class FaderWidget(QLabel):
"""Custom Placeholder Fading Widget for tabs on TabWidget."""
def __init__(self, parent):
"""Init class."""
super(FaderWidget, self).__init__(parent)
self.timeline, self.opacity, self.old_pic = QTimeLine(), 1.0, None
self.timeline.valueChanged.connect(self.animate)
self.timeline.finished.connect(self.close)
self.timeline.setDuration(750) # 500 ~ 750 Ms is Ok, Not more.
def paintEvent(self, event):
"""Overloaded paintEvent to set opacity and pic."""
painter = QPainter(self)
painter.setOpacity(self.opacity)
if self.old_pic:
painter.drawPixmap(0, 0, self.old_pic)
def animate(self, value):
"""Animation of Opacity."""
self.opacity = 1.0 - value
return self.hide() if self.opacity < 0.1 else self.repaint()
def fade(self, old_pic, old_geometry, move_to):
"""Fade from previous tab to new tab."""
if self.isVisible():
self.close()
if self.timeline.state():
self.timeline.stop()
self.setGeometry(old_geometry)
self.move(1, move_to)
self.old_pic = old_pic
self.timeline.start()
self.show()
class CCountUp(QLabel):
def __init__(self, *args, **kwargs):
super(CCountUp, self).__init__(*args, **kwargs)
self.isFloat = False # 是否是小数
font = self.font() or QFont()
font.setBold(True)
self.setFont(font)
self.timeline = QTimeLine(6000, self)
self.timeline.setEasingCurve(QEasingCurve.OutExpo)
self.timeline.frameChanged.connect(self.onFrameChanged)
def pause(self):
"""暂停
"""
self.timeline.setPaused(True)
def resume(self):
"""继续
"""
self.timeline.resume()
def isPaused(self):
"""是否暂停
"""
return self.timeline.state() == QTimeLine.Paused
def reset(self):
"""重置
"""
self.timeline.stop()
self.isFloat = False # 是否是小数
self.setText('0')
def onFrameChanged(self, value):
if self.isFloat:
value = round(value / 100.0 + 0.00001, 2)
value = str(format(value, ','))
self.setText(value + '0' if value.endswith('.0') else value)
def setDuration(self, duration):
"""设置动画持续时间
:param duration:
"""
self.timeline.setDuration(duration)
def setNum(self, number):
"""设置数字
:param number: int or float
"""
if isinstance(number, int):
self.isFloat = False
self.timeline.setFrameRange(0, number)
elif isinstance(number, float):
self.isFloat = True
self.timeline.setFrameRange(0, number * 100)
self.timeline.stop()
self.setText('0')
self.timeline.start()
class TimedProgressBar(QProgressBar):
"""A QProgressBar showing a certain time elapse."""
hideOnTimeout = True
def __init__(self, parent=None):
super(TimedProgressBar, self).__init__(parent, minimum=0, maximum=100)
self._timeline = QTimeLine(updateInterval=100,
frameChanged=self.setValue)
self._timeline.setFrameRange(0, 100)
self._hideTimer = QTimer(timeout=self._done,
singleShot=True,
interval=3000)
def start(self, total, elapsed=0.0):
"""Starts showing progress.
total is the number of seconds (maybe float) the timeline will last,
elapsed (defaulting to 0) is the value to start with.
"""
self._hideTimer.stop()
self._timeline.stop()
self._timeline.setDuration(total * 1000)
self._timeline.setCurrentTime(elapsed * 1000)
self.setValue(self._timeline.currentFrame())
self._timeline.resume()
if self.hideOnTimeout:
self.show()
def stop(self, showFinished=True):
"""Ends the progress display.
If showFinished is True (the default), 100% is shown for a few
seconds and then the progress is reset.
The progressbar is hidden if the hideOnTimeout attribute is True.
"""
self._hideTimer.stop()
self._timeline.stop()
if showFinished:
self.setValue(100)
self._hideTimer.start()
else:
self._done()
def _done(self):
if self.hideOnTimeout:
self.hide()
self.reset()
class MyView(QGraphicsView):
def __init__(self):
super().__init__()
self.initView()
self.setupScene()
self.setupAnimation()
self.setGeometry(300, 150, 250, 250)
def initView(self):
self.setWindowTitle("Progress meter")
self.setRenderHint(QPainter.Antialiasing)
policy = Qt.ScrollBarAlwaysOff
self.setVerticalScrollBarPolicy(policy)
self.setHorizontalScrollBarPolicy(policy)
self.setBackgroundBrush(self.palette().window())
self.pm = ProgressMeter(self)
self.pm.setPos(55, 55)
def setupScene(self):
self.scene = QGraphicsScene(self)
self.scene.setSceneRect(0, 0, 250, 250)
self.scene.addItem(self.pm)
self.setScene(self.scene)
def setupAnimation(self):
self.timer = QTimeLine()
self.timer.setLoopCount(0)
self.timer.setFrameRange(0, 100)
self.timer.frameChanged[int].connect(self.doStep)
self.timer.start()
def doStep(self, i):
if not self.pm.increment():
self.timer.stop()
self.pm.update()
class TimedProgressBar(QProgressBar):
"""A QProgressBar showing a certain time elapse."""
hideOnTimeout = True
def __init__(self, parent=None):
super(TimedProgressBar, self).__init__(parent, minimum=0, maximum=100)
self._timeline = QTimeLine(updateInterval=100, frameChanged=self.setValue)
self._timeline.setFrameRange(0, 100)
self._hideTimer = QTimer(timeout=self._done, singleShot=True, interval=3000)
def start(self, total, elapsed=0.0):
"""Starts showing progress.
total is the number of seconds (maybe float) the timeline will last,
elapsed (defaulting to 0) is the value to start with.
