lib_symbol.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2004-2015 Jean-Pierre Charras, jp.charras at wanadoo.fr
 * Copyright (C) 2008 Wayne Stambaugh <[email protected]>
 * Copyright (C) 2022 CERN
 * Copyright (C) 2004-2024 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
#include <sch_draw_panel.h>
#include <plotters/plotter.h>
#include <sch_screen.h>
#include <template_fieldnames.h>
#include <transform.h>
#include <symbol_library.h>
#include <settings/color_settings.h>
#include <sch_pin.h>
#include <sch_shape.h>
 
#include <memory>
 
std::vector<SEARCH_TERM> LIB_SYMBOL::GetSearchTerms()
{
 std::vector<SEARCH_TERM> terms;
 
 terms.emplace_back( SEARCH_TERM( GetName(), 8 ) );
 
 wxStringTokenizer keywordTokenizer( GetKeyWords(), wxS( " " ), wxTOKEN_STRTOK );
 
 while( keywordTokenizer.HasMoreTokens() )
 terms.emplace_back( SEARCH_TERM( keywordTokenizer.GetNextToken(), 4 ) );
 
 // TODO(JE) rework this later so we can highlight matches in their column
 std::map<wxString, wxString> fields;
 GetChooserFields( fields );
 
 for( const auto& [ name, text ] : fields )
 terms.emplace_back( SEARCH_TERM( text, 4 ) );
 
 // Also include keywords as one long string, just in case
 terms.emplace_back( SEARCH_TERM( GetKeyWords(), 1 ) );
 terms.emplace_back( SEARCH_TERM( GetDescription(), 1 ) );
 
 wxString footprint = GetFootprintField().GetText();
 
 if( !footprint.IsEmpty() )
 terms.emplace_back( SEARCH_TERM( GetFootprintField().GetText(), 1 ) );
 
 return terms;
}
 
 
void LIB_SYMBOL::GetChooserFields( std::map<wxString, wxString>& aColumnMap )
{
 for( SCH_ITEM& item : m_drawings[ SCH_FIELD_T ] )
 {
 SCH_FIELD* field = static_cast<SCH_FIELD*>( &item );
 
 if( field->ShowInChooser() )
 aColumnMap[field->GetName()] = field->EDA_TEXT::GetShownText( false );
 }
}
 
 
bool operator<( const LIB_SYMBOL& aItem1, const LIB_SYMBOL& aItem2 )
{
 return aItem1.GetName() < aItem2.GetName();
}
 
 
struct null_deleter
{
 void operator()(void const *) const
 {
 }
};
 
 
LIB_SYMBOL::LIB_SYMBOL( const wxString& aName, LIB_SYMBOL* aParent, SYMBOL_LIB* aLibrary ) :
 SYMBOL( LIB_SYMBOL_T ),
 m_me( this, null_deleter() )
{
 m_lastModDate = 0;
 m_unitCount = 1;
 m_pinNameOffset = schIUScale.MilsToIU( DEFAULT_PIN_NAME_OFFSET );
 m_options = ENTRY_NORMAL;
 m_unitsLocked = false;
 
 // Add the MANDATORY_FIELDS in RAM only. These are assumed to be present
 // when the field editors are invoked.
 m_drawings[SCH_FIELD_T].reserve( MANDATORY_FIELDS );
 
 for( int i = 0; i < MANDATORY_FIELDS; i++ )
 m_drawings[SCH_FIELD_T].push_back( new SCH_FIELD( this, i ) );
 
 // Ensure reference and value fields are visible when creating a lib symbol
 // whatever the SCH_FIELD Ctor default value is.
 GetReferenceField().SetVisible( true );
 GetValueField().SetVisible( true );
 
 // Set visibilty to false for these other mandatory fields (at lest for now)
 // whatever the SCH_FIELD Ctor default value is.
 GetFootprintField().SetVisible( false );
 GetDatasheetField().SetVisible( false );
 GetDescriptionField().SetVisible( false );
 
 SetName( aName );
 
 if( aParent )
 SetParent( aParent );
 
 SetLib( aLibrary );
}
 
 
LIB_SYMBOL::LIB_SYMBOL( const LIB_SYMBOL& aSymbol, SYMBOL_LIB* aLibrary ) :
 SYMBOL( aSymbol ),
 m_me( this, null_deleter() )
{
 m_library = aLibrary;
 m_name = aSymbol.m_name;
 m_fpFilters = wxArrayString( aSymbol.m_fpFilters );
 m_unitCount = aSymbol.m_unitCount;
 m_unitsLocked = aSymbol.m_unitsLocked;
 m_lastModDate = aSymbol.m_lastModDate;
 m_options = aSymbol.m_options;
 m_libId = aSymbol.m_libId;
 m_keyWords = aSymbol.m_keyWords;
 
 aSymbol.CopyUnitDisplayNames( m_unitDisplayNames );
 
 ClearSelected();
 
 for( const SCH_ITEM& oldItem : aSymbol.m_drawings )
 {
 if( ( oldItem.GetFlags() & ( IS_NEW | STRUCT_DELETED ) ) != 0 )
 continue;
 
 try
 {
 SCH_ITEM* newItem = (SCH_ITEM*) oldItem.Clone();
 newItem->ClearSelected();
 newItem->SetParent( this );
 m_drawings.push_back( newItem );
 }
 catch( ... )
 {
 wxFAIL_MSG( "Failed to clone SCH_ITEM." );
 return;
 }
 }
 
 LIB_SYMBOL_SPTR parent = aSymbol.m_parent.lock();
 
 if( parent )
 SetParent( parent.get() );
}
 
 
const LIB_SYMBOL& LIB_SYMBOL::operator=( const LIB_SYMBOL& aSymbol )
{
 if( &aSymbol == this )
 return aSymbol;
 
 SYMBOL::operator=( aSymbol );
 
 m_library = aSymbol.m_library;
 m_name = aSymbol.m_name;
 m_fpFilters = wxArrayString( aSymbol.m_fpFilters );
 m_unitCount = aSymbol.m_unitCount;
 m_unitsLocked = aSymbol.m_unitsLocked;
 m_lastModDate = aSymbol.m_lastModDate;
 m_options = aSymbol.m_options;
 m_libId = aSymbol.m_libId;
 m_keyWords = aSymbol.m_keyWords;
 
 m_unitDisplayNames.clear();
 aSymbol.CopyUnitDisplayNames( m_unitDisplayNames );
 
 m_drawings.clear();
 
 for( const SCH_ITEM& oldItem : aSymbol.m_drawings )
 {
 if( ( oldItem.GetFlags() & ( IS_NEW | STRUCT_DELETED ) ) != 0 )
 continue;
 
 SCH_ITEM* newItem = (SCH_ITEM*) oldItem.Clone();
 newItem->SetParent( this );
 m_drawings.push_back( newItem );
 }
 
 m_drawings.sort();
 
