed.
 if( item->Type() != PCB_TEXT_T && item->HitTest( arect, false, 0 ) )
 return true;
 }
 
 // Groups are not hit-tested; only their members
 
 // No items were hit
 return false;
 }
}
 
 
PAD* FOOTPRINT::FindPadByNumber( const wxString& aPadNumber, PAD* aSearchAfterMe ) const
{
 bool can_select = aSearchAfterMe ? false : true;
 
 for( PAD* pad : m_pads )
 {
 if( !can_select && pad == aSearchAfterMe )
 {
 can_select = true;
 continue;
 }
 
 if( can_select && pad->GetNumber() == aPadNumber )
 return pad;
 }
 
 return nullptr;
}
 
 
PAD* FOOTPRINT::GetPad( const VECTOR2I& aPosition, LSET aLayerMask )
{
 for( PAD* pad : m_pads )
 {
 // ... and on the correct layer.
 if( !( pad->GetLayerSet() & aLayerMask ).any() )
 continue;
 
 if( pad->HitTest( aPosition ) )
 return pad;
 }
 
 return nullptr;
}
 
 
unsigned FOOTPRINT::GetPadCount( INCLUDE_NPTH_T aIncludeNPTH ) const
{
 if( aIncludeNPTH )
 return m_pads.size();
 
 unsigned cnt = 0;
 
 for( PAD* pad : m_pads )
 {
 if( pad->GetAttribute() == PAD_ATTRIB::NPTH )
 continue;
 
 cnt++;
 }
 
 return cnt;
}
 
 
unsigned FOOTPRINT::GetUniquePadCount( INCLUDE_NPTH_T aIncludeNPTH ) const
{
 std::set<wxString> usedNumbers;
 
 // Create a set of used pad numbers
 for( PAD* pad : m_pads )
 {
 // Skip pads not on copper layers (used to build complex
 // solder paste shapes for instance)
 if( ( pad->GetLayerSet() & LSET::AllCuMask() ).none() )
 continue;
 
 // Skip pads with no name, because they are usually "mechanical"
 // pads, not "electrical" pads
 if( pad->GetNumber().IsEmpty() )
 continue;
 
 if( !aIncludeNPTH )
 {
 // skip NPTH
 if( pad->GetAttribute() == PAD_ATTRIB::NPTH )
 continue;
 }
 
 usedNumbers.insert( pad->GetNumber() );
 }
 
 return usedNumbers.size();
}
 
 
void FOOTPRINT::Add3DModel( FP_3DMODEL* a3DModel )
{
 if( nullptr == a3DModel )
 return;
 
 if( !a3DModel->m_Filename.empty() )
 m_3D_Drawings.push_back( *a3DModel );
}
 
 
// see footprint.h
INSPECT_RESULT FOOTPRINT::Visit( INSPECTOR inspector, void* testData,
 const std::vector<KICAD_T>& aScanTypes )
{
#if 0 && defined(DEBUG)
 std::cout << GetClass().mb_str() << ' ';
#endif
 
 bool drawingsScanned = false;
 
 for( KICAD_T scanType : aScanTypes )
 {
 switch( scanType )
 {
 case PCB_FOOTPRINT_T:
 if( inspector( this, testData ) == INSPECT_RESULT::QUIT )
 return INSPECT_RESULT::QUIT;
 
 break;
 
 case PCB_PAD_T:
 if( IterateForward<PAD*>( m_pads, inspector, testData, { scanType } )
 == INSPECT_RESULT::QUIT )
 {
 return INSPECT_RESULT::QUIT;
 }
 
 break;
 
 case PCB_ZONE_T:
 if( IterateForward<ZONE*>( m_zones, inspector, testData, { scanType } )
 == INSPECT_RESULT::QUIT )
 {
 return INSPECT_RESULT::QUIT;
 }
 
 break;
 
 case PCB_FIELD_T:
 if( IterateForward<PCB_FIELD*>( m_fields, inspector, testData, { scanType } )
 == INSPECT_RESULT::QUIT )
 {
 return INSPECT_RESULT::QUIT;
 }
 
 break;
 
 case PCB_TEXT_T:
 case PCB_DIM_ALIGNED_T:
 case PCB_DIM_LEADER_T:
 case PCB_DIM_CENTER_T:
 case PCB_DIM_RADIAL_T:
 case PCB_DIM_ORTHOGONAL_T:
 case PCB_SHAPE_T:
 case PCB_TEXTBOX_T:
 if( !drawingsScanned )
 {
 if( IterateForward<BOARD_ITEM*>( m_drawings, inspector, testData, aScanTypes )
 == INSPECT_RESULT::QUIT )
 {
 return INSPECT_RESULT::QUIT;
 }
 
 drawingsScanned = true;
 }
 
 break;
 
 case PCB_GROUP_T:
 if( IterateForward<PCB_GROUP*>( m_groups, inspector, testData, { scanType } )
 == INSPECT_RESULT::QUIT )
 {
 return INSPECT_RESULT::QUIT;
 }
 
 break;
 
 default:
 break;
 }
 }
 
 return INSPECT_RESULT::CONTINUE;
}
 
 
wxString FOOTPRINT::GetItemDescription( UNITS_PROVIDER* aUnitsProvider ) const
{
 wxString reference = GetReference();
 
 if( reference.IsEmpty() )
 reference = _( "<no reference designator>" );
 
 return wxString::Format( _( "Footprint %s" ), reference );
}
 
 
BITMAPS FOOTPRINT::GetMenuImage() const
{
 return BITMAPS::module;
}
 
 
EDA_ITEM* FOOTPRINT::Clone() const
{
 return new FOOTPRINT( *this );
}
 
 
void FOOTPRINT::RunOnChildren( const std::function<void ( BOARD_ITEM*)>& aFunction ) const
{
 try
 {
 for( PCB_FIELD* field : m_fields )
 aFunction( static_cast<PCB_FIELD*>( field ) );
 
 for( PAD* pad : m_pads )
 aFunction( static_cast<BOARD_ITEM*>( pad ) );
 
 for( ZONE* zone : m_zones )
 aFunction( static_cast<ZONE*>( zone ) );
 
 for( PCB_GROUP* group : m_groups )
 aFunction( static_cast<PCB_GROUP*>( group ) );
 
 for( BOARD_ITEM* drawing : m_drawings )
 aFunction( static_cast<BOARD_ITEM*>( drawing ) );
 }
 catch( std::bad_function_call& )
 {
 wxFAIL_MSG( wxT( "Error running FOOTPRINT::RunOnChildren" ) );
 }
}
 
 
void FOOTPRINT::ViewGetLayers( int aLayers[], int& aCount ) const
{
 aCount = 2;
 aLayers[0] = LAYER_ANCHOR;
 
 switch( m_layer )
 {
 default:
 wxASSERT_MSG( false, wxT( "Illegal layer" ) ); // do you really have footprints placed
 // on other layers?
 KI_FALLTHROUGH;
 
 case F_Cu:
 aLayers[1] = LAYER_FOOTPRINTS_FR;
 break;
 
 case B_Cu:
 aLayers[1] = LAYER_FOOTPRINTS_BK;
 break;
 }
 
 if( IsLocked() )
 aLayers[ aCount++ ] = LAYER_LOCKED_ITEM_SHADOW;
 
 if( IsConflicting() )
 aLayers[ aCount++ ] = LAYER_CONFLICTS_SHADOW;
 