"""
self._hideTimer.stop()
self._timeline.stop()
self._timeline.setDuration(total * 1000)
self._timeline.setCurrentTime(elapsed * 1000)
self.setValue(self._timeline.currentFrame())
self._timeline.resume()
if self.hideOnTimeout:
self.show()
def stop(self, showFinished=True):
"""Ends the progress display.
If showFinished is True (the default), 100% is shown for a few
seconds and then the progress is reset.
The progressbar is hidden if the hideOnTimeout attribute is True.
"""
self._hideTimer.stop()
self._timeline.stop()
if showFinished:
self.setValue(100)
self._hideTimer.start()
else:
self._done()
def _done(self):
if self.hideOnTimeout:
self.hide()
self.reset()
class Window(QWidget):
def __init__(self, *args, **kwargs):
super(Window, self).__init__(*args, **kwargs)
self.resize(600, 200)
layout = QVBoxLayout(self)
# 配置全局属性（也可以通过start方法里的参数配置单独的属性）
CLoadingBar.config(height=2,
direction=CLoadingBar.TOP,
color='#2d8cf0',
failedColor='#ed4014')
# 子控件顶部进度
self.widget1 = QWidget(self)
layout.addWidget(self.widget1)
CLoadingBar.start(self.widget1, color='#19be6b', failedColor='#ff9900')
widget = QWidget(self)
layoutc = QHBoxLayout(widget)
layoutc.addWidget(QPushButton('开始', self, clicked=self.doStart))
layoutc.addWidget(QPushButton('结束', self, clicked=self.doFinish))
layoutc.addWidget(QPushButton('错误', self, clicked=self.doError))
layout.addWidget(widget)
# 子控件底部进度
self.widget2 = QWidget(self)
layout.addWidget(self.widget2)
CLoadingBar.start(self.widget2, direction=CLoadingBar.BOTTOM, height=6)
# 模拟进度
self.updateTimer = QTimeLine(10000,
self,
frameChanged=self.doUpdateProgress)
self.updateTimer.setFrameRange(0, 100)
# 设置数字变化曲线模拟进度的不规则变化
self.updateTimer.setCurveShape(QTimeLine.EaseInOutCurve)
def doStart(self):
"""模拟开始
"""
self.updateTimer.stop()
self.updateTimer.start()
def doFinish(self):
"""模拟结束
"""
self.updateTimer.stop()
CLoadingBar.finish(self.widget1)
CLoadingBar.finish(self.widget2)
def doError(self):
"""模拟出错
"""
self.updateTimer.stop()
CLoadingBar.error(self.widget1)
CLoadingBar.error(self.widget2)
def doUpdateProgress(self, value):
"""模拟进度值变化
:param value:
"""
CLoadingBar.update(self.widget1, value)
CLoadingBar.update(self.widget2, value)
if value == 100:
self.updateTimer.stop()
self.doFinish()
class SideSlideDecorator(QWidget):
m_slidePos: QPoint
m_slideWidgetPixmap: QPixmap
m_timeline: QTimeLine
m_backgroundPixmap: QPixmap
m_decorationColor: QColor
clicked = pyqtSignal()
def __init__(self, *args, **kwargs):
super(SideSlideDecorator, self).__init__(*args, **kwargs)
self.resize(self.maximumSize())
self.m_backgroundPixmap = QPixmap()
self.m_slidePos = QPoint()
self.m_timeline = QTimeLine()
self.m_timeline.setDuration(260)
self.m_timeline.setUpdateInterval(40)
self.m_timeline.setEasingCurve(QEasingCurve.OutQuad)
self.m_timeline.setStartFrame(0)
self.m_timeline.setEndFrame(10000)
self.m_decorationColor = QColor(0, 0, 0, 0)
def frameChanged(_value):
self.m_decorationColor = QColor(0, 0, 0, _value / 100)
self.update()
self.m_timeline.frameChanged.connect(frameChanged)
def grabSlideWidget(self, _slideWidget):
self.m_slideWidgetPixmap = _slideWidget.grab()
def grabParent(self):
# self.m_backgroundPixmap = self.parentWidget().grab()
pass
def decorate(self, _dark):
if self.m_timeline.state() == QTimeLine.Running:
self.m_timeline.stop()
self.m_timeline.setDirection(
QTimeLine.Forward if _dark else QTimeLine.Backward)
self.m_timeline.start()
def slidePos(self):
return self.m_slidePos
def setSlidePos(self, _pos):
if self.m_slidePos != _pos:
self.m_slidePos = _pos
self.update()
def paintEvent(self, _event):
painter = QPainter(self)
painter.drawPixmap(0, 0, self.m_backgroundPixmap)
painter.fillRect(self.rect(), self.m_decorationColor)
painter.drawPixmap(self.m_slidePos, self.m_slideWidgetPixmap)
super(SideSlideDecorator, self).paintEvent(_event)
def mousePressEvent(self, _event):
self.clicked.emit()
super(SideSlideDecorator, self).mousePressEvent(_event)
_slidePos = pyqtProperty(QPoint, fget=slidePos, fset=setSlidePos)