diff options
Diffstat (limited to 'examples/widgets/tutorials/cannon/t13.py')
| -rw-r--r-- | examples/widgets/tutorials/cannon/t13.py | 214 |
1 files changed, 107 insertions, 107 deletions
diff --git a/examples/widgets/tutorials/cannon/t13.py b/examples/widgets/tutorials/cannon/t13.py index b0d56c166..9214611bd 100644 --- a/examples/widgets/tutorials/cannon/t13.py +++ b/examples/widgets/tutorials/cannon/t13.py @@ -1,7 +1,7 @@ ############################################################################# ## -## Copyright (C) 2016 The Qt Company Ltd. +## 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. @@ -45,17 +45,25 @@ import sys import math import random -from PySide6 import QtCore, QtGui, QtWidgets +from PySide6.QtCore import (QPoint, QRect, QTime, QTimer, Qt, SIGNAL, SLOT, + Signal, Slot) +from PySide6.QtGui import QColor, QFont, QPainter, QPalette, QRegion +from PySide6.QtWidgets import (QApplication, QGridLayout, QHBoxLayout, QLabel, + QLCDNumber, QPushButton, QSizePolicy, QSlider, + QVBoxLayout, QWidget) + + +class LCDRange(QWidget): + + value_changed = Signal(int) -class LCDRange(QtWidgets.QWidget): - value_changed = QtCore.Signal(int) def __init__(self, text=None, parent=None): - if isinstance(text, QtWidgets.QWidget): + if isinstance(text, QWidget): parent = text text = None - QtWidgets.QWidget.__init__(self, parent) + super().__init__(parent) self.init() @@ -63,31 +71,28 @@ class LCDRange(QtWidgets.QWidget): self.set_text(text) def init(self): - lcd = QtWidgets.QLCDNumber(2) - self.slider = QtWidgets.QSlider(QtCore.Qt.Horizontal) + lcd = QLCDNumber(2) + self.slider = QSlider(Qt.Horizontal) self.slider.setRange(0, 99) self.slider.setValue(0) - self.label = QtWidgets.QLabel() - self.label.setAlignment(QtCore.Qt.AlignHCenter | QtCore.Qt.AlignTop) - self.label.setSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Fixed) + self.label = QLabel() + self.label.setAlignment(Qt.AlignHCenter | Qt.AlignTop) + self.label.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Fixed) - self.connect(self.slider, QtCore.SIGNAL("valueChanged(int)"), - lcd, QtCore.SLOT("display(int)")) - self.connect(self.slider, QtCore.SIGNAL("valueChanged(int)"), - self, QtCore.SIGNAL("valueChanged(int)")) + self.slider.valueChanged.connect(lcd.display) + self.slider.valueChanged.connect(self.value_changed) - layout = QtWidgets.QVBoxLayout() + layout = QVBoxLayout(self) layout.addWidget(lcd) layout.addWidget(self.slider) layout.addWidget(self.label) - self.setLayout(layout) self.setFocusProxy(self.slider) def value(self): return self.slider.value() - @QtCore.Slot(int) + @Slot(int) def set_value(self, value): self.slider.setValue(value) @@ -96,7 +101,7 @@ class LCDRange(QtWidgets.QWidget): def set_range(self, minValue, maxValue): if minValue < 0 or maxValue > 99 or minValue > maxValue: - QtCore.qWarning(f"LCDRange::setRange({minValue}, {maxValue})\n" + qWarning(f"LCDRange::setRange({minValue}, {maxValue})\n" "\tRange must be 0..99\n" "\tand minValue must not be greater than maxValue") return @@ -107,33 +112,34 @@ class LCDRange(QtWidgets.QWidget): self.label.setText(text) -class CannonField(QtWidgets.QWidget): - angle_changed = QtCore.Signal(int) - force_changed = QtCore.Signal(int) - hit = QtCore.Signal() - missed = QtCore.Signal() - can_shoot = QtCore.Signal(bool) +class CannonField(QWidget): + + angle_changed = Signal(int) + force_changed = Signal(int) + hit = Signal() + missed = Signal() + can_shoot = Signal(bool) + def __init__(self, parent=None): - QtWidgets.QWidget.