Checkpoint before more window sizing work

busy_overlay.py

@@ -0,0 +1,86 @@
+from __future__ import annotations
+
+from typing import Any
+import tkinter as tk
+
+import customtkinter as ctk
+
+from ui_theme import theme_color, theme_font, theme_padding, theme_value
+
+
+class InlineBusyOverlay:
+    """Busy overlay rendered inside the same window, avoiding extra toplevels."""
+
+    def __init__(self, parent: tk.Misc, theme_cfg: dict[str, Any] | None = None):
+        self.parent = parent
+        self.theme_cfg = theme_cfg or {}
+        self._cover: ctk.CTkFrame | None = None
+        self._label: ctk.CTkLabel | None = None
+        self._bar: ctk.CTkProgressBar | None = None
+
+    def show(self, message: str = "Attendere..."):
+        if self._cover and self._cover.winfo_exists():
+            if self._label:
+                self._label.configure(text=message)
+            try:
+                self._cover.lift()
+            except Exception:
+                pass
+            return
+
+        cover = ctk.CTkFrame(
+            self.parent,
+            corner_radius=0,
+            fg_color=theme_color(self.theme_cfg, "overlay_cover_fg_color", ("#d9d9d9", "#4a4a4a")),
+        )
+        cover.place(relx=0, rely=0, relwidth=1, relheight=1)
+        try:
+            cover.lift()
+        except Exception:
+            pass
+
+        wrap = ctk.CTkFrame(
+            cover,
+            corner_radius=int(theme_value(self.theme_cfg, "overlay_panel_corner_radius", 10)),
+            fg_color=theme_color(self.theme_cfg, "overlay_panel_fg_color", ("#f2f2f2", "#353535")),
+        )
+        wrap.place(relx=0.5, rely=0.5, anchor="center")
+
+        label = ctk.CTkLabel(
+            wrap,
+            text=message,
+            font=theme_font(self.theme_cfg, "overlay_label_font", ("Segoe UI", 11, "bold")),
+        )
+        label_pad = theme_padding(self.theme_cfg, "overlay_label_padding", (18, 14, 18, 8))
+        label.pack(padx=(label_pad[0], label_pad[2]), pady=(label_pad[1], label_pad[3]))
+
+        bar = ctk.CTkProgressBar(
+            wrap,
+            mode="indeterminate",
+            width=int(theme_value(self.theme_cfg, "overlay_progress_width", 220)),
+        )
+        bar_pad = theme_padding(self.theme_cfg, "overlay_progress_padding", (18, 0, 18, 14))
+        bar.pack(padx=(bar_pad[0], bar_pad[2]), pady=(bar_pad[1], bar_pad[3]))
+        try:
+            bar.start()
+        except Exception:
+            pass
+
+        self._cover = cover
+        self._label = label
+        self._bar = bar
+
+    def hide(self):
+        if self._bar:
+            try:
+                self._bar.stop()
+            except Exception:
+                pass
+        self._bar = None
+        self._label = None
+        if self._cover and self._cover.winfo_exists():
+            try:
+                self._cover.destroy()
+            except Exception:
+                pass
+        self._cover = None