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90 lines (69 loc) · 2.51 KB
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Copy pathwidgets.py
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90 lines (69 loc) · 2.51 KB
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from PyQt5.QtCore import QSize, Qt
from PyQt5.QtGui import QColor, QPainter
from PyQt5.QtWidgets import QSizePolicy, QWidget
class ProgressIndicator(QWidget):
angle = None
timerId = None
delay = None
displayedWhenStopped = None
color = None
def __init__(self, parent=None):
super().__init__(parent)
self.angle = 0
self.timerId = -1
self.delay = 70
self.displayedWhenStopped = False
self.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
self.setFocusPolicy(Qt.NoFocus)
self.show()
def animationDelay(self):
return self.delay
def isAnimated(self):
return (self.timerId != -1)
def isDisplayedWhenStopped(self):
return self.displayedWhenStopped
def sizeHint(self):
return QSize(20, 20)
def startAnimation(self):
self.angle = 0
if self.timerId == -1:
self.timerId = self.startTimer(self.delay)
def stopAnimation(self):
if self.timerId != -1:
self.killTimer(self.timerId)
self.timerId = -1
self.update()
def setDisplayedWhenStopped(self, state):
self.displayedWhenStopped = state
self.update()
def timerEvent(self, event):
self.angle = (self.angle + 30) % 360
self.update()
def paintEvent(self, event):
if not self.displayedWhenStopped and not self.isAnimated():
return
width = min(self.width(), self.height())
painter = QPainter(self)
painter.setRenderHint(QPainter.Antialiasing)
outerRadius = (width - 1) * 0.5
innerRadius = (width - 1) * 0.5 * 0.38
capsuleHeight = outerRadius - innerRadius
capsuleWidth = capsuleHeight * .23 if (
width > 32) else capsuleHeight * .35
capsuleRadius = capsuleWidth / 2
for i in range(0, 12):
color = QColor(Qt.black)
if self.isAnimated():
color.setAlphaF(1.0 - (i / 12.0))
else:
color.setAlphaF(0.2)
painter.setPen(Qt.NoPen)
painter.setBrush(color)
painter.save()
painter.translate(self.rect().center())
painter.rotate(self.angle - (i * 30.0))
painter.drawRoundedRect(capsuleWidth * -0.5,
(innerRadius + capsuleHeight) * -1,
capsuleWidth, capsuleHeight, capsuleRadius,
capsuleRadius)
painter.restore()