completed gui

app.py

@@ -1,6 +1,5 @@
 #!/usr/bin/env python3
 
-from typing import Any, cast
 import tkinter as tk
 from tkinter import ttk, messagebox, simpledialog
 from typing import final
@@ -33,8 +32,10 @@ class SignControlGUI(tk.Tk):
         frm_devices = ttk.LabelFrame(self, text="Devices")
         frm_devices.pack(fill="both", expand=True, padx=5, pady=5)
 
-        self.lst_devices = tk.Listbox(frm_devices, height=6)
+        self.radios_frame = ttk.Frame(frm_devices)
-        self.lst_devices.pack(fill="both", expand=True, padx=5, pady=5)
+        self.radios_frame.pack(fill="both", expand=True, padx=5, pady=5)
+
+        self.selected_index = tk.IntVar(value=-1)
 
         btn_frm = ttk.Frame(frm_devices)
         btn_frm.pack(fill="both", padx=5, pady=5)
@@ -78,18 +79,11 @@ class SignControlGUI(tk.Tk):
         _ = self.bind("<Return>", lambda e: self._send_message())
 
     def _get_selection(self) -> tuple[int, NetBrite] | None:
-        sel = cast(
+        idx = self.selected_index.get()
-            tuple[int],
+        if idx == -1:
-            self.lst_devices.curselection(),  # pyright: ignore[reportUnknownMemberType]
-        )
-
-        if not sel:
             _ = messagebox.showwarning("No device", "Please select a device first.")
             return None
-
+        return idx, self.devices[idx]
-        index = sel[0]
-
-        return (index, self.devices[index])
 
     def _add_device(self):
         ip = simpledialog.askstring("Add device", "IP address:")
@@ -100,13 +94,21 @@ class SignControlGUI(tk.Tk):
     def _add_device_ip(self, ip: str):
         try:
             device = NetBrite(ip)
-
             length = len(self.devices)
-            self._reset_zone(device, length)
 
+            self._reset_zone(device)
             self.devices.append(device)
-            self.lst_devices.insert("end", f"{ip}")
+
-            self.lst_devices.selection_set(length)
+            radio = ttk.Radiobutton(
+                self.radios_frame,
+                text=ip,
+                value=length,
+                variable=self.selected_index,
+            )
+            radio.pack(anchor="w")
+
+            self.selected_index.set(length)
+
         except NetbriteConnectionException as exc:
             _ = messagebox.showerror("Connection error", str(exc))
 
@@ -114,18 +116,26 @@ class SignControlGUI(tk.Tk):
         sel = self._get_selection()
         if sel is None:
             return
+        idx, _ = sel
 
-        idx = int(sel[0])
         _ = self.devices.pop(idx)
-        self.lst_devices.delete(idx)
+
+        radio = self.radios_frame.winfo_children()[idx]
+        radio.destroy()
+
+        for new_idx, widget in enumerate(self.radios_frame.winfo_children()):
+            if isinstance(widget, ttk.Radiobutton):
+                _ = widget.configure(value=new_idx)
+
+        self.selected_index.set(
+            -1 if not self.devices else min(idx, len(self.devices) - 1)
+        )
 
     def _send_message(self):
         sel = self._get_selection()
         if sel is None:
             return
 
-        print(sel)
-
         _, dev = sel
         raw_text = self.txt.get("1.0", "end-1c").strip()
         if not raw_text:
@@ -136,22 +146,29 @@ class SignControlGUI(tk.Tk):
             dev.message(msg, DEFAULT_ZONE_NAME)
             self.txt.delete("1.0", "end")
         except NetbriteTransferException as exc:
-            _ = messagebox.showerror("Send failed", str(exc))
+            _ = messagebox.showerror(
+                "Send failed, try removing and adding the device.", str(exc)
+            )
 
     def _reset_selected_zone(self):
         sel = self._get_selection()
         if sel is None:
             return
 
-        index, dev = sel
+        _, dev = sel
-        self._reset_zone(dev, index)
+        self._reset_zone(dev)
 
-    def _reset_zone(self, device: NetBrite, index: int):
+    def _reset_zone(self, device: NetBrite):
         zone = DEFAULT_ZONE
-        message = Message("{erase}Nr. " + str(index))
+        message = Message("hello")
 
+        try:
             device.zones({DEFAULT_ZONE_NAME: zone})
             device.message(message, DEFAULT_ZONE_NAME)
+        except NetbriteTransferException as exc:
+            _ = messagebox.showerror(
+                "Send failed, try removing and adding the device.", str(exc)
+            )
 
 
 if __name__ == "__main__":