 LIB_SYMBOL_SPTR parent = aSymbol.m_parent.lock();
 
 if( parent )
 SetParent( parent.get() );
 
 return *this;
}
 
 
unsigned LIB_SYMBOL::GetInheritanceDepth() const
{
 unsigned depth = 0;
 
 LIB_SYMBOL_SPTR parent = GetParent().lock();
 
 while( parent )
 {
 depth += 1;
 parent = parent->GetParent().lock();
 }
 
 return depth;
}
 
 
#define REPORT( msg ) { if( aReporter ) aReporter->Report( msg ); }
#define ITEM_DESC( item ) ( item )->GetItemDescription( &unitsProvider )
 
int LIB_SYMBOL::Compare( const LIB_SYMBOL& aRhs, int aCompareFlags, REPORTER* aReporter ) const
{
 UNITS_PROVIDER unitsProvider( schIUScale, EDA_UNITS::MILLIMETRES );
 
 if( m_me == aRhs.m_me )
 return 0;
 
 if( !aReporter && ( aCompareFlags & SCH_ITEM::COMPARE_FLAGS::ERC ) == 0 )
 {
 if( int tmp = m_name.Cmp( aRhs.m_name ) )
 return tmp;
 
 if( int tmp = m_libId.compare( aRhs.m_libId ) )
 return tmp;
 
 if( m_parent.lock() < aRhs.m_parent.lock() )
 return -1;
 
 if( m_parent.lock() > aRhs.m_parent.lock() )
 return 1;
 }
 
 int retv = 0;
 
 if( m_options != aRhs.m_options )
 {
 retv = ( m_options == ENTRY_NORMAL ) ? -1 : 1;
 REPORT( _( "Power flag differs." ) );
 
 if( !aReporter )
 return retv;
 }
 
 if( int tmp = m_unitCount - aRhs.m_unitCount )
 {
 retv = tmp;
 REPORT( _( "Unit count differs." ) );
 
 if( !aReporter )
 return retv;
 }
 
 // Make sure shapes and pins are sorted. No need with fields as those are
 // matched by id/name.
 
 std::set<const SCH_ITEM*, SCH_ITEM::cmp_items> aShapes;
 std::set<const SCH_ITEM*> aFields;
 std::set<const SCH_ITEM*, SCH_ITEM::cmp_items> aPins;
 
 for( auto it = m_drawings.begin(); it != m_drawings.end(); ++it )
 {
 if( it->Type() == SCH_SHAPE_T )
 aShapes.insert( &(*it) );
 else if( it->Type() == SCH_FIELD_T )
 aFields.insert( &(*it) );
 else if( it->Type() == SCH_PIN_T )
 aPins.insert( &(*it) );
 }
 
 std::set<const SCH_ITEM*, SCH_ITEM::cmp_items> bShapes;
 std::set<const SCH_ITEM*> bFields;
 std::set<const SCH_ITEM*, SCH_ITEM::cmp_items> bPins;
 
 for( auto it = aRhs.m_drawings.begin(); it != aRhs.m_drawings.end(); ++it )
 {
 if( it->Type() == SCH_SHAPE_T )
 bShapes.insert( &(*it) );
 else if( it->Type() == SCH_FIELD_T )
 bFields.insert( &(*it) );
 else if( it->Type() == SCH_PIN_T )
 bPins.insert( &(*it) );
 }
 
 if( int tmp = static_cast<int>( aShapes.size() - bShapes.size() ) )
 {
 retv = tmp;
 REPORT( _( "Graphic item count differs." ) );
 
 if( !aReporter )
 return retv;
 }
 else
 {
 for( auto aIt = aShapes.begin(), bIt = bShapes.begin(); aIt != aShapes.end(); aIt++, bIt++ )
 {
 if( int tmp2 = (*aIt)->compare( *(*bIt), aCompareFlags ) )
 {
 retv = tmp2;
 REPORT( wxString::Format( _( "%s differs." ), ITEM_DESC( *aIt ) ) );
 
 if( !aReporter )
 return retv;
 }
 }
 }
 
 if( int tmp = static_cast<int>( aPins.size() - bPins.size() ) )
 {
 retv = tmp;
 REPORT( _( "Pin count differs." ) );
 
 if( !aReporter )
 return retv;
 }
 else
 {
 for( const SCH_ITEM* aPinItem : aPins )
 {
 const SCH_PIN* aPin = static_cast<const SCH_PIN*>( aPinItem );
 const SCH_PIN* bPin = aRhs.GetPin( aPin->GetNumber(), aPin->GetUnit(),
 aPin->GetBodyStyle() );
 
 if( !bPin )
 {
 retv = 1;
 REPORT( wxString::Format( _( "Pin %s not found." ), aPin->GetNumber() ) );
 
 if( !aReporter )
 return retv;
 }
 else if( int tmp2 = aPinItem->compare( *bPin, aCompareFlags ) )
 {
 retv = tmp2;
 REPORT( wxString::Format( _( "Pin %s differs." ), aPin->GetNumber() ) );
 
 if( !aReporter )
 return retv;
 }
 }
 }
 
 for( const SCH_ITEM* aFieldItem : aFields )
 {
 const SCH_FIELD* aField = static_cast<const SCH_FIELD*>( aFieldItem );
 const SCH_FIELD* bField = nullptr;
 int tmp = 0;
 
 if( aField->IsMandatory() )
 bField = aRhs.GetFieldById( aField->GetId() );
 else
 bField = aRhs.FindField( aField->GetName() );
 
 if( !bField )
 tmp = 1;
 else
 tmp = aFieldItem->compare( *bField, aCompareFlags );
 
 if( tmp )
 {
 retv = tmp;
 REPORT( wxString::Format( _( "%s field differs." ), aField->GetName( false ) ) );
 
 if( !aReporter )
 return retv;
 }
 }
 
 if( int tmp = static_cast<int>( aFields.size() - bFields.size() ) )
 {
 retv = tmp;
 REPORT( _( "Field count differs." ) );
 
 if( !aReporter )
 return retv;
 }
 
 if( int tmp = static_cast<int>( m_fpFilters.GetCount() - aRhs.m_fpFilters.GetCount() ) )
 {
 retv = tmp;
 REPORT( _( "Footprint filters differs." ) );
 
 if( !aReporter )
 return retv;
 }
 else
 {
 for( size_t i = 0; i < m_fpFilters.GetCount(); i++ )
 {
 if( int tmp2 = m_fpFilters[i].Cmp( aRhs.m_fpFilters[i] ) )
 {
 retv = tmp2;
 REPORT( _( "Footprint filters differ." ) );
 
 if( !aReporter )
 return retv;
 }
 }
 }
 
 if( int tmp = m_keyWords.Cmp( aRhs.m_keyWords ) )
 {
 retv = tmp;
 REPORT( _( "Symbol keywords differ." ) );
 
 if( !aReporter )
 return retv;
 }
 
 if( int tmp = m_pinNameOffset - aRhs.m_pinNameOffset )
 {
 retv = tmp;
 REPORT( _( "Symbol pin name offsets differ." ) );
 
