Compiler warning cleanup (#22997)

* Part: Remove unused arguments from isLinearEdge

* Gui: For Qt 6.5 and later, use ParseOptions in xml

* Gui: Remove unused variable from fuzzyMatch()

* Sketcher: Remove unused parameter from *ReferenceSelection

* PD: Remove unused parameter from *ReferenceSelection

* Part: Rename layout to avoid conflict

* FEM: remove unused variable from handlePropertyChange

* CAM: Eliminate C++11 compiler warning by explicitly defaulting copy

src/Gui/CommandView.cpp

@@ -478,6 +478,15 @@ void StdCmdFreezeViews::onRestoreViews()
     }
 
     QDomDocument xmlDocument;
+
+#if QT_VERSION >= QT_VERSION_CHECK(6,5,0)
+    if (const auto result = xmlDocument.setContent(&file, QDomDocument::ParseOption::UseNamespaceProcessing); !result) {
+        std::cerr << "Parse error in XML content at line " << result.errorLine
+                  << ", column " << result.errorColumn << ": "
+                  << qPrintable(result.errorMessage) << std::endl;
+        return;
+    }
+#else
     QString errorStr;
     int errorLine;
     int errorColumn;
@@ -489,6 +498,7 @@ void StdCmdFreezeViews::onRestoreViews()
                   << (const char*)errorStr.toLatin1() << std::endl;
         return;
     }
+#endif
 
     // get the root element
     QDomElement root = xmlDocument.documentElement();

src/Gui/Dialogs/DlgPreferencesImp.cpp

@@ -1719,7 +1719,6 @@ bool PreferencesSearchController::fuzzyMatch(const QString& searchText, const QS
     int targetIndex = 0;
     int consecutiveMatches = 0;
     int maxConsecutive = 0;
-    int totalMatches = 0;
     int firstMatchIndex = -1;
     int lastMatchIndex = -1;
     
@@ -1730,7 +1729,6 @@ bool PreferencesSearchController::fuzzyMatch(const QString& searchText, const QS
             }
             lastMatchIndex = targetIndex;
             searchIndex++;
-            totalMatches++;
             consecutiveMatches++;
             maxConsecutive = qMax(maxConsecutive, consecutiveMatches);
     } else {

src/Gui/DocumentRecovery.cpp

@@ -566,6 +566,11 @@ DocumentRecoveryPrivate::XmlConfig DocumentRecoveryPrivate::readXmlFile(const QS
     if (!file.open(QFile::ReadOnly))
         return cfg;
 
+#if QT_VERSION >= QT_VERSION_CHECK(6,5,0)
+    if (!domDocument.setContent(&file, QDomDocument::ParseOption::UseNamespaceProcessing)) {
+        return cfg;
+    }
+#else
     QString errorStr;
     int errorLine;
     int errorColumn;
@@ -574,6 +579,7 @@ DocumentRecoveryPrivate::XmlConfig DocumentRecoveryPrivate::readXmlFile(const QS
                                 &errorColumn)) {
         return cfg;
     }
+#endif
 
     QDomElement root = domDocument.documentElement();
     if (root.tagName() != QLatin1String("AutoRecovery")) {

src/Mod/CAM/libarea/clipper.cpp

@@ -302,6 +302,8 @@ public:
         , hi(_hi)
     {}
 
+    Int128& operator=(const Int128&) = default;
+
     Int128& operator=(const long64& val)
     {
         lo = (ulong64)val;

src/Mod/Fem/Gui/TaskPostBoxes.cpp

@@ -259,7 +259,7 @@ void TaskPostWidget::updateEnumerationList(App::PropertyEnumeration& prop, QComb
     box->setCurrentIndex(index);
 }
 
-void TaskPostWidget::handlePropertyChange(const App::DocumentObject& obj, const App::Property& prop)
+void TaskPostWidget::handlePropertyChange(const App::DocumentObject&, const App::Property& prop)
 {
     if (auto postobj = m_object.get<Fem::FemPostObject>()) {
         if (&prop == &postobj->Data) {

src/Mod/Part/App/TopoShape.h

@@ -497,7 +497,7 @@ public:
     /// Checks whether the shape is a planar face
     bool isPlanar(double tol = 1.0e-7) const;   // NOLINT
     /// Check if this shape is a single linear edge, works on BSplineCurve and BezierCurve
-    bool isLinearEdge(Base::Vector3d *dir = nullptr, Base::Vector3d *base = nullptr) const;
+    bool isLinearEdge() const;
     /// Check if this shape is a single planar face, works on BSplineSurface and BezierSurface
     bool isPlanarFace(double tol=1e-7) const;   // NOLINT
     //@}

src/Mod/Part/App/TopoShapeExpansion.cpp

@@ -5322,7 +5322,7 @@ TopoShape TopoShape::splitWires(std::vector<TopoShape>* inner, SplitWireReorient
     return TopoShape {};
 }
 
-bool TopoShape::isLinearEdge(Base::Vector3d* dir, Base::Vector3d* base) const
+bool TopoShape::isLinearEdge() const
 {
     if (isNull() || getShape().ShapeType() != TopAbs_EDGE) {
         return false;

src/Mod/Part/Gui/DlgSettingsGeneral.ui

@@ -199,7 +199,7 @@
      <property name="flat">
       <bool>false</bool>
      </property>
-     <layout class="QVBoxLayout" name="verticalLayout_3">
+     <layout class="QVBoxLayout" name="verticalLayout_31">
       <item>
        <widget class="Gui::PrefCheckBox" name="checkShowFinalPreview">
         <property name="text">

src/Mod/PartDesign/Gui/TaskSketchBasedParameters.cpp

@@ -85,7 +85,7 @@ const QString TaskSketchBasedParameters::onAddSelection(const Gui::SelectionChan
     return refStr;
 }
 
-void TaskSketchBasedParameters::startReferenceSelection(App::DocumentObject* profile,
+void TaskSketchBasedParameters::startReferenceSelection(App::DocumentObject*,
                                                         App::DocumentObject* base)
 {
     const auto* bodyViewProvider = getViewObject<ViewProvider>()->getBodyViewProvider();
@@ -105,7 +105,7 @@ void TaskSketchBasedParameters::startReferenceSelection(App::DocumentObject* pro
     }
 }
 
-void TaskSketchBasedParameters::finishReferenceSelection(App::DocumentObject* profile,
+void TaskSketchBasedParameters::finishReferenceSelection(App::DocumentObject*,
                                                          App::DocumentObject* base)
 {
     if (!previouslyVisibleViewProvider) {

src/Mod/Sketcher/Gui/DrawSketchHandlerSplitting.h

@@ -195,7 +195,6 @@ private:
 
 private:
     std::vector<Base::Vector2d> EditMarkers;
-    bool mousePressed = false;
 
 public:
     std::list<Gui::InputHint> getToolHints() const override