keyboard_gui.py 文件源码

def do_plot(self, osc):
        o = self.create_osc(osc, all_oscillators=self.oscillators)
        frames = list(itertools.islice(o, self.synth.samplerate))
        if not plot:
            self.statusbar["text"] = "Cannot plot! To plot things, you need to have matplotlib installed!"
            return
        plot.figure(figsize=(16, 4))
        plot.title("Waveform")
        plot.plot(frames)
        plot.show()
        # @todo properly integrate matplotlib in the tkinter gui because the above causes gui freeze problems
        # see http://matplotlib.org/examples/user_interfaces/embedding_in_tk2.html