 if( !aReporter )
 return retv;
 }
 
 if( ( aCompareFlags & SCH_ITEM::COMPARE_FLAGS::ERC ) == 0 )
 {
 if( m_showPinNames != aRhs.m_showPinNames )
 {
 retv = ( m_showPinNames ) ? 1 : -1;
 REPORT( _( "Show pin names settings differ." ) );
 
 if( !aReporter )
 return retv;
 }
 
 if( m_showPinNumbers != aRhs.m_showPinNumbers )
 {
 retv = ( m_showPinNumbers ) ? 1 : -1;
 REPORT( _( "Show pin numbers settings differ." ) );
 
 if( !aReporter )
 return retv;
 }
 
 if( m_excludedFromSim != aRhs.m_excludedFromSim )
 {
 retv = ( m_excludedFromSim ) ? -1 : 1;
 REPORT( _( "Exclude from simulation settings differ." ) );
 
 if( !aReporter )
 return retv;
 }
 
 if( m_excludedFromBOM != aRhs.m_excludedFromBOM )
 {
 retv = ( m_excludedFromBOM ) ? -1 : 1;
 REPORT( _( "Exclude from bill of materials settings differ." ) );
 
 if( !aReporter )
 return retv;
 }
 
 if( m_excludedFromBoard != aRhs.m_excludedFromBoard )
 {
 retv = ( m_excludedFromBoard ) ? -1 : 1;
 REPORT( _( "Exclude from board settings differ." ) );
 
 if( !aReporter )
 return retv;
 }
 }
 
 if( !aReporter )
 {
 if( m_unitsLocked != aRhs.m_unitsLocked )
 return ( m_unitsLocked ) ? 1 : -1;
 
 // Compare unit display names
 if( m_unitDisplayNames < aRhs.m_unitDisplayNames )
 return -1;
 else if( m_unitDisplayNames > aRhs.m_unitDisplayNames )
 return 1;
 }
 
 return retv;
}
 
 
LIB_SYMBOL_SPTR LIB_SYMBOL::GetRootSymbol() const
{
 const LIB_SYMBOL_SPTR sp = m_parent.lock();
 
 // Recurse until the parent symbol is empty.
 if( sp )
 return sp->GetRootSymbol();
 
 return m_me;
}
 
 
wxString LIB_SYMBOL::GetUnitReference( int aUnit )
{
 return LIB_SYMBOL::LetterSubReference( aUnit, 'A' );
}
 
 
bool LIB_SYMBOL::HasUnitDisplayName( int aUnit )
{
 return ( m_unitDisplayNames.count( aUnit ) == 1 );
}
 
 
wxString LIB_SYMBOL::GetUnitDisplayName( int aUnit )
{
 if( HasUnitDisplayName( aUnit ) )
 return m_unitDisplayNames[aUnit];
 else
 return wxString::Format( _( "Unit %s" ), GetUnitReference( aUnit ) );
}
 
 
void LIB_SYMBOL::CopyUnitDisplayNames( std::map<int, wxString>& aTarget ) const
{
 for( const auto& it : m_unitDisplayNames )
 aTarget[it.first] = it.second;
}
 
 
void LIB_SYMBOL::SetUnitDisplayName( int aUnit, const wxString& aName )
{
 if( aUnit <= GetUnitCount() )
 {
 if( aName.Length() > 0 )
 m_unitDisplayNames[aUnit] = aName;
 else
 m_unitDisplayNames.erase( aUnit );
 }
}
 
 
void LIB_SYMBOL::SetName( const wxString& aName )
{
 m_name = aName;
 m_libId.SetLibItemName( aName );
}
 
 
void LIB_SYMBOL::SetParent( LIB_SYMBOL* aParent )
{
 if( aParent )
 m_parent = aParent->SharedPtr();
 else
 m_parent.reset();
}
 
 
std::unique_ptr< LIB_SYMBOL > LIB_SYMBOL::Flatten() const
{
 std::unique_ptr< LIB_SYMBOL > retv;
 
 if( IsAlias() )
 {
 LIB_SYMBOL_SPTR parent = m_parent.lock();
 
 wxCHECK_MSG( parent, retv,
 wxString::Format( "Parent of derived symbol '%s' undefined", m_name ) );
 
 // Copy the parent.
 if( parent->IsAlias() )
 retv = parent->Flatten();
 else
 retv = std::make_unique<LIB_SYMBOL>( *parent.get() );
 
 retv->m_name = m_name;
 retv->SetLibId( m_libId );
 
 // Now add the inherited part mandatory field (this) information.
 for( int i = 0; i < MANDATORY_FIELDS; i++ )
 {
 wxString tmp = GetFieldById( i )->GetText();
 
 // If the field isn't defined then inherit the parent field value.
 if( tmp.IsEmpty() )
 retv->GetFieldById( i )->SetText( retv->GetFieldById( i )->GetText() );
 else
 *retv->GetFieldById( i ) = *GetFieldById( i );
 }
 
 // Grab all the rest of derived symbol fields.
 for( const SCH_ITEM& item : m_drawings[ SCH_FIELD_T ] )
 {
 const SCH_FIELD* aliasField = static_cast<const SCH_FIELD*>( &item );
 
 // Mandatory fields were already resolved.
 if( aliasField->IsMandatory() )
 continue;
 
 SCH_FIELD* newField = new SCH_FIELD( *aliasField );
 newField->SetParent( retv.get() );
 
 SCH_FIELD* parentField = retv->FindField( aliasField->GetName() );
 
 if( !parentField ) // Derived symbol field does not exist in parent symbol.
 {
 retv->AddDrawItem( newField );
 }
 else // Derived symbol field overrides the parent symbol field.
 {
 retv->RemoveDrawItem( parentField );
 retv->AddDrawItem( newField );
 }
 }
 
 retv->SetKeyWords( m_keyWords.IsEmpty() ? parent->GetKeyWords() : m_keyWords );
 retv->SetFPFilters( m_fpFilters.IsEmpty() ? parent->GetFPFilters() : m_fpFilters );
 
 retv->SetExcludedFromSim( parent->GetExcludedFromSim() );
 retv->SetExcludedFromBOM( parent->GetExcludedFromBOM() );
 retv->SetExcludedFromBoard( parent->GetExcludedFromBoard() );
 
 retv->UpdateFieldOrdinals();
 }
 else
 {
 retv = std::make_unique<LIB_SYMBOL>( *this );
 }
 
 return retv;
}
 
 
const wxString LIB_SYMBOL::GetLibraryName() const
{
 if( m_library )
 return m_library->GetName();
 
 return m_libId.GetLibNickname();
}
 
 
bool LIB_SYMBOL::IsPower() const
{
 std::shared_ptr<LIB_SYMBOL> parent;
 
 if( !m_parent.expired() && ( parent = m_parent.lock() ) )
 {
 if( parent->IsRoot() )
 return parent->m_options == ENTRY_POWER;
 else
 return parent->IsPower();
 }
 
