reduce explicit calls to make_unique by having app::push and options::add call it for us.

this commit doesn't change the codegen. it just cleans up the code slightly.

sphaira/include/app.hpp

@@ -18,6 +18,7 @@
 #include <string>
 #include <span>
 #include <optional>
+#include <utility>
 
 namespace sphaira {
 
@@ -58,7 +59,14 @@ public:
     static void Exit();
     static void ExitRestart();
     static auto GetVg() -> NVGcontext*;
+
     static void Push(std::unique_ptr<ui::Widget>&&);
+
+    template<ui::DerivedFromWidget T, typename... Args>
+    static void Push(Args&&... args) {
+        Push(std::make_unique<T>(std::forward<Args>(args)...));
+    }
+
     // pops all widgets above a menu
     static void PopToMenu();
 

sphaira/include/ui/sidebar.hpp

@@ -3,6 +3,8 @@
 #include "ui/widget.hpp"
 #include "ui/list.hpp"
 #include <memory>
+#include <concepts>
+#include <utility>
 
 namespace sphaira::ui {
 
@@ -15,6 +17,9 @@ protected:
     std::string m_title;
 };
 
+template<typename T>
+concept DerivedFromSidebarBase = std::is_base_of_v<SidebarEntryBase, T>;
+
 class SidebarEntryBool final : public SidebarEntryBase {
 public:
     using Callback = std::function<void(bool&)>;
@@ -110,17 +115,11 @@ public:
 
     void Add(std::unique_ptr<SidebarEntryBase>&& entry);
 
-    template<typename T>
-    void AddMove(T entry) {
-        Add(std::move(entry));
+    template<DerivedFromSidebarBase T, typename... Args>
+    void Add(Args&&... args) {
+        Add(std::make_unique<T>(std::forward<Args>(args)...));
     }
 
-    // template<typename _Tp>
-    // [[nodiscrad,gnu::always_inline]]
-    // constexpr typename std::remove_reference<_Tp>::type&&
-    // move(_Tp&& t) noexcept
-    // { return static_cast<typename std::remove_reference<_Tp>::type&&>(t); }
-
 private:
     void SetIndex(s64 index);
     void SetupButtons();

sphaira/include/ui/widget.hpp

@@ -5,6 +5,7 @@
 #include <memory>
 #include <map>
 #include <unordered_map>
+#include <concepts>
 
 namespace sphaira::ui {
 
@@ -90,4 +91,7 @@ struct Widget : public Object {
     bool m_pop{false};
 };
 
+template<typename T>
+concept DerivedFromWidget = std::is_base_of_v<Widget, T>;
+
 } // namespace sphaira::ui