def OnMouse(self, event: wx.MouseEvent) -> None:
pos = event.GetPosition()
x, y, r = self.ROI
if event.LeftDClick():
# Set circle centre
self.MoveCircle(pos, r)
elif event.Dragging():
# Drag circle centre or radius
drag_r = np.sqrt((x - pos[0])**2 + (y - pos[1])**2)
if self._dragging is None:
# determine what to drag
if drag_r < 0.5 * r:
# closer to center
self._dragging = "xy"
else:
# closer to edge
self._dragging = "r"
elif self._dragging == "r":
# Drag circle radius
self.MoveCircle((x, y), drag_r)
elif self._dragging == "xy":
# Drag circle centre
self.MoveCircle(pos, r)
if not event.Dragging():
# Stop dragging
self._dragging = None
self.circle.SetColor("cyan")
self.canvas.Draw(Force=True)
def on_mouse(self, event: wx.MouseEvent):
if event.LeftDClick() or event.LeftDown():
clicked_time = time.time()
if clicked_time - self._last_click < 0.5:
self._nearest = not self._nearest
self.Refresh()
self._last_click = 0
else:
self._last_click = clicked_time