 return m_options == ENTRY_POWER;
}
 
 
void LIB_SYMBOL::SetPower()
{
 if( LIB_SYMBOL_SPTR parent = m_parent.lock() )
 {
 if( parent->IsRoot() )
 parent->m_options = ENTRY_POWER;
 else
 parent->SetPower();
 }
 
 m_options = ENTRY_POWER;
}
 
 
bool LIB_SYMBOL::IsNormal() const
{
 if( LIB_SYMBOL_SPTR parent = m_parent.lock() )
 {
 if( parent->IsRoot() )
 return parent->m_options == ENTRY_NORMAL;
 else
 return parent->IsNormal();
 }
 
 return m_options == ENTRY_NORMAL;
}
 
 
void LIB_SYMBOL::SetNormal()
{
 if( LIB_SYMBOL_SPTR parent = m_parent.lock() )
 {
 if( parent->IsRoot() )
 parent->m_options = ENTRY_NORMAL;
 else
 parent->SetNormal();
 }
 
 m_options = ENTRY_NORMAL;
}
 
 
wxString LIB_SYMBOL::LetterSubReference( int aUnit, int aFirstId )
{
 // use letters as notation. To allow more than 26 units, the sub ref
 // use one letter if letter = A .. Z or a ... z, and 2 letters otherwise
 // first letter is expected to be 'A' or 'a' (i.e. 26 letters are available)
 int u;
 wxString suffix;
 
 do
 {
 u = ( aUnit - 1 ) % 26;
 suffix = wxChar( aFirstId + u ) + suffix;
 aUnit = ( aUnit - u ) / 26;
 } while( aUnit > 0 );
 
 return suffix;
}
 
 
void LIB_SYMBOL::Print( const SCH_RENDER_SETTINGS* aSettings, int aUnit, int aBodyStyle,
 const VECTOR2I& aOffset, bool aForceNoFill, bool aDimmed )
{
 for( SCH_ITEM& item : m_drawings )
 {
 // Do not print private items
 if( item.IsPrivate() )
 continue;
 
 // Do not draw items not attached to the current part
 if( aUnit && item.m_unit && ( item.m_unit != aUnit ) )
 continue;
 
 if( aBodyStyle && item.m_bodyStyle && ( item.m_bodyStyle != aBodyStyle ) )
 continue;
 
 if( item.Type() == SCH_PIN_T )
 {
 item.Print( aSettings, aUnit, aBodyStyle, aOffset, aForceNoFill, aDimmed );
 }
 else if( item.Type() == SCH_FIELD_T )
 {
 SCH_FIELD& field = static_cast<SCH_FIELD&>( item );
 
 if( ( field.IsVisible() && aSettings->m_ShowVisibleFields )
 || ( !field.IsVisible() && aSettings->m_ShowHiddenFields ) )
 {
 item.Print( aSettings, aUnit, aBodyStyle, aOffset, aForceNoFill, aDimmed );
 }
 }
 else if( item.Type() == SCH_SHAPE_T )
 {
 SCH_SHAPE& shape = static_cast<SCH_SHAPE&>( item );
 
 if( shape.GetFillMode() == FILL_T::FILLED_WITH_BG_BODYCOLOR )
 aForceNoFill = true;
 
 shape.Print( aSettings, aUnit, aBodyStyle, aOffset, aForceNoFill, aDimmed );
 }
 else
 {
 item.Print( aSettings, aUnit, aBodyStyle, aOffset, aForceNoFill, aDimmed );
 }
 }
}
 
 
void LIB_SYMBOL::PrintBackground( const SCH_RENDER_SETTINGS* aSettings, int aUnit, int aBodyStyle,
 const VECTOR2I& aOffset, bool aDimmed )
{
 /* draw background for filled items using background option
 * Solid lines will be drawn after the background
 * Note also, background is not drawn when printing in black and white
 */
 if( !GetGRForceBlackPenState() )
 {
 for( SCH_ITEM& item : m_drawings )
 {
 // Do not print private items
 if( item.IsPrivate() )
 continue;
 
 if( item.Type() == SCH_SHAPE_T )
 {
 SCH_SHAPE& shape = static_cast<SCH_SHAPE&>( item );
 
 // Do not draw items not attached to the current part
 if( aUnit && shape.m_unit && ( shape.m_unit != aUnit ) )
 continue;
 
 if( aBodyStyle && shape.m_bodyStyle && ( shape.m_bodyStyle != aBodyStyle ) )
 continue;
 
 if( shape.GetFillMode() == FILL_T::FILLED_WITH_BG_BODYCOLOR )
 shape.Print( aSettings, aUnit, aBodyStyle, aOffset, false, aDimmed );
 }
 }
 }
}
 
 
void LIB_SYMBOL::Plot( PLOTTER *aPlotter, bool aBackground, const SCH_PLOT_OPTS& aPlotOpts,
 int aUnit, int aBodyStyle, const VECTOR2I &aOffset, bool aDimmed )
{
 wxASSERT( aPlotter != nullptr );
 
 SCH_RENDER_SETTINGS* renderSettings = getRenderSettings( aPlotter );
 COLOR4D color = renderSettings->GetLayerColor( LAYER_DEVICE );
 COLOR4D bg = renderSettings->GetBackgroundColor();
 
 if( bg == COLOR4D::UNSPECIFIED || !aPlotter->GetColorMode() )
 bg = COLOR4D::WHITE;
 
 if( aDimmed )
 {
 color.Desaturate( );
 color = color.Mix( bg, 0.5f );
 }
 
 aPlotter->SetColor( color );
 
 for( SCH_ITEM& item : m_drawings )
 {
 // Do not plot private items
 if( item.IsPrivate() )
 continue;
 
 // LIB_FIELDs are not plotted here, because this plot function is used to plot schematic
 // items which have their own SCH_FIELDs
 if( item.Type() == SCH_FIELD_T )
 continue;
 
 if( aUnit && item.m_unit && ( item.m_unit != aUnit ) )
 continue;
 
 if( aBodyStyle && item.m_bodyStyle && ( item.m_bodyStyle != aBodyStyle ) )
 continue;
 
 item.Plot( aPlotter, aBackground, aPlotOpts, aUnit, aBodyStyle, aOffset, aDimmed );
 }
}
 
 
void LIB_SYMBOL::PlotFields( PLOTTER* aPlotter, bool aBackground, const SCH_PLOT_OPTS& aPlotOpts,
 int aUnit, int aBodyStyle, const VECTOR2I& aOffset, bool aDimmed )
{
 wxASSERT( aPlotter != nullptr );
 
