UI hacking.

src/poly/ui/menu_item.h

@@ -0,0 +1,61 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2014 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef POLY_UI_MENU_ITEM_H_
+#define POLY_UI_MENU_ITEM_H_
+
+#include <memory>
+#include <vector>
+
+#include <poly/delegate.h>
+#include <poly/ui/ui_event.h>
+
+namespace poly {
+namespace ui {
+
+class Window;
+
+class MenuItem {
+ public:
+  typedef std::unique_ptr<MenuItem, void (*)(MenuItem*)> MenuItemPtr;
+
+  enum class Type {
+    kNormal,
+    kSeparator,
+  };
+
+  virtual ~MenuItem();
+
+  MenuItem* parent_item() const { return parent_item_; }
+
+  void AddChild(MenuItem* child_item);
+  void AddChild(std::unique_ptr<MenuItem> child_item);
+  void AddChild(MenuItemPtr child_item);
+  void RemoveChild(MenuItem* child_item);
+
+  poly::Delegate<UIEvent> on_selected;
+
+ protected:
+  MenuItem(Type type);
+
+  virtual void OnChildAdded(MenuItem* child_item) {}
+  virtual void OnChildRemoved(MenuItem* child_item) {}
+
+  virtual void OnSelected(UIEvent& e);
+
+ private:
+  Type type_;
+  MenuItem* parent_item_;
+  std::vector<MenuItemPtr> children_;
+};
+
+}  // namespace ui
+}  // namespace poly
+
+#endif  // POLY_UI_MENU_ITEM_H_