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

src/Mod/PartDesign/App/Body.h

@@ -161,7 +161,7 @@ protected:
     void onDocumentRestored() override;
 
 private:
-    boost::signals2::scoped_connection connection;
+    fastsignals::scoped_connection connection;
     bool showTip = false;
 };
 

src/Mod/PartDesign/App/ShapeBinder.h

@@ -81,7 +81,7 @@ private:
     void slotChangedObject(const App::DocumentObject& Obj, const App::Property& Prop);
     void onSettingDocument() override;
 
-    using Connection = boost::signals2::connection;
+    using Connection = fastsignals::connection;
     Connection connectDocumentChangedObject;
 };
 
@@ -168,7 +168,7 @@ protected:
 
     void slotRecomputedObject(const App::DocumentObject& Obj);
 
-    using Connection = boost::signals2::scoped_connection;
+    using Connection = fastsignals::scoped_connection;
     Connection connRecomputedObj;
     App::Document* contextDoc = nullptr;
 

src/Mod/PartDesign/Gui/TaskHoleParameters.h

@@ -144,7 +144,7 @@ private:
     void updateHoleTypeCombo();
 
 private:
-    using Connection = boost::signals2::scoped_connection;
+    using Connection = fastsignals::scoped_connection;
     Connection connectPropChanged;
 
     std::unique_ptr<Observer> observer;

src/Mod/PartDesign/Gui/TaskTransformedMessages.h

@@ -27,7 +27,7 @@
 #include <Gui/TaskView/TaskView.h>
 
 class Ui_TaskTransformedMessages;
-using Connection = boost::signals2::connection;
+using Connection = fastsignals::connection;
 
 namespace App
 {

src/Mod/PartDesign/Gui/ViewProviderTransformed.h

@@ -54,7 +54,7 @@ public:
     void setupContextMenu(QMenu*, QObject*, const char*) override;
 
     /// signals if the transformation contains errors
-    boost::signals2::signal<void(QString msg)> signalDiagnosis;
+    fastsignals::signal<void(QString msg)> signalDiagnosis;
 
     // Name of menu dialog
     QString menuName;

src/Mod/PartDesign/Gui/WorkflowManager.h

@@ -100,9 +100,9 @@ private:
 private:
     std::map<const App::Document*, Workflow> dwMap;
 
-    boost::signals2::connection connectNewDocument;
-    boost::signals2::connection connectFinishRestoreDocument;
-    boost::signals2::connection connectDeleteDocument;
+    fastsignals::connection connectNewDocument;
+    fastsignals::connection connectFinishRestoreDocument;
+    fastsignals::connection connectDeleteDocument;
 
     static WorkflowManager* _instance;
 };