 SCH_RENDER_SETTINGS* renderSettings = getRenderSettings( aPlotter );
 COLOR4D color = renderSettings->GetLayerColor( LAYER_FIELDS );
 COLOR4D bg = renderSettings->GetBackgroundColor();
 
 if( bg == COLOR4D::UNSPECIFIED || !aPlotter->GetColorMode() )
 bg = COLOR4D::WHITE;
 
 if( aDimmed )
 {
 color.Desaturate( );
 color = color.Mix( bg, 0.5f );
 }
 
 aPlotter->SetColor( color );
 
 for( SCH_ITEM& item : m_drawings[ SCH_FIELD_T ] )
 {
 SCH_FIELD& field = static_cast<SCH_FIELD&>( item );
 
 if( !renderSettings->m_ShowHiddenFields && !field.IsVisible() )
 continue;
 
 // The reference is a special case: we should change the basic text
 // to add '?' and the part id
 wxString tmp = field.GetText();
 
 field.SetText( field.GetFullText( aUnit ) );
 item.Plot( aPlotter, aBackground, aPlotOpts, aUnit, aBodyStyle, aOffset, aDimmed );
 
 field.SetText( tmp );
 }
}
 
 
void LIB_SYMBOL::FixupDrawItems()
{
 std::vector<SCH_SHAPE*> potential_top_items;
 std::vector<SCH_ITEM*> bottom_items;
 
 for( SCH_ITEM& item : m_drawings )
 {
 if( item.Type() == SCH_SHAPE_T )
 {
 SCH_SHAPE& shape = static_cast<SCH_SHAPE&>( item );
 
 if( shape.GetFillMode() == FILL_T::FILLED_WITH_COLOR )
 potential_top_items.push_back( &shape );
 else
 bottom_items.push_back( &item );
 }
 else
 {
 bottom_items.push_back( &item );
 }
 }
 
 std::sort( potential_top_items.begin(), potential_top_items.end(),
 []( SCH_ITEM* a, SCH_ITEM* b )
 {
 return a->GetBoundingBox().GetArea() > b->GetBoundingBox().GetArea();
 } );
 
 for( SCH_SHAPE* item : potential_top_items )
 {
 for( SCH_ITEM* bottom_item : bottom_items )
 {
 if( item->GetBoundingBox().Contains( bottom_item->GetBoundingBox() ) )
 {
 item->SetFillMode( FILL_T::FILLED_WITH_BG_BODYCOLOR );
 break;
 }
 }
 }
}
 
 
void LIB_SYMBOL::RemoveDrawItem( SCH_ITEM* aItem )
{
 wxASSERT( aItem != nullptr );
 
 // none of the MANDATORY_FIELDS may be removed in RAM, but they may be
 // omitted when saving to disk.
 if( aItem->Type() == SCH_FIELD_T )
 {
 if( static_cast<SCH_FIELD*>( aItem )->IsMandatory() )
 return;
 }
 
 LIB_ITEMS& items = m_drawings[ aItem->Type() ];
 
 for( LIB_ITEMS::iterator i = items.begin(); i != items.end(); i++ )
 {
 if( &*i == aItem )
 {
 items.erase( i );
 break;
 }
 }
}
 
 
void LIB_SYMBOL::AddDrawItem( SCH_ITEM* aItem, bool aSort )
{
 wxCHECK( aItem, /* void */ );
 
 aItem->SetParent( this );
 
 m_drawings.push_back( aItem );
 
 if( aSort )
 m_drawings.sort();
}
 
 
std::vector<SCH_PIN*> LIB_SYMBOL::GetPins( int aUnit, int aBodyStyle ) const
{
 std::vector<SCH_PIN*> pins;
 
 /* Notes:
 * when aUnit == 0: no unit filtering
 * when aBodyStyle == 0: no body style filtering
 * when m_unit == 0, the item is common to all units
 * when m_bodyStyle == 0, the item is common to all body styles
 */
 
 LIB_SYMBOL_SPTR parent = m_parent.lock();
 const LIB_ITEMS_CONTAINER& drawItems = parent ? parent->m_drawings : m_drawings;
 
 for( const SCH_ITEM& item : drawItems[SCH_PIN_T] )
 {
 // Unit filtering:
 if( aUnit && item.m_unit && ( item.m_unit != aUnit ) )
 continue;
 
 // De Morgan variant filtering:
 if( aBodyStyle && item.m_bodyStyle && ( item.m_bodyStyle != aBodyStyle ) )
 continue;
 
 // TODO: get rid of const_cast. (It used to be a C-style cast so was less noticeable.)
 pins.push_back( const_cast<SCH_PIN*>( static_cast<const SCH_PIN*>( &item ) ) );
 }
 
 return pins;
}
 
 
std::vector<SCH_PIN*> LIB_SYMBOL::GetAllLibPins() const
{
 return GetPins( 0, 0 );
}
 
 
int LIB_SYMBOL::GetPinCount()
{
 return (int) GetPins( 0 /* all units */, 1 /* single body style */ ).size();
}
 
 
SCH_PIN* LIB_SYMBOL::GetPin( const wxString& aNumber, int aUnit, int aBodyStyle ) const
{
 for( SCH_PIN* pin : GetPins( aUnit, aBodyStyle ) )
 {
 if( aNumber == pin->GetNumber() )
 return pin;
 }
 
 return nullptr;
}
 
 
bool LIB_SYMBOL::PinsConflictWith( const LIB_SYMBOL& aOtherPart, bool aTestNums, bool aTestNames,
 bool aTestType, bool aTestOrientation, bool aTestLength ) const
{
 std::vector<SCH_PIN*> thisPinList = GetAllLibPins();
 
 for( const SCH_PIN* eachThisPin : thisPinList )
 {
 wxASSERT( eachThisPin );
 std::vector<SCH_PIN*> otherPinList = aOtherPart.GetAllLibPins();
 bool foundMatch = false;
 
 for( const SCH_PIN* eachOtherPin : otherPinList )
 {
 wxASSERT( eachOtherPin );
 
 // Same unit?
 if( eachThisPin->GetUnit() != eachOtherPin->GetUnit() )
 continue;
 
 // Same body stype?
 if( eachThisPin->GetBodyStyle() != eachOtherPin->GetBodyStyle() )
 continue;
 
 // Same position?
 if( eachThisPin->GetPosition() != eachOtherPin->GetPosition() )
 continue;
 
 // Same number?
 if( aTestNums && ( eachThisPin->GetNumber() != eachOtherPin->GetNumber() ) )
 continue;
 
 // Same name?
 if( aTestNames && ( eachThisPin->GetName() != eachOtherPin->GetName() ) )
 continue;
 
 // Same electrical type?
 if( aTestType && ( eachThisPin->GetType() != eachOtherPin->GetType() ) )
 continue;
 
 // Same orientation?
 if( aTestOrientation
 && ( eachThisPin->GetOrientation() != eachOtherPin->GetOrientation() ) )
 continue;
 
 // Same length?
 if( aTestLength && ( eachThisPin->GetLength() != eachOtherPin->GetLength() ) )
 continue;
 
 foundMatch = true;
 break; // Match found so search is complete.
 }
 
 if( !foundMatch )
 {
 // This means there was not an identical (according to the arguments)
 // pin at the same position in the other symbol.
 return true;
 }
 }
 
