When updating footprints indicate which were changed.

Fixes https://gitlab.com/kicad/code/kicad/issues/4203

pcbnew/dialogs/dialog_exchange_footprints.cpp

@@ -307,11 +307,10 @@ void DIALOG_EXCHANGE_FOOTPRINTS::OnOKClicked( wxCommandEvent& event )
     m_MessageWindow->Clear();
     m_MessageWindow->Flush( false );
 
-    if( processMatchingFootprints() )
-    {
-        m_parent->Compile_Ratsnest( true );
-        m_parent->GetCanvas()->Refresh();
-    }
+    processMatchingFootprints();
+
+    m_parent->Compile_Ratsnest( true );
+    m_parent->GetCanvas()->Refresh();
 
     m_MessageWindow->Flush( false );
 
@@ -319,21 +318,20 @@ void DIALOG_EXCHANGE_FOOTPRINTS::OnOKClicked( wxCommandEvent& event )
 }
 
 
-bool DIALOG_EXCHANGE_FOOTPRINTS::processMatchingFootprints()
+void DIALOG_EXCHANGE_FOOTPRINTS::processMatchingFootprints()
 {
-    bool     change = false;
     LIB_ID   newFPID;
     wxString value;
 
     if( m_parent->GetBoard()->Footprints().empty() )
-        return false;
+        return;
 
     if( !m_updateMode )
     {
         newFPID.Parse( m_newID->GetValue() );
 
         if( !newFPID.IsValid() )
-            return false;
+            return;
     }
 
     /*
@@ -349,22 +347,14 @@ bool DIALOG_EXCHANGE_FOOTPRINTS::processMatchingFootprints()
             continue;
 
         if( m_updateMode )
-        {
-            if( processFootprint( footprint, footprint->GetFPID() ) )
-                change = true;
-        }
+            processFootprint( footprint, footprint->GetFPID() );
         else
-        {
-            if( processFootprint( footprint, newFPID ) )
-                change = true;
-        }
+            processFootprint( footprint, newFPID );
     }
-
-    return change;
 }
 
 
-bool DIALOG_EXCHANGE_FOOTPRINTS::processFootprint( FOOTPRINT* aFootprint, const LIB_ID& aNewFPID )
+void DIALOG_EXCHANGE_FOOTPRINTS::processFootprint( FOOTPRINT* aFootprint, const LIB_ID& aNewFPID )
 {
     LIB_ID    oldFPID = aFootprint->GetFPID();
     wxString  msg;
@@ -372,14 +362,13 @@ bool DIALOG_EXCHANGE_FOOTPRINTS::processFootprint( FOOTPRINT* aFootprint, const
     // Load new footprint.
     if( m_updateMode )
     {
-        msg.Printf( _( "Update footprint %s from '%s' to '%s'" ),
+        msg.Printf( _( "Updated footprint %s (%s)" ) + wxS( ": " ),
                     aFootprint->GetReference(),
-                    oldFPID.Format().c_str(),
-                    aNewFPID.Format().c_str() );
+                    oldFPID.Format().c_str() );
     }
     else
     {
-        msg.Printf( _( "Change footprint %s from '%s' to '%s'" ),
+        msg.Printf( _( "Changed footprint %s from '%s' to '%s'" ) + wxS( ": " ),
                     aFootprint->GetReference(),
                     oldFPID.Format().c_str(),
                     aNewFPID.Format().c_str() );
@@ -389,11 +378,21 @@ bool DIALOG_EXCHANGE_FOOTPRINTS::processFootprint( FOOTPRINT* aFootprint, const
 
     if( !newFootprint )
     {
-        msg << ": " << _( "*** footprint not found ***" );
+        msg += _( "*** library footprint not found ***" );
         m_MessageWindow->Report( msg, RPT_SEVERITY_ERROR );
-        return false;
+        return;
+    }
+
+    if( m_updateMode && !aFootprint->FootprintNeedsUpdate( newFootprint ) )
+    {
+        msg += _( ": (no changes)" );
+        m_MessageWindow->Report( msg, RPT_SEVERITY_INFO );
+        return;
     }
 
+    msg += _( ": OK" );
+    m_MessageWindow->Report( msg, RPT_SEVERITY_ACTION );
+
     m_parent->ExchangeFootprint( aFootprint, newFootprint, m_commit,
                                  m_removeExtraBox->GetValue(),
                                  m_resetTextItemLayers->GetValue(),
@@ -404,10 +403,7 @@ bool DIALOG_EXCHANGE_FOOTPRINTS::processFootprint( FOOTPRINT* aFootprint, const
     if( aFootprint == m_currentFootprint )
         m_currentFootprint = newFootprint;
 
-    msg += ": OK";
-    m_MessageWindow->Report( msg, RPT_SEVERITY_ACTION );
-
-    return true;
+    return;
 }
 
 

pcbnew/dialogs/dialog_exchange_footprints.h

@@ -53,8 +53,8 @@ private:
     wxRadioButton* getRadioButtonForMode();
 
     bool isMatch( FOOTPRINT* );
-    bool processMatchingFootprints();
-    bool processFootprint( FOOTPRINT* aFootprint, const LIB_ID& aNewFPID );
+    void processMatchingFootprints();
+    void processFootprint( FOOTPRINT* aFootprint, const LIB_ID& aNewFPID );
 
     BOARD_COMMIT    m_commit;
     PCB_EDIT_FRAME* m_parent;

pcbnew/pcb_edit_frame.h

@@ -537,6 +537,8 @@ public:
                             bool resetTextEffects = true, bool resetFabricationAttrs = true,
                             bool reset3DModels = true );
 
+    bool FootprintMatchesLibrary();
+
     /**
      * Install the corresponding dialog editor for the given item.
      *