Method draw_idle

lib/matplotlib/backends/backend_qt.py:494–504

Queue redraw of the Agg buffer and request Qt paintEvent.

(self)

        self.update()

    def draw_idle(self):
        """Queue redraw of the Agg buffer and request Qt paintEvent."""
        # The Agg draw needs to be handled by the same thread Matplotlib
        # modifies the scene graph from. Post Agg draw request to the
        # current event loop in order to ensure thread affinity and to
        # accumulate multiple draw requests from event handling.
        # TODO: queued signal connection might be safer than singleShot
        if not (getattr(self, '_draw_pending', False) or
                getattr(self, '_is_drawing', False)):
            self._draw_pending = True
            QtCore.QTimer.singleShot(0, self._draw_idle)

    def blit(self, bbox=None):
        # docstring inherited