 // The loop never gave up, so no conflicts were found.
 return false;
}
 
 
const BOX2I LIB_SYMBOL::GetUnitBoundingBox( int aUnit, int aBodyStyle,
 bool aIgnoreHiddenFields ) const
{
 BOX2I bBox; // Start with a fresh BOX2I so the Merge algorithm works
 
 for( const SCH_ITEM& item : m_drawings )
 {
 if( item.m_unit > 0 && m_unitCount > 1 && aUnit > 0 && aUnit != item.m_unit )
 continue;
 
 if( item.m_bodyStyle > 0 && aBodyStyle > 0 && aBodyStyle != item.m_bodyStyle )
 continue;
 
 if( aIgnoreHiddenFields && item.Type() == SCH_FIELD_T )
 {
 if( !static_cast<const SCH_FIELD&>( item ).IsVisible() )
 continue;
 }
 
 bBox.Merge( item.GetBoundingBox() );
 }
 
 return bBox;
}
 
 
const BOX2I LIB_SYMBOL::GetBodyBoundingBox( int aUnit, int aBodyStyle, bool aIncludePins,
 bool aIncludePrivateItems ) const
{
 BOX2I bbox;
 
 for( const SCH_ITEM& item : m_drawings )
 {
 if( item.m_unit > 0 && aUnit > 0 && aUnit != item.m_unit )
 continue;
 
 if( item.m_bodyStyle > 0 && aBodyStyle > 0 && aBodyStyle != item.m_bodyStyle )
 continue;
 
 if( item.IsPrivate() && !aIncludePrivateItems )
 continue;
 
 if( item.Type() == SCH_FIELD_T )
 continue;
 
 if( item.Type() == SCH_PIN_T )
 {
 const SCH_PIN& pin = static_cast<const SCH_PIN&>( item );
 
 if( pin.IsVisible() )
 {
 // Note: the roots of the pins are always included for symbols that don't have
 // a well-defined body.
 
 if( aIncludePins )
 bbox.Merge( pin.GetBoundingBox( false, false, false ) );
 else
 bbox.Merge( pin.GetPinRoot() );
 }
 }
 else
 {
 bbox.Merge( item.GetBoundingBox() );
 }
 }
 
 return bbox;
}
 
 
void LIB_SYMBOL::deleteAllFields()
{
 m_drawings[ SCH_FIELD_T ].clear();
}
 
 
void LIB_SYMBOL::AddField( SCH_FIELD* aField )
{
 AddDrawItem( aField );
}
 
 
void LIB_SYMBOL::SetFields( const std::vector<SCH_FIELD>& aFieldsList )
{
 deleteAllFields();
 
 for( const SCH_FIELD& src : aFieldsList )
 {
 // drawings is a ptr_vector, new and copy an object on the heap.
 SCH_FIELD* field = new SCH_FIELD( src );
 
 field->SetParent( this );
 m_drawings.push_back( field );
 }
 
 m_drawings.sort();
}
 
 
void LIB_SYMBOL::GetFields( std::vector<SCH_FIELD*>& aList )
{
 // Grab the MANDATORY_FIELDS first, in expected order given by enum MANDATORY_FIELD_T
 for( int id = 0; id < MANDATORY_FIELDS; ++id )
 aList.push_back( GetFieldById( id ) );
 
 // Now grab all the rest of fields.
 for( SCH_ITEM& item : m_drawings[ SCH_FIELD_T ] )
 {
 SCH_FIELD* field = static_cast<SCH_FIELD*>( &item );
 
 if( !field->IsMandatory() )
 aList.push_back( field );
 }
}
 
 
void LIB_SYMBOL::GetFields( std::vector<SCH_FIELD>& aList )
{
 // Grab the MANDATORY_FIELDS first, in expected order given by enum MANDATORY_FIELD_T
 for( int id = 0; id < MANDATORY_FIELDS; ++id )
 aList.push_back( *GetFieldById( id ) );
 
 // Now grab all the rest of fields.
 for( SCH_ITEM& item : m_drawings[ SCH_FIELD_T ] )
 {
 SCH_FIELD* field = static_cast<SCH_FIELD*>( &item );
 
 if( !field->IsMandatory() )
 aList.push_back( *field );
 }
}
 
 
SCH_FIELD* LIB_SYMBOL::GetFieldById( int aId ) const
{
 for( const SCH_ITEM& item : m_drawings[ SCH_FIELD_T ] )
 {
 SCH_FIELD* field = ( SCH_FIELD* ) &item;
 
 if( field->GetId() == aId )
 return field;
 }
 
 return nullptr;
}
 
 
SCH_FIELD* LIB_SYMBOL::FindField( const wxString& aFieldName, bool aCaseInsensitive )
{
 for( SCH_ITEM& item : m_drawings[ SCH_FIELD_T ] )
 {
 if( aCaseInsensitive )
 {
 if( static_cast<SCH_FIELD*>( &item )->GetCanonicalName().Upper() == aFieldName.Upper() )
 return static_cast<SCH_FIELD*>( &item );
 }
 else
 {
 if( static_cast<SCH_FIELD*>( &item )->GetCanonicalName() == aFieldName )
 return static_cast<SCH_FIELD*>( &item );
 }
 }
 
 return nullptr;
}
 
 
const SCH_FIELD* LIB_SYMBOL::FindField( const wxString& aFieldName,
 bool aCaseInsensitive ) const
{
 for( const SCH_ITEM& item : m_drawings[ SCH_FIELD_T ] )
 {
 const SCH_FIELD& field = static_cast<const SCH_FIELD&>( item );
 
 if( aCaseInsensitive )
 {
 if( field.GetCanonicalName().Upper() == aFieldName.Upper() )
 return &field;
 }
 else
 {
 if( field.GetCanonicalName() == aFieldName )
 return &field;
 }
 }
 
 return nullptr;
}
 
 
SCH_FIELD& LIB_SYMBOL::GetValueField() const
{
 SCH_FIELD* field = GetFieldById( VALUE_FIELD );
 wxASSERT( field != nullptr );
 return *field;
}
 
 
SCH_FIELD& LIB_SYMBOL::GetReferenceField() const
{
 SCH_FIELD* field = GetFieldById( REFERENCE_FIELD );
 wxASSERT( field != nullptr );
 return *field;
}
 
 
SCH_FIELD& LIB_SYMBOL::GetFootprintField() const
{
 SCH_FIELD* field = GetFieldById( FOOTPRINT_FIELD );
 wxASSERT( field != nullptr );
 return *field;
}
 
 
SCH_FIELD& LIB_SYMBOL::GetDatasheetField() const
{
 SCH_FIELD* field = GetFieldById( DATASHEET_FIELD );
 wxASSERT( field != nullptr );
 return *field;
}
 
