MeshPart: use of TaskDialog::addTaskBox

src/Mod/MeshPart/Gui/CrossSections.cpp

@@ -627,12 +627,7 @@ void CrossSections::makePlanes(Plane type, const std::vector<double>& d, double
 TaskCrossSections::TaskCrossSections(const Base::BoundBox3d& bb)
 {
     widget = new CrossSections(bb);
-    taskbox = new Gui::TaskView::TaskBox(Gui::BitmapFactory().pixmap("Mesh_CrossSections"),
-                                         widget->windowTitle(),
-                                         true,
-                                         nullptr);
-    taskbox->groupLayout()->addWidget(widget);
-    Content.push_back(taskbox);
+    addTaskBox(Gui::BitmapFactory().pixmap("Mesh_CrossSections"), widget, true);
 }
 
 bool TaskCrossSections::accept()

src/Mod/MeshPart/Gui/CrossSections.h

@@ -107,7 +107,6 @@ public:
 
 private:
     CrossSections* widget;
-    Gui::TaskView::TaskBox* taskbox;
 };
 
 }  // namespace MeshPartGui

src/Mod/MeshPart/Gui/TaskCurveOnMesh.cpp

@@ -97,9 +97,7 @@ void CurveOnMeshWidget::reject()
 TaskCurveOnMesh::TaskCurveOnMesh(Gui::View3DInventor* view)
 {
     widget = new CurveOnMeshWidget(view);
-    taskbox = new Gui::TaskView::TaskBox(QPixmap(), widget->windowTitle(), true, nullptr);
-    taskbox->groupLayout()->addWidget(widget);
-    Content.push_back(taskbox);
+    addTaskBox(widget);
 }
 
 bool TaskCurveOnMesh::reject()

src/Mod/MeshPart/Gui/TaskCurveOnMesh.h

@@ -80,7 +80,6 @@ public:
 
 private:
     CurveOnMeshWidget* widget;
-    Gui::TaskView::TaskBox* taskbox;
 };
 
 }  // namespace MeshPartGui

src/Mod/MeshPart/Gui/Tessellation.cpp

@@ -646,13 +646,7 @@ bool Mesh2ShapeGmsh::loadOutput()
 TaskTessellation::TaskTessellation()
 {
     widget = new Tessellation();
-    Gui::TaskView::TaskBox* taskbox =
-        new Gui::TaskView::TaskBox(QPixmap() /*Gui::BitmapFactory().pixmap("MeshPart_Mesher")*/,
-                                   widget->windowTitle(),
-                                   true,
-                                   nullptr);
-    taskbox->groupLayout()->addWidget(widget);
-    Content.push_back(taskbox);
+    addTaskBox(widget);
 }
 
 void TaskTessellation::open()