 // If there are no pads, and only drawings on a silkscreen layer, then report the silkscreen
 // layer as well so that the component can be edited with the silkscreen layer
 bool f_silk = false, b_silk = false, non_silk = false;
 
 for( BOARD_ITEM* item : m_drawings )
 {
 if( item->GetLayer() == F_SilkS )
 f_silk = true;
 else if( item->GetLayer() == B_SilkS )
 b_silk = true;
 else
 non_silk = true;
 }
 
 if( ( f_silk || b_silk ) && !non_silk && m_pads.empty() )
 {
 if( f_silk )
 aLayers[ aCount++ ] = F_SilkS;
 
 if( b_silk )
 aLayers[ aCount++ ] = B_SilkS;
 }
}
 
 
double FOOTPRINT::ViewGetLOD( int aLayer, KIGFX::VIEW* aView ) const
{
 if( aLayer == LAYER_LOCKED_ITEM_SHADOW )
 {
 // The locked shadow shape is shown only if the footprint itself is visible
 if( ( m_layer == F_Cu ) && aView->IsLayerVisible( LAYER_FOOTPRINTS_FR ) )
 return 0.0;
 
 if( ( m_layer == B_Cu ) && aView->IsLayerVisible( LAYER_FOOTPRINTS_BK ) )
 return 0.0;
 
 return std::numeric_limits<double>::max();
 }
 
 if( aLayer == LAYER_CONFLICTS_SHADOW && IsConflicting() )
 {
 // The locked shadow shape is shown only if the footprint itself is visible
 if( ( m_layer == F_Cu ) && aView->IsLayerVisible( LAYER_FOOTPRINTS_FR ) )
 return 0.0;
 
 if( ( m_layer == B_Cu ) && aView->IsLayerVisible( LAYER_FOOTPRINTS_BK ) )
 return 0.0;
 
 return std::numeric_limits<double>::max();
 }
 
 int layer = ( m_layer == F_Cu ) ? LAYER_FOOTPRINTS_FR :
 ( m_layer == B_Cu ) ? LAYER_FOOTPRINTS_BK : LAYER_ANCHOR;
 
 // Currently this is only pertinent for the anchor layer; everything else is drawn from the
 // children.
 // The "good" value is experimentally chosen.
 #define MINIMAL_ZOOM_LEVEL_FOR_VISIBILITY 1.5
 
 if( aView->IsLayerVisible( layer ) )
 return MINIMAL_ZOOM_LEVEL_FOR_VISIBILITY;
 
 return std::numeric_limits<double>::max();
}
 
 
const BOX2I FOOTPRINT::ViewBBox() const
{
 BOX2I area = GetBoundingBox( true, true );
 
 // Inflate in case clearance lines are drawn around pads, etc.
 if( const BOARD* board = GetBoard() )
 {
 int biggest_clearance = board->GetMaxClearanceValue();
 area.Inflate( biggest_clearance );
 }
 
 return area;
}
 
 
bool FOOTPRINT::IsLibNameValid( const wxString & aName )
{
 const wxChar * invalids = StringLibNameInvalidChars( false );
 
 if( aName.find_first_of( invalids ) != std::string::npos )
 return false;
 
 return true;
}
 
 
const wxChar* FOOTPRINT::StringLibNameInvalidChars( bool aUserReadable )
{
 // This list of characters is also duplicated in validators.cpp and
 // lib_id.cpp
 // TODO: Unify forbidden character lists - Warning, invalid filename characters are not the same
 // as invalid LIB_ID characters. We will need to separate the FP filenames from FP names before this
 // can be unified
 static const wxChar invalidChars[] = wxT("%$<>\t\n\r\"\\/:");
 static const wxChar invalidCharsReadable[] = wxT("% $ < > 'tab' 'return' 'line feed' \\ \" / :");
 
 if( aUserReadable )
 return invalidCharsReadable;
 else
 return invalidChars;
}
 
 
void FOOTPRINT::Move( const VECTOR2I& aMoveVector )
{
 VECTOR2I newpos = m_pos + aMoveVector;
 SetPosition( newpos );
}
 
 
void FOOTPRINT::Rotate( const VECTOR2I& aRotCentre, const EDA_ANGLE& aAngle )
{
 EDA_ANGLE orientation = GetOrientation();
 EDA_ANGLE newOrientation = orientation + aAngle;
 VECTOR2I newpos = m_pos;
 RotatePoint( newpos, aRotCentre, aAngle );
 SetPosition( newpos );
 SetOrientation( newOrientation );
 
 for( PCB_FIELD* field : m_fields )
 field->KeepUpright( orientation, newOrientation );
 
 for( BOARD_ITEM* item : m_drawings )
 {
 if( item->Type() == PCB_TEXT_T )
 static_cast<PCB_TEXT*>( item )->KeepUpright( orientation, newOrientation );
 }
 
 m_boundingBoxCacheTimeStamp = 0;
 m_visibleBBoxCacheTimeStamp = 0;
 m_textExcludedBBoxCacheTimeStamp = 0;
 m_hullCacheTimeStamp = 0;
 m_courtyard_cache_timestamp = 0;
}
 
 
void FOOTPRINT::SetLayerAndFlip( PCB_LAYER_ID aLayer )
{
 wxASSERT( aLayer == F_Cu || aLayer == B_Cu );
 
 if( aLayer != GetLayer() )
 Flip( GetPosition(), true );
}
 
 
void FOOTPRINT::Flip( const VECTOR2I& aCentre, bool aFlipLeftRight )
{
 // Move footprint to its final position:
 VECTOR2I finalPos = m_pos;
 
 // Now Flip the footprint.
 // Flipping a footprint is a specific transform: it is not mirrored like a text.
 // We have to change the side, and ensure the footprint rotation is modified according to the
 // transform, because this parameter is used in pick and place files, and when updating the
 // footprint from library.
 // When flipped around the X axis (Y coordinates changed) orientation is negated
 // When flipped around the Y axis (X coordinates changed) orientation is 180 - old orient.
 // Because it is specific to a footprint, we flip around the X axis, and after rotate 180 deg
 
 MIRROR( finalPos.y, aCentre.y ); 
 
 SetPosition( finalPos );
 
 // Flip layer
 BOARD_ITEM::SetLayer( FlipLayer( GetLayer() ) );
 
 // Calculate the new orientation, and then clear it for pad flipping.
 EDA_ANGLE newOrientation = -m_orient;
 newOrientation.Normalize180();
 m_orient = ANGLE_0;
 
 // Mirror fields to other side of board.
 for( PCB_FIELD* field : m_fields )
 field->Flip( m_pos, false );
 
 // Mirror pads to other side of board.
 for( PAD* pad : m_pads )
 pad->Flip( m_pos, false );
 
 // Now set the new orientation.
 m_orient = newOrientation;
 
 // Mirror zones to other side of board.
 for( ZONE* zone : m_zones )
 zone->Flip( m_pos, false );
 
 // Reverse mirror footprint graphics and texts.
 for( BOARD_ITEM* item : m_drawings )
 item->Flip( m_pos, false );
 
 // Now rotate 180 deg if required
 if( aFlipLeftRight )
 Rotate( aCentre, ANGLE_180 );
 
 m_boundingBoxCacheTimeStamp = 0;
 m_visibleBBoxCacheTimeStamp = 0;
 m_textExcludedBBoxCacheTimeStamp = 0;
 m_courtyard_cache_timestamp = 0;
 
 m_cachedHull.Mirror( aFlipLeftRight, !aFlipLeftRight, m_pos );
 
 std::swap( m_courtyard_cache_front, m_courtyard_cache_back );
}
 
 
void FOOTPRINT::SetPosition( const VECTOR2I& aPos )
{
 VECTOR2I delta = aPos - m_pos;
 
 m_pos += delta;
 
 for( PCB_FIELD* field : m_fields )
 field->EDA_TEXT::Offset( delta );
 
 for( PAD* pad : m_pads )
 pad->SetPosition( pad->GetPosition() + delta );
 
 for( ZONE* zone : m_zones )
 zone->Move( delta );
 
 for( BOARD_ITEM* item : m_drawings )
 item->Move( delta );
 
 m_cachedBoundingBox.Move( delta );
 m_cachedVisibleBBox.Move( delta );
 m_cachedTextExcludedBBox.Move( delta );
 m_courtyard_cache_back.Move( delta );
 m_courtyard_cache_front.Move( delta );
 m_cachedHull.Move( delta );
}
 
 
void FOOTPRINT::MoveAnchorPosition( const VECTOR2I& aMoveVector )
{
 /*
 * Move the reference point of the footprint
 * the footprints elements (pads, outlines, edges .. ) are moved
 * but:
 * - the footprint position is not modified.
 * - the relative (local) coordinates of these items are modified
 * - Draw coordinates are updated
 */
 