 
SCH_FIELD& LIB_SYMBOL::GetDescriptionField() const
{
 SCH_FIELD* field = GetFieldById( DESCRIPTION_FIELD );
 wxASSERT( field != nullptr );
 return *field;
}
 
 
wxString LIB_SYMBOL::GetPrefix()
{
 wxString refDesignator = GetFieldById( REFERENCE_FIELD )->GetText();
 
 refDesignator.Replace( wxS( "~" ), wxS( " " ) );
 
 wxString prefix = refDesignator;
 
 while( prefix.Length() )
 {
 wxUniCharRef last = prefix.Last();
 
 if( ( last >= '0' && last <= '9' ) || last == '?' || last == '*' )
 prefix.RemoveLast();
 else
 break;
 }
 
 // Avoid a prefix containing trailing/leading spaces
 prefix.Trim( true );
 prefix.Trim( false );
 
 return prefix;
}
 
 
void LIB_SYMBOL::RunOnChildren( const std::function<void( SCH_ITEM* )>& aFunction )
{
 for( SCH_ITEM& item : m_drawings )
 aFunction( &item );
}
 
 
int LIB_SYMBOL::UpdateFieldOrdinals()
{
 int retv = 0;
 int lastOrdinal = MANDATORY_FIELDS;
 
 for( SCH_ITEM& item : m_drawings[ SCH_FIELD_T ] )
 {
 SCH_FIELD* field = static_cast<SCH_FIELD*>( &item );
 
 // Mandatory fields were already resolved always have the same ordinal values.
 if( field->IsMandatory() )
 continue;
 
 if( field->GetId() != lastOrdinal )
 {
 field->SetId( lastOrdinal );
 retv += 1;
 }
 
 lastOrdinal += 1;
 }
 
 return retv;
}
 
 
int LIB_SYMBOL::GetNextAvailableFieldId() const
{
 int retv = MANDATORY_FIELDS;
 
 while( GetFieldById( retv ) )
 retv += 1;
 
 return retv;
}
 
 
void LIB_SYMBOL::Move( const VECTOR2I& aOffset )
{
 for( SCH_ITEM& item : m_drawings )
 item.Move( aOffset );
}
 
 
bool LIB_SYMBOL::HasAlternateBodyStyle() const
{
 for( const SCH_ITEM& item : m_drawings )
 {
 if( item.m_bodyStyle > BODY_STYLE::BASE )
 return true;
 }
 
 if( LIB_SYMBOL_SPTR parent = m_parent.lock() )
 {
 for( const SCH_ITEM& item : parent->GetDrawItems() )
 {
 if( item.m_bodyStyle > BODY_STYLE::BASE )
 return true;
 }
 }
 
 return false;
}
 
 
int LIB_SYMBOL::GetMaxPinNumber() const
{
 int maxPinNumber = 0;
 LIB_SYMBOL_SPTR parent = m_parent.lock();
 const LIB_ITEMS_CONTAINER& drawItems = parent ? parent->m_drawings : m_drawings;
 
 for( const SCH_ITEM& item : drawItems[SCH_PIN_T] )
 {
 const SCH_PIN* pin = static_cast<const SCH_PIN*>( &item );
 long currentPinNumber = 0;
 
 if( pin->GetNumber().ToLong( &currentPinNumber ) )
 maxPinNumber = std::max( maxPinNumber, (int) currentPinNumber );
 }
 
 return maxPinNumber;
}
 
 
void LIB_SYMBOL::ClearTempFlags()
{
 SCH_ITEM::ClearTempFlags();
 
 for( SCH_ITEM& item : m_drawings )
 item.ClearTempFlags();
}
 
 
void LIB_SYMBOL::ClearEditFlags()
{
 SCH_ITEM::ClearEditFlags();
 
 for( SCH_ITEM& item : m_drawings )
 item.ClearEditFlags();
}
 
 
SCH_ITEM* LIB_SYMBOL::LocateDrawItem( int aUnit, int aBodyStyle, KICAD_T aType,
 const VECTOR2I& aPoint )
{
 for( SCH_ITEM& item : m_drawings )
 {
 if( ( aUnit && item.m_unit && aUnit != item.m_unit )
 || ( aBodyStyle && item.m_bodyStyle && aBodyStyle != item.m_bodyStyle )
 || ( item.Type() != aType && aType != TYPE_NOT_INIT ) )
 {
 continue;
 }
 
 if( item.HitTest( aPoint ) )
 return &item;
 }
 
 return nullptr;
}
 
 
SCH_ITEM* LIB_SYMBOL::LocateDrawItem( int aUnit, int aBodyStyle, KICAD_T aType,
 const VECTOR2I& aPoint, const TRANSFORM& aTransform )
{
 /* we use LocateDrawItem( int aUnit, int convert, KICAD_T type, const
 * VECTOR2I& pt ) to search items.
 * because this function uses DefaultTransform as orient/mirror matrix
 * we temporary copy aTransform in DefaultTransform
 */
 TRANSFORM transform = DefaultTransform;
 DefaultTransform = aTransform;
 
 SCH_ITEM* item = LocateDrawItem( aUnit, aBodyStyle, aType, aPoint );
 
 // Restore matrix
 DefaultTransform = transform;
 
 return item;
}
 
 
INSPECT_RESULT LIB_SYMBOL::Visit( INSPECTOR aInspector, void* aTestData,
 const std::vector<KICAD_T>& aScanTypes )
{
 // The part itself is never inspected, only its children
 for( SCH_ITEM& item : m_drawings )
 {
 if( item.IsType( aScanTypes ) )
 {
 if( aInspector( &item, aTestData ) == INSPECT_RESULT::QUIT )
 return INSPECT_RESULT::QUIT;
 }
 }
 
 return INSPECT_RESULT::CONTINUE;
}
 
 
void LIB_SYMBOL::SetUnitCount( int aCount, bool aDuplicateDrawItems )
{
 if( m_unitCount == aCount )
 return;
 
 if( aCount < m_unitCount )
 {
 LIB_ITEMS_CONTAINER::ITERATOR i = m_drawings.begin();
 
 while( i != m_drawings.end() )
 {
 if( i->m_unit > aCount )
 i = m_drawings.erase( i );
 else
 ++i;
 }
 }
 else if( aDuplicateDrawItems )
 {
 int prevCount = m_unitCount;
 
 // Temporary storage for new items, as adding new items directly to
 // m_drawings may cause the buffer reallocation which invalidates the
 // iterators
 std::vector<SCH_ITEM*> tmp;
 
 for( SCH_ITEM& item : m_drawings )
 {
 if( item.m_unit != 1 )
 continue;
 
 for( int j = prevCount + 1; j <= aCount; j++ )
 {
 SCH_ITEM* newItem = item.Duplicate();
 newItem->m_unit = j;
 tmp.push_back( newItem );
 }
 }
 
 for( SCH_ITEM* item : tmp )
 m_drawings.push_back( item );
 }
 
 m_drawings.sort();
 m_unitCount = aCount;
}
 
 
int LIB_SYMBOL::GetUnitCount() const
{
 if( LIB_SYMBOL_SPTR parent = m_parent.lock() )
 return parent->GetUnitCount();
 
 return m_unitCount;
}
 
 
void LIB_SYMBOL::SetHasAlternateBodyStyle( bool aHasAlternate, bool aDuplicatePins )
{
 if( aHasAlternate == HasAlternateBodyStyle() )
 return;
 
