Fix several Eagle schematic import issues.

Fix broken arc angle polarity due to library symbol changes.

Fix broken wire and text Y axis coordinate polarity due to library symbol
changes.

Fix broken field visibility and position on library symbols with multiple
units that have fields with different visibility and positions.  Because
KiCad does not support this, when parsing the Eagle schematic file, the
last library symbol unit parsed ends up being the field visibility and
position for all units in the symbol.

common/io/eagle/eagle_parser.cpp

@@ -1739,7 +1739,10 @@ EDEVICE_SET::EDEVICE_SET( wxXmlNode* aDeviceSet, IO_BASE* aIo ) :
         else if( child->GetName() == "gates" )
         {
             for( wxXmlNode* gate = child->GetChildren(); gate; gate = gate->GetNext() )
-                gates.emplace_back( std::make_unique<EGATE>( gate, aIo ) );
+            {
+                std::unique_ptr<EGATE> tmp = std::make_unique<EGATE>( gate, aIo );
+                gates[tmp->name] = std::move( tmp );
+            }
 
             AdvanceProgressPhase();
         }

common/io/eagle/eagle_parser.h

@@ -1600,10 +1600,10 @@ struct EDEVICE_SET : public EAGLE_BASE
     opt_int      library_version;
     opt_bool     library_locally_modified;
 
-    std::optional<EDESCRIPTION>           description;
+    std::optional<EDESCRIPTION>                description;
-    std::vector<std::unique_ptr<EGATE>>   gates;
+    std::map<wxString, std::unique_ptr<EGATE>> gates;
-    std::vector<std::unique_ptr<EDEVICE>> devices;
+    std::vector<std::unique_ptr<EDEVICE>>      devices;
-    std::optional<ESPICE>                 spice;
+    std::optional<ESPICE>                      spice;
 
     EDEVICE_SET( wxXmlNode* aDeviceSet, IO_BASE* aIo = nullptr );
 };

eeschema/sch_io/eagle/sch_io_eagle.cpp

@@ -1846,12 +1846,15 @@ void SCH_IO_EAGLE::loadInstance( const std::unique_ptr<EINSTANCE>& aInstance,
 
     SCH_FIELD* referenceField = symbol->GetField( REFERENCE_FIELD );
     referenceField->SetText( reference );
-    referenceField->SetVisible( part->GetFieldById( REFERENCE_FIELD )->IsVisible() );
 
     SCH_FIELD* valueField = symbol->GetField( VALUE_FIELD );
     bool       userValue = m_userValue.at( libIdSymbolName );
 
-    valueField->SetVisible( part->GetFieldById( VALUE_FIELD )->IsVisible() );
+    if( part->GetUnitCount() > 1 )
+    {
+        getEagleSymbolFieldAttributes( aInstance, wxS( ">NAME" ), referenceField );
+        getEagleSymbolFieldAttributes( aInstance, wxS( ">VALUE" ), valueField );
+    }
 
     if( epart->value && !epart->value.CGet().IsEmpty() )
     {
@@ -1941,7 +1944,7 @@ void SCH_IO_EAGLE::loadInstance( const std::unique_ptr<EINSTANCE>& aInstance,
             int reldegrees = ( absdegrees - rotation + 360.0 );
             reldegrees %= 360;
 
-            eagleToKicadAlignment( (EDA_TEXT*) field, align, reldegrees, mirror, spin, absdegrees );
+            eagleToKicadAlignment( field, align, reldegrees, mirror, spin, absdegrees );
         }
     }
 
@@ -2029,7 +2032,7 @@ EAGLE_LIBRARY* SCH_IO_EAGLE::loadLibrary( const ELIBRARY* aLibrary, EAGLE_LIBRAR
             int  gateindex = 1;
             bool ispower   = false;
 
-            for( const std::unique_ptr<EGATE>& egate : edeviceset->gates )
+            for( const auto& [gateName, egate] : edeviceset->gates )
             {
                 const auto it = aLibrary->symbols.find( egate->symbol );
 