 // Update (move) the relative coordinates relative to the new anchor point.
 VECTOR2I moveVector = aMoveVector;
 RotatePoint( moveVector, -GetOrientation() );
 
 // Update field local coordinates
 for( PCB_FIELD* field : m_fields )
 field->Move( moveVector );
 
 // Update the pad local coordinates.
 for( PAD* pad : m_pads )
 pad->Move( moveVector );
 
 // Update the draw element coordinates.
 for( BOARD_ITEM* item : GraphicalItems() )
 item->Move( moveVector );
 
 // Update the keepout zones
 for( ZONE* zone : Zones() )
 zone->Move( moveVector );
 
 // Update the 3D models
 for( FP_3DMODEL& model : Models() )
 {
 model.m_Offset.x += pcbIUScale.IUTomm( moveVector.x );
 model.m_Offset.y -= pcbIUScale.IUTomm( moveVector.y );
 }
 
 m_cachedBoundingBox.Move( moveVector );
 m_cachedVisibleBBox.Move( moveVector );
 m_cachedTextExcludedBBox.Move( moveVector );
 m_cachedHull.Move( moveVector );
}
 
 
void FOOTPRINT::SetOrientation( const EDA_ANGLE& aNewAngle )
{
 EDA_ANGLE angleChange = aNewAngle - m_orient; // change in rotation
 
 m_orient = aNewAngle;
 m_orient.Normalize180();
 
 for( PCB_FIELD* field : m_fields )
 field->Rotate( GetPosition(), angleChange );
 
 for( PAD* pad : m_pads )
 pad->Rotate( GetPosition(), angleChange );
 
 for( ZONE* zone : m_zones )
 zone->Rotate( GetPosition(), angleChange );
 
 for( BOARD_ITEM* item : m_drawings )
 item->Rotate( GetPosition(), angleChange );
 
 m_boundingBoxCacheTimeStamp = 0;
 m_visibleBBoxCacheTimeStamp = 0;
 m_textExcludedBBoxCacheTimeStamp = 0;
 m_courtyard_cache_timestamp = 0;
 
 m_cachedHull.Rotate( angleChange, GetPosition() );
}
 
 
BOARD_ITEM* FOOTPRINT::Duplicate() const
{
 FOOTPRINT* dupe = static_cast<FOOTPRINT*>( BOARD_ITEM::Duplicate() );
 
 dupe->RunOnChildren( [&]( BOARD_ITEM* child )
 {
 const_cast<KIID&>( child->m_Uuid ) = KIID();
 });
 
 return dupe;
}
 
 
BOARD_ITEM* FOOTPRINT::DuplicateItem( const BOARD_ITEM* aItem, bool aAddToFootprint )
{
 BOARD_ITEM* new_item = nullptr;
 
 switch( aItem->Type() )
 {
 case PCB_PAD_T:
 {
 PAD* new_pad = new PAD( *static_cast<const PAD*>( aItem ) );
 const_cast<KIID&>( new_pad->m_Uuid ) = KIID();
 
 if( aAddToFootprint )
 m_pads.push_back( new_pad );
 
 new_item = new_pad;
 break;
 }
 
 case PCB_ZONE_T:
 {
 ZONE* new_zone = new ZONE( *static_cast<const ZONE*>( aItem ) );
 const_cast<KIID&>( new_zone->m_Uuid ) = KIID();
 
 if( aAddToFootprint )
 m_zones.push_back( new_zone );
 
 new_item = new_zone;
 break;
 }
 
 case PCB_FIELD_T:
 case PCB_TEXT_T:
 {
 PCB_TEXT* new_text = new PCB_TEXT( *static_cast<const PCB_TEXT*>( aItem ) );
 const_cast<KIID&>( new_text->m_Uuid ) = KIID();
 
 if( aItem->Type() == PCB_FIELD_T )
 {
 switch( static_cast<const PCB_FIELD*>( aItem )->GetId() )
 {
 case REFERENCE_FIELD: new_text->SetText( wxT( "${REFERENCE}" ) ); break;
 
 case VALUE_FIELD: new_text->SetText( wxT( "${VALUE}" ) ); break;
 
 case DATASHEET_FIELD: new_text->SetText( wxT( "${DATASHEET}" ) ); break;
 
 case FOOTPRINT_FIELD: new_text->SetText( wxT( "${FOOTPRINT}" ) ); break;
 }
 }
 
 if( aAddToFootprint )
 Add( new_text );
 
 new_item = new_text;
 break;
 }
 
 case PCB_SHAPE_T:
 {
 PCB_SHAPE* new_shape = new PCB_SHAPE( *static_cast<const PCB_SHAPE*>( aItem ) );
 const_cast<KIID&>( new_shape->m_Uuid ) = KIID();
 
 if( aAddToFootprint )
 Add( new_shape );
 
 new_item = new_shape;
 break;
 }
 
 case PCB_TEXTBOX_T:
 {
 PCB_TEXTBOX* new_textbox = new PCB_TEXTBOX( *static_cast<const PCB_TEXTBOX*>( aItem ) );
 const_cast<KIID&>( new_textbox->m_Uuid ) = KIID();
 
 if( aAddToFootprint )
 Add( new_textbox );
 
 new_item = new_textbox;
 break;
 }
 
 case PCB_DIM_ALIGNED_T:
 case PCB_DIM_LEADER_T:
 case PCB_DIM_CENTER_T:
 case PCB_DIM_RADIAL_T:
 case PCB_DIM_ORTHOGONAL_T:
 {
 PCB_DIMENSION_BASE* dimension = static_cast<PCB_DIMENSION_BASE*>( aItem->Duplicate() );
 
 if( aAddToFootprint )
 Add( dimension );
 
 new_item = dimension;
 break;
 }
 
 case PCB_GROUP_T:
 new_item = static_cast<const PCB_GROUP*>( aItem )->DeepDuplicate();
 break;
 
 case PCB_FOOTPRINT_T:
 // Ignore the footprint itself
 break;
 
 default:
 // Un-handled item for duplication
 wxFAIL_MSG( wxT( "Duplication not supported for items of class " ) + aItem->GetClass() );
 break;
 }
 
 return new_item;
}
 
 
wxString FOOTPRINT::GetNextPadNumber( const wxString& aLastPadNumber ) const
{
 std::set<wxString> usedNumbers;
 
 // Create a set of used pad numbers
 for( PAD* pad : m_pads )
 usedNumbers.insert( pad->GetNumber() );
 
 // Pad numbers aren't technically reference designators, but the formatting is close enough
 // for these to give us what we need.
 wxString prefix = UTIL::GetRefDesPrefix( aLastPadNumber );
 int num = GetTrailingInt( aLastPadNumber );
 
 while( usedNumbers.count( wxString::Format( wxT( "%s%d" ), prefix, num ) ) )
 num++;
 
 return wxString::Format( wxT( "%s%d" ), prefix, num );
}
 
 
void FOOTPRINT::AutoPositionFields()
{
 // Auto-position reference and value
 BOX2I bbox = GetBoundingBox( false, false );
 bbox.Inflate( pcbIUScale.mmToIU( 0.2 ) ); // Gap between graphics and text
 
 if( Reference().GetPosition() == VECTOR2I( 0, 0 ) )
 {
 Reference().SetHorizJustify( GR_TEXT_H_ALIGN_CENTER );
 Reference().SetVertJustify( GR_TEXT_V_ALIGN_CENTER );
 Reference().SetTextAngle( ANGLE_0 );
 
