1 files changed, 133 insertions, 0 deletions
diff --git a/examples/designer/taskmenuextension/tictactoe.py b/examples/designer/taskmenuextension/tictactoe.py
new file mode 100644
index 000000000..aa1c3158c
--- /dev/null
+++ b/examples/designer/taskmenuextension/tictactoe.py
@@ -0,0 +1,133 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+from PySide6.QtCore import Qt, QPoint, QRect, QSize, Property, Slot
+from PySide6.QtGui import QPainter, QPen
+from PySide6.QtWidgets import QWidget
+
+
+EMPTY = '-'
+CROSS = 'X'
+NOUGHT = 'O'
+DEFAULT_STATE = "---------"
+
+
+class TicTacToe(QWidget):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self._state = DEFAULT_STATE
+        self._turn_number = 0
+
+    def minimumSizeHint(self):
+        return QSize(200, 200)
+
+    def sizeHint(self):
+        return QSize(200, 200)
+
+    def setState(self, new_state):
+        self._turn_number = 0
+        self._state = DEFAULT_STATE
+        for position in range(min(9, len(new_state))):
+            mark = new_state[position]
+            if mark == CROSS or mark == NOUGHT:
+                self._turn_number += 1
+                self._change_state_at(position, mark)
+            position += 1
+        self.update()
+
+    def state(self):
+        return self._state
+
+    @Slot()
+    def clear_board(self):
+        self._state = DEFAULT_STATE
+        self._turn_number = 0
+        self.update()
+
+    def _change_state_at(self, pos, new_state):
+        self._state = (self._state[:pos] + new_state
+                       + self._state[pos + 1:])
+
+    def mousePressEvent(self, event):
+        if self._turn_number == 9:
+            self.clear_board()
+            return
+        for position in range(9):
+            cell = self._cell_rect(position)
+            if cell.contains(event.position().toPoint()):
+                if self._state[position] == EMPTY:
+                    new_state = CROSS if self._turn_number % 2 == 0 else NOUGHT
+                    self._change_state_at(position, new_state)
+                    self._turn_number += 1
+                    self.update()
+
+    def paintEvent(self, event):
+        with QPainter(self) as painter:
+            painter.setRenderHint(QPainter.Antialiasing)
+
+            painter.setPen(QPen(Qt.darkGreen, 1))
+            painter.drawLine(self._cell_width(), 0,
+                             self._cell_width(), self.height())
+            painter.drawLine(2 * self._cell_width(), 0,
+                             2 * self._cell_width(), self.height())
+            painter.drawLine(0, self._cell_height(),
+                             self.width(), self._cell_height())
+            painter.drawLine(0, 2 * self._cell_height(),
+                             self.width(), 2 * self._cell_height())
+
+            painter.setPen(QPen(Qt.darkBlue, 2))
+
+            for position in range(9):
+                cell = self._cell_rect(position)
+                if self._state[position] == CROSS:
+                    painter.drawLine(cell.topLeft(), cell.bottomRight())
+                    painter.drawLine(cell.topRight(), cell.bottomLeft())
+                elif self._state[position] == NOUGHT:
+                    painter.drawEllipse(cell)
+
+            painter.setPen(QPen(Qt.yellow, 3))
+
+            for position in range(0, 8, 3):
+                if (self._state[position] != EMPTY
+                        and self._state[position + 1] == self._state[position]
+                        and self._state[position + 2] == self._state[position]):
+                    y = self._cell_rect(position).center().y()
+                    painter.drawLine(0, y, self.width(), y)
+                    self._turn_number = 9
+
+            for position in range(3):
+                if (self._state[position] != EMPTY
+                        and self._state[position + 3] == self._state[position]
+                        and self._state[position + 6] == self._state[position]):
+                    x = self._cell_rect(position).center().x()
+                    painter.drawLine(x, 0, x, self.height())
+                    self._turn_number = 9
+
+            if (self._state[0] != EMPTY and self._state[4] == self._state[0]
+                    and self._state[8] == self._state[0]):
+                painter.drawLine(0, 0, self.width(), self.height())
+                self._turn_number = 9
+
+            if (self._state[2] != EMPTY and self._state[4] == self._state[2]
+                    and self._state[6] == self._state[2]):
+                painter.drawLine(0, self.height(), self.width(), 0)
+                self._turn_number = 9
+
+    def _cell_rect(self, position):
+        h_margin = self.width() / 30
+        v_margin = self.height() / 30
+        row = int(position / 3)
+        column = position - 3 * row
+        pos = QPoint(column * self._cell_width() + h_margin,
+                     row * self._cell_height() + v_margin)
+        size = QSize(self._cell_width() - 2 * h_margin,
+                     self._cell_height() - 2 * v_margin)
+        return QRect(pos, size)
+
+    def _cell_width(self):
+        return self.width() / 3
+
+    def _cell_height(self):
+        return self.height() / 3
+
+    state = Property(str, state, setState)