notebookvb

SběrDatRůzné/DailySudoku/vykresli_sudoku.py

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+"""
+Vykreslí Sudoku puzzle do PDF z dat v MySQL tabulce puzzles.
+"""
+
+import json
+import os
+import sys
+from pathlib import Path
+
+sys.stdout.reconfigure(encoding="utf-8")
+sys.path.insert(0, str(Path(__file__).parent.parent.parent / "Knihovny"))
+
+from reportlab.lib import colors
+from reportlab.lib.pagesizes import A4
+from reportlab.lib.units import cm
+from reportlab.pdfbase import pdfmetrics
+from reportlab.pdfbase.ttfonts import TTFont
+from reportlab.pdfgen.canvas import Canvas
+
+from mysql_db import connect_mysql
+
+_fonts_dir = os.path.join(os.environ.get("WINDIR", r"C:\Windows"), "Fonts")
+pdfmetrics.registerFont(TTFont("Arial", os.path.join(_fonts_dir, "arial.ttf")))
+pdfmetrics.registerFont(TTFont("ArialBold", os.path.join(_fonts_dir, "arialbd.ttf")))
+
+OUTPUT = Path(__file__).parent / "test_sudoku.pdf"
+
+
+def draw_sudoku(c: Canvas, x0: float, y0: float, cell: float,
+                board: str, title: str = "", show_solution: bool = False,
+                solution: str = ""):
+    num_font = max(cell * 0.5, 7)
+    given_font = max(cell * 0.5, 7)
+    thin = 0.5
+    thick = 2.2
+
+    if title:
+        c.setFont("ArialBold", 12)
+        c.drawString(x0, y0 + 5, title)
+
+    # Bílé pozadí
+    c.setFillColor(colors.white)
+    c.rect(x0, y0 - 9 * cell, 9 * cell, 9 * cell, fill=1, stroke=0)
+
+    # Číslice
+    for i in range(81):
+        row = i // 9
+        col = i % 9
+        cx = x0 + col * cell + cell / 2
+        cy = y0 - (row + 1) * cell + cell * 0.3
+        ch = board[i]
+
+        if ch != ".":
+            c.setFillColor(colors.black)
+            c.setFont("ArialBold", given_font)
+            c.drawCentredString(cx, cy, ch)
+        elif show_solution and solution:
+            c.setFillColor(colors.Color(0.4, 0.4, 0.4))
+            c.setFont("Arial", num_font)
+            c.drawCentredString(cx, cy, solution[i])
+
+    # Tenké čáry
+    c.setStrokeColor(colors.Color(0.6, 0.6, 0.6))
+    c.setLineWidth(thin)
+    for i in range(1, 9):
+        if i % 3 == 0:
+            continue
+        c.line(x0, y0 - i * cell, x0 + 9 * cell, y0 - i * cell)
+        c.line(x0 + i * cell, y0, x0 + i * cell, y0 - 9 * cell)
+
+    # Tlusté čáry (3×3 bloky + vnější okraj)
+    c.setStrokeColor(colors.black)
+    c.setLineWidth(thick)
+    for i in range(0, 10, 3):
+        c.line(x0, y0 - i * cell, x0 + 9 * cell, y0 - i * cell)
+        c.line(x0 + i * cell, y0, x0 + i * cell, y0 - 9 * cell)
+
+
+def main():
+    conn = connect_mysql(database="puzzle")
+    cur = conn.cursor()
+    cur.execute(
+        "SELECT difficulty, puzzle, solution FROM puzzles "
+        "WHERE game_type='sudoku' AND puzzle_date='2026-05-08' "
+        "ORDER BY FIELD(difficulty, 'easy', 'medium', 'hard', 'expert') "
+        "LIMIT 1"
+    )
+    row = cur.fetchone()
+    cur.close()
+    conn.close()
+
+    if not row:
+        print("Žádná data.")
+        return
+
+    difficulty, board, solution = row
+
+    page_w, page_h = A4
+    board_cm = 11
+    cell = board_cm * cm / 9
+    board_px = 9 * cell
+
+    c = Canvas(str(OUTPUT), pagesize=A4)
+
+    # Zadání
+    x0 = (page_w - board_px) / 2
+    y0 = page_h - 2 * cm
+    draw_sudoku(c, x0, y0, cell, board,
+                f"Sudoku {difficulty.capitalize()} — 2026-05-08")
+
+    # Řešení
+    y0_sol = y0 - board_px - 3 * cm
+    draw_sudoku(c, x0, y0_sol, cell, board,
+                "Řešení", show_solution=True, solution=solution)
+
+    c.save()
+    print(f"PDF uloženo: {OUTPUT}")
+
+
+if __name__ == "__main__":
+    main()