 Reference().SetX( bbox.GetCenter().x );
 Reference().SetY( bbox.GetTop() - Reference().GetTextSize().y / 2 );
 }
 
 if( Value().GetPosition() == VECTOR2I( 0, 0 ) )
 {
 Value().SetHorizJustify( GR_TEXT_H_ALIGN_CENTER );
 Value().SetVertJustify( GR_TEXT_V_ALIGN_CENTER );
 Value().SetTextAngle( ANGLE_0 );
 
 Value().SetX( bbox.GetCenter().x );
 Value().SetY( bbox.GetBottom() + Value().GetTextSize().y / 2 );
 }
}
 
 
void FOOTPRINT::IncrementReference( int aDelta )
{
 const wxString& refdes = GetReference();
 
 SetReference( wxString::Format( wxT( "%s%i" ),
 UTIL::GetRefDesPrefix( refdes ),
 GetTrailingInt( refdes ) + aDelta ) );
}
 
 
// Calculate the area of a PolySet, polygons with hole are allowed.
static double polygonArea( SHAPE_POLY_SET& aPolySet )
{
 // Ensure all outlines are closed, before calculating the SHAPE_POLY_SET area
 for( int ii = 0; ii < aPolySet.OutlineCount(); ii++ )
 {
 SHAPE_LINE_CHAIN& outline = aPolySet.Outline( ii );
 outline.SetClosed( true );
 
 for( int jj = 0; jj < aPolySet.HoleCount( ii ); jj++ )
 aPolySet.Hole( ii, jj ).SetClosed( true );
 }
 
 return aPolySet.Area();
}
 
 
double FOOTPRINT::GetCoverageArea( const BOARD_ITEM* aItem, const GENERAL_COLLECTOR& aCollector )
{
 int textMargin = KiROUND( 5 * aCollector.GetGuide()->OnePixelInIU() );
 SHAPE_POLY_SET poly;
 
 if( aItem->Type() == PCB_MARKER_T )
 {
 const PCB_MARKER* marker = static_cast<const PCB_MARKER*>( aItem );
 SHAPE_LINE_CHAIN markerShape;
 
 marker->ShapeToPolygon( markerShape );
 return markerShape.Area();
 }
 else if( aItem->Type() == PCB_GROUP_T )
 {
 double combinedArea = 0.0;
 
 for( BOARD_ITEM* member : static_cast<const PCB_GROUP*>( aItem )->GetItems() )
 combinedArea += GetCoverageArea( member, aCollector );
 
 return combinedArea;
 }
 if( aItem->Type() == PCB_FOOTPRINT_T )
 {
 const FOOTPRINT* footprint = static_cast<const FOOTPRINT*>( aItem );
 
 poly = footprint->GetBoundingHull();
 }
 else if( aItem->Type() == PCB_FIELD_T || aItem->Type() == PCB_TEXT_T )
 {
 const PCB_TEXT* text = static_cast<const PCB_TEXT*>( aItem );
 
 text->TransformTextToPolySet( poly, textMargin, ARC_LOW_DEF, ERROR_INSIDE );
 }
 else if( aItem->Type() == PCB_TEXTBOX_T )
 {
 const PCB_TEXTBOX* tb = static_cast<const PCB_TEXTBOX*>( aItem );
 
 tb->TransformTextToPolySet( poly, textMargin, ARC_LOW_DEF, ERROR_INSIDE );
 }
 else if( aItem->Type() == PCB_SHAPE_T )
 {
 // Approximate "linear" shapes with just their width squared, as we don't want to consider
 // a linear shape as being much bigger than another for purposes of selection filtering
 // just because it happens to be really long.
 
 const PCB_SHAPE* shape = static_cast<const PCB_SHAPE*>( aItem );
 
 switch( shape->GetShape() )
 {
 case SHAPE_T::SEGMENT:
 case SHAPE_T::ARC:
 case SHAPE_T::BEZIER:
 return shape->GetWidth() * shape->GetWidth();
 
 case SHAPE_T::RECTANGLE:
 case SHAPE_T::CIRCLE:
 case SHAPE_T::POLY:
 {
 if( !shape->IsFilled() )
 return shape->GetWidth() * shape->GetWidth();
 
 KI_FALLTHROUGH;
 }
 
 default:
 shape->TransformShapeToPolygon( poly, UNDEFINED_LAYER, 0, ARC_LOW_DEF, ERROR_OUTSIDE );
 }
 }
 else if( aItem->Type() == PCB_TRACE_T || aItem->Type() == PCB_ARC_T )
 {
 double width = static_cast<const PCB_TRACK*>( aItem )->GetWidth();
 return width * width;
 }
 else
 {
 aItem->TransformShapeToPolygon( poly, UNDEFINED_LAYER, 0, ARC_LOW_DEF, ERROR_OUTSIDE );
 }
 
 return polygonArea( poly );
}
 
 
double FOOTPRINT::CoverageRatio( const GENERAL_COLLECTOR& aCollector ) const
{
 int textMargin = KiROUND( 5 * aCollector.GetGuide()->OnePixelInIU() );
 
 SHAPE_POLY_SET footprintRegion( GetBoundingHull() );
 SHAPE_POLY_SET coveredRegion;
 
 TransformPadsToPolySet( coveredRegion, UNDEFINED_LAYER, 0, ARC_LOW_DEF, ERROR_OUTSIDE );
 
 TransformFPShapesToPolySet( coveredRegion, UNDEFINED_LAYER, textMargin, ARC_LOW_DEF,
 ERROR_OUTSIDE,
 true, /* include text */
 false, /* include shapes */
 false /* include private items */ );
 
 for( int i = 0; i < aCollector.GetCount(); ++i )
 {
 const BOARD_ITEM* item = aCollector[i];
 
 switch( item->Type() )
 {
 case PCB_FIELD_T:
 case PCB_TEXT_T:
 case PCB_TEXTBOX_T:
 case PCB_SHAPE_T:
 case PCB_TRACE_T:
 case PCB_ARC_T:
 case PCB_VIA_T:
 if( item->GetParent() != this )
 {
 item->TransformShapeToPolygon( coveredRegion, UNDEFINED_LAYER, 0, ARC_LOW_DEF,
 ERROR_OUTSIDE );
 }
 break;
 
 case PCB_FOOTPRINT_T:
 if( item != this )
 {
 const FOOTPRINT* footprint = static_cast<const FOOTPRINT*>( item );
 coveredRegion.AddOutline( footprint->GetBoundingHull().Outline( 0 ) );
 }
 break;
 
 default:
 break;
 }
 }
 
 double footprintRegionArea = polygonArea( footprintRegion );
 double uncoveredRegionArea = footprintRegionArea - polygonArea( coveredRegion );
 double coveredArea = footprintRegionArea - uncoveredRegionArea;
 double ratio = ( coveredArea / footprintRegionArea );
 
 // Test for negative ratio (should not occur).
 // better to be conservative (this will result in the disambiguate dialog)
 if( ratio < 0.0 )
 return 1.0;
 
 return std::min( ratio, 1.0 );
}
 
 
std::shared_ptr<SHAPE> FOOTPRINT::GetEffectiveShape( PCB_LAYER_ID aLayer, FLASHING aFlash ) const
{
 std::shared_ptr<SHAPE_COMPOUND> shape = std::make_shared<SHAPE_COMPOUND>();
 
 // There are several possible interpretations here:
 // 1) the bounding box (without or without invisible items)
 // 2) just the pads and "edges" (ie: non-text graphic items)
 // 3) the courtyard
 