__init__(self, parent) + super().__init__(parent) self._current_angle = 45 self._current_force = 0 self._timer_count = 0 - self._auto_shoot_timer = QtCore.QTimer(self) - self.connect(self._auto_shoot_timer, QtCore.SIGNAL("timeout()"), - self.move_shot) + self._auto_shoot_timer = QTimer(self) + self._auto_shoot_timer.timeout.connect(self.move_shot) self._shoot_angle = 0 self._shoot_force = 0 - self.target = QtCore.QPoint(0, 0) + self.target = QPoint(0, 0) self._game_ended = False - self.setPalette(QtGui.QPalette(QtGui.QColor(250, 250, 200))) + self.setPalette(QPalette(QColor(250, 250, 200))) self.setAutoFillBackground(True) self.new_target() def angle(self): return self._current_angle - @QtCore.Slot(int) + @Slot(int) def set_angle(self, angle): if angle < 5: angle = 5 @@ -143,21 +149,21 @@ class CannonField(QtWidgets.QWidget): return self._current_angle = angle self.update() - self.emit(QtCore.SIGNAL("angleChanged(int)"), self._current_angle) + self.angle_changed.emit(self._current_angle) def force(self): return self._current_force - @QtCore.Slot(int) + @Slot(int) def set_force(self, force): if force < 0: force = 0 if self._current_force == force: return self._current_force = force - self.emit(QtCore.SIGNAL("forceChanged(int)"), self._current_force) + self.force_changed.emit(self._current_force) - @QtCore.Slot() + @Slot() def shoot(self): if self.is_shooting(): return @@ -165,17 +171,17 @@ class CannonField(QtWidgets.QWidget): self._shoot_angle = self._current_angle self._shoot_force = self._current_force self._auto_shoot_timer.start(5) - self.emit(QtCore.SIGNAL("canShoot(bool)"), False) + self.can_shoot.emit(False) first_time = True def new_target(self): if CannonField.first_time: CannonField.first_time = False - midnight = QtCore.QTime(0, 0, 0) - random.seed(midnight.secsTo(QtCore.QTime.currentTime())) + midnight = QTime(0, 0, 0) + random.seed(midnight.secsTo(QTime.currentTime())) - self.target = QtCore.QPoint(200 + random.randint(0, 190 - 1), 10 + random.randint(0, 255 - 1)) + self.target = QPoint(200 + random.randint(0, 190 - 1), 10 + random.randint(0, 255 - 1)) self.update() def set_game_over(self): @@ -191,35 +197,35 @@ class CannonField(QtWidgets.QWidget): self._auto_shoot_timer.stop() self._game_ended = False self.update() - self.emit(QtCore.SIGNAL("canShoot(bool)"), True) + self.can_shoot.emit(True) - @QtCore.Slot() + @Slot() def move_shot(self): - region = QtGui.QRegion(self.shot_rect()) + region = QRegion(self.shot_rect()) self._timer_count += 1 shot_r = self.shot_rect() if shot_r.intersects(self.target_rect()): self._auto_shoot_timer.stop() - self.emit(QtCore.SIGNAL("hit()")) - self.emit(QtCore.SIGNAL("canShoot(bool)"), True) + self.hit.emit() + self.can_shoot.emit(True) elif shot_r.x() > self.width() or shot_r.y() > self.height(): self._auto_shoot_timer.stop() - self.emit(QtCore.SIGNAL("missed()")) - self.emit(QtCore.SIGNAL("canShoot(bool)"), True) + self.missed.emit() + self.can_shoot.emit(True) else: - region = region.united(QtGui.QRegion(shot_r)) + region = region.united(QRegion(shot_r)) self.update(region) def paintEvent(self, event): - painter = QtGui.QPainter(self) + painter = QPainter(self) if self._game_ended: - painter.setPen(QtCore.Qt.black) - painter.setFont(QtGui.QFont("Courier", 48, QtGui.QFont.Bold)) - painter.drawText(self.rect(), QtCore.Qt.AlignCenter, "Game Over") + 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(): @@ -228,30 +234,30 @@ class CannonField(QtWidgets.QWidget): self.paint_target(painter) def paint_shot(self, painter): - painter.setPen(QtCore.Qt.NoPen) - painter.setBrush(QtCore.Qt.black) + painter.setPen(Qt.NoPen) + painter.setBrush(Qt.black) painter.drawRect(self.shot_rect()) def paint_target(self, painter): - painter.setPen(QtCore.Qt.black) - painter.setBrush(QtCore.Qt.red) + painter.setPen(Qt.black) + painter.setBrush(Qt.red) painter.drawRect(self.target_rect()) - barrel_rect = QtCore.QRect(33, -4, 15, 8) + barrel_rect = QRect(33, -4, 15, 8) def paint_cannon(self, painter): - painter.setPen(QtCore.Qt.NoPen) - painter.setBrush(QtCore.Qt.blue) + painter.setPen(Qt.NoPen) + painter.setBrush(Qt.blue) painter.save() painter.translate(0, self.height()) - painter.drawPie(QtCore.QRect(-35, -35, 70, 70), 0, 90 * 16) + painter.drawPie(QRect(-35, -35, 70, 70), 0, 90 * 16) painter.rotate(-self._current_angle) painter.drawRect(CannonField.barrel_rect) painter.restore() def cannon_rect(self): - result = QtCore.QRect(0, 0, 50, 50) + result = QRect(0, 0, 50, 50) result.moveBottomLeft(self.rect().bottomLect()) return result @@ -260,7 +266,7 @@ class CannonField(QtWidgets.QWidget): time = self._timer_count / 40.0 velocity = self._shoot_force - radians = self._shoot_angle * 3.14159265 / 180 + radians = self._shoot_angle * math.pi / 180 velx = velocity * math.cos(radians) vely = velocity * math.sin(radians) @@ -269,13 +275,13 @@ class CannonField(QtWidgets.QWidget): x = x0 + velx * time y = y0 + vely * time - 0.5 * gravity * time * time - result = QtCore.QRect(0, 0, 6, 6) - result.moveCenter(QtCore.QPoint(round(x), self.height() - 1 - round(y))) + result = QRect(0, 0, 6, 6) + result.moveCenter(QPoint(round(x), self.height() - 1 - round(y))) return result def target_rect(self): - result = QtCore.QRect(0, 0, 20, 10) - result.moveCenter(QtCore.QPoint(self.target.x(), self.height() - 1 - self.target.y())) + result = QRect(0, 0, 20, 10) + result.moveCenter(QPoint(self.target.x(), self.height() - 1 - self.target.y())) return result def game_over(self): @@ -285,15 +291,14 @@ class CannonField(QtWidgets.QWidget): return self._auto_shoot_timer.isActive() -class GameBoard(QtWidgets.QWidget): +class GameBoard(QWidget): def __init__(self, parent=None): - QtWidgets.QWidget.__init__(self, parent) + super().__init__(parent) - quit = QtWidgets.QPushButton("&Quit") - quit.setFont(QtGui.QFont("Times", 18, QtGui.QFont.Bold)) + quit = QPushButton("&Quit") + quit.setFont(QFont("Times", 18, QFont.Bold)) - self.connect(quit, QtCore.SIGNAL("clicked()"), - qApp, QtCore.SLOT("quit()")) + quit.clicked.connect(qApp.quit) angle = LCDRange("ANGLE") angle.set_range(5, 70) @@ -303,37 +308,32 @@ class GameBoard(QtWidgets.QWidget): self._cannon_field = CannonField() - self.connect(angle, QtCore.SIGNAL("valueChanged(int)"), - self._cannon_field.set_angle) - self.connect(self._cannon_field, QtCore.SIGNAL("angleChanged(int)"), - angle.set_value) + angle.value_changed.connect(self._cannon_field.set_angle) + self._cannon_field.angle_changed.connect(angle.set_value) - self.connect(force, QtCore.SIGNAL("valueChanged(int)"), - self._cannon_field.set_force) - self.connect(self._cannon_field, QtCore.SIGNAL("forceChanged(int)"), - force.set_value) + force.value_changed.connect(self._cannon_field.set_force) + self._cannon_field.force_changed.connect(force.set_value) - self.connect(self._cannon_field, QtCore.SIGNAL("hit()"), self.hit) - self.connect(self._cannon_field, QtCore.SIGNAL("missed()"), self.missed) + self._cannon_field.hit.connect(self.hit) + self._cannon_field.missed.connect(self.missed) - shoot = QtWidgets.QPushButton("&Shoot") - shoot.setFont(QtGui.QFont("Times", 18, QtGui.QFont.Bold)) + shoot = QPushButton("&Shoot") + shoot.setFont(QFont("Times", 18, QFont.Bold)) - self.connect(shoot, QtCore.SIGNAL("clicked()"), self.fire) - self.connect(self._cannon_field, QtCore.SIGNAL("canShoot(bool)"), - shoot, QtCore.SLOT("setEnabled(bool)")) + shoot.clicked.connect(self.fire) + self._cannon_field.can_shoot.connect(shoot.setEnabled) - restart = QtWidgets.QPushButton("&New Game") - restart.setFont(QtGui.QFont("Times", 18, QtGui.QFont.Bold)) + restart = QPushButton("&New Game") + restart.setFont(QFont("Times", 18, QFont.Bold)) - self.connect(restart, QtCore.SIGNAL("clicked()"), self.new_game) + restart.clicked.connect(self.new_game) - self.hits = QtWidgets.QLCDNumber(2) - self._shots_left = QtWidgets.QLCDNumber(2) - hits_label = QtWidgets.QLabel("HITS") - shots_left_label = QtWidgets.QLabel("SHOTS LEFT") + self.hits = QLCDNumber(2) + self._shots_left = QLCDNumber(2) + hits_label = QLabel("HITS") + shots_left_label = QLabel("SHOTS LEFT") - top_layout = QtWidgets.QHBoxLayout() + top_layout = QHBoxLayout() top_layout.addWidget(shoot) top_layout.addWidget(self.hits) top_layout.addWidget(hits_label) @@ -342,17 +342,16 @@ class GameBoard(QtWidgets.QWidget): top_layout.addStretch(1) top_layout.addWidget(restart) - left_layout = QtWidgets.QVBoxLayout() + left_layout = QVBoxLayout() left_layout.addWidget(angle) left_layout.addWidget(force) - grid_layout = QtWidgets.QGridLayout() + grid_layout = QGridLayout(self) grid_layout.addWidget(quit, 0, 0) grid_layout.addLayout(top_layout, 0, 1) grid_layout.addLayout(left_layout, 1, 0) grid_layout.addWidget(self._cannon_field, 1, 1, 2, 1) grid_layout.setColumnStretch(1, 10) - self.setLayout(grid_layout) angle.set_value(60) force.set_value(25) @@ -360,14 +359,14 @@ class GameBoard(QtWidgets.QWidget): self.new_game() - @QtCore.Slot() + @Slot() def fire(self): if self._cannon_field.game_over() or self._cannon_field.is_shooting(): return self._shots_left.display(self._shots_left.intValue() - 1) self._cannon_field.shoot() - @QtCore.Slot() + @Slot() def hit(self): self.hits.display(self.hits.intValue() + 1) if self._shots_left.intValue() == 0: @@ -375,12 +374,12 @@ class GameBoard(QtWidgets.QWidget): else: self._cannon_field.new_target() - @QtCore.Slot() + @Slot() def missed(self): if self._shots_left.intValue() == 0: self._cannon_field.set_game_over() - @QtCore.Slot() + @Slot() def new_game(self): self._shots_left.display(15) self.hits.display(0) @@ -388,8 +387,9 @@ class GameBoard(QtWidgets.QWidget): self._cannon_field.new_target() -app = QtWidgets.QApplication(sys.argv) -board = GameBoard() -board.setGeometry(100, 100, 500, 355) -board.show() -sys.exit(app.exec_()) +if __name__ == '__main__': + app = QApplication(sys.argv) + board = GameBoard() + board.setGeometry(100, 100, 500, 355) + board.show() + sys.exit(app.exec_()) |