[FEM] use std::unique_ptr for all dialog objects

- also fix too long line
- also further clang automatic code style changes

src/Mod/Fem/Gui/TaskDriver.cpp

@@ -32,15 +32,12 @@ using namespace FemGui;
 using namespace Gui;
 
 TaskDriver::TaskDriver(Fem::FemAnalysis* pcObject, QWidget* parent)
-    : TaskBox(Gui::BitmapFactory().pixmap("FEM_CreateNodesSet"),
-        tr("Nodes set"),
-        true,
-        parent),
-      pcObject(pcObject)
+    : TaskBox(Gui::BitmapFactory().pixmap("FEM_CreateNodesSet"), tr("Nodes set"), true, parent),
+      pcObject(pcObject),
+      ui(new Ui_TaskDriver)
 {
     // we need a separate container widget to add all controls to
     proxy = new QWidget(this);
-    ui = new Ui_TaskDriver();
     ui->setupUi(proxy);
     QMetaObject::connectSlotsByName(this);
 
@@ -48,8 +45,6 @@ TaskDriver::TaskDriver(Fem::FemAnalysis* pcObject, QWidget* parent)
 }
 
 TaskDriver::~TaskDriver()
-{
-    delete ui;
-}
+{}
 
 #include "moc_TaskDriver.cpp"