@@ -2303,9 +2306,9 @@ SCH_ITEM* SCH_IO_EAGLE::loadSymbolWire( std::unique_ptr<LIB_SYMBOL>& aSymbol,
     VECTOR2I begin, end;
 
     begin.x = aWire->x1.ToSchUnits();
-    begin.y = aWire->y1.ToSchUnits();
+    begin.y = -aWire->y1.ToSchUnits();
     end.x   = aWire->x2.ToSchUnits();
-    end.y   = aWire->y2.ToSchUnits();
+    end.y   = -aWire->y2.ToSchUnits();
 
     if( begin == end )
         return nullptr;
@@ -2337,7 +2340,7 @@ SCH_ITEM* SCH_IO_EAGLE::loadSymbolWire( std::unique_ptr<LIB_SYMBOL>& aSymbol,
 
         arc->SetCenter( center );
         arc->SetStart( begin );
-        arc->SetArcAngleAndEnd( EDA_ANGLE( *aWire->curve, DEGREES_T ), true );
+        arc->SetArcAngleAndEnd( EDA_ANGLE( *aWire->curve * -1, DEGREES_T ), true );
         arc->SetUnit( aGateNumber );
 
         return arc;
@@ -2483,7 +2486,7 @@ SCH_TEXT* SCH_IO_EAGLE::loadSymbolText( std::unique_ptr<LIB_SYMBOL>& aSymbol,
 
     libtext->SetParent( aSymbol.get() );
     libtext->SetUnit( aGateNumber );
-    libtext->SetPosition( VECTOR2I( aText->x.ToSchUnits(), aText->y.ToSchUnits() ) );
+    libtext->SetPosition( VECTOR2I( aText->x.ToSchUnits(), -aText->y.ToSchUnits() ) );
 
     const wxString&   eagleText = aText->text;
     wxString          adjustedText;
@@ -3421,3 +3424,70 @@ wxString SCH_IO_EAGLE::translateEagleBusName( const wxString& aEagleName ) const
 
     return ret;
 }
+
+
+const ESYMBOL* SCH_IO_EAGLE::getEagleSymbol( const std::unique_ptr<EINSTANCE>& aInstance )
+{
+    wxCHECK( m_eagleDoc && m_eagleDoc->drawing && m_eagleDoc->drawing->schematic && aInstance,
+             nullptr );
+
+    std::unique_ptr<EPART>& epart = m_eagleDoc->drawing->schematic->parts[aInstance->part];
+
+    if( !epart || epart->deviceset.IsEmpty() )
+        return nullptr;
+
+    std::unique_ptr<ELIBRARY>& elibrary = m_eagleDoc->drawing->schematic->libraries[epart->library];
+
+    if( !elibrary )
+        return nullptr;
+
+    std::unique_ptr<EDEVICE_SET>& edeviceset = elibrary->devicesets[epart->deviceset];
+
+    if( !edeviceset )
+        return nullptr;
+
+    std::unique_ptr<EGATE>& egate = edeviceset->gates[aInstance->gate];
+
+    if( !egate )
+        return nullptr;
+
+    std::unique_ptr<ESYMBOL>& esymbol = elibrary->symbols[egate->symbol];
+
+    if( esymbol )
+        return esymbol.get();
+
+    return nullptr;
+}
+
+
+void SCH_IO_EAGLE::getEagleSymbolFieldAttributes( const std::unique_ptr<EINSTANCE>& aInstance,
+                                                  const wxString& aEagleFieldName,
+                                                  SCH_FIELD* aField )
+{
+    wxCHECK( aField && !aEagleFieldName.IsEmpty(), /* void */ );
+
+    const ESYMBOL* esymbol = getEagleSymbol( aInstance );
+
+    if( esymbol )
+    {
+        for( const std::unique_ptr<ETEXT>& text : esymbol->texts )
+        {
+            if( text->text == aEagleFieldName )
+            {
+                aField->SetVisible( true );
+                VECTOR2I pos( text->x.ToSchUnits() + aInstance->x.ToSchUnits(),
+                              -text->y.ToSchUnits() - aInstance->y.ToSchUnits() );
+
+                bool mirror = text->rot ? text->rot->mirror : false;
+
+                if( aInstance->rot && aInstance->rot->mirror )
+                    mirror = !mirror;
+
+                if( mirror )
+                    pos.y = -aInstance->y.ToSchUnits() + text->y.ToSchUnits();
+
+                aField->SetPosition( pos );
+            }
+        }
+    }
+}

eeschema/sch_io/eagle/sch_io_eagle.h

@@ -217,6 +217,11 @@ private:
 
     bool netHasPowerDriver( SCH_LINE* aLine, const wxString& aNetName ) const;
 
+    void getEagleSymbolFieldAttributes( const std::unique_ptr<EINSTANCE>& aInstance,
+                                        const wxString& aEagleFieldName,
+                                        SCH_FIELD* aField );
+    const ESYMBOL* getEagleSymbol( const std::unique_ptr<EINSTANCE>& aInstance );
+
     SCH_SHEET* getCurrentSheet();
     SCH_SCREEN* getCurrentScreen();