Restore accidentally-removed allowsSpaces architecture.

Fixes https://gitlab.com/kicad/code/kicad/issues/6252

common/validators.cpp

@@ -317,13 +317,22 @@ bool LIB_ID_VALIDATOR::Validate( wxWindow *aParent )
 
 
 NETNAME_VALIDATOR::NETNAME_VALIDATOR( wxString *aVal ) :
-         wxTextValidator()
+         wxTextValidator(),
+         m_allowSpaces( false )
 {
 }
 
 
 NETNAME_VALIDATOR::NETNAME_VALIDATOR( const NETNAME_VALIDATOR& aValidator ) :
-        wxTextValidator( aValidator )
+        wxTextValidator( aValidator ),
+        m_allowSpaces( aValidator.m_allowSpaces )
+{
+}
+
+
+NETNAME_VALIDATOR::NETNAME_VALIDATOR( bool aAllowSpaces ) :
+        wxTextValidator(),
+        m_allowSpaces( aAllowSpaces )
 {
 }
 
@@ -357,7 +366,7 @@ wxString NETNAME_VALIDATOR::IsValid( const wxString& str ) const
     if( str.Contains( '\r' ) || str.Contains( '\n' ) )
         return _( "Signal names cannot contain CR or LF characters" );
 
-    if( str.Contains( ' ' ) || str.Contains( '\t' ) )
+    if( !m_allowSpaces && ( str.Contains( ' ' ) || str.Contains( '\t' ) ) )
         return _( "Signal names cannot contain spaces" );
 
     return wxString();

eeschema/dialogs/dialog_edit_label.cpp

@@ -48,7 +48,7 @@ class SCH_TEXT;
 DIALOG_LABEL_EDITOR::DIALOG_LABEL_EDITOR( SCH_EDIT_FRAME* aParent, SCH_TEXT* aTextItem ) :
     DIALOG_LABEL_EDITOR_BASE( aParent ),
     m_textSize( aParent, m_textSizeLabel, m_textSizeCtrl, m_textSizeUnits, false ),
-    m_netNameValidator(),
+    m_netNameValidator( true ),
     m_scintillaTricks( nullptr ),
     m_helpWindow( nullptr )
 {

eeschema/sch_validators.h

@@ -81,6 +81,10 @@ public:
             NETNAME_VALIDATOR( aVal )
     { }
 
+    SCH_NETNAME_VALIDATOR( bool aAllowSpaces ) :
+            NETNAME_VALIDATOR( aAllowSpaces )
+    { }
+
     SCH_NETNAME_VALIDATOR( const SCH_NETNAME_VALIDATOR& aValidator ) :
             NETNAME_VALIDATOR( aValidator )
     { }

include/validators.h

@@ -200,6 +200,8 @@ class NETNAME_VALIDATOR : public wxTextValidator
 public:
     NETNAME_VALIDATOR( wxString *aVal = nullptr );
 
+    NETNAME_VALIDATOR( bool aAllowSpaces );
+
     NETNAME_VALIDATOR( const NETNAME_VALIDATOR& aValidator );
 
     virtual wxObject* Clone() const override { return new NETNAME_VALIDATOR( *this ); }
@@ -213,6 +215,9 @@ public:
 protected:
     // returns the error message if the contents of 'val' are invalid
     wxString IsValid( const wxString& aVal ) const override;
+
+private:
+    bool m_allowSpaces;
 };