rm using

GUI/View/Setup/MaskEditorToolpanel.cpp

@@ -32,15 +32,13 @@ void addSpinBox(MaskItem* mask, QFormLayout* layout, DoubleProperty& property)
     layout->addRow(property.label() + ":", spinbox);
     QObject::connect(spinbox, &DoubleSpinBox::valueChanged, [mask](double) {
         gProjectDocument.value()->setModified();
-	emit mask->maskGeometryChanged();
+        emit mask->maskGeometryChanged();
     });
 }
 
 } // namespace
 
 
-using std::function;
-
 MaskEditorToolpanel::MaskEditorToolpanel()
     : m_listView(new QListView)
     , m_maskContainerModel(nullptr)
@@ -198,8 +196,8 @@ void MaskEditorToolpanel::createMaskEditorUI()
         addSpinBox(maskItem, m_editor_layout, c->posY());
 }
 
-void MaskEditorToolpanel::addMaskCheckBox(const QString& title, function<bool()> getter,
-                                          function<void(bool)> setter)
+void MaskEditorToolpanel::addMaskCheckBox(const QString& title, std::function<bool()> getter,
+                                          std::function<void(bool)> setter)
 {
     auto* checkBox = new QCheckBox(title, m_editor_layout->parentWidget());
     checkBox->setChecked(getter());