 // We'll go with (2) for now, unless the caller is clearly looking for (3)
 
 if( aLayer == F_CrtYd || aLayer == B_CrtYd )
 {
 const SHAPE_POLY_SET& courtyard = GetCourtyard( aLayer );
 
 if( courtyard.OutlineCount() == 0 ) // malformed/empty polygon
 return shape;
 
 shape->AddShape( new SHAPE_SIMPLE( courtyard.COutline( 0 ) ) );
 }
 else
 {
 for( PAD* pad : Pads() )
 shape->AddShape( pad->GetEffectiveShape( aLayer, aFlash )->Clone() );
 
 for( BOARD_ITEM* item : GraphicalItems() )
 {
 if( item->Type() == PCB_SHAPE_T )
 shape->AddShape( item->GetEffectiveShape( aLayer, aFlash )->Clone() );
 }
 }
 
 return shape;
}
 
 
const SHAPE_POLY_SET& FOOTPRINT::GetCourtyard( PCB_LAYER_ID aLayer ) const
{
 if( GetBoard() && GetBoard()->GetTimeStamp() > m_courtyard_cache_timestamp )
 const_cast<FOOTPRINT*>( this )->BuildCourtyardCaches();
 
 if( IsBackLayer( aLayer ) )
 return m_courtyard_cache_back;
 else
 return m_courtyard_cache_front;
}
 
 
void FOOTPRINT::BuildCourtyardCaches( OUTLINE_ERROR_HANDLER* aErrorHandler )
{
 m_courtyard_cache_front.RemoveAllContours();
 m_courtyard_cache_back.RemoveAllContours();
 ClearFlags( MALFORMED_COURTYARDS );
 
 m_courtyard_cache_timestamp = GetBoard()->GetTimeStamp();
 
 // Build the courtyard area from graphic items on the courtyard.
 // Only PCB_SHAPE_T have meaning, graphic texts are ignored.
 // Collect items:
 std::vector<PCB_SHAPE*> list_front;
 std::vector<PCB_SHAPE*> list_back;
 
 for( BOARD_ITEM* item : GraphicalItems() )
 {
 if( item->GetLayer() == B_CrtYd && item->Type() == PCB_SHAPE_T )
 list_back.push_back( static_cast<PCB_SHAPE*>( item ) );
 
 if( item->GetLayer() == F_CrtYd && item->Type() == PCB_SHAPE_T )
 list_front.push_back( static_cast<PCB_SHAPE*>( item ) );
 }
 
 if( !list_front.size() && !list_back.size() )
 return;
 
 int maxError = pcbIUScale.mmToIU( 0.02 ); // max error for polygonization
 int chainingEpsilon = pcbIUScale.mmToIU( 0.02 ); // max dist from one endPt to next startPt
 
 if( ConvertOutlineToPolygon( list_front, m_courtyard_cache_front, maxError, chainingEpsilon,
 true, aErrorHandler ) )
 {
 // Touching courtyards, or courtyards -at- the clearance distance are legal.
 m_courtyard_cache_front.Inflate( -1, SHAPE_POLY_SET::CHAMFER_ACUTE_CORNERS, maxError );
 
 m_courtyard_cache_front.CacheTriangulation( false );
 }
 else
 {
 SetFlags( MALFORMED_F_COURTYARD );
 }
 
 if( ConvertOutlineToPolygon( list_back, m_courtyard_cache_back, maxError, chainingEpsilon,
 true, aErrorHandler ) )
 {
 // Touching courtyards, or courtyards -at- the clearance distance are legal.
 m_courtyard_cache_back.Inflate( -1, SHAPE_POLY_SET::CHAMFER_ACUTE_CORNERS, maxError );
 
 m_courtyard_cache_back.CacheTriangulation( false );
 }
 else
 {
 SetFlags( MALFORMED_B_COURTYARD );
 }
}
 
 
std::map<wxString, int> FOOTPRINT::MapPadNumbersToNetTieGroups() const
{
 std::map<wxString, int> padNumberToGroupIdxMap;
 
 for( const PAD* pad : m_pads )
 padNumberToGroupIdxMap[ pad->GetNumber() ] = -1;
 
 auto processPad =
 [&]( wxString aPad, int aGroup )
 {
 aPad.Trim( true ).Trim( false );
 
 if( !aPad.IsEmpty() )
 padNumberToGroupIdxMap[ aPad ] = aGroup;
 };
 
 for( int ii = 0; ii < (int) m_netTiePadGroups.size(); ++ii )
 {
 wxString group( m_netTiePadGroups[ ii ] );
 bool esc = false;
 wxString pad;
 
 for( wxUniCharRef ch : group )
 {
 if( esc )
 {
 esc = false;
 pad.Append( ch );
 continue;
 }
 
 switch( static_cast<unsigned char>( ch ) )
 {
 case '\\':
 esc = true;
 break;
 
 case ',':
 processPad( pad, ii );
 pad.Clear();
 break;
 
 default:
 pad.Append( ch );
 break;
 }
 }
 
 processPad( pad, ii );
 }
 
 return padNumberToGroupIdxMap;
}
 
 
std::vector<PAD*> FOOTPRINT::GetNetTiePads( PAD* aPad ) const
{
 // First build a map from pad numbers to allowed-shorting-group indexes. This ends up being
 // something like O(3n), but it still beats O(n^2) for large numbers of pads.
 
 std::map<wxString, int> padToNetTieGroupMap = MapPadNumbersToNetTieGroups();
 int groupIdx = padToNetTieGroupMap[ aPad->GetNumber() ];
 std::vector<PAD*> otherPads;
 
 if( groupIdx >= 0 )
 {
 for( PAD* pad : m_pads )
 {
 if( padToNetTieGroupMap[ pad->GetNumber() ] == groupIdx )
 otherPads.push_back( pad );
 }
 }
 
 return otherPads;
}
 
 
void FOOTPRINT::CheckFootprintAttributes( const std::function<void( const wxString& )>& aErrorHandler )
{
 int likelyAttr = ( GetLikelyAttribute() & ( FP_SMD | FP_THROUGH_HOLE ) );
 int setAttr = ( GetAttributes() & ( FP_SMD | FP_THROUGH_HOLE ) );
 
 if( setAttr && likelyAttr && setAttr != likelyAttr )
 {
 wxString msg;
 
 switch( likelyAttr )
 {
 case FP_THROUGH_HOLE:
 msg.Printf( _( "(expected 'Through hole'; actual '%s')" ), GetTypeName() );
 break;
 case FP_SMD:
 msg.Printf( _( "(expected 'SMD'; actual '%s')" ), GetTypeName() );
 break;
 }
 
 if( aErrorHandler )
 (aErrorHandler)( msg );
 }
}
 
 
void FOOTPRINT::CheckPads( const std::function<void( const PAD*, int,
 const wxString& )>& aErrorHandler )
{
 if( aErrorHandler == nullptr )
 return;
 
 for( PAD* pad: Pads() )
 {
 if( pad->GetAttribute() == PAD_ATTRIB::PTH || pad->GetAttribute() == PAD_ATTRIB::NPTH )
 {
 if( pad->GetDrillSizeX() < 1 || pad->GetDrillSizeY() < 1 )
 (aErrorHandler)( pad, DRCE_PAD_TH_WITH_NO_HOLE, wxEmptyString );
 }
 
 if( pad->GetAttribute() == PAD_ATTRIB::PTH )
 {
 if( !pad->IsOnCopperLayer() )
 {
 (aErrorHandler)( pad, DRCE_PADSTACK, _( "(PTH pad has no copper layers)" ) );
 }
 else
 {
 LSET lset = pad->GetLayerSet() & LSET::AllCuMask();
 PCB_LAYER_ID layer = lset.Seq().at( 0 );
 SHAPE_POLY_SET padOutline;
 
 pad->TransformShapeToPolygon( padOutline, layer, 0, ARC_HIGH_DEF, ERROR_INSIDE );
 
 std::shared_ptr<SHAPE_SEGMENT> hole = pad->GetEffectiveHoleShape();
 SHAPE_POLY_SET holeOutline;
 
