class MyClass(QWidget):
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
self.resize(300, 200)
# 载入进度条控件
self.verticalLayout = QVBoxLayout()
self.pgb = QProgressBar(self)
self.verticalLayout.addWidget(self.pgb, 0, 0, 1, 1)
#self.pgb.move(50, 50)
#self.pgb.resize(250, 20)
# 配置一个值表示进度条的当前进度
self.pv = 0
# 申明一个时钟控件
self.timer1 = QBasicTimer()
# 设置进度条的范围
self.pgb.setMinimum(0)
self.pgb.setMaximum(100)
self.pgb.setValue(self.pv)
# 载入按钮
self.btn = QPushButton("开始", self)
self.btn.move(50, 100)
self.btn.clicked.connect(self.myTimerState)
self.show()
def myTimerState(self):
if self.pv == 100:
self.close()
if self.timer1.isActive():
self.timer1.stop()
self.btn.setText("开始")
else:
self.timer1.start(100, self)
self.btn.setText("停止")
def timerEvent(self, e):
if self.pv == 100:
self.timer1.stop()
self.btn.setText("完成")
else:
self.pv += 1
self.pgb.setValue(self.pv)
class MyWidget(QWidget):
def __init__(self):
super().__init__()
# 设置属性
self.resize(400, 300)
self.setWindowTitle("测试Qt进度条和aria2的联合")
# 注册组件
self.labelUrl = QLabel("下载链接")
self.lineEditorUrl = QLineEdit(
"https://download.cnki.net/CAJViewer-x86_64-buildubuntu1604-210401.AppImage"
)
self.labelProgress = QLabel("下载进度")
self.downloadProgress = QProgressBar()
self.textResult = QTextBrowser()
self.buttonStart = QPushButton("开始")
self.buttonPause = QPushButton("暂停")
self.buttonUnpause = QPushButton("继续")
self.buttonRemove = QPushButton("移除")
self.buttonDebug = QPushButton("Debug")
# 设置组件
self.lineEditorUrl.setClearButtonEnabled(True)
self.buttonStart.setIcon(self.style().standardIcon(
QStyle.SP_MediaPlay))
self.buttonPause.setIcon(self.style().standardIcon(
QStyle.SP_MediaPause))
self.buttonUnpause.setIcon(self.style().standardIcon(
QStyle.SP_MediaPlay))
self.buttonRemove.setIcon(self.style().standardIcon(
QStyle.SP_MediaStop))
# self.buttonPause.setDisabled(True)
# self.buttonStop.setDisabled(True)
# 添加组件
self.layout = QGridLayout(self)
self.layout.addWidget(self.labelUrl, 0, 0, 1, 1)
self.layout.addWidget(self.lineEditorUrl, 0, 1, 1, 5)
self.layout.addWidget(self.labelProgress, 1, 0, 1, 1)
self.layout.addWidget(self.downloadProgress, 1, 1, 1, 5)
self.layout.addWidget(self.textResult, 2, 0, 2, 5)
self.layout.addWidget(self.buttonStart, 4, 0, 1, 1)
self.layout.addWidget(self.buttonPause, 4, 1, 1, 1)
self.layout.addWidget(self.buttonUnpause, 4, 2, 1, 1)
self.layout.addWidget(self.buttonRemove, 4, 3, 1, 1)
self.layout.addWidget(self.buttonDebug, 4, 4, 1, 1)
# 添加组件功能
# class函数
@Slot(str)
def updateProgress(self, value):
self.downloadProgress.setMaximum(int(value['totalLength']))
self.downloadProgress.setValue(
int(value['files'][0]['completedLength']))
if value["status"] == "complete":
self.downloadProgress.setValue(int(value['totalLength']))
shutdown_aria2 = Signal()
@Slot()
def clearProgress(self):
self.downloadProgress.setValue(0)
def closeEvent(self, event):
if QMessageBox.question(self, "退出程序", "确定退出吗？") == QMessageBox.No:
event.ignore()
else:
event.accept()
self.shutdown_aria2.emit()
def paintEvent(self, event: PySide6.QtGui.QPaintEvent) -> None:
painter = QPainter(self)
pixmap = self.movie.currentPixmap()
pixmap = pixmap.scaled(self.my_size)
painter.drawPixmap(0, 0, pixmap)
if __name__ == '__main__':
app = QApplication()
progressbar_value = 30
path_to_gif = 'loading_gifs/1.gif'
splash = MovieSplashScreen(path_to_gif)
progressbar = QProgressBar(splash)
progressbar.setMaximum(progressbar_value)
progressbar.setTextVisible(False)
progressbar.setGeometry(0,
splash.my_size.height() - 50,
splash.my_size.width(), 20)
splash.show()
for i in range(progressbar_value):
progressbar.setValue(i)
t = time.time()
while time.time() < t + 0.1:
app.processEvents()
time.sleep(1)
class ProgressBar(QWidget):
# Incoming progress updates
set_progress = Signal(int)
def __init__(self, show_time=True):
"""Opens a progress bar widget
:type show_time: bool
:param show_time: If the time should be shown below the progress bar"""
super().__init__()
# Setup parameters
self._show_time: bool = show_time
self._timer_start: float = 0
# General layout
self.setSizePolicy(QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Fixed)
self._layout = QVBoxLayout()
self.setLayout(self._layout)
# The progress bar itself
self._progress_bar = QProgressBar(self)
self._progress_bar.setMaximum(100)
self._progress_bar.setGeometry(0, 0, 350, 25)
self._progress_bar.setValue(0)
self._layout.addWidget(self._progress_bar)
# Setup time display
self._time_wrapper = QHBoxLayout()
self._time_expired_label = QLabel("")
self._time_expired_label.setSizePolicy(QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Fixed)
self._time_left_label = QLabel("")
self._time_left_label.setSizePolicy(QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Fixed)
self._time_wrapper.addWidget(self._time_expired_label)
self._time_wrapper.addWidget(self._time_left_label)
self._layout.addLayout(self._time_wrapper)
# Set Size
self.resize(500, 80)
# Register progress update handler
# noinspection PyUnresolvedReferences
self.set_progress.connect(self._set_progress)
def startTimer(self):
"""Start the internal timer"""
self._timer_start = timeit.default_timer()
def _set_progress(self, percentage_done):
"""Handle incoming progress updates
:type percentage_done: int
:param percentage_done: The progress to set, from 0 to 100
"""
self._progress_bar.setValue(percentage_done)
if self._show_time:
time_elapsed, time_remaining = self._get_progress_times(percentage_done)
self._time_expired_label.setText("Time elapsed: " + str(time_elapsed) + "s")
self._time_left_label.setText("Time remaining: " + str(time_remaining) + "s")
def _get_progress_times(self, percentage_done):
"""Get the elapsed and remaining time
:type percentage_done: float
:param percentage_done: How much progress has been made
:return float, float: Time elapsed, Time remaining"""
time_elapsed = math.floor(timeit.default_timer() - self._timer_start)
if 0 == percentage_done:
percentage_done = 1
time_remaining = math.floor(time_elapsed * (100 / percentage_done)) - time_elapsed
return time_elapsed, time_remaining
def close_with_delay(self):
"""Close the progress bar widget with a short delay"""
sleep(0.8)
self.close()