fix:

Menu.py

@@ -1,5 +1,34 @@
 import os;
-import utils
+
+def render(pos: int, min: int, max: int, render_distance: int, elements: list):
+    start = pos - render_distance;
+    if (start < min):
+        start = min;
+    stop = pos + render_distance + 1;
+    if (stop > max):
+        stop = max;
+    i = 0;
+    y = pos - start;
+    if (y < min):
+        y = pos;
+    if (stop - start != render_distance * 2 + 1):
+        if (pos - start != render_distance):
+            stop = stop + render_distance - start - pos
+   #     elif (stop + render_distance > max):
+   #         start = start - (stop + render_distance - max) 
+    y = pos - start;
+    if (y < min):
+        y = pos;
+    return (start, stop, y);
+
+def preview_formater(title: str, body: str, size_x: int, size_y: int):
+    out: str = "";
+    out += f"┌── {title} " + "─" * (size_x - 6 - len(title))  + "┐\n"
+    lines = body.split("\n");
+    for line in lines[:size_y - 2]:
+        out += f"│ {line[: size_x - 4]}" + " " * (size_x - 3 - len(line)) + "│\n"
+    out += "└" + "─" * (size_x - 2) + "┘"
+    return (out);
 
 class Menu():
 
@@ -75,10 +104,12 @@ class Menu():
         size = os.get_terminal_size();
         size_x = size.columns;
         size_y = size.lines;
-        preview_size = int(self.preview_ratio * size_y);
+        preview_size = int(self.preview_ratio * size_y)
-        content_size = size_y - preview_size
+        content_size = size_y - preview_size - 2
         preview = self._preview(size_x, preview_size)
-        min_y, max_y, display_pos = utils.render(self.cursor_pos,
+        if (self.title != None):
+            menu += self.title[:size_x] + "\n";
+        min_y, max_y, display_pos = render(self.cursor_pos,
                                                  0,
                                                  self.size,
                                                  content_size // 2,
@@ -86,17 +117,18 @@ class Menu():
         for i, option in enumerate(self.options[min_y:max_y]):
             element = option
             if (i == display_pos):
-                min_x, max_x, display_pos_x = utils.render(self.cursor_pos_x,
+                min_x, max_x, display_pos_x = render(self.cursor_pos_x,
                                                         0,
-                                                        len(element),
+                                                        size_x,
-                                                        len(element) // 2,
+                                                        size_x // 2,
                                                         option)
                 line = self.cursor + element[min_x:max_x]
             else:
                 line = " " * len(self.cursor) + element
-            line = line + "\n"
+            line = line[:size_x - len(self.cursor)] + "\n"
             menu = menu + line;
-        self._display_screen(menu + preview)
+        menu = menu[:-1] 
+        self._display_screen(menu + "\n" + preview)
     
     def _preview(self, size_x: int, size_y: int):
         if (len(self.preview_args) < self.cursor_pos):
@@ -108,14 +140,16 @@ class Menu():
         else:
             title = self.preview_title_function(self.preview_args[self.cursor_pos])
         body = self.preview_body_function(self.preview_args[self.cursor_pos])
+        if (body == None or title == None):
+            return ("")
 
-        return (utils.preview_formater(title, body, size_x, size_y));
+        return (preview_formater(title, body, size_x, size_y));
 
 
     def _clear(self):
         UP = "\x1B[3A"
         CLR = "\x1B[0K"
-        for i in range(self._nb_printed_lines):
+        for _ in range(self._nb_printed_lines):
             print(CLR)
             print(UP)
 
@@ -164,7 +198,6 @@ class Menu():
             print('\nErr:\tcan\'t get input \nFix:\tpip install getch')
             exit()
             first_char = getch.getch()
-            print (first_char)
             if first_char == '\x1b': #arrow keys
                 a=getch.getch()
                 b=getch.getch()
@@ -173,9 +206,3 @@ class Menu():
                 return  'enter'
             if ord(first_char) == 32:
                 return  'space'
-
-def preview(lst):
-    return ("je suis la")
-
-menu = Menu("fdddddddddddddddddddddddddddddddddddddddddddddddddddddddda", preview_body_function=preview);
-menu.show()

utils.py

@@ -1,29 +0,0 @@
-def render(pos: int, min: int, max: int, render_distance: int, elements: list):
-    start = pos - render_distance;
-    if (start < min):
-        start = min;
-    stop = pos + render_distance + 1;
-    if (stop > max):
-        stop = max;
-    i = 0;
-    y = pos - start;
-    if (y < min):
-        y = pos;
-    if (stop - start != render_distance * 2 + 1):
-        if (pos - start != render_distance):
-            stop = stop + render_distance - start - pos
-   #     elif (stop + render_distance > max):
-   #         start = start - (stop + render_distance - max) 
-    y = pos - start;
-    if (y < min):
-        y = pos;
-    return (start, stop, y);
-
-def preview_formater(title: str, body: str, size_x: int, size_y: int):
-    out: str = "";
-    out += f"┌── {title} " + "─" * (size_x - 6 - len(title))  + "┐\n"
-    lines = body.split("\n");
-    for line in lines[:size_y - 2]:
-        out += f"│ {line[: size_x - 4]}" + " " * (size_x - 3 - len(line)) + "│\n"
-    out += "└" + "─" * (size_x - 2) + "┘\n"
-    return (out);