 // Duplicate items to create the converted shape
 if( aHasAlternate )
 {
 if( aDuplicatePins )
 {
 std::vector<SCH_ITEM*> tmp; // Temporarily store the duplicated pins here.
 
 for( SCH_ITEM& item : m_drawings[ SCH_PIN_T ] )
 {
 if( item.m_bodyStyle == 1 )
 {
 SCH_ITEM* newItem = item.Duplicate();
 newItem->m_bodyStyle = 2;
 tmp.push_back( newItem );
 }
 }
 
 // Transfer the new pins to the LIB_SYMBOL.
 for( SCH_ITEM* item : tmp )
 m_drawings.push_back( item );
 }
 }
 else
 {
 // Delete converted shape items because the converted shape does not exist
 LIB_ITEMS_CONTAINER::ITERATOR i = m_drawings.begin();
 
 while( i != m_drawings.end() )
 {
 if( i->m_bodyStyle > 1 )
 i = m_drawings.erase( i );
 else
 ++i;
 }
 }
 
 m_drawings.sort();
}
 
 
std::vector<SCH_ITEM*> LIB_SYMBOL::GetUnitDrawItems( int aUnit, int aBodyStyle )
{
 std::vector<SCH_ITEM*> unitItems;
 
 for( SCH_ITEM& item : m_drawings )
 {
 if( item.Type() == SCH_FIELD_T )
 continue;
 
 if( ( aBodyStyle == -1 && item.GetUnit() == aUnit )
 || ( aUnit == -1 && item.GetBodyStyle() == aBodyStyle )
 || ( aUnit == item.GetUnit() && aBodyStyle == item.GetBodyStyle() ) )
 {
 unitItems.push_back( &item );
 }
 }
 
 return unitItems;
}
 
 
std::vector<LIB_SYMBOL_UNIT> LIB_SYMBOL::GetUnitDrawItems()
{
 std::vector<LIB_SYMBOL_UNIT> units;
 
 for( SCH_ITEM& item : m_drawings )
 {
 if( item.Type() == SCH_FIELD_T )
 continue;
 
 int unit = item.GetUnit();
 int bodyStyle = item.GetBodyStyle();
 
 auto it = std::find_if( units.begin(), units.end(),
 [unit, bodyStyle]( const LIB_SYMBOL_UNIT& a )
 {
 return a.m_unit == unit && a.m_bodyStyle == bodyStyle;
 } );
 
 if( it == units.end() )
 {
 LIB_SYMBOL_UNIT newUnit;
 newUnit.m_unit = item.GetUnit();
 newUnit.m_bodyStyle = item.GetBodyStyle();
 newUnit.m_items.push_back( &item );
 units.emplace_back( newUnit );
 }
 else
 {
 it->m_items.push_back( &item );
 }
 }
 
 return units;
}
 
 
bool LIB_SYMBOL::operator==( const LIB_SYMBOL& aOther ) const
{
 if( m_libId != aOther.m_libId )
 return false;
 
 if( m_excludedFromBoard != aOther.m_excludedFromBoard )
 return false;
 
 if( m_excludedFromBOM != aOther.m_excludedFromBOM )
 return false;
 
 if( m_excludedFromSim != aOther.m_excludedFromSim )
 return false;
 
 if( m_flags != aOther.m_flags )
 return false;
 
 if( m_unitCount != aOther.m_unitCount )
 return false;
 
 if( m_pinNameOffset != aOther.m_pinNameOffset )
 return false;
 
 if( m_showPinNames != aOther.m_showPinNames )
 return false;
 
 if( m_showPinNumbers != aOther.m_showPinNumbers )
 return false;
 
 if( m_drawings.size() != aOther.m_drawings.size() )
 return false;
 
 for( auto it1 = m_drawings.begin(), it2 = aOther.m_drawings.begin();
 it1 != m_drawings.end(); ++it1, ++it2 )
 {
 if( !( *it1 == *it2 ) )
 return false;
 }
 
 const std::vector<SCH_PIN*> thisPinList = GetAllLibPins();
 const std::vector<SCH_PIN*> otherPinList = aOther.GetAllLibPins();
 
 if( thisPinList.size() != otherPinList.size() )
 return false;
 
 for( auto it1 = thisPinList.begin(), it2 = otherPinList.begin();
 it1 != thisPinList.end(); ++it1, ++it2 )
 {
 if( !( **it1 == **it2 ) )
 return false;
 }
 for( size_t ii = 0; ii < thisPinList.size(); ++ii )
 {
 if( !( *thisPinList[ii] == *otherPinList[ii] ) )
 return false;
 }
 
 return true;
}
 
 
double LIB_SYMBOL::Similarity( const SCH_ITEM& aOther ) const
{
 wxCHECK( aOther.Type() == LIB_SYMBOL_T, 0.0 );
 
 const LIB_SYMBOL& other = static_cast<const LIB_SYMBOL&>( aOther );
 double similarity = 0.0;
 int totalItems = 0;
 
 if( m_Uuid == aOther.m_Uuid )
 return 1.0;
 
 for( const SCH_ITEM& item : m_drawings )
 {
 totalItems += 1;
 double max_similarity = 0.0;
 
 for( const SCH_ITEM& otherItem : other.m_drawings )
 {
 double temp_similarity = item.Similarity( otherItem );
 max_similarity = std::max( max_similarity, temp_similarity );
 
 if( max_similarity == 1.0 )
 break;
 }
 
 similarity += max_similarity;
 }
 
 for( const SCH_PIN* pin : GetAllLibPins() )
 {
 totalItems += 1;
 double max_similarity = 0.0;
 
 for( const SCH_PIN* otherPin : other.GetAllLibPins() )
 {
 double temp_similarity = pin->Similarity( *otherPin );
 max_similarity = std::max( max_similarity, temp_similarity );
 
 if( max_similarity == 1.0 )
 break;
 }
 
 similarity += max_similarity;
 }
 
 if( totalItems == 0 )
 similarity = 0.0;
 else
 similarity /= totalItems;
 
 if( m_excludedFromBoard != other.m_excludedFromBoard )
 similarity *= 0.9;
 
 if( m_excludedFromBOM != other.m_excludedFromBOM )
 similarity *= 0.9;
 
 if( m_excludedFromSim != other.m_excludedFromSim )
 similarity *= 0.9;
 
 if( m_flags != other.m_flags )
 similarity *= 0.9;
 
 if( m_unitCount != other.m_unitCount )
 similarity *= 0.5;
 
 if( m_pinNameOffset != other.m_pinNameOffset )
 similarity *= 0.9;
 
 if( m_showPinNames != other.m_showPinNames )
 similarity *= 0.9;
 
 if( m_showPinNumbers != other.m_showPinNumbers )
 similarity *= 0.9;
 
 return similarity;
}