small structure changes

src/app.rs

@@ -1,24 +1,18 @@
 use crossterm::terminal::{disable_raw_mode, enable_raw_mode};
 
 use crate::{
-    utils::{clear, create_frame, flush, get_term_size, hide_cursor, render_to_frame, show_cursor}, Element,
-    State, StateChanger,
+    utils::{clear, create_frame, flush, get_term_size, hide_cursor, render_to_frame, show_cursor},
+    Element, State, StateChanger,
 };
 use std::ffi::c_void;
 
-pub struct ElementWrapper<'a> {
-    element: &'a mut Box<dyn Element>,
-}
+struct ElementWrapper<'a>(&'a mut Element);
 
 impl<'a> ElementWrapper<'a> {
-    pub fn new(element: &'a mut Box<dyn Element>) -> *mut c_void {
-        Box::into_raw(Box::new(ElementWrapper { element })) as *mut c_void
-    }
-
-    pub unsafe fn from_raw(ptr: *mut c_void) -> &'a mut Box<dyn Element> {
+    pub unsafe fn from_raw(ptr: *mut c_void) -> &'a mut Element {
         assert!(!ptr.is_null(), "Pointer to ElementWrapper is null");
         let wrapper = ptr as *mut ElementWrapper;
-        (*wrapper).element
+        (*wrapper).0
     }
 }
 
@@ -56,13 +50,12 @@ pub extern "C" fn init_event(ptr: *mut c_void, state: *mut u32) {
     element.event(event, &StateChanger(state));
 }
 
-pub fn run(data: &mut Box<dyn Element>) -> bool {
+pub fn run(element: &mut Element) -> bool {
     hide_cursor();
     enable_raw_mode().unwrap();
     clear();
     unsafe {
-        let element_ptr = ElementWrapper::new(data);
-        let c = c_run(element_ptr);
+        let c = c_run(&mut ElementWrapper(element) as *mut ElementWrapper as *mut c_void);
         show_cursor();
         disable_raw_mode().unwrap();
         clear();