 TransformOvalToPolygon( holeOutline, hole->GetSeg().A, hole->GetSeg().B,
 hole->GetWidth(), ARC_HIGH_DEF, ERROR_INSIDE );
 
 padOutline.BooleanSubtract( holeOutline, SHAPE_POLY_SET::POLYGON_MODE::PM_FAST );
 
 if( padOutline.IsEmpty() )
 aErrorHandler( pad, DRCE_PADSTACK, _( "(PTH pad's hole leaves no copper)" ) );
 }
 }
 
 if( pad->GetAttribute() == PAD_ATTRIB::SMD )
 {
 if( pad->IsOnLayer( F_Cu ) && pad->IsOnLayer( B_Cu ) )
 {
 aErrorHandler( pad, DRCE_PADSTACK,
 _( "(SMD pad appears on both front and back copper)" ) );
 }
 else if( pad->IsOnLayer( F_Cu ) )
 {
 if( pad->IsOnLayer( B_Mask ) )
 {
 aErrorHandler( pad, DRCE_PADSTACK,
 _( "(SMD pad copper and mask layers don't match)" ) );
 }
 else if( pad->IsOnLayer( B_Paste ) )
 {
 aErrorHandler( pad, DRCE_PADSTACK,
 _( "(SMD pad copper and paste layers don't match)" ) );
 }
 }
 else if( pad->IsOnLayer( B_Cu ) )
 {
 if( pad->IsOnLayer( F_Mask ) )
 {
 aErrorHandler( pad, DRCE_PADSTACK,
 _( "(SMD pad copper and mask layers don't match)" ) );
 }
 else if( pad->IsOnLayer( F_Paste ) )
 {
 aErrorHandler( pad, DRCE_PADSTACK,
 _( "(SMD pad copper and paste layers don't match)" ) );
 }
 }
 }
 }
}
 
 
void FOOTPRINT::CheckShortingPads( const std::function<void( const PAD*, const PAD*,
 const VECTOR2I& )>& aErrorHandler )
{
 std::unordered_map<PTR_PTR_CACHE_KEY, int> checkedPairs;
 
 for( PAD* pad : Pads() )
 {
 std::vector<PAD*> netTiePads = GetNetTiePads( pad );
 
 for( PAD* other : Pads() )
 {
 if( other == pad || pad->SameLogicalPadAs( other ) )
 continue;
 
 if( alg::contains( netTiePads, other ) )
 continue;
 
 if( !( ( pad->GetLayerSet() & other->GetLayerSet() ) & LSET::AllCuMask() ).any() )
 continue;
 
 // store canonical order so we don't collide in both directions (a:b and b:a)
 PAD* a = pad;
 PAD* b = other;
 
 if( static_cast<void*>( a ) > static_cast<void*>( b ) )
 std::swap( a, b );
 
 if( checkedPairs.find( { a, b } ) == checkedPairs.end() )
 {
 checkedPairs[ { a, b } ] = 1;
 
 if( pad->GetBoundingBox().Intersects( other->GetBoundingBox() ) )
 {
 VECTOR2I pos;
 SHAPE* padShape = pad->GetEffectiveShape().get();
 SHAPE* otherShape = other->GetEffectiveShape().get();
 
 if( padShape->Collide( otherShape, 0, nullptr, &pos ) )
 aErrorHandler( pad, other, pos );
 }
 }
 }
 }
}
 
 
void FOOTPRINT::CheckNetTies( const std::function<void( const BOARD_ITEM* aItem,
 const BOARD_ITEM* bItem,
 const BOARD_ITEM* cItem,
 const VECTOR2I& )>& aErrorHandler )
{
 // First build a map from pad numbers to allowed-shorting-group indexes. This ends up being
 // something like O(3n), but it still beats O(n^2) for large numbers of pads.
 
 std::map<wxString, int> padNumberToGroupIdxMap = MapPadNumbersToNetTieGroups();
 
 // Now collect all the footprint items which are on copper layers
 
 std::vector<BOARD_ITEM*> copperItems;
 
 for( BOARD_ITEM* item : m_drawings )
 {
 if( item->IsOnCopperLayer() )
 {
 copperItems.push_back( item );
 }
 else if( PCB_GROUP* group = dynamic_cast<PCB_GROUP*>( item ) )
 {
 group->RunOnDescendants( [&]( BOARD_ITEM* descendent )
 {
 if( descendent->IsOnCopperLayer() )
 copperItems.push_back( descendent );
 } );
 }
 }
 
 for( ZONE* zone : m_zones )
 {
 if( !zone->GetIsRuleArea() && zone->IsOnCopperLayer() )
 copperItems.push_back( zone );
 }
 
 for( PCB_FIELD* field : m_fields )
 {
 if( field->IsOnCopperLayer() )
 copperItems.push_back( field );
 }
 
 for( PCB_LAYER_ID layer : { F_Cu, In1_Cu, B_Cu } )
 {
 // Next, build a polygon-set for the copper on this layer. We don't really care about
 // nets here, we just want to end up with a set of outlines describing the distinct
 // copper polygons of the footprint.
 
 SHAPE_POLY_SET copperOutlines;
 std::map<int, std::vector<const PAD*>> outlineIdxToPadsMap;
 
 for( BOARD_ITEM* item : copperItems )
 {
 if( item->IsOnLayer( layer ) )
 {
 item->TransformShapeToPolygon( copperOutlines, layer, 0, ARC_HIGH_DEF,
 ERROR_OUTSIDE );
 }
 }
 
 copperOutlines.Simplify( SHAPE_POLY_SET::PM_FAST );
 
 // Index each pad to the outline in the set that it is part of.
 
 for( const PAD* pad : m_pads )
 {
 for( int ii = 0; ii < copperOutlines.OutlineCount(); ++ii )
 {
 if( pad->GetEffectiveShape( layer )->Collide( &copperOutlines.Outline( ii ), 0 ) )
 outlineIdxToPadsMap[ ii ].emplace_back( pad );
 }
 }
 
 // Finally, ensure that each outline which contains multiple pads has all its pads
 // listed in an allowed-shorting group.
 
 for( const auto& [ outlineIdx, pads ] : outlineIdxToPadsMap )
 {
 if( pads.size() > 1 )
 {
 const PAD* firstPad = pads[0];
 int firstGroupIdx = padNumberToGroupIdxMap[ firstPad->GetNumber() ];
 
 for( size_t ii = 1; ii < pads.size(); ++ii )
 {
 const PAD* thisPad = pads[ii];
 int thisGroupIdx = padNumberToGroupIdxMap[ thisPad->GetNumber() ];
 
 if( thisGroupIdx < 0 || thisGroupIdx != firstGroupIdx )
 {
 BOARD_ITEM* shortingItem = nullptr;
 VECTOR2I pos = ( firstPad->GetPosition() + thisPad->GetPosition() ) / 2;
 
 pos = copperOutlines.Outline( outlineIdx ).NearestPoint( pos );
 
 for( BOARD_ITEM* item : copperItems )
 {
 if( item->HitTest( pos, 1 ) )
 {
 shortingItem = item;
 break;
 }
 }
 
 if( shortingItem )
 aErrorHandler( shortingItem, firstPad, thisPad, pos );
 else
 aErrorHandler( firstPad, thisPad, nullptr, pos );
 }
 }
 }
 }
 }
}
 
 
void FOOTPRINT::CheckNetTiePadGroups( const std::function<void( const wxString& )>& aErrorHandler )
{
 std::set<wxString> padNumbers;
 wxString msg;
 
 auto ret = MapPadNumbersToNetTieGroups();
 
 for( auto [ padNumber, _ ] : ret )
 {
 const PAD* pad = FindPadByNumber( padNumber );
 
 if( !pad )
 {
 msg.Printf( _( "(net-tie pad group contains unknown pad number %s)" ), padNumber );
 aErrorHandler( msg );
 }
 else if( !padNumbers.insert( pad->GetNumber() ).second )
 {
 msg.Printf( _( "(pad %s appears in more than one net-tie pad group)" ), padNumber );
 aErrorHandler( msg );
 }
 }
}
 
 
void FOOTPRINT::swapData( BOARD_ITEM* aImage )
{
 wxASSERT( aImage->Type() == PCB_FOOTPRINT_T );
 
 std::swap( *this, *static_cast<FOOTPRINT*>( aImage ) );
}
 
 
bool FOOTPRINT::HasThroughHolePads() const
{
 for( PAD* pad : Pads() )
 {
 if( pad->GetAttribute() != PAD_ATTRIB::SMD )
 return true;
 }
 
 return false;
}
 
 
#define TEST( a, b ) { if( a != b ) return a < b; }
#define TEST_PT( a, b ) { if( a.x != b.x ) return a.x < b.x; if( a.y != b.y ) return a.y < b.y; }
 
 
bool FOOTPRINT::cmp_drawings::operator()( const BOARD_ITEM* itemA, const BOARD_ITEM* itemB ) const
{
 TEST( itemA->Type(), itemB->Type() );
 TEST( itemA->GetLayer(), itemB->GetLayer() );
 
 if( itemA->Type() == PCB_SHAPE_T )
 {
 const PCB_SHAPE* dwgA = static_cast<const PCB_SHAPE*>( itemA );
 const PCB_SHAPE* dwgB = static_cast<const PCB_SHAPE*>( itemB );
 
