added select channel dialog

src/util/layoutcreator.hpp

@@ -24,6 +24,11 @@ public:
         return this->item;
     }
 
+    T *operator*()
+    {
+        return this->item;
+    }
+
     T *getElement()
     {
         return this->item;
@@ -75,6 +80,15 @@ public:
         return *this;
     }
 
+    template <typename Q = T,
+              typename std::enable_if<std::is_base_of<QWidget, Q>::value, int>::type = 0>
+    LayoutCreator<T> hidden()
+    {
+        this->item->setVisible(false);
+
+        return *this;
+    }
+
     template <typename Q = T, typename T2,
               typename std::enable_if<std::is_same<QTabWidget, Q>::value, int>::type = 0>
     LayoutCreator<T2> appendTab(T2 *item, const QString &title)