piemenu.py 文件源码

def growBar(self, choice, amount, refresh=True):
        """Grow a selection bar toward a menu cell.

        Args:
            choice: String name of the menu cell to grow
                    the bar toward.

            amount: Floating point amount to grow the
                    bar.  Must be between 0.0 and 1.0
                    with 1.0 growing the bar all the
                    way to the cell and 0.0 not
                    growing the bar at all.

        Returns:
            True if the bar for choice meets or exceeds
            1.0 and False otherwise.

        Events:
            A PieMenuSelectEvent is posted if the bar
            length for choice meets or exceeds 1.0.
        """
        self.bars[choice] += amount

        if self.bars[choice] < 0.0:
            self.bars[choice] = 0.0

        if refresh:
            self.refresh()

        if np.isclose(self.bars[choice], 1.0) or self.bars[choice] > 1.0:
            self.bars[choice] = 1.0
            wx.PostEvent(self, PieMenuSelectEvent(choice=choice, id=wx.ID_ANY))
            return True
        else:
            return False