 TEST( dwgA->GetShape(), dwgB->GetShape() );
 
 TEST_PT( dwgA->GetStart(), dwgB->GetStart() );
 TEST_PT( dwgA->GetEnd(), dwgB->GetEnd() );
 
 if( dwgA->GetShape() == SHAPE_T::ARC )
 {
 TEST_PT( dwgA->GetCenter(), dwgB->GetCenter() );
 }
 else if( dwgA->GetShape() == SHAPE_T::BEZIER )
 {
 TEST_PT( dwgA->GetBezierC1(), dwgB->GetBezierC1() );
 TEST_PT( dwgA->GetBezierC2(), dwgB->GetBezierC2() );
 }
 else if( dwgA->GetShape() == SHAPE_T::POLY )
 {
 TEST( dwgA->GetPolyShape().TotalVertices(), dwgB->GetPolyShape().TotalVertices() );
 
 for( int ii = 0; ii < dwgA->GetPolyShape().TotalVertices(); ++ii )
 TEST_PT( dwgA->GetPolyShape().CVertex( ii ), dwgB->GetPolyShape().CVertex( ii ) );
 }
 
 TEST( dwgA->GetWidth(), dwgB->GetWidth() );
 }
 
 TEST( itemA->m_Uuid, itemB->m_Uuid ); // should be always the case for valid boards
 
 return itemA < itemB;
}
 
 
bool FOOTPRINT::cmp_pads::operator()( const PAD* aFirst, const PAD* aSecond ) const
{
 if( aFirst->GetNumber() != aSecond->GetNumber() )
 return StrNumCmp( aFirst->GetNumber(), aSecond->GetNumber() ) < 0;
 
 TEST_PT( aFirst->GetFPRelativePosition(), aSecond->GetFPRelativePosition() );
 TEST_PT( aFirst->GetSize(), aSecond->GetSize() );
 TEST( aFirst->GetShape(), aSecond->GetShape() );
 TEST( aFirst->GetLayerSet().Seq(), aSecond->GetLayerSet().Seq() );
 
 TEST( aFirst->m_Uuid, aSecond->m_Uuid ); // should be always the case for valid boards
 
 return aFirst < aSecond;
}
 
 
bool FOOTPRINT::cmp_zones::operator()( const ZONE* aFirst, const ZONE* aSecond ) const
{
 TEST( aFirst->GetAssignedPriority(), aSecond->GetAssignedPriority() );
 TEST( aFirst->GetLayerSet().Seq(), aSecond->GetLayerSet().Seq() );
 
 TEST( aFirst->Outline()->TotalVertices(), aSecond->Outline()->TotalVertices() );
 
 for( int ii = 0; ii < aFirst->Outline()->TotalVertices(); ++ii )
 TEST_PT( aFirst->Outline()->CVertex( ii ), aSecond->Outline()->CVertex( ii ) );
 
 TEST( aFirst->m_Uuid, aSecond->m_Uuid ); // should be always the case for valid boards
 
 return aFirst < aSecond;
}
 
 
#undef TEST
 
 
void FOOTPRINT::TransformPadsToPolySet( SHAPE_POLY_SET& aBuffer, PCB_LAYER_ID aLayer,
 int aClearance, int aMaxError, ERROR_LOC aErrorLoc,
 bool aSkipNPTHPadsWihNoCopper, bool aSkipPlatedPads,
 bool aSkipNonPlatedPads ) const
{
 for( const PAD* pad : m_pads )
 {
 if( !pad->FlashLayer( aLayer ) )
 continue;
 
 VECTOR2I clearance( aClearance, aClearance );
 
 switch( aLayer )
 {
 case F_Cu:
 if( aSkipPlatedPads && pad->FlashLayer( F_Mask ) )
 continue;
 
 if( aSkipNonPlatedPads && !pad->FlashLayer( F_Mask ) )
 continue;
 
 break;
 
 case B_Cu:
 if( aSkipPlatedPads && pad->FlashLayer( B_Mask ) )
 continue;
 
 if( aSkipNonPlatedPads && !pad->FlashLayer( B_Mask ) )
 continue;
 
 break;
 
 case F_Mask:
 case B_Mask:
 clearance.x += pad->GetSolderMaskExpansion();
 clearance.y += pad->GetSolderMaskExpansion();
 break;
 
 case F_Paste:
 case B_Paste:
 clearance += pad->GetSolderPasteMargin();
 break;
 
 default:
 break;
 }
 
 // Our standard TransformShapeToPolygon() routines can't handle differing x:y clearance
 // values (which get generated when a relative paste margin is used with an oblong pad).
 // So we apply this huge hack and fake a larger pad to run the transform on.
 // Of course being a hack it falls down when dealing with custom shape pads (where the
 // size is only the size of the anchor), so for those we punt and just use clearance.x.
 
 if( ( clearance.x < 0 || clearance.x != clearance.y )
 && pad->GetShape() != PAD_SHAPE::CUSTOM )
 {
 VECTOR2I dummySize = pad->GetSize() + clearance + clearance;
 
 if( dummySize.x <= 0 || dummySize.y <= 0 )
 continue;
 
 PAD dummy( *pad );
 dummy.SetSize( dummySize );
 dummy.TransformShapeToPolygon( aBuffer, aLayer, 0, aMaxError, aErrorLoc );
 }
 else
 {
 pad->TransformShapeToPolygon( aBuffer, aLayer, clearance.x, aMaxError, aErrorLoc );
 }
 }
}
 
 
void FOOTPRINT::TransformFPShapesToPolySet( SHAPE_POLY_SET& aBuffer, PCB_LAYER_ID aLayer,
 int aClearance, int aError, ERROR_LOC aErrorLoc,
 bool aIncludeText, bool aIncludeShapes,
 bool aIncludePrivateItems ) const
{
 std::vector<const PCB_TEXT*> texts; // List of PCB_TEXTs to convert
 
 for( BOARD_ITEM* item : GraphicalItems() )
 {
 if( GetPrivateLayers().test( item->GetLayer() ) && !aIncludePrivateItems )
 continue;
 
 if( item->Type() == PCB_TEXT_T && aIncludeText )
 {
 PCB_TEXT* text = static_cast<PCB_TEXT*>( item );
 
 if( aLayer != UNDEFINED_LAYER && text->GetLayer() == aLayer && text->IsVisible() )
 texts.push_back( text );
 }
 
 if( item->Type() == PCB_TEXTBOX_T && aIncludeText )
 {
 PCB_TEXTBOX* textbox = static_cast<PCB_TEXTBOX*>( item );
 
 if( aLayer != UNDEFINED_LAYER && textbox->GetLayer() == aLayer && textbox->IsVisible() )
 {
 // border
 if( textbox->IsBorderEnabled() )
 textbox->PCB_SHAPE::TransformShapeToPolygon( aBuffer, aLayer, 0, aError, aErrorLoc );
 // text
 textbox->TransformTextToPolySet( aBuffer, 0, aError, aErrorLoc );
 }
 }
 
