diff options
Diffstat (limited to 'examples/widgets/tutorials/cannon/t11.py')
| -rw-r--r-- | examples/widgets/tutorials/cannon/t11.py | 136 |
1 files changed, 68 insertions, 68 deletions
diff --git a/examples/widgets/tutorials/cannon/t11.py b/examples/widgets/tutorials/cannon/t11.py index 5257cbf98..ce4e4470b 100644 --- a/examples/widgets/tutorials/cannon/t11.py +++ b/examples/widgets/tutorials/cannon/t11.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. @@ -44,41 +44,45 @@ import sys import math -from PySide6 import QtCore, QtGui, QtWidgets +from PySide6.QtCore import QPoint, QRect, QTimer, Qt, Signal, Slot +from PySide6.QtGui import QColor, QFont, QPainter, QPalette, QRegion +from PySide6.QtWidgets import (QApplication, QGridLayout, QHBoxLayout, + QLCDNumber, QPushButton, QSlider, + QVBoxLayout, QWidget) + + +class LCDRange(QWidget): + + value_changed = Signal(int) -class LCDRange(QtWidgets.QWidget): - value_changed = QtCore.Signal(int) def __init__(self, parent=None): - QtWidgets.QWidget.__init__(self, parent) + super().__init__(parent) - 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.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) - 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) 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 @@ -86,27 +90,28 @@ class LCDRange(QtWidgets.QWidget): self.slider.setRange(minValue, maxValue) -class CannonField(QtWidgets.QWidget): - angle_changed = QtCore.Signal(int) - force_changed = QtCore.Signal(int) +class CannonField(QWidget): + + angle_changed = Signal(int) + force_changed = Signal(int) + 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.setPalette(QtGui.QPalette(QtGui.QColor(250, 250, 200))) + self.setPalette(QPalette(QColor(250, 250, 200))) self.setAutoFillBackground(True) def angle(self): return self._current_angle - @QtCore.Slot(int) + @Slot(int) def set_angle(self, angle): if angle < 5: angle = 5 @@ -116,21 +121,21 @@ 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._auto_shoot_timer.isActive(): return @@ -139,9 +144,9 @@ class CannonField(QtWidgets.QWidget): self._shoot_force = self._current_force self._auto_shoot_timer.start(5) - @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() @@ -149,37 +154,37 @@ class CannonField(QtWidgets.QWidget): if shot_r.x() > self.width() or shot_r.y() > self.height(): self._auto_shoot_timer.stop() 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) self.paint_cannon(painter) if self._auto_shoot_timer.isActive(): self.paint_shot(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()) - 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 @@ -188,7 +193,7 @@ 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) @@ -197,20 +202,19 @@ 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 -class MyWidget(QtWidgets.QWidget): +class MyWidget(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.set_range(5, 70) @@ -220,44 +224,40 @@ class MyWidget(QtWidgets.QWidget): cannon_field = CannonField() - self.connect(angle, QtCore.SIGNAL("valueChanged(int)"), - cannon_field.set_angle) - self.connect(cannon_field, QtCore.SIGNAL("angleChanged(int)"), - angle.set_value) + angle.value_changed.connect(cannon_field.set_angle) + cannon_field.angle_changed.connect(angle.set_value) - self.connect(force, QtCore.SIGNAL("valueChanged(int)"), - cannon_field.set_force) - self.connect(cannon_field, QtCore.SIGNAL("forceChanged(int)"), - force.set_value) + force.value_changed.connect(cannon_field.set_force) + cannon_field.force_changed.connect(force.set_value) - 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()"), cannon_field.shoot) + shoot.clicked.connect(cannon_field.shoot) - top_layout = QtWidgets.QHBoxLayout() + top_layout = QHBoxLayout() top_layout.addWidget(shoot) top_layout.addStretch(1) - 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(cannon_field, 1, 1, 2, 1) grid_layout.setColumnStretch(1, 10) - self.setLayout(grid_layout) angle.set_value(60) force.set_value(25) angle.setFocus() -app = QtWidgets.QApplication(sys.argv) -widget = MyWidget() -widget.setGeometry(100, 100, 500, 355) -widget.show() -sys.exit(app.exec_()) +if __name__ == '__main__': + app = QApplication(sys.argv) + widget = MyWidget() + widget.setGeometry(100, 100, 500, 355) + widget.show() + sys.exit(app.exec_()) |