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from qtpy.QtCore import QTimer
class Spin:
def __init__(self, parent_widget, interval=10, step=1):
self.parent_widget = parent_widget
self.interval, self.step = interval, step
self.info = {}
def _update(self, parent_widget):
if self.parent_widget in self.info:
timer, angle, step = self.info[self.parent_widget]
if angle >= 360:
angle = 0
angle += step
self.info[parent_widget] = timer, angle, step
parent_widget.update()
def setup(self, icon_painter, painter, rect):
if self.parent_widget not in self.info:
timer = QTimer()
timer.timeout.connect(lambda: self._update(self.parent_widget))
self.info[self.parent_widget] = [timer, 0, self.step]
timer.start(self.interval)
else:
timer, angle, self.step = self.info[self.parent_widget]
x_center = rect.width() * 0.5
y_center = rect.height() * 0.5
painter.translate(x_center, y_center)
painter.rotate(angle)
painter.translate(-x_center, -y_center)
class Pulse(Spin):
def __init__(self, parent_widget):
Spin.__init__(self, parent_widget, interval=300, step=45)
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