 if( item->Type() == PCB_SHAPE_T && aIncludeShapes )
 {
 const PCB_SHAPE* outline = static_cast<PCB_SHAPE*>( item );
 
 if( aLayer != UNDEFINED_LAYER && outline->GetLayer() == aLayer )
 outline->TransformShapeToPolygon( aBuffer, aLayer, 0, aError, aErrorLoc );
 }
 }
 
 if( aIncludeText )
 {
 for( const PCB_FIELD* field : m_fields )
 {
 if( field->GetLayer() == aLayer && field->IsVisible() )
 texts.push_back( field );
 }
 }
 
 for( const PCB_TEXT* text : texts )
 text->TransformTextToPolySet( aBuffer, aClearance, aError, aErrorLoc );
}
 
 
static struct FOOTPRINT_DESC
{
 FOOTPRINT_DESC()
 {
 ENUM_MAP<ZONE_CONNECTION>& zcMap = ENUM_MAP<ZONE_CONNECTION>::Instance();
 
 if( zcMap.Choices().GetCount() == 0 )
 {
 zcMap.Undefined( ZONE_CONNECTION::INHERITED );
 zcMap.Map( ZONE_CONNECTION::INHERITED, _HKI( "Inherited" ) )
 .Map( ZONE_CONNECTION::NONE, _HKI( "None" ) )
 .Map( ZONE_CONNECTION::THERMAL, _HKI( "Thermal reliefs" ) )
 .Map( ZONE_CONNECTION::FULL, _HKI( "Solid" ) )
 .Map( ZONE_CONNECTION::THT_THERMAL, _HKI( "Thermal reliefs for PTH" ) );
 }
 
 ENUM_MAP<PCB_LAYER_ID>& layerEnum = ENUM_MAP<PCB_LAYER_ID>::Instance();
 
 if( layerEnum.Choices().GetCount() == 0 )
 {
 layerEnum.Undefined( UNDEFINED_LAYER );
 
 for( LSEQ seq = LSET::AllLayersMask().Seq(); seq; ++seq )
 layerEnum.Map( *seq, LSET::Name( *seq ) );
 }
 
 wxPGChoices fpLayers; // footprints might be placed only on F.Cu & B.Cu
 fpLayers.Add( LSET::Name( F_Cu ), F_Cu );
 fpLayers.Add( LSET::Name( B_Cu ), B_Cu );
 
 PROPERTY_MANAGER& propMgr = PROPERTY_MANAGER::Instance();
 REGISTER_TYPE( FOOTPRINT );
 propMgr.AddTypeCast( new TYPE_CAST<FOOTPRINT, BOARD_ITEM> );
 propMgr.AddTypeCast( new TYPE_CAST<FOOTPRINT, BOARD_ITEM_CONTAINER> );
 propMgr.InheritsAfter( TYPE_HASH( FOOTPRINT ), TYPE_HASH( BOARD_ITEM ) );
 propMgr.InheritsAfter( TYPE_HASH( FOOTPRINT ), TYPE_HASH( BOARD_ITEM_CONTAINER ) );
 
 auto layer = new PROPERTY_ENUM<FOOTPRINT, PCB_LAYER_ID>( _HKI( "Layer" ),
 &FOOTPRINT::SetLayerAndFlip, &FOOTPRINT::GetLayer );
 layer->SetChoices( fpLayers );
 propMgr.ReplaceProperty( TYPE_HASH( BOARD_ITEM ), _HKI( "Layer" ), layer );
 
 propMgr.AddProperty( new PROPERTY<FOOTPRINT, double>( _HKI( "Orientation" ),
 &FOOTPRINT::SetOrientationDegrees, &FOOTPRINT::GetOrientationDegrees,
 PROPERTY_DISPLAY::PT_DEGREE ) );
 
 const wxString groupFootprint = _HKI( "Fields" );
 
 propMgr.AddProperty( new PROPERTY<FOOTPRINT, wxString>( _HKI( "Reference" ),
 &FOOTPRINT::SetReference, &FOOTPRINT::GetReferenceAsString ),
 groupFootprint );
 propMgr.AddProperty( new PROPERTY<FOOTPRINT, wxString>( _HKI( "Value" ),
 &FOOTPRINT::SetValue, &FOOTPRINT::GetValueAsString ),
 groupFootprint );
 
 propMgr.AddProperty( new PROPERTY<FOOTPRINT, wxString>( _HKI( "Library link" ),
 NO_SETTER( FOOTPRINT, wxString ), &FOOTPRINT::GetFPIDAsString ),
 groupFootprint );
 propMgr.AddProperty( new PROPERTY<FOOTPRINT, wxString>( _HKI( "Library description" ),
 NO_SETTER( FOOTPRINT, wxString ), &FOOTPRINT::GetLibDescription ),
 groupFootprint );
 propMgr.AddProperty( new PROPERTY<FOOTPRINT, wxString>( _HKI( "Keywords" ),
 NO_SETTER( FOOTPRINT, wxString ), &FOOTPRINT::GetKeywords ),
 groupFootprint );
 
 const wxString groupAttributes = _HKI( "Attributes" );
 
 propMgr.AddProperty( new PROPERTY<FOOTPRINT, bool>( _HKI( "Not in schematic" ),
 &FOOTPRINT::SetBoardOnly, &FOOTPRINT::IsBoardOnly ), groupAttributes );
 propMgr.AddProperty( new PROPERTY<FOOTPRINT, bool>( _HKI( "Exclude from position files" ),
 &FOOTPRINT::SetExcludedFromPosFiles, &FOOTPRINT::IsExcludedFromPosFiles ),
 groupAttributes );
 propMgr.AddProperty( new PROPERTY<FOOTPRINT, bool>( _HKI( "Exclude from bill of materials" ),
 &FOOTPRINT::SetExcludedFromBOM, &FOOTPRINT::IsExcludedFromBOM ),
 groupAttributes );
 propMgr.AddProperty( new PROPERTY<FOOTPRINT, bool>( _HKI( "Do not populate" ),
 &FOOTPRINT::SetDNP, &FOOTPRINT::IsDNP ),
 groupAttributes );
 
 const wxString groupOverrides = _HKI( "Overrides" );
 
 propMgr.AddProperty( new PROPERTY<FOOTPRINT, bool>(
 _HKI( "Exempt from courtyard requirement" ),
 &FOOTPRINT::SetAllowMissingCourtyard, &FOOTPRINT::AllowMissingCourtyard ),
 groupOverrides );
 propMgr.AddProperty( new PROPERTY<FOOTPRINT, int>( _HKI( "Clearance Override" ),
 &FOOTPRINT::SetLocalClearance, &FOOTPRINT::GetLocalClearance,
 PROPERTY_DISPLAY::PT_SIZE ),
 groupOverrides );
 propMgr.AddProperty( new PROPERTY<FOOTPRINT, int>( _HKI( "Solderpaste Margin Override" ),
 &FOOTPRINT::SetLocalSolderPasteMargin, &FOOTPRINT::GetLocalSolderPasteMargin,
 PROPERTY_DISPLAY::PT_SIZE ),
 groupOverrides );
 propMgr.AddProperty( new PROPERTY<FOOTPRINT, double>(
 _HKI( "Solderpaste Margin Ratio Override" ),
 &FOOTPRINT::SetLocalSolderPasteMarginRatio,
 &FOOTPRINT::GetLocalSolderPasteMarginRatio ),
 groupOverrides );
 propMgr.AddProperty( new PROPERTY_ENUM<FOOTPRINT, ZONE_CONNECTION>(
 _HKI( "Zone Connection Style" ),
 &FOOTPRINT::SetZoneConnection, &FOOTPRINT::GetZoneConnection ),
 groupOverrides );
 }
} _FOOTPRINT_DESC;