diff options
Diffstat (limited to 'examples/widgets/tutorials/cannon/t13.py')
| -rw-r--r-- | examples/widgets/tutorials/cannon/t13.py | 75 |
1 files changed, 18 insertions, 57 deletions
diff --git a/examples/widgets/tutorials/cannon/t13.py b/examples/widgets/tutorials/cannon/t13.py index aa00825aa..f9a771d15 100644 --- a/examples/widgets/tutorials/cannon/t13.py +++ b/examples/widgets/tutorials/cannon/t13.py @@ -1,43 +1,5 @@ - -############################################################################# -## -## Copyright (C) 2021 The Qt Company Ltd. -## Contact: http://www.qt.io/licensing/ -## -## This file is part of the Qt for Python examples of the Qt Toolkit. -## -## $QT_BEGIN_LICENSE:BSD$ -## You may use this file under the terms of the BSD license as follows: -## -## "Redistribution and use in source and binary forms, with or without -## modification, are permitted provided that the following conditions are -## met: -## * Redistributions of source code must retain the above copyright -## notice, this list of conditions and the following disclaimer. -## * Redistributions in binary form must reproduce the above copyright -## notice, this list of conditions and the following disclaimer in -## the documentation and/or other materials provided with the -## distribution. -## * Neither the name of The Qt Company Ltd nor the names of its -## contributors may be used to endorse or promote products derived -## from this software without specific prior written permission. -## -## -## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -## -## $QT_END_LICENSE$ -## -############################################################################# +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause # PySide6 tutorial 13 @@ -46,8 +8,8 @@ import sys import math import random -from PySide6.QtCore import (QPoint, QRect, QTime, QTimer, Qt, SIGNAL, SLOT, - Signal, Slot) +from PySide6.QtCore import (QPoint, QRect, QTime, QTimer, Qt, + Signal, Slot, qWarning) from PySide6.QtGui import QColor, QFont, QPainter, QPalette, QRegion from PySide6.QtWidgets import (QApplication, QGridLayout, QHBoxLayout, QLabel, QLCDNumber, QPushButton, QSizePolicy, QSlider, @@ -102,8 +64,8 @@ class LCDRange(QWidget): def set_range(self, minValue, maxValue): if minValue < 0 or maxValue > 99 or minValue > maxValue: qWarning(f"LCDRange::setRange({minValue}, {maxValue})\n" - "\tRange must be 0..99\n" - "\tand minValue must not be greater than maxValue") + "\tRange must be 0..99\n" + "\tand minValue must not be greater than maxValue") return self.slider.setRange(minValue, maxValue) @@ -220,18 +182,17 @@ class CannonField(QWidget): self.update(region) def paintEvent(self, event): - painter = QPainter(self) - - if self._game_ended: - painter.setPen(Qt.black) - painter.setFont(QFont("Courier", 48, QFont.Bold)) - painter.drawText(self.rect(), Qt.AlignCenter, "Game Over") - - self.paint_cannon(painter) - if self.is_shooting(): - self.paint_shot(painter) - if not self._game_ended: - self.paint_target(painter) + with QPainter(self) as painter: + if self._game_ended: + painter.setPen(Qt.black) + painter.setFont(QFont("Courier", 48, QFont.Bold)) + painter.drawText(self.rect(), Qt.AlignCenter, "Game Over") + + self.paint_cannon(painter) + if self.is_shooting(): + self.paint_shot(painter) + if not self._game_ended: + self.paint_target(painter) def paint_shot(self, painter): painter.setPen(Qt.NoPen) @@ -298,7 +259,7 @@ class GameBoard(QWidget): quit = QPushButton("&Quit") quit.setFont(QFont("Times", 18, QFont.Bold)) - quit.clicked.connect(qApp.quit) + quit.clicked.connect(qApp.quit) # noqa: F821 angle = LCDRange("ANGLE") angle.set_range(5, 70) |