Power Symbols: drop requirement for invisible pins

eeschema/connection_graph.cpp

@@ -437,7 +437,7 @@ void CONNECTION_GRAPH::Reset()
     m_subgraphs.clear();
     m_driver_subgraphs.clear();
     m_sheet_to_subgraphs_map.clear();
-    m_invisible_power_pins.clear();
+    m_global_power_pins.clear();
     m_bus_alias_cache.clear();
     m_net_name_to_code_map.clear();
     m_bus_name_to_code_map.clear();
@@ -560,10 +560,9 @@ void CONNECTION_GRAPH::updateItemConnectivity( const SCH_SHEET_PATH& aSheet,
                 pin->GetDefaultNetName( aSheet );
                 pin->ConnectedItems( aSheet ).clear();
 
-                // Invisible power pins need to be post-processed later
-
-                if( pin->IsPowerConnection() && !pin->IsVisible() )
-                    m_invisible_power_pins.emplace_back( std::make_pair( aSheet, pin ) );
+                // power symbol pins need to be post-processed later
+                if( pin->IsPowerConnection() )
+                    m_global_power_pins.emplace_back( std::make_pair( aSheet, pin ) );
 
                 connection_map[ pos ].push_back( pin );
                 m_items.emplace_back( pin );
@@ -971,14 +970,16 @@ void CONNECTION_GRAPH::collectAllDriverValues()
 }
 
 
-void CONNECTION_GRAPH::generateInvisiblePinSubGraphs()
+void CONNECTION_GRAPH::generateGlobalPowerPinSubGraphs()
 {
-    // Generate subgraphs for invisible power pins.  These will be merged with other subgraphs
+    // Generate subgraphs for global power pins.  These will be merged with other subgraphs
     // on the same sheet in the next loop.
+    // These are NOT limited to power symbols, we support legacy invisible + power-in pins
+    // on non-power symbols.
 
-    std::unordered_map<int, CONNECTION_SUBGRAPH*> invisible_pin_subgraphs;
+    std::unordered_map<int, CONNECTION_SUBGRAPH*> global_power_pin_subgraphs;
 
-    for( const auto& it : m_invisible_power_pins )
+    for( const auto& it : m_global_power_pins )
     {
         SCH_SHEET_PATH sheet = it.first;
         SCH_PIN*       pin   = it.second;
@@ -1002,9 +1003,9 @@ void CONNECTION_GRAPH::generateInvisiblePinSubGraphs()
         connection->SetNetCode( code );
 
         CONNECTION_SUBGRAPH* subgraph;
-        auto                 jj = invisible_pin_subgraphs.find( code );
+        auto                 jj = global_power_pin_subgraphs.find( code );
 
-        if( jj != invisible_pin_subgraphs.end() )
+        if( jj != global_power_pin_subgraphs.end() )
         {
             subgraph = jj->second;
             subgraph->AddItem( pin );
@@ -1024,7 +1025,7 @@ void CONNECTION_GRAPH::generateInvisiblePinSubGraphs()
             m_subgraphs.push_back( subgraph );
             m_driver_subgraphs.push_back( subgraph );
 
-            invisible_pin_subgraphs[code] = subgraph;
+            global_power_pin_subgraphs[code] = subgraph;
         }
 
         connection->SetSubgraphCode( subgraph->m_code );
@@ -1410,7 +1411,7 @@ void CONNECTION_GRAPH::buildConnectionGraph( std::function<void( SCH_ITEM* )>* a
 
     collectAllDriverValues();
 
-    generateInvisiblePinSubGraphs();
+    generateGlobalPowerPinSubGraphs();
 
     PROF_TIMER proc_sub_graph( "ProcessSubGraphs" );
     processSubGraphs();
@@ -2938,13 +2939,12 @@ bool CONNECTION_GRAPH::ercCheckNoConnects( const CONNECTION_SUBGRAPH* aSubgraph
             }
         }
 
-        // Check if invisible power input pins connect to anything else via net name,
-        // but not for power symbols as the ones in the standard library all have invisible pins
-        // and we want to throw unconnected errors for those even if they are connected to other
+        // Check if power input pins connect to anything else via net name,
+        // but not for power symbols (with visible or legacy invisible pins).
+        // We want to throw unconnected errors for power symbols even if they are connected to other
         // net items by name, because usually failing to connect them graphically is a mistake
         if( pin && !has_other_connections
-                && pin->GetType() == ELECTRICAL_PINTYPE::PT_POWER_IN
-                && !pin->IsVisible()
+                && pin->IsPowerConnection()
                 && !pin->GetLibPin()->GetParent()->IsPower() )
         {
             wxString name = pin->Connection( &sheet )->Name();
@@ -2979,9 +2979,9 @@ bool CONNECTION_GRAPH::ercCheckNoConnects( const CONNECTION_SUBGRAPH* aSubgraph
         {
             for( SCH_PIN* testPin : pins )
             {
-                // We only apply this test to power symbols, because other symbols have invisible
-                // pins that are meant to be dangling, but the KiCad standard library power symbols
-                // have invisible pins that are *not* meant to be dangling.
+                // We only apply this test to power symbols, because other symbols have
+                // pins that are meant to be dangling, but the power symbols have pins
+                // that are *not* meant to be dangling.
                 if( testPin->GetLibPin()->GetParent()->IsPower()
                         && testPin->ConnectedItems( sheet ).empty()
                         && settings.IsTestEnabled( ERCE_PIN_NOT_CONNECTED ) )

eeschema/connection_graph.h

@@ -416,10 +416,10 @@ private:
     void collectAllDriverValues();
 
     /**
-     * Iterate through the invisible power pins to collect the global labels
+     * Iterate through the global power pins to collect the global labels
      * as drivers
      */
-    void generateInvisiblePinSubGraphs();
+    void generateGlobalPowerPinSubGraphs();
 
     /**
      * Process all subgraphs to assign netcodes and merge subgraphs based on labels
@@ -588,7 +588,7 @@ private:
     // Cache to lookup subgraphs in m_driver_subgraphs by sheet path
     std::unordered_map<SCH_SHEET_PATH, std::vector<CONNECTION_SUBGRAPH*>> m_sheet_to_subgraphs_map;
 
-    std::vector<std::pair<SCH_SHEET_PATH, SCH_PIN*>> m_invisible_power_pins;
+    std::vector<std::pair<SCH_SHEET_PATH, SCH_PIN*>> m_global_power_pins;
 
     std::unordered_map<wxString, std::shared_ptr<BUS_ALIAS>> m_bus_alias_cache;
 

eeschema/lib_pin.h

@@ -196,8 +196,8 @@ public:
                                 bool aIncludeElectricalType ) const;
 
     /**
-     * Return whether this pin forms an implicit power connection: i.e., is hidden
-     * and of type POWER_IN.
+     * Return whether this pin forms an implicit power connection: i.e., is part of
+     * a power symbol and of type POWER_IN.
      */
     bool IsPowerConnection() const
     {

eeschema/sch_painter.cpp

@@ -1312,12 +1312,7 @@ void SCH_PAINTER::draw( const LIB_PIN *aPin, int aLayer, bool aDimmed )
             color = getRenderColor( aPin, LAYER_HIDDEN, drawingShadows, aDimmed );
         }
         else
-        {
-            if( drawingDangling && isDangling && aPin->IsPowerConnection() )
-                drawPinDanglingSymbol( pos, color, drawingShadows, aPin->IsBrightened() );
-
             return;
-        }
     }
 
     if( drawingDangling )

eeschema/sch_plugins/altium/sch_altium_plugin.cpp

@@ -2341,10 +2341,7 @@ void SCH_ALTIUM_PLUGIN::ParsePowerPort( const std::map<wxString, wxString>& aPro
         pin->SetName( elem.text );
         pin->SetPosition( { 0, 0 } );
         pin->SetLength( 0 );
-
-        // marks the pin as a global label
         pin->SetType( ELECTRICAL_PINTYPE::PT_POWER_IN );
-        pin->SetVisible( false );
 
         VECTOR2I valueFieldPos =
                 HelperGeneratePowerPortGraphics( libSymbol, elem.style, m_reporter );

eeschema/sch_plugins/cadstar/cadstar_sch_archive_loader.cpp

@@ -1419,7 +1419,6 @@ void CADSTAR_SCH_ARCHIVE_LOADER::loadSymDefIntoLibrary( const SYMDEF_ID& aSymdef
 
         if( aSymbol->IsPower() )
         {
-            pin->SetVisible( false );
             pin->SetType( ELECTRICAL_PINTYPE::PT_POWER_IN );
             pin->SetName( aSymbol->GetName() );
         }

eeschema/symbol_checker.cpp

@@ -210,10 +210,10 @@ void CheckLibSymbol( LIB_SYMBOL* aSymbol, std::vector<wxString>& aMessages,
             aMessages.push_back( msg );
         }
 
-        if( pin->GetType() == ELECTRICAL_PINTYPE::PT_POWER_IN && pin->IsVisible() )
+        if( pin->GetType() == ELECTRICAL_PINTYPE::PT_POWER_IN && !pin->IsVisible() )
         {
             msg.Printf( _( "<b>Suspicious Power Symbol</b><br>"
-                           "Only invisible input power pins are automatically connected<br><br>" ) );
+                           "Invisible input power pins are no longer required<br><br>" ) );
             aMessages.push_back( msg );
         }
     }