Merge pull request #19132 from tritao/base-remove-boost-signals

Base: Remove Boost-based signals and switch to `FastSignals`.

src/Mod/Assembly/App/AssemblyObject.h

@@ -256,7 +256,7 @@ public:
     {
         return lastMalformedConstraints;
     }
-    boost::signals2::signal<void()> signalSolverUpdate;
+    fastsignals::signal<void()> signalSolverUpdate;
 
 private:
     std::shared_ptr<MbD::ASMTAssembly> mbdAssembly;

src/Mod/Assembly/Gui/ViewProviderAssembly.cpp

@@ -300,9 +300,9 @@ bool ViewProviderAssembly::setEdit(int mode)
         }
 
         auto* assembly = getObject<AssemblyObject>();
-        connectSolverUpdate = assembly->signalSolverUpdate.connect(
-            boost::bind(&ViewProviderAssembly::UpdateSolverInformation, this)
-        );
+        connectSolverUpdate = assembly->signalSolverUpdate.connect([this] {
+            UpdateSolverInformation();
+        });
 
         return true;
     }

src/Mod/Assembly/Gui/ViewProviderAssembly.h

@@ -25,7 +25,7 @@
 #define ASSEMBLYGUI_VIEWPROVIDER_ViewProviderAssembly_H
 
 #include <QCoreApplication>
-#include <boost/signals2.hpp>
+#include <fastsignals/signal.h>
 
 #include <Mod/Assembly/AssemblyGlobal.h>
 
@@ -247,7 +247,7 @@ public:
     SoFieldSensor* translationSensor = nullptr;
     SoFieldSensor* rotationSensor = nullptr;
 
-    boost::signals2::signal<
+    fastsignals::signal<
         void(const QString& state, const QString& msg, const QString& url, const QString& linkText)>
         signalSetUp;
 
@@ -284,8 +284,8 @@ private:
         std::set<App::DocumentObject*>& visited
     );
 
-    boost::signals2::connection connectSolverUpdate;
-    boost::signals2::scoped_connection m_preTransactionConn;
+    fastsignals::connection connectSolverUpdate;
+    fastsignals::scoped_connection m_preTransactionConn;
 };
 
 }  // namespace AssemblyGui