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from qtpy.QtCore import Signal
from qtpy.QtWidgets import QApplication, QWidget
from superqt.utils import qthrottled
class Demo(QWidget):
positionChanged = Signal(int, int)
def __init__(self) -> None:
super().__init__()
self.setMouseTracking(True)
self.positionChanged.connect(self._show_location)
@qthrottled(timeout=400) # call this no more than once every 400ms
def _show_location(self, x, y):
print("Throttled event at", x, y)
def mouseMoveEvent(self, event):
print("real move event at", event.x(), event.y())
self.positionChanged.emit(event.x(), event.y())
if __name__ == "__main__":
app = QApplication([])
w = Demo()
w.resize(600, 600)
w.show()
app.exec_()
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