Switch to OOP style code

include/extentions/hover.h

@@ -0,0 +1,31 @@
+#ifndef EXTENTION_HOVER_H
+#define EXTENTION_HOVER_H
+
+#include "io/sysio.h"
+#include "pch.h"
+#include "utils/utils.h"
+#include "windows/decl.h"
+
+TileRoot *init_hover();
+
+struct HoverBox : Window {
+  std::string text;
+  std::atomic<bool> is_markup;
+  uint32_t scroll_;
+  bool scroll_dirty;
+
+  HoverBox() : scroll_(0) { this->hidden = true; }
+  void clear() {
+    this->text = "";
+    this->hidden = true;
+    this->is_markup = false;
+    this->scroll_ = 0;
+    this->scroll_dirty = true;
+  }
+  void scroll(int32_t number);
+  void render(std::vector<ScreenCell> &buffer, Coord size, Coord pos) override;
+  void handle_click(KeyEvent, Coord) override { this->hidden = true; };
+  ~HoverBox() {};
+};
+
+#endif