{
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  {
   "cell_type": "markdown",
   "id": "948a3e09",
   "metadata": {},
   "source": [
    "# 17-25 · Podświetlenie zwycięskiej linii\n",
    "\n",
    "Praktyka do sekcji [„Podświetlenie zwycięskiej linii”](/pl/chapters/rozdzial-17/17-25-podsvetka-linii.html)."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "1a74a311",
   "metadata": {},
   "source": [
    "## Cel\n",
    "\n",
    "Podświetl WŁAŚNIE linię zwycięską, a nie dowolne pasujące symbole na planszy."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "a5940c4c",
   "metadata": {},
   "source": [
    "## Pro mainloop() w tym laptopie\n",
    "\n",
    "Zamiast `root.mainloop()` używany tutaj `root.update()` + `root.destroy()` jest takie, że aplikacja jest zbudowana dokładnie tak samo, tylko bez niekończącego się oczekiwania na końcu (zobacz wyjaśnienie w rozdziale 16)."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "ff45cc61",
   "metadata": {},
   "source": [
    "## Sprawa robocza"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "6abd2834",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-09-03T10:13:18.096843Z",
     "iopub.status.busy": "2026-09-03T10:13:18.096668Z",
     "iopub.status.idle": "2026-09-03T10:13:18.215764Z",
     "shell.execute_reply": "2026-09-03T10:13:18.215292Z"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "0 True\n",
      "1 True\n",
      "2 True\n",
      "3 False\n"
     ]
    }
   ],
   "source": [
    "import tkinter as tk\n",
    "\n",
    "WIN_BG = \"#D1FAE5\"\n",
    "NEUTRAL_BG = \"#FAFAFC\"\n",
    "\n",
    "root = tk.Tk()\n",
    "board = [\"X\", \"X\", \"X\", \"X\", \"\", \"\", \"\", \"\", \"\"]  # верхняя строка ПОБЕДНАЯ, четвёртый X — нет\n",
    "winning_line = (0, 1, 2)\n",
    "\n",
    "buttons = [tk.Button(root, text=board[i]) for i in range(9)]\n",
    "for i, btn in enumerate(buttons):\n",
    "    btn.config(bg=WIN_BG if i in winning_line else NEUTRAL_BG)\n",
    "root.update()\n",
    "\n",
    "for i in (0, 1, 2, 3):\n",
    "    print(i, buttons[i].cget(\"bg\") == WIN_BG)\n",
    "root.destroy()"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "0e79aa96",
   "metadata": {},
   "source": [
    "## Zadanie niezależne od zadania ★★\n",
    "\n",
    "Upewnij się, że komórka 3 (również 'X', ale nie jest częścią `winning_line`) NIE podkreślono – użycie `bg` przyciski do sprawdzenia."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "1a302b4a",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-09-03T10:13:18.217224Z",
     "iopub.status.busy": "2026-09-03T10:13:18.217023Z",
     "iopub.status.idle": "2026-09-03T10:13:18.296116Z",
     "shell.execute_reply": "2026-09-03T10:13:18.295716Z"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Клетка 3: текст 'X' | фон #FAFAFC\n",
      "Подсвечена ровно победная линия, а не все клетки с «X».\n"
     ]
    }
   ],
   "source": [
    "root = tk.Tk()\n",
    "board = [\"X\", \"X\", \"X\", \"X\", \"\", \"\", \"\", \"\", \"\"]\n",
    "winning_line = (0, 1, 2)\n",
    "\n",
    "buttons = [tk.Button(root, text=board[i]) for i in range(9)]\n",
    "for i, btn in enumerate(buttons):\n",
    "    btn.config(bg=WIN_BG if i in winning_line else NEUTRAL_BG)\n",
    "root.update()\n",
    "\n",
    "print(\"Клетка 3: текст\", repr(buttons[3].cget(\"text\")),\n",
    "      \"| фон\", buttons[3].cget(\"bg\"))\n",
    "assert buttons[3].cget(\"text\") == \"X\", \"клетка 3 тоже занята символом X\"\n",
    "assert buttons[3].cget(\"bg\") == NEUTRAL_BG, \\\n",
    "    \"но она НЕ входит в winning_line, поэтому подсвечивать её нельзя\"\n",
    "assert all(buttons[i].cget(\"bg\") == WIN_BG for i in winning_line)\n",
    "print(\"Подсвечена ровно победная линия, а не все клетки с «X».\")\n",
    "root.destroy()"
   ]
  }
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