matplotlibwidget.py 文件源码

def setxlim(self, size):
        if self.main_x is None or self.main_y is None: return
        xmax = max(self.main_x)
        date = mdates.num2date(xmax).date()
        if size == WindowSize.ONEDAY:
            return # requires per min quotes
        elif size == WindowSize.FIVEDAY:
            return # requires per min quotes
        elif size == WindowSize.ONEMONTH:
            xmin = mdates.date2num(date-timedelta(days=30))
        elif size == WindowSize.THREEMONTH:
            xmin = mdates.date2num(date-timedelta(days=90))
        elif size == WindowSize.SIXMONTH:
            xmin = mdates.date2num(date-timedelta(days=180))
        elif size == WindowSize.ONEYEAR:
            xmin = mdates.date2num(date-timedelta(days=365))
        elif size == WindowSize.TWOYEAR:
            xmin = mdates.date2num(date-timedelta(days=365*2))
        elif size == WindowSize.FIVEYEAR:
            xmin = mdates.date2num(date-timedelta(days=365*5))
        elif size == WindowSize.MAX:
            xmin = min(self.main_x)

        self.axes.set_xlim([xmin, xmax])
        self.adjust_ylim(xmin, xmax)
